Results 71 to 80 of about 22,515,398 (179)

An acto-myosin II constricting ring initiates the fission of activity-dependent bulk endosomes in neurosecretory cells [PDF]

open access: yes, 2015
Activity-dependent bulk endocytosis allows neurons to internalize large portions of the plasma membrane in response to stimulation. However, whether this critical type of compensatory endocytosis is unique to neurons or also occurs in other excitable ...
Gormal, Rachel S   +4 more
core   +1 more source

Cubical token systems [PDF]

open access: yesarXiv, 2006
The paper deals with combinatorial and stochastic structures of cubical token systems. A cubical token system is an instance of a token system, which in turn is an instance of a transition system. It is shown that some basic results of combinatorial and stochastic parts of media theory hold almost in identical form for cubical token systems, although ...
arxiv  

Novel cell types, neurosecretory cells, and body plan of the early-diverging metazoan Trichoplax adhaerens. [PDF]

open access: yes, 2014
BACKGROUND: Trichoplax adhaerens is the best-known member of the phylum Placozoa, one of the earliest-diverging metazoan phyla. It is a small disk-shaped animal that glides on surfaces in warm oceans to feed on algae.
Azzam, R.N.   +8 more
core   +1 more source

Separable bi-Hamiltonian systems with quadratic in momenta first integrals [PDF]

open access: yesarXiv, 2003
Geometric separability theory of Gel'fand-Zakharevich bi-Hamiltonian systems on Riemannian manifolds is reviewed and developed. Particular attention is paid to the separability of systems generated by the so-called special conformal Killing tensors, i.e. Benenti systems.
arxiv  

A Step towards an Easy Interconversion of Various Number Systems [PDF]

open access: yesarXiv, 2011
Any system that is used for naming or representing numbers is a number system, also known as numeral system. The modern civilization is familiar with decimal number system using ten digits. However digital devices and computers use binary number system instead of decimal number system, using only two digits namely, 0 and 1 based on the fundamental ...
arxiv  

Nonlinear Modal Decoupling of Multi-Oscillator Systems with Applications to Power Systems [PDF]

open access: yesarXiv, 2016
Many natural and manmade dynamical systems that are modeled as large nonlinear multi-oscillator systems like power systems are hard to analyze. For such a system, we propose a nonlinear modal decoupling (NMD) approach inversely constructing as many decoupled nonlinear oscillators as the system oscillation modes so that individual decoupled oscillators ...
arxiv  

Functional-morphological parallels of the hypothalamo-pituitary-adrenal system response reaction to long-term hypokinesia [PDF]

open access: yes
The effect of 2 and 4 week hypokinesia regimens on the hypothalamo-pituitary-adrenal system (HPAS) was investigated in 110 inbred mice. Progressive exhaustion and pathological reorganization of the HPAS morphofunctional structures was revealed.
Razin, S. I.   +2 more
core   +1 more source

Classification and mapping of neurosecretory cells in the optic, supraoesophageal and thoracic ganglia of the female spiny lobster Panulirus homarus (Linnaeus, 1758) and their secretory activity during vitellogenesis [PDF]

open access: yes, 2010
The crustacean endocrine system consists of epithelial type of endocrine glands and endocrine structures of neural origin. The neurosecretory cells are of great significance in the crustacean endocrine system with respect to the number of neurohormones
Fernandez, Rachel, Radhakrishnan, E V
core  

USSR space life sciences digest, issue 27 [PDF]

open access: yes
This is the twenty-fifth issue of NASA's Space Life Sciences Digest. It contains abstracts of 30 journal papers or book chapters published in Russian and of 2 Soviet monographs. Selected abstracts are illustrated with figures and tables from the original.
Frey, Mary Ann   +4 more
core   +2 more sources

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