A simple and reliable electrochemical sensor based on cobalt oxide nanoparticles modified glassy carbon electrode (GCE/CoOxNPs) for determination of butylated hydroxyanisole is presented here. The nanoparticles were fabricated by electrodepositing method. The modified electrode shows excellent catalytic activity toward butylated hydroxyanisole oxidation in pH 12.0 phosphate buffer solution (PBS...

It has recently been proposed that gravity-localized compactifications can generate the required gauge hierarchy without the need for hierarchically large extra spacetime dimensions. In this paper, we show that gauge coupling unification arises naturally in such scenarios as a result of the anomaly induced by the rescaling of the wavefunctions of the brane fields. Thus, “anomalyinduced” gauge c...

In order to gain insight into the structure of quantum field theory, one often couples relevant composite operators to external fields such that functional differentiation w.r.t. these fields yields Green functions of the respective operator. A particular variant of this method consists in replacing the coupling constant by a local coupling field. The corresponding composite operator is the loc...

In warped supersymmetric grand unification, XY gauge particles appear near the TeV scale along with Kaluza-Klein towers of the standard model gauge fields. In spite of this exotic low-energy physics, MSSM gauge coupling unification is preserved and proton decay is naturally suppressed. In this paper we study in detail the low-lying mass spectrum of superparticles and GUT particles in this theor...

Allenes, Proton-Proton Coupling Constants, Substituent Effects Four-bond proton-proton coupling constants in allenes are reported. The substituent effects on the coupling constants are discussed on the basis of the dual-substituent parameter approach. Furthermore, the coupling constants are related to quantumchemical indices (electron densities, overlap populations) obtained from semiempirical ...

Power-like loop corrections to gauge couplings are a generic feature of higher-dimensional field theories. In supersymmetric grand unified theories in d = 5 dimensions, such corrections arise only in the presence of a vacuum expectation value of the adjoint scalar of the gauge multiplet. We show that, using the analysis of the exact quantum effective action by Intriligator, Morrison and Seiberg...

X-ray diffraction topography provides a simple, fast, and direct technique for imaging crystal disorder. In conventional single-crystal diffraction (e.g., as performed by macromolecular crystallographers), the sample is illuminated using a beam with a finite angular divergence and the diffraction pattern is recorded using a detector placed ~0.11.0 m from the sample. Under these conditions, the ...

It is well known that in single step breaking of R-parity conserving SUSY SO(10) that needs the Higgs representations 126 ⊕ 126 the GUT-gauge coupling violates perturbative constraint at mass scales few times larger than the GUT scale. Therefore, if the SO(10) gauge coupling is to remain perturbative up to the Planck scale(≡ 2× 10 GeV), the scale MU of the GUT symmetry breaking is to be bounded...

A generic, heterotic string theory is uniquely reduced to the standard model in terms of a geometry that transcends compactification. This device also extends the standard model to embrace three generations of fermions, including a left-handed strange quark that is devoid of strangeness and three right-handed neutrinos. Finally, the proposed hypothesis indicates supergravitationally mediated qu...