Single pion transitions of S wave to S wave, P wave to S wave and P wave to P wave heavy baryons are analyzed in the framework of the Heavy Quark Symmetry limit (HQS). We then use a constituent quark model picture for the light diquark system with an underlying SU(2Nf ) ⊗ O(3) symmetry to reduce the number of the HQS coupling factors required to describe these transitions. A single constituent ...

It has been shown previously (1) that submitochondrial particles exposed to sonic oscillation at an alkaline pH and then treated with 1% silicotungstate were depleted of several coupling factors (F1,l Fz, Fs, and F5) as well as succinate dehydrogenase. Succinoxidase activity in these STA-particles was negligible but could be completely restored by addition of partially purified succinate dehydr...

In understanding the dynamics of kaon-nucleon scattering or the strangeness content of the nucleon using hadronic models, it is important to know the hadronic coupling constants involving the kaons. Among them, gNKΛ and gNKΣ are the most relevant coupling constants. To determine these couplings using the QCD sum rules [1] one can follow two different approaches: a) the two-point function, where...

Previous work has shown that the respiratory control or coupling exhibited by reconstituted cytochrome oxidase systems can be markedly sensitive to the lipid composition, the lipid to protein ratio, and the vesicle size. In this work we have attempted to ascertain which, if any, of these factors plays a definitive role in determining the observed coupling. Vesicles prepared from dioleoylphospha...

on the source of plasma density and electric field perturbations in pmse and pmwe regionspolar mesospheric summer/winter echoes (pmse/pmwe) are very strong radar echoes produced by ionospheric electron density fluctuations at half the radar wavelength. the main focus of this paper is the altitude range 80 to 90 km in summer and altitude range 65-86 km in winter in the polar mesosphere . this pa...

Presented is a discussion of several is sues raised during the workshop sponsored by the American Association for Artificial Intelligence on Coupling Symbolic and Numeric Computing in Expert Systems, which was held on 27 to 29 August 1985 in Seattle, Washington. Issues include the definition of coupled systems, motivations for coupling, coupled system architectures, and key factors in the desig...

An one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of Bi(NO3)3. 5H2O. Short reaction times, high yields, a clean process, simple methodology, easy work-up and green ‎conditions are advantages of this protocol.‎

The objective of this study was to determine the effects of grasp conditions (types of grasp, grasp width, glove and types of coupling) on maximal pushing force (MPF) and required pinch force (RPF) during snap fit assembly. The results indicated that the type of grasp, the type of coupling and wearing gloves have significant (p

1. In skeletal muscle, excitation-contraction (E-C) coupling describes a cascade of cellular events initiated by an action potential (AP) at the surface membrane that ultimately results in muscle contraction. Being able to specifically manipulate the many processes that constitute E-C coupling, as well as the many factors that modulate these processes, has proven challenging. 2. One of the simp...

We make a complete pole analysis of the reflection factors of the boundary scaling Lee-Yang model. In the process we uncover a number of previously unremarked mechanisms for the generation of simple poles in boundary reflection factors, which have implications for attempts to close the boundary bootstrap in more general models. We also explain how different boundary conditions can sometimes sha...