SHANGHAI WATER-WORKS. (INCLUDING PLATES AT BACK OF VOLUME).

Water Works in India

Most mornings, the line begins to form at dawn: scores of silent women with babies strapped to their backs, buckets balanced on their heads, and in each hand a bright-blue plastic jug. On good days, they will wait less than an hour before a water tanker rumbles across the rutted dirt path that passes for a road in Kesum Purbahari, a slum on the southern edge of New Delhi. On bad days, when ther...

Optimization of modified volume Fresnel zone plates.

Modified volume Fresnel zone plates (MVFZPs) fabricated with laser direct writing were optimized for higher diffraction efficiencies. The Fresnel radii in each layer of a volume zone plate were iteratively adjusted by a simulation-based direct search optimization. The results show that optimization is effective but depends strongly on the starting diffraction efficiencies determined by the MVFZ...

TrkB Works at Postsynaptic Sites

expression of homologous truncated TrkA had no effect on the pattern of receptor clusters. Furthermore, in mutant trkB ϩ/Ϫ mice in which the level of TrkB expression The classical view of neurotrophins as target-derived is reduced, small punctate AChR regions are also ob-survival factors in the developing nervous system has served. The morphological similarity of receptor clusters changed drama...

The Pasteur-Chamberland System of Filtration at the Darjeeling Water-Works

Exercise and chronic low back pain: what works?

The aim of this review was to investigate current evidence for the type and quality of exercise being offered to chronic low back pain (CLBP) patients, within randomised controlled trials (RCTs), and to assess how treatment outcomes are being measured. A two-fold methodological approach was adopted: a methodological assessment identified RCTs of 'medium' or 'high' methodological quality. Exerci...