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  • 1
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    Overwintering populations of Anabaena, Aphanizomenon and Microcystis as potential inocula for summer blooms (2013)
    Oxford University Press
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    Publication Date: 2013-10-26
    Description: Overwintering cyanobacterial populations of Nostocales and Microcystis were investigated in six freshwater reservoirs in Northwestern Spain during two consecutive winters. Surface sediments hosted 10 3 –10 5 akinetes mL –1 and 10 2 –10 4 Microcystis colonies mL –1 . Sediments from deeper areas close to dam accumulated 2-fold ( Microcystis ) and 11-fold (akinetes) greater concentrations than those at the shallower upstream areas. Anabaena spp. and Microcystis aeruginosa dominated the sediment pool, with minor amounts of akinetes of Aphanizomenon ( Aph. flos-aquae , Aph. gracile ) and benthic Nostocales ( Cylindrospermum , Nostoc and Trichormus ). Our study confirms the dual benthic-pelagic overwintering of Anabaena, Aphanizomenon and Microcystis , found in the pelagial at 7.5–9.8°C. This study also provides an insight into the little known annual cycle of potential cyanotoxin-producers Aph. gracile and Anabaena circinalis . Our estimates show that: (i) only a small fraction (〈1%) of the sediment pool of akinetes and Microcystis was resupended in the bottom water during winter which, however, may be sufficient inocula to build up the summer maxima under realistic in situ growth rates; and (ii) the time required for the development of summer populations is mainly driven by growth rates, and therefore by the environmental conditions faced by the inoculum, with a lower influence (although greater for Microcystis than for Nostocales) of the inoculum size.
    Print ISSN: 0142-7873
    Electronic ISSN: 1464-3774
    Topics: Biology
    Published by Oxford University Press
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  • 2
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    Research funding. Big names or big ideas: do peer-review panels select the best science proposals? (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-04-25
    Description: This paper examines the success of peer-review panels in predicting the future quality of proposed research. We construct new data to track publication, citation, and patenting outcomes associated with more than 130,000 research project (R01) grants funded by the U.S. National Institutes of Health from 1980 to 2008. We find that better peer-review scores are consistently associated with better research outcomes and that this relationship persists even when we include detailed controls for an investigator's publication history, grant history, institutional affiliations, career stage, and degree types. A one-standard deviation worse peer-review score among awarded grants is associated with 15% fewer citations, 7% fewer publications, 19% fewer high-impact publications, and 14% fewer follow-on patents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Danielle -- Agha, Leila -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):434-8. doi: 10.1126/science.aaa0185. Epub 2015 Apr 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Harvard University, Cambridge, MA 02138, USA. dli@hbs.edu lagha@bu.edu. ; Boston University, Boston, MA 02215, USA. National Bureau of Economic Research, Cambridge, MA 02138, USA. dli@hbs.edu lagha@bu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908820" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/*economics/statistics & numerical data/*trends ; Financing, Organized ; *Journal Impact Factor ; *National Institutes of Health (U.S.) ; Peer Review, Research/*trends ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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