81 research outputs found

    Land Use, Stream Habitat and Benthic Invertebrate Assemblages in a Highly Altered Iowa Watershed

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    Knowledge of relationships between land cover (i.e., land use) and abiotic and biotic features of headwater streams enhances our ability to predict and effectively assess conditions in a variety of aquatic ecosystems. We evaluated land use effects on stream condition in an Iowa watershed dominated by intensive row crop agriculture and low- intensity urban development by quantifying relationships among land cover, stream invertebrate assemblages and other stream biophysical characteristics (i.e., invertebrate habitat) at 29 sites. On average, 81% of subbasin land cover was agricultural and 6% of land cover was urban across study sites. High nitrate concentrations (range  =  5.6–29.0 mg/L) and high relative abundance of oligochaetes and chironomid midges reflected degraded conditions at all sites. However, agriculture and urban land use appeared to have different effects on stream features. Nitrate concentrations were positively related to agricultural land cover, and turbidity and nitrate concentrations were negatively related to urban land cover (P ≤ 0.05). Invertebrate densities and taxonomic diversity (i.e., total taxa richness, % EPT) were also positively related to agricultural land cover and negatively related to urban land cover. Regardless of land use, highest invertebrate abundance and taxonomic diversity occurred at sites with abundant coarse particulate organic matter, plants and coarse inorganic substrate. Relationships between land cover and invertebrate variables were strong at both local and subbasin measurement scales. Based on invertebrate assemblages, which integrate multiple instream features, we conclude that urban land use had greater adverse effect on stream condition than agriculture in our study watershed. Although impacts of urbanization on stream invertebrates frequently exceed effects of agriculture, this has not previously been demonstrated in Iowa or other Midwestern landscapes so heavily dominated by agriculture

    Geomorphology of the South Sandwich Trench: escarpments, seamounts and deeps

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    The Five Deeps Expedition acquired multibeam bathymetry data in the South Sandwich Trench using a latest-generation, full-ocean depth, Kongsberg EM124 multibeam echosounder. Prior to this fieldwork campaign, little high-resolution bathymetric data were available to underpin a range of marine biodiversity and geodiversity research for better-informed management of the deepest reaches of the South Georgia and South Sandwich Islands Marine Protected Area. The resulting map, covering a ~15,000 km2 area, is based on a combination of semi-automated techniques and expert interpretation of geomorphological features. This work presents the first detailed mapping of the South Sandwich Trench, revealing previously known seamounts and ridge complexes, sedimentary basins, and prevalent step-like escarpments. Smaller scale terraces and submarine landslide scars have also been mapped in detail. Geological and geomorphological interpretation and map production was funded by a grant awarded through the Darwin Initiative funded by the UK Government: Hadal Zones of our Overseas Territories (DPLUS093). doi: 10.13140/RG.2.2.31975.2704

    The influence of maternal health factors including multimorbidity on child oral health:A scoping review and evidence gap map protocol

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    Read the latest article version by Faith Campbell, Scott McGregor, Louise Marryat, Ryan Stewart, Jan Clarkson, Heather Cassie at Wellcome Open Researc

    The influence of maternal health factors including multimorbidity on child oral health:A scoping review and evidence gap map protocol

    Get PDF
    Read the latest article version by Faith Campbell, Scott McGregor, Louise Marryat, Ryan Stewart, Jan Clarkson, Heather Cassie at Wellcome Open Researc

    The Grizzly, August 29, 2002

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    Three Professors Up for Tenure • New Meningitis Vaccine Law in PA • Phi Kappa Sigma: Leaders Commended for Talents • Best Buddies Gives Laptops to the Handicapped • Research Presented by 54 Students and Alumni • Opinions: Zack\u27s Closes the Equivalency Door on Snacks and Juices; New Hours for the Fitness Center Spell Big Problems for Students • Addresses and Phone Numbers to Places in Collegeville • SEPTA Bus Schedule for Collegeville • Ursinus Art & Lecture Series • Fall Sports Ready to Begin Playhttps://digitalcommons.ursinus.edu/grizzlynews/1516/thumbnail.jp

    The influence of maternal health factors including multimorbidity on child oral health : a scoping review and evidence gap map protocol

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    Objective The objective of this scoping review is to map the extent and type of evidence in relation to the association between maternal health conditions, including multimorbidity and child oral health. Introduction Child oral health research has historically focussed on toothbrushing, diet and neglect of care, including not taking children to dental appointments. Newer theories are emerging that detail the many factors that can influence child oral health at child, family and community levels 1 . More recently, the association between maternal general health and child oral health has been explored, with preliminary evidence suggesting a link between shared environmental factors and direct maternal-to-child transfer of bacteria and diet/substance use during pregnancy causing childhood caries 2,3 . Inclusion criteria This review will include all published studies that describe the relationship between maternal health (including multimorbidity) and child oral health. There will be no limitation on the date of publication due to the limited number of studies available from the initial search of PubMed. The review will exclude case studies, abstracts, and grey literature. Literature must be in English language. Methods The following databases will be searched; CINAHL, Cochrane Library, Maternity and Infant Care, Medline via PubMed, Scopus, Web of Science. The search will include sources in English only and will be undertaken between April and July 2024. Studies to be included will be of any type of study design that describe a relationship between maternal health factors, including maternal oral health, and child oral health. Data extraction will be undertaken using tabulation of results by at least two independent reviewers. Narrative analysis of the evidence will be undertaken, and results will be presented in a narrative and tabular manner due to the heterogenous and limited evidence base found in the test search. This review has been registered prospectively on Open Science Framework, (https://doi.org/10.17605/OSF.IO/ECSWJ). The review will also inform an Evidence Gap Map (EGM) to illustrate the current evidence base regarding maternal health factors that influence child oral health

    The Grizzly, February 27, 2003

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    An Appetite for New Ideas: Hunger Activist Visits Ursinus • Blizzard 2003 • Night on the Town Ursinus Style • Black History Month Ends • Opinion: What is the Big Deal About Turning 21? • DanceBOOM: A Unique & Unforgettable Cultural Experience • Erfle, Luciano Reach 1,000 • UC Wrestling Captures Centennial Conference Championship • Good News: Women\u27s Gymnastic Teamhttps://digitalcommons.ursinus.edu/grizzlynews/1530/thumbnail.jp

    The Grizzly, April 3, 2003

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    Holy War, Inc.: An Inside Look at Terrorism Networks • Ursinus Wired Since 1946 • How Safe are Ursinus Students: Interview with Mike Ditty • Students Sing Praise of the Talent Show • Meistersingers Strike a Chord with Audience • Lip Sync Your Way to the Top • Greek Life Gives Back to the Community • Phi Kappa Sigma Brothers Applaud Those Rewarded at Awards Ceremony • Norman David\u27s Curtain Call • Ursinus Gymnasts Finish 3rd at NCGA Championships • Track and Field Open Season • Women\u27s Lacrosse Falls to Gettysburg, College of NJ • This Week in Bears\u27 Baseballhttps://digitalcommons.ursinus.edu/grizzlynews/1533/thumbnail.jp

    The Grizzly, April 24, 2003

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    Queen Noor to Address Ursinus Graduates • Car-Sharing with Zipcar: the Newest Way to Travel • New Orientation Assistants Chosen • Opinions: Human Life Impossible?; Is Campus Parking Really a Big Deal?; Room Lottery and Selection: No Hard Feelings • Behind the Scenes of Psycho Beach Party • Greek Week • Women\u27s Lacrosse Starting to Heat Up • UC Softball Drops Two to Haverfordhttps://digitalcommons.ursinus.edu/grizzlynews/1536/thumbnail.jp

    The Grizzly, February 13, 2003

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    Iraqi Speaker Describes his Country as a Prison of Suffering • Ursinus Student Heroes 30 Years Ago • To Fight or not to Fight: You May not Have the Option • Opinions: Skiing Fun Close to Home; Lonely this Valentine\u27s Day? • Female Pride, Guerrilla Warfare • First of Pew Fellows Speaks • Francis Moore Lappe to Visit Ursinus on February 19th • Ursinus Swimmers Look Towards Champions Meet • Men\u27s Basketball Dominate Centennial Conference • Track Handling Business Indoors • Women\u27s Basketball Can\u27t Find the Right Touchhttps://digitalcommons.ursinus.edu/grizzlynews/1529/thumbnail.jp
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