The Proton magnetic resonance (1 H-MRS) spectrum contains information about the concentration of tissue metabolites within a predefined region of interest (a voxel). The conventional spectrum in some cases obscures information about less abundant metabolites due to limited separation and complex splitting of the metabolite peaks. One method to detect these metabolites is to reduce the complexit...

Stormwater is a challenging source of coastal pollution to abate because stormwater also involves complex natural processes, and differentiating these processes from anthropogenic excesses is difficult. The goal of this study was to identify the natural concentrations of stormwater constituents along the 1377 km coastline of California, USA. Twenty-eight ocean reference sites, a priori defined ...

Many insect species have shown dramatic declines over the last decades, as a result of man-related environmental changes. which were formerly widespread are now rare. To document this trend with evidence, old records collected specimens vital. We provide here data on 9752 bee (Hymenoptera: Apoidea) hosted in several museums south-east France: Musée des Confluences Lyon, Muséum d’Histoire Nature...

A large prospective trial published last year seemed to show that extracranial-intracranial bypass was not effective for symptomatic but conventionally inoperable extracranial vascular disease.' The trial, which was purportedly ran-domised but like all surgical trials was not blind, recruited 71 centres and 1377 randomised patients, and cost $9m. The null hypothesis was that the procedure would...

1 Terrestrial Ecology Group. Environmental Reseach Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, USA 2 Center for Forest Mycology, USA Forest Service, Forest Products Laboratory*, Box 1377, Luquillo. Puerto Rico 00773-1377, USA * The Forest Products Laboratory is maintained in coop eration with the University of Wisconsin. This paper was written and and pr...