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1405.0929
Thomas Hopf
Thomas A. Hopf, Charlotta P.I. Sch\"arfe, Jo\~ao P.G.L.M. Rodrigues, Anna G. Green, Chris Sander, Alexandre M.J.J. Bonvin, Debora S. Marks
Sequence co-evolution gives 3D contacts and structures of protein complexes
null
null
10.7554/eLife.03430
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein-protein interactions are fundamental to many biological processes. Experimental screens have identified tens of thousands of interactions and structural biology has provided detailed functional insight for select 3D protein complexes. An alternative rich source of information about protein interactions is the...
[ { "created": "Mon, 5 May 2014 15:30:27 GMT", "version": "v1" }, { "created": "Fri, 23 May 2014 20:49:25 GMT", "version": "v2" }, { "created": "Tue, 16 Sep 2014 15:10:32 GMT", "version": "v3" } ]
2016-08-11
[ [ "Hopf", "Thomas A.", "" ], [ "Schärfe", "Charlotta P. I.", "" ], [ "Rodrigues", "João P. G. L. M.", "" ], [ "Green", "Anna G.", "" ], [ "Sander", "Chris", "" ], [ "Bonvin", "Alexandre M. J. J.", "" ], [ "Marks", ...
Protein-protein interactions are fundamental to many biological processes. Experimental screens have identified tens of thousands of interactions and structural biology has provided detailed functional insight for select 3D protein complexes. An alternative rich source of information about protein interactions is the e...
1501.04874
Alexander K. Vidybida
A. K. Vidybida
Output stream of leaky integrate and fire neuron
11 pages, 1 Figure. Language is still Ukrainian. This is an extended version of the previous version. The proofs of statements are added as well as 1 Figure
Reports of the National Academy of Science of Ukraine, 2014, 12, pp. 18-23
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Probability density function of output interspike intervals is found in exact form for leaky integrate and fire neuron stimulated with Poisson stream. The diffusion approximation is not exploited.
[ { "created": "Tue, 20 Jan 2015 16:42:08 GMT", "version": "v1" }, { "created": "Wed, 15 Apr 2015 13:29:10 GMT", "version": "v2" }, { "created": "Tue, 29 Dec 2015 12:04:03 GMT", "version": "v3" } ]
2015-12-31
[ [ "Vidybida", "A. K.", "" ] ]
Probability density function of output interspike intervals is found in exact form for leaky integrate and fire neuron stimulated with Poisson stream. The diffusion approximation is not exploited.
1412.2447
David Krakauer
David Krakauer, Nils Bertschinger, Eckehard Olbrich, Nihat Ay, Jessica C. Flack
The Information Theory of Individuality
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider biological individuality in terms of information theoretic and graphical principles. Our purpose is to extract through an algorithmic decomposition system-environment boundaries supporting individuality. We infer or detect evolved individuals rather than assume that they exist. Given a set of consistent m...
[ { "created": "Mon, 8 Dec 2014 04:53:00 GMT", "version": "v1" } ]
2014-12-09
[ [ "Krakauer", "David", "" ], [ "Bertschinger", "Nils", "" ], [ "Olbrich", "Eckehard", "" ], [ "Ay", "Nihat", "" ], [ "Flack", "Jessica C.", "" ] ]
We consider biological individuality in terms of information theoretic and graphical principles. Our purpose is to extract through an algorithmic decomposition system-environment boundaries supporting individuality. We infer or detect evolved individuals rather than assume that they exist. Given a set of consistent mea...
1202.4378
Joachim Krug
Ivan G. Szendro, Martijn F. Schenk, Jasper Franke, Joachim Krug and J. Arjan G. M. de Visser
Quantitative analyses of empirical fitness landscapes
24 pages, 5 figures; to appear in Journal of Statistical Mechanics: Theory and Experiment
J. Stat. Mech. P01005 (2013)
10.1088/1742-5468/2013/01/P01005
null
q-bio.PE cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The concept of a fitness landscape is a powerful metaphor that offers insight into various aspects of evolutionary processes and guidance for the study of evolution. Until recently, empirical evidence on the ruggedness of these landscapes was lacking, but since it became feasible to construct all possible genotypes c...
[ { "created": "Mon, 20 Feb 2012 16:55:32 GMT", "version": "v1" }, { "created": "Wed, 17 Oct 2012 17:04:21 GMT", "version": "v2" } ]
2013-01-18
[ [ "Szendro", "Ivan G.", "" ], [ "Schenk", "Martijn F.", "" ], [ "Franke", "Jasper", "" ], [ "Krug", "Joachim", "" ], [ "de Visser", "J. Arjan G. M.", "" ] ]
The concept of a fitness landscape is a powerful metaphor that offers insight into various aspects of evolutionary processes and guidance for the study of evolution. Until recently, empirical evidence on the ruggedness of these landscapes was lacking, but since it became feasible to construct all possible genotypes con...
2002.03821
Thomas G\"otz
Thomas G\"otz
First attempts to model the dynamics of the Coronavirus outbreak 2020
8 pages, 7 gigures
null
null
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Since the end of 2019 an outbreak of a new strain of coronavirus, called 2019--nCoV, is reported from China and later other parts of the world. Since January 21, WHO reports daily data on confirmed cases and deaths from both China and other countries. In this work we present some discrete and continuous models to dis...
[ { "created": "Mon, 10 Feb 2020 14:48:04 GMT", "version": "v1" } ]
2020-02-11
[ [ "Götz", "Thomas", "" ] ]
Since the end of 2019 an outbreak of a new strain of coronavirus, called 2019--nCoV, is reported from China and later other parts of the world. Since January 21, WHO reports daily data on confirmed cases and deaths from both China and other countries. In this work we present some discrete and continuous models to discr...
1903.09542
Manuel Baltieri Mr
Manuel Baltieri and Christopher L. Buckley
Nonmodular architectures of cognitive systems based on active inference
Accepted at IJCNN 2019
null
10.1109/IJCNN.2019.8852048
null
q-bio.NC cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In psychology and neuroscience it is common to describe cognitive systems as input/output devices where perceptual and motor functions are implemented in a purely feedforward, open-loop fashion. On this view, perception and action are often seen as encapsulated modules with limited interaction between them. While emb...
[ { "created": "Fri, 22 Mar 2019 15:00:25 GMT", "version": "v1" } ]
2022-03-10
[ [ "Baltieri", "Manuel", "" ], [ "Buckley", "Christopher L.", "" ] ]
In psychology and neuroscience it is common to describe cognitive systems as input/output devices where perceptual and motor functions are implemented in a purely feedforward, open-loop fashion. On this view, perception and action are often seen as encapsulated modules with limited interaction between them. While embod...
1802.00023
Siby Abraham
Jyotshna Dongardivev, Siby Abraham
Reaching Optimized Parameter Set, Protein Secondary Structure Prediction Using Neural Network
22 pages, 9 figures, 28 tables
Neural Computing and Applications (2017)28,1947 to 1974
10.1007/s00521-015-2150-2 10.1007/s00521-015-2150-2 10.1007/s00521-015-2150-2
null
q-bio.BM q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an optimized parameter set for protein secondary structure prediction using three layer feed forward back propagation neural network. The methodology uses four parameters viz. encoding scheme, window size, number of neurons in the hidden layer and type of learning algorithm. The input layer of the network ...
[ { "created": "Wed, 31 Jan 2018 19:14:38 GMT", "version": "v1" } ]
2018-02-02
[ [ "Dongardivev", "Jyotshna", "" ], [ "Abraham", "Siby", "" ] ]
We propose an optimized parameter set for protein secondary structure prediction using three layer feed forward back propagation neural network. The methodology uses four parameters viz. encoding scheme, window size, number of neurons in the hidden layer and type of learning algorithm. The input layer of the network co...
2002.03173
Chengxin Zhang
Chengxin Zhang, Wei Zheng, Xiaoqiang Huang, Eric W. Bell, Xiaogen Zhou, Yang Zhang
Protein structure and sequence re-analysis of 2019-nCoV genome does not indicate snakes as its intermediate host or the unique similarity between its spike protein insertions and HIV-1
Structure models for 2019-nCoV proteins are available at https://zhanglab.ccmb.med.umich.edu/C-I-TASSER/2019-nCov/
J. Proteome Res. 2020, 19, 4, 1351-1360
10.1021/acs.jproteome.0c00129
null
q-bio.GN q-bio.BM
http://creativecommons.org/licenses/by/4.0/
As the infection of 2019-nCoV coronavirus is quickly developing into a global pneumonia epidemic, careful analysis of its transmission and cellular mechanisms is sorely needed. In this report, we re-analyzed the computational approaches and findings presented in two recent manuscripts by Ji et al. (https://doi.org/10...
[ { "created": "Sat, 8 Feb 2020 14:24:59 GMT", "version": "v1" } ]
2020-04-28
[ [ "Zhang", "Chengxin", "" ], [ "Zheng", "Wei", "" ], [ "Huang", "Xiaoqiang", "" ], [ "Bell", "Eric W.", "" ], [ "Zhou", "Xiaogen", "" ], [ "Zhang", "Yang", "" ] ]
As the infection of 2019-nCoV coronavirus is quickly developing into a global pneumonia epidemic, careful analysis of its transmission and cellular mechanisms is sorely needed. In this report, we re-analyzed the computational approaches and findings presented in two recent manuscripts by Ji et al. (https://doi.org/10.1...
2310.11247
Francoise Lecaignard
Francoise Lecaignard and Jeremie Mattout
Mismatch Negativity: time for deconstruction
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-sa/4.0/
Error signals are the cornerstone of predictive coding and are widely considered essential to sensory perception and beyond. The mismatch negativity (MMN) is arguably the most emblematic and most studied brain error signal. It is affected in many brain disorders. However, its precise algorithmic function and the unde...
[ { "created": "Tue, 17 Oct 2023 13:15:42 GMT", "version": "v1" }, { "created": "Mon, 15 Jan 2024 10:38:19 GMT", "version": "v2" }, { "created": "Tue, 6 Feb 2024 20:57:51 GMT", "version": "v3" } ]
2024-02-08
[ [ "Lecaignard", "Francoise", "" ], [ "Mattout", "Jeremie", "" ] ]
Error signals are the cornerstone of predictive coding and are widely considered essential to sensory perception and beyond. The mismatch negativity (MMN) is arguably the most emblematic and most studied brain error signal. It is affected in many brain disorders. However, its precise algorithmic function and the underl...
2303.11099
Thomas Wahl
Thomas Wahl, Michel Duprez, Axel Hutt
Closed-loop neurostimulation in real-time for the treatment of pathological brain rhythms
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Mental disorders may exhibit pathological brain rhythms and neurostimulation promises to alleviate of patients' symptoms by modifying these rhythms. Today, most neurostimulation schemes are open-loop, i.e. administer experimental stimulation protocols independent of the patients brain activity which may yield a sub-o...
[ { "created": "Mon, 20 Mar 2023 13:34:22 GMT", "version": "v1" } ]
2023-03-21
[ [ "Wahl", "Thomas", "" ], [ "Duprez", "Michel", "" ], [ "Hutt", "Axel", "" ] ]
Mental disorders may exhibit pathological brain rhythms and neurostimulation promises to alleviate of patients' symptoms by modifying these rhythms. Today, most neurostimulation schemes are open-loop, i.e. administer experimental stimulation protocols independent of the patients brain activity which may yield a sub-opt...
2002.07716
Bartosz Jura
Bartosz Jura
Synaptic clock as a neural substrate of consciousness
16 pages, 4 figures; added references, extended discussion of the time consciousness literature
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this theoretical work the temporal aspect of consciousness is analyzed. We start from the notion that while conscious experience seems to change constantly, yet for any of its contents to be consciously perceived they must last for some non-zero duration of time, which appears to constitute certain conflict. We po...
[ { "created": "Tue, 18 Feb 2020 16:43:58 GMT", "version": "v1" }, { "created": "Sat, 5 Mar 2022 21:16:46 GMT", "version": "v2" } ]
2022-03-08
[ [ "Jura", "Bartosz", "" ] ]
In this theoretical work the temporal aspect of consciousness is analyzed. We start from the notion that while conscious experience seems to change constantly, yet for any of its contents to be consciously perceived they must last for some non-zero duration of time, which appears to constitute certain conflict. We posi...
1904.01637
Safoora Yousefi
Safoora Yousefi, Amirreza Shaban, Mohamed Amgad, Ramraj Chandradevan, Lee A. D. Cooper
Learning Clinical Outcomes from Heterogeneous Genomic Data Sources
null
null
null
null
q-bio.QM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Translating the vast data generated by genomic platforms into reliable predictions of clinical outcomes remains a critical challenge in realizing the promise of genomic medicine largely due to small number of independent samples. In this paper, we show that neural networks can be trained to predict clinical outcomes ...
[ { "created": "Tue, 2 Apr 2019 19:36:51 GMT", "version": "v1" } ]
2019-04-04
[ [ "Yousefi", "Safoora", "" ], [ "Shaban", "Amirreza", "" ], [ "Amgad", "Mohamed", "" ], [ "Chandradevan", "Ramraj", "" ], [ "Cooper", "Lee A. D.", "" ] ]
Translating the vast data generated by genomic platforms into reliable predictions of clinical outcomes remains a critical challenge in realizing the promise of genomic medicine largely due to small number of independent samples. In this paper, we show that neural networks can be trained to predict clinical outcomes us...
0801.1012
George Tsibidis
George D. Tsibidis and Nektarios Tavernarakis
Nemo: a computational tool for analyzing nematode locomotion
12 pages, 2 figures. accepted by BMC Neuroscience 2007, 8:86
BMC Neuroscience 2007, 8:86
null
null
q-bio.OT q-bio.GN q-bio.QM
null
The nematode Caenorhabditis elegans responds to an impressive range of chemical, mechanical and thermal stimuli and is extensively used to investigate the molecular mechanisms that mediate chemosensation, mechanotransduction and thermosensation. The main behavioral output of these responses is manifested as alteratio...
[ { "created": "Mon, 7 Jan 2008 15:00:52 GMT", "version": "v1" } ]
2008-02-21
[ [ "Tsibidis", "George D.", "" ], [ "Tavernarakis", "Nektarios", "" ] ]
The nematode Caenorhabditis elegans responds to an impressive range of chemical, mechanical and thermal stimuli and is extensively used to investigate the molecular mechanisms that mediate chemosensation, mechanotransduction and thermosensation. The main behavioral output of these responses is manifested as alterations...
2102.11013
Juntang Zhuang
Juntang Zhuang, Nicha Dvornek, Sekhar Tatikonda, Xenophon Papademetris, Pamela Ventola, James Duncan
Multiple-shooting adjoint method for whole-brain dynamic causal modeling
27th International Conference on Information Processing in Medical Imaging
null
null
null
q-bio.NC cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dynamic causal modeling (DCM) is a Bayesian framework to infer directed connections between compartments, and has been used to describe the interactions between underlying neural populations based on functional neuroimaging data. DCM is typically analyzed with the expectation-maximization (EM) algorithm. However, bec...
[ { "created": "Sun, 14 Feb 2021 05:00:12 GMT", "version": "v1" } ]
2021-02-23
[ [ "Zhuang", "Juntang", "" ], [ "Dvornek", "Nicha", "" ], [ "Tatikonda", "Sekhar", "" ], [ "Papademetris", "Xenophon", "" ], [ "Ventola", "Pamela", "" ], [ "Duncan", "James", "" ] ]
Dynamic causal modeling (DCM) is a Bayesian framework to infer directed connections between compartments, and has been used to describe the interactions between underlying neural populations based on functional neuroimaging data. DCM is typically analyzed with the expectation-maximization (EM) algorithm. However, becau...
1609.06424
{\O}rnulf Borgan
{\O}rnulf Borgan (Department of Mathematics, University of Oslo)
Do Japanese and Italian women live longer than women in Scandinavia?
7 pages, 3 figures
null
null
null
q-bio.PE stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Life expectancies at birth are routinely computed from period life tables. Such period life expectancies may be distorted by selection when comparing countries where the living conditions improved earlier (like Norway and Sweden) with countries where they improved later (like Italy and Japan). One way to get a fair c...
[ { "created": "Wed, 21 Sep 2016 06:13:03 GMT", "version": "v1" } ]
2016-09-22
[ [ "Borgan", "Ørnulf", "", "Department of Mathematics, University of Oslo" ] ]
Life expectancies at birth are routinely computed from period life tables. Such period life expectancies may be distorted by selection when comparing countries where the living conditions improved earlier (like Norway and Sweden) with countries where they improved later (like Italy and Japan). One way to get a fair com...
1809.01281
Nadine Chang
Nadine Chang, John A. Pyles, Abhinav Gupta, Michael J. Tarr, Elissa M. Aminoff
BOLD5000: A public fMRI dataset of 5000 images
Currently in submission to Scientific Data
null
10.1038/s41597-019-0052-3
null
q-bio.NC cs.CV
http://creativecommons.org/licenses/by/4.0/
Vision science, particularly machine vision, has been revolutionized by introducing large-scale image datasets and statistical learning approaches. Yet, human neuroimaging studies of visual perception still rely on small numbers of images (around 100) due to time-constrained experimental procedures. To apply statisti...
[ { "created": "Wed, 5 Sep 2018 00:50:34 GMT", "version": "v1" } ]
2020-01-23
[ [ "Chang", "Nadine", "" ], [ "Pyles", "John A.", "" ], [ "Gupta", "Abhinav", "" ], [ "Tarr", "Michael J.", "" ], [ "Aminoff", "Elissa M.", "" ] ]
Vision science, particularly machine vision, has been revolutionized by introducing large-scale image datasets and statistical learning approaches. Yet, human neuroimaging studies of visual perception still rely on small numbers of images (around 100) due to time-constrained experimental procedures. To apply statistica...
1510.07992
Ben Nolting
Christopher M. Moore, Christopher R. Stieha, Ben C. Nolting, Maria K. Cameron, and Karen C. Abbott
QPot: An R Package for Stochastic Differential Equation Quasi-Potential Analysis
null
null
null
null
q-bio.QM math.DS math.PR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
QPot is an R package for analyzing two-dimensional systems of stochastic differential equations. It provides users with a wide range of tools to simulate, analyze, and visualize the dynamics of these systems. One of QPot's key features is the computation of the quasi-potential, an important tool for studying stochast...
[ { "created": "Tue, 27 Oct 2015 17:10:57 GMT", "version": "v1" } ]
2015-10-28
[ [ "Moore", "Christopher M.", "" ], [ "Stieha", "Christopher R.", "" ], [ "Nolting", "Ben C.", "" ], [ "Cameron", "Maria K.", "" ], [ "Abbott", "Karen C.", "" ] ]
QPot is an R package for analyzing two-dimensional systems of stochastic differential equations. It provides users with a wide range of tools to simulate, analyze, and visualize the dynamics of these systems. One of QPot's key features is the computation of the quasi-potential, an important tool for studying stochastic...
1005.1142
Atsushi Kamimura
Atsushi Kamimura and Kunihiko Kaneko
Reproduction of a Protocell by Replication of Minority Molecule in Catalytic Reaction Network
13 pages, 7 figures, submitted for publication
null
10.1103/PhysRevLett.105.268103
null
q-bio.CB cond-mat.stat-mech physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For understanding the origin of life, it is essential to explain the development of a compartmentalized structure, which undergoes growth and division, from a set of chemical reactions. In this study, a hypercycle with two chemicals that mutually catalyze each other is considered in order to show that the reproductio...
[ { "created": "Fri, 7 May 2010 07:20:29 GMT", "version": "v1" } ]
2015-05-18
[ [ "Kamimura", "Atsushi", "" ], [ "Kaneko", "Kunihiko", "" ] ]
For understanding the origin of life, it is essential to explain the development of a compartmentalized structure, which undergoes growth and division, from a set of chemical reactions. In this study, a hypercycle with two chemicals that mutually catalyze each other is considered in order to show that the reproduction ...
1807.03091
Aleksandr Aravkin
Chris Vogl, Peng Zheng, Stephen P. Seslar, and Aleksandr Y. Aravkin
Computer Assisted Localization of a Heart Arrhythmia
4 pages, 5 figures
null
null
null
q-bio.TO math.OC stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the problem of locating a point-source heart arrhythmia using data from a standard diagnostic procedure, where a reference catheter is placed in the heart, and arrival times from a second diagnostic catheter are recorded as the diagnostic catheter moves around within the heart. We model this situation as ...
[ { "created": "Mon, 9 Jul 2018 13:06:38 GMT", "version": "v1" } ]
2018-07-10
[ [ "Vogl", "Chris", "" ], [ "Zheng", "Peng", "" ], [ "Seslar", "Stephen P.", "" ], [ "Aravkin", "Aleksandr Y.", "" ] ]
We consider the problem of locating a point-source heart arrhythmia using data from a standard diagnostic procedure, where a reference catheter is placed in the heart, and arrival times from a second diagnostic catheter are recorded as the diagnostic catheter moves around within the heart. We model this situation as a ...
2012.15681
William Bialek
Vasyl Alba, Gordon J. Berman, William Bialek, and Joshua W. Shaevitz
Exploring a strongly non-Markovian animal behavior
null
null
null
null
q-bio.NC cond-mat.stat-mech
http://creativecommons.org/licenses/by/4.0/
A freely walking fly visits roughly 100 stereotyped states in a strongly non-Markovian sequence. To explore these dynamics, we develop a generalization of the information bottleneck method, compressing the large number of behavioral states into a more compact description that maximally preserves the correlations betw...
[ { "created": "Thu, 31 Dec 2020 16:02:44 GMT", "version": "v1" } ]
2021-01-01
[ [ "Alba", "Vasyl", "" ], [ "Berman", "Gordon J.", "" ], [ "Bialek", "William", "" ], [ "Shaevitz", "Joshua W.", "" ] ]
A freely walking fly visits roughly 100 stereotyped states in a strongly non-Markovian sequence. To explore these dynamics, we develop a generalization of the information bottleneck method, compressing the large number of behavioral states into a more compact description that maximally preserves the correlations betwee...
1710.02362
Cyril Karamaoun
Cyril Karamaoun, Beno\^it Haut and Alain Van Muylem
A new role for exhaled nitric oxide as a functional marker of peripheral airway caliber changes: a theoretical study
null
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Though considered as an inflammation marker, exhaled nitric oxide (FENO) was shown to be sensitive to airway caliber changes to such an extent that it might be considered as a marker of them. It is thus important to understand how these changes and their localization mechanically affect the total NO flux penetrating ...
[ { "created": "Fri, 6 Oct 2017 12:07:33 GMT", "version": "v1" } ]
2017-10-09
[ [ "Karamaoun", "Cyril", "" ], [ "Haut", "Benoît", "" ], [ "Van Muylem", "Alain", "" ] ]
Though considered as an inflammation marker, exhaled nitric oxide (FENO) was shown to be sensitive to airway caliber changes to such an extent that it might be considered as a marker of them. It is thus important to understand how these changes and their localization mechanically affect the total NO flux penetrating th...
1104.5008
William Bruno Ph.D.
William J. Bruno
What does photon energy tell us about cellphone safety?
6 pages. Revision includes appended response to published critique by B. Leikind
null
null
null
q-bio.OT physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been argued that cellphones are safe because a single microwave photon does not have enough energy to break a chemical bond. We show that cellphone technology operates in the classical wave limit, not the single photon limit. Based on energy densities relative to thermal energy, we estimate thresholds at which...
[ { "created": "Tue, 26 Apr 2011 19:58:26 GMT", "version": "v1" }, { "created": "Tue, 25 Apr 2017 03:00:34 GMT", "version": "v2" } ]
2017-04-26
[ [ "Bruno", "William J.", "" ] ]
It has been argued that cellphones are safe because a single microwave photon does not have enough energy to break a chemical bond. We show that cellphone technology operates in the classical wave limit, not the single photon limit. Based on energy densities relative to thermal energy, we estimate thresholds at which e...
1911.06921
Joseph Natale
Joseph L. Natale, H. George E. Hentschel, Ilya Nemenman
Precise Spatial Memory in Local Random Networks
9 pages, 5 figures; presented at APS March Meeting 2019 conference (http://meetings.aps.org/Meeting/MAR19/Session/R67.10)
Phys. Rev. E 102, 022405 (2020)
10.1103/PhysRevE.102.022405
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Self-sustained, elevated neuronal activity persisting on time scales of ten seconds or longer is thought to be vital for aspects of working memory, including brain representations of real space. Continuous-attractor neural networks, one of the most well-known modeling frameworks for persistent activity, have been abl...
[ { "created": "Sat, 16 Nov 2019 00:24:04 GMT", "version": "v1" } ]
2020-08-19
[ [ "Natale", "Joseph L.", "" ], [ "Hentschel", "H. George E.", "" ], [ "Nemenman", "Ilya", "" ] ]
Self-sustained, elevated neuronal activity persisting on time scales of ten seconds or longer is thought to be vital for aspects of working memory, including brain representations of real space. Continuous-attractor neural networks, one of the most well-known modeling frameworks for persistent activity, have been able ...
1510.04180
Andrew Hart PhD
Andrew Hart and Servet Mart\'inez
An Entropy-Based Technique for Classifying Bacterial Chromosomes According to Synonymous Codon Usage
22 pages, 3 figures
null
null
null
q-bio.GN math.PR stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a framework based on conditional entropy and the Dirichlet distribution for classifying chromosomes based on the degree to which they use synonymous codons uniformly or preferentially, that is, whether or not codons that code for an amino acid appear with the same relative frequency. Applying the approach ...
[ { "created": "Wed, 14 Oct 2015 16:03:09 GMT", "version": "v1" } ]
2015-10-15
[ [ "Hart", "Andrew", "" ], [ "Martínez", "Servet", "" ] ]
We present a framework based on conditional entropy and the Dirichlet distribution for classifying chromosomes based on the degree to which they use synonymous codons uniformly or preferentially, that is, whether or not codons that code for an amino acid appear with the same relative frequency. Applying the approach to...
1712.00919
Erin Gorsich
Erin E. Gorsich, Rampal S. Etienne, Jan Medlock, Brianna R. Beechler, Johannie M. Spaan, Robert S. Spaan, Vanessa O. Ezenwa, Anna E. Jolles
Interactions between chronic diseases: asymmetric outcomes of co-infection at individual and population scales
13 pages, 4 figures, 3 documents in the supporting information
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Co-infecting parasites and pathogens remain a leading challenge for global public health due to their consequences for individual-level infection risk and disease progression. However, a clear understanding of the population-level consequences of co-infection is lacking. Here, we constructed a model that includes thr...
[ { "created": "Mon, 4 Dec 2017 06:15:22 GMT", "version": "v1" } ]
2017-12-05
[ [ "Gorsich", "Erin E.", "" ], [ "Etienne", "Rampal S.", "" ], [ "Medlock", "Jan", "" ], [ "Beechler", "Brianna R.", "" ], [ "Spaan", "Johannie M.", "" ], [ "Spaan", "Robert S.", "" ], [ "Ezenwa", "Vanessa O.", ...
Co-infecting parasites and pathogens remain a leading challenge for global public health due to their consequences for individual-level infection risk and disease progression. However, a clear understanding of the population-level consequences of co-infection is lacking. Here, we constructed a model that includes three...
1001.4914
David Morrison
Meaghan E. Jenkins, David A. Morrison, Tony D. Auld
Estimating seed bank accumulation and dynamics in three obligate-seeder Proteaceae species
15 pages, including 4 Figures and 4 Tables
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The seed bank dynamics of the three co-occurring obligate-seeder (i.e. fire-sensitive) Proteaceae species, Banksia ericifolia, Banksia marginata and Petrophile pulchella, were examined at sites of varying time since the most recent fire (i.e. plant age) in the Sydney region. Significant variation among species was fo...
[ { "created": "Wed, 27 Jan 2010 11:35:02 GMT", "version": "v1" } ]
2010-01-28
[ [ "Jenkins", "Meaghan E.", "" ], [ "Morrison", "David A.", "" ], [ "Auld", "Tony D.", "" ] ]
The seed bank dynamics of the three co-occurring obligate-seeder (i.e. fire-sensitive) Proteaceae species, Banksia ericifolia, Banksia marginata and Petrophile pulchella, were examined at sites of varying time since the most recent fire (i.e. plant age) in the Sydney region. Significant variation among species was foun...
1602.06937
Luis Bonilla L.
F. Terragni, M. Carretero, V. Capasso and L. L. Bonilla
Stochastic Model of Tumor-induced Angiogenesis: Ensemble Averages and Deterministic Equations
26 pages, 8 figures
Phys. Rev. E 93, 022413 (2016)
10.1103/PhysRevE.93.022413
null
q-bio.TO cond-mat.stat-mech physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A recent conceptual model of tumor-driven angiogenesis including branching, elongation, and anastomosis of blood vessels captures some of the intrinsic multiscale structures of this complex system, yet allowing to extract a deterministic integro-partial differential description of the vessel tip density [Phys. Rev. E...
[ { "created": "Mon, 22 Feb 2016 20:54:16 GMT", "version": "v1" } ]
2016-02-24
[ [ "Terragni", "F.", "" ], [ "Carretero", "M.", "" ], [ "Capasso", "V.", "" ], [ "Bonilla", "L. L.", "" ] ]
A recent conceptual model of tumor-driven angiogenesis including branching, elongation, and anastomosis of blood vessels captures some of the intrinsic multiscale structures of this complex system, yet allowing to extract a deterministic integro-partial differential description of the vessel tip density [Phys. Rev. E 9...
2102.04746
Mats Brun PhD
Mats K. Brun, Elyes Ahmed, Jan Martin Nordbotten, Nils Christian Stenseth
Modeling the process of speciation using a multi-scale framework including error estimates
27 pages, 27 figures
null
null
null
q-bio.PE math.AP
http://creativecommons.org/licenses/by/4.0/
This paper concerns the modeling and numerical simulation of the process of speciation. In particular, given conditions for which one or more speciation events within an ecosystem occur, our aim is to develop the necessary modeling and simulation tools. Care is also taken to establish a solid mathematical foundation ...
[ { "created": "Tue, 9 Feb 2021 10:26:16 GMT", "version": "v1" }, { "created": "Thu, 7 Oct 2021 16:17:05 GMT", "version": "v2" } ]
2021-10-08
[ [ "Brun", "Mats K.", "" ], [ "Ahmed", "Elyes", "" ], [ "Nordbotten", "Jan Martin", "" ], [ "Stenseth", "Nils Christian", "" ] ]
This paper concerns the modeling and numerical simulation of the process of speciation. In particular, given conditions for which one or more speciation events within an ecosystem occur, our aim is to develop the necessary modeling and simulation tools. Care is also taken to establish a solid mathematical foundation on...
1106.1723
Mike Steel Prof.
David Bryant and Mike Steel
'Bureaucratic' set systems, and their role in phylogenetics
6 pages, 1 figure
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We say that a collection $\Cc$ of subsets of $X$ is {\em bureaucratic} if every maximal hierarchy on $X$ contained in $\Cc$ is also maximum. We characterise bureaucratic set systems and show how they arise in phylogenetics. This framework has several useful algorithmic consequences: we generalize some earlier results...
[ { "created": "Thu, 9 Jun 2011 07:37:27 GMT", "version": "v1" } ]
2011-06-10
[ [ "Bryant", "David", "" ], [ "Steel", "Mike", "" ] ]
We say that a collection $\Cc$ of subsets of $X$ is {\em bureaucratic} if every maximal hierarchy on $X$ contained in $\Cc$ is also maximum. We characterise bureaucratic set systems and show how they arise in phylogenetics. This framework has several useful algorithmic consequences: we generalize some earlier results a...
2204.07904
Madhur Mangalam
Damian G. Kelty-Stephen, Madhur Mangalam
Turing's cascade instability supports the coordination of the mind, brain, and behavior
53 pages, 13 figures
null
null
null
q-bio.NC cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Turing inspired a computer metaphor of the mind and brain that has been handy and has spawned decades of empirical investigation, but he did much more and offered behavioral and cognitive sciences another metaphor--that of the cascade. The time has come to confront Turing's cascading instability, which suggests a geo...
[ { "created": "Sun, 17 Apr 2022 02:22:30 GMT", "version": "v1" } ]
2022-04-19
[ [ "Kelty-Stephen", "Damian G.", "" ], [ "Mangalam", "Madhur", "" ] ]
Turing inspired a computer metaphor of the mind and brain that has been handy and has spawned decades of empirical investigation, but he did much more and offered behavioral and cognitive sciences another metaphor--that of the cascade. The time has come to confront Turing's cascading instability, which suggests a geome...
q-bio/0511043
Gasper Tkacik
Noam Slonim, Gurinder Singh Atwal, Gasper Tkacik, William Bialek
Information based clustering
To appear in Proceedings of the National Academy of Sciences USA, 11 pages, 9 figures
null
10.1073/pnas.0507432102
null
q-bio.QM
null
In an age of increasingly large data sets, investigators in many different disciplines have turned to clustering as a tool for data analysis and exploration. Existing clustering methods, however, typically depend on several nontrivial assumptions about the structure of data. Here we reformulate the clustering problem...
[ { "created": "Sat, 26 Nov 2005 04:53:47 GMT", "version": "v1" } ]
2009-11-11
[ [ "Slonim", "Noam", "" ], [ "Atwal", "Gurinder Singh", "" ], [ "Tkacik", "Gasper", "" ], [ "Bialek", "William", "" ] ]
In an age of increasingly large data sets, investigators in many different disciplines have turned to clustering as a tool for data analysis and exploration. Existing clustering methods, however, typically depend on several nontrivial assumptions about the structure of data. Here we reformulate the clustering problem f...
1210.7414
Asaf Gal
Asaf Gal and Shimon Marom
Self-organized criticality in single neuron excitability
5 pages, 2 figures
Phys. Rev. E 88, 062717 (2013)
10.1103/PhysRevE.88.062717
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present experimental and theoretical arguments, at the single neuron level, suggesting that neuronal response fluctuations reflect a process that positions the neuron near a transition point that separates excitable and unexcitable phases. This view is supported by the dynamical properties of the system as observe...
[ { "created": "Sun, 28 Oct 2012 07:30:49 GMT", "version": "v1" }, { "created": "Tue, 30 Oct 2012 19:34:24 GMT", "version": "v2" }, { "created": "Wed, 31 Oct 2012 15:21:20 GMT", "version": "v3" }, { "created": "Wed, 27 Feb 2013 11:46:34 GMT", "version": "v4" }, { "c...
2013-12-25
[ [ "Gal", "Asaf", "" ], [ "Marom", "Shimon", "" ] ]
We present experimental and theoretical arguments, at the single neuron level, suggesting that neuronal response fluctuations reflect a process that positions the neuron near a transition point that separates excitable and unexcitable phases. This view is supported by the dynamical properties of the system as observed ...
2008.10992
Tim Friede
Tobias M\"utze and Tim Friede
Data monitoring committees for clinical trials evaluating treatments of COVID-19
null
null
null
null
q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The first cases of coronavirus disease 2019 (COVID-19) were reported in December 2019 and the outbreak of SARS-CoV-2 was declared a pandemic in March 2020 by the World Health Organization. This sparked a plethora of investigations into diagnostics and vaccination for SARS-CoV-2, as well as treatments for COVID-19. Si...
[ { "created": "Thu, 20 Aug 2020 08:59:34 GMT", "version": "v1" } ]
2020-08-26
[ [ "Mütze", "Tobias", "" ], [ "Friede", "Tim", "" ] ]
The first cases of coronavirus disease 2019 (COVID-19) were reported in December 2019 and the outbreak of SARS-CoV-2 was declared a pandemic in March 2020 by the World Health Organization. This sparked a plethora of investigations into diagnostics and vaccination for SARS-CoV-2, as well as treatments for COVID-19. Sinc...
0903.0731
David Lusseau
David Lusseau and Larissa Conradt
The emergence of unshared consensus decisions in bottlenose dolphins
17 pages, 3 figures. in press as part of the special issue "Social Networks: new perspectives" of Behavioral Ecology and Sociobiology
null
null
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Unshared consensus decision-making processes, in which one or a small number of individuals make the decision for the rest of a group, are rarely documented. However, this mechanism can be beneficial for all group members when one individual has greater knowledge about the benefits of the decision than other group me...
[ { "created": "Wed, 4 Mar 2009 11:11:31 GMT", "version": "v1" } ]
2009-03-05
[ [ "Lusseau", "David", "" ], [ "Conradt", "Larissa", "" ] ]
Unshared consensus decision-making processes, in which one or a small number of individuals make the decision for the rest of a group, are rarely documented. However, this mechanism can be beneficial for all group members when one individual has greater knowledge about the benefits of the decision than other group memb...
1206.4812
Gilles Wainrib
Mathieu Galtier, Gilles Wainrib
A biological gradient descent for prediction through a combination of STDP and homeostatic plasticity
36 pages, 3 figures
null
null
null
q-bio.NC cs.NE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Identifying, formalizing and combining biological mechanisms which implement known brain functions, such as prediction, is a main aspect of current research in theoretical neuroscience. In this letter, the mechanisms of Spike Timing Dependent Plasticity (STDP) and homeostatic plasticity, combined in an original mathe...
[ { "created": "Thu, 21 Jun 2012 09:13:39 GMT", "version": "v1" }, { "created": "Tue, 11 Jun 2013 16:11:01 GMT", "version": "v2" } ]
2013-06-12
[ [ "Galtier", "Mathieu", "" ], [ "Wainrib", "Gilles", "" ] ]
Identifying, formalizing and combining biological mechanisms which implement known brain functions, such as prediction, is a main aspect of current research in theoretical neuroscience. In this letter, the mechanisms of Spike Timing Dependent Plasticity (STDP) and homeostatic plasticity, combined in an original mathema...
1005.5292
Luciano Teresi
Paola Nardinocchi, Luciano Teresi, Valerio Varano
Myocardial Contractions and the Ventricular Pressure--Volume Relationship
16 pages, 18 figures
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a reduced-order heart model with the aim of introducing a novel point of view in the interpretation of the pressure-volume loops. The novelty of the approach is based on the definition of active contraction as opposed to that of active stress. The consequences of the assumption are discussed with reference...
[ { "created": "Fri, 28 May 2010 13:48:52 GMT", "version": "v1" } ]
2010-05-31
[ [ "Nardinocchi", "Paola", "" ], [ "Teresi", "Luciano", "" ], [ "Varano", "Valerio", "" ] ]
We present a reduced-order heart model with the aim of introducing a novel point of view in the interpretation of the pressure-volume loops. The novelty of the approach is based on the definition of active contraction as opposed to that of active stress. The consequences of the assumption are discussed with reference t...
0706.3681
Marcin Molski
Marcin Molski
On the Classification Scheme for Phenomenological Universalities in Growth Problems in Physics and Other Sciences
null
null
null
null
q-bio.OT q-bio.QM
null
Comment on "Classification Scheme for Phenomenological Universalities in Growth Problems in Physics and Other Sciences" by P. Castorina, P. P. Delsanto and C. Guiot, Phys. Rev. Lett. {\bf 96}, 188701 (2006) is presented. It has been proved that the West-like function of growth derived by the authors is incorrect and ...
[ { "created": "Mon, 25 Jun 2007 17:40:10 GMT", "version": "v1" } ]
2007-06-26
[ [ "Molski", "Marcin", "" ] ]
Comment on "Classification Scheme for Phenomenological Universalities in Growth Problems in Physics and Other Sciences" by P. Castorina, P. P. Delsanto and C. Guiot, Phys. Rev. Lett. {\bf 96}, 188701 (2006) is presented. It has been proved that the West-like function of growth derived by the authors is incorrect and th...
2111.11753
Flavia Feliciangeli
Hanan Dreiwi, Flavia Feliciangeli, Mario Castro, Grant Lythe, Carmen Molina-Par\'is, Mart\'in L\'opez-Garc\'ia
A stochastic model of cell proliferation and death across a sequence of compartments
22 pages, 8 figures
null
null
null
q-bio.CB math.DS
http://creativecommons.org/licenses/by/4.0/
Cells of the human body have nearly identical genome but exhibit very different phenotypes that allow them to carry out specific functions and react to changes in their surrounding environment. This division of labour is achieved by cellular division and cellular differentiation, events which lead to a population of ...
[ { "created": "Tue, 23 Nov 2021 10:00:59 GMT", "version": "v1" } ]
2021-11-24
[ [ "Dreiwi", "Hanan", "" ], [ "Feliciangeli", "Flavia", "" ], [ "Castro", "Mario", "" ], [ "Lythe", "Grant", "" ], [ "Molina-París", "Carmen", "" ], [ "López-García", "Martín", "" ] ]
Cells of the human body have nearly identical genome but exhibit very different phenotypes that allow them to carry out specific functions and react to changes in their surrounding environment. This division of labour is achieved by cellular division and cellular differentiation, events which lead to a population of ce...
q-bio/0702012
Changbong Hyeon
Changbong Hyeon and Jose N. Onuchic
Internal strain regulates the nucleotide binding site of the kinesin leading head
34 pages, 9 Figures
PNAS (2007) vol 104, 2175-2180
10.1073/pnas.0610939104
null
q-bio.BM physics.bio-ph
null
In the presence of ATP, kinesin proceeds along the protofilament of microtubule by alternated binding of two motor domains on the tubulin binding sites. Since the processivity of kinesin is much higher than other motor proteins, it has been speculated that there exists a mechanism for allosteric regulation between th...
[ { "created": "Wed, 7 Feb 2007 18:55:00 GMT", "version": "v1" } ]
2009-11-13
[ [ "Hyeon", "Changbong", "" ], [ "Onuchic", "Jose N.", "" ] ]
In the presence of ATP, kinesin proceeds along the protofilament of microtubule by alternated binding of two motor domains on the tubulin binding sites. Since the processivity of kinesin is much higher than other motor proteins, it has been speculated that there exists a mechanism for allosteric regulation between the ...
1809.02506
Mohammad Golbabaee
Arnold Julian Vinoj Benjamin, Pedro A. G\'omez, Mohammad Golbabaee, Tim Sprenger, Marion I. Menzel, Mike E. Davies, Ian Marshall
Balanced multi-shot EPI for accelerated Cartesian MRF: An alternative to spiral MRF
Proceedings of the Joint Annual Meeting ISMRM-ESMRMB 2018 - Paris
null
null
null
q-bio.QM cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The main purpose of this study is to show that a highly accelerated Cartesian MRF scheme using a multi-shot EPI readout (i.e. multi-shot EPI-MRF) can produce good quality multi-parametric maps such as T1, T2 and proton density (PD) in a sufficiently short scan duration that is similar to conventional MRF. This multi-...
[ { "created": "Thu, 6 Sep 2018 12:51:58 GMT", "version": "v1" } ]
2018-09-10
[ [ "Benjamin", "Arnold Julian Vinoj", "" ], [ "Gómez", "Pedro A.", "" ], [ "Golbabaee", "Mohammad", "" ], [ "Sprenger", "Tim", "" ], [ "Menzel", "Marion I.", "" ], [ "Davies", "Mike E.", "" ], [ "Marshall", "Ian",...
The main purpose of this study is to show that a highly accelerated Cartesian MRF scheme using a multi-shot EPI readout (i.e. multi-shot EPI-MRF) can produce good quality multi-parametric maps such as T1, T2 and proton density (PD) in a sufficiently short scan duration that is similar to conventional MRF. This multi-sh...
2308.10645
Gerald Cooray PhD
Gerald K. Cooray, Vernon Cooray and Karl Friston
Canonical Cortical Field Theories
19 pages, 1 figure
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
We characterise the dynamics of neuronal activity, in terms of field theory, using neural units placed on a 2D-lattice modelling the cortical surface. The electrical activity of neuronal units was analysed with the aim of deriving a neural field model with a simple functional form that still able to predict or reprod...
[ { "created": "Mon, 21 Aug 2023 11:34:05 GMT", "version": "v1" } ]
2023-08-22
[ [ "Cooray", "Gerald K.", "" ], [ "Cooray", "Vernon", "" ], [ "Friston", "Karl", "" ] ]
We characterise the dynamics of neuronal activity, in terms of field theory, using neural units placed on a 2D-lattice modelling the cortical surface. The electrical activity of neuronal units was analysed with the aim of deriving a neural field model with a simple functional form that still able to predict or reproduc...
1305.5103
Miloje Rakocevic M.
Miloje M. Rakocevic
Harmonic mean as a determinant of the genetic code
20 pages, 14 tables, 5 boxes, 12 footnotes, 4 appendices with 8 tables and 3 surveys; in Conclusion: the hypothesis about extraterrestrial life
null
null
null
q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that there is a sense in splitting Genetic Code Table (GCT) into three parts using the harmonic mean, calculated by the formula H (a, b) = 2ab / (a + b), where a = 63 and b = 31.5. Within these three parts, the amino acids (AAs) are positioned on the basis of the validity of the evident regularities of ke...
[ { "created": "Tue, 21 May 2013 18:04:17 GMT", "version": "v1" }, { "created": "Sat, 1 Jun 2013 18:51:31 GMT", "version": "v2" }, { "created": "Sat, 8 Jun 2013 08:44:04 GMT", "version": "v3" }, { "created": "Wed, 12 Jun 2013 10:36:23 GMT", "version": "v4" } ]
2013-06-13
[ [ "Rakocevic", "Miloje M.", "" ] ]
It is shown that there is a sense in splitting Genetic Code Table (GCT) into three parts using the harmonic mean, calculated by the formula H (a, b) = 2ab / (a + b), where a = 63 and b = 31.5. Within these three parts, the amino acids (AAs) are positioned on the basis of the validity of the evident regularities of key ...
1708.04168
Karlis Kanders
Karlis Kanders, Tom Lorimer, Yoko Uwate, Willi-Hans Steeb and Ruedi Stoop
Robust transformations of firing patterns for neural networks
null
null
null
null
q-bio.NC nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As a promising computational paradigm, occurrence of critical states in artificial and biological neural networks has attracted wide-spread attention. An often-made explicit or implicit assumption is that one single critical state is responsible for two separate notions of criticality (avalanche criticality and dynam...
[ { "created": "Mon, 14 Aug 2017 15:11:04 GMT", "version": "v1" } ]
2017-08-15
[ [ "Kanders", "Karlis", "" ], [ "Lorimer", "Tom", "" ], [ "Uwate", "Yoko", "" ], [ "Steeb", "Willi-Hans", "" ], [ "Stoop", "Ruedi", "" ] ]
As a promising computational paradigm, occurrence of critical states in artificial and biological neural networks has attracted wide-spread attention. An often-made explicit or implicit assumption is that one single critical state is responsible for two separate notions of criticality (avalanche criticality and dynamic...
2201.09654
Hal Sorbonne Universite Gestionnaire
F\'abio Carneiro (ICM), Dario Saracino (ARAMIS), Vincent Huin (LilNCog (ex-JPARC)), Fabienne Clot, C\'ecile Delorme, Aur\'elie M\'eneret (ICM), St\'ephane Thobois (CNC), Florence Cormier, Jean Christophe Corvol (ICM), Timoth\'ee Lenglet, Marie Vidailhet (ICM), Marie-Odile Habert (LIB), Audrey Gabelle (PSNREC), ...
Isolated parkinsonism is an atypical presentation of GRN and C9orf72 gene mutations
null
Parkinsonism and Related Disorders, Elsevier, 2020, 80, pp.73-81
10.1016/j.parkreldis.2020.09.019
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Introduction: A phenotype of isolated parkinsonism mimicking Idiopathic Parkinson's Disease (IPD) is a rare clinical presentation of GRN and C9orf72 mutations, the major genetic causes of frontotemporal dementia (FTD). It still remains controversial if this association is fortuitous or not, and which clinical clues c...
[ { "created": "Mon, 24 Jan 2022 13:18:40 GMT", "version": "v1" } ]
2022-01-25
[ [ "Carneiro", "Fábio", "", "ICM" ], [ "Saracino", "Dario", "", "ARAMIS" ], [ "Huin", "Vincent", "", "LilNCog" ], [ "Clot", "Fabienne", "", "ICM" ], [ "Delorme", "Cécile", "", "ICM" ], [ "Méneret", "Aurélie", ...
Introduction: A phenotype of isolated parkinsonism mimicking Idiopathic Parkinson's Disease (IPD) is a rare clinical presentation of GRN and C9orf72 mutations, the major genetic causes of frontotemporal dementia (FTD). It still remains controversial if this association is fortuitous or not, and which clinical clues cou...
1512.00810
Carsten Allefeld
Carsten Allefeld, Kai G\"orgen, John-Dylan Haynes
Valid population inference for information-based imaging: From the second-level $t$-test to prevalence inference
manuscript accepted by NeuroImage, plus minor fixes and a note added after publication
NeuroImage 141: 378-392, 2016
10.1016/j.neuroimage.2016.07.040
null
q-bio.NC stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In multivariate pattern analysis of neuroimaging data, 'second-level' inference is often performed by entering classification accuracies into a $t$-test vs chance level across subjects. We argue that while the random-effects analysis implemented by the $t$-test does provide population inference if applied to activati...
[ { "created": "Wed, 2 Dec 2015 18:59:46 GMT", "version": "v1" }, { "created": "Wed, 1 Jun 2016 19:46:45 GMT", "version": "v2" }, { "created": "Wed, 10 Aug 2016 17:00:26 GMT", "version": "v3" } ]
2016-08-11
[ [ "Allefeld", "Carsten", "" ], [ "Görgen", "Kai", "" ], [ "Haynes", "John-Dylan", "" ] ]
In multivariate pattern analysis of neuroimaging data, 'second-level' inference is often performed by entering classification accuracies into a $t$-test vs chance level across subjects. We argue that while the random-effects analysis implemented by the $t$-test does provide population inference if applied to activation...
0711.2058
Igor M. Suslov
I. M. Suslov (P.L.Kapitza Institute for Physical Problems, Moscow, Russia)
Computer Model of a "Sense of Humour". I. General Algorithm
10 pages, 3 figures included; continuation of this series to appear
Biofizika SSSR 37, 318 (1992) [Biophysics 37, 242 (1992)]
null
null
q-bio.NC cs.AI
null
A computer model of a "sense of humour" is proposed. The humorous effect is interpreted as a specific malfunction in the course of information processing due to the need for the rapid deletion of the false version transmitted into consciousness. The biological function of a sense of humour consists in speeding up the...
[ { "created": "Tue, 13 Nov 2007 19:00:32 GMT", "version": "v1" } ]
2007-11-27
[ [ "Suslov", "I. M.", "", "P.L.Kapitza Institute for Physical Problems, Moscow,\n Russia" ] ]
A computer model of a "sense of humour" is proposed. The humorous effect is interpreted as a specific malfunction in the course of information processing due to the need for the rapid deletion of the false version transmitted into consciousness. The biological function of a sense of humour consists in speeding up the b...
0708.3869
Guy Katriel
Guy Katriel
Existence of periodic solutions for enzyme-catalysed reactions with periodic substrate input
null
Discrete & Continuous Dynamical Systems - Supplements, September 2007
null
null
q-bio.BM nlin.AO
null
Considering a basic enzyme-catalysed reaction, in which the rate of input of the substrate varies periodically in time, we give a necessary and sufficient condition for the existence of a periodic solution of the reaction equations. The proof employs the Leray-Schauder degree, applied to an appropriately constructed ...
[ { "created": "Tue, 28 Aug 2007 23:18:05 GMT", "version": "v1" } ]
2011-11-10
[ [ "Katriel", "Guy", "" ] ]
Considering a basic enzyme-catalysed reaction, in which the rate of input of the substrate varies periodically in time, we give a necessary and sufficient condition for the existence of a periodic solution of the reaction equations. The proof employs the Leray-Schauder degree, applied to an appropriately constructed ho...
2008.08073
Jerome Feldman
Jerome A. Feldman (ICSI and UC Berkeley)
On the Evolution of Subjective Experience
49 pages 5 figures. This 7/22/2021 version preserves all the content of the previous version and adds additional discussion (in italics). It also includes several new references to connect with current literature. A companion arXiv article has also been updated
null
null
null
q-bio.NC cs.NE q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Subjective Experience (SE) is part of the ancient mind-body problem, which continues to be one of deepest mysteries of science. Despite major advances in many fields, there is still no plausible causal link between SE and its realization in the body. The core issue is the incompatibility of objective (3rd person) pub...
[ { "created": "Tue, 18 Aug 2020 17:54:39 GMT", "version": "v1" }, { "created": "Fri, 23 Jul 2021 17:41:53 GMT", "version": "v2" }, { "created": "Fri, 25 Mar 2022 18:16:35 GMT", "version": "v3" } ]
2022-03-29
[ [ "Feldman", "Jerome A.", "", "ICSI and UC Berkeley" ] ]
Subjective Experience (SE) is part of the ancient mind-body problem, which continues to be one of deepest mysteries of science. Despite major advances in many fields, there is still no plausible causal link between SE and its realization in the body. The core issue is the incompatibility of objective (3rd person) publi...
1302.4111
Thomas R. Weikl
Thomas R. Weikl and Bahram Hemmateenejad
How conformational changes can affect catalysis, inhibition and drug resistance of enzymes with induced-fit binding mechanism such as the HIV-1 protease
9 pages, 2 figures, 3 tables; to appear in "BBA Proteins and Proteomics" as part of a special issue with the title "The emerging dynamic view of proteins: Protein plasticity in allostery, evolution and self-assembly."
null
10.1016/j.bbapap.2013.01.027
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A central question is how the conformational changes of proteins affect their function and the inhibition of this function by drug molecules. Many enzymes change from an open to a closed conformation upon binding of substrate or inhibitor molecules. These conformational changes have been suggested to follow an induce...
[ { "created": "Sun, 17 Feb 2013 19:41:07 GMT", "version": "v1" } ]
2013-02-19
[ [ "Weikl", "Thomas R.", "" ], [ "Hemmateenejad", "Bahram", "" ] ]
A central question is how the conformational changes of proteins affect their function and the inhibition of this function by drug molecules. Many enzymes change from an open to a closed conformation upon binding of substrate or inhibitor molecules. These conformational changes have been suggested to follow an induced-...
0711.4724
Yannick Brohard
Laurence Gaume (AMAP), Yo\"el Forterre (IUSTI)
A viscoelastic deadly fluid in carnivorous pitcher plants
null
PLoS ONE 2, 11 (2007) on-line
10.1063/1.2964772
A-07-32
q-bio.PE
null
Background : The carnivorous plants of the genus Nepenthes, widely distributed in the Asian tropics, rely mostly on nutrients derived from arthropods trapped in their pitcher-shaped leaves and digested by their enzymatic fluid. The genus exhibits a great diversity of prey and pitcher forms and its mechanism of trappi...
[ { "created": "Thu, 29 Nov 2007 14:07:15 GMT", "version": "v1" } ]
2009-11-13
[ [ "Gaume", "Laurence", "", "AMAP" ], [ "Forterre", "Yoël", "", "IUSTI" ] ]
Background : The carnivorous plants of the genus Nepenthes, widely distributed in the Asian tropics, rely mostly on nutrients derived from arthropods trapped in their pitcher-shaped leaves and digested by their enzymatic fluid. The genus exhibits a great diversity of prey and pitcher forms and its mechanism of trapping...
1710.11569
Adam Noel
Adam Noel, Shayan Monabbati, Dimitrios Makrakis, Andrew W. Eckford
Timing Control of Single Neuron Spikes with Optogenetic Stimulation
6 pages, 8 figures, 3 tables. To be presented at the 2018 IEEE International Conference on Communications (IEEE ICC 2018) in May 2018
null
10.1109/ICC.2018.8422667
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper predicts the ability to externally control the firing times of a cortical neuron whose behavior follows the Izhikevich neuron model. The Izhikevich neuron model provides an efficient and biologically plausible method to track a cortical neuron's membrane potential and its firing times. The external control...
[ { "created": "Tue, 31 Oct 2017 16:33:45 GMT", "version": "v1" }, { "created": "Tue, 13 Feb 2018 08:29:49 GMT", "version": "v2" } ]
2018-09-06
[ [ "Noel", "Adam", "" ], [ "Monabbati", "Shayan", "" ], [ "Makrakis", "Dimitrios", "" ], [ "Eckford", "Andrew W.", "" ] ]
This paper predicts the ability to externally control the firing times of a cortical neuron whose behavior follows the Izhikevich neuron model. The Izhikevich neuron model provides an efficient and biologically plausible method to track a cortical neuron's membrane potential and its firing times. The external control i...
1503.05140
Ehsaneddin Asgari
Ehsaneddin Asgari and Mohammad R.K. Mofrad
ProtVec: A Continuous Distributed Representation of Biological Sequences
null
PLoS ONE 10(11): e0141287, 2015
10.1371/journal.pone.0141287
null
q-bio.QM cs.AI cs.LG q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a new representation and feature extraction method for biological sequences. Named bio-vectors (BioVec) to refer to biological sequences in general with protein-vectors (ProtVec) for proteins (amino-acid sequences) and gene-vectors (GeneVec) for gene sequences, this representation can be widely used in a...
[ { "created": "Tue, 17 Mar 2015 17:55:22 GMT", "version": "v1" }, { "created": "Thu, 26 May 2016 20:17:51 GMT", "version": "v2" } ]
2016-05-30
[ [ "Asgari", "Ehsaneddin", "" ], [ "Mofrad", "Mohammad R. K.", "" ] ]
We introduce a new representation and feature extraction method for biological sequences. Named bio-vectors (BioVec) to refer to biological sequences in general with protein-vectors (ProtVec) for proteins (amino-acid sequences) and gene-vectors (GeneVec) for gene sequences, this representation can be widely used in app...
2207.12914
Miguel Aguilera
Miguel Aguilera, \'Angel Poc-L\'opez, Conor Heins, Christopher L. Buckley
Knitting a Markov blanket is hard when you are out-of-equilibrium: two examples in canonical nonequilibrium models
null
null
null
null
q-bio.NC cond-mat.dis-nn nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Bayesian theories of biological and brain function speculate that Markov blankets (a conditional independence separating a system from external states) play a key role for facilitating inference-like behaviour in living systems. Although it has been suggested that Markov blankets are commonplace in sparsely connected...
[ { "created": "Tue, 26 Jul 2022 14:06:37 GMT", "version": "v1" } ]
2022-07-27
[ [ "Aguilera", "Miguel", "" ], [ "Poc-López", "Ángel", "" ], [ "Heins", "Conor", "" ], [ "Buckley", "Christopher L.", "" ] ]
Bayesian theories of biological and brain function speculate that Markov blankets (a conditional independence separating a system from external states) play a key role for facilitating inference-like behaviour in living systems. Although it has been suggested that Markov blankets are commonplace in sparsely connected, ...
q-bio/0605007
Enrico Carlon
T. Heim, J. Klein Wolterink, E. Carlon, G. T. Barkema
Effective affinities in microarray data
8 pages, 6 figures
J. Phys.: Condens. Matter 18, S525(2006)
10.1088/0953-8984/18/18/S03
null
q-bio.BM cond-mat.soft physics.chem-ph
null
In the past couple of years several studies have shown that hybridization in Affymetrix DNA microarrays can be rather well understood on the basis of simple models of physical chemistry. In the majority of the cases a Langmuir isotherm was used to fit experimental data. Although there is a general consensus about thi...
[ { "created": "Thu, 4 May 2006 09:18:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Heim", "T.", "" ], [ "Wolterink", "J. Klein", "" ], [ "Carlon", "E.", "" ], [ "Barkema", "G. T.", "" ] ]
In the past couple of years several studies have shown that hybridization in Affymetrix DNA microarrays can be rather well understood on the basis of simple models of physical chemistry. In the majority of the cases a Langmuir isotherm was used to fit experimental data. Although there is a general consensus about this ...
2009.02707
Bryan M. Li
Bryan M. Li, Theoklitos Amvrosiadis, Nathalie Rochefort, Arno Onken
Synthesising Realistic Calcium Traces of Neuronal Populations Using GAN
null
null
null
null
q-bio.NC cs.AI cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Calcium imaging has become a powerful and popular technique to monitor the activity of large populations of neurons in vivo. However, for ethical considerations and despite recent technical developments, recordings are still constrained to a limited number of trials and animals. This limits the amount of data availab...
[ { "created": "Sun, 6 Sep 2020 10:58:11 GMT", "version": "v1" }, { "created": "Tue, 8 Sep 2020 03:58:43 GMT", "version": "v2" }, { "created": "Sat, 4 Feb 2023 11:40:48 GMT", "version": "v3" } ]
2023-02-07
[ [ "Li", "Bryan M.", "" ], [ "Amvrosiadis", "Theoklitos", "" ], [ "Rochefort", "Nathalie", "" ], [ "Onken", "Arno", "" ] ]
Calcium imaging has become a powerful and popular technique to monitor the activity of large populations of neurons in vivo. However, for ethical considerations and despite recent technical developments, recordings are still constrained to a limited number of trials and animals. This limits the amount of data available...
0905.3297
Armen Allahverdyan
Armen E. Allahverdyan and Chin-Kun Hu
Replicators in Fine-grained Environment: Adaptation and Polymorphism
4 pages, 2 figures
Phys. Rev. Lett., 102, 058102 (2009)
10.1103/PhysRevLett.102.058102
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Selection in a time-periodic environment is modeled via the two-player replicator dynamics. For sufficiently fast environmental changes, this is reduced to a multi-player replicator dynamics in a constant environment. The two-player terms correspond to the time-averaged payoffs, while the three and four-player terms ...
[ { "created": "Wed, 20 May 2009 12:46:56 GMT", "version": "v1" } ]
2015-05-13
[ [ "Allahverdyan", "Armen E.", "" ], [ "Hu", "Chin-Kun", "" ] ]
Selection in a time-periodic environment is modeled via the two-player replicator dynamics. For sufficiently fast environmental changes, this is reduced to a multi-player replicator dynamics in a constant environment. The two-player terms correspond to the time-averaged payoffs, while the three and four-player terms ar...
q-bio/0405021
Christel Kamp
Christel Kamp, Kim Christensen
Spectral Analysis of Protein-Protein Interactions in Drosophila melanogaster
9 pages RevTeX including 8 figures
null
10.1103/PhysRevE.71.041911
null
q-bio.MN cond-mat.stat-mech
null
Within a case study on the protein-protein interaction network (PIN) of Drosophila melanogaster we investigate the relation between the network's spectral properties and its structural features such as the prevalence of specific subgraphs or duplicate nodes as a result of its evolutionary history. The discrete part o...
[ { "created": "Wed, 26 May 2004 20:21:53 GMT", "version": "v1" } ]
2009-11-10
[ [ "Kamp", "Christel", "" ], [ "Christensen", "Kim", "" ] ]
Within a case study on the protein-protein interaction network (PIN) of Drosophila melanogaster we investigate the relation between the network's spectral properties and its structural features such as the prevalence of specific subgraphs or duplicate nodes as a result of its evolutionary history. The discrete part of ...
1107.3112
Michael Courtney
Joshua Daviscourt, Joshua Huertas, and Michael Courtney
An Assessment of Weight-Length Relationships for Muskellunge,Northern Pike, and Chain Pickerel In Carlander's Handbook of Freshwater Fishery Biology
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Carlander's Handbook of Freshwater Fishery Biology (1969) contains life history data from many species of freshwater fish found in North America. It has been cited over 1200 times and used to produce standard-weight curves for some species. Recent work (Cole-Fletcher et al. 2011) suggests Carlander (1969) contains nu...
[ { "created": "Fri, 15 Jul 2011 17:26:24 GMT", "version": "v1" } ]
2011-07-18
[ [ "Daviscourt", "Joshua", "" ], [ "Huertas", "Joshua", "" ], [ "Courtney", "Michael", "" ] ]
Carlander's Handbook of Freshwater Fishery Biology (1969) contains life history data from many species of freshwater fish found in North America. It has been cited over 1200 times and used to produce standard-weight curves for some species. Recent work (Cole-Fletcher et al. 2011) suggests Carlander (1969) contains nume...
1609.00779
Hongyu Miao
Shupeng Gui, Rui Chen, Liang Wu, Ji Liu, Hongyu Miao
A Scalable Algorithm for Structure Identification of Complex Gene Regulatory Network from Temporal Expression Data
14 pages, 2 figures, 2 tables
BMC Bioinformatics 2017 18:74
10.1186/s12859-017-1489-z
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: Gene regulatory interactions are of fundamental importance to various biological functions and processes. However, only a few previous computational studies have claimed success in revealing genome-wide regulatory landscapes from temporal gene expression data, especially for complex eukaryotes like human....
[ { "created": "Sat, 3 Sep 2016 01:52:19 GMT", "version": "v1" }, { "created": "Wed, 8 Feb 2017 15:22:24 GMT", "version": "v2" } ]
2017-02-09
[ [ "Gui", "Shupeng", "" ], [ "Chen", "Rui", "" ], [ "Wu", "Liang", "" ], [ "Liu", "Ji", "" ], [ "Miao", "Hongyu", "" ] ]
Motivation: Gene regulatory interactions are of fundamental importance to various biological functions and processes. However, only a few previous computational studies have claimed success in revealing genome-wide regulatory landscapes from temporal gene expression data, especially for complex eukaryotes like human. M...
2201.07233
Michelle Adams
Berk C. Ugurdag, Serena Akt\"urk, Michelle Adams
Meta-analysis for Discovering Which Genes are Differentially Expressed in Neuroinflammation
6 pages, 2 tables
null
null
null
q-bio.OT
http://creativecommons.org/publicdomain/zero/1.0/
Neuroinflammation is a significant aspect of many neurological diseases of Homo sapiens, and the genes that are differentially expressed in this process should be well understood to gather the nature of such diseases. We have conducted a meta-analysis (based on a combined adjusted P value and logFC scheme) of 6 multi...
[ { "created": "Tue, 18 Jan 2022 18:14:02 GMT", "version": "v1" } ]
2022-01-20
[ [ "Ugurdag", "Berk C.", "" ], [ "Aktürk", "Serena", "" ], [ "Adams", "Michelle", "" ] ]
Neuroinflammation is a significant aspect of many neurological diseases of Homo sapiens, and the genes that are differentially expressed in this process should be well understood to gather the nature of such diseases. We have conducted a meta-analysis (based on a combined adjusted P value and logFC scheme) of 6 multi-s...
2007.03902
Paul Hurtado
Paul J. Hurtado and Cameron Richards
Building Mean Field State Transition Models Using The Generalized Linear Chain Trick and Continuous Time Markov Chain Theory
27 pages, 4 figures, 2 ancillary files (R code for two figures). Journal of Biological Dynamics (2021)
null
10.1080/17513758.2021.1912418
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The well-known Linear Chain Trick (LCT) allows modelers to derive mean field ODEs that assume gamma (Erlang) distributed passage times, by transitioning individuals sequentially through a chain of sub-states. The time spent in these states is the sum of $k$ exponentially distributed random variables, and is thus gamm...
[ { "created": "Wed, 8 Jul 2020 05:02:42 GMT", "version": "v1" } ]
2021-05-25
[ [ "Hurtado", "Paul J.", "" ], [ "Richards", "Cameron", "" ] ]
The well-known Linear Chain Trick (LCT) allows modelers to derive mean field ODEs that assume gamma (Erlang) distributed passage times, by transitioning individuals sequentially through a chain of sub-states. The time spent in these states is the sum of $k$ exponentially distributed random variables, and is thus gamma ...
2010.01914
Patrick Krauss
Patrick Krauss and Achim Schilling
Towards a Cognitive Computational Neuroscience of Auditory Phantom Perceptions
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In order to gain a mechanistic understanding of how tinnitus emerges in the brain, we must build biologically plausible computational models that mimic both tinnitus development and perception, and test the tentative models with brain and behavioral experiments. With a special focus on tinnitus research, we review re...
[ { "created": "Mon, 5 Oct 2020 10:55:03 GMT", "version": "v1" } ]
2020-10-06
[ [ "Krauss", "Patrick", "" ], [ "Schilling", "Achim", "" ] ]
In order to gain a mechanistic understanding of how tinnitus emerges in the brain, we must build biologically plausible computational models that mimic both tinnitus development and perception, and test the tentative models with brain and behavioral experiments. With a special focus on tinnitus research, we review rece...
1607.07970
Krzysztof Bartoszek
Krzysztof Bartoszek, Sylvain Gl\'emin, Ingemar Kaj, Martin Lascoux
The Ornstein-Uhlenbeck process with migration: evolution with interactions
null
Journal of Theoretical Biology 429:35-45, 2017
10.1016/j.jtbi.2017.06.011
null
q-bio.PE math.PR stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Ornstein-Uhlenbeck (OU) process plays a major role in the analysis of the evolution of phenotypic traits along phylogenies. The standard OU process includes drift and stabilizing selection and assumes that species evolve independently. However, especially in plants, there is ample evidence of hybridization and in...
[ { "created": "Wed, 27 Jul 2016 06:10:03 GMT", "version": "v1" } ]
2020-11-23
[ [ "Bartoszek", "Krzysztof", "" ], [ "Glémin", "Sylvain", "" ], [ "Kaj", "Ingemar", "" ], [ "Lascoux", "Martin", "" ] ]
The Ornstein-Uhlenbeck (OU) process plays a major role in the analysis of the evolution of phenotypic traits along phylogenies. The standard OU process includes drift and stabilizing selection and assumes that species evolve independently. However, especially in plants, there is ample evidence of hybridization and intr...
1006.0018
Teruhiko Yoneyama
Teruhiko Yoneyama and Mukkai S. Krishnamoorthy
Simulating the Spread of Influenza Pandemic of 2009 Considering International Traffic
null
null
null
null
q-bio.PE physics.soc-ph
http://creativecommons.org/licenses/by/3.0/
Pandemics have the potential to cause immense disruption and damage to communities and societies. In this paper, we model the Influenza Pandemic of 2009. We propose a hybrid model to determine how the pandemic spreads through the world. The model considers both the SEIR-based model for local areas and the network mod...
[ { "created": "Tue, 11 May 2010 22:10:23 GMT", "version": "v1" } ]
2010-06-02
[ [ "Yoneyama", "Teruhiko", "" ], [ "Krishnamoorthy", "Mukkai S.", "" ] ]
Pandemics have the potential to cause immense disruption and damage to communities and societies. In this paper, we model the Influenza Pandemic of 2009. We propose a hybrid model to determine how the pandemic spreads through the world. The model considers both the SEIR-based model for local areas and the network model...
1111.4779
David Lukatsky
Ariel Afek, Itamar Sela, Noa Musa-Lempel, and David B. Lukatsky
Nonspecific transcription factor-DNA binding influences nucleosome occupancy in yeast
null
Biophysical Journal, Volume 101, Issue 10, 2465-2475 (2011)
10.1016/j.bpj.2011.10.012
null
q-bio.BM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantitative understanding of the principles regulating nucleosome occupancy on a genome-wide level is a central issue in eukaryotic genomics. Here, we address this question using budding yeast, Saccharomyces cerevisiae, as a model organism. We perform a genome-wide computational analysis of nonspecific transcription...
[ { "created": "Mon, 21 Nov 2011 07:57:40 GMT", "version": "v1" } ]
2011-11-22
[ [ "Afek", "Ariel", "" ], [ "Sela", "Itamar", "" ], [ "Musa-Lempel", "Noa", "" ], [ "Lukatsky", "David B.", "" ] ]
Quantitative understanding of the principles regulating nucleosome occupancy on a genome-wide level is a central issue in eukaryotic genomics. Here, we address this question using budding yeast, Saccharomyces cerevisiae, as a model organism. We perform a genome-wide computational analysis of nonspecific transcription f...
1603.00459
Renaud Bastien
Renaud Bastien, Yasmine Meroz
The Kinematics of Plant Nutation Reveals a Simple Relation Between Curvature and the Orientation of Differential Growth
null
null
10.1371/journal.pcbi.1005238
null
q-bio.TO
http://creativecommons.org/licenses/by/4.0/
Nutation is an oscillatory movement that plants display during their development. Despite its ubiquity among plants movements, the relation between the observed movement and the underlying biological mechanisms remains unclear. Here we show that the kinematics of the full organ in 3D gives a simple picture of plant n...
[ { "created": "Tue, 1 Mar 2016 11:41:46 GMT", "version": "v1" }, { "created": "Tue, 25 Oct 2016 15:10:41 GMT", "version": "v2" } ]
2017-02-08
[ [ "Bastien", "Renaud", "" ], [ "Meroz", "Yasmine", "" ] ]
Nutation is an oscillatory movement that plants display during their development. Despite its ubiquity among plants movements, the relation between the observed movement and the underlying biological mechanisms remains unclear. Here we show that the kinematics of the full organ in 3D gives a simple picture of plant nut...
2010.12065
Nabit Bajwa
Nabit Bajwa, Kedar Bajwa, Atif Rana, M. Faique Shakeel, Kashif Haqqi and Suleiman Ali Khan
A generalized deep learning model for multi-disease Chest X-Ray diagnostics
null
null
null
null
q-bio.QM cs.CV cs.LG eess.IV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the generalizability of deep convolutional neural network (CNN) on the task of disease classification from chest x-rays collected over multiple sites. We systematically train the model using datasets from three independent sites with different patient populations: National Institute of Health (NIH), St...
[ { "created": "Sat, 17 Oct 2020 18:57:40 GMT", "version": "v1" } ]
2020-10-26
[ [ "Bajwa", "Nabit", "" ], [ "Bajwa", "Kedar", "" ], [ "Rana", "Atif", "" ], [ "Shakeel", "M. Faique", "" ], [ "Haqqi", "Kashif", "" ], [ "Khan", "Suleiman Ali", "" ] ]
We investigate the generalizability of deep convolutional neural network (CNN) on the task of disease classification from chest x-rays collected over multiple sites. We systematically train the model using datasets from three independent sites with different patient populations: National Institute of Health (NIH), Stan...
1407.5105
Ankit Khambhati
Ankit Khambhati, Brian Litt, Danielle S. Bassett
Dynamic network drivers of seizure generation, propagation and termination in human epilepsy
7 pages, 5 figures; Supplementary Materials: 5 pages, 3 figures, 1 table
null
10.1371/journal.pcbi.1004608
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Drug-resistant epilepsy is traditionally characterized by pathologic cortical tissue comprised of seizure-initiating `foci'. These `foci' are thought to be embedded within an epileptic network whose functional architecture dynamically reorganizes during seizures through synchronous and asynchronous neurophysiologic p...
[ { "created": "Fri, 18 Jul 2014 20:12:16 GMT", "version": "v1" } ]
2016-02-17
[ [ "Khambhati", "Ankit", "" ], [ "Litt", "Brian", "" ], [ "Bassett", "Danielle S.", "" ] ]
Drug-resistant epilepsy is traditionally characterized by pathologic cortical tissue comprised of seizure-initiating `foci'. These `foci' are thought to be embedded within an epileptic network whose functional architecture dynamically reorganizes during seizures through synchronous and asynchronous neurophysiologic pro...
q-bio/0703006
Thierry Rabilloud
Mireille Chevallet (BBSI), H\'el\`ene Diemer (IPHC), Alain van Dorsselaer (IPHC), Christian Villiers, Thierry Rabilloud (BBSI)
Toward a better analysis of secreted proteins: the example of the myeloid cells secretome
sous presse sans Proteomics
null
null
null
q-bio.GN
null
The analysis of secreted proteins represents a challenge for current proteomics techniques. Proteins are usually secreted at low concentrations in the culture media, which makes their recovery difficult. In addition, culture media are rich in salts and other compounds interfering with most proteomics techniques, whic...
[ { "created": "Fri, 2 Mar 2007 10:35:11 GMT", "version": "v1" } ]
2016-08-14
[ [ "Chevallet", "Mireille", "", "BBSI" ], [ "Diemer", "Hélène", "", "IPHC" ], [ "van Dorsselaer", "Alain", "", "IPHC" ], [ "Villiers", "Christian", "", "BBSI" ], [ "Rabilloud", "Thierry", "", "BBSI" ] ]
The analysis of secreted proteins represents a challenge for current proteomics techniques. Proteins are usually secreted at low concentrations in the culture media, which makes their recovery difficult. In addition, culture media are rich in salts and other compounds interfering with most proteomics techniques, which ...
2403.18666
Kieren Sharma
Kieren Sharma, Lucia Marucci, Zahraa S. Abdallah
FluxGAT: Integrating Flux Sampling with Graph Neural Networks for Unbiased Gene Essentiality Classification
null
null
null
null
q-bio.QM q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gene essentiality, the necessity of a specific gene for the survival of an organism, is crucial to our understanding of cellular processes and identifying drug targets. Experimental determination of gene essentiality requires large growth screens that are time-consuming and expensive, motivating the development of in...
[ { "created": "Wed, 27 Mar 2024 15:09:46 GMT", "version": "v1" }, { "created": "Thu, 28 Mar 2024 14:52:36 GMT", "version": "v2" } ]
2024-03-29
[ [ "Sharma", "Kieren", "" ], [ "Marucci", "Lucia", "" ], [ "Abdallah", "Zahraa S.", "" ] ]
Gene essentiality, the necessity of a specific gene for the survival of an organism, is crucial to our understanding of cellular processes and identifying drug targets. Experimental determination of gene essentiality requires large growth screens that are time-consuming and expensive, motivating the development of in-s...
2407.13514
Anass B. El-Yaagoubi
Anass B. El-Yaagoubi and Moo K. Chung and Hernando Ombao
Topological Analysis of Seizure-Induced Changes in Brain Hierarchy Through Effective Connectivity
null
null
null
null
q-bio.NC stat.ME
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Traditional Topological Data Analysis (TDA) methods, such as Persistent Homology (PH), rely on distance measures (e.g., cross-correlation, partial correlation, coherence, and partial coherence) that are symmetric by definition. While useful for studying topological patterns in functional brain connectivity, the main ...
[ { "created": "Thu, 18 Jul 2024 13:45:08 GMT", "version": "v1" } ]
2024-07-19
[ [ "El-Yaagoubi", "Anass B.", "" ], [ "Chung", "Moo K.", "" ], [ "Ombao", "Hernando", "" ] ]
Traditional Topological Data Analysis (TDA) methods, such as Persistent Homology (PH), rely on distance measures (e.g., cross-correlation, partial correlation, coherence, and partial coherence) that are symmetric by definition. While useful for studying topological patterns in functional brain connectivity, the main li...
2008.12104
Mai He
Mai He (1), Priya Skaria (1), Kasey Kreutz (1), Ling Chen (2), Ian Hagemann (1), Ebony B. Carter (3), Indira U. Mysorekar (1,3), D Michael Nelson (3), John Pfeifer (1), Louis P. Dehner (1) ((1) Department of Pathology & Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA (2) Di...
Histopathology of Third Trimester Placenta from SARS-CoV-2-Positive Women
Two tables
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background: This study aims to investigate whether maternal SARS-CoV-2 status affect placental pathology. Methods: A retrospective case-control study was conducted by reviewing charts and slides of placentas between April 1 to July 24, 2020. Clinical history of COVID-19 were searched in Pathology Database (CoPath). C...
[ { "created": "Wed, 5 Aug 2020 20:35:52 GMT", "version": "v1" } ]
2020-08-28
[ [ "He", "Mai", "" ], [ "Skaria", "Priya", "" ], [ "Kreutz", "Kasey", "" ], [ "Chen", "Ling", "" ], [ "Hagemann", "Ian", "" ], [ "Carter", "Ebony B.", "" ], [ "Mysorekar", "Indira U.", "" ], [ "Nelson"...
Background: This study aims to investigate whether maternal SARS-CoV-2 status affect placental pathology. Methods: A retrospective case-control study was conducted by reviewing charts and slides of placentas between April 1 to July 24, 2020. Clinical history of COVID-19 were searched in Pathology Database (CoPath). Con...
0912.5409
William Bialek
Gasper Tkacik, Elad Schneidman, Michael J. Berry II and William Bialek
Spin glass models for a network of real neurons
This is an extended version of arXiv:q-bio.NC/0611072
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Ising models with pairwise interactions are the least structured, or maximum-entropy, probability distributions that exactly reproduce measured pairwise correlations between spins. Here we use this equivalence to construct Ising models that describe the correlated spiking activity of populations of 40 neurons in the ...
[ { "created": "Wed, 30 Dec 2009 02:59:05 GMT", "version": "v1" } ]
2009-12-31
[ [ "Tkacik", "Gasper", "" ], [ "Schneidman", "Elad", "" ], [ "Berry", "Michael J.", "II" ], [ "Bialek", "William", "" ] ]
Ising models with pairwise interactions are the least structured, or maximum-entropy, probability distributions that exactly reproduce measured pairwise correlations between spins. Here we use this equivalence to construct Ising models that describe the correlated spiking activity of populations of 40 neurons in the sa...
q-bio/0310014
Balint Szabo
B. Szabo, Zs. Kornyei, J. Zach, D. Selmeczi, G. Csucs, A. Czirok, T. Vicsek
Auto-reverse nuclear migration in bipolar mammalian cells on micropatterned surfaces
Figures and supplemental videos: http://esr.elte.hu/nuclearmotility
Cell Motility and the Cytoskeleton 59(1), 38-49 (2004)
null
null
q-bio.CB
null
A novel assay based on micropatterning and time-lapse microscopy has been developed for the study of nuclear migration dynamics in cultured mammalian cells. When cultured on 10-20 um wide adhesive stripes, the motility of C6 glioma and primary mouse fibroblast cells is diminished. Nevertheless, nuclei perform an unex...
[ { "created": "Tue, 14 Oct 2003 09:18:27 GMT", "version": "v1" }, { "created": "Sun, 9 May 2004 13:12:21 GMT", "version": "v2" }, { "created": "Tue, 17 Aug 2004 11:32:07 GMT", "version": "v3" } ]
2009-09-29
[ [ "Szabo", "B.", "" ], [ "Kornyei", "Zs.", "" ], [ "Zach", "J.", "" ], [ "Selmeczi", "D.", "" ], [ "Csucs", "G.", "" ], [ "Czirok", "A.", "" ], [ "Vicsek", "T.", "" ] ]
A novel assay based on micropatterning and time-lapse microscopy has been developed for the study of nuclear migration dynamics in cultured mammalian cells. When cultured on 10-20 um wide adhesive stripes, the motility of C6 glioma and primary mouse fibroblast cells is diminished. Nevertheless, nuclei perform an unexpe...
1602.01730
Robert Wilkinson mr
Robert R. Wilkinson, Frank G. Ball, Kieran J. Sharkey
The deterministic Kermack-McKendrick model bounds the general stochastic epidemic
null
J. Appl. Probab. Vol. 53, No. 4 (2016)
null
null
q-bio.PE cond-mat.stat-mech math.PR physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We prove that, for Poisson transmission and recovery processes, the classic Susceptible $\to$ Infected $\to$ Recovered (SIR) epidemic model of Kermack and McKendrick provides, for any given time $t>0$, a strict lower bound on the expected number of suscpetibles and a strict upper bound on the expected number of recov...
[ { "created": "Thu, 4 Feb 2016 16:26:19 GMT", "version": "v1" }, { "created": "Mon, 21 Mar 2016 11:54:41 GMT", "version": "v2" }, { "created": "Fri, 10 Feb 2017 14:10:25 GMT", "version": "v3" } ]
2017-02-13
[ [ "Wilkinson", "Robert R.", "" ], [ "Ball", "Frank G.", "" ], [ "Sharkey", "Kieran J.", "" ] ]
We prove that, for Poisson transmission and recovery processes, the classic Susceptible $\to$ Infected $\to$ Recovered (SIR) epidemic model of Kermack and McKendrick provides, for any given time $t>0$, a strict lower bound on the expected number of suscpetibles and a strict upper bound on the expected number of recover...
2205.03635
Laurent Perrinet
Jean-Nicolas J\'er\'emie, Laurent U Perrinet
Ultrafast Image Categorization in Biology and Neural Models
null
null
10.3390/vision7020029
null
q-bio.NC cs.CV
http://creativecommons.org/licenses/by/4.0/
Humans are able to categorize images very efficiently, in particular to detect the presence of an animal very quickly. Recently, deep learning algorithms based on convolutional neural networks (CNNs) have achieved higher than human accuracy for a wide range of visual categorization tasks. However, the tasks on which ...
[ { "created": "Sat, 7 May 2022 11:19:40 GMT", "version": "v1" }, { "created": "Thu, 12 May 2022 14:40:25 GMT", "version": "v2" }, { "created": "Tue, 11 Oct 2022 12:01:17 GMT", "version": "v3" }, { "created": "Wed, 31 May 2023 05:30:51 GMT", "version": "v4" } ]
2023-06-01
[ [ "Jérémie", "Jean-Nicolas", "" ], [ "Perrinet", "Laurent U", "" ] ]
Humans are able to categorize images very efficiently, in particular to detect the presence of an animal very quickly. Recently, deep learning algorithms based on convolutional neural networks (CNNs) have achieved higher than human accuracy for a wide range of visual categorization tasks. However, the tasks on which th...
2311.04880
Christopher Miles
Christopher E. Miles, Scott A. McKinley, Fangyuan Ding, Richard B. Lehoucq
Inferring stochastic rates from heterogeneous snapshots of particle positions
33 pages, 6 figures
Bulletin of Mathematical Biology 86, 74 (2024)
10.1007/s11538-024-01301-4
null
q-bio.SC math.ST physics.bio-ph stat.AP stat.TH
http://creativecommons.org/licenses/by/4.0/
Many imaging techniques for biological systems -- like fixation of cells coupled with fluorescence microscopy -- provide sharp spatial resolution in reporting locations of individuals at a single moment in time but also destroy the dynamics they intend to capture. These snapshot observations contain no information ab...
[ { "created": "Wed, 8 Nov 2023 18:36:41 GMT", "version": "v1" } ]
2024-05-15
[ [ "Miles", "Christopher E.", "" ], [ "McKinley", "Scott A.", "" ], [ "Ding", "Fangyuan", "" ], [ "Lehoucq", "Richard B.", "" ] ]
Many imaging techniques for biological systems -- like fixation of cells coupled with fluorescence microscopy -- provide sharp spatial resolution in reporting locations of individuals at a single moment in time but also destroy the dynamics they intend to capture. These snapshot observations contain no information abou...
1707.00039
Dan Willard
Dan E. Willard
Implications of the Trivers-Willard Sex Ratio Hypothesis for Avian Species and Poultry Production, And a Summary of the Historic Context of this Research
A 30-minute invited talk summarizing the contents of this article was presented on June 18, 2017 at the Binghamton NEEPS-2017 Conference. The Version-1 June 27 (2017) draft of this paper was similar to the 30-minute talk I gave at Binghamton University, and it was disseminated nine days after this talk. This se...
null
null
null
q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
At a theoretical level, the Trivers-Willard Sex Ratio Hypothesis applies to both avian species and mammals. This article, however, conjectures that at the statistical level, sex ratio effects are likely to produce sharper numerical variations among birds than among mammals. We explain this greater statistical variati...
[ { "created": "Tue, 27 Jun 2017 21:50:22 GMT", "version": "v1" }, { "created": "Wed, 30 Aug 2017 16:23:57 GMT", "version": "v2" } ]
2017-08-31
[ [ "Willard", "Dan E.", "" ] ]
At a theoretical level, the Trivers-Willard Sex Ratio Hypothesis applies to both avian species and mammals. This article, however, conjectures that at the statistical level, sex ratio effects are likely to produce sharper numerical variations among birds than among mammals. We explain this greater statistical variation...
1705.02380
Dwayne John
Dwayne John
A Nonconventional Analysis of CD$4^{+}$ and CD$8^{+}$ T Cell Responses During and After Acute Lymphocytic Choriomeningitis Virus Infection
3 Figures, 1 table
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A mathematical model from a previous work was re-fitted and analyzed for experimental data regarding the cellular immune response to the lymphocytic choriomeningitis virus. Specifically, the $CD8^{+}$ T cell response to six MHC class I-restricted epitopes (GP* and NP*) and $CD4^{+}$ T cell responses to two MHC class ...
[ { "created": "Fri, 5 May 2017 19:53:34 GMT", "version": "v1" } ]
2017-05-09
[ [ "John", "Dwayne", "" ] ]
A mathematical model from a previous work was re-fitted and analyzed for experimental data regarding the cellular immune response to the lymphocytic choriomeningitis virus. Specifically, the $CD8^{+}$ T cell response to six MHC class I-restricted epitopes (GP* and NP*) and $CD4^{+}$ T cell responses to two MHC class II...
1805.03602
Surya Saha
Prashant S. Hosmani, Teresa Shippy, Sherry Miller, Joshua B. Benoit, Monica Munoz-Torres, Mirella Flores, Lukas A. Mueller, Helen Wiersma-Koch, Tom D'elia, Susan J. Brown and Surya Saha
A quick guide for student-driven community genome annotation
null
null
10.1371/journal.pcbi.1006682
null
q-bio.GN
http://creativecommons.org/publicdomain/zero/1.0/
High quality gene models are necessary to expand the molecular and genetic tools available for a target organism, but these are available for only a handful of model organisms that have undergone extensive curation and experimental validation over the course of many years. The majority of gene models present in biolo...
[ { "created": "Wed, 9 May 2018 16:01:11 GMT", "version": "v1" }, { "created": "Tue, 16 Oct 2018 10:04:57 GMT", "version": "v2" } ]
2019-06-19
[ [ "Hosmani", "Prashant S.", "" ], [ "Shippy", "Teresa", "" ], [ "Miller", "Sherry", "" ], [ "Benoit", "Joshua B.", "" ], [ "Munoz-Torres", "Monica", "" ], [ "Flores", "Mirella", "" ], [ "Mueller", "Lukas A.", ...
High quality gene models are necessary to expand the molecular and genetic tools available for a target organism, but these are available for only a handful of model organisms that have undergone extensive curation and experimental validation over the course of many years. The majority of gene models present in biologi...
2011.05321
Jean-Fran\c{c}ois Cornet
B\'erang\`ere Farges, C\'eline Laroche, Jean-Fran\c{c}ois Cornet and Claude-Gilles Dussap
Spectral Kinetic Modeling and Long-term Behavior Assessment of Arthrospira platensis Growth in Photobioreactor under Red (620 nm) Light Illumination
null
Biotechnology Progress, 2009, 25, 151-162
10.1021/bp.95
null
q-bio.OT physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ability to cultivate the cyanobacterium Arhtrospira platensis in artificially lightened photobioreactors using high energetic efficiency (quasi-monochromatic) red LED was investigated. In order to reach the same maximal productivities as with the polychromatic lightening control conditions (red + blue, P/2e- = 1....
[ { "created": "Sat, 7 Nov 2020 14:47:21 GMT", "version": "v1" } ]
2020-11-11
[ [ "Farges", "Bérangère", "" ], [ "Laroche", "Céline", "" ], [ "Cornet", "Jean-François", "" ], [ "Dussap", "Claude-Gilles", "" ] ]
The ability to cultivate the cyanobacterium Arhtrospira platensis in artificially lightened photobioreactors using high energetic efficiency (quasi-monochromatic) red LED was investigated. In order to reach the same maximal productivities as with the polychromatic lightening control conditions (red + blue, P/2e- = 1.27...
q-bio/0604014
Mariano Cadoni
M. Cadoni, R. De Leo, G. Gaeta
A composite model for DNA torsion dynamics
29 pages
Phys. Rev. E75 (2007), 021919
10.1103/PhysRevE.75.021919
null
q-bio.BM physics.bio-ph
null
DNA torsion dynamics is essential in the transcription process; a simple model for it, in reasonable agreement with experimental observations, has been proposed by Yakushevich (Y) and developed by several authors; in this, the DNA subunits made of a nucleoside and the attached nitrogen bases are described by a single...
[ { "created": "Wed, 12 Apr 2006 13:42:47 GMT", "version": "v1" }, { "created": "Thu, 20 Apr 2006 17:33:18 GMT", "version": "v2" } ]
2009-11-13
[ [ "Cadoni", "M.", "" ], [ "De Leo", "R.", "" ], [ "Gaeta", "G.", "" ] ]
DNA torsion dynamics is essential in the transcription process; a simple model for it, in reasonable agreement with experimental observations, has been proposed by Yakushevich (Y) and developed by several authors; in this, the DNA subunits made of a nucleoside and the attached nitrogen bases are described by a single d...
2403.03231
Mikhail Dozmorov
Brydon P. G. Wall, My Nguyen, J. Chuck Harrell, Mikhail G. Dozmorov
Machine and deep learning methods for predicting 3D genome organization
Systematic review, one figure, three tables, 29 pages
null
null
null
q-bio.GN cs.LG
http://creativecommons.org/licenses/by/4.0/
Three-Dimensional (3D) chromatin interactions, such as enhancer-promoter interactions (EPIs), loops, Topologically Associating Domains (TADs), and A/B compartments play critical roles in a wide range of cellular processes by regulating gene expression. Recent development of chromatin conformation capture technologies...
[ { "created": "Mon, 4 Mar 2024 19:04:41 GMT", "version": "v1" } ]
2024-03-07
[ [ "Wall", "Brydon P. G.", "" ], [ "Nguyen", "My", "" ], [ "Harrell", "J. Chuck", "" ], [ "Dozmorov", "Mikhail G.", "" ] ]
Three-Dimensional (3D) chromatin interactions, such as enhancer-promoter interactions (EPIs), loops, Topologically Associating Domains (TADs), and A/B compartments play critical roles in a wide range of cellular processes by regulating gene expression. Recent development of chromatin conformation capture technologies h...
1111.4785
Ivo Sbalzarini
Christian L. Muller, Rajesh Ramaswamy, Ivo F. Sbalzarini
Global parameter identification of stochastic reaction networks from single trajectories
Article in print as a book chapter in Springer's "Advances in Systems Biology"
null
null
null
q-bio.MN cs.CE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the problem of inferring the unknown parameters of a stochastic biochemical network model from a single measured time-course of the concentration of some of the involved species. Such measurements are available, e.g., from live-cell fluorescence microscopy in image-based systems biology. In addition, fluc...
[ { "created": "Mon, 21 Nov 2011 08:30:29 GMT", "version": "v1" } ]
2011-11-22
[ [ "Muller", "Christian L.", "" ], [ "Ramaswamy", "Rajesh", "" ], [ "Sbalzarini", "Ivo F.", "" ] ]
We consider the problem of inferring the unknown parameters of a stochastic biochemical network model from a single measured time-course of the concentration of some of the involved species. Such measurements are available, e.g., from live-cell fluorescence microscopy in image-based systems biology. In addition, fluctu...
2407.02440
Jose Fontanari
Jos\'e F. Fontanari and Mauro Santos
Solving the prisoner's dilemma trap in Hamilton's model of temporarily formed random groups
null
null
null
null
q-bio.PE nlin.AO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Explaining the evolution of cooperation in the strong altruism scenario, where a cooperator does not benefit from her contribution to the public goods, is a challenging problem that requires positive assortment among cooperators (i.e., cooperators must tend to associate with other cooperators) or punishment of defect...
[ { "created": "Tue, 2 Jul 2024 17:15:34 GMT", "version": "v1" } ]
2024-07-03
[ [ "Fontanari", "José F.", "" ], [ "Santos", "Mauro", "" ] ]
Explaining the evolution of cooperation in the strong altruism scenario, where a cooperator does not benefit from her contribution to the public goods, is a challenging problem that requires positive assortment among cooperators (i.e., cooperators must tend to associate with other cooperators) or punishment of defector...
2101.05563
Giulia Laura Celora
Giulia L. Celora, Helen M. Byrne, Christos Zois, Panos G. Kevrekidis
Phenotypic variation modulates the growth dynamics and response to radiotherapy of solid tumours under normoxia and hypoxia
null
null
null
null
q-bio.CB nlin.PS physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In cancer, treatment failure and disease recurrence have been associated with small subpopulations of cancer cells with a stem-like phenotype. In this paper, we develop and investigate a phenotype-structured model of solid tumour growth in which cells are structured by a stemness level, which varies continuously betw...
[ { "created": "Thu, 14 Jan 2021 12:10:53 GMT", "version": "v1" } ]
2021-01-15
[ [ "Celora", "Giulia L.", "" ], [ "Byrne", "Helen M.", "" ], [ "Zois", "Christos", "" ], [ "Kevrekidis", "Panos G.", "" ] ]
In cancer, treatment failure and disease recurrence have been associated with small subpopulations of cancer cells with a stem-like phenotype. In this paper, we develop and investigate a phenotype-structured model of solid tumour growth in which cells are structured by a stemness level, which varies continuously betwee...
0707.2300
Hiroshi Fujisaki
Hiroshi Fujisaki, John E. Straub
Vibrational energy relaxation (VER) of isotopically labeled amide I modes in cytochrome c: Theoretical investigation of VER rates and pathways
10 pages, 5 figures, to be published in J. Phys. Chem. B
null
null
null
q-bio.BM
null
Using a time-dependent perturbation theory, vibrational energy relaxation (VER) of isotopically labeled amide I modes in cytochrome c solvated with water is investigated. Contributions to the VER are decomposed into two contributions from the protein and water. The VER pathways are visualized using radial and angular...
[ { "created": "Mon, 16 Jul 2007 11:04:29 GMT", "version": "v1" } ]
2007-07-17
[ [ "Fujisaki", "Hiroshi", "" ], [ "Straub", "John E.", "" ] ]
Using a time-dependent perturbation theory, vibrational energy relaxation (VER) of isotopically labeled amide I modes in cytochrome c solvated with water is investigated. Contributions to the VER are decomposed into two contributions from the protein and water. The VER pathways are visualized using radial and angular e...
0803.0465
Giulia Menconi
Giulia Menconi, Vieri Benci, Marcello Buiatti
Data compression and genomes: a two dimensional life domain map
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We define the complexity of DNA sequences as the information content per nucleotide, calculated by means of some Lempel-Ziv data compression algorithm. It is possible to use the statistics of the complexity values of the functional regions of different complete genomes to distinguish among genomes of different domain...
[ { "created": "Tue, 4 Mar 2008 14:47:36 GMT", "version": "v1" } ]
2008-03-05
[ [ "Menconi", "Giulia", "" ], [ "Benci", "Vieri", "" ], [ "Buiatti", "Marcello", "" ] ]
We define the complexity of DNA sequences as the information content per nucleotide, calculated by means of some Lempel-Ziv data compression algorithm. It is possible to use the statistics of the complexity values of the functional regions of different complete genomes to distinguish among genomes of different domains ...
1810.05823
Delfim F. M. Torres
Ana P. Lemos-Paiao, Cristiana J. Silva, Delfim F. M. Torres
A cholera mathematical model with vaccination and the biggest outbreak of world's history
This is a preprint of a paper whose final and definite form is with 'AIMS Mathematics', available in open access from [http://www.aimspress.com/journal/Math]. Submitted 7-July-2018; Revised 14-Sept-2018; Accepted 12-Oct-2018. arXiv admin note: substantial text overlap with arXiv:1611.02195
AIMS Mathematics 3 (2018), no. 4, 448--463
10.3934/Math.2018.4.448
null
q-bio.PE math.CA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose and analyse a mathematical model for cholera considering vaccination. We show that the model is epidemiologically and mathematically well posed and prove the existence and uniqueness of disease-free and endemic equilibrium points. The basic reproduction number is determined and the local asymptotic stabili...
[ { "created": "Sat, 13 Oct 2018 08:48:27 GMT", "version": "v1" } ]
2018-10-22
[ [ "Lemos-Paiao", "Ana P.", "" ], [ "Silva", "Cristiana J.", "" ], [ "Torres", "Delfim F. M.", "" ] ]
We propose and analyse a mathematical model for cholera considering vaccination. We show that the model is epidemiologically and mathematically well posed and prove the existence and uniqueness of disease-free and endemic equilibrium points. The basic reproduction number is determined and the local asymptotic stability...
1401.1129
Brent Pedersen
Brent S. Pedersen, Kenneth Eyring, Subhajyoti De, Ivana V. Yang and David A. Schwartz
Fast and accurate alignment of long bisulfite-seq reads
null
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Summary: Longer sequencing reads, with at least 200 bases per template are now common. While traditional aligners have adopted new strategies to improve the mapping of longer reads, aligners specific to bisulfite-sequencing were optimized when much shorter reads were the norm. We sought to perform the first compariso...
[ { "created": "Mon, 6 Jan 2014 16:08:04 GMT", "version": "v1" }, { "created": "Tue, 13 May 2014 15:02:10 GMT", "version": "v2" } ]
2014-05-14
[ [ "Pedersen", "Brent S.", "" ], [ "Eyring", "Kenneth", "" ], [ "De", "Subhajyoti", "" ], [ "Yang", "Ivana V.", "" ], [ "Schwartz", "David A.", "" ] ]
Summary: Longer sequencing reads, with at least 200 bases per template are now common. While traditional aligners have adopted new strategies to improve the mapping of longer reads, aligners specific to bisulfite-sequencing were optimized when much shorter reads were the norm. We sought to perform the first comparison ...
2302.11438
Georgiy Karev
Georgiy Karev
On the scope of applicability of the models of Darwinian dynamics
39 pages, 11 figures
null
null
null
q-bio.PE
http://creativecommons.org/publicdomain/zero/1.0/
In their well-known textbook (Vincent & Brown, 2005), Vincent and Brown suggested an attractive approach for studying evolutionary dynamics of populations that are heterogeneous with respect to some strategy that affects the fitness of individuals in the population. The authors developed a theory, whose goal was to e...
[ { "created": "Wed, 22 Feb 2023 15:22:38 GMT", "version": "v1" } ]
2023-02-23
[ [ "Karev", "Georgiy", "" ] ]
In their well-known textbook (Vincent & Brown, 2005), Vincent and Brown suggested an attractive approach for studying evolutionary dynamics of populations that are heterogeneous with respect to some strategy that affects the fitness of individuals in the population. The authors developed a theory, whose goal was to exp...
0808.1283
Razvan Radulescu M.D.
Razvan Tudor Radulescu
Peptide strings clues to the genesis and treatment of rheumatoid arthritis: rebuilding self-protective immunity amid fungal ruins
15 pages, 3 figures, 3 tables
null
null
null
q-bio.SC q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A recent application of the peptide strings concept has yielded novel perceptions on cell growth regulation, for instance that of oncoprotein metastasis. Here, this interdisciplinary approach at the boundary between physics and biology has been applied to gain a more profound insight into rheumatoid arthritis. As a r...
[ { "created": "Sun, 10 Aug 2008 23:03:29 GMT", "version": "v1" } ]
2008-08-12
[ [ "Radulescu", "Razvan Tudor", "" ] ]
A recent application of the peptide strings concept has yielded novel perceptions on cell growth regulation, for instance that of oncoprotein metastasis. Here, this interdisciplinary approach at the boundary between physics and biology has been applied to gain a more profound insight into rheumatoid arthritis. As a res...
1709.03630
Alex McAvoy
Alex McAvoy, Nicolas Fraiman, Christoph Hauert, John Wakeley, Martin A. Nowak
Public goods games in populations with fluctuating size
21 pages; final version
null
10.1016/j.tpb.2018.01.004
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many mathematical frameworks of evolutionary game dynamics assume that the total population size is constant and that selection affects only the relative frequency of strategies. Here, we consider evolutionary game dynamics in an extended Wright-Fisher process with variable population size. In such a scenario, it is ...
[ { "created": "Tue, 12 Sep 2017 00:10:01 GMT", "version": "v1" }, { "created": "Thu, 15 Feb 2018 04:37:42 GMT", "version": "v2" } ]
2018-02-16
[ [ "McAvoy", "Alex", "" ], [ "Fraiman", "Nicolas", "" ], [ "Hauert", "Christoph", "" ], [ "Wakeley", "John", "" ], [ "Nowak", "Martin A.", "" ] ]
Many mathematical frameworks of evolutionary game dynamics assume that the total population size is constant and that selection affects only the relative frequency of strategies. Here, we consider evolutionary game dynamics in an extended Wright-Fisher process with variable population size. In such a scenario, it is po...
1306.5355
Davit Potoyan
D. A. Potoyan and P. G. Wolynes
On the dephasing of genetic oscillations
null
null
10.1073/pnas.1323433111
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The digital nature of genes combined with the associated low copy numbers of proteins regulating them is a significant source of stochasticity, which affects the phase of biochemical oscillations. We provide a theoretical framework for understanding the dephasing evolution of genetic oscillations by combining the phe...
[ { "created": "Sat, 22 Jun 2013 21:26:38 GMT", "version": "v1" } ]
2014-06-03
[ [ "Potoyan", "D. A.", "" ], [ "Wolynes", "P. G.", "" ] ]
The digital nature of genes combined with the associated low copy numbers of proteins regulating them is a significant source of stochasticity, which affects the phase of biochemical oscillations. We provide a theoretical framework for understanding the dephasing evolution of genetic oscillations by combining the pheno...
2206.06035
Ulderico Fugacci
Luca Gagliardi, Andrea Raffo, Ulderico Fugacci, Silvia Biasotti, Walter Rocchia, Hao Huang, Boulbaba Ben Amor, Yi Fang, Yuanyuan Zhang, Xiao Wang, Charles Christoffer, Daisuke Kihara, Apostolos Axenopoulos, Stelios Mylonas, Petros Daras
SHREC 2022: Protein-ligand binding site recognition
null
Computers & Graphics 107 (2022) 20-31
10.1016/j.cag.2022.07.005
null
q-bio.BM
http://creativecommons.org/licenses/by-nc-nd/4.0/
This paper presents the methods that have participated in the SHREC 2022 contest on protein-ligand binding site recognition. The prediction of protein-ligand binding regions is an active research domain in computational biophysics and structural biology and plays a relevant role for molecular docking and drug design....
[ { "created": "Mon, 13 Jun 2022 10:43:32 GMT", "version": "v1" }, { "created": "Tue, 14 Jun 2022 14:48:35 GMT", "version": "v2" }, { "created": "Sat, 2 Jul 2022 08:06:13 GMT", "version": "v3" }, { "created": "Wed, 24 Aug 2022 13:06:46 GMT", "version": "v4" } ]
2023-08-10
[ [ "Gagliardi", "Luca", "" ], [ "Raffo", "Andrea", "" ], [ "Fugacci", "Ulderico", "" ], [ "Biasotti", "Silvia", "" ], [ "Rocchia", "Walter", "" ], [ "Huang", "Hao", "" ], [ "Amor", "Boulbaba Ben", "" ], [ ...
This paper presents the methods that have participated in the SHREC 2022 contest on protein-ligand binding site recognition. The prediction of protein-ligand binding regions is an active research domain in computational biophysics and structural biology and plays a relevant role for molecular docking and drug design. T...
1608.00535
David Murrugarra
David Murrugarra, Jacob Miller, and Alex Mueller
Estimating Propensity Parameters using Google PageRank and Genetic Algorithms
20 pages, 4 figures, 2 tables
Frontiers in Neuroscience, 10:513, 2016
10.3389/fnins.2016.00513
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Stochastic Boolean networks, or more generally, stochastic discrete networks, are an important class of computational models for molecular interaction networks. The stochasticity stems from the updating schedule. Standard updating schedules include the synchronous update, where all the nodes are updated at the same t...
[ { "created": "Mon, 1 Aug 2016 19:26:13 GMT", "version": "v1" }, { "created": "Mon, 3 Oct 2016 15:36:52 GMT", "version": "v2" }, { "created": "Mon, 17 Oct 2016 17:22:35 GMT", "version": "v3" } ]
2024-07-09
[ [ "Murrugarra", "David", "" ], [ "Miller", "Jacob", "" ], [ "Mueller", "Alex", "" ] ]
Stochastic Boolean networks, or more generally, stochastic discrete networks, are an important class of computational models for molecular interaction networks. The stochasticity stems from the updating schedule. Standard updating schedules include the synchronous update, where all the nodes are updated at the same tim...
2009.01574
Attila Szolnoki
Marcell Blahota, Istvan Blahota, and Attila Szolnoki
Equal partners do better in defensive alliances
7 two-column pages, 6 figures, accepted for publication in EPL
EPL 131 (2020) 58002
10.1209/0295-5075/131/58002
null
q-bio.PE cond-mat.stat-mech cs.GT nlin.PS physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cyclic dominance offers not just a way to maintain biodiversity, but also serves as a sort of defensive alliance against an external invader. Interestingly, a new level of competition can be observed when two cyclic loops are present. Here the inner invasion speed plays a decisive role on the evolutionary outcome, be...
[ { "created": "Thu, 3 Sep 2020 10:41:06 GMT", "version": "v1" } ]
2020-09-21
[ [ "Blahota", "Marcell", "" ], [ "Blahota", "Istvan", "" ], [ "Szolnoki", "Attila", "" ] ]
Cyclic dominance offers not just a way to maintain biodiversity, but also serves as a sort of defensive alliance against an external invader. Interestingly, a new level of competition can be observed when two cyclic loops are present. Here the inner invasion speed plays a decisive role on the evolutionary outcome, beca...
2301.04471
Umberto Michelucci
Francesca Venturini, Michela Sperti, Umberto Michelucci, Arnaud Gucciardi, Vanessa M. Martos, Marco A. Deriu
Dataset of Fluorescence Spectra and Chemical Parameters of Olive Oils
null
null
null
null
q-bio.QM cs.LG
http://creativecommons.org/licenses/by-nc-nd/4.0/
This dataset encompasses fluorescence spectra and chemical parameters of 24 olive oil samples from the 2019-2020 harvest provided by the producer Conde de Benalua, Granada, Spain. The oils are characterized by different qualities: 10 extra virgin olive oil (EVOO), 8 virgin olive oil (VOO), and 6 lampante olive oil (L...
[ { "created": "Tue, 10 Jan 2023 10:17:03 GMT", "version": "v1" } ]
2023-01-12
[ [ "Venturini", "Francesca", "" ], [ "Sperti", "Michela", "" ], [ "Michelucci", "Umberto", "" ], [ "Gucciardi", "Arnaud", "" ], [ "Martos", "Vanessa M.", "" ], [ "Deriu", "Marco A.", "" ] ]
This dataset encompasses fluorescence spectra and chemical parameters of 24 olive oil samples from the 2019-2020 harvest provided by the producer Conde de Benalua, Granada, Spain. The oils are characterized by different qualities: 10 extra virgin olive oil (EVOO), 8 virgin olive oil (VOO), and 6 lampante olive oil (LOO...
2208.11626
Martin Weigt
Carlos A. Gandarilla-Perez, Sergio Pinilla, Anne-Florence Bitbol, Martin Weigt
Combining phylogeny and coevolution improves the inference of interaction partners among paralogous proteins
19 pages
null
10.1371/journal.pcbi.1011010
null
q-bio.BM cond-mat.stat-mech q-bio.MN
http://creativecommons.org/licenses/by-nc-sa/4.0/
Predicting protein-protein interactions from sequences is an important goal of computational biology. Various sources of information can be used to this end. Starting from the sequences of two interacting protein families, one can use phylogeny or residue coevolution to infer which paralogs are specific interaction p...
[ { "created": "Wed, 24 Aug 2022 15:51:28 GMT", "version": "v1" } ]
2023-04-26
[ [ "Gandarilla-Perez", "Carlos A.", "" ], [ "Pinilla", "Sergio", "" ], [ "Bitbol", "Anne-Florence", "" ], [ "Weigt", "Martin", "" ] ]
Predicting protein-protein interactions from sequences is an important goal of computational biology. Various sources of information can be used to this end. Starting from the sequences of two interacting protein families, one can use phylogeny or residue coevolution to infer which paralogs are specific interaction par...
1512.00037
Weiyu Huang
Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett and Alejandro Ribeiro
Graph Frequency Analysis of Brain Signals
null
null
10.1109/JSTSP.2016.2600859
null
q-bio.NC cs.CE cs.SI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents methods to analyze functional brain networks and signals from graph spectral perspectives. The notion of frequency and filters traditionally defined for signals supported on regular domains such as discrete time and image grids has been recently generalized to irregular graph domains, and defines ...
[ { "created": "Mon, 2 Nov 2015 19:25:39 GMT", "version": "v1" }, { "created": "Tue, 3 May 2016 16:00:32 GMT", "version": "v2" } ]
2016-11-03
[ [ "Huang", "Weiyu", "" ], [ "Goldsberry", "Leah", "" ], [ "Wymbs", "Nicholas F.", "" ], [ "Grafton", "Scott T.", "" ], [ "Bassett", "Danielle S.", "" ], [ "Ribeiro", "Alejandro", "" ] ]
This paper presents methods to analyze functional brain networks and signals from graph spectral perspectives. The notion of frequency and filters traditionally defined for signals supported on regular domains such as discrete time and image grids has been recently generalized to irregular graph domains, and defines br...