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作者:Clery, Daniel
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作者:Chapman, Melissa; Goldstein, Benjamin R.; Schell, Christopher J.; Brashares, Justin S.; Carter, Neil H.; Ellis-Soto, Diego; Faxon, Hilary Oliva; Goldstein, Jenny E.; Halpern, Benjamin S.; Longdon, Joycelyn; Norman, Kari E. A.; O'Rourke, Dara; Scoville, Caleb; Xu, Lily; Boettiger, Carl
作者单位:University of California System; University of California Santa Barbara; University of California System; University of California Berkeley; University of Michigan System; University of Michigan; Yale University; University of Montana System; University of Montana; Cornell University; University of Cambridge; Universite de Montreal; Tufts University; Harvard University
摘要:Ecologists and conservation scientists have long acknowledged that biodiversity data reflect legacies of social inequity (see the figure). Although the ramifications of these disparities were easy to dismiss when the application of large-scale biodiversity data was limited to academic biogeography and theoretical conservation prioritizations, the stakes have changed. Biodiversity data carry more influence than ever before (1), guiding the implementation of massive multilateral commitments and ...
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作者:Stone, Richard
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作者:Thorp, H. Holden
摘要:In recent years, the research community has become increasingly concerned with issues involving the manipulation of images in scientific papers. Some of these alterations-involving images from experimental techniques such as microscopy, flow cytometry, and western blots-are inadvertent and may not change the conclusions of papers. But in rare cases, some are done deliberately to mislead readers. Image sleuths who can detect these alterations, like the scientific integrity consultant Elisabeth ...
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作者:Brainard, Jeffrey
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作者:Stone, Richard
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作者:[Anonymous]
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作者:Faculak, Mason S.; Veatch, Alexander M.; Alexanian, Erik J.
作者单位:University of North Carolina; University of North Carolina Chapel Hill
摘要:Catalytic methods to couple alkene and amine feedstocks are valuable in synthetic chemistry. The direct carbonylative coupling of alkenes and amines holds promise as a perfectly atom-economical approach to amide synthesis, but general methods remain underdeveloped. Herein, we report an alkene hydroaminocarbonylation catalyzed by unmodified, inexpensive cobalt carbonyl under mild conditions and low pressure promoted by light. Silane addition after the reaction enables sequential cobalt-catalyze...
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作者:Brainard, Jeffrey
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作者:Chomicki, Guillaume; Burin, Gustavo; Busta, Lucas; Gozdzik, Jedrzej; Jetter, Reinhard; Mortimer, Beth; Bauer, Ulrike
作者单位:Durham University; Natural History Museum London; University of Minnesota System; University of Minnesota Duluth; University of British Columbia; University of British Columbia; University of Oxford; University of Bristol; University of Exeter
摘要:Composite traits involve multiple components that, only when combined, gain a new synergistic function. Thus, how they evolve remains a puzzle. We combined field experiments, microscopy, chemical analyses, and laser Doppler vibrometry with comparative phylogenetic analyses to show that two carnivorous Nepenthes pitcher plant species independently evolved similar adaptations in three distinct traits to acquire a new, composite trapping mechanism. Comparative analyses suggest that this new trait...