PREVALENCE OF NONMEDICAL METHAMPHETAMINE USE IN THE UNITED STATES

Prevalence of nonmedical methamphetamine use in the United States

Abstract Background Illicit methamphetamine use continues to be a public health concern in the United States.The goal of the current study was to use a relatively inexpensive methodology to examine the prevalence and demographic correlates of nonmedical methamphetamine use in the United States.Methods The sample was obtained through an internet sur

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Improving flood forecasting capability of physically based distributed hydrological models by parameter optimization

Physically based distributed hydrological models (hereafter referred to as PBDHMs) divide the terrain of the whole catchment into a number of grid cells at fine resolution and assimilate different terrain data and precipitation to different cells.They are regarded to have the potential to improve the catchment hydrological process simulation and pr

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Pattern of sucker development in cuttlefishes

Abstract Background Morphological novelties have been acquired through evolutionary processes and related to the adaptation of new life-history strategies with new functions of the bodyparts.Cephalopod molluscs such as octopuses, squids and cuttlefishes possess unique morphological characteristics.Among those novel morphologies, in particular, suck

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