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2011.11639
Cristina Postigo
Maria Vittoria Barbieri, Luis Simon Monllor-Alcaraz, Cristina Postigo, Miren Lopez de Alda
Improved fully automated method for the determination of medium to highly polar pesticides in surface and groundwater and application in two distinct agriculture-impacted areas
Published in Science of the Total Environment
Science of The Total Environment Volume 745, 25 November 2020, 140650
10.1016/j.scitotenv.2020.140650
null
q-bio.OT
http://creativecommons.org/licenses/by/4.0/
Water is an essential resource for all living organisms. The continuous and increasing use of pesticides in agricultural and urban activities results in the pollution of water resources and represents an environmental risk. To control and reduce pesticide pollution, reliable multi-residue methods for the detection of...
[ { "created": "Mon, 23 Nov 2020 17:47:30 GMT", "version": "v1" } ]
2020-11-25
[ [ "Barbieri", "Maria Vittoria", "" ], [ "Monllor-Alcaraz", "Luis Simon", "" ], [ "Postigo", "Cristina", "" ], [ "de Alda", "Miren Lopez", "" ] ]
Water is an essential resource for all living organisms. The continuous and increasing use of pesticides in agricultural and urban activities results in the pollution of water resources and represents an environmental risk. To control and reduce pesticide pollution, reliable multi-residue methods for the detection of t...
1309.0547
Ian Dworkin
Christopher H. Chandler, Sudarshan Chari, David Tack and Ian Dworkin
Causes and Consequences of genetic background effects illuminated by integrative genomic analysis
Accepted in Genetics
Genetics 2014 196(4):1321-1336
10.1534/genetics.113.159426
null
q-bio.GN q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phenotypic consequences of individual mutations are modulated by the wild type genetic background in which they occur.Although such background dependence is widely observed, we do not know whether general patterns across species and traits exist, nor about the mechanisms underlying it. We also lack knowledge on h...
[ { "created": "Mon, 2 Sep 2013 21:12:14 GMT", "version": "v1" }, { "created": "Thu, 23 Jan 2014 20:12:22 GMT", "version": "v2" }, { "created": "Sat, 1 Feb 2014 16:04:28 GMT", "version": "v3" } ]
2014-06-04
[ [ "Chandler", "Christopher H.", "" ], [ "Chari", "Sudarshan", "" ], [ "Tack", "David", "" ], [ "Dworkin", "Ian", "" ] ]
The phenotypic consequences of individual mutations are modulated by the wild type genetic background in which they occur.Although such background dependence is widely observed, we do not know whether general patterns across species and traits exist, nor about the mechanisms underlying it. We also lack knowledge on how...
2303.05513
Parsaoran Hutapea
Christopher M. Altenderfer, Frank N. Chang, Parsaoran Hutapea
Development of Pipetting Devices to Separate Protein Complexes
6 pages, 2 figures, Discovery to Commercialization Conference, The Nanotechnology Institute, October 2009, The Chemical Heritage Foundation, Philadelphia, PA
null
null
null
q-bio.OT physics.flu-dyn
http://creativecommons.org/publicdomain/zero/1.0/
The objective of this project is to develop an automated device used to spot protein samples on a hydrophobic membrane to be used for the patented electrophoresis method developed by Chang and Yonan in 2008 [1]. This novel method performs electrophoresis directly on hydrophobic blot membranes as opposed to the previo...
[ { "created": "Tue, 6 Dec 2022 15:44:29 GMT", "version": "v1" } ]
2023-03-13
[ [ "Altenderfer", "Christopher M.", "" ], [ "Chang", "Frank N.", "" ], [ "Hutapea", "Parsaoran", "" ] ]
The objective of this project is to develop an automated device used to spot protein samples on a hydrophobic membrane to be used for the patented electrophoresis method developed by Chang and Yonan in 2008 [1]. This novel method performs electrophoresis directly on hydrophobic blot membranes as opposed to the previous...
1705.09132
Milad Mozafari
Milad Mozafari, Saeed Reza Kheradpisheh, Timoth\'ee Masquelier, Abbas Nowzari-Dalini, Mohammad Ganjtabesh
First-spike based visual categorization using reward-modulated STDP
supplementary materials are added, Caltech face/motorbike demonstration figure is updated, some parts of the main manuscript are moved to the supplementary materials, additional network analysis and performance comparison with deep nets are added
Mozafari, Milad, et al. "First-Spike-Based Visual Categorization Using Reward-Modulated STDP". IEEE Transactions on Neural Networks and Learning Systems (2018). DOI: https://doi.org/10.1109/TNNLS.2018.2826721
10.1109/TNNLS.2018.2826721
null
q-bio.NC cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Reinforcement learning (RL) has recently regained popularity, with major achievements such as beating the European game of Go champion. Here, for the first time, we show that RL can be used efficiently to train a spiking neural network (SNN) to perform object recognition in natural images without using an external cl...
[ { "created": "Thu, 25 May 2017 11:38:16 GMT", "version": "v1" }, { "created": "Tue, 2 Jan 2018 11:31:48 GMT", "version": "v2" }, { "created": "Tue, 10 Jul 2018 12:20:52 GMT", "version": "v3" } ]
2018-07-11
[ [ "Mozafari", "Milad", "" ], [ "Kheradpisheh", "Saeed Reza", "" ], [ "Masquelier", "Timothée", "" ], [ "Nowzari-Dalini", "Abbas", "" ], [ "Ganjtabesh", "Mohammad", "" ] ]
Reinforcement learning (RL) has recently regained popularity, with major achievements such as beating the European game of Go champion. Here, for the first time, we show that RL can be used efficiently to train a spiking neural network (SNN) to perform object recognition in natural images without using an external clas...
q-bio/0411028
Manuel Middendorf
Manuel Middendorf, Anshul Kundaje, Chris Wiggins, Yoav Freund, Christina Leslie
Predicting Genetic Regulatory Response Using Classification
8 pages, 4 figures, presented at Twelfth International Conference on Intelligent Systems for Molecular Biology (ISMB 2004), supplemental website: http://www.cs.columbia.edu/compbio/geneclass
Proceedings of the Twelfth International Conference on Intelligent Systems for Molecular Biology (ISMB 2004), Bioinformatics 20 Suppl 1, I232-I240, 2004
null
null
q-bio.QM
null
We present a novel classification-based method for learning to predict gene regulatory response. Our approach is motivated by the hypothesis that in simple organisms such as Saccharomyces cerevisiae, we can learn a decision rule for predicting whether a gene is up- or down-regulated in a particular experiment based o...
[ { "created": "Fri, 12 Nov 2004 20:39:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Middendorf", "Manuel", "" ], [ "Kundaje", "Anshul", "" ], [ "Wiggins", "Chris", "" ], [ "Freund", "Yoav", "" ], [ "Leslie", "Christina", "" ] ]
We present a novel classification-based method for learning to predict gene regulatory response. Our approach is motivated by the hypothesis that in simple organisms such as Saccharomyces cerevisiae, we can learn a decision rule for predicting whether a gene is up- or down-regulated in a particular experiment based on ...
0804.4804
Tamar Friedlander
Tamar Friedlander and Naama Brenner
From cellular properties to population asymptotics in the Population Balance Equation
Exact solution of Eq. 9 is added
PRL 101, 018104 (2008)
10.1103/PhysRevLett.101.018104
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Proliferating cell populations at steady state growth often exhibit broad protein distributions with exponential tails. The sources of this variation and its universality are of much theoretical interest. Here we address the problem by asymptotic analysis of the Population Balance Equation. We show that the steady st...
[ { "created": "Wed, 30 Apr 2008 12:06:25 GMT", "version": "v1" }, { "created": "Mon, 2 Jun 2008 13:32:47 GMT", "version": "v2" }, { "created": "Thu, 24 Jul 2008 10:03:03 GMT", "version": "v3" } ]
2008-07-24
[ [ "Friedlander", "Tamar", "" ], [ "Brenner", "Naama", "" ] ]
Proliferating cell populations at steady state growth often exhibit broad protein distributions with exponential tails. The sources of this variation and its universality are of much theoretical interest. Here we address the problem by asymptotic analysis of the Population Balance Equation. We show that the steady stat...
0704.0357
Gergely J Sz\"oll\H{o}si
Gergely J Szollosi and Imre Derenyi
Evolutionary games on minimally structured populations
Supporting information available as EPAPS Document No. E-PLEEE8-78-144809 at http://ftp.aip.org/epaps/phys_rev_e/E-PLEEE8-78-144809/
PHYSICAL REVIEW E 78, 031919 (2008)
10.1103/PhysRevE.78.031919
null
q-bio.PE q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Population structure induced by both spatial embedding and more general networks of interaction, such as model social networks, have been shown to have a fundamental effect on the dynamics and outcome of evolutionary games. These effects have, however, proved to be sensitive to the details of the underlying topology ...
[ { "created": "Tue, 3 Apr 2007 11:02:47 GMT", "version": "v1" }, { "created": "Fri, 13 Apr 2007 15:49:13 GMT", "version": "v2" }, { "created": "Wed, 15 Oct 2008 11:29:30 GMT", "version": "v3" } ]
2009-11-13
[ [ "Szollosi", "Gergely J", "" ], [ "Derenyi", "Imre", "" ] ]
Population structure induced by both spatial embedding and more general networks of interaction, such as model social networks, have been shown to have a fundamental effect on the dynamics and outcome of evolutionary games. These effects have, however, proved to be sensitive to the details of the underlying topology an...
2212.01191
Fabian Gr\"unewald
Peter C. Kroon, Fabian Gr\"unewald, Jonathan Barnoud, Marco van Tilburg, Paulo C. T. Souza, Tsjerk A. Wassenaar, Siewert-Jan Marrink
Martinize2 and Vermouth: Unified Framework for Topology Generation
corresponding authors: F. Gr\"unewald f.grunewald[at]rug.nl; S. J. Marrink s.j.marrink[at]rug.nl; changes made in v2: new benchmark test-case; data availability statement; language corrections; changes made in v3: additional test cases for non-protein molecules; updated explanation of the graph matching algorit...
null
null
null
q-bio.QM cond-mat.other cs.CE
http://creativecommons.org/licenses/by/4.0/
Ongoing advances in force field and computer hardware development enable the use of molecular dynamics (MD) to simulate increasingly complex systems with the ultimate goal of reaching cellular complexity. At the same time, rational design by high-throughput (HT) simulations is another forefront of MD. In these areas,...
[ { "created": "Tue, 29 Nov 2022 11:23:42 GMT", "version": "v1" }, { "created": "Fri, 30 Jun 2023 12:44:38 GMT", "version": "v2" }, { "created": "Tue, 9 Apr 2024 09:49:09 GMT", "version": "v3" } ]
2024-04-10
[ [ "Kroon", "Peter C.", "" ], [ "Grünewald", "Fabian", "" ], [ "Barnoud", "Jonathan", "" ], [ "van Tilburg", "Marco", "" ], [ "Souza", "Paulo C. T.", "" ], [ "Wassenaar", "Tsjerk A.", "" ], [ "Marrink", "Siewert-J...
Ongoing advances in force field and computer hardware development enable the use of molecular dynamics (MD) to simulate increasingly complex systems with the ultimate goal of reaching cellular complexity. At the same time, rational design by high-throughput (HT) simulations is another forefront of MD. In these areas, t...
1604.02553
P. Gaspard
Pierre Gaspard
Kinetics and thermodynamics of exonuclease-deficient DNA polymerases
Physical Review E (2016)
Phys. Rev. E 93, 042419 (2016)
10.1103/PhysRevE.93.042419
null
q-bio.SC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A kinetic theory is developed for exonuclease-deficient DNA polymerases, based on the experimental observation that the rates depend not only on the newly incorporated nucleotide, but also on the previous one, leading to the growth of Markovian DNA sequences from a Bernoullian template. The dependences on nucleotide ...
[ { "created": "Sat, 9 Apr 2016 12:20:36 GMT", "version": "v1" } ]
2018-01-04
[ [ "Gaspard", "Pierre", "" ] ]
A kinetic theory is developed for exonuclease-deficient DNA polymerases, based on the experimental observation that the rates depend not only on the newly incorporated nucleotide, but also on the previous one, leading to the growth of Markovian DNA sequences from a Bernoullian template. The dependences on nucleotide co...
1801.03843
Francesc Rossell\'o
Tom\'as M. Coronado, Arnau Mir, Francesc Rossell\'o
The probabilities of trees and cladograms under Ford's $\alpha$-model
9 pages
The Scientific World Journal Vol. 2018, Article ID 1916094, 7 pages
10.1155/2018/1916094
null
q-bio.PE math.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We give correct explicit formulas for the probabilities of rooted binary trees and cladograms under Ford's $\alpha$-model.
[ { "created": "Thu, 11 Jan 2018 16:07:53 GMT", "version": "v1" } ]
2019-03-29
[ [ "Coronado", "Tomás M.", "" ], [ "Mir", "Arnau", "" ], [ "Rosselló", "Francesc", "" ] ]
We give correct explicit formulas for the probabilities of rooted binary trees and cladograms under Ford's $\alpha$-model.
2303.00163
Stefanie I. Becker
Stefanie I. Becker, Zachary Hamblin-Frohman, Hongfeng Xia and Zeguo Qiu
Tuning to non-veridical features in attention and perceptual decision-making
33 pages (double-spaced), 6 figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
When searching for a lost item, we tune attention to the known properties of the object. Previously, it was believed that attention is tuned to the veridical attributes of the search target (e.g., orange), or an attribute that is slightly shifted away from irrelevant features towards a value that can more optimally d...
[ { "created": "Wed, 1 Mar 2023 01:32:00 GMT", "version": "v1" } ]
2023-03-02
[ [ "Becker", "Stefanie I.", "" ], [ "Hamblin-Frohman", "Zachary", "" ], [ "Xia", "Hongfeng", "" ], [ "Qiu", "Zeguo", "" ] ]
When searching for a lost item, we tune attention to the known properties of the object. Previously, it was believed that attention is tuned to the veridical attributes of the search target (e.g., orange), or an attribute that is slightly shifted away from irrelevant features towards a value that can more optimally dis...
2310.02300
J. C. Phillips
J. C. Phillips
Why and How Did the COVID Pandemic End Abruptly?
5 pages, 1 figure
null
null
null
q-bio.OT
http://creativecommons.org/licenses/by/4.0/
Phase transition theory, implemented quantitatively by thermodynamic scaling, has explained the evolution of Coronavirus extremely high contagiousness caused by a few key mutations from CoV2003 to CoV2019 identified among hundreds, as well as the later 2021 evolution to Omicron caused by 30 mutations. It also showed ...
[ { "created": "Tue, 3 Oct 2023 14:39:35 GMT", "version": "v1" } ]
2023-10-05
[ [ "Phillips", "J. C.", "" ] ]
Phase transition theory, implemented quantitatively by thermodynamic scaling, has explained the evolution of Coronavirus extremely high contagiousness caused by a few key mutations from CoV2003 to CoV2019 identified among hundreds, as well as the later 2021 evolution to Omicron caused by 30 mutations. It also showed th...
1803.04364
Sheraz Khan
Sheraz Khan, Javeria Hashmi, Fahimeh Mamashli, Konstantinos Michmizos, Manfred Kitzbichler, Hari Bharadwaj, Yousra Bekhti, Santosh Ganesan, Keri A Garel, Susan Whitfield-Gabrieli, Randy Gollub, Jian Kong, Lucia M Vaina, Kunjan Rana, Steven Stufflebeam, Matti Hamalainen, and Tal Kenet
Maturation Trajectories of Cortical Resting-State Networks Depend on the Mediating Frequency Band
null
null
null
null
q-bio.NC cs.DM stat.ML
http://creativecommons.org/licenses/by-nc-sa/4.0/
The functional significance of resting state networks and their abnormal manifestations in psychiatric disorders are firmly established, as is the importance of the cortical rhythms in mediating these networks. Resting state networks are known to undergo substantial reorganization from childhood to adulthood, but whe...
[ { "created": "Tue, 13 Feb 2018 01:04:40 GMT", "version": "v1" } ]
2018-03-13
[ [ "Khan", "Sheraz", "" ], [ "Hashmi", "Javeria", "" ], [ "Mamashli", "Fahimeh", "" ], [ "Michmizos", "Konstantinos", "" ], [ "Kitzbichler", "Manfred", "" ], [ "Bharadwaj", "Hari", "" ], [ "Bekhti", "Yousra", ...
The functional significance of resting state networks and their abnormal manifestations in psychiatric disorders are firmly established, as is the importance of the cortical rhythms in mediating these networks. Resting state networks are known to undergo substantial reorganization from childhood to adulthood, but wheth...
1906.11039
Nadia Loy
Nadia Loy and Luigi Preziosi
Kinetic models with non-local sensing determining cell polarization and speed according to independent cues
null
null
null
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cells move by run and tumble, a kind of dynamics in which the cell alternates runs over straight lines and re-orientations. This erratic motion may be influenced by external factors, like chemicals, nutrients, the extra-cellular matrix, in the sense that the cell measures the external field and elaborates the signal ...
[ { "created": "Mon, 17 Jun 2019 16:15:30 GMT", "version": "v1" }, { "created": "Thu, 27 Jun 2019 06:43:59 GMT", "version": "v2" }, { "created": "Mon, 1 Jul 2019 14:06:31 GMT", "version": "v3" } ]
2019-07-02
[ [ "Loy", "Nadia", "" ], [ "Preziosi", "Luigi", "" ] ]
Cells move by run and tumble, a kind of dynamics in which the cell alternates runs over straight lines and re-orientations. This erratic motion may be influenced by external factors, like chemicals, nutrients, the extra-cellular matrix, in the sense that the cell measures the external field and elaborates the signal ev...
2309.15397
C.C. Alan Fung
Huilin Zhao and Sungchil Yang and Chi Chung Alan Fung
Short-Term Postsynaptic Plasticity Facilitates Predictive Tracking in Continuous Attractors
29 pages, 9 figures
null
null
null
q-bio.NC cond-mat.dis-nn
http://creativecommons.org/licenses/by/4.0/
The N-methyl-D-aspartate receptor (NMDAR) is a crucial component of synaptic transmission, and its dysfunction is implicated in many neurological diseases and psychiatric conditions. NMDAR-based short-term postsynaptic plasticity (STPP) is a newly discovered postsynaptic response facilitation mechanism. Our group has...
[ { "created": "Wed, 27 Sep 2023 04:40:51 GMT", "version": "v1" } ]
2023-09-28
[ [ "Zhao", "Huilin", "" ], [ "Yang", "Sungchil", "" ], [ "Fung", "Chi Chung Alan", "" ] ]
The N-methyl-D-aspartate receptor (NMDAR) is a crucial component of synaptic transmission, and its dysfunction is implicated in many neurological diseases and psychiatric conditions. NMDAR-based short-term postsynaptic plasticity (STPP) is a newly discovered postsynaptic response facilitation mechanism. Our group has s...
1205.1912
Jan Urban
Jan Urban
Blank measurement based time-alignment in LC-MS
Urban J., Hrouzek P., Van\v{e}k J., Kopeck\'y J., \v{S}tys D., Time-Alignment in HPLC-MS based on blank measurement, 36th International symposium on High-Performance Liquid Phase separations and Related Techniques, Budapest, Hungary, 2011. Urban J., Hrouzek P., Van\v{e}k J., Kopeck\'y J., \v{S}tys D., Blank mea...
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Here are presenting the blank based time-alignment (BBTA) as a strong analytical approach for treatment of non-linear shift in time occurring in HPLC-MS data. Need of such tool in recent large dataset produced by analytical chemistry and so-called omics studies is evident. Proposed approach is based on measurement an...
[ { "created": "Wed, 9 May 2012 08:51:38 GMT", "version": "v1" } ]
2016-11-11
[ [ "Urban", "Jan", "" ] ]
Here are presenting the blank based time-alignment (BBTA) as a strong analytical approach for treatment of non-linear shift in time occurring in HPLC-MS data. Need of such tool in recent large dataset produced by analytical chemistry and so-called omics studies is evident. Proposed approach is based on measurement and ...
1809.06997
Shou-Wen Wang
Shou-Wen Wang, Lei-Han Tang
Emergence of collective oscillations in adaptive cells
11 pages and 6 figures for the main text. 18 pages and 14 figures for supplementary
null
null
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Collective oscillation of cells in a population has been reported under diverse biological contexts and with vastly different molecular constructs. Could there be common principles similar to those that govern spontaneous oscillation in mechanical or electrical systems? Here, we answer this question in the affirmativ...
[ { "created": "Wed, 19 Sep 2018 03:30:04 GMT", "version": "v1" }, { "created": "Thu, 27 Sep 2018 16:20:40 GMT", "version": "v2" }, { "created": "Fri, 5 Jul 2019 16:01:26 GMT", "version": "v3" } ]
2019-07-08
[ [ "Wang", "Shou-Wen", "" ], [ "Tang", "Lei-Han", "" ] ]
Collective oscillation of cells in a population has been reported under diverse biological contexts and with vastly different molecular constructs. Could there be common principles similar to those that govern spontaneous oscillation in mechanical or electrical systems? Here, we answer this question in the affirmative ...
1008.0717
Tsvi Tlusty
Arbel D. Tadmor, Tsvi Tlusty
A Coarse-Grained Biophysical Model of E. coli and Its Application to Perturbation of the rRNA Operon Copy Number
null
PLoS Comput Biol. 2008 May 2;4(4):e1000038
10.1371/journal.pcbi.1000038
null
q-bio.MN physics.bio-ph q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a biophysical model of Escherichia coli that predicts growth rate and an effective cellular composition from an effective, coarse-grained representation of its genome. We assume that E. coli is in a state of balanced exponential steadystate growth, growing in a temporally and spatially constant environment...
[ { "created": "Wed, 4 Aug 2010 08:47:56 GMT", "version": "v1" } ]
2010-08-05
[ [ "Tadmor", "Arbel D.", "" ], [ "Tlusty", "Tsvi", "" ] ]
We propose a biophysical model of Escherichia coli that predicts growth rate and an effective cellular composition from an effective, coarse-grained representation of its genome. We assume that E. coli is in a state of balanced exponential steadystate growth, growing in a temporally and spatially constant environment, ...
q-bio/0502003
Anastasia Anishchenko
A. Anishchenko (1), E. Bienenstock (1), A. Treves (2) ((1) Brown University, (2) SISSA)
Autoassociative Memory Retrieval and Spontaneous Activity Bumps in Small-World Networks of Integrate-and-Fire Neurons
25 pages, 7 figures; submitted to Neural Computation
null
null
null
q-bio.NC
null
Qualitatively, some real networks in the brain could be characterized as 'small worlds', in the sense that the structure of their connections is intermediate between the extremes of an orderly geometric arrangement and of a geometry-independent random mesh. Small worlds can be defined more precisely in terms of their...
[ { "created": "Fri, 4 Feb 2005 03:05:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Anishchenko", "A.", "" ], [ "Bienenstock", "E.", "" ], [ "Treves", "A.", "" ] ]
Qualitatively, some real networks in the brain could be characterized as 'small worlds', in the sense that the structure of their connections is intermediate between the extremes of an orderly geometric arrangement and of a geometry-independent random mesh. Small worlds can be defined more precisely in terms of their m...
2402.09163
Emma Kun
P\'eter Ozsv\'art, Emma Kun
Cosmic radiation drives quasi-periodic changes in the diversity of siliceous marine microplankton
13 Pages, 2 Figures. Submitted to Astrobiology. Comments welcome
null
null
null
q-bio.PE astro-ph.EP astro-ph.GA astro-ph.HE physics.ao-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Radiolarians are significant contributors to the oceanic primary productivity and the global silica cycle in the last 500 Myr. Their diversity throughout the Phanerozoic shows periodic fluctuations. We identify a possible abiotic candidate for driving these patterns which seems to potentially influence radiolarian di...
[ { "created": "Wed, 14 Feb 2024 13:27:31 GMT", "version": "v1" } ]
2024-02-15
[ [ "Ozsvárt", "Péter", "" ], [ "Kun", "Emma", "" ] ]
Radiolarians are significant contributors to the oceanic primary productivity and the global silica cycle in the last 500 Myr. Their diversity throughout the Phanerozoic shows periodic fluctuations. We identify a possible abiotic candidate for driving these patterns which seems to potentially influence radiolarian dive...
2103.06562
Renaud Jolivet
Dmytro Grytskyy and Renaud B. Jolivet
A learning rule balancing energy consumption and information maximization in a feed-forward neuronal network
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Information measures are often used to assess the efficacy of neural networks, and learning rules can be derived through optimization procedures on such measures. In biological neural networks, computation is restricted by the amount of available resources. Considering energy restrictions, it is thus reasonable to ba...
[ { "created": "Thu, 11 Mar 2021 09:41:53 GMT", "version": "v1" } ]
2021-03-12
[ [ "Grytskyy", "Dmytro", "" ], [ "Jolivet", "Renaud B.", "" ] ]
Information measures are often used to assess the efficacy of neural networks, and learning rules can be derived through optimization procedures on such measures. In biological neural networks, computation is restricted by the amount of available resources. Considering energy restrictions, it is thus reasonable to bala...
1205.1322
Alex Skvortsov
P. Katauskis, P. Skakauskas, A. Skvortsov
The receptor-toxin-antibody interaction: Mathematical model and numerical simulation
6 pages, 7 figures
null
null
null
q-bio.CB
http://creativecommons.org/licenses/publicdomain/
A reaction-diffusion model of receptor-toxin-antibody (RTA) interaction is studied numerically. The protective properties of an antibody against a given toxin are evaluated for a spherical cell placed into a toxin-antibody solution. The selection of parameters for numerical simulation approximately corresponds to the...
[ { "created": "Mon, 7 May 2012 08:49:47 GMT", "version": "v1" }, { "created": "Tue, 5 Jun 2012 07:44:52 GMT", "version": "v2" } ]
2012-06-06
[ [ "Katauskis", "P.", "" ], [ "Skakauskas", "P.", "" ], [ "Skvortsov", "A.", "" ] ]
A reaction-diffusion model of receptor-toxin-antibody (RTA) interaction is studied numerically. The protective properties of an antibody against a given toxin are evaluated for a spherical cell placed into a toxin-antibody solution. The selection of parameters for numerical simulation approximately corresponds to the p...
1309.2622
Liane Gabora
Liane Gabora
Five clarifications about cultural evolution
23 pages. arXiv admin note: substantial text overlap with arXiv:1206.4386
Journal of Cognition and Culture, 11, 61-83 (2011)
10.1163/156853711X568699
null
q-bio.PE q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper reviews and clarifies five misunderstandings about cultural evolution identified by Henrich, Boyd, and Richerson (2008). First, cultural representations are neither discrete nor continuous; they are distributed across neurons that respond to microfeatures. This enables associations to be made, and cultural...
[ { "created": "Tue, 10 Sep 2013 19:31:05 GMT", "version": "v1" }, { "created": "Sun, 30 Jun 2019 02:17:23 GMT", "version": "v2" } ]
2019-07-02
[ [ "Gabora", "Liane", "" ] ]
This paper reviews and clarifies five misunderstandings about cultural evolution identified by Henrich, Boyd, and Richerson (2008). First, cultural representations are neither discrete nor continuous; they are distributed across neurons that respond to microfeatures. This enables associations to be made, and cultural c...
2310.13806
Brian Hutchinson
Sarah Coffland and Katie Christensen and Filip Jagodzinski and Brian Hutchinson
RoseNet: Predicting Energy Metrics of Double InDel Mutants Using Deep Learning
Presented at Computational Structural Bioinformatics Workshop 2023
Proceedings of the 14th ACM International Conference on Bioinformatics, Computational Biology, and Health Informatics. ACM BCB 2023
10.1145/3584371.3612951
null
q-bio.BM cs.AI cs.LG q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An amino acid insertion or deletion, or InDel, can have profound and varying functional impacts on a protein's structure. InDel mutations in the transmembrane conductor regulator protein for example give rise to cystic fibrosis. Unfortunately performing InDel mutations on physical proteins and studying their effects ...
[ { "created": "Fri, 20 Oct 2023 20:36:13 GMT", "version": "v1" } ]
2023-10-24
[ [ "Coffland", "Sarah", "" ], [ "Christensen", "Katie", "" ], [ "Jagodzinski", "Filip", "" ], [ "Hutchinson", "Brian", "" ] ]
An amino acid insertion or deletion, or InDel, can have profound and varying functional impacts on a protein's structure. InDel mutations in the transmembrane conductor regulator protein for example give rise to cystic fibrosis. Unfortunately performing InDel mutations on physical proteins and studying their effects is...
2002.00363
Jos\'e A. Cuesta
Susanna Manrubia, Jos\'e A. Cuesta, Jacobo Aguirre, Sebastian E. Ahnert, Lee Altenberg, Alejandro V. Cano, Pablo Catal\'an, Ramon Diaz-Uriarte, Santiago F. Elena, Juan Antonio Garc\'ia-Mart\'in, Paulien Hogeweg, Bhavin S. Khatri, Joachim Krug, Ard A. Louis, Nora S. Martin, Joshua L. Payne, Matthew J. Tarnowski,...
From genotypes to organisms: State-of-the-art and perspectives of a cornerstone in evolutionary dynamics
111 pages, 11 figures uses elsarticle latex class
Physics of Life Reviews 38, 55-106 (2021)
10.1016/j.plrev.2021.03.004
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Understanding how genotypes map onto phenotypes, fitness, and eventually organisms is arguably the next major missing piece in a fully predictive theory of evolution. We refer to this generally as the problem of the genotype-phenotype map. Though we are still far from achieving a complete picture of these relationshi...
[ { "created": "Sun, 2 Feb 2020 11:12:01 GMT", "version": "v1" }, { "created": "Wed, 15 Jul 2020 17:35:29 GMT", "version": "v2" }, { "created": "Wed, 17 Mar 2021 15:11:45 GMT", "version": "v3" } ]
2022-05-20
[ [ "Manrubia", "Susanna", "" ], [ "Cuesta", "José A.", "" ], [ "Aguirre", "Jacobo", "" ], [ "Ahnert", "Sebastian E.", "" ], [ "Altenberg", "Lee", "" ], [ "Cano", "Alejandro V.", "" ], [ "Catalán", "Pablo", "" ...
Understanding how genotypes map onto phenotypes, fitness, and eventually organisms is arguably the next major missing piece in a fully predictive theory of evolution. We refer to this generally as the problem of the genotype-phenotype map. Though we are still far from achieving a complete picture of these relationships...
2011.04892
Peixiao Wang
Peixiao Wang, Tao Hu, Hongqiang Liu and Xinyan Zhu
Exploring the impact of under-reported cases on the COVID-19 spatiotemporal distribution using healthcare worker infection data
null
Cities, 2022
10.1016/j.cities.2022.103593
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
A timely understanding of the spatiotemporal pattern and development trend of COVID-19 is critical for timely prevention and control. However, the under-reporting of cases is widespread in fields associated with public health. It is also possible to draw biased inferences and formulate inappropriate prevention and co...
[ { "created": "Tue, 10 Nov 2020 04:48:49 GMT", "version": "v1" }, { "created": "Thu, 26 Nov 2020 03:10:18 GMT", "version": "v2" }, { "created": "Mon, 30 Nov 2020 14:06:54 GMT", "version": "v3" }, { "created": "Sun, 13 Dec 2020 14:13:25 GMT", "version": "v4" }, { "c...
2024-01-15
[ [ "Wang", "Peixiao", "" ], [ "Hu", "Tao", "" ], [ "Liu", "Hongqiang", "" ], [ "Zhu", "Xinyan", "" ] ]
A timely understanding of the spatiotemporal pattern and development trend of COVID-19 is critical for timely prevention and control. However, the under-reporting of cases is widespread in fields associated with public health. It is also possible to draw biased inferences and formulate inappropriate prevention and cont...
1701.03448
Johannes M\"uller
Johannes M\"uller, Karin M\"unch, Bendix Koopmann, Eva Stadler, Louisa Roselius, Dieter Jahn, Richard M\"unch
Plasmid segregation and accumulation
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The segregation of plasmids in a bacterial population is investigated. Hereby, a dynamical model is formulated in terms of a size-structured population using a hyperbolic partial differential equation incorporating non-local terms (the fragmentation equation). For a large class of parameter functions this PDE can be ...
[ { "created": "Thu, 12 Jan 2017 18:35:23 GMT", "version": "v1" } ]
2017-01-13
[ [ "Müller", "Johannes", "" ], [ "Münch", "Karin", "" ], [ "Koopmann", "Bendix", "" ], [ "Stadler", "Eva", "" ], [ "Roselius", "Louisa", "" ], [ "Jahn", "Dieter", "" ], [ "Münch", "Richard", "" ] ]
The segregation of plasmids in a bacterial population is investigated. Hereby, a dynamical model is formulated in terms of a size-structured population using a hyperbolic partial differential equation incorporating non-local terms (the fragmentation equation). For a large class of parameter functions this PDE can be re...
1501.00019
Peter Waddell
Peter J. Waddell
Extended Distance-based Phylogenetic Analyses Applied to 3D Homo Fossil Skull Evolution
42 pages, 18 figures
null
null
null
q-bio.PE q-bio.QM stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This article shows how 3D geometric morphometric data can be analyzed using newly developed distance-based evolutionary tree inference methods, with extensions to planar graphs. Application of these methods to 3D representations of the skullcap (calvaria) of 13 diverse skulls in the genus Homo, ranging from Homo erec...
[ { "created": "Tue, 30 Dec 2014 21:05:27 GMT", "version": "v1" } ]
2015-01-05
[ [ "Waddell", "Peter J.", "" ] ]
This article shows how 3D geometric morphometric data can be analyzed using newly developed distance-based evolutionary tree inference methods, with extensions to planar graphs. Application of these methods to 3D representations of the skullcap (calvaria) of 13 diverse skulls in the genus Homo, ranging from Homo erectu...
1405.3946
Hatef Sadeghi
Hatef Sadeghi, S. Bailey and Colin J. Lambert
Silicene-based DNA Nucleobase Sensing
null
Appl. Phys. Lett. 104, 103104 (2014)
10.1063/1.4868123
null
q-bio.QM cond-mat.mes-hall cond-mat.mtrl-sci physics.chem-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a DNA sequencing scheme based on silicene nanopores. Using first principles theory, we compute the electrical properties of such pores in the absence and presence of nucleobases. Within a two-terminal geometry, we analyze the current-voltage relation in the presence of nucleobases with various orientations...
[ { "created": "Tue, 13 May 2014 11:21:49 GMT", "version": "v1" } ]
2014-05-16
[ [ "Sadeghi", "Hatef", "" ], [ "Bailey", "S.", "" ], [ "Lambert", "Colin J.", "" ] ]
We propose a DNA sequencing scheme based on silicene nanopores. Using first principles theory, we compute the electrical properties of such pores in the absence and presence of nucleobases. Within a two-terminal geometry, we analyze the current-voltage relation in the presence of nucleobases with various orientations. ...
1605.01155
Lincong Wang
Lincong Wang
The contributions of surface charge and geometry to protein-solvent interaction
null
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
To better understand protein-solvent interaction we have analyzed a variety of physical and geometrical properties of the solvent-excluded surfaces (SESs) over a large set of soluble proteins with crystal structures. We discover that all have net negative surface charges and permanent electric dipoles. Moreover both ...
[ { "created": "Wed, 4 May 2016 06:34:11 GMT", "version": "v1" } ]
2016-05-05
[ [ "Wang", "Lincong", "" ] ]
To better understand protein-solvent interaction we have analyzed a variety of physical and geometrical properties of the solvent-excluded surfaces (SESs) over a large set of soluble proteins with crystal structures. We discover that all have net negative surface charges and permanent electric dipoles. Moreover both SE...
1012.0985
Andree-Aimee Toucas
Jean Geringer, Laurent Navarro, Bernard Forest
Influence of proteins from physiological solutions on the electrochemical behaviour of the Ti-6Al-4V alloy: reproducibility and time-frequency dependence. ---- Influence de la teneur en prot\'eines de solutions physiologiques sur le comportement \'electrochimique du Ti-6Al-4V : reproductibilit\'e et repr\'esent...
null
Mat\'eriaux & Techniques 98, 1 (2010) 59-68
10.1051/mattech/2010020
JG-M\&T-98-1
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electrochemical behaviour of the biomedical and metallic alloys, especially in the orthopaedic implants fields, raises many questions. This study is dedicated for studying the Ti-6Al-4V alloy, by electrochemical impedance spectroscopy, EIS, in various physiological media,: Ringer solution, phosphate buffered solu...
[ { "created": "Sun, 5 Dec 2010 10:33:52 GMT", "version": "v1" } ]
2020-07-17
[ [ "Geringer", "Jean", "" ], [ "Navarro", "Laurent", "" ], [ "Forest", "Bernard", "" ] ]
The electrochemical behaviour of the biomedical and metallic alloys, especially in the orthopaedic implants fields, raises many questions. This study is dedicated for studying the Ti-6Al-4V alloy, by electrochemical impedance spectroscopy, EIS, in various physiological media,: Ringer solution, phosphate buffered soluti...
1903.11373
Dalit Engelhardt
Dalit Engelhardt
Dynamic Control of Stochastic Evolution: A Deep Reinforcement Learning Approach to Adaptively Targeting Emergent Drug Resistance
null
Journal of Machine Learning Research 21(203): 1-30, 2020
null
null
q-bio.PE cs.LG q-bio.QM stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The challenge in controlling stochastic systems in which low-probability events can set the system on catastrophic trajectories is to develop a robust ability to respond to such events without significantly compromising the optimality of the baseline control policy. This paper presents CelluDose, a stochastic simulat...
[ { "created": "Wed, 27 Mar 2019 12:25:48 GMT", "version": "v1" }, { "created": "Thu, 15 Oct 2020 22:21:53 GMT", "version": "v2" } ]
2020-10-28
[ [ "Engelhardt", "Dalit", "" ] ]
The challenge in controlling stochastic systems in which low-probability events can set the system on catastrophic trajectories is to develop a robust ability to respond to such events without significantly compromising the optimality of the baseline control policy. This paper presents CelluDose, a stochastic simulatio...
1211.0646
Alex Robson
Alex Robson, Kevin Burrage, Mark Leake
Inferring diffusion in single live cells at the single molecule level
combined ms (1-37 pages, 8 figures) and SI (38-55, 3 figures)
null
10.1098/rstb.2012.0029
null
q-bio.QM physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The movement of molecules inside living cells is a fundamental feature of biological processes. The ability to both observe and analyse the details of molecular diffusion in vivo at the single molecule and single cell level can add significant insight into understanding molecular architectures of diffusing molecules ...
[ { "created": "Sat, 3 Nov 2012 22:43:52 GMT", "version": "v1" } ]
2012-11-21
[ [ "Robson", "Alex", "" ], [ "Burrage", "Kevin", "" ], [ "Leake", "Mark", "" ] ]
The movement of molecules inside living cells is a fundamental feature of biological processes. The ability to both observe and analyse the details of molecular diffusion in vivo at the single molecule and single cell level can add significant insight into understanding molecular architectures of diffusing molecules an...
1904.03531
Sliman Bensmaia
Elizaveta V. Okorokova, James M. Goodman, Nicholas G. Hatsopoulos and Sliman J. Bensmaia
Decoding hand kinematics from population responses in sensorimotor cortex during grasping
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The hand, a complex effector comprising dozens of degrees of freedom of movement, endows us with the ability to flexibly, precisely, and effortlessly interact with objects. The neural signals associated with dexterous hand movements in primary motor cortex (M1) and somatosensory cortex (SC) have received comparativel...
[ { "created": "Sat, 6 Apr 2019 21:05:30 GMT", "version": "v1" }, { "created": "Thu, 20 Jun 2019 03:58:50 GMT", "version": "v2" } ]
2019-06-21
[ [ "Okorokova", "Elizaveta V.", "" ], [ "Goodman", "James M.", "" ], [ "Hatsopoulos", "Nicholas G.", "" ], [ "Bensmaia", "Sliman J.", "" ] ]
The hand, a complex effector comprising dozens of degrees of freedom of movement, endows us with the ability to flexibly, precisely, and effortlessly interact with objects. The neural signals associated with dexterous hand movements in primary motor cortex (M1) and somatosensory cortex (SC) have received comparatively ...
1209.3802
Adel Dayarian
Adel Dayarian and Anirvan M. Sengupta
Titration and hysteresis in epigenetic chromatin silencing
null
2013 Phys. Biol. 10 036005
10.1088/1478-3975/10/3/036005
NSF-KITP-12-172
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Epigenetic mechanisms of silencing via heritable chromatin modifications play a major role in gene regulation and cell fate specification. We consider a model of epigenetic chromatin silencing in budding yeast and study the bifurcation diagram and characterize the bistable and the monostable regimes. The main focus o...
[ { "created": "Mon, 17 Sep 2012 21:38:47 GMT", "version": "v1" }, { "created": "Mon, 24 Sep 2012 20:25:40 GMT", "version": "v2" }, { "created": "Fri, 15 Feb 2013 00:32:25 GMT", "version": "v3" } ]
2013-04-24
[ [ "Dayarian", "Adel", "" ], [ "Sengupta", "Anirvan M.", "" ] ]
Epigenetic mechanisms of silencing via heritable chromatin modifications play a major role in gene regulation and cell fate specification. We consider a model of epigenetic chromatin silencing in budding yeast and study the bifurcation diagram and characterize the bistable and the monostable regimes. The main focus of ...
1607.01010
Evelyn Tang
Evelyn Tang, Chad Giusti, Graham Baum, Shi Gu, Eli Pollock, Ari E. Kahn, David Roalf, Tyler M. Moore, Kosha Ruparel, Ruben C. Gur, Raquel E. Gur, Theodore D. Satterthwaite and Danielle S. Bassett
Developmental increases in white matter network controllability support a growing diversity of brain dynamics
In press at Nature Communications
Nature Communications, 1252 (2017)
10.1038/s41467-017-01254-4
null
q-bio.NC cond-mat.dis-nn nlin.CD q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As the human brain develops, it increasingly supports coordinated control of neural activity. The mechanism by which white matter evolves to support this coordination is not well understood. We use a network representation of diffusion imaging data from 882 youth ages 8 to 22 to show that white matter connectivity be...
[ { "created": "Mon, 4 Jul 2016 20:00:00 GMT", "version": "v1" }, { "created": "Tue, 1 Nov 2016 04:03:51 GMT", "version": "v2" }, { "created": "Mon, 2 Oct 2017 20:34:39 GMT", "version": "v3" } ]
2017-11-02
[ [ "Tang", "Evelyn", "" ], [ "Giusti", "Chad", "" ], [ "Baum", "Graham", "" ], [ "Gu", "Shi", "" ], [ "Pollock", "Eli", "" ], [ "Kahn", "Ari E.", "" ], [ "Roalf", "David", "" ], [ "Moore", "Tyler M...
As the human brain develops, it increasingly supports coordinated control of neural activity. The mechanism by which white matter evolves to support this coordination is not well understood. We use a network representation of diffusion imaging data from 882 youth ages 8 to 22 to show that white matter connectivity beco...
2312.03338
Daniel Str\"ombom
Daniel Str\"ombom, Autumn Sands, Jason M. Graham, Amanda Crocker, Cameron Cloud, Grace Tulevech, Kelly Ward
Modeling human activity-related spread of the spotted lanternfly (Lycorma delicatula) in the US
14 pages, 5 figures, 2 tables
null
null
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spotted lanternfly (Lycorma delicatula) has recently spread from its native range to several other countries and forecasts predict that it may become a global invasive pest. In particular, since its confirmed presence in the United States in 2014 it has established itself as a major invasive pest in the Mid-Atlan...
[ { "created": "Wed, 6 Dec 2023 08:20:59 GMT", "version": "v1" } ]
2023-12-07
[ [ "Strömbom", "Daniel", "" ], [ "Sands", "Autumn", "" ], [ "Graham", "Jason M.", "" ], [ "Crocker", "Amanda", "" ], [ "Cloud", "Cameron", "" ], [ "Tulevech", "Grace", "" ], [ "Ward", "Kelly", "" ] ]
The spotted lanternfly (Lycorma delicatula) has recently spread from its native range to several other countries and forecasts predict that it may become a global invasive pest. In particular, since its confirmed presence in the United States in 2014 it has established itself as a major invasive pest in the Mid-Atlanti...
1602.07100
Koen Haak
Koen V. Haak, Andre F. Marquand, Christian F. Beckmann
Connectopic mapping with resting-state fMRI
null
null
10.1016/j.neuroimage.2017.06.075
null
q-bio.QM q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Brain regions are often topographically connected: nearby locations within one brain area connect with nearby locations in another area. Mapping these connection topographies, or 'connectopies' in short, is crucial for understanding how information is processed in the brain. Here, we propose principled, fully data-dr...
[ { "created": "Tue, 23 Feb 2016 09:35:34 GMT", "version": "v1" }, { "created": "Mon, 17 Jul 2017 09:39:28 GMT", "version": "v2" } ]
2017-07-18
[ [ "Haak", "Koen V.", "" ], [ "Marquand", "Andre F.", "" ], [ "Beckmann", "Christian F.", "" ] ]
Brain regions are often topographically connected: nearby locations within one brain area connect with nearby locations in another area. Mapping these connection topographies, or 'connectopies' in short, is crucial for understanding how information is processed in the brain. Here, we propose principled, fully data-driv...
1401.3254
Marcelo Sobottka
Marcelo Sobottka and Andrew G. Hart
A model capturing novel strand symmetries in bacterial DNA
This is a pre-copy-editing, author-produced preprint of an article accepted for publication in Biochemical and Biophysical Research Communications. The definitive publisher-authenticated version is available online at: http://dx.doi.org/10.1016/j.bbrc.2011.06.072 or http://www.sciencedirect.com/science/article/...
Biochemical and Biophysical Research Communications, Volume 410, Issue 4, 15 July 2011, Pages 823-828, ISSN 0006-291X
10.1016/j.bbrc.2011.06.072
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chargaff's second parity rule for short oligonucleotides states that the frequency of any short nucleotide sequence on a strand is approximately equal to the frequency of its reverse complement on the same strand. Recent studies have shown that, with the exception of organellar DNA, this parity rule generally holds f...
[ { "created": "Tue, 14 Jan 2014 16:57:24 GMT", "version": "v1" } ]
2014-01-15
[ [ "Sobottka", "Marcelo", "" ], [ "Hart", "Andrew G.", "" ] ]
Chargaff's second parity rule for short oligonucleotides states that the frequency of any short nucleotide sequence on a strand is approximately equal to the frequency of its reverse complement on the same strand. Recent studies have shown that, with the exception of organellar DNA, this parity rule generally holds for...
2108.00813
Reza Sameni
Jorge Oliveira, Francesco Renna, Paulo Dias Costa, Marcelo Nogueira, Cristina Oliveira, Carlos Ferreira, Alipio Jorge, Sandra Mattos, Thamine Hatem, Thiago Tavares, Andoni Elola, Ali Bahrami Rad, Reza Sameni, Gari D Clifford, Miguel T. Coimbra
The CirCor DigiScope Dataset: From Murmur Detection to Murmur Classification
12 pages, 6 tables, 8 figures, in IEEE Journal of Biomedical and Health Informatics
null
10.1109/JBHI.2021.3137048
null
q-bio.QM cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cardiac auscultation is one of the most cost-effective techniques used to detect and identify many heart conditions. Computer-assisted decision systems based on auscultation can support physicians in their decisions. Unfortunately, the application of such systems in clinical trials is still minimal since most of them...
[ { "created": "Mon, 2 Aug 2021 12:30:40 GMT", "version": "v1" }, { "created": "Fri, 24 Dec 2021 07:53:12 GMT", "version": "v2" } ]
2021-12-28
[ [ "Oliveira", "Jorge", "" ], [ "Renna", "Francesco", "" ], [ "Costa", "Paulo Dias", "" ], [ "Nogueira", "Marcelo", "" ], [ "Oliveira", "Cristina", "" ], [ "Ferreira", "Carlos", "" ], [ "Jorge", "Alipio", "" ...
Cardiac auscultation is one of the most cost-effective techniques used to detect and identify many heart conditions. Computer-assisted decision systems based on auscultation can support physicians in their decisions. Unfortunately, the application of such systems in clinical trials is still minimal since most of them o...
q-bio/0309026
Matthew Wiener
Ethan D. Gershon, Matthew C. Wiener, Peter E. Latham, and Barry J. Richmond
Coding Strategies in Monkey V1 and Inferior Temporal Cortices
25 pages, 8 figures. Originally submitted to the neuro-sys archive which was never publicly announced (was 9804001)
J. Neurophsysiol. 79: 1135-1144, 1998
null
null
q-bio.NC
null
We would like to know whether the statistics of neuronal responses vary across cortical areas. We examined stimulus-elicited spike count response distributions in V1 and IT cortices of awake monkeys. In both areas the distribution of spike counts for each stimulus was well-described by a Gaussian, with the log of the...
[ { "created": "Thu, 9 Apr 1998 21:25:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gershon", "Ethan D.", "" ], [ "Wiener", "Matthew C.", "" ], [ "Latham", "Peter E.", "" ], [ "Richmond", "Barry J.", "" ] ]
We would like to know whether the statistics of neuronal responses vary across cortical areas. We examined stimulus-elicited spike count response distributions in V1 and IT cortices of awake monkeys. In both areas the distribution of spike counts for each stimulus was well-described by a Gaussian, with the log of the v...
2308.16772
Srdjan Ostojic
Srdjan Ostojic and Stefano Fusi
The computational role of structure in neural activity and connectivity
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One major challenge of neuroscience is finding interesting structures in a seemingly disorganized neural activity. Often these structures have computational implications that help to understand the functional role of a particular brain area. Here we outline a unified approach to characterize these structures by inspe...
[ { "created": "Thu, 31 Aug 2023 14:49:49 GMT", "version": "v1" } ]
2023-09-01
[ [ "Ostojic", "Srdjan", "" ], [ "Fusi", "Stefano", "" ] ]
One major challenge of neuroscience is finding interesting structures in a seemingly disorganized neural activity. Often these structures have computational implications that help to understand the functional role of a particular brain area. Here we outline a unified approach to characterize these structures by inspect...
1508.05159
Ivo Siekmann
Ivo Siekmann and Horst Malchow
Competition of residents and invaders in a variable environment: Response to enemies and dangerous noise
24 pages, 18 figures, submitted to Mathematical Modelling of Natural Phenomena
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possible control of competitive invasion by infection of the invader and multiplicative noise is studied. The basic model is the Lotka-Volterra competition system with emergent carrying capacities. Several stationary solutions of the non-infected and infected system are identified as well as parameter ranges of b...
[ { "created": "Fri, 21 Aug 2015 01:20:34 GMT", "version": "v1" } ]
2015-08-24
[ [ "Siekmann", "Ivo", "" ], [ "Malchow", "Horst", "" ] ]
The possible control of competitive invasion by infection of the invader and multiplicative noise is studied. The basic model is the Lotka-Volterra competition system with emergent carrying capacities. Several stationary solutions of the non-infected and infected system are identified as well as parameter ranges of bis...
1503.01909
Petter Holme
Petter Holme
Shadows of the SIS immortality transition in small networks
Bug fixes from the first version
Phys. Rev. E 92, (2015) 012804
10.1103/PhysRevE.92.012804
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Much of the research on the behavior of the SIS model on networks has concerned the infinite size limit; in particular the phase transition between a state where outbreaks can reach a finite fraction of the population, and a state where only a finite number would be infected. For finite networks, there is also a dyna...
[ { "created": "Fri, 6 Mar 2015 11:00:08 GMT", "version": "v1" }, { "created": "Wed, 13 May 2015 06:04:23 GMT", "version": "v2" } ]
2015-07-13
[ [ "Holme", "Petter", "" ] ]
Much of the research on the behavior of the SIS model on networks has concerned the infinite size limit; in particular the phase transition between a state where outbreaks can reach a finite fraction of the population, and a state where only a finite number would be infected. For finite networks, there is also a dynami...
2306.06298
Tandy Warnow
Tandy Warnow, Steven N. Evans, and Luay Nakhleh
Progress on Constructing Phylogenetic Networks for Languages
16 pages, 2 figures
null
null
null
q-bio.PE stat.AP
http://creativecommons.org/licenses/by/4.0/
In 2006, Warnow, Evans, Ringe, and Nakhleh proposed a stochastic model (hereafter, the WERN 2006 model) of multi-state linguistic character evolution that allowed for homoplasy and borrowing. They proved that if there is no borrowing between languages and homoplastic states are known in advance, then the phylogenetic...
[ { "created": "Fri, 9 Jun 2023 23:27:21 GMT", "version": "v1" }, { "created": "Mon, 9 Oct 2023 19:06:56 GMT", "version": "v2" } ]
2023-10-11
[ [ "Warnow", "Tandy", "" ], [ "Evans", "Steven N.", "" ], [ "Nakhleh", "Luay", "" ] ]
In 2006, Warnow, Evans, Ringe, and Nakhleh proposed a stochastic model (hereafter, the WERN 2006 model) of multi-state linguistic character evolution that allowed for homoplasy and borrowing. They proved that if there is no borrowing between languages and homoplastic states are known in advance, then the phylogenetic t...
2008.07797
Mike Steel Prof.
Andrew Francis, Daniel H. Huson and Mike Steel
Normalising phylogenetic networks
18 pages, 5 figures
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by-nc-nd/4.0/
Rooted phylogenetic networks provide a way to describe species' relationships when evolution departs from the simple model of a tree. However, networks inferred from genomic data can be highly tangled, making it difficult to discern the main reticulation signals present. In this paper, we describe a natural way to tr...
[ { "created": "Tue, 18 Aug 2020 08:24:03 GMT", "version": "v1" }, { "created": "Fri, 28 May 2021 03:50:31 GMT", "version": "v2" } ]
2021-05-31
[ [ "Francis", "Andrew", "" ], [ "Huson", "Daniel H.", "" ], [ "Steel", "Mike", "" ] ]
Rooted phylogenetic networks provide a way to describe species' relationships when evolution departs from the simple model of a tree. However, networks inferred from genomic data can be highly tangled, making it difficult to discern the main reticulation signals present. In this paper, we describe a natural way to tran...
2111.04167
Jeremie Unterberger M
J. Unterberger
Exact computation of growth-rate fluctuations in random environment
17 pages
null
null
null
q-bio.PE cond-mat.stat-mech math.PR
http://creativecommons.org/licenses/by-nc-nd/4.0/
We consider a general class of Markovian models describing the growth in a randomly fluctuating environment of a clonal biological population having several phenotypes related by stochastic switching. Phenotypes differ e.g. by the level of gene expression for a population of bacteria. The time-averaged growth rate of...
[ { "created": "Sun, 7 Nov 2021 19:58:43 GMT", "version": "v1" }, { "created": "Sun, 23 Jan 2022 20:35:26 GMT", "version": "v2" } ]
2022-01-25
[ [ "Unterberger", "J.", "" ] ]
We consider a general class of Markovian models describing the growth in a randomly fluctuating environment of a clonal biological population having several phenotypes related by stochastic switching. Phenotypes differ e.g. by the level of gene expression for a population of bacteria. The time-averaged growth rate of t...
2009.13775
Maryam Ghoojaei
Maryam Ghoojaei, Reza Shirkoohi, Mojtaba Saffari, Amirnader Emamirazavi, Mehrdad Hashemi
Foot-print of Claudin and Occludin Transcriptome in Colorectal Cancer
null
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background and Purpose: Colorectal cancer as a leading cause of mortality worldwide, can be regarded as a relatively common and fatal disease with increasing incidence over recent years. Colorectal cancer is characterized by uncontrolled growth of abnormal cells occurring in different parts of the colon. About 90% of...
[ { "created": "Tue, 29 Sep 2020 04:20:52 GMT", "version": "v1" } ]
2020-09-30
[ [ "Ghoojaei", "Maryam", "" ], [ "Shirkoohi", "Reza", "" ], [ "Saffari", "Mojtaba", "" ], [ "Emamirazavi", "Amirnader", "" ], [ "Hashemi", "Mehrdad", "" ] ]
Background and Purpose: Colorectal cancer as a leading cause of mortality worldwide, can be regarded as a relatively common and fatal disease with increasing incidence over recent years. Colorectal cancer is characterized by uncontrolled growth of abnormal cells occurring in different parts of the colon. About 90% of d...
1501.04015
Thomas R. Sokolowski
Thomas R. Sokolowski and Ga\v{s}per Tka\v{c}ik
Optimizing information flow in small genetic networks. IV. Spatial coupling
17 pages, 8 figures (incl. 3 supporting figures)
null
null
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We typically think of cells as responding to external signals independently by regulating their gene expression levels, yet they often locally exchange information and coordinate. Can such spatial coupling be of benefit for conveying signals subject to gene regulatory noise? Here we extend our information-theoretic f...
[ { "created": "Fri, 16 Jan 2015 15:32:02 GMT", "version": "v1" } ]
2015-01-19
[ [ "Sokolowski", "Thomas R.", "" ], [ "Tkačik", "Gašper", "" ] ]
We typically think of cells as responding to external signals independently by regulating their gene expression levels, yet they often locally exchange information and coordinate. Can such spatial coupling be of benefit for conveying signals subject to gene regulatory noise? Here we extend our information-theoretic fra...
2305.16241
Alessandro Grecucci Prof
Bianca Monachesi, Alessandro Grecucci, Parisa Ahmadi Ghomroudi, Irene Messina
Understanding the neural architecture of emotion regulation by comparing two different strategies: A meta-analytic approach
32 pages, 3 figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
In the emotion regulation literature, the amount of neuroimaging studies on cognitive reappraisal led the impression that the same top-down, control-related neural mechanisms characterize all emotion regulation strategies. However, top-down processes may coexist with more bottom-up and emotion-focused processes that ...
[ { "created": "Thu, 25 May 2023 16:52:15 GMT", "version": "v1" } ]
2023-05-26
[ [ "Monachesi", "Bianca", "" ], [ "Grecucci", "Alessandro", "" ], [ "Ghomroudi", "Parisa Ahmadi", "" ], [ "Messina", "Irene", "" ] ]
In the emotion regulation literature, the amount of neuroimaging studies on cognitive reappraisal led the impression that the same top-down, control-related neural mechanisms characterize all emotion regulation strategies. However, top-down processes may coexist with more bottom-up and emotion-focused processes that pa...
0707.3716
Lorenzo Farina
Maria Concetta Palumbo, Lorenzo Farina, Alberto De Santis, Alessandro Giuliani, Alfredo Colosimo, Giorgio Morelli and Ida Ruberti
Post-transcriptional Regulation Drives Temporal Compartmentalization of the Yeast Metabolic Cycle
13 pages, 4 figures, 1 table
null
null
null
q-bio.CB q-bio.BM
null
The maintainance of a stable periodicity during the yeast metabolic cycle involving approximately half of the genome requires a very strict and efficient control of gene expression. For this reason, the metabolic cycle is a very good candidate for testing the role of a class of post-transcriptional regulators, the so...
[ { "created": "Wed, 25 Jul 2007 12:21:28 GMT", "version": "v1" } ]
2007-07-26
[ [ "Palumbo", "Maria Concetta", "" ], [ "Farina", "Lorenzo", "" ], [ "De Santis", "Alberto", "" ], [ "Giuliani", "Alessandro", "" ], [ "Colosimo", "Alfredo", "" ], [ "Morelli", "Giorgio", "" ], [ "Ruberti", "Ida",...
The maintainance of a stable periodicity during the yeast metabolic cycle involving approximately half of the genome requires a very strict and efficient control of gene expression. For this reason, the metabolic cycle is a very good candidate for testing the role of a class of post-transcriptional regulators, the so c...
1504.03145
Johan Elf
Mats Wallden, David Fange, \"Ozden Baltekin, Johan Elf
Fluctuations in growth rates determine the generation time and size distributions of E. coli cells
null
null
null
null
q-bio.QM q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Isogenic Escherichia coli growing exponentially in a constant environment display large variation in growth-rates, division-sizes and generation-times. It is unclear how these seemingly random cell cycles can be reconciled with the precise regulation required under conditions where the generation time is shorter than...
[ { "created": "Mon, 13 Apr 2015 11:53:44 GMT", "version": "v1" }, { "created": "Tue, 13 Oct 2015 18:04:57 GMT", "version": "v2" } ]
2015-10-14
[ [ "Wallden", "Mats", "" ], [ "Fange", "David", "" ], [ "Baltekin", "Özden", "" ], [ "Elf", "Johan", "" ] ]
Isogenic Escherichia coli growing exponentially in a constant environment display large variation in growth-rates, division-sizes and generation-times. It is unclear how these seemingly random cell cycles can be reconciled with the precise regulation required under conditions where the generation time is shorter than t...
1608.08498
Rudolf Hanel Ass Prof Dr
Rudolf Hanel
Systemic stability, cell differentiation, and evolution - A dynamical systems perspective
8 pages 4 figures
null
null
null
q-bio.CB q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Species or population that proliferate faster than others become dominant in numbers. Catalysis allows catalytic sets within a molecular reaction network to dominate the non catalytic parts of the network by processing most of the available substrate. As a consequence one may consider a 'catalytic fitness' of sets of...
[ { "created": "Tue, 30 Aug 2016 15:23:02 GMT", "version": "v1" } ]
2016-08-31
[ [ "Hanel", "Rudolf", "" ] ]
Species or population that proliferate faster than others become dominant in numbers. Catalysis allows catalytic sets within a molecular reaction network to dominate the non catalytic parts of the network by processing most of the available substrate. As a consequence one may consider a 'catalytic fitness' of sets of m...
1209.1412
Renato Vicente
Roberto H. Schonmann, Robert Boyd and Renato Vicente
The Taylor-Frank method cannot be applied to some biologically important, continuous fitness functions
9 pages, 1 figure
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Taylor-Frank method for making kin selection models when fitness is a nonlinear function of a continuous phenotype requires this function to be differentiable. This assumption sometimes fails for biologically important fitness functions, for instance in microbial data and the theory of repeated n-person games, ev...
[ { "created": "Thu, 6 Sep 2012 21:15:41 GMT", "version": "v1" } ]
2012-09-10
[ [ "Schonmann", "Roberto H.", "" ], [ "Boyd", "Robert", "" ], [ "Vicente", "Renato", "" ] ]
The Taylor-Frank method for making kin selection models when fitness is a nonlinear function of a continuous phenotype requires this function to be differentiable. This assumption sometimes fails for biologically important fitness functions, for instance in microbial data and the theory of repeated n-person games, even...
2104.14189
Jan Kierfeld
Matthias Schmidt, Jan Kierfeld
Chemomechanical simulation of microtubule dynamics with explicit lateral bond dynamics
37 pages + 14 figures + supplementary material
Front. Phys. 9:673875 (2021)
10.3389/fphy.2021.673875
null
q-bio.SC q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce and parameterize a chemomechanical model of microtubule dynamics on the dimer level, which is based on the allosteric tubulin model and includes attachment, detachment and hydrolysis of tubulin dimers as well as stretching of lateral bonds, bending at longitudinal junctions, and the possibility of latera...
[ { "created": "Thu, 29 Apr 2021 08:17:45 GMT", "version": "v1" } ]
2021-08-31
[ [ "Schmidt", "Matthias", "" ], [ "Kierfeld", "Jan", "" ] ]
We introduce and parameterize a chemomechanical model of microtubule dynamics on the dimer level, which is based on the allosteric tubulin model and includes attachment, detachment and hydrolysis of tubulin dimers as well as stretching of lateral bonds, bending at longitudinal junctions, and the possibility of lateral ...
2008.08814
Hessameddin Akhlaghpour
Hessameddin Akhlaghpour
An RNA-Based Theory of Natural Universal Computation
66 pages total (25 pages main text excluding reference section), 7 figures, appendices in the same document
Journal of Theoretical Biology Volume 537, 21 March 2022, 110984
10.1016/j.jtbi.2021.110984
null
q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Life is confronted with computation problems in a variety of domains including animal behavior, single-cell behavior, and embryonic development. Yet we currently do not know of a naturally existing biological system that is capable of universal computation, i.e., Turing-equivalent in scope. Generic finite-dimensional...
[ { "created": "Thu, 20 Aug 2020 07:38:13 GMT", "version": "v1" }, { "created": "Tue, 6 Oct 2020 18:19:35 GMT", "version": "v2" }, { "created": "Tue, 24 Aug 2021 00:12:18 GMT", "version": "v3" }, { "created": "Sun, 12 Dec 2021 18:31:35 GMT", "version": "v4" } ]
2022-03-10
[ [ "Akhlaghpour", "Hessameddin", "" ] ]
Life is confronted with computation problems in a variety of domains including animal behavior, single-cell behavior, and embryonic development. Yet we currently do not know of a naturally existing biological system that is capable of universal computation, i.e., Turing-equivalent in scope. Generic finite-dimensional d...
1501.07448
Igor Goychuk
Igor Goychuk and Andriy Goychuk
Stochastic Wilson-Cowan models of neuronal network dynamics with memory and delay
null
New Journal of Physics, vol. 17, 045029 (2015)
10.1088/1367-2630/17/4/045029
null
q-bio.NC cond-mat.dis-nn physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a simple Markovian class of the stochastic Wilson-Cowan type models of neuronal network dynamics, which incorporates stochastic delay caused by the existence of a refractory period of neurons. From the point of view of the dynamics of the individual elements, we are dealing with a network of non-Markovian...
[ { "created": "Thu, 29 Jan 2015 13:26:14 GMT", "version": "v1" } ]
2015-05-01
[ [ "Goychuk", "Igor", "" ], [ "Goychuk", "Andriy", "" ] ]
We consider a simple Markovian class of the stochastic Wilson-Cowan type models of neuronal network dynamics, which incorporates stochastic delay caused by the existence of a refractory period of neurons. From the point of view of the dynamics of the individual elements, we are dealing with a network of non-Markovian s...
2103.12481
Mar\'ia Vallet-Regi
C. Heras, J. Jimenez Holguin, A. L. Doadrio, M. Vallet-Regi, S. Sanchez-Salcedo, A. J. Salinas
Multifunctional antibiotic- and zinc-containing mesoporous bioactive glass scaffolds to fight bone infection
27 pages, 11 figures
Acta Biomaterialia 114, 395-406 (2020)
10.1016/j.actbio.2020.07.044
null
q-bio.QM
http://creativecommons.org/licenses/by-nc-nd/4.0/
Bone regeneration is a clinical challenge that requires multiple approaches. Sometimes, it also includes the development of new osteogenic and antibacterial biomaterials to treat the occurrence of possible infection processes derived from surgery. This study evaluates the antibacterial properties of meso-macroporous ...
[ { "created": "Tue, 23 Mar 2021 12:12:15 GMT", "version": "v1" } ]
2021-03-24
[ [ "Heras", "C.", "" ], [ "Holguin", "J. Jimenez", "" ], [ "Doadrio", "A. L.", "" ], [ "Vallet-Regi", "M.", "" ], [ "Sanchez-Salcedo", "S.", "" ], [ "Salinas", "A. J.", "" ] ]
Bone regeneration is a clinical challenge that requires multiple approaches. Sometimes, it also includes the development of new osteogenic and antibacterial biomaterials to treat the occurrence of possible infection processes derived from surgery. This study evaluates the antibacterial properties of meso-macroporous sc...
1711.05141
Andrei Olypher
Andrei Olifer
Generating behavioral acts of predetermined apparent complexity
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Behavior of natural and artificial agents consists of behavioral episodes or acts. This study introduces a quantitative measure of behavioral acts -- their apparent complexity. The measure is based on the concept of the Kolmogorov complexity. It is an apparent measure because it is determined solely by the readings o...
[ { "created": "Tue, 14 Nov 2017 15:29:52 GMT", "version": "v1" } ]
2017-11-15
[ [ "Olifer", "Andrei", "" ] ]
Behavior of natural and artificial agents consists of behavioral episodes or acts. This study introduces a quantitative measure of behavioral acts -- their apparent complexity. The measure is based on the concept of the Kolmogorov complexity. It is an apparent measure because it is determined solely by the readings of ...
1709.06489
Louis Lello
Louis Lello, Steven G. Avery, Laurent Tellier, Ana Vazquez, Gustavo de los Campos, Stephen D.H. Hsu
Accurate Genomic Prediction Of Human Height
17 pages, 10 figures
null
null
null
q-bio.GN cs.LG q-bio.QM stat.ML
http://creativecommons.org/licenses/by-nc-sa/4.0/
We construct genomic predictors for heritable and extremely complex human quantitative traits (height, heel bone density, and educational attainment) using modern methods in high dimensional statistics (i.e., machine learning). Replication tests show that these predictors capture, respectively, $\sim$40, 20, and 9 pe...
[ { "created": "Tue, 19 Sep 2017 15:32:37 GMT", "version": "v1" } ]
2017-09-20
[ [ "Lello", "Louis", "" ], [ "Avery", "Steven G.", "" ], [ "Tellier", "Laurent", "" ], [ "Vazquez", "Ana", "" ], [ "Campos", "Gustavo de los", "" ], [ "Hsu", "Stephen D. H.", "" ] ]
We construct genomic predictors for heritable and extremely complex human quantitative traits (height, heel bone density, and educational attainment) using modern methods in high dimensional statistics (i.e., machine learning). Replication tests show that these predictors capture, respectively, $\sim$40, 20, and 9 perc...
2106.13565
Tancredi Caruso
Tancredi Caruso, Giulio Virginio Clemente, Matthias C Rillig, Diego Garlaschelli
Fluctuating ecological networks: a synthesis of maximum-entropy approaches for pattern detection and process inference
submitted
Methods in Ecology and Evolution, 00, 1-12 (2022)
10.1111/2041-210X.13985
null
q-bio.QM cond-mat.dis-nn physics.data-an
http://creativecommons.org/licenses/by/4.0/
Ecological networks such as plant-pollinator systems and food webs vary in space and time. This variability includes fluctuations in global network properties such as total number and intensity of interactions but also in the local properties of individual nodes such as the number and intensity of species-level inter...
[ { "created": "Fri, 25 Jun 2021 11:23:59 GMT", "version": "v1" }, { "created": "Fri, 11 Mar 2022 09:03:31 GMT", "version": "v2" } ]
2022-12-23
[ [ "Caruso", "Tancredi", "" ], [ "Clemente", "Giulio Virginio", "" ], [ "Rillig", "Matthias C", "" ], [ "Garlaschelli", "Diego", "" ] ]
Ecological networks such as plant-pollinator systems and food webs vary in space and time. This variability includes fluctuations in global network properties such as total number and intensity of interactions but also in the local properties of individual nodes such as the number and intensity of species-level interac...
1706.05702
Jeyashree Krishnan
Jeyashree Krishnan, PierGianLuca Porta Mana, Moritz Helias, Markus Diesmann, Edoardo Di Napoli
Perfect spike detection via time reversal
9 figures, Preliminary results in proceedings of the Bernstein Conference 2016
null
10.3389/fninf.2017.00075
null
q-bio.NC math.DG physics.bio-ph q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Spiking neuronal networks are usually simulated with three main simulation schemes: the classical time-driven and event-driven schemes, and the more recent hybrid scheme. All three schemes evolve the state of a neuron through a series of checkpoints: equally spaced in the first scheme and determined neuron-wise by sp...
[ { "created": "Sun, 18 Jun 2017 19:13:26 GMT", "version": "v1" } ]
2018-01-24
[ [ "Krishnan", "Jeyashree", "" ], [ "Mana", "PierGianLuca Porta", "" ], [ "Helias", "Moritz", "" ], [ "Diesmann", "Markus", "" ], [ "Di Napoli", "Edoardo", "" ] ]
Spiking neuronal networks are usually simulated with three main simulation schemes: the classical time-driven and event-driven schemes, and the more recent hybrid scheme. All three schemes evolve the state of a neuron through a series of checkpoints: equally spaced in the first scheme and determined neuron-wise by spik...
1512.06305
Anca Radulescu
Anca Radulescu, Joanna Herron
Ebola impact and quarantine in a network model
16 pages, 8 figures
null
null
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Much effort has been directed towards using mathematical models to understand and predict contagious disease, in particular Ebola outbreaks. Classical SIR (susceptible-infected-recovered) compartmental models capture well the dynamics of the outbreak in certain communities, and accurately describe the differences bet...
[ { "created": "Sun, 20 Dec 2015 01:53:36 GMT", "version": "v1" } ]
2015-12-22
[ [ "Radulescu", "Anca", "" ], [ "Herron", "Joanna", "" ] ]
Much effort has been directed towards using mathematical models to understand and predict contagious disease, in particular Ebola outbreaks. Classical SIR (susceptible-infected-recovered) compartmental models capture well the dynamics of the outbreak in certain communities, and accurately describe the differences betwe...
1510.07371
Lior Pachter
Lorian Schaeffer, Harold Pimentel, Nicolas Bray, P\'all Melsted and Lior Pachter
Pseudoalignment for metagenomic read assignment
Replaced accidentally duplicated figure with correct version; fixed some issues with figure generation and labeling; fixed problem with some missing genomes from database; added link to GitHub repo containing analysis code; included assessment of aggregate sensitivity and precision; clarified assessment metrics...
null
null
null
q-bio.QM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore connections between metagenomic read assignment and the quantification of transcripts from RNA-Seq data. In particular, we show that the recent idea of pseudoalignment introduced in the RNA-Seq context is suitable in the metagenomics setting. When coupled with the Expectation-Maximization (EM) algorithm, r...
[ { "created": "Mon, 26 Oct 2015 05:58:58 GMT", "version": "v1" }, { "created": "Tue, 1 Dec 2015 14:14:44 GMT", "version": "v2" } ]
2015-12-02
[ [ "Schaeffer", "Lorian", "" ], [ "Pimentel", "Harold", "" ], [ "Bray", "Nicolas", "" ], [ "Melsted", "Páll", "" ], [ "Pachter", "Lior", "" ] ]
We explore connections between metagenomic read assignment and the quantification of transcripts from RNA-Seq data. In particular, we show that the recent idea of pseudoalignment introduced in the RNA-Seq context is suitable in the metagenomics setting. When coupled with the Expectation-Maximization (EM) algorithm, rea...
1712.05372
Fr\'ed\'erique Robin
Fr\'ed\'erique Cl\'ement, Fr\'ed\'erique Robin and Romain Yvinec
Analysis and calibration of a linear model for structured cell populations with unidirectional motion : Application to the morphogenesis of ovarian follicles
null
null
null
null
q-bio.PE math.AP math.PR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze a multi-type age dependent model for cell populations subject to unidirectional motion, in both a stochastic and deterministic framework. Cells are distributed into successive layers; they may divide and move irreversibly from one layer to the next. We adapt results on the large-time convergence of PDE sys...
[ { "created": "Thu, 14 Dec 2017 18:06:44 GMT", "version": "v1" } ]
2017-12-15
[ [ "Clément", "Frédérique", "" ], [ "Robin", "Frédérique", "" ], [ "Yvinec", "Romain", "" ] ]
We analyze a multi-type age dependent model for cell populations subject to unidirectional motion, in both a stochastic and deterministic framework. Cells are distributed into successive layers; they may divide and move irreversibly from one layer to the next. We adapt results on the large-time convergence of PDE syste...
q-bio/0310001
Rodrick Wallace
Rodrick Wallace
Comorbidity and Anticomorbidity: Autocognitive developmental disorders of structured psychosocial stress
18 pages, 2 figures
null
null
null
q-bio.NC q-bio.TO
null
We examine interacting cognitive modules of human biology which, in the asymptotic limit of long sequences of responses, define the output of an appropriate 'dual' information source. Applying a 'necessary condition' communication theory formalism roughly similar to that of Dretske, but focused entirely on long seque...
[ { "created": "Wed, 1 Oct 2003 17:11:11 GMT", "version": "v1" }, { "created": "Thu, 23 Oct 2003 16:58:40 GMT", "version": "v2" }, { "created": "Fri, 12 Dec 2003 16:15:20 GMT", "version": "v3" } ]
2007-05-23
[ [ "Wallace", "Rodrick", "" ] ]
We examine interacting cognitive modules of human biology which, in the asymptotic limit of long sequences of responses, define the output of an appropriate 'dual' information source. Applying a 'necessary condition' communication theory formalism roughly similar to that of Dretske, but focused entirely on long sequenc...
0804.0696
Heng Lian
Heng Lian
Inference of genetic networks from time course expression data using functional regression with lasso penalty
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Statistical inference of genetic regulatory networks is essential for understanding temporal interactions of regulatory elements inside the cells. For inferences of large networks, identification of network structure is typical achieved under the assumption of sparsity of the networks. When the number of time point...
[ { "created": "Fri, 4 Apr 2008 11:11:01 GMT", "version": "v1" }, { "created": "Sat, 5 Apr 2008 06:59:27 GMT", "version": "v2" } ]
2008-04-07
[ [ "Lian", "Heng", "" ] ]
Statistical inference of genetic regulatory networks is essential for understanding temporal interactions of regulatory elements inside the cells. For inferences of large networks, identification of network structure is typical achieved under the assumption of sparsity of the networks. When the number of time points in...
2206.12747
Khaled Mohammed Saifuddin
Khaled Mohammed Saifuddin, Briana Bumgardner, Farhan Tanvir, Esra Akbas
HyGNN: Drug-Drug Interaction Prediction via Hypergraph Neural Network
Some new experiments have been added. One more dataset has been considered. Theoretical part has been updated too
null
null
null
q-bio.QM cs.AI cs.LG
http://creativecommons.org/licenses/by/4.0/
Drug-Drug Interactions (DDIs) may hamper the functionalities of drugs, and in the worst scenario, they may lead to adverse drug reactions (ADRs). Predicting all DDIs is a challenging and critical problem. Most existing computational models integrate drug-centric information from different sources and leverage them as...
[ { "created": "Sat, 25 Jun 2022 22:48:27 GMT", "version": "v1" }, { "created": "Thu, 14 Jul 2022 06:31:25 GMT", "version": "v2" }, { "created": "Fri, 15 Jul 2022 10:14:45 GMT", "version": "v3" }, { "created": "Tue, 18 Apr 2023 09:57:00 GMT", "version": "v4" } ]
2023-04-19
[ [ "Saifuddin", "Khaled Mohammed", "" ], [ "Bumgardner", "Briana", "" ], [ "Tanvir", "Farhan", "" ], [ "Akbas", "Esra", "" ] ]
Drug-Drug Interactions (DDIs) may hamper the functionalities of drugs, and in the worst scenario, they may lead to adverse drug reactions (ADRs). Predicting all DDIs is a challenging and critical problem. Most existing computational models integrate drug-centric information from different sources and leverage them as f...
2202.07751
Gabriel Ocker
Gabriel Koch Ocker
Dynamics of stochastic integrate-and-fire networks
A previous version of this article, now retracted (https://journals.aps.org/prx/abstract/10.1103/ PhysRevX.12.041007), contained errors described in the retraction notice (https://journals.aps.org/prx/ abstract/10.1103/PhysRevX.13.029904). These errors have been corrected in the current article, which was re-re...
null
null
null
q-bio.NC cond-mat.dis-nn
http://creativecommons.org/licenses/by/4.0/
The neural dynamics generating sensory, motor, and cognitive functions are commonly understood through field theories for neural population activity. Classic neural field theories are derived from highly simplified models of individual neurons, while biological neurons are highly complex cells. Integrate-and-fire neu...
[ { "created": "Tue, 15 Feb 2022 22:05:07 GMT", "version": "v1" }, { "created": "Wed, 20 Jul 2022 18:49:50 GMT", "version": "v2" }, { "created": "Fri, 29 Jul 2022 16:39:27 GMT", "version": "v3" }, { "created": "Thu, 16 Feb 2023 19:00:39 GMT", "version": "v4" }, { "c...
2023-11-21
[ [ "Ocker", "Gabriel Koch", "" ] ]
The neural dynamics generating sensory, motor, and cognitive functions are commonly understood through field theories for neural population activity. Classic neural field theories are derived from highly simplified models of individual neurons, while biological neurons are highly complex cells. Integrate-and-fire neuro...
1911.01202
Michael Plank
Michael J Plank
Asymptotic expansion approximation for spatial structure arising from directionally biased movement
null
Physica A: Statistical Mechanics and its Applications (2019)
10.1016/j.physa.2019.123290
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Spatial structure can arise in spatial point process models via a range of mechanisms, including neighbour-dependent directionally biased movement. This spatial structure is neglected by mean-field models, but can have important effects on population dynamics. Spatial moment dynamics are one way to obtain a determini...
[ { "created": "Tue, 22 Oct 2019 03:07:58 GMT", "version": "v1" }, { "created": "Tue, 5 Nov 2019 01:54:51 GMT", "version": "v2" } ]
2019-11-06
[ [ "Plank", "Michael J", "" ] ]
Spatial structure can arise in spatial point process models via a range of mechanisms, including neighbour-dependent directionally biased movement. This spatial structure is neglected by mean-field models, but can have important effects on population dynamics. Spatial moment dynamics are one way to obtain a determinist...
1903.06375
Seong Jun Park
Seong Jun Park
Exploiting product molecule number to consider reaction rate fluctuation in elementary reactions
null
null
10.1063/5.0091597
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In many chemical reactions, reaction rate fluctuation is inevitable. Reaction rates are different whenever chemical reaction occurs due to their dependence on the number of reaction events or the product number. As such, understanding the impact of rate fluctuation on product number counting statistics is of the utmo...
[ { "created": "Fri, 15 Mar 2019 05:53:42 GMT", "version": "v1" }, { "created": "Mon, 18 Mar 2019 09:48:40 GMT", "version": "v2" } ]
2024-06-19
[ [ "Park", "Seong Jun", "" ] ]
In many chemical reactions, reaction rate fluctuation is inevitable. Reaction rates are different whenever chemical reaction occurs due to their dependence on the number of reaction events or the product number. As such, understanding the impact of rate fluctuation on product number counting statistics is of the utmost...
2402.00077
Yuan Chen
Yuan Chen, Ronglai Shen, Xiwen Feng, Katherine Panageas
Unlocking the Power of Multi-institutional Data: Integrating and Harmonizing Genomic Data Across Institutions
null
null
null
null
q-bio.GN cs.LG stat.ME
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cancer is a complex disease driven by genomic alterations, and tumor sequencing is becoming a mainstay of clinical care for cancer patients. The emergence of multi-institution sequencing data presents a powerful resource for learning real-world evidence to enhance precision oncology. GENIE BPC, led by the American As...
[ { "created": "Tue, 30 Jan 2024 23:25:05 GMT", "version": "v1" } ]
2024-02-02
[ [ "Chen", "Yuan", "" ], [ "Shen", "Ronglai", "" ], [ "Feng", "Xiwen", "" ], [ "Panageas", "Katherine", "" ] ]
Cancer is a complex disease driven by genomic alterations, and tumor sequencing is becoming a mainstay of clinical care for cancer patients. The emergence of multi-institution sequencing data presents a powerful resource for learning real-world evidence to enhance precision oncology. GENIE BPC, led by the American Asso...
q-bio/0607012
Michael Deem
Jeong-Man Park and Michael W. Deem
Schwinger Boson Formulation and Solution of the Crow-Kimura and Eigen Models of Quasispecies Theory
37 pages; 4 figures; to appear in J. Stat. Phys
null
10.1007/s10955-006-9190-z
null
q-bio.PE cond-mat.stat-mech
null
We express the Crow-Kimura and Eigen models of quasispecies theory in a functional integral representation. We formulate the spin coherent state functional integrals using the Schwinger Boson method. In this formulation, we are able to deduce the long-time behavior of these models for arbitrary replication and degrad...
[ { "created": "Mon, 10 Jul 2006 00:16:41 GMT", "version": "v1" } ]
2009-11-13
[ [ "Park", "Jeong-Man", "" ], [ "Deem", "Michael W.", "" ] ]
We express the Crow-Kimura and Eigen models of quasispecies theory in a functional integral representation. We formulate the spin coherent state functional integrals using the Schwinger Boson method. In this formulation, we are able to deduce the long-time behavior of these models for arbitrary replication and degradat...
0801.3963
Ines Samengo
Germ\'an Mato and In\'es Samengo
Type I and type II neuron models are selectively driven by differential stimulus features
25 pages and 9 figures. To appear in Neural Computation
null
null
null
q-bio.NC
null
Neurons in the nervous system exhibit an outstanding variety of morphological and physiological properties. However, close to threshold, this remarkable richness may be grouped succinctly into two basic types of excitability, often referred to as type I and type II. The dynamical traits of these two neuron types have...
[ { "created": "Fri, 25 Jan 2008 15:58:52 GMT", "version": "v1" } ]
2008-01-28
[ [ "Mato", "Germán", "" ], [ "Samengo", "Inés", "" ] ]
Neurons in the nervous system exhibit an outstanding variety of morphological and physiological properties. However, close to threshold, this remarkable richness may be grouped succinctly into two basic types of excitability, often referred to as type I and type II. The dynamical traits of these two neuron types have b...
1312.3445
Namiko Mitarai
Filippo Botta and Namiko Mitarai
Disturbance accelerates the transition from low- to high- diversity state in a model ecosystem
8 pages, 8 figures. Typos corrected
Phys. Rev. E vol 89, 022704 (2014)
10.1103/PhysRevE.89.022704
null
q-bio.PE cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effect of disturbance on a model ecosystem of sessile and mutually competitive species [Mathiesen et al. Phys. Rev. Lett. 107, 188101 (2011); Mitarai et al. Phys. Rev. E 86, 011929 (2012) ] is studied. The disturbance stochastically removes individuals from the system, and the created empty sites are re-colonized...
[ { "created": "Thu, 12 Dec 2013 11:12:45 GMT", "version": "v1" }, { "created": "Mon, 17 Feb 2014 15:13:34 GMT", "version": "v2" } ]
2015-06-18
[ [ "Botta", "Filippo", "" ], [ "Mitarai", "Namiko", "" ] ]
The effect of disturbance on a model ecosystem of sessile and mutually competitive species [Mathiesen et al. Phys. Rev. Lett. 107, 188101 (2011); Mitarai et al. Phys. Rev. E 86, 011929 (2012) ] is studied. The disturbance stochastically removes individuals from the system, and the created empty sites are re-colonized b...
1610.07406
Seung Ki Baek
Su Do Yi, Seung Ki Baek, and Jung-Kyoo Choi
Combination with anti-tit-for-tat remedies problems of tit-for-tat
21 pages, 3 figures
J. Theor. Biol. 412, 1 (2017)
10.1016/j.jtbi.2016.09.017
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most important questions in game theory concerns how mutual cooperation can be achieved and maintained in a social dilemma. In Axelrod's tournaments of the iterated prisoner's dilemma, Tit-for-Tat (TFT) demonstrated the role of reciprocity in the emergence of cooperation. However, the stability of TFT does...
[ { "created": "Mon, 24 Oct 2016 13:39:44 GMT", "version": "v1" } ]
2016-10-25
[ [ "Yi", "Su Do", "" ], [ "Baek", "Seung Ki", "" ], [ "Choi", "Jung-Kyoo", "" ] ]
One of the most important questions in game theory concerns how mutual cooperation can be achieved and maintained in a social dilemma. In Axelrod's tournaments of the iterated prisoner's dilemma, Tit-for-Tat (TFT) demonstrated the role of reciprocity in the emergence of cooperation. However, the stability of TFT does n...
1409.1801
Stephen Plaza
Stephen M. Plaza, Toufiq Parag, Gary B. Huang, Donald J. Olbris, Mathew A. Saunders, Patricia K. Rivlin
Annotating Synapses in Large EM Datasets
null
null
null
null
q-bio.QM cs.CV q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Reconstructing neuronal circuits at the level of synapses is a central problem in neuroscience and becoming a focus of the emerging field of connectomics. To date, electron microscopy (EM) is the most proven technique for identifying and quantifying synaptic connections. As advances in EM make acquiring larger datase...
[ { "created": "Fri, 5 Sep 2014 13:52:47 GMT", "version": "v1" }, { "created": "Thu, 4 Dec 2014 16:18:01 GMT", "version": "v2" } ]
2014-12-05
[ [ "Plaza", "Stephen M.", "" ], [ "Parag", "Toufiq", "" ], [ "Huang", "Gary B.", "" ], [ "Olbris", "Donald J.", "" ], [ "Saunders", "Mathew A.", "" ], [ "Rivlin", "Patricia K.", "" ] ]
Reconstructing neuronal circuits at the level of synapses is a central problem in neuroscience and becoming a focus of the emerging field of connectomics. To date, electron microscopy (EM) is the most proven technique for identifying and quantifying synaptic connections. As advances in EM make acquiring larger datasets...
q-bio/0511028
Guillermo Abramson
G. Abramson, L. Giuggioli, V. M. Kenkre, J. W. Dragoo, R. R. Parmenter, C. A. Parmenter, T. L. Yates
Diffusion and Home Range Parameters for Rodents: Peromyscus maniculatus in New Mexico
The published paper in Ecol. Complexity has an old version of Figure 6. Here we have put the correct version of Figure 6
Ecological Complexity 3 (2006) 64-70
10.1016/j.ecocom.2005.07.001
null
q-bio.PE
null
We analyze data from a long term field project in New Mexico, consisting of repeated sessions of mark-recaptures of Peromyscus maniculatus (Rodentia: Muridae), the host and reservoir of Sin Nombre Virus (Bunyaviridae: Hantavirus). The displacements of the recaptured animals provide a means to study their movement fro...
[ { "created": "Wed, 16 Nov 2005 12:28:38 GMT", "version": "v1" }, { "created": "Thu, 9 Mar 2006 17:47:13 GMT", "version": "v2" } ]
2007-05-23
[ [ "Abramson", "G.", "" ], [ "Giuggioli", "L.", "" ], [ "Kenkre", "V. M.", "" ], [ "Dragoo", "J. W.", "" ], [ "Parmenter", "R. R.", "" ], [ "Parmenter", "C. A.", "" ], [ "Yates", "T. L.", "" ] ]
We analyze data from a long term field project in New Mexico, consisting of repeated sessions of mark-recaptures of Peromyscus maniculatus (Rodentia: Muridae), the host and reservoir of Sin Nombre Virus (Bunyaviridae: Hantavirus). The displacements of the recaptured animals provide a means to study their movement from ...
q-bio/0312042
Anders Irb\"ack
Anders Irb\"ack, Fredrik Sjunnesson
Folding thermodynamics of three beta-sheet peptides: A model study
17 pages, 7 figures, to appear in Proteins
Proteins 56 (2004) 110-116
null
LU TP 03-40
q-bio.BM cond-mat.soft
null
We study the folding thermodynamics of a beta-hairpin and two three-stranded beta-sheet peptides using a simplified sequence-based all-atom model, in which folding is driven mainly by backbone hydrogen bonding and effective hydrophobic attraction. The native populations obtained for these three sequences are in good ...
[ { "created": "Tue, 30 Dec 2003 20:54:37 GMT", "version": "v1" } ]
2007-05-23
[ [ "Irbäck", "Anders", "" ], [ "Sjunnesson", "Fredrik", "" ] ]
We study the folding thermodynamics of a beta-hairpin and two three-stranded beta-sheet peptides using a simplified sequence-based all-atom model, in which folding is driven mainly by backbone hydrogen bonding and effective hydrophobic attraction. The native populations obtained for these three sequences are in good ag...
2009.06577
Guilherme Innocentini
Guilherme C.P. Innocentini and Arran Hodgkinson and Fernando Antoneli and Arnaud Debussche and Ovidiu Radulescu
Push-forward method for piecewise deterministic biochemical simulations
arXiv admin note: text overlap with arXiv:1905.00235
Theoretical Computer Science Volume 893, 21 November 2021, Pages 17-40
10.1016/j.tcs.2021.05.025
null
q-bio.QM q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A biochemical network can be simulated by a set of ordinary differential equations (ODE) under well stirred reactor conditions, for large numbers of molecules, and frequent reactions. This is no longer a robust representation when some molecular species are in small numbers and reactions changing them are infrequent....
[ { "created": "Mon, 14 Sep 2020 17:38:15 GMT", "version": "v1" }, { "created": "Fri, 12 Feb 2021 18:22:30 GMT", "version": "v2" } ]
2021-12-17
[ [ "Innocentini", "Guilherme C. P.", "" ], [ "Hodgkinson", "Arran", "" ], [ "Antoneli", "Fernando", "" ], [ "Debussche", "Arnaud", "" ], [ "Radulescu", "Ovidiu", "" ] ]
A biochemical network can be simulated by a set of ordinary differential equations (ODE) under well stirred reactor conditions, for large numbers of molecules, and frequent reactions. This is no longer a robust representation when some molecular species are in small numbers and reactions changing them are infrequent. I...
1412.7695
German Mi\~no Dr
Germ\'an A. Mi\~no-Galaz
Allosteric Communication Pathways and Thermal Rectification in PDZ-2 Protein: A Computational Study
29 pages, 8 Figures. All Results Unchanged. Changed Title. Improved Grammar. Added references. Corrected typos. Elimination of the "Knocking" argument for Asp5-Lys91 Interaction in Results and in Discussion sections
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Allosteric communication in proteins is a central and yet unsolved problem of structural biochemistry. Previous findings, from computational biology (Ota and Agard, 2005), have proposed that heat diffuses in a protein through cognate protein allosteric pathways. This work studied heat diffusion in the well-known PDZ-...
[ { "created": "Wed, 24 Dec 2014 15:51:08 GMT", "version": "v1" }, { "created": "Sat, 7 Mar 2015 08:34:58 GMT", "version": "v2" } ]
2015-03-10
[ [ "Miño-Galaz", "Germán A.", "" ] ]
Allosteric communication in proteins is a central and yet unsolved problem of structural biochemistry. Previous findings, from computational biology (Ota and Agard, 2005), have proposed that heat diffuses in a protein through cognate protein allosteric pathways. This work studied heat diffusion in the well-known PDZ-2 ...
1211.5730
Claus O. Wilke
Stephanie J. Spielman and Claus O. Wilke
Membrane environment imposes unique selection pressures on transmembrane domains of G protein-coupled receptors
19 pages, 4 figures, to appear in J. Mol. Evol
null
null
null
q-bio.GN q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have investigated the influence of the plasma membrane environment on the molecular evolution of G protein-coupled receptors (GPCRs), the largest receptor family in Metazoa. In particular, we have analyzed the site-specific rate variation across the two primary structural partitions, transmembrane (TM) and extrame...
[ { "created": "Sun, 25 Nov 2012 05:49:47 GMT", "version": "v1" }, { "created": "Thu, 27 Dec 2012 22:15:02 GMT", "version": "v2" } ]
2013-01-01
[ [ "Spielman", "Stephanie J.", "" ], [ "Wilke", "Claus O.", "" ] ]
We have investigated the influence of the plasma membrane environment on the molecular evolution of G protein-coupled receptors (GPCRs), the largest receptor family in Metazoa. In particular, we have analyzed the site-specific rate variation across the two primary structural partitions, transmembrane (TM) and extramemb...
2405.04248
Evie Malaia
Michelle McCleod, Sean Borneman, Evie Malaia
Neurocomputational Phenotypes in Female and Male Autistic Individuals
10 pages, 2 figures, 4 tables. Submitted to Journal of Science and Health, University of Alabama
null
null
null
q-bio.NC nlin.CD
http://creativecommons.org/licenses/by/4.0/
Autism Spectrum Disorder (ASD) is characterized by an altered phenotype in social interaction and communication. Additionally, autism typically manifests differently in females as opposed to males: a phenomenon that has likely led to long-term problems in diagnostics of autism in females. These sex-based differences ...
[ { "created": "Tue, 7 May 2024 12:06:12 GMT", "version": "v1" } ]
2024-05-08
[ [ "McCleod", "Michelle", "" ], [ "Borneman", "Sean", "" ], [ "Malaia", "Evie", "" ] ]
Autism Spectrum Disorder (ASD) is characterized by an altered phenotype in social interaction and communication. Additionally, autism typically manifests differently in females as opposed to males: a phenomenon that has likely led to long-term problems in diagnostics of autism in females. These sex-based differences in...
2007.06975
Francesco Di Lauro Mr
Francesco Di Lauro, Luc Berthouze, Matthew D. Dorey, Joel C. Miller, Istv\'an Z. Kiss
The impact of network properties and mixing on control measures and disease-induced herd immunity in epidemic models: a mean-field model perspective
25 pages, 9 figures, 1 Table
null
null
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The contact structure of a population plays an important role in transmission of infection. Many ``structured models'' capture aspects of the contact structure through an underlying network or a mixing matrix. An important observation in such models, is that once a fraction $1-1/\mathcal{R}_0$ has been infected, the ...
[ { "created": "Tue, 14 Jul 2020 11:26:31 GMT", "version": "v1" } ]
2020-07-15
[ [ "Di Lauro", "Francesco", "" ], [ "Berthouze", "Luc", "" ], [ "Dorey", "Matthew D.", "" ], [ "Miller", "Joel C.", "" ], [ "Kiss", "István Z.", "" ] ]
The contact structure of a population plays an important role in transmission of infection. Many ``structured models'' capture aspects of the contact structure through an underlying network or a mixing matrix. An important observation in such models, is that once a fraction $1-1/\mathcal{R}_0$ has been infected, the re...
1107.2879
Mariano Beguerisse D\'iaz
Mariano Beguerisse-Diaz, Baojun Wang, Radhika Desikan, Mauricio Barahona
Squeeze-and-Breathe Evolutionary Monte Carlo Optimisation with Local Search Acceleration and its application to parameter fitting
15 Pages, 3 Figures, 6 Tables; Availability: Matlab code available from the authors upon request
null
null
null
q-bio.QM cs.SY math.OC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: Estimating parameters from data is a key stage of the modelling process, particularly in biological systems where many parameters need to be estimated from sparse and noisy data sets. Over the years, a variety of heuristics have been proposed to solve this complex optimisation problem, with good results i...
[ { "created": "Thu, 14 Jul 2011 17:52:39 GMT", "version": "v1" }, { "created": "Sun, 23 Oct 2011 15:10:58 GMT", "version": "v2" }, { "created": "Fri, 4 Nov 2011 17:08:36 GMT", "version": "v3" } ]
2011-11-07
[ [ "Beguerisse-Diaz", "Mariano", "" ], [ "Wang", "Baojun", "" ], [ "Desikan", "Radhika", "" ], [ "Barahona", "Mauricio", "" ] ]
Motivation: Estimating parameters from data is a key stage of the modelling process, particularly in biological systems where many parameters need to be estimated from sparse and noisy data sets. Over the years, a variety of heuristics have been proposed to solve this complex optimisation problem, with good results in ...
2309.03194
James Malkin Mr
James Malkin, Cian O'Donnell, Conor Houghton, Laurence Aitchison
Signatures of Bayesian inference emerge from energy efficient synapses
29 pages, 11 figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Biological synaptic transmission is unreliable, and this unreliability likely degrades neural circuit performance. While there are biophysical mechanisms that can increase reliability, for instance by increasing vesicle release probability, these mechanisms cost energy. We examined four such mechanisms along with the...
[ { "created": "Wed, 6 Sep 2023 17:57:07 GMT", "version": "v1" }, { "created": "Sat, 23 Mar 2024 01:42:32 GMT", "version": "v2" }, { "created": "Fri, 21 Jun 2024 09:14:57 GMT", "version": "v3" }, { "created": "Mon, 1 Jul 2024 11:30:59 GMT", "version": "v4" } ]
2024-07-02
[ [ "Malkin", "James", "" ], [ "O'Donnell", "Cian", "" ], [ "Houghton", "Conor", "" ], [ "Aitchison", "Laurence", "" ] ]
Biological synaptic transmission is unreliable, and this unreliability likely degrades neural circuit performance. While there are biophysical mechanisms that can increase reliability, for instance by increasing vesicle release probability, these mechanisms cost energy. We examined four such mechanisms along with the a...
1705.07856
James O'Dwyer
James P. O'Dwyer and Stephen J. Cornell
Cross-scale ecological theory sheds light on the maintenance of biodiversity
31 pages 3 figures
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the first successes of neutral ecology was to predict realistically-broad distributions of rare and abundant species. However, it has remained an outstanding theoretical challenge to describe how this distribution of abundances changes with spatial scale, and this gap has hampered attempts to use observed spec...
[ { "created": "Mon, 22 May 2017 17:00:42 GMT", "version": "v1" }, { "created": "Wed, 7 Jun 2017 17:09:52 GMT", "version": "v2" }, { "created": "Mon, 16 Jul 2018 19:48:48 GMT", "version": "v3" } ]
2018-07-18
[ [ "O'Dwyer", "James P.", "" ], [ "Cornell", "Stephen J.", "" ] ]
One of the first successes of neutral ecology was to predict realistically-broad distributions of rare and abundant species. However, it has remained an outstanding theoretical challenge to describe how this distribution of abundances changes with spatial scale, and this gap has hampered attempts to use observed specie...
1604.02399
Matthew Tudor
Tracey Filzen, Peter Kutchukian, Jeffrey Hermes, Jing Li, Matthew Tudor
Representing high throughput expression profiles via perturbation barcodes reveals compound targets
19 pages, 3 figures, 2 tables, 2 supplementary figures
null
10.1371/journal.pcbi.1005335
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
High throughput mRNA expression profiling can be used to characterize the response of cell culture models to perturbations such as pharmacologic modulators and genetic perturbations. As profiling campaigns expand in scope, it is important to homogenize, summarize, and analyze the resulting data in a manner that captu...
[ { "created": "Fri, 8 Apr 2016 16:53:19 GMT", "version": "v1" } ]
2017-04-12
[ [ "Filzen", "Tracey", "" ], [ "Kutchukian", "Peter", "" ], [ "Hermes", "Jeffrey", "" ], [ "Li", "Jing", "" ], [ "Tudor", "Matthew", "" ] ]
High throughput mRNA expression profiling can be used to characterize the response of cell culture models to perturbations such as pharmacologic modulators and genetic perturbations. As profiling campaigns expand in scope, it is important to homogenize, summarize, and analyze the resulting data in a manner that capture...
2102.10994
Yurui Ming
Yurui Ming
Coherence of Working Memory Study Between Deep Neural Network and Neurophysiology
null
null
null
null
q-bio.NC cs.LG cs.NE eess.SP
http://creativecommons.org/licenses/by/4.0/
The auto feature extraction capability of deep neural networks (DNN) endows them the potentiality for analysing complicated electroencephalogram (EEG) data captured from brain functionality research. This work investigates the potential coherent correspondence between the region-of-interest (ROI) for DNN to explore, ...
[ { "created": "Sat, 6 Feb 2021 09:09:57 GMT", "version": "v1" } ]
2021-02-23
[ [ "Ming", "Yurui", "" ] ]
The auto feature extraction capability of deep neural networks (DNN) endows them the potentiality for analysing complicated electroencephalogram (EEG) data captured from brain functionality research. This work investigates the potential coherent correspondence between the region-of-interest (ROI) for DNN to explore, an...
1901.09975
Farouk Nathoo
Yunlong Nie, Eugene Opoku, Laila Yasmin, Yin Song, Jie Wang, Sidi Wu, Vanessa Scarapicchia, Jodie Gawryluk, Liangliang Wang, Jiguo Cao, Farouk S. Nathoo
Spectral Dynamic Causal Modelling of Resting-State fMRI: Relating Effective Brain Connectivity in the Default Mode Network to Genetics
null
null
null
null
q-bio.NC q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We conduct an imaging genetics study to explore how effective brain connectivity in the default mode network (DMN) may be related to genetics within the context of Alzheimer's disease and mild cognitive impairment. We develop an analysis of longitudinal resting-state functional magnetic resonance imaging (rs-fMRI) an...
[ { "created": "Mon, 28 Jan 2019 19:58:32 GMT", "version": "v1" }, { "created": "Wed, 30 Jan 2019 21:14:29 GMT", "version": "v2" }, { "created": "Sat, 4 May 2019 03:33:14 GMT", "version": "v3" }, { "created": "Wed, 8 May 2019 18:39:55 GMT", "version": "v4" }, { "cre...
2020-06-03
[ [ "Nie", "Yunlong", "" ], [ "Opoku", "Eugene", "" ], [ "Yasmin", "Laila", "" ], [ "Song", "Yin", "" ], [ "Wang", "Jie", "" ], [ "Wu", "Sidi", "" ], [ "Scarapicchia", "Vanessa", "" ], [ "Gawryluk", ...
We conduct an imaging genetics study to explore how effective brain connectivity in the default mode network (DMN) may be related to genetics within the context of Alzheimer's disease and mild cognitive impairment. We develop an analysis of longitudinal resting-state functional magnetic resonance imaging (rs-fMRI) and ...
2006.03915
Damian Knopoff
Nicola Bellomo, Richard Bingham, Mark A.J. Chaplain, Giovanni Dosi, Guido Forni, Damian A. Knopoff, John Lowengrub, Reidun Twarock and Maria Enrica Virgillito
A multi-scale model of virus pandemic: Heterogeneous interactive entities in a globally connected world
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper is devoted to the multidisciplinary modelling of a pandemic initiated by an aggressive virus, specifically the so-called \textit{SARS--CoV--2 Severe Acute Respiratory Syndrome, corona virus n.2}. The study is developed within a multiscale framework accounting for the interaction of different spatial scales...
[ { "created": "Sat, 6 Jun 2020 16:45:59 GMT", "version": "v1" } ]
2020-06-09
[ [ "Bellomo", "Nicola", "" ], [ "Bingham", "Richard", "" ], [ "Chaplain", "Mark A. J.", "" ], [ "Dosi", "Giovanni", "" ], [ "Forni", "Guido", "" ], [ "Knopoff", "Damian A.", "" ], [ "Lowengrub", "John", "" ]...
This paper is devoted to the multidisciplinary modelling of a pandemic initiated by an aggressive virus, specifically the so-called \textit{SARS--CoV--2 Severe Acute Respiratory Syndrome, corona virus n.2}. The study is developed within a multiscale framework accounting for the interaction of different spatial scales, ...
1905.05030
Daniele Proverbio
Daniele Proverbio and Marco Maggiora
Dynamical strategies for obstacle avoidance during Dictyostelium discoideum aggregation: a Multi-agent system model
null
null
null
null
q-bio.CB nlin.AO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chemotaxis, the movement of an organism in response to chemical stimuli, is a typical feature of many microbiological systems. In particular, the social amoeba \textit{Disctyostelium discoideum} is widely used as a model organism, but it is not still clear how it behaves in heterogeneous environments. A few models fo...
[ { "created": "Mon, 13 May 2019 13:35:27 GMT", "version": "v1" }, { "created": "Tue, 14 May 2019 07:03:58 GMT", "version": "v2" }, { "created": "Mon, 16 Dec 2019 08:37:49 GMT", "version": "v3" } ]
2019-12-17
[ [ "Proverbio", "Daniele", "" ], [ "Maggiora", "Marco", "" ] ]
Chemotaxis, the movement of an organism in response to chemical stimuli, is a typical feature of many microbiological systems. In particular, the social amoeba \textit{Disctyostelium discoideum} is widely used as a model organism, but it is not still clear how it behaves in heterogeneous environments. A few models focu...
2008.05612
Steph Owen MPhys
S. Owen
GPU accelerated enumeration and exploration of HP model genotype-phenotype maps for protein folding
25 pages, 20 figures
null
null
null
q-bio.BM physics.bio-ph q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Evolution can be broadly described in terms of mutations of the genotype and the subsequent selection of the phenotype. The full enumeration of a given genotype-phenotype (GP) map is therefore a powerful technique in examining evolutionary landscapes. However, because the number of genotypes typically grows exponenti...
[ { "created": "Sat, 1 Aug 2020 22:59:48 GMT", "version": "v1" }, { "created": "Fri, 27 Nov 2020 16:16:18 GMT", "version": "v2" } ]
2020-11-30
[ [ "Owen", "S.", "" ] ]
Evolution can be broadly described in terms of mutations of the genotype and the subsequent selection of the phenotype. The full enumeration of a given genotype-phenotype (GP) map is therefore a powerful technique in examining evolutionary landscapes. However, because the number of genotypes typically grows exponential...
1307.3329
Ryan Solava
Ryan W. Solava and Tijana Milenkovi\'c
Revealing missing parts of the interactome
16 pages, 3 figures
null
null
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein interaction networks (PINs) are often used to "learn" new biological function from their topology. Since current PINs are noisy, their computational de-noising via link prediction (LP) could improve the learning accuracy. LP uses the existing PIN topology to predict missing and spurious links. Many of existin...
[ { "created": "Fri, 12 Jul 2013 05:25:07 GMT", "version": "v1" } ]
2013-07-15
[ [ "Solava", "Ryan W.", "" ], [ "Milenković", "Tijana", "" ] ]
Protein interaction networks (PINs) are often used to "learn" new biological function from their topology. Since current PINs are noisy, their computational de-noising via link prediction (LP) could improve the learning accuracy. LP uses the existing PIN topology to predict missing and spurious links. Many of existing ...
1309.2382
Benjamin Torben-Nielsen
Willem A.M. Wybo, Klaus M. Stiefel, Benjamin Torben-Nielsen
The Green's function formalism as a bridge between single and multi-compartmental modeling
16 pages, 2 figures
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neurons are spatially extended structures that receive and process inputs on their dendrites. It is generally accepted that neuronal computations arise from the active integration of synaptic inputs along a dendrite between the input location and the location of spike generation in the axon initial segment. However, ...
[ { "created": "Tue, 10 Sep 2013 06:10:42 GMT", "version": "v1" } ]
2013-09-11
[ [ "Wybo", "Willem A. M.", "" ], [ "Stiefel", "Klaus M.", "" ], [ "Torben-Nielsen", "Benjamin", "" ] ]
Neurons are spatially extended structures that receive and process inputs on their dendrites. It is generally accepted that neuronal computations arise from the active integration of synaptic inputs along a dendrite between the input location and the location of spike generation in the axon initial segment. However, ma...
q-bio/0408027
Morten Kloster
Morten Kloster
Analysis of evolution through competitive selection
12 pages, 10 figures
null
10.1103/PhysRevLett.95.168701
null
q-bio.PE physics.bio-ph
null
Recent studies of in vitro evolution of DNA via protein binding indicate that the evolution behavior is qualitatively different in different parameter regimes. I here present a general theory that is valid for a wide range of parameters, and which reproduces and extends previous results. Specifically, the mean-field ...
[ { "created": "Mon, 30 Aug 2004 21:07:49 GMT", "version": "v1" } ]
2009-11-10
[ [ "Kloster", "Morten", "" ] ]
Recent studies of in vitro evolution of DNA via protein binding indicate that the evolution behavior is qualitatively different in different parameter regimes. I here present a general theory that is valid for a wide range of parameters, and which reproduces and extends previous results. Specifically, the mean-field th...
2006.05665
Benjamin Ambrosio
Benjamin Ambrosio, M.A. Aziz-Alaoui
On a coupled time-dependent SIR models fitting with New York and New-Jersey states COVID-19 data
null
null
10.20944/preprints202006.0068.v1
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This article describes a simple Susceptible Infected Recovered (SIR) model fitting with COVID-19 data for the month of march 2020 in New York (NY) state. The model is a classical SIR, but is non-autonomous; the rate of susceptible people becoming infected is adjusted over time in order to fit the available data. The ...
[ { "created": "Wed, 10 Jun 2020 05:45:44 GMT", "version": "v1" } ]
2020-06-11
[ [ "Ambrosio", "Benjamin", "" ], [ "Aziz-Alaoui", "M. A.", "" ] ]
This article describes a simple Susceptible Infected Recovered (SIR) model fitting with COVID-19 data for the month of march 2020 in New York (NY) state. The model is a classical SIR, but is non-autonomous; the rate of susceptible people becoming infected is adjusted over time in order to fit the available data. The de...
2206.04989
Gopikrishnan Chirappurathu Remesan
Gopikrishnan C. Remesan and Jennifer A Flegg and Helen M Byrne
Two-phase model of compressive stress induced on a surrounding hyperelastic medium by an expanding tumour
26 pages, 7 figures
null
null
null
q-bio.TO q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
\emph{In vitro} experiments in which tumour cells are seeded in a gelatinous medium, or hydrogel, show how mechanical interactions between tumour cells and the tissue in which they are embedded, together with local levels of an externally-supplied, diffusible nutrient (e.g., oxygen), affect the tumour's growth dynami...
[ { "created": "Fri, 10 Jun 2022 10:52:00 GMT", "version": "v1" } ]
2022-06-13
[ [ "Remesan", "Gopikrishnan C.", "" ], [ "Flegg", "Jennifer A", "" ], [ "Byrne", "Helen M", "" ] ]
\emph{In vitro} experiments in which tumour cells are seeded in a gelatinous medium, or hydrogel, show how mechanical interactions between tumour cells and the tissue in which they are embedded, together with local levels of an externally-supplied, diffusible nutrient (e.g., oxygen), affect the tumour's growth dynamics...
1206.0858
Jin Yang
Jin Yang and John E. Pearson
Origins of concentration dependence of waiting times for single-molecule fluorescence binding
11 pages, 4 figures; J. Chem. Phys., 137, 2012
null
10.1063/1.4729947
null
q-bio.QM physics.bio-ph q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Binary fluorescence time series obtained from single-molecule imaging experiments can be used to infer protein binding kinetics, in particular, association and dissociation rate constants from waiting time statistics of fluorescence intensity changes. In many cases, rate constants inferred from fluorescence time seri...
[ { "created": "Tue, 5 Jun 2012 09:40:15 GMT", "version": "v1" }, { "created": "Thu, 14 Jun 2012 13:46:16 GMT", "version": "v2" } ]
2012-06-15
[ [ "Yang", "Jin", "" ], [ "Pearson", "John E.", "" ] ]
Binary fluorescence time series obtained from single-molecule imaging experiments can be used to infer protein binding kinetics, in particular, association and dissociation rate constants from waiting time statistics of fluorescence intensity changes. In many cases, rate constants inferred from fluorescence time series...
1310.3185
Filipe Tostevin
Alexander Buchner, Filipe Tostevin, Florian Hinzpeter, Ulrich Gerland
Optimization of collective enzyme activity via spatial localization
12 pages, 9 figures + 5 pages supplementary material
J. Chem. Phys. 139, 135101 (2013)
10.1063/1.4823504
null
q-bio.SC q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spatial organization of enzymes often plays a crucial role in the functionality and efficiency of enzymatic pathways. To fully understand the design and operation of enzymatic pathways, it is therefore crucial to understand how the relative arrangement of enzymes affects pathway function. Here we investigate the ...
[ { "created": "Fri, 11 Oct 2013 16:15:30 GMT", "version": "v1" } ]
2015-06-17
[ [ "Buchner", "Alexander", "" ], [ "Tostevin", "Filipe", "" ], [ "Hinzpeter", "Florian", "" ], [ "Gerland", "Ulrich", "" ] ]
The spatial organization of enzymes often plays a crucial role in the functionality and efficiency of enzymatic pathways. To fully understand the design and operation of enzymatic pathways, it is therefore crucial to understand how the relative arrangement of enzymes affects pathway function. Here we investigate the ef...