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Ethical risks of the neurosciences
Ethical risks of the neurosciences
Ethical risks of the neurosciences
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(University of Montreal) The Neuroethics Society will hold its first annual meeting on Nov. 13-14 in Washington where some 300 specialists are expected. Eric Racine of the Universite de Montreal Faculty of Medicine will be one of those researchers and a member of the Neuroethics Society scientific committee.
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Other Articles:
| • | Management of Cracking Puddled Soils and its Impact on Infiltration |
| A study of cracking soils management was conducted in the wet soil bin with nine soil management practice treatments to investigate their impact on infiltration rate. The treatments were arranged in a randomized complete block design (RCB) with three replications. It is observed that the management of cracking soils, even at an early stage of crack initiation, has a great influence on infiltration rate. Among the management practices, the hand hoe operation was found to be better than trampling to reduce the cracks when the crack width was 10 mm. It is also observed that there is no influence of crack number on infiltration if a soil management practice is included with irrigation. The study reveals that with a soil management practice, the cracks reduced or were removed in a short period of time even though the cracks were 10 mm wide. In contrast, without soil management, cracks remained open for a long period even after ponding. By practicing soil management during irrigation, a large volume of water can be saved which my help to bring more area under irrigation particularly where there are limited water resources. | |
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| • | The hyperbolic effect of density and strength of inter beta-cell coupling on islet bursting: a theoretical investigation |
| Background: Insulin, the principal regulating hormone of blood glucose, is released through the bursting of the pancreatic islets. Increasing evidence indicates the importance of islet morphostructure in its function, and the need of a quantitative investigation. Recently we have studied this problem from the perspective of islet bursting of insulin, utilizing a new 3D hexagonal closest packing (HCP) model of islet structure that we have developed. Quantitative non-linear dependence of islet function on its structure was found. In this study, we further investigate two key structural measures: the number of neighboring cells that each ?-cell is coupled to, nc, and the coupling strength, gc. Results: ?-cell clusters of different sizes with number of ?-cells n? ranging from 1?343, nc from 0?12, and gc from 0?1000 pS, were simulated. Three functional measures of islet bursting characteristics ? fraction of bursting ?-cells fb, synchronization index ?, and bursting period Tb, were quantified. The results revealed a hyperbolic dependence on the combined effect of nc and gc. From this we propose to define a dimensionless cluster coupling index or CCI, as a composite measure for islet morphostructural integrity. We show that the robustness of islet oscillatory bursting depends on CCI, with all three functional measures fb, ? and Tb increasing monotonically with CCI when it is small, and plateau around CCI = 1. Conclusion: CCI is a good islet function predictor. It has the potential of linking islet structure and function, and providing insight to identify therapeutic targets for the preservation and restoration of islet ?-cell mass and function. | |
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| • | University of Oxford: Postdoctoral Research Assistant |
| Postdoctoral Research Assistant, University of Oxford, Oxford, United Kingdom. Posted on 25 July 2007. | |
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| • | [BOOK REVIEWS] A Clinical Guide to Epileptic Syndromes and Their Treatment, 2nd ed. |
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| • | canadiangeographic.ca - Canadian Geographic Magazine: Maps, Travel, Photographs, Geography Contests, and Canadian Geographic Magazine Subscriptions |
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| • | Microscope Stereoscopic |
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EurekAlert! - Policy and Ethics
By editor@weddingssitereviews.com - Copyright 2008 by the American Association for the Advancement of Science - version: v1.5 build A
By editor@weddingssitereviews.com - Copyright 2008 by the American Association for the Advancement of Science - version: v1.5 build A