Efficient electron transfer and conversion of L-arginine to L-citrulline and nitric oxide (NO•) by neuronal nitric oxide synthase (nNOS) requires calmodulin (CaM) binding. The present study focused on electron transfer ability of resting state CaM-free nNOS in presence of dinitrobenzene isomers (DNBs). NADPH oxidation (NADPH ox ) and acetylated cytochrome-c reduction (AcCyt-cred ) catalyzed by ...

The use of mutagens in plant breeding is used to create new germplasm, increase agricultural yield, quality, and resistance diseases pests. Mutagens are physical or chemical factors that can alter the DNA RNA structure an organism, causing mutations above expected level. One most common potent EMS (ethyl-methane sulfonate), which produces point plants, but a lesser degree also cause loss deleti...

abstractbackground: 226 ra and 228 ra contents in foodstuffs of ramsar which is a coastal city in the northern part of iran were determined by gamma spectrometry. measurement results together with food consumption rates were used to estimate annual effective dose from  226 ra and 228 ra, due to consumption of food stuffs by inhabitants of ramsar city.materials and methods: a total of 33 samples...

This article proposes to study the first 12 years of the Minas Gerais Radium Institute, founded in 1922. Its work in the fight against cancer in Brazil, albeit still little known, is coming to light as its institutional documents are studied. A database has been prepared using information from its patient register, based on which statistical analyses have been done to identify the types of canc...

We evaluated the antimicrobial activities of a cationic Gemini surfactant, trans-1,4-bis[2-(alkanoyloxy)ethyldimethylammonio]-2-butene dichloride [II-m-2(t-butene)] and its derivatives against Gram-positive and Gram-negative microorganisms. The II-m-2(t-butene) compound was previously shown to have good surface activity and biodegradability. A dodecanoyloxy derivative (m = 12) of II-m-2(t-buten...

While estimated losses from disasters are notoriously poor with many real costs hidden or uncounted, it is clear that the global toll from disasters is extremely high. Noji for instance, estimated global losses to be $23 billion per annum, (17) while CRED put the cost of natural catastrophes between 1991 and 2000 at US$78.7 billion per year (2000 base-levels). (3) However, these figures usually...