The sulfone derivatives of 1,2-bis(2-alkyl-6-phenyl-1-benzothiophen-3-yl)perfluorocyclopentene having various short alkyl chain substituents at reactive carbons were prepared and the effect of alkyl substitution on the fluorescence property of the closed-ring isomers was studied. Upon irradiation with ultraviolet (UV) light the derivatives exhibit a brilliant green fluorescence under irradiatio...

Antioxidants are used in a wide variety of food products, and their activity may vary depending on the temperature, food composition, food structure and availability of oxygen. Temperatures at which antioxidant activity may be required range from 180–200°C for frying oils, to about 5 °C for products such as margarine or mayonnaise that are stored in the fridge. Besides the processing and storag...

Xanthohumol (XN) is the major prenylated flavonoid of the female inflorescences (cones) of the hop plant (Humulus lupulus). It is also a constituent of beer, the major dietary source of prenylated flavonoids. Recent studies have suggested that XN may have potential cancer-chemopreventive activity, but little is known about its metabolism. We investigated the biotransformation of XN by rat liver...

Polar ether lipids extracted from 15 methanogenic bacteria, representative of seven genera, were screened by nuclear magnetic resonance and thin layer chromatography for the presence of hydroxyl groups on the C20-phytanyl moieties. Major amounts of hydroxydiether core lipid were confirmed for Methanosaeta concilii and discovered in two Methanosarcina species, Methanococcus voltae, and tentative...

Some sharp trapezoid and midpoint type inequalities for Lipschitzian bifunctions defined on a closed disk in Euclidean sense are obtained by the use of polar coordinates. Also, whose partial derivative is considered. A new presentation Hermite-Hadamard inequality convex function its reverse given. Furthermore, two mappings H <mf...

An anthrapyrazole derivative STK663786 has been identified as a selective ligand of the socalled 430-cavity influenza virus neuraminidase at virtual screening library low-molecularweight compounds. It is able to form favorable contacts with hydrophobic residues well cationπ interaction and hydrogen bonds polar Arg371 residue. The experimentally determined EC₅₀ values have found be 19 30 µM for ...

Fluctuations of the dipole moment of a macroscopic dielectric sample are induced by thermal motions. The variance of the sample dipole moment, characterizing the extent of thermal fluctuations, is a decaying function of temperature for many polar liquids. This result is inconsistent with the Nyquist (fluctuation-dissipation) theorem predicting the variance of a macroscopic property to grow line...

It has been suggested that central nervous system (CNS) neuroexcitation plays an important role in digitalis-induced cardiac arrhythmias. To elucidate further the role of the CNS in digitalis-induced arrhythmias, the inotropic and toxic effects of a highly polar semisynthetic cardiac glycoside, 3beta-O-(4 amino-4,6 dideoxy-beta-D-galactopyranosyl)-digitoxigenin (ASI-222) were compared to those ...

in this article, we survey the asymptotic stability analysis of fractional differential systems with the prabhakar fractional derivatives. we present the stability regions for these types of fractional differential systems. a brief comparison with the stability aspects of fractional differential systems in the sense of riemann-liouville fractional derivatives is also given.

Novel derivative of isoniazid containing 1,3,4-oxadiazole pharmacophore has been synthesized. The chemical structure the compound was characterized and confirmed by using FT-IR 1H-NMR spectroscopy.&#x0D; &#x0D; desired tested against gram-positive gram-negative bacteria agar well-diffusion technique for their ability as antibacterial agent showed good activity bacteria. In addition, ADME evalua...