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1310.4232
Alexander Goltsev
K.-E. Lee, M. A. Lopes, J. F. F. Mendes, and A. V. Goltsev
Critical phenomena and noise-induced phase transitions in neuronal networks
15 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:1304.3237
Phys. Rev. E. 89, 012701 (2014)
10.1103/PhysRevE.89.012701
null
q-bio.NC nlin.AO physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study numerically and analytically first- and second-order phase transitions in neuronal networks stimulated by shot noise (a flow of random spikes bombarding neurons). Using an exactly solvable cortical model of neuronal networks on classical random networks, we find critical phenomena accompanying the transition...
[ { "created": "Wed, 16 Oct 2013 00:42:29 GMT", "version": "v1" } ]
2015-08-25
[ [ "Lee", "K. -E.", "" ], [ "Lopes", "M. A.", "" ], [ "Mendes", "J. F. F.", "" ], [ "Goltsev", "A. V.", "" ] ]
We study numerically and analytically first- and second-order phase transitions in neuronal networks stimulated by shot noise (a flow of random spikes bombarding neurons). Using an exactly solvable cortical model of neuronal networks on classical random networks, we find critical phenomena accompanying the transitions ...
2311.00616
Steffen Werner
W. Mathijs Rozemuller, Steffen Werner, Antonio Carlos Costa, Liam O'Shaughnessy, Greg J. Stephens, Thomas S. Shimizu
Statistics of C. elegans turning behavior reveals optimality under biasing constraints
32 pages, 17 figures
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Animal locomotion is often subject to constraints arising from anatomical/physiological asymmetries. We use the nematode C.~elegans as a minimal model system to ask whether such constraints might shape locomotion patterns optimized during evolution. We focus on turning behaviours in two contrasting environmental cont...
[ { "created": "Wed, 1 Nov 2023 16:08:26 GMT", "version": "v1" }, { "created": "Mon, 15 Jan 2024 11:58:02 GMT", "version": "v2" } ]
2024-01-17
[ [ "Rozemuller", "W. Mathijs", "" ], [ "Werner", "Steffen", "" ], [ "Costa", "Antonio Carlos", "" ], [ "O'Shaughnessy", "Liam", "" ], [ "Stephens", "Greg J.", "" ], [ "Shimizu", "Thomas S.", "" ] ]
Animal locomotion is often subject to constraints arising from anatomical/physiological asymmetries. We use the nematode C.~elegans as a minimal model system to ask whether such constraints might shape locomotion patterns optimized during evolution. We focus on turning behaviours in two contrasting environmental contex...
q-bio/0602023
Gyorgy Korniss
Lauren O'Malley, James Basham, Joseph A. Yasi, G. Korniss, Andrew Allstadt, and Tom Caraco
Invasive advance of an advantageous mutation: nucleation theory
null
Theoretical Population Biology, 70, 464-478 (2006).
10.1016/j.tpb.2006.06.006
null
q-bio.PE cond-mat.stat-mech
null
For most organisms with viscous population structure, spatially localized growth drives the invasive advance of a favorable mutation. We model a two-allele competition where recurrent mutation introduces a genotype with a rate of local propagation exceeding the resident's rate. We capture ecologically important prope...
[ { "created": "Wed, 22 Feb 2006 22:25:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "O'Malley", "Lauren", "" ], [ "Basham", "James", "" ], [ "Yasi", "Joseph A.", "" ], [ "Korniss", "G.", "" ], [ "Allstadt", "Andrew", "" ], [ "Caraco", "Tom", "" ] ]
For most organisms with viscous population structure, spatially localized growth drives the invasive advance of a favorable mutation. We model a two-allele competition where recurrent mutation introduces a genotype with a rate of local propagation exceeding the resident's rate. We capture ecologically important propert...
1409.1637
Toru Aonishi
Kazuhiko Morinaga, Ryota Miyata and Toru Aonishi
Optimal Colored Noise for Estimating Phase Response Curves
12 pages, 4 figures
J. Phys. Soc. Jpn., 84(9): 094801 (2015)
10.7566/JPSJ.84.094801
null
q-bio.QM nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phase response curve (PRC) is an important measure representing the interaction between oscillatory elements. To understand synchrony in biological systems, many research groups have sought to measure PRCs directly from biological cells including neurons. Ermentrout et al. and Ota et al. showed that PRCs can be i...
[ { "created": "Fri, 5 Sep 2014 01:11:26 GMT", "version": "v1" }, { "created": "Wed, 7 Jan 2015 07:55:33 GMT", "version": "v2" }, { "created": "Mon, 6 Jul 2015 03:30:50 GMT", "version": "v3" } ]
2015-08-03
[ [ "Morinaga", "Kazuhiko", "" ], [ "Miyata", "Ryota", "" ], [ "Aonishi", "Toru", "" ] ]
The phase response curve (PRC) is an important measure representing the interaction between oscillatory elements. To understand synchrony in biological systems, many research groups have sought to measure PRCs directly from biological cells including neurons. Ermentrout et al. and Ota et al. showed that PRCs can be ide...
2103.15182
Pan Wang
Pan Wang, Danlin Peng, Simiao Yu, Chao Wu, Peter Childs, Yike Guo and Ling Li
Verifying Design through Generative Visualization of Neural Activities
null
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Current neuroscience focused approaches for evaluating the effectiveness of a design do not use direct visualisation of mental activity. A recurrent neural network is used as the encoder to learn latent representation from electroencephalogram (EEG) signals, recorded while subjects looked at 50 categories of images. ...
[ { "created": "Sun, 28 Mar 2021 17:42:21 GMT", "version": "v1" } ]
2021-03-30
[ [ "Wang", "Pan", "" ], [ "Peng", "Danlin", "" ], [ "Yu", "Simiao", "" ], [ "Wu", "Chao", "" ], [ "Childs", "Peter", "" ], [ "Guo", "Yike", "" ], [ "Li", "Ling", "" ] ]
Current neuroscience focused approaches for evaluating the effectiveness of a design do not use direct visualisation of mental activity. A recurrent neural network is used as the encoder to learn latent representation from electroencephalogram (EEG) signals, recorded while subjects looked at 50 categories of images. A ...
1709.01852
Marcos Amaku
Eduardo Massad, Marcos Amaku, Francisco Antonio Bezerra Coutinho, Claudio Jos\'e Struchiner, Luis Fernandez Lopez, Annelies Wilder-Smith and Marcelo Nascimento Burattini
Estimating the Size of Aedes aegypti Populations from Dengue Incidence Data: Implications for the Risk of Yellow Fever, Zika Virus and Chikungunya Outbreaks
31 pages, 9 figures
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present a model to estimate the density of aedes mosquitoes in a community affected by dengue. The model is based on the fitting of a continuous function to the incidence of dengue infections, from which the density of infected mosquitoes is derived straightforwardly. Further derivations allows the c...
[ { "created": "Wed, 6 Sep 2017 15:09:31 GMT", "version": "v1" }, { "created": "Thu, 26 Oct 2017 16:11:47 GMT", "version": "v2" }, { "created": "Tue, 7 Nov 2017 16:04:14 GMT", "version": "v3" } ]
2017-11-08
[ [ "Massad", "Eduardo", "" ], [ "Amaku", "Marcos", "" ], [ "Coutinho", "Francisco Antonio Bezerra", "" ], [ "Struchiner", "Claudio José", "" ], [ "Lopez", "Luis Fernandez", "" ], [ "Wilder-Smith", "Annelies", "" ], [ ...
In this paper we present a model to estimate the density of aedes mosquitoes in a community affected by dengue. The model is based on the fitting of a continuous function to the incidence of dengue infections, from which the density of infected mosquitoes is derived straightforwardly. Further derivations allows the cal...
2108.06264
Marta Bienkiewicz Dr
M. M. N. Bie\'nkiewicz (1), A. Smykovskyi (1), T. Olugbade (2), S. Janaqi (1), A. Camurri (3), N. Bianchi-Berthouze (2), M. Bj\"orkman (4), B. G. Bardy (1) ((1) EuroMov Digital Health in Motion Univ. Montpellier IMT Mines Ales France, (2) UCL, University College of London UK, (3) UNIGE InfoMus Casa Paganini Ita...
Bridging the gap between emotion and joint action
Pages 44, Figures 6, Table 1, Article in press, Neuroscience and Biobehavioral Reviews
null
null
null
q-bio.NC cs.LG cs.MA cs.RO math.DS
http://creativecommons.org/licenses/by/4.0/
Our daily human life is filled with a myriad of joint action moments, be it children playing, adults working together (i.e., team sports), or strangers navigating through a crowd. Joint action brings individuals (and embodiment of their emotions) together, in space and in time. Yet little is known about how individua...
[ { "created": "Fri, 13 Aug 2021 14:21:37 GMT", "version": "v1" } ]
2021-08-16
[ [ "Bieńkiewicz", "M. M. N.", "" ], [ "Smykovskyi", "A.", "" ], [ "Olugbade", "T.", "" ], [ "Janaqi", "S.", "" ], [ "Camurri", "A.", "" ], [ "Bianchi-Berthouze", "N.", "" ], [ "Björkman", "M.", "" ], [ ...
Our daily human life is filled with a myriad of joint action moments, be it children playing, adults working together (i.e., team sports), or strangers navigating through a crowd. Joint action brings individuals (and embodiment of their emotions) together, in space and in time. Yet little is known about how individual ...
2102.12299
Jennifer Loria Sorio
Vinicius V. L. Albani, Jennifer Loria, Eduardo Massad and Jorge P. Zubelli
The Impact of COVID-19 Vaccination Delay: A Modelling Study for Chicago and NYC Data
21 pages, 6 figures, 3 tables
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by-nc-nd/4.0/
Background: By the beginning of December 2020, some vaccines against COVID-19 already presented efficacy and security, which qualify them to be used in mass vaccination campaigns. Thus, setting up strategies of vaccination became crucial to control the COVID19 pandemic. Methods: We use daily COVID-19 reports from Chi...
[ { "created": "Wed, 24 Feb 2021 14:29:30 GMT", "version": "v1" } ]
2021-02-25
[ [ "Albani", "Vinicius V. L.", "" ], [ "Loria", "Jennifer", "" ], [ "Massad", "Eduardo", "" ], [ "Zubelli", "Jorge P.", "" ] ]
Background: By the beginning of December 2020, some vaccines against COVID-19 already presented efficacy and security, which qualify them to be used in mass vaccination campaigns. Thus, setting up strategies of vaccination became crucial to control the COVID19 pandemic. Methods: We use daily COVID-19 reports from Chica...
1910.09510
Emmanuelle Jousselin
Emmanuelle Jousselin, Marianne Elias
Testing host-plant driven speciation in phytophagous insects : a phylogenetic perspective
35 pages, 3 figures, 2 tables. Peer-reviewed and recommended by PCI Evolutionary Biology (2019)
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
During the last two decades, ecological speciation has been a major research theme in evolutionary biology. Ecological speciation occurs when reproductive isolation between populations evolves as a result of niche differentiation. Phytophagous insects represent model systems for the study of this evolutionary process...
[ { "created": "Mon, 21 Oct 2019 16:58:23 GMT", "version": "v1" }, { "created": "Wed, 23 Oct 2019 08:55:08 GMT", "version": "v2" } ]
2019-10-24
[ [ "Jousselin", "Emmanuelle", "" ], [ "Elias", "Marianne", "" ] ]
During the last two decades, ecological speciation has been a major research theme in evolutionary biology. Ecological speciation occurs when reproductive isolation between populations evolves as a result of niche differentiation. Phytophagous insects represent model systems for the study of this evolutionary process. ...
2301.05782
Steven Rossi
Steven P. Rossi, Sean P. Cox, Samuel D.N. Johnson, Ashleen J. Benson
Evaluating the sustainability of a de facto harvest strategy for British Columbia's Spot Prawn (Pandalus platyceros) fishery in the presence of environmental drivers of recruitment and hyperstable catch rates
86 pages, 12 figures, 33 appendix figures
null
null
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Spot Prawn trap fishery off the west coast of British Columbia (BC) is managed using a fixed escapement strategy that aims to prevent recruitment overfishing while maximizing expected long-term yield by closing the fishery when the catch rate of spawners, projected to the following spring, drops below 1.7 spawner...
[ { "created": "Fri, 13 Jan 2023 22:56:21 GMT", "version": "v1" } ]
2023-01-18
[ [ "Rossi", "Steven P.", "" ], [ "Cox", "Sean P.", "" ], [ "Johnson", "Samuel D. N.", "" ], [ "Benson", "Ashleen J.", "" ] ]
The Spot Prawn trap fishery off the west coast of British Columbia (BC) is managed using a fixed escapement strategy that aims to prevent recruitment overfishing while maximizing expected long-term yield by closing the fishery when the catch rate of spawners, projected to the following spring, drops below 1.7 spawners ...
1512.09370
Emma Perracchione
Giorgio Sabetta, Emma Perracchione, Ezio Venturino
Wild herbivores in forests: four case studies
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A three population system with a top predator population, i.e. the herbivores, and two prey populations, grass and trees, is considered to model the interaction of herbivores with natural resources. We apply the model for four natural mountain parks in Northern Italy, three located in the Eastern Alps, two of which i...
[ { "created": "Sat, 12 Dec 2015 19:02:03 GMT", "version": "v1" } ]
2019-07-09
[ [ "Sabetta", "Giorgio", "" ], [ "Perracchione", "Emma", "" ], [ "Venturino", "Ezio", "" ] ]
A three population system with a top predator population, i.e. the herbivores, and two prey populations, grass and trees, is considered to model the interaction of herbivores with natural resources. We apply the model for four natural mountain parks in Northern Italy, three located in the Eastern Alps, two of which in ...
1701.07243
Francois Meyer
Fran\c{c}ois G. Meyer, Alexander M. Benison, Zachariah Smith, and Daniel S. Barth
Decoding Epileptogenesis in a Reduced State Space
null
null
null
null
q-bio.NC cs.LG q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe here the recent results of a multidisciplinary effort to design a biomarker that can actively and continuously decode the progressive changes in neuronal organization leading to epilepsy, a process known as epileptogenesis. Using an animal model of acquired epilepsy, wechronically record hippocampal evoke...
[ { "created": "Wed, 25 Jan 2017 10:25:59 GMT", "version": "v1" } ]
2017-01-26
[ [ "Meyer", "François G.", "" ], [ "Benison", "Alexander M.", "" ], [ "Smith", "Zachariah", "" ], [ "Barth", "Daniel S.", "" ] ]
We describe here the recent results of a multidisciplinary effort to design a biomarker that can actively and continuously decode the progressive changes in neuronal organization leading to epilepsy, a process known as epileptogenesis. Using an animal model of acquired epilepsy, wechronically record hippocampal evoked ...
1912.13417
Changcheng Sheng
Changcheng Sheng, Qun Zhao, Wanjie Niu, Xiaoyan Qiu, Ming Zhang, Zheng Jiao
Effect of protein binding on exposure of unbound and total mycophenolic acid: a population pharmacokinetic analysis in Chinese adult kidney transplant recipients
39 pages, 3 tables, 5 figures, 1 supplementary table and 1 supplementary figure
Front. Pharmacol. (2020) 11:340
10.3389/fphar.2020.00340
null
q-bio.TO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
AIMS A population pharmacokinetic (PK) analysis was performed to: (1) characterise the PK of unbound and total mycophenolic acid (MPA) and its 7-O-mycophenolic acid glucuronide (MPAG) metabolite, and (2) identify the clinically significant covariates that cause variability in the dose-exposure relationship to facilit...
[ { "created": "Sat, 21 Dec 2019 03:11:22 GMT", "version": "v1" } ]
2020-03-24
[ [ "Sheng", "Changcheng", "" ], [ "Zhao", "Qun", "" ], [ "Niu", "Wanjie", "" ], [ "Qiu", "Xiaoyan", "" ], [ "Zhang", "Ming", "" ], [ "Jiao", "Zheng", "" ] ]
AIMS A population pharmacokinetic (PK) analysis was performed to: (1) characterise the PK of unbound and total mycophenolic acid (MPA) and its 7-O-mycophenolic acid glucuronide (MPAG) metabolite, and (2) identify the clinically significant covariates that cause variability in the dose-exposure relationship to facilitat...
1003.1896
Dietrich Stauffer
D. Stauffer and S. Cebrat
Love kills Penna ageing model
Two pages including figures
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
No abstract needed since short
[ { "created": "Tue, 9 Mar 2010 15:18:26 GMT", "version": "v1" } ]
2010-03-10
[ [ "Stauffer", "D.", "" ], [ "Cebrat", "S.", "" ] ]
No abstract needed since short
1310.0424
Susan Holmes
Paul J. McMurdie and Susan Holmes
Waste Not, Want Not: Why Rarefying Microbiome Data is Inadmissible
22 pages, 5 figures, 2 supplementary sections
null
10.1371/journal.pcbi.1003531
null
q-bio.QM q-bio.GN stat.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The interpretation of count data originating from the current generation of DNA sequencing platforms requires special attention. In particular, the per-sample library sizes often vary by orders of magnitude from the same sequencing run, and the counts are overdispersed relative to a simple Poisson model These challen...
[ { "created": "Tue, 1 Oct 2013 18:54:24 GMT", "version": "v1" }, { "created": "Thu, 12 Dec 2013 08:57:05 GMT", "version": "v2" } ]
2015-06-17
[ [ "McMurdie", "Paul J.", "" ], [ "Holmes", "Susan", "" ] ]
The interpretation of count data originating from the current generation of DNA sequencing platforms requires special attention. In particular, the per-sample library sizes often vary by orders of magnitude from the same sequencing run, and the counts are overdispersed relative to a simple Poisson model These challenge...
0811.0055
Christopher L. Henley
Christopher L. Henley (Cornell Univ.)
Possible mechanisms for initiating macroscopic left-right asymmetry in developing organisms
9 pp latex, 6 figures. Proc. Landau 100 Memorial Conf. (Chernogolovka, June 2008); to appear AIP Conf. series. (v2: added 4 ref's + revised Sec 2.2.)
null
10.1063/1.3149499
null
q-bio.TO q-bio.SC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
How might systematic left-right (L/R) asymmetry of the body plan originate in multicellular animals (and plants)? Somehow, the microscopic handedness of biological molecules must be brought up to macroscopic scales. Basic symmetry principles suggest that the usual "biological" mechanisms -- diffusion and gene regulat...
[ { "created": "Sat, 1 Nov 2008 02:52:58 GMT", "version": "v1" }, { "created": "Sat, 29 Nov 2008 19:40:29 GMT", "version": "v2" } ]
2015-05-13
[ [ "Henley", "Christopher L.", "", "Cornell Univ." ] ]
How might systematic left-right (L/R) asymmetry of the body plan originate in multicellular animals (and plants)? Somehow, the microscopic handedness of biological molecules must be brought up to macroscopic scales. Basic symmetry principles suggest that the usual "biological" mechanisms -- diffusion and gene regulatio...
1302.3022
Michel Destrade
Aisling Ni Annaidh, Karine Bruyere, Michel Destrade, Michael D. Gilchrist, Melanie Ottenio
Characterising the Anisotropic Mechanical Properties of Excised Human Skin
23 pages
Journal of the Mechanical Behavior of Biomedical Materials, 5 (2012) 139-148
10.1016/j.jmbbm.2011.08.016
null
q-bio.TO cond-mat.soft physics.bio-ph physics.med-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study we have investigated the influence of location and orientation on the deformation characteristics of 56 samples of excised human skin. Uniaxial tensile t...
[ { "created": "Wed, 13 Feb 2013 09:06:42 GMT", "version": "v1" } ]
2013-02-14
[ [ "Annaidh", "Aisling Ni", "" ], [ "Bruyere", "Karine", "" ], [ "Destrade", "Michel", "" ], [ "Gilchrist", "Michael D.", "" ], [ "Ottenio", "Melanie", "" ] ]
The mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study we have investigated the influence of location and orientation on the deformation characteristics of 56 samples of excised human skin. Uniaxial tensile tes...
1411.4704
Neil Page
N.W. Page, C. Hall and S.D. Page
Deep Brain Stimulation for Parkinson's Disease: a survey of experiences perceived by recipients and carers
45 pages, 32 figures and 23 tables
null
null
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Perceived outcomes from DBS for PD were sampled for 52 cases by surveying 46 DBS recipients and 45 carers. Post-DBS experience ranged from 10-129 months. There were significant variations in perceived outcomes over time. In some cases extreme variations were experienced as a consequence of hardware and other problems...
[ { "created": "Tue, 18 Nov 2014 00:45:44 GMT", "version": "v1" }, { "created": "Mon, 10 Aug 2015 00:00:51 GMT", "version": "v2" } ]
2015-08-11
[ [ "Page", "N. W.", "" ], [ "Hall", "C.", "" ], [ "Page", "S. D.", "" ] ]
Perceived outcomes from DBS for PD were sampled for 52 cases by surveying 46 DBS recipients and 45 carers. Post-DBS experience ranged from 10-129 months. There were significant variations in perceived outcomes over time. In some cases extreme variations were experienced as a consequence of hardware and other problems r...
1304.4201
Karin Vadovi\v{c}ov\'a
Karin Vadovi\v{c}ov\'a, Roberto Gasparotti
Reward and adversity processing circuits, their competition and interactions with dopamine and serotonin signaling
Reference [27] was updated to: Vadovi\v{c}ov\'a K: Affective and cognitive prefrontal cortex projections to the lateral habenula in humans. arXiv:1402.2196, re-published in Front Hum Neurosci 2014, 8:819. doi: 10.3389/fnhum.2014.00819 Few English errors were corrected and the Abbreviations chapter was deleted
null
10.14293/S2199-1006.1.SOR-LIFE.AEKZPZ.v1
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose that dACC, AI and caudolateral OFC(clOFC) project to lateral habenula (LHb) and D2 loop of ventral striatum (VS), forming a functional adversity processing circuit, directed towards inhibitory avoidance and self-control. This circuit learns what is bad or harmful to us and predicts risks, to stop us from g...
[ { "created": "Mon, 15 Apr 2013 19:05:50 GMT", "version": "v1" }, { "created": "Wed, 14 May 2014 14:54:51 GMT", "version": "v10" }, { "created": "Tue, 9 Sep 2014 10:10:38 GMT", "version": "v11" }, { "created": "Thu, 16 Oct 2014 08:18:23 GMT", "version": "v12" }, { ...
2014-11-18
[ [ "Vadovičová", "Karin", "" ], [ "Gasparotti", "Roberto", "" ] ]
We propose that dACC, AI and caudolateral OFC(clOFC) project to lateral habenula (LHb) and D2 loop of ventral striatum (VS), forming a functional adversity processing circuit, directed towards inhibitory avoidance and self-control. This circuit learns what is bad or harmful to us and predicts risks, to stop us from goi...
2311.07168
No First Name Abdul Samad
Muhammad Hamza, Hafeez Ur Rehman Ali Khera, Muhammad Umair Waqas, Ayesha Muazzam, Sania Tariq, Zain Kaleem, Waseem Akram, M Talha Mumtaz, Shehroz Ahmad, and Abdul Samad
Misuse of Antibiotics in Poultry Threatens Pakistan Communitys Health
null
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
A survey was conducted from February 2022 to May 2022 on the usage of antibiotics at a poultry farm in different areas of Multan, Punjab Pakistan. A well-organized questionnaire was used for the collection of data. Sixty poultry farms were surveyed randomly in the Multan district. All of these Farms were using antibi...
[ { "created": "Mon, 13 Nov 2023 09:02:57 GMT", "version": "v1" } ]
2023-11-14
[ [ "Hamza", "Muhammad", "" ], [ "Khera", "Hafeez Ur Rehman Ali", "" ], [ "Waqas", "Muhammad Umair", "" ], [ "Muazzam", "Ayesha", "" ], [ "Tariq", "Sania", "" ], [ "Kaleem", "Zain", "" ], [ "Akram", "Waseem", "...
A survey was conducted from February 2022 to May 2022 on the usage of antibiotics at a poultry farm in different areas of Multan, Punjab Pakistan. A well-organized questionnaire was used for the collection of data. Sixty poultry farms were surveyed randomly in the Multan district. All of these Farms were using antibiot...
1604.02733
Thibaud Taillefumier
Thibaud Taillefumier, Anna Posfai, Yigal Meir and Ned S. Wingreen
Bacterial cartels at steady supply
null
null
null
null
q-bio.PE q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Metagenomics has revealed hundreds of bacterial species in almost all microbiota. In a few well-studied cases, bacterial communities have been observed to coordinate their metabolic fluxes. In principle, bacteria can divide tasks to reap the benefits of specialization, as in human economies. However, the benefits and...
[ { "created": "Sun, 10 Apr 2016 21:01:53 GMT", "version": "v1" } ]
2016-04-12
[ [ "Taillefumier", "Thibaud", "" ], [ "Posfai", "Anna", "" ], [ "Meir", "Yigal", "" ], [ "Wingreen", "Ned S.", "" ] ]
Metagenomics has revealed hundreds of bacterial species in almost all microbiota. In a few well-studied cases, bacterial communities have been observed to coordinate their metabolic fluxes. In principle, bacteria can divide tasks to reap the benefits of specialization, as in human economies. However, the benefits and s...
1201.0384
Victor Novikov PhD
Victor P. Novikov
Three-stage Origin of Life as a Result of Directional Darwinian Evolution
10 pages, 3 figures
null
null
null
q-bio.OT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The original hypothesis about Three-stage origin of life (TOL) on the Earth is developed and discussed. The role of the temperature factor in life origin is considered. It is supposed, that three stages of abiogenesis (DNA world, RNA world and the Protein world) consistently followed each other during Darwinian evolu...
[ { "created": "Sun, 1 Jan 2012 20:55:58 GMT", "version": "v1" } ]
2012-01-04
[ [ "Novikov", "Victor P.", "" ] ]
The original hypothesis about Three-stage origin of life (TOL) on the Earth is developed and discussed. The role of the temperature factor in life origin is considered. It is supposed, that three stages of abiogenesis (DNA world, RNA world and the Protein world) consistently followed each other during Darwinian evoluti...
1501.04078
Maxim Koroteev
M.V. Koroteev
On a chain of fragmentation equations for duplication-mutation dynamics in DNA sequences
8 pages, 7 figures
null
null
null
q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent studies have revealed that for the majority of species the length distributions of duplicated sequences in natural DNA follow a power-law tail. We study duplication-mutation models for processes in natural DNA sequences and the length distributions of exact matches computed from both synthetic and natural sequ...
[ { "created": "Thu, 15 Jan 2015 11:02:08 GMT", "version": "v1" }, { "created": "Mon, 9 Feb 2015 18:28:24 GMT", "version": "v2" }, { "created": "Tue, 17 Feb 2015 22:04:17 GMT", "version": "v3" }, { "created": "Wed, 3 Jun 2015 13:15:01 GMT", "version": "v4" } ]
2015-06-04
[ [ "Koroteev", "M. V.", "" ] ]
Recent studies have revealed that for the majority of species the length distributions of duplicated sequences in natural DNA follow a power-law tail. We study duplication-mutation models for processes in natural DNA sequences and the length distributions of exact matches computed from both synthetic and natural sequen...
1401.7803
Ben Shirt-Ediss
Ben Shirt-Ediss, Kepa Ruiz-Mirazo, Fabio Mavelli and Ricard V. Sol\'e
Modelling Lipid Competition Dynamics in Heterogeneous Protocell Populations
15 pages, 6 figures, 1 table
null
10.1038/srep05675
null
q-bio.QM q-bio.SC
http://creativecommons.org/licenses/by/3.0/
In addressing the origins of Darwinian evolution, recent experimental work has been focussed on the discovery of simple physical effects which would provide a relevant selective advantage to protocells competing with each other for a limited supply of lipid. In particular, data coming from Szostak's lab suggest that ...
[ { "created": "Thu, 30 Jan 2014 11:31:11 GMT", "version": "v1" } ]
2014-07-15
[ [ "Shirt-Ediss", "Ben", "" ], [ "Ruiz-Mirazo", "Kepa", "" ], [ "Mavelli", "Fabio", "" ], [ "Solé", "Ricard V.", "" ] ]
In addressing the origins of Darwinian evolution, recent experimental work has been focussed on the discovery of simple physical effects which would provide a relevant selective advantage to protocells competing with each other for a limited supply of lipid. In particular, data coming from Szostak's lab suggest that th...
1201.6320
Michael B\"orsch
Stefan Ernst, Monika G. Dueser, Nawid Zarrabi, Michael Boersch
Monitoring transient elastic energy storage within the rotary motors of single FoF1-ATP synthase by DCO-ALEX FRET
14 pages, 7 figures
null
10.1117/12.907086
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The enzyme FoF1-ATP synthase provides the 'chemical energy currency' adenosine triphosphate (ATP) for living cells. Catalysis is driven by mechanochemical coupling of subunit rotation within the enzyme with conformational changes in the three ATP binding sites. Proton translocation through the membrane-bound Fo part ...
[ { "created": "Mon, 30 Jan 2012 18:54:14 GMT", "version": "v1" } ]
2015-06-04
[ [ "Ernst", "Stefan", "" ], [ "Dueser", "Monika G.", "" ], [ "Zarrabi", "Nawid", "" ], [ "Boersch", "Michael", "" ] ]
The enzyme FoF1-ATP synthase provides the 'chemical energy currency' adenosine triphosphate (ATP) for living cells. Catalysis is driven by mechanochemical coupling of subunit rotation within the enzyme with conformational changes in the three ATP binding sites. Proton translocation through the membrane-bound Fo part of...
1707.05636
Valerey Grytsay Dr
V.I. Grytsay
Self-Organization and Fractality in the Metabolic Process of Glycolysis
13 pages, 5 figures
Ukr. J. Phys., Vol. 59, N 12, p.1251-1262 (2015)
10.15407/ujpe60.12.1251
null
q-bio.OT nlin.AO nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within a mathematical model, the metabolic process of glycolysis is studied. The general scheme of glycolysis is considered as a natural result of the biochemical evolution. By using the theory of dissipative structures, the conditions of self-organization of the given process are sought. The autocatalytic processes ...
[ { "created": "Fri, 14 Jul 2017 10:08:18 GMT", "version": "v1" } ]
2017-07-19
[ [ "Grytsay", "V. I.", "" ] ]
Within a mathematical model, the metabolic process of glycolysis is studied. The general scheme of glycolysis is considered as a natural result of the biochemical evolution. By using the theory of dissipative structures, the conditions of self-organization of the given process are sought. The autocatalytic processes re...
q-bio/0410023
Sheng Li
Fangping Wei, Sheng Li and Hongru Ma
Network of tRNA Gene Sequences
Latex, 18 pages, 17 figures
null
null
null
q-bio.MN cond-mat.stat-mech q-bio.PE
null
We showed in this paper that similarity network can be used as an powerful tools to study the relationship of tRNA genes. We constructed a network of 3719 tRNA gene sequences using simplest alignment and studied its topology, degree distribution and clustering coefficient. It is found that the behavior of the network...
[ { "created": "Wed, 20 Oct 2004 06:36:29 GMT", "version": "v1" }, { "created": "Sat, 23 Oct 2004 12:22:21 GMT", "version": "v2" }, { "created": "Tue, 14 Dec 2004 12:52:57 GMT", "version": "v3" } ]
2009-09-29
[ [ "Wei", "Fangping", "" ], [ "Li", "Sheng", "" ], [ "Ma", "Hongru", "" ] ]
We showed in this paper that similarity network can be used as an powerful tools to study the relationship of tRNA genes. We constructed a network of 3719 tRNA gene sequences using simplest alignment and studied its topology, degree distribution and clustering coefficient. It is found that the behavior of the network s...
1911.01988
Laura Schaposnik
Yuyuan Luo and Laura P. Schaposnik
Minimal percolating sets for mutating infectious diseases
11 pages, 10 figures
Phys. Rev. Research 2, 023001 (2020)
10.1103/PhysRevResearch.2.023001
null
q-bio.PE cs.SI math.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper is dedicated to the study of the interaction between dynamical systems and percolation models, with views towards the study of viral infections whose virus mutate with time. Recall that r-bootstrap percolation describes a deterministic process where vertices of a graph are infected once r neighbors of it a...
[ { "created": "Tue, 5 Nov 2019 18:27:03 GMT", "version": "v1" } ]
2020-04-08
[ [ "Luo", "Yuyuan", "" ], [ "Schaposnik", "Laura P.", "" ] ]
This paper is dedicated to the study of the interaction between dynamical systems and percolation models, with views towards the study of viral infections whose virus mutate with time. Recall that r-bootstrap percolation describes a deterministic process where vertices of a graph are infected once r neighbors of it are...
2210.05269
Liam Maher
Katharina T. Huber and Liam J. Maher
Autopolyploidy, allopolyploidy, and phylogenetic networks with horizontal arcs
26 pages, 9 figures, 38 citations
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
Polyploidization is an evolutionary process by which a species acquires multiple copies of its complete set of chromosomes. The reticulate nature of the signal left behind by it means that phylogenetic networks offer themselves as a framework to reconstruct the evolutionary past of species affected by it. The main st...
[ { "created": "Tue, 11 Oct 2022 09:11:23 GMT", "version": "v1" }, { "created": "Sun, 19 Feb 2023 13:19:42 GMT", "version": "v2" } ]
2023-02-21
[ [ "Huber", "Katharina T.", "" ], [ "Maher", "Liam J.", "" ] ]
Polyploidization is an evolutionary process by which a species acquires multiple copies of its complete set of chromosomes. The reticulate nature of the signal left behind by it means that phylogenetic networks offer themselves as a framework to reconstruct the evolutionary past of species affected by it. The main stra...
2003.10073
Hideyoshi Yanagisawa
Hideyoshi Yanagisawa
Information-Theoretic Free Energy as Emotion Potential: Emotional Valence as a Function of Complexity and Novelty
null
Frontiers in Computational Neuroscience, 15, 107 (2021)
10.3389/fncom.2021.698252
null
q-bio.NC cs.AI cs.IT math.IT
http://creativecommons.org/licenses/by/4.0/
This study extends the mathematical model of emotion dimensions that we previously proposed (Yanagisawa, et al. 2019, Front Comput Neurosci) to consider perceived complexity as well as novelty, as a source of arousal potential. Berlyne's hedonic function of arousal potential (or the inverse U-shaped curve, the so-cal...
[ { "created": "Mon, 23 Mar 2020 04:10:23 GMT", "version": "v1" } ]
2021-11-23
[ [ "Yanagisawa", "Hideyoshi", "" ] ]
This study extends the mathematical model of emotion dimensions that we previously proposed (Yanagisawa, et al. 2019, Front Comput Neurosci) to consider perceived complexity as well as novelty, as a source of arousal potential. Berlyne's hedonic function of arousal potential (or the inverse U-shaped curve, the so-calle...
2303.08158
Sayantan Nag Chowdhury
Sayantan Nag Chowdhury, Jeet Banerjee, Matja\v{z} Perc, Dibakar Ghosh
Eco-evolutionary cyclic dominance among predators, prey, and parasites
14 pages, 6 figures, Supplementary material related to this article can be found online at https://doi.org/10.1016/j.jtbi.2023.111446
J. Theor. Biol. 564, 111446 (2023)
10.1016/j.jtbi.2023.111446
null
q-bio.PE nlin.AO
http://creativecommons.org/licenses/by/4.0/
Predator prey interactions are one of ecology's central research themes, but with many interdisciplinary implications across the social and natural sciences. Here we consider an often-overlooked species in these interactions, namely parasites. We first show that a simple predator prey parasite model, inspired by the ...
[ { "created": "Tue, 14 Mar 2023 18:14:53 GMT", "version": "v1" } ]
2024-07-16
[ [ "Chowdhury", "Sayantan Nag", "" ], [ "Banerjee", "Jeet", "" ], [ "Perc", "Matjaž", "" ], [ "Ghosh", "Dibakar", "" ] ]
Predator prey interactions are one of ecology's central research themes, but with many interdisciplinary implications across the social and natural sciences. Here we consider an often-overlooked species in these interactions, namely parasites. We first show that a simple predator prey parasite model, inspired by the cl...
2307.15083
Mircea Andrecut Dr
M. Andrecut
Reaction Diffusion TAP
11 pages, 4 figures, revised version accepted for publication in Int. J. Mod. Phys. C
null
null
null
q-bio.PE physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently introduced Theory of the Adjacent Possible (TAP) is a model of combinatorial innovation aiming to explain the "hockey-stick" upward trend of human technological evolution, where an explosion in the number of produced items with increasing complexity suddenly occurs. In addition, the TAP model was also us...
[ { "created": "Tue, 25 Jul 2023 20:52:07 GMT", "version": "v1" }, { "created": "Mon, 31 Jul 2023 03:40:57 GMT", "version": "v2" }, { "created": "Wed, 6 Sep 2023 16:08:11 GMT", "version": "v3" } ]
2023-09-07
[ [ "Andrecut", "M.", "" ] ]
The recently introduced Theory of the Adjacent Possible (TAP) is a model of combinatorial innovation aiming to explain the "hockey-stick" upward trend of human technological evolution, where an explosion in the number of produced items with increasing complexity suddenly occurs. In addition, the TAP model was also used...
2007.14762
Peter Gawthrop
Peter J Gawthrop
Energy-based Modelling of the Feedback Control of Biomolecular Systems with Cyclic Flow Modulation
null
IEEE Transactions on NanoBioscience, 2021
10.1109/TNB.2021.3058440
null
q-bio.MN
http://creativecommons.org/licenses/by-nc-sa/4.0/
Energy-based modelling brings engineering insight to the understanding of biomolecular systems. It is shown how well-established control engineering concepts, such as loop-gain, arise from energy feedback loops and are therefore amenable to control engineering insight. In particular, a novel method is introduced to a...
[ { "created": "Wed, 29 Jul 2020 12:00:21 GMT", "version": "v1" }, { "created": "Fri, 11 Dec 2020 11:57:15 GMT", "version": "v2" }, { "created": "Thu, 28 Jan 2021 11:04:30 GMT", "version": "v3" } ]
2021-03-30
[ [ "Gawthrop", "Peter J", "" ] ]
Energy-based modelling brings engineering insight to the understanding of biomolecular systems. It is shown how well-established control engineering concepts, such as loop-gain, arise from energy feedback loops and are therefore amenable to control engineering insight. In particular, a novel method is introduced to all...
0902.0313
Benzi Roberto
Roberto Benzi and David R. Nelson
Fisher equation with turbulence in one dimension
15 pages
null
10.1016/j.physd.2009.07.015
null
q-bio.PE cond-mat.stat-mech nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the dynamics of the Fisher equation for the spreading of micro-organisms in one dimension subject to both turbulent convection and diffusion. We show that for strong enough turbulence, bacteria, for example, track in a quasilocalized fashion (with remakably long persistance times) sinks in the turbulen...
[ { "created": "Mon, 2 Feb 2009 16:49:54 GMT", "version": "v1" } ]
2015-05-13
[ [ "Benzi", "Roberto", "" ], [ "Nelson", "David R.", "" ] ]
We investigate the dynamics of the Fisher equation for the spreading of micro-organisms in one dimension subject to both turbulent convection and diffusion. We show that for strong enough turbulence, bacteria, for example, track in a quasilocalized fashion (with remakably long persistance times) sinks in the turbulent ...
2311.16686
Rim Adenane
Florin Avram, Rim Adenane, Lasko Basnarkov, Matthew Johnston
Algorithmic approach for an unique definition of the next generation matrix
null
null
null
null
q-bio.PE math.DS
http://creativecommons.org/licenses/by/4.0/
The basic reproduction number R0 is a concept which originated in population dynamics, mathematical epidemiology, and ecology and is closely related to the mean number of children in branching processes.We offer below three new contributions to the literature: 1) We order a universal algorithmic definition of a (F, V...
[ { "created": "Tue, 28 Nov 2023 10:56:21 GMT", "version": "v1" }, { "created": "Wed, 29 Nov 2023 13:48:51 GMT", "version": "v2" } ]
2023-11-30
[ [ "Avram", "Florin", "" ], [ "Adenane", "Rim", "" ], [ "Basnarkov", "Lasko", "" ], [ "Johnston", "Matthew", "" ] ]
The basic reproduction number R0 is a concept which originated in population dynamics, mathematical epidemiology, and ecology and is closely related to the mean number of children in branching processes.We offer below three new contributions to the literature: 1) We order a universal algorithmic definition of a (F, V) ...
1911.02893
Tatiana Yakushkina S.
Sergei Drozhzhin, Tatiana Yakushkina, Alexander Bratus
Fitness Optimization and Evolution of Permanent Replicator Systems
31 page, 32 figures
null
null
null
q-bio.PE nlin.AO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we discuss the fitness landscape evolution of permanent replicator systems using a hypothesis that the specific time of evolutionary adaptation of the system parameters is much slower than the time of internal evolutionary dynamics. In other words, we suppose that the extreme principle of Darwinian evo...
[ { "created": "Thu, 7 Nov 2019 13:28:21 GMT", "version": "v1" } ]
2019-11-11
[ [ "Drozhzhin", "Sergei", "" ], [ "Yakushkina", "Tatiana", "" ], [ "Bratus", "Alexander", "" ] ]
In this paper, we discuss the fitness landscape evolution of permanent replicator systems using a hypothesis that the specific time of evolutionary adaptation of the system parameters is much slower than the time of internal evolutionary dynamics. In other words, we suppose that the extreme principle of Darwinian evolu...
1411.1658
Peter Thomas PhD
Peter J. Thomas and Benjamin Lindner
Asymptotic Phase for Stochastic Oscillators
5 pages, 3 figures
Phys. Rev. Lett. 113(25):254101, Dec. 2014
10.1103/PhysRevLett.113.254101
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Oscillations and noise are ubiquitous in physical and biological systems. When oscillations arise from a deterministic limit cycle, entrainment and synchronization may be analyzed in terms of the asymptotic phase function. In the presence of noise, the asymptotic phase is no longer well defined. We introduce a new de...
[ { "created": "Thu, 6 Nov 2014 16:41:46 GMT", "version": "v1" }, { "created": "Sun, 18 Jan 2015 21:17:02 GMT", "version": "v2" } ]
2015-01-20
[ [ "Thomas", "Peter J.", "" ], [ "Lindner", "Benjamin", "" ] ]
Oscillations and noise are ubiquitous in physical and biological systems. When oscillations arise from a deterministic limit cycle, entrainment and synchronization may be analyzed in terms of the asymptotic phase function. In the presence of noise, the asymptotic phase is no longer well defined. We introduce a new defi...
2005.13607
Hehuan Ma
Hehuan Ma, Yatao Bian, Yu Rong, Wenbing Huang, Tingyang Xu, Weiyang Xie, Geyan Ye, Junzhou Huang
Multi-View Graph Neural Networks for Molecular Property Prediction
null
null
null
null
q-bio.QM cs.LG stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The crux of molecular property prediction is to generate meaningful representations of the molecules. One promising route is to exploit the molecular graph structure through Graph Neural Networks (GNNs). It is well known that both atoms and bonds significantly affect the chemical properties of a molecule, so an expre...
[ { "created": "Sun, 17 May 2020 04:46:07 GMT", "version": "v1" }, { "created": "Fri, 29 May 2020 08:57:04 GMT", "version": "v2" }, { "created": "Fri, 12 Jun 2020 06:09:52 GMT", "version": "v3" } ]
2020-06-15
[ [ "Ma", "Hehuan", "" ], [ "Bian", "Yatao", "" ], [ "Rong", "Yu", "" ], [ "Huang", "Wenbing", "" ], [ "Xu", "Tingyang", "" ], [ "Xie", "Weiyang", "" ], [ "Ye", "Geyan", "" ], [ "Huang", "Junzhou", ...
The crux of molecular property prediction is to generate meaningful representations of the molecules. One promising route is to exploit the molecular graph structure through Graph Neural Networks (GNNs). It is well known that both atoms and bonds significantly affect the chemical properties of a molecule, so an express...
1201.5557
Shuhei Mano
Shuhei Mano
Duality between the two-locus Wright-Fisher Diffusion Model and the Ancestral Process with Recombination
25 pages, no figures
J. Appl. Probab. 50 (2013) 256-271
null
null
q-bio.PE math.PR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Known results on the moments of the distribution generated by the two-locus Wright-Fisher diffusion model and a duality between the diffusion process and the ancestral process with recombination are briefly summarized. A numerical methods for computing moments by a Markov chain Monte Carlo and a method to compute clo...
[ { "created": "Thu, 26 Jan 2012 15:38:01 GMT", "version": "v1" }, { "created": "Sat, 18 Feb 2012 03:17:14 GMT", "version": "v2" } ]
2013-04-08
[ [ "Mano", "Shuhei", "" ] ]
Known results on the moments of the distribution generated by the two-locus Wright-Fisher diffusion model and a duality between the diffusion process and the ancestral process with recombination are briefly summarized. A numerical methods for computing moments by a Markov chain Monte Carlo and a method to compute close...
1311.4206
Moritz Deger
Moritz Deger, Tilo Schwalger, Richard Naud, Wulfram Gerstner
Fluctuations and information filtering in coupled populations of spiking neurons with adaptation
null
Phys. Rev. E 90, 062704 (2014)
10.1103/PhysRevE.90.062704
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Finite-sized populations of spiking elements are fundamental to brain function, but also used in many areas of physics. Here we present a theory of the dynamics of finite-sized populations of spiking units, based on a quasi-renewal description of neurons with adaptation. We derive an integral equation with colored no...
[ { "created": "Sun, 17 Nov 2013 19:27:41 GMT", "version": "v1" }, { "created": "Tue, 3 Mar 2015 13:52:23 GMT", "version": "v2" } ]
2015-03-04
[ [ "Deger", "Moritz", "" ], [ "Schwalger", "Tilo", "" ], [ "Naud", "Richard", "" ], [ "Gerstner", "Wulfram", "" ] ]
Finite-sized populations of spiking elements are fundamental to brain function, but also used in many areas of physics. Here we present a theory of the dynamics of finite-sized populations of spiking units, based on a quasi-renewal description of neurons with adaptation. We derive an integral equation with colored nois...
1606.08629
Alexey Mazur K
Alexey K. Mazur
Weak Nanoscale Chaos And Anomalous Relaxation in DNA
8 pages, 4 figures
Phys. Rev. E 95, 062417 (2017)
10.1103/PhysRevE.95.062417
null
q-bio.BM cond-mat.soft physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Anomalous non-exponential relaxation in hydrated biomolecules is commonly attributed to the complexity of the free-energy landscapes, similarly to polymers and glasses. It was found recently that the hydrogen-bond breathing of terminal DNA base pairs exhibits a slow power-law relaxation attributable to weak Hamiltoni...
[ { "created": "Tue, 28 Jun 2016 09:49:55 GMT", "version": "v1" }, { "created": "Fri, 23 Jun 2017 09:07:23 GMT", "version": "v2" } ]
2017-07-05
[ [ "Mazur", "Alexey K.", "" ] ]
Anomalous non-exponential relaxation in hydrated biomolecules is commonly attributed to the complexity of the free-energy landscapes, similarly to polymers and glasses. It was found recently that the hydrogen-bond breathing of terminal DNA base pairs exhibits a slow power-law relaxation attributable to weak Hamiltonian...
1802.02546
Valeriy Grytsay Dr
V.I. Grytsay, I.V. Musatenko
A mathematical model of the metabolism of a cell. Self-organization and chaos
11 pages, 9 figures
null
null
null
q-bio.OT nlin.CD
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the classical tools of nonlinear dynamics, we study the process of self-organization and the appearance of the chaos in the metabolic process in a cell with the help of a mathematical model of the transformation of steroids by a cell Arthrobacter globiformis. We constructed the phase-parametric diagrams obtaine...
[ { "created": "Wed, 31 Jan 2018 09:29:50 GMT", "version": "v1" }, { "created": "Tue, 13 Mar 2018 18:40:21 GMT", "version": "v2" } ]
2018-03-15
[ [ "Grytsay", "V. I.", "" ], [ "Musatenko", "I. V.", "" ] ]
Using the classical tools of nonlinear dynamics, we study the process of self-organization and the appearance of the chaos in the metabolic process in a cell with the help of a mathematical model of the transformation of steroids by a cell Arthrobacter globiformis. We constructed the phase-parametric diagrams obtained ...
1610.06240
Semid\'an Robaina-Est\'evez
Semid\'an Robaina-Est\'evez, Zoran Nikoloski
On the effects of alternative optima in context-specific metabolic model predictions
null
PLoS Comput Biol 13(5): e1005568 (2017)
10.1371/journal.pcbi.1005568
null
q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent methodological developments have facilitated the integration of high-throughput data into genome-scale models to obtain context-specific metabolic reconstructions. A unique solution to this data integration problem often may not be guaranteed, leading to a multitude of context-specific predictions equally conc...
[ { "created": "Wed, 19 Oct 2016 22:08:44 GMT", "version": "v1" }, { "created": "Thu, 15 Jun 2017 14:39:30 GMT", "version": "v2" } ]
2017-06-16
[ [ "Robaina-Estévez", "Semidán", "" ], [ "Nikoloski", "Zoran", "" ] ]
Recent methodological developments have facilitated the integration of high-throughput data into genome-scale models to obtain context-specific metabolic reconstructions. A unique solution to this data integration problem often may not be guaranteed, leading to a multitude of context-specific predictions equally concor...
q-bio/0309022
V. Krishnan Ramanujan
R.V.Krishnan, A.Masuda, V.E.Centoze and B.Herman
Quantitative Imaging of Protein-Protein Interactions by Multiphoton Fluorescence Lifetime Imaging Microscopy using a Streak camera
Overview of FLIM techniques, StreakFLIM instrument, FRET applications
Journal of Biomedical Optics Vo.8, 362 (July 2003)
10.1117/1.1577574
null
q-bio.QM q-bio.CB
null
Fluorescence Lifetime Imaging Microscopy (FLIM) using multiphoton excitation techniques is now finding an important place in quantitative imaging of protein-protein interactions and intracellular physiology. We review here the recent developments in multiphoton FLIM methods and also present a description of a novel m...
[ { "created": "Tue, 30 Sep 2003 14:19:35 GMT", "version": "v1" } ]
2009-11-10
[ [ "Krishnan", "R. V.", "" ], [ "Masuda", "A.", "" ], [ "Centoze", "V. E.", "" ], [ "Herman", "B.", "" ] ]
Fluorescence Lifetime Imaging Microscopy (FLIM) using multiphoton excitation techniques is now finding an important place in quantitative imaging of protein-protein interactions and intracellular physiology. We review here the recent developments in multiphoton FLIM methods and also present a description of a novel mul...
1307.4954
Robert Kofler
Robert Kofler and Christian Schl\"otterer
Guidelines for the design of evolve and resequencing studies
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Standing genetic variation provides a rich reservoir of potentially useful mutations facilitating the adaptation to novel environments. Experimental evolution studies have demonstrated that rapid and strong phenotypic responses to selection can also be obtained in the laboratory. When combined with the Next Generatio...
[ { "created": "Thu, 18 Jul 2013 14:16:16 GMT", "version": "v1" } ]
2013-07-19
[ [ "Kofler", "Robert", "" ], [ "Schlötterer", "Christian", "" ] ]
Standing genetic variation provides a rich reservoir of potentially useful mutations facilitating the adaptation to novel environments. Experimental evolution studies have demonstrated that rapid and strong phenotypic responses to selection can also be obtained in the laboratory. When combined with the Next Generation ...
2309.13319
Catherine Beauchemin
Jamie Porthiyas, Daniel Nussey, Catherine A. A. Beauchemin, Donald C. Warren, Christian Quirouette, Kathleen P. Wilkie
A closer look at parameter identifiability, model selection and handling of censored data with Bayesian Inference in mathematical models of tumour growth
15 pages, 7 figures
NPJ Syst. Biol. Appl., 10:89 (2024)
10.1038/s41540-024-00409-6
RIKEN-iTHEMS-Report-23
q-bio.QM
http://creativecommons.org/licenses/by-sa/4.0/
Mathematical models (MMs) are a powerful tool to help us understand and predict the dynamics of tumour growth under various conditions. In this work, we use 5 MMs with an increasing number of parameters to explore how certain (often overlooked) decisions in estimating parameters from data of experimental tumour growt...
[ { "created": "Sat, 23 Sep 2023 09:27:38 GMT", "version": "v1" } ]
2024-08-16
[ [ "Porthiyas", "Jamie", "" ], [ "Nussey", "Daniel", "" ], [ "Beauchemin", "Catherine A. A.", "" ], [ "Warren", "Donald C.", "" ], [ "Quirouette", "Christian", "" ], [ "Wilkie", "Kathleen P.", "" ] ]
Mathematical models (MMs) are a powerful tool to help us understand and predict the dynamics of tumour growth under various conditions. In this work, we use 5 MMs with an increasing number of parameters to explore how certain (often overlooked) decisions in estimating parameters from data of experimental tumour growth ...
1610.07161
Mihai Alexandru Petrovici
Mihai A. Petrovici, Johannes Bill, Ilja Bytschok, Johannes Schemmel, Karlheinz Meier
Stochastic inference with spiking neurons in the high-conductance state
null
Phys. Rev. E 94, 042312 (2016)
10.1103/PhysRevE.94.042312
null
q-bio.NC cond-mat.dis-nn cs.NE physics.bio-ph stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The highly variable dynamics of neocortical circuits observed in vivo have been hypothesized to represent a signature of ongoing stochastic inference but stand in apparent contrast to the deterministic response of neurons measured in vitro. Based on a propagation of the membrane autocorrelation across spike bursts, w...
[ { "created": "Sun, 23 Oct 2016 12:27:05 GMT", "version": "v1" } ]
2017-03-14
[ [ "Petrovici", "Mihai A.", "" ], [ "Bill", "Johannes", "" ], [ "Bytschok", "Ilja", "" ], [ "Schemmel", "Johannes", "" ], [ "Meier", "Karlheinz", "" ] ]
The highly variable dynamics of neocortical circuits observed in vivo have been hypothesized to represent a signature of ongoing stochastic inference but stand in apparent contrast to the deterministic response of neurons measured in vitro. Based on a propagation of the membrane autocorrelation across spike bursts, we ...
2312.03954
Rylan Schaeffer
Rylan Schaeffer, Mikail Khona, Sanmi Koyejo, and Ila Rani Fiete
Disentangling Fact from Grid Cell Fiction in Trained Deep Path Integrators
arXiv admin note: text overlap with arXiv:2311.16295
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Work on deep learning-based models of grid cells suggests that grid cells generically and robustly arise from optimizing networks to path integrate, i.e., track one's spatial position by integrating self-velocity signals. In previous work, we challenged this path integration hypothesis by showing that deep neural net...
[ { "created": "Wed, 6 Dec 2023 23:44:43 GMT", "version": "v1" }, { "created": "Fri, 8 Dec 2023 04:14:42 GMT", "version": "v2" }, { "created": "Sat, 16 Dec 2023 15:01:17 GMT", "version": "v3" } ]
2023-12-19
[ [ "Schaeffer", "Rylan", "" ], [ "Khona", "Mikail", "" ], [ "Koyejo", "Sanmi", "" ], [ "Fiete", "Ila Rani", "" ] ]
Work on deep learning-based models of grid cells suggests that grid cells generically and robustly arise from optimizing networks to path integrate, i.e., track one's spatial position by integrating self-velocity signals. In previous work, we challenged this path integration hypothesis by showing that deep neural netwo...
1007.5235
Pietro Faccioli
S. a Beccara, P. Faccioli, G. Garberoglio, M. Sega, F. Pederiva and H. Orland
Dominant folding pathways of a peptide chain, from ab-initio quantum-mechanical simulations
9 pages, 5 figures
null
null
null
q-bio.BM cond-mat.soft cond-mat.str-el
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the Dominant Reaction Pathways method, we perform an ab-initio quantum-mechanical simulation of a conformational transition of a peptide chain. The method we propose makes it possible to investigate the out-of-equilibrium dynamics of these systems, without resorting to an empirical representation of the molecul...
[ { "created": "Thu, 29 Jul 2010 14:45:58 GMT", "version": "v1" } ]
2010-07-30
[ [ "Beccara", "S. a", "" ], [ "Faccioli", "P.", "" ], [ "Garberoglio", "G.", "" ], [ "Sega", "M.", "" ], [ "Pederiva", "F.", "" ], [ "Orland", "H.", "" ] ]
Using the Dominant Reaction Pathways method, we perform an ab-initio quantum-mechanical simulation of a conformational transition of a peptide chain. The method we propose makes it possible to investigate the out-of-equilibrium dynamics of these systems, without resorting to an empirical representation of the molecular...
0707.4487
Shimshon Jacobi
Jean-Pierre Eckmann, Shimshon Jacobi, Shimon Marom, Elisha Moses, Cyrille Zbinden
Leadership in 2D living neural networks
null
null
null
New J. Phys. 10 (2008) 015011
q-bio.NC
null
Eytan and Marom recently showed that the spontaneous burst activity of rat neuron cultures includes `first to fire' cells that consistently fire earlier than others. Here we analyze the behavior of these neurons in long term recordings of spontaneous activity of rat hippocampal and rat cortical neuron cultures from t...
[ { "created": "Mon, 30 Jul 2007 21:14:47 GMT", "version": "v1" } ]
2010-04-19
[ [ "Eckmann", "Jean-Pierre", "" ], [ "Jacobi", "Shimshon", "" ], [ "Marom", "Shimon", "" ], [ "Moses", "Elisha", "" ], [ "Zbinden", "Cyrille", "" ] ]
Eytan and Marom recently showed that the spontaneous burst activity of rat neuron cultures includes `first to fire' cells that consistently fire earlier than others. Here we analyze the behavior of these neurons in long term recordings of spontaneous activity of rat hippocampal and rat cortical neuron cultures from thr...
0908.1615
David Saakian
David B. Saakian, Olga Rozanova, Andrei Akmetzhanov
Exactly solvable dynamics of the Eigen and the Crow-Kimura models
7 pages
Physical Review E 78, 041908 (2008)
10.1103/PhysRevE.78.041908
null
q-bio.PE q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a new way to study molecular evolution within well-established Hamilton-Jacobi formalism, showing that for a broad class of fitness landscapes it is possible to derive dynamics analytically within the $1/N$-accuracy, where $N$ is genome length. For smooth and monotonic fitness function this approach give...
[ { "created": "Wed, 12 Aug 2009 05:11:25 GMT", "version": "v1" } ]
2015-05-13
[ [ "Saakian", "David B.", "" ], [ "Rozanova", "Olga", "" ], [ "Akmetzhanov", "Andrei", "" ] ]
We introduce a new way to study molecular evolution within well-established Hamilton-Jacobi formalism, showing that for a broad class of fitness landscapes it is possible to derive dynamics analytically within the $1/N$-accuracy, where $N$ is genome length. For smooth and monotonic fitness function this approach gives ...
2303.06503
Iheanyi Okonko Okonko
Iheanyi Omezuruike Okonko, Chisom Chimbundum Adim, Blessing Jachinma Okonko and Edith Ijeego Mba
Semi-Quantitative Analysis and Serological Evidence of Hepatitis A Virus IgG Antibody among children in Rumuewhor, Emuoha, Rivers State, Nigeria
7 pages
null
null
null
q-bio.OT
http://creativecommons.org/licenses/by-nc-nd/4.0/
Hepatitis A virus (HAV) infection has been greatly reduced in most developed countries through the use of vaccine and improved hygienic conditions. However, the magnitude of the problem is underestimated and there are no well-established Hepatitis A virus prevention and control strategies in Nigeria. The aim of this ...
[ { "created": "Sat, 11 Mar 2023 22:06:44 GMT", "version": "v1" } ]
2023-03-14
[ [ "Okonko", "Iheanyi Omezuruike", "" ], [ "Adim", "Chisom Chimbundum", "" ], [ "Okonko", "Blessing Jachinma", "" ], [ "Mba", "Edith Ijeego", "" ] ]
Hepatitis A virus (HAV) infection has been greatly reduced in most developed countries through the use of vaccine and improved hygienic conditions. However, the magnitude of the problem is underestimated and there are no well-established Hepatitis A virus prevention and control strategies in Nigeria. The aim of this st...
2406.10739
Ananda Shikhara Bhat
Ananda Shikhara Bhat
A stochastic field theory for the evolution of quantitative traits in finite populations
Main text is 36 pages long (with references) and contains two figures; Supplementary material is 35 pages long (with references) and contains one figure
null
null
null
q-bio.PE cond-mat.stat-mech math.PR physics.bio-ph
http://creativecommons.org/licenses/by/4.0/
Infinitely many distinct trait values may arise in populations bearing quantitative traits, and modelling their population dynamics is thus a formidable task. While classical models assume fixed or infinite population size, models in which the total population size fluctuates due to demographic noise in births and de...
[ { "created": "Sat, 15 Jun 2024 20:58:02 GMT", "version": "v1" } ]
2024-06-18
[ [ "Bhat", "Ananda Shikhara", "" ] ]
Infinitely many distinct trait values may arise in populations bearing quantitative traits, and modelling their population dynamics is thus a formidable task. While classical models assume fixed or infinite population size, models in which the total population size fluctuates due to demographic noise in births and deat...
1911.00383
Homayoun Valafar
Rishi Mukhopadhyay, Paul Shealy, Homayoun Valafar
Protein Fold Family Recognition From Unassigned Residual Dipolar Coupling Data
BioComp 2008, 7 pages
null
null
null
q-bio.BM cs.CV
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Despite many advances in computational modeling of protein structures, these methods have not been widely utilized by experimental structural biologists. Two major obstacles are preventing the transition from a purely-experimental to a purely-computational mode of protein structure determination. The first problem is...
[ { "created": "Fri, 1 Nov 2019 14:01:25 GMT", "version": "v1" } ]
2019-11-04
[ [ "Mukhopadhyay", "Rishi", "" ], [ "Shealy", "Paul", "" ], [ "Valafar", "Homayoun", "" ] ]
Despite many advances in computational modeling of protein structures, these methods have not been widely utilized by experimental structural biologists. Two major obstacles are preventing the transition from a purely-experimental to a purely-computational mode of protein structure determination. The first problem is t...
2004.11961
Alexey Ovchinnikov
Alexey Ovchinnikov, Isabel Cristina P\'erez Verona, Gleb Pogudin, Mirco Tribastone
CLUE: Exact maximal reduction of kinetic models by constrained lumping of differential equations
null
null
null
null
q-bio.MN cs.SC cs.SY eess.SY
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivation: Detailed mechanistic models of biological processes can pose significant challenges for analysis and parameter estimations due to the large number of equations used to track the dynamics of all distinct configurations in which each involved biochemical species can be found. Model reduction can help tame s...
[ { "created": "Fri, 24 Apr 2020 19:42:51 GMT", "version": "v1" }, { "created": "Tue, 15 Dec 2020 02:09:43 GMT", "version": "v2" } ]
2020-12-16
[ [ "Ovchinnikov", "Alexey", "" ], [ "Verona", "Isabel Cristina Pérez", "" ], [ "Pogudin", "Gleb", "" ], [ "Tribastone", "Mirco", "" ] ]
Motivation: Detailed mechanistic models of biological processes can pose significant challenges for analysis and parameter estimations due to the large number of equations used to track the dynamics of all distinct configurations in which each involved biochemical species can be found. Model reduction can help tame suc...
q-bio/0312026
Brandilyn Stigler
Reinhard Laubenbacher, Brandilyn Stigler
A Computational Algebra Approach to the Reverse Engineering of Gene Regulatory Networks
28 pages, 5 EPS figures, uses elsart.cls
Journal of Theoretical Biology 229 (2004) 523-537
10.1016/j.jtbi.2004.04.037
null
q-bio.QM q-bio.MN
null
This paper proposes a new method to reverse engineer gene regulatory networks from experimental data. The modeling framework used is time-discrete deterministic dynamical systems, with a finite set of states for each of the variables. The simplest examples of such models are Boolean networks, in which variables have ...
[ { "created": "Wed, 17 Dec 2003 22:12:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Laubenbacher", "Reinhard", "" ], [ "Stigler", "Brandilyn", "" ] ]
This paper proposes a new method to reverse engineer gene regulatory networks from experimental data. The modeling framework used is time-discrete deterministic dynamical systems, with a finite set of states for each of the variables. The simplest examples of such models are Boolean networks, in which variables have on...
2011.07982
Ricardo Martinez-Garcia
Ricardo Martinez-Garcia, Crist\'obal L\'opez, Federico Vazquez
Species exclusion and coexistence in a noisy voter model with a competition-colonization tradeoff
13 pages, 9 figures, 3 appendices
Phys. Rev. E 103, 032406 (2021)
10.1103/PhysRevE.103.032406
null
q-bio.PE cond-mat.stat-mech
http://creativecommons.org/licenses/by/4.0/
We introduce an asymmetric noisy voter model to study the joint effect of immigration and a competition-dispersal tradeoff in the dynamics of two species competing for space in regular lattices. Individuals of one species can invade a nearest-neighbor site in the lattice, while individuals of the other species are ab...
[ { "created": "Mon, 16 Nov 2020 14:28:05 GMT", "version": "v1" }, { "created": "Fri, 5 Feb 2021 13:12:05 GMT", "version": "v2" }, { "created": "Tue, 16 Feb 2021 16:13:29 GMT", "version": "v3" } ]
2021-03-17
[ [ "Martinez-Garcia", "Ricardo", "" ], [ "López", "Cristóbal", "" ], [ "Vazquez", "Federico", "" ] ]
We introduce an asymmetric noisy voter model to study the joint effect of immigration and a competition-dispersal tradeoff in the dynamics of two species competing for space in regular lattices. Individuals of one species can invade a nearest-neighbor site in the lattice, while individuals of the other species are able...
1905.01158
Gabriel Obed Fosu
Gabriel O. Fosu and Emmanuel K. Mintah
A Two-Dose Vaccine Epidemic Model with Power Incidence Rate
null
null
null
null
q-bio.PE physics.soc-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dynamics of a SIVR model with power relationship incidence rates $(\beta I^p S^q)$ is investigated. It is assumed an individual can be susceptible after receiving the first dose of the vaccine, hence a second dose is required to attain permanent immunity. The steady states conditions of the disease-free equilibri...
[ { "created": "Thu, 2 May 2019 16:41:22 GMT", "version": "v1" } ]
2019-05-06
[ [ "Fosu", "Gabriel O.", "" ], [ "Mintah", "Emmanuel K.", "" ] ]
The dynamics of a SIVR model with power relationship incidence rates $(\beta I^p S^q)$ is investigated. It is assumed an individual can be susceptible after receiving the first dose of the vaccine, hence a second dose is required to attain permanent immunity. The steady states conditions of the disease-free equilibrium...
q-bio/0412033
Robersy Sanchez
Robersy Sanchez, Eberto Morgado and Ricardo Grau
Gene Algebra from a Genetic Code Algebraic Structure
27 pages, without figures
Journal of Mathematical Biology. 2005 Oct;51(4):431-57.
10.1007/s00285-005-0332-8
null
q-bio.QM q-bio.GN
null
The biological distinction between the base positions in the codon, the chemical types of bases (purine and pyrimidine) and their hydrogen bond number have been the most relevant codon properties used in the genetic code analysis. Now, these properties have allowed us to build a Genetic Code ring isomorphic to the ri...
[ { "created": "Thu, 16 Dec 2004 16:49:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sanchez", "Robersy", "" ], [ "Morgado", "Eberto", "" ], [ "Grau", "Ricardo", "" ] ]
The biological distinction between the base positions in the codon, the chemical types of bases (purine and pyrimidine) and their hydrogen bond number have been the most relevant codon properties used in the genetic code analysis. Now, these properties have allowed us to build a Genetic Code ring isomorphic to the ring...
1304.3720
Brian Williams Dr
Brian G. Williams and Eleanor Gouws
R0 and the elimination of HIV in Africa: Will 90-90-90 be sufficient?
We have updated the previous version for two reasons. First, we have given a better approximation for the estimation of R0 from epidemic doubling times. Second, we have added comments on the new UNAIDS '90-90-90' strategy which puts the results into a broader context
null
null
null
q-bio.QM q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Joint United Nations Programme on HIV and AIDS (UNAIDS) has set a new 90-90-90 global target for the coverage of anti-retroviral therapy (ART) to be reached by 2020. This would mean that 90% of all people infected with HIV know their status, 90% of them are on ART and 90% of them will have full viral load suppres...
[ { "created": "Fri, 12 Apr 2013 15:48:41 GMT", "version": "v1" }, { "created": "Mon, 14 Jul 2014 15:00:51 GMT", "version": "v2" } ]
2014-07-15
[ [ "Williams", "Brian G.", "" ], [ "Gouws", "Eleanor", "" ] ]
The Joint United Nations Programme on HIV and AIDS (UNAIDS) has set a new 90-90-90 global target for the coverage of anti-retroviral therapy (ART) to be reached by 2020. This would mean that 90% of all people infected with HIV know their status, 90% of them are on ART and 90% of them will have full viral load suppressi...
q-bio/0604002
Martin Huber
Martin Tobias Huber and Hans Albert Braun
Conductance versus current noise in a neuronal model for noisy subthreshold oscillations and related spike generation
accepted for publication in Biosystems; 10 pages, 2 figures
null
null
null
q-bio.NC q-bio.CB
null
Biological systems are notoriously noisy. Noise, therefore, also plays an important role in many models of neural impulse generation. Noise is not only introduced for more realistic simulations but also to account for cooperative effects between noisy and nonlinear dynamics. Often, this is achieved by a simple noise ...
[ { "created": "Mon, 3 Apr 2006 13:22:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Huber", "Martin Tobias", "" ], [ "Braun", "Hans Albert", "" ] ]
Biological systems are notoriously noisy. Noise, therefore, also plays an important role in many models of neural impulse generation. Noise is not only introduced for more realistic simulations but also to account for cooperative effects between noisy and nonlinear dynamics. Often, this is achieved by a simple noise te...
2405.06663
Eunji Ko
Eunji Ko, Seul Lee, Minseon Kim, Dongki Kim
Protein Representation Learning by Capturing Protein Sequence-Structure-Function Relationship
ICLR 2024 MLGenX Workshop (Spotlight)
null
null
null
q-bio.BM cs.AI cs.LG
http://creativecommons.org/licenses/by-nc-nd/4.0/
The goal of protein representation learning is to extract knowledge from protein databases that can be applied to various protein-related downstream tasks. Although protein sequence, structure, and function are the three key modalities for a comprehensive understanding of proteins, existing methods for protein repres...
[ { "created": "Mon, 29 Apr 2024 05:42:29 GMT", "version": "v1" } ]
2024-05-14
[ [ "Ko", "Eunji", "" ], [ "Lee", "Seul", "" ], [ "Kim", "Minseon", "" ], [ "Kim", "Dongki", "" ] ]
The goal of protein representation learning is to extract knowledge from protein databases that can be applied to various protein-related downstream tasks. Although protein sequence, structure, and function are the three key modalities for a comprehensive understanding of proteins, existing methods for protein represen...
1307.5565
Giovanni Bussi
Trang N. Do, Paolo Carloni, Gabriele Varani, and Giovanni Bussi
RNA/peptide binding driven by electrostatics -- Insight from bi-directional pulling simulations
Reprinted (adapted) with permission from J. Chem. Theory Comput., 2013, 9 (3) 1720 (2013). Copyright (2013) American Chemical Society
J. Chem. Theory Comput. 9, 1720 (2013)
10.1021/ct3009914
null
q-bio.BM cond-mat.soft physics.bio-ph physics.chem-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
RNA/protein interactions play crucial roles in controlling gene expression. They are becoming important targets for pharmaceutical applications. Due to RNA flexibility and to the strength of electrostatic interactions, standard docking methods are insufficient. We here present a computational method which allows stud...
[ { "created": "Sun, 21 Jul 2013 20:12:24 GMT", "version": "v1" } ]
2013-07-23
[ [ "Do", "Trang N.", "" ], [ "Carloni", "Paolo", "" ], [ "Varani", "Gabriele", "" ], [ "Bussi", "Giovanni", "" ] ]
RNA/protein interactions play crucial roles in controlling gene expression. They are becoming important targets for pharmaceutical applications. Due to RNA flexibility and to the strength of electrostatic interactions, standard docking methods are insufficient. We here present a computational method which allows studyi...
2102.09124
Dietmar Plenz Dr
Dietmar Plenz, Tiago L. Ribeiro, Stephanie R. Miller, Patrick A. Kells, Ali Vakili, Elliott L. Capek (Section on Critical Brain Dynamics, National Institute of Mental Health, National Institutes of Health, USA)
Self-Organized Criticality in the Brain
40 pages, 14 figures
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-sa/4.0/
Self-organized criticality (SOC) refers to the ability of complex systems to evolve towards a 2nd-order phase transition at which interactions between system components lead to scale-invariant events beneficial for system performance. For the last two decades, considerable experimental evidence accumulated that the m...
[ { "created": "Thu, 18 Feb 2021 02:53:23 GMT", "version": "v1" }, { "created": "Sat, 15 May 2021 13:37:14 GMT", "version": "v2" } ]
2021-05-18
[ [ "Plenz", "Dietmar", "", "Section on Critical Brain Dynamics,\n National Institute of Mental Health, National Institutes of Health, USA" ], [ "Ribeiro", "Tiago L.", "", "Section on Critical Brain Dynamics,\n National Institute of Mental Health, National Institutes of Health, U...
Self-organized criticality (SOC) refers to the ability of complex systems to evolve towards a 2nd-order phase transition at which interactions between system components lead to scale-invariant events beneficial for system performance. For the last two decades, considerable experimental evidence accumulated that the mam...
2407.16013
Murat Okatan
Murat Okatan
A statistical significance test for spatio-temporal receptive field estimates obtained using spike-triggered averaging of binary pseudo-random sequences
This is a replacement of the article "Okatan, M. A statistical significance test for spatio-temporal receptive field estimates obtained using spike-triggered averaging of binary pseudo-random sequences. SIViP 17, 3759-3766 (2023). https://doi.org/10.1007/s11760-023-02603-1". The current manuscript corrects an e...
SIViP 17, 3759-3766 (2023)
10.1007/s11760-023-02603-1
null
q-bio.QM q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Spatio-temporal receptive fields (STRF) of visual neurons are often estimated using spike-triggered averaging of binary pseudo-random stimulus sequences. The spike train of a visual neuron is recorded simultaneously with the stimulus presentation. The neuron's STRF is estimated by averaging the stimulus frames that c...
[ { "created": "Mon, 22 Jul 2024 19:42:42 GMT", "version": "v1" } ]
2024-07-24
[ [ "Okatan", "Murat", "" ] ]
Spatio-temporal receptive fields (STRF) of visual neurons are often estimated using spike-triggered averaging of binary pseudo-random stimulus sequences. The spike train of a visual neuron is recorded simultaneously with the stimulus presentation. The neuron's STRF is estimated by averaging the stimulus frames that coi...
1511.03150
Mazza
Micha\"el Dougoud, Christian Mazza and Laura Vinckenbosch
Ultrasensitivity and sharp threshold theorems for multisite systems
null
null
null
null
q-bio.SC math.PR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the ultrasensitivity of multisite binding processes where ligand molecules can bind to several binding sites, considering more particularly recent models involving complex chemical reactions in phosphorylation systems such as allosteric phosphorylation processes, or substrate-catalyst chain reactions and nuc...
[ { "created": "Tue, 10 Nov 2015 15:44:25 GMT", "version": "v1" }, { "created": "Wed, 11 Nov 2015 14:44:29 GMT", "version": "v2" }, { "created": "Fri, 29 Apr 2016 13:29:58 GMT", "version": "v3" } ]
2016-05-02
[ [ "Dougoud", "Michaël", "" ], [ "Mazza", "Christian", "" ], [ "Vinckenbosch", "Laura", "" ] ]
We study the ultrasensitivity of multisite binding processes where ligand molecules can bind to several binding sites, considering more particularly recent models involving complex chemical reactions in phosphorylation systems such as allosteric phosphorylation processes, or substrate-catalyst chain reactions and nucle...
1503.00669
Cengiz Pehlevan
Cengiz Pehlevan, Tao Hu, Dmitri B. Chklovskii
A Hebbian/Anti-Hebbian Neural Network for Linear Subspace Learning: A Derivation from Multidimensional Scaling of Streaming Data
Accepted for publication in Neural Computation
null
10.1162/NECO_a_00745
null
q-bio.NC cs.NE stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neural network models of early sensory processing typically reduce the dimensionality of streaming input data. Such networks learn the principal subspace, in the sense of principal component analysis (PCA), by adjusting synaptic weights according to activity-dependent learning rules. When derived from a principled co...
[ { "created": "Mon, 2 Mar 2015 19:39:33 GMT", "version": "v1" } ]
2015-05-18
[ [ "Pehlevan", "Cengiz", "" ], [ "Hu", "Tao", "" ], [ "Chklovskii", "Dmitri B.", "" ] ]
Neural network models of early sensory processing typically reduce the dimensionality of streaming input data. Such networks learn the principal subspace, in the sense of principal component analysis (PCA), by adjusting synaptic weights according to activity-dependent learning rules. When derived from a principled cost...
2104.01554
Hoang Ngan Nguyen
Ngan Nguyen, Ciril Bohak, Dominik Engel, Peter Mindek, Ond\v{r}ej Strnad, Peter Wonka, Sai Li, Timo Ropinski, Ivan Viola
Finding Nano-\"Otzi: Semi-Supervised Volume Visualization for Cryo-Electron Tomography
null
IEEE Transactions on Visualization and Computer Graphics, 2022
10.1109/TVCG.2022.3186146
null
q-bio.QM
http://creativecommons.org/licenses/by-sa/4.0/
Cryo-Electron Tomography (cryo-ET) is a new 3D imaging technique with unprecedented potential for resolving submicron structural detail. Existing volume visualization methods, however, cannot cope with its very low signal-to-noise ratio. In order to design more powerful transfer functions, we propose to leverage soft...
[ { "created": "Sun, 4 Apr 2021 07:45:48 GMT", "version": "v1" } ]
2022-06-28
[ [ "Nguyen", "Ngan", "" ], [ "Bohak", "Ciril", "" ], [ "Engel", "Dominik", "" ], [ "Mindek", "Peter", "" ], [ "Strnad", "Ondřej", "" ], [ "Wonka", "Peter", "" ], [ "Li", "Sai", "" ], [ "Ropinski", ...
Cryo-Electron Tomography (cryo-ET) is a new 3D imaging technique with unprecedented potential for resolving submicron structural detail. Existing volume visualization methods, however, cannot cope with its very low signal-to-noise ratio. In order to design more powerful transfer functions, we propose to leverage soft s...
1905.11800
Kelin Xia
Kelin Xia, D Vijay Anand, Shikhar Saxena, Yuguang Mu
Persistent homology analysis of osmolyte molecular aggregation and their hydrogen-bonding networks
19 pages; 9 figures; 1 table
null
10.1039/C9CP03009C
null
q-bio.QM q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two types of osmolytes, i.e., trimethylamin N-oxide (TMAO) and urea, demonstrate dramatically different properties in a protein folding process. Even with the great progresses in revealing the potential underlying mechanism of these two osmolyte systems, many problems still remain unsolved. In this paper, we propose ...
[ { "created": "Tue, 28 May 2019 13:26:43 GMT", "version": "v1" } ]
2019-10-23
[ [ "Xia", "Kelin", "" ], [ "Anand", "D Vijay", "" ], [ "Saxena", "Shikhar", "" ], [ "Mu", "Yuguang", "" ] ]
Two types of osmolytes, i.e., trimethylamin N-oxide (TMAO) and urea, demonstrate dramatically different properties in a protein folding process. Even with the great progresses in revealing the potential underlying mechanism of these two osmolyte systems, many problems still remain unsolved. In this paper, we propose to...
2408.07977
Kimberly Nestor
Kimberly Nestor, Javier Rasero, Richard Betzel, Peter J. Gianaros, Timothy Verstynen
Cortical network reconfiguration aligns with shifts of basal ganglia and cerebellar influence
null
null
null
null
q-bio.NC cs.SI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Mammalian functional architecture flexibly adapts, transitioning from integration where information is distributed across the cortex, to segregation where information is focal in densely connected communities of brain regions. This flexibility in cortical brain networks is hypothesized to be driven by control signals...
[ { "created": "Thu, 15 Aug 2024 06:43:52 GMT", "version": "v1" } ]
2024-08-16
[ [ "Nestor", "Kimberly", "" ], [ "Rasero", "Javier", "" ], [ "Betzel", "Richard", "" ], [ "Gianaros", "Peter J.", "" ], [ "Verstynen", "Timothy", "" ] ]
Mammalian functional architecture flexibly adapts, transitioning from integration where information is distributed across the cortex, to segregation where information is focal in densely connected communities of brain regions. This flexibility in cortical brain networks is hypothesized to be driven by control signals o...
1604.07667
Julien Cors
J. Autebert, J. F. Cors, David P. Taylor and G. V. Kaigala
Convection-Enhanced Biopatterning with Recirculation of Hydrodynamically Confined Nanoliter Volumes of Reagents
null
null
10.1021/acs.analchem.5b04649
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new methodology for efficient and high-quality patterning of biological reagents for surface-based biological assays. The method relies on hydrodynamically confined nanoliter volumes of reagents to interact with the substrate at the micrometer-length scale. We study the interplay between diffusion, advec...
[ { "created": "Tue, 26 Apr 2016 13:18:22 GMT", "version": "v1" } ]
2016-04-27
[ [ "Autebert", "J.", "" ], [ "Cors", "J. F.", "" ], [ "Taylor", "David P.", "" ], [ "Kaigala", "G. V.", "" ] ]
We present a new methodology for efficient and high-quality patterning of biological reagents for surface-based biological assays. The method relies on hydrodynamically confined nanoliter volumes of reagents to interact with the substrate at the micrometer-length scale. We study the interplay between diffusion, advecti...
2406.14516
Hermano Velten
Hermano Velten, Carlos Felipe Pinheiro and Alcides Castro e Silva
Extended error threshold mechanism in {\it quasispecies} theory via population dynamics
5 pages, 1 figure
null
null
null
q-bio.PE
http://creativecommons.org/licenses/by/4.0/
We investigate Eigen's model for the evolution of the genetic code of microorganisms using a novel method based on population dynamics analysis. This model, for a given number of offspring, determines long-term survival as a function of the "genetic" information length and copy error probability. There exists a maxim...
[ { "created": "Thu, 20 Jun 2024 17:26:08 GMT", "version": "v1" } ]
2024-06-21
[ [ "Velten", "Hermano", "" ], [ "Pinheiro", "Carlos Felipe", "" ], [ "Silva", "Alcides Castro e", "" ] ]
We investigate Eigen's model for the evolution of the genetic code of microorganisms using a novel method based on population dynamics analysis. This model, for a given number of offspring, determines long-term survival as a function of the "genetic" information length and copy error probability. There exists a maximum...
1011.1212
Jose Vilar
J. M. G. Vilar and L. Saiz
CplexA: a Mathematica package to study macromolecular-assembly control of gene expression
28 pages. Includes Mathematica, Matlab, and Python implementation tutorials. Software can be downloaded at http://cplexa.sourceforge.net/
null
10.1093/bioinformatics/btq328
null
q-bio.QM cond-mat.stat-mech cs.CE physics.bio-ph q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Summary: Macromolecular assembly vertebrates essential cellular processes, such as gene regulation and signal transduction. A major challenge for conventional computational methods to study these processes is tackling the exponential increase of the number of configurational states with the number of components. Cple...
[ { "created": "Thu, 4 Nov 2010 16:59:09 GMT", "version": "v1" }, { "created": "Thu, 13 Dec 2012 16:31:45 GMT", "version": "v2" }, { "created": "Sun, 6 Jan 2013 14:23:03 GMT", "version": "v3" } ]
2013-01-08
[ [ "Vilar", "J. M. G.", "" ], [ "Saiz", "L.", "" ] ]
Summary: Macromolecular assembly vertebrates essential cellular processes, such as gene regulation and signal transduction. A major challenge for conventional computational methods to study these processes is tackling the exponential increase of the number of configurational states with the number of components. CplexA...
q-bio/0407001
Laxmidhar Behera Dr.
Laxmidhar Behera, Indrani Kar and Avshalom Elitzur
Quantum Brain: A Recurrent Quantum Neural Network Model to Describe Eye Tracking of Moving Targets
7 pages, 7 figures submitted to Physical Review Letters
null
10.1007/s10702-005-7125-6
null
q-bio.NC q-bio.OT
null
A theoretical quantum brain model is proposed using a nonlinear Schroedinger wave equation. The model proposes that there exists a quantum process that mediates the collective response of a neural lattice (classical brain). The model is used to explain eye movements when tracking moving targets. Using a Recurrent Qua...
[ { "created": "Fri, 2 Jul 2004 05:11:33 GMT", "version": "v1" } ]
2009-11-10
[ [ "Behera", "Laxmidhar", "" ], [ "Kar", "Indrani", "" ], [ "Elitzur", "Avshalom", "" ] ]
A theoretical quantum brain model is proposed using a nonlinear Schroedinger wave equation. The model proposes that there exists a quantum process that mediates the collective response of a neural lattice (classical brain). The model is used to explain eye movements when tracking moving targets. Using a Recurrent Quant...
1909.02947
Carina Curto
Carina Curto, Jesse Geneson, Katherine Morrison
Stable fixed points of combinatorial threshold-linear networks
30 pages, 6 figures. Minor revisions, added references. To appear in Advances in Applied Mathematics
null
null
null
q-bio.NC
http://creativecommons.org/licenses/by-nc-nd/4.0/
Combinatorial threshold-linear networks (CTLNs) are a special class of recurrent neural networks whose dynamics are tightly controlled by an underlying directed graph. Recurrent networks have long been used as models for associative memory and pattern completion, with stable fixed points playing the role of stored me...
[ { "created": "Tue, 27 Aug 2019 06:36:01 GMT", "version": "v1" }, { "created": "Mon, 15 Aug 2022 02:08:10 GMT", "version": "v2" }, { "created": "Sun, 19 Nov 2023 02:00:19 GMT", "version": "v3" } ]
2023-11-21
[ [ "Curto", "Carina", "" ], [ "Geneson", "Jesse", "" ], [ "Morrison", "Katherine", "" ] ]
Combinatorial threshold-linear networks (CTLNs) are a special class of recurrent neural networks whose dynamics are tightly controlled by an underlying directed graph. Recurrent networks have long been used as models for associative memory and pattern completion, with stable fixed points playing the role of stored memo...
2009.03187
Keith Dillon
Keith Dillon
The Resolution Matrix for Visualizing Functional Network Connectivity
null
null
null
null
q-bio.NC cs.SI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The resolution matrix is a mathematical tool for analyzing inverse problems such as computational imaging systems. When treating network connectivity estimation as an inverse problem, the resolution matrix describes the degree to which network nodes and edges can be resolved. This is useful both for quantifying robus...
[ { "created": "Fri, 4 Sep 2020 13:10:19 GMT", "version": "v1" } ]
2020-09-08
[ [ "Dillon", "Keith", "" ] ]
The resolution matrix is a mathematical tool for analyzing inverse problems such as computational imaging systems. When treating network connectivity estimation as an inverse problem, the resolution matrix describes the degree to which network nodes and edges can be resolved. This is useful both for quantifying robustn...
2304.13796
Mason A. Porter
Elisa C. Baek, Ryan Hyon, Karina L\'opez, Mason A. Porter, and Carolyn Parkinson
Perceived community alignment increases information sharing
44 pages, including main text + supplementary information
null
null
null
q-bio.NC cs.SI physics.soc-ph
http://creativecommons.org/licenses/by/4.0/
Information sharing is a ubiquitous and consequential behavior that has been proposed to play a critical role in cultivating and maintaining a sense of shared reality. Across three studies, we tested this theory by investigating whether or not people are especially likely to share information that they believe will b...
[ { "created": "Wed, 26 Apr 2023 19:28:49 GMT", "version": "v1" } ]
2023-05-01
[ [ "Baek", "Elisa C.", "" ], [ "Hyon", "Ryan", "" ], [ "López", "Karina", "" ], [ "Porter", "Mason A.", "" ], [ "Parkinson", "Carolyn", "" ] ]
Information sharing is a ubiquitous and consequential behavior that has been proposed to play a critical role in cultivating and maintaining a sense of shared reality. Across three studies, we tested this theory by investigating whether or not people are especially likely to share information that they believe will be ...
1803.03475
Anna Doizy
Anna Doizy, Edmund Barter, Jane Memmott, Karen Varnham, Thilo Gross
Impact of cyber-invasive species on a large ecological network
10 pages, 2 figures, 1 table
null
10.1038/s41598-018-31423-4
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As impacts of introduced species cascade through trophic levels, they can cause indirect and counter-intuitive effects. To investigate the impact of invasive species at the network scale, we use a generalized food web model, capable of propagating changes through networks with a series of ecologically realistic crite...
[ { "created": "Fri, 9 Mar 2018 11:33:05 GMT", "version": "v1" }, { "created": "Mon, 6 Aug 2018 09:57:33 GMT", "version": "v2" } ]
2019-07-23
[ [ "Doizy", "Anna", "" ], [ "Barter", "Edmund", "" ], [ "Memmott", "Jane", "" ], [ "Varnham", "Karen", "" ], [ "Gross", "Thilo", "" ] ]
As impacts of introduced species cascade through trophic levels, they can cause indirect and counter-intuitive effects. To investigate the impact of invasive species at the network scale, we use a generalized food web model, capable of propagating changes through networks with a series of ecologically realistic criteri...
1307.4137
Michael DeGiorgio
Michael DeGiorgio, Kirk E. Lohmueller, Rasmus Nielsen
A model-based approach for identifying signatures of balancing selection in genetic data
null
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While much effort has focused on detecting positive and negative directional selection in the human genome, relatively little work has been devoted to balancing selection. This lack of attention is likely due to the paucity of sophisticated methods for identifying sites under balancing selection. Here we develop two ...
[ { "created": "Tue, 16 Jul 2013 00:55:29 GMT", "version": "v1" } ]
2013-07-17
[ [ "DeGiorgio", "Michael", "" ], [ "Lohmueller", "Kirk E.", "" ], [ "Nielsen", "Rasmus", "" ] ]
While much effort has focused on detecting positive and negative directional selection in the human genome, relatively little work has been devoted to balancing selection. This lack of attention is likely due to the paucity of sophisticated methods for identifying sites under balancing selection. Here we develop two co...
1003.1895
Dietrich Stauffer
D. Stauffer and S. Cebrat
Review of haplotype complementarity under mutational pressure
13 pages including 8 figures
null
null
null
q-bio.PE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
No abstract; review only
[ { "created": "Tue, 9 Mar 2010 15:10:07 GMT", "version": "v1" } ]
2010-03-10
[ [ "Stauffer", "D.", "" ], [ "Cebrat", "S.", "" ] ]
No abstract; review only
2212.05184
Mehrdad Zandigohar
Mehrdad Zandigohar and Yang Dai
Information retrieval in single cell chromatin analysis using TF-IDF transformation methods
6 pages, 4 figures, 3 tables. Accepted to the 2022 IEEE International Conference on Bioinformatics and Biomedicine (BIBM)
null
null
null
q-bio.GN cs.IR cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Single-cell sequencing assay for transposase-accessible chromatin (scATAC-seq) assesses genome-wide chromatin accessibility in thousands of cells to reveal regulatory landscapes in high resolutions. However, the analysis presents challenges due to the high dimensionality and sparsity of the data. Several methods have...
[ { "created": "Sat, 10 Dec 2022 02:50:01 GMT", "version": "v1" } ]
2022-12-13
[ [ "Zandigohar", "Mehrdad", "" ], [ "Dai", "Yang", "" ] ]
Single-cell sequencing assay for transposase-accessible chromatin (scATAC-seq) assesses genome-wide chromatin accessibility in thousands of cells to reveal regulatory landscapes in high resolutions. However, the analysis presents challenges due to the high dimensionality and sparsity of the data. Several methods have b...
1110.1413
Yuriy Mileyko
Yuriy Mileyko, Herbert Edelsbrunner, Charles A. Price, Joshua S. Weitz
Hierarchical ordering of reticular networks
9 pages, 5 figures, During preparation of this manuscript the authors became aware of a related work by Katifori and Magnasco, concurrently submitted for publication
null
10.1371/journal.pone.0036715
null
q-bio.QM cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The structure of hierarchical networks in biological and physical systems has long been characterized using the Horton-Strahler ordering scheme. The scheme assigns an integer order to each edge in the network based on the topology of branching such that the order increases from distal parts of the network (e.g., moun...
[ { "created": "Thu, 6 Oct 2011 23:27:01 GMT", "version": "v1" } ]
2015-05-30
[ [ "Mileyko", "Yuriy", "" ], [ "Edelsbrunner", "Herbert", "" ], [ "Price", "Charles A.", "" ], [ "Weitz", "Joshua S.", "" ] ]
The structure of hierarchical networks in biological and physical systems has long been characterized using the Horton-Strahler ordering scheme. The scheme assigns an integer order to each edge in the network based on the topology of branching such that the order increases from distal parts of the network (e.g., mounta...
q-bio/0309033
Alexander Volkovskii
M. I. Rabinovich, R. Huerta, A. Volkovskii, Henry D. I. Abarbanel, and G. Laurent
Sensory Coding with Dynamically Competitive Networks
19 pages, 16 figures. Originally submitted to the neuro-sys archive which was never publicly announced (was 9905002)
null
null
null
q-bio.NC
null
Studies of insect olfactory processing indicate that odors are represented by rich spatio-temporal patterns of neural activity. These patterns are very difficult to predict a priori, yet they are stimulus specific and reliable upon repeated stimulation with the same input. We formulate here a theoretical framework in...
[ { "created": "Fri, 21 May 1999 23:21:02 GMT", "version": "v1" }, { "created": "Mon, 24 May 1999 01:18:27 GMT", "version": "v2" } ]
2007-05-23
[ [ "Rabinovich", "M. I.", "" ], [ "Huerta", "R.", "" ], [ "Volkovskii", "A.", "" ], [ "Abarbanel", "Henry D. I.", "" ], [ "Laurent", "G.", "" ] ]
Studies of insect olfactory processing indicate that odors are represented by rich spatio-temporal patterns of neural activity. These patterns are very difficult to predict a priori, yet they are stimulus specific and reliable upon repeated stimulation with the same input. We formulate here a theoretical framework in w...
1204.1324
Marc Emanuel
Marc Emanuel, Giovanni Lanzani, Helmut Schiessel
Multi-plectoneme phase of double-stranded DNA under torsion
4 pages, 6 figures, submitted, 2 typo's corrected, one reference added
null
null
null
q-bio.BM cond-mat.soft
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use the worm-like chain model to study supercoiling of DNA under tension and torque. The model reproduces experimental data for a much broader range of forces, salt concentrations and contour lengths than previous approaches. Our theory shows, for the first time, how the behavior of the system is controlled by a m...
[ { "created": "Thu, 5 Apr 2012 19:42:17 GMT", "version": "v1" }, { "created": "Mon, 9 Apr 2012 09:57:28 GMT", "version": "v2" } ]
2012-04-10
[ [ "Emanuel", "Marc", "" ], [ "Lanzani", "Giovanni", "" ], [ "Schiessel", "Helmut", "" ] ]
We use the worm-like chain model to study supercoiling of DNA under tension and torque. The model reproduces experimental data for a much broader range of forces, salt concentrations and contour lengths than previous approaches. Our theory shows, for the first time, how the behavior of the system is controlled by a mul...
2402.06748
Peter Mikhael
Peter G. Mikhael, Itamar Chinn, Regina Barzilay
CLIPZyme: Reaction-Conditioned Virtual Screening of Enzymes
null
null
null
null
q-bio.QM
http://creativecommons.org/licenses/by-nc-sa/4.0/
Computational screening of naturally occurring proteins has the potential to identify efficient catalysts among the hundreds of millions of sequences that remain uncharacterized. Current experimental methods remain time, cost and labor intensive, limiting the number of enzymes they can reasonably screen. In this work...
[ { "created": "Fri, 9 Feb 2024 19:23:26 GMT", "version": "v1" } ]
2024-02-13
[ [ "Mikhael", "Peter G.", "" ], [ "Chinn", "Itamar", "" ], [ "Barzilay", "Regina", "" ] ]
Computational screening of naturally occurring proteins has the potential to identify efficient catalysts among the hundreds of millions of sequences that remain uncharacterized. Current experimental methods remain time, cost and labor intensive, limiting the number of enzymes they can reasonably screen. In this work, ...
1903.07855
Axel Brandenburg
Axel Brandenburg
The limited roles of autocatalysis and enantiomeric cross inhibition in achieving homochirality in dilute systems
14 pages, 5 figures, 2 tables, Orig. Life Evol. Biosph., in press
Orig. Life Evol. Biosph. 49, 49-60 (2019)
10.1007/s11084-019-09579-4
Nordita-2019-023
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
To understand the effects of fluctuations on achieving homochirality, we employ a Monte-Carlo method where autocatalysis and enantiomeric cross-inhibition, as well as racemization and deracemization reactions are included. The results of earlier work either without autocatalysis or without cross-inhibition are reprod...
[ { "created": "Tue, 19 Mar 2019 06:28:19 GMT", "version": "v1" }, { "created": "Wed, 5 Jun 2019 11:57:56 GMT", "version": "v2" } ]
2019-08-26
[ [ "Brandenburg", "Axel", "" ] ]
To understand the effects of fluctuations on achieving homochirality, we employ a Monte-Carlo method where autocatalysis and enantiomeric cross-inhibition, as well as racemization and deracemization reactions are included. The results of earlier work either without autocatalysis or without cross-inhibition are reproduc...
2207.13212
Alicia Shin
Alicia Shin
The History, Current Status, Benefits, and Challenges of 3D Printed Organs
7 pages
null
null
null
q-bio.TO
http://creativecommons.org/publicdomain/zero/1.0/
There is an increase in demand for organs as transplantation is becoming a common practice to elongate human life. To reach this demand, three-dimensional bioprinting is developing from prior knowledge of scaffolds, growth factors, etc. This review paper aims to determine the current status and future possibilities o...
[ { "created": "Tue, 26 Jul 2022 23:21:30 GMT", "version": "v1" }, { "created": "Mon, 12 Sep 2022 02:17:31 GMT", "version": "v2" }, { "created": "Tue, 27 Dec 2022 20:31:43 GMT", "version": "v3" } ]
2022-12-29
[ [ "Shin", "Alicia", "" ] ]
There is an increase in demand for organs as transplantation is becoming a common practice to elongate human life. To reach this demand, three-dimensional bioprinting is developing from prior knowledge of scaffolds, growth factors, etc. This review paper aims to determine the current status and future possibilities of ...
1903.02594
Pavel Kraikivski
Pavel Kraikivski
Systems of Oscillators Designed for a Specific Conscious Percept
submitted to New Mathematics and Natural Computation journal on July 2017
null
10.1142/S1793005720500052
null
q-bio.NC
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As put forward by neuroscientists, the mechanisms of consciousness can be elucidated by revealing correlations between neural dynamics and specific conscious percepts. Recently, I have elaborated on the mathematical formulation for a system of processes that are mutually connected to be isomorphic to a conscious perc...
[ { "created": "Tue, 5 Mar 2019 15:34:55 GMT", "version": "v1" } ]
2019-09-10
[ [ "Kraikivski", "Pavel", "" ] ]
As put forward by neuroscientists, the mechanisms of consciousness can be elucidated by revealing correlations between neural dynamics and specific conscious percepts. Recently, I have elaborated on the mathematical formulation for a system of processes that are mutually connected to be isomorphic to a conscious percep...
2403.10993
Ryota Kobayashi
Ryota Kobayashi and Shigeru Shinomoto
Inference of Monosynaptic Connections from Parallel Spike Trains: A Review
11 pages, 3 figures
null
null
null
q-bio.NC q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This article presents a mini-review about the progress in inferring monosynaptic connections from spike trains of multiple neurons over the past twenty years. First, we explain a variety of meanings of ``neuronal connectivity'' in different research areas of neuroscience, such as structural connectivity, monosynaptic...
[ { "created": "Sat, 16 Mar 2024 18:42:13 GMT", "version": "v1" } ]
2024-03-19
[ [ "Kobayashi", "Ryota", "" ], [ "Shinomoto", "Shigeru", "" ] ]
This article presents a mini-review about the progress in inferring monosynaptic connections from spike trains of multiple neurons over the past twenty years. First, we explain a variety of meanings of ``neuronal connectivity'' in different research areas of neuroscience, such as structural connectivity, monosynaptic c...
2401.01489
Dmitri Chklovskii
Jason Moore, Alexander Genkin, Magnus Tournoy, Joshua Pughe-Sanford, Rob R. de Ruyter van Steveninck, and Dmitri B. Chklovskii
The Neuron as a Direct Data-Driven Controller
null
null
null
null
q-bio.NC cs.AI cs.SY eess.SY
http://creativecommons.org/licenses/by/4.0/
In the quest to model neuronal function amidst gaps in physiological data, a promising strategy is to develop a normative theory that interprets neuronal physiology as optimizing a computational objective. This study extends the current normative models, which primarily optimize prediction, by conceptualizing neurons...
[ { "created": "Wed, 3 Jan 2024 01:24:10 GMT", "version": "v1" } ]
2024-01-04
[ [ "Moore", "Jason", "" ], [ "Genkin", "Alexander", "" ], [ "Tournoy", "Magnus", "" ], [ "Pughe-Sanford", "Joshua", "" ], [ "van Steveninck", "Rob R. de Ruyter", "" ], [ "Chklovskii", "Dmitri B.", "" ] ]
In the quest to model neuronal function amidst gaps in physiological data, a promising strategy is to develop a normative theory that interprets neuronal physiology as optimizing a computational objective. This study extends the current normative models, which primarily optimize prediction, by conceptualizing neurons a...
2309.09900
Giulia Garcia Lorenzana
Giulia Garcia Lorenzana, Ada Altieri, Giulio Biroli
Interactions and migration rescuing ecological diversity
13 pages, 10 figures, + 14 pages, 6 figures in Appendix
null
10.1103/PRXLife.2.013014
null
q-bio.PE cond-mat.dis-nn cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
How diversity is maintained in natural ecosystems is a long-standing question in Theoretical Ecology. By studying a system that combines ecological dynamics, heterogeneous interactions and spatial structure, we uncover a new mechanism for the survival of diversity-rich ecosystems in the presence of demographic fluctu...
[ { "created": "Mon, 18 Sep 2023 16:05:03 GMT", "version": "v1" }, { "created": "Mon, 5 Feb 2024 11:25:58 GMT", "version": "v2" } ]
2024-03-21
[ [ "Lorenzana", "Giulia Garcia", "" ], [ "Altieri", "Ada", "" ], [ "Biroli", "Giulio", "" ] ]
How diversity is maintained in natural ecosystems is a long-standing question in Theoretical Ecology. By studying a system that combines ecological dynamics, heterogeneous interactions and spatial structure, we uncover a new mechanism for the survival of diversity-rich ecosystems in the presence of demographic fluctuat...
1911.00072
Gurpreet Singh Matharoo
Gurpreet S. Matharoo and Javeria A. Hashmi
Spontaneous back-pain alters randomness in functional connections in large scale brain networks: A random matrix perspective
18 Pages, 5 Figures
Physica A; 2019
10.1016/j.physa.2019.123321
null
q-bio.NC cond-mat.dis-nn
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use randomness as a measure to assess the impact of evoked pain on brain networks. Randomness is defined here as the intrinsic correlations that exist between different brain regions when the brain is in a task-free state. We use fMRI data of three brain states in a set of back pain patients monitored over a perio...
[ { "created": "Thu, 31 Oct 2019 19:37:32 GMT", "version": "v1" } ]
2019-11-04
[ [ "Matharoo", "Gurpreet S.", "" ], [ "Hashmi", "Javeria A.", "" ] ]
We use randomness as a measure to assess the impact of evoked pain on brain networks. Randomness is defined here as the intrinsic correlations that exist between different brain regions when the brain is in a task-free state. We use fMRI data of three brain states in a set of back pain patients monitored over a period ...
2306.01793
Giulia Chiari
Giulia Chiari, Giada Fiandaca, Marcello Edoardo Delitala
Hypoxia-resistance heterogeneity in tumours: the impact of geometrical characterization of environmental niches and evolutionary trade-offs. A mathematical approach
null
null
10.1051/mmnp/2023023
null
q-bio.PE cs.NA math.AP math.NA physics.med-ph
http://creativecommons.org/licenses/by-sa/4.0/
In the study of cancer evolution and therapeutic strategies, scientific evidence shows that a key dynamics lies in the tumor-environment interaction. In particular, oxygen concentration plays a central role in the determination of the phenotypic heterogeneity of cancer cell populations, whose qualitative and geometri...
[ { "created": "Thu, 1 Jun 2023 09:03:58 GMT", "version": "v1" } ]
2023-07-20
[ [ "Chiari", "Giulia", "" ], [ "Fiandaca", "Giada", "" ], [ "Delitala", "Marcello Edoardo", "" ] ]
In the study of cancer evolution and therapeutic strategies, scientific evidence shows that a key dynamics lies in the tumor-environment interaction. In particular, oxygen concentration plays a central role in the determination of the phenotypic heterogeneity of cancer cell populations, whose qualitative and geometric ...
2210.05713
Ziyuan Ye
Ziyuan Ye, Youzhi Qu, Zhichao Liang, Mo Wang, Quanying Liu
Explainable fMRI-based Brain Decoding via Spatial Temporal-pyramid Graph Convolutional Network
null
null
null
null
q-bio.NC cs.NE eess.SP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Brain decoding, aiming to identify the brain states using neural activity, is important for cognitive neuroscience and neural engineering. However, existing machine learning methods for fMRI-based brain decoding either suffer from low classification performance or poor explainability. Here, we address this issue by p...
[ { "created": "Sat, 8 Oct 2022 12:14:33 GMT", "version": "v1" } ]
2022-10-13
[ [ "Ye", "Ziyuan", "" ], [ "Qu", "Youzhi", "" ], [ "Liang", "Zhichao", "" ], [ "Wang", "Mo", "" ], [ "Liu", "Quanying", "" ] ]
Brain decoding, aiming to identify the brain states using neural activity, is important for cognitive neuroscience and neural engineering. However, existing machine learning methods for fMRI-based brain decoding either suffer from low classification performance or poor explainability. Here, we address this issue by pro...
1611.07776
David Lukatsky
Matan Goldshtein and David B. Lukatsky
Specificity-determining DNA triplet code for positioning of human pre-initiation complex
null
null
10.1016/j.bpj.2017.04.023
null
q-bio.BM q-bio.GN q-bio.MN q-bio.QM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The notion that transcription factors bind DNA only through specific, consensus binding sites has been recently questioned. In a pioneering study by Pugh and Venters no specific consensus motif for the positioning of the human pre-initiation complex (PIC) has been identified. Here, we reveal that nonconsensus, statis...
[ { "created": "Wed, 23 Nov 2016 13:07:49 GMT", "version": "v1" } ]
2017-06-28
[ [ "Goldshtein", "Matan", "" ], [ "Lukatsky", "David B.", "" ] ]
The notion that transcription factors bind DNA only through specific, consensus binding sites has been recently questioned. In a pioneering study by Pugh and Venters no specific consensus motif for the positioning of the human pre-initiation complex (PIC) has been identified. Here, we reveal that nonconsensus, statisti...
2002.09631
Alfonso Vivanco Lira
A. Vivanco-Lira
Novel therapeutic targets in chronic myeloid leukaemia through a discrete time discrete Markov chain model of BCR-ABL1 interactions
32 pages, 1 table, 6 figures
null
null
null
q-bio.CB q-bio.MN
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chronic Myeloid Leukaemia (CML) is a blood-derived proliferative disorder, which is highly associated to a translocation of chromosomes 9 and 22 or the creation of Philadelphia chromosome Ph(+) cases, inducing the synthesis of a chimeric fusion protein, namely BCR-ABL1 (Breakpoint Cluster Region-Abelson 1 chimeric pr...
[ { "created": "Sat, 22 Feb 2020 05:29:04 GMT", "version": "v1" } ]
2020-02-25
[ [ "Vivanco-Lira", "A.", "" ] ]
Chronic Myeloid Leukaemia (CML) is a blood-derived proliferative disorder, which is highly associated to a translocation of chromosomes 9 and 22 or the creation of Philadelphia chromosome Ph(+) cases, inducing the synthesis of a chimeric fusion protein, namely BCR-ABL1 (Breakpoint Cluster Region-Abelson 1 chimeric prot...
2006.08647
Andres Escala
Andres Escala
Universal Relation for Life-span Energy Consumption in Living Organisms: Insights for the origin of ageing
Comments welcome aescala@das.uchile.cl
null
null
null
q-bio.OT physics.bio-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Metabolic energy consumption has long been thought to play a major role in the aging process ({\it 1}). Across species, a gram of tissue on average expends about the same amount of energy during life-span ({\it 2}). Energy restriction has also been shown that increases maximum life-span ({\it 3}) and retards age-asso...
[ { "created": "Mon, 15 Jun 2020 18:00:32 GMT", "version": "v1" } ]
2020-06-17
[ [ "Escala", "Andres", "" ] ]
Metabolic energy consumption has long been thought to play a major role in the aging process ({\it 1}). Across species, a gram of tissue on average expends about the same amount of energy during life-span ({\it 2}). Energy restriction has also been shown that increases maximum life-span ({\it 3}) and retards age-associ...
1308.3032
Fabio Pichierri
Fabio Pichierri
Dipole-dipole interactions in protein-protein complexes: a quantum mechanical study of the ubiquitin-Dsk2 complex
8 pages, 2 figures
null
null
null
q-bio.BM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum mechanical calculations are performed on the proteins that constitute the ubiquitin-Dsk2 complex whose atomic structure has been experimentally determined by NMR spectroscopy (PDB id 1WR1). The results indicate that the dipole moment vectors of the two proteins are aligned in a head-to-tail orientation while ...
[ { "created": "Wed, 14 Aug 2013 04:53:31 GMT", "version": "v1" } ]
2013-08-15
[ [ "Pichierri", "Fabio", "" ] ]
Quantum mechanical calculations are performed on the proteins that constitute the ubiquitin-Dsk2 complex whose atomic structure has been experimentally determined by NMR spectroscopy (PDB id 1WR1). The results indicate that the dipole moment vectors of the two proteins are aligned in a head-to-tail orientation while fo...
0904.3584
Hu Chen
Hu Chen, Yanhui Liu, Zhen Zhou, Lin Hu, Zhong-Can Ou-Yang, and Jie Yan
Temperature dependence of circular DNA topological states
15 pages in preprint format, 4 figures
PHYSICAL REVIEW E 79, 041926 (2009)
10.1103/PhysRevE.79.041926
null
q-bio.BM q-bio.QM
http://creativecommons.org/licenses/by-nc-sa/3.0/
Circular double stranded DNA has different topological states which are defined by their linking numbers. Equilibrium distribution of linking numbers can be obtained by closing a linear DNA into a circle by ligase. Using Monte Carlo simulation, we predict the temperature dependence of the linking number distribution ...
[ { "created": "Thu, 23 Apr 2009 02:34:28 GMT", "version": "v1" } ]
2009-05-04
[ [ "Chen", "Hu", "" ], [ "Liu", "Yanhui", "" ], [ "Zhou", "Zhen", "" ], [ "Hu", "Lin", "" ], [ "Ou-Yang", "Zhong-Can", "" ], [ "Yan", "Jie", "" ] ]
Circular double stranded DNA has different topological states which are defined by their linking numbers. Equilibrium distribution of linking numbers can be obtained by closing a linear DNA into a circle by ligase. Using Monte Carlo simulation, we predict the temperature dependence of the linking number distribution of...
2201.00850
Michael McCreesh
Michael McCreesh and Jorge Cort\'es
Selective Inhibition and Recruitment of Linear-Threshold Thalamocortical Networks
13 pages, 5 figures
null
null
null
q-bio.NC cs.SY eess.SY
http://creativecommons.org/licenses/by/4.0/
Neuroscientific evidence shows that for most brain networks all pathways between cortical regions either pass through the thalamus or a transthalamic parallel route exists for any direct corticocortical connection. This paper seeks to formally study the dynamical behavior of the resulting thalamocortical brain networ...
[ { "created": "Mon, 3 Jan 2022 19:38:10 GMT", "version": "v1" }, { "created": "Fri, 8 Jul 2022 19:57:11 GMT", "version": "v2" } ]
2022-07-12
[ [ "McCreesh", "Michael", "" ], [ "Cortés", "Jorge", "" ] ]
Neuroscientific evidence shows that for most brain networks all pathways between cortical regions either pass through the thalamus or a transthalamic parallel route exists for any direct corticocortical connection. This paper seeks to formally study the dynamical behavior of the resulting thalamocortical brain networks...