منابع مشابه
Use of school gardens in academic instruction.
OBJECTIVE To determine the status of gardens in California schools. DESIGN A self-administered Internet and mailed survey was sent to all California principals (N = 9805). PARTICIPANTS 4194 California school principals. VARIABLES MEASURED School garden practices, attitudes associated with the use of gardens in schools, and perceptions of barriers to having and using school gardens in acad...
متن کاملBotany :
By the law of mutually exclusive events, the distribution of a' when s' is known can be found by integrating the present p(a)p(cr)dadu over all o. Equation (9) is then in fact obtained, showing the consistency of the results given in these papers. Equation (9) is the answer to question'(A); and while the answer to question (A) has thus been shown to follow from the answer to question (B), the m...
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Delivering an inadequate amount of light to a light-cured resin will result in a resin that is inadequately cured. This study measured the radiant exposure that students delivered to a simulated restoration to determine if instruction with immediate feedback increased the amount of light they delivered. The amount of light (radiant exposure in J/cm(2)) delivered to a simulated restoration by si...
متن کاملAgricultural Instruction in the Middle School
The W. K. Kellogg Foundation (1984) reported that there were few issues of greater importance to the world than adequate food supplies, proper food use, and the knowledge of the components of the agricultural industry. Yet according to a study conducted by the Kansas State Center for Extended Services and Studies, less than 30% of 2000 elementary, junior, and senior high students surveyed gave ...
متن کاملExperimental botany in 2017
Journal of Experimental Botany (JXB) has a long and prestigious history of publishing high-quality papers presenting new findings across a broad range of plant sciences. This year, 2017, marks the journal’s 68th year, and the coming two years leading up to our 70th anniversary will be a particularly exciting period. With a new Editor in Chief five years ago, it was an important point to reflect...
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ژورنال
عنوان ژورنال: Nature
سال: 1922
ISSN: 0028-0836,1476-4687
DOI: 10.1038/110512b0