280 research outputs found

    Seasonal habitat use of river otters in northwestern Montana

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    Reproductive morphology of three species of deep-water precious corals from the Hawaiian Archipelago : Gerardia Sp., Corallium secundum, and Corallium lauuense

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    Author Posting. © University of Miami - Rosenstiel School of Marine and Atmospheric Science, 2007. This article is posted here by permission of University of Miami - Rosenstiel School of Marine and Atmospheric Science for personal use, not for redistribution. The definitive version was published in Bulletin of Marine Science 81 (2007): 533-542.Three species of deep-sea corals were collected from several locations in the Hawaiian Archipelago. These species have been called "precious corals" because of their extensive use in the jewelry industry. Two octocorals Corallium lauuense Bayer, 1956 (red coral) and Corallium secundum Dana, 1846 (pink coral), and a zoanthid, Gerardia sp. (gold coral) collected between August and November in 1998-2004, were all histologically analysed for reproductive tissues. All three species of precious corals appear to be gonochoric (both males and females of all species being identified—though with C. lauuense more reproductive polyps are needed to conclusively confirm this), with the two species of Corallium having reproductive material contained within siphonozooids rather than the main polyp (autozoid). Maximum oocyte sizes were: Gerardia sp. ∼300 μm, C. secundum ∼600 μm, and C. lauuense ∼660 μm. All three species are hypothesized to have spawned during the collection season. Gerardia was observed spawning during collection, and histological sections of the two Corallium species show areas where gametes appear to be missing. Gerardia sp. has a single cohort of gametes developing, which may suggest seasonal reproduction, and the two Corallium species show multiple sizes present in single individuals, suggesting a periodic or quasi-continuous reproductive periodicity.This project was supported by ship time grants from the Hawaii Undersea Research Laboratory and Hawaii SeaGrant as well as National Oceanic and Atmospheric Administration’s Office of Ocean Exploration Award No. NA03OAR4600108. A.R.B. received support from an EPA STAR graduate research fellowship and a Woods Hole Oceanographic Institution postdoctoral scholarship

    Late childhood interpersonal callousness and conduct problem trajectories interact to predict adult psychopathy

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135659/1/jcpp12598_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/135659/2/jcpp12598.pd

    Implementing a screening programme for distress in cancer settings: Science and practice

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    Objective. Previous work has addressed the development and diagnostic validity testing of tools for measuring cancer-related distress. Relatively little has been published on the implementation of these tools in clinical practice. We aimed to review the findings of randomized and non-randomized trials of the effect of distress screening to identify the effectiveness and acceptability of screening programmes. Methods. A search was made of the Embase/ Medline and Web of knowledge abstract databases from inception to May 2012. Our inclusion criterion was randomized and non- randomized controlled trials concerning the effect of screening for psychological distress on patient and clinician reported outcomes. We included studies on quality of life. Results. We identified 21 qualifying studies. Twelve were randomized trials and nine were non-randomized trials of the effect of screening for psychological distress. Six randomized trials assigned patients to receive screening or no screening, the remainder randomized patients to receive feedback or no feedback of screening results. Only 6 of the randomized reported benefits (five as a direct result of screening), although an additional 8 non-randomized studies showed partial benefits. Most benefits were seen in domains of communication, clinician behaviour and patient referral. Acceptability of screening was high during funded screening implementation studies but mixed when incorporated into routine clinical care. Conclusions. Screening for distress has the potential to influence communication, clinician behaviour and patient referral and to a lesser extent recognition of distress and unmet needs. Barriers to implementation success include low staff confidence, lack of training and support, low acceptability and failure to tie treatment to the screening results. Further work needs to be conducted on the value of screening when incorporated into routine clinical care and into the most appropriate methods for studying the implementation of screening in clinical practice

    Thinking Well: a randomised controlled feasibility study of a new CBT therapy targeting reasoning biases in people with distressing persecutory delusional beliefs

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    Background and objectives Delusional beliefs with persecutory content are common in psychosis, but difficult to treat. Interventions targeting hypothesised causal and maintaining factors have been proposed as a way of improving therapy. The current study is a feasibility randomised controlled trial of the ‘Thinking Well (TW)’ intervention: This novel approach combines the recently developed Maudsley Review Training Programme (MRTP), with additional, focussed cognitive-behavioural therapy sessions. Methods 31 participants with distressing persecutory delusions and schizophrenia spectrum disorders were randomised to TW or to treatment as usual in a 2:1 ratio. Participants completed outcome assessments at 0 (baseline), 1 (post-MRTP), 6 (post-TW) and 8 (follow-up) weeks. Key outcomes included belief flexibility, paranoia, and delusional conviction and distress. Participants allocated to TW completed the MRTP package and four CBT sessions with a clinical psychologist. Results Recruitment proved feasible. Participants reported the intervention was relevant and had resulted in positive changes in thinking and mood, which they could use in everyday life. Treatment effects were moderate-large for key outcomes including belief flexibility, paranoia conviction and distress. The additional TW sessions appeared to confer benefits over MRTP alone. Limitations Assessments were not carried out blind to treatment condition. Recruitment was opportunistic, from an identified pool of research participants. Finally, a few participants had already completed the MRTP as part of a previous study. Conclusions The TW intervention appears to be feasible and acceptable to participants, and the effects of treatment are promising. A fully powered randomised controlled trial of the intervention is warranted

    Impact of Missing Data for Body Mass Index in an Epidemiologic Study

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    To assess the potential impact of missing data on body mass index (BMI) on the association between prepregnancy obesity and specific birth defects

    Linking Emergency Medical Services and Emergency Department Data to Improve Overdose Surveillance in North Carolina

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    Introduction Linking emergency medical services (EMS) data to emergency department (ED) data enables assessing the continuum of care and evaluating patient outcomes. We developed novel methods to enhance linkage performance and analysis of EMS and ED data for opioid overdose surveillance in North Carolina. Methods We identified data on all EMS encounters in North Carolina during January 1–November 30, 2017, with documented naloxone administration and transportation to the ED. We linked these data with ED visit data in the North Carolina Disease Event Tracking and Epidemiologic Collection Tool. We manually reviewed a subset of data from 12 counties to create a gold standard that informed developing iterative linkage methods using demographic, time, and destination variables. We calculated the proportion of suspected opioid overdose EMS cases that received International Classification of Diseases, Tenth Revision, Clinical Modification diagnosis codes for opioid overdose in the ED. Results We identified 12 088 EMS encounters of patients treated with naloxone and transported to the ED. The 12-county subset included 1781 linkage-eligible EMS encounters, with historical linkage of 65.4% (1165 of 1781) and 1.6% false linkages. Through iterative linkage methods, performance improved to 91.0% (1620 of 1781) with 0.1% false linkages. Among statewide EMS encounters with naloxone administration, the linkage improved from 47.1% to 91.1%. We found diagnosis codes for opioid overdose in the ED among 27.2% of statewide linked records. Practice Implications Through an iterative linkage approach, EMS–ED data linkage performance improved greatly while reducing the number of false linkages. Improved EMS–ED data linkage quality can enhance surveillance activities, inform emergency response practices, and improve quality of care through evaluating initial patient presentations, field interventions, and ultimate diagnoses

    Population Density and Seasonality Effects on Sin Nombre Virus Transmission in North American Deermice (Peromyscus maniculatus) in Outdoor Enclosures

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    Surveys of wildlife host-pathogen systems often document clear seasonal variation in transmission; conclusions concerning the relationship between host population density and transmission vary. In the field, effects of seasonality and population density on natural disease cycles are challenging to measure independently, but laboratory experiments may poorly reflect what happens in nature. Outdoor manipulative experiments are an alternative that controls for some variables in a relatively natural environment. Using outdoor enclosures, we tested effects of North American deermouse (Peromyscus maniculatus) population density and season on transmission dynamics of Sin Nombre hantavirus. In early summer, mid-summer, late summer, and fall 2007–2008, predetermined numbers of infected and uninfected adult wild deermice were released into enclosures and trapped weekly or bi-weekly. We documented 18 transmission events and observed significant seasonal effects on transmission, wounding frequency, and host breeding condition. Apparent differences in transmission incidence or wounding frequency between high- and low-density treatments were not statistically significant. However, high host density was associated with a lower proportion of males with scrotal testes. Seasonality may have a stronger influence on disease transmission dynamics than host population density, and density effects cannot be considered independent of seasonality

    Detecting Disease Outbreaks Using Local Spatiotemporal Methods

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    A real-time surveillance method is developed with emphasis on rapid and accurate detection of emerging outbreaks. We develop a model with relatively weak assumptions regarding the latent processes generating the observed data, ensuring a robust prediction of the spatiotemporal incidence surface. Estimation occurs via a local linear fitting combined with day-of-week effects, where spatial smoothing is handled by a novel distance metric that adjusts for population density. Detection of emerging outbreaks is carried out via residual analysis. Both daily residuals and AR model-based de-trended residuals are used for detecting abnormalities in the data given that either a large daily residual or an increasing temporal trend in the residuals signals a potential outbreak, with the threshold for statistical significance determined using a resampling approach
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