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Husbandry and health of the African clawed frog, Xenopus laevis, greatly influences the quality of oocytes produced. One factor affecting oocyte quality is the water conditions in which females are maintained. Dechlorination and adequate salt concentration are known to affect oocytes, but water hardness has not been considered an important factor in Xenopus(More)
NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering , and the Institute of Medicine. The members of the Committee responsible for the report were chosen for their special(More)
NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering , and the Institute of Medicine. The members of the Committee responsible for the report were chosen for their special(More)
The articles in this issue review pertinent and specifi c information about infectious and noninfectious disease, housing system design and function, husbandry practices and techniques , and Internet resources as they spe cifi cally relate to zebrafi sh (Danio rerio). This article explores aspects that members of institutional animal care and use(More)
BACKGROUND PE lessons are the formal opportunity in schools for promotion of physical activity and fitness. This study aimed to evaluate the effectiveness of a pilot PE intervention on physical activity, fitness, and psychosocial outcomes. METHODS Participants were 139 children aged 10-11 years from four schools. For six weeks children in two schools(More)
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