885 research outputs found

    Marine tardigrades from South Carolina, USA

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    Until now, there have been only three studies of marine tardigrades from South Carolina, USA. The Fall 2015 invertebrate zoology class from Warren Wilson College collected four sediment samples from Huntington Beach State Park: shallow beach sand, deep beach sand, shallow salt marsh sediment, and deep salt marsh sediment. No tardigrades were found in the salt marsh, but two species were found in the beach samples. Batillipes pennaki Marcus, 1946 was found in shallow and deep beach sand, and three specimens of a potentially new species of Stygarctus Schulz, 1951 were found in the deep beach sand at groundwater level. Subsequent collections to find more specimens of Stygarctus have been unsuccessful so far, but a third species record, Orzeliscus belopus du Bois-Reymond Marcus, 1952, sensu lato was verified. Three eutardigrade species were also found in the beach sand, but we presume these were “accidentals” from terrestrial environments. A summary of known marine tardigrades from SC is presented

    The 1929 Local Government Act : the formulation and implementation of the poor law (health care) and exchequer grant reforms for England and Wales (outside London).

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    SIGLEAvailable from British Library Document Supply Centre-DSC:DX189694 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

    Src Kinase Determines the Dynamic Exchange of the Docking Protein NEDD9 (Neural Precursor Cell Expressed Developmentally Down-regulated Gene 9) at Focal Adhesions

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    Dynamic exchange of molecules between the cytoplasm and integrin-based focal adhesions provides a rapid response system for modulating cell adhesion. Increased residency time of molecules that regulate adhesion turnover contributes to adhesion stability, ultimately determining migration speed across two-dimensional surfaces. In the present study we test the role of Src kinase in regulating dynamic exchange of the focal adhesion protein NEDD9/HEF1/Cas-L. Using either chemical inhibition or fibroblasts genetically null for Src together with fluorescence recovery after photobleaching (FRAP), we find that Src significantly reduces NEDD9 exchange at focal adhesions. Analysis of NEDD9 mutant constructs with the two major Src-interacting domains disabled revealed the greatest effects were due to the NEDD9 SH2 binding domain. This correlated with a significant change in two-dimensional migratory speed. Given the emerging role of NEDD9 as a regulator of focal adhesion stability, the time of NEDD9 association at the focal adhesions is key in modulating rates of migration and invasion. Our study suggests that Src kinase activity determines NEDD9 exchange at focal adhesions and may similarly modulate other focal adhesion-targeted Src substrates to regulate cell migration.NHMRC Grant 63251

    Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises

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    Acknowledgements We would like to thank Erik Rexstad and Rob Williams for useful reviews of this manuscript. The collection of visual and acoustic data was funded by the UK Department of Energy & Climate Change, the Scottish Government, Collaborative Offshore Wind Research into the Environment (COWRIE) and Oil & Gas UK. Digital aerial surveys were funded by Moray Offshore Renewables Ltd and additional funding for analysis of the combined datasets was provided by Marine Scotland. Collaboration between the University of Aberdeen and Marine Scotland was supported by MarCRF. We thank colleagues at the University of Aberdeen, Moray First Marine, NERI, Hi-Def Aerial Surveying Ltd and Ravenair for essential support in the field, particularly Tim Barton, Bill Ruck, Rasmus Nielson and Dave Rutter. Thanks also to Andy Webb, David Borchers, Len Thomas, Kelly McLeod, David L. Miller, Dinara Sadykova and Thomas Cornulier for advice on survey design and statistical approache. Data Accessibility Data are available from the Dryad Digital Repository: http://dx.doi.org/10.5061/dryad.cf04gPeer reviewedPublisher PD

    Most incompetent calf perforating veins are found in association with superficial venous reflux

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    AbstractPurpose: The indications for surgical perforator interruption remain undefined. Previous work has demonstrated an association between clinical status and the number of incompetent perforating veins (IPVs). Other studies have demonstrated that correction of IPV physiology results from abolition of saphenous system reflux. The purpose of this study was to identify which, if any, patterns of venous reflux and obstruction are particularly associated with IPV. Patients and Methods: Two hundred thirty patients and subjects (103 men, 127 women, 308 limbs) with varying grades of venous disease were examined both clinically and with duplex ultrasound scan. The odds ratios (ORs) for the presence of IPVs were calculated for different anatomical distributions of main-stem venous reflux and obstruction. The base group are those with no main-stem venous disease. Results: There were no significant associations between the proportions of limbs demonstrating IPVs and patient age or sex. The ORs for the presence of IPVs in association with other venous disease are as follows (age/sex adjusted): long saphenous vein reflux, OR = 1.86, range = 1.32-2.63; short saphenous vein reflux, OR = 1.36, range = 1.02-1.82; deep system venous reflux, OR = 1.61, range = 1.2-2.15; superficial system reflux, OR = 3.17, range = 1.87-5.4; and deep system obstruction, OR = 1.09, range = 0.51-2.33. The ORs for combinations of venous disorders were calculated. Combinations of disease produced higher odds for the presence of IPVs than those above, the highest being long saphenous vein, short saphenous vein, and deep reflux combined, OR = 6.85 (95% CI, 2.97-15.83; P =.0001). Conclusions: Although the presence of IPVs is associated with venous ulceration, the highest ORs for the presence of IPVs were found in patients with superficial disease alone or in combination with deep reflux. Many of these may be corrected by saphenous surgery alone. (J Vasc Surg 2001;34:774-8.

    XLIX. Discours

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    BackgroundAn online weight management intervention (POWeR+) combined with a small amount of primary care healthcare practitioner support is effective in helping patients to lose weight, but little is known about how practitioners interact with the POWeR+ intervention or their experiences of providing support for patients using POWeR+. The aim of this study was to explore practitioners’ usage of POWeR+ and their experiences of providing support to patients using POWeR+. MethodsSet within a randomised controlled trial of POWeR+, practitioners’ usage of POWeR+ was automatically captured and a qualitative process analysis was conducted employing semi-structured telephone interviews with practitioners who provided support to patients using POWeR+. The usage analysis captured how 54 practitioners used the POWeR+ intervention. Thirteen telephone interviews explored practitioners’ experiences of using POWeR+ and providing patients with face-to-face or remote (email and telephone) support. Interview data were analysed using inductive thematic analysis. ResultsUsage analysis indicated that almost all practitioners engaged with POWeR+. Pages which displayed patients’ progress and allowed practitioners to email patients were used the most. Practitioners found POWeR+ straightforward and easy to use. Some practitioners preferred providing support face-to-face, which they enjoyed more than remote support. A small number of nurses found providing non-directive support using the CARe approach (Congratulate, Ask, Remind) challenging, feeling it was the opposite of their normal approach. POWeR+ enabled practitioners to raise the topic of weight loss with patients, and POWeR+ was viewed as a superior alternative to existing weight management support which was limited in most practices. Still some practitioners found it difficult to fit providing support into their busy schedules. ConclusionsOverall, practitioners engaged well with POWeR+ and perceived providing patients with support whilst using POWeR+ as acceptable and feasible. CARe provides a potentially useful model for how practitioners can combine human and digital support in a cost-effective way, which could be useful for the management of other conditions. Some potential barriers to implementation were identified, which allowed modification of POWeR+. The findings suggest that implementing this cost-effective online weight management intervention in Primary Care would be feasible and acceptable to practitioners.</p

    Glycogen synthesis correlates with androgen-dependent growth arrest in prostate cancer

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    BACKGROUND: Androgen withdrawal in normal prostate or androgen-dependent prostate cancer is associated with the downregulation of several glycolytic enzymes and with reduced glucose uptake. Although glycogen metabolism is known to regulate the intracellular glucose level its involvement in androgen response has not been studied. METHODS: We investigated the effects of androgen on glycogen phosphorylase (GP), glycogen synthase (GS) and on glycogen accumulation in the androgen-receptor (AR) reconstituted PC3 cell line containing either an empty vector (PC3-AR-V) or vector with HPV-E7 (PC3-AR-E7) and the LNCaP cell line. RESULTS: Androgen addition in PC3 cells expressing the AR mimics androgen ablation in androgen-dependent prostate cells. Incubation of PC3-AR-V or PC3-AR-E7 cells with the androgen R1881 induced G1 cell cycle arrest within 24 hours and resulted in a gradual cell number reduction over 5 days thereafter, which was accompanied by a 2 to 5 fold increase in glycogen content. 24 hours after androgen-treatment the level of Glucose-6-P (G-6-P) had increased threefold and after 48 hours the GS and GP activities increased twofold. Under this condition inhibition of glycogenolysis with the selective GP inhibitor CP-91149 enhanced the increase in glycogen content and further reduced the cell number. The androgen-dependent LNCaP cells that endogenously express AR responded to androgen withdrawal with growth arrest and increased glycogen content. CP-91149 further increased glycogen content and caused a reduction of cell number. CONCLUSION: Increased glycogenesis is part of the androgen receptor-mediated cellular response and blockage of glycogenolysis by the GP inhibitor CP-91149 further increased glycogenesis. The combined use of a GP inhibitor with hormone therapy may increase the efficacy of hormone treatment by decreasing the survival of prostate cancer cells and thereby reducing the chance of cancer recurrence

    Stellar intensity interferometry: Experimental steps toward long-baseline observations

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    Experiments are in progress to prepare for intensity interferometry with arrays of air Cherenkov telescopes. At the Bonneville Seabase site, near Salt Lake City, a testbed observatory has been set up with two 3-m air Cherenkov telescopes on a 23-m baseline. Cameras are being constructed, with control electronics for either off- or online analysis of the data. At the Lund Observatory (Sweden), in Technion (Israel) and at the University of Utah (USA), laboratory intensity interferometers simulating stellar observations have been set up and experiments are in progress, using various analog and digital correlators, reaching 1.4 ns time resolution, to analyze signals from pairs of laboratory telescopes.Comment: 12 pages, 3 figur

    Exploring weight loss services in primary care and staff views on using a web-based programme

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    Although primary care staff felt they should deliver weight loss services, low levels of faith in the efficacy of current treatments resulted in provision of under-resourced and 'ad hoc' services. Integration of a web-based weight loss programme that promotes service evaluation and provides a cost-effective option for supporting patients may encourage practices to invest more in weight management service
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