592 research outputs found
Π‘ΠΈΡΡΠ΅ΠΌΡ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ ΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄ΠΎΡΡΡΠΏΠΎΠΌ ΠΊΠ°ΠΊ ΡΡΠ΅Π΄ΡΡΠ²ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΎΠ±ΡΠ΅ΠΊΡΠ° Π·Π°ΡΠΈΡΡ
ΠΠΎΠ΄ ΡΠΈΡΡΠ΅ΠΌΠ°ΠΌΠΈ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ ΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄ΠΎΡΡΡΠΏΠΎΠΌ (Π‘ΠΠ£Π) ΠΏΠΎΠ½ΠΈΠΌΠ°ΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ΅Π΄ΡΡΠ² ΠΈ ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΠΎ-ΠΌΠ΅ΡΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ΅ΡΠΎΠΏΡΠΈΡΡΠΈΠΉ, ΠΎΠ±Π»Π°Π΄Π°ΡΡΠΈΡ
ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ, ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ, ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠΉ ΠΈ ΡΠΊΡΠΏΠ»ΡΠ°ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΡΡΡΡ.Access control and management subsystems (SKUD) are a set of technical tools and organizational and methodological measures that have technical, information, software and operational compatibility
Circadian genes in a blind subterranean mammal II: Conservation and uniqueness of the three Period homologs in the blind subterranean mole rat, Spalax ehrenbergi superspecies
Biological clock in total darkness: The Clock/MOP3 circadian system of the blind subterranean mole rat
Cell organization in soft media due to active mechanosensing
Adhering cells actively probe the mechanical properties of their environment
and use the resulting information to position and orient themselves. We show
that a large body of experimental observations can be consistently explained
from one unifying principle, namely that cells strengthen contacts and
cytoskeleton in the direction of large effective stiffness. Using linear
elasticity theory to model the extracellular environment, we calculate optimal
cell organization for several situations of interest and find excellent
agreement with experiments for fibroblasts, both on elastic substrates and in
collagen gels: cells orient in the direction of external tensile strain, they
orient parallel and normal to free and clamped surfaces, respectively, and they
interact elastically to form strings. Our method can be applied for rational
design of tissue equivalents. Moreover our results indicate that the concept of
contact guidance has to be reevaluated. We also suggest that cell-matrix
contacts are upregulated by large effective stiffness in the environment
because in this way, build-up of force is more efficient.Comment: Revtex, 7 pages, 4 Postscript files include
cGMP-Dependent Protein Kinase II Modulates mPer1 and mPer2 Gene Induction and Influences Phase Shifts of the Circadian Clock
A guideline for analyzing circadian wheel-running behavior in rodents under different lighting conditions
Most behavioral experiments within circadian research are based on the analysis of locomotor activity. This paper introduces scientists to chronobiology by explaining the basic terminology used within the field. Furthermore, it aims to assist in designing, carrying out, and evaluating wheel-running experiments with rodents, particularly mice. Since light is an easily applicable stimulus that provokes strong effects on clock phase, the paper focuses on the application of different lighting conditions
Fluctuation theorem for currents and Schnakenberg network theory
A fluctuation theorem is proved for the macroscopic currents of a system in a
nonequilibrium steady state, by using Schnakenberg network theory. The theorem
can be applied, in particular, in reaction systems where the affinities or
thermodynamic forces are defined globally in terms of the cycles of the graph
associated with the stochastic process describing the time evolution.Comment: new version : 16 pages, 1 figure, to be published in Journal of
Statistical Physic
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