494 research outputs found
The life histories of platynothrus peltifer (Koch 1839) and damaeus clavipes (Hermann 1804)(Acarina:cryptostigmata) in soils of Pennine moorland
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Presentation: Data access in North America: Current state and future consequences
Presentation at the First DwB European Data Access Forum
Freedom on the Move: A Crowdsourced, Comprehensive Database of North American Runaway Slave Advertisements
'Freedom on the Move' (FOTM) creates a digital resource from an estimated 100,000 runaway slave advertisements from pre-1865 U.S. newspapers. Placed by enslavers when enslaved people attempted to escape, these ads included extensive information about fugitives. They comprise the richest source of information about enslaved individuals in the United States, yet no comprehensive collection of them exists. FOTM will collect these ads and use crowdsourcing to parse their data into a database, enabling sophisticated new analyses of the history of U.S. slavery. A crowdsourcing interface will provide a site for public engagement with an enduring national trauma, supporting lessons for K-12, university, and museum education. The database will be freely available for browsing and exportable for research. NEH start-up funding will enable us to build tools for incorporating large-scale data from contributors, creating a prototype for future expansions of this and similar digital resources
Report on Dagstuhl Workshop on Managing Metadata for Longitudinal Data - Best Practices
Presentation given at the 2nd Annual European DDI Users Group Meeting in Utrecht, The Netherlands, on Dec. 9, 2010.Summary of the activities and outcomes of the workshop "The Data Documentation Initiative (DDI) Standard: Managing Metadata for Longitudinal Data — Best Practices" held Oct. 17-22, 2010, in Wadern, Germany (http://www.dagstuhl.de/10422)
Opportunities and challenges across the research data lifecycle, and related activities at Cornell University
Opportunities and challenges across the research data lifecycle, and related activities at Cornell University
Meeting Funders’ Data Policies: Blueprint for a Research Data Management Service Group (RDMSG)
This report summarizes the elements that we expect to be required in data management plans, describes Cornell’s current capabilities and needs in meeting such requirements, and proposes a structure for a virtual organization that builds on the collaboration between the DRSG, CAC, CUL and CISER. The proposed organization also includes Cornell Information Technologies (CIT) and Weill Cornell Medical College Information Technologies and Services (WCMC-ITS) to further develop and provide this support
Dust in Spiral Galaxies: Comparing Emission and Absorption to Constrain Small-Scale and Very Cold Structures
The detailed distribution of dust in the disks of spiral galaxies is
important to understanding the radiative transfer within disks, and to
measuring overall dust masses if significant quantities of dust are either very
opaque or very cold. We address this issue by comparing measures of dust
absorption, using the galaxy-overlap technique in the optical, with measures of
the dust grains' thermal emission from 50-2000 micron using ISOPHOT on board
ISO and SCUBA at the JCMT. We examine three spiral galaxies projected partially
in front of E/S0 galaxies --- AM1316-241, NGC 5545, and NGC 5091 (for NGC 5091
we have only optical and ISO data). Adopting an empirical exponential model for
the dust distribution, we compare column densities and dust masses derived from
the absorption and emission techniques. This comparison is sensitive to the
amount of dust mass in small, opaque structures, which would not contribute
strongly to area-weighted absorption measures, and to very cold dust, which
would contribute to optical absorption but provide only a small fraction of the
sub-mm emission. In AM1316-241, we find global dust masses of 2-5 x 10^7
M_solar, both techniques agreeing at the 50% level. NGC 5545 has about half
this dust mass. The concordance of dust masses is well within the errors
expected from our knowledge of the radial distribution of dust, and argues
against any dominant part of the dust mass being so cold or opaque. The 50-2000
micron data are well fitted by modified Planck functions with an emissivity law
beta=-2, at 21 +/- 2 K. We also present 12 micron ISOCAM observations of these
pairs.Comparison of H-alpha and 12 micron images of NGC 5545 indicate that
ISOCAM images are reliable tracers of star formation.Comment: 16 pages, 4 tables, 8 figures, in press for October Astronomical
Journa
A contemporary overview of percutaneous coronary interventions The American College of Cardiology–National Cardiovascular Data Registry (ACC–NCDR)
AbstractObjectivesThe American College of Cardiology (ACC) established the National Cardiovascular Data Registry (ACC–NCDR) to provide a uniform and comprehensive database for analysis of cardiovascular procedures across the country. The initial focus has been the high-volume, high-profile procedures of diagnostic cardiac catheterization and percutaneous coronary intervention (PCI).BackgroundSeveral large-scale multicenter efforts have evaluated diagnostic catheterization and PCI, but these have been limited by lack of standard definitions and relatively nonuniform data collection and reporting methods.MethodsBoth clinical and procedural data, and adverse events occurring up to hospital discharge, were collected and reported according to uniform guidelines using a standard set of 143 data elements. Datasets were transmitted quarterly to a central facility for quality-control screening, storage and analysis. This report is based on PCI data collected from January 1, 1998, through September 30, 2000.ResultsA total of 139 hospitals submitted data on 146,907 PCI procedures. Of these, 32% (46,615 procedures) were excluded because data did not pass quality-control screening. The remaining 100,292 procedures (68%) were included in the analysis set. Average age was 64 ± 12 years; 34% were women, 26% had diabetes mellitus, 29% had histories of prior myocardial infarction (MI), 32% had prior PCI and 19% had prior coronary bypass surgery. In 10% the indication for PCI was acute MI ≤6 h from onset, while in 52% it was class II to IV or unstable angina. Only 5% of procedures did not have a class I indication by ACC criteria, but this varied by hospital from a low of 0 to a high of 38%. A coronary stent was placed in 77% of procedures, but this varied by hospital from a low of 0 to a high of 97%. The frequencies of in-hospital Q-wave MI, coronary artery bypass graft surgery and death were 0.4%, 1.9% and 1.4%, respectively. Mortality varied by hospital from a low of 0 to a high of 4.2%.ConclusionsThis report presents the first data collected and analyzed by the ACC–NCDR. It portrays a contemporary overview of coronary interventional practices and outcomes, using uniform data collection and reporting standards. These data reconfirm overall acceptable results that are consistent with other reported data, but also confirm large variations between individual institutions
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