What constrains the distribution of orchid populations?
نویسندگان
چکیده
منابع مشابه
What Constrains Africa’s Exports?
The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expresse...
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Background Despite decades of evidence gathering and calls for action, few countries have systematically attenuated health inequities (HI) through action on the social determinants of health (SDH). This is at least partly because doing so presents a significant political and policy challenge. This paper explores this challenge through a review of the empirical literature, asking: what factors h...
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ing four different theories of ventral temporal cortical organization, presented here in order from most modular to less modular. 'Faces are special' According to one model 6,7 , faces are processed in a separate module, reasonably enough, given their sociobiological relevance , and all other objects (perhaps with the exception of letters, which also often get their own module) are processed by...
متن کاملWhat Constrains Africa ' s exports ? Caroline
We examine the effects of transit, documentation, and ports and customs delays on Africa’s exports. We find that transit delays have the most economically and statically significant effect on exports. A one day reduction in inland travel times leads to a 7 percent increase in exports. Put another way, a one day reduction in inland travel times translates into 1.5 percentage point decrease in al...
متن کاملMorality constrains the default representation of what is possible.
The capacity for representing and reasoning over sets of possibilities, or modal cognition, supports diverse kinds of high-level judgments: causal reasoning, moral judgment, language comprehension, and more. Prior research on modal cognition asks how humans explicitly and deliberatively reason about what is possible but has not investigated whether or how people have a default, implicit represe...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2013
ISSN: 0028-646X,1469-8137
DOI: 10.1111/nph.12639