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1608.03464
Alan Paris
Alan Paris, George Atia, Azadeh Vosoughi, Stephen Berman
A New Statistical Model of Electroencephalogram Noise Spectra for Real-time Brain-Computer Interfaces
Revised submission to IEEE EMBS Trans. Biomed. Eng. 12 pages, 9 figures
null
10.1109/TBME.2016.2606595
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
$Objective$: A characteristic of neurological signal processing is high levels of noise from sub-cellular ion channels up to whole-brain processes. In this paper, we propose a new model of electroencephalogram (EEG) background periodograms, based on a family of functions which we call generalized van der Ziel--McWhor...
[ { "created": "Sun, 24 Jul 2016 06:36:59 GMT", "version": "v1" } ]
2016-11-17
[ [ "Paris", "Alan", "" ], [ "Atia", "George", "" ], [ "Vosoughi", "Azadeh", "" ], [ "Berman", "Stephen", "" ] ]
$Objective$: A characteristic of neurological signal processing is high levels of noise from sub-cellular ion channels up to whole-brain processes. In this paper, we propose a new model of electroencephalogram (EEG) background periodograms, based on a family of functions which we call generalized van der Ziel--McWhorte...
1510.03224
Matteo Figliuzzi
Matteo Figliuzzi, Herv\'e Jacquier, Alexander Schug, Olivier Tenaillon, Martin Weigt
Coevolutionary landscape inference and the context-dependence of mutations in beta-lactamase TEM-1
14 pages, 5 figures. Supplementary files on the publisher's website: http://mbe.oxfordjournals.org/content/early/2015/10/06/molbev.msv211.short?rss=1
Mol Biol Evol (2015) doi: 10.1093/molbev/msv211
10.1093/molbev/msv211
null
q-bio.QM cond-mat.stat-mech q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quantitative characterization of mutational landscapes is a task of outstanding importance in evolutionary and medical biology: It is, e.g., of central importance for our understanding of the phenotypic effect of mutations related to disease and antibiotic drug resistance. Here we develop a novel inference scheme...
[ { "created": "Mon, 12 Oct 2015 11:05:22 GMT", "version": "v1" } ]
2015-10-13
[ [ "Figliuzzi", "Matteo", "" ], [ "Jacquier", "Hervé", "" ], [ "Schug", "Alexander", "" ], [ "Tenaillon", "Olivier", "" ], [ "Weigt", "Martin", "" ] ]
The quantitative characterization of mutational landscapes is a task of outstanding importance in evolutionary and medical biology: It is, e.g., of central importance for our understanding of the phenotypic effect of mutations related to disease and antibiotic drug resistance. Here we develop a novel inference scheme f...
0902.2404
Eugene Shakhnovich
Muyoung Heo, Louis Kang and Eugene Shakhnovich
Adaptation through stochastic switching into transient mutators in finite asexual populations
null
null
null
null
q-bio.BM q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The importance of mutator clones in the adaptive evolution of asexual populations is not fully understood. Here we address this problem by using an ab initio microscopic model of living cells, whose fitness is derived directly from their genomes using a biophysically realistic model of protein folding and interaction...
[ { "created": "Fri, 13 Feb 2009 22:10:40 GMT", "version": "v1" } ]
2009-02-17
[ [ "Heo", "Muyoung", "" ], [ "Kang", "Louis", "" ], [ "Shakhnovich", "Eugene", "" ] ]
The importance of mutator clones in the adaptive evolution of asexual populations is not fully understood. Here we address this problem by using an ab initio microscopic model of living cells, whose fitness is derived directly from their genomes using a biophysically realistic model of protein folding and interactions ...
2006.12536
Yannick Tchaptchie Kouakep
S. Y. Tchoumi, Y. T. Kouakep, D. J. Fotsa Mbogne, J. C. Kamgang, J. M. Tchuenche
Optimal Control of a Malaria Model with Long-Lasting Insecticide-Treated Nets
Submitted to a scientific journal
null
null
null
q-bio.PE math.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A deterministic multi-stage malaria model with a non-therapeutic control measure, the use of mosquito bednet is formulated and analyzed. The model basic reproduction number is derived, and analytical results show that the models equilibria are locally and globally asymptotically stable when certain threshold conditio...
[ { "created": "Mon, 22 Jun 2020 18:06:57 GMT", "version": "v1" }, { "created": "Sat, 18 Jul 2020 11:11:11 GMT", "version": "v2" } ]
2020-07-21
[ [ "Tchoumi", "S. Y.", "" ], [ "Kouakep", "Y. T.", "" ], [ "Mbogne", "D. J. Fotsa", "" ], [ "Kamgang", "J. C.", "" ], [ "Tchuenche", "J. M.", "" ] ]
A deterministic multi-stage malaria model with a non-therapeutic control measure, the use of mosquito bednet is formulated and analyzed. The model basic reproduction number is derived, and analytical results show that the models equilibria are locally and globally asymptotically stable when certain threshold conditions...
0906.5028
Mari Watanabe
Tomofumi Kimotsuki (Saint Louis University), Noriko Niwa (Washington Univ. St. Louis), Martin N. Hicks (Glasgow University), Michael Dunne (Glasgow University), Stuart M. Cobbe (Glasgow University), Mari A. Watanabe (Saint Louis University)
Isoprenaline increases Excursive Restitution Slope in the Conscious Rabbit with Ischaemic Heart Failure
27 pages
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background: An increased QT/RR slope is hypothesized to be predictive of sudden cardiac death after myocardial infarction. Previous studies have shown that beta-adrenergic stimulation increases QT/RR slope, but the effects of beta-adrenergic stimulation on QT/RR slope in heart failure are unknown. Methods: New Zealan...
[ { "created": "Sat, 27 Jun 2009 02:31:20 GMT", "version": "v1" } ]
2009-06-30
[ [ "Kimotsuki", "Tomofumi", "", "Saint Louis University" ], [ "Niwa", "Noriko", "", "Washington\n Univ. St. Louis" ], [ "Hicks", "Martin N.", "", "Glasgow University" ], [ "Dunne", "Michael", "", "Glasgow University" ], [ "Cobbe", ...
Background: An increased QT/RR slope is hypothesized to be predictive of sudden cardiac death after myocardial infarction. Previous studies have shown that beta-adrenergic stimulation increases QT/RR slope, but the effects of beta-adrenergic stimulation on QT/RR slope in heart failure are unknown. Methods: New Zealand ...
1301.7254
Michael B\"orsch
Nawid Zarrabi, Caterina Clausen, Monika G. Dueser, Michael Boersch
Manipulating freely diffusing single 20-nm particles in an Anti-Brownian Electrokinetic Trap (ABELtrap)
11 pages, 6 figures
null
10.1117/12.2002952
null
q-bio.QM physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Conformational changes of individual fluorescently labeled proteins can be followed in solution using a confocal microscope. Two fluorophores attached to selected domains of the protein report fluctuating conformations. Based on F\"orster resonance energy transfer (FRET) between these fluorophores on a single protein...
[ { "created": "Wed, 30 Jan 2013 15:22:13 GMT", "version": "v1" } ]
2015-06-12
[ [ "Zarrabi", "Nawid", "" ], [ "Clausen", "Caterina", "" ], [ "Dueser", "Monika G.", "" ], [ "Boersch", "Michael", "" ] ]
Conformational changes of individual fluorescently labeled proteins can be followed in solution using a confocal microscope. Two fluorophores attached to selected domains of the protein report fluctuating conformations. Based on F\"orster resonance energy transfer (FRET) between these fluorophores on a single protein, ...
0911.0215
Manuel Rivas
Manuel A. Rivas, Mark J. Daly, Itsik Pe'er
Age, Sex, and Genetic Architecture of Human Gene Expression in EBV Transformed Cell Lines
27 pages, 3 figures
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Individual expression profiles from EBV transformed cell lines are an emerging resource for genomic investigation. In this study we characterize the effects of age, sex, and genetic variation on gene expression by surveying public datasets of such profiles. We establish that the expression space of cell lines maintai...
[ { "created": "Sun, 1 Nov 2009 23:17:06 GMT", "version": "v1" } ]
2009-11-03
[ [ "Rivas", "Manuel A.", "" ], [ "Daly", "Mark J.", "" ], [ "Pe'er", "Itsik", "" ] ]
Individual expression profiles from EBV transformed cell lines are an emerging resource for genomic investigation. In this study we characterize the effects of age, sex, and genetic variation on gene expression by surveying public datasets of such profiles. We establish that the expression space of cell lines maintains...
1305.7411
Jiapu Zhang
Jiapu Zhang
The Methicillin-Resistant Staphylococcus Aureus Infection Controls
null
Journal Review of Bioinformatics and Biometrics (RBB) 2(4), pp.83-87 (2013)
null
null
q-bio.OT
http://creativecommons.org/licenses/by-nc-sa/3.0/
Multi-resistant organisms (MROs), the bacteria that are resistant to a number of different antibiotics, have been very popular around the world in recent years. They are very difficult to treat but highly infectious in humans. MRSA (Methicillin-Resistant Staphylococcus Aureus) is one of the MROs. It is believed that ...
[ { "created": "Thu, 30 May 2013 12:33:57 GMT", "version": "v1" } ]
2013-12-09
[ [ "Zhang", "Jiapu", "" ] ]
Multi-resistant organisms (MROs), the bacteria that are resistant to a number of different antibiotics, have been very popular around the world in recent years. They are very difficult to treat but highly infectious in humans. MRSA (Methicillin-Resistant Staphylococcus Aureus) is one of the MROs. It is believed that in...
1509.02816
John Platig
John Platig, Peter Castaldi, Dawn DeMeo, and John Quackenbush
Bipartite Community Structure of eQTLs
null
null
10.1371/journal.pcbi.1005033
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Genome Wide Association Studies (GWAS) and eQTL analyses have produced a large and growing number of genetic associations linked to a wide range of human phenotypes. As of 2013, there were more than 11,000 SNPs associated with a trait as reported in the NHGRI GWAS Catalog. However, interpreting the functional roles p...
[ { "created": "Wed, 9 Sep 2015 15:52:09 GMT", "version": "v1" } ]
2016-09-28
[ [ "Platig", "John", "" ], [ "Castaldi", "Peter", "" ], [ "DeMeo", "Dawn", "" ], [ "Quackenbush", "John", "" ] ]
Genome Wide Association Studies (GWAS) and eQTL analyses have produced a large and growing number of genetic associations linked to a wide range of human phenotypes. As of 2013, there were more than 11,000 SNPs associated with a trait as reported in the NHGRI GWAS Catalog. However, interpreting the functional roles pla...
1508.00613
Maria Kochugaeva
Martin Lange, Maria Kochugaeva and Anatoly B. Kolomeisky
Protein search for multiple targets on DNA
null
null
10.1063/1.4930113
null
q-bio.SC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein-DNA interactions are crucial for all biological processes. One of the most important fundamental aspects of these interactions is the process of protein searching and recognizing specific binding sites on DNA. A large number of experimental and theoretical investigations have been devoted to uncovering the mo...
[ { "created": "Mon, 3 Aug 2015 22:21:11 GMT", "version": "v1" } ]
2015-09-30
[ [ "Lange", "Martin", "" ], [ "Kochugaeva", "Maria", "" ], [ "Kolomeisky", "Anatoly B.", "" ] ]
Protein-DNA interactions are crucial for all biological processes. One of the most important fundamental aspects of these interactions is the process of protein searching and recognizing specific binding sites on DNA. A large number of experimental and theoretical investigations have been devoted to uncovering the mole...
q-bio/0603036
Otger Camp\`as
Otger Campas, Jaume Casademunt, Ignacio Pagonabarraga
Dynamic stability of spindles controlled by molecular motor kinetics
4 pages, 3 figures
null
null
null
q-bio.SC physics.bio-ph
null
We analyze the role of the force-dependent kinetics of motor proteins in the stability of antiparallel arrays of polar filaments, such as those in the mitotic spindle. We determine the possible stable structures and show that there exists an instability associated to the collective behavior of motors that leads to th...
[ { "created": "Thu, 30 Mar 2006 19:11:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Campas", "Otger", "" ], [ "Casademunt", "Jaume", "" ], [ "Pagonabarraga", "Ignacio", "" ] ]
We analyze the role of the force-dependent kinetics of motor proteins in the stability of antiparallel arrays of polar filaments, such as those in the mitotic spindle. We determine the possible stable structures and show that there exists an instability associated to the collective behavior of motors that leads to the ...
1401.6207
Huisheng Liu
Huisheng Liu, Hua Bai, Enfu Hui, Lu Yang, Chantell Evans, Zhao Wang, Sung Kwon, and Edwin Chapman
Synaptotagmin 7 Functions as a Ca2+-sensor for Synaptic Vesicle Replenishment
41 pages, 17 Figures
null
10.7554/eLife.01524
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Synaptotagmin (syt) 7 is one of three syt isoforms found in all metazoans; it is ubiquitously expressed, yet its function in neurons remains obscure. Here, we resolved Ca2+-dependent and Ca2+-independent synaptic vesicle (SV) replenishment pathways, and found that syt 7 plays a selective and critical role in the Ca2+...
[ { "created": "Thu, 23 Jan 2014 22:48:27 GMT", "version": "v1" } ]
2014-01-27
[ [ "Liu", "Huisheng", "" ], [ "Bai", "Hua", "" ], [ "Hui", "Enfu", "" ], [ "Yang", "Lu", "" ], [ "Evans", "Chantell", "" ], [ "Wang", "Zhao", "" ], [ "Kwon", "Sung", "" ], [ "Chapman", "Edwin", ...
Synaptotagmin (syt) 7 is one of three syt isoforms found in all metazoans; it is ubiquitously expressed, yet its function in neurons remains obscure. Here, we resolved Ca2+-dependent and Ca2+-independent synaptic vesicle (SV) replenishment pathways, and found that syt 7 plays a selective and critical role in the Ca2+-d...
2104.02881
Seung Ki Baek
Sanghun Lee, Yohsuke Murase, and Seung Ki Baek
Local stability of cooperation in a continuous model of indirect reciprocity
13 pages, 3 figures
Sci. Rep. 11, 14225 (2021)
10.1038/s41598-021-93598-7
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Reputation is a powerful mechanism to enforce cooperation among unrelated individuals through indirect reciprocity, but it suffers from disagreement originating from private assessment, noise, and incomplete information. In this work, we investigate stability of cooperation in the donation game by regarding each play...
[ { "created": "Wed, 7 Apr 2021 03:14:22 GMT", "version": "v1" }, { "created": "Fri, 9 Jul 2021 13:18:57 GMT", "version": "v2" } ]
2021-07-12
[ [ "Lee", "Sanghun", "" ], [ "Murase", "Yohsuke", "" ], [ "Baek", "Seung Ki", "" ] ]
Reputation is a powerful mechanism to enforce cooperation among unrelated individuals through indirect reciprocity, but it suffers from disagreement originating from private assessment, noise, and incomplete information. In this work, we investigate stability of cooperation in the donation game by regarding each player...
2307.00253
Rahul Biswas
Rahul Biswas and SuryaNarayana Sripada
Application of Time-Aware PC algorithm to compute Causal Functional Connectivity in Alzheimer's Disease from fMRI data
null
null
null
null
q-bio.NC q-bio.QM stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Functional Connectivity between brain regions is known to be altered in Alzheimer's disease, and promises to be a biomarker for early diagnosis of the disease. While several approaches for functional connectivity obtain an un-directed network representing stochastic associations (correlations) between brain regions, ...
[ { "created": "Sat, 1 Jul 2023 07:20:04 GMT", "version": "v1" }, { "created": "Tue, 20 Feb 2024 00:18:19 GMT", "version": "v2" } ]
2024-02-21
[ [ "Biswas", "Rahul", "" ], [ "Sripada", "SuryaNarayana", "" ] ]
Functional Connectivity between brain regions is known to be altered in Alzheimer's disease, and promises to be a biomarker for early diagnosis of the disease. While several approaches for functional connectivity obtain an un-directed network representing stochastic associations (correlations) between brain regions, as...
q-bio/0603021
Ovidiu Radulescu
O.Radulescu, A.Siegel, E. Pecou, and S.Lagarrigue
A model for regulated fatty acid metabolism in liver; equilibria and their changes
null
null
null
null
q-bio.CB
null
We build a model for the hepatic fatty acid metabolism and its metabolic and genetic regulations. The model has two functioning modes: synthesis and oxidation of fatty acids. We provide a sufficient condition (the strong lipolytic condition) for the uniqueness of its equilibrium. Under this condition, modifications o...
[ { "created": "Sat, 18 Mar 2006 22:30:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Radulescu", "O.", "" ], [ "Siegel", "A.", "" ], [ "Pecou", "E.", "" ], [ "Lagarrigue", "S.", "" ] ]
We build a model for the hepatic fatty acid metabolism and its metabolic and genetic regulations. The model has two functioning modes: synthesis and oxidation of fatty acids. We provide a sufficient condition (the strong lipolytic condition) for the uniqueness of its equilibrium. Under this condition, modifications of ...
2011.08024
Shailaja Akella
Shailaja Akella, Ali Mohebi, Kiersten Riels, Andreas Keil, Karim Oweiss, Jose C. Principe
Local power estimation of neuromodulations using point process modeling
6 pages
null
null
null
q-bio.NC eess.SP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Extracellular electrical potentials (EEP) recorded from the brain are an active manifestation of all cellular processes that propagate within a volume of brain tissue. A standard approach for their quantification are power spectral analyses methods that reflect the global distribution of signal power over frequency. ...
[ { "created": "Mon, 16 Nov 2020 15:20:33 GMT", "version": "v1" } ]
2020-11-17
[ [ "Akella", "Shailaja", "" ], [ "Mohebi", "Ali", "" ], [ "Riels", "Kiersten", "" ], [ "Keil", "Andreas", "" ], [ "Oweiss", "Karim", "" ], [ "Principe", "Jose C.", "" ] ]
Extracellular electrical potentials (EEP) recorded from the brain are an active manifestation of all cellular processes that propagate within a volume of brain tissue. A standard approach for their quantification are power spectral analyses methods that reflect the global distribution of signal power over frequency. Ho...
0903.4491
Aleksandra Walczak
Gasper Tkacik, Aleksandra M. Walczak, and William Bialek
Optimizing information flow in small genetic networks. I
null
Phys. Rev. E 80, 031920 (2009)
10.1103/PhysRevE.80.031920
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In order to survive, reproduce and (in multicellular organisms) differentiate, cells must control the concentrations of the myriad different proteins that are encoded in the genome. The precision of this control is limited by the inevitable randomness of individual molecular events. Here we explore how cells can maxi...
[ { "created": "Thu, 26 Mar 2009 00:12:20 GMT", "version": "v1" }, { "created": "Sun, 1 Nov 2009 22:39:25 GMT", "version": "v2" } ]
2013-08-01
[ [ "Tkacik", "Gasper", "" ], [ "Walczak", "Aleksandra M.", "" ], [ "Bialek", "William", "" ] ]
In order to survive, reproduce and (in multicellular organisms) differentiate, cells must control the concentrations of the myriad different proteins that are encoded in the genome. The precision of this control is limited by the inevitable randomness of individual molecular events. Here we explore how cells can maximi...
1509.08158
Sara Clifton
Sara M. Clifton, Rosemary I. Braun, Daniel M. Abrams
Handicap principle implies emergence of dimorphic mating displays
7 pages, 4 figures, supplementary information included
Proceedings of the Royal Society B 283, 1970: November 30 2016
10.1098/rspb.2016.1970
null
q-bio.PE math.DS nlin.AO physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Species spanning the animal kingdom have evolved extravagant and costly ornaments to attract mating partners. Zahavi's handicap principle offers an elegant explanation for this: ornaments signal individual quality, and must be costly to ensure honest signalling, making mate selection more efficient. Here we incorpora...
[ { "created": "Sun, 27 Sep 2015 22:35:32 GMT", "version": "v1" }, { "created": "Mon, 9 May 2016 18:20:21 GMT", "version": "v2" }, { "created": "Tue, 1 Nov 2016 00:44:29 GMT", "version": "v3" } ]
2016-12-02
[ [ "Clifton", "Sara M.", "" ], [ "Braun", "Rosemary I.", "" ], [ "Abrams", "Daniel M.", "" ] ]
Species spanning the animal kingdom have evolved extravagant and costly ornaments to attract mating partners. Zahavi's handicap principle offers an elegant explanation for this: ornaments signal individual quality, and must be costly to ensure honest signalling, making mate selection more efficient. Here we incorporate...
1809.02849
Eli Cornblath
Eli J. Cornblath, Arian Ashourvan, Jason Z. Kim, Richard F. Betzel, Rastko Ciric, Azeez Adebimpe, Graham L. Baum, Xiaosong He, Kosha Ruparel, Tyler M. Moore, Ruben C. Gur, Raquel E. Gur, Russell T. Shinohara, David R. Roalf, Theodore D. Satterthwaite, and Danielle S. Bassett
Temporal sequences of brain activity at rest are constrained by white matter structure and modulated by cognitive demands
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A diverse white matter network and finely tuned neuronal membrane properties allow the brain to transition seamlessly between cognitive states. However, it remains unclear how static structural connections guide the temporal progression of large-scale brain activity patterns in different cognitive states. Here, we an...
[ { "created": "Sat, 8 Sep 2018 18:14:29 GMT", "version": "v1" }, { "created": "Mon, 30 Sep 2019 23:14:02 GMT", "version": "v2" } ]
2019-10-02
[ [ "Cornblath", "Eli J.", "" ], [ "Ashourvan", "Arian", "" ], [ "Kim", "Jason Z.", "" ], [ "Betzel", "Richard F.", "" ], [ "Ciric", "Rastko", "" ], [ "Adebimpe", "Azeez", "" ], [ "Baum", "Graham L.", "" ], ...
A diverse white matter network and finely tuned neuronal membrane properties allow the brain to transition seamlessly between cognitive states. However, it remains unclear how static structural connections guide the temporal progression of large-scale brain activity patterns in different cognitive states. Here, we anal...
2104.01458
Mar\'ia Vallet-Regi
M. Natividad Gomez-Cerezo, Juan Pena, Saso Ivanovski, Daniel Arcos, Maria Vallet-Regi, Cedryck Vaquette
Multiscale porosity in mesoporous bioglass 3D-printed scaffolds for bone regeneration
34 pages, 10 figures
Materials Science and Engineering: C, Volume 120, January 2021, 111706
10.1016/j.msec.2020.111706
null
q-bio.TO
http://creativecommons.org/licenses/by-nc-nd/4.0/
In order to increase the bone forming ability of MBG-PCL composite scaffold, microporosity was created in the struts of 3D-printed MBG-PCL scaffolds for the manufacturing of a construct with a multiscale porosity consisting of meso-, micro- and macro-pores. 3D-printing imparted macroporosity while the microporosity w...
[ { "created": "Sat, 3 Apr 2021 18:34:03 GMT", "version": "v1" } ]
2021-04-06
[ [ "Gomez-Cerezo", "M. Natividad", "" ], [ "Pena", "Juan", "" ], [ "Ivanovski", "Saso", "" ], [ "Arcos", "Daniel", "" ], [ "Vallet-Regi", "Maria", "" ], [ "Vaquette", "Cedryck", "" ] ]
In order to increase the bone forming ability of MBG-PCL composite scaffold, microporosity was created in the struts of 3D-printed MBG-PCL scaffolds for the manufacturing of a construct with a multiscale porosity consisting of meso-, micro- and macro-pores. 3D-printing imparted macroporosity while the microporosity was...
2408.03942
Davood Karimi
Camilo Calixto, Matheus D. Soldatelli, Bo Li, Lana Pierotich, Ali Gholipour, Simon K. Warfield, Davood Karimi
White matter tract crossing and bottleneck regions in the fetal brain
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
There is a growing interest in using diffusion MRI to study the white matter tracts and structural connectivity of the fetal brain. Recent progress in data acquisition and processing suggests that this imaging modality has a unique role in elucidating the normal and abnormal patterns of neurodevelopment in utero. How...
[ { "created": "Sat, 20 Jul 2024 21:20:50 GMT", "version": "v1" } ]
2024-08-09
[ [ "Calixto", "Camilo", "" ], [ "Soldatelli", "Matheus D.", "" ], [ "Li", "Bo", "" ], [ "Pierotich", "Lana", "" ], [ "Gholipour", "Ali", "" ], [ "Warfield", "Simon K.", "" ], [ "Karimi", "Davood", "" ] ]
There is a growing interest in using diffusion MRI to study the white matter tracts and structural connectivity of the fetal brain. Recent progress in data acquisition and processing suggests that this imaging modality has a unique role in elucidating the normal and abnormal patterns of neurodevelopment in utero. Howev...
2309.06636
Chaoqian Wang
Chaoqian Wang
Evolution of trust in structured populations
14 pages, 2 figures, accepted for publication in Applied Mathematics and Computation
Applied Mathematics and Computation, Volume 471, 15 June 2024, 128595
10.1016/j.amc.2024.128595
null
q-bio.PE nlin.AO physics.soc-ph
http://creativecommons.org/publicdomain/zero/1.0/
The trust game, derived from an economics experiment, has recently attracted interest in the field of evolutionary dynamics. In a recent version of the evolutionary trust game, players adopt one of three strategies: investor, trustworthy trustee, or untrustworthy trustee. Trustworthy trustees enhance and share the in...
[ { "created": "Tue, 12 Sep 2023 22:54:45 GMT", "version": "v1" }, { "created": "Sun, 17 Dec 2023 02:44:09 GMT", "version": "v2" }, { "created": "Sat, 10 Feb 2024 03:08:42 GMT", "version": "v3" } ]
2024-02-13
[ [ "Wang", "Chaoqian", "" ] ]
The trust game, derived from an economics experiment, has recently attracted interest in the field of evolutionary dynamics. In a recent version of the evolutionary trust game, players adopt one of three strategies: investor, trustworthy trustee, or untrustworthy trustee. Trustworthy trustees enhance and share the inve...
2201.09647
Alex Zhavoronkov
Feng Ren, Xiao Ding, Min Zheng, Mikhail Korzinkin, Xin Cai, Wei Zhu, Alexey Mantsyzov, Alex Aliper, Vladimir Aladinskiy, Zhongying Cao, Shanshan Kong, Xi Long, Bonnie Hei Man Liu, Yingtao Liu, Vladimir Naumov, Anastasia Shneyderman, Ivan V. Ozerov, Ju Wang, Frank W. Pun, Alan Aspuru-Guzik, Michael Levitt, and A...
AlphaFold Accelerates Artificial Intelligence Powered Drug Discovery: Efficient Discovery of a Novel Cyclin-dependent Kinase 20 (CDK20) Small Molecule Inhibitor
9 pages, 6 figures
null
null
null
q-bio.BM cs.AI cs.LG q-bio.MN
http://creativecommons.org/licenses/by-nc-sa/4.0/
The AlphaFold computer program predicted protein structures for the whole human genome, which has been considered as a remarkable breakthrough both in artificial intelligence (AI) application and structural biology. Despite the varying confidence level, these predicted structures still could significantly contribute ...
[ { "created": "Fri, 21 Jan 2022 07:35:24 GMT", "version": "v1" }, { "created": "Sun, 13 Feb 2022 04:26:30 GMT", "version": "v2" } ]
2022-02-15
[ [ "Ren", "Feng", "" ], [ "Ding", "Xiao", "" ], [ "Zheng", "Min", "" ], [ "Korzinkin", "Mikhail", "" ], [ "Cai", "Xin", "" ], [ "Zhu", "Wei", "" ], [ "Mantsyzov", "Alexey", "" ], [ "Aliper", "Alex"...
The AlphaFold computer program predicted protein structures for the whole human genome, which has been considered as a remarkable breakthrough both in artificial intelligence (AI) application and structural biology. Despite the varying confidence level, these predicted structures still could significantly contribute to...
1809.08959
Joaquin Goni
Sumra Bari, Enrico Amico, Nicole Vike, Thomas M. Talavage, Joaqu\'in Go\~ni
Uncovering Multi-Site Identifiability Based on Resting-State Functional Connectomes
28 pages, 11 figures in main text, 5 figures in supplementary
NeuroImage, 2019, Vol 202, 115967
10.1016/j.neuroimage.2019.06.045
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multi-site studies are becoming important to increase statistical power, enhance generalizability, and to improve the likelihood of pooling relevant subgroups together activities. Even with harmonized imaging sequences, site-dependent variability can mask the advantages of these multi-site studies. The aim of this st...
[ { "created": "Mon, 24 Sep 2018 14:14:32 GMT", "version": "v1" }, { "created": "Tue, 23 Apr 2019 19:06:42 GMT", "version": "v2" } ]
2019-09-11
[ [ "Bari", "Sumra", "" ], [ "Amico", "Enrico", "" ], [ "Vike", "Nicole", "" ], [ "Talavage", "Thomas M.", "" ], [ "Goñi", "Joaquín", "" ] ]
Multi-site studies are becoming important to increase statistical power, enhance generalizability, and to improve the likelihood of pooling relevant subgroups together activities. Even with harmonized imaging sequences, site-dependent variability can mask the advantages of these multi-site studies. The aim of this stud...
2307.02561
Samuel Church
Samuel H. Church, Jasmine L. Mah, Casey W. Dunn
Unification of species, gene, and cell trees for single-cell expression analyses
16 pages, 4 figures
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
Comparisons of single-cell RNA sequencing (scRNA-seq) data across species can reveal links between cellular gene expression and the evolution of cell functions, features, and phenotypes. These comparisons invoke evolutionary histories, as depicted with phylogenetic trees, that define relationships between species, ge...
[ { "created": "Wed, 5 Jul 2023 18:02:17 GMT", "version": "v1" } ]
2023-07-07
[ [ "Church", "Samuel H.", "" ], [ "Mah", "Jasmine L.", "" ], [ "Dunn", "Casey W.", "" ] ]
Comparisons of single-cell RNA sequencing (scRNA-seq) data across species can reveal links between cellular gene expression and the evolution of cell functions, features, and phenotypes. These comparisons invoke evolutionary histories, as depicted with phylogenetic trees, that define relationships between species, gene...
2004.08973
Gabor Vattay
Gabor Vattay
Forecasting the outcome and estimating the epidemic model parameters from the fatality time series in COVID-19 outbreaks
null
Physical Biology 2020
10.1088/1478-3975/abac69
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the absence of other tools, monitoring the effects of protective measures, including social distancing and forecasting the outcome of outbreaks is of immense interest. Real-time data is noisy and very often hampered by systematic errors in reporting. Detailed epidemic models may contain a large number of empirical...
[ { "created": "Sun, 19 Apr 2020 22:14:17 GMT", "version": "v1" }, { "created": "Sat, 1 Aug 2020 09:53:57 GMT", "version": "v2" } ]
2020-08-11
[ [ "Vattay", "Gabor", "" ] ]
In the absence of other tools, monitoring the effects of protective measures, including social distancing and forecasting the outcome of outbreaks is of immense interest. Real-time data is noisy and very often hampered by systematic errors in reporting. Detailed epidemic models may contain a large number of empirical p...
q-bio/0605005
Willy Valdivia-Granda
Willy Valdivia-Granda and Christopher Dwan
Microarray Data Management. An Enterprise Information Approach: Implementations and Challenges
10 pages, 12 figures, To apperar in: Database Modeling in Biology: Practices and Challenges. Ma, Zongmin; Chen, Jake (Eds.) Springer Sciences & Business Media, Inc., New York, USA (2006). ISBN: 0-387-30238-7
null
null
null
q-bio.GN
null
The extraction of information form high-throughput experiments is a key aspect of modern biology. Early in the development of microarray technology, researchers recognized that the size of the datasets and the limitations of both computational and visualization techniques restricted their ability to find the biologic...
[ { "created": "Wed, 3 May 2006 13:51:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Valdivia-Granda", "Willy", "" ], [ "Dwan", "Christopher", "" ] ]
The extraction of information form high-throughput experiments is a key aspect of modern biology. Early in the development of microarray technology, researchers recognized that the size of the datasets and the limitations of both computational and visualization techniques restricted their ability to find the biological...
1903.01316
Romain M. Yvinec
Fr\'ed\'erique Cl\'ement and Fr\'ed\'erique Robin and Romain Yvinec
Stochastic nonlinear model for somatic cell population dynamics during ovarian follicle activation
Accepted in Journal of Mathematical Biology
null
null
null
q-bio.CB math.PR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In mammals, female germ cells are sheltered within somatic structures called ovarian follicles, which remain in a quiescent state until they get activated, all along reproductive life. We investigate the sequence of somatic cell events occurring just after follicle activation, starting by the awakening of precursor s...
[ { "created": "Mon, 4 Mar 2019 15:48:38 GMT", "version": "v1" }, { "created": "Wed, 9 Dec 2020 08:07:29 GMT", "version": "v2" } ]
2020-12-10
[ [ "Clément", "Frédérique", "" ], [ "Robin", "Frédérique", "" ], [ "Yvinec", "Romain", "" ] ]
In mammals, female germ cells are sheltered within somatic structures called ovarian follicles, which remain in a quiescent state until they get activated, all along reproductive life. We investigate the sequence of somatic cell events occurring just after follicle activation, starting by the awakening of precursor som...
1508.00623
Nicholas Noll
Nicholas Noll, Madhav Mani, Idse Heemskerk, Sebastian Streichan, Boris I. Shraiman
Active Tension Network model reveals an exotic mechanical state realized in epithelial tissues
The central argument as well as the initial reported results remain unchanged. This revision represents a restructuring of the initial arguments to make it more readable and easier to understand to a wider audience. Furthermore, additional movies were analyzed to bolster our claim made that VF formation is prim...
null
null
null
q-bio.TO q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is now widely recognized that mechanical interactions between cells play a crucial role in epithelial morphogenesis, yet understanding the mechanisms through which stress and deformation affect cell behavior remains an open problem due to the complexity inherent in the mechanical behavior of cells and the difficul...
[ { "created": "Mon, 3 Aug 2015 23:53:26 GMT", "version": "v1" }, { "created": "Wed, 18 Jan 2017 23:31:46 GMT", "version": "v2" } ]
2017-01-20
[ [ "Noll", "Nicholas", "" ], [ "Mani", "Madhav", "" ], [ "Heemskerk", "Idse", "" ], [ "Streichan", "Sebastian", "" ], [ "Shraiman", "Boris I.", "" ] ]
It is now widely recognized that mechanical interactions between cells play a crucial role in epithelial morphogenesis, yet understanding the mechanisms through which stress and deformation affect cell behavior remains an open problem due to the complexity inherent in the mechanical behavior of cells and the difficulty...
1812.08031
Gestionnaire Hal-Su
St\'ephane Epelbaum (ICM, IM2A, UPMC), Vincent Bouteloup (ISPED, BPH), Jean Mangin (CATI, NEUROSPIN), Valentina La Corte (UPD5 Psychologie, CPN - U894), Raffaela Migliaccio (ICM, IM2A, UPMC), Hugo Bertin (LIB, CATI, UPMC), Marie O. Habert (LIB, CATI, UPMC), Clara Fischer (CATI, NEUROSPIN), Chabha Azouani (CATI)...
Neural correlates of episodic memory in the Memento cohort
null
Alzheimer's & Dementia: Translational Research & Clinical Interventions, 2018, 4, pp.224-233
10.1016/j.trci.2018.03.010
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
IntroductionThe free and cued selective reminding test is used to identify memory deficits in mild cognitive impairment and demented patients. It allows assessing three processes: encoding, storage, and recollection of verbal episodic memory.MethodsWe investigated the neural correlates of these three memory processes...
[ { "created": "Wed, 19 Dec 2018 15:44:51 GMT", "version": "v1" } ]
2018-12-20
[ [ "Epelbaum", "Stéphane", "", "ICM, IM2A, UPMC" ], [ "Bouteloup", "Vincent", "", "ISPED, BPH" ], [ "Mangin", "Jean", "", "CATI, NEUROSPIN" ], [ "La Corte", "Valentina", "", "UPD5 Psychologie, CPN -\n U894" ], [ "Migliaccio", "R...
IntroductionThe free and cued selective reminding test is used to identify memory deficits in mild cognitive impairment and demented patients. It allows assessing three processes: encoding, storage, and recollection of verbal episodic memory.MethodsWe investigated the neural correlates of these three memory processes i...
1511.01810
Sebastien Benzekry
S\'ebastien Benzekry (IMB, MONC), J. M. L. Ebos
On the growth and dissemination laws in a mathematical model of metastatic growth
null
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Metastasis represents one of the main clinical challenge in cancer treatment since it is associated with the majority of deaths. Recent technological advances allow quantification of the dynamics of the process by means of noninvasive techniques such as longitudinal tracking of bioluminescent cells. The metastatic pr...
[ { "created": "Wed, 4 Nov 2015 12:59:36 GMT", "version": "v1" } ]
2015-11-06
[ [ "Benzekry", "Sébastien", "", "IMB, MONC" ], [ "Ebos", "J. M. L.", "" ] ]
Metastasis represents one of the main clinical challenge in cancer treatment since it is associated with the majority of deaths. Recent technological advances allow quantification of the dynamics of the process by means of noninvasive techniques such as longitudinal tracking of bioluminescent cells. The metastatic proc...
2308.14715
Ethan Levien
Ethan Levien
Coalescent processes emerging from large deviations
15 pages, 3 figures. Major revision incorporating comments from anonymous referees
null
null
null
q-bio.PE cond-mat.stat-mech
http://creativecommons.org/licenses/by/4.0/
The classical model for the genealogies of a neutrally evolving population in a fixed environment is due to Kingman. Kingman's coalescent process, which produces a binary tree, universally emerges from many microscopic models in which the variance in the number of offspring is finite. It is understood that power-law ...
[ { "created": "Mon, 28 Aug 2023 17:15:54 GMT", "version": "v1" }, { "created": "Tue, 5 Sep 2023 01:22:17 GMT", "version": "v2" }, { "created": "Mon, 4 Dec 2023 16:13:45 GMT", "version": "v3" } ]
2023-12-05
[ [ "Levien", "Ethan", "" ] ]
The classical model for the genealogies of a neutrally evolving population in a fixed environment is due to Kingman. Kingman's coalescent process, which produces a binary tree, universally emerges from many microscopic models in which the variance in the number of offspring is finite. It is understood that power-law of...
2307.16231
R\'edoane Daoudi
R\'edoane Daoudi
Strategies for targeting chondrosarcomas in vivo and molecular dissection of oncogenic events in chondrosarcomas: is epigenetics the culprit?
21 pages, 1 figure, 1 table
null
null
null
q-bio.MN q-bio.SC
http://creativecommons.org/licenses/by/4.0/
It is obvious that both epigenetic and non-epigenetic actors contribute to tumorigenesis in chondrosarcomas and more generally in other cancers. Thus, the main altered pathways in chondrosarcomas are now well established and include both epigenetic and non-epigenetic pathways such as the PI3K-AKT signaling, EGFR over...
[ { "created": "Sun, 30 Jul 2023 13:43:33 GMT", "version": "v1" } ]
2023-08-01
[ [ "Daoudi", "Rédoane", "" ] ]
It is obvious that both epigenetic and non-epigenetic actors contribute to tumorigenesis in chondrosarcomas and more generally in other cancers. Thus, the main altered pathways in chondrosarcomas are now well established and include both epigenetic and non-epigenetic pathways such as the PI3K-AKT signaling, EGFR overex...
1511.04001
Burkhard Morgenstern
Lars Hahn, Chris-Andr\'e Leimeister, Rachid Ounit, Stefano Lonardi, Burkhard Morgenstern
RasBhari: optimizing spaced seeds for database searching, read mapping and alignment-free sequence comparison
null
null
10.1371/journal.pcbi.1005107
null
q-bio.GN cs.DS q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many algorithms for sequence analysis rely on word matching or word statistics. Often, these approaches can be improved if binary patterns representing match and don't-care positions are used as a filter, such that only those positions of words are considered that correspond to the match positions of the patterns. Th...
[ { "created": "Thu, 12 Nov 2015 18:48:08 GMT", "version": "v1" }, { "created": "Wed, 20 Jul 2016 13:06:46 GMT", "version": "v2" } ]
2017-02-08
[ [ "Hahn", "Lars", "" ], [ "Leimeister", "Chris-André", "" ], [ "Ounit", "Rachid", "" ], [ "Lonardi", "Stefano", "" ], [ "Morgenstern", "Burkhard", "" ] ]
Many algorithms for sequence analysis rely on word matching or word statistics. Often, these approaches can be improved if binary patterns representing match and don't-care positions are used as a filter, such that only those positions of words are considered that correspond to the match positions of the patterns. The ...
1801.04825
Radha Srinivasan
Kiran Vishwasrao, Yasmin Khan and S. Radha
The cellular uptake mechanism of SPIONs: an in-vitro study
8 pages, 3 figures, Part of work presented at International Conference of Magnetism 2012 (Busan, S.Korea)
null
null
null
q-bio.CB cond-mat.soft physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Superparamagnetic Iron Oxide Nanoparticles (SPIONs) of sizes ranging from 10-50 nm are being used in a large number of biological studies because of their peculiar characteristics of inducing local hyperthermia, MR imaging, specific targeting and drug delivery. An in-vitro study of the cytotoxicity and an underst...
[ { "created": "Mon, 15 Jan 2018 14:40:35 GMT", "version": "v1" } ]
2018-01-16
[ [ "Vishwasrao", "Kiran", "" ], [ "Khan", "Yasmin", "" ], [ "Radha", "S.", "" ] ]
The Superparamagnetic Iron Oxide Nanoparticles (SPIONs) of sizes ranging from 10-50 nm are being used in a large number of biological studies because of their peculiar characteristics of inducing local hyperthermia, MR imaging, specific targeting and drug delivery. An in-vitro study of the cytotoxicity and an understan...
2204.01847
Qi Zhang
Qi Zhang, Chang Liu, Stephen Wu and Ryo Yoshida
Bayesian Sequential Stacking Algorithm for Concurrently Designing Molecules and Synthetic Reaction Networks
null
null
null
null
q-bio.BM cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the last few years, de novo molecular design using machine learning has made great technical progress but its practical deployment has not been as successful. This is mostly owing to the cost and technical difficulty of synthesizing such computationally designed molecules. To overcome such barriers, various method...
[ { "created": "Tue, 1 Mar 2022 14:55:32 GMT", "version": "v1" } ]
2022-04-06
[ [ "Zhang", "Qi", "" ], [ "Liu", "Chang", "" ], [ "Wu", "Stephen", "" ], [ "Yoshida", "Ryo", "" ] ]
In the last few years, de novo molecular design using machine learning has made great technical progress but its practical deployment has not been as successful. This is mostly owing to the cost and technical difficulty of synthesizing such computationally designed molecules. To overcome such barriers, various methods ...
2306.08015
Reindorf Borkor
Reindorf Nartey Borkor and Adu Sakyi and Peter Amoako-Yirenkyi
Investigation of Fractional Compartmental Models with Application to Amiodarone Drug Diffusion in Pharmacokinetics
null
null
null
null
q-bio.QM cs.NA math.NA
http://creativecommons.org/licenses/by/4.0/
This paper presents three fractional models formulated from a classical Pharmacokinetics compartmental system: commensurable, non-commensurable, and implicit non-commensurable models. Their distinguishing characteristics are further examined comprehensively. Because analytic solutions for such models are typically ch...
[ { "created": "Tue, 13 Jun 2023 12:23:26 GMT", "version": "v1" } ]
2023-06-16
[ [ "Borkor", "Reindorf Nartey", "" ], [ "Sakyi", "Adu", "" ], [ "Amoako-Yirenkyi", "Peter", "" ] ]
This paper presents three fractional models formulated from a classical Pharmacokinetics compartmental system: commensurable, non-commensurable, and implicit non-commensurable models. Their distinguishing characteristics are further examined comprehensively. Because analytic solutions for such models are typically chal...
1611.02272
Alexander Tait
Alexander N. Tait, Thomas Ferreira de Lima, Ellen Zhou, Allie X. Wu, Mitchell A. Nahmias, Bhavin J. Shastri, and Paul R. Prucnal
Neuromorphic Silicon Photonic Networks
12 pages, 4 figures, accepted in Scientific Reports
Sci.Rep. 7 (2017) 7430
10.1038/s41598-017-07754-z
null
q-bio.NC cs.NE physics.optics
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Photonic systems for high-performance information processing have attracted renewed interest. Neuromorphic silicon photonics has the potential to integrate processing functions that vastly exceed the capabilities of electronics. We report first observations of a recurrent silicon photonic neural network, in which con...
[ { "created": "Sat, 5 Nov 2016 00:15:59 GMT", "version": "v1" }, { "created": "Wed, 22 Mar 2017 17:35:37 GMT", "version": "v2" }, { "created": "Mon, 12 Jun 2017 15:56:45 GMT", "version": "v3" } ]
2017-11-17
[ [ "Tait", "Alexander N.", "" ], [ "de Lima", "Thomas Ferreira", "" ], [ "Zhou", "Ellen", "" ], [ "Wu", "Allie X.", "" ], [ "Nahmias", "Mitchell A.", "" ], [ "Shastri", "Bhavin J.", "" ], [ "Prucnal", "Paul R.", ...
Photonic systems for high-performance information processing have attracted renewed interest. Neuromorphic silicon photonics has the potential to integrate processing functions that vastly exceed the capabilities of electronics. We report first observations of a recurrent silicon photonic neural network, in which conne...
1603.09415
Benjamin Drinkwater
Benjamin Drinkwater, Angela Qiao, and Michael A. Charleston
WiSPA: A new approach for dealing with widespread parasitism
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Traditionally, studies of coevolving systems have considered cases where a parasite may inhabit only a single host. The case where a parasite may infect many hosts, widespread parasitism, has until recently gained little traction. This is due in part to the computational complexity involved in reconstructing the coev...
[ { "created": "Wed, 30 Mar 2016 23:32:50 GMT", "version": "v1" } ]
2016-04-01
[ [ "Drinkwater", "Benjamin", "" ], [ "Qiao", "Angela", "" ], [ "Charleston", "Michael A.", "" ] ]
Traditionally, studies of coevolving systems have considered cases where a parasite may inhabit only a single host. The case where a parasite may infect many hosts, widespread parasitism, has until recently gained little traction. This is due in part to the computational complexity involved in reconstructing the coevol...
1402.5327
Jian-Jun Shu
Jian-Jun Shu, Kian Yan Yong and Weng Kong Chan
An improved scoring matrix for multiple sequence alignment
null
Mathematical Problems in Engineering, Vol. 2012, No. 490649, pp. 1-9, 2012
10.1155/2012/490649
null
q-bio.QM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The way for performing multiple sequence alignment is based on the criterion of the maximum scored information content computed from a weight matrix, but it is possible to have two or more alignments to have the same highest score leading to ambiguities in selecting the best alignment. This paper addresses this issue...
[ { "created": "Fri, 21 Feb 2014 15:44:25 GMT", "version": "v1" }, { "created": "Fri, 28 Feb 2014 14:20:00 GMT", "version": "v2" } ]
2014-03-03
[ [ "Shu", "Jian-Jun", "" ], [ "Yong", "Kian Yan", "" ], [ "Chan", "Weng Kong", "" ] ]
The way for performing multiple sequence alignment is based on the criterion of the maximum scored information content computed from a weight matrix, but it is possible to have two or more alignments to have the same highest score leading to ambiguities in selecting the best alignment. This paper addresses this issue b...
1309.3312
Armita Nourmohammad
Armita Nourmohammad, Torsten Held, Michael L\"assig
Universality and predictability in molecular quantitative genetics
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Molecular traits, such as gene expression levels or protein binding affinities, are increasingly accessible to quantitative measurement by modern high-throughput techniques. Such traits measure molecular functions and, from an evolutionary point of view, are important as targets of natural selection. We review recent...
[ { "created": "Thu, 12 Sep 2013 21:30:16 GMT", "version": "v1" }, { "created": "Thu, 14 Nov 2013 15:23:28 GMT", "version": "v2" } ]
2013-11-15
[ [ "Nourmohammad", "Armita", "" ], [ "Held", "Torsten", "" ], [ "Lässig", "Michael", "" ] ]
Molecular traits, such as gene expression levels or protein binding affinities, are increasingly accessible to quantitative measurement by modern high-throughput techniques. Such traits measure molecular functions and, from an evolutionary point of view, are important as targets of natural selection. We review recent d...
2406.12625
Polina Turishcheva
Polina Turishcheva, Max Burg, Fabian H. Sinz, Alexander Ecker
Reproducibility of predictive networks for mouse visual cortex
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Deep predictive models of neuronal activity have recently enabled several new discoveries about the selectivity and invariance of neurons in the visual cortex. These models learn a shared set of nonlinear basis functions, which are linearly combined via a learned weight vector to represent a neuron's function. Such w...
[ { "created": "Tue, 18 Jun 2024 13:50:08 GMT", "version": "v1" } ]
2024-06-19
[ [ "Turishcheva", "Polina", "" ], [ "Burg", "Max", "" ], [ "Sinz", "Fabian H.", "" ], [ "Ecker", "Alexander", "" ] ]
Deep predictive models of neuronal activity have recently enabled several new discoveries about the selectivity and invariance of neurons in the visual cortex. These models learn a shared set of nonlinear basis functions, which are linearly combined via a learned weight vector to represent a neuron's function. Such wei...
2005.13692
Sergei Chekmarev F.
Sergei F. Chekmarev
First-Passage Time Distributions in Two-State Protein Folding Kinetics: Exploring the Native-Like States vs Overcoming the Free Energy Barrier
27 pages, 21 figures
null
10.1039/D0CP06560A
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using a beta-hairpin protein as a representative example of two-state folders, we studied how the exploration of native-like states affects the folding kinetics. It has been found that the first-passage time (FPT) distributions are essentially single-exponential not only for the times to overcome the free energy barr...
[ { "created": "Wed, 27 May 2020 22:41:53 GMT", "version": "v1" }, { "created": "Thu, 6 Aug 2020 19:13:16 GMT", "version": "v2" } ]
2021-11-16
[ [ "Chekmarev", "Sergei F.", "" ] ]
Using a beta-hairpin protein as a representative example of two-state folders, we studied how the exploration of native-like states affects the folding kinetics. It has been found that the first-passage time (FPT) distributions are essentially single-exponential not only for the times to overcome the free energy barrie...
2201.03306
Diederik Aerts
Diederik Aerts and Lester Beltran
A Planck Radiation and Quantization Scheme for Human Cognition and Language
7 figures
Frontiers in Psychology 13, 850725 (2022)
10.3389/fpsyg.2022.850725
null
q-bio.NC cs.CL quant-ph
http://creativecommons.org/licenses/by/4.0/
As a result of the identification of 'identity' and 'indistinguishability' and strong experimental evidence for the presence of the associated Bose-Einstein statistics in human cognition and language, we argued in previous work for an extension of the research domain of quantum cognition. In addition to quantum compl...
[ { "created": "Mon, 10 Jan 2022 12:13:23 GMT", "version": "v1" }, { "created": "Fri, 4 Mar 2022 10:31:22 GMT", "version": "v2" } ]
2023-02-27
[ [ "Aerts", "Diederik", "" ], [ "Beltran", "Lester", "" ] ]
As a result of the identification of 'identity' and 'indistinguishability' and strong experimental evidence for the presence of the associated Bose-Einstein statistics in human cognition and language, we argued in previous work for an extension of the research domain of quantum cognition. In addition to quantum complex...
1804.01217
Md Nafiz Hamid
Md-Nafiz Hamid
Gene Co-expression Network analysis of Lung Squamous Cell Carcinoma data
null
null
null
null
q-bio.GN q-bio.MN
http://creativecommons.org/licenses/by/4.0/
We performed a gene co-expression analysis on Lung Squamous Cell Carcinoma data to find modules (groups) of genes that may highly impact the growth of these type of tumors. Additionally, we used cancer survival data to relate modules to prognostic significance in terms of survival time. Analysis on RNA-seq data revea...
[ { "created": "Wed, 4 Apr 2018 02:38:26 GMT", "version": "v1" } ]
2018-04-05
[ [ "Hamid", "Md-Nafiz", "" ] ]
We performed a gene co-expression analysis on Lung Squamous Cell Carcinoma data to find modules (groups) of genes that may highly impact the growth of these type of tumors. Additionally, we used cancer survival data to relate modules to prognostic significance in terms of survival time. Analysis on RNA-seq data reveale...
1410.4711
Sarah Hallerberg
Heike Vester, Kurt Hammerschmidt, Marc Timme, Sarah Hallerberg
Bag-of-calls analysis reveals group-specific vocal repertoire in long-finned pilot whales
under review
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Besides humans, several marine mammal species exhibit prerequisites to evolve language: high cognitive abilities, flexibility in vocal production and advanced social interactions. Here, we describe and analyse the vocal repertoire of long-finned pilot whales (Globicephalus melas) recorded in northern Norway. Observer...
[ { "created": "Fri, 17 Oct 2014 13:06:09 GMT", "version": "v1" }, { "created": "Fri, 12 Jun 2015 12:05:44 GMT", "version": "v2" } ]
2015-06-15
[ [ "Vester", "Heike", "" ], [ "Hammerschmidt", "Kurt", "" ], [ "Timme", "Marc", "" ], [ "Hallerberg", "Sarah", "" ] ]
Besides humans, several marine mammal species exhibit prerequisites to evolve language: high cognitive abilities, flexibility in vocal production and advanced social interactions. Here, we describe and analyse the vocal repertoire of long-finned pilot whales (Globicephalus melas) recorded in northern Norway. Observer b...
1207.3811
Arda Halu
Arda Halu and Ginestra Bianconi
Monochromaticity in Neutral Evolutionary Network Models
8 pages, 14 figures
Phys. Rev. E 86, 066101 (2012)
10.1103/PhysRevE.86.066101
null
q-bio.MN cond-mat.dis-nn cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent studies on epistatic networks of model organisms have unveiled a certain type of modular property called monochromaticity in which the networks are clusterable into functional modules that interact with each other through the same type of epistasis. Here we propose and study three epistatic network models that...
[ { "created": "Mon, 16 Jul 2012 20:05:55 GMT", "version": "v1" }, { "created": "Sat, 17 Nov 2012 05:12:47 GMT", "version": "v2" } ]
2013-05-30
[ [ "Halu", "Arda", "" ], [ "Bianconi", "Ginestra", "" ] ]
Recent studies on epistatic networks of model organisms have unveiled a certain type of modular property called monochromaticity in which the networks are clusterable into functional modules that interact with each other through the same type of epistasis. Here we propose and study three epistatic network models that a...
2007.13368
Henning Stumpf
Henning Stumpf (1), Andreja Ambriovi\'c-Ristov (2), Aleksandra Radenovic (3), Ana-Sun\v{c}ana Smith (1 and 4) ((1) PULS Group, Institute for Theoretical Physics, Interdisciplinary Center for Nanostructured Films, Friedrich-Alexander-Universit\"at Erlangen-N\"urnberg, Erlangen, Germany, (2) Laboratory for Cell B...
Recent Advances and Prospects in the Research of Nascent Adhesions
38 pages, 2 figures, review article
null
10.3389/fphys.2020.574371
null
q-bio.SC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nascent adhesions are submicron transient structures promoting the early adhesion of cells to the extracellular matrix. Nascent adhesions typically consist of several tens of integrins, and serve as platforms for the recruitment and activation of proteins to build mature focal adhesions. They are also associated with...
[ { "created": "Mon, 27 Jul 2020 08:35:15 GMT", "version": "v1" } ]
2021-01-19
[ [ "Stumpf", "Henning", "", "1 and 4" ], [ "Ambriović-Ristov", "Andreja", "", "1 and 4" ], [ "Radenovic", "Aleksandra", "", "1 and 4" ], [ "Smith", "Ana-Sunčana", "", "1 and 4" ] ]
Nascent adhesions are submicron transient structures promoting the early adhesion of cells to the extracellular matrix. Nascent adhesions typically consist of several tens of integrins, and serve as platforms for the recruitment and activation of proteins to build mature focal adhesions. They are also associated with e...
1906.07463
Tom Chou
Renaud Dessalles, Yunbei Pan, Mingtao Xia, Davide Maestrini, Maria R. D'Orsogna, Tom Chou
How heterogeneous thymic output and homeostatic proliferation shape naive T cell receptor clone abundance distributions
significant revision, including improved data fitting, 23 pages, 11 figures
null
null
null
q-bio.PE q-bio.TO
http://creativecommons.org/licenses/by-nc-sa/4.0/
The set of T cells that express the same T cell receptor (TCR) sequence represents a T cell clone. The number of different naive T cell clones in an organism reflects the number of different T cell receptors (TCRs) arising from recombination of the V(D)J gene segments during T cell development in the thymus. TCR dive...
[ { "created": "Tue, 18 Jun 2019 09:33:31 GMT", "version": "v1" }, { "created": "Thu, 5 Mar 2020 04:15:31 GMT", "version": "v2" } ]
2020-03-06
[ [ "Dessalles", "Renaud", "" ], [ "Pan", "Yunbei", "" ], [ "Xia", "Mingtao", "" ], [ "Maestrini", "Davide", "" ], [ "D'Orsogna", "Maria R.", "" ], [ "Chou", "Tom", "" ] ]
The set of T cells that express the same T cell receptor (TCR) sequence represents a T cell clone. The number of different naive T cell clones in an organism reflects the number of different T cell receptors (TCRs) arising from recombination of the V(D)J gene segments during T cell development in the thymus. TCR divers...
2106.14192
Jianye Pang
Kai Yi, Jianye Pang, Yungeng Zhang, Xiangrui Zeng, Min Xu
Disentangling semantic features of macromolecules in Cryo-Electron Tomography
null
null
null
null
q-bio.BM cs.CV
http://creativecommons.org/licenses/by-nc-sa/4.0/
Cryo-electron tomography (Cryo-ET) is a 3D imaging technique that enables the systemic study of shape, abundance, and distribution of macromolecular structures in single cells in near-atomic resolution. However, the systematic and efficient $\textit{de novo}$ recognition and recovery of macromolecular structures capt...
[ { "created": "Sun, 27 Jun 2021 10:41:26 GMT", "version": "v1" } ]
2021-06-29
[ [ "Yi", "Kai", "" ], [ "Pang", "Jianye", "" ], [ "Zhang", "Yungeng", "" ], [ "Zeng", "Xiangrui", "" ], [ "Xu", "Min", "" ] ]
Cryo-electron tomography (Cryo-ET) is a 3D imaging technique that enables the systemic study of shape, abundance, and distribution of macromolecular structures in single cells in near-atomic resolution. However, the systematic and efficient $\textit{de novo}$ recognition and recovery of macromolecular structures captur...
1905.01933
Maria Masoliver
Maria Masoliver and Cristina Masoller
Neuronal coupling benefits the encoding of weak periodic signals in symbolic spike patterns
null
null
10.1016/j.cnsns.2019.105023
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A good understanding of how neurons use electrical pulses (i.e, spikes) to encode the signal information remains elusive. Analyzing spike sequences generated by individual neurons and by two coupled neurons (using the stochastic FitzHugh-Nagumo model), recent theoretical studies have found that the relative timing of...
[ { "created": "Mon, 6 May 2019 11:25:24 GMT", "version": "v1" } ]
2019-10-23
[ [ "Masoliver", "Maria", "" ], [ "Masoller", "Cristina", "" ] ]
A good understanding of how neurons use electrical pulses (i.e, spikes) to encode the signal information remains elusive. Analyzing spike sequences generated by individual neurons and by two coupled neurons (using the stochastic FitzHugh-Nagumo model), recent theoretical studies have found that the relative timing of t...
1806.05753
Thierry Mora
Andreas Mayer, Vijay Balasubramanian, Aleksandra M. Walczak, Thierry Mora
How a well-adapting immune system remembers
null
Proc Natl Acad Sci 116(18) 8815-8823 (2019)
10.1073/pnas.1812810116
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An adaptive agent predicting the future state of an environment must weigh trust in new observations against prior experiences. In this light, we propose a view of the adaptive immune system as a dynamic Bayesian machinery that updates its memory repertoire by balancing evidence from new pathogen encounters against p...
[ { "created": "Thu, 14 Jun 2018 22:03:55 GMT", "version": "v1" }, { "created": "Tue, 13 Nov 2018 10:58:08 GMT", "version": "v2" } ]
2019-05-14
[ [ "Mayer", "Andreas", "" ], [ "Balasubramanian", "Vijay", "" ], [ "Walczak", "Aleksandra M.", "" ], [ "Mora", "Thierry", "" ] ]
An adaptive agent predicting the future state of an environment must weigh trust in new observations against prior experiences. In this light, we propose a view of the adaptive immune system as a dynamic Bayesian machinery that updates its memory repertoire by balancing evidence from new pathogen encounters against pas...
2009.05285
Amit Tewari
Amit Tewari
Temporal Analysis of COVID-19 Peak Outbreak
5 pages, 10 figures, 2 tables
null
null
null
q-bio.PE physics.soc-ph
http://creativecommons.org/licenses/by-sa/4.0/
Intent of this research is to explore how mathematical models, specifically Susceptible-Infected-Removed (SIR) model, can be utilized to forecast peak outbreak timeline of COVID-19 epidemic amongst a population of interest starting from the date of first reported case. Till the time of this research, there was no eff...
[ { "created": "Fri, 11 Sep 2020 08:34:28 GMT", "version": "v1" } ]
2020-09-14
[ [ "Tewari", "Amit", "" ] ]
Intent of this research is to explore how mathematical models, specifically Susceptible-Infected-Removed (SIR) model, can be utilized to forecast peak outbreak timeline of COVID-19 epidemic amongst a population of interest starting from the date of first reported case. Till the time of this research, there was no effec...
1104.5458
George Kesidis
Yaman Aksu, David J. Miller, George Kesidis, Don C. Bigler, Qing X. Yang
An MRI-Derived Definition of MCI-to-AD Conversion for Long-Term, Automati c Prognosis of MCI Patients
null
null
10.1371/journal.pone.0025074
null
q-bio.NC physics.med-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Alzheimer's disease (AD) and mild cognitive impairment (MCI), continue to be widely studied. While there is no consensus on whether MCIs actually "convert" to AD, the more important question is not whether MCIs convert, but what is the best such definition. We focus on automatic prognostication, nominally using only ...
[ { "created": "Thu, 28 Apr 2011 17:56:32 GMT", "version": "v1" } ]
2015-05-28
[ [ "Aksu", "Yaman", "" ], [ "Miller", "David J.", "" ], [ "Kesidis", "George", "" ], [ "Bigler", "Don C.", "" ], [ "Yang", "Qing X.", "" ] ]
Alzheimer's disease (AD) and mild cognitive impairment (MCI), continue to be widely studied. While there is no consensus on whether MCIs actually "convert" to AD, the more important question is not whether MCIs convert, but what is the best such definition. We focus on automatic prognostication, nominally using only a ...
1303.3332
Brent Pedersen
Brent S Pedersen, Ivana V Yang, Subhajyoti De
CruzDB: software for annotation of genomic intervals with UCSC genome-browser data
4 pages, 1 figure
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The biological significance of genomic features is often context-dependent. We present CruzDB, a fast and intuitive programmatic interface to the UCSC genome browser that facilitates integrative analyses of diverse local and remotely hosted datasets. We showcase the syntax of CruzDB using miRNA-binding sites as examp...
[ { "created": "Thu, 14 Mar 2013 01:41:09 GMT", "version": "v1" }, { "created": "Tue, 9 Jul 2013 22:02:30 GMT", "version": "v2" } ]
2013-07-11
[ [ "Pedersen", "Brent S", "" ], [ "Yang", "Ivana V", "" ], [ "De", "Subhajyoti", "" ] ]
The biological significance of genomic features is often context-dependent. We present CruzDB, a fast and intuitive programmatic interface to the UCSC genome browser that facilitates integrative analyses of diverse local and remotely hosted datasets. We showcase the syntax of CruzDB using miRNA-binding sites as example...
1912.05433
Tiberiu Tesileanu
Tiberiu Tesileanu, Mary M. Conte, John J. Briguglio, Ann M. Hermundstad, Jonathan D. Victor, Vijay Balasubramanian
Efficient coding of natural scene statistics predicts discrimination thresholds for grayscale textures
33 pages, 12 figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Previously, in (Hermundstad et al., 2014), we showed that when sampling is limiting, the efficient coding principle leads to a "variance is salience" hypothesis, and that this hypothesis accounts for visual sensitivity to binary image statistics. Here, using extensive new psychophysical data and image analysis, we sh...
[ { "created": "Wed, 11 Dec 2019 16:41:27 GMT", "version": "v1" }, { "created": "Fri, 10 Jul 2020 19:39:24 GMT", "version": "v2" } ]
2020-07-14
[ [ "Tesileanu", "Tiberiu", "" ], [ "Conte", "Mary M.", "" ], [ "Briguglio", "John J.", "" ], [ "Hermundstad", "Ann M.", "" ], [ "Victor", "Jonathan D.", "" ], [ "Balasubramanian", "Vijay", "" ] ]
Previously, in (Hermundstad et al., 2014), we showed that when sampling is limiting, the efficient coding principle leads to a "variance is salience" hypothesis, and that this hypothesis accounts for visual sensitivity to binary image statistics. Here, using extensive new psychophysical data and image analysis, we show...
2306.11768
Zaixi Zhang
Zaixi Zhang, Jiaxian Yan, Qi Liu, Enhong Chen, and Marinka Zitnik
A Systematic Survey in Geometric Deep Learning for Structure-based Drug Design
20 pages, under review
null
null
null
q-bio.QM cs.CE cs.LG
http://creativecommons.org/licenses/by-nc-sa/4.0/
Structure-based drug design (SBDD) utilizes the three-dimensional geometry of proteins to identify potential drug candidates. Traditional methods, grounded in physicochemical modeling and informed by domain expertise, are resource-intensive. Recent developments in geometric deep learning, focusing on the integration ...
[ { "created": "Tue, 20 Jun 2023 14:21:58 GMT", "version": "v1" }, { "created": "Thu, 22 Jun 2023 03:05:21 GMT", "version": "v2" }, { "created": "Mon, 3 Jul 2023 14:38:17 GMT", "version": "v3" }, { "created": "Sat, 14 Oct 2023 20:54:09 GMT", "version": "v4" }, { "cr...
2023-10-25
[ [ "Zhang", "Zaixi", "" ], [ "Yan", "Jiaxian", "" ], [ "Liu", "Qi", "" ], [ "Chen", "Enhong", "" ], [ "Zitnik", "Marinka", "" ] ]
Structure-based drug design (SBDD) utilizes the three-dimensional geometry of proteins to identify potential drug candidates. Traditional methods, grounded in physicochemical modeling and informed by domain expertise, are resource-intensive. Recent developments in geometric deep learning, focusing on the integration an...
2407.18329
Shuqiang Wang
Yongcheng Zong, Shuqiang Wang
A New Brain Network Construction Paradigm for Brain Disorder via Diffusion-based Graph Contrastive Learning
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Brain network analysis plays an increasingly important role in studying brain function and the exploring of disease mechanisms. However, existing brain network construction tools have some limitations, including dependency on empirical users, weak consistency in repeated experiments and time-consuming processes. In t...
[ { "created": "Sat, 6 Jul 2024 02:47:48 GMT", "version": "v1" } ]
2024-07-29
[ [ "Zong", "Yongcheng", "" ], [ "Wang", "Shuqiang", "" ] ]
Brain network analysis plays an increasingly important role in studying brain function and the exploring of disease mechanisms. However, existing brain network construction tools have some limitations, including dependency on empirical users, weak consistency in repeated experiments and time-consuming processes. In thi...
q-bio/0310031
Paul Higgs
P.G.Higgs, D.Jameson, H.Jow, M.Rattray
The Evolution of tRNA-Leu Genes in Animal Mitochondrial Genomes
20 pages, 6 figures. J. Mol. Evol. (in press)
null
null
null
q-bio.PE
null
Animal mitochondrial genomes usually have two transfer RNAs for Leucine: one, with anticodon UAG, translates the four-codon family CUN, whilst the other, with anticodon UAA, translates the two-codon family UUR. These two genes must differ at the third anticodon position, but in some species the genes differ at many a...
[ { "created": "Thu, 23 Oct 2003 22:11:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Higgs", "P. G.", "" ], [ "Jameson", "D.", "" ], [ "Jow", "H.", "" ], [ "Rattray", "M.", "" ] ]
Animal mitochondrial genomes usually have two transfer RNAs for Leucine: one, with anticodon UAG, translates the four-codon family CUN, whilst the other, with anticodon UAA, translates the two-codon family UUR. These two genes must differ at the third anticodon position, but in some species the genes differ at many add...
1702.01568
Volker Pernice
Volker Pernice, Rava Azeredo da Silveira
Interpretation of Correlated Neural Variability from Models of Feed-Forward and Recurrent Circuits
41 pages, 10 figures
null
10.1371/journal.pcbi.1005979
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The correlated variability in the responses of a neural population to the repeated presentation of a sensory stimulus is a universally observed phenomenon. Such correlations have been studied in much detail, both with respect to their mechanistic origin and to their influence on stimulus discrimination and on the per...
[ { "created": "Mon, 6 Feb 2017 11:13:15 GMT", "version": "v1" } ]
2018-07-04
[ [ "Pernice", "Volker", "" ], [ "da Silveira", "Rava Azeredo", "" ] ]
The correlated variability in the responses of a neural population to the repeated presentation of a sensory stimulus is a universally observed phenomenon. Such correlations have been studied in much detail, both with respect to their mechanistic origin and to their influence on stimulus discrimination and on the perfo...
2308.08898
Sitabhra Sinha
Anand Pathak, Shakti N. Menon and Sitabhra Sinha
A hierarchy index for networks in the brain reveals a complex entangled organizational structure
16 pages, 5 figures + 10 pages Supplementary Information
PNAS 121, e2314291121 (2024)
10.1073/pnas.2314291121
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Networks involved in information processing often have their nodes arranged hierarchically, with the majority of connections occurring in adjacent levels. However, despite being an intuitively appealing concept, the hierarchical organization of large networks, such as those in the brain, are difficult to identify, es...
[ { "created": "Thu, 17 Aug 2023 10:15:36 GMT", "version": "v1" } ]
2024-07-02
[ [ "Pathak", "Anand", "" ], [ "Menon", "Shakti N.", "" ], [ "Sinha", "Sitabhra", "" ] ]
Networks involved in information processing often have their nodes arranged hierarchically, with the majority of connections occurring in adjacent levels. However, despite being an intuitively appealing concept, the hierarchical organization of large networks, such as those in the brain, are difficult to identify, espe...
1102.4039
Andrew Gray Mr
Andrew R. Gray
Notes on Hybridization in Leaf frogs of the Genus Agalychnis (Anura, Hylidae, Phyllomedusinae)
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two species of Endangered Leaf frogs, Agalychnis moreletii and Agalychnis annae, belonging to the tree frog Subfamily Phyllomedusinae, Genus Agalychnis, were hybridized for the first time whilst being maintained in captivity. Previous to this, these allopatric Central American species were considered as being distinc...
[ { "created": "Sun, 20 Feb 2011 02:37:59 GMT", "version": "v1" } ]
2011-02-22
[ [ "Gray", "Andrew R.", "" ] ]
Two species of Endangered Leaf frogs, Agalychnis moreletii and Agalychnis annae, belonging to the tree frog Subfamily Phyllomedusinae, Genus Agalychnis, were hybridized for the first time whilst being maintained in captivity. Previous to this, these allopatric Central American species were considered as being distinctl...
q-bio/0609005
Horacio Ceva
E. Burgos, H. Ceva, R. Perazzo, M. Devoto, D. Medan, M. Zimmermann, A. M. Delbue
Why Nestedness in Mutualistic Networks?
Journal of Theoretical Biology (Accepted, 2007)
null
10.1016/j.jtbi.2007.07.030
null
q-bio.PE
null
We investigate the relationship between the nested organization of mutualistic systems and their robustness against the extinction of species. We establish that a nested pattern of contacts is the best possible one as far as robustness is concerned, but only when the least linked species have the greater probability ...
[ { "created": "Tue, 5 Sep 2006 14:00:56 GMT", "version": "v1" }, { "created": "Thu, 20 Sep 2007 16:53:20 GMT", "version": "v2" } ]
2007-09-20
[ [ "Burgos", "E.", "" ], [ "Ceva", "H.", "" ], [ "Perazzo", "R.", "" ], [ "Devoto", "M.", "" ], [ "Medan", "D.", "" ], [ "Zimmermann", "M.", "" ], [ "Delbue", "A. M.", "" ] ]
We investigate the relationship between the nested organization of mutualistic systems and their robustness against the extinction of species. We establish that a nested pattern of contacts is the best possible one as far as robustness is concerned, but only when the least linked species have the greater probability of...
1511.03965
Paul Fran\c{c}ois
Paul Fran\c{c}ois, Mathieu Hemery, Kyle A. Johnson, Laura N. Saunders
Phenotypic spandrel: absolute discrimination and ligand antagonism
null
null
10.1088/1478-3975/13/6/066011
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the general problem of sensitive and specific discrimination between biochemical species. An important instance is immune discrimination between self and not-self, where it is also observed experimentally that ligands just below discrimination threshold negatively impact response, a phenomenon called anta...
[ { "created": "Thu, 12 Nov 2015 16:59:31 GMT", "version": "v1" }, { "created": "Fri, 8 Jan 2016 15:49:29 GMT", "version": "v2" }, { "created": "Fri, 7 Oct 2016 15:52:09 GMT", "version": "v3" } ]
2016-12-21
[ [ "François", "Paul", "" ], [ "Hemery", "Mathieu", "" ], [ "Johnson", "Kyle A.", "" ], [ "Saunders", "Laura N.", "" ] ]
We consider the general problem of sensitive and specific discrimination between biochemical species. An important instance is immune discrimination between self and not-self, where it is also observed experimentally that ligands just below discrimination threshold negatively impact response, a phenomenon called antago...
1410.8087
Gabriele Micali
Diana Clausznitzer, Gabriele Micali, Silke Neumann, Victor Sourjik and Robert G. Endres
Predicting chemical environments of bacteria from receptor signaling
DG and GM contributed equally to this work
PLoS Comput Biol 10(10): e1003870 (2014)
10.1371/journal.pcbi.1003870
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sensory systems have evolved to respond to input stimuli of certain statistical properties, and to reliably transmit this information through biochemical pathways. Hence, for an experimentally well-characterized sensory system, one ought to be able to extract valuable information about the statistics of the stimuli. ...
[ { "created": "Mon, 27 Oct 2014 11:38:09 GMT", "version": "v1" } ]
2014-10-30
[ [ "Clausznitzer", "Diana", "" ], [ "Micali", "Gabriele", "" ], [ "Neumann", "Silke", "" ], [ "Sourjik", "Victor", "" ], [ "Endres", "Robert G.", "" ] ]
Sensory systems have evolved to respond to input stimuli of certain statistical properties, and to reliably transmit this information through biochemical pathways. Hence, for an experimentally well-characterized sensory system, one ought to be able to extract valuable information about the statistics of the stimuli. Ba...
1304.6661
Carsten Conradi
Katharina Holstein and Dietrich Flockerzi and Carsten Conradi
Multistationarity in sequential distributed multisite phosphorylation networks
null
null
null
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multisite phosphorylation networks are encountered in many intracellular processes like signal transduction, cell-cycle control or nuclear signal integration. In this contribution networks describing the phosphorylation and dephosphorylation of a protein at $n$ sites in a sequential distributive mechanism are conside...
[ { "created": "Wed, 24 Apr 2013 16:39:38 GMT", "version": "v1" }, { "created": "Tue, 7 May 2013 13:34:12 GMT", "version": "v2" }, { "created": "Tue, 2 Jul 2013 16:02:06 GMT", "version": "v3" } ]
2013-07-03
[ [ "Holstein", "Katharina", "" ], [ "Flockerzi", "Dietrich", "" ], [ "Conradi", "Carsten", "" ] ]
Multisite phosphorylation networks are encountered in many intracellular processes like signal transduction, cell-cycle control or nuclear signal integration. In this contribution networks describing the phosphorylation and dephosphorylation of a protein at $n$ sites in a sequential distributive mechanism are considere...
q-bio/0612027
Michael Deem
Jeong-Man Park and Michael W. Deem
Phase Diagrams of Quasispecies Theory with Recombination and Horizontal Gene Transfer
5 pages, 1 figure, to appear in Physics Review Letters
null
10.1103/PhysRevLett.98.058101
null
q-bio.PE
null
We consider how transfer of genetic information between individuals influences the phase diagram and mean fitness of both the Eigen and the parallel, or Crow-Kimura, models of evolution. In the absence of genetic transfer, these physical models of evolution consider the replication and point mutation of the genomes o...
[ { "created": "Thu, 14 Dec 2006 21:33:05 GMT", "version": "v1" } ]
2009-11-13
[ [ "Park", "Jeong-Man", "" ], [ "Deem", "Michael W.", "" ] ]
We consider how transfer of genetic information between individuals influences the phase diagram and mean fitness of both the Eigen and the parallel, or Crow-Kimura, models of evolution. In the absence of genetic transfer, these physical models of evolution consider the replication and point mutation of the genomes of ...
1203.2883
Serena Bradde
Vanni Bucci, Serena Bradde, Giulio Biroli and Joao B. Xavier
Social interaction, noise and antibiotic-mediated switches in the intestinal microbiota
20 pages, 5 figures accepted for publication in Plos Comp Bio. Supplementary video and information available
null
10.1371/journal.pcbi.1002497
null
q-bio.QM cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The intestinal microbiota plays important roles in digestion and resistance against entero-pathogens. As with other ecosystems, its species composition is resilient against small disturbances but strong perturbations such as antibiotics can affect the consortium dramatically. Antibiotic cessation does not necessarily...
[ { "created": "Tue, 13 Mar 2012 18:05:39 GMT", "version": "v1" } ]
2015-06-04
[ [ "Bucci", "Vanni", "" ], [ "Bradde", "Serena", "" ], [ "Biroli", "Giulio", "" ], [ "Xavier", "Joao B.", "" ] ]
The intestinal microbiota plays important roles in digestion and resistance against entero-pathogens. As with other ecosystems, its species composition is resilient against small disturbances but strong perturbations such as antibiotics can affect the consortium dramatically. Antibiotic cessation does not necessarily r...
1606.02801
Edmund Crampin
Patrick E. McSharry and Edmund J. Crampin
Identifying statistically significant patterns in gene expression data
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: Clustering techniques are routinely applied to identify patterns of co-expression in gene expression data. Co-regulation, and involvement of genes in similar cellular function, is subsequently inferred from the clusters which are obtained. Increasingly sophisticated algorithms have been applied to microar...
[ { "created": "Thu, 9 Jun 2016 02:20:57 GMT", "version": "v1" } ]
2016-06-10
[ [ "McSharry", "Patrick E.", "" ], [ "Crampin", "Edmund J.", "" ] ]
Motivation: Clustering techniques are routinely applied to identify patterns of co-expression in gene expression data. Co-regulation, and involvement of genes in similar cellular function, is subsequently inferred from the clusters which are obtained. Increasingly sophisticated algorithms have been applied to microarra...
1206.4434
S\'ilvio Duarte Queir\'os M.
Andrea Cavagna, Silvio M. Duarte Queiros, Irene Giardina, Fabio Stefanini, Massimiliano Viale
Diffusion of individual birds in starling flocks
22 pages, 10 figures
Proc. R. Soc. B 280, 20122484 (2013)
10.1098/rspb.2012.2484
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Flocking is a paradigmatic example of collective animal behaviour, where decentralized interaction rules give rise to a globally ordered state. In the emergence of order out of self-organization we find similarities between biological systems, as bird flocks, and some physical systems, as ferromagnets. In both cases,...
[ { "created": "Wed, 20 Jun 2012 09:52:31 GMT", "version": "v1" }, { "created": "Wed, 13 Feb 2013 20:34:18 GMT", "version": "v2" } ]
2013-02-14
[ [ "Cavagna", "Andrea", "" ], [ "Queiros", "Silvio M. Duarte", "" ], [ "Giardina", "Irene", "" ], [ "Stefanini", "Fabio", "" ], [ "Viale", "Massimiliano", "" ] ]
Flocking is a paradigmatic example of collective animal behaviour, where decentralized interaction rules give rise to a globally ordered state. In the emergence of order out of self-organization we find similarities between biological systems, as bird flocks, and some physical systems, as ferromagnets. In both cases, t...
1806.07469
Xiaochang Leng
Xiaochang Leng, Yingchao Yang, Xiaomin Deng, Susan M. Lessner, Michael A. Sutton, Tarek Shazly
Micromechanical Experimental and Numerical Studies of Collagen Fibers Failure in Arterial Tissue
33 pages, 11 figures
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Arterial tissue failures lead to a number of clinical conditions that develop rapidly and unpredictably in vivo. Structural components and their interfacial mechanical strength of arterial tissue play a critical role in the process of arterail delamination. Therefore, there is a pressing need to understand the microm...
[ { "created": "Tue, 19 Jun 2018 21:11:39 GMT", "version": "v1" } ]
2018-06-21
[ [ "Leng", "Xiaochang", "" ], [ "Yang", "Yingchao", "" ], [ "Deng", "Xiaomin", "" ], [ "Lessner", "Susan M.", "" ], [ "Sutton", "Michael A.", "" ], [ "Shazly", "Tarek", "" ] ]
Arterial tissue failures lead to a number of clinical conditions that develop rapidly and unpredictably in vivo. Structural components and their interfacial mechanical strength of arterial tissue play a critical role in the process of arterail delamination. Therefore, there is a pressing need to understand the micromec...
2105.13288
Soumyajyoti Biswas
Anvesh Reddy, Hanesh Koganti, Sai Krishna, Suhas Reddy, Soumyajyoti Biswas
Machine learning predictions of COVID-19 second wave end-times in Indian states
8 pages, 6 figures, 1 table
Indian Journal of Physics (2021)
10.1007/s12648-021-02195-x
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The estimate of the remaining time of an ongoing wave of epidemic spreading is a critical issue. Due to the variations of a wide range of parameters in an epidemic, for simple models such as Susceptible-Infected-Removed (SIR) model, it is difficult to estimate such a time scale. On the other hand, multidimensional da...
[ { "created": "Wed, 26 May 2021 14:19:22 GMT", "version": "v1" } ]
2021-10-12
[ [ "Reddy", "Anvesh", "" ], [ "Koganti", "Hanesh", "" ], [ "Krishna", "Sai", "" ], [ "Reddy", "Suhas", "" ], [ "Biswas", "Soumyajyoti", "" ] ]
The estimate of the remaining time of an ongoing wave of epidemic spreading is a critical issue. Due to the variations of a wide range of parameters in an epidemic, for simple models such as Susceptible-Infected-Removed (SIR) model, it is difficult to estimate such a time scale. On the other hand, multidimensional data...
2308.05115
Ziyang Xu
Ziyang Xu, Haitian Zhong, Bingrui He, Xueying Wang and Tianchi Lu
PTransIPs: Identification of phosphorylation sites enhanced by protein PLM embeddings
null
null
10.1109/JBHI.2024.3377362
null
q-bio.QM cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Phosphorylation is pivotal in numerous fundamental cellular processes and plays a significant role in the onset and progression of various diseases. The accurate identification of these phosphorylation sites is crucial for unraveling the molecular mechanisms within cells and during viral infections, potentially leadi...
[ { "created": "Tue, 8 Aug 2023 07:50:38 GMT", "version": "v1" }, { "created": "Fri, 18 Aug 2023 06:35:50 GMT", "version": "v2" }, { "created": "Wed, 13 Mar 2024 05:02:32 GMT", "version": "v3" } ]
2024-03-27
[ [ "Xu", "Ziyang", "" ], [ "Zhong", "Haitian", "" ], [ "He", "Bingrui", "" ], [ "Wang", "Xueying", "" ], [ "Lu", "Tianchi", "" ] ]
Phosphorylation is pivotal in numerous fundamental cellular processes and plays a significant role in the onset and progression of various diseases. The accurate identification of these phosphorylation sites is crucial for unraveling the molecular mechanisms within cells and during viral infections, potentially leading...
2302.06842
Gerry Gralton
S. Gerry Gralton, Farah Alkhatib, Ben Zwick, George Bourantas, Adam Wittek, Karol Miller
Random boundaries: quantifying segmentation uncertainty in solutions to boundary-value problems
null
null
null
null
q-bio.TO
http://creativecommons.org/licenses/by-nc-nd/4.0/
Engineering simulations using boundary-value partial differential equations often implicitly assume that the uncertainty in the location of the boundary has a negligible impact on the output of the simulation. In this work, we develop a novel method for describing the geometric uncertainty in image-derived models and...
[ { "created": "Tue, 14 Feb 2023 05:33:06 GMT", "version": "v1" }, { "created": "Sun, 28 Jan 2024 12:53:23 GMT", "version": "v2" }, { "created": "Mon, 10 Jun 2024 02:56:39 GMT", "version": "v3" } ]
2024-06-11
[ [ "Gralton", "S. Gerry", "" ], [ "Alkhatib", "Farah", "" ], [ "Zwick", "Ben", "" ], [ "Bourantas", "George", "" ], [ "Wittek", "Adam", "" ], [ "Miller", "Karol", "" ] ]
Engineering simulations using boundary-value partial differential equations often implicitly assume that the uncertainty in the location of the boundary has a negligible impact on the output of the simulation. In this work, we develop a novel method for describing the geometric uncertainty in image-derived models and u...
1907.09151
Luca Ciandrini
Pascal S. Rogalla, Timothy J. Rudge and Luca Ciandrini
An equilibrium model for ribosome competition
null
null
10.1088/1478-3975/ab4fbc
null
q-bio.SC cond-mat.stat-mech physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The number of ribosomes in a cell is considered as limiting, and gene expression is thus largely determined by their cellular concentration. In this work we develop a toy model to study the trade-off between the ribosomal supply and the demand of the translation machinery, dictated by the composition of the transcrip...
[ { "created": "Mon, 22 Jul 2019 06:35:29 GMT", "version": "v1" }, { "created": "Mon, 14 Oct 2019 20:42:24 GMT", "version": "v2" } ]
2020-02-19
[ [ "Rogalla", "Pascal S.", "" ], [ "Rudge", "Timothy J.", "" ], [ "Ciandrini", "Luca", "" ] ]
The number of ribosomes in a cell is considered as limiting, and gene expression is thus largely determined by their cellular concentration. In this work we develop a toy model to study the trade-off between the ribosomal supply and the demand of the translation machinery, dictated by the composition of the transcript ...
1806.01467
Susan Cheng
Jeramie D. Watrous, Teemu Niiranen, Kim A. Lagerborg, Mir Henglin, Yong-Jian Xu, Sonia Sharma, Ramachandran S. Vasan, Martin G. Larson, Aaron Armando, Oswald Quehenberger, Edward A. Dennis, Susan Cheng, Mohit Jain
Directed Non-Targeted Mass Spectrometry and Chemical Networking for Discovery of Eicosanoids
null
null
null
null
q-bio.BM
http://creativecommons.org/licenses/by-nc-sa/4.0/
Eicosanoids and related species are critical, small bioactive mediators of human physiology and inflammation. While ~1100 distinct eicosanoids have been predicted to exist, to date, less than 150 of these molecules have been measured in humans, limiting our understanding of eicosanoids and their role in human biology...
[ { "created": "Tue, 5 Jun 2018 02:24:59 GMT", "version": "v1" } ]
2018-06-06
[ [ "Watrous", "Jeramie D.", "" ], [ "Niiranen", "Teemu", "" ], [ "Lagerborg", "Kim A.", "" ], [ "Henglin", "Mir", "" ], [ "Xu", "Yong-Jian", "" ], [ "Sharma", "Sonia", "" ], [ "Vasan", "Ramachandran S.", "" ...
Eicosanoids and related species are critical, small bioactive mediators of human physiology and inflammation. While ~1100 distinct eicosanoids have been predicted to exist, to date, less than 150 of these molecules have been measured in humans, limiting our understanding of eicosanoids and their role in human biology. ...
1208.1560
Jiang Zhang
Jiang Zhang and Yuanjing Feng
Common Patterns of Energy Flow and Biomass Distribution on Weighted Food Webs
26 pages, 7 figures
null
null
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Weights of edges and nodes on food webs which are available from the empirical data hide much information about energy flows and biomass distributions in ecosystem. We define a set of variables related to weights for each species $i$, including the throughflow $T_i$, the total biomass $X_i$, and the dissipated flow $...
[ { "created": "Wed, 8 Aug 2012 01:25:39 GMT", "version": "v1" } ]
2012-08-09
[ [ "Zhang", "Jiang", "" ], [ "Feng", "Yuanjing", "" ] ]
Weights of edges and nodes on food webs which are available from the empirical data hide much information about energy flows and biomass distributions in ecosystem. We define a set of variables related to weights for each species $i$, including the throughflow $T_i$, the total biomass $X_i$, and the dissipated flow $D_...
2102.04720
Brian Mathias
Brian Mathias, Christian Andrae, Anika Schwager, Manuela Macedonia, Katharina von Kriegstein
Twelve- and fourteen-year-old school children differentially benefit from sensorimotor- and multisensory-enriched vocabulary training
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Both children and adults have been shown to benefit from the integration of multisensory and sensorimotor enrichment into pedagogy. For example, integrating pictures or gestures into foreign language (L2) vocabulary learning can improve learning outcomes relative to unisensory learning. However, whereas adults seem t...
[ { "created": "Tue, 9 Feb 2021 09:32:12 GMT", "version": "v1" } ]
2021-02-10
[ [ "Mathias", "Brian", "" ], [ "Andrae", "Christian", "" ], [ "Schwager", "Anika", "" ], [ "Macedonia", "Manuela", "" ], [ "von Kriegstein", "Katharina", "" ] ]
Both children and adults have been shown to benefit from the integration of multisensory and sensorimotor enrichment into pedagogy. For example, integrating pictures or gestures into foreign language (L2) vocabulary learning can improve learning outcomes relative to unisensory learning. However, whereas adults seem to ...
q-bio/0407023
Steven Samuel Plotkin
C. Clementi and S. S. Plotkin
The effects of non-native interactions on protein folding rates: Theory and simulation
35 pages, 12 figures, 1 table
Protein Science 2004 13: 1750-1766
null
null
q-bio.BM
null
Proteins are minimally frustrated polymers. However, for realistic protein models non-native interactions must be taken into account. In this paper we analyze the effect of non-native interactions on the folding rate and on the folding free energy barrier. We present an analytic theory to account for the modification...
[ { "created": "Thu, 15 Jul 2004 01:44:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Clementi", "C.", "" ], [ "Plotkin", "S. S.", "" ] ]
Proteins are minimally frustrated polymers. However, for realistic protein models non-native interactions must be taken into account. In this paper we analyze the effect of non-native interactions on the folding rate and on the folding free energy barrier. We present an analytic theory to account for the modification o...
1907.06909
Kevin Woods
Kevin J P Woods, Adam Hewett, Andrea Spencer, Benjamin Morillon, Psyche Loui
Modulation in background music influences sustained attention
20 pages, 5 figures. Behavioral portion of larger planned manuscript to include neuroimaging. Comments welcome (kevin@brain.fm)
null
null
null
q-bio.NC q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background music is known to affect performance on cognitive tasks, possibly due to temporal modulations in the acoustic signal, but little is known about how music should be designed to aid performance. Since acoustic modulation has been shown to shape neural activity in known networks, we chose to test the effects ...
[ { "created": "Tue, 16 Jul 2019 09:33:39 GMT", "version": "v1" } ]
2019-07-17
[ [ "Woods", "Kevin J P", "" ], [ "Hewett", "Adam", "" ], [ "Spencer", "Andrea", "" ], [ "Morillon", "Benjamin", "" ], [ "Loui", "Psyche", "" ] ]
Background music is known to affect performance on cognitive tasks, possibly due to temporal modulations in the acoustic signal, but little is known about how music should be designed to aid performance. Since acoustic modulation has been shown to shape neural activity in known networks, we chose to test the effects of...
1810.08362
Gerardo F. Goya
V. Raffa, F. Falcone, M.P. Calatayud, G.F. Goya and A. Cuschieri
Pico-Newton mechanical forces promote neurite growth
16 pages, 3 figures
null
10.1016/j.bpj.2018.10.009
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Investigations over half a century have indicated that mechanical forces induce neurite growth - with neurites elongating at a rate of 0.1-0.3{\mu}mh^{-1} per pico-Newton (pN) of applied force - when mechanical tension exceeds a threshold, with this being identified as 400-1000 pN for neurites of PC12 cells. Here we ...
[ { "created": "Fri, 19 Oct 2018 06:20:53 GMT", "version": "v1" } ]
2018-10-22
[ [ "Raffa", "V.", "" ], [ "Falcone", "F.", "" ], [ "Calatayud", "M. P.", "" ], [ "Goya", "G. F.", "" ], [ "Cuschieri", "A.", "" ] ]
Investigations over half a century have indicated that mechanical forces induce neurite growth - with neurites elongating at a rate of 0.1-0.3{\mu}mh^{-1} per pico-Newton (pN) of applied force - when mechanical tension exceeds a threshold, with this being identified as 400-1000 pN for neurites of PC12 cells. Here we de...
0912.5450
Piotr Su{\l}kowski
Joanna I. Su{\l}kowska, Piotr Su{\l}kowski, Jos\'e N. Onuchic
Dodging the crisis of folding proteins with knots
29 pages, 11 figures, 1 table
PNAS 106 (2009) 3119-3124
10.1073/pnas.0811147106
null
q-bio.BM cond-mat.soft
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Proteins with nontrivial topology, containing knots and slipknots, have the ability to fold to their native states without any additional external forces invoked. A mechanism is suggested for folding of these proteins, such as YibK and YbeA, which involves an intermediate configuration with a slipknot. It elucidates ...
[ { "created": "Wed, 30 Dec 2009 20:55:10 GMT", "version": "v1" } ]
2010-01-06
[ [ "Sułkowska", "Joanna I.", "" ], [ "Sułkowski", "Piotr", "" ], [ "Onuchic", "José N.", "" ] ]
Proteins with nontrivial topology, containing knots and slipknots, have the ability to fold to their native states without any additional external forces invoked. A mechanism is suggested for folding of these proteins, such as YibK and YbeA, which involves an intermediate configuration with a slipknot. It elucidates th...
1702.06665
Michael Beyeler
Michael Beyeler and Nikil Dutt and Jeffrey L. Krichmar
Visual response properties of MSTd emerge from a sparse population code
null
null
10.1523/JNEUROSCI.0396-16.2016
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neurons in the dorsal subregion of the medial superior temporal (MSTd) area respond to large, complex patterns of retinal flow, implying a role in the analysis of self-motion. Some neurons are selective for the expanding radial motion that occurs as an observer moves through the environment ("heading"), and computati...
[ { "created": "Wed, 22 Feb 2017 03:41:02 GMT", "version": "v1" } ]
2017-02-24
[ [ "Beyeler", "Michael", "" ], [ "Dutt", "Nikil", "" ], [ "Krichmar", "Jeffrey L.", "" ] ]
Neurons in the dorsal subregion of the medial superior temporal (MSTd) area respond to large, complex patterns of retinal flow, implying a role in the analysis of self-motion. Some neurons are selective for the expanding radial motion that occurs as an observer moves through the environment ("heading"), and computation...
1510.06748
Luca Ferretti
Luca Ferretti, Alice Ledda, Guillaume Achaz, Thomas Wiehe and Sebastian E. Ramos-Onsins
Decomposing the site frequency spectrum: the impact of tree topology on neutrality tests
23 pages, 8 figures
null
null
null
q-bio.PE q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the dependence of the site frequency spectrum (SFS) on the topological structure of genealogical trees. We show that basic population genetic statistics - for instance estimators of $\theta$ or neutrality tests such as Tajima's $D$ - can be decomposed into components of waiting times between coalescent...
[ { "created": "Thu, 22 Oct 2015 20:10:48 GMT", "version": "v1" }, { "created": "Thu, 12 Jan 2017 23:50:59 GMT", "version": "v2" } ]
2017-01-16
[ [ "Ferretti", "Luca", "" ], [ "Ledda", "Alice", "" ], [ "Achaz", "Guillaume", "" ], [ "Wiehe", "Thomas", "" ], [ "Ramos-Onsins", "Sebastian E.", "" ] ]
We investigate the dependence of the site frequency spectrum (SFS) on the topological structure of genealogical trees. We show that basic population genetic statistics - for instance estimators of $\theta$ or neutrality tests such as Tajima's $D$ - can be decomposed into components of waiting times between coalescent e...
0711.1010
Akira Kinjo
Akira R. Kinjo and Haruki Nakamura
Nature of protein family signatures: Insights from singular value analysis of position-specific scoring matrices
22 pages, 7 figures, 4 tables
PLoS ONE, 3:e1963 (2008)
10.1371/journal.pone.0001963
null
q-bio.BM
null
Position-specific scoring matrices (PSSMs) are useful for detecting weak homology in protein sequence analysis, and they are thought to contain some essential signatures of the protein families. In order to elucidate what kind of ingredients constitute such family-specific signatures, we apply singular value decompos...
[ { "created": "Wed, 7 Nov 2007 05:20:40 GMT", "version": "v1" } ]
2008-04-14
[ [ "Kinjo", "Akira R.", "" ], [ "Nakamura", "Haruki", "" ] ]
Position-specific scoring matrices (PSSMs) are useful for detecting weak homology in protein sequence analysis, and they are thought to contain some essential signatures of the protein families. In order to elucidate what kind of ingredients constitute such family-specific signatures, we apply singular value decomposit...
2305.02223
Maryam Al Yahyai
Maryam Al-Yahyai (1), Fatma Al-Musalhi (1), Nasser Al-Salti (2) and Ibrahim Elmojtaba (1) ((1) Department of Mathematics, College of Science, Sultan Qaboos University, Muscat, Oman, (2) Department of Applied Mathematics and Science, National University of Science and Technology, Muscat, Oman)
The Role of Quarantine and Isolation in Controlling COVID-19 Hospitalization in Oman
34 pages
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we build a mathematical model for the dynamics of COVID-19 to assess the impact of placing healthy individuals in quarantine and isolating infected ones on the number of hospitalization and intensive care unit cases. The proposed model is fully analyzed in order to prove the positivity of solutions, to...
[ { "created": "Wed, 3 May 2023 16:03:27 GMT", "version": "v1" } ]
2023-05-04
[ [ "Al-Yahyai", "Maryam", "" ], [ "Al-Musalhi", "Fatma", "" ], [ "Al-Salti", "Nasser", "" ], [ "Elmojtaba", "Ibrahim", "" ] ]
In this paper, we build a mathematical model for the dynamics of COVID-19 to assess the impact of placing healthy individuals in quarantine and isolating infected ones on the number of hospitalization and intensive care unit cases. The proposed model is fully analyzed in order to prove the positivity of solutions, to s...
2102.03676
Xavier Michalet
Xavier Michalet
An overview of continuous and discrete phasor analysis of binned or time-gated periodic decays
12 pages, 4 figures, submitted as a Proceedings of SPIE (BiOS Conference 11648, March 6-11, 2021)
Proc. SPIE 11648 (2021) 116480E
10.1063/5.0027834
null
q-bio.QM
http://creativecommons.org/licenses/by-nc-nd/4.0/
Time-resolved analysis of periodically excited luminescence decays by the phasor method in the presence of time-gating or binning is revisited. Analytical expressions for discrete configurations of square gates are derived and the locus of the phasors of such modified periodic single-exponential decays is compared to...
[ { "created": "Sat, 6 Feb 2021 22:00:55 GMT", "version": "v1" }, { "created": "Thu, 11 Feb 2021 21:49:10 GMT", "version": "v2" } ]
2024-06-12
[ [ "Michalet", "Xavier", "" ] ]
Time-resolved analysis of periodically excited luminescence decays by the phasor method in the presence of time-gating or binning is revisited. Analytical expressions for discrete configurations of square gates are derived and the locus of the phasors of such modified periodic single-exponential decays is compared to t...
2004.02398
Siyu Liu
Jiwei Jia, Siyu Liu, Jing Ding, Guidong Liao, Lihua Zhang, Ran Zhang
The impact of multilateral imported cases of COVID-19 on the epidemic control in China
null
null
null
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nowadays, the epidemic of COVID-19 in China is under control. However, the epidemic are developing rapidly around the world. Due to the normal migration of population, China is facing high risk from imported cases. The potential specific medicine and vaccine is still in the process of clinical trials. Currently, cont...
[ { "created": "Mon, 6 Apr 2020 04:31:52 GMT", "version": "v1" } ]
2020-04-07
[ [ "Jia", "Jiwei", "" ], [ "Liu", "Siyu", "" ], [ "Ding", "Jing", "" ], [ "Liao", "Guidong", "" ], [ "Zhang", "Lihua", "" ], [ "Zhang", "Ran", "" ] ]
Nowadays, the epidemic of COVID-19 in China is under control. However, the epidemic are developing rapidly around the world. Due to the normal migration of population, China is facing high risk from imported cases. The potential specific medicine and vaccine is still in the process of clinical trials. Currently, contro...
1202.4691
Teresa Ruiz Herrero
Teresa Ruiz-Herrero, Enrique Velasco, Michael F. Hagan
Mechanisms of budding of nanoscale particles through lipid bilayers
null
null
null
null
q-bio.SC cond-mat.soft
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the budding of a nanoscale particle through a lipid bilayer using molecular dynamics simulations, free energy calculations, and an elastic theory, with the aim of determining the extent to which equilibrium elasticity theory can describe the factors that control the mechanism and efficiency of budding. The...
[ { "created": "Tue, 21 Feb 2012 16:19:48 GMT", "version": "v1" } ]
2012-02-22
[ [ "Ruiz-Herrero", "Teresa", "" ], [ "Velasco", "Enrique", "" ], [ "Hagan", "Michael F.", "" ] ]
We examine the budding of a nanoscale particle through a lipid bilayer using molecular dynamics simulations, free energy calculations, and an elastic theory, with the aim of determining the extent to which equilibrium elasticity theory can describe the factors that control the mechanism and efficiency of budding. The p...
1806.05017
Jordi Sol\'e-Casals
Jordi Sole-Casals, Cesar F. Caiafa, Qibin Zhao and Adrzej Cichocki
Brain-Computer Interface with Corrupted EEG Data: A Tensor Completion Approach
21 pages, 3 tables, 4 figures
Sole-Casals, J., Caiafa, C.F., Zhao, Q. et al. Cogn Comput (2018). https://doi.org/10.1007/s12559-018-9574-9
10.1007/s12559-018-9574-9
null
q-bio.QM eess.SP stat.ML
http://creativecommons.org/licenses/by/4.0/
One of the current issues in Brain-Computer Interface is how to deal with noisy Electroencephalography measurements organized as multidimensional datasets. On the other hand, recently, significant advances have been made in multidimensional signal completion algorithms that exploit tensor decomposition models to capt...
[ { "created": "Wed, 13 Jun 2018 13:16:28 GMT", "version": "v1" }, { "created": "Thu, 26 Jul 2018 15:53:29 GMT", "version": "v2" } ]
2018-07-27
[ [ "Sole-Casals", "Jordi", "" ], [ "Caiafa", "Cesar F.", "" ], [ "Zhao", "Qibin", "" ], [ "Cichocki", "Adrzej", "" ] ]
One of the current issues in Brain-Computer Interface is how to deal with noisy Electroencephalography measurements organized as multidimensional datasets. On the other hand, recently, significant advances have been made in multidimensional signal completion algorithms that exploit tensor decomposition models to captur...
1909.10139
Alex McAvoy
Alex McAvoy, Benjamin Allen, Martin A. Nowak
Social goods dilemmas in heterogeneous societies
72 pages; final version
Nature Human Behaviour (2020)
10.1038/s41562-020-0881-2
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Prosocial behaviors are encountered in the donation game, the prisoner's dilemma, relaxed social dilemmas, and public goods games. Many studies assume that the population structure is homogeneous, meaning all individuals have the same number of interaction partners, or that the social good is of one particular type. ...
[ { "created": "Mon, 23 Sep 2019 03:30:07 GMT", "version": "v1" }, { "created": "Fri, 1 May 2020 03:53:18 GMT", "version": "v2" } ]
2020-05-28
[ [ "McAvoy", "Alex", "" ], [ "Allen", "Benjamin", "" ], [ "Nowak", "Martin A.", "" ] ]
Prosocial behaviors are encountered in the donation game, the prisoner's dilemma, relaxed social dilemmas, and public goods games. Many studies assume that the population structure is homogeneous, meaning all individuals have the same number of interaction partners, or that the social good is of one particular type. He...
1605.01905
Carina Curto
Carina Curto
What can topology tell us about the neural code?
16 pages, 9 figures
Bulletin of the AMS, vol. 54, no. 1, pp. 63-78, January 2017
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neuroscience is undergoing a period of rapid experimental progress and expansion. New mathematical tools, previously unknown in the neuroscience community, are now being used to tackle fundamental questions and analyze emerging data sets. Consistent with this trend, the last decade has seen an uptick in the use of to...
[ { "created": "Fri, 6 May 2016 12:06:15 GMT", "version": "v1" } ]
2016-12-28
[ [ "Curto", "Carina", "" ] ]
Neuroscience is undergoing a period of rapid experimental progress and expansion. New mathematical tools, previously unknown in the neuroscience community, are now being used to tackle fundamental questions and analyze emerging data sets. Consistent with this trend, the last decade has seen an uptick in the use of topo...
2009.10049
Ananth V S
Bishal Chhetri, Vijay M. Bhagat, D. K. K. Vamsi, Ananth V S, Bhanu Prakash, Swapna Muthuswamy, Pradeep Deshmukh, Carani B Sanjeevi
Optimal Drug Regimen and Combined Drug Therapy and its Efficacy in the Treatment of COVID-19 : An Within-Host Modeling Study
16 pages, 13 figures
null
10.1007/s10441-022-09440-8
null
q-bio.PE math.DS math.OC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The COVID-19 pandemic has resulted in more than 30.35 million infections and 9, 50, 625 deaths in 212 countries over the last few months. Different drug intervention acting at multiple stages of pathogenesis of COVID-19 can substantially reduce the infection induced mortality. The current within-host mathematical mod...
[ { "created": "Mon, 21 Sep 2020 17:43:20 GMT", "version": "v1" } ]
2023-09-01
[ [ "Chhetri", "Bishal", "" ], [ "Bhagat", "Vijay M.", "" ], [ "Vamsi", "D. K. K.", "" ], [ "S", "Ananth V", "" ], [ "Prakash", "Bhanu", "" ], [ "Muthuswamy", "Swapna", "" ], [ "Deshmukh", "Pradeep", "" ], ...
The COVID-19 pandemic has resulted in more than 30.35 million infections and 9, 50, 625 deaths in 212 countries over the last few months. Different drug intervention acting at multiple stages of pathogenesis of COVID-19 can substantially reduce the infection induced mortality. The current within-host mathematical model...
1401.0002
Evgenii Levites
Svetlana Sergeevna Kirikovich and Evgenii Vladimirovich Levites
Phenotypic class ratios as marker signs of different types of agamospermy
8 pages, 2 tables, 23 references
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This article focuses on the development of the method for the genetic classification of agamospermous reproduction types in plants using sugar beet as an example. The classification feasibility is ensured by the use of isozymes as genetic markers allowing the identification of all three phenotypic classes in the prog...
[ { "created": "Sat, 28 Dec 2013 11:39:53 GMT", "version": "v1" } ]
2014-01-03
[ [ "Kirikovich", "Svetlana Sergeevna", "" ], [ "Levites", "Evgenii Vladimirovich", "" ] ]
This article focuses on the development of the method for the genetic classification of agamospermous reproduction types in plants using sugar beet as an example. The classification feasibility is ensured by the use of isozymes as genetic markers allowing the identification of all three phenotypic classes in the progen...
1107.2834
John Burke
John Burke, Mathieu Desroches, Anna M. Barry, Tasso J. Kaper, and Mark A. Kramer
A showcase of torus canards in neuronal bursters
null
null
null
null
q-bio.NC math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Rapid action potential generation --- spiking --- and alternating intervals of spiking and quiescence --- bursting --- are two dynamic patterns observed in neuronal activity. In computational models of neuronal systems, the transition from spiking to bursting often exhibits complex bifurcation structure. One type of ...
[ { "created": "Thu, 14 Jul 2011 14:14:29 GMT", "version": "v1" } ]
2011-07-15
[ [ "Burke", "John", "" ], [ "Desroches", "Mathieu", "" ], [ "Barry", "Anna M.", "" ], [ "Kaper", "Tasso J.", "" ], [ "Kramer", "Mark A.", "" ] ]
Rapid action potential generation --- spiking --- and alternating intervals of spiking and quiescence --- bursting --- are two dynamic patterns observed in neuronal activity. In computational models of neuronal systems, the transition from spiking to bursting often exhibits complex bifurcation structure. One type of tr...
1909.13327
Christoph Feinauer
Matteo Negri, Davide Bergamini, Carlo Baldassi, Riccardo Zecchina, Christoph Feinauer
Natural representation of composite data with replicated autoencoders
11 pages, 4 figures
null
null
null
q-bio.QM cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Generative processes in biology and other fields often produce data that can be regarded as resulting from a composition of basic features. Here we present an unsupervised method based on autoencoders for inferring these basic features of data. The main novelty in our approach is that the training is based on the opt...
[ { "created": "Sun, 29 Sep 2019 17:41:44 GMT", "version": "v1" } ]
2019-10-04
[ [ "Negri", "Matteo", "" ], [ "Bergamini", "Davide", "" ], [ "Baldassi", "Carlo", "" ], [ "Zecchina", "Riccardo", "" ], [ "Feinauer", "Christoph", "" ] ]
Generative processes in biology and other fields often produce data that can be regarded as resulting from a composition of basic features. Here we present an unsupervised method based on autoencoders for inferring these basic features of data. The main novelty in our approach is that the training is based on the optim...
1408.2253
Tatjana Tchumatchenko
T. Tchumatchenko, T. Reichenbach
Cochlear-bone wave can yield a hearing sensation as well as otoacoustic emission
37 pages, 4 figures, Nature Communications 2014
null
10.1038/ncomms5160
null
q-bio.QM q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A hearing sensation arises when the elastic basilar membrane inside the cochlea vibrates. The basilar membrane is typically set into motion through airborne sound that displaces the middle ear and induces a pressure difference across the membrane. A second, alternative pathway exists, however: stimulation of the coch...
[ { "created": "Sun, 10 Aug 2014 16:55:32 GMT", "version": "v1" } ]
2015-06-22
[ [ "Tchumatchenko", "T.", "" ], [ "Reichenbach", "T.", "" ] ]
A hearing sensation arises when the elastic basilar membrane inside the cochlea vibrates. The basilar membrane is typically set into motion through airborne sound that displaces the middle ear and induces a pressure difference across the membrane. A second, alternative pathway exists, however: stimulation of the cochle...
1005.4393
Adrian Melott
Adrian L. Melott (University of Kansas) and Richard K. Bambach (National Museum of Natural History)
A ubiquitous ~62-Myr periodic fluctuation superimposed on general trends in fossil biodiversity. I. Documentation
56 pages. In press at Paleobiology. Submitted to conform with copyedited version
Paleobiology 37:92,2011
null
null
q-bio.PE astro-ph.EP astro-ph.GA physics.bio-ph physics.geo-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use Fourier analysis and related techniques to investigate the question of periodicities in fossil biodiversity. These techniques are able to identify cycles superimposed on the long-term trends of the Phanerozoic. We review prior results and analyze data previously reduced and published. Joint time-series analysi...
[ { "created": "Mon, 24 May 2010 18:25:31 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2010 17:05:17 GMT", "version": "v2" } ]
2010-11-26
[ [ "Melott", "Adrian L.", "", "University of Kansas" ], [ "Bambach", "Richard K.", "", "National Museum of Natural History" ] ]
We use Fourier analysis and related techniques to investigate the question of periodicities in fossil biodiversity. These techniques are able to identify cycles superimposed on the long-term trends of the Phanerozoic. We review prior results and analyze data previously reduced and published. Joint time-series analysis ...
1212.1135
Henry Tuckwell
Henry C. Tuckwell
Biophysical properties and computational modeling of calcium spikes in serotonergic neurons of the dorsal raphe nucleus
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Serotonergic neurons of the dorsal raphe nuclei, with their extensive innervation of nearly the whole brain have important modulatory effects on many cognitive and physiological processes. They play important roles in clinical depression and other psychiatric disorders. In order to quantify the effects of serotonergi...
[ { "created": "Wed, 5 Dec 2012 19:33:29 GMT", "version": "v1" } ]
2012-12-06
[ [ "Tuckwell", "Henry C.", "" ] ]
Serotonergic neurons of the dorsal raphe nuclei, with their extensive innervation of nearly the whole brain have important modulatory effects on many cognitive and physiological processes. They play important roles in clinical depression and other psychiatric disorders. In order to quantify the effects of serotonergic ...
q-bio/0612041
Etay Ziv
Etay Ziv, Ilya Nemenman, and Chris H. Wiggins
Optimal signal processing in small stochastic biochemical networks
41 pages 7 figures, 5 tables
null
10.1371/journal.pone.0001077
LA-UR-06-8411
q-bio.MN q-bio.QM
null
We quantify the influence of the topology of a transcriptional regulatory network on its ability to process environmental signals. By posing the problem in terms of information theory, we may do this without specifying the function performed by the network. Specifically, we study the maximum mutual information betwee...
[ { "created": "Thu, 21 Dec 2006 20:39:46 GMT", "version": "v1" } ]
2015-06-26
[ [ "Ziv", "Etay", "" ], [ "Nemenman", "Ilya", "" ], [ "Wiggins", "Chris H.", "" ] ]
We quantify the influence of the topology of a transcriptional regulatory network on its ability to process environmental signals. By posing the problem in terms of information theory, we may do this without specifying the function performed by the network. Specifically, we study the maximum mutual information between ...