We investigate the sensitivity of total cross sections of e + p → W,Z to CP-conserving non-standard WWγ couplings. We include all the important production mechanisms and study the dependence of the total W cross sections on the anomalous WWγ couplings, κ and λ. We argue that the ratio of W and Z production cross sections is particularly well suited, being relatively insensitive to uncertainties...

An interactive computer procedure is described which determines (1)H--(1)H couplings from fitting the cross-peak multiplets in regular phase-sensitive COSY spectra. The robustness and simplicity of the method rely on the fact that a given cross-peak intensity is not an independent variable in the fitting procedure, making it possible to measure couplings accurately even from individual cross pe...

Owing to their versatile (opto)electronic properties, conjugated polymers have found application in several organic electronic devices. Cross-coupling reactions such as Stille, Suzuki, Kumada couplings, and direct arylation proved be effective for synthesis. More atom-efficient oxidative polymerization has also been reported making homopolymers. However, growing interest toward donor-acceptor l...

Carbon−carbon bond formation by dual Iridium-Nickel photoredox catalysis has gained a lot of attention for late-stage cross-couplings alkyls with aryls. However, the scalability such reactions is greatly impeded poor light penetration depth into strongly absorbing reaction media. Wireless internal illumination novel technique which circumvents issue efficiently and therefore allows to scale pho...

a-10-year-old girl was referred to our department for multiple hyperpigmented plaques. one  week  previously,  she  had  been  given  one  suppository  of  acetylsalicylic acid  – phenobarbital for fever. twelve hours after the drug intake the child developed pruritic red plaques on the left thigh. six weeks after resolution of the acute reaction, patch tests were performed separately, with phe...

background: caprine besnoitiosis is an economically important disease of goats. neospora caninum, another coccidian parasite of worldwide distribution, infects several animal species and is a major cause of abortion in cattle . combined infections of n. caninum and besnoitia caprae can occur in geo-graphical areas endemic for both species of parasite in goats. this experiment was conducted to i...

To reduce the size of this section's PostScript le, we have divided it into three PostScript les. We present the following index: PART 1 25 Average particle multiplicities in hadronic Z decay 28 Hadronic pole cross section 28 Vector couplings to charged leptons 30 Axial-vector couplings to charged leptons 31 Couplings to neutral leptons 31 Asymmetry parameters 32 Charge asymmetry 37 References

The first asymmetric Kumada reactions of alkyl electrophiles are described, specifically, cross-couplings of racemic alpha-bromoketones with aryl Grignard reagents. Several features of this investigation are of interest. First, the couplings proceed at remarkably low temperature (-40 or -60 degrees C), which enables the asymmetric synthesis of racemization-prone alpha-arylketones. Second, dialk...

In the current study, amorphous silica nanoparticles were easily extracted from rice husk ash. The target composite was synthesized by the direct incorporation of chloropropyl groups through the condensation of nanosilica and 3-chloropropyl trimethoxysilane and then grafting of 1,3,5-triazine-2,4,6-triamine (Melamine) onto the propyl groups by the simple nucleophilic substitution reaction (RHA@...

In this paper, we systematically study the contribution of the TC2 model to the single t-quark production at the LHC. The TC2 model can contribute to the cross section of the single t-quark production in two different ways. First, the existence of the top-pions and top-higgs can modify the Wtb coupling via their loop contribution, and such modification can cause the correction to the cross sect...