191 research outputs found

    Réflexion sur la création d'un centre culturel dans le Val de Bagnes

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    Ce travail a Ă©tĂ© rĂ©alisĂ© sur mandat du Service de la culture de la commune de Bagnes dans le canton du Valais. Le Service de la culture souhaitait que soit menĂ©e une rĂ©flexion sur la possible crĂ©ation dans la commune d’un centre culturel regroupant diverses institutions communales, parmi lesquelles la bibliothĂšque, les archives et le musĂ©e, mais aussi d’autres services susceptibles de se montrer intĂ©ressĂ©s. L’étude a donc portĂ© sur une analyse des tendances dans l’évolution des bibliothĂšques, des archives, des musĂ©es et de leurs modes de collaboration. Cette analyse s’est complĂ©tĂ©e d’une Ă©tude de cas pratiques recensĂ©s en Suisse. Le travail a permis de mettre en Ă©vidence la trĂšs grande variĂ©tĂ© de services partenaires, ainsi que trois types de collaboration possible : cohabitation, collaboration Ă  un projet commun, fusion complĂšte. Dans une deuxiĂšme partie, un Ă©tat des lieux des espaces, des ressources humaines et des activitĂ©s a Ă©tĂ© rĂ©alisĂ© dans la commune de Bagnes pour les archives, la bibliothĂšque, le musĂ©e, mais aussi pour la ludothĂšque, le Conservatoire de musique, le Service des affaires sociales et l’Office du tourisme. Le travail a dĂ©montrĂ© la nĂ©cessitĂ© de procĂ©der Ă  des amĂ©nagements dans chaque institution ou service. Des suggestions sont faites, assorties de propositions pour l’intĂ©gration dans un mĂȘme bĂątiment. Trois modĂšles de collaboration sont proposĂ©s : un centre de rĂ©fĂ©rence sur le Val de Bagnes et les rĂ©gions alpines, Ă  forte identitĂ© patrimoniale, un centre socioculturel plus axĂ© sur l’intĂ©gration et une Maison de la culture et des gĂ©nĂ©rations qui fait converger les deux axes, patrimonial et social, du projet.Diese Arbeit wurde im Auftrag der Kulturabteilung der Gemeinde Bagnes im Kanton Wallis durchgefĂŒhrt. Die Kulturabteilung wĂŒnschte, dass eine Diskussion ĂŒber die mögliche Schaffung eines Kulturzentrums in der Gemeinde gefĂŒhrt wird, das verschiedene Institutionen wie Bibliothek, Archiv und Museum, aber auch andere Dienstleistungen zusammenfĂŒhrt. Die Studie konzentrierte sich daher auf eine Analyse der Entwicklung von Bibliotheken, Archiven, Museen und deren Zusammenarbeit. Diese Analyse wurde durch eine praktische Fallstudie ĂŒber FĂ€lle in der Schweiz ergĂ€nzt. Die Arbeit zeigte die sehr große Vielfalt der Partner sowie drei mögliche Formen der Zusammenarbeit: Zusammenleben, Zusammenarbeit an einem gemeinsamen Projekt, vollstĂ€ndige Fusion. Im zweiten Teil wurde eine Bestandsaufnahme von RĂ€umen, Personal und AktivitĂ€ten fĂŒr das Archiv, die Bibliothek, das Museum, aber auch fĂŒr die Ludothek, die Musikhochschule, die Abteilung fĂŒr Soziales und die Touristeninformation durchgefĂŒhrt. Die Ergebnisse zeigten den Bedarf an VerĂ€nderungen in jeder Einrichtung oder Abteilung. Es werden VorschlĂ€ge unterbreitet, begleitet von VorschlĂ€gen fĂŒr die Integration in das gleiche GebĂ€ude. Es werden drei Modelle vorgeschlagen: ein Referenzzentrum fĂŒr das Val de Bagnes und die Alpenregionen mit einer starken historischen IdentitĂ€t, ein soziokulturelles Zentrum, das sich stĂ€rker auf Integration konzentriert, und ein Zentrum fĂŒr Kultur und Generationen, das das Erbe und die soziale Achse des Projekts vereint

    Selenoprotein expression in endothelial cells from different human vasculature and species

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    AbstractSelenium (Se) can protect endothelial cells (EC) from oxidative damage by altering the expression of selenoproteins with antioxidant function such as cytoplasmic glutathione peroxidase (cyGPX), phospholipid hydroperoxide glutathione peroxidase (PHGPX) and thioredoxin reductase (TR). If the role of Se on EC function is to be studied, it is essential that a model system be chosen which reflects selenoprotein expression in human EC derived from vessels prone to developing atheroma. We have used [75Se]-selenite labelling and selenoenzyme measurements to compare the selenoproteins expressed by cultures of EC isolated from different human vasculature with EC bovine and porcine aorta. Only small differences were observed in selenoprotein expression and activity in EC originating from human coronary artery, human umbilical vein (HUVEC), human umbilical artery and the human EC line EAhy926. The selenoprotein profile in HUVEC was consistent over eight passages and HUVEC isolated from four cords also showed little variability. In contrast, EC isolated from pig and bovine aorta showed marked differences in selenoprotein expression when compared to human cells. This study firmly establishes the suitability and consistency of using HUVEC (and possibly the human cell line EAhy926) as a model to study the effects of Se on EC function in relation to atheroma development in the coronary artery. Bovine or porcine EC appear to be an inappropriate model

    Protection of deoxyribose and DNA from degradation by using aqueous extracts of several wild plants

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    BACKGROUND: Aqueous extracts of 48 herbal plants were obtained via alternative extraction protocols, and were assayed for their capacity to protect deoxyribose and DNA itself from degradation (or, conversely, for their capacity to promote DNA degradation), using electrophoresis as analytical tool. RESULTS: For a given (constant) volume of extract, deoxyribose protection ranged from 14.13 ± 1.35% (mean ± SD) inhibition by dwarf mallow powder infusion, up to 106.51 ± 15.93% inhibition by avocado powder infusion. DNA protection was tested at two extract concentrations, and was slightly greater at the higher concentration. Pro-oxidant effects were essentially absent. CONCLUSION: The anti-oxidative roles of plants upon deoxyribose and DNA displayed by our experimental results were rather promising with regards to practical applications of those plants, viz. as ingredients in the formulation of nutraceutical beverages and/or foods

    Genotoxic effect induced by hydrogen peroxide in human hepatoma cells using comet assay

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    Background: Hydrogen peroxide is a common reactive oxygen intermediate generated by variousforms of oxidative stress. Aims: The aim of this study was to investigate the DNA damage capacity ofH2O2 in HepG2 cells. Methods: Cells were treated with H2O2 at concentrations of 25 ÎŒM or 50 ÎŒM for5 min, 30 min, 40 min, 1 h or 24 h in parallel. The extent of DNA damage was assessed by the cometassay. Results: Compared to the control, DNA damage by 25 ÎŒM and 50 ÎŒM H2O2 increasedsignificantly with increasing incubation time up to 1 h, but it was not increased at 24 h. Conclusions:Our Findings confirm that H2O2 is a typical DNA damage inducing agent and thus is a good modelsystem to study the effects of oxidative stress. DNA damage in HepG2 cells increased significantlywith H2O2 concentration and time of incubation but later decreased likely due to DNA repairmechanisms and antioxidant enzyme

    5-fluorouracil and hydroxyurea enhance adenovirus-mediated transgene expression in colon and hepatocellular carcinoma cells

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    To investigate the efficient transduction of tumor cells which remains a major limitation of cancer gene therapy..Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47535/1/432_2004_Article_608.pd
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