703 research outputs found

    Lock\u27em up and throw away the key: racial attitudes and the structural determinants of support for crime policy among white Americans

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    This study investigates support for the death penalty and federal crime spending among white Americans. Data from the American National Election Studies (ANES) series (1992-2000) are matched with census tract level indicators of demographic and community characteristics from the 1990 and 2000 Census Bureau Summary File Tape 3A and county level crime data supplied by the Federal Bureau of Investigation�s Uniform Crime Reports (UCR). Ordered logistic regression is used to investigate five general research questions: (1) Are racial attitudes the most salient individual level predictors of support for crime policy among whites as suggested by prior research? (2) Are whites� crime policy preferences influenced by the structural environment? (3) Is the relationship between key individual level variables (i.e. racial attitudes) and support for crime policy moderated by features of the community? (4) Does fear of crime influence white support for crime policy? (5) Are there different explanatory models of white support for the death penalty and federal crime spending? The results of the study show whites� racial attitudes are strong predictors of white support for the death penalty and federal crime spending. Overall, structural conditions do not shape white support for the death penalty. On the other hand, whites� crime spending preferences are influenced by the racial context of the community. Whites living in more racially segregated communities are less supportive of increased crime spending. Turning to the interaction results, the relationship between whites� racial attitudes and support for the death penalty is mediated by features of the community (i.e. racial composition, segregation, deprivation). In general, interaction effects are not present in the crime spending models. The fear of crime models show fear is related to white support of crime spending but is not associated with support for the death penalty. In sum, these findings suggest further investigation of white support for crime policy is warranted

    Substance Use-Related Brief Interventions With Emergency Department Patients Reduce Mental Health Co-Morbidities

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    Background: Research on screening and brief interventions (SBIs) has shown that, in addition to reducing alcohol use, interventions delivered in healthcare settings can reduce trauma readmissions, hospitalization days, driving offenses, and future healthcare utilization and costs. Mental health co-morbidities often accompany unhealthy alcohol and drug use, but few studies have examined the impact of SBIs on the mental health of patients. The present study determined if SBIs focused on reducing alcohol or drug use affected the mental health status of patients at a six-month follow-up. Methods: Participants (N=1152) were randomly sampled from patients receiving SBIs for at-risk alcohol or drug use after presenting to one of two urban emergency departments (EDs) in Georgia. Telephone follow-up interviews were completed with 698 of the original participants at six months after the intervention. Mental health co-morbidities were measured at both time points using the Global Assessment of Individual Needs Short Screener (GAIN-SS) and the SF-12. Analyses were conducted using paired samples t-tests. Results: Analyses found significant reductions in the percentage of patients reporting feelings of anxiety (45% to 33%, p\u3c0.001), depression (52% to 37%, p\u3c0.001), and suicidal ideation (13% to 8%, p\u3c0.001) as well as improvements in global mental health measures (SF12 mental health score and internalizing and externalizing subscales of the GAIN-SS). Conclusions: Six months after receiving SBIs for alcohol and drug use in EDs, several measures of the mental health of participants showed significant improvements. Widespread implementation of SBIs in Georgia\u27s EDs may affect a broad array of public health concerns, including mental health

    State policy influence on the early diffusion of buprenorphine in community treatment programs

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    <p>Abstract</p> <p>Background</p> <p>Buprenorphine was approved for use in the treatment of opioid dependence in 2002, but its diffusion into everyday clinical practice in community-based treatment programs has been slow. This study examines the net impact of efforts by state agencies, including provision of Medicaid coverage, on program-level adoption of buprenorphine as of 2006.</p> <p>Methods</p> <p>Interviews were conducted with key informants in 49 of the 50 state agencies with oversight responsibility for addiction treatment services. Information from these interviews was integrated with organizational data from the 2006 National Survey of Substance Abuse Treatment Services. A multivariate logistic regression model was estimated to identify the effects of state efforts to promote the use of this medication, net of a host of organizational characteristics.</p> <p>Results</p> <p>The availability of Medicaid coverage for buprenorphine was a significant predictor of its adoption by treatment organizations.</p> <p>Conclusion</p> <p>Inclusion of buprenorphine on state Medicaid formularies appears to be a key element in ensuring that patients have access to this state-of-the-art treatment option. Other potential barriers to the diffusion of buprenorphine require identification, and the value of additional state-level policies to promote its use should be evaluated.</p

    Autoimmune Theories of Chronic Spontaneous Urticaria

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    Urticaria (hives) is a highly prevalent skin disorder that can occur with or without associated angioedema. Chronic spontaneous urticaria (CSU) is a condition which persists for more than 6 weeks in duration and occurs in the absence of an identifiable provoking factor. CSU results from pathogenic activation of mast cells and basophils, which gives rise to the release of proinflammatory mediators that support the generation of urticaria. Several theories have been put forth regarding the pathogenesis of CSU with much evidence pointing toward a potential autoimmune etiology in up to 50% of patients with this condition. In this review, we highlight the evidence surrounding the autoimmune pathogenesis of chronic urticaria including recent data which suggests that CSU may involve contributions from both immunoglobin G (IgG)-specific and immunoglobulin E (IgE)-specific autoantibodies against a vast array of antigens that can span beyond those found on the surface of mast cells and basophils

    The growing and vital role of botanical gardens in climate change research.

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    Botanical gardens make unique contributions to climate change research, conservation, and public engagement. They host unique resources, including diverse collections of plant species growing in natural conditions, historical records, and expert staff, and attract large numbers of visitors and volunteers. Networks of botanical gardens spanning biomes and continents can expand the value of these resources. Over the past decade, research at botanical gardens has advanced our understanding of climate change impacts on plant phenology, physiology, anatomy, and conservation. For example, researchers have utilized botanical garden networks to assess anatomical and functional traits associated with phenological responses to climate change. New methods have enhanced the pace and impact of this research, including phylogenetic and comparative methods, and online databases of herbarium specimens and photographs that allow studies to expand geographically, temporally, and taxonomically in scope. Botanical gardens have grown their community and citizen science programs, informing the public about climate change and monitoring plants more intensively than is possible with garden staff alone. Despite these advances, botanical gardens are still underutilized in climate change research. To address this, we review recent progress and describe promising future directions for research and public engagement at botanical gardens.Publisher versio

    Unravelling morphoea aetiopathogenesis by next-generation sequencing of paired skin biopsies

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    BACKGROUND: Morphoea can have a significant disease burden. Aetiopathogenesis remains poorly understood, with very limited existing genetic studies. Linear morphoea (LM) may follow Blascho's lines of epidermal development, providing potential pathogenic clues. OBJECTIVE: The first objective of this study was to identify the presence of primary somatic epidermal mosaicism in LM. The second objective was tTo explore differential gene expression in morphoea epidermis and dermis to identify potential pathogenic molecular pathways and tissue layer cross-talk. METHODOLOGY: Skin biopsies from paired affected and contralateral unaffected skin were taken from 16 patients with LM. Epidermis and dermis were isolated using a 2-step chemical-physical separation protocol. Whole Genome Sequencing (WGS; n = 4 epidermal) and RNA-seq (n = 5-epidermal, n = 5-dermal) with gene expression analysis via GSEA-MSigDBv6.3 and PANTHER-v14.1 pathway analyses, were performed. RTqPCR and immunohistochemistry were used to replicate key results. RESULTS: Sixteen participants (93.8% female, mean age 27.7 yrs disease-onset) were included. Epidermal WGS identified no single affected gene or SNV. However, many potential disease-relevant pathogenic variants were present, including ADAMTSL1 and ADAMTS16. A highly proliferative, inflammatory and profibrotic epidermis was seen, with significantly-overexpressed TNFα-via-NFkB, TGFβ, IL6/JAKSTAT and IFN-signaling, apoptosis, p53 and KRAS-responses. Upregulated IFI27 and downregulated LAMA4 potentially represent initiating epidermal 'damage' signals and enhanced epidermal-dermal communication. Morphoea dermis exhibited significant profibrotic, B-cell and IFN-signatures, and upregulated morphogenic patterning pathways such as Wnt. CONCLUSION: This study supports the absence of somatic epidermal mosaicism in LM, and identifies potential disease-driving epidermal mechanisms, epidermal-dermal interactions and disease-specific dermal differential-gene-expression in morphoea. We propose a potential molecular narrative for morphoea aetiopathogenesis which could help guide future targeted studies and therapies

    Creative Citizen Science Illuminates Complex Ecological Responses to Climate Change

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    Climate change is causing the timing of key behaviors (i.e., phenology) to shift differently across trophic levels and among some interacting organisms (e.g., plants and pollinators, predators and prey), suggesting that interactions among species are being disrupted (1, 2). Studying the phenology of interactions, however, is difficult, which has limited researchers’ ability to zero in on changes in specific interactions or on the consequences of mismatches. In PNAS, Hassall et al. (3) use a combination of citizen science techniques to investigate the effects of climate change on dozens of specific interactions. They focus on a Batesian mimicry complex involving stinging bees and wasps, stingless syrphid flies (also known as hoverflies) that mimic their appearance, and avian predators. The methods used by Hassall et al. (3) continue an upsurge of innovations in climate change ecology research, in which the role of citizen science is expanding to provide new approaches to complex challenges

    Anti-Trichomonas vaginalis activity of marine-associated fungi from the South Brazilian Coast

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    AbstractTrichomonas vaginalis is the causative agent of trichomonosis, the most common non-viral sexually transmitted disease. Infection with this protozoan may have serious consequences, especially for women. Currently, 5-nitroimidazole drugs are the treatment of choice for trichomonosis, but the emergence of resistance has limited the effectiveness of this therapy. In this context, this study aimed to evaluate the anti-T. vaginalis activity of marine-associated fungi found in the South Brazilian Coast. A total of 42 marine-associated fungal species (126 filtrate samples) isolated from 39 different marine organisms, mainly sponges, were selected to be screened against T. vaginalis. Of these, two filtrate samples from Hypocrea lixii F02 and Penicillium citrinum F40 showed significant growth-inhibitory activity (up to 100%) against ATCC 30236 and fresh clinical isolates, including a metronidazole-resistant isolate. Minimum inhibitory concentration (MIC) values of H. lixii F02 and P. citrinum F40 samples for all isolates tested, including the metronidazole-resistant isolate, were 2.5mg/mL. The kinetic growth curve showed that the filtrate samples were able to reduce the density of parasites to zero within 24h of incubation, which was confirmed by microscopy. Both fungal filtrate samples exhibited no hemolytic activity, and the P. citrinum F40 filtrate sample showed low cytotoxicity against Vero cells. These data suggest that marine-associated fungi from the South Brazilian Coast may produce potential candidates for further investigation and possible use in the treatment of metronidazole-resistant trichomonosis

    The Case for a Low Extragalactic Gamma-ray Background

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    Measurements of the diffuse extragalactic gamma-ray background (EGRB) are complicated by a strong Galactic foreground. Estimates of the EGRB flux and spectrum, obtained by modeling the Galactic emission, have produced a variety of (sometimes conflicting) results. The latest analysis of the EGRET data found an isotropic flux I_x=1.45+-0.05 above 100 MeV, in units of 10^-5 s^-1 cm^-2 sr^-1. We analyze the EGRET data in search for robust constraints on the EGRB flux, finding the gamma-ray sky strongly dominated by Galactic foreground even at high latitudes, with no conclusive evidence for an additional isotropic component. The gamma-ray intensity measured towards the Galactic poles is similar to or lower than previous estimates of I_x. The high latitude profile of the gamma-ray data is disk-like for 40<|b[deg]|<70, and even steeper for |b|>70; overall it exhibits strong Galactic features and is well fit by a simple Galactic model. Based on the |b|>40 data we find that I_x<0.5 at a 99% confidence level, with evidence for a much lower flux. We show that correlations with Galactic tracers, previously used to identify the Galactic foreground and estimate I_x, are not satisfactory; the results depend on the tracers used and on the part of the sky examined, because the Galactic emission is not linear in the Galactic tracers and exhibits spectral variations across the sky. The low EGRB flux favored by our analysis places stringent limits on extragalactic scenarios involving gamma-ray emission, such as radiation from blazars, intergalactic shocks and production of ultra-high energy cosmic rays and neutrinos. We suggest methods by which future gamma-ray missions such as GLAST and AGILE could indirectly identify the EGRB.Comment: Accepted for publication in JCAP. Increased sizes of polar regions examined, and added discussion of spectral data. Results unchange
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