H2S emissions from landfill sites resulting from sulfate reduction has become a serious human health and ecological safety issue. This study investigated H2S emission behavior and sulfate metabolism occurring in simulated landfills under different operating conditions. Under aerobic conditions, great attenuation of the original sulfate content (from around 6000 mg kg-1 dropped to below 800 mg k...

It has been slightly more than 100 years since the synthesis, development, and commercialization of acetylsalicylic acid, the most widely consumed drug in the world. It is estimated that 35 000 kg are consumed daily in the United States and 6000 kg in the UK.1 Who would have ever thought that this widely consumed drug would achieve significant uses other than as an analgesic, antipyretic, and a...

Qimin Yan,1,2 Emmanouil Kioupakis,1,3 Debdeep Jena,4 and Chris G. Van de Walle1 1Materials Department, University of California, Santa Barbara, California 93106-5050, USA 2Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA 4Department of Electrical Engi...

C. J. Dorow,1 M. W. Hasling,1 E. V. Calman,1 L. V. Butov,1 J. Wilkes,2 K. L. Campman,3 and A. C. Gossard3 1Department of Physics, University of California at San Diego, La Jolla, California 92093-0319, USA 2School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA Wales, United Kingdom 3Materials Department, University of California at Santa Barbara, Santa Barbara, California 93106...

It has been slightly more than 100 years since the synthesis, development, and commercialization of acetylsalicylic acid, the most widely consumed drug in the world. It is estimated that 35 000 kg are consumed daily in the United States and 6000 kg in the UK.1 Who would have ever thought that this widely consumed drug would achieve significant uses other than as an analgesic, antipyretic, and a...

A. Schleife,1,2,3 J. B. Varley,3 F. Fuchs,1,2 C. Rödl,1,2 F. Bechstedt,1,2 P. Rinke,2,4 A. Janotti,4 and C. G. Van de Walle4 1Institut für Festkörpertheorie und -optik, Friedrich-Schiller-Universität, Max-Wien-Platz 1, D-07743 Jena, Germany 2European Theoretical Spectroscopy Facility (ETSF) 3Department of Physics, University of California, Santa Barbara, California 93106-9530, USA 4Materials De...

The Model 600 is the newest member of the VAX 6000 series of XMI2-based, multiprocessing computers. The Model 600 processor integrates easily into existing platforms. Each processor module provides 40.5 SPECmarks of performance made possible by the NVAX CPU chip. The major VLSI interface chip, called NEXMI, was created using Digital's internal CMOS-3 design and layout process. The ability to de...

Some drugs have low bioavailability due to their poor aqueous solubility and/or slowdissolution rate in biological fluids. Stiripentol (STP) is a novel anticonvulsant drug that isstructurally unrelated to the currently available antiepileptics. It has poor aqueous solubilityand its solubility has to be enhanced accordingly. Polyethyleneglycol 6000 (PEG-6000) iscommonly utilized as a hydrophilic...