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q-bio/0411050
Suan Li Mai
Mai Suan Li, D.K. Klimov, D. Thirumalai
Finite size effects on thermal denaturation of globular proteins
3 figures. Physical Review Letters (in press)
null
10.1103/PhysRevLett.93.268107
null
q-bio.BM q-bio.QM
null
Finite size effects on the cooperative thermal denaturation of proteins are considered. A dimensionless measure of cooperativity, Omega, scales as N^zeta, where N is the number of amino acids. Surprisingly, we find that zeta is universal with zeta = 1 + gamma, where the exponent gamma characterizes the divergence of ...
[ { "created": "Sun, 28 Nov 2004 15:44:42 GMT", "version": "v1" } ]
2009-11-10
[ [ "Li", "Mai Suan", "" ], [ "Klimov", "D. K.", "" ], [ "Thirumalai", "D.", "" ] ]
Finite size effects on the cooperative thermal denaturation of proteins are considered. A dimensionless measure of cooperativity, Omega, scales as N^zeta, where N is the number of amino acids. Surprisingly, we find that zeta is universal with zeta = 1 + gamma, where the exponent gamma characterizes the divergence of th...
1805.04616
Maxwell Zimmerman
Maxwell I. Zimmerman, Justin R. Porter, Xianqiang Sun, Roseane R. Silva, and Gregory R. Bowman
Choice of adaptive sampling strategy impacts state discovery, transition probabilities, and the apparent mechanism of conformational changes
null
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Interest in equilibrium-based sampling methods has grown with recent advances in computational hardware and Markov state modeling (MSM) methods, yet outstanding questions remain that hinder widespread adoption. Namely, how do sampling strategies explore conformational space and how might this influence predictions? H...
[ { "created": "Fri, 11 May 2018 23:12:11 GMT", "version": "v1" } ]
2018-05-15
[ [ "Zimmerman", "Maxwell I.", "" ], [ "Porter", "Justin R.", "" ], [ "Sun", "Xianqiang", "" ], [ "Silva", "Roseane R.", "" ], [ "Bowman", "Gregory R.", "" ] ]
Interest in equilibrium-based sampling methods has grown with recent advances in computational hardware and Markov state modeling (MSM) methods, yet outstanding questions remain that hinder widespread adoption. Namely, how do sampling strategies explore conformational space and how might this influence predictions? Her...
1711.07473
Kye-Ryong Sin
Hyon-Hui Ri, Yong-A Choe, Jong-Ho Yun, Kye-Ryong Sin
Determination of carbohydrates in infant milk powders by ultra-performance liquid chromatography with evaporative light scattering detector and BEH HILIC column
null
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possibility of carbohydrate separation in BEH HILIC (Ethylene Bridged Hybride, Hydrophilic Interaction Liquid Chromatography) column was studied by ultra-performance liquid chromatography (UPLC) with evaporative light scattering detector (ELSD) and mobile phase containing amine compounds as modifiers. The chromat...
[ { "created": "Mon, 20 Nov 2017 08:23:41 GMT", "version": "v1" } ]
2017-11-22
[ [ "Ri", "Hyon-Hui", "" ], [ "Choe", "Yong-A", "" ], [ "Yun", "Jong-Ho", "" ], [ "Sin", "Kye-Ryong", "" ] ]
The possibility of carbohydrate separation in BEH HILIC (Ethylene Bridged Hybride, Hydrophilic Interaction Liquid Chromatography) column was studied by ultra-performance liquid chromatography (UPLC) with evaporative light scattering detector (ELSD) and mobile phase containing amine compounds as modifiers. The chromatog...
1701.07379
Jose Vanterler Da Costa Sousa
Jos\'e Vanterler da Costa Sousa, Edmundo Capelas de Oliveira and Luiz Alberto Magna
Fractional Calculus and the ESR test
19 pages and 2 figures
null
null
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a partial differential equation associated with a mathematical model describing the concentration of nutrients in blood which interferes directly on the erythrocyte sedimentation rate in the case of an average fluid velocity equal to zero. Introducing the fractional derivative in the Caputo sense, we prop...
[ { "created": "Thu, 29 Dec 2016 13:52:46 GMT", "version": "v1" } ]
2017-01-27
[ [ "Sousa", "José Vanterler da Costa", "" ], [ "de Oliveira", "Edmundo Capelas", "" ], [ "Magna", "Luiz Alberto", "" ] ]
We consider a partial differential equation associated with a mathematical model describing the concentration of nutrients in blood which interferes directly on the erythrocyte sedimentation rate in the case of an average fluid velocity equal to zero. Introducing the fractional derivative in the Caputo sense, we propos...
1810.11818
Konstantin Blyuss
F. Fatehi, Y.N. Kyrychko, R. Molchanov, K.B. Blyuss
Bifurcations and multi-stability in a model of cytokine-mediated autoimmunity
26 pages, 10 figures, accepted for publication in Int. J. Bif. Chaos
null
10.1142/S0218127419500342
null
q-bio.QM nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper investigates the dynamics of immune response and autoimmunity with particular emphasis on the role of regulatory T cells (Tregs), T cells with different activation thresholds, and cytokines in mediating T cell activity. Analysis of the steady states yields parameter regions corresponding to regimes of norm...
[ { "created": "Sun, 28 Oct 2018 14:28:22 GMT", "version": "v1" } ]
2019-05-01
[ [ "Fatehi", "F.", "" ], [ "Kyrychko", "Y. N.", "" ], [ "Molchanov", "R.", "" ], [ "Blyuss", "K. B.", "" ] ]
This paper investigates the dynamics of immune response and autoimmunity with particular emphasis on the role of regulatory T cells (Tregs), T cells with different activation thresholds, and cytokines in mediating T cell activity. Analysis of the steady states yields parameter regions corresponding to regimes of normal...
1302.5484
Marisa Eisenberg
Marisa Eisenberg
Input-output equivalence and identifiability: some simple generalizations of the differential algebra approach
Notes on the relationship between input-output equivalence and structural identifiability
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we give an overview of the differential algebra approach to identifiability, and then note a very simple observation about input-output equivalence and identifiability, that describes the identifiability equivalence between input-output equivalent models. We then give several simple consequences of thi...
[ { "created": "Fri, 22 Feb 2013 05:01:53 GMT", "version": "v1" }, { "created": "Mon, 19 Aug 2019 05:43:42 GMT", "version": "v2" } ]
2019-08-20
[ [ "Eisenberg", "Marisa", "" ] ]
In this paper, we give an overview of the differential algebra approach to identifiability, and then note a very simple observation about input-output equivalence and identifiability, that describes the identifiability equivalence between input-output equivalent models. We then give several simple consequences of this ...
1410.8564
John Drake
John M. Drake, RajReni B. Kaul, Laura Alexander, Suzanne M. O'Regan, Andrew M. Kramer, J. Tomlin Pulliam, Matthew J. Ferrari, and Andrew W. Park
Ebola cases and health system demand in Liberia
Includes supplement
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In 2014, a major epidemic of human Ebola virus disease emerged in West Africa, where human-to-human transmission has now been been sustained for greater than 10 months. In the summer of 2014, there was great uncertainty about the answers to several key policy questions concerning the path to containment. In recent ye...
[ { "created": "Thu, 30 Oct 2014 21:29:17 GMT", "version": "v1" } ]
2014-11-03
[ [ "Drake", "John M.", "" ], [ "Kaul", "RajReni B.", "" ], [ "Alexander", "Laura", "" ], [ "O'Regan", "Suzanne M.", "" ], [ "Kramer", "Andrew M.", "" ], [ "Pulliam", "J. Tomlin", "" ], [ "Ferrari", "Matthew J.", ...
In 2014, a major epidemic of human Ebola virus disease emerged in West Africa, where human-to-human transmission has now been been sustained for greater than 10 months. In the summer of 2014, there was great uncertainty about the answers to several key policy questions concerning the path to containment. In recent year...
2105.08944
Jacob Russin
Jacob Russin, Maryam Zolfaghar, Seongmin A. Park, Erie Boorman, Randall C. O'Reilly
Complementary Structure-Learning Neural Networks for Relational Reasoning
7 pages, 4 figures, Accepted to CogSci 2021 for poster presentation
null
null
null
q-bio.NC cs.LG
http://creativecommons.org/licenses/by/4.0/
The neural mechanisms supporting flexible relational inferences, especially in novel situations, are a major focus of current research. In the complementary learning systems framework, pattern separation in the hippocampus allows rapid learning in novel environments, while slower learning in neocortex accumulates sma...
[ { "created": "Wed, 19 May 2021 06:25:21 GMT", "version": "v1" } ]
2021-05-20
[ [ "Russin", "Jacob", "" ], [ "Zolfaghar", "Maryam", "" ], [ "Park", "Seongmin A.", "" ], [ "Boorman", "Erie", "" ], [ "O'Reilly", "Randall C.", "" ] ]
The neural mechanisms supporting flexible relational inferences, especially in novel situations, are a major focus of current research. In the complementary learning systems framework, pattern separation in the hippocampus allows rapid learning in novel environments, while slower learning in neocortex accumulates small...
1501.03463
Andrew Leifer
Jeffrey P. Nguyen and Frederick B. Shipley and Ashley N. Linder and George S. Plummer and Joshua W. Shaevitz and Andrew M. Leifer
Whole-brain calcium imaging with cellular resolution in freely behaving C. elegans
33 pages, 6 main figures, 7 supplementary figures
null
10.1073/pnas.1507110112
null
q-bio.NC physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ability to acquire large-scale recordings of neuronal activity in awake and unrestrained animals poses a major challenge for studying neural coding of animal behavior. We present a new instrument capable of recording intracellular calcium transients from every neuron in the head of a freely behaving C. elegans wi...
[ { "created": "Wed, 14 Jan 2015 20:07:59 GMT", "version": "v1" } ]
2015-12-31
[ [ "Nguyen", "Jeffrey P.", "" ], [ "Shipley", "Frederick B.", "" ], [ "Linder", "Ashley N.", "" ], [ "Plummer", "George S.", "" ], [ "Shaevitz", "Joshua W.", "" ], [ "Leifer", "Andrew M.", "" ] ]
The ability to acquire large-scale recordings of neuronal activity in awake and unrestrained animals poses a major challenge for studying neural coding of animal behavior. We present a new instrument capable of recording intracellular calcium transients from every neuron in the head of a freely behaving C. elegans with...
1906.03660
Margaret Cheung
Andrei G. Gasic, Mayank M. Boob, Maxim B. Prigozhin, Dirar Homouz, Caleb M. Daugherty, Martin Gruebele, Margaret S. Cheung
Critical phenomena in the temperature-pressure-crowding phase diagram of a protein
5 figures
Phys. Rev. X 9, 041035 (2019)
10.1103/PhysRevX.9.041035
null
q-bio.BM physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the cell, proteins fold and perform complex functions through global structural rearrangements. Function requires a protein to be at the brink of stability to be susceptible to small environmental fluctuations, yet stable enough to maintain structural integrity. These apparently conflicting behaviors are exhibited...
[ { "created": "Sun, 9 Jun 2019 15:37:04 GMT", "version": "v1" } ]
2020-11-17
[ [ "Gasic", "Andrei G.", "" ], [ "Boob", "Mayank M.", "" ], [ "Prigozhin", "Maxim B.", "" ], [ "Homouz", "Dirar", "" ], [ "Daugherty", "Caleb M.", "" ], [ "Gruebele", "Martin", "" ], [ "Cheung", "Margaret S.", ...
In the cell, proteins fold and perform complex functions through global structural rearrangements. Function requires a protein to be at the brink of stability to be susceptible to small environmental fluctuations, yet stable enough to maintain structural integrity. These apparently conflicting behaviors are exhibited b...
0904.1959
Emilio Hernandez-Garcia
E. Tew Kai (1), V. Rossi (2), J. Sudre (2), H. Weimerskirch (3), C. Lopez (4), E. Hernandez-Garcia (4), F. Marsac (1), and V. Garcon (2) ((1) THETIS, Sete; (2) LEGOS, Toulouse; (3) C.E.B. Chize; (4) IFISC, Palma de Mallorca)
Top marine predators track Lagrangian coherent structures
null
Proceedings of the National Academy of Sciences of the USA (PNAS) 106, 8245-8250 (2009)
10.1073/pnas.0811034106
null
q-bio.PE nlin.CD physics.ao-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Meso- and submesoscales (fronts, eddies, filaments) in surface ocean flow have a crucial influence on marine ecosystems. Their dynamics partly control the foraging behaviour and the displacement of marine top predators (tuna, birds, turtles, and cetaceans). In this work we focus on the role of submesoscale structures...
[ { "created": "Mon, 13 Apr 2009 15:52:30 GMT", "version": "v1" } ]
2009-05-25
[ [ "Kai", "E. Tew", "" ], [ "Rossi", "V.", "" ], [ "Sudre", "J.", "" ], [ "Weimerskirch", "H.", "" ], [ "Lopez", "C.", "" ], [ "Hernandez-Garcia", "E.", "" ], [ "Marsac", "F.", "" ], [ "Garcon", "V...
Meso- and submesoscales (fronts, eddies, filaments) in surface ocean flow have a crucial influence on marine ecosystems. Their dynamics partly control the foraging behaviour and the displacement of marine top predators (tuna, birds, turtles, and cetaceans). In this work we focus on the role of submesoscale structures i...
1308.5548
Pierre Sens
Serge Dmitrieff, and Pierre Sens
Transient domain formation in membrane-bound organelles undergoing maturation
7 pages, 6 figures
null
10.1103/PhysRevE.88.062704
null
q-bio.SC cond-mat.soft physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The membrane components of cellular organelles have been shown to segregate into domains as the result of biochemical maturation. We propose that the dynamical competition between maturation and lateral segregation of membrane components regulates domain formation. We study a two- component fluid membrane in which en...
[ { "created": "Mon, 26 Aug 2013 11:53:39 GMT", "version": "v1" } ]
2015-06-17
[ [ "Dmitrieff", "Serge", "" ], [ "Sens", "Pierre", "" ] ]
The membrane components of cellular organelles have been shown to segregate into domains as the result of biochemical maturation. We propose that the dynamical competition between maturation and lateral segregation of membrane components regulates domain formation. We study a two- component fluid membrane in which enzy...
2011.05304
Ishan Barman
Santosh Kumar Paidi, Joel Rodriguez Troncoso, Piyush Raj, Paola Monterroso Diaz, David E. Lee, Narasimhan Rajaram, Ishan Barman
Label-free Raman spectroscopy and machine learning enables sensitive evaluation of differential response to immunotherapy
null
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by-nc-nd/4.0/
Cancer immunotherapy provides durable clinical benefit in only a small fraction of patients, particularly due to a lack of reliable biomarkers for accurate prediction of treatment outcomes and evaluation of response. Here, we demonstrate the first application of label-free Raman spectroscopy for elucidating biochemic...
[ { "created": "Tue, 10 Nov 2020 18:39:14 GMT", "version": "v1" } ]
2020-11-11
[ [ "Paidi", "Santosh Kumar", "" ], [ "Troncoso", "Joel Rodriguez", "" ], [ "Raj", "Piyush", "" ], [ "Diaz", "Paola Monterroso", "" ], [ "Lee", "David E.", "" ], [ "Rajaram", "Narasimhan", "" ], [ "Barman", "Ishan"...
Cancer immunotherapy provides durable clinical benefit in only a small fraction of patients, particularly due to a lack of reliable biomarkers for accurate prediction of treatment outcomes and evaluation of response. Here, we demonstrate the first application of label-free Raman spectroscopy for elucidating biochemical...
1204.5517
William Holmes
Benjamin Lin and William R. Holmes and ChiaoChun Wang and Tasuku Ueno and Andrew Harwell and Leah Edelstein-Keshet and Takanari Inoue and Andre Levchenko and
Synthetic spatially graded Rac activation drives directed cell polarization and locomotion
null
null
10.1073/pnas.1210295109
null
q-bio.MN q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Migrating cells possess intracellular gradients of Rho GTPases, but it is unknown whether these shallow gradients themselves can induce motility. Here we describe a new method to present cells with induced linear gradients of active, endogenous Rac without receptor activation. Gradients as low as 15% were sufficient ...
[ { "created": "Wed, 25 Apr 2012 00:17:58 GMT", "version": "v1" } ]
2015-06-04
[ [ "Lin", "Benjamin", "" ], [ "Holmes", "William R.", "" ], [ "Wang", "ChiaoChun", "" ], [ "Ueno", "Tasuku", "" ], [ "Harwell", "Andrew", "" ], [ "Edelstein-Keshet", "Leah", "" ], [ "Inoue", "Takanari", "" ]...
Migrating cells possess intracellular gradients of Rho GTPases, but it is unknown whether these shallow gradients themselves can induce motility. Here we describe a new method to present cells with induced linear gradients of active, endogenous Rac without receptor activation. Gradients as low as 15% were sufficient to...
1610.03986
Wolfgang Halter
Wolfgang Halter, Jan Maximilian Montenbruck and Frank Allg\"ower
Geometric stability considerations of the ribosome flow model with pool
Published in the Proceedings of the 22nd International Symposium on the Mathematical Theory of Networks and Systems, 2016, http://hdl.handle.net/11299/181518
null
null
null
q-bio.SC math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In order to better understand the process of gene translation, the ribosome flow model (RFM) with pool was introduced recently. This model describes the movement of several ribosomes along an mRNA template and simultaneously captures the dynamics of the finite pool of ribosomes. Studying this system with respect to t...
[ { "created": "Thu, 13 Oct 2016 09:13:17 GMT", "version": "v1" } ]
2016-10-14
[ [ "Halter", "Wolfgang", "" ], [ "Montenbruck", "Jan Maximilian", "" ], [ "Allgöwer", "Frank", "" ] ]
In order to better understand the process of gene translation, the ribosome flow model (RFM) with pool was introduced recently. This model describes the movement of several ribosomes along an mRNA template and simultaneously captures the dynamics of the finite pool of ribosomes. Studying this system with respect to the...
q-bio/0502026
Mazza
Martin Gander, Christian Mazza, Hansklaus Rummler
Stochastic gene expression in switching environments
14 pages, 5 figures
null
null
null
q-bio.PE q-bio.CB
null
We study a stochastic model proposed recently in the genetic literature to explain the heterogeneity of cell populations or of gene products. Cells are located in two colonies, whose sizes fluctuate as birth and migration processes in switching environments. We prove that there is a range of parameters where heteroge...
[ { "created": "Tue, 22 Feb 2005 13:56:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gander", "Martin", "" ], [ "Mazza", "Christian", "" ], [ "Rummler", "Hansklaus", "" ] ]
We study a stochastic model proposed recently in the genetic literature to explain the heterogeneity of cell populations or of gene products. Cells are located in two colonies, whose sizes fluctuate as birth and migration processes in switching environments. We prove that there is a range of parameters where heterogene...
2110.13909
Ghazal ArabiDarrehDor
Ghazal ArabiDarrehDor, Ali Tivay, Chris Meador, George C. Kramer, Jin-Oh Hahn, and Jose Salinas
Mathematical Modeling, In-Human Evaluation and Analysis of Volume Kinetics and Kidney Function after Burn Injury and Resuscitation
24 pages The final version of this paper has been accepted for publication in the IEEE Journal of Transactions on Biomedical Engineering (2021) and is available for early access at https://ieeexplore.ieee.org/document/9478222
null
10.1109/TBME.2021.3094515
null
q-bio.TO
http://creativecommons.org/licenses/by/4.0/
Existing burn resuscitation protocols exhibit large variability in treatment efficacy. Hence, they must be further optimized based on comprehensive knowledge of burn pathophysiology. A physics-based mathematical model that can replicate physiological responses in diverse burn patients can serve as an attractive basis...
[ { "created": "Sun, 24 Oct 2021 21:40:21 GMT", "version": "v1" } ]
2021-10-28
[ [ "ArabiDarrehDor", "Ghazal", "" ], [ "Tivay", "Ali", "" ], [ "Meador", "Chris", "" ], [ "Kramer", "George C.", "" ], [ "Hahn", "Jin-Oh", "" ], [ "Salinas", "Jose", "" ] ]
Existing burn resuscitation protocols exhibit large variability in treatment efficacy. Hence, they must be further optimized based on comprehensive knowledge of burn pathophysiology. A physics-based mathematical model that can replicate physiological responses in diverse burn patients can serve as an attractive basis t...
1906.01094
Cecilia Jarne Dr
Cecilia Jarne and Rodrigo Laje
Exploring weight initialization, diversity of solutions, and degradation in recurrent neural networks trained for temporal and decision-making tasks
null
null
null
null
q-bio.NC cs.NE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recurrent Neural Networks (RNNs) are frequently used to model aspects of brain function and structure. In this work, we trained small fully-connected RNNs to perform temporal and flow control tasks with time-varying stimuli. Our results show that different RNNs can solve the same task by converging to different under...
[ { "created": "Mon, 3 Jun 2019 21:56:48 GMT", "version": "v1" }, { "created": "Fri, 13 Sep 2019 16:23:44 GMT", "version": "v2" }, { "created": "Tue, 1 Oct 2019 14:18:27 GMT", "version": "v3" }, { "created": "Mon, 21 Dec 2020 14:04:01 GMT", "version": "v4" }, { "cre...
2023-06-29
[ [ "Jarne", "Cecilia", "" ], [ "Laje", "Rodrigo", "" ] ]
Recurrent Neural Networks (RNNs) are frequently used to model aspects of brain function and structure. In this work, we trained small fully-connected RNNs to perform temporal and flow control tasks with time-varying stimuli. Our results show that different RNNs can solve the same task by converging to different underly...
1607.04064
Michael Margaliot
Yoram Zarai and Michael Margaliot and Tamir Tuller
On the Ribosomal Density that Maximizes Protein Translation Rate
null
null
10.1371/journal.pone.0166481
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
During mRNA translation, several ribosomes attach to the same mRNA molecule simultaneously translating it into a protein. This pipelining increases the protein production rate. A natural and important question is what ribosomal density maximizes the protein production rate. Using mathematical models of ribosome flow ...
[ { "created": "Thu, 14 Jul 2016 10:13:44 GMT", "version": "v1" } ]
2017-02-08
[ [ "Zarai", "Yoram", "" ], [ "Margaliot", "Michael", "" ], [ "Tuller", "Tamir", "" ] ]
During mRNA translation, several ribosomes attach to the same mRNA molecule simultaneously translating it into a protein. This pipelining increases the protein production rate. A natural and important question is what ribosomal density maximizes the protein production rate. Using mathematical models of ribosome flow al...
2012.09723
Hsin-Yu Lai
Hsin-Yu Lai, Gladynel Saavedra-Pena, Charles G. Sodini, Thomas Heldt, Vivienne Sze
App-based saccade latency and error determination across the adult age spectrum
11 pages, 16 figures, journal
null
null
null
q-bio.NC eess.IV eess.SP q-bio.QM
http://creativecommons.org/licenses/by/4.0/
We aid in neurocognitive monitoring outside the hospital environment by enabling app-based measurements of visual reaction time (saccade latency) and error rate in a cohort of subjects spanning the adult age spectrum. Methods: We developed an iOS app to record subjects with the frontal camera during pro- and anti-sac...
[ { "created": "Mon, 14 Dec 2020 02:02:02 GMT", "version": "v1" } ]
2020-12-18
[ [ "Lai", "Hsin-Yu", "" ], [ "Saavedra-Pena", "Gladynel", "" ], [ "Sodini", "Charles G.", "" ], [ "Heldt", "Thomas", "" ], [ "Sze", "Vivienne", "" ] ]
We aid in neurocognitive monitoring outside the hospital environment by enabling app-based measurements of visual reaction time (saccade latency) and error rate in a cohort of subjects spanning the adult age spectrum. Methods: We developed an iOS app to record subjects with the frontal camera during pro- and anti-sacca...
2310.07442
Andrea Radici
Andrea Radici, Daniele Bevacqua, Leonardo Miele, Davide Martinetti
Network-thinking to optimize surveillance and control of crop parasites. A review
21 pages, 3 figures
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
Increasing cultivated lands, crop homogenization and global food trade have fostered the spread of crop pests and diseases. Optimizing crop protection is urgently needed to ensure food safety. One aspect of crop protection is surveillance, which focuses on the early detection of a parasite, and control, aiming to fig...
[ { "created": "Wed, 11 Oct 2023 12:47:29 GMT", "version": "v1" } ]
2023-10-12
[ [ "Radici", "Andrea", "" ], [ "Bevacqua", "Daniele", "" ], [ "Miele", "Leonardo", "" ], [ "Martinetti", "Davide", "" ] ]
Increasing cultivated lands, crop homogenization and global food trade have fostered the spread of crop pests and diseases. Optimizing crop protection is urgently needed to ensure food safety. One aspect of crop protection is surveillance, which focuses on the early detection of a parasite, and control, aiming to fight...
1403.4479
Claus Bornemann PhD
Claus Bornemann
Virus-Encoded Ribonucleotide Reductases
3 pages, 39 references
null
null
null
q-bio.BM q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Ribonucleotide reductases are encoded by many viruses, but without other enzymes of nucleotide metabolism of no obvious use. A look at the enzymes' molecular properties and their possible mutator action may give clues.
[ { "created": "Tue, 18 Mar 2014 14:41:26 GMT", "version": "v1" } ]
2014-03-19
[ [ "Bornemann", "Claus", "" ] ]
Ribonucleotide reductases are encoded by many viruses, but without other enzymes of nucleotide metabolism of no obvious use. A look at the enzymes' molecular properties and their possible mutator action may give clues.
2408.05420
J Gregory Caporaso
Isaiah Raspet, Elizabeth Gehret, Chloe Herman, Jeff Meilander, Andrew Manley, Anthony Simard, Evan Bolyen, J. Gregory Caporaso
Facilitating bootstrapped and rarefaction-based microbiome diversity analysis with q2-boots
5 pages, 1 figure, 1 supplementary table
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by-nc-nd/4.0/
Background: We present q2-boots, a QIIME 2 plugin that facilitates bootstrapped and rarefaction-based microbiome diversity analysis. This plugin provides eight new actions that allow users to apply any of thirty different alpha diversity metrics and twenty-two beta diversity metrics to bootstrapped or rarefied featur...
[ { "created": "Sat, 10 Aug 2024 03:12:15 GMT", "version": "v1" } ]
2024-08-13
[ [ "Raspet", "Isaiah", "" ], [ "Gehret", "Elizabeth", "" ], [ "Herman", "Chloe", "" ], [ "Meilander", "Jeff", "" ], [ "Manley", "Andrew", "" ], [ "Simard", "Anthony", "" ], [ "Bolyen", "Evan", "" ], [ ...
Background: We present q2-boots, a QIIME 2 plugin that facilitates bootstrapped and rarefaction-based microbiome diversity analysis. This plugin provides eight new actions that allow users to apply any of thirty different alpha diversity metrics and twenty-two beta diversity metrics to bootstrapped or rarefied feature ...
1502.03201
Yann Ponty
Jozef Hale\v{s}, J\'an Ma\v{n}uch (UBC-Computer Science), Yann Ponty (LIX, AMIB), Ladislav Stacho
Combinatorial RNA Design: Designability and Structure-Approximating Algorithm
CPM - 26th Annual Symposium on Combinatorial Pattern Matching, Jun 2015, Ischia Island, Italy. LNCS, 2015
null
null
null
q-bio.QM cs.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we consider the Combinatorial RNA Design problem, a minimal instance of the RNA design problem which aims at finding a sequence that admits a given target as its unique base pair maximizing structure. We provide complete characterizations for the structures that can be designed using restricted alphabet...
[ { "created": "Wed, 11 Feb 2015 06:47:23 GMT", "version": "v1" }, { "created": "Fri, 19 Jun 2015 08:34:03 GMT", "version": "v2" } ]
2015-06-22
[ [ "Haleš", "Jozef", "", "UBC-Computer Science" ], [ "Maňuch", "Ján", "", "UBC-Computer Science" ], [ "Ponty", "Yann", "", "LIX, AMIB" ], [ "Stacho", "Ladislav", "" ] ]
In this work, we consider the Combinatorial RNA Design problem, a minimal instance of the RNA design problem which aims at finding a sequence that admits a given target as its unique base pair maximizing structure. We provide complete characterizations for the structures that can be designed using restricted alphabets....
2303.10724
Josinaldo Menezes
J. Menezes
Mobility restrictions in response to local epidemic outbreaks in rock-paper-scissors models
11 pages, 12 figures
Journal of Physics: Complex. 5, 015018 (2024)
10.1088/2632-072X/ad2d5b
null
q-bio.PE nlin.AO nlin.PS physics.bio-ph q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a three-species cyclic model whose organisms are vulnerable to contamination with an infectious disease which propagates person-to-person. We consider that individuals of one species perform an evolutionary self-preservation strategy by reducing the mobility rate to minimise infection risk whenever an epidem...
[ { "created": "Sun, 19 Mar 2023 17:43:28 GMT", "version": "v1" } ]
2024-06-05
[ [ "Menezes", "J.", "" ] ]
We study a three-species cyclic model whose organisms are vulnerable to contamination with an infectious disease which propagates person-to-person. We consider that individuals of one species perform an evolutionary self-preservation strategy by reducing the mobility rate to minimise infection risk whenever an epidemic...
2401.14665
Yipin Lei
Yipin Lei, Xu Wang, Meng Fang, Han Li, Xiang Li, Jianyang Zeng
PepGB: Facilitating peptide drug discovery via graph neural networks
null
null
null
null
q-bio.BM cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Peptides offer great biomedical potential and serve as promising drug candidates. Currently, the majority of approved peptide drugs are directly derived from well-explored natural human peptides. It is quite necessary to utilize advanced deep learning techniques to identify novel peptide drugs in the vast, unexplored...
[ { "created": "Fri, 26 Jan 2024 06:13:09 GMT", "version": "v1" } ]
2024-01-29
[ [ "Lei", "Yipin", "" ], [ "Wang", "Xu", "" ], [ "Fang", "Meng", "" ], [ "Li", "Han", "" ], [ "Li", "Xiang", "" ], [ "Zeng", "Jianyang", "" ] ]
Peptides offer great biomedical potential and serve as promising drug candidates. Currently, the majority of approved peptide drugs are directly derived from well-explored natural human peptides. It is quite necessary to utilize advanced deep learning techniques to identify novel peptide drugs in the vast, unexplored b...
2101.08731
Tomas Barta
Tomas Barta and Lubomir Kostal
Regular spiking in high conductance states: the essential role of inhibition
null
Phys. Rev. E 103, 022408 (2021)
10.1103/PhysRevE.103.022408
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Strong inhibitory input to neurons, which occurs in balanced states of neural networks, increases synaptic current fluctuations. This has led to the assumption that inhibition contributes to the high spike-firing irregularity observed in vivo. We used single compartment neuronal models with time-correlated (due to sy...
[ { "created": "Thu, 21 Jan 2021 17:14:25 GMT", "version": "v1" }, { "created": "Thu, 4 Feb 2021 14:50:11 GMT", "version": "v2" }, { "created": "Thu, 18 Feb 2021 16:30:18 GMT", "version": "v3" } ]
2021-02-19
[ [ "Barta", "Tomas", "" ], [ "Kostal", "Lubomir", "" ] ]
Strong inhibitory input to neurons, which occurs in balanced states of neural networks, increases synaptic current fluctuations. This has led to the assumption that inhibition contributes to the high spike-firing irregularity observed in vivo. We used single compartment neuronal models with time-correlated (due to syna...
2106.09444
Birgitta Dresp-Langley
Birgitta Dresp-Langley, JM Wandeto
Unsupervised classification of cell imaging data using the quantization error in a Self Organizing Map
arXiv admin note: substantial text overlap with arXiv:2011.05209, arXiv:2011.03970
In HR Arabnia, K Ferens, D de la Fuente, EB Kozerenko, JA Olivas Varela, FG Tinetti (Eds.), Transactions on Computational Science and Computational Intelligence. Springer-Nature, 2021, pp. 201-210
10.1007/978-3-030-70296-0_16
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This study exploits previously demonstrated properties such as sensitivity to the spatial extent and the intensity of local image contrast of the quantization error in the output of a Self Organizing Map (SOM QE). Here, the SOM QE is applied to double color staining based cell viability data in 96 image simulations. ...
[ { "created": "Thu, 17 Jun 2021 12:53:55 GMT", "version": "v1" } ]
2021-10-18
[ [ "Dresp-Langley", "Birgitta", "" ], [ "Wandeto", "JM", "" ] ]
This study exploits previously demonstrated properties such as sensitivity to the spatial extent and the intensity of local image contrast of the quantization error in the output of a Self Organizing Map (SOM QE). Here, the SOM QE is applied to double color staining based cell viability data in 96 image simulations. Th...
1702.00094
Masaki Ogura Dr.
Masaki Ogura, Masashi Wakaiki, Harvey Rubin, Victor M. Preciado
Delayed Bet-Hedging Resilience Strategies Under Environmental Fluctuations
null
null
10.1103/PhysRevE.95.052404
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many biological populations, such as bacterial colonies, have developed through evolution a protection mechanism, called bet-hedging, to increase their probability of survival under stressful environmental fluctutation. In this context, the concept of preadaptation refers to a common type of bet-hedging protection st...
[ { "created": "Wed, 1 Feb 2017 00:41:23 GMT", "version": "v1" }, { "created": "Fri, 21 Apr 2017 01:57:52 GMT", "version": "v2" } ]
2017-05-24
[ [ "Ogura", "Masaki", "" ], [ "Wakaiki", "Masashi", "" ], [ "Rubin", "Harvey", "" ], [ "Preciado", "Victor M.", "" ] ]
Many biological populations, such as bacterial colonies, have developed through evolution a protection mechanism, called bet-hedging, to increase their probability of survival under stressful environmental fluctutation. In this context, the concept of preadaptation refers to a common type of bet-hedging protection stra...
1607.02581
Raul Isea
Raul Isea
A Potential Correlation Between the Temperature of the Pacific Ocean and Data from Google Trends May Yield a Warning Sign for the Outbreak of Zika
3 pages, 2 figures, Open Access
American Journal of Social Sciences (2016), Vol. 4, No. 2, pp. 12-14
null
null
q-bio.PE
http://creativecommons.org/publicdomain/zero/1.0/
There has been a large number of reported cases of the occurrence of Zika in different countries in 2016 and it is necessary to develop an early warning system to initiate preventive campaigns against the disease. A potential early warning system based on the rise in ocean temperature of the Pacific Ni\~no Index is p...
[ { "created": "Sat, 9 Jul 2016 07:58:46 GMT", "version": "v1" } ]
2016-07-12
[ [ "Isea", "Raul", "" ] ]
There has been a large number of reported cases of the occurrence of Zika in different countries in 2016 and it is necessary to develop an early warning system to initiate preventive campaigns against the disease. A potential early warning system based on the rise in ocean temperature of the Pacific Ni\~no Index is pro...
2004.06021
Ivan Cherednik
Ivan Cherednik
Momentum managing epidemic spread and Bessel functions
54 pages, 29 figures, v5: the two-phase formula for the spread was added covering practically the whole periods of Covid-19 in many countries; v6: the second waves were considered, editing; v7: some data refreshed, Journal reference added
Chaos, Solitons & Fractals, Volume 139, October 2020, 110234
10.1016/j.chaos.2020.110234
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Starting with the power law for the total number of detected infections, we propose differential equations describing the effect of momentum epidemic management. Our 2-phase formula matches very well the curves of the total numbers of the Covid-19 infections in many countries; the first phase is described by Bessel f...
[ { "created": "Mon, 13 Apr 2020 15:54:31 GMT", "version": "v1" }, { "created": "Wed, 15 Apr 2020 16:19:53 GMT", "version": "v2" }, { "created": "Mon, 20 Apr 2020 15:36:56 GMT", "version": "v3" }, { "created": "Thu, 7 May 2020 10:18:50 GMT", "version": "v4" }, { "cr...
2020-10-12
[ [ "Cherednik", "Ivan", "" ] ]
Starting with the power law for the total number of detected infections, we propose differential equations describing the effect of momentum epidemic management. Our 2-phase formula matches very well the curves of the total numbers of the Covid-19 infections in many countries; the first phase is described by Bessel fun...
2311.16784
Giuseppe Tronci
Charles Brooker, Giuseppe Tronci
Infection-responsivity of Commercial Dressings Through Halochromic Drop-casting
6 pages, 3 figures, 2 tables. Accepted in AIP conference proceedings
null
null
null
q-bio.TO
http://creativecommons.org/licenses/by/4.0/
Infection control remains one of the most challenging tasks in wound care, due to growing antimicrobial resistance and ineffective infection diagnostic tools at the point-of-care. To integrate therapeutic wound dressings with wound monitoring capability at the point-of-care to enable informed clinical decision-making...
[ { "created": "Tue, 28 Nov 2023 13:47:22 GMT", "version": "v1" } ]
2023-11-29
[ [ "Brooker", "Charles", "" ], [ "Tronci", "Giuseppe", "" ] ]
Infection control remains one of the most challenging tasks in wound care, due to growing antimicrobial resistance and ineffective infection diagnostic tools at the point-of-care. To integrate therapeutic wound dressings with wound monitoring capability at the point-of-care to enable informed clinical decision-making, ...
q-bio/0502006
Ophir Flomenbom
Ophir Flomenbom, Joseph Klafter, and Attila Szabo
What can one learn from two-state single molecule trajectories?
Biophys. J., in press (2005)
Biophys. J. 88, 3780-3783 (2005)
10.1529/biophysj.104.055905
null
q-bio.SC q-bio.QM
null
A time trajectory of an observable that fluctuates between two values (say, on and off), stemming from some unknown multi-substate kinetic scheme, is the output of many single molecule experiments. Here we show that when all successive waiting times along the trajectory are uncorrelated the on and the off waiting tim...
[ { "created": "Tue, 8 Feb 2005 00:56:08 GMT", "version": "v1" } ]
2010-08-16
[ [ "Flomenbom", "Ophir", "" ], [ "Klafter", "Joseph", "" ], [ "Szabo", "Attila", "" ] ]
A time trajectory of an observable that fluctuates between two values (say, on and off), stemming from some unknown multi-substate kinetic scheme, is the output of many single molecule experiments. Here we show that when all successive waiting times along the trajectory are uncorrelated the on and the off waiting time ...
2108.02810
Sujit Datta
Daniel B. Amchin, Jenna A. Ott, Tapomoy Bhattacharjee, Sujit S. Datta
Influence of confinement on the spreading of bacterial populations
null
PLoS Computational Biology, 18, e1010063 (2022)
10.1371/journal.pcbi.1010063
null
q-bio.PE cond-mat.soft nlin.PS physics.bio-ph q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spreading of bacterial populations is central to processes in agriculture, the environment, and medicine. However, existing models of spreading typically focus on cells in unconfined settings--despite the fact that many bacteria inhabit complex and crowded environments, such as soils, sediments, and biological ti...
[ { "created": "Thu, 5 Aug 2021 18:53:51 GMT", "version": "v1" } ]
2022-06-07
[ [ "Amchin", "Daniel B.", "" ], [ "Ott", "Jenna A.", "" ], [ "Bhattacharjee", "Tapomoy", "" ], [ "Datta", "Sujit S.", "" ] ]
The spreading of bacterial populations is central to processes in agriculture, the environment, and medicine. However, existing models of spreading typically focus on cells in unconfined settings--despite the fact that many bacteria inhabit complex and crowded environments, such as soils, sediments, and biological tiss...
2401.08585
Stephen Clark
Sean Tull, Razin A. Shaikh, Sara Sabrina Zemljic and Stephen Clark
From Conceptual Spaces to Quantum Concepts: Formalising and Learning Structured Conceptual Models
This article consolidates our previous reports on concept formalisation and learning: arXiv:2302.14822 and arXiv:2203.11216
null
null
null
q-bio.NC cs.AI quant-ph
http://creativecommons.org/licenses/by/4.0/
In this article we present a new modelling framework for structured concepts using a category-theoretic generalisation of conceptual spaces, and show how the conceptual representations can be learned automatically from data, using two very different instantiations: one classical and one quantum. A contribution of the...
[ { "created": "Mon, 6 Nov 2023 15:08:22 GMT", "version": "v1" } ]
2024-01-18
[ [ "Tull", "Sean", "" ], [ "Shaikh", "Razin A.", "" ], [ "Zemljic", "Sara Sabrina", "" ], [ "Clark", "Stephen", "" ] ]
In this article we present a new modelling framework for structured concepts using a category-theoretic generalisation of conceptual spaces, and show how the conceptual representations can be learned automatically from data, using two very different instantiations: one classical and one quantum. A contribution of the w...
1310.1453
Yoshinori Takano
Yoshinori Takano, Yoshito Chikaraishi, Naohiko Ohkouchi
Enantiomer-specific isotope analysis of D- and L-alanine: Nitrogen isotopic hetero- and homogeneity in microbial and chemical processes
ISBN: 9784876989607
Earth, Life, and Isotopes (Kyoto University Press), pp. 387-402 (2010)
null
null
q-bio.BM astro-ph.EP
http://creativecommons.org/licenses/publicdomain/
Nitrogen isotopic hetero- and homogeneity of D-{\alpha}-alanine and L-{\alpha}-alanine were investigated in microbial processes in the domain Bacteria and in chemical processes in symmetric organic synthesis. D-alanine is an enantiomer that is physiologically essential for microbial growth and metabolic maintenance. ...
[ { "created": "Sat, 5 Oct 2013 07:52:01 GMT", "version": "v1" } ]
2013-10-08
[ [ "Takano", "Yoshinori", "" ], [ "Chikaraishi", "Yoshito", "" ], [ "Ohkouchi", "Naohiko", "" ] ]
Nitrogen isotopic hetero- and homogeneity of D-{\alpha}-alanine and L-{\alpha}-alanine were investigated in microbial processes in the domain Bacteria and in chemical processes in symmetric organic synthesis. D-alanine is an enantiomer that is physiologically essential for microbial growth and metabolic maintenance. Th...
1511.07959
Christoph Adami
Thomas LaBar, Arend Hintze, and Christoph Adami
Evolvability tradeoffs in emergent digital replicators
26 pages, 5 figures. Revised version, title changed
Artificial Life 22 (2016) 483-498
10.1162/ARTL_a_00214
null
q-bio.PE nlin.AO q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The role of historical contingency in the origin of life is one of the great unknowns in modern science. Only one example of life exists--one that proceeded from a single self-replicating organism (or a set of replicating hyper-cycles) to the vast complexity we see today in Earth's biosphere. We know that emergent li...
[ { "created": "Wed, 25 Nov 2015 06:04:05 GMT", "version": "v1" }, { "created": "Thu, 7 Apr 2016 14:05:46 GMT", "version": "v2" } ]
2016-12-07
[ [ "LaBar", "Thomas", "" ], [ "Hintze", "Arend", "" ], [ "Adami", "Christoph", "" ] ]
The role of historical contingency in the origin of life is one of the great unknowns in modern science. Only one example of life exists--one that proceeded from a single self-replicating organism (or a set of replicating hyper-cycles) to the vast complexity we see today in Earth's biosphere. We know that emergent life...
2103.02417
Bharath Ambale Venkatesh
Vivek P. Jani, Nadjia Kachenoura, Alban Redheuil, Gisela Teixido-Tura, Kevin Bouaou, Emilie Bollache, Elie Mousseaux, Alain De Cesare, Shelby Kutty, Colin O. Wu, David A. Bluemke, Joao A. C. Lima, Bharath Ambale-Venkatesh
Deep Learning-based Automated Aortic Area and Distensibility Assessment: The Multi-Ethnic Study of Atherosclerosis (MESA)
25 pages, 5 figures
null
null
null
q-bio.QM eess.IV
http://creativecommons.org/licenses/by-nc-sa/4.0/
This study applies convolutional neural network (CNN)-based automatic segmentation and distensibility measurement of the ascending and descending aorta from 2D phase-contrast cine magnetic resonance imaging (PC-cine MRI) within the large MESA cohort with subsequent assessment on an external cohort of thoracic aortic ...
[ { "created": "Wed, 3 Mar 2021 14:11:24 GMT", "version": "v1" } ]
2021-03-04
[ [ "Jani", "Vivek P.", "" ], [ "Kachenoura", "Nadjia", "" ], [ "Redheuil", "Alban", "" ], [ "Teixido-Tura", "Gisela", "" ], [ "Bouaou", "Kevin", "" ], [ "Bollache", "Emilie", "" ], [ "Mousseaux", "Elie", "" ...
This study applies convolutional neural network (CNN)-based automatic segmentation and distensibility measurement of the ascending and descending aorta from 2D phase-contrast cine magnetic resonance imaging (PC-cine MRI) within the large MESA cohort with subsequent assessment on an external cohort of thoracic aortic an...
q-bio/0508044
William Bialek
William Bialek
Should you believe that this coin is fair?
null
null
null
null
q-bio.NC q-bio.QM
null
Faced with a sequence of N binary events, such as coin flips (or Ising spins), it is natural to ask whether these events reflect some underlying dynamic signals or are just random. Plausible models for the dynamics of hidden biases lead to surprisingly high probabilities of misidentifying random sequences as biased. ...
[ { "created": "Tue, 30 Aug 2005 03:28:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bialek", "William", "" ] ]
Faced with a sequence of N binary events, such as coin flips (or Ising spins), it is natural to ask whether these events reflect some underlying dynamic signals or are just random. Plausible models for the dynamics of hidden biases lead to surprisingly high probabilities of misidentifying random sequences as biased. In...
2002.02425
Marco Alberto Javarone
Marco Alberto Javarone, Olivia Gosseries, Daniele Marinazzo, Quentin Noirhomme, Vincent Bonhomme, Steven Laureys, Srivas Chennu
A mean field approach to model levels of consciousness from EEG recordings
23 pages, 6 figures. Accepted for publication in Journal of Statistical Mechanics: Theory and Experiment
null
null
null
q-bio.NC cond-mat.dis-nn cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a mean-field model for analysing the dynamics of human consciousness. In particular, inspired by the Giulio Tononi's Integrated Information Theory and by the Max Tegmark's representation of consciousness, we study order-disorder phase transitions on Curie-Weiss models generated by processing EEG signals....
[ { "created": "Thu, 6 Feb 2020 18:09:37 GMT", "version": "v1" }, { "created": "Tue, 4 Aug 2020 16:03:08 GMT", "version": "v2" } ]
2020-08-05
[ [ "Javarone", "Marco Alberto", "" ], [ "Gosseries", "Olivia", "" ], [ "Marinazzo", "Daniele", "" ], [ "Noirhomme", "Quentin", "" ], [ "Bonhomme", "Vincent", "" ], [ "Laureys", "Steven", "" ], [ "Chennu", "Srivas"...
We introduce a mean-field model for analysing the dynamics of human consciousness. In particular, inspired by the Giulio Tononi's Integrated Information Theory and by the Max Tegmark's representation of consciousness, we study order-disorder phase transitions on Curie-Weiss models generated by processing EEG signals. T...
2210.01537
Andreas Christ S{\o}lvsten J{\o}rgensen
Andreas Christ S{\o}lvsten J{\o}rgensen, Ciaran Scott Hill, Marc Sturrock, Wenhao Tang, Saketh R. Karamched, Dunja Gorup, Mark F. Lythgoe, Simona Parrinello, Samuel Marguerat, Vahid Shahrezaei
Data-driven spatio-temporal modelling of glioblastoma
30 pages, 3 figures, 3 tables
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by/4.0/
Mathematical oncology provides unique and invaluable insights into tumour growth on both the microscopic and macroscopic levels. This review presents state-of-the-art modelling techniques and focuses on their role in understanding glioblastoma, a malignant form of brain cancer. For each approach, we summarise the sco...
[ { "created": "Tue, 4 Oct 2022 11:43:34 GMT", "version": "v1" } ]
2022-10-05
[ [ "Jørgensen", "Andreas Christ Sølvsten", "" ], [ "Hill", "Ciaran Scott", "" ], [ "Sturrock", "Marc", "" ], [ "Tang", "Wenhao", "" ], [ "Karamched", "Saketh R.", "" ], [ "Gorup", "Dunja", "" ], [ "Lythgoe", "Mark...
Mathematical oncology provides unique and invaluable insights into tumour growth on both the microscopic and macroscopic levels. This review presents state-of-the-art modelling techniques and focuses on their role in understanding glioblastoma, a malignant form of brain cancer. For each approach, we summarise the scope...
1312.4590
John Bechhoefer
A. Baker and J. Bechhoefer
Inferring the spatiotemporal DNA replication program from noisy data
14 pages, 7 figures
Phys. Rev. E 89, 032703 (2014)
10.1103/PhysRevE.89.032703
null
q-bio.QM cond-mat.stat-mech physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We generalize a stochastic model of DNA replication to the case where replication-origin-initiation rates vary locally along the genome and with time. Using this generalized model, we address the inverse problem of inferring initiation rates from experimental data concerning replication in cell populations. Previous ...
[ { "created": "Mon, 16 Dec 2013 23:12:51 GMT", "version": "v1" } ]
2015-04-02
[ [ "Baker", "A.", "" ], [ "Bechhoefer", "J.", "" ] ]
We generalize a stochastic model of DNA replication to the case where replication-origin-initiation rates vary locally along the genome and with time. Using this generalized model, we address the inverse problem of inferring initiation rates from experimental data concerning replication in cell populations. Previous wo...
1010.1743
Jaewook Joo
Jaewook Joo
Linear noise approximation of noise-induced oscillation in NF-{\kappa}B signaling network
19 pages, 5 figures
null
null
null
q-bio.MN q-bio.SC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
NF-{\kappa}B, one of key regulators of inflammation, apoptosis, and differentiation, was found to have noisy oscillatory shuttling between the nucleus and the cytoplasm in single cells when cells are stimulated by cytokine TNF{\alpha}. We present the analytical analysis which uncovers the underlying physical mechanis...
[ { "created": "Fri, 8 Oct 2010 17:26:42 GMT", "version": "v1" } ]
2010-10-11
[ [ "Joo", "Jaewook", "" ] ]
NF-{\kappa}B, one of key regulators of inflammation, apoptosis, and differentiation, was found to have noisy oscillatory shuttling between the nucleus and the cytoplasm in single cells when cells are stimulated by cytokine TNF{\alpha}. We present the analytical analysis which uncovers the underlying physical mechanisms...
1304.2018
Romann Weber
Romann M. Weber
Beyond Spikes: Neural Codes and the Chemical Vocabulary of Cognition
19 pages, 2 figures; revised version
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, I examine what I refer to as the spike doctrine, which is the generally held belief in neuroscience that information in the brain is encoded by sequences of neural action potentials. I present the argument that specific neurochemicals, and not spikes, are the elementary units of information in the brai...
[ { "created": "Sun, 7 Apr 2013 16:23:50 GMT", "version": "v1" }, { "created": "Sun, 2 Jun 2013 13:08:56 GMT", "version": "v2" } ]
2013-06-04
[ [ "Weber", "Romann M.", "" ] ]
In this paper, I examine what I refer to as the spike doctrine, which is the generally held belief in neuroscience that information in the brain is encoded by sequences of neural action potentials. I present the argument that specific neurochemicals, and not spikes, are the elementary units of information in the brain....
2003.12233
Tom Chou
Mingtao Xia, Chris D. Greenman, and Tom Chou
PDE models of adder mechanisms in cellular proliferation
23 pages, 8 figures
null
null
null
q-bio.CB math.AP
http://creativecommons.org/licenses/by-nc-sa/4.0/
Cell division is a process that involves many biochemical steps and complex biophysical mechanisms. To simplify the understanding of what triggers cell division, three basic models that subsume more microscopic cellular processes associated with cell division have been proposed. Cells can divide based on the time ela...
[ { "created": "Fri, 27 Mar 2020 04:50:45 GMT", "version": "v1" } ]
2020-03-30
[ [ "Xia", "Mingtao", "" ], [ "Greenman", "Chris D.", "" ], [ "Chou", "Tom", "" ] ]
Cell division is a process that involves many biochemical steps and complex biophysical mechanisms. To simplify the understanding of what triggers cell division, three basic models that subsume more microscopic cellular processes associated with cell division have been proposed. Cells can divide based on the time elaps...
1112.3663
Lorenzo Pareschi
A. Boccabella, R. Natalini, L. Pareschi
On a continuous mixed strategies model for evolutionary game theory
null
Kinetic and Related Models 4, 187-213 (2011)
null
null
q-bio.PE cond-mat.stat-mech math.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider an integro-differential model for evolutionary game theory which describes the evolution of a population adopting mixed strategies. Using a reformulation based on the first moments of the solution, we prove some analytical properties of the model and global estimates. The asymptotic behavior and the stabi...
[ { "created": "Wed, 14 Dec 2011 17:45:16 GMT", "version": "v1" } ]
2011-12-19
[ [ "Boccabella", "A.", "" ], [ "Natalini", "R.", "" ], [ "Pareschi", "L.", "" ] ]
We consider an integro-differential model for evolutionary game theory which describes the evolution of a population adopting mixed strategies. Using a reformulation based on the first moments of the solution, we prove some analytical properties of the model and global estimates. The asymptotic behavior and the stabili...
1407.5856
Alejandro F Villaverde
Alejandro F Villaverde, David Henriques, Kieran Smallbone, Sophia Bongard, Joachim Schmid, Damjan Cicin-Sain, Anton Crombach, Julio Saez-Rodriguez, Klaus Mauch, Eva Balsa-Canto, Pedro Mendes, Johannes Jaeger, and Julio R Banga
BioPreDyn-bench: benchmark problems for kinetic modelling in systems biology
null
BMC Systems Biology 2015 9:8
10.1186/s12918-015-0144-
null
q-bio.QM cs.CE q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dynamic modelling is one of the cornerstones of systems biology. Many research efforts are currently being invested in the development and exploitation of large-scale kinetic models. The associated problems of parameter estimation (model calibration) and optimal experimental design are particularly challenging. The c...
[ { "created": "Tue, 22 Jul 2014 13:31:05 GMT", "version": "v1" } ]
2017-03-22
[ [ "Villaverde", "Alejandro F", "" ], [ "Henriques", "David", "" ], [ "Smallbone", "Kieran", "" ], [ "Bongard", "Sophia", "" ], [ "Schmid", "Joachim", "" ], [ "Cicin-Sain", "Damjan", "" ], [ "Crombach", "Anton", ...
Dynamic modelling is one of the cornerstones of systems biology. Many research efforts are currently being invested in the development and exploitation of large-scale kinetic models. The associated problems of parameter estimation (model calibration) and optimal experimental design are particularly challenging. The com...
1701.02908
Ricardo Martinez-Garcia
Ricardo Martinez-Garcia
Nonequilibrium Statistical Physics in Ecology: Vegetation Patterns, Animal Mobility and Temporal Fluctuations
PhD Thesis
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This thesis focuses on the applications of mathematical tools and concepts brought from nonequilibrium statistical physics to the modeling of ecological problems. The first part provides a short introduction where the theoretical concepts and mathematical tools that are going to be used in subsequent chapters are p...
[ { "created": "Wed, 11 Jan 2017 09:56:45 GMT", "version": "v1" } ]
2017-01-12
[ [ "Martinez-Garcia", "Ricardo", "" ] ]
This thesis focuses on the applications of mathematical tools and concepts brought from nonequilibrium statistical physics to the modeling of ecological problems. The first part provides a short introduction where the theoretical concepts and mathematical tools that are going to be used in subsequent chapters are prese...
1411.4121
Zuo-Bing Wu
Zuo-Bing Wu
Analysis of correlation structures in the Synechocystis PCC6803 genome
29 pages, 6 figures
Computational Biology and Chemistry, Vol. 53, pp. 49-58 (2014)
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Transfer of nucleotide strings in the Synechocystis sp. PCC6803 genome is investigated to exhibit periodic and non-periodic correlation structures by using the recurrence plot method and the phase space reconstruction technique. The periodic correlation structures are generated by periodic transfer of several substri...
[ { "created": "Sat, 15 Nov 2014 07:40:04 GMT", "version": "v1" } ]
2014-11-18
[ [ "Wu", "Zuo-Bing", "" ] ]
Transfer of nucleotide strings in the Synechocystis sp. PCC6803 genome is investigated to exhibit periodic and non-periodic correlation structures by using the recurrence plot method and the phase space reconstruction technique. The periodic correlation structures are generated by periodic transfer of several substring...
1909.11597
Abbas Saberi Abbas Ali Saberi
Youness Azimzade, and Abbas Ali Saberi
Short-Range Migration Can Alter Evolutionary Dynamics in Solid Tumors
8 pages, 6 figures (to appear in JSTAT)
J. Stat. Mech.(JSTAT) (2019) 103502
10.1088/1742-5468/ab4983
null
q-bio.PE cond-mat.soft physics.bio-ph q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Here, we investigate how competition in the Eden model is affected by short range dispersal and the requirement that site updates occur only after several updates of the same site have been attempted previously. The latter models the effect of tissue or media resistance to invasion. We found that the existence of tis...
[ { "created": "Wed, 25 Sep 2019 16:34:07 GMT", "version": "v1" } ]
2019-12-05
[ [ "Azimzade", "Youness", "" ], [ "Saberi", "Abbas Ali", "" ] ]
Here, we investigate how competition in the Eden model is affected by short range dispersal and the requirement that site updates occur only after several updates of the same site have been attempted previously. The latter models the effect of tissue or media resistance to invasion. We found that the existence of tissu...
1101.5865
Peter Csermely
Peter Csermely, Kuljeet Singh Sandhu, Eszter Hazai, Zsolt Hoksza, Huba J.M. Kiss, Federico Miozzo, Daniel V. Veres, Francesco Piazza and Ruth Nussinov
Disordered proteins and network disorder in network descriptions of protein structure, dynamics and function. Hypotheses and a comprehensive review
27 pages, 2 Tables, 5 Figures and 161 references
Current Protein and Peptide Science 13, 19-33 (2012)
null
null
q-bio.MN cond-mat.dis-nn physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
During the last decade, network approaches became a powerful tool to describe protein structure and dynamics. Here we review the links between disordered proteins and the associated networks, and describe the consequences of local, mesoscopic and global network disorder on changes in protein structure and dynamics. W...
[ { "created": "Mon, 31 Jan 2011 07:55:53 GMT", "version": "v1" }, { "created": "Sun, 6 Feb 2011 08:27:53 GMT", "version": "v2" }, { "created": "Fri, 2 Mar 2012 15:09:49 GMT", "version": "v3" } ]
2012-03-05
[ [ "Csermely", "Peter", "" ], [ "Sandhu", "Kuljeet Singh", "" ], [ "Hazai", "Eszter", "" ], [ "Hoksza", "Zsolt", "" ], [ "Kiss", "Huba J. M.", "" ], [ "Miozzo", "Federico", "" ], [ "Veres", "Daniel V.", "" ]...
During the last decade, network approaches became a powerful tool to describe protein structure and dynamics. Here we review the links between disordered proteins and the associated networks, and describe the consequences of local, mesoscopic and global network disorder on changes in protein structure and dynamics. We ...
1910.05332
Wolfram M\"obius
Wolfram M\"obius, Francesca Tesser, Kim M. J. Alards, Roberto Benzi, David R. Nelson, Federico Toschi
The collective effect of finite-sized inhomogeneities on the spatial spread of populations in two dimensions
Authors Wolfram M\"obius and Francesca Tesser contributed equally
null
null
null
q-bio.PE cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dynamics of a population expanding into unoccupied habitat has been primarily studied for situations in which growth and dispersal parameters are uniform in space or vary in one dimension. Here we study the influence of finite-sized individual inhomogeneities and their collective effect on front speed if randomly...
[ { "created": "Fri, 11 Oct 2019 17:54:18 GMT", "version": "v1" }, { "created": "Mon, 20 Sep 2021 07:52:01 GMT", "version": "v2" } ]
2021-09-21
[ [ "Möbius", "Wolfram", "" ], [ "Tesser", "Francesca", "" ], [ "Alards", "Kim M. J.", "" ], [ "Benzi", "Roberto", "" ], [ "Nelson", "David R.", "" ], [ "Toschi", "Federico", "" ] ]
The dynamics of a population expanding into unoccupied habitat has been primarily studied for situations in which growth and dispersal parameters are uniform in space or vary in one dimension. Here we study the influence of finite-sized individual inhomogeneities and their collective effect on front speed if randomly p...
2301.03878
Gabriel Cia
Gabriel Cia, Fabrizio Pucci, Marianne Rooman
Critical review of conformational B-cell epitope prediction methods
19 pages, 2 figures, 3 tables
Briefings in Bioinformatics, bbac567, 1-9, 2023
10.1093/bib/bbac567
null
q-bio.BM
http://creativecommons.org/licenses/by/4.0/
Accurate in-silico prediction of conformational B-cell epitopes would lead to major improvements in disease diagnostics, drug design and vaccine development. A variety of computational methods, mainly based on machine learning approaches, have been developed in the last decades to tackle this challenging problem. Her...
[ { "created": "Tue, 10 Jan 2023 10:01:16 GMT", "version": "v1" } ]
2023-01-11
[ [ "Cia", "Gabriel", "" ], [ "Pucci", "Fabrizio", "" ], [ "Rooman", "Marianne", "" ] ]
Accurate in-silico prediction of conformational B-cell epitopes would lead to major improvements in disease diagnostics, drug design and vaccine development. A variety of computational methods, mainly based on machine learning approaches, have been developed in the last decades to tackle this challenging problem. Here,...
2205.07656
Hilla De-Leon
Hilla De-Leon and Francesco Pederiva
Using a physical model and aggregate data to estimate the spreading of Covid-19 in Israel in the presence of waning immunity and competing variants
9 pages 8 figures
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In more than two years since the COVID-19 virus was first detected in China, hundreds of millions of individuals have been infected, and millions have died. Aside from the immediate need for medical solutions (such as vaccines and medications) to treat the epidemic, the Corona pandemic has strengthened the demand for...
[ { "created": "Mon, 16 May 2022 13:19:52 GMT", "version": "v1" } ]
2022-05-17
[ [ "De-Leon", "Hilla", "" ], [ "Pederiva", "Francesco", "" ] ]
In more than two years since the COVID-19 virus was first detected in China, hundreds of millions of individuals have been infected, and millions have died. Aside from the immediate need for medical solutions (such as vaccines and medications) to treat the epidemic, the Corona pandemic has strengthened the demand for m...
1111.7183
Arry Yanuar
Arry Yanuar, Abdul Mun'im, Akma Bertha Aprima Lagho, Rezi Riadhi Syahdi, Marjuqi Rahmat, Heru Suhartanto
Medicinal Plants Database and Three Dimensional Structure of the Chemical Compounds from Medicinal Plants in Indonesia
4 pages, 3 figures
Int. J. Comp. Sci. Issue (2011), Vol. 8, Issue 5, No. 1, p180 - 183
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
During this era of new drug designing, medicinal plants had become a very interesting object of further research. Pharmacology screening of active compound of medicinal plants would be time consuming and costly. Molecular docking is one of the in silico method which is more efficient compare to in vitro or in vivo me...
[ { "created": "Tue, 29 Nov 2011 01:30:06 GMT", "version": "v1" } ]
2012-10-17
[ [ "Yanuar", "Arry", "" ], [ "Mun'im", "Abdul", "" ], [ "Lagho", "Akma Bertha Aprima", "" ], [ "Syahdi", "Rezi Riadhi", "" ], [ "Rahmat", "Marjuqi", "" ], [ "Suhartanto", "Heru", "" ] ]
During this era of new drug designing, medicinal plants had become a very interesting object of further research. Pharmacology screening of active compound of medicinal plants would be time consuming and costly. Molecular docking is one of the in silico method which is more efficient compare to in vitro or in vivo meth...
2306.03987
Mary Lisa Manning
Elizabeth Lawson-Keister, Tao Zhang, M. Lisa Manning
Differences in boundary behavior in the 3D vertex and Voronoi models
10 pages, 5 figures
null
null
null
q-bio.TO cond-mat.soft
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An important open question in the modeling of biological tissues is how to identify the right scale for coarse-graining, or equivalently, the right number of degrees of freedom. For confluent biological tissues, both vertex and Voronoi models, which differ only in their representation of the degrees of freedom, have ...
[ { "created": "Tue, 6 Jun 2023 19:48:41 GMT", "version": "v1" } ]
2023-06-08
[ [ "Lawson-Keister", "Elizabeth", "" ], [ "Zhang", "Tao", "" ], [ "Manning", "M. Lisa", "" ] ]
An important open question in the modeling of biological tissues is how to identify the right scale for coarse-graining, or equivalently, the right number of degrees of freedom. For confluent biological tissues, both vertex and Voronoi models, which differ only in their representation of the degrees of freedom, have ef...
2009.08309
Charis Mesaritakis
Menelaos Skontranis, George Sarantoglou, Stavros Deligiannidis, Adonis Bogris, Charis Mesaritakis
Unsupervised Image Classification Through Time-Multiplexed Photonic Multi-Layer Spiking Convolutional Neural Network
4 pages, 3 figures
null
10.1109/ECOC48923.2020.9333320
null
q-bio.NC eess.IV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results of a deep photonic spiking convolutional neural network, based on two-section VCSELs, targeting image classification. Training is based on unsupervised spike-timing dependent plasticity, whereas neuron time-multiplexing and ultra-fast response are exploited towards a a reduction of the physical neu...
[ { "created": "Wed, 16 Sep 2020 07:52:32 GMT", "version": "v1" } ]
2021-03-30
[ [ "Skontranis", "Menelaos", "" ], [ "Sarantoglou", "George", "" ], [ "Deligiannidis", "Stavros", "" ], [ "Bogris", "Adonis", "" ], [ "Mesaritakis", "Charis", "" ] ]
We present results of a deep photonic spiking convolutional neural network, based on two-section VCSELs, targeting image classification. Training is based on unsupervised spike-timing dependent plasticity, whereas neuron time-multiplexing and ultra-fast response are exploited towards a a reduction of the physical neuro...
2302.09151
Jin Xu
Jin Xu, Gary Geng, Nhan D. Nguyen, Carmen Perena-Cortes, Claire Samuels, Herbert M. Sauro
SBcoyote: An Extensible Python-Based Reaction Editor and Viewer
null
null
10.1016/j.biosystems.2023.105001
null
q-bio.QM q-bio.MN
http://creativecommons.org/licenses/by-nc-nd/4.0/
SBcoyote is an open-source cross-platform biochemical reaction viewer and editor released under the liberal MIT license. It is written in Python and uses wxPython to implement the GUI and the drawing canvas. It supports the visualization and editing of compartments, species, and reactions. It includes many options to...
[ { "created": "Fri, 17 Feb 2023 21:24:44 GMT", "version": "v1" }, { "created": "Mon, 14 Aug 2023 21:43:47 GMT", "version": "v2" } ]
2024-02-14
[ [ "Xu", "Jin", "" ], [ "Geng", "Gary", "" ], [ "Nguyen", "Nhan D.", "" ], [ "Perena-Cortes", "Carmen", "" ], [ "Samuels", "Claire", "" ], [ "Sauro", "Herbert M.", "" ] ]
SBcoyote is an open-source cross-platform biochemical reaction viewer and editor released under the liberal MIT license. It is written in Python and uses wxPython to implement the GUI and the drawing canvas. It supports the visualization and editing of compartments, species, and reactions. It includes many options to s...
2212.02504
Jonas Ditz
Jonas C. Ditz, Bernhard Reuter, Nico Pfeifer
COmic: Convolutional Kernel Networks for Interpretable End-to-End Learning on (Multi-)Omics Data
null
null
null
null
q-bio.QM cs.LG
http://creativecommons.org/licenses/by/4.0/
Motivation: The size of available omics datasets is steadily increasing with technological advancement in recent years. While this increase in sample size can be used to improve the performance of relevant prediction tasks in healthcare, models that are optimized for large datasets usually operate as black boxes. In ...
[ { "created": "Fri, 2 Dec 2022 12:54:27 GMT", "version": "v1" }, { "created": "Wed, 3 May 2023 11:51:34 GMT", "version": "v2" } ]
2023-05-04
[ [ "Ditz", "Jonas C.", "" ], [ "Reuter", "Bernhard", "" ], [ "Pfeifer", "Nico", "" ] ]
Motivation: The size of available omics datasets is steadily increasing with technological advancement in recent years. While this increase in sample size can be used to improve the performance of relevant prediction tasks in healthcare, models that are optimized for large datasets usually operate as black boxes. In hi...
1504.00959
Jie Ren
Jie Ren, Kai Song, Minghua Deng, Gesine Reinert, Charles H. Cannon and Fengzhu Sun
Inference of Markovian Properties of Molecular Sequences from NGS Data and Applications to Comparative Genomics
accepted by RECOMB-SEQ 2015
null
null
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Next Generation Sequencing (NGS) technologies generate large amounts of short read data for many different organisms. The fact that NGS reads are generally short makes it challenging to assemble the reads and reconstruct the original genome sequence. For clustering genomes using such NGS data, word-count based alignm...
[ { "created": "Sat, 4 Apr 2015 00:05:38 GMT", "version": "v1" } ]
2015-04-07
[ [ "Ren", "Jie", "" ], [ "Song", "Kai", "" ], [ "Deng", "Minghua", "" ], [ "Reinert", "Gesine", "" ], [ "Cannon", "Charles H.", "" ], [ "Sun", "Fengzhu", "" ] ]
Next Generation Sequencing (NGS) technologies generate large amounts of short read data for many different organisms. The fact that NGS reads are generally short makes it challenging to assemble the reads and reconstruct the original genome sequence. For clustering genomes using such NGS data, word-count based alignmen...
2010.02993
Erik Fagerholm
Erik D. Fagerholm, Karl J. Friston, Rosalyn J. Moran, Robert Leech
The principle of stationary action in neural systems
null
null
null
null
q-bio.NC physics.class-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The principle of stationary action is a cornerstone of modern physics, providing a powerful framework for investigating dynamical systems found in classical mechanics through to quantum field theory. However, computational neuroscience, despite its heavy reliance on concepts in physics, is anomalous in this regard as...
[ { "created": "Tue, 6 Oct 2020 19:43:55 GMT", "version": "v1" } ]
2020-10-08
[ [ "Fagerholm", "Erik D.", "" ], [ "Friston", "Karl J.", "" ], [ "Moran", "Rosalyn J.", "" ], [ "Leech", "Robert", "" ] ]
The principle of stationary action is a cornerstone of modern physics, providing a powerful framework for investigating dynamical systems found in classical mechanics through to quantum field theory. However, computational neuroscience, despite its heavy reliance on concepts in physics, is anomalous in this regard as i...
2303.16558
Manh Hong Duong
L. Chen, C. Deng, M. H. Duong and T. A. Han
On the number of equilibria of the replicator-mutator dynamics for noisy social dilemmas
null
null
null
null
q-bio.PE math.DS
http://creativecommons.org/licenses/by/4.0/
In this paper, we consider the replicator-mutator dynamics for pairwise social dilemmas where the payoff entries are random variables. The randomness is incorporated to take into account the uncertainty, which is inevitable in practical applications and may arise from different sources such as lack of data for measur...
[ { "created": "Wed, 29 Mar 2023 09:27:43 GMT", "version": "v1" } ]
2023-03-30
[ [ "Chen", "L.", "" ], [ "Deng", "C.", "" ], [ "Duong", "M. H.", "" ], [ "Han", "T. A.", "" ] ]
In this paper, we consider the replicator-mutator dynamics for pairwise social dilemmas where the payoff entries are random variables. The randomness is incorporated to take into account the uncertainty, which is inevitable in practical applications and may arise from different sources such as lack of data for measurin...
2101.08111
Manuel Marques-Pita PhD
Santosh Manicka, Manuel Marques-Pita, Luis M. Rocha
Effective connectivity determines the critical dynamics of biochemical networks
22 pages, 7 figures
null
null
null
q-bio.MN nlin.AO
http://creativecommons.org/licenses/by/4.0/
Living systems operate in a critical dynamical regime -- between order and chaos -- where they are both resilient to perturbation, and flexible enough to evolve. To characterize such critical dynamics, the established 'structural theory' of criticality uses automata network connectivity and node bias (to be on or off...
[ { "created": "Wed, 20 Jan 2021 13:16:39 GMT", "version": "v1" } ]
2022-01-28
[ [ "Manicka", "Santosh", "" ], [ "Marques-Pita", "Manuel", "" ], [ "Rocha", "Luis M.", "" ] ]
Living systems operate in a critical dynamical regime -- between order and chaos -- where they are both resilient to perturbation, and flexible enough to evolve. To characterize such critical dynamics, the established 'structural theory' of criticality uses automata network connectivity and node bias (to be on or off) ...
1903.09567
Owen Gilbert
Owen M. Gilbert
Natural reward as the fundamental macroevolutionary force
21 pages, 9 figures, 2 tables. Keywords: invention, entrepreneurship, innovation, success, progress, advancement
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Darwin's theory of evolution by natural selection does not predict long-term progress or advancement, nor does it provide a useful way to define or understand these concepts. Nevertheless, the history of life is marked by major trends that appear progressive, and seemingly more advanced forms of life have appeared. T...
[ { "created": "Fri, 22 Mar 2019 15:50:13 GMT", "version": "v1" } ]
2019-03-25
[ [ "Gilbert", "Owen M.", "" ] ]
Darwin's theory of evolution by natural selection does not predict long-term progress or advancement, nor does it provide a useful way to define or understand these concepts. Nevertheless, the history of life is marked by major trends that appear progressive, and seemingly more advanced forms of life have appeared. To ...
1708.03025
Zhuolin Qu
Zhuolin Qu, Ling Xue, and James M. Hyman
Modeling the transmission of Wolbachia in mosquitoes for controlling mosquito-borne diseases
27 pages, 14 figure; submitted to SIAP
SIAM Journal on Applied Mathematics, 2018
10.1137/17M1130800
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop and analyze an ordinary differential equation model to assess the potential effectiveness of infecting mosquitoes with the Wolbachia bacteria to control the ongoing mosquito-borne epidemics, such as dengue fever, chikungunya, and Zika. Wolbachia is a natural parasitic microbe that stops the proliferation o...
[ { "created": "Wed, 9 Aug 2017 22:06:03 GMT", "version": "v1" } ]
2020-08-14
[ [ "Qu", "Zhuolin", "" ], [ "Xue", "Ling", "" ], [ "Hyman", "James M.", "" ] ]
We develop and analyze an ordinary differential equation model to assess the potential effectiveness of infecting mosquitoes with the Wolbachia bacteria to control the ongoing mosquito-borne epidemics, such as dengue fever, chikungunya, and Zika. Wolbachia is a natural parasitic microbe that stops the proliferation of ...
0711.4937
Azi Lipshtat
Azi Lipshtat, Sudarshan P. Purushothaman, Ravi Iyengar, Avi Ma'ayan
Functions of Bifans in Context of Multiple Regulatory Motifs in Signaling Networks
Accepted for publication in the Biophysical Journal
null
10.1529/biophysj.107.116673
null
q-bio.MN q-bio.QM q-bio.SC
null
Representation of intracellular signaling networks as directed graphs allows for the identification of regulatory motifs. Regulatory motifs are groups of nodes with the same connectivity structure, capable of processing information. The bifan motif, made of two source nodes directly cross-regulating two target nodes,...
[ { "created": "Fri, 30 Nov 2007 14:15:37 GMT", "version": "v1" } ]
2009-11-13
[ [ "Lipshtat", "Azi", "" ], [ "Purushothaman", "Sudarshan P.", "" ], [ "Iyengar", "Ravi", "" ], [ "Ma'ayan", "Avi", "" ] ]
Representation of intracellular signaling networks as directed graphs allows for the identification of regulatory motifs. Regulatory motifs are groups of nodes with the same connectivity structure, capable of processing information. The bifan motif, made of two source nodes directly cross-regulating two target nodes, i...
2401.14651
Swadesh Pal
Swadesh Pal and Roderick Melnik
Nonlocal Models in Biology and Life Sciences: Sources, Developments, and Applications
71 pages
null
null
null
q-bio.QM math-ph math.DS math.MP
http://creativecommons.org/licenses/by-sa/4.0/
Nonlocality is important in realistic mathematical models of physical and biological systems at small-length scales. It characterizes the properties of two individuals located in different locations. This review illustrates different nonlocal mathematical models applied to biology and life sciences. The major focus h...
[ { "created": "Fri, 26 Jan 2024 05:17:48 GMT", "version": "v1" } ]
2024-01-29
[ [ "Pal", "Swadesh", "" ], [ "Melnik", "Roderick", "" ] ]
Nonlocality is important in realistic mathematical models of physical and biological systems at small-length scales. It characterizes the properties of two individuals located in different locations. This review illustrates different nonlocal mathematical models applied to biology and life sciences. The major focus has...
1502.07077
Flavio Coelho
Joyce de Figueir\'o Santos, Fl\'avio Code\c{c}o Coelho, Pierre Alexandre Bliman
Behavioral modulation of the coexistence between Apis melifera and Varroa destructor: A defense against colony colapse disorder?
null
null
10.1371/journal.pone.0160465
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Colony Collapse Disorder has become a global problem for beekeepers and for the crops which depend on bee polination. Multiple factors are known to increase the risk of colony colapse, and the ectoparasitic mite Varroa destructor that parasitizes honey bees is among the main threats to colony health. Although this mi...
[ { "created": "Wed, 25 Feb 2015 08:17:20 GMT", "version": "v1" }, { "created": "Thu, 26 Feb 2015 09:42:26 GMT", "version": "v2" } ]
2020-10-02
[ [ "Santos", "Joyce de Figueiró", "" ], [ "Coelho", "Flávio Codeço", "" ], [ "Bliman", "Pierre Alexandre", "" ] ]
Colony Collapse Disorder has become a global problem for beekeepers and for the crops which depend on bee polination. Multiple factors are known to increase the risk of colony colapse, and the ectoparasitic mite Varroa destructor that parasitizes honey bees is among the main threats to colony health. Although this mite...
1802.09131
Tristan Sharp
Tristan A. Sharp, Matthias Merkel, M. Lisa Manning, Andrea J. Liu
Statistical properties of 3D cell geometry from 2D slices
null
null
10.1371/journal.pone.0209892
null
q-bio.QM physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Although cell shape can reflect the mechanical and biochemical properties of the cell and its environment, quantification of 3D cell shapes within 3D tissues remains difficult, typically requiring digital reconstruction from a stack of 2D images. We investigate a simple alternative technique to extract information ab...
[ { "created": "Mon, 26 Feb 2018 02:12:39 GMT", "version": "v1" }, { "created": "Tue, 26 Jun 2018 02:04:58 GMT", "version": "v2" } ]
2019-03-06
[ [ "Sharp", "Tristan A.", "" ], [ "Merkel", "Matthias", "" ], [ "Manning", "M. Lisa", "" ], [ "Liu", "Andrea J.", "" ] ]
Although cell shape can reflect the mechanical and biochemical properties of the cell and its environment, quantification of 3D cell shapes within 3D tissues remains difficult, typically requiring digital reconstruction from a stack of 2D images. We investigate a simple alternative technique to extract information abou...
1901.00782
Julien Renoult
Julien P. Renoult and Tamra C. Mendelson
Processing Bias: Extending Sensory Drive to Include Efficacy and Efficiency in Information Processing
null
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
Communication signals often comprise an array of colors, lines, spots, notes or odors that are arranged in complex patterns, melodies or blends. Receiver perception is assumed to influence preference and thus the evolution of signal design, but evolutionary biologists still struggle to understand how perception, pref...
[ { "created": "Thu, 3 Jan 2019 15:08:55 GMT", "version": "v1" } ]
2019-01-04
[ [ "Renoult", "Julien P.", "" ], [ "Mendelson", "Tamra C.", "" ] ]
Communication signals often comprise an array of colors, lines, spots, notes or odors that are arranged in complex patterns, melodies or blends. Receiver perception is assumed to influence preference and thus the evolution of signal design, but evolutionary biologists still struggle to understand how perception, prefer...
1202.4335
Andr\'es Chavarr\'ia-Krauser
Juliane Claus and Andr\'es Chavarr\'ia-Krauser
Modeling Regulation of Zinc Uptake via ZIP Transporters in Yeast and Plant Roots
23 pages including 2 tables and 7 figures
null
10.1371/journal.pone.0037193
null
q-bio.CB
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In yeast (Saccharomyces cerevisiae) and plant roots (Arabidopsis thaliana) zinc enters the cells via influx transporters of the ZIP family. Since zinc is both essential for cell function and toxic at high concentrations, tight regulation is essential for cell viability. We provide new insight into the underlying mech...
[ { "created": "Mon, 20 Feb 2012 14:26:48 GMT", "version": "v1" } ]
2015-06-04
[ [ "Claus", "Juliane", "" ], [ "Chavarría-Krauser", "Andrés", "" ] ]
In yeast (Saccharomyces cerevisiae) and plant roots (Arabidopsis thaliana) zinc enters the cells via influx transporters of the ZIP family. Since zinc is both essential for cell function and toxic at high concentrations, tight regulation is essential for cell viability. We provide new insight into the underlying mechan...
2405.04734
Erin Gill
Erin E. Gill, Baofeng Jia, Carmen Lia Murall, Rapha\"el Poujol, Muhammad Zohaib Anwar, Nithu Sara John, Justin Richardsson, Ashley Hobb, Abayomi S. Olabode, Alexandru Lepsa, Ana T. Duggan, Andrea D. Tyler, Arnaud N'Guessan, Atul Kachru, Brandon Chan, Catherine Yoshida, Christina K. Yung, David Bujold, Dusan And...
The Canadian VirusSeq Data Portal & Duotang: open resources for SARS-CoV-2 viral sequences and genomic epidemiology
null
null
null
null
q-bio.GN
http://creativecommons.org/licenses/by/4.0/
The COVID-19 pandemic led to a large global effort to sequence SARS-CoV-2 genomes from patient samples to track viral evolution and inform public health response. Millions of SARS-CoV-2 genome sequences have been deposited in global public repositories. The Canadian COVID-19 Genomics Network (CanCOGeN - VirusSeq), a ...
[ { "created": "Wed, 8 May 2024 00:50:35 GMT", "version": "v1" } ]
2024-05-09
[ [ "Gill", "Erin E.", "" ], [ "Jia", "Baofeng", "" ], [ "Murall", "Carmen Lia", "" ], [ "Poujol", "Raphaël", "" ], [ "Anwar", "Muhammad Zohaib", "" ], [ "John", "Nithu Sara", "" ], [ "Richardsson", "Justin", "...
The COVID-19 pandemic led to a large global effort to sequence SARS-CoV-2 genomes from patient samples to track viral evolution and inform public health response. Millions of SARS-CoV-2 genome sequences have been deposited in global public repositories. The Canadian COVID-19 Genomics Network (CanCOGeN - VirusSeq), a co...
2408.07110
Julian Suk
Julian Suk, Dieuwertje Alblas, Barbara A. Hutten, Albert Wiegman, Christoph Brune, Pim van Ooij and Jelmer M. Wolterink
Physics-informed graph neural networks for flow field estimation in carotid arteries
Preprint. Under Review
null
null
null
q-bio.QM cs.LG physics.flu-dyn
http://creativecommons.org/licenses/by/4.0/
Hemodynamic quantities are valuable biomedical risk factors for cardiovascular pathology such as atherosclerosis. Non-invasive, in-vivo measurement of these quantities can only be performed using a select number of modalities that are not widely available, such as 4D flow magnetic resonance imaging (MRI). In this wor...
[ { "created": "Tue, 13 Aug 2024 13:09:28 GMT", "version": "v1" } ]
2024-08-15
[ [ "Suk", "Julian", "" ], [ "Alblas", "Dieuwertje", "" ], [ "Hutten", "Barbara A.", "" ], [ "Wiegman", "Albert", "" ], [ "Brune", "Christoph", "" ], [ "van Ooij", "Pim", "" ], [ "Wolterink", "Jelmer M.", "" ...
Hemodynamic quantities are valuable biomedical risk factors for cardiovascular pathology such as atherosclerosis. Non-invasive, in-vivo measurement of these quantities can only be performed using a select number of modalities that are not widely available, such as 4D flow magnetic resonance imaging (MRI). In this work,...
0805.3588
Vladimir Ivancevic
Vladimir G. Ivancevic
Human-Robot Biodynamics
20 pages, 11 figures, Latex
null
null
null
q-bio.OT q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents the scientific body of knowledge behind the Human Biodynamics Engine (HBE), a human motion simulator developed on the concept of Euclidean motion group SE(3), with 270 active degrees of freedom, force-velocity-time muscular mechanics and two-level neural control - formulated in the fashion of nonl...
[ { "created": "Fri, 23 May 2008 06:55:30 GMT", "version": "v1" }, { "created": "Thu, 12 Jun 2008 02:51:28 GMT", "version": "v2" }, { "created": "Fri, 18 Jul 2008 05:05:47 GMT", "version": "v3" } ]
2008-07-18
[ [ "Ivancevic", "Vladimir G.", "" ] ]
This paper presents the scientific body of knowledge behind the Human Biodynamics Engine (HBE), a human motion simulator developed on the concept of Euclidean motion group SE(3), with 270 active degrees of freedom, force-velocity-time muscular mechanics and two-level neural control - formulated in the fashion of nonlin...
q-bio/0506042
Van M. Savage jr
Van M. Savage and Geoffrey B. West
Towards a Quantitative, Metabolic Theory for Mammalian Sleep
20 pages, 4 figures
null
null
null
q-bio.OT
null
Sleep is one of the most noticeable and widespread phenomena occurring in multicellular animals. Nevertheless, no consensus for a theory of its origins has emerged. In particular, no explicit, quantitative theory exists that elucidates or distinguishes between the myriad hypotheses proposed for sleep. Here, we develo...
[ { "created": "Thu, 30 Jun 2005 04:34:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Savage", "Van M.", "" ], [ "West", "Geoffrey B.", "" ] ]
Sleep is one of the most noticeable and widespread phenomena occurring in multicellular animals. Nevertheless, no consensus for a theory of its origins has emerged. In particular, no explicit, quantitative theory exists that elucidates or distinguishes between the myriad hypotheses proposed for sleep. Here, we develop ...
1801.01856
Glenn Webb Dr
Pierre Magal, Glenn F. Webb, and Yixiang Wu
Spatial Spread of Epidemic Diseases in Geographical Settings: Seasonal Influenza Epidemics in Puerto Rico
18 pages, 13 figures
null
null
null
q-bio.PE math.DS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deterministic models are developed for the spatial spread of epidemic diseases in geographical settings. The models are focused on outbreaks that arise from a small number of infected hosts imported into sub-regions of the geographical settings. The goal is to understand how spatial heterogeneity influences the trans...
[ { "created": "Fri, 5 Jan 2018 18:05:14 GMT", "version": "v1" } ]
2018-01-08
[ [ "Magal", "Pierre", "" ], [ "Webb", "Glenn F.", "" ], [ "Wu", "Yixiang", "" ] ]
Deterministic models are developed for the spatial spread of epidemic diseases in geographical settings. The models are focused on outbreaks that arise from a small number of infected hosts imported into sub-regions of the geographical settings. The goal is to understand how spatial heterogeneity influences the transmi...
2102.04301
Khaled Khleifat Dr
H.A Qaralleh, M.O. Al-Limoun, A. Khlaifat, K.M. Khleifat, N. Al-Tawarah, K.Y. Alsharafa, H.A. Abu-Harirah
Antibacterial and antibiofilm activities of a traditional herbal formula against respiratory infection causing bacteria
8 pages, 4 tables, 2 figures
Antibacterial and Antibiofilm Activities of a Traditional Herbal Formula against Respiratory Infection Causing Bacteria. Trop J Nat Prod Res. 2020; 4(9):527-534
10.26538/tjnpr/v4i9.6
null
q-bio.OT
http://creativecommons.org/publicdomain/zero/1.0/
The plants, Althaea officinalis, Tilia cordata and Psidium guaja have been used traditionally to treat respiratory infection symptoms. Flowers of A. officinalis and leaves of T. cordata and P. guaja have been used to treat cough, sore throat, catarrh, oral and pharyngeal mucosa irritation. Therefore, this study was d...
[ { "created": "Tue, 19 Jan 2021 20:34:55 GMT", "version": "v1" } ]
2021-02-09
[ [ "Qaralleh", "H. A", "" ], [ "Al-Limoun", "M. O.", "" ], [ "Khlaifat", "A.", "" ], [ "Khleifat", "K. M.", "" ], [ "Al-Tawarah", "N.", "" ], [ "Alsharafa", "K. Y.", "" ], [ "Abu-Harirah", "H. A.", "" ] ]
The plants, Althaea officinalis, Tilia cordata and Psidium guaja have been used traditionally to treat respiratory infection symptoms. Flowers of A. officinalis and leaves of T. cordata and P. guaja have been used to treat cough, sore throat, catarrh, oral and pharyngeal mucosa irritation. Therefore, this study was des...
1603.03752
Luca Ferreri
Luca Ferreri and Paolo Bajardi and Mario Giacobini
Non-systemic transmission of tick-borne diseases: a network approach
15 pages, 4 figures, to be published in Communications in Nonlinear Science and Numerical Simulation
Communications in Nonlinear Science and Numerical Simulations, Volume 39, October 2016, pages 149-155
10.1016/j.cnsns.2016.02.034
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Tick-Borne diseases can be transmitted via non-systemic (NS) transmission. This occurs when tick gets the infection by co-feeding with infected ticks on the same host resulting in a direct pathogen transmission between the vectors, without infecting the host. This transmission is peculiar, as it does not require any ...
[ { "created": "Fri, 11 Mar 2016 20:38:14 GMT", "version": "v1" } ]
2017-07-11
[ [ "Ferreri", "Luca", "" ], [ "Bajardi", "Paolo", "" ], [ "Giacobini", "Mario", "" ] ]
Tick-Borne diseases can be transmitted via non-systemic (NS) transmission. This occurs when tick gets the infection by co-feeding with infected ticks on the same host resulting in a direct pathogen transmission between the vectors, without infecting the host. This transmission is peculiar, as it does not require any sy...
1503.02117
Tatiana Tatarinova
Konstantin Kozlov, Dmitry Chebotarov, Mehedi Hassan, Martin Triska, Petr Triska, Pavel Flegontov, Tatiana Tatarinova
Differential Evolution Approach to Detect Recent Admixture
presented at ISMB 2014, VariSIG
BMC Genomics 2015, 16(Suppl 8):S9
10.1186/1471-2164-16-S8-S9
null
q-bio.GN q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The genetic structure of human populations is extraordinarily complex and of fundamental importance to studies of anthropology, evolution, and medicine. As increasingly many individuals are of mixed origin, there is an unmet need for tools that can infer multiple origins. Misclassification of such individuals can l...
[ { "created": "Sat, 7 Mar 2015 01:43:14 GMT", "version": "v1" } ]
2015-08-26
[ [ "Kozlov", "Konstantin", "" ], [ "Chebotarov", "Dmitry", "" ], [ "Hassan", "Mehedi", "" ], [ "Triska", "Martin", "" ], [ "Triska", "Petr", "" ], [ "Flegontov", "Pavel", "" ], [ "Tatarinova", "Tatiana", "" ...
The genetic structure of human populations is extraordinarily complex and of fundamental importance to studies of anthropology, evolution, and medicine. As increasingly many individuals are of mixed origin, there is an unmet need for tools that can infer multiple origins. Misclassification of such individuals can lead ...
0904.1365
Simon Mitternacht
Anders Irb\"ack, Simon Mitternacht, Sandipan Mohanty
An effective all-atom potential for proteins
null
PMC Biophysics 2009, 2:2
null
null
q-bio.BM cond-mat.soft
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe and test an implicit solvent all-atom potential for simulations of protein folding and aggregation. The potential is developed through studies of structural and thermodynamic properties of 17 peptides with diverse secondary structure. Results obtained using the final form of the potential are presented fo...
[ { "created": "Wed, 8 Apr 2009 16:05:27 GMT", "version": "v1" } ]
2009-04-09
[ [ "Irbäck", "Anders", "" ], [ "Mitternacht", "Simon", "" ], [ "Mohanty", "Sandipan", "" ] ]
We describe and test an implicit solvent all-atom potential for simulations of protein folding and aggregation. The potential is developed through studies of structural and thermodynamic properties of 17 peptides with diverse secondary structure. Results obtained using the final form of the potential are presented for ...
2303.11833
Hyunseung Kim
Hyunseung Kim (1), Haeyeon Choi (2), Dongju Kang (1), Won Bo Lee (1), Jonggeol Na (2) ((1) Seoul National University, (2) Ewha Womans University)
Materials Discovery with Extreme Properties via Reinforcement Learning-Guided Combinatorial Chemistry
18 pages, 8 figures
Chemical Science, 2024
10.1039/D3SC05281H
null
q-bio.BM cs.LG
http://creativecommons.org/licenses/by-nc-sa/4.0/
The goal of most materials discovery is to discover materials that are superior to those currently known. Fundamentally, this is close to extrapolation, which is a weak point for most machine learning models that learn the probability distribution of data. Herein, we develop reinforcement learning-guided combinatoria...
[ { "created": "Tue, 21 Mar 2023 13:21:43 GMT", "version": "v1" }, { "created": "Tue, 7 May 2024 15:07:34 GMT", "version": "v2" } ]
2024-05-08
[ [ "Kim", "Hyunseung", "", "Seoul National University" ], [ "Choi", "Haeyeon", "", "Ewha Womans University" ], [ "Kang", "Dongju", "", "Seoul National University" ], [ "Lee", "Won Bo", "", "Seoul National University" ], [ "Na", "...
The goal of most materials discovery is to discover materials that are superior to those currently known. Fundamentally, this is close to extrapolation, which is a weak point for most machine learning models that learn the probability distribution of data. Herein, we develop reinforcement learning-guided combinatorial ...
1206.0959
Mary Ann Blaetke
Mary Ann Bl\"atke, Anna Dittrich, Christian Rohr, Monika Heiner, Fred Schaper, Wolfgang Marwan
JAK/STAT signalling - an executable model assembled from molecule-centred modules demonstrating a module-oriented database concept for systems- and synthetic biology
54 pages, 12 figures, 2 tables
null
null
null
q-bio.MN
http://creativecommons.org/licenses/by/3.0/
We describe a molecule-oriented modelling approach based on a collection of Petri net models organized in the form of modules into a prototype database accessible through a web interface. The JAK/STAT signalling pathway with the extensive cross-talk of its components is selected as case study. Each Petri net module r...
[ { "created": "Tue, 5 Jun 2012 15:21:49 GMT", "version": "v1" } ]
2012-06-06
[ [ "Blätke", "Mary Ann", "" ], [ "Dittrich", "Anna", "" ], [ "Rohr", "Christian", "" ], [ "Heiner", "Monika", "" ], [ "Schaper", "Fred", "" ], [ "Marwan", "Wolfgang", "" ] ]
We describe a molecule-oriented modelling approach based on a collection of Petri net models organized in the form of modules into a prototype database accessible through a web interface. The JAK/STAT signalling pathway with the extensive cross-talk of its components is selected as case study. Each Petri net module rep...
1901.11246
Michael B\"orsch
Anika Westphal, Hendrik Sielaff, Stefanie Reuter, Thomas Heitkamp, Ralf Mrowka, Michael B\"orsch
Ligand-induced oligomerization of the human GPCR neurotensin receptor 1 monitored in living HEK293T cells
12 pages, 5 figures
null
null
null
q-bio.BM physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The human neurotensin receptor 1 (NTSR1) is a G protein-coupled receptor that can be expressed in HEK293T cells by stable transfection. Its ligand is a 13-amino-acid peptide that binds with nanomolar affinity from the extracellular side to NTSR1. Ligand binding induces conformational changes that trigger the intracel...
[ { "created": "Thu, 31 Jan 2019 07:38:07 GMT", "version": "v1" } ]
2019-02-01
[ [ "Westphal", "Anika", "" ], [ "Sielaff", "Hendrik", "" ], [ "Reuter", "Stefanie", "" ], [ "Heitkamp", "Thomas", "" ], [ "Mrowka", "Ralf", "" ], [ "Börsch", "Michael", "" ] ]
The human neurotensin receptor 1 (NTSR1) is a G protein-coupled receptor that can be expressed in HEK293T cells by stable transfection. Its ligand is a 13-amino-acid peptide that binds with nanomolar affinity from the extracellular side to NTSR1. Ligand binding induces conformational changes that trigger the intracellu...
1706.07789
Peter Hufton
Peter G. Hufton, Yen Ting Lin, and Tobias Galla
Phenotypic switching of populations of cells in a stochastic environment
17 pages, 6 figures
null
10.1088/1742-5468/aaa78e
null
q-bio.PE physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In biology phenotypic switching is a common bet-hedging strategy in the face of uncertain environmental conditions. Existing mathematical models often focus on periodically changing environments to determine the optimal phenotypic response. We focus on the case in which the environment switches randomly between discr...
[ { "created": "Fri, 23 Jun 2017 17:52:32 GMT", "version": "v1" }, { "created": "Fri, 5 Jan 2018 17:42:23 GMT", "version": "v2" } ]
2018-03-14
[ [ "Hufton", "Peter G.", "" ], [ "Lin", "Yen Ting", "" ], [ "Galla", "Tobias", "" ] ]
In biology phenotypic switching is a common bet-hedging strategy in the face of uncertain environmental conditions. Existing mathematical models often focus on periodically changing environments to determine the optimal phenotypic response. We focus on the case in which the environment switches randomly between discret...
1801.08085
Meysam Golmohammadi
Vinit Shah, Eva von Weltin, Silvia Lopez, James Riley McHugh, Lily Veloso, Meysam Golmohammadi, Iyad Obeid and Joseph Picone
The Temple University Hospital Seizure Detection Corpus
Under review in Frontiers in Neuroscience
null
null
null
q-bio.QM eess.SP q-bio.NC stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce the TUH EEG Seizure Corpus (TUSZ), which is the largest open source corpus of its type, and represents an accurate characterization of clinical conditions. In this paper, we describe the techniques used to develop TUSZ, evaluate their effectiveness, and present some descriptive statistics on the resultin...
[ { "created": "Wed, 3 Jan 2018 01:16:26 GMT", "version": "v1" } ]
2018-01-25
[ [ "Shah", "Vinit", "" ], [ "von Weltin", "Eva", "" ], [ "Lopez", "Silvia", "" ], [ "McHugh", "James Riley", "" ], [ "Veloso", "Lily", "" ], [ "Golmohammadi", "Meysam", "" ], [ "Obeid", "Iyad", "" ], [ ...
We introduce the TUH EEG Seizure Corpus (TUSZ), which is the largest open source corpus of its type, and represents an accurate characterization of clinical conditions. In this paper, we describe the techniques used to develop TUSZ, evaluate their effectiveness, and present some descriptive statistics on the resulting ...
q-bio/0411043
Lucilla de Arcangelis
Lucilla de Arcangelis, Hans J. Herrmann and Carla Perrone-Capano
Activity-dependent brain model explaining EEG spectra
null
null
null
null
q-bio.NC
null
Most brain models focus on associative memory or calculation capability, experimentally inaccessible using physiological methods. Here we present a model explaining a basic feature of electroencephalograms (EEG). Our model is based on an electrical network with threshold firing and plasticity of synapses that reprodu...
[ { "created": "Tue, 23 Nov 2004 17:56:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "de Arcangelis", "Lucilla", "" ], [ "Herrmann", "Hans J.", "" ], [ "Perrone-Capano", "Carla", "" ] ]
Most brain models focus on associative memory or calculation capability, experimentally inaccessible using physiological methods. Here we present a model explaining a basic feature of electroencephalograms (EEG). Our model is based on an electrical network with threshold firing and plasticity of synapses that reproduce...
q-bio/0412049
Carlos Escudero
Carlos Escudero
Particle Statistics and Population Dynamics
null
null
10.1016/j.physa.2005.02.021
null
q-bio.PE cond-mat.stat-mech q-bio.QM
null
We study a master equation system modelling a population dynamics problem in a lattice. The problem is the calculation of the minimum size of a refuge that can protect a population from hostile external conditions, the so called critical patch size problem. We analize both cases in which the particles are considered ...
[ { "created": "Thu, 30 Dec 2004 11:15:37 GMT", "version": "v1" } ]
2009-11-10
[ [ "Escudero", "Carlos", "" ] ]
We study a master equation system modelling a population dynamics problem in a lattice. The problem is the calculation of the minimum size of a refuge that can protect a population from hostile external conditions, the so called critical patch size problem. We analize both cases in which the particles are considered fe...
0807.4040
Florian Hartig
Florian Hartig and Martin Drechsler
The time horizon and its role in multiple species conservation planning
8 pages, 5 figures. Minor changes to v1. This version corredponds to the final publication in Biological Conservation
Biological Conservation, 2008, 141, 2625-2631
10.1016/j.biocon.2008.07.028
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Survival probability within a certain time horizon T is a common measure of population viability. The choice of T implicitly involves a time preference, similar to economic discounting: Conservation success is evaluated at the time horizon T, while all effects that occur later than T are not considered. Despite the o...
[ { "created": "Fri, 25 Jul 2008 10:07:52 GMT", "version": "v1" }, { "created": "Fri, 26 Sep 2008 14:50:13 GMT", "version": "v2" } ]
2008-09-26
[ [ "Hartig", "Florian", "" ], [ "Drechsler", "Martin", "" ] ]
Survival probability within a certain time horizon T is a common measure of population viability. The choice of T implicitly involves a time preference, similar to economic discounting: Conservation success is evaluated at the time horizon T, while all effects that occur later than T are not considered. Despite the obv...
1001.0653
Enrico Carlon
J. Hooyberghs, P. Van Hummelen, E. Carlon
The effects of mismatches on hybridization in DNA microarrays: determination of nearest neighbor parameters
31 pages, 5 figures
Nucleic Acid Research 37, e53 (2009)
10.1093/nar/gkp109
null
q-bio.BM q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantifying interactions in DNA microarrays is of central importance for a better understanding of their functioning. Hybridization thermodynamics for nucleic acid strands in aqueous solution can be described by the so-called nearest-neighbor model, which estimates the hybridization free energy of a given sequence as...
[ { "created": "Tue, 5 Jan 2010 09:09:18 GMT", "version": "v1" } ]
2010-01-06
[ [ "Hooyberghs", "J.", "" ], [ "Van Hummelen", "P.", "" ], [ "Carlon", "E.", "" ] ]
Quantifying interactions in DNA microarrays is of central importance for a better understanding of their functioning. Hybridization thermodynamics for nucleic acid strands in aqueous solution can be described by the so-called nearest-neighbor model, which estimates the hybridization free energy of a given sequence as a...
2401.08004
Tinghe Zhang
Ting-He Zhang, Sumin Jo, Michelle Zhang, Kai Wang, Shou-Jiang Gao and Yufei Huang
Understanding YTHDF2-mediated mRNA Degradation By m6A-BERT-Deg
null
null
null
null
q-bio.MN
http://creativecommons.org/licenses/by/4.0/
N6-methyladenosine (m6A) is the most abundant mRNA modification within mammalian cells, holding pivotal significance in the regulation of mRNA stability, translation, and splicing. Furthermore, it plays a critical role in the regulation of RNA degradation by primarily recruiting the YTHDF2 reader protein. However, th...
[ { "created": "Mon, 15 Jan 2024 23:15:55 GMT", "version": "v1" } ]
2024-01-17
[ [ "Zhang", "Ting-He", "" ], [ "Jo", "Sumin", "" ], [ "Zhang", "Michelle", "" ], [ "Wang", "Kai", "" ], [ "Gao", "Shou-Jiang", "" ], [ "Huang", "Yufei", "" ] ]
N6-methyladenosine (m6A) is the most abundant mRNA modification within mammalian cells, holding pivotal significance in the regulation of mRNA stability, translation, and splicing. Furthermore, it plays a critical role in the regulation of RNA degradation by primarily recruiting the YTHDF2 reader protein. However, the ...
1409.6384
Alejandro Ochoa
Alejandro Ochoa, John D. Storey, Manuel Llin\'as, and Mona Singh
Beyond the E-value: stratified statistics for protein domain prediction
31 pages, 8 figures, does not include supplementary files
null
10.1371/journal.pcbi.1004509
null
q-bio.GN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
E-values have been the dominant statistic for protein sequence analysis for the past two decades: from identifying statistically significant local sequence alignments to evaluating matches to hidden Markov models describing protein domain families. Here we formally show that for "stratified" multiple hypothesis testi...
[ { "created": "Tue, 23 Sep 2014 01:27:56 GMT", "version": "v1" }, { "created": "Mon, 23 Mar 2015 19:57:37 GMT", "version": "v2" } ]
2016-02-17
[ [ "Ochoa", "Alejandro", "" ], [ "Storey", "John D.", "" ], [ "Llinás", "Manuel", "" ], [ "Singh", "Mona", "" ] ]
E-values have been the dominant statistic for protein sequence analysis for the past two decades: from identifying statistically significant local sequence alignments to evaluating matches to hidden Markov models describing protein domain families. Here we formally show that for "stratified" multiple hypothesis testing...
1006.0480
Vern Williams MR
Vernon Williams
Mathematical Demonstration of Darwinian Theory of Evolution
Keywords: eye evolution, computer eye simulation, simulation of Darwin's Theory
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Darwin's book, Origin of the Species has been a source of public controversy for more than hundred and fifty years. Court cases and mountains of words have not dispelled this controversy. In this paper, a quantitative approach using simple mathematics shows that the concept of evolution by natural selection using onl...
[ { "created": "Thu, 3 Jun 2010 10:32:07 GMT", "version": "v1" } ]
2010-06-04
[ [ "Williams", "Vernon", "" ] ]
Darwin's book, Origin of the Species has been a source of public controversy for more than hundred and fifty years. Court cases and mountains of words have not dispelled this controversy. In this paper, a quantitative approach using simple mathematics shows that the concept of evolution by natural selection using only ...
0911.2021
Stefano Allesina
Stefano Allesina
Predicting trophic relations in ecological networks: a test of the Allometric Diet Breadth Model
28 pages, 3 figures, 4 tables
null
null
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Few of food web theory hypotheses/predictions can be readily tested using empirical data. An exception is represented by simple probabilistic models for food web structure, for which the likelihood has been derived. Here I test the performance of a more complex model for food web structure that is grounded in the all...
[ { "created": "Tue, 10 Nov 2009 22:29:43 GMT", "version": "v1" } ]
2009-11-12
[ [ "Allesina", "Stefano", "" ] ]
Few of food web theory hypotheses/predictions can be readily tested using empirical data. An exception is represented by simple probabilistic models for food web structure, for which the likelihood has been derived. Here I test the performance of a more complex model for food web structure that is grounded in the allom...
2109.14751
Young Joon Suh
Young Joon Suh (1), Mrinal Pandey (1), Jeffrey E Segall (2), Mingming Wu (1) ((1) Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA (2) Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, USA)
Tumor Spheroid Chemotaxis in Epidermal Growth Factor Gradients Revealed by a 3D Microfluidic Device
12 pages, 4 figures, and 3 supplementary figures
null
10.1088/1478-3975/ac54c7
null
q-bio.CB
http://creativecommons.org/licenses/by/4.0/
Epidermal growth factor (EGF), a potent cytokine, is known to promote tumor invasion both in vivo and in vitro. Previously, we observed that single breast tumor cells (MDA-MB-231 cell line) embedded within a 3D collagen matrix displayed enhanced motility but no discernible chemotaxis in the presence of linear EGF gra...
[ { "created": "Wed, 29 Sep 2021 22:53:21 GMT", "version": "v1" } ]
2022-03-23
[ [ "Suh", "Young Joon", "" ], [ "Pandey", "Mrinal", "" ], [ "Segall", "Jeffrey E", "" ], [ "Wu", "Mingming", "" ] ]
Epidermal growth factor (EGF), a potent cytokine, is known to promote tumor invasion both in vivo and in vitro. Previously, we observed that single breast tumor cells (MDA-MB-231 cell line) embedded within a 3D collagen matrix displayed enhanced motility but no discernible chemotaxis in the presence of linear EGF gradi...
1911.03221
Valentin Thorey
Antoine Guillot, Fabien Sauvet, Emmanuel H During and Valentin Thorey
Dreem Open Datasets: Multi-Scored Sleep Datasets to compare Human and Automated sleep staging
10 pages, journal submitted
null
null
null
q-bio.QM cs.LG eess.SP stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sleep stage classification constitutes an important element of sleep disorder diagnosis. It relies on the visual inspection of polysomnography records by trained sleep technologists. Automated approaches have been designed to alleviate this resource-intensive task. However, such approaches are usually compared to a s...
[ { "created": "Thu, 31 Oct 2019 16:12:43 GMT", "version": "v1" }, { "created": "Tue, 12 Nov 2019 17:21:23 GMT", "version": "v2" }, { "created": "Mon, 2 Mar 2020 16:53:12 GMT", "version": "v3" }, { "created": "Mon, 27 Apr 2020 09:45:45 GMT", "version": "v4" } ]
2020-04-28
[ [ "Guillot", "Antoine", "" ], [ "Sauvet", "Fabien", "" ], [ "During", "Emmanuel H", "" ], [ "Thorey", "Valentin", "" ] ]
Sleep stage classification constitutes an important element of sleep disorder diagnosis. It relies on the visual inspection of polysomnography records by trained sleep technologists. Automated approaches have been designed to alleviate this resource-intensive task. However, such approaches are usually compared to a sin...
2402.02520
Linn\'ea Gyllingberg
Linn\'ea Gyllingberg, Yu Tian, and David J.T. Sumpter
A minimal model of cognition based on oscillatory and reinforcement processes
null
null
null
null
q-bio.NC cs.SI math.DS nlin.AO physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Building mathematical models of brains is difficult because of the sheer complexity of the problem. One potential starting point is through basal cognition, which give abstract representation of a range of organisms without central nervous systems, including fungi, slime moulds and bacteria. We propose one such model...
[ { "created": "Sun, 4 Feb 2024 15:08:02 GMT", "version": "v1" }, { "created": "Thu, 13 Jun 2024 14:45:47 GMT", "version": "v2" } ]
2024-06-14
[ [ "Gyllingberg", "Linnéa", "" ], [ "Tian", "Yu", "" ], [ "Sumpter", "David J. T.", "" ] ]
Building mathematical models of brains is difficult because of the sheer complexity of the problem. One potential starting point is through basal cognition, which give abstract representation of a range of organisms without central nervous systems, including fungi, slime moulds and bacteria. We propose one such model, ...
1906.05556
Sungchan Kim
Sungchan Kim, Jong Hyuk Byun and Il Hyo Jung
Global Stability of an SEIR Epidemic Model where Empirical Distribution of Incubation Period has Approximated by Coxian Distribution
null
Adv Differ Equ (2019) 2019: 469
10.1186/s13662-019-2405-9
null
q-bio.PE math.DS physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we have developed a Coxian distributed SEIR model in incorporating an empirical incubation period. We show that the global dynamics are completely determined by a basic reproduction number. An application of the Coxian distributed SEIR model using data of an empirical incubation period is explored. The ...
[ { "created": "Thu, 13 Jun 2019 09:10:29 GMT", "version": "v1" }, { "created": "Mon, 19 Aug 2019 11:54:48 GMT", "version": "v2" } ]
2019-11-20
[ [ "Kim", "Sungchan", "" ], [ "Byun", "Jong Hyuk", "" ], [ "Jung", "Il Hyo", "" ] ]
In this work, we have developed a Coxian distributed SEIR model in incorporating an empirical incubation period. We show that the global dynamics are completely determined by a basic reproduction number. An application of the Coxian distributed SEIR model using data of an empirical incubation period is explored. The mo...
1505.07170
Cesar F. Caiafa
Cesar F. Caiafa and Franco Pestilli
Sparse multiway decomposition for analysis and modeling of diffusion imaging and tractography
19 pages, 1 table, 9 figures
null
null
null
q-bio.QM math.NA stat.ME
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The number of neuroimaging data sets publicly available is growing at fast rate. The increase in availability and resolution of neuroimaging data requires modern approaches to signal processing for data analysis and results validation. We introduce the application of sparse multiway decomposition methods (Caiafa and ...
[ { "created": "Wed, 27 May 2015 01:21:37 GMT", "version": "v1" } ]
2015-05-28
[ [ "Caiafa", "Cesar F.", "" ], [ "Pestilli", "Franco", "" ] ]
The number of neuroimaging data sets publicly available is growing at fast rate. The increase in availability and resolution of neuroimaging data requires modern approaches to signal processing for data analysis and results validation. We introduce the application of sparse multiway decomposition methods (Caiafa and Ci...
2011.00485
Marco Wiering
Xiangxie Zhang, Ben Beinke, Berlian Al Kindhi and Marco Wiering
Comparing Machine Learning Algorithms with or without Feature Extraction for DNA Classification
17 pages
null
null
null
q-bio.OT cs.AI cs.LG
http://creativecommons.org/licenses/by/4.0/
The classification of DNA sequences is a key research area in bioinformatics as it enables researchers to conduct genomic analysis and detect possible diseases. In this paper, three state-of-the-art algorithms, namely Convolutional Neural Networks, Deep Neural Networks, and N-gram Probabilistic Models, are used for t...
[ { "created": "Sun, 1 Nov 2020 12:04:54 GMT", "version": "v1" } ]
2020-11-03
[ [ "Zhang", "Xiangxie", "" ], [ "Beinke", "Ben", "" ], [ "Kindhi", "Berlian Al", "" ], [ "Wiering", "Marco", "" ] ]
The classification of DNA sequences is a key research area in bioinformatics as it enables researchers to conduct genomic analysis and detect possible diseases. In this paper, three state-of-the-art algorithms, namely Convolutional Neural Networks, Deep Neural Networks, and N-gram Probabilistic Models, are used for the...
1010.1191
Thomas Adams
Thomas Adams \ast (1), Graeme Ackland (1), Glenn Marion (2) and Colin Edwards (3) ((1) School of Physics and Astronomy, The University of Edinburgh, (2) Biomathematics and Statistics Scotland,(3) Forest Research, Northern Research Station)
Effects of local interaction and dispersal on the dynamics of size-structured populations
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Traditional approaches to ecosystem modelling have relied on spatially homogeneous approximations to interaction, growth and death. More recently, spatial interaction and dispersal have also been considered. While these leads to certain changes in community dynamics, their effect is sometimes fairly minimal, and demo...
[ { "created": "Wed, 6 Oct 2010 16:28:11 GMT", "version": "v1" } ]
2010-10-07
[ [ "\\ast", "Thomas Adams", "" ], [ "Ackland", "Graeme", "" ], [ "Marion", "Glenn", "" ], [ "Edwards", "Colin", "" ] ]
Traditional approaches to ecosystem modelling have relied on spatially homogeneous approximations to interaction, growth and death. More recently, spatial interaction and dispersal have also been considered. While these leads to certain changes in community dynamics, their effect is sometimes fairly minimal, and demogr...