a Department of Earth, Environmental, and Planetary Sciences, Brown University, 324 Brook St, Box 1846, Providence, RI 02912, USA b Department of Geography, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B 2E9, Canada c Department of Geological Sciences, Indiana University, 1001 East 10th Street, Bloomington, IN 47405-1405, USA d Department of Physics, University of Winnipeg,...

A microsome-mediated mutagenesis system has been es tablished with the V79 Chinese hamster cell line. The cells, grown in monolayer, were treated with various nitnosamines in the presence of a postmitochondnial fraction (515) from rat liven and a reduced nicotinamide adenine dinucleotide generating system for 1 hn, washed and incubated for 2 to 3 hr in fresh culture medium, and then plated for ...

INTRODUCTION Green, black and pu-erh teas are known to have strong antiradical properties in comparison to other plant raw materials. In this study fifteen different teas belonging to three types, green, black, and pu-erh tea (five of each kind), were investigated for their antiradical properties. Antiradical activity of extracts and raw materials was measured using DPPH and ABTS(•+) radicals. ...

Abstract Introduction Documentation is an important part of healthcare practitioners’ daily routine. The importance documentation well stress in the literature and by GMC's good medical practice. Good ensures patients receive best possible clinical care. Recently, Royal College Surgeons (RCS) published guidance aiming to improve reported poor quality operative documentation. Method RCS notes gu...

In intact (type A) chloroplasts isolated from mesophyll protoplasts of maize (Zea mays L. convar. KSC 360) the flash-induced 515 nanometer absorbance change was much higher than in conventionally prepared (types B and C) chloroplasts. The 515 nanometer signal of type A chloroplasts exhibited a biphasic rise: the initial very fast rise (rise time <<1 millisecond) was followed by a slow increase ...

This paper investigates the incentives to commit price or retain price flexibility in a model in which exporting firms face different degrees of exchange rate uncertainty. The result shows that introducing exchange rate uncertainty can lead to the endogenous emergence of an unique leader-follower equilibrium; which firm emerges as price leader depends on the substitutability of products, the ma...

way inflammation associated with the accumulation and activation of inflammatory cells, such as eosinophils, in the bronchial wall and airway lumen. Eosinophils at the site of inflammation release preformed and newly synthesized mediators, including eosinophil cationic protein, major basic protein, leukotriene C4, and reactive oxygen. These mediators contribute to the formation of the pathologi...