60 research outputs found

    Using the Capabilities-Opportunity-Motivation-Behavior (COM-B) System to Conceptualize the Legalization of Sunday Migratory Game Bird Hunting

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    Recent wildlife agency efforts aimed at hunter recruitment, retention, and reactivation (R3) are examples of behavior change interventions. Therefore, these R3 programs and policies should be strategically designed to meet hunters’ goals and motivations. We analyzed survey responses (n=808) from North Carolina resident migratory bird hunters regarding potential Sunday hunting legalization to serve as an illustrative case demonstrating how the capabilities-opportunity-motivation-behavior (COM-B) system can be used to conceptualize and more effectively test potential hunter behavior changes prompted by debated R3 strategies. Findings provide decision-makers and land managers with an understanding of the potential implications of migratory game bird Sunday hunting legalization, which offers insights into the types of interventions that may be most effective for increasing hunter participation

    Texas Stakeholders’ Knowledge and Perceptions of Chronic Wasting Disease Risks: Implications for Wildlife Agency Communications

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    Chronic wasting disease (CWD) is a fatal neurological disease impacting cervids. The disease can move swiftly through populations, making CWD management a priority for wildlife agencies across the United States. Stakeholder perceptions of CWD may shape behaviors that can negatively impact wildlife agencies. Thus, agencies need comprehensive assessments of stakeholder risk perceptions and enhanced understandings of how perceptions are formed to improve communications. Using a mail- and online-based questionnaire to collect data from September 2020 through January 2021, we surveyed 503 hunters throughout the state of Texas, USA, and 481 Texas landowners who owned property in CWD-affected counties to better understand risk perceptions, knowledge of CWD, and relationships between both elements. Furthermore, we compared risk perceptions across multiple host types and wildlife-related diseases. We documented frequent “don’t know” responses across perceptions and found a negative or no relationship between factual knowledge and risk perceptions, context dependent. As such, results suggest wildlife agencies should consider communications that emphasize actionable knowledge to better encourage preventive action

    A Gendered Environmental Justice Perspective of Tiger Reintroductions to Sariska Tiger Reserve

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    The reintroduction of Bengal tigers (Panthera tigris tigris) to the Sariska Tiger Reserve in Rajasthan, India, has resulted in perceived increases of human-wildlife conflict for local villagers. Because previous evidence from other settings suggests that women may experience human-wildlife conflict differently than men, this research employed a comprehensive environmental justice framework to explore how women have been uniquely impacted by tiger reintroductions. Findings from focus group discussions with villagers suggest that women bear greater burdens from increased tiger presence, yet these costs are not typically acknowledged by men, and women do not feel that their perspectives were considered in the reintroduction process. Viewing human-tiger conflict through an environmental justice lens allows us to offer socially-oriented mitigation recommendations, such as empowering local women to engage in self- organized activism

    Viewing Bornean Human–Elephant Conflicts Through an Environmental Justice Lens

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    Sabah, on the northeastern corner of Borneo, is concurrently Malaysia’s largest producer of oil palm (Elaeis guineensis) and home to the endangered Bornean elephants (Elephas maximus borneensis; elephants). Concomitantly, Sabah has been experiencing increasing and unsustainable human–elephant conflicts (HECs), which have not been thoroughly investigated from a human dimensions standpoint. To address this void, in March 2019, we conducted semi-structured interviews with 37 villagers located in the Sabah districts of Lahad Datu, Tawau, and Telupid to investigate villager cognitions regarding elephants, behaviors toward elephants, the formal and informal village institutions employed to mediate HECs, and the future viability of human–elephant coexistence. Respondents highlighted emotions of fear, anger, and frustration over crop and property damage that villagers were unable to effectively mitigate employing traditional institutions and strategies. Although negative emotions were somewhat tempered by the cultural significance of elephants, respondents indicated that coexistence with elephants remains challenging and is likely only viable under certain conditions: domestication of elephants, if elephants no longer destroyed crops, and/or if elephants were provided separate forested habitat away from humans. Our results demonstrated that elephant conservation in Sabah is viewed as a “not in my backyard” claim, which can hint at the presence of environmental injustice. We further examined Sabah HECs using an environmental justice framework and concluded that HEC as an environmental justice problem requires traditional fixes to be merged with more extensive, sustainable solutions that improve stakeholder agency

    Metabolic markers of short and long-term exogenous DL-beta-hydroxybutyrate supplementation in episodic migraine patients: an exploratory analysis of a randomized-controlled-trial

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    Background: Emerging findings propose that the pathophysiology of migraine may be associated with dysfunctional metabolic mechanisms. Recent findings suggest that migraine attacks are a response to the cerebral energy deficit, and ingestion of ketone bodies stabilizes the generation of a migraine attack. Based on these findings, ketone body supplementation is postulated as a prophylactic treatment approach to restore cerebral metabolism deficiency. Metabolic markers are unexplored after exogenous ketone body supplementation in episodic migraineurs. Therefore, the present single-arm uncontrolled explorative analysis evaluated blood ketone body and glucose concentration after short and long-term 6 g exogenous DL-Mg-Ca-beta-hydroxybutyrate (DL-ÎČHB) supplementation.Methods: The presented data are part of the MigraKet randomized-control cross-over clinical trial of 41 episodic migraineurs (Number NCT03132233). Patients were given a single dose of 6 g DL-ÎČHB. Ketone body and glucose blood concentration were assessed before intake, 20, and 40 min after DL-ÎČHB intake. Ketone body, glucose concentration and glycated hemoglobin values were evaluated after 12 weeks of 18 g DL-ÎČHB ingestion (total dose), taken three times daily (6g/dose; 3x/day). Linear models explored the association between the ketone body and glucose levels.Results: Ketone body concentration increased within-group to a mean of 0.46 (0.30) mmol/L after 40 min post- DL-ÎČHB supplementation [estimate = 0.24 mmol/L, CI = (0.20.0.27), p < 0.01]. This within-group increase of ketone body concentration did not change after repeated daily intake of DL-ÎČHB supplementation over 12 weeks [estimate = 0.00 mmol/L, CI = (−0.03.0.04), p = 0.794]. DL-ÎČHB intake significantly reduced blood glucose concentration within-group from a mean baseline of 4.91 (0.42) mmol/L to 4.75 (0.47) mmol/L 40 min post-DL-ÎČHB supplementation [estimate = −0.16 mmol/L, CI = (−0.15, 0.03), p < 0.01]. Repeated DL-ÎČHB supplementation for 12 weeks showed no change within-group in acute ketone bodies concentration [estimate = 0.00 mmol/L, CI = (−0.03.0.04), p = 0.794] and in the HbA1c value [estimate = 0.02, CI = (−0.07.0.11), p = 0.69].Conclusion: A single dose of 6 g DL-ÎČHB significantly elevated blood ketone bodies and decreased blood glucose concentration within-group in episodic migraineurs. Long-term DL-ÎČHB supplementation for 12 weeks showed no effect within-group on acute ketone body concentration and had not impact on HbA1c. The elevation of the ketone body concentration was moderate, indicating that nutritional ketosis was not reached. Therefore, a dose higher than 6 g of DL-ÎČHB is required to reach the nutritional level of ketosis. ClinicalTrials.gov Identifier: NCT03132233

    A C6orf10/LOC101929163 locus is associated with age of onset in C9orf72 carriers

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    Frontotemporal dementia and its subtypes: a genome-wide association study

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    SummaryBackground Frontotemporal dementia (FTD) is a complex disorder characterised by a broad range of clinical manifestations, differential pathological signatures, and genetic variability. Mutations in three genes—MAPT, GRN, and C9orf72—have been associated with FTD. We sought to identify novel genetic risk loci associated with the disorder. Methods We did a two-stage genome-wide association study on clinical FTD, analysing samples from 3526 patients with {FTD} and 9402 healthy controls. To reduce genetic heterogeneity, all participants were of European ancestry. In the discovery phase (samples from 2154 patients with {FTD} and 4308 controls), we did separate association analyses for each {FTD} subtype (behavioural variant FTD, semantic dementia, progressive non-fluent aphasia, and {FTD} overlapping with motor neuron disease FTD-MND), followed by a meta-analysis of the entire dataset. We carried forward replication of the novel suggestive loci in an independent sample series (samples from 1372 patients and 5094 controls) and then did joint phase and brain expression and methylation quantitative trait loci analyses for the associated (p<5 × 10−8) single-nucleotide polymorphisms. Findings We identified novel associations exceeding the genome-wide significance threshold (p<5 × 10−8). Combined (joint) analyses of discovery and replication phases showed genome-wide significant association at 6p21.3, \{HLA\} locus (immune system), for rs9268877 (p=1·05 × 10−8; odds ratio=1·204 95% \{CI\} 1·11–1·30), rs9268856 (p=5·51 × 10−9; 0·809 0·76–0·86) and rs1980493 (p value=1·57 × 10−8, 0·775 0·69–0·86) in the entire cohort. We also identified a potential novel locus at 11q14, encompassing RAB38/CTSC (the transcripts of which are related to lysosomal biology), for the behavioural \{FTD\} subtype for which joint analyses showed suggestive association for rs302668 (p=2·44 × 10−7; 0·814 0·71–0·92). Analysis of expression and methylation quantitative trait loci data suggested that these loci might affect expression and methylation in cis. Interpretation Our findings suggest that immune system processes (link to 6p21.3) and possibly lysosomal and autophagy pathways (link to 11q14) are potentially involved in FTD. Our findings need to be replicated to better define the association of the newly identified loci with disease and to shed light on the pathomechanisms contributing to FTD. Funding The National Institute of Neurological Disorders and Stroke and National Institute on Aging, the Wellcome/MRC Centre on Parkinson's disease, Alzheimer's Research UK, and Texas Tech University Health Sciences Center

    Exploring Cosmic Origins with CORE: Cosmological Parameters

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    We forecast the main cosmological parameter constraints achievable with theCORE space mission which is dedicated to mapping the polarisation of the CosmicMicrowave Background (CMB). CORE was recently submitted in response to ESA'sfifth call for medium-sized mission proposals (M5). Here we report the resultsfrom our pre-submission study of the impact of various instrumental options, inparticular the telescope size and sensitivity level, and review the great,transformative potential of the mission as proposed. Specifically, we assessthe impact on a broad range of fundamental parameters of our Universe as afunction of the expected CMB characteristics, with other papers in the seriesfocusing on controlling astrophysical and instrumental residual systematics. Inthis paper, we assume that only a few central CORE frequency channels areusable for our purpose, all others being devoted to the cleaning ofastrophysical contaminants. On the theoretical side, we assume LCDM as ourgeneral framework and quantify the improvement provided by CORE over thecurrent constraints from the Planck 2015 release. We also study the jointsensitivity of CORE and of future Baryon Acoustic Oscillation and Large ScaleStructure experiments like DESI and Euclid. Specific constraints on the physicsof inflation are presented in another paper of the series. In addition to thesix parameters of the base LCDM, which describe the matter content of aspatially flat universe with adiabatic and scalar primordial fluctuations frominflation, we derive the precision achievable on parameters like thosedescribing curvature, neutrino physics, extra light relics, primordial heliumabundance, dark matter annihilation, recombination physics, variation offundamental constants, dark energy, modified gravity, reionization and cosmicbirefringence. (ABRIDGED

    Common variants in Alzheimer’s disease and risk stratification by polygenic risk scores

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    Funder: Funder: Fundación bancaria ‘La Caixa’ Number: LCF/PR/PR16/51110003 Funder: Grifols SA Number: LCF/PR/PR16/51110003 Funder: European Union/EFPIA Innovative Medicines Initiative Joint Number: 115975 Funder: JPco-fuND FP-829-029 Number: 733051061Genetic discoveries of Alzheimer's disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all available case-control datasets and by-proxy study results (discovery n = 409,435 and validation size n = 58,190). Here, we add six variants associated with Alzheimer's disease risk (near APP, CHRNE, PRKD3/NDUFAF7, PLCG2 and two exonic variants in the SHARPIN gene). Assessment of the polygenic risk score and stratifying by APOE reveal a 4 to 5.5 years difference in median age at onset of Alzheimer's disease patients in APOE ɛ4 carriers. Because of this study, the underlying mechanisms of APP can be studied to refine the amyloid cascade and the polygenic risk score provides a tool to select individuals at high risk of Alzheimer's disease

    2021 Taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales.

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    Correction to: 2021 Taxonomic update of phylum Negarnaviricota (Riboviria: Orthornavirae), including the large orders Bunyavirales and Mononegavirales. Archives of Virology (2021) 166:3567–3579. https://doi.org/10.1007/s00705-021-05266-wIn March 2021, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. The phylum was expanded by four families (Aliusviridae, Crepuscuviridae, Myriaviridae, and Natareviridae), three subfamilies (Alpharhabdovirinae, Betarhabdovirinae, and Gammarhabdovirinae), 42 genera, and 200 species. Thirty-nine species were renamed and/or moved and seven species were abolished. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.This work was supported in part through Laulima Government Solutions, LLC prime contract with the US National Institute of Allergy and Infectious Diseases (NIAID) under Contract No. HHSN272201800013C. J.H.K. performed this work as an employee of Tunnell Government Services (TGS), a subcontractor of Laulima Government Solutions, LLC under Contract No. HHSN272201800013C. This work was also supported in part with federal funds from the National Cancer Institute (NCI), National Institutes of Health (NIH), under Contract No. 75N91019D00024, Task Order No. 75N91019F00130 to I.C., who was supported by the Clinical Monitoring Research Program Directorate, Frederick National Lab for Cancer Research. This work was also funded in part by Contract No. HSHQDC-15-C-00064 awarded by DHS S&T for the management and operation of The National Biodefense Analysis and Countermeasures Center, a federally funded research and development center operated by the Battelle National Biodefense Institute (V.W.); and NIH contract HHSN272201000040I/HHSN27200004/D04 and grant R24AI120942 (N.V., R.B.T.). S.S. acknowledges partial support from the Special Research Initiative of Mississippi Agricultural and Forestry Experiment Station (MAFES), Mississippi State University, and the National Institute of Food and Agriculture, US Department of Agriculture, Hatch Project 1021494. Part of this work was supported by the Francis Crick Institute which receives its core funding from Cancer Research UK (FC001030), the UK Medical Research Council (FC001030), and the Wellcome Trust (FC001030).S
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