30 research outputs found

    New record of the seagrass species Halophila major (Zoll.) Miquel in Vietnam: evidence from leaf morphology and ITS analysis

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    The seagrass Halophila major (Zoll.) Miguel is reported for the first time from Vietnam. It was found growing with other seagrass species nearshore, 4-6 m deep at Tre Island, Nha Trang Bay. Leaf morphology and phylogenetic analysis based on ribosomal internal transcribed spacer sequences confirmed the identification. There was very little sequence differentiation among samples of H. major collected in Vietnam and other countries in the Western Pacific region. A very low evolutionary divergence among H. major populations was found.Leibniz University Hannover,Government of Vietna

    md_ngo_long_anon

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    Cleaned dataset, long dataset by frequency at participant level data. See ReadMeFile_013015 for more information, including variable definitions (codebook)

    Phylogeny of Acronychia (Rutaceae) and first insights into its historical biogeography and the evolution of fruit characters

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    Background: The genus Acronychia (Citrus family, Rutaceae) contains 49 species of trees and shrubs that are found mainly in rain forest. The genus has a large distributional range from mainland southern Asia to Australia and New Caledonia, but most species are endemic to either New Guinea or Australia. This study aimed to provide the first detailed molecular phylogeny of Acronychia and use it to test the taxonomic value of fruit morphological characters, and infer the historical biogeography of the genus.\ud \ud Methodology: Phylogenetic analyses (Bayesian Inference, Maximum Likelihood) were undertaken on nucleotide sequence data from two plastid (psbA-trnH, trnL-trnF) and three nuclear markers (ETS, ITS, NIAi3) from 29 Acronychia species (59% of the genus) and representatives of related genera.\ud \ud Results and Conclusions: The results indicate that the South-East Asian genus Maclurodendron is nested phylogenetically within Acronychia and must be synonymized to render Acronychia monophyletic. Fruit morphological characters have been used previously to infer relationships within Acronychia and our analyses show that these characters are informative for some subclades but are homoplasious for the group as a whole. Apocarpous fruits are the ancestral state in Acronychia and subapocarpous and fully syncarpous fruits are derived. The unisexual flowers of Maclurodendron are derived from bisexual flowers, which are found in all species of Acronychia as well as its relatives. Acronychia probably first evolved on Australia with range expansion to New Guinea via stepping-stone dispersal or direct land connections within the Sahul Shelf, followed by two independent dispersals to areas west of New Guinea. Most species of Acronychia occur in either Australia or New Guinea, but no species occurs in both regions. This is surprising given the close proximity of the landmasses, but might be explained by ecological factors

    Data from: In an age of open access to research policies: physician and public health NGO staff research use and policy awareness

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    Introduction: Through funding agency and publisher policies, an increasing proportion of the health sciences literature is being made open access. Such an increase in access raises questions about the awareness and potential utilization of this literature by those working in health fields. Methods: A sample of physicians (N=336) and public health non-governmental organization (NGO) staff (N=92) were provided with relatively complete access to the research literature indexed in PubMed, as well as access to the point-of-care service UpToDate, for up to one year, with their usage monitored through the tracking of web-log data. The physicians also participated in a one-month trial of relatively complete or limited access. Results: The study found that participants' research interests were not satisfied by article abstracts alone nor, in the case of the physicians, by a clinical summary service such as UpToDate. On average, a third of the physicians viewed research a little more frequently than once a week, while two-thirds of the public health NGO staff viewed more than three articles a week. Those articles were published since the 2008 adoption of the NIH Public Access Policy, as well as prior to 2008 and during the maximum 12-month embargo period. A portion of the articles in each period was already open access, but complete access encouraged a viewing of more research articles. Conclusion: Those working in health fields will utilize more research in the course of their work as a result of (a) increasing open access to research, (b) improving awareness of and preparation for this access, and (c) adjusting public and open access policies to maximize the extent of potential access, through reduction in embargo periods and access to pre-policy literature

    md_ngo_raw_anon

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    Raw dataset, uncleaned. Note: There are some duplication of observations in the raw file. These can be noted as all variables for the observations are identical. The “cleaned” files remove these duplicates. See ReadMeFile_013015 for more information, including variable definitions (codebook)

    In an Age of Open Access to Research Policies: Physician and Public Health NGO Staff Research Use and Policy Awareness

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    <div><p>Introduction</p><p>Through funding agency and publisher policies, an increasing proportion of the health sciences literature is being made open access. Such an increase in access raises questions about the awareness and potential utilization of this literature by those working in health fields.</p><p>Methods</p><p>A sample of physicians (<i>N</i>=336) and public health non-governmental organization (NGO) staff (<i>N</i>=92) were provided with relatively complete access to the research literature indexed in PubMed, as well as access to the point-of-care service UpToDate, for up to one year, with their usage monitored through the tracking of web-log data. The physicians also participated in a one-month trial of relatively complete or limited access.</p><p>Results</p><p>The study found that participants' research interests were not satisfied by article abstracts alone nor, in the case of the physicians, by a clinical summary service such as UpToDate. On average, a third of the physicians viewed research a little more frequently than once a week, while two-thirds of the public health NGO staff viewed more than three articles a week. Those articles were published since the 2008 adoption of the NIH Public Access Policy, as well as prior to 2008 and during the maximum 12-month embargo period. A portion of the articles in each period was already open access, but complete access encouraged a viewing of more research articles.</p><p>Conclusion</p><p>Those working in health fields will utilize more research in the course of their work as a result of (a) increasing open access to research, (b) improving awareness of and preparation for this access, and (c) adjusting public and open access policies to maximize the extent of potential access, through reduction in embargo periods and access to pre-policy literature.</p></div

    Top ten journals by article views for MDs (<i>n</i> = 115) over 11 months.

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    <p>Top ten journals by article views for MDs (<i>n</i> = 115) over 11 months.</p

    Monthly totals of the MDs (<i>n</i> = 115) and public health NGO staff (<i>n</i> = 62) viewing at least one research article, over 11 months and 12 months, respectively.

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    <p>Monthly totals of the MDs (<i>n</i> = 115) and public health NGO staff (<i>n</i> = 62) viewing at least one research article, over 11 months and 12 months, respectively.</p

    md_ngo_wide_month_anon

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    Cleaned dataset, for generating monthly running average. See ReadMeFile_013015 for more information, including variable definitions (codebook)

    md_ngo_wide_anon

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    Cleaned dataset, wide dataset by participant level data. See ReadMeFile_013015 for more information, including variable definitions (codebook)
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