30 research outputs found

    How can university and national libraries achieve deeper collaboration ?

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    Diaporama d\u27une intervention au 32e congrès LIBER qui s\u27est tenu à Rome du 17 au 20 juin 2003. Présentation du partenariat entre bibliothèques nationales et universitaires en Grande-Bretagne : comment les bibliothèques peuvent améliorer la diffusion de l\u27information auprès des chercheurs en développant une approche stratégique nationale. Exemple du consortium Research Librairies Network (RLN)

    Vertebrate ancient opsin photopigment spectra and the avian photoperiodic response

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    In mammals, photoreception is restricted to cones, rods and a subset of retinal ganglion cells. By contrast, non-mammalian vertebrates possess many extraocular photoreceptors but in many cases the role of these photoreceptors and their underlying photopigments is unknown. In birds, deep brain photoreceptors have been shown to sense photic changes in daylength (photoperiod) and mediate seasonal reproduction. Nonetheless, the specific identity of the opsin photopigment ‘sensor’ involved has remained elusive. Previously, we showed that vertebrate ancient (VA) opsin is expressed in avian hypothalamic neurons and forms a photosensitive molecule. However, a direct functional link between VA opsin and the regulation of seasonal biology was absent. Here, we report the in vivo and in vitro absorption spectra (λmax = ∼490 nm) for chicken VA photopigments. Furthermore, the spectral sensitivity of these photopigments match the peak absorbance of the avian photoperiodic response (λmax = 492 nm) and permits maximum photon capture within the restricted light environment of the hypothalamus. Such a correspondence argues strongly that VA opsin plays a key role in regulating seasonal reproduction in birds

    Genomewide Association Studies of LRRK2 Modifiers of Parkinson's Disease.

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    OBJECTIVE: The aim of this study was to search for genes/variants that modify the effect of LRRK2 mutations in terms of penetrance and age-at-onset of Parkinson's disease. METHODS: We performed the first genomewide association study of penetrance and age-at-onset of Parkinson's disease in LRRK2 mutation carriers (776 cases and 1,103 non-cases at their last evaluation). Cox proportional hazard models and linear mixed models were used to identify modifiers of penetrance and age-at-onset of LRRK2 mutations, respectively. We also investigated whether a polygenic risk score derived from a published genomewide association study of Parkinson's disease was able to explain variability in penetrance and age-at-onset in LRRK2 mutation carriers. RESULTS: A variant located in the intronic region of CORO1C on chromosome 12 (rs77395454; p value = 2.5E-08, beta = 1.27, SE = 0.23, risk allele: C) met genomewide significance for the penetrance model. Co-immunoprecipitation analyses of LRRK2 and CORO1C supported an interaction between these 2 proteins. A region on chromosome 3, within a previously reported linkage peak for Parkinson's disease susceptibility, showed suggestive associations in both models (penetrance top variant: p value = 1.1E-07; age-at-onset top variant: p value = 9.3E-07). A polygenic risk score derived from publicly available Parkinson's disease summary statistics was a significant predictor of penetrance, but not of age-at-onset. INTERPRETATION: This study suggests that variants within or near CORO1C may modify the penetrance of LRRK2 mutations. In addition, common Parkinson's disease associated variants collectively increase the penetrance of LRRK2 mutations. ANN NEUROL 2021;90:82-94

    How can university and national libraries achieve deeper collaboration?

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    Governments are placing great store in "the knowledge economy" as a key engine for economic and social development in a post-manufacturing world. One result is an acceptance for much increased expenditure on research and advanced teaching and there is much debate, at least in the UK, about how these matters should be organised. Since much of the research (excluding defence) and virtually all the graduate teaching will be undertaken in the universities it follows that one key question in the UK is just what proportion and number of the 100 UK universities should be truly "research-intensive"? The trend, although it can be exaggerated, is towards greater concentration and last year I estimated (Follett, 2002) that the faculty in about 12 of the universities will spend on average 50% of their working year on research and graduate teaching, and 50% on undergraduate teaching. In another 30 universities faculty will spend about 25% of their annual working year on research and 75% on undergraduate teaching. In the remaining 60 universities the time available for research will be much smaller. A second key question relates to the "research infrastructure" needed to support the researchers. It is my contention that access to world-class "research information resources" - at a reasonable cost - is a pre-requisite for any nation's research base. In parallel, of course, the actual means of providing those "research information resources" is changing rapidly and the existing provision through "local" research libraries in individual universities or research institutes, often set alongside other services from the "national" library, is under both financial and technological strain: · Electronic provision of delivering research information "direct to the desk-top" has inverted the means of delivery. This has been developed most strongly in the natural sciences but is likely to develop in all areas of research. · The generation of primary research data on a huge scale - from telescopes, particle physics machines and genomics - is leading to electronic grids and the associated metadata being established so as to process and deliver this material direct to the researcher. Similar opportunities exist for using these technologies in the humanities and the social sciences. · Overall growth in the volume of the world's research continues unabated and is likely to do so for the foreseeable future. · Costs of purchasing research information outstrip inflation (even at constant volume), partly because a true market does not exist

    How can university and national libraries achieve deeper collaboration?

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    Governments are placing great store in "the knowledge economy" as a key engine for economic and social development in a post-manufacturing world. One result is an acceptance for much increased expenditure on research and advanced teaching and there is much debate, at least in the UK, about how these matters should be organised. Since much of the research (excluding defence) and virtually all the graduate teaching will be undertaken in the universities it follows that one key question in the UK is just what proportion and number of the 100 UK universities should be truly "research-intensive"? The trend, although it can be exaggerated, is towards greater concentration and last year I estimated (Follett, 2002) that the faculty in about 12 of the universities will spend on average 50% of their working year on research and graduate teaching, and 50% on undergraduate teaching. In another 30 universities faculty will spend about 25% of their annual working year on research and 75% on undergraduate teaching. In the remaining 60 universities the time available for research will be much smaller. A second key question relates to the "research infrastructure" needed to support the researchers. It is my contention that access to world-class "research information resources" - at a reasonable cost - is a pre-requisite for any nation's research base. In parallel, of course, the actual means of providing those "research information resources" is changing rapidly and the existing provision through "local" research libraries in individual universities or research institutes, often set alongside other services from the "national" library, is under both financial and technological strain: · Electronic provision of delivering research information "direct to the desk-top" has inverted the means of delivery. This has been developed most strongly in the natural sciences but is likely to develop in all areas of research. · The generation of primary research data on a huge scale - from telescopes, particle physics machines and genomics - is leading to electronic grids and the associated metadata being established so as to process and deliver this material direct to the researcher. Similar opportunities exist for using these technologies in the humanities and the social sciences. · Overall growth in the volume of the world's research continues unabated and is likely to do so for the foreseeable future. · Costs of purchasing research information outstrip inflation (even at constant volume), partly because a true market does not exist

    How can university and national libraries achieve deeper collaboration ?

    No full text
    Diaporama d\u27une intervention au 32e congrès LIBER qui s\u27est tenu à Rome du 17 au 20 juin 2003. Présentation du partenariat entre bibliothèques nationales et universitaires en Grande-Bretagne : comment les bibliothèques peuvent améliorer la diffusion de l\u27information auprès des chercheurs en développant une approche stratégique nationale. Exemple du consortium Research Librairies Network (RLN)

    “Just How Are We Going to Satisfy Our Research Customers”

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    The challenge is how to provide our researchers with ready and unimpeded access to all types of research information, whether it is held on paper or electronically. This has been, of course, the role of research libraries for hundreds of years so why is it a particular challenge at the present time? May I suggest that the problems are acute because a number of factors are all occurring at the same time. In this paper I will mention some of these
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