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2211.14373
Fernando Bastos
Jaime Barros Silva Filho, Fernando de Souza Bastos, Diogo da Silva Machado, Maria Luiza Ferreira Delfim
Application of Molecular Topology to the Prediction of Antioxidant Activity in a Group of Phenolic Compounds
null
null
null
null
q-bio.BM stat.AP
http://creativecommons.org/licenses/by/4.0/
The study of compounds with antioxidant capabilities is of great interest to the scientific community, as it has implications in several areas, from Agricultural Sciences to Biological Sciences, including Food Engineering, Medicine and Pharmacy. In applications related to human health, it is known that antioxidant ac...
[ { "created": "Fri, 25 Nov 2022 21:06:08 GMT", "version": "v1" } ]
2022-11-29
[ [ "Filho", "Jaime Barros Silva", "" ], [ "Bastos", "Fernando de Souza", "" ], [ "Machado", "Diogo da Silva", "" ], [ "Delfim", "Maria Luiza Ferreira", "" ] ]
The study of compounds with antioxidant capabilities is of great interest to the scientific community, as it has implications in several areas, from Agricultural Sciences to Biological Sciences, including Food Engineering, Medicine and Pharmacy. In applications related to human health, it is known that antioxidant acti...
1910.14339
Luis F Seoane PhD
Seoane LF, Sol\'e R
How Turing parasites expand the computational landscape of digital life
16 pages, 10 figures in main paper, supporting material not included
Physical Review E. 2023 Oct 23;108(4):044407
10.1103/PhysRevE.108.044407
null
q-bio.PE cond-mat.dis-nn nlin.AO nlin.CG q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Why are living systems complex? Why does the biosphere contain living beings with complexity features beyond those of the simplest replicators? What kind of evolutionary pressures result in more complex life forms? These are key questions that pervade the problem of how complexity arises in evolution. One particular ...
[ { "created": "Thu, 31 Oct 2019 10:02:20 GMT", "version": "v1" }, { "created": "Thu, 30 Apr 2020 16:59:48 GMT", "version": "v2" }, { "created": "Wed, 14 Oct 2020 14:24:03 GMT", "version": "v3" }, { "created": "Fri, 10 Nov 2023 18:06:43 GMT", "version": "v4" } ]
2023-11-13
[ [ "LF", "Seoane", "" ], [ "R", "Solé", "" ] ]
Why are living systems complex? Why does the biosphere contain living beings with complexity features beyond those of the simplest replicators? What kind of evolutionary pressures result in more complex life forms? These are key questions that pervade the problem of how complexity arises in evolution. One particular wa...
2110.07069
Bryan He
Bryan He, Matthew Thomson, Meena Subramaniam, Richard Perez, Chun Jimmie Ye, James Zou
CloudPred: Predicting Patient Phenotypes From Single-cell RNA-seq
Preprint of an article published in Pacific Symposium on Biocomputing \copyright\ 2021 World Scientific Publishing Co., Singapore, http://psb.stanford.edu/
null
null
null
q-bio.QM cs.LG
http://creativecommons.org/licenses/by/4.0/
Single-cell RNA sequencing (scRNA-seq) has the potential to provide powerful, high-resolution signatures to inform disease prognosis and precision medicine. This paper takes an important first step towards this goal by developing an interpretable machine learning algorithm, CloudPred, to predict individuals' disease ...
[ { "created": "Wed, 13 Oct 2021 22:41:30 GMT", "version": "v1" } ]
2021-10-15
[ [ "He", "Bryan", "" ], [ "Thomson", "Matthew", "" ], [ "Subramaniam", "Meena", "" ], [ "Perez", "Richard", "" ], [ "Ye", "Chun Jimmie", "" ], [ "Zou", "James", "" ] ]
Single-cell RNA sequencing (scRNA-seq) has the potential to provide powerful, high-resolution signatures to inform disease prognosis and precision medicine. This paper takes an important first step towards this goal by developing an interpretable machine learning algorithm, CloudPred, to predict individuals' disease ph...
2104.09182
Elisabeth Rens
Elisabeth G. Rens and Leah Edelstein-Keshet
Cellular tango: How extracellular matrix adhesion choreographs Rac-Rho signaling and cell movement
null
null
10.1088/1478-3975/ac2888
null
q-bio.CB math.DS
http://creativecommons.org/licenses/by/4.0/
The small GTPases Rac and Rho are known to regulate eukaryotic cell shape, promoting front protrusion (Rac) or rear retraction (Rho) of the cell edge. Such cell deformation changes the contact and adhesion of cell to the extracellular matrix (ECM), while ECM signaling through integrin receptors also affects GTPase ac...
[ { "created": "Mon, 19 Apr 2021 10:18:13 GMT", "version": "v1" } ]
2021-12-15
[ [ "Rens", "Elisabeth G.", "" ], [ "Edelstein-Keshet", "Leah", "" ] ]
The small GTPases Rac and Rho are known to regulate eukaryotic cell shape, promoting front protrusion (Rac) or rear retraction (Rho) of the cell edge. Such cell deformation changes the contact and adhesion of cell to the extracellular matrix (ECM), while ECM signaling through integrin receptors also affects GTPase acti...
2302.01019
Serge Kernbach
Serge Kernbach, Olga Kernbach, Andreas Kernbach
Biophysical aspects of neurocognitive modeling with long-term sustained temperature variations
null
null
null
null
q-bio.NC physics.bio-ph physics.med-ph
http://creativecommons.org/licenses/by-nc-nd/4.0/
Long-term focused attention with visualization and breathing exercises is at the core of various Eastern traditions. Neurocognitive and psychosomatic phenomena demonstrated during such exercises were instrumentally explored with EEG and other sensors. Neurocognitive modeling in the form of meditative visualization pr...
[ { "created": "Thu, 2 Feb 2023 11:14:43 GMT", "version": "v1" } ]
2023-02-03
[ [ "Kernbach", "Serge", "" ], [ "Kernbach", "Olga", "" ], [ "Kernbach", "Andreas", "" ] ]
Long-term focused attention with visualization and breathing exercises is at the core of various Eastern traditions. Neurocognitive and psychosomatic phenomena demonstrated during such exercises were instrumentally explored with EEG and other sensors. Neurocognitive modeling in the form of meditative visualization prod...
1407.4824
Joseph Crawford
Joseph Crawford, Yihan Sun, Tijana Milenkovi\'c
Fair Evaluation of Global Network Aligners
19 pages. 10 figures. Presented at the 2014 ISMB Conference, July 13-15, Boston, MA
null
null
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Biological network alignment identifies topologically and functionally conserved regions between networks of different species. It encompasses two algorithmic steps: node cost function (NCF), which measures similarities between nodes in different networks, and alignment strategy (AS), which uses these similarities to...
[ { "created": "Thu, 17 Jul 2014 20:23:00 GMT", "version": "v1" } ]
2014-07-21
[ [ "Crawford", "Joseph", "" ], [ "Sun", "Yihan", "" ], [ "Milenković", "Tijana", "" ] ]
Biological network alignment identifies topologically and functionally conserved regions between networks of different species. It encompasses two algorithmic steps: node cost function (NCF), which measures similarities between nodes in different networks, and alignment strategy (AS), which uses these similarities to r...
1406.3762
Amir Toor
Max Jameson-Lee, Vishal Koparde, Phil Griffith, Allison F. Scalora, Juliana K. Sampson, Haniya Khalid, Nihar U. Sheth, Michael Batalo, Myrna G. Serrano, Catherine H. Roberts, Michael L. Hess, Gregory A. Buck, Michael C. Neale, Masoud H. Manjili, Amir A. Toor
In Silico Derivation of HLA-Specific Alloreactivity Potential from Whole Exome Sequencing of Stem Cell Transplant Donors and Recipients: Understanding the Quantitative Immuno-biology of Allogeneic Transplantation
Abstract: 235, Words: 6422, Figures: 7, Tables: 3, Supplementary figures: 2, Supplementary tables: 2
Frontiers in Immunology 2014. 5:529
10.3389/fimmu.2014.00529
null
q-bio.QM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Donor T cell mediated graft vs. host effects may result from the aggregate alloreactivity to minor histocompatibility antigens (mHA) presented by the HLA in each donor-recipient pair (DRP) undergoing stem cell transplantation (SCT). Whole exome sequencing has demonstrated extensive nucleotide sequence variation in HL...
[ { "created": "Sat, 14 Jun 2014 18:29:58 GMT", "version": "v1" } ]
2014-12-16
[ [ "Jameson-Lee", "Max", "" ], [ "Koparde", "Vishal", "" ], [ "Griffith", "Phil", "" ], [ "Scalora", "Allison F.", "" ], [ "Sampson", "Juliana K.", "" ], [ "Khalid", "Haniya", "" ], [ "Sheth", "Nihar U.", "" ...
Donor T cell mediated graft vs. host effects may result from the aggregate alloreactivity to minor histocompatibility antigens (mHA) presented by the HLA in each donor-recipient pair (DRP) undergoing stem cell transplantation (SCT). Whole exome sequencing has demonstrated extensive nucleotide sequence variation in HLA-...
q-bio/0608001
Gyorgy Korniss
L. O'Malley, B. Kozma, G. Korniss, Z. Racz, T. Caraco
Fisher Waves and Front Roughening in a Two-Species Invasion Model with Preemptive Competition
8 pages, 5 figures; Papers on related work can be found at http://www.rpi.edu/~korniss/Research
Phys. Rev. E 74, 041116 (2006) .
10.1103/PhysRevE.74.041116
null
q-bio.PE cond-mat.stat-mech
null
We study front propagation when an invading species competes with a resident; we assume nearest-neighbor preemptive competition for resources in an individual-based, two-dimensional lattice model. The asymptotic front velocity exhibits power-law dependence on the difference between the two species' clonal propagation...
[ { "created": "Tue, 1 Aug 2006 14:41:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "O'Malley", "L.", "" ], [ "Kozma", "B.", "" ], [ "Korniss", "G.", "" ], [ "Racz", "Z.", "" ], [ "Caraco", "T.", "" ] ]
We study front propagation when an invading species competes with a resident; we assume nearest-neighbor preemptive competition for resources in an individual-based, two-dimensional lattice model. The asymptotic front velocity exhibits power-law dependence on the difference between the two species' clonal propagation r...
2011.06515
Adriano de Albuquerque Batista
Adriano A. Batista and Severino Hor\'acio da Silva
An epidemiological compartmental model with automated parameter estimation and forecasting of the spread of COVID-19 with analysis of data from Germany and Brazil
37 pages, 9 figures
Front. Appl. Math. Stat., 13 April 2022
10.3389/fams.2022.645614
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we adapt the epidemiological SIR model to study the evolution of the dissemination of COVID-19 in Germany and Brazil (nationally, in the State of Paraiba, and in the City of Campina Grande). We prove the well posedness and the continuous dependence of the model dynamics on its parameters. We also propos...
[ { "created": "Wed, 11 Nov 2020 17:54:01 GMT", "version": "v1" } ]
2022-04-20
[ [ "Batista", "Adriano A.", "" ], [ "da Silva", "Severino Horácio", "" ] ]
In this work, we adapt the epidemiological SIR model to study the evolution of the dissemination of COVID-19 in Germany and Brazil (nationally, in the State of Paraiba, and in the City of Campina Grande). We prove the well posedness and the continuous dependence of the model dynamics on its parameters. We also propose ...
1308.6074
Sohan Seth
Sohan Seth, Niko V\"alim\"aki, Samuel Kaski, Antti Honkela
Exploration and retrieval of whole-metagenome sequencing samples
16 pages; additional results
null
null
null
q-bio.GN cs.CE cs.IR
http://creativecommons.org/licenses/by/3.0/
Over the recent years, the field of whole metagenome shotgun sequencing has witnessed significant growth due to the high-throughput sequencing technologies that allow sequencing genomic samples cheaper, faster, and with better coverage than before. This technical advancement has initiated the trend of sequencing mult...
[ { "created": "Wed, 28 Aug 2013 07:28:35 GMT", "version": "v1" }, { "created": "Thu, 3 Apr 2014 09:57:56 GMT", "version": "v2" } ]
2014-04-04
[ [ "Seth", "Sohan", "" ], [ "Välimäki", "Niko", "" ], [ "Kaski", "Samuel", "" ], [ "Honkela", "Antti", "" ] ]
Over the recent years, the field of whole metagenome shotgun sequencing has witnessed significant growth due to the high-throughput sequencing technologies that allow sequencing genomic samples cheaper, faster, and with better coverage than before. This technical advancement has initiated the trend of sequencing multip...
1312.2827
Christian Althaus Ph.D.
Nicola Low, Janneke C.M. Heijne, Sereina A. Herzog, Christian L. Althaus
Re-infection by untreated partners of people treated for Chlamydia trachomatis and Neisseria gonorrhoeae: mathematical modelling study
Short report, 1 figure
Sex Transm Infect. 2014 May;90(3):254-6
10.1136/sextrans-2013-051279
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Objectives: Re-infection after treatment for Chlamydia trachomatis or Neisseria gonorrhoeae reduces the effect of control interventions. We explored the impact of delays in partner treatment on the expected probability of re-infection of index cases using a mathematical model. Methods: We used previously reported par...
[ { "created": "Tue, 10 Dec 2013 15:10:13 GMT", "version": "v1" } ]
2014-08-20
[ [ "Low", "Nicola", "" ], [ "Heijne", "Janneke C. M.", "" ], [ "Herzog", "Sereina A.", "" ], [ "Althaus", "Christian L.", "" ] ]
Objectives: Re-infection after treatment for Chlamydia trachomatis or Neisseria gonorrhoeae reduces the effect of control interventions. We explored the impact of delays in partner treatment on the expected probability of re-infection of index cases using a mathematical model. Methods: We used previously reported param...
q-bio/0501021
Michael Stiber
Michael Stiber
Spike timing precision and neural error correction: local behavior
23 pages, 27 figures, to be published in Neural Computation
Neural Computation, v. 17, n. 7, 1577-1601, 2005
null
null
q-bio.NC cs.NE math.DS
null
The effects of spike timing precision and dynamical behavior on error correction in spiking neurons were investigated. Stationary discharges -- phase locked, quasiperiodic, or chaotic -- were induced in a simulated neuron by presenting pacemaker presynaptic spike trains across a model of a prototypical inhibitory syn...
[ { "created": "Fri, 14 Jan 2005 13:25:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Stiber", "Michael", "" ] ]
The effects of spike timing precision and dynamical behavior on error correction in spiking neurons were investigated. Stationary discharges -- phase locked, quasiperiodic, or chaotic -- were induced in a simulated neuron by presenting pacemaker presynaptic spike trains across a model of a prototypical inhibitory synap...
1707.08284
Johannes M\"uller
Lukas Heinrich, Johannes M\"uller, Aur\'elien Tellier, Daniel Zivkovi\'c
Effects of population- and seed bank noise on neutral evolution and efficacy of natural selection
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Population genetics models typically consider a fixed population size and a unique selection coefficient. However, population dynamics inherently generate noise in numbers of individuals and selection acts on various components of the individuals' fitness. In plant species with seed banks, the size of both the above-...
[ { "created": "Wed, 26 Jul 2017 04:16:12 GMT", "version": "v1" }, { "created": "Mon, 11 Dec 2017 12:46:26 GMT", "version": "v2" } ]
2017-12-12
[ [ "Heinrich", "Lukas", "" ], [ "Müller", "Johannes", "" ], [ "Tellier", "Aurélien", "" ], [ "Zivković", "Daniel", "" ] ]
Population genetics models typically consider a fixed population size and a unique selection coefficient. However, population dynamics inherently generate noise in numbers of individuals and selection acts on various components of the individuals' fitness. In plant species with seed banks, the size of both the above- a...
1911.06107
Joe Kileel
Nathan Zelesko, Amit Moscovich, Joe Kileel, Amit Singer
Earthmover-based manifold learning for analyzing molecular conformation spaces
5 pages, 4 figures, 1 table
IEEE 17th International Symposium on Biomedical Imaging (ISBI) 2020
10.1109/ISBI45749.2020.9098723
null
q-bio.BM cs.LG eess.IV stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we propose a novel approach for manifold learning that combines the Earthmover's distance (EMD) with the diffusion maps method for dimensionality reduction. We demonstrate the potential benefits of this approach for learning shape spaces of proteins and other flexible macromolecules using a simulated d...
[ { "created": "Wed, 16 Oct 2019 01:38:52 GMT", "version": "v1" } ]
2022-05-24
[ [ "Zelesko", "Nathan", "" ], [ "Moscovich", "Amit", "" ], [ "Kileel", "Joe", "" ], [ "Singer", "Amit", "" ] ]
In this paper, we propose a novel approach for manifold learning that combines the Earthmover's distance (EMD) with the diffusion maps method for dimensionality reduction. We demonstrate the potential benefits of this approach for learning shape spaces of proteins and other flexible macromolecules using a simulated dat...
1908.10166
Casimiro Adays Curbelo Monta\~nez
Casimiro Aday Curbelo Monta\~nez, Paul Fergus, Carl Chalmers, Nurul Ahamed Hassain Malim, Basma Abdulaimma, Denis Reilly, and Francesco Falciani
SAERMA: Stacked Autoencoder Rule Mining Algorithm for the Interpretation of Epistatic Interactions in GWAS for Extreme Obesity
12 pages, 6 figures, 12 tables, 9 equations, journal
null
null
null
q-bio.GN cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most important challenges in the analysis of high-throughput genetic data is the development of efficient computational methods to identify statistically significant Single Nucleotide Polymorphisms (SNPs). Genome-wide association studies (GWAS) use single-locus analysis where each SNP is independently test...
[ { "created": "Tue, 27 Aug 2019 12:49:05 GMT", "version": "v1" } ]
2019-08-28
[ [ "Montañez", "Casimiro Aday Curbelo", "" ], [ "Fergus", "Paul", "" ], [ "Chalmers", "Carl", "" ], [ "Malim", "Nurul Ahamed Hassain", "" ], [ "Abdulaimma", "Basma", "" ], [ "Reilly", "Denis", "" ], [ "Falciani", ...
One of the most important challenges in the analysis of high-throughput genetic data is the development of efficient computational methods to identify statistically significant Single Nucleotide Polymorphisms (SNPs). Genome-wide association studies (GWAS) use single-locus analysis where each SNP is independently tested...
1802.01211
Casper Beentjes
Casper H. L. Beentjes and Ruth E. Baker
Quasi-Monte Carlo methods applied to tau-leaping in stochastic biological systems
null
Bull. Math. Biol. (2019) 81: 2931
10.1007/s11538-018-0442-2
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quasi-Monte Carlo methods have proven to be effective extensions of traditional Monte Carlo methods in, amongst others, problems of quadrature and the sample path simulation of stochastic differential equations. By replacing the random number input stream in a simulation procedure by a low-discrepancy number input st...
[ { "created": "Sun, 4 Feb 2018 22:32:21 GMT", "version": "v1" }, { "created": "Tue, 1 May 2018 10:41:02 GMT", "version": "v2" } ]
2019-12-12
[ [ "Beentjes", "Casper H. L.", "" ], [ "Baker", "Ruth E.", "" ] ]
Quasi-Monte Carlo methods have proven to be effective extensions of traditional Monte Carlo methods in, amongst others, problems of quadrature and the sample path simulation of stochastic differential equations. By replacing the random number input stream in a simulation procedure by a low-discrepancy number input stre...
1610.01898
Christian Geier
Christian Geier, Alexander Rothkegel, Christian E. Elger, Klaus Lehnertz
Bursting and Synchrony in Networks of Model Neurons
null
R. Tetzlaff and C. E. Elger and K. Lehnertz (2013), Recent Advances in Predicting and Preventing Epileptic Seizures, page 108-116, Singapore, World Scientific
null
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Bursting neurons are considered to be a potential cause of over-excitability and seizure susceptibility. The functional influence of these neurons in extended epileptic networks is still poorly understood. There is mounting evidence that the dynamics of neuronal networks is influenced not only by neuronal and synapti...
[ { "created": "Thu, 6 Oct 2016 14:52:22 GMT", "version": "v1" } ]
2016-10-07
[ [ "Geier", "Christian", "" ], [ "Rothkegel", "Alexander", "" ], [ "Elger", "Christian E.", "" ], [ "Lehnertz", "Klaus", "" ] ]
Bursting neurons are considered to be a potential cause of over-excitability and seizure susceptibility. The functional influence of these neurons in extended epileptic networks is still poorly understood. There is mounting evidence that the dynamics of neuronal networks is influenced not only by neuronal and synaptic ...
1810.04412
Ankit Kumar Shukla
Ashutosh Gupta, Somya Mani, and Ankit Shukla
Synthesis for Vesicle Traffic Systems
18 pages, 2 figures, 1 table
null
10.1007/978-3-319-99429-1_6
null
q-bio.SC cs.CE cs.LO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Vesicle Traffic Systems (VTSs) are the material transport mechanisms among the compartments inside the biological cells. The compartments are viewed as nodes that are labeled with the containing chemicals and the transport channels are similarly viewed as labeled edges between the nodes. Understanding VTSs is an ongo...
[ { "created": "Wed, 10 Oct 2018 08:34:50 GMT", "version": "v1" } ]
2018-10-12
[ [ "Gupta", "Ashutosh", "" ], [ "Mani", "Somya", "" ], [ "Shukla", "Ankit", "" ] ]
Vesicle Traffic Systems (VTSs) are the material transport mechanisms among the compartments inside the biological cells. The compartments are viewed as nodes that are labeled with the containing chemicals and the transport channels are similarly viewed as labeled edges between the nodes. Understanding VTSs is an ongoin...
2012.10295
Andrew Whitwham
Petr Danecek, James K. Bonfield, Jennifer Liddle, John Marshall, Valeriu Ohan, Martin O Pollard, Andrew Whitwham, Thomas Keane, Shane A. McCarthy, Robert M. Davies, Heng Li
Twelve years of SAMtools and BCFtools
null
null
null
null
q-bio.GN
http://creativecommons.org/licenses/by/4.0/
Background SAMtools and BCFtools are widely used programs for processing and analysing high-throughput sequencing data. Findings The first version appeared online twelve years ago and has been maintained and further developed ever since, with many new features and improvements added over the years. The SAMtools...
[ { "created": "Fri, 18 Dec 2020 15:19:36 GMT", "version": "v1" }, { "created": "Tue, 2 Feb 2021 11:19:20 GMT", "version": "v2" } ]
2021-02-03
[ [ "Danecek", "Petr", "" ], [ "Bonfield", "James K.", "" ], [ "Liddle", "Jennifer", "" ], [ "Marshall", "John", "" ], [ "Ohan", "Valeriu", "" ], [ "Pollard", "Martin O", "" ], [ "Whitwham", "Andrew", "" ], ...
Background SAMtools and BCFtools are widely used programs for processing and analysing high-throughput sequencing data. Findings The first version appeared online twelve years ago and has been maintained and further developed ever since, with many new features and improvements added over the years. The SAMtools and BCF...
2001.10535
Jinsong Meng
Jinsong Meng
Bridging the Gap Between Consciousness and Matter: Recurrent Out-of-Body Projection of Visual Awareness Revealed by the Law of Non-Identity
20 pages, 9 figures, and 1 table. Comments: 21 pages, 9 figures, and 1 table: typos corrected, references added, a figure moved from the supplementary part to the main text, typesetting changed from double columns to one column. Comments: 28 pages, 10 figures, and 1 table: style changed to APA, title changed, t...
Integrative Psychological and Behavioral Science,Volume 57 Issue 2, June 2023
10.1007/s12124-023-09775-y
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Consciousness is an explicit outcome of brain activity. However, the link between consciousness and the material world remains to be explored. We applied a new logic tool, the non-identity law, to the analysis of the visual dynamics related to the naturalistic observation of a night-shot still life. We show that visu...
[ { "created": "Wed, 29 Jan 2020 18:20:37 GMT", "version": "v1" }, { "created": "Wed, 18 Nov 2020 18:55:10 GMT", "version": "v2" }, { "created": "Thu, 15 Jul 2021 14:35:15 GMT", "version": "v3" } ]
2023-05-25
[ [ "Meng", "Jinsong", "" ] ]
Consciousness is an explicit outcome of brain activity. However, the link between consciousness and the material world remains to be explored. We applied a new logic tool, the non-identity law, to the analysis of the visual dynamics related to the naturalistic observation of a night-shot still life. We show that visual...
q-bio/0409010
Bernd Burghardt
Bernd Burghardt and Alexander K. Hartmann
Dependence of RNA secondary structure on the energy model
8 pages, 9 figures
null
10.1103/PhysRevE.71.021913
null
q-bio.QM
null
We analyze a microscopic RNA model, which includes two widely used models as limiting cases, namely it contains terms for bond as well as for stacking energies. We numerically investigate possible changes in the qualitative and quantitative behaviour while going from one model to the other; in particular we test, whe...
[ { "created": "Tue, 7 Sep 2004 09:04:35 GMT", "version": "v1" } ]
2009-11-10
[ [ "Burghardt", "Bernd", "" ], [ "Hartmann", "Alexander K.", "" ] ]
We analyze a microscopic RNA model, which includes two widely used models as limiting cases, namely it contains terms for bond as well as for stacking energies. We numerically investigate possible changes in the qualitative and quantitative behaviour while going from one model to the other; in particular we test, wheth...
1410.1836
Stuart Kauffman
Stuart Kauffman
A Holistic, Non-algorithmic View of Cultural Evolution: Commentary on Review Article by Prof. Liane Gabora
3 pages
Physics of Life Reviews, 10(2), 154-155
10.1016/j.plrev.2013.05.005
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There is surely some truth to the notion that culture evolves, but the Darwinian view of culture is trivial. Gabora does two things in this paper. First, she levels a reasoned and devastating attack on the adequacy of a Darwinian theory of cultural evolution, showing that cultural evolution violates virtually all pre...
[ { "created": "Tue, 7 Oct 2014 18:25:05 GMT", "version": "v1" } ]
2015-06-23
[ [ "Kauffman", "Stuart", "" ] ]
There is surely some truth to the notion that culture evolves, but the Darwinian view of culture is trivial. Gabora does two things in this paper. First, she levels a reasoned and devastating attack on the adequacy of a Darwinian theory of cultural evolution, showing that cultural evolution violates virtually all prere...
2405.02524
Danilo Bernardo
Danilo Bernardo, Xihe Xie, Parul Verma, Jonathan Kim, Virginia Liu, Adam L. Numis, Ye Wu, Hannah C. Glass, Pew-Thian Yap, Srikantan S. Nagarajan, Ashish Raj
Simulation-based Inference of Developmental EEG Maturation with the Spectral Graph Model
40 pages, 6 figures, 19 supplementary figures
Commun Phys 7, 255 (2024)
10.1038/s42005-024-01748-w
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
The spectral content of macroscopic neural activity evolves throughout development, yet how this maturation relates to underlying brain network formation and dynamics remains unknown. Here, we assess the developmental maturation of electroencephalogram spectra via Bayesian model inversion of the spectral graph model,...
[ { "created": "Fri, 3 May 2024 23:44:30 GMT", "version": "v1" }, { "created": "Thu, 11 Jul 2024 21:48:14 GMT", "version": "v2" }, { "created": "Fri, 26 Jul 2024 08:34:40 GMT", "version": "v3" } ]
2024-08-05
[ [ "Bernardo", "Danilo", "" ], [ "Xie", "Xihe", "" ], [ "Verma", "Parul", "" ], [ "Kim", "Jonathan", "" ], [ "Liu", "Virginia", "" ], [ "Numis", "Adam L.", "" ], [ "Wu", "Ye", "" ], [ "Glass", "Han...
The spectral content of macroscopic neural activity evolves throughout development, yet how this maturation relates to underlying brain network formation and dynamics remains unknown. Here, we assess the developmental maturation of electroencephalogram spectra via Bayesian model inversion of the spectral graph model, a...
1808.07785
Karen Petrosyan
K.G. Petrosyan
Inter-state switching in stochastic gene expression: Exact solution, an adiabatic limit and oscillations in molecular distributions
6 pages, 6 figures
null
null
null
q-bio.MN cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the stochastic gene expression process with inter-state flip-flops. An exact steady-state solution to the master equation is calculated. One of the main goals in this paper is to investigate whether the probability distribution of gene copies contains even-odd number oscillations. A master equation previo...
[ { "created": "Thu, 23 Aug 2018 14:53:13 GMT", "version": "v1" }, { "created": "Thu, 28 Mar 2019 08:44:58 GMT", "version": "v2" }, { "created": "Thu, 24 Sep 2020 07:57:20 GMT", "version": "v3" } ]
2020-09-25
[ [ "Petrosyan", "K. G.", "" ] ]
We consider the stochastic gene expression process with inter-state flip-flops. An exact steady-state solution to the master equation is calculated. One of the main goals in this paper is to investigate whether the probability distribution of gene copies contains even-odd number oscillations. A master equation previous...
1805.10892
Eero Satuvuori
Eero Satuvuori, Mario Mulansky, Andreas Daffertshofer, Thomas Kreuz
Using spike train distances to identify the most discriminative neuronal subpopulation
14 pages, 9 Figures
null
10.1016/j.jneumeth.2018.09.008
null
q-bio.NC physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background: Spike trains of multiple neurons can be analyzed following the summed population (SP) or the labeled line (LL) hypothesis. Responses to external stimuli are generated by a neuronal population as a whole or the individual neurons have encoding capacities of their own. The SPIKE-distance estimated either fo...
[ { "created": "Mon, 28 May 2018 12:40:10 GMT", "version": "v1" }, { "created": "Fri, 14 Sep 2018 09:10:05 GMT", "version": "v2" } ]
2018-09-17
[ [ "Satuvuori", "Eero", "" ], [ "Mulansky", "Mario", "" ], [ "Daffertshofer", "Andreas", "" ], [ "Kreuz", "Thomas", "" ] ]
Background: Spike trains of multiple neurons can be analyzed following the summed population (SP) or the labeled line (LL) hypothesis. Responses to external stimuli are generated by a neuronal population as a whole or the individual neurons have encoding capacities of their own. The SPIKE-distance estimated either for ...
1108.0673
Mois\'es Santill\'an Dr.
Eder Zavala-L\'opez, Mois\'es Santill\'an
Oscillation arrest in the mouse somitogenesis clock presumably takes place via an infinite period bifurcation
13 pages, 2 figures
null
null
null
q-bio.CB physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we address the question of how oscillations are arrested in the mouse somitogenesis clock when the determination front reaches presomitic cells. Based upon available experimental evidence we hypothesize that the mechanism underlying such a phenomenon involves the interaction between a limit cycle (origin...
[ { "created": "Tue, 2 Aug 2011 20:05:23 GMT", "version": "v1" } ]
2015-03-13
[ [ "Zavala-López", "Eder", "" ], [ "Santillán", "Moisés", "" ] ]
In this work we address the question of how oscillations are arrested in the mouse somitogenesis clock when the determination front reaches presomitic cells. Based upon available experimental evidence we hypothesize that the mechanism underlying such a phenomenon involves the interaction between a limit cycle (originat...
0707.0804
Brigitte Gaillard
M. Boos (DEPE-Iphc), C. Zimmer (DEPE-Iphc), A. Carriere (DEPE-Iphc), J.P. Robin (DEPE-Iphc), O. Petit (DEPE-Iphc)
Post-hatching parental care behaviour and hormonal status in a precocial bird
null
Behavioural Processes (18/05/2007) sous presse
10.1016/j.beproc.2007.05.003
null
q-bio.PE
null
In birds, the link between parental care behaviour and prolactin release during incubation persists after hatching in altricial birds, but has never been precisely studied during the whole rearing period in precocial species, such as ducks. The present study aims to understand how changes in parental care after hatch...
[ { "created": "Thu, 5 Jul 2007 15:12:49 GMT", "version": "v1" } ]
2007-07-06
[ [ "Boos", "M.", "", "DEPE-Iphc" ], [ "Zimmer", "C.", "", "DEPE-Iphc" ], [ "Carriere", "A.", "", "DEPE-Iphc" ], [ "Robin", "J. P.", "", "DEPE-Iphc" ], [ "Petit", "O.", "", "DEPE-Iphc" ] ]
In birds, the link between parental care behaviour and prolactin release during incubation persists after hatching in altricial birds, but has never been precisely studied during the whole rearing period in precocial species, such as ducks. The present study aims to understand how changes in parental care after hatchin...
1603.05343
Roberto D. Pascual-Marqui
RD Pascual-Marqui, P Faber, T Kinoshita, Y Kitaura, K Kochi, P Milz, K Nishida, M Yoshimura
The dual frequency RV-coupling coefficient: a novel measure for quantifying cross-frequency information transactions in the brain
technical report, pre-print, 2016-03-16
null
null
null
q-bio.NC stat.ME
http://creativecommons.org/licenses/by-nc-sa/4.0/
Identifying dynamic transactions between brain regions has become increasingly important. Measurements within and across brain structures, demonstrating the occurrence of bursts of beta/gamma oscillations only during one specific phase of each theta/alpha cycle, have motivated the need to advance beyond linear and st...
[ { "created": "Thu, 17 Mar 2016 03:02:50 GMT", "version": "v1" }, { "created": "Fri, 18 Mar 2016 00:52:48 GMT", "version": "v2" } ]
2016-03-21
[ [ "Pascual-Marqui", "RD", "" ], [ "Faber", "P", "" ], [ "Kinoshita", "T", "" ], [ "Kitaura", "Y", "" ], [ "Kochi", "K", "" ], [ "Milz", "P", "" ], [ "Nishida", "K", "" ], [ "Yoshimura", "M", "...
Identifying dynamic transactions between brain regions has become increasingly important. Measurements within and across brain structures, demonstrating the occurrence of bursts of beta/gamma oscillations only during one specific phase of each theta/alpha cycle, have motivated the need to advance beyond linear and stat...
1107.2223
Marc de Lussanet H.E.
Marc H. E. de Lussanet
A hexamer origin of the echinoderms' five rays
10 pages, 6 figures
Evolution and Development 2011, 13(2):228-238
10.1111/j.1525-142x.2011.00472.x
null
q-bio.PE q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Of the major deuterostome groups, the echinoderms with their multiple forms and complex development are arguably the most mysterious. Although larval echinoderms are bilaterally symmetric, the adult body seems to abandon the larval body plan and to develop independently a new structure with different symmetries. The ...
[ { "created": "Tue, 12 Jul 2011 09:32:28 GMT", "version": "v1" }, { "created": "Mon, 1 Apr 2013 19:45:10 GMT", "version": "v2" } ]
2013-04-02
[ [ "de Lussanet", "Marc H. E.", "" ] ]
Of the major deuterostome groups, the echinoderms with their multiple forms and complex development are arguably the most mysterious. Although larval echinoderms are bilaterally symmetric, the adult body seems to abandon the larval body plan and to develop independently a new structure with different symmetries. The pr...
2005.05595
Yves Dumont
Maria Soledad Aronna (FGV), Yves Dumont (UMR AMAP)
On nonlinear pest/vector control via the Sterile Insect Technique: impact of residual fertility
null
null
null
null
q-bio.PE math.DS math.OC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a minimalist model for the Sterile Insect Technique (SIT), assuming that residual fertility can occur in the sterile male population.Taking into account that we are able to get regular measurements from the biological system along the control duration, such as the size of the wild insect population, we st...
[ { "created": "Tue, 12 May 2020 08:04:01 GMT", "version": "v1" } ]
2020-05-13
[ [ "Aronna", "Maria Soledad", "", "FGV" ], [ "Dumont", "Yves", "", "UMR AMAP" ] ]
We consider a minimalist model for the Sterile Insect Technique (SIT), assuming that residual fertility can occur in the sterile male population.Taking into account that we are able to get regular measurements from the biological system along the control duration, such as the size of the wild insect population, we stud...
2107.08010
Rebekah Rogers
Rebekah L. Rogers, Stephanie L. Grizzard, and Jeffrey T. Garner
Strong, recent selective sweeps reshape genetic diversity in freshwater bivalve Megalonaias nervosa
7 figures, 6 supplementary tables, 21 supplementary figures. 60 pages total
null
null
null
q-bio.PE q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Freshwater Unionid bivalves have recently faced ecological upheaval through pollution, barriers to dispersal, human harvesting, and changes in fish-host prevalence. Currently, over 70% of species are threatened, endangered or extinct. To characterize the genetic response to these recent selective pressures, we collec...
[ { "created": "Fri, 16 Jul 2021 16:56:48 GMT", "version": "v1" }, { "created": "Fri, 27 May 2022 21:17:31 GMT", "version": "v2" }, { "created": "Thu, 17 Nov 2022 16:35:08 GMT", "version": "v3" } ]
2022-11-18
[ [ "Rogers", "Rebekah L.", "" ], [ "Grizzard", "Stephanie L.", "" ], [ "Garner", "Jeffrey T.", "" ] ]
Freshwater Unionid bivalves have recently faced ecological upheaval through pollution, barriers to dispersal, human harvesting, and changes in fish-host prevalence. Currently, over 70% of species are threatened, endangered or extinct. To characterize the genetic response to these recent selective pressures, we collecte...
1410.0566
Nadya Morozova
Nadya Morozova and Robert Penner
Geometry of Morphogenesis
null
null
null
null
q-bio.OT math.MG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a formalism for the geometry of eukaryotic cells and organisms.Cells are taken to be star-convex with good biological reason. This allows for a convenient description of their extent in space as well as all manner of cell surface gradients. We assume that a spectrum of such cell surface markers determine...
[ { "created": "Wed, 1 Oct 2014 10:23:46 GMT", "version": "v1" } ]
2014-10-03
[ [ "Morozova", "Nadya", "" ], [ "Penner", "Robert", "" ] ]
We introduce a formalism for the geometry of eukaryotic cells and organisms.Cells are taken to be star-convex with good biological reason. This allows for a convenient description of their extent in space as well as all manner of cell surface gradients. We assume that a spectrum of such cell surface markers determines ...
1303.3963
Ovidiu Radulescu
Vincent Noel, Dima Grigoriev, Sergei Vakulenko and Ovidiu Radulescu
Tropicalization and tropical equilibration of chemical reactions
13 pages, 1 figure, workshop Tropical-12, Moskow, August 26-31, 2012; in press Contemporary Mathematics
null
null
null
q-bio.MN math.AG
http://creativecommons.org/licenses/publicdomain/
Systems biology uses large networks of biochemical reactions to model the functioning of biological cells from the molecular to the cellular scale. The dynamics of dissipative reaction networks with many well separated time scales can be described as a sequence of successive equilibrations of different subsets of var...
[ { "created": "Sat, 16 Mar 2013 10:17:45 GMT", "version": "v1" }, { "created": "Mon, 27 May 2013 10:07:03 GMT", "version": "v2" } ]
2013-05-28
[ [ "Noel", "Vincent", "" ], [ "Grigoriev", "Dima", "" ], [ "Vakulenko", "Sergei", "" ], [ "Radulescu", "Ovidiu", "" ] ]
Systems biology uses large networks of biochemical reactions to model the functioning of biological cells from the molecular to the cellular scale. The dynamics of dissipative reaction networks with many well separated time scales can be described as a sequence of successive equilibrations of different subsets of varia...
1711.08548
Mohd Almie Alias
Mohd Almie Alias and Pascal R Buenzli
Osteoblasts infill irregular pores under curvature and porosity controls: A hypothesis-testing analysis of cell behaviours
14 pages, 11 figures, Appendix
Biomech Model Mechanobiol (2018) 17:1357-1371
10.1007/s10237-018-1031-x
null
q-bio.CB physics.bio-ph q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The geometric control of bone tissue growth plays a significant role in bone remodelling, age-related bone loss, and tissue engineering. However, how exactly geometry influences the behaviour of bone-forming cells remains elusive. Geometry modulates cell populations collectively through the evolving space available t...
[ { "created": "Thu, 23 Nov 2017 01:15:35 GMT", "version": "v1" }, { "created": "Fri, 6 Apr 2018 14:40:53 GMT", "version": "v2" } ]
2020-05-28
[ [ "Alias", "Mohd Almie", "" ], [ "Buenzli", "Pascal R", "" ] ]
The geometric control of bone tissue growth plays a significant role in bone remodelling, age-related bone loss, and tissue engineering. However, how exactly geometry influences the behaviour of bone-forming cells remains elusive. Geometry modulates cell populations collectively through the evolving space available to ...
1503.07396
Delfim F. M. Torres
Amira Rachah, Delfim F. M. Torres
Mathematical Modelling, Simulation, and Optimal Control of the 2014 Ebola Outbreak in West Africa
This is a preprint of a paper whose final and definite form is Discrete Dynamics in Nature and Society (Print ISSN: 1026-0226; Online ISSN: 1607-887X) 2015, Article ID 842792, 9 pp. See http://dx.doi.org/10.1155/2015/842792 Submitted 26-Dec-2014; revised 27-Feb-2015; accepted 28-Feb-2015
Discrete Dyn. Nat. Soc. 2015 (2015), Art. ID 842792, 9 pp
10.1155/2015/842792
null
q-bio.PE math.OC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Ebola virus is currently one of the most virulent pathogens for humans. The latest major outbreak occurred in Guinea, Sierra Leonne and Liberia in 2014. With the aim of understanding the spread of infection in the affected countries, it is crucial to modelize the virus and simulate it. In this paper, we begin by ...
[ { "created": "Fri, 13 Mar 2015 01:02:33 GMT", "version": "v1" } ]
2015-03-26
[ [ "Rachah", "Amira", "" ], [ "Torres", "Delfim F. M.", "" ] ]
The Ebola virus is currently one of the most virulent pathogens for humans. The latest major outbreak occurred in Guinea, Sierra Leonne and Liberia in 2014. With the aim of understanding the spread of infection in the affected countries, it is crucial to modelize the virus and simulate it. In this paper, we begin by st...
1612.08550
Giovanni Bussi
Richard A. Cunha and Giovanni Bussi
Unravelling Mg$^{2+}$-RNA binding with atomistic molecular dynamics
null
RNA 2017, 23, 628-638
10.1261/rna.060079.116
null
q-bio.BM physics.bio-ph physics.chem-ph physics.comp-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Interaction with divalent cations is of paramount importance for RNA structural stability and function. We here report a detailed molecular dynamics study of all the possible binding sites for Mg$^{2+}$ on a RNA duplex, including both direct (inner sphere) and indirect (outer sphere) binding. In order to tackle sampl...
[ { "created": "Tue, 27 Dec 2016 09:28:58 GMT", "version": "v1" } ]
2017-04-19
[ [ "Cunha", "Richard A.", "" ], [ "Bussi", "Giovanni", "" ] ]
Interaction with divalent cations is of paramount importance for RNA structural stability and function. We here report a detailed molecular dynamics study of all the possible binding sites for Mg$^{2+}$ on a RNA duplex, including both direct (inner sphere) and indirect (outer sphere) binding. In order to tackle samplin...
1509.07918
Daniele Ramazzotti
Giulio Caravagna, Alex Graudenzi, Daniele Ramazzotti, Rebeca Sanz-Pamplona, Luca De Sano, Giancarlo Mauri, Victor Moreno, Marco Antoniotti, Bud Mishra
Algorithmic Methods to Infer the Evolutionary Trajectories in Cancer Progression
null
null
10.1073/pnas.1520213113
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The genomic evolution inherent to cancer relates directly to a renewed focus on the voluminous next generation sequencing (NGS) data, and machine learning for the inference of explanatory models of how the (epi)genomic events are choreographed in cancer initiation and development. However, despite the increasing avai...
[ { "created": "Fri, 25 Sep 2015 23:01:37 GMT", "version": "v1" }, { "created": "Tue, 6 Oct 2015 15:13:30 GMT", "version": "v2" }, { "created": "Thu, 19 May 2016 17:49:26 GMT", "version": "v3" }, { "created": "Wed, 8 Mar 2017 21:08:33 GMT", "version": "v4" } ]
2017-03-10
[ [ "Caravagna", "Giulio", "" ], [ "Graudenzi", "Alex", "" ], [ "Ramazzotti", "Daniele", "" ], [ "Sanz-Pamplona", "Rebeca", "" ], [ "De Sano", "Luca", "" ], [ "Mauri", "Giancarlo", "" ], [ "Moreno", "Victor", "...
The genomic evolution inherent to cancer relates directly to a renewed focus on the voluminous next generation sequencing (NGS) data, and machine learning for the inference of explanatory models of how the (epi)genomic events are choreographed in cancer initiation and development. However, despite the increasing availa...
1805.01349
Mansoor Sheikh
A Santaolalla, M Sheikh, M Van Hemelrijck, A Portieri, ACC Coolen
Improved resection margins in breast-conserving surgery using Terahertz Pulsed imaging data
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New statistical methods were employed to improve the ability to distinguish benign from malignant breast tissue ex vivo in a recent study. The ultimately aim was to improve the intraoperative assessment of positive tumour margins in breast-conserving surgery (BCS), potentially reducing patient re-operation rates. A m...
[ { "created": "Thu, 3 May 2018 15:02:40 GMT", "version": "v1" } ]
2018-05-04
[ [ "Santaolalla", "A", "" ], [ "Sheikh", "M", "" ], [ "Van Hemelrijck", "M", "" ], [ "Portieri", "A", "" ], [ "Coolen", "ACC", "" ] ]
New statistical methods were employed to improve the ability to distinguish benign from malignant breast tissue ex vivo in a recent study. The ultimately aim was to improve the intraoperative assessment of positive tumour margins in breast-conserving surgery (BCS), potentially reducing patient re-operation rates. A mul...
1404.7842
Howard Deutsch
Howard M. Deutsch, Xiaocong Michael Ye and Margaret M. Schweri
Synthesis and Pharmacology of Ester Modified (+/-)-threo-Methylphenidate Analogs
15 pages, 1 figure
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As part of a program to develop compounds with potential to treat cocaine abuse, eleven (+/-)-threo-methylphenidate (TMP; Ritalin) derivatives were synthesized and tested in rat striatal tissue preparations for inhibitory potency against [3H]WIN 35,428 binding (WIN) to the dopamine (DA) transporter, [3H]citalopram bi...
[ { "created": "Wed, 30 Apr 2014 19:24:18 GMT", "version": "v1" } ]
2014-05-01
[ [ "Deutsch", "Howard M.", "" ], [ "Ye", "Xiaocong Michael", "" ], [ "Schweri", "Margaret M.", "" ] ]
As part of a program to develop compounds with potential to treat cocaine abuse, eleven (+/-)-threo-methylphenidate (TMP; Ritalin) derivatives were synthesized and tested in rat striatal tissue preparations for inhibitory potency against [3H]WIN 35,428 binding (WIN) to the dopamine (DA) transporter, [3H]citalopram bind...
0801.2982
John Rhodes
Elizabeth S. Allman, John A. Rhodes
The Identifiability of Covarion Models in Phylogenetics
12 pages, 2 figures; Final version
null
null
null
q-bio.PE
null
Covarion models of character evolution describe inhomogeneities in substitution processes through time. In phylogenetics, such models are used to describe changing functional constraints or selection regimes during the evolution of biological sequences. In this work the identifiability of such models for generic para...
[ { "created": "Fri, 18 Jan 2008 21:37:45 GMT", "version": "v1" }, { "created": "Mon, 26 May 2008 22:43:41 GMT", "version": "v2" } ]
2008-05-27
[ [ "Allman", "Elizabeth S.", "" ], [ "Rhodes", "John A.", "" ] ]
Covarion models of character evolution describe inhomogeneities in substitution processes through time. In phylogenetics, such models are used to describe changing functional constraints or selection regimes during the evolution of biological sequences. In this work the identifiability of such models for generic parame...
1707.03922
Peter Clote
Peter Clote and Amir H. Bayegan
RNA folding kinetics using Monte Carlo and Gillespie algorithms?
30 pages, 10 figures, with appendix
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
RNA secondary structure folding kinetics is known to be important for the biological function of certain processes, such as the hok/sok system in E. coli. Although linear algebra provides an exact computational solution of secondary structure folding kinetics with respect to the Turner energy model for tiny (~ 20 nt)...
[ { "created": "Wed, 12 Jul 2017 22:08:16 GMT", "version": "v1" } ]
2017-07-14
[ [ "Clote", "Peter", "" ], [ "Bayegan", "Amir H.", "" ] ]
RNA secondary structure folding kinetics is known to be important for the biological function of certain processes, such as the hok/sok system in E. coli. Although linear algebra provides an exact computational solution of secondary structure folding kinetics with respect to the Turner energy model for tiny (~ 20 nt) R...
1805.02124
Hiroshi Isshiki
Hiroshi Isshiki
Genetic Drift and Mutation
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In genetic drift of small population, it is well known that even when the ratio of alleles is 0.5, specific genes are fixed in or disappear from the population. It seems the reason why inbreeding is avoided. On the other hand, this phenomenon suggests an interesting possibility. The mutant gene does not increase the ...
[ { "created": "Sat, 5 May 2018 23:21:49 GMT", "version": "v1" } ]
2018-05-08
[ [ "Isshiki", "Hiroshi", "" ] ]
In genetic drift of small population, it is well known that even when the ratio of alleles is 0.5, specific genes are fixed in or disappear from the population. It seems the reason why inbreeding is avoided. On the other hand, this phenomenon suggests an interesting possibility. The mutant gene does not increase the nu...
2111.06115
Katharina Huber
Katharina T. Huber and Vincent Moulton and Megan Owen and Andreas Spillner and Katherine St. John
The space of equidistant phylogenetic cactuses
null
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by-nc-nd/4.0/
We introduce and investigate the space of \emph{equidistant} $X$-\emph{cactuses}. These are rooted, arc weighted, phylogenetic networks with leaf set $X$, where $X$ is a finite set of species, and all leaves have the same distance from the root. The space contains as a subset the space of ultrametric trees on $X$ tha...
[ { "created": "Thu, 11 Nov 2021 09:27:12 GMT", "version": "v1" } ]
2021-11-12
[ [ "Huber", "Katharina T.", "" ], [ "Moulton", "Vincent", "" ], [ "Owen", "Megan", "" ], [ "Spillner", "Andreas", "" ], [ "John", "Katherine St.", "" ] ]
We introduce and investigate the space of \emph{equidistant} $X$-\emph{cactuses}. These are rooted, arc weighted, phylogenetic networks with leaf set $X$, where $X$ is a finite set of species, and all leaves have the same distance from the root. The space contains as a subset the space of ultrametric trees on $X$ that ...
q-bio/0412032
Marek Cieplak
Marek Cieplak
Mechanical Stretching of Proteins: Calmodulin and Titin
To be published in a special bio-issue of Physica A; 14 figures
null
10.1016/j.physa.2004.12.032
null
q-bio.BM cond-mat.stat-mech
null
Mechanical unfolding of several domains of calmodulin and titin is studied using a Go-like model with a realistic contact map and Lennard-Jones contact interactions. It is shown that this simple model captures the experimentally observed difference between the two proteins: titin is a spring that is tough and strong ...
[ { "created": "Thu, 16 Dec 2004 16:32:37 GMT", "version": "v1" } ]
2009-11-10
[ [ "Cieplak", "Marek", "" ] ]
Mechanical unfolding of several domains of calmodulin and titin is studied using a Go-like model with a realistic contact map and Lennard-Jones contact interactions. It is shown that this simple model captures the experimentally observed difference between the two proteins: titin is a spring that is tough and strong wh...
2203.06665
Moo K. Chung
Moo K. Chung, Jamie L. Hanson, Seth D. Pollak
Statistical Analysis on Brain Surfaces
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-sa/4.0/
In this paper, we review widely used statistical analysis frameworks for data defined along cortical and subcortical surfaces that have been developed in last two decades. The cerebral cortex has the topology of a 2D highly convoluted sheet. For data obtained along curved non-Euclidean surfaces, traditional statistic...
[ { "created": "Sun, 13 Mar 2022 14:35:21 GMT", "version": "v1" } ]
2022-03-15
[ [ "Chung", "Moo K.", "" ], [ "Hanson", "Jamie L.", "" ], [ "Pollak", "Seth D.", "" ] ]
In this paper, we review widely used statistical analysis frameworks for data defined along cortical and subcortical surfaces that have been developed in last two decades. The cerebral cortex has the topology of a 2D highly convoluted sheet. For data obtained along curved non-Euclidean surfaces, traditional statistical...
2009.01060
Andrew Eckford
Hadeel Elayan, Andrew W. Eckford, and Raviraj Adve
Information Rates of Controlled Protein Interactions Using Terahertz Communication
Accepted for publication in IEEE Transactions on Nanobioscience
null
null
null
q-bio.MN cs.IT math.IT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we present a paradigm bridging electromagnetic (EM) and molecular communication through a stimuli-responsive intra-body model. It has been established that protein molecules, which play a key role in governing cell behavior, can be selectively stimulated using Terahertz (THz) band frequencies. By trigge...
[ { "created": "Wed, 2 Sep 2020 13:34:10 GMT", "version": "v1" } ]
2020-09-03
[ [ "Elayan", "Hadeel", "" ], [ "Eckford", "Andrew W.", "" ], [ "Adve", "Raviraj", "" ] ]
In this work, we present a paradigm bridging electromagnetic (EM) and molecular communication through a stimuli-responsive intra-body model. It has been established that protein molecules, which play a key role in governing cell behavior, can be selectively stimulated using Terahertz (THz) band frequencies. By triggeri...
1304.2468
Takumi Tsutaya
Takumi Tsutaya and Minoru Yoneda
WARN: an R package for quantitative reconstruction of weaning ages in archaeological populations using bone collagen nitrogen isotope ratios
18 pages, 1 table, and 3 figures
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nitrogen isotope analysis of bone collagen has been used to reconstruct the breastfeeding practices of archaeological human populations. However, weaning ages have been estimated subjectively because of a lack of both information on subadult bone collagen turnover rates and appropriate analytical models. Here, we pre...
[ { "created": "Tue, 9 Apr 2013 06:44:37 GMT", "version": "v1" } ]
2013-04-10
[ [ "Tsutaya", "Takumi", "" ], [ "Yoneda", "Minoru", "" ] ]
Nitrogen isotope analysis of bone collagen has been used to reconstruct the breastfeeding practices of archaeological human populations. However, weaning ages have been estimated subjectively because of a lack of both information on subadult bone collagen turnover rates and appropriate analytical models. Here, we prese...
1505.06956
Nadav M. Shnerb
Matan Danino and Nadav M. Shnerb
Age-abundance relationships for neutral communities
null
null
10.1103/PhysRevE.92.042706
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutral models for the dynamics of a system of competing species are used, nowadays, to describe a wide variety of empirical communities. These models are used in many situations, ranging from population genetics and ecological biodiversity to macroevolution and cancer tumors. One of the main issues discussed within ...
[ { "created": "Tue, 26 May 2015 14:00:16 GMT", "version": "v1" } ]
2015-10-28
[ [ "Danino", "Matan", "" ], [ "Shnerb", "Nadav M.", "" ] ]
Neutral models for the dynamics of a system of competing species are used, nowadays, to describe a wide variety of empirical communities. These models are used in many situations, ranging from population genetics and ecological biodiversity to macroevolution and cancer tumors. One of the main issues discussed within th...
1606.00897
Stefan Bauer
Stefan Bauer and Nicolas Carion and Peter Sch\"uffler and Thomas Fuchs and Peter Wild and Joachim M. Buhmann
Multi-Organ Cancer Classification and Survival Analysis
null
null
null
null
q-bio.QM cs.LG q-bio.TO stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Accurate and robust cell nuclei classification is the cornerstone for a wider range of tasks in digital and Computational Pathology. However, most machine learning systems require extensive labeling from expert pathologists for each individual problem at hand, with no or limited abilities for knowledge transfer betwe...
[ { "created": "Thu, 2 Jun 2016 21:09:00 GMT", "version": "v1" }, { "created": "Fri, 2 Dec 2016 20:06:14 GMT", "version": "v2" } ]
2016-12-05
[ [ "Bauer", "Stefan", "" ], [ "Carion", "Nicolas", "" ], [ "Schüffler", "Peter", "" ], [ "Fuchs", "Thomas", "" ], [ "Wild", "Peter", "" ], [ "Buhmann", "Joachim M.", "" ] ]
Accurate and robust cell nuclei classification is the cornerstone for a wider range of tasks in digital and Computational Pathology. However, most machine learning systems require extensive labeling from expert pathologists for each individual problem at hand, with no or limited abilities for knowledge transfer between...
1011.4134
John Rhodes
John A. Rhodes and Seth Sullivant
Identifiability of Large Phylogenetic Mixture Models
15 pages
null
null
null
q-bio.PE math.AG math.ST stat.TH
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Phylogenetic mixture models are statistical models of character evolution allowing for heterogeneity. Each of the classes in some unknown partition of the characters may evolve by different processes, or even along different trees. The fundamental question of whether parameters of such a model are identifiable is dif...
[ { "created": "Thu, 18 Nov 2010 04:47:20 GMT", "version": "v1" } ]
2010-11-19
[ [ "Rhodes", "John A.", "" ], [ "Sullivant", "Seth", "" ] ]
Phylogenetic mixture models are statistical models of character evolution allowing for heterogeneity. Each of the classes in some unknown partition of the characters may evolve by different processes, or even along different trees. The fundamental question of whether parameters of such a model are identifiable is diffi...
2107.05386
Herbert Sauro Dr
Herbert M. Sauro
The Practice of Ensuring Repeatable and Reproducible Computational Models
# figures
null
null
null
q-bio.OT q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent studies have shown that the majority of published computational models in systems biology and physiology are not repeatable or reproducible. There are a variety of reasons for this. One of the most likely reasons is that given how busy modern researchers are and the fact that no credit is given to authors for ...
[ { "created": "Wed, 7 Jul 2021 19:59:04 GMT", "version": "v1" } ]
2021-07-13
[ [ "Sauro", "Herbert M.", "" ] ]
Recent studies have shown that the majority of published computational models in systems biology and physiology are not repeatable or reproducible. There are a variety of reasons for this. One of the most likely reasons is that given how busy modern researchers are and the fact that no credit is given to authors for pu...
1905.01540
Justin Yeakel
Uttam Bhat and Christopher P. Kempes and Justin D. Yeakel
Scaling of the risk landscape drives optimal life history strategies and the evolution of grazing
9 pages, 5 figures, 3 Supplementary Appendices, 2 Supplementary Figures
null
10.1073/pnas.1907998117
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Consumers face numerous risks that can be minimized by incorporating different life-history strategies. How much and when a consumer adds to its energetic reserves or invests in reproduction are key behavioral and physiological adaptations that structure much of how organisms interact. Here we develop a theoretical f...
[ { "created": "Sat, 4 May 2019 18:53:29 GMT", "version": "v1" } ]
2022-10-12
[ [ "Bhat", "Uttam", "" ], [ "Kempes", "Christopher P.", "" ], [ "Yeakel", "Justin D.", "" ] ]
Consumers face numerous risks that can be minimized by incorporating different life-history strategies. How much and when a consumer adds to its energetic reserves or invests in reproduction are key behavioral and physiological adaptations that structure much of how organisms interact. Here we develop a theoretical fra...
2212.00741
Benjamin Hayden
Nisarg Desai, Praneet Bala, Rebecca Richardson, Jessica Raper, Jan Zimmermann, Benjamin Hayden
OpenApePose: a database of annotated ape photographs for pose estimation
null
null
null
null
q-bio.QM cs.CV
http://creativecommons.org/licenses/by/4.0/
Because of their close relationship with humans, non-human apes (chimpanzees, bonobos, gorillas, orangutans, and gibbons, including siamangs) are of great scientific interest. The goal of understanding their complex behavior would be greatly advanced by the ability to perform video-based pose tracking. Tracking, howe...
[ { "created": "Wed, 30 Nov 2022 16:53:18 GMT", "version": "v1" }, { "created": "Fri, 22 Sep 2023 14:53:04 GMT", "version": "v2" } ]
2023-09-25
[ [ "Desai", "Nisarg", "" ], [ "Bala", "Praneet", "" ], [ "Richardson", "Rebecca", "" ], [ "Raper", "Jessica", "" ], [ "Zimmermann", "Jan", "" ], [ "Hayden", "Benjamin", "" ] ]
Because of their close relationship with humans, non-human apes (chimpanzees, bonobos, gorillas, orangutans, and gibbons, including siamangs) are of great scientific interest. The goal of understanding their complex behavior would be greatly advanced by the ability to perform video-based pose tracking. Tracking, howeve...
2201.01855
Xu Wang
XU Wang and Huan Zhao and Weiwei TU and Hao Li and Yu Sun and Xiaochen Bo
Graph Neural Networks for Double-Strand DNA Breaks Prediction
null
null
null
null
q-bio.QM cs.AI cs.LG
http://creativecommons.org/licenses/by/4.0/
Double-strand DNA breaks (DSBs) are a form of DNA damage that can cause abnormal chromosomal rearrangements. Recent technologies based on high-throughput experiments have obvious high costs and technical challenges.Therefore, we design a graph neural network based method to predict DSBs (GraphDSB), using DNA sequence...
[ { "created": "Tue, 4 Jan 2022 08:40:08 GMT", "version": "v1" } ]
2022-01-07
[ [ "Wang", "XU", "" ], [ "Zhao", "Huan", "" ], [ "TU", "Weiwei", "" ], [ "Li", "Hao", "" ], [ "Sun", "Yu", "" ], [ "Bo", "Xiaochen", "" ] ]
Double-strand DNA breaks (DSBs) are a form of DNA damage that can cause abnormal chromosomal rearrangements. Recent technologies based on high-throughput experiments have obvious high costs and technical challenges.Therefore, we design a graph neural network based method to predict DSBs (GraphDSB), using DNA sequence f...
1204.3683
Balaji Sriram
Balaji Sriram and Pamela Reinagel
Strong surround antagonism in the dLGN of the awake rat
29 pages, 6 figures
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Classical center-surround antagonism in the early visual system is thought to serve important functions such as enhancing edge detection and increasing sparseness. The relative strength of the center and surround determine the specific computation achieved. For example, weak surrounds achieve low-pass spatial frequen...
[ { "created": "Tue, 17 Apr 2012 01:46:27 GMT", "version": "v1" } ]
2012-04-18
[ [ "Sriram", "Balaji", "" ], [ "Reinagel", "Pamela", "" ] ]
Classical center-surround antagonism in the early visual system is thought to serve important functions such as enhancing edge detection and increasing sparseness. The relative strength of the center and surround determine the specific computation achieved. For example, weak surrounds achieve low-pass spatial frequency...
2207.03523
Mikail Khona
Mikail Khona, Sarthak Chandra, Joy J. Ma, Ila Fiete
Winning the lottery with neural connectivity constraints: faster learning across cognitive tasks with spatially constrained sparse RNNs
12 pages, 5 main text figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Recurrent neural networks (RNNs) are often used to model circuits in the brain, and can solve a variety of difficult computational problems requiring memory, error-correction, or selection [Hopfield, 1982, Maass et al., 2002, Maass, 2011]. However, fully-connected RNNs contrast structurally with their biological coun...
[ { "created": "Thu, 7 Jul 2022 18:37:29 GMT", "version": "v1" }, { "created": "Mon, 29 May 2023 19:49:38 GMT", "version": "v2" } ]
2023-05-31
[ [ "Khona", "Mikail", "" ], [ "Chandra", "Sarthak", "" ], [ "Ma", "Joy J.", "" ], [ "Fiete", "Ila", "" ] ]
Recurrent neural networks (RNNs) are often used to model circuits in the brain, and can solve a variety of difficult computational problems requiring memory, error-correction, or selection [Hopfield, 1982, Maass et al., 2002, Maass, 2011]. However, fully-connected RNNs contrast structurally with their biological counte...
2306.16819
Kai Yi
Kai Yi, Bingxin Zhou, Yiqing Shen, Pietro Li\`o, Yu Guang Wang
Graph Denoising Diffusion for Inverse Protein Folding
NeurIPS 2023
null
null
null
q-bio.QM cs.AI
http://creativecommons.org/licenses/by/4.0/
Inverse protein folding is challenging due to its inherent one-to-many mapping characteristic, where numerous possible amino acid sequences can fold into a single, identical protein backbone. This task involves not only identifying viable sequences but also representing the sheer diversity of potential solutions. How...
[ { "created": "Thu, 29 Jun 2023 09:55:30 GMT", "version": "v1" }, { "created": "Tue, 7 Nov 2023 08:28:11 GMT", "version": "v2" } ]
2023-11-08
[ [ "Yi", "Kai", "" ], [ "Zhou", "Bingxin", "" ], [ "Shen", "Yiqing", "" ], [ "Liò", "Pietro", "" ], [ "Wang", "Yu Guang", "" ] ]
Inverse protein folding is challenging due to its inherent one-to-many mapping characteristic, where numerous possible amino acid sequences can fold into a single, identical protein backbone. This task involves not only identifying viable sequences but also representing the sheer diversity of potential solutions. Howev...
1603.03238
Pierre Casadebaig
Victor Picheny and Pierre Casadebaig and Ronan Tr\'epos and Robert Faivre and David Da Silva and Patrick Vincourt and Evelyne Costes
Using numerical plant models and phenotypic correlation space to design achievable ideotypes
25 pages, 5 figures, 2017, Plant, Cell and Environment
null
10.1111/pce.13001
null
q-bio.QM q-bio.PE
http://creativecommons.org/licenses/by/4.0/
Numerical plant models can predict the outcome of plant traits modifications resulting from genetic variations, on plant performance, by simulating physiological processes and their interaction with the environment. Optimization methods complement those models to design ideotypes, i.e. ideal values of a set of plant ...
[ { "created": "Thu, 10 Mar 2016 12:43:04 GMT", "version": "v1" }, { "created": "Thu, 15 Sep 2016 12:33:11 GMT", "version": "v2" }, { "created": "Mon, 19 Jun 2017 07:42:58 GMT", "version": "v3" } ]
2017-06-20
[ [ "Picheny", "Victor", "" ], [ "Casadebaig", "Pierre", "" ], [ "Trépos", "Ronan", "" ], [ "Faivre", "Robert", "" ], [ "Da Silva", "David", "" ], [ "Vincourt", "Patrick", "" ], [ "Costes", "Evelyne", "" ] ]
Numerical plant models can predict the outcome of plant traits modifications resulting from genetic variations, on plant performance, by simulating physiological processes and their interaction with the environment. Optimization methods complement those models to design ideotypes, i.e. ideal values of a set of plant tr...
2206.11233
Navid Ghassemi
Parisa Moridian, Navid Ghassemi, Mahboobeh Jafari, Salam Salloum-Asfar, Delaram Sadeghi, Marjane Khodatars, Afshin Shoeibi, Abbas Khosravi, Sai Ho Ling, Abdulhamit Subasi, Roohallah Alizadehsani, Juan M. Gorriz, Sara A Abdulla, U. Rajendra Acharya
Automatic autism spectrum disorder detection using artificial intelligence methods with MRI neuroimaging: A review
null
Moridian, et. al., Automatic autism spectrum disorder detection using artificial intelligence methods with MRI neuroimaging: A review, Frontiers in Molecular Neuroscience, Volume 15, 2022
10.3389/fnmol.2022.999605
null
q-bio.NC cs.LG eess.IV
http://creativecommons.org/licenses/by-nc-nd/4.0/
Autism spectrum disorder (ASD) is a brain condition characterized by diverse signs and symptoms that appear in early childhood. ASD is also associated with communication deficits and repetitive behavior in affected individuals. Various ASD detection methods have been developed, including neuroimaging modalities and p...
[ { "created": "Mon, 20 Jun 2022 16:14:21 GMT", "version": "v1" }, { "created": "Sun, 17 Jul 2022 09:39:33 GMT", "version": "v2" }, { "created": "Thu, 6 Oct 2022 15:58:56 GMT", "version": "v3" } ]
2022-10-07
[ [ "Moridian", "Parisa", "" ], [ "Ghassemi", "Navid", "" ], [ "Jafari", "Mahboobeh", "" ], [ "Salloum-Asfar", "Salam", "" ], [ "Sadeghi", "Delaram", "" ], [ "Khodatars", "Marjane", "" ], [ "Shoeibi", "Afshin", ...
Autism spectrum disorder (ASD) is a brain condition characterized by diverse signs and symptoms that appear in early childhood. ASD is also associated with communication deficits and repetitive behavior in affected individuals. Various ASD detection methods have been developed, including neuroimaging modalities and psy...
2106.02785
Kenji Doya
Kenji Doya
Canonical Cortical Circuits and the Duality of Bayesian Inference and Optimal Control
13 pages, 3 figure
Current Opinion in Behavioral Sciences, 41, 160-166 (2021)
10.1016/j.cobeha.2021.07.003
null
q-bio.NC
http://creativecommons.org/licenses/by-sa/4.0/
The duality of sensory inference and motor control has been known since the 1960s and has recently been recognized as the commonality in computations required for the posterior distributions in Bayesian inference and the value functions in optimal control. Meanwhile, an intriguing question about the brain is why the ...
[ { "created": "Sat, 5 Jun 2021 03:23:13 GMT", "version": "v1" }, { "created": "Sat, 3 Jul 2021 22:13:31 GMT", "version": "v2" } ]
2021-10-12
[ [ "Doya", "Kenji", "" ] ]
The duality of sensory inference and motor control has been known since the 1960s and has recently been recognized as the commonality in computations required for the posterior distributions in Bayesian inference and the value functions in optimal control. Meanwhile, an intriguing question about the brain is why the en...
1810.04726
Sergei Maslov
Veronika Dubinkina, Yulia Fridman, Parth Pandey, and Sergei Maslov
Alternative stable states in a model of microbial community limited by multiple essential nutrients
null
null
null
null
q-bio.PE physics.bio-ph
http://creativecommons.org/licenses/by/4.0/
Microbial communities routinely have several alternative stable states observed for the same environmental parameters. Sudden and irreversible transitions between these states make external manipulation of these systems more complicated. To better understand the mechanisms and origins of multistability in microbial c...
[ { "created": "Wed, 10 Oct 2018 19:44:47 GMT", "version": "v1" } ]
2018-10-12
[ [ "Dubinkina", "Veronika", "" ], [ "Fridman", "Yulia", "" ], [ "Pandey", "Parth", "" ], [ "Maslov", "Sergei", "" ] ]
Microbial communities routinely have several alternative stable states observed for the same environmental parameters. Sudden and irreversible transitions between these states make external manipulation of these systems more complicated. To better understand the mechanisms and origins of multistability in microbial com...
0803.0635
Luca Sbano
Markus Kirkilionis and Luca Sbano
An Averaging Principle for Combined Interaction Graphs. Part I: Connectivity and Applications to Genetic Switches
To appear in Advances in Complex Systems
null
null
null
q-bio.MN math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Time-continuous dynamical systems defined on graphs are often used to model complex systems with many interacting components in a non-spatial context. In the reverse sense attaching meaningful dynamics to given 'interaction diagrams' is a central bottleneck problem in many application areas, especially in cell biolog...
[ { "created": "Wed, 5 Mar 2008 11:14:55 GMT", "version": "v1" }, { "created": "Tue, 18 Mar 2008 13:57:55 GMT", "version": "v2" }, { "created": "Thu, 1 Jul 2010 10:04:29 GMT", "version": "v3" } ]
2010-07-02
[ [ "Kirkilionis", "Markus", "" ], [ "Sbano", "Luca", "" ] ]
Time-continuous dynamical systems defined on graphs are often used to model complex systems with many interacting components in a non-spatial context. In the reverse sense attaching meaningful dynamics to given 'interaction diagrams' is a central bottleneck problem in many application areas, especially in cell biology ...
2303.15552
Christine Heitsch
Forrest Hurley and Christine Heitsch
RNAprofiling 2.0: Enhanced cluster analysis of structural ensembles
9 pages, 2 figures; supplement 6 pages, 3 figures, 1 table
null
10.1016/j.jmb.2023.168047
null
q-bio.BM
http://creativecommons.org/licenses/by-nc-nd/4.0/
Understanding the base pairing of an RNA sequence provides insight into its molecular structure.By mining suboptimal sampling data, RNAprofiling 1.0 identifies the dominant helices in low-energy secondary structures as features, organizes them into profiles which partition the Boltzmann sample, and highlights key sim...
[ { "created": "Mon, 27 Mar 2023 19:10:37 GMT", "version": "v1" } ]
2023-03-29
[ [ "Hurley", "Forrest", "" ], [ "Heitsch", "Christine", "" ] ]
Understanding the base pairing of an RNA sequence provides insight into its molecular structure.By mining suboptimal sampling data, RNAprofiling 1.0 identifies the dominant helices in low-energy secondary structures as features, organizes them into profiles which partition the Boltzmann sample, and highlights key simil...
1406.3828
Conor Smyth
Conor Smyth, Iva \v{S}pakulova, Owen Cotton-Barratt, Sajjad Rafiq, William Tapper, Rosanna Upstill-Goddard, John L. Hopper, Enes Makalic, Daniel F. Schmidt, Miroslav Kapuscinski, J\"org Fliege, Andrew Collins, Jacek Brodzki, Diana M. Eccles, Ben D. MacArthur
Genome disorder and breast cancer susceptibility
null
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many common diseases have a complex genetic basis in which large numbers of genetic variations combine with environmental and lifestyle factors to determine risk. However, quantifying such polygenic effects and their relationship to disease risk has been challenging. In order to address these difficulties we develope...
[ { "created": "Sun, 15 Jun 2014 15:47:35 GMT", "version": "v1" } ]
2014-06-17
[ [ "Smyth", "Conor", "" ], [ "Špakulova", "Iva", "" ], [ "Cotton-Barratt", "Owen", "" ], [ "Rafiq", "Sajjad", "" ], [ "Tapper", "William", "" ], [ "Upstill-Goddard", "Rosanna", "" ], [ "Hopper", "John L.", "" ...
Many common diseases have a complex genetic basis in which large numbers of genetic variations combine with environmental and lifestyle factors to determine risk. However, quantifying such polygenic effects and their relationship to disease risk has been challenging. In order to address these difficulties we developed ...
2211.01313
Michael Levin
Joel Grodstein, Michael Levin
Closing the Loop on Morphogenesis: A Mathematical Model of Morphogenesis by Closed-Loop Reaction-Diffusion
20 pages, 3 tables, 5 figures
null
null
null
q-bio.MN q-bio.CB q-bio.QM q-bio.SC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Morphogenesis, the establishment and repair of emergent complex anatomy by groups of cells, is a fascinating and biomedically-relevant problem. One of its most fascinating aspects is that a developing embryo can reliably recover from disturbances, such as splitting into twins. While this reliability implies some type...
[ { "created": "Wed, 2 Nov 2022 17:35:53 GMT", "version": "v1" } ]
2022-11-03
[ [ "Grodstein", "Joel", "" ], [ "Levin", "Michael", "" ] ]
Morphogenesis, the establishment and repair of emergent complex anatomy by groups of cells, is a fascinating and biomedically-relevant problem. One of its most fascinating aspects is that a developing embryo can reliably recover from disturbances, such as splitting into twins. While this reliability implies some type o...
1805.09774
Dorian Florescu Dr
Dorian Florescu, Daniel Coca
Learning with precise spike times: A new decoding algorithm for liquid state machines
34 pages, 7 figures
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There is extensive evidence that biological neural networks encode information in the precise timing of the spikes generated and transmitted by neurons, which offers several advantages over rate-based codes. Here we adopt a vector space formulation of spike train sequences and introduce a new liquid state machine (LS...
[ { "created": "Thu, 24 May 2018 16:52:59 GMT", "version": "v1" }, { "created": "Sat, 13 Jul 2019 22:50:09 GMT", "version": "v2" } ]
2019-07-16
[ [ "Florescu", "Dorian", "" ], [ "Coca", "Daniel", "" ] ]
There is extensive evidence that biological neural networks encode information in the precise timing of the spikes generated and transmitted by neurons, which offers several advantages over rate-based codes. Here we adopt a vector space formulation of spike train sequences and introduce a new liquid state machine (LSM)...
2108.04820
Thi Ngan Dong
Thi Ngan Dong and Megha Khosla
MuCoMiD: A Multitask Convolutional Learning Framework for miRNA-Disease Association Prediction
null
null
null
null
q-bio.QM cs.LG
http://creativecommons.org/licenses/by/4.0/
Growing evidence from recent studies implies that microRNA or miRNA could serve as biomarkers in various complex human diseases. Since wet-lab experiments are expensive and time-consuming, computational techniques for miRNA-disease association prediction have attracted a lot of attention in recent years. Data scarcit...
[ { "created": "Sun, 8 Aug 2021 10:01:46 GMT", "version": "v1" }, { "created": "Sun, 21 Nov 2021 13:57:22 GMT", "version": "v2" }, { "created": "Mon, 29 Nov 2021 09:37:28 GMT", "version": "v3" } ]
2021-11-30
[ [ "Dong", "Thi Ngan", "" ], [ "Khosla", "Megha", "" ] ]
Growing evidence from recent studies implies that microRNA or miRNA could serve as biomarkers in various complex human diseases. Since wet-lab experiments are expensive and time-consuming, computational techniques for miRNA-disease association prediction have attracted a lot of attention in recent years. Data scarcity ...
1401.3587
Mahashweta Basu
Mahashweta Basu
Communities of dense weighted networks: MicroRNA co-target network as an example
14 pages, 6 eps figures
null
null
null
q-bio.MN physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Complex networks are intrinsically modular. Resolving small modules is particularly difficult when the network is densely connected; wide variation of link weights invites additional complexities. In this article we present an algorithm to detect community structure in densely connected weighted networks. First, modu...
[ { "created": "Wed, 15 Jan 2014 13:52:47 GMT", "version": "v1" } ]
2014-01-16
[ [ "Basu", "Mahashweta", "" ] ]
Complex networks are intrinsically modular. Resolving small modules is particularly difficult when the network is densely connected; wide variation of link weights invites additional complexities. In this article we present an algorithm to detect community structure in densely connected weighted networks. First, modula...
2302.05338
Cameron Smith
Ximo Pechuan-Jorge, Raymond S. Puzio, Cameron Smith
Algebraic structure of hierarchic first-order reaction networks applicable to models of clone size distribution and stochastic gene expression
9 pages
null
null
null
q-bio.MN math-ph math.MP math.PR q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In biology, stochastic branching processes with a two-stage, hierarchical structure arise in the study of population dynamics, gene expression, and phylogenetic inference. These models have been commonly analyzed using generating functions, the method of characteristics and various perturbative approximations. Here w...
[ { "created": "Thu, 2 Feb 2023 21:19:12 GMT", "version": "v1" } ]
2023-02-13
[ [ "Pechuan-Jorge", "Ximo", "" ], [ "Puzio", "Raymond S.", "" ], [ "Smith", "Cameron", "" ] ]
In biology, stochastic branching processes with a two-stage, hierarchical structure arise in the study of population dynamics, gene expression, and phylogenetic inference. These models have been commonly analyzed using generating functions, the method of characteristics and various perturbative approximations. Here we ...
1409.1838
Christopher Lester
Christopher Lester, Christian A. Yates, Michael B. Giles, Ruth E. Baker
An adaptive multi-level simulation algorithm for stochastic biological systems
23 pages
J. Chem. Phys. 142, 024113 (2015)
10.1063/1.4904980
null
q-bio.QM q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Discrete-state, continuous-time Markov models are widely used in the modeling of biochemical reaction networks. Their complexity often precludes analytic solution, and we rely on stochastic simulation algorithms to estimate system statistics. The Gillespie algorithm is exact, but computationally costly as it simulate...
[ { "created": "Fri, 5 Sep 2014 15:31:17 GMT", "version": "v1" }, { "created": "Fri, 12 Dec 2014 15:18:47 GMT", "version": "v2" } ]
2016-05-20
[ [ "Lester", "Christopher", "" ], [ "Yates", "Christian A.", "" ], [ "Giles", "Michael B.", "" ], [ "Baker", "Ruth E.", "" ] ]
Discrete-state, continuous-time Markov models are widely used in the modeling of biochemical reaction networks. Their complexity often precludes analytic solution, and we rely on stochastic simulation algorithms to estimate system statistics. The Gillespie algorithm is exact, but computationally costly as it simulates ...
1403.6171
Timothy Phan
Timothy S. Phan, John K-J. Li
Propagation of Uncertainty and Analysis of Signal-to-Noise in Nonlinear Compliance Estimations of an Arterial System Model
Conference on Information Sciences and Systems (CISS) 2014
null
null
null
q-bio.QM q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The arterial system dynamically loads the heart through changes in arterial compliance. The pressure-volume relation of arteries is known to be nonlinear, but arterial compliance is often modeled as a constant value, due to ease of estimation and interpretation. Incorporating nonlinear arterial compliance affords ins...
[ { "created": "Mon, 24 Mar 2014 22:24:57 GMT", "version": "v1" } ]
2014-03-26
[ [ "Phan", "Timothy S.", "" ], [ "Li", "John K-J.", "" ] ]
The arterial system dynamically loads the heart through changes in arterial compliance. The pressure-volume relation of arteries is known to be nonlinear, but arterial compliance is often modeled as a constant value, due to ease of estimation and interpretation. Incorporating nonlinear arterial compliance affords insig...
1405.1611
Karsten Kruse
L. Wettmann, M. Bonny, K. Kruse
Bistable protein distributions in rod-shaped bacteria
13 pages, 6 figures
null
null
null
q-bio.SC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The distributions of many proteins in rod-shaped bacteria are far from homogenous. Often they accumulate at the cell poles or in the cell center. At the same time, the copy number of proteins in a single cell is relatively small making the patterns noisy. To explore limits to protein patterns due to molecular noise, ...
[ { "created": "Wed, 7 May 2014 14:16:24 GMT", "version": "v1" } ]
2014-05-08
[ [ "Wettmann", "L.", "" ], [ "Bonny", "M.", "" ], [ "Kruse", "K.", "" ] ]
The distributions of many proteins in rod-shaped bacteria are far from homogenous. Often they accumulate at the cell poles or in the cell center. At the same time, the copy number of proteins in a single cell is relatively small making the patterns noisy. To explore limits to protein patterns due to molecular noise, we...
2206.14706
Diego Ferreiro
Ignacio E. S\'anchez, Ezequiel A. Galpern, Mart\'in M. Garibaldi, Diego U. Ferreiro
Molecular information theory meets protein folding
33pages, 2 figures, plus supporting information
null
null
null
q-bio.BM cs.IT math.IT
http://creativecommons.org/licenses/by-nc-sa/4.0/
We propose an application of molecular information theory to analyze the folding of single domain proteins. We analyze results from various areas of protein science, such as sequence-based potentials, reduced amino acid alphabets, backbone configurational entropy, secondary structure content, residue burial layers, a...
[ { "created": "Wed, 29 Jun 2022 15:16:10 GMT", "version": "v1" } ]
2022-06-30
[ [ "Sánchez", "Ignacio E.", "" ], [ "Galpern", "Ezequiel A.", "" ], [ "Garibaldi", "Martín M.", "" ], [ "Ferreiro", "Diego U.", "" ] ]
We propose an application of molecular information theory to analyze the folding of single domain proteins. We analyze results from various areas of protein science, such as sequence-based potentials, reduced amino acid alphabets, backbone configurational entropy, secondary structure content, residue burial layers, and...
2004.06916
Edilson Arruda
L. Tarrataca, C.M. Dias, D. B. Haddad, and E. F. Arruda
Flattening the curves: on-off lock-down strategies for COVID-19 with an application to Brazi
null
null
10.1186/s13362-020-00098-w
null
q-bio.PE cs.LG cs.SY eess.SY q-bio.QM stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The current COVID-19 pandemic is affecting different countries in different ways. The assortment of reporting techniques alongside other issues, such as underreporting and budgetary constraints, makes predicting the spread and lethality of the virus a challenging task. This work attempts to gain a better understandin...
[ { "created": "Wed, 15 Apr 2020 07:37:08 GMT", "version": "v1" } ]
2021-01-08
[ [ "Tarrataca", "L.", "" ], [ "Dias", "C. M.", "" ], [ "Haddad", "D. B.", "" ], [ "Arruda", "E. F.", "" ] ]
The current COVID-19 pandemic is affecting different countries in different ways. The assortment of reporting techniques alongside other issues, such as underreporting and budgetary constraints, makes predicting the spread and lethality of the virus a challenging task. This work attempts to gain a better understanding ...
1806.08634
Juan Eugenio Iglesias
Juan Eugenio Iglesias, Ricardo Insausti, Garikoitz Lerma-Usabiaga, Martina Bocchetta, Koen Van Leemput, Douglas N Greve, Andre van der Kouwe, Bruce Fischl, Cesar Caballero-Gaudes, Pedro M Paz-Alonso
A probabilistic atlas of the human thalamic nuclei combining ex vivo MRI and histology
null
null
null
null
q-bio.NC cs.CV physics.med-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The human thalamus is a brain structure that comprises numerous, highly specific nuclei. Since these nuclei are known to have different functions and to be connected to different areas of the cerebral cortex, it is of great interest for the neuroimaging community to study their volume, shape and connectivity in vivo ...
[ { "created": "Fri, 22 Jun 2018 12:42:37 GMT", "version": "v1" } ]
2018-06-25
[ [ "Iglesias", "Juan Eugenio", "" ], [ "Insausti", "Ricardo", "" ], [ "Lerma-Usabiaga", "Garikoitz", "" ], [ "Bocchetta", "Martina", "" ], [ "Van Leemput", "Koen", "" ], [ "Greve", "Douglas N", "" ], [ "van der Kouwe"...
The human thalamus is a brain structure that comprises numerous, highly specific nuclei. Since these nuclei are known to have different functions and to be connected to different areas of the cerebral cortex, it is of great interest for the neuroimaging community to study their volume, shape and connectivity in vivo wi...
1804.01203
Min Xu
Yixiu Zhao, Xiangrui Zeng, Qiang Guo, Min Xu
An integration of fast alignment and maximum-likelihood methods for electron subtomogram averaging and classification
17 pages
Intelligent Systems for Molecular Biology (ISMB) 2018, Bioinformatics
10.1093/bioinformatics/bty267
null
q-bio.QM cs.CV stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: Cellular Electron CryoTomography (CECT) is an emerging 3D imaging technique that visualizes subcellular organization of single cells at submolecular resolution and in near-native state. CECT captures large numbers of macromolecular complexes of highly diverse structures and abundances. However, the struct...
[ { "created": "Wed, 4 Apr 2018 01:16:20 GMT", "version": "v1" } ]
2018-05-16
[ [ "Zhao", "Yixiu", "" ], [ "Zeng", "Xiangrui", "" ], [ "Guo", "Qiang", "" ], [ "Xu", "Min", "" ] ]
Motivation: Cellular Electron CryoTomography (CECT) is an emerging 3D imaging technique that visualizes subcellular organization of single cells at submolecular resolution and in near-native state. CECT captures large numbers of macromolecular complexes of highly diverse structures and abundances. However, the structur...
1411.2136
Alexander Mathis
Alexander Mathis and Martin B. Stemmler and Andreas V.M. Herz
Probable nature of higher-dimensional symmetries underlying mammalian grid-cell activity patterns
12 pages, 6 figures
null
10.7554/eLife.05979
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lattices abound in nature - from the crystal structure of minerals to the honey-comb organization of ommatidia in the compound eye of insects. Such regular arrangements provide solutions for optimally dense packings, efficient resource distribution and cryptographic schemes, highlighting the importance of lattice the...
[ { "created": "Sat, 8 Nov 2014 16:37:00 GMT", "version": "v1" } ]
2015-05-12
[ [ "Mathis", "Alexander", "" ], [ "Stemmler", "Martin B.", "" ], [ "Herz", "Andreas V. M.", "" ] ]
Lattices abound in nature - from the crystal structure of minerals to the honey-comb organization of ommatidia in the compound eye of insects. Such regular arrangements provide solutions for optimally dense packings, efficient resource distribution and cryptographic schemes, highlighting the importance of lattice theor...
0911.1066
Mireille Regnier
Anatoly Ivashchenko, Galina Boldina, Aizhan Turmagambetova, Mireille R\'egnier
Using profiles based on hydropathy properties to define essential regions for splicing
null
International Journal of Biological Sciences (2009) 10 p
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We define new profiles based on hydropathy properties and point out specific profiles for regions surrounding splice sites. We built a set T of flanking regions of genes with 1-3 introns from 21st and 22nd chromosomes. These genes contained 313 introns and 385 exons and were extracted from GenBank. They were used in ...
[ { "created": "Thu, 5 Nov 2009 16:04:23 GMT", "version": "v1" } ]
2009-11-06
[ [ "Ivashchenko", "Anatoly", "" ], [ "Boldina", "Galina", "" ], [ "Turmagambetova", "Aizhan", "" ], [ "Régnier", "Mireille", "" ] ]
We define new profiles based on hydropathy properties and point out specific profiles for regions surrounding splice sites. We built a set T of flanking regions of genes with 1-3 introns from 21st and 22nd chromosomes. These genes contained 313 introns and 385 exons and were extracted from GenBank. They were used in or...
1911.08188
Matteo De Rosa
Michela Bollati, Emanuele Scalone, Francesco Bon\`i, Eloise Mastrangelo, Toni Giorgino, Mario Milani, Matteo de Rosa
High-resolution crystal structure of gelsolin domain 2 in complex with the physiological calcium ion
null
Biochem Biophys Res Commun. 2019 Oct 8;518(1):94-99
10.1016/j.bbrc.2019.08.013
null
q-bio.BM
http://creativecommons.org/licenses/by-nc-sa/4.0/
The second domain of gelsolin (G2) hosts mutations responsible for a hereditary form of amyloidosis. The active form of gelsolin is Ca2+-bound; it is also a dynamic protein, hence structural biologists often rely on the study of the isolated G2. However, the wild type G2 structure that have been used so far in compar...
[ { "created": "Tue, 19 Nov 2019 10:08:27 GMT", "version": "v1" } ]
2019-11-20
[ [ "Bollati", "Michela", "" ], [ "Scalone", "Emanuele", "" ], [ "Bonì", "Francesco", "" ], [ "Mastrangelo", "Eloise", "" ], [ "Giorgino", "Toni", "" ], [ "Milani", "Mario", "" ], [ "de Rosa", "Matteo", "" ] ...
The second domain of gelsolin (G2) hosts mutations responsible for a hereditary form of amyloidosis. The active form of gelsolin is Ca2+-bound; it is also a dynamic protein, hence structural biologists often rely on the study of the isolated G2. However, the wild type G2 structure that have been used so far in comparat...
0810.4099
Vahid Rezania
Vahid Rezania and Jack Tuszynski
A first principle (3+1) dimensional model for microtubule polymerization
12 pages, 2 figures. Accepted in Physics Letters A
Physics Letters A 372 (2008) 7051--7056
10.1016/j.physleta.2008.10.038
null
q-bio.QM cond-mat.stat-mech q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we propose a microscopic model to study the polymerization of microtubules (MTs). Starting from fundamental reactions during MT's assembly and disassembly processes, we systematically derive a nonlinear system of equations that determines the dynamics of microtubules in 3D. %coexistence with tubulin dim...
[ { "created": "Wed, 22 Oct 2008 15:57:35 GMT", "version": "v1" } ]
2009-11-13
[ [ "Rezania", "Vahid", "" ], [ "Tuszynski", "Jack", "" ] ]
In this paper we propose a microscopic model to study the polymerization of microtubules (MTs). Starting from fundamental reactions during MT's assembly and disassembly processes, we systematically derive a nonlinear system of equations that determines the dynamics of microtubules in 3D. %coexistence with tubulin dimer...
1312.1673
David McCandlish
David M. McCandlish, Charles L. Epstein, and Joshua B. Plotkin
Formal properties of the probability of fixation: identities, inequalities and approximations
Minor edits; added appendix
Theoretical Population Biology, 99: 98-113 (2015)
10.1016/j.tpb.2014.11.004
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The formula for the probability of fixation of a new mutation is widely used in theoretical population genetics and molecular evolution. Here we derive a series of identities, inequalities and approximations for the exact probability of fixation of a new mutation under the Moran process (equivalent results hold for t...
[ { "created": "Thu, 5 Dec 2013 20:27:01 GMT", "version": "v1" }, { "created": "Tue, 28 Jan 2014 20:13:47 GMT", "version": "v2" }, { "created": "Wed, 26 Feb 2014 19:48:58 GMT", "version": "v3" }, { "created": "Thu, 10 Apr 2014 22:00:44 GMT", "version": "v4" } ]
2015-03-10
[ [ "McCandlish", "David M.", "" ], [ "Epstein", "Charles L.", "" ], [ "Plotkin", "Joshua B.", "" ] ]
The formula for the probability of fixation of a new mutation is widely used in theoretical population genetics and molecular evolution. Here we derive a series of identities, inequalities and approximations for the exact probability of fixation of a new mutation under the Moran process (equivalent results hold for the...
1412.2786
Guowei Wei
Kristopher Opron and Kelin Xia and Guo-Wei Wei
Fast and Anisotropic Flexibility-Rigidity Index
10 figures and 50 references
Journal of Chemical Physics, 140(23), 234105, (2014)
10.1063/1.4882258
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flexibility-rigidity index (FRI) is a newly proposed method for the construction of atomic rigidity functions. The FRI method analyzes protein rigidity and flexibility and is capable of predicting protein B-factors without resorting to matrix diagonalization. A fundamental assumption used in the FRI is that prote...
[ { "created": "Mon, 8 Dec 2014 21:46:23 GMT", "version": "v1" } ]
2014-12-10
[ [ "Opron", "Kristopher", "" ], [ "Xia", "Kelin", "" ], [ "Wei", "Guo-Wei", "" ] ]
The flexibility-rigidity index (FRI) is a newly proposed method for the construction of atomic rigidity functions. The FRI method analyzes protein rigidity and flexibility and is capable of predicting protein B-factors without resorting to matrix diagonalization. A fundamental assumption used in the FRI is that protein...
1609.07068
Yujiang Wang
Yujiang Wang, Andrew J Trevelyan, Antonio Valentin, Gonzalo Alarcon, Peter N Taylor, Marcus Kaiser
Mechanisms underlying different onset patterns of focal seizures
null
PLOS Computational Biology 2017 13(5): e1005475
10.1371/journal.pcbi.1005475
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Focal seizures are episodes of pathological brain activity that appear to arise from a localised area of the brain. The onset patterns of focal seizure activity have been studied intensively, and they have largely been distinguished into two types - low amplitude fast oscillations (LAF), or high amplitude spikes (HAS...
[ { "created": "Thu, 22 Sep 2016 17:03:08 GMT", "version": "v1" }, { "created": "Fri, 5 May 2017 13:20:15 GMT", "version": "v2" } ]
2017-05-08
[ [ "Wang", "Yujiang", "" ], [ "Trevelyan", "Andrew J", "" ], [ "Valentin", "Antonio", "" ], [ "Alarcon", "Gonzalo", "" ], [ "Taylor", "Peter N", "" ], [ "Kaiser", "Marcus", "" ] ]
Focal seizures are episodes of pathological brain activity that appear to arise from a localised area of the brain. The onset patterns of focal seizure activity have been studied intensively, and they have largely been distinguished into two types - low amplitude fast oscillations (LAF), or high amplitude spikes (HAS)....
2104.08989
Sara Clifton
Kylie J Landa, Lauren M Mossman, Rachel J Whitaker, Zoi Rapti, Sara M Clifton
Phage-antibiotic synergy inhibited by temperate and chronic virus competition
23 pages, 5 figures, 3 tables. arXiv admin note: text overlap with arXiv:1911.07233
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
As antibiotic resistance grows more frequent for common bacterial infections, alternative treatment strategies such as phage therapy have become more widely studied in the medical field. While many studies have explored the efficacy of antibiotics, phage therapy, or synergistic combinations of phages and antibiotics,...
[ { "created": "Mon, 19 Apr 2021 00:43:21 GMT", "version": "v1" } ]
2021-04-20
[ [ "Landa", "Kylie J", "" ], [ "Mossman", "Lauren M", "" ], [ "Whitaker", "Rachel J", "" ], [ "Rapti", "Zoi", "" ], [ "Clifton", "Sara M", "" ] ]
As antibiotic resistance grows more frequent for common bacterial infections, alternative treatment strategies such as phage therapy have become more widely studied in the medical field. While many studies have explored the efficacy of antibiotics, phage therapy, or synergistic combinations of phages and antibiotics, t...
1411.6341
Brandon Barker
Brandon Barker, Lin Xu, Zhenglong Gu
Dynamic Epistasis under Varying Environmental Perturbations
22 pages, 9 figures
PLoS ONE 10(1): e0114911
10.1371/journal.pone.0114911
null
q-bio.MN q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Epistasis describes the phenomenon that mutations at different loci do not have independent effects with regard to certain phenotypes. Understanding the global epistatic landscape is vital for many genetic and evolutionary theories. Current knowledge for epistatic dynamics under multiple conditions is limited by the ...
[ { "created": "Mon, 24 Nov 2014 03:36:11 GMT", "version": "v1" } ]
2015-02-11
[ [ "Barker", "Brandon", "" ], [ "Xu", "Lin", "" ], [ "Gu", "Zhenglong", "" ] ]
Epistasis describes the phenomenon that mutations at different loci do not have independent effects with regard to certain phenotypes. Understanding the global epistatic landscape is vital for many genetic and evolutionary theories. Current knowledge for epistatic dynamics under multiple conditions is limited by the te...
2109.08898
Deeptajyoti Sen Dr.
Deeptajyoti Sen, Andrew Morozov, S. Ghorai and Malay Banerjee
Bifurcation analysis of the predator-prey model with the Allee effect in the predator
null
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
The use of predator-prey models in theoretical ecology has a long history, and the model equations have largely evolved since the original Lotka-Volterra system towards more realistic descriptions of the processes of predation, reproduction and mortality. One important aspect is the recognition of the fact that the g...
[ { "created": "Sat, 18 Sep 2021 10:44:35 GMT", "version": "v1" } ]
2021-09-21
[ [ "Sen", "Deeptajyoti", "" ], [ "Morozov", "Andrew", "" ], [ "Ghorai", "S.", "" ], [ "Banerjee", "Malay", "" ] ]
The use of predator-prey models in theoretical ecology has a long history, and the model equations have largely evolved since the original Lotka-Volterra system towards more realistic descriptions of the processes of predation, reproduction and mortality. One important aspect is the recognition of the fact that the gro...
1410.0930
Octavio Miramontes
Octavio Miramontes, Og DeSouza, Leticia Ribeiro Paiva, Alessandra Marins and Sirio Orozco
L\'evy flights and self-similar exploratory behaviour of termite workers: beyond model fitting
13 pages, 11 figures. Unrevised version. Final version to appear in Plos ONE
null
10.1371/journal.pone.0111183
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Animal movements have been related to optimal foraging strategies where self-similar trajectories are central. Most of the experimental studies done so far have focused mainly on fitting statistical models to data in order to test for movement patterns described by power-laws. Here we show by analyzing over half a mi...
[ { "created": "Fri, 3 Oct 2014 18:06:02 GMT", "version": "v1" } ]
2015-06-23
[ [ "Miramontes", "Octavio", "" ], [ "DeSouza", "Og", "" ], [ "Paiva", "Leticia Ribeiro", "" ], [ "Marins", "Alessandra", "" ], [ "Orozco", "Sirio", "" ] ]
Animal movements have been related to optimal foraging strategies where self-similar trajectories are central. Most of the experimental studies done so far have focused mainly on fitting statistical models to data in order to test for movement patterns described by power-laws. Here we show by analyzing over half a mill...
1411.6684
Feng Fu
Feng Fu, Martin A. Nowak, and Sebastian Bonhoeffer
Spatial heterogeneity in drug concentrations can facilitate the emergence of resistance to cancer therapy
Collaborations on further followup work are extremely welcome. Please see contact details at http://www.tb.ethz.ch/people/person-detail.html?persid=189998
null
10.1371/journal.pcbi.1004142
null
q-bio.PE q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Acquired resistance is one of the major barriers to successful cancer therapy. The development of resistance is commonly attributed to genetic heterogeneity. However, heterogeneity of drug penetration of the tumor microenvironment both on the microscopic level within solid tumors as well as on the macroscopic level a...
[ { "created": "Mon, 24 Nov 2014 23:19:50 GMT", "version": "v1" } ]
2015-08-19
[ [ "Fu", "Feng", "" ], [ "Nowak", "Martin A.", "" ], [ "Bonhoeffer", "Sebastian", "" ] ]
Acquired resistance is one of the major barriers to successful cancer therapy. The development of resistance is commonly attributed to genetic heterogeneity. However, heterogeneity of drug penetration of the tumor microenvironment both on the microscopic level within solid tumors as well as on the macroscopic level acr...
2008.12473
Xianggen Liu
Xianggen Liu, Yunan Luo, Sen Song and Jian Peng
Pre-training of Graph Neural Network for Modeling Effects of Mutations on Protein-Protein Binding Affinity
null
null
10.1371/journal.pcbi.1009284
null
q-bio.BM cs.LG q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Modeling the effects of mutations on the binding affinity plays a crucial role in protein engineering and drug design. In this study, we develop a novel deep learning based framework, named GraphPPI, to predict the binding affinity changes upon mutations based on the features provided by a graph neural network (GNN)....
[ { "created": "Fri, 28 Aug 2020 04:07:39 GMT", "version": "v1" } ]
2021-09-15
[ [ "Liu", "Xianggen", "" ], [ "Luo", "Yunan", "" ], [ "Song", "Sen", "" ], [ "Peng", "Jian", "" ] ]
Modeling the effects of mutations on the binding affinity plays a crucial role in protein engineering and drug design. In this study, we develop a novel deep learning based framework, named GraphPPI, to predict the binding affinity changes upon mutations based on the features provided by a graph neural network (GNN). I...
1603.01794
Pu Tian
Kai Wang, Lanru Liu and Pu Tian
Utility of potential energy span as an approximate free energy proxy
18 pages, 8 figures
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Free energy calculation is critical in predictive tasks such as protein folding, docking and design. However, rigorous calculation of free energy change is prohibitively expensive in these practical applications. The minimum potential energy is therefore widely utilized to approximate free energy. In this study, base...
[ { "created": "Sun, 6 Mar 2016 06:26:28 GMT", "version": "v1" } ]
2016-03-08
[ [ "Wang", "Kai", "" ], [ "Liu", "Lanru", "" ], [ "Tian", "Pu", "" ] ]
Free energy calculation is critical in predictive tasks such as protein folding, docking and design. However, rigorous calculation of free energy change is prohibitively expensive in these practical applications. The minimum potential energy is therefore widely utilized to approximate free energy. In this study, based ...
2304.14799
Agustina Fragueiro
Agustina Fragueiro (EMPENN), Giorgia Committeri (Ud'A), Claire Cury (EMPENN)
Incomplete hippocampal inversion and hippocampal subfield volumes: Implementation and inter-reliability of automatic segmentation
null
null
null
null
q-bio.NC eess.IV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The incomplete hippocampal inversion (IHI) is an atypical anatomical pattern of the hippocampus. However, the hippocampus is not a homogeneous structure, as it consists of segregated subfields with specific characteristics. While IHI is not related to whole hippocampal volume, higher IHI scores have been associated t...
[ { "created": "Fri, 28 Apr 2023 12:16:56 GMT", "version": "v1" } ]
2023-05-01
[ [ "Fragueiro", "Agustina", "", "EMPENN" ], [ "Committeri", "Giorgia", "", "Ud'A" ], [ "Cury", "Claire", "", "EMPENN" ] ]
The incomplete hippocampal inversion (IHI) is an atypical anatomical pattern of the hippocampus. However, the hippocampus is not a homogeneous structure, as it consists of segregated subfields with specific characteristics. While IHI is not related to whole hippocampal volume, higher IHI scores have been associated to ...
0807.4765
Corey S. O'Hern
Aitziber L. Cortajarena, Gregg Lois, Eilon Sherman, Corey S. O'Hern, Lynne Regan, and Gilad Haran
Non-random coil behavior as a consequence of extensive PPII structure in the denatured state
32 pages, 4 figures, 1 table
J. Mol. Biol. 382, 203 (2008)
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Unfolded proteins may contain native or non-native residual structure, which has important implications for the thermodynamics and kinetics of folding as well as for misfolding and aggregation diseases. However, it has been universally accepted that residual structure should not affect the global size scaling of the ...
[ { "created": "Wed, 30 Jul 2008 01:26:19 GMT", "version": "v1" } ]
2008-09-12
[ [ "Cortajarena", "Aitziber L.", "" ], [ "Lois", "Gregg", "" ], [ "Sherman", "Eilon", "" ], [ "O'Hern", "Corey S.", "" ], [ "Regan", "Lynne", "" ], [ "Haran", "Gilad", "" ] ]
Unfolded proteins may contain native or non-native residual structure, which has important implications for the thermodynamics and kinetics of folding as well as for misfolding and aggregation diseases. However, it has been universally accepted that residual structure should not affect the global size scaling of the de...
2206.15158
Gerald Cooray PhD
Gerald Cooray, Richard Rosch, Karl Friston
Global dynamics of neural mass models
40 pages, 8 figures
null
null
null
q-bio.NC q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Neural mass models are used to simulate cortical dynamics and to explain the electrical and magnetic fields measured using electro- and magnetoencephalography. Simulations evince a complex phase-space structure for these kinds of models; including stationary points and limit cycles and the possibility for bifurcation...
[ { "created": "Thu, 30 Jun 2022 09:44:15 GMT", "version": "v1" }, { "created": "Tue, 23 Aug 2022 19:16:54 GMT", "version": "v2" } ]
2022-08-25
[ [ "Cooray", "Gerald", "" ], [ "Rosch", "Richard", "" ], [ "Friston", "Karl", "" ] ]
Neural mass models are used to simulate cortical dynamics and to explain the electrical and magnetic fields measured using electro- and magnetoencephalography. Simulations evince a complex phase-space structure for these kinds of models; including stationary points and limit cycles and the possibility for bifurcations ...
2405.07858
Prajwal Ghimire
Prajwal Ghimire, Ben Kinnersley, Golestan Karami, Prabhu Arumugam, Richard Houlston, Keyoumars Ashkan, Marc Modat, Thomas C Booth
Radiogenomic biomarkers for immunotherapy in glioblastoma: A systematic review of magnetic resonance imaging studies
Published in Neuro-Oncology Advances 2024
null
10.1093/noajnl/vdae055
null
q-bio.TO
http://creativecommons.org/licenses/by/4.0/
Immunotherapy is an effective precision medicine treatment for several cancers. Imaging signatures of the underlying genome (radiogenomics) in glioblastoma patients may serve as preoperative biomarkers of the tumor-host immune apparatus. Validated biomarkers would have the potential to stratify patients during immuno...
[ { "created": "Mon, 13 May 2024 15:44:40 GMT", "version": "v1" } ]
2024-05-14
[ [ "Ghimire", "Prajwal", "" ], [ "Kinnersley", "Ben", "" ], [ "Karami", "Golestan", "" ], [ "Arumugam", "Prabhu", "" ], [ "Houlston", "Richard", "" ], [ "Ashkan", "Keyoumars", "" ], [ "Modat", "Marc", "" ], ...
Immunotherapy is an effective precision medicine treatment for several cancers. Imaging signatures of the underlying genome (radiogenomics) in glioblastoma patients may serve as preoperative biomarkers of the tumor-host immune apparatus. Validated biomarkers would have the potential to stratify patients during immunoth...
0710.5195
Herbert Sauro Dr
Herbert M Sauro and Brian Ingalls
MAPK Cascades as Feedback Amplifiers
21 pages and 8 figures
null
null
null
q-bio.MN q-bio.SC
null
Interconvertible enzyme cascades, exemplified by the mitogen activated protein kinase (MAPK) cascade, are a frequent mechanism in signal transduction pathways. There has been much speculation as to the role of these pathways, and how their structure is related to their function. A common conclusion is that the cascad...
[ { "created": "Fri, 26 Oct 2007 23:38:14 GMT", "version": "v1" } ]
2007-10-30
[ [ "Sauro", "Herbert M", "" ], [ "Ingalls", "Brian", "" ] ]
Interconvertible enzyme cascades, exemplified by the mitogen activated protein kinase (MAPK) cascade, are a frequent mechanism in signal transduction pathways. There has been much speculation as to the role of these pathways, and how their structure is related to their function. A common conclusion is that the cascades...
1906.07917
Vikas Desai
Sai Vikas Desai, Vineeth N Balasubramanian, Tokihiro Fukatsu, Seishi Ninomiya and Wei Guo
Automatic estimation of heading date of paddy rice using deep learning
null
null
10.1186/s13007-019-0457-1
null
q-bio.QM cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Accurate estimation of heading date of paddy rice greatly helps the breeders to understand the adaptability of different crop varieties in a given location. The heading date also plays a vital role in determining grain yield for research experiments. Visual examination of the crop is laborious and time consuming. The...
[ { "created": "Wed, 19 Jun 2019 05:02:43 GMT", "version": "v1" } ]
2019-08-08
[ [ "Desai", "Sai Vikas", "" ], [ "Balasubramanian", "Vineeth N", "" ], [ "Fukatsu", "Tokihiro", "" ], [ "Ninomiya", "Seishi", "" ], [ "Guo", "Wei", "" ] ]
Accurate estimation of heading date of paddy rice greatly helps the breeders to understand the adaptability of different crop varieties in a given location. The heading date also plays a vital role in determining grain yield for research experiments. Visual examination of the crop is laborious and time consuming. There...
1012.1808
Joachim Krug
Alexander Altland, Andrej Fischer, Joachim Krug, and Ivan G. Szendro
Rare events in population genetics: Stochastic tunneling in a two-locus model with recombination
4 pages, 3 figures
Physical Review Letters 106 (2011) 088101
10.1103/PhysRevLett.106.088101
null
q-bio.PE cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the evolution of a population in a two-locus genotype space, in which the negative effects of two single mutations are overcompensated in a high fitness double mutant. We discuss how the interplay of finite population size, $N$, and sexual recombination at rate $r$ affects the escape times $t_\mathrm{esc}$ t...
[ { "created": "Wed, 8 Dec 2010 17:05:13 GMT", "version": "v1" }, { "created": "Tue, 22 Feb 2011 16:41:38 GMT", "version": "v2" } ]
2011-02-23
[ [ "Altland", "Alexander", "" ], [ "Fischer", "Andrej", "" ], [ "Krug", "Joachim", "" ], [ "Szendro", "Ivan G.", "" ] ]
We study the evolution of a population in a two-locus genotype space, in which the negative effects of two single mutations are overcompensated in a high fitness double mutant. We discuss how the interplay of finite population size, $N$, and sexual recombination at rate $r$ affects the escape times $t_\mathrm{esc}$ to ...
1609.01015
Arian Ashourvan
Arian Ashourvan, Shi Gu, Marcelo G. Mattar, Jean M. Vettel, Danielle S. Bassett
The Energy Landscape Underpinning Module Dynamics in the Human Brain Connectome
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Human brain dynamics can be profitably viewed through the lens of statistical mechanics, where neurophysiological activity evolves around and between local attractors representing preferred mental states. Many physically-inspired models of these dynamics define the state of the brain based on instantaneous measuremen...
[ { "created": "Mon, 5 Sep 2016 01:51:59 GMT", "version": "v1" } ]
2016-09-06
[ [ "Ashourvan", "Arian", "" ], [ "Gu", "Shi", "" ], [ "Mattar", "Marcelo G.", "" ], [ "Vettel", "Jean M.", "" ], [ "Bassett", "Danielle S.", "" ] ]
Human brain dynamics can be profitably viewed through the lens of statistical mechanics, where neurophysiological activity evolves around and between local attractors representing preferred mental states. Many physically-inspired models of these dynamics define the state of the brain based on instantaneous measurements...
2208.02564
Tongyue Shi
Tongyue Shi and Haining Wang
Mathematical Modeling Analysis and Optimization of Fungal Diversity Growth
19 pages
null
null
null
q-bio.PE math.OC
http://creativecommons.org/licenses/by/4.0/
This paper studied the relationship between the decomposition rate of fungi and temperature, humidity, fungus elongation, moisture tolerance and fungus density in a given volume in the presence of a variety of fungi, and established a series of models to describe the decomposition of fungi in different states. Since ...
[ { "created": "Thu, 4 Aug 2022 10:13:52 GMT", "version": "v1" } ]
2022-08-05
[ [ "Shi", "Tongyue", "" ], [ "Wang", "Haining", "" ] ]
This paper studied the relationship between the decomposition rate of fungi and temperature, humidity, fungus elongation, moisture tolerance and fungus density in a given volume in the presence of a variety of fungi, and established a series of models to describe the decomposition of fungi in different states. Since th...
1507.04416
Iaroslav Ispolatov
Iaroslav Ispolatov, Vaibhav Madhok, and Michael Doebeli
Individual-Based models for adaptive diversification in high-dimensional phenotype spaces
23 pages, 7 figures, please open pdf with Acrobat to see movies
J. Theor. Biol, 390 (2016) 97-105
10.1016/j.jtbi.2015.10.009
null
q-bio.PE cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Most theories of evolutionary diversification are based on equilibrium assumptions: they are either based on optimality arguments involving static fitness landscapes, or they assume that populations first evolve to an equilibrium state before diversification occurs, as exemplified by the concept of evolutionary branc...
[ { "created": "Thu, 16 Jul 2015 00:07:19 GMT", "version": "v1" } ]
2017-02-07
[ [ "Ispolatov", "Iaroslav", "" ], [ "Madhok", "Vaibhav", "" ], [ "Doebeli", "Michael", "" ] ]
Most theories of evolutionary diversification are based on equilibrium assumptions: they are either based on optimality arguments involving static fitness landscapes, or they assume that populations first evolve to an equilibrium state before diversification occurs, as exemplified by the concept of evolutionary branchi...