419 research outputs found

    Microsurgical Technique of Simultaneous Pancreas/Kidney Transplantation in the Rat: Clinical Experience and Review of the Literature

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    Background: For experimental basic research, standardized transplantation models reflecting technical and immunologic aspects are necessary. This article describes an experimental model of combined pancreas/kidney transplantation (PKTx) in detail. Materials and Methods: Donor rats underwent en bloc pancreatectomy and nephrectomy. Revascularization was performed using the aorta with the superior mesenteric artery and the inferior vena cava with the portal vein. Exocrine drainage of the pancreas took place over a segment of the duodenum which was transplanted side-to-side to the jejunum. The kidney vessels were transplanted end-to-side. The ureter was anastomosed by patch technique. Postoperatively, serum parameters were monitored daily. Biopsies for histopathology were taken on days 5, 8 and 12. Results: All 12 recipients survived the combined PKTx without serious surgical complications. One thrombosis of the portal vein led to organ failure. Blood glucose levels were normal by the 3rd postoperative day. The transplanted duodenal segment showed slight villous atrophy, and the kidneys were well perfused without vascular complications. The anastomosis between ureter and bladder was leakproof. Conclusions: Excellent graft function and survival rates can be achieved due to simplified operation technique and short operation time. It may thus have high clinical relevance to immunologic issues within the scope of basic research. Copyright (C) 2009 S. Karger AG, Base

    Техническое перевооружение сливо-наливной эстакады для продуктов переработки нефти

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    Объектом исследования является сливоналивная эстакада продуктов переработки нефти". Цель работы – провести техническое обоснование перевооружения перевооружение сливоналивной эстакады продуктов переработки нефти. В процессе исследования проводились литературный обзор, анализ технологии слива и налива нефтепродуктов, технико-экономического обоснование перевооружения сливоналивной эстакады. В результате, исследования был проведен расчет и подбор насосного оборудования для сливоналивной эстакады переработки нефтепродуктов. Область применения: нефтегазовое производство.The object of the study is the overflow loading rack of oil refining products. The purpose of the work is to conduct a technical justification for the re-equipment of the re-equipment of the loading rack of oil refining products. In the course of the study, a literature review was carried out, an analysis of the technology for draining and filling oil products, a feasibility study for the re-equipment of the loading rack. As a result of the study, calculation and selection of pumping equipment for a loading ramp for oil products processing was carried out. Scope: oil and gas production

    Probing the Interaction of the Diarylquinoline TMC207 with Its Target Mycobacterial ATP Synthase

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    Infections with Mycobacterium tuberculosis are substantially increasing on a worldwide scale and new antibiotics are urgently needed to combat concomitantly emerging drug-resistant mycobacterial strains. The diarylquinoline TMC207 is a highly promising drug candidate for treatment of tuberculosis. This compound kills M. tuberculosis by binding to a new target, mycobacterial ATP synthase. In this study we used biochemical assays and binding studies to characterize the interaction between TMC207 and ATP synthase. We show that TMC207 acts independent of the proton motive force and does not compete with protons for a common binding site. The drug is active on mycobacterial ATP synthesis at neutral and acidic pH with no significant change in affinity between pH 5.25 and pH 7.5, indicating that the protonated form of TMC207 is the active drug entity. The interaction of TMC207 with ATP synthase can be explained by a one-site binding mechanism, the drug molecule thus binds to a defined binding site on ATP synthase. TMC207 affinity for its target decreases with increasing ionic strength, suggesting that electrostatic forces play a significant role in drug binding. Our results are consistent with previous docking studies and provide experimental support for a predicted function of TMC207 in mimicking key residues in the proton transfer chain and blocking rotary movement of subunit c during catalysis. Furthermore, the high affinity of TMC207 at low proton motive force and low pH values may in part explain the exceptional ability of this compound to efficiently kill mycobacteria in different microenvironments

    A rapid review of reflective supervision in social work

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    Reflective supervision (RS) is a crucial component of social work practice but little is known about how RS works within the UK context and what the outcomes of RS are for social workers and their service users. A rapid literature review comprised searching four databases for academic and grey literature on the topic of social work RS. The Mixed Methods Appraisal Tool and the University College London’s literature assessment method were employed in an expedited quality appraisal for all included papers. Twenty-seven papers were included. Findings suggest that a supportive, available manager or a peer-group enables reflective practice. Regularity of supervisory sessions and acknowledgement of a social worker’s autonomy are seen as enablers of reflexivity. In contrast, task-oriented approach that is overly focused on accountability and hindered by the sparsity of resources proves problematic for both social workers and service users. Whilst theoretical papers were available, RS was not defined in a uniform fashion and there was limited evidence pertaining to supervisory practice. More research focusing on what works and what improvements are needed in RS, including adopting a participatory approach would help to bridge this gap and further inform policy and practice

    The Lantern Vol. 34, No. 2, May 1968

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    • The Man Without a System • A Medal for Malcolm • On Hearing That Tonya Will Be Married • The Black Sea • Odyssey \u2767 • Second Poem to Chris • Singularity • Period 5-A Began • Long and Aching Ride • Souvenirs • My Eschatological Epitaph • Discotheque • Some Borrowed Words • False Breakthrough • Shore Morning • The Beholder • Thursday Childless • A Most Prominent Role • It Ran Out • Shades of the Living • The Dark Night of the Mind II • One Step Beyond the Doors • A Note of Thanks to My Parents and Teachers • To a Dead Hippie • A Scrap • Love • Haiku No. 30 • Rachel • There Is No Present • Winter Woods • One Hundred Per Cent Genuine • Heaven • Silence Is Like God • I Soaked Up Silence • Opened Letter From Whistler Homer, Insaned Assailant • Sol Clutch Rides Tonight • I Have Seen Destruction • Upon That Night • That\u27s Weird • Alone • Kathy\u27s Tune • On Walking Home • The Wheel • Some Excuse, at Least • Freedom to Flap • Awareness • Okay, You Guys • You Say You Dream • Bacci Miahttps://digitalcommons.ursinus.edu/lantern/1093/thumbnail.jp

    Neutrophils in cancer: neutral no more

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    Neutrophils are indispensable antagonists of microbial infection and facilitators of wound healing. In the cancer setting, a newfound appreciation for neutrophils has come into view. The traditionally held belief that neutrophils are inert bystanders is being challenged by the recent literature. Emerging evidence indicates that tumours manipulate neutrophils, sometimes early in their differentiation process, to create diverse phenotypic and functional polarization states able to alter tumour behaviour. In this Review, we discuss the involvement of neutrophils in cancer initiation and progression, and their potential as clinical biomarkers and therapeutic targets
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