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1511.07222
Sarah Beul
Sarah F. Beul, Helen Barbas, Claus C. Hilgetag
A predictive structural model of the primate connectome
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Anatomical connectivity imposes strong constraints on brain function, but there is no general agreement about principles that govern its organization. Based on extensive quantitative data we tested the power of three models to predict connections of the primate cerebral cortex: architectonic similarity (structural mo...
[ { "created": "Mon, 23 Nov 2015 13:48:23 GMT", "version": "v1" }, { "created": "Mon, 30 May 2016 12:03:05 GMT", "version": "v2" } ]
2016-05-31
[ [ "Beul", "Sarah F.", "" ], [ "Barbas", "Helen", "" ], [ "Hilgetag", "Claus C.", "" ] ]
Anatomical connectivity imposes strong constraints on brain function, but there is no general agreement about principles that govern its organization. Based on extensive quantitative data we tested the power of three models to predict connections of the primate cerebral cortex: architectonic similarity (structural mode...
2209.01034
Alireza Modirshanechi
Alireza Modirshanechi, Johanni Brea, Wulfram Gerstner
A taxonomy of surprise definitions
To appear in the Journal of Mathematical Psychology
Journal of Mathematical Psychology Volume 110, September 2022, 102712
10.1016/j.jmp.2022.102712
null
q-bio.NC stat.ML
http://creativecommons.org/licenses/by/4.0/
Surprising events trigger measurable brain activity and influence human behavior by affecting learning, memory, and decision-making. Currently there is, however, no consensus on the definition of surprise. Here we identify 18 mathematical definitions of surprise in a unifying framework. We first propose a technical c...
[ { "created": "Fri, 2 Sep 2022 13:07:15 GMT", "version": "v1" } ]
2022-09-26
[ [ "Modirshanechi", "Alireza", "" ], [ "Brea", "Johanni", "" ], [ "Gerstner", "Wulfram", "" ] ]
Surprising events trigger measurable brain activity and influence human behavior by affecting learning, memory, and decision-making. Currently there is, however, no consensus on the definition of surprise. Here we identify 18 mathematical definitions of surprise in a unifying framework. We first propose a technical cla...
1102.4026
Pau Ru\'e
Pau Ru\'e and Jordi Garcia-Ojalvo
Gene circuit designs for noisy excitable dynamics
9 pages, 10 figures
Mathematical Biosciences 231 (2011), pp. 90-97
10.1016/j.mbs.2011.02.013
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Certain cellular processes take the form of activity pulses that can be interpreted in terms of noise-driven excitable dynamics. Here we present an overview of different gene circuit architectures that exhibit excitable pulses of protein expression, when subject to molecular noise. Different types of excitable dynami...
[ { "created": "Sat, 19 Feb 2011 21:12:48 GMT", "version": "v1" } ]
2011-04-22
[ [ "Rué", "Pau", "" ], [ "Garcia-Ojalvo", "Jordi", "" ] ]
Certain cellular processes take the form of activity pulses that can be interpreted in terms of noise-driven excitable dynamics. Here we present an overview of different gene circuit architectures that exhibit excitable pulses of protein expression, when subject to molecular noise. Different types of excitable dynamics...
1611.04812
Krzysztof Gogolewski
K. Gogolewski, M. Startek, A. Gambin and A. Le Rouzic
Modelling the proliferation of transposable elements in populations under environmental stress
18 pages (wo references), 7 figures. The work was presented at RECOMB 2015 conference. To be published in Mobile DNA or Theoretical Population Biology
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we investigate the evolution of sexual diploid populations which are hosts for active TE families. Our purpose is to explore the relationship between the environmental change, that influences such population and activity of those TEs that are present in genomes.
[ { "created": "Tue, 15 Nov 2016 12:59:01 GMT", "version": "v1" } ]
2016-11-16
[ [ "Gogolewski", "K.", "" ], [ "Startek", "M.", "" ], [ "Gambin", "A.", "" ], [ "Rouzic", "A. Le", "" ] ]
In this article, we investigate the evolution of sexual diploid populations which are hosts for active TE families. Our purpose is to explore the relationship between the environmental change, that influences such population and activity of those TEs that are present in genomes.
1903.11627
Gabriel Birzu
Gabriel Birzu, Sakib Matin, Oskar Hallatschek and Kirill S. Korolev
Genetic drift in range expansions is very sensitive to density feedback in dispersal and growth
36 pages, 5 figures, and 1 table
null
null
null
q-bio.PE cond-mat.stat-mech physics.bio-ph
http://creativecommons.org/licenses/by/4.0/
Theory predicts rapid genetic drift during invasions, yet many expanding populations maintain high genetic diversity. We find that genetic drift is dramatically suppressed when dispersal rates increase with the population density because many more migrants from the diverse, high-density regions arrive at the expansio...
[ { "created": "Wed, 27 Mar 2019 18:07:14 GMT", "version": "v1" } ]
2019-03-29
[ [ "Birzu", "Gabriel", "" ], [ "Matin", "Sakib", "" ], [ "Hallatschek", "Oskar", "" ], [ "Korolev", "Kirill S.", "" ] ]
Theory predicts rapid genetic drift during invasions, yet many expanding populations maintain high genetic diversity. We find that genetic drift is dramatically suppressed when dispersal rates increase with the population density because many more migrants from the diverse, high-density regions arrive at the expansion ...
1709.03813
Muniba Faiza
Muniba Faiza, Tariq Abdullah, Prof. Yonghua Wang
Dithymoquinone as a novel inhibitor for 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) to prevent renal failure
27 pages, 4 figures, and 2 tables
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) is a major endogenous ligand found in the human serum albumin (HSA) of renal failure patients. It gets accumulated in the HSA and its concentration in sera of patients may reflect the chronicity of renal failure [1-4]. It is considered uremic toxin due to its d...
[ { "created": "Sun, 23 Jul 2017 10:53:26 GMT", "version": "v1" } ]
2017-09-13
[ [ "Faiza", "Muniba", "" ], [ "Abdullah", "Tariq", "" ], [ "Wang", "Prof. Yonghua", "" ] ]
3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) is a major endogenous ligand found in the human serum albumin (HSA) of renal failure patients. It gets accumulated in the HSA and its concentration in sera of patients may reflect the chronicity of renal failure [1-4]. It is considered uremic toxin due to its dam...
1811.08578
Bernard Marius 't Hart
Ahmed A. Mostafa, Bernard Marius 't Hart, Denise Y.P. Henriques
Motor Learning Without Moving: Hand Localization after Passive Training
null
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
An accurate estimate of limb position is necessary for movement. Where we localize our unseen hand after a reach depends on felt hand position, or proprioception, but often only predicted sensory consequences based on efference copies of motor commands are considered. Both signals should contribute, so here we use pa...
[ { "created": "Wed, 21 Nov 2018 02:58:11 GMT", "version": "v1" } ]
2018-11-22
[ [ "Mostafa", "Ahmed A.", "" ], [ "Hart", "Bernard Marius 't", "" ], [ "Henriques", "Denise Y. P.", "" ] ]
An accurate estimate of limb position is necessary for movement. Where we localize our unseen hand after a reach depends on felt hand position, or proprioception, but often only predicted sensory consequences based on efference copies of motor commands are considered. Both signals should contribute, so here we use pass...
1809.07550
Jens Wilting
Jens Wilting, Jonas Dehning, Joao Pinheiro Neto, Lucas Rudelt, Michael Wibral, Johannes Zierenberg, Viola Priesemann
Dynamic Adaptive Computation: Tuning network states to task requirements
6 pages + references, 2 figures
Frontiers in systems neuroscience 12 (2018)
10.3389/fnsys.2018.00055
null
q-bio.NC nlin.AO
http://creativecommons.org/licenses/by-sa/4.0/
Neural circuits are able to perform computations under very diverse conditions and requirements. The required computations impose clear constraints on their fine-tuning: a rapid and maximally informative response to stimuli in general requires decorrelated baseline neural activity. Such network dynamics is known as a...
[ { "created": "Thu, 20 Sep 2018 10:00:18 GMT", "version": "v1" } ]
2019-10-22
[ [ "Wilting", "Jens", "" ], [ "Dehning", "Jonas", "" ], [ "Neto", "Joao Pinheiro", "" ], [ "Rudelt", "Lucas", "" ], [ "Wibral", "Michael", "" ], [ "Zierenberg", "Johannes", "" ], [ "Priesemann", "Viola", "" ...
Neural circuits are able to perform computations under very diverse conditions and requirements. The required computations impose clear constraints on their fine-tuning: a rapid and maximally informative response to stimuli in general requires decorrelated baseline neural activity. Such network dynamics is known as asy...
2212.02229
Dominic Masters
Dominic Masters, Josef Dean, Kerstin Klaser, Zhiyi Li, Sam Maddrell-Mander, Adam Sanders, Hatem Helal, Deniz Beker, Ladislav Ramp\'a\v{s}ek and Dominique Beaini
GPS++: An Optimised Hybrid MPNN/Transformer for Molecular Property Prediction
null
null
null
null
q-bio.QM cs.LG
http://creativecommons.org/licenses/by-sa/4.0/
This technical report presents GPS++, the first-place solution to the Open Graph Benchmark Large-Scale Challenge (OGB-LSC 2022) for the PCQM4Mv2 molecular property prediction task. Our approach implements several key principles from the prior literature. At its core our GPS++ method is a hybrid MPNN/Transformer model...
[ { "created": "Fri, 18 Nov 2022 18:11:27 GMT", "version": "v1" }, { "created": "Tue, 6 Dec 2022 16:53:52 GMT", "version": "v2" } ]
2022-12-07
[ [ "Masters", "Dominic", "" ], [ "Dean", "Josef", "" ], [ "Klaser", "Kerstin", "" ], [ "Li", "Zhiyi", "" ], [ "Maddrell-Mander", "Sam", "" ], [ "Sanders", "Adam", "" ], [ "Helal", "Hatem", "" ], [ "Bek...
This technical report presents GPS++, the first-place solution to the Open Graph Benchmark Large-Scale Challenge (OGB-LSC 2022) for the PCQM4Mv2 molecular property prediction task. Our approach implements several key principles from the prior literature. At its core our GPS++ method is a hybrid MPNN/Transformer model t...
0706.0643
Dietrich Stauffer
Dietrich Stauffer, Christian Schulze, Dieter W. Heermann
Superdiffusion in a Model for Diffusion in a Molecularly Crowded Environment
8 pages including 4 figures
null
null
null
q-bio.SC
null
We present a model for diffusion in a molecularly crowded environment. The model consists of random barriers in percolation network. Random walks in the presence of slowly moving barriers show normal diffusion for long times, but anomalous diffusion at intermediate times. The effective exponents for square distance v...
[ { "created": "Tue, 5 Jun 2007 12:35:21 GMT", "version": "v1" } ]
2007-06-06
[ [ "Stauffer", "Dietrich", "" ], [ "Schulze", "Christian", "" ], [ "Heermann", "Dieter W.", "" ] ]
We present a model for diffusion in a molecularly crowded environment. The model consists of random barriers in percolation network. Random walks in the presence of slowly moving barriers show normal diffusion for long times, but anomalous diffusion at intermediate times. The effective exponents for square distance ver...
2201.07283
Ushasi Roy
Ushasi Roy, Tyler Collins, Mohit K. Jolly, and Parag Katira
Biophysical and Biochemical mechanisms underlying Collective Cell Migration in Cancer Metastasis
27 pages, 2 figures, book chapter
null
null
null
q-bio.CB physics.bio-ph q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multicellular collective migration is a ubiquitous strategy of cells to translocate spatially in diverse tissue environments to accomplish a wide variety of biological phenomena, viz. embryonic development, wound healing, and tumor progression. Diverse cellular functions and behaviors, for instance, cell protrusions,...
[ { "created": "Tue, 18 Jan 2022 19:36:07 GMT", "version": "v1" } ]
2022-01-20
[ [ "Roy", "Ushasi", "" ], [ "Collins", "Tyler", "" ], [ "Jolly", "Mohit K.", "" ], [ "Katira", "Parag", "" ] ]
Multicellular collective migration is a ubiquitous strategy of cells to translocate spatially in diverse tissue environments to accomplish a wide variety of biological phenomena, viz. embryonic development, wound healing, and tumor progression. Diverse cellular functions and behaviors, for instance, cell protrusions, a...
1903.07231
Nils Gehlenborg
Michael P Snyder, Shin Lin, Amanda Posgai, Mark Atkinson, Aviv Regev, Jennifer Rood, Orit Rosen, Leslie Gaffney, Anna Hupalowska, Rahul Satija, Nils Gehlenborg, Jay Shendure, Julia Laskin, Pehr Harbury, Nicholas A Nystrom, Ziv Bar-Joseph, Kun Zhang, Katy B\"orner, Yiing Lin, Richard Conroy, Dena Procaccini, Ana...
Mapping the Human Body at Cellular Resolution -- The NIH Common Fund Human BioMolecular Atlas Program
20 pages, 3 figures
null
10.1038/s41586-019-1629-x
null
q-bio.OT
http://creativecommons.org/licenses/by/4.0/
Transformative technologies are enabling the construction of three dimensional (3D) maps of tissues with unprecedented spatial and molecular resolution. Over the next seven years, the NIH Common Fund Human Biomolecular Atlas Program (HuBMAP) intends to develop a widely accessible framework for comprehensively mapping...
[ { "created": "Mon, 18 Mar 2019 02:18:13 GMT", "version": "v1" }, { "created": "Fri, 7 Jun 2019 15:06:19 GMT", "version": "v2" } ]
2019-11-04
[ [ "Snyder", "Michael P", "", "for the HuBMAP Consortium" ], [ "Lin", "Shin", "", "for the HuBMAP Consortium" ], [ "Posgai", "Amanda", "", "for the HuBMAP Consortium" ], [ "Atkinson", "Mark", "", "for the HuBMAP Consortium" ], [ "Reg...
Transformative technologies are enabling the construction of three dimensional (3D) maps of tissues with unprecedented spatial and molecular resolution. Over the next seven years, the NIH Common Fund Human Biomolecular Atlas Program (HuBMAP) intends to develop a widely accessible framework for comprehensively mapping t...
1511.06904
Ralph Brinks
Ralph Brinks
An identifiability problem in a state model for partly undetected chronic diseases
5 pages, 1 figure
null
null
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, we proposed an state model (compartment model) to describe the progression of a chronic disease with an pre-clinical (undiagnosed) state before clinical diagnosis. It is an open question, if a sequence of cross-sectional studies with mortality follow-up is sufficient to estimate the true incidence rate of t...
[ { "created": "Sat, 21 Nov 2015 17:30:22 GMT", "version": "v1" } ]
2015-11-24
[ [ "Brinks", "Ralph", "" ] ]
Recently, we proposed an state model (compartment model) to describe the progression of a chronic disease with an pre-clinical (undiagnosed) state before clinical diagnosis. It is an open question, if a sequence of cross-sectional studies with mortality follow-up is sufficient to estimate the true incidence rate of the...
1212.0356
Christian Kuehn
Christian Kuehn
Warning signs for wave speed transitions of noisy Fisher-KPP invasion fronts
14 pages, 8 figures; preprint - comments and suggestions welcome
Theoretical Ecology, Vol. 6, No. 3, pp. 295-308, 2013
10.1007/s12080-013-0189-1
null
q-bio.PE math.DS math.PR nlin.PS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Invasion waves are a fundamental building block of theoretical ecology. In this study we aim to take the first steps to link propagation failure and fast acceleration of traveling waves to critical transitions (or tipping points). The approach is based upon a detailed numerical study of various versions of the Fisher...
[ { "created": "Mon, 3 Dec 2012 11:43:03 GMT", "version": "v1" } ]
2015-03-06
[ [ "Kuehn", "Christian", "" ] ]
Invasion waves are a fundamental building block of theoretical ecology. In this study we aim to take the first steps to link propagation failure and fast acceleration of traveling waves to critical transitions (or tipping points). The approach is based upon a detailed numerical study of various versions of the Fisher-K...
0807.1898
Marco Cosentino Lagomarsino
M. Cosentino Lagomarsino, A.L. Sellerio, P.D. Heijning, B. Bassetti
Universal Features in the Genome-level Evolution of Protein Domains
null
null
null
null
q-bio.GN q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein domains are found on genomes with notable statistical distributions, which bear a high degree of similarity. Previous work has shown how these distributions can be accounted for by simple models, where the main ingredients are probabilities of duplication, innovation, and loss of domains. However, no one so f...
[ { "created": "Fri, 11 Jul 2008 17:36:26 GMT", "version": "v1" } ]
2008-07-14
[ [ "Lagomarsino", "M. Cosentino", "" ], [ "Sellerio", "A. L.", "" ], [ "Heijning", "P. D.", "" ], [ "Bassetti", "B.", "" ] ]
Protein domains are found on genomes with notable statistical distributions, which bear a high degree of similarity. Previous work has shown how these distributions can be accounted for by simple models, where the main ingredients are probabilities of duplication, innovation, and loss of domains. However, no one so far...
1910.08352
Michaela Hamm
Michaela Hamm and Barbara Drossel
The concerted emergence of well-known spatial and temporal ecological patterns in an evolutionary food web model in space
null
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by-nc-sa/4.0/
Ecological systems show a variety of characteristic patterns of biodiversity in space and time. It is a challenge for theory to find models that can reproduce and explain the observed patterns. Since the advent of island biogeography these models revolve around speciation, dispersal, and extinction, but they usually ...
[ { "created": "Fri, 18 Oct 2019 11:50:16 GMT", "version": "v1" } ]
2019-10-21
[ [ "Hamm", "Michaela", "" ], [ "Drossel", "Barbara", "" ] ]
Ecological systems show a variety of characteristic patterns of biodiversity in space and time. It is a challenge for theory to find models that can reproduce and explain the observed patterns. Since the advent of island biogeography these models revolve around speciation, dispersal, and extinction, but they usually ne...
2211.06692
Federico William Pasini
Federico W. Pasini, Alexandra N. Busch, J\'an Min\'a\v{c}, Krishnan Padmanabhan, Lyle Muller
An algebraic approach to spike-time neural codes in the hippocampus
11 pages, 5 figures
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Although temporal coding through spike-time patterns has long been of interest in neuroscience, the specific structures that could be useful for spike-time codes remain highly unclear. Here, we introduce a new analytical approach, using techniques from discrete mathematics, to study spike-time codes. We focus on the ...
[ { "created": "Sat, 12 Nov 2022 15:45:18 GMT", "version": "v1" } ]
2022-11-15
[ [ "Pasini", "Federico W.", "" ], [ "Busch", "Alexandra N.", "" ], [ "Mináč", "Ján", "" ], [ "Padmanabhan", "Krishnan", "" ], [ "Muller", "Lyle", "" ] ]
Although temporal coding through spike-time patterns has long been of interest in neuroscience, the specific structures that could be useful for spike-time codes remain highly unclear. Here, we introduce a new analytical approach, using techniques from discrete mathematics, to study spike-time codes. We focus on the ph...
2302.12714
Maurice HT Ling
Zhu En Chay, Chin How Lee, Kun Cheng Lee, Jack SH Oon, Maurice HT Ling
Russel and Rao Coefficient is a Suitable Substitute for Dice Coefficient in Studying Restriction Mapped Genetic Distances of Escherichia coli
null
iConcept Journal of Computational and Mathematical Biology 1:1 (2010)
null
null
q-bio.GN
http://creativecommons.org/licenses/by-sa/4.0/
Escherichia coli is one of many bacterial inhabitants found in human intestines and any adaptation as a result of mutations may affect its host. A commonly used technique employed to study these mutations is Restriction Fragment Length Polymorphism (RFLP) and is proceeded with a suitable distance coefficient to quant...
[ { "created": "Sun, 19 Feb 2023 02:39:00 GMT", "version": "v1" } ]
2023-02-27
[ [ "Chay", "Zhu En", "" ], [ "Lee", "Chin How", "" ], [ "Lee", "Kun Cheng", "" ], [ "Oon", "Jack SH", "" ], [ "Ling", "Maurice HT", "" ] ]
Escherichia coli is one of many bacterial inhabitants found in human intestines and any adaptation as a result of mutations may affect its host. A commonly used technique employed to study these mutations is Restriction Fragment Length Polymorphism (RFLP) and is proceeded with a suitable distance coefficient to quantif...
2307.02624
James Brunner
James D. Brunner and Laverne A. Gallegos-Graves and Marie E. Kroeger
Inferring microbial interactions with their environment from genomic and metagenomic data
27 pages, 10 figure, 4 tables
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Microbial communities assemble through a complex set of interactions between microbes and their environment, and the resulting metabolic impact on the host ecosystem can be profound. Microbial activity is known to impact human health, plant growth, water quality, and soil carbon storage which has lead to the developm...
[ { "created": "Wed, 5 Jul 2023 19:54:30 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2023 15:27:04 GMT", "version": "v2" } ]
2023-11-09
[ [ "Brunner", "James D.", "" ], [ "Gallegos-Graves", "Laverne A.", "" ], [ "Kroeger", "Marie E.", "" ] ]
Microbial communities assemble through a complex set of interactions between microbes and their environment, and the resulting metabolic impact on the host ecosystem can be profound. Microbial activity is known to impact human health, plant growth, water quality, and soil carbon storage which has lead to the developmen...
2403.15092
Rub\'en Calvo Ib\'a\~nez
Rub\'en Calvo, Carles Martorell, Guillermo B. Morales, Serena Di Santo and Miguel A. Mu\~noz
Frequency-dependent covariance reveals critical spatio-temporal patterns of synchronized activity in the human brain
null
null
null
null
q-bio.NC cond-mat.dis-nn cond-mat.stat-mech physics.bio-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
Recent analyses combining advanced theoretical techniques and high-quality data from thousands of simultaneously recorded neurons provide strong support for the hypothesis that neural dynamics operate near the edge of instability across regions in the brain. However, these analyses, as well as related studies, often ...
[ { "created": "Fri, 22 Mar 2024 10:21:28 GMT", "version": "v1" } ]
2024-03-25
[ [ "Calvo", "Rubén", "" ], [ "Martorell", "Carles", "" ], [ "Morales", "Guillermo B.", "" ], [ "Di Santo", "Serena", "" ], [ "Muñoz", "Miguel A.", "" ] ]
Recent analyses combining advanced theoretical techniques and high-quality data from thousands of simultaneously recorded neurons provide strong support for the hypothesis that neural dynamics operate near the edge of instability across regions in the brain. However, these analyses, as well as related studies, often fa...
2105.10344
Muhammad Usman Sanwal
Usman Sanwal, Thai Son Hoang, Luigia Petre and Ion Petre
Towards Scalable Modeling of Biology in Event-B
null
null
null
null
q-bio.MN cs.CL
http://creativecommons.org/licenses/by/4.0/
Biology offers many examples of large-scale, complex, concurrent systems: many processes take place in parallel, compete on resources and influence each other's behavior. The scalable modeling of biological systems continues to be a very active field of research. In this paper we introduce a new approach based on Eve...
[ { "created": "Thu, 20 May 2021 13:37:06 GMT", "version": "v1" } ]
2021-05-24
[ [ "Sanwal", "Usman", "" ], [ "Hoang", "Thai Son", "" ], [ "Petre", "Luigia", "" ], [ "Petre", "Ion", "" ] ]
Biology offers many examples of large-scale, complex, concurrent systems: many processes take place in parallel, compete on resources and influence each other's behavior. The scalable modeling of biological systems continues to be a very active field of research. In this paper we introduce a new approach based on Event...
2309.03911
Mamata Das
Mamata Das, Selvakumar K., P.J.A. Alphonse
Identifying Essential Hub Genes and Protein Complexes in Malaria GO Data using Semantic Similarity Measures
23 pages, 15 figures
null
null
null
q-bio.MN
http://creativecommons.org/licenses/by/4.0/
Hub genes play an essential role in biological systems because of their interaction with other genes. A vocabulary used in bioinformatics called Gene Ontology (GO) describes how genes and proteins operate. This flexible ontology illustrates the operation of molecular, biological, and cellular processes (Pmol, Pbio, P...
[ { "created": "Wed, 9 Aug 2023 05:10:41 GMT", "version": "v1" } ]
2023-09-11
[ [ "Das", "Mamata", "" ], [ "K.", "Selvakumar", "" ], [ "Alphonse", "P. J. A.", "" ] ]
Hub genes play an essential role in biological systems because of their interaction with other genes. A vocabulary used in bioinformatics called Gene Ontology (GO) describes how genes and proteins operate. This flexible ontology illustrates the operation of molecular, biological, and cellular processes (Pmol, Pbio, Pce...
2104.03558
Govind Kaigala
Iago Pereiro, Anna Fomitcheva-Khartchenko, Govind V. Kaigala
Shake It or Shrink It: Mass Transport and Kinetics in Surface Bioassays Using Agitation and Microfluidics
12 pages
null
null
null
q-bio.CB q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Surface assays, such as ELISA and immunofluorescence, are nothing short of ubiquitous in biotechnology and medical diagnostics today. The development and optimization of these assays generally focuses on three aspects: immobilization chemistry, ligand-receptor interaction and concentrations of ligands, buffers and sa...
[ { "created": "Thu, 8 Apr 2021 07:19:43 GMT", "version": "v1" } ]
2021-04-09
[ [ "Pereiro", "Iago", "" ], [ "Fomitcheva-Khartchenko", "Anna", "" ], [ "Kaigala", "Govind V.", "" ] ]
Surface assays, such as ELISA and immunofluorescence, are nothing short of ubiquitous in biotechnology and medical diagnostics today. The development and optimization of these assays generally focuses on three aspects: immobilization chemistry, ligand-receptor interaction and concentrations of ligands, buffers and samp...
1007.2070
Indrani Bose
Sayantari Ghosh, Kamakshi Sureka, Bhaswar Ghosh, Indrani Bose, Joyoti Basu and Manikuntala Kundu
Phenotypic Heterogeneity in Mycobacterial Stringent Response
24 pages,8 figures, supplementary information and 5 supplementary figures
BMC Systems Biology 2011, 5:18
10.1186/1752-0509-5-18
null
q-bio.SC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A common survival strategy of microorganisms subjected to stress involves the generation of phenotypic heterogeneity in the isogenic microbial population enabling a subset of the population to survive under stress. In a recent study, a mycobacterial population of M. smegmatis was shown to develop phenotypic heterogen...
[ { "created": "Tue, 13 Jul 2010 10:18:02 GMT", "version": "v1" }, { "created": "Thu, 3 Feb 2011 09:13:18 GMT", "version": "v2" } ]
2011-02-04
[ [ "Ghosh", "Sayantari", "" ], [ "Sureka", "Kamakshi", "" ], [ "Ghosh", "Bhaswar", "" ], [ "Bose", "Indrani", "" ], [ "Basu", "Joyoti", "" ], [ "Kundu", "Manikuntala", "" ] ]
A common survival strategy of microorganisms subjected to stress involves the generation of phenotypic heterogeneity in the isogenic microbial population enabling a subset of the population to survive under stress. In a recent study, a mycobacterial population of M. smegmatis was shown to develop phenotypic heterogenei...
1104.2532
Sebastiano Stramaglia
Sebastiano Stramaglia, Daniele Marinazzo, Mario Pellicoro, and Marina de Tommaso
Abnormal effective connectivity in migraine with aura under photic stimulation
4 pages, 6 figures
null
null
null
q-bio.NC cond-mat.dis-nn physics.med-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Migraine patients with aura show a peculiar pattern of visual reactivity compared with those of migraine patients without aura: an increased effective connectivity, connected to a reduced synchronization among EEG channels, for frequencies in the beta band. The effective connectivity is evaluated in terms of the Gran...
[ { "created": "Wed, 13 Apr 2011 15:51:15 GMT", "version": "v1" }, { "created": "Wed, 11 May 2011 18:19:53 GMT", "version": "v2" } ]
2011-05-12
[ [ "Stramaglia", "Sebastiano", "" ], [ "Marinazzo", "Daniele", "" ], [ "Pellicoro", "Mario", "" ], [ "de Tommaso", "Marina", "" ] ]
Migraine patients with aura show a peculiar pattern of visual reactivity compared with those of migraine patients without aura: an increased effective connectivity, connected to a reduced synchronization among EEG channels, for frequencies in the beta band. The effective connectivity is evaluated in terms of the Grange...
q-bio/0608037
Yong Chen
Shao-Meng Qin, Yong Chen and Pan Zhang
Network growth approach to macroevolution
16 pages, 7 figures, published version
New J. Phys. 9 (2007) 220
10.1088/1367-2630/9/7/220
null
q-bio.PE
null
We propose a novel network growth model coupled with the competition interaction to simulate macroevolution. Our work shows that the competition plays an important role in macroevolution and it is more rational to describe the interaction between species by network structures. Our model presents a complete picture of...
[ { "created": "Fri, 25 Aug 2006 08:40:47 GMT", "version": "v1" }, { "created": "Wed, 1 Nov 2006 10:32:10 GMT", "version": "v2" }, { "created": "Sat, 10 Mar 2007 03:41:36 GMT", "version": "v3" }, { "created": "Wed, 11 Jul 2007 05:42:07 GMT", "version": "v4" } ]
2007-07-11
[ [ "Qin", "Shao-Meng", "" ], [ "Chen", "Yong", "" ], [ "Zhang", "Pan", "" ] ]
We propose a novel network growth model coupled with the competition interaction to simulate macroevolution. Our work shows that the competition plays an important role in macroevolution and it is more rational to describe the interaction between species by network structures. Our model presents a complete picture of t...
1110.2727
Irina Manina
I.V. Manina, N.M. Peretolchina, N.S. Saprikina, A.M. Kozlov, I.N. Mikhaylova, K.I. Jordanya A.Y. Barishnikov
Prospects of using Antagonist Histamine H2-Receptor (Cimetidinum) as Adjuvant for Melanoma Biotherapy Treatment
14 pages, 5 figures; ISSN 0236-297X. International Journal of Immunopathology, Allergology, Infectology. 2010, #4: P. 42-51
International Journal of Immunopathology, Allergology, Infectology 2010, #4: P. 42-51
null
null
q-bio.TO q-bio.CB
http://creativecommons.org/licenses/publicdomain/
Improvement of anti-tumor biotherapy effectiveness by modification of immune response with histamine H2 receptor Cimetidinum (CM) was studied using the experimental murine model of B16 F10 melanoma in vivo. It is shown that skin melanoma biotherapy by antitumor whole-cell GM-CSF-producing vaccine with the addition of...
[ { "created": "Wed, 12 Oct 2011 18:17:47 GMT", "version": "v1" } ]
2011-10-13
[ [ "Manina", "I. V.", "" ], [ "Peretolchina", "N. M.", "" ], [ "Saprikina", "N. S.", "" ], [ "Kozlov", "A. M.", "" ], [ "Mikhaylova", "I. N.", "" ], [ "Barishnikov", "K. I. Jordanya A. Y.", "" ] ]
Improvement of anti-tumor biotherapy effectiveness by modification of immune response with histamine H2 receptor Cimetidinum (CM) was studied using the experimental murine model of B16 F10 melanoma in vivo. It is shown that skin melanoma biotherapy by antitumor whole-cell GM-CSF-producing vaccine with the addition of C...
2001.11582
Jeff Mohl
Jeff T. Mohl, Valeria C. Caruso, Surya T. Tokdar, Jennifer M. Groh
Sensitivity and specificity of a Bayesian single trial analysis for time varying neural signals
Accepted for publication in Neurons, Behavior, Data analysis, and Theory
Neurons, Behavior, Data Analysis, and Theory, 2020
10.1101/690958
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
We recently reported the existence of fluctuations in neural signals that may permit neurons to code multiple simultaneous stimuli sequentially across time. This required deploying a novel statistical approach to permit investigation of neural activity at the scale of individual trials. Here we present tests using sy...
[ { "created": "Thu, 30 Jan 2020 21:59:06 GMT", "version": "v1" } ]
2020-02-03
[ [ "Mohl", "Jeff T.", "" ], [ "Caruso", "Valeria C.", "" ], [ "Tokdar", "Surya T.", "" ], [ "Groh", "Jennifer M.", "" ] ]
We recently reported the existence of fluctuations in neural signals that may permit neurons to code multiple simultaneous stimuli sequentially across time. This required deploying a novel statistical approach to permit investigation of neural activity at the scale of individual trials. Here we present tests using synt...
2401.04155
Jiajia Liu
Jiajia Liu, Mengyuan Yang, Yankai Yu, Haixia Xu, Kang Li and Xiaobo Zhou
Large language models in bioinformatics: applications and perspectives
7 figures
null
null
null
q-bio.QM cs.CL
http://creativecommons.org/licenses/by/4.0/
Large language models (LLMs) are a class of artificial intelligence models based on deep learning, which have great performance in various tasks, especially in natural language processing (NLP). Large language models typically consist of artificial neural networks with numerous parameters, trained on large amounts of...
[ { "created": "Mon, 8 Jan 2024 17:26:59 GMT", "version": "v1" } ]
2024-01-10
[ [ "Liu", "Jiajia", "" ], [ "Yang", "Mengyuan", "" ], [ "Yu", "Yankai", "" ], [ "Xu", "Haixia", "" ], [ "Li", "Kang", "" ], [ "Zhou", "Xiaobo", "" ] ]
Large language models (LLMs) are a class of artificial intelligence models based on deep learning, which have great performance in various tasks, especially in natural language processing (NLP). Large language models typically consist of artificial neural networks with numerous parameters, trained on large amounts of u...
1110.3317
David Albers
DJ Albers, George Hripcsak, and Michael Schmidt
Population physiology: leveraging population scale (EHR) data to understand human endocrine dynamics
null
null
10.1371/journal.pone.0048058
null
q-bio.QM nlin.CG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Studying physiology over a broad population for long periods of time is difficult primarily because collecting human physiologic data is intrusive, dangerous, and expensive. Electronic health record (EHR) data promise to support the development and testing of mechanistic physiologic models on diverse population, but ...
[ { "created": "Fri, 14 Oct 2011 17:52:50 GMT", "version": "v1" } ]
2015-05-30
[ [ "Albers", "DJ", "" ], [ "Hripcsak", "George", "" ], [ "Schmidt", "Michael", "" ] ]
Studying physiology over a broad population for long periods of time is difficult primarily because collecting human physiologic data is intrusive, dangerous, and expensive. Electronic health record (EHR) data promise to support the development and testing of mechanistic physiologic models on diverse population, but li...
2006.03735
Caroline Uhler
Anastasiya Belyaeva, Louis Cammarata, Adityanarayanan Radhakrishnan, Chandler Squires, Karren Dai Yang, G.V. Shivashankar, Caroline Uhler
Causal Network Models of SARS-CoV-2 Expression and Aging to Identify Candidates for Drug Repurposing
null
null
10.1038/s41467-021-21056-z
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Given the severity of the SARS-CoV-2 pandemic, a major challenge is to rapidly repurpose existing approved drugs for clinical interventions. While a number of data-driven and experimental approaches have been suggested in the context of drug repurposing, a platform that systematically integrates available transcripto...
[ { "created": "Fri, 5 Jun 2020 23:16:44 GMT", "version": "v1" } ]
2021-04-28
[ [ "Belyaeva", "Anastasiya", "" ], [ "Cammarata", "Louis", "" ], [ "Radhakrishnan", "Adityanarayanan", "" ], [ "Squires", "Chandler", "" ], [ "Yang", "Karren Dai", "" ], [ "Shivashankar", "G. V.", "" ], [ "Uhler", ...
Given the severity of the SARS-CoV-2 pandemic, a major challenge is to rapidly repurpose existing approved drugs for clinical interventions. While a number of data-driven and experimental approaches have been suggested in the context of drug repurposing, a platform that systematically integrates available transcriptomi...
2012.08580
Yuan Luo
Yuan Luo, Chengsheng Mao
PANTHER: Pathway Augmented Nonnegative Tensor factorization for HighER-order feature learning
Accepted by 35th AAAI Conference on Artificial Intelligence (AAAI 2021)
null
null
null
q-bio.QM cs.AI cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Genetic pathways usually encode molecular mechanisms that can inform targeted interventions. It is often challenging for existing machine learning approaches to jointly model genetic pathways (higher-order features) and variants (atomic features), and present to clinicians interpretable models. In order to build more...
[ { "created": "Tue, 15 Dec 2020 19:39:55 GMT", "version": "v1" } ]
2021-11-19
[ [ "Luo", "Yuan", "" ], [ "Mao", "Chengsheng", "" ] ]
Genetic pathways usually encode molecular mechanisms that can inform targeted interventions. It is often challenging for existing machine learning approaches to jointly model genetic pathways (higher-order features) and variants (atomic features), and present to clinicians interpretable models. In order to build more a...
1307.7658
Daniel Larremore
Daniel B. Larremore, Woodrow L. Shew, Edward Ott, Francesco Sorrentino, Juan G. Restrepo
Inhibition causes ceaseless dynamics in networks of excitable nodes
11 pages, 6 figures
Phys. Rev. Lett. 112, 138103 (2014)
10.1103/PhysRevLett.112.138103
null
q-bio.NC cond-mat.dis-nn
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The collective dynamics of a network of excitable nodes changes dramatically when inhibitory nodes are introduced. We consider inhibitory nodes which may be activated just like excitatory nodes but, upon activating, decrease the probability of activation of network neighbors. We show that, although the direct effect ...
[ { "created": "Mon, 29 Jul 2013 17:36:18 GMT", "version": "v1" }, { "created": "Fri, 20 Dec 2013 20:49:45 GMT", "version": "v2" }, { "created": "Fri, 21 Feb 2014 17:20:05 GMT", "version": "v3" } ]
2014-04-03
[ [ "Larremore", "Daniel B.", "" ], [ "Shew", "Woodrow L.", "" ], [ "Ott", "Edward", "" ], [ "Sorrentino", "Francesco", "" ], [ "Restrepo", "Juan G.", "" ] ]
The collective dynamics of a network of excitable nodes changes dramatically when inhibitory nodes are introduced. We consider inhibitory nodes which may be activated just like excitatory nodes but, upon activating, decrease the probability of activation of network neighbors. We show that, although the direct effect of...
2406.19041
Manuel Morante
Manuel Morante, Kristian Fr{\o}lich and Naveed ur Rehman
Multiscale Functional Connectivity: Exploring the brain functional connectivity at different timescales
33 pages, 7 figures and 3 tables
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-sa/4.0/
Human brains exhibit highly organized multiscale neurophysiological dynamics. Understanding those dynamic changes and the neuronal networks involved is critical for understanding how the brain functions in health and disease. Functional Magnetic Resonance Imaging (fMRI) is a prevalent neuroimaging technique for study...
[ { "created": "Thu, 27 Jun 2024 09:48:05 GMT", "version": "v1" } ]
2024-06-28
[ [ "Morante", "Manuel", "" ], [ "Frølich", "Kristian", "" ], [ "Rehman", "Naveed ur", "" ] ]
Human brains exhibit highly organized multiscale neurophysiological dynamics. Understanding those dynamic changes and the neuronal networks involved is critical for understanding how the brain functions in health and disease. Functional Magnetic Resonance Imaging (fMRI) is a prevalent neuroimaging technique for studyin...
1304.1262
Conrad Sanderson
Arnold Wiliem, Yongkang Wong, Conrad Sanderson, Peter Hobson, Shaokang Chen, Brian C. Lovell
Classification of Human Epithelial Type 2 Cell Indirect Immunofluoresence Images via Codebook Based Descriptors
null
IEEE Workshop on Applications of Computer Vision (WACV), pp. 95-102, 2013
10.1109/WACV.2013.6475005
null
q-bio.CB cs.CV q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Anti-Nuclear Antibody (ANA) clinical pathology test is commonly used to identify the existence of various diseases. A hallmark method for identifying the presence of ANAs is the Indirect Immunofluorescence method on Human Epithelial (HEp-2) cells, due to its high sensitivity and the large range of antigens that c...
[ { "created": "Thu, 4 Apr 2013 07:51:32 GMT", "version": "v1" } ]
2013-04-05
[ [ "Wiliem", "Arnold", "" ], [ "Wong", "Yongkang", "" ], [ "Sanderson", "Conrad", "" ], [ "Hobson", "Peter", "" ], [ "Chen", "Shaokang", "" ], [ "Lovell", "Brian C.", "" ] ]
The Anti-Nuclear Antibody (ANA) clinical pathology test is commonly used to identify the existence of various diseases. A hallmark method for identifying the presence of ANAs is the Indirect Immunofluorescence method on Human Epithelial (HEp-2) cells, due to its high sensitivity and the large range of antigens that can...
1704.02577
Myrl Marmarelis
Myrl G. Marmarelis
Efficient and Robust Polylinear Analysis of Noisy Time Series
6 pages, 9 figures
null
null
null
q-bio.QM stat.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A method is proposed to generate an optimal fit of a number of connected linear trend segments onto time-series data. To be able to efficiently handle many lines, the method employs a stochastic search procedure to determine optimal transition point locations. Traditional methods use exhaustive grid searches, which s...
[ { "created": "Sun, 9 Apr 2017 09:15:15 GMT", "version": "v1" } ]
2017-04-11
[ [ "Marmarelis", "Myrl G.", "" ] ]
A method is proposed to generate an optimal fit of a number of connected linear trend segments onto time-series data. To be able to efficiently handle many lines, the method employs a stochastic search procedure to determine optimal transition point locations. Traditional methods use exhaustive grid searches, which sev...
1906.07794
Milad Mostavi
Milad Mostavi, Yu-Chiao Chiu, Yufei Huang, Yidong Chen
Convolutional neural network models for cancer type prediction based on gene expression
34 pages, 5 figures, This paper was presented at ICIBM June, 2019 at Ohio Columbus, and will be published in BMC Genomics journal. Keywords: Deep Learning; Convolutional Neural Networks, The Cancer Genome Atlas; Cancer type prediction; Cancer gene markers; Breast cancer subtype prediction
null
null
null
q-bio.GN cs.LG q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Background Precise prediction of cancer types is vital for cancer diagnosis and therapy. Important cancer marker genes can be inferred through predictive model. Several studies have attempted to build machine learning models for this task however none has taken into consideration the effects of tissue of origin that ...
[ { "created": "Tue, 18 Jun 2019 20:27:35 GMT", "version": "v1" } ]
2019-06-20
[ [ "Mostavi", "Milad", "" ], [ "Chiu", "Yu-Chiao", "" ], [ "Huang", "Yufei", "" ], [ "Chen", "Yidong", "" ] ]
Background Precise prediction of cancer types is vital for cancer diagnosis and therapy. Important cancer marker genes can be inferred through predictive model. Several studies have attempted to build machine learning models for this task however none has taken into consideration the effects of tissue of origin that ca...
1501.02278
Jose H H Grisi-Filho Prof Dr
Jos\'e Henrique Hildebrand Grisi-Filho, Marcos Amaku
Caracteriza\c{c}\~ao de circuitos pecu\'arios com base em redes de movimenta\c{c}\~ao de animais
46 pages, PhD Thesis, Portuguese
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by/3.0/
A network is a set of nodes that are linked together by a set of edges. Networks can represent any set of objects that have relations among themselves. Communities are sets of nodes that are related in an important way, probably sharing common properties and/or playing similar roles within a network. When network ana...
[ { "created": "Fri, 9 Jan 2015 21:24:48 GMT", "version": "v1" } ]
2015-01-13
[ [ "Grisi-Filho", "José Henrique Hildebrand", "" ], [ "Amaku", "Marcos", "" ] ]
A network is a set of nodes that are linked together by a set of edges. Networks can represent any set of objects that have relations among themselves. Communities are sets of nodes that are related in an important way, probably sharing common properties and/or playing similar roles within a network. When network analy...
0909.4158
Thierry Rabilloud
Thierry Rabilloud (BBSI), Ali R Vaezzadeh, Noelle Potier, C\'ecile Lelong (BBSI), Emmanuelle Leize-Wagner, Mireille Chevallet (BBSI)
Power and limitations of electrophoretic separations in proteomics strategies
null
Mass Spectrometry Reviews 28, 5 (2009) 816-43
10.1002/mas.20204
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry. These techniques, dealing with proteins or peptides, can rely on chromatography or electrophoresis. In this review, th...
[ { "created": "Wed, 23 Sep 2009 09:29:36 GMT", "version": "v1" } ]
2009-09-24
[ [ "Rabilloud", "Thierry", "", "BBSI" ], [ "Vaezzadeh", "Ali R", "", "BBSI" ], [ "Potier", "Noelle", "", "BBSI" ], [ "Lelong", "Cécile", "", "BBSI" ], [ "Leize-Wagner", "Emmanuelle", "", "BBSI" ], [ "Chevallet", ...
Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry. These techniques, dealing with proteins or peptides, can rely on chromatography or electrophoresis. In this review, the ...
1605.03076
Bernhard Mehlig
M. Rafajlovic, A. Emanuelsson, K. Johannesson, R. K. Butlin, B. Mehlig
A universal mechanism generating clusters of differentiated loci during divergence-with-migration
32 pages, 4 figures, 1 table, supplementary material
Evolution 70 (2016) 1609
10.1111/evo.12957
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Genome-wide patterns of genetic divergence reveal mechanisms of adaptation under gene flow. Empirical data show that divergence is mostly concentrated in narrow genomic regions. This pattern may arise because differentiated loci protect nearby mutations from gene flow, but recent theory suggests this mechanism is ins...
[ { "created": "Tue, 10 May 2016 16:01:59 GMT", "version": "v1" } ]
2017-02-21
[ [ "Rafajlovic", "M.", "" ], [ "Emanuelsson", "A.", "" ], [ "Johannesson", "K.", "" ], [ "Butlin", "R. K.", "" ], [ "Mehlig", "B.", "" ] ]
Genome-wide patterns of genetic divergence reveal mechanisms of adaptation under gene flow. Empirical data show that divergence is mostly concentrated in narrow genomic regions. This pattern may arise because differentiated loci protect nearby mutations from gene flow, but recent theory suggests this mechanism is insuf...
1807.00061
Elisenda Feliu
Meritxell S\'aez, Carsten Wiuf, Elisenda Feliu
Nonnegative linear elimination for chemical reaction networks
null
null
null
null
q-bio.MN math.DS physics.chem-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider linear elimination of variables in steady state equations of a chemical reaction network. Particular subsets of variables corresponding to sets of so-called reactant-noninteracting species, are introduced. The steady state equations for the variables in such a set, taken together with potential linear con...
[ { "created": "Fri, 29 Jun 2018 20:34:59 GMT", "version": "v1" } ]
2018-07-03
[ [ "Sáez", "Meritxell", "" ], [ "Wiuf", "Carsten", "" ], [ "Feliu", "Elisenda", "" ] ]
We consider linear elimination of variables in steady state equations of a chemical reaction network. Particular subsets of variables corresponding to sets of so-called reactant-noninteracting species, are introduced. The steady state equations for the variables in such a set, taken together with potential linear conse...
1612.03760
Daniele Marinazzo
Javier Rasero, Mario Pellicoro, Leonardo Angelini, Jesus M. Cortes, Daniele Marinazzo, and Sebastiano Stramaglia
Consensus clustering approach to group brain connectivity matrices
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A novel approach rooted on the notion of consensus clustering, a strategy developed for community detection in complex networks, is proposed to cope with the heterogeneity that characterizes connectivity matrices in health and disease. The method can be summarized as follows: (i) define, for each node, a distance m...
[ { "created": "Mon, 12 Dec 2016 16:10:05 GMT", "version": "v1" }, { "created": "Mon, 8 May 2017 12:56:16 GMT", "version": "v2" } ]
2017-05-09
[ [ "Rasero", "Javier", "" ], [ "Pellicoro", "Mario", "" ], [ "Angelini", "Leonardo", "" ], [ "Cortes", "Jesus M.", "" ], [ "Marinazzo", "Daniele", "" ], [ "Stramaglia", "Sebastiano", "" ] ]
A novel approach rooted on the notion of consensus clustering, a strategy developed for community detection in complex networks, is proposed to cope with the heterogeneity that characterizes connectivity matrices in health and disease. The method can be summarized as follows: (i) define, for each node, a distance matri...
2209.03324
Casey Barkan
Casey O. Barkan and Robijn F. Bruinsma
Geometric Signatures of Switching Behavior in Mechanobiology
6 pages, 3 figures
null
10.1016/j.bpj.2022.11.1173
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The proteins involved in cells' mechanobiological processes have evolved specialized and surprising responses to applied forces. Biochemical transformations that show catch-to-slip switching and force-induced pathway switching serve important functions in cell adhesion, mechano-sensing and signaling, and protein fold...
[ { "created": "Wed, 7 Sep 2022 17:33:04 GMT", "version": "v1" }, { "created": "Mon, 26 Sep 2022 09:53:23 GMT", "version": "v2" }, { "created": "Sun, 26 Feb 2023 18:48:01 GMT", "version": "v3" } ]
2023-07-19
[ [ "Barkan", "Casey O.", "" ], [ "Bruinsma", "Robijn F.", "" ] ]
The proteins involved in cells' mechanobiological processes have evolved specialized and surprising responses to applied forces. Biochemical transformations that show catch-to-slip switching and force-induced pathway switching serve important functions in cell adhesion, mechano-sensing and signaling, and protein foldin...
0909.2985
Jerome Vanclay
Jerome K. Vanclay, Peter J. Sands
Calibrating the self-thinning frontier
Typos corrected, missing reference added
Forest Ecology and Management 259 (2009) 81-85
10.1016/j.foreco.2009.09.045
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Calibration of the self-thinning frontier in even-aged monocultures is hampered by scarce data and by subjective decisions about the proximity of data to the frontier. We present a simple model that applies to observations of the full trajectory of stand mean diameter across a range of densities not close to the fron...
[ { "created": "Wed, 16 Sep 2009 11:33:42 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2009 10:19:54 GMT", "version": "v2" } ]
2009-11-17
[ [ "Vanclay", "Jerome K.", "" ], [ "Sands", "Peter J.", "" ] ]
Calibration of the self-thinning frontier in even-aged monocultures is hampered by scarce data and by subjective decisions about the proximity of data to the frontier. We present a simple model that applies to observations of the full trajectory of stand mean diameter across a range of densities not close to the fronti...
1702.07649
Quinton Skilling
Quinton M Skilling, Daniel Maruyama, Nicolette Ognjanovski, Sara J Aton, and Michal Zochowski
Criticality, stability, competition, and consolidation of new representations in brain networks
6 Figures
null
null
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The brain forms and stores distributed representations from sparse external input that compete for neuronal resources with already stored memory traces. It is unclear what dynamical properties of neural systems allow formation and subsequent consolidation of new, distributed memory representations under these conditi...
[ { "created": "Fri, 24 Feb 2017 16:30:54 GMT", "version": "v1" }, { "created": "Wed, 7 Feb 2018 17:47:23 GMT", "version": "v2" } ]
2018-02-08
[ [ "Skilling", "Quinton M", "" ], [ "Maruyama", "Daniel", "" ], [ "Ognjanovski", "Nicolette", "" ], [ "Aton", "Sara J", "" ], [ "Zochowski", "Michal", "" ] ]
The brain forms and stores distributed representations from sparse external input that compete for neuronal resources with already stored memory traces. It is unclear what dynamical properties of neural systems allow formation and subsequent consolidation of new, distributed memory representations under these condition...
1008.5166
Saket Navlakha
Saket Navlakha and Carl Kingsford
Network Archaeology: Uncovering Ancient Networks from Present-day Interactions
16 pages, 10 figures
null
10.1371/journal.pcbi.1001119
null
q-bio.MN cs.SI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Often questions arise about old or extinct networks. What proteins interacted in a long-extinct ancestor species of yeast? Who were the central players in the Last.fm social network 3 years ago? Our ability to answer such questions has been limited by the unavailability of past versions of networks. To overcome these...
[ { "created": "Mon, 30 Aug 2010 21:00:27 GMT", "version": "v1" } ]
2015-05-19
[ [ "Navlakha", "Saket", "" ], [ "Kingsford", "Carl", "" ] ]
Often questions arise about old or extinct networks. What proteins interacted in a long-extinct ancestor species of yeast? Who were the central players in the Last.fm social network 3 years ago? Our ability to answer such questions has been limited by the unavailability of past versions of networks. To overcome these l...
1403.2352
Benoit Gauzens
Benoit Gauzens, Elisa Th\'ebault, G\'erard Lacroix, St\'ephane Legendre
Trophic groups and modules: two levels of group detection in food webs
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within food webs, species can be partitioned into groups according to various criteria. Two notions have received particular attention: trophic groups, which have been used for decades in the ecological literature, and more recently, modules. The relationship between these two group definitions remains unknown in emp...
[ { "created": "Fri, 21 Feb 2014 09:59:31 GMT", "version": "v1" }, { "created": "Mon, 13 Apr 2015 12:51:37 GMT", "version": "v2" } ]
2015-04-14
[ [ "Gauzens", "Benoit", "" ], [ "Thébault", "Elisa", "" ], [ "Lacroix", "Gérard", "" ], [ "Legendre", "Stéphane", "" ] ]
Within food webs, species can be partitioned into groups according to various criteria. Two notions have received particular attention: trophic groups, which have been used for decades in the ecological literature, and more recently, modules. The relationship between these two group definitions remains unknown in empir...
2309.14523
Christian Klos
Christian Klos, Raoul-Martin Memmesheimer
Smooth Exact Gradient Descent Learning in Spiking Neural Networks
null
null
null
null
q-bio.NC cs.NE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Artificial neural networks are highly successfully trained with backpropagation. For spiking neural networks, however, a similar gradient descent scheme seems prohibitive due to the sudden, disruptive (dis-)appearance of spikes. Here, we demonstrate exact gradient descent learning based on spiking dynamics that chang...
[ { "created": "Mon, 25 Sep 2023 20:51:00 GMT", "version": "v1" } ]
2023-09-27
[ [ "Klos", "Christian", "" ], [ "Memmesheimer", "Raoul-Martin", "" ] ]
Artificial neural networks are highly successfully trained with backpropagation. For spiking neural networks, however, a similar gradient descent scheme seems prohibitive due to the sudden, disruptive (dis-)appearance of spikes. Here, we demonstrate exact gradient descent learning based on spiking dynamics that change ...
2006.08356
Luigi Brugnano
Luigi Brugnano, Felice Iavernaro, Paolo Zanzottera
The hidden side of COVID-19 spread in Italy
21 pages, 10 figures
Math Meth Appl Sci. (2020) 1-14
10.1002/mma.7039
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Background. The paper concerns the SARS-CoV2 (COVID-19) pandemic that, starting from the end of February 2020, began spreading along the Italian peninsula, by first attacking small communities in north regions, and then extending to the center and south of Italy, including the two main islands. Objective. The creat...
[ { "created": "Thu, 11 Jun 2020 18:26:15 GMT", "version": "v1" } ]
2020-11-25
[ [ "Brugnano", "Luigi", "" ], [ "Iavernaro", "Felice", "" ], [ "Zanzottera", "Paolo", "" ] ]
Background. The paper concerns the SARS-CoV2 (COVID-19) pandemic that, starting from the end of February 2020, began spreading along the Italian peninsula, by first attacking small communities in north regions, and then extending to the center and south of Italy, including the two main islands. Objective. The creation ...
2304.01348
James Stone Dr
James V Stone
Methods for Estimating Neural Information
7 pages, 2 figures
null
null
null
q-bio.NC cs.IT math.IT
http://creativecommons.org/licenses/by-nc-sa/4.0/
Estimating the Shannon information associated with individual neurons is a non-trivial problem. Three key methods used to estimate the mutual information between neuron inputs and outputs are described, and a list of further readings is provided.
[ { "created": "Tue, 20 Dec 2022 12:13:48 GMT", "version": "v1" } ]
2023-04-05
[ [ "Stone", "James V", "" ] ]
Estimating the Shannon information associated with individual neurons is a non-trivial problem. Three key methods used to estimate the mutual information between neuron inputs and outputs are described, and a list of further readings is provided.
q-bio/0611074
Pitman Damien
Janko Gravner (1), Damien Pitman (1), Sergey Gavrilets (2), ((1) Mathematics Department, University of California, Davis, (2) Department of Ecology and Evolutionary Biology and Mathematics, University of Tennessee, Knoxville)
Percolation on fitness landscapes: effects of correlation, phenotype, and incompatibilities
31 pages, 4 figures, 1 table
null
null
null
q-bio.PE
null
We study how correlations in the random fitness assignment may affect the structure of fitness landscapes. We consider three classes of fitness models. The first is a continuous phenotype space in which individuals are characterized by a large number of continuously varying traits such as size, weight, color, or conc...
[ { "created": "Thu, 23 Nov 2006 04:16:41 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gravner", "Janko", "" ], [ "Pitman", "Damien", "" ], [ "Gavrilets", "Sergey", "" ] ]
We study how correlations in the random fitness assignment may affect the structure of fitness landscapes. We consider three classes of fitness models. The first is a continuous phenotype space in which individuals are characterized by a large number of continuously varying traits such as size, weight, color, or concen...
0912.1637
Joshua Vogelstein
Joshua T. Vogelstein, Adam M. Packer, Tim A. Machado, Tanya Sippy, Baktash Babadi, Rafael Yuste, Liam Paninski
Fast non-negative deconvolution for spike train inference from population calcium imaging
22 pages, 10 figures
null
10.1152/jn.01073.2009
null
q-bio.QM q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Calcium imaging for observing spiking activity from large populations of neurons are quickly gaining popularity. While the raw data are fluorescence movies, the underlying spike trains are of interest. This work presents a fast non-negative deconvolution filter to infer the approximately most likely spike train for e...
[ { "created": "Wed, 9 Dec 2009 19:19:19 GMT", "version": "v1" } ]
2011-02-21
[ [ "Vogelstein", "Joshua T.", "" ], [ "Packer", "Adam M.", "" ], [ "Machado", "Tim A.", "" ], [ "Sippy", "Tanya", "" ], [ "Babadi", "Baktash", "" ], [ "Yuste", "Rafael", "" ], [ "Paninski", "Liam", "" ] ]
Calcium imaging for observing spiking activity from large populations of neurons are quickly gaining popularity. While the raw data are fluorescence movies, the underlying spike trains are of interest. This work presents a fast non-negative deconvolution filter to infer the approximately most likely spike train for eac...
0810.2946
Aleksandra Walczak
Aleksandra M. Walczak and Peter G. Wolynes
Gene-gene cooperativity in small networks
22 pages, 10 figures
null
10.1016/j.bpj.2009.03.005
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show how to construct a reduced description of interacting genes in noisy, small regulatory networks using coupled binary "spin" variables. Treating both the protein number and gene expression state variables stochastically and on equal footing we propose a mapping which connects the molecular level description of...
[ { "created": "Thu, 16 Oct 2008 15:28:58 GMT", "version": "v1" } ]
2015-05-13
[ [ "Walczak", "Aleksandra M.", "" ], [ "Wolynes", "Peter G.", "" ] ]
We show how to construct a reduced description of interacting genes in noisy, small regulatory networks using coupled binary "spin" variables. Treating both the protein number and gene expression state variables stochastically and on equal footing we propose a mapping which connects the molecular level description of n...
2201.04927
Alain Destexhe
Davide Forcella, Alberto Romagnoni, Alain Destexhe
Neuronal cable equations derived from the hydrodynamic motion of charged particles
null
null
10.1007/s00033-023-01986-y
null
q-bio.NC
http://creativecommons.org/licenses/by/4.0/
Neuronal cable theory is usually derived from an electric analogue of the membrane, which contrasts with the slow movement of ions in aqueous media. We show here that it is possible to derive neuronal cable equations from a different perspective, based on the laws of hydrodynamic motion of charged particles (Navier-S...
[ { "created": "Thu, 13 Jan 2022 12:52:09 GMT", "version": "v1" } ]
2023-04-26
[ [ "Forcella", "Davide", "" ], [ "Romagnoni", "Alberto", "" ], [ "Destexhe", "Alain", "" ] ]
Neuronal cable theory is usually derived from an electric analogue of the membrane, which contrasts with the slow movement of ions in aqueous media. We show here that it is possible to derive neuronal cable equations from a different perspective, based on the laws of hydrodynamic motion of charged particles (Navier-Sto...
2406.02659
Andrew Luo
Jacob Yeung, Andrew F. Luo, Gabriel Sarch, Margaret M. Henderson, Deva Ramanan, Michael J. Tarr
Neural Representations of Dynamic Visual Stimuli
null
null
null
null
q-bio.NC cs.AI cs.CV
http://creativecommons.org/licenses/by/4.0/
Humans experience the world through constantly changing visual stimuli, where scenes can shift and move, change in appearance, and vary in distance. The dynamic nature of visual perception is a fundamental aspect of our daily lives, yet the large majority of research on object and scene processing, particularly using...
[ { "created": "Tue, 4 Jun 2024 17:59:49 GMT", "version": "v1" } ]
2024-06-06
[ [ "Yeung", "Jacob", "" ], [ "Luo", "Andrew F.", "" ], [ "Sarch", "Gabriel", "" ], [ "Henderson", "Margaret M.", "" ], [ "Ramanan", "Deva", "" ], [ "Tarr", "Michael J.", "" ] ]
Humans experience the world through constantly changing visual stimuli, where scenes can shift and move, change in appearance, and vary in distance. The dynamic nature of visual perception is a fundamental aspect of our daily lives, yet the large majority of research on object and scene processing, particularly using f...
2210.10901
Alberto Coccarelli Coccarelli
Albertoo Coccarelli, Michael D. Nelson
Modeling Reactive Hyperemia to better understand and assess Microvascular Function: a review of techniques
n/a
Annals of Biomedical Engineering 2023
10.1007/s10439-022-03134-5
null
q-bio.TO
http://creativecommons.org/licenses/by/4.0/
Reactive hyperemia is a well-established technique for the non-invasive evaluation of the peripheral microcirculatory function, measured as the magnitude of limb re-perfusion after a brief period of ischemia. Despite widespread adoption by researchers and clinicians alike, many uncertainties remain surrounding interp...
[ { "created": "Wed, 19 Oct 2022 21:42:27 GMT", "version": "v1" } ]
2023-02-03
[ [ "Coccarelli", "Albertoo", "" ], [ "Nelson", "Michael D.", "" ] ]
Reactive hyperemia is a well-established technique for the non-invasive evaluation of the peripheral microcirculatory function, measured as the magnitude of limb re-perfusion after a brief period of ischemia. Despite widespread adoption by researchers and clinicians alike, many uncertainties remain surrounding interpre...
2005.10517
Marco Storace PhD
Valentina Baruzzi, Matteo Lodi, Marco Storace, Andrey Shilnikov
Generalized half-center oscillators with short-term synaptic plasticity
null
Phys. Rev. E 102, 032406 (2020)
10.1103/PhysRevE.102.032406
null
q-bio.NC math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
How can we develop simple yet realistic models of the small neural circuits known as central pattern generators (CPGs), which contribute to generate complex multi-phase locomotion in living animals? In this paper we introduce a new model (with design criteria) of a generalized half-center oscillator (gHCO), (pools of...
[ { "created": "Thu, 21 May 2020 08:43:16 GMT", "version": "v1" } ]
2020-09-16
[ [ "Baruzzi", "Valentina", "" ], [ "Lodi", "Matteo", "" ], [ "Storace", "Marco", "" ], [ "Shilnikov", "Andrey", "" ] ]
How can we develop simple yet realistic models of the small neural circuits known as central pattern generators (CPGs), which contribute to generate complex multi-phase locomotion in living animals? In this paper we introduce a new model (with design criteria) of a generalized half-center oscillator (gHCO), (pools of) ...
1910.06965
Samaneh Jozashoori
Samaneh Jozashoori, Amir Jozashoori, Heiko Schoof
AFDP: An Automated Function Description Prediction Approach to Improve Accuracy of Protein Function Predictions
null
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the rapid growth in high-throughput biological sequencing technologies and subsequently the amount of produced omics data, it is essential to develop automated methods to annotate the functionality of unknown genes and proteins. There are developed tools such as AHRD applying known proteins characterization to a...
[ { "created": "Tue, 15 Oct 2019 12:19:34 GMT", "version": "v1" } ]
2019-10-17
[ [ "Jozashoori", "Samaneh", "" ], [ "Jozashoori", "Amir", "" ], [ "Schoof", "Heiko", "" ] ]
With the rapid growth in high-throughput biological sequencing technologies and subsequently the amount of produced omics data, it is essential to develop automated methods to annotate the functionality of unknown genes and proteins. There are developed tools such as AHRD applying known proteins characterization to ann...
2210.01691
Kevin McKee
Kevin McKee, Ian Crandell, Rishidev Chaudhuri, Randall O'Reilly
Adaptive Synaptic Failure Enables Sampling from Posterior Predictive Distributions in the Brain
23 pages, 5 figures. arXiv admin note: text overlap with arXiv:2111.09780
null
null
null
q-bio.NC stat.ML
http://creativecommons.org/licenses/by/4.0/
Bayesian interpretations of neural processing require that biological mechanisms represent and operate upon probability distributions in accordance with Bayes' theorem. Many have speculated that synaptic failure constitutes a mechanism of variational, i.e., approximate, Bayesian inference in the brain. Whereas models...
[ { "created": "Tue, 4 Oct 2022 15:41:44 GMT", "version": "v1" } ]
2022-10-05
[ [ "McKee", "Kevin", "" ], [ "Crandell", "Ian", "" ], [ "Chaudhuri", "Rishidev", "" ], [ "O'Reilly", "Randall", "" ] ]
Bayesian interpretations of neural processing require that biological mechanisms represent and operate upon probability distributions in accordance with Bayes' theorem. Many have speculated that synaptic failure constitutes a mechanism of variational, i.e., approximate, Bayesian inference in the brain. Whereas models h...
2405.18402
Athulya Ram
Leonid Bunimovich and Athulya Ram
Antigenic Cooperation in Viral Populations: Redistribution of Loads Among Altruistic Viruses and Maximal Load per Altruist
37 pages, 9 figures
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
The paper continues the study of the phenomenon of local immunodeficiency (LI) in viral cross-immunoreactivity networks, with a focus on the roles and interactions between altruistic and persistent viral variants. As always, only the state of stable (i.e. observable) LI is analysed. First, we show that a single altru...
[ { "created": "Tue, 28 May 2024 17:44:02 GMT", "version": "v1" } ]
2024-05-29
[ [ "Bunimovich", "Leonid", "" ], [ "Ram", "Athulya", "" ] ]
The paper continues the study of the phenomenon of local immunodeficiency (LI) in viral cross-immunoreactivity networks, with a focus on the roles and interactions between altruistic and persistent viral variants. As always, only the state of stable (i.e. observable) LI is analysed. First, we show that a single altruis...
1404.6448
Markus Pagitz Dr
Markus Pagitz, Manuel Pagitz and C. H\"uhne
A modular approach to adaptive structures
15 pages, 9 figures
null
10.1088/1748-3182/9/4/046005
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A remarkable property of nastic, shape changing plants is their complete fusion between actuators and structure. This is achieved by combining a large number of cells whose geometry, internal pressures and material properties are optimized for a given set of target shapes and stiffness requirements. An advantage of s...
[ { "created": "Fri, 25 Apr 2014 15:03:15 GMT", "version": "v1" }, { "created": "Fri, 17 Jul 2015 18:56:58 GMT", "version": "v2" } ]
2015-07-20
[ [ "Pagitz", "Markus", "" ], [ "Pagitz", "Manuel", "" ], [ "Hühne", "C.", "" ] ]
A remarkable property of nastic, shape changing plants is their complete fusion between actuators and structure. This is achieved by combining a large number of cells whose geometry, internal pressures and material properties are optimized for a given set of target shapes and stiffness requirements. An advantage of suc...
1505.01642
Thomas Risler
Pedro Campinho, Martin Behrndt, Jonas Ranft, Thomas Risler, Nicolas Minc and Carl-Philipp Heisenberg
Tension-oriented cell divisions limit anisotropic tissue tension in epithelial spreading during zebrafish epiboly
Methods, supplementary information and associated references are available in the published online version of the paper at http://www.nature.com/doifinder/10.1038/ncb2869
Nature Cell Biology 15 (12), 1405-1414 (2013)
10.1038/ncb2869
null
q-bio.TO physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Epithelial spreading is a common and fundamental aspect of various developmental and disease-related processes such as epithelial closure and wound healing. A key challenge for epithelial tissues undergoing spreading is to increase their surface area without disrupting epithelial integrity. Here we show that orientin...
[ { "created": "Thu, 7 May 2015 09:55:08 GMT", "version": "v1" } ]
2015-05-08
[ [ "Campinho", "Pedro", "" ], [ "Behrndt", "Martin", "" ], [ "Ranft", "Jonas", "" ], [ "Risler", "Thomas", "" ], [ "Minc", "Nicolas", "" ], [ "Heisenberg", "Carl-Philipp", "" ] ]
Epithelial spreading is a common and fundamental aspect of various developmental and disease-related processes such as epithelial closure and wound healing. A key challenge for epithelial tissues undergoing spreading is to increase their surface area without disrupting epithelial integrity. Here we show that orienting ...
1804.09256
Giuseppe Tronci
Giuseppe Tronci
The application of collagen in advanced wound dressings
37 pages, 6 figures, 1 table (to appear in "Advanced Textiles for Wound Care, 2nd ed")
Advanced Textiles for Wound Care (2nd ed), 2018
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chronic wounds fail to proceed through an orderly and timely self healing process, resulting in cutaneous damage with full thickness in depth and leading to a major healthcare and economic burden worldwide. In the UK alone, 200,000 patients suffer from a chronic wound, whilst the global advanced wound care market is ...
[ { "created": "Tue, 24 Apr 2018 20:54:36 GMT", "version": "v1" }, { "created": "Fri, 27 Apr 2018 11:39:08 GMT", "version": "v2" } ]
2018-04-30
[ [ "Tronci", "Giuseppe", "" ] ]
Chronic wounds fail to proceed through an orderly and timely self healing process, resulting in cutaneous damage with full thickness in depth and leading to a major healthcare and economic burden worldwide. In the UK alone, 200,000 patients suffer from a chronic wound, whilst the global advanced wound care market is ex...
1903.05288
Sang-Yoon Kim
Sang-Yoon Kim and Woochang Lim
Effect of Interpopulation Spike-Timing-Dependent Plasticity on Synchronized Rhythms in Neuronal Networks with Inhibitory and Excitatory Populations
null
null
null
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider clustered small-world networks with both inhibitory (I) and excitatory (E) populations. This I-E neuronal network has adaptive dynamic I to E and E to I interpopulation synaptic strengths, governed by interpopulation spike-timing-dependent plasticity (STDP). In previous works without STDPs, fast sparsely ...
[ { "created": "Wed, 13 Mar 2019 01:55:15 GMT", "version": "v1" }, { "created": "Tue, 13 Aug 2019 01:02:38 GMT", "version": "v2" }, { "created": "Mon, 10 Feb 2020 08:26:23 GMT", "version": "v3" }, { "created": "Tue, 11 Feb 2020 05:43:03 GMT", "version": "v4" } ]
2020-02-12
[ [ "Kim", "Sang-Yoon", "" ], [ "Lim", "Woochang", "" ] ]
We consider clustered small-world networks with both inhibitory (I) and excitatory (E) populations. This I-E neuronal network has adaptive dynamic I to E and E to I interpopulation synaptic strengths, governed by interpopulation spike-timing-dependent plasticity (STDP). In previous works without STDPs, fast sparsely sy...
1308.4187
Tahir Yusufaly
Tahir I. Yusufaly, Yun Li and Wilma K. Olson
5-Methylation of Cytosine in CG:CG Base-Pair Steps: A Physicochemical Mechanism for the Epigenetic Control of DNA Nanomechanics
Accepted to J. Phys. Chem. B. Supplemental Information available upon request
null
10.1021/jp409887t
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Van der Waals density functional theory is integrated with analysis of a non-redundant set of protein-DNA crystal structures from the Nucleic Acid Database to study the stacking energetics of CG:CG base-pair steps, specifically the role of cytosine 5-methylation. Principal component analysis of the steps reveals the ...
[ { "created": "Mon, 19 Aug 2013 22:59:08 GMT", "version": "v1" }, { "created": "Fri, 20 Sep 2013 21:39:31 GMT", "version": "v2" }, { "created": "Sun, 8 Dec 2013 19:41:44 GMT", "version": "v3" } ]
2013-12-10
[ [ "Yusufaly", "Tahir I.", "" ], [ "Li", "Yun", "" ], [ "Olson", "Wilma K.", "" ] ]
Van der Waals density functional theory is integrated with analysis of a non-redundant set of protein-DNA crystal structures from the Nucleic Acid Database to study the stacking energetics of CG:CG base-pair steps, specifically the role of cytosine 5-methylation. Principal component analysis of the steps reveals the do...
1312.3382
Xiaobei Zhou
Xiaobei Zhou and Helen Lindsay and Mark D. Robinson
Robustly detecting differential expression in RNA sequencing data using observation weights
18 pages, 6 figures (v2)
null
null
null
q-bio.QM stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A popular approach for comparing gene expression levels between (replicated) conditions of RNA sequencing data relies on counting reads that map to features of interest. Within such count-based methods, many flexible and advanced statistical approaches now exist and offer the ability to adjust for covariates (e.g., b...
[ { "created": "Thu, 12 Dec 2013 02:01:15 GMT", "version": "v1" }, { "created": "Fri, 14 Mar 2014 16:15:39 GMT", "version": "v2" } ]
2014-03-17
[ [ "Zhou", "Xiaobei", "" ], [ "Lindsay", "Helen", "" ], [ "Robinson", "Mark D.", "" ] ]
A popular approach for comparing gene expression levels between (replicated) conditions of RNA sequencing data relies on counting reads that map to features of interest. Within such count-based methods, many flexible and advanced statistical approaches now exist and offer the ability to adjust for covariates (e.g., bat...
2311.16126
Fang Wu
Fang Wu, Stan Z. Li
A Hierarchical Training Paradigm for Antibody Structure-sequence Co-design
null
null
null
null
q-bio.BM cs.CE cs.LG
http://creativecommons.org/licenses/by/4.0/
Therapeutic antibodies are an essential and rapidly expanding drug modality. The binding specificity between antibodies and antigens is decided by complementarity-determining regions (CDRs) at the tips of these Y-shaped proteins. In this paper, we propose a hierarchical training paradigm (HTP) for the antibody sequen...
[ { "created": "Mon, 30 Oct 2023 02:39:15 GMT", "version": "v1" } ]
2023-11-29
[ [ "Wu", "Fang", "" ], [ "Li", "Stan Z.", "" ] ]
Therapeutic antibodies are an essential and rapidly expanding drug modality. The binding specificity between antibodies and antigens is decided by complementarity-determining regions (CDRs) at the tips of these Y-shaped proteins. In this paper, we propose a hierarchical training paradigm (HTP) for the antibody sequence...
1309.4441
Astero Provata
A. Provata, C. Nicolis and G. Nicolis
DNA viewed as an out-of-equilibrium structure
null
null
10.1103/PhysRevE.89.052105
null
q-bio.GN cond-mat.stat-mech nlin.AO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The complexity of the primary structure of human DNA is explored using methods from nonequilibrium statistical mechanics, dynamical systems theory and information theory. The use of chi-square tests shows that DNA cannot be described as a low order Markov chain of order up to $r=6$. Although detailed balance seems to...
[ { "created": "Tue, 17 Sep 2013 08:01:24 GMT", "version": "v1" } ]
2015-06-17
[ [ "Provata", "A.", "" ], [ "Nicolis", "C.", "" ], [ "Nicolis", "G.", "" ] ]
The complexity of the primary structure of human DNA is explored using methods from nonequilibrium statistical mechanics, dynamical systems theory and information theory. The use of chi-square tests shows that DNA cannot be described as a low order Markov chain of order up to $r=6$. Although detailed balance seems to h...
2306.15912
Yufan Liu
Yufan Liu and Boxue Tian
Protein-DNA binding sites prediction based on pre-trained protein language model and contrastive learning
null
null
null
null
q-bio.BM q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein-DNA interaction is critical for life activities such as replication, transcription, and splicing. Identifying protein-DNA binding residues is essential for modeling their interaction and downstream studies. However, developing accurate and efficient computational methods for this task remains challenging. Imp...
[ { "created": "Wed, 28 Jun 2023 04:27:27 GMT", "version": "v1" } ]
2023-06-29
[ [ "Liu", "Yufan", "" ], [ "Tian", "Boxue", "" ] ]
Protein-DNA interaction is critical for life activities such as replication, transcription, and splicing. Identifying protein-DNA binding residues is essential for modeling their interaction and downstream studies. However, developing accurate and efficient computational methods for this task remains challenging. Impro...
2408.05695
Zhaoyu Liu
Zhaoyu Liu, Jingxun Chen, Mingkun Xu, David H. Gracias, Ken-Tye Yong, Yuanyuan Wei, Ho-Pui Ho
Advancements in Programmable Lipid Nanoparticles: A Comprehensive Review of the Four-Domain Model for Precision Drug Delivery
53 pages, 9 figures
null
null
null
q-bio.BM physics.bio-ph
http://creativecommons.org/licenses/by/4.0/
Programmable lipid nanoparticles (LNPs) represent a critical advancement in drug delivery. It offers precise spatiotemporal control over drug distribution and release, which is essential for treating complex diseases such as cancer and genetic disorders. However, the design and understanding of these sophisticated sy...
[ { "created": "Sun, 11 Aug 2024 04:50:35 GMT", "version": "v1" }, { "created": "Wed, 14 Aug 2024 02:11:49 GMT", "version": "v2" } ]
2024-08-15
[ [ "Liu", "Zhaoyu", "" ], [ "Chen", "Jingxun", "" ], [ "Xu", "Mingkun", "" ], [ "Gracias", "David H.", "" ], [ "Yong", "Ken-Tye", "" ], [ "Wei", "Yuanyuan", "" ], [ "Ho", "Ho-Pui", "" ] ]
Programmable lipid nanoparticles (LNPs) represent a critical advancement in drug delivery. It offers precise spatiotemporal control over drug distribution and release, which is essential for treating complex diseases such as cancer and genetic disorders. However, the design and understanding of these sophisticated syst...
0707.3224
Rudolf A. Roemer
G. Cuniberti, E. Macia, A. Rodriguez, R. A. R\"omer
Tight-binding modeling of charge migration in DNA devices
24 PDF pages of Springer SVMult LaTeX (included), ISBN-10: 3540724931, ISBN-13: 978-3540724933
in "Charge Migration in DNA: Perspectives from Physics, Chemistry and Biology" (T. Chakraborty, Ed.), Springer Verlag, Berlin, pp. 1-21 (2007), ISBN: 978-3-540-72493-3
10.1007/978-3-540-72494-0_1
null
q-bio.GN cond-mat.soft q-bio.OT
null
Long range charge transfer experiments in DNA oligomers and the subsequently measured -- and very diverse -- transport response of DNA wires in solid state experiments exemplifies the need for a thorough theoretical understanding of charge migration in DNA-based natural and artificial materials. Here we present a rev...
[ { "created": "Sat, 21 Jul 2007 19:53:08 GMT", "version": "v1" } ]
2015-05-13
[ [ "Cuniberti", "G.", "" ], [ "Macia", "E.", "" ], [ "Rodriguez", "A.", "" ], [ "Römer", "R. A.", "" ] ]
Long range charge transfer experiments in DNA oligomers and the subsequently measured -- and very diverse -- transport response of DNA wires in solid state experiments exemplifies the need for a thorough theoretical understanding of charge migration in DNA-based natural and artificial materials. Here we present a revie...
q-bio/0310015
Jan Karbowski
Jan Karbowski
How does connectivity between cortical areas depend on brain size? Implications for efficient computation
brain, theoretical neuroanatomy, computational neuroanatomy, cortical areas, scaling, connectivity
Journal of Computational Neuroscience 15, 347-356 (2003)
null
null
q-bio.NC q-bio.QM
null
A formula for an average connectivity between cortical areas in mammals is derived. Based on comparative neuroanatomical data, it is found, surprisingly, that this connectivity is either only weakly dependent or independent of brain size. It is discussed how this formula can be used to estimate the average length of ...
[ { "created": "Tue, 14 Oct 2003 01:58:12 GMT", "version": "v1" } ]
2007-05-23
[ [ "Karbowski", "Jan", "" ] ]
A formula for an average connectivity between cortical areas in mammals is derived. Based on comparative neuroanatomical data, it is found, surprisingly, that this connectivity is either only weakly dependent or independent of brain size. It is discussed how this formula can be used to estimate the average length of ax...
1307.3358
Andrea Riba Mr
Andrea Riba, Carla Bosia, Mariama El Baroudi, Laura Ollino and Michele Caselle
A combination of transcriptional and microRNA regulation improves the stability of the relative concentrations of target genes
23 pages, 10 figures
null
10.1371/journal.pcbi.1003490
null
q-bio.MN q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is well known that, under suitable conditions, microRNAs are able to fine tune the relative concentration of their targets to any desired value. We show that this function is particularly effective when one of the targets is a Transcription Factor (TF) which regulates the other targets. This combination defines a ...
[ { "created": "Fri, 12 Jul 2013 07:57:17 GMT", "version": "v1" } ]
2015-06-16
[ [ "Riba", "Andrea", "" ], [ "Bosia", "Carla", "" ], [ "Baroudi", "Mariama El", "" ], [ "Ollino", "Laura", "" ], [ "Caselle", "Michele", "" ] ]
It is well known that, under suitable conditions, microRNAs are able to fine tune the relative concentration of their targets to any desired value. We show that this function is particularly effective when one of the targets is a Transcription Factor (TF) which regulates the other targets. This combination defines a ne...
1302.3261
Dominique Vuillaume
O. Bichler, W. Zhao, F. Alibart, S. Pleutin, S. Lenfant, D. Vuillaume, C. Gamrat
Pavlov's dog associative learning demonstrated on synaptic-like organic transistors
null
Neural Computation 25(2), 549-566 (2013)
10.1162/NECO_a_00377
null
q-bio.NC cond-mat.dis-nn cs.ET cs.NE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter, we present an original demonstration of an associative learning neural network inspired by the famous Pavlov's dogs experiment. A single nanoparticle organic memory field effect transistor (NOMFET) is used to implement each synapse. We show how the physical properties of this dynamic memristive device...
[ { "created": "Wed, 13 Feb 2013 22:18:49 GMT", "version": "v1" } ]
2013-02-19
[ [ "Bichler", "O.", "" ], [ "Zhao", "W.", "" ], [ "Alibart", "F.", "" ], [ "Pleutin", "S.", "" ], [ "Lenfant", "S.", "" ], [ "Vuillaume", "D.", "" ], [ "Gamrat", "C.", "" ] ]
In this letter, we present an original demonstration of an associative learning neural network inspired by the famous Pavlov's dogs experiment. A single nanoparticle organic memory field effect transistor (NOMFET) is used to implement each synapse. We show how the physical properties of this dynamic memristive device c...
q-bio/0610002
Sergey Gavrilets
Sergey Gavrilets and Aaron Vose
The dynamics of Machiavellian intelligence
A revised version has been published by PNAS
null
10.1073/pnas.0601428103
null
q-bio.PE nlin.AO
null
The "Machiavellian intelligence" hypothesis (or the "social brain" hypothesis) posits that large brains and distinctive cognitive abilities of humans have evolved via intense social competition in which social competitors developed increasingly sophisticated "Machiavellian" strategies as a means to achieve higher soc...
[ { "created": "Sun, 1 Oct 2006 12:11:24 GMT", "version": "v1" }, { "created": "Sat, 7 Oct 2006 12:27:32 GMT", "version": "v2" }, { "created": "Mon, 30 Oct 2006 23:59:50 GMT", "version": "v3" } ]
2009-11-13
[ [ "Gavrilets", "Sergey", "" ], [ "Vose", "Aaron", "" ] ]
The "Machiavellian intelligence" hypothesis (or the "social brain" hypothesis) posits that large brains and distinctive cognitive abilities of humans have evolved via intense social competition in which social competitors developed increasingly sophisticated "Machiavellian" strategies as a means to achieve higher socia...
2112.06140
Yashar Zeighami
Yashar Zeighami, Mahsa Dadar, Justine Daoust, Melissa Pelletier, Laurent Biertho, Leonie Bouvet-Bouchard, Stephanie Fulton, Andre Tchernof, Alain Dagher, Denis Richard, Alan Evans, Andreanne Michaud
Impact of Weight Loss on Brain Age: Improved Brain Health Following Bariatric Surgery
null
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Overweight and obese individuals tend to have increased brain age, reflecting poorer brain health likely due to grey and white matter atrophy related to obesity. However, it is unclear if older brain age associated with obesity can be reversed following weight loss and cardiometabolic health improvement. The aim of t...
[ { "created": "Sun, 12 Dec 2021 03:46:18 GMT", "version": "v1" } ]
2021-12-14
[ [ "Zeighami", "Yashar", "" ], [ "Dadar", "Mahsa", "" ], [ "Daoust", "Justine", "" ], [ "Pelletier", "Melissa", "" ], [ "Biertho", "Laurent", "" ], [ "Bouvet-Bouchard", "Leonie", "" ], [ "Fulton", "Stephanie", ...
Overweight and obese individuals tend to have increased brain age, reflecting poorer brain health likely due to grey and white matter atrophy related to obesity. However, it is unclear if older brain age associated with obesity can be reversed following weight loss and cardiometabolic health improvement. The aim of thi...
0806.3130
Alfredo Iorio
Alfredo Iorio, Samik Sen, Siddhartha Sen
Do quantum effects hold together DNA condensates?
8 pages, 6 figures
null
null
null
q-bio.QM cond-mat.soft q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The classical electrostatic interaction between DNA molecules in water in the presence of counterions is reconsidered and we propose it is governed by a modified Poisson-Boltzmann equation. Quantum fluctuations are then studied and shown to lead to a vacuum interaction that is numerically computed for several configu...
[ { "created": "Thu, 19 Jun 2008 06:34:27 GMT", "version": "v1" } ]
2008-06-20
[ [ "Iorio", "Alfredo", "" ], [ "Sen", "Samik", "" ], [ "Sen", "Siddhartha", "" ] ]
The classical electrostatic interaction between DNA molecules in water in the presence of counterions is reconsidered and we propose it is governed by a modified Poisson-Boltzmann equation. Quantum fluctuations are then studied and shown to lead to a vacuum interaction that is numerically computed for several configura...
1912.12796
Liang Zhang
Liang Zhang, He Zhang, David H. Mathews, Liang Huang
ThreshKnot: Thresholded ProbKnot for Improved RNA Secondary Structure Prediction
null
null
null
null
q-bio.BM physics.bio-ph q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
RNA structure prediction is a challenging problem, especially with pseudoknots. Recently, there has been a shift from the classical minimum free energy-based methods (MFE) to partition function-based ones that assemble structures using base-pairing probabilities. Two examples of the latter group are the popular maxim...
[ { "created": "Mon, 30 Dec 2019 03:13:07 GMT", "version": "v1" }, { "created": "Thu, 9 Jan 2020 01:36:04 GMT", "version": "v2" } ]
2020-01-10
[ [ "Zhang", "Liang", "" ], [ "Zhang", "He", "" ], [ "Mathews", "David H.", "" ], [ "Huang", "Liang", "" ] ]
RNA structure prediction is a challenging problem, especially with pseudoknots. Recently, there has been a shift from the classical minimum free energy-based methods (MFE) to partition function-based ones that assemble structures using base-pairing probabilities. Two examples of the latter group are the popular maximum...
q-bio/0611080
Maksim Kouza M
Mai Suan Li, Maksim Kouza, Chin-Kun Hu
Refolding upon force quench and pathways of mechanical and thermal unfolding of ubiquitin
35 pages, 15 figures, 1 table
Biophysical Journal, 92, 547-561 (2007)
10.1529/biophysj.106.087684
null
q-bio.BM
null
The refolding from stretched initial conformations of ubiquitin (PDB ID: 1ubq) under the quenched force is studied using the Go model and the Langevin dynamics. It is shown that the refolding decouples the collapse and folding kinetics. The force quench refolding times scale as tau_F ~ exp(f_q*x_F/k_B*T), where f_q i...
[ { "created": "Fri, 24 Nov 2006 07:33:19 GMT", "version": "v1" } ]
2009-11-13
[ [ "Li", "Mai Suan", "" ], [ "Kouza", "Maksim", "" ], [ "Hu", "Chin-Kun", "" ] ]
The refolding from stretched initial conformations of ubiquitin (PDB ID: 1ubq) under the quenched force is studied using the Go model and the Langevin dynamics. It is shown that the refolding decouples the collapse and folding kinetics. The force quench refolding times scale as tau_F ~ exp(f_q*x_F/k_B*T), where f_q is ...
1502.07075
Bartosz Rozycki
Bartosz Rozycki and Marek Cieplak
Citrate synthase proteins in extremophilic organisms: Studies within a structure-based model
published in J. Chem. Phys
Journal of Chemical Physics 141, 235102 (2014)
10.1063/1.4903747
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study four citrate synthase homodimeric proteins within a structure-based coarse-grained model. Two of these proteins come from thermophilic bacteria, one from a cryophilic bacterium and one from a mesophilic organism; three are in the closed and two in the open conformations. Even though the proteins belong to th...
[ { "created": "Wed, 25 Feb 2015 07:54:59 GMT", "version": "v1" } ]
2015-02-26
[ [ "Rozycki", "Bartosz", "" ], [ "Cieplak", "Marek", "" ] ]
We study four citrate synthase homodimeric proteins within a structure-based coarse-grained model. Two of these proteins come from thermophilic bacteria, one from a cryophilic bacterium and one from a mesophilic organism; three are in the closed and two in the open conformations. Even though the proteins belong to the ...
2111.00194
Yusuke Maeda
Yusuke T. Maeda
Negative autoregulation controls size scaling in confined gene expression reactions
7 pages, 5 figures
Scientific Reports 12, 10516 (2022)
10.1038/s41598-022-14719-4
null
q-bio.MN physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gene expression via transcription-translation is the most fundamental reaction to sustain biological systems, and complex reactions such as this one occur in a small compartment of living cells. There is increasing evidence that t physical effects, such as molecular crowding or excluded volume effects of transcriptio...
[ { "created": "Sat, 30 Oct 2021 07:05:40 GMT", "version": "v1" }, { "created": "Mon, 11 Apr 2022 15:57:28 GMT", "version": "v2" } ]
2022-08-04
[ [ "Maeda", "Yusuke T.", "" ] ]
Gene expression via transcription-translation is the most fundamental reaction to sustain biological systems, and complex reactions such as this one occur in a small compartment of living cells. There is increasing evidence that t physical effects, such as molecular crowding or excluded volume effects of transcriptiona...
1011.1109
David Kleinhans
David Kleinhans, Per R. Jonsson
On the impact of dispersal asymmetry on metapopulation persistence
19 pages, 5 figures
Journal of Theoretical Biology, 290, pages 37-45 (2011)
10.1016/j.jtbi.2011.09.002
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Metapopulation theory for a long time has assumed dispersal to be symmetric, i.e. patches are connected through migrants dispersing bi-directionally without a preferred direction. However, for natural populations symmetry is often broken, e.g. for species in the marine environment dispersing through the transport of ...
[ { "created": "Thu, 4 Nov 2010 10:52:13 GMT", "version": "v1" }, { "created": "Wed, 8 Jun 2011 09:51:35 GMT", "version": "v2" }, { "created": "Thu, 1 Sep 2011 09:53:04 GMT", "version": "v3" } ]
2011-10-07
[ [ "Kleinhans", "David", "" ], [ "Jonsson", "Per R.", "" ] ]
Metapopulation theory for a long time has assumed dispersal to be symmetric, i.e. patches are connected through migrants dispersing bi-directionally without a preferred direction. However, for natural populations symmetry is often broken, e.g. for species in the marine environment dispersing through the transport of pe...
1412.0780
Zahra Aminzare
Jana L. Gevertz, Zahra Aminzare, Kerri-Ann Norton, Judith Perez-Velazquez, Alexandria Volkening, Katarzyna A. Rejniak
Emergence of Anti-Cancer Drug Resistance: Exploring the Importance of the Microenvironmental Niche via a Spatial Model
null
null
null
null
q-bio.PE q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Practically, all chemotherapeutic agents lead to drug resistance. Clinically, it is a challenge to determine whether resistance arises prior to, or as a result of, cancer therapy. Further, a number of different intracellular and microenvironmental factors have been correlated with the emergence of drug resistance. Wi...
[ { "created": "Tue, 2 Dec 2014 04:17:38 GMT", "version": "v1" } ]
2014-12-03
[ [ "Gevertz", "Jana L.", "" ], [ "Aminzare", "Zahra", "" ], [ "Norton", "Kerri-Ann", "" ], [ "Perez-Velazquez", "Judith", "" ], [ "Volkening", "Alexandria", "" ], [ "Rejniak", "Katarzyna A.", "" ] ]
Practically, all chemotherapeutic agents lead to drug resistance. Clinically, it is a challenge to determine whether resistance arises prior to, or as a result of, cancer therapy. Further, a number of different intracellular and microenvironmental factors have been correlated with the emergence of drug resistance. With...
1409.4303
Arnab Ganguly
Arnab Ganguly, Derya Altintan, Heinz Koeppl
Jump-Diffusion Approximation of Stochastic Reaction Dynamics: Error bounds and Algorithms
32 pages, 7 figures
null
null
null
q-bio.QM math.PR q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Biochemical reactions can happen on different time scales and also the abundance of species in these reactions can be very different from each other. Classical approaches, such as deterministic or stochastic approach, fail to account for or to exploit this multi-scale nature, respectively. In this paper, we propose a...
[ { "created": "Mon, 15 Sep 2014 15:52:55 GMT", "version": "v1" } ]
2014-09-16
[ [ "Ganguly", "Arnab", "" ], [ "Altintan", "Derya", "" ], [ "Koeppl", "Heinz", "" ] ]
Biochemical reactions can happen on different time scales and also the abundance of species in these reactions can be very different from each other. Classical approaches, such as deterministic or stochastic approach, fail to account for or to exploit this multi-scale nature, respectively. In this paper, we propose a j...
2001.03761
Marinho Lopes
Marinho A. Lopes, Jiaxiang Zhang, Dominik Krzemi\'nski, Khalid Hamandi, Qi Chen, Lorenzo Livi, and Naoki Masuda
Recurrence Quantification Analysis of Dynamic Brain Networks
77 pages, 11 figures; note: the acknowledgments section is the most complete in this arxiv version (compared to the published version in EJN)
null
10.1111/ejn.14960
null
q-bio.NC cond-mat.dis-nn
http://creativecommons.org/licenses/by/4.0/
Evidence suggests that brain network dynamics is a key determinant of brain function and dysfunction. Here we propose a new framework to assess the dynamics of brain networks based on recurrence analysis. Our framework uses recurrence plots and recurrence quantification analysis to characterize dynamic networks. For ...
[ { "created": "Sat, 11 Jan 2020 14:41:34 GMT", "version": "v1" }, { "created": "Wed, 16 Sep 2020 11:04:57 GMT", "version": "v2" } ]
2020-09-17
[ [ "Lopes", "Marinho A.", "" ], [ "Zhang", "Jiaxiang", "" ], [ "Krzemiński", "Dominik", "" ], [ "Hamandi", "Khalid", "" ], [ "Chen", "Qi", "" ], [ "Livi", "Lorenzo", "" ], [ "Masuda", "Naoki", "" ] ]
Evidence suggests that brain network dynamics is a key determinant of brain function and dysfunction. Here we propose a new framework to assess the dynamics of brain networks based on recurrence analysis. Our framework uses recurrence plots and recurrence quantification analysis to characterize dynamic networks. For re...
2003.12089
Jun Chen
Komi Messan, Marisabel Rodriguez Messan, Jun Chen, Gloria DeGrandi-Hoffman, Yun Kang
Population dynamics of Varroa mite and honeybee: Effects of parasitism with age structure and seasonality
null
null
null
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Honeybees play an important role in the production of many agricultural crops and in sustaining plant diversity in undisturbed ecosystems. The rapid decline of honeybee populations have sparked great concern worldwide. Previous studies have shown that the parasitic Varroa mite could be the main reason for colony loss...
[ { "created": "Thu, 26 Mar 2020 18:13:14 GMT", "version": "v1" }, { "created": "Tue, 11 Aug 2020 00:04:48 GMT", "version": "v2" } ]
2020-08-12
[ [ "Messan", "Komi", "" ], [ "Messan", "Marisabel Rodriguez", "" ], [ "Chen", "Jun", "" ], [ "DeGrandi-Hoffman", "Gloria", "" ], [ "Kang", "Yun", "" ] ]
Honeybees play an important role in the production of many agricultural crops and in sustaining plant diversity in undisturbed ecosystems. The rapid decline of honeybee populations have sparked great concern worldwide. Previous studies have shown that the parasitic Varroa mite could be the main reason for colony losses...
1804.06984
Seung Ki Baek
Yohsuke Murase and Seung Ki Baek
Seven rules to avoid the tragedy of the commons
11 pages, 4 figures
null
10.1016/j.jtbi.2018.04.027
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cooperation among self-interested players in a social dilemma is fragile and easily interrupted by mistakes. In this work, we study the repeated $n$-person public-goods game and search for a strategy that forms a cooperative Nash equilibrium in the presence of implementation error with a guarantee that the resulting ...
[ { "created": "Thu, 19 Apr 2018 02:55:03 GMT", "version": "v1" } ]
2018-04-20
[ [ "Murase", "Yohsuke", "" ], [ "Baek", "Seung Ki", "" ] ]
Cooperation among self-interested players in a social dilemma is fragile and easily interrupted by mistakes. In this work, we study the repeated $n$-person public-goods game and search for a strategy that forms a cooperative Nash equilibrium in the presence of implementation error with a guarantee that the resulting pa...
2103.07107
Maxime Lenormand
Nicolas Dubos, Cl\'ementine Pr\'eau, Maxime Lenormand, Guillaume Papuga, Sophie Montsarrat, Pierre Denelle, Marine Le Louarn, Stien Heremans, May Roel, Philip Roche and Sandra Luque
Assessing the effect of sample bias correction in species distribution models
16 pages, 6 figures + Appendix
Ecological Indicators 145, 109487 (2022)
10.1016/j.ecolind.2022.109487
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Open-source biodiversity databases contain a large amount of species occurrence records, but these are often spatially biased, which affects the reliability of species distribution models based on these records. Sample bias correction techniques include data filtering at the cost of record numbers or require consider...
[ { "created": "Fri, 12 Mar 2021 07:02:04 GMT", "version": "v1" }, { "created": "Fri, 12 Nov 2021 10:12:06 GMT", "version": "v2" }, { "created": "Thu, 27 Oct 2022 06:50:50 GMT", "version": "v3" } ]
2022-10-28
[ [ "Dubos", "Nicolas", "" ], [ "Préau", "Clémentine", "" ], [ "Lenormand", "Maxime", "" ], [ "Papuga", "Guillaume", "" ], [ "Montsarrat", "Sophie", "" ], [ "Denelle", "Pierre", "" ], [ "Louarn", "Marine Le", "...
Open-source biodiversity databases contain a large amount of species occurrence records, but these are often spatially biased, which affects the reliability of species distribution models based on these records. Sample bias correction techniques include data filtering at the cost of record numbers or require considerab...
1909.13667
Matus Medo
Matus Medo, Daniel M. Aebersold, Michaela Medova
ProtRank: Bypassing the imputation of missing values in differential expression analysis of proteomic data
18 pages, 7 figures
null
null
null
q-bio.QM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Data from discovery proteomic and phosphoproteomic experiments typically include missing values that correspond to proteins that have not been identified in the analyzed sample. Replacing the missing values with random numbers, a process known as "imputation", avoids apparent infinite fold-change values. However, the...
[ { "created": "Mon, 30 Sep 2019 13:05:31 GMT", "version": "v1" } ]
2019-10-01
[ [ "Medo", "Matus", "" ], [ "Aebersold", "Daniel M.", "" ], [ "Medova", "Michaela", "" ] ]
Data from discovery proteomic and phosphoproteomic experiments typically include missing values that correspond to proteins that have not been identified in the analyzed sample. Replacing the missing values with random numbers, a process known as "imputation", avoids apparent infinite fold-change values. However, the p...
2007.06623
Joe Greener
Joe G Greener, Nikita Desai, Shaun M Kandathil, David T Jones
Near-complete protein structural modelling of the minimal genome
JGG and ND contributed equally to the work
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Protein tertiary structure prediction has improved dramatically in recent years. A considerable fraction of various proteomes can be modelled in the absence of structural templates. We ask whether our DMPfold method can model all the proteins without templates in the JCVI-syn3.0 minimal genome, which contains 438 pro...
[ { "created": "Mon, 13 Jul 2020 18:53:03 GMT", "version": "v1" } ]
2020-07-15
[ [ "Greener", "Joe G", "" ], [ "Desai", "Nikita", "" ], [ "Kandathil", "Shaun M", "" ], [ "Jones", "David T", "" ] ]
Protein tertiary structure prediction has improved dramatically in recent years. A considerable fraction of various proteomes can be modelled in the absence of structural templates. We ask whether our DMPfold method can model all the proteins without templates in the JCVI-syn3.0 minimal genome, which contains 438 prote...
2005.13438
Hyeoncheol Cho
Hyeoncheol Cho, Eok Kyun Lee, Insung S. Choi
InteractionNet: Modeling and Explaining of Noncovalent Protein-Ligand Interactions with Noncovalent Graph Neural Network and Layer-Wise Relevance Propagation
null
null
null
null
q-bio.BM cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Expanding the scope of graph-based, deep-learning models to noncovalent protein-ligand interactions has earned increasing attention in structure-based drug design. Modeling the protein-ligand interactions with graph neural networks (GNNs) has experienced difficulties in the conversion of protein-ligand complex struct...
[ { "created": "Tue, 12 May 2020 12:46:44 GMT", "version": "v1" } ]
2020-05-28
[ [ "Cho", "Hyeoncheol", "" ], [ "Lee", "Eok Kyun", "" ], [ "Choi", "Insung S.", "" ] ]
Expanding the scope of graph-based, deep-learning models to noncovalent protein-ligand interactions has earned increasing attention in structure-based drug design. Modeling the protein-ligand interactions with graph neural networks (GNNs) has experienced difficulties in the conversion of protein-ligand complex structur...
0901.0287
Aleksandar Stojmirovi\'c
Aleksandar Stojmirovi\'c and Yi-Kuo Yu
Information flow in interaction networks II: channels, path lengths and potentials
Minor changes from v3. 30 pages, 7 figures. Plain LaTeX format. This version contains some additional material compared to the journal submission: two figures, one appendix and a few paragraphs
J Comput Biol. 19(4):379-403, 2012
10.1089/cmb.2010.0228
null
q-bio.MN
http://creativecommons.org/licenses/publicdomain/
In our previous publication, a framework for information flow in interaction networks based on random walks with damping was formulated with two fundamental modes: emitting and absorbing. While many other network analysis methods based on random walks or equivalent notions have been developed before and after our ear...
[ { "created": "Fri, 2 Jan 2009 21:45:34 GMT", "version": "v1" }, { "created": "Wed, 6 Oct 2010 00:11:10 GMT", "version": "v2" }, { "created": "Wed, 14 Dec 2011 23:04:35 GMT", "version": "v3" }, { "created": "Thu, 19 Apr 2012 16:15:19 GMT", "version": "v4" } ]
2012-04-20
[ [ "Stojmirović", "Aleksandar", "" ], [ "Yu", "Yi-Kuo", "" ] ]
In our previous publication, a framework for information flow in interaction networks based on random walks with damping was formulated with two fundamental modes: emitting and absorbing. While many other network analysis methods based on random walks or equivalent notions have been developed before and after our earli...
1111.6489
Taiki Takahashi
Taiki Takahashi (1), Mizuho Shinada (1), Keigo Inukai (1,2), Shigehito Tanida (1), Chisato Takahashi (1), Nobuhiro Mifune (1,2), Haruto Takagishi (1,2), Yutaka Horita (1,2), Hirofumi Hashimoto (1,2), Kunihiro Yokota (1), Tatsuya Kameda (1), Toshio Yamagishi (1) ((1) Department of Behavioral Science, Hokkaido Un...
Stress hormones predict hyperbolic time-discount rates six months later in adults
null
Neuro Endocrinol Lett. 2010;31(5):616-621
null
null
q-bio.NC q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Objectives: Stress hormones have been associated with temporal discounting. Although time-discount rate is shown to be stable over a long term, no study to date examines whether individual differences in stress hormones could predict individuals' time-discount rates in the relatively distant future (e.g., six month l...
[ { "created": "Tue, 22 Nov 2011 15:01:14 GMT", "version": "v1" } ]
2012-12-04
[ [ "Takahashi", "Taiki", "" ], [ "Shinada", "Mizuho", "" ], [ "Inukai", "Keigo", "" ], [ "Tanida", "Shigehito", "" ], [ "Takahashi", "Chisato", "" ], [ "Mifune", "Nobuhiro", "" ], [ "Takagishi", "Haruto", "" ...
Objectives: Stress hormones have been associated with temporal discounting. Although time-discount rate is shown to be stable over a long term, no study to date examines whether individual differences in stress hormones could predict individuals' time-discount rates in the relatively distant future (e.g., six month lat...
1901.01059
Jochen Einbeck
Daniel Bonetti, Alexandre Delbem, Dorival Le\~ao, Jochen Einbeck
Estimation of Distribution Algorithm for Protein Structure Prediction
45 pages, 13 figures
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Proteins are essential for maintaining life. For example, knowing the structure of a protein, cell regulatory mechanisms of organisms can be modeled, supporting the development of disease treatments or the understanding of relationships between protein structures and food attributes. However, discovering the structur...
[ { "created": "Fri, 4 Jan 2019 11:26:42 GMT", "version": "v1" } ]
2019-01-07
[ [ "Bonetti", "Daniel", "" ], [ "Delbem", "Alexandre", "" ], [ "Leão", "Dorival", "" ], [ "Einbeck", "Jochen", "" ] ]
Proteins are essential for maintaining life. For example, knowing the structure of a protein, cell regulatory mechanisms of organisms can be modeled, supporting the development of disease treatments or the understanding of relationships between protein structures and food attributes. However, discovering the structure ...
1312.5231
Xiaofeng Liu
Xiaofeng Liu, Ning Xu and Aimin Jiang
Tortuosity Entropy: a measure of spatial complexity of behavioral changes in animal movement data
12 pages, 6 figures
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The goal of animal movement analysis is to understand how organisms explore and exploit the complex and varying environment. Animals usually exhibit varied and complicated movements, from apparently deterministic behaviors to highly random ones. This is critical for assessing movement efficiency and strategies that a...
[ { "created": "Wed, 18 Dec 2013 17:27:10 GMT", "version": "v1" }, { "created": "Thu, 16 Jan 2014 12:24:51 GMT", "version": "v2" } ]
2014-01-17
[ [ "Liu", "Xiaofeng", "" ], [ "Xu", "Ning", "" ], [ "Jiang", "Aimin", "" ] ]
The goal of animal movement analysis is to understand how organisms explore and exploit the complex and varying environment. Animals usually exhibit varied and complicated movements, from apparently deterministic behaviors to highly random ones. This is critical for assessing movement efficiency and strategies that are...
2106.14362
Nan Zheng
Nan Zheng, Vincent Fitzpatrick, Ran Cheng, Linli Shi, David L. Kaplan, Chen Yang
Photoacoustic Silk Scaffolds for Neural stimulation and Regeneration
null
null
null
null
q-bio.NC q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neural interfaces using biocompatible scaffolds provide crucial properties for the functional repair of nerve injuries and neurodegenerative diseases, including cell adhesion, structural support, and mass transport. Neural stimulation has also been found to be effective in promoting neural regeneration. This work pro...
[ { "created": "Mon, 28 Jun 2021 01:38:39 GMT", "version": "v1" } ]
2021-06-29
[ [ "Zheng", "Nan", "" ], [ "Fitzpatrick", "Vincent", "" ], [ "Cheng", "Ran", "" ], [ "Shi", "Linli", "" ], [ "Kaplan", "David L.", "" ], [ "Yang", "Chen", "" ] ]
Neural interfaces using biocompatible scaffolds provide crucial properties for the functional repair of nerve injuries and neurodegenerative diseases, including cell adhesion, structural support, and mass transport. Neural stimulation has also been found to be effective in promoting neural regeneration. This work provi...
2403.12987
Bowen Gao
Bowen Gao, Minsi Ren, Yuyan Ni, Yanwen Huang, Bo Qiang, Zhi-Ming Ma, Wei-Ying Ma, Yanyan Lan
Rethinking Specificity in SBDD: Leveraging Delta Score and Energy-Guided Diffusion
null
null
null
null
q-bio.BM cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the field of Structure-based Drug Design (SBDD), deep learning-based generative models have achieved outstanding performance in terms of docking score. However, further study shows that the existing molecular generative methods and docking scores both have lacked consideration in terms of specificity, which means ...
[ { "created": "Mon, 4 Mar 2024 07:40:25 GMT", "version": "v1" } ]
2024-03-21
[ [ "Gao", "Bowen", "" ], [ "Ren", "Minsi", "" ], [ "Ni", "Yuyan", "" ], [ "Huang", "Yanwen", "" ], [ "Qiang", "Bo", "" ], [ "Ma", "Zhi-Ming", "" ], [ "Ma", "Wei-Ying", "" ], [ "Lan", "Yanyan", ...
In the field of Structure-based Drug Design (SBDD), deep learning-based generative models have achieved outstanding performance in terms of docking score. However, further study shows that the existing molecular generative methods and docking scores both have lacked consideration in terms of specificity, which means th...
2312.14489
Yann Sakref
Yann Sakref, Olivier Rivoire
On the exclusion of exponential autocatalysts by sub-exponential autocatalysts
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Selection among autocatalytic species fundamentally depends on their growth law: exponential species, whose number of copies grows exponentially, are mutually exclusive, while sub-exponential ones, whose number of copies grows polynomially, can coexist. Here we consider competitions between autocatalytic species with...
[ { "created": "Fri, 22 Dec 2023 07:35:41 GMT", "version": "v1" } ]
2023-12-25
[ [ "Sakref", "Yann", "" ], [ "Rivoire", "Olivier", "" ] ]
Selection among autocatalytic species fundamentally depends on their growth law: exponential species, whose number of copies grows exponentially, are mutually exclusive, while sub-exponential ones, whose number of copies grows polynomially, can coexist. Here we consider competitions between autocatalytic species with d...
1705.03398
Anvar Shukurov
Anvar Shukurov and Mykhailo Videiko
The evolving system of Trypillian settlements
36 pages, 14 figures, submitted to Journal of Archaeological Science
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Archaeological settlement systems are usually analysed in terms of the relation between the rank of a settlement and its size (Zipf's law). We argue that this approach is unreliable, and can be misleading, in application to archaeological data where the recovery rate of settlements can be low and their size estimates...
[ { "created": "Tue, 9 May 2017 15:47:54 GMT", "version": "v1" } ]
2017-05-10
[ [ "Shukurov", "Anvar", "" ], [ "Videiko", "Mykhailo", "" ] ]
Archaeological settlement systems are usually analysed in terms of the relation between the rank of a settlement and its size (Zipf's law). We argue that this approach is unreliable, and can be misleading, in application to archaeological data where the recovery rate of settlements can be low and their size estimates a...
0910.4253
Andrea Angelini
A. Angelini, A. Amato, G. Bianconi, B. Bassetti, M. Cosentino Lagomarsino
Mean-field methods in evolutionary duplication-innovation-loss models for the genome-level repertoire of protein domains
10 Figures, 2 Tables
null
10.1103/PhysRevE.81.021919
null
q-bio.GN q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a combined mean-field and simulation approach to different models describing the dynamics of classes formed by elements that can appear, disappear or copy themselves. These models, related to a paradigm duplication-innovation model known as Chinese Restaurant Process, are devised to reproduce the scaling b...
[ { "created": "Thu, 22 Oct 2009 17:18:15 GMT", "version": "v1" }, { "created": "Fri, 22 Jan 2010 14:47:46 GMT", "version": "v2" } ]
2015-05-14
[ [ "Angelini", "A.", "" ], [ "Amato", "A.", "" ], [ "Bianconi", "G.", "" ], [ "Bassetti", "B.", "" ], [ "Lagomarsino", "M. Cosentino", "" ] ]
We present a combined mean-field and simulation approach to different models describing the dynamics of classes formed by elements that can appear, disappear or copy themselves. These models, related to a paradigm duplication-innovation model known as Chinese Restaurant Process, are devised to reproduce the scaling beh...