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Transition and Halting Modes in (Tissue) P Systems
[chapter]
2010
Lecture Notes in Computer Science
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A variety of different transition modes for tissue P systems as well as several halting modes currently are used in the area of membrane computing. ...
In this paper, the definitions of the most important transition modes and halting modes are explained based on networks of cells, a general model for tissue P systems. ...
Verlan, yet most of all to Gheorghe Pȃun, whose great ideas have inspired myself to develop many new variants of P systems. ...
doi:10.1007/978-3-642-11467-0_3
fatcat:vxuggoii5vbejm6szcr6qmtsge
Tissue P systems
2003
Theoretical Computer Science
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P system, which processes symbols in a multiset rewriting sense, in a net of cells. ...
Moreover, in the case when each cell works in the maximal manner and it can excite all the cells to which it can send impulses, then one can easily solve the Hamiltonian Path Problem in linear time. ...
communication for the minimal mode of using the rules, and, in the cooperative case, also when using the parallel or the maximal mode of processing the objects. ...
doi:10.1016/s0304-3975(02)00659-x
fatcat:zsvxrwsyszf3fck3l3tlbxf5ni
Monodirectional Tissue P Systems With Promoters
2020
IEEE Transactions on Cybernetics
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Monodirectional tissue P systems are Turing universal with two cells, a maximal length 2, and at most one promoter for each symport rule, and working in the maximally parallel mode or with three cells, ...
in the maximally parallel mode. ...
or l k as using rules in the flat maximally parallel mode. ...
doi:10.1109/tcyb.2020.3003060
pmid:32649286
fatcat:oz2bvymnjjcurm7t6nee43ttli
A New Class of Symbolic Abstract Neural Nets: Tissue P Systems
[chapter]
2002
Lecture Notes in Computer Science
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P system, which processes symbols in a multiset rewriting sense, in a net of cells similar to a neural net. ...
Moreover, in the case when each cell works in the maximal manner and it can excite all the cells to which it can send impulses, then one can easily solve the Hamiltonian Path Problem in linear time. ...
the rules, and, in the cooperative case, also when using the parallel or the maximal mode of processing objects. ...
doi:10.1007/3-540-45655-4_32
fatcat:mk75eiqnnbbbvml4plxuqsnzye
Timed Homeostasis Tissue-like P Systems with Evolutional Symport/antiport Rules
2020
IEEE Access
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Tissue-like P systems are a type of distributed parallel computing models inspired by actual biological tissue. ...
Moreover, the time-free mode is introduced into this type of P systems, which makes the constructed systems more robust. ...
TIMED P SYSTEMS If a P system works in the time-free mode, we call it timed P system. ...
doi:10.1109/access.2020.3005459
fatcat:keey2zopdjbnpgr5vsdpi7zydm
ω -P Automata with Communication Rules
[chapter]
2004
Lecture Notes in Computer Science
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., (Tissue) P systems working in the k-restricted minimally parallel derivation mode, in: E. Csuhaj-Varjú, R. Freund, M. Oswald, K. ...
k-Restricted Minimally Parallel Transition Mode Definition For the k-restricted minimally parallel transition mode (min k ), we define Appl (Π, C , min k ) = {R | R ∈ Appl (Π, C , min) and |R ∩ R j | ...
of a P automaton; taking the same construction for generating P systems, this is a challenging question -either we do not care about these "garbage" symbols or we have to add an output membrane. ...
doi:10.1007/978-3-540-24619-0_15
fatcat:7m63tnr4snee7pkwddcrpcpivm
Self-organized tissue mechanics underlie embryonic regulation
[article]
2021
bioRxiv
pre-print
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This mechanical feedback governs the persistent pattern of tissue flows that shape the embryo and steers the concomitant emergence of embryonic territories by modulating gene expression, ensuring the formation ...
Analyzing intact and mechanically perturbed avian embryos, we show that the mechanical forces that drive embryogenesis self-organize in an analog of Turing's molecular reaction-diffusion model, with contractility ...
Funding: PC was part of the Pasteur-Paris University (PPU) International PhD Program and obtained a 4 th -year fellowship from the Foundation pour la Recherche Medical (FRM). ...
doi:10.1101/2021.10.08.463661
fatcat:bq5nlh6ewjeidfqeh3siypdtkm
Simple mechanical cues could explain adipose tissue morphology
[article]
2017
arXiv
pre-print
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In this paper, we investigate this question on adipose tissue. Adipose tissue can represent 20 to 50% of the body weight. ...
The mechanisms by which organs acquire their functional structure and realize its maintenance (or homeostasis) over time are still largely unknown. ...
P(p t+∆t km = 1|p t km = 0) describes the transition probability for a transition of p t km from 0 to 1 during the time interval [t, t + ∆t] while P(p t+∆t km = 0|p t km = 1) refers to the transition probability ...
arXiv:1703.04729v2
fatcat:elqbtpu525fhzn32qasu6fnum4
Simple mechanical cues could explain adipose tissue morphology
2017
Journal of Theoretical Biology
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Author Summary Because of the key role of adipose tissue in energy homeostasis and associated diseases, there is a great deal of interest in understanding the biology of this tissue. ...
In this paper, we investigate this question on adipose tissue. Adipose tissue can represent 20 to 50% of the body weight. ...
P (p t+ t km = 1 | p t km = 0) describes the transition probability for a transition of p t km from 0 to 1 during the time interval [ t , t + t ] while P (p t+ t km = 0 | p t km = 1) refers to the transition ...
doi:10.1016/j.jtbi.2017.06.030
pmid:28652001
fatcat:efwc5vmqe5afhggcm6fifesknu
- Tissue Optical Clearing
[chapter]
2016
Advanced Biophotonics
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the scattering phase function p 0 (k i − k s ) = p(k i − k s , 0), b Γ(R 2 , R 1 ,t|k s , k i ) = Γ R l −1 s p(k i − k s ,t)δ (R 2 − R 1 ) b I + Γ 2 R l −2 s p(k s − k 21 ,t)× b Λ(R 21 )p(k 21 − k i , ...
in the so-called parallel polarization channels [147] . ...
doi:10.1201/b15256-21
fatcat:bjn4pqwtszg3lmwu24nckcjyci
Dynamics of wave fronts and filaments in anisotropic cardiac tissue
[article]
2015
arXiv
pre-print
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We derive for the first time the covariant laws of motion for traveling wave fronts and scroll wave filaments in anisotropic excitable media such as cardiac tissue. ...
The instability of scroll wave filaments has been linked to transition from ventricular tachycardia to fibrillation. ...
Note that geodesics can be curves that either minimize or maximize the length between given endpoints. ...
arXiv:1511.03685v1
fatcat:atzrzq3fkffdvdcaxezfj3uxyu
Adapting a plant tissue model to animal development: introducing cell sliding into VirtualLeaf
[article]
2019
arXiv
pre-print
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They represent the junctions between three (or sometimes more) cells in confluent tissues as point particles, connected using structural elements that represent the cell boundaries. ...
This is a suitable simplification for epithelial tissues, where the interfaces are typically under tension, but this simplification may not be appropriate for mesenchymal tissues or tissues that are under ...
VirtualLeaf takes the CPM "off the lattice", with the current restriction that tissues must be confluent. ...
arXiv:1810.12212v2
fatcat:wmwwpan5prcdbpdhh4yrkztgtu
Pulsed Photoacoustic Techniques and Glucose Determination in Human Blood and Tissue
[chapter]
2008
Handbook of Optical Sensing of Glucose in Biological Fluids and Tissues
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The system has a broad laser transition linewidth, resulting in a wide tuning range. The Ti 3+ sapphire laser can be operated in CW or pulsed mode, with an emission range from 660 nm to 1180 nm. ...
In liquid or soft tissue detection, the acoustic wave is longitudinal, so only vibrations in the thickness mode are considered. ...
doi:10.1201/9781584889755.ch14
fatcat:dyij4hoqrvabvmoffxud5bi3my
Molecular Rheology of Coniferous Wood Tissues
1973
Transactions of the Society of Rheology
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This energy transfer system of wood is further ^ facilitated by the existence of a systematic structure of wood microfibrils which permits a zone of gradual transition from high crystallinity to a diffuse ...
Regardless of the form of external excitation (creep or stress relaxation), and the time of excitation (ramp-or step-loading), the basic pattern of the two-stage molecular motion was followed, while damping ...
This means that the alignment of 1,4-0-p-D-linkage in latewoods is more parallel to the fibre axis than that of earlywoods. ...
doi:10.1122/1.549313
fatcat:45frrv5ilbduplt4ro7cogkvii
Post-Turing tissue pattern formation: Advent of mechanochemistry
2018
PLoS Computational Biology
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In this study, we thus focus on the interplay between chemical and mechanical processes during tissue development. ...
On one hand, based on recent experimental data, we develop new mechanochemical simulation models of evolving tissues, in which the full 3D representation of the tissue appears to be critical for obtaining ...
Acknowledgments The authors greatly thank Prof. R Rannacher for scientific support.
Author Contributions ...
doi:10.1371/journal.pcbi.1006259
pmid:29969460
pmcid:PMC6047832
fatcat:rk3k3noa6rc23mi5dmfmfkxttm
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