Results 51 to 60 of about 1,095,895 (290)

Universal rate constants for reactive collisions of ultracold molecules

, 2010
A simple quantum defect model gives analytic expressions for the complex scattering length and threshold collision rates of ultracold molecules. If the probability of reaction in the short-range part of the collision is high, the model gives universal ...
Idziaszek, Zbigniew, Julienne, Paul S.
core   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Gas Phase Oxidation of Carbon Monoxide by Sulfur Dioxide Radical Cation: Reaction Dynamics and Kinetic Trend With the Temperature

Frontiers in Chemistry, 2019
Gas phase ion chemistry has fundamental and applicative purposes since it allows the study of the chemical processes in a solvent free environment and represents models for reactions occurring in the space at low and high temperatures.
Daniele Catone, Mauro Satta, Antonella Cartoni, Antonella Cartoni, Mattea C. Castrovilli, Paola Bolognesi, Stefano Turchini, Lorenzo Avaldi   +7 more
doaj   +1 more source

Semiclassical instanton approach to calculation of reaction rate constants in multidimensional chemical systems [PDF]

, 2011
The semiclassical instanton approximation is revisited in the context of its application to the calculation of chemical reaction rate constants. An analytical expression for the quantum canonical reaction rate constants of multidimensional systems is ...
Kryvohuz, Maksym
core  

Origins of concentration dependence of waiting times for single-molecule fluorescence binding

, 2012
Binary fluorescence time series obtained from single-molecule imaging experiments can be used to infer protein binding kinetics, in particular, association and dissociation rate constants from waiting time statistics of fluorescence intensity changes. In
Pearson, John E., Yang, Jin
core   +1 more source

Spontaneous radiation of a finite-size dipole emitter in hyperbolic media [PDF]

, 2011
We study the radiative decay rate and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the longitudinal and transverse dielectric ...
A. Kavokin, Alexander N. Poddubny, E. L. Ivchenko, G. W. Milton, L. Banyai, L. Felsen, M. M. Glazov, M. Ya. Azbel, M. Ya. Azbel, Pavel A. Belov, Yuri S. Kivshar   +10 more
core   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Thermokinetic study on the inactivation reactions of 1-methylphthalazinium ylids [PDF]

Journal of the Serbian Chemical Society, 2003
The present paper consists in a thermokinetic study on the dimerization reactions of 1-methylphthalazinium ylids with –NO2 (ylid 1) and, respectively, –O–CH3 (ylid 2) substituents in the p position of the benzoyl radical bound to the ylidic carbanion ...
MAGDA PETROVANU, M. DUMITRAÔ, ÔT. DIMA, LUCIA ODOCHIAN, MARIA CAPROÔU   +4 more
doaj  

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

Kinetic Concepts for Measuring Microbial Rate Constants: Effects of Nutrients on Rate Constants [PDF]

Applied and Environmental Microbiology, 1986
We investigated the effect of preincubation of environmental waters amended with inorganic nutrients (nitrogen, phosphorus, and traces of iron and magnesium) on the kinetics of the microbial transformation of phenol, propanil, propyl ester of (2,4-dichlorophenoxy)acetic acid, methyl parathion, Ronnel, and methoxychlor in pond and river waters.
D F, Paris, J E, Rogers
openaire   +2 more sources