167 research outputs found

    Increasing Entrepreneurship in Agriculture in an Economically Depressed Region

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    The article describes the purpose, conception, development, implementation, and evaluation of a series of workshops to support small/medium farms in a five-county area of northeastern North Carolina. Each of the workshops had a variety of topics to interest small and medium-sized farmers or those entering agriculture or agribusiness fields. The workshops, under a grant by the Golden Leaf Foundation, were to spur entrepreneurship within a rural, economically depressed region and implemented by an alliance of the Pasquotank County Center of the North Carolina Cooperative Extension Service and the School of Business & Economics at Elizabeth City State University

    White Light Flare Continuum Observations with ULTRACAM

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    We present sub-second, continuous-coverage photometry of three flares on the dM3.5e star, EQ Peg A, using custom continuum filters with WHT/ULTRACAM. These data provide a new view of flare continuum emission, with each flare exhibiting a very distinct light curve morphology. The spectral shape of flare emission for the two large-amplitude flares is compared with synthetic ULTRACAM measurements taken from the spectra during the large 'megaflare' event on a similar type flare star. The white light shape during the impulsive phase of the EQ Peg flares is consistent with the range of colors derived from the megaflare continuum, which is known to contain a Hydrogen recombination component and compact, blackbody-like components. Tentative evidence in the ULTRACAM photometry is found for an anti-correlation between the emission of these components.Comment: 8 pages, 3 figures. Proceedings of the 16th Workshop on Cool Stars, Stellar Systems, and the Sun (PASP conference series, in press

    Sharing behavior in emergencies: An instantiation of a utility-focused prototype of a secure mobile near-real-time content device in pre-hospital and hospital settings

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    The implementation of healthcare information technology largely exhibits a ‘lack of fit’ with medical practice workflow, especially when data collection devices interfere with care during emergencies. Employing the design science paradigm and interpretive theory building, we examine the credibility, utility, and sharing of near-auto generated, near-real-time content regarding motor vehicle accidents. We began constructing a mobile security information model and building a mobile prototype to study the dynamics of contents sharing in the pre-hospital and hospital settings. From our focus group interviews, we learned that the most valuable feature of the prototype was the ability to capture and transmit data, audio, photo, and video contents prior to the arrival of the patient to the hospital: contents that inform clinical decisions regarding diagnostic preparedness, triaging, and therapeutic activities. We theorize that a credible content incentivizes sharing attitude and instrumental use which influence sharing behavior. We plan further observations to refine the proposition

    Impact Evaluation of the SADA Millennium Villages Project in Northern Ghana: Endline Summary Report

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    The Millennium Villages Project (MVP) aims to demonstrate how the Millennium Development Goals (MDGs) could be achieved locally through an integrated approach to development. While the MDGs have now been superseded by the Sustainable Development Goals (SDGs, 2016–30), there remains a consistent thread to the MDGs around issues such as eradicating poverty, preventing avoidable deaths and improving education. Furthermore, the interconnected nature of the SDGs means the MVP model also has relevance for those seeking to address extreme poverty by taking an integrated approach to sustainable development. This report summarises the findings from what we believe to be the first independent impact evaluation of the MVP approach. It is hoped that the evidence and analysis will be of relevance to a wide range of actors in international development.Department for International Development (DFID

    Genotypic and antimicrobial characterisation of Propionibacterium acnes isolates from surgically excised lumbar disc herniations

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    The anaerobic skin commensal Propionibacterium acnes is an underestimated cause of human infections and clinical conditions. Previous studies have suggested a role for the bacterium in lumbar disc herniation and infection. To further investigate this, five biopsy samples were surgically excised from each of 64 patients with lumbar disc herniation. P. acnes and other bacteria were detected by anaerobic culture, followed by biochemical and PCR-based identification. In total, 24/64 (38%) patients had evidence of P. acnes in their excised herniated disc tissue. Using recA and mAb typing methods, 52% of the isolates were type II (50% of culture-positive patients), while type IA strains accounted for 28% of isolates (42% patients). Type III (11% isolates; 21% patients) and type IB strains (9% isolates; 17% patients) were detected less frequently. The MIC values for all isolates were lowest for amoxicillin, ciprofloxacin, erythromycin, rifampicin, tetracycline, and vancomycin (≤1mg/L). The MIC for fusidic acid was 1-2 mg/L. The MIC for trimethoprim and gentamicin was 2 to ≥4 mg/L. The demonstration that type II and III strains, which are not frequently recovered from skin, predominated within our isolate collection (63%) suggests that the role of P. acnes in lumbar disc herniation should not be readily dismissed. © 2013 Jess Rollason et al

    The Pure Virtual Braid Group Is Quadratic

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    If an augmented algebra K over Q is filtered by powers of its augmentation ideal I, the associated graded algebra grK need not in general be quadratic: although it is generated in degree 1, its relations may not be generated by homogeneous relations of degree 2. In this paper we give a sufficient criterion (called the PVH Criterion) for grK to be quadratic. When K is the group algebra of a group G, quadraticity is known to be equivalent to the existence of a (not necessarily homomorphic) universal finite type invariant for G. Thus the PVH Criterion also implies the existence of such a universal finite type invariant for the group G. We apply the PVH Criterion to the group algebra of the pure virtual braid group (also known as the quasi-triangular group), and show that the corresponding associated graded algebra is quadratic, and hence that these groups have a (not necessarily homomorphic) universal finite type invariant.Comment: 53 pages, 15 figures. Some clarifications added and inaccuracies corrected, reflecting suggestions made by the referee of the published version of the pape

    Spinning Particles, Braid Groups and Solitons

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    We develop general techniques for computing the fundamental group of the configuration space of nn identical particles, possessing a generic internal structure, moving on a manifold MM. This group generalizes the nn-string braid group of MM which is the relevant object for structureless particles. In particular, we compute these generalized braid groups for particles with an internal spin degree of freedom on an arbitrary MM. A study of their unitary representations allows us to determine the available spectrum of spin and statistics on MM in a certain class of quantum theories. One interesting result is that half-integral spin quantizations are obtained on certain manifolds having an obstruction to an ordinary spin structure. We also compare our results to corresponding ones for topological solitons in O(d+1)O(d+1)-invariant nonlinear sigma models in (d+1)(d+1)-dimensions, generalizing recent studies in two spatial dimensions. Finally, we prove that there exists a general scalar quantum theory yielding half-integral spin for particles (or O(d+1)O(d+1) solitons) on a closed, orientable manifold MM if and only if MM possesses a spinc{\rm spin}_c structure.Comment: harvmac, 34 pages, HUTP-93/A037; UICHEP-TH/93-18; BUHEP-93-2

    How surgical Trainee Research Collaboratives achieve success: a mixed methods study to develop trainee engagement strategies

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    OBJECTIVES: This study aimed to understand the role of surgical Trainee Research Collaboratives (TRCs) in conducting randomised controlled trials and identify strategies to enhance trainee engagement in trials. DESIGN: This is a mixed methods study. We used observation of TRC meetings, semi-structured interviews and an online survey to explore trainees' motivations for engagement in trials and TRCs, including barriers and facilitators. Interviews were analysed thematically, alongside observation field notes. Survey responses were analysed using descriptive statistics. Strategies to enhance TRCs were developed at a workshop by 13 trial methodologists, surgical trainees, consultants and research nurses. SETTING: This study was conducted within a secondary care setting in the UK. PARTICIPANTS: The survey was sent to registered UK surgical trainees. TRC members and linked stakeholders across surgical specialties and UK regions were purposefully sampled for interviews. RESULTS: We observed 5 TRC meetings, conducted 32 semi-structured interviews and analysed 73 survey responses. TRCs can mobilise trainees thus gaining wider access to patients. Trainees engaged with TRCs to improve patient care, surgical evidence and to help progress their careers. Trainees valued the TRC infrastructure, research expertise and mentoring. Challenges for trainees included clinical and other priorities, limited time and confidence, and recognition, especially by authorship. Key TRC strategies were consultant support, initial simple rapid studies, transparency of involvement and recognition for trainees (including authorship policies) and working with Clinical Trials Units and research nurses. A 6 min digital story on YouTube disseminated these strategies. CONCLUSION: Trainee surgeons are mostly motivated to engage with trials and TRCs. Trainee engagement in TRCs can be enhanced through building relationships with key stakeholders, maximising multi-disciplinary working and offering training and career development opportunities

    How surgical trainee research collaboratives achieve success: a mixed methods study to develop trainee engagement strategies

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    Objectives: This study aimed to understand the role of surgical Trainee Research Collaboratives (TRCs) in conducting randomised controlled trials and identify strategies to enhance trainee engagement in trials. Design: This is a mixed methods study. We used observation of TRC meetings, semi-structured interviews and an online survey to explore trainees’ motivations for engagement in trials and TRCs, including barriers and facilitators. Interviews were analysed thematically, alongside observation field notes. Survey responses were analysed using descriptive statistics. Strategies to enhance TRCs were developed at a workshop by 13 trial methodologists, surgical trainees, consultants and research nurses. Setting: This study was conducted within a secondary care setting in the UK. Participants: The survey was sent to registered UK surgical trainees. TRC members and linked stakeholders across surgical specialties and UK regions were purposefully sampled for interviews. Results: We observed 5 TRC meetings, conducted 32 semi-structured interviews and analysed 73 survey responses. TRCs can mobilise trainees thus gaining wider access to patients. Trainees engaged with TRCs to improve patient care, surgical evidence and to help progress their careers. Trainees valued the TRC infrastructure, research expertise and mentoring. Challenges for trainees included clinical and other priorities, limited time and confidence, and recognition, especially by authorship. Key TRC strategies were consultant support, initial simple rapid studies, transparency of involvement and recognition for trainees (including authorship policies) and working with Clinical Trials Units and research nurses. A 6 min digital story on YouTube disseminated these strategies. Conclusion: Trainee surgeons are mostly motivated to engage with trials and TRCs. Trainee engagement in TRCs can be enhanced through building relationships with key stakeholders, maximising multi-disciplinary working and offering training and career development opportunities
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