Results 41 to 50 of about 2,320,333 (291)

Simple reaction time applied for selecting young talents in tennis [PDF]

, 2012
The present study aimed at presenting the importance of simple reaction times, both cognitive and motor, in selecting potential talents in tennis players.
Andrade, André Gustavo Pereira de, Costa, Varley Teoldo da, Ferreira, Tadeu Sartini, Mello, Marco Tulio de, Moreira, Clarice Zinato, Noce, Franco   +5 more
core   +3 more sources

New reaction tester accurate within 56 microseconds [PDF]

, 1972
Testing device measures simple and disjunctive reaction time of human subject to light stimuli. Tester consists of reaction key, logic card, panel mounted neon indicators, and interconnecting wiring.
Brown, H.
core   +1 more source

Time-resolved photoelectron spectroscopy of proton transfer in the ground state of chloromalonaldehyde: Wave-packet dynamics on effective potential surfaces of reduced dimensionality [PDF]

, 2006
We report on a simple but widely useful method for obtaining time-independent potential surfaces of reduced dimensionality wherein the coupling between reaction and substrate modes is embedded by averaging over an ensemble of classical trajectories ...
Arasaki, Yasuki, McKoy, Vincent, Takatsuka, Kazuo, Ushiyama, Hiroshi, Varella, Márcio T. do N.   +4 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Effects of high energy photon emissions in laser generated ultra-relativistic plasmas: real-time synchrotron simulations [PDF]

, 2015
We model the emission of high energy photons due to relativistic charged particle motion in intense laser-plasma interactions. This is done within a particle-in-cell code, for which high frequency radiation normally cannot be resolved due to finite time ...
Arkady Gonoskov, Birdsall C. K., Boris J. P., Erik Wallin, Mattias Marklund   +4 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Scaling limits of spatial compartment models for chemical reaction networks

, 2015
We study the effects of fast spatial movement of molecules on the dynamics of chemical species in a spatially heterogeneous chemical reaction network using a compartment model. The reaction networks we consider are either single- or multi-scale.
Pfaffelhuber, Peter, Popovic, Lea
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Computational models of the Posner simple and choice reaction time tasks

Frontiers in Computational Neuroscience, 2015
The landmark experiments by Posner in the late 1970s have shown thatreaction time (RT) is faster when the stimulus appears in an expectedlocation, as indicated by a cue; since then, the so-called Posnertask has been considered a ``gold standard'' test of
Carolina eFeher Da Silva, Marcus V C Baldo   +1 more
doaj   +1 more source