This primer accompanies the release of BAGS, software developed to calculate sediment transport rate in gravel-bed rivers. BAGS and other programs facilitate calculation and can reduce some errors, but cannot ensure that calculations are accurate or relevant. This primer was written to help the software user define relevant and tractable problems, select appropriate input, and interpret and app...

protein aggregation is a serious problem for both biotechnology and cell biology. diseases such as prion misfolding, alzheimer’s, and other amyloidosis are phenomena for which protein aggregation in our living cells is of considerable relevance. human lysozyme has been shown to form amyloid fibrils in individuals suffering from nonneuropathic systemic amyloidosis, all of which have point mutati...

The dominant mechanism affecting the flow behavior of granular materials is the random motions of particles resulted from the interactive collisions between particles. The velocity fluctuations induce the segregation in granular flows. The different physical properties of granular material were used to investigate the segregation in a vibrated granular bed in this paper. The image processing te...

sediment flushing of reservoirs is an operational technique, whereby previously accumulated sediments in the reservoirs are hydraulically removed by accelerated flow when the bottom desiltingoutlets of the dam are opened. in this research, the process of sediment flushing is simulated by a three dimensional numerical model in which sediment and flow interaction are reflected in the reservoirs. ...

Preparations of human fibrinogen, digested by plasmin, inhibited ADP-induced platelet aggregation; the inhibitory activity was confined to the small dialyzable fragments accumulating during the degradation. Purified large molecular weight fragments D and E had no effect on ADPinduced aggregation, but fragment E inhibited thrombin-induced aggregation. Extensively degraded bovine fibrinogen prepa...

Bed bugs, Cimex lectularius L., hide in cracks and crevices in furniture and are difÞcult to control. The bed bug thermal death kinetics were examined to develop a heat treatment method to eliminate bed bug infestations in room contents. High temperatures caused temporary immobilization (knockdown) of bed bugs evenwith exposures that did not have lethal effects. Exposure of bed bug adults to 39...

Background:Infant mortality is often used as a standard measure of a population’s health. Until cause of Sudden Infant Death Syndrome is unknown (SIDS), the best strategy to decrease SIDS, is programming to decrease facing with risk factors. The aim of this study was to find the SIDS risk factors among families during their child care in Iran. The study is the first in Iran to examine the risk ...