27 research outputs found

    Surface Area of River and Lakes (SARL)

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    The Surface Area of River and Lakes (SARL) dataset has been developed to show the 38-years of seasonal and permanent water surface area change in rivers and lakes

    A Global Ecological Classification of Coastal Segment Units to Complement Marine Biodiversity Observation Network Assessments

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    A new data layer provides Coastal and Marine Ecological Classification Standard (CMECS) labels for global coastal segments at 1 km or shorter resolution. These characteristics are summarized for six US Marine Biodiversity Observation Network (MBON) sites and one MBON Pole to Pole of the Americas site in Argentina. The global coastlines CMECS classifications were produced from a partitioning of a 30 m Landsat-derived shoreline vector that was segmented into 4 million 1 km or shorter segments. Each segment was attributed with values from 10 variables that represent the ecological settings in which the coastline occurs, including properties of the adjacent water, adjacent land, and coastline itself. The 4 million segments were classified into 81,000 coastal segment units (CSUs) as unique combinations of variable classes. We summarize the process to develop the CSUs and derive summary descriptions for the seven MBON case study sites. We discuss the intended application of the new CSU data for research and management in coastal areas

    Global Shoreline Ternary Process Classification

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    The Global Shoreline Ternary Process Classification shows the relative fluvial, tidal and wave influence shaping the geomorphology of shorelines. A two tier ternary classification is used to define nine shoreline types as F – Fluvial-dominated, Ft – Fluvial-dominated Tide-influenced, Fw – Fluvial-dominated Wave-influenced, T – Tide-dominated, Tf – Tide-dominated Fluvial-influenced, Tw – Tide-dominated Wave-influenced, W – Wave-dominated, Wf – Wave-dominated Fluvial-influenced and Wt – Wave-dominated Tide-influenced

    SEDucate: Sedimentary Log Exercises for an Active Learning Environment

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    Global Terrestrial Sink Catchment Database

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    The GTSC database delineates the global drainage of rivers (catchments) to terrestrial sinks

    Source to Sink Database

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    The Source-to-Sink (S2S) Database shows a global digital database of catchments and morphological parameters relating to its rivers length, hinterland relief, lithology, continental shelf, continental slope and submarine fan dimensions

    Global Modern Sedimentary Basins

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    The global modern sedimentary basins (GMSB) database show the distribution of modern sedimentary basins that have preservation potential and are thus analogous to the past sedimentary record

    Intestinal lymphocytic epithelioganglionitis: a unique combination of inflammation in bowel dysmotility: a histopathological and immunohistochemical analysis of 28 cases

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    Intestinal lymphocytic epithelioganglionitis: a unique combination of inflammation in bowel dysmotility: a histopathological and immunohistochemical analysis of 28 cases Visceral inflammatory neuropathies are enteric disorders underlying various forms of bowel dysmotility. The aim was to analyse the microscopic characteristics of a unique combination of intraepithelial lymphocytosis and myenteric ganglioneuritis. Paraffin sections of full-thickness proximal jejunal biopsy specimens from 28 patients, with proven disorders of gastrointestinal motility, were analysed following conventional and immunohistochemical staining. Serial transversal and tangential sectioning visualized large myenteric plexus areas. Between 1993 and 2005, 28 patients with inflammatory neuropathy (25 female and three male) showed this combination of lymphocytic infiltration. Two of the patients also had coeliac disease. The mean number of intraepithelial CD3+ lymphocytes was 36 per 100 epithelial cells (range 27-68; upper normal limit 25 lymphocytes). There was myenteric ganglionitis of variable severity (mean 4.6 myenteric lymphocytes per ganglion; upper normal limit two lymphocytes) with cytotoxic T-cell predominance. Myenteric neurons showed signs of degeneration and an abnormal immunohistological pattern. Hyperplasia and hypertrophy of Cajal cells were observed. The longitudinal muscle layer was thickened in many cases. A subset of patients with gastrointestinal motility disorders exhibit the combination of intraepithelial lymphocytosis and myenteric ganglionitis in full thickness biopsy specimens of the small bowel. We suggest calling this entity 'intestinal lymphocytic epithelioganglionitis'
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