منابع مشابه
Growing resources
Botanical gardens have been assembling collections of data on local computer networks for some time, but access to these databases via the internet is a more recent innovation. For a look at some of the latest trends in online botanical-garden resources, check out the Royal Botanic Garden Edinburgh (RBGE). The RBGE’s searchable data sets lead visitors to the Araliales Resource Centre, which pro...
متن کاملPlacing Resources on a Growing Line
We consider the problem of placing k identical resources in a graph where each vertex is associated with a nonnegative weight representing the frequency of requests issued by that vertex for the resource. We de ne the cost of a placement as the sum over all vertices of their distances to the closest resource weighted by their weights. The optimal placement is the placement with least cost among...
متن کاملThe Growing Phenomenon of Private Tutoring: Does It Deepen Human Capital, Widen Inequalities, or Waste Resources?
Does private tutoring increase parental choice and improve student achievement, or does it exacerbate social inequalities and impose heavy costs on households, possibly without improving student outcomes? Private tutoring is now a major component of the education sector in many developing countries, yet education policy too seldom acknowledges or makes use of it. This survey of the literature e...
متن کاملThe growing need for resources to help older adults manage their financial and healthcare choices
BACKGROUND Both financial literacy (managing personal finances) and health literacy (managing personal health) become increasingly important for older adults, potentially impacting their quality of life. Resources in these constructs of literacy tend to be distinct, although the skills and decision-making involved overlap as financial issues impact healthcare choices. Thus the primary purpose o...
متن کاملTrue Digestibility of Phosphorus in Different Resources of Feed Ingredients in Growing Pigs
To determine the true digestible phosphorus (TDP) requirement of growing pigs, two experiments were designed with the experimental diets containing five true digestible P levels (0.16%, 0.20%, 0.23%, 0.26% and 0.39%) and the ratio of total calcium to true digestible P (TDP) kept at 2:1. In Experiment 1, five barrows (Duroc×Landrace×Yorkshire) with an average initial body weight of 27.9 kg were ...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2000
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(00)00604-7