The protonation constants of glycine, L-alanine, glycyl-glycine, glycyl-glycyl-glycine and glycyl-L-alanine have been determined in 10-80% (v/v) ethanol-water mixtures at 25 °C and constant ionic strength (0.1 mol L-1 sodium perchlorate), by potentiometric technique and calculated using a suitable computer program, which employs a nonlinear least-squares method. The effect of solvent compositio...

A quantitative study of the variation of the conformational equilibria of 7-benzyl-2-iodo-9-oxa-7-azabicyclo[4.3.0]nonan-8-one 1 in 10 solvents has been carried out. The experimental composition in each solvent has been obtained from experimental NMR vicinal H-H coupling constants together with molecular modeling. The solvent properties, particularly polarity and hydrogen bonding ability, were ...

Three lexical decision experiments tested the claim by M. Taft (Journal of Verbal Learning and Verbal Behavior 1979, 18, 21-39) that lexical access is based on a word's Basic Orthographic Syllabic Structure (BOSS). Experiment 1 failed to replicate Taft's finding that lexical decisions were faster to monomorphemic words split at their BOSS boundary than those split at their Vocalic Center Group ...

This study, using National Labor Relations Board data and American Hospital Association data, reports on the status of union election activity in the hospital industry for a 65-month period, January 1980-May 1985, and contrasts it with earlier data for a similar 65-month time period (1974-79). Together these data provide a comprehensive overview of union election activity in non-Federal, nongov...

Abstract Wax by-products from commercial Cannabis processing, containing between 41 and 46% (w/w) cannabinoids, are currently underutilized due to lack of research done, significant value can be added through recovery the cannabinoids. The cannabinoids aimed recovered via a novel solvent-assisted recrystallization technology, this study provides robust solvent screening methodology for technolo...

This article addresses a new initiative of the Health Care Financing Administration (HCFA) to contract on a group basis with: employer self-insurance plans, unions, group health insurance companies, and Taft-Hartley Health and Welfare Funds for groups of Medicare beneficiaries. under this new concept, Medicare beneficiaries may elect in the future to obtain Medicare coverage through their group...

Four models of halogen bonds were used to quantify this bond using the DFT B97D/6-311+G(d) computational level: para-substituted iodobenzenes, paraand meta-substituted bromobenzenes complexed with three simple Lewis bases (NH3, NCH and CNH), 1-bromo-4-substituted-bicyclo[2.2.2]octanes with NH3 and 3and 4-substituted pyridines complexed with BrCl and BrF. In addition, the combination of the para...

PARTICULARLY since the advent of cardiac catheterization, primary pulmonary hypertension has been of increasing interest to clinicians and pathologists alike. To some it represents a pulmonary vasospastic disease, presumably of neurohumoral type, analogous to systemic essential hypertension. The occasional association of primary pulmonary hypertension with Raynaud's disease is thought to suppor...

Let Uq(sl2) be the quantized enveloping algebra associated to the simple Lie algebra sl2. In this paper, we study the quantum double Dq of the Borel subalgebra Uq((sl2) ) of Uq(sl2). We construct an analogue of Kostant–Lusztig Z[v, v]-form for Dq and show that it is a Hopf subalgebra. We prove that, over an algebraically closed field, every simple Dq-module is the pullback of a simple Uq(sl2)-m...

What is the relationship between corporate philanthropy and corporate financial performance? Some scholars argue that corporate philanthropy facilitates stakeholder cooperation and helps secure access to critical resources controlled by those stakeholders, suggesting that corporate philanthropy should be positively associated with corporate financial performance. In contrast, other scholars tak...