نتایج جستجو برای: copper workers
تعداد نتایج: 195896 فیلتر نتایج به سال:
Land surface radiation and energy budgets are critical to address a variety of scientific and application issues related to climate trends, weather predictions, hydrologic and biogeophysical modeling, and the monitoring of ecosystem health and agricultural crops. This is an introductory paper to the special issue of land surface radiation and energy budgets from an international conference on t...
Prior Converted Croplands (PCCs) are historic wetlands that were transformed (drained, dredged, filled or leveled) to support production of agricultural crops prior to “Swampbuster” provisions of the 1985 Food Security Act. Our research suggests that PCCs can substantially reduce nitrate export from agricultural watersheds in the region, an ecosystem function shared with natural and restored we...
With this presentation, my role is to help to stir the discussion. Perhaps it will open the dialogue so that we have a sense of where we have been, where we are, and then what’s ahead. Figure shows a photograph from 986, and in Figure is a photograph taken two years later. We developed a tomato phenotype—viral coat-protein-mediated resistance to a common disease of tomato—with a technology that...
In 2001, Sharpless and co-workers defined the concept of ‘Click Chemistry’ and the criteria for a transformation to be considered as ‘Click’. Since then, the copper-catalyzed reaction of azide and alkyne to produce 1,2,3-triazoles regioselectively (1,3dipolar Huisgen cycloaddition) has become the best Click reaction to date. Thanks to its mild conditions and high efficiency, this reaction has f...
OBJECTIVES Research has consistently revealed a negative relationship between chronological age and promotion orientation, that is, the motivational orientation toward approaching possible gains. In addition, experimental research has demonstrated that activating positive self-relevant stereotypes (e.g., for men, the stereotype that men are good at math) can stimulate increases in promotion ori...
The twenty-five fold expansion of oil palm cultivation in Sarawak over the past two and a half decades constitutes the most rapid and radical transformation of the agrarian landscape ever seen in that state. From 23,000 ha in 1980, mostly in government schemes, the area planted with oil palm has increased to over 580,000 ha in 2006, mostly in private estates, closing in on an official target of...
The study was to determine the role of Dietary diversity (DD), household food security (HFS), and agricultural biodiversity (AB) on stunted growth in children. Two cross-sectional studies were undertaken 6 months apart. Interviews were done with mothers/caregivers and anthropometric measurements of children 24-59 months old. HFS was assessed by household food insecurity access scale (HFIAS). A ...
This study aimed at identifying the level of HIV-related discriminatory attitudes and related factors in a purposively-selected sample of healthcare workers (HCWs) in Bangladesh. In total, 526 HCWs from a number of hospitals and healthcare centres were interviewed using a structured questionnaire. A moderate level of discriminatory attitudes was observed. The factors associated with a high leve...
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