نتایج جستجو برای: high and extremely hazardous areas
تعداد نتایج: 17103557 فیلتر نتایج به سال:
abstract the present study was conducted in order to investigate the impact of an integrated model of form-focused and task-based instruction on iranian efl learners vocabulary learning and retention.it also aimed to detect efl learners attitude towards the implementation of form-focused task-based vocabulary instruction in the classroom. in order to address the purposes of this study, a sampl...
BACKGROUND In the post-Soviet period, Russian working-age men have suffered unusually high mortality rates. Earlier quantitative work found that part of this is attributable to hazardous and harmful patterns of alcohol consumption, which increased in the period of transition at a time of massive social and economic disruption and uncertainty. However, there has been very little work done to doc...
Asbestos-related diseases continue to result in approximately 120,000 deaths every year in the United States and worldwide. Although extensive research has been conducted on health effects of occupational exposures to asbestos, many issues related to environmental asbestos exposures remain unresolved. For example, environmental asbestos exposures associated with a former mine in Libby, Montana,...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
Considering current controversies regarding the health effects of low doses of ionizing radiation, study of the high background radiation areas such as Ramsar, Iran can help scientists better evaluate the validity of linear no-threshold (LNT) hypothesis. Ramsar is a coastal city in northern Iran with some areas known to have the highest levels of natural background radiation in the world. The m...
Three to 4 million children and adolescents in the United States live within 1 mile of a federally designated Superfund hazardous waste disposal site and are at risk of exposure to chemical toxicants released from these sites into air, groundwater, surface water, and surrounding communities. Because of their patterns of exposure and their biological vulnerability, children are uniquely suscepti...
Engineer for John Crane Inc., in Morton Grove, Illinois. His responsibilities include recommending, designing, and troubleshooting sealing systems for the Midwest states. He spent 10 years as a Senior Design and Applications Engineer before becoming a Regional Engineer. Before John Crane, Mr. Kozlowski was a Design and Test Engineer for Aetna Bearing Company, in Chicago, where he was involved w...
The separations of alcohols with hydrophilic and hydrophobic parts, and the separation of aromatic mixtures, are extremely important processes in gas and petroleum industries. Choosing an adsorbent for performing this separation is the most important part of the process. Silica gel is used as an adsorbent is various techniques such as pressure swing adsorption (PSA) and gas and liquid chromatog...
In Germany, chemical eye burns are a common and recurring cause of long-term vision disorders and even blindness. Severe eye burns, however, have become less common thanks to sophisticated safety systems and high levels of safety standards in industrial workplaces. In contrast, extremely hazardous substances capable of causing severe eye damage are readily available on the private consumer mark...
Spontaneous uterine rupture (SUR), a public health problem in developing countries, is a rare but hazardous obstetric complication with significant maternal and fetal morbidity and mortality. Cases of rupture are more likely to occur in a scarred uterus, usually after a previous caesarean delivery. Spontaneous unscarred uterus rupture (SUUR) in primigravid women is usually unexpected and extrem...
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