2,351 research outputs found

    A record of late Quaternary environments at lunette-lakes Bolac and Turangmoroke, Western Victoria, Australia, based on pollen and a range of non-pollen palynomorphs

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    A palaeoecological record from Lakes Bolac and Turangmoroke details the changing nature of vegetation patterns, lake levels and climate in the drier part of the Victorian Western Plains over approximately the last 90,000 years. In addition to the routine palynological proxies of pollen, spores and charcoal, a range of non-pollen palynomorphs (remains of algae, fungi, insects and other invertebrates) was analysed and described and provides useful additional information on the ecology of past vegetation communities. A chronology for the record is provided by radiocarbon and refined optical luminescence dating in the upper part of the sequence, and the latter technique is used to provide a timeframe for the period beyond the radiocarbon limit. The record shows that during marine isotope stage (MIS) 5.1 and mid MIS 3 the regional vegetation was composed of open woodland dominated by Allocasuarina luehmannii type with low numbers of Banksia, Eucalyptus and other Myrtaceae under which a diverse understorey developed. During these times Lake Turangmoroke held fresh water of varying depths. The degree of representation of MIS 4 and MIS 3 in the record is uncertain owing to discontinuities resulting from the lake having periodically dried. A change to open grassland-steppe occurred shortly after 47,000 years ago and lake levels fluctuated considerably before the lake became shallow and saline. Open grassland-steppe continued through MIS 2 with almost no trees present while the aquatic flora reflected further lake level declines and increasing salinity. Driest conditions, indicated by deflation of lake sediments during lunette building, occurred between similar to 18,000 and similar to 11,000 cal yr BP. Open woodland in the early Holocene was dominated by A. verticillata type until partial replacement by Eucalyptus around 7000-8000 (14)C yr BP when the vegetation cover present at European arrival was established. (c) 2008 Elsevier B.V. All rights reserved

    Observed relationships between El Niño-Southern Oscillation, rainfall variability and vegetation and fire history on Halmahera, Maluku, Indonesia

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    A temporally high-resolution palynological study of the uppermost section of core MD98-2180 from Kau Bay, Halmahera, Indonesia, provides a vegetation and fire record covering the last 250 years. The record is compared with the Maluku Rainfall Index, Southern Oscillation Index (SOI) and southern hemisphere winter sea surface temperatures (SST) for the central Pacific Ocean based on instrumental data, as well as reconstructions of the SOI and the central Pacific SST and historically recorded El Nino events. The results show that significant El Nino events are generally associated with increased representation of Dipterocarpaceae pollen, probably reflecting the mass-flowering of this taxon during El Nino-Southern Oscillation (ENSO) droughts, and elevated charcoal levels, reflecting a greater incidence of fires during these extremely dry periods, while humid phases show increased fern numbers. Our findings demonstrate that pollen records 'ecological' in scale can provide useful additional proxy records of ENSO events

    A chart of part of the south coast of Newfoundland [cartographic material] : includingthe islands St. Peters and Miquelon, from an actual survey /

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    Detailed chart of part of the Newfoundland, Canadian coast with relief shown by hachures and bathymetric soundings.; "Scale to the general chart English and French leagues 20 to a degree"; Accompanied by booklet: Directions for navigating on part of the south coast of Newfoundland, with a chart thereof, including the islands of St. Peter's and Miquelon ... / by James Cook. London : Printed for the author, and sold by J.Mount and T. Page on Tower-Hill, 1766. 32 p. : 24 cm.; Insets: Harbours of St. Laurence; Harbour [of] Briton.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-rm423

    Where Participatory Approaches Meet Pragmatism in Funded (Health) Research: The Challenge of Finding Meaningful Spaces

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    The term participatory research is now widely used as a way of categorising research that has moved beyond researching "on" to researching "with" participants. This paper draws attention to some confusions that lie behind such categorisation and the potential impact of those confusions on qualitative participatory research in practice. It illuminates some of the negative effects of "fitting in" to spaces devised by other types of research and highlights the importance of forging spaces for presenting participatory research designs that suit a discursive approach and that allow the quality and impact of such research to be recognised. The main contention is that the adoption of a variety of approaches and purposes is part of the strength of participatory research but that to date the paradigm has not been sufficiently articulated. Clarifying the unifying features of the participatory paradigm and shaping appropriate ways for critique could support the embedding of participatory research into research environments, funding schemes and administration in a way that better reflects the nature and purpose of authentic involvement

    Xystodesmidae Cook 1895

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    Family Xystodesmidae Cook, 1895 <p> <b>Subfamily Xystodesminae Cook, 1895</b></p> <p> <b>Tribe Xystocheirini Hoffman, 1980</b></p> <p> Hoffman (1999) mistakenly attributed tribal authorship to Cook without a date, perhaps because he confused this name with Xystodesmidae /inae, which Cook (1895) did author, or because Cook (1904) subsequently authored the genus. However, the first usage of <i>Xystocheir</i> at the family-group level was by Hoffman (1980), as he then noted, and authorship is properly attributed to him.</p>Published as part of <i>Shelley, Rowland M., Smith, Jamie M. & Ross, Deren J., 2014, Variation and pigmentation in the milliped, Xystocheir brachymacris Shelley, 1996, from the northern Sierra Nevada foothills, California, USA (Polydesmida: Xystodesmidae: Xystocheirini), pp. 1-6 in Insecta Mundi 2014 (371)</i> on page 2, DOI: <a href="http://zenodo.org/record/5179327">10.5281/zenodo.5179327</a&gt

    COOK, George

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    Title: Papers, 1855-1931 Description: .5 linear ft. Notes: Author, educator. Includes correspondence, manuscripts, addresses, biographical sketches, memorials, photographs, a scrapbook and a song composed by William Weston Patton, President of Howard University. Gift, 1958. Subjects: Business; Education; Washington (DC). Childers, Lulu V. Du Bois, W. E. B. (William Edward Burghardt), 1868-1963; As correspondent Funeral rites and ceremonies; Cook, George William Howard University; Administration Howard University; Faculty; Cook, George William Howard University; Presidents; Patton, William Weston Howard University; Students; Cook, George William Howard University, Washington (DC); Faculty members\u27 papers Howard University, Washington (DC); School of Commerce and Finance Patton, William Weston Roosevelt, Theodore, 1858-1919; As correspondent Spingarn, J. E. (Joel Elias), 1875-1939 Tunnell, W. V. White, Walter F. (Walter Francis), 1893-1955; As correspondent Wilkinson, F. D. Woodson, Carter G. (Carter Godwin), 1875-1950 Location: Howard University, Moorland-Spingarn Research Center (Washington, DC) NIDS Fiche #: 4.72.22 NUCMC Number: MS 83-122

    Adaptive sampling in two-phase designs: a biomarker study for progression in arthritis

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    Response‐dependent two‐phase designs are used increasingly often in epidemiological studies to ensure sampling strategies offer good statistical efficiency while working within resource constraints. Optimal response‐dependent two‐phase designs are difficult to implement, however, as they require specification of unknown parameters. We propose adaptive two‐phase designs that exploit information from an internal pilot study to approximate the optimal sampling scheme for an analysis based on mean score estimating equations. The frequency properties of estimators arising from this design are assessed through simulation, and they are shown to be similar to those from optimal designs. The design procedure is then illustrated through application to a motivating biomarker study in an ongoing rheumatology research program. This is the peer-reviewed version of the following article: McIsaac, M. A., & Cook, R. J. (2015). Adaptive sampling in two-phase designs: a biomarker study for progression in arthritis. Statistics In Medicine, 34(21), 2899-2912. doi:10.1002/sim.6523, which has been published in final form at https://doi.org/10.1002/sim.6523. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Version

    The flirt, polka characteristique

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    Mis E.H. of Baltimore; Miss M.W. of Phila.; Miss P.W.M. of New Orleans; Miss A.L. of Boston; Miss L.P. of New YorkJohns Hopkins University, Levy Sheet Music Collection, Box 100, Item 083Cover is duplicated in 100.085. Music is duplicated in 100.085.pianopolkaCover is duplicated in 100.080. Music is duplicated in 100.080.Lith. of Sarony Major & Knapp N.Y.Composed by T.J. Cook, "author of the popular Three & Four Bell's [sic] Polka's [sic].

    The flirt, polka characteristique

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    Mis E.H. of Baltimore; Miss M.W. of Phila.; Miss P.W.M. of New Orleans; Miss A.L. of Boston; Miss L.P. of New YorkJohns Hopkins University, Levy Sheet Music Collection, Box 100, Item 083Cover is duplicated in 100.085. Music is duplicated in 100.085.pianopolkaCover is duplicated in 100.080. Music is duplicated in 100.080.Lith. of Sarony Major & Knapp N.Y.Composed by T.J. Cook, "author of the popular Three & Four Bell's [sic] Polka's [sic].

    Five belles polka

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    Mis E.H. of Baltimore; Miss M.W. of Phila.; Miss P.W.M. of New Orleans; Miss A.L. of Boston; Miss L.P. of New YorkJohns Hopkins University, Levy Sheet Music Collection, Box 100, Item 082Cover is duplicated in 100.085. Music is duplicated in 100.085.pianopolkaCover is duplicated in 100.080. Music is duplicated in 100.080.Lith. of Sarony Major & Knapp N.Y.Composed by T.J. Cook, "author of the popular Three & Four Bell's [sic] Polka's [sic].
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