We demonstrate molecular control of nanoscale composition, alloying, and morphology (aspect ratio) in CdS-CdSe nanocrystal dots and rods by modulating the chemical reactivity of phosphine-chalcogenide precursors. Specific molecular precursors studied were sulfides and selenides of triphenylphosphite (TPP), diphenylpropylphosphine (DPP), tributylphosphine (TBP), trioctylphosphine (TOP), and hexa...

BACKGROUND & OBJECTIVES Patients of orthostatic hypotension may or may not have symptoms of the cerebral hypoperfusion despite fall in the blood pressure. The present study was done to quantify autonomic functions and cerebral autoregulation in patients of orthostatic hypotension with or without symptoms. METHODS The study was conducted in 15 patients of orthostatic hypotension and 15 age, se...

BACKGROUND No data exist about the impact of high residual platelet reactivity (HRPR) after clopidogrel loading on long-term clinical outcome in patients undergoing drug-eluting stent (DES) implantation for unprotected left main disease (ULMD). METHODS AND RESULTS Consecutive patients who underwent percutaneous coronary intervention for ULMD had prospective platelet reactivity assessment by l...

BACKGROUND AND PURPOSE Exaggerated blood pressure reactivity to stress is associated with atherosclerosis and hypertension, which are known stroke risk factors, but its relation to stroke is unknown. Previous work also indicates that the association between reactivity and cardiovascular diseases may be influenced by socioeconomic status. METHODS The impact of blood pressure reactivity and soc...

beta-lactams are a group of antibiotics with a broad spectrum of both gram-negative and gram-positive coverage. the goal of this study is to evaluate the results from studies regarding ig-e mediated hypersensitivity to penicillin and cross-reactivity with other beta-lactams. review was conducted of both retrospective and prospective studies by searching in pubmed and medline for the original an...

Alkali–silica reactions were set off in cementitious mortars different curing conditions, simulating short-term tests on reactivity. The investigated composites differed some of their microstructural features. total open porosity was modulated by changing the water/cement ratio and also adding an air-entraining additive. By keeping mortars’ as only variable, effect measured expansion evaluated....

The obtained quality data of coal gasification slag fine aggregate (CGS) produced by the integrated combined cycle (IGCC) and its characteristics are summarized. effects CGS on mechanical properties such as compressive strength concrete were investigated. From these results, it was considered that is expected to have pozzolanic reactivity because had almost amorphous has a chemical composition ...

Testosterone (T) concentrations change rapidly in the context of human competition, and these changes in neuroendocrine function may serve to modulate future aggressive behavior. However, an increase in T during competition does not translate into aggressive behavior among all individuals. Here, we examined the extent to which individual differences in trait anxiety moderate the relationship be...