Results 1 to 10 of about 5,388,952 (345)

NLL Corrections for B-Meson Radiative Exclusive Decays [PDF]

open access: yes, 1999
We calculate the next-to-leading corrections to the branching ratio of exclusive $B\to K^* \gamma$ decay. The renormalization scale dependence is reduced compared to the leading logarithmic result but there remains a dependence on a cutoff parameter of ...
Adel   +19 more
core   +3 more sources

Problem of prescribing anticoagulant therapy in patients with atrial fibrillation on the regional level

open access: yesМедицинский совет, 2020
Introduction. Cardiovascular diseases are the leading cause of morbidity and mortality worldwide, with heart rhythm disorders accounting for a significant proportion of them.
M. G. Nazarkina   +2 more
doaj   +1 more source

Unraveling unparticles through violation of atomic parity and rare beauty [PDF]

open access: yes, 2007
We put constraints on unparticle physics, specifically on the scale $\Lambda_\U$ and the scale dimension $d_\U$ of unparticle operators, using (i) measurements of atomic parity violation as well as (ii) branching ratio and CP asymmetry measurements in ...
Ali   +64 more
core   +2 more sources

New Hyperspectral Geometry Ratio Index for Monitoring Rice Blast Disease from Leaf Scale to Canopy Scale

open access: yesRemote Sensing
Rice blast is a highly damaging disease that greatly impacts both the quality and yield of rice. Timely identification and monitoring of this disease are essential for effective agricultural management and for ensuring optimal crop performance.
Qiong Zheng   +10 more
doaj   +1 more source

The Cosmic Mach Number: Comparison from Observations, Numerical Simulations and Nonlinear Predictions [PDF]

open access: yes, 2013
We calculate the cosmic Mach number M - the ratio of the bulk flow of the velocity field on scale R to the velocity dispersion within regions of scale R. M is effectively a measure of the ratio of large-scale to small-scale power and can be a useful tool
Agarwal, Shankar, Feldman, Hume A.
core   +2 more sources

The economic viability of commercial-scale hydroponics: Nigeria as a case study

open access: yesHeliyon, 2023
The use of hydroponics to cultivate economic crops is an emerging agricultural practice in Nigeria. There is, however, a paucity of information on the economic viability and valuation of the production systems.
Ewumi Azeez Folorunso   +3 more
doaj   +1 more source

Using Spectral Radius Ratio for Node Degree to Analyze the Evolution of Scale Free Networks and Small World Networks

open access: yes, 2015
In this paper, we show the evaluation of the spectral radius for node degree as the basis to analyze the variation in the node degrees during the evolution of scale-free networks and small-world networks.
Meghanathan, Natarajan
core   +1 more source

Conformal Symmetry as a Template: Commensurate Scale Relations and Physics Renormalization Schemes [PDF]

open access: yes, 1999
Commensurate scale relations are perturbative QCD predictions which relate observable to observable at fixed relative scale, such as the "generalized Crewther relation", which connects the Bjorken and Gross-Llewellyn Smith deep inelastic scattering sum ...
Brodsky, Stanley J., Rathsman, Johan
core   +3 more sources

AESTHETIC RATIOS OF FLIGHT - HOW OBSERVER EXPERTISE AND AESTHETIC PERCEPTION ARE RELATED TO WEBSTER FREERUNNING SKILL FLIGHT KINEMATICS

open access: yesScience of Gymnastics Journal, 2022
The perception of (motion) aesthetics is related to the circumstances of the object, the observer, and the given context. The central question of this study is whether the perception of motion aesthetics is related to a motor skill’s ratio of flight ...
Pia M. Vinken   +2 more
doaj   +1 more source

GUT-scale inflation with sizeable tensor modes

open access: yes, 2014
A sizeable tensor-to-scalar ratio, such as recently claimed by BICEP2, would imply a scale of inflation at the typical scale of supersymmetric grand unification. This could be an accident, or strong support for supersymmetric theories.
Brummer, Felix   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy