21,942 research outputs found
Intimations of Immortality: The Ethics and Justice of Life Extending Therapies
We are all programmed to age and die, but maybe it doesn't have to be that way. If cells weren't programmed to age, if the telomeres, which govern the number of times a cell may divide, didn't shorten with each division, if our bodies could repair damage due to disease and aging from within, we would certainly live much longer and healthier lives. From all over the world, research is being reported, which, if it comes to fruition, would not only constitute major contributions to the treatment of disease but could in principle lead to the indefinite extension of life, to the extent perhaps that we would begin to think of people who had received such life- extending treatment as immortals
Future of Jets, Heavy Flavor, and EM Probes at RHIC and RHIC II
Exciting results from the Relativistic Heavy Ion Collider (RHIC) have been
presented at this Workshop. However, fundamental questions remain to be
addressed in the future regarding whether the system is deconfined, chiral
symmetry is restored, a color glass condensate exists in the initial state, and
how the system evolves through eventual hadronization. Jets, heavy flavors and
electromagnetic probes are sensitive to the initial high density stage of RHIC
collisions, and should provide new insight. Significant additional capabilities
will be added with a luminosity upgrade of RHIC (to RHIC II), upgrades of
present detectors and a possible, new comprehensive detector at RHIC II.Comment: 12 pages, 4 figures, 2 tables, Proceedings of the 21st Winter
Workshop on Nuclear Dynamics, Breckenridge, Colorado, February 5--12, 200
Economic causes and consequences of migrations within the context of under-development in West Africa
African Studies Center Working Paper No. 6INTRODUCTION:
In recent discussions of development and inequality in
Africa, at least three positions can be identified concerning
relationships between rural-urban migration and inequality.
The most simplistic and journalistic view is that migrants
come to the cities only to find unemployment and
miserable living conditions. The story, as usually depicted,
identifies the problem as misguided persistence in migrating
explanations based on the inappropriateness of educational
curricula, lures of brights lights, and misinformation. Despite
little evidence to support this view, many African
politicians have identified persistent migration as the
cause of urban poverty and have attempted to stop the flow
of migrants through exhortation, administrative controls, and
coercion. Actions seem to have been based on the notion that
the problems of urban poverty will disappear if only the poor... [TRUNCATED
EPIC Results from ALICE
An overview is presented of the recent heavy ion results from the ALICE
experiment at the Large Hadron Collider. These new results are placed in
perspective with those from the Relativistic Heavy Ion Collider experiments.Comment: 10 pages, 10 figures, EPIC@LHC - International Workshop on Early
Physics with Heavy Ion Collisions at the LHC; Published by American Institute
of Physics (AIP) in the Conference Proceedings Series (2011
The Botswana National Migration Study: a conceptual framework
African Studies Center Working Paper No. 4
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