The objective of this study was to evaluate the free radical scavenging potential and high performance thin layer chromatography (HPTLC) fingerprinting of Indigofera tinctoria (I. tinctoria). Phytochemical analysis was carried out using standard methods, and free radical scavenging activity of the plant was determined using 2,2-diphenyl-1-picrylhydrazy (DPPH), nitric oxide (NO) and superoxide a...

Two-dimensional arrays consisting of strongly subspectral molecular graphs and formula periodic tables for polycyclic aromatic hydrocarbons are briefly reviewed. New two-dimensional arrays for free-radical benzenoid hydrocarbons are presented with general analytical expressions for counting their number of resonance structures (SC). The structural origin of the coefficients to these analytical ...

Second-order rate constants of the direct ozone reactions [formula: see text] and the indirect OH radical reactions [formula: see text] for nine chemicals on the US EPA's Drinking Water Contaminant Candidate List (CCL) were studied during the ozonation and ozone/hydrogen peroxide advanced oxidation process (O(3)/H(2)O(2) AOP) using batch reactors. Except for the thiocarbamate herbicides (molina...

qct calculations were performed to study the behavior of energized nh2oh formed by association collision of nh2 radical with oh radical. a potential energy surface that describes the behavior of the title reaction has been constructed by interpolation of ab initio data. h2o, hon, hno, nh3, o, h2no, cis or trans-honh, and h products and two vibrationally energized nh2oh and nh3o adducts were obs...

Two polyene macrolide, trichomycins A and B, were compared by physico-chemical and microbiological methods. The two antibiotics were found to have the same molecular formula, C58H84N2O18 (MW 1,096), by elemental analysis and FAB-MS. However, 1H and 13C NMR spectrometry studies indicated that the hydroxyl at C-5 of trichomycin A located on C-9 in trichomycin B. Trichomycin B possessed lower acti...

Purpose: We compared renal function outcomes in patients undergoing open or laparoscopic radical nephrectomy. Materials and Methods: Seventy-one patients undergoing open or laparoscopic radical nephrectomy for kidney disease with a normal contralateral kidney were identified between January 2004 and December 2007. Renal function was calculated by using the Cockcroft-Gault formula. Serial renal ...

Isoprene epoxydiols (IEPOX) are formed in high yield as second-generation products of atmospheric isoprene oxidation in pristine (low-NO) environments. IEPOX has received significant attention for its ability to form secondary organic aerosol, but the fate of IEPOX in the gas phase, and those of its oxidation products, remains largely unexplored. In this study, three dihydroxycarbonyl compounds...

An explicit formula for the most general root of a solvable polynomial of prime degree is stated and proved. Such a root can be expressed rationally in terms of a single compound radical determined by the roots of a cyclic polynomial whose degree divides μ − 1, where μ is the prime. The study of such formulas was initiated by a formula of Abel for roots of quintic polynomials that are solvable,...

This paper is devoted to irreducible radical field extensions, i.e., extensions that can be obtained by adjunction of roots binomials. We find a criterion for cyclotomic radical. developes the Gauss–Wantzel theorem about constructible polygons. also prove any normal solvable extension some K until has all unity. generalizes Abel’s theorem, which fills gap in uncomplete Ruffini proof impossibili...