Water resources management has several challenges such as water stress, droughts, human contamination, increasing population, and natural calamities. Therefore, effective strategic planning

different species of aphids in rapeseed fields of khuzestan province were identified and the dominant ones were determined during 2002-2004 field sampling. base upon the collected data, population fluctuations of rapeseed aphids vs. their natural enemies were assessed. also biology of the aphids, major species was studied under controlled conditions. the results showed that lipaphis erysimi (ka...

We re-examine Shlyakhter’s effort to constrain the time-variability of the coupling constants of the fundamental interactions by studying the anomalous isotopic abundance of Sm observed at the remnants of the natural reactors which were in operation at Oklo about 2 billion years ago. We rely on new samples that were carefully collected to minimize natural contamination and also on a careful tem...

Lead (PB, latin name plumbum) is a heavy metal commonly found in nature. In the environment it is not biodegradable nor does it undergo dissociation. It can accumulate in the tissues of living organisms. Throughout the years the attitude towards lead has changed. Once widely used, currently considered a big threat to the health ofa human. The development of civilization and associated with it a...

Heparin is unique as one of the oldest drugs currently still in widespread clinical use as an anticoagulant, a natural product, one of the first biopolymeric drugs, and one of the few carbohydrate drugs. Recently, certain batches of heparin have been associated with anaphylactoid-type reactions, some leading to hypotension and death. These reactions were traced to contamination with a semi-synt...

The uncontrolled release of the industrial solvent methylene chloride, also known as dichloromethane (DCM), has resulted in widespread groundwater contamination in the United States. Here we investigate the role of groundwater bacterial communities in the natural attenuation of DCM at an undisclosed manufacturing site in New Jersey. This study investigates the bacterial community structure of g...

Contamination of food by bacterial pathogens is one the biggest concerns in industry as it can result serious human illnesses and death. Approaches to eliminate bacteria from outer surfaces products would be an effective way safeguard against contamination. Nanopillars found on natural have been shown mechanically damage cell membranes foodborne bacteria. Therefore, fabricating bio-inspired mec...

Mycotoxins are unavoidable contaminants of food grains, feeds, medicinal herbs, and spices, posing as health threat to animals and humans. The objective of this study was to screen medicinal herbs and spices for fungi and mycotoxin contamination and evaluate their safety. Sixty-three samples were examined for fungal contamination and fungal load determined using standard microbiological method....

The environmental route of transmission is important for many protozoan and helminth parasites, with water, soil and food being particularly significant. Both the potential for producing large numbers of transmissive stages and their environmental robustness, being able to survive in moist microclimates for prolonged periods of time, pose a persistent threat to public and veterinary health. The...

BACKGROUND Many patients suffer from recurrent Staphylococcus aureus infections, but there are few data examining recurrence predictors. METHODS We followed adults and children after treatment for S. aureus skin infections and their household contacts in Los Angeles and Chicago. We surveyed subjects for S. aureus body colonization, household fomite contamination, and behavioral and clinical f...