7,279 research outputs found

    Torsion points on elliptic curves over number fields of small degree

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    We determine the set S(d)S(d) of possible prime orders of KK-rational points on elliptic curves over number fields KK of degree dd, for d=4,5d = 4,5 and 66

    New Records for \u3ci\u3eEuhrychiopsis Lecontei\u3c/i\u3e (Coleoptera: Curculionidae) and Their Densities in Wisconsin Lakes

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    The native aquatic weevil, Euhrychiopsis lecontei is currently being researched as a potential biological control for the exotic aquatic macrophyte Eurasian watermilfoil (Myriophyllum spicatum), yet little is known about its specific distribution in North America. In this study, E. lecontei was collected in 25 of 27 lakes surveyed for the weevil in Wisconsin, greatly increasing the known distribution of the species in this state. E. lecontei densities evaluated in 14 Wisconsin lakes ranged from \u3c0.01 to 1.91 weevils per apical stem of milfoil. These new records indicate that E. lecontei is widespread throughout Wisconsin and is associated with natural declines of M. spicatum in some lakes. Additional sampling for E. lecontei and research on its ecology and life history are needed to understand the role of this organism in aquatic ecosystems

    Temporal and spatial changes in milfoil distribution and biomass associated with weevils in Fish Lake, WI

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    During the course of an eight year monitoring effort, the Wisconsin Department of Natural Resources documented a significant decline in milfoil biomass and distribution in Fish Lake, Wisconsin. Average milfoil biomass declined by 40- 50% from 374-524 g dw m -2 during 1991-93 to 265 g dw m -2 during both 1994 and 1995. Milfoil recovered fully in 1996- 98 to 446- 564 g dw m -2 . The size of the milfoil bed, as discerned from aerial photographs, shrank from a maximum coverage of 40 ha in 1991 to less than 20 ha during 1995. During the “crash” of 1994-95, milfoil plants exhibited typical signs of weevil-induced damage, including darkened, brittle, hollowed-out growing tips, and the arching and collapse of stems associated with loss of buoyancy. Monitoring of weevils and stem damage during 1995-98 showed highest densities and heaviest damage occurred near shore and subsequently fanned out into deeper water from core infestation sites each spring. The extent of milfoil stem damage was positively correlated with weevil densities (monthly sampling). However, weevil densities and stem damage were lower during 1995 (when milfoil biomass was in decline) than during 1996-98 (when milfoil biomass was fully recovered)

    UK governance after Brexit: yet more variable and even more disjointed

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    Michael Kenny and Jack Sheldon write that, although May's government has been prepared to make various concessions in its dealings with the devolved governments, tricky intergovernmental negotiations relating to Brexit are in line. How these will be managed will be one of the most difficult aspects of the Brexit process

    Euhrychiopsis lecontei distribution, abundance, and experimental augmentations for Eurasian watermilfoil control in Wisconsin lakes

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    The specialist aquatic herbivore Euhrychiopsis lecontei (Dietz) is currently being researched as a potential biological control agent for Eurasian watermilfoil (Myriophyllum spicatum L.). Our research in Wisconsin focused on 1) determining milfoil weevil distribution across lakes, 2) assessing limnological characteristics associated with their abundance, and 3) evaluating milfoil weevil augmentation as a practical management tool for controlling Eurasian watermilfoil

    Frame me if you must: PrEP framing and the impact on adherence to HIV Pre-exposure Prophylaxis

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    Abstract Background “PrEP whore” has been used both as a pejorative by PrEP opponents in the gay community and, reactively, by PrEP advocates as a method to reclaim the label from stigmatization and “slut-shaming.” The actual prevalence and impact of such PrEP-directed stigma on adherence have been insufficiently studied. Methods CCTG 595 was a randomized controlled PrEP demonstration project in 398 HIV-uninfected MSM and transwomen. Intracellular tenofovir-diphosphate (TFV-DP) levels at weeks 12 and 48 were used as a continuous measure of adherence. At study visits, participants were asked to describe how they perceived others’ reactions to them being on PrEP. These perceptions were categorized a priori as either “positively framed,” “negatively framed,” or both. We used Wilcoxon rank-sum to determine the association between positive and negative framing and TFV-DP levels at weeks 12 and 48. Results By week 4, 29% of participants reported perceiving positive reactions from members of their social groups, 5% negative, and 6% both. Reporting decreased over 48 weeks, but positive reactions were consistently reported more than negative. At week 12, no differences in mean TFV-DP levels were observed in participants with positively-framed reactions compared with those reporting no outcome or only negatively-framed (1338 [IQR, 1036-1609] vs. 1281 [946-1489] fmol/punch, P = 0.17). Additionally, no differences were observed in those with negative reactions vs. those without (1209 [977–1427] vs. 1303 [964–1545], P = 0.58). At week 48, mean TFV-DP levels trended toward being higher among those that report any reaction, regardless if positive (1335 [909–1665] vs. 1179 [841–1455], P = 0.09) or negative (1377 [1054–1603] vs. 1192 [838–1486], P = 0.10) than those reporting no reaction. At week 48, 46% of participants reported experiencing some form of PrEP-directed judgment, 23% reported being called “PrEP whore,” and 21% avoiding disclosing PrEP use. Conclusion Over 48 weeks, nearly half of participants reported some form of judgment or stigmatization as a consequence of PrEP use. However, individuals more frequently perceived positively framed reactions to being on PrEP than negative. Importantly, long-term PrEP adherence does not appear to suffer as a result of negative PrEP framing. Disclosures All authors: No reported disclosures

    Legal Education in Transition: Trends and Their Implications

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    This is a pivotal moment in legal education. Revisions in American Bar Association accreditation standards, approved in August 2014, impose new requirements, including practice-based requirements, on law schools. Other external regulators and critics are pushing for significant changes too. For example, the California bar licensing body is proposing to add a practice-based, experiential requirement to its licensing requirements, and the New York Court of Appeals, New York’s highest court, is giving third-year, second semester students the opportunity to practice full-time in indigent legal services programs and projects. Unbeknown to many, there have been significant recent changes in legal education that have added practice-based courses, or practice-based components to courses, in all three years of legal education. Increasingly, law schools are reaching beyond the JD to establish projects in which graduates learn while practicing law. The innovations include first-year courses in which students engage in actual legal work to help provide legal services to clients; technology clinics in which students use or build state-of-the-art technology to help pro se litigants more effectively represent themselves; diversified experiential courses, including “practicums;” and post-JD “incubator,” “fellowship,” “residency,” “apprenticeship,” and “job corps” programs in which law graduates, and sometimes law students, practice and learn from practice. It is a dynamic period in which law schools, including through comprehensive strategic planning, should regain the leadership in facing the present and future challenges. The factors contributing to change—for example, the tough job market, reduced law school applications, interventions of regulators, U.S. News & World Report rankings and increased competition among law schools—are not likely to substantially change in the near future. Law schools are in, should be in, and will be in a period that calls for sustained innovation
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