4,138 research outputs found

    A theory-based approach to understanding condom errors and problems reported by men attending an STI clinic

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    The official published version can be accessed from the link below - Copyright @ 2008 Springer VerlagWe employed the information–motivation–behavioral skills (IMB) model to guide an investigation of correlates for correct condom use among 278 adult (18–35 years old) male clients attending a sexually transmitted infection (STI) clinic. An anonymous questionnaire aided by a CD-recording of the questions was administered. Linear Structural Relations Program was used to conduct path analyses of the hypothesized IMB model. Parameter estimates showed that while information did not directly affect behavioral skills, it did have a direct (negative) effect on condom use errors. Motivation had a significant direct (positive) effect on behavioral skills and a significant indirect (positive) effect on condom use errors through behavioral skills. Behavioral skills had a direct (negative) effect on condom use errors. Among men attending a public STI clinic, these findings suggest brief, clinic-based, safer sex programs for men who have sex with women should incorporate activities to convey correct condom use information, instill motivation to use condoms correctly, and directly enhance men’s behavioral skills for correct use of condoms

    Effect of Abundance and Survey Protocol on Estimates of Occupancy and Detection Probability for Northern Bobwhites

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    We compared estimates of occupancy of northern bobwhite (Colinus virginianus) between areas with relatively low and high abundance using single-survey and multiple-survey protocols, with and without accounting for detection probability, and investigated how time during the breeding season affected detection probability in Oklahoma, USA, in 2009–2011. Estimates of occupancy and detection probability increased as the number of survey occasions increased. Detection probability was significantly higher in the area of high abundance (P 0.001), and increased as the breeding season advanced from mid-May to late July. Accounting for detection probability increased occupancy estimates by 31% in the low-abundance area but only 1.9% in the high abundance area when using 3 survey occasions per year. Managers using occupancy to detect changes in bobwhite populations should use 4 survey occasions per year to ensure accurate estimates of both occupancy and detection probability

    Satellite Temperature Monitoring and Prediction System

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    This system used data from the Geostationary Operational Environmental Satellite (GOES) to derive and display surface temperature distributions throughout peninsular Florida on cold nights. These distributions, in conjunction with ground meteorological data, provide inputs to mathematical models which predict temperature distributions up to 10 hours in advance. This system is being developed by scientists at the University of Florida Institute of Food and Agricultural Sciences (IFAS) in cooperation with and sponsored by the National Aeronautics and Space Administration (NASA), Kennedy Space Center (KSC) supported by the National Oceanic and Atmospheric Administration (NOAA), National Weather Service (NWS). The system has been installed in the NWS facility at Ruskin, Florida, and has been operated in an experimental mode by NWS forecasters for the past three winters. The primary purpose of the system is to provide a tool for use by NWS weather forecasters to permit more timely more complete and more accurate temperature data for use by agricultural interests on nights when their crops are threatened by a cold wave. This better information can result in more timely decisions in the use of frost protection techniques thus deriving substantial benefits in terms of cost savings and crops protected and salvaged

    A three-dimensional current meter for estuarine applications

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    A curr ent meter that is capable of measuring the high-frequency fluctuations of the three-dimensional velocity vector has been developed. The meter works on a doppler-shift principle. At high velocities, the meter has been shown to have an accuracy of better than 3%

    Adapting SAM for CDF

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    The CDF and D0 experiments probe the high-energy frontier and as they do so have accumulated hundreds of Terabytes of data on the way to petabytes of data over the next two years. The experiments have made a commitment to use the developing Grid based on the SAM system to handle these data. The D0 SAM has been extended for use in CDF as common patterns of design emerged to meet the similar requirements of these experiments. The process by which the merger was achieved is explained with particular emphasis on lessons learned concerning the database design patterns plus realization of the use cases.Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 4 pages, pdf format, TUAT00

    Addressing Cervical Cancer in Central Appalachia

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    Rural women, particularly those residing in Appalachia, have some of the nation’s highest cervical cancer mortality rates. With support from federal and private grants, the University of Kentucky Center for Excellence in Rural Health-Hazard is attempting to address this issue. Eastern Kentucky-based researchers are surveying 18- to 26-year-old female community health center patients and college students about their risk factors for the disease, and then offering them free Gardasil, a vaccine against the virus that causes most cervical cancer cases

    Social stress and glucocorticoids alter PERIOD2 rhythmicity in the liver, but not in the suprachiasmatic nucleus

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    Circadian (~24 h) rhythms in behavior and physiological functions are under control of an endogenous circadian pacemaker in the suprachiasmatic nucleus (SCN) of the hypothalamus. The SCN directly drives some of these rhythms or serves as a coordinator of peripheral oscillators residing in other tissues and organs. Disruption of the circadian organization may contribute to disease, including stress-related disorders. Previous research indicates that the master clock in the SCN is resistant to stress, although it is unclear whether stress affects rhythmicity in other tissues, possibly mediated by glucocorticoids, released in stressful situations. In the present study, we examined the effect of uncontrollable social defeat stress and glucocorticoid hormones on the central and peripheral clocks, respectively in the SCN and liver. Transgenic PERIOD2::LUCIFERASE knock-in mice were used to assess the rhythm of the clock protein PERIOD2 (PER2) in SCN slices and liver tissue collected after 10 consecutive days of social defeat stress. The rhythmicity of PER2 expression in the SCN was not affected by stress exposure, whereas in the liver the expression showed a delayed phase in defeated compared to non-defeated control mice. In a second experiment, brain slices and liver samples were collected from transgenic mice and exposed to different doses of corticosterone. Corticosterone did not affect PER2 rhythm of the SCN samples, but caused a phase shift in PER2 expression in liver samples. This study confirms earlier findings that the SCN is resistant to stress and shows that clocks in the liver are affected by social stress, which might be due to the direct influence of glucocorticoids released from the adrenal gland
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