1,951 research outputs found

    Constitutional Law - Civil Rights Actions - Federal Court Review of State Statutes - Abstention

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    The United States Court of Appeals for the Third Circuit has held that the Younger abstention doctrine does not bar a federal court from entertaining a civil rights action seeking injunctive relief against an ongoing state quiet title action since the state had not initiated the underlying state proceeding. Johnson v. Kelly, 583 F.2d 1242 (3d Cir. 1978)

    Simulation of turbulent transonic separated flow over an airfoil

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    A code developed for simulating high Reynolds number transonic flow fields of arbitrary configuration is described. This code, in conjunction with laboratory experiments, is used to devise and test turbulence transport models which may be suitable in the prediction of such flow fields, with particular emphasis on regions of flow separation. The solutions describe the flow field, including both the shock-induced and trailing-edge separation regions, in sufficient detail to provide the profile and friction drag

    Street Outreach Workers: Best Practices and Lessons Learned

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    Street outreach workers are an important part of the Senator Charles E. Shannon Jr. Community Safety Initiative (CSI) comprehensive gang and youth violence reduction strategy in Massachusetts1. Street outreach involves the use of individuals to “work the streets,” making contact with youth in neighborhoods with high levels of gang activity. These individuals are generally not employed by the criminal justice system agencies but rather are based in community service organizations or other non- governmental agencies. Street outreach workers provide an important bridge between the community, gang-involved youth, and the agencies (whether social service or law enforcement) that respond to the problems of delinquency and gangs. This guide offers information, guidance, and lessons learned from street outreach programs nationally and within the Massachusetts Shannon CSI communities to help guide existing street outreach programs and support communities considering developing new street outreach programs

    Eddy Current Detection of Nucleation and Early Growth of Semiconductor Crystals

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    Single crystal CdTe and its solid solution Cd1-x ZnxTe alloys (0.0

    Addressing the Issue of Microplastics in the Wake of the Microbead-Free Waters Act - A New Standard Can Facilitate Improved Policy

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    The United States Microbead-Free Waters Act was signed into law in December 2015. It is a bipartisan agreement that will eliminate one preventable source of microplastic pollution in the United States. Still, the bill is criticized for being too limited in scope, and also for discouraging the development of biodegradable alternatives that ultimately are needed to solve the bigger issue of plastics in the environment. Due to a lack of an acknowledged, appropriate standard for environmentally safe microplastics, the bill banned all plastic microbeads in selected cosmetic products. Here, we review the history of the legislation and how it relates to the issue of microplastic pollution in general, and we suggest a framework for a standard (which we call “Ecocyclable”) that includes relative requirements related to toxicity, bioaccumulation, and degradation/assimilation into the natural carbon cycle. We suggest that such a standard will facilitate future regulation and legislation to reduce pollution while also encouraging innovation of sustainable technologies

    Herbs, thyme essential oil and condensed tannin extracts as dietary supplements for broilers, and their effects on performance, digestibility, volatile fatty acids and organoleptic properties

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    International audienceABSTRACT 1. Herbs, thyme essential oil (EO) and condensed tannin (CT) extracts were compared for their effects as dietary supplements, on broiler growth performance, nutrient digestibility and volatile fatty acid (VFA) profiles in the gut. Cooked meat from the birds fed diets with 4 herbs and an EO extract was compared by a taste panel against those fed the control treatment, for organoleptic properties in the meat. 2. Female broiler chicks were fed wheat-soybean meal diets from 0-42 days of age. These chicks were fed either the basal ration (control), or the basal ration with one of rosemary, garlic or yarrow herbs, mimosa, cranberry or grapeseed CT's, or thyme EO supplements (8 treatments in total). Body mass (BM) and feed consumption (AFC) were measured (7, 21 and 42 days of age). 3. The garlic supplement tended (P>0.05) to improve growth rate over the first 7 days, while mimosa CT and thyme EO supplements reduced weight gains. The mimosa supplement in diets lowered (P<0.05) AFC up to study day 21. Meanwhile, the addition of a cranberry supplement reduced the digestibility of DM, OM and N, compared to the controls. Dietary thyme EO, yarrow, rosemary and garlic supplements modified caecal isovaleric and isobutyric acid proportions (Other VFA; P<0.05). Dietary herb supplements affected the intensity of meat flavour (P<0.001), and the potential of observing both garlic (P<0.001) and abnormal (P<0.001) flavours. There were large differences between the consumption of red and white meat samples, while meat temperature affected several flavour attributes. 4. Dietary garlic and grapeseed CT supplements maintained broiler performance and digestibility similarly to those birds fed the control diet, and these supplements appear suitable for dietary inclusion. Careful choices are necessary when selecting dietary plant extract supplements for broilers, but beneficial effects can be observed

    HLA-DR2 subtypes form an additional supertypic family of DR beta alleles.

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    Microstructured optical fiber-based biosensors: reversible and nanoliter-scale measurement of zinc ions

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    Published: May 6, 2016Sensing platforms that allow rapid and efficient detection of metal ions would have applications in disease diagnosis and study, as well as environmental sensing. Here, we report the first microstructured optical fiber-based biosensor for the reversible and nanoliter-scale measurement of metal ions. Specifically, a photoswitchable spiropyran Zn(2+) sensor is incorporated within the microenvironment of a liposome attached to microstructured optical fibers (exposed-core and suspended-core microstructured optical fibers). Both fiber-based platforms retains high selectivity of ion binding associated with a small molecule sensor, while also allowing nanoliter volume sampling and on/off switching. We have demonstrated that multiple measurements can be made on a single sample without the need to change the sensor. The ability of the new sensing platform to sense Zn(2+) in pleural lavage and nasopharynx of mice was compared to that of established ion sensing methodologies such as inductively coupled plasma mass spectrometry (ICP-MS) and a commercially available fluorophore (Fluozin-3), where the optical-fiber-based sensor provides a significant advantage in that it allows the use of nanoliter (nL) sampling when compared to ICP-MS (mL) and FluoZin-3 (μL). This work paves the way to a generic approach for developing surface-based ion sensors using a range of sensor molecules, which can be attached to a surface without the need for its chemical modification and presents an opportunity for the development of new and highly specific ion sensors for real time sensing applications.Sabrina Heng, Christopher A. McDevitt, Roman Kostecki, Jacqueline R. Morey, Bart A. Eijkelkamp, Heike Ebendorff-Heidepriem, Tanya M. Monro, and Andrew D. Abel

    Environmental DNA metabarcoding as an effective and rapid tool for fish monitoring in canals

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    We focus on a case study along an English canal comparing environmental DNA (eDNA) metabarcoding with two types of electrofishing techniques (wade‐and‐reach and boom‐boat). In addition to corroborating data obtained by electrofishing, eDNA provided a wider snapshot of fish assemblages. Given the semi‐lotic nature of canals, we encourage the use of eDNA as a fast and cost‐effective tool to detect and monitor whole fish communities

    Longitudinal changes in bone parameters in young girls with anorexia nervosa

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    Background: Anorexia nervosa (AN) during childhood and adolescence has been reported to adversely affect bone health, but few studies have investigated longitudinal changes. Method: DXA-derived bone parameters and body composition were retrospectively assessed in 111 young girls with AN with a median age of 15.4 years (10.9, 19.8). In 68 (61%) vertebral fracture assessment (VFA) was performed and in 31 (28%), a follow-up DXA was performed. Correlations with growth, changes in body composition and effects of illness duration and menstruation were examined. Size adjusted DXA standard deviation scores were calculated for total body (TB) less head bone mineral content (TBLH-BMC) and lumbar spine bone mineral apparent density (LS-BMAD). Results: Mean (range) bone area (BA) for height centile was 27.1 (0–97), and mean lean mass for height centile was 28.8 (0–95) at baseline. Mean (range) LS BMAD was −1.0 (−2.6, 0.8) SDS at first and − 1.2 (−3.0, −0.2) at second DXA (p = 0.023). On follow up, lean mass for height increased from 27th centile (0, 75) to 40th centile (0, 70) (p = 0.006), and fat mass for height increased from 55 g/cm to 67 g/cm (11.3, 124.2) (p &lt; 0.001). Duration of illness was the only negative predictor of LS BMAD (p &lt; 0.0001). Change in height SDS was the only positive predictor of change in TBLH-BMC (r = 0.384, p = 0.037), and change in LS BMAD (r-0.934, p &lt; 0.0001). Of 68 patients who had VFA, 4 (5.9%) had a mild vertebral fracture. Conclusion: Bones are smaller and less dense in childhood/adolescent AN compared to healthy adolescents. Although there are significant gains in lean mass and fat mass, over time, BMAD SDS decreases slightly. Improvement in BMAD SDS is related to improvement in height SDS
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