1,721,587 research outputs found

    Year 1 Data

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    Study Skills Year 1 Raw Data.csv (Raw Data File) Study Skills Y1 Data Cleaning and Analysis.Rmd (Data Cleaning and Analysis File

    Year 2 Data

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    The Study Skills Year 2 Raw Data.csv (Raw Data The Study Skills year 2 Data Cleaning and Analysis.Rmd (Data Cleaning and Analysis

    Year 1 and 2 Combined Data

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    This is combined dataset needed to replicate Tables 2 and 3

    Year 1 and 2 Combined Data

    No full text
    This is combined dataset needed to replicate Tables 2 and 3

    Year 1 Data

    No full text
    Study Skills Year 1 Raw Data.csv (Raw Data File) Study Skills Y1 Data Cleaning and Analysis.Rmd (Data Cleaning and Analysis File

    Year 2 Data

    No full text
    The Study Skills Year 2 Raw Data.csv (Raw Data The Study Skills year 2 Data Cleaning and Analysis.Rmd (Data Cleaning and Analysis

    Sparse representations for image classification: learning discriminative and reconstructive non-parametric dictionaries

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    1 online resource (PDF, 14 pages, includes illustrations)Rodriguez, Fernando; Sapiro, Guillermo. (2008). Sparse representations for image classification: learning discriminative and reconstructive non-parametric dictionaries. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/179948

    Late Quaternary vegetation, climate and fire dynamics, and evidence of early to mid-Holocene Polylepis forests in the Jimbura region of the southernmost Ecuadorian Andes

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    The vegetation, climate and fire history of high mountain ecosystems in the southern Ecuadorian Andes are documented in a continuous pollen and charcoal record, from Lagunas Narosas Forest bog, at 3495 m a.s.l. spanning the late Pleistocene and Holocene periods since 15,930 cal yr BP. The chronology of this record is based on four radiocarbon dates. Paramo vegetation with abundant Poaceae and Plantago rigida characterized the Late Glacial (LG) period, implying cold and wet conditions. Slight expansions of mountain forests suggest warming during the LG. The upper forest line was lower than today and fire events were rare during the Pleistocene. During the early and mid-Holocene until 4300 cal yr BP, the area of paramo was markedly smaller and the subparamo with woody vegetation (Melastomataceae) was larger. The upper mountain forest dominated and the upper forest line shifted to higher elevations. The pollen record provides the first evidence of the development of Polylepis forests in the southern part of the so-called Anclean Depression reflecting warmer and drier climatic conditions during early and mid-Holocene. The late Holocene after about 4300 cal yr BP is characterized by larger areas of paramo and subparamo promoted by moister conditions. These moister conditions and frequent fires may have been the cause of the very rare occurrence or even extinction of Polylepis populations in the jimbura region. Since ca. 1000 cal yr 3P human occupation has altered the landscape by frequent burning, wood cutting, grazing and cultivation. (C) 201; Elsevier B.V. All rights reserved
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