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Arsenic in the soil environment has gained renewed interest because of the emerging acknowledgement that arsenic accumulation in rice is a global concern. This review reflects the current state of research being provided to the understanding of arsenic in the soil environment with an emphasis on arsenic uptake in rice. Arsenic speciation and the chemical(More)
BACKGROUND To date, drug response genes have not proved as useful in clinical practice as was anticipated at the start of the genomic era. An exception is in the treatment of chronic hepatitis C virus (HCV) genotype 1 infection with pegylated interferon-alpha and ribavirin (PegIFN/R). Viral clearance is achieved in 40%-50% of patients. Interleukin 28B(More)
The stages in adolescent slipping of the upper femoral epiphysis are classified in relation to treatment. The operation of open replacement of the displaced femoral head is described, and the results of a personal series of seventy-three such operations are presented. Open replacement is excellent treatment for severe chronic slipping so long as the growth(More)
A cohort of children presenting with clicking hips was studied in two districts. In one district any child with a clicking hip was treated as though the hip was dislocated, i.e. by splintage in abduction, but in the other district no treatment was offered. None of the 'treated' group later presented with a dislocated hip, whereas four children were found(More)
To simplify the difficult task of writing fault-tolerant parallel software, we implemented extensions to the basic functionality of the LINDA or tuple-space programming model. Our approach implements a mechanism of transaction processing to ensure that tuples are properly handled in the event of a node or communications failure. If a process retrieving a(More)
Accommodative depth cues, a wide field of view, and ever-higher resolutions all present major hardware design challenges for near-eye displays. Optimizing a design to overcome one of these challenges typically leads to a trade-off in the others. We tackle this problem by introducing an all-in-one solution — a new wide field of view, gaze-tracked(More)
SFI WORKING PAPER: 2006-12-055 SFI Working Papers contain accounts of scientific work of the author(s) and do not necessarily represent the views of the Santa Fe Institute. We accept papers intended for publication in peer-reviewed journals or proceedings volumes, but not papers that have already appeared in print. Except for papers by our external faculty,(More)
STUDY DESIGN Single-group repeated-measures design. OBJECTIVES To compare the effects of forward walking (FW) and backward walking (BW) on heart rate (HR) and oxygen consumption (VO2) at treadmill grades of 5%, 7.5%, and 10%. BACKGROUND Previous studies of locomotion by humans on a treadmill have reported larger cardiovascular exertion and potential(More)