Rare earth (RE) borohydrides have received considerable attention during the past ten years as possible hydrogen storage materials due to their relatively high gravimetric hydrogen density. This review illustrates the rich chemistry, structural diversity and thermal properties of borohydrides containing RE elements. In addition, it highlights the decomposition and rehydrogenation properties of ...

Shigenobu Ogata,1,3,4,5 Ju Li,6 and Sidney Yip1,2,* 1Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 2Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 3Handai Frontier Research Center, Osaka University, Osaka 565-0871, Japan 4Center for Atomic and ...

As feature sizes continue their frantic descent into the sub-0.6 pm region, wafer cleaning is on its way toward becoming a true enabling technology. Ridding wafers of the i r process chemicals is one of the most common steps in fabrication. It’s also, often a dirty one, in terms of picking up contaminants. The heavy metals, alkali metals and light elements, all common to wafer processing, also ...

Vertical and temporal variations of acid-volatile sulfides (AVS) and simultaneously extracted metals (SEM) in sediment can control biological impacts of metals. To assess the significance of these variations in field sediments, sediments spiked with cadmium, copper, lead, nickel, and zinc were deployed in Narragansett Bay for four months and recolonization by benthic organisms investigated. In ...

The aim of this work was to study the viability of recycling the residual yeast and diatomaceous earth (RYDE) slurry generated by the beer brewing industry by composting with animal manures, as well as to evaluate the quality of the composts obtained. Two pilot composting trials were carried out with different mixes: cow manure/RYDE slurry (Pile CM) and sheep manure/RYDE slurry (Pile SM). For a...

Epidemiological study of the dental health status among population at the age of 35-44, living in the territories polluted with heavy metals salts of low intensity, was conducted. It was established that these people have higher prevalence of parodontal pathologies, dentofacial anomalies and dental retentions. Caries intensity and number of non-erupted teeth is higher.

This review presents the justification of research into heavy metals and clean-up technologies with particular emphasis on phytoremediation of heavy metals contaminated soils. The generating sectors and heavy metal contaminant contributors are reviewed alongside likely types. The new paradigm by researchers in response to negative impacts of various clean-up methodologies has been discussed. Th...

This paper is one of three synthesis documents produced via an integrated assessment (IA) that aims to increase understanding of artisanal and small-scale gold mining (ASGM) in Ghana. Given the complexities surrounding ASGM, an integrated assessment (IA) framework was utilized to analyze socio-economic, health, and environmental data, and co-develop evidence-based responses with stakeholders. T...

Duke University Marine Laboratory, Nichols School of the Environment and Earth Sciences, 135 Duke Marine Lab Road, Beaufort, NC 28516, USA; San Diego State University, Biology Department, 5500 Campanile Drive, San Diego, CA 92182-4614, USA *Present address: Murdoch University, Division of Biological Sciences and Biotechnology, Centre for Fish and Fisheries Research, South Street, Murdoch, WA615...