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From Varying Couplings to Fundamental Physics
Nature is characterized by a number of physical laws and fundamental dimensionless couplings. These determine the properties of our physical universe, from the size of atoms, cells and mountains to the ultimate fate of the universe as a whole. Yet it is rather remarkable how little we know about them. The constancy of physical laws is one of the cornerstones of the scientific research method, but for fundamental couplings this is an assumption with no other justification than a historical assumption. There is no 'theory of constants' describing their role in the underlying theories and how they relate to one another or how many of them are truly fundamental. Studying the behaviour of these quantities throughout the history of the universe is an effective way to probe fundamental physics. This explains why the ESA and ESO include varying fundamental constants among their key science drivers for the next generation of facilities. This symposium discussed the state-of-the-art in the field, as well as the key developments anticipated for the coming years.
Science and Empires
SCIENCE AND EMPIRES: FROM THE INTERNATIONAL COLLOQUIUM TO THE BOOK Patrick PETITJEAN, Catherine JAMI and Anne Marie MOULIN The International Colloquium "Science and Empires - Historical Studies about Scientific De velopment and European Expansion" is the product of an International Colloquium, "Sciences and Empires - A Comparative History of Scien tific Exchanges: European Expansion and Scientific Development in Asian, African, American and Oceanian Countries". Organized by the REHSEIS group (Research on Epistemology and History of Exact Sciences and Scientific Institutions) of CNRS (National Center for Scientific Research), the colloquium was held from 3 to 6 April 1990 in the UNESCO buildi...
Human Immunodeficiency Virus type 1 (HIV-1) and Breastfeeding
The HIV pandemic continues to levy a heavy burden on the human race world-wide. The estimated number of people who became newly infected with HIV in 2009 was 2.6 million; most of these individuals live in Sub-Saharan Africa, followed by India and Southeast Asia. An estimated 370,000 new cases of pediatric infections occurred globally in 2009 (or more than 1,000 new infections every day), practically all of them through mother-to-child transmission. Up to 40% of all new infant HIV infections occur during breastfeeding. While breastfeeding by HIV-infected mothers is not recommended in the U.S. and other resource-rich settings where safe replacement feeding is easily available, the situation is...
Drugs, Neurotransmitters, and Behavior
The first six volumes of the Handbook reviewed basic neuropharmacology, drawing on expertise in biochemistry, pharmacology and electrophysiology. The next three volumes focus attention on the functional importance of these basic neuropharmacological mechanisms for normal behavior. In order to study this interface in the intact functioning organism, appropriate methods for describing and quantifying behavior must be developed. The past twenty years have witnessed a revolution in the study of behavior which has taken us away from the often fruitless theoretical arguments to descriptive behaviorism. Technical achievements in the design of apparatus and the recording of behavior played an import...
Current List of Medical Literature
Includes section, "Recent book acquisitions" (varies: Recent United States publications) formerly published separately by the U.S. Army Medical Library.
The Physics of Galaxy Formation
This thesis addresses two of the central processes which underpin the formation of galaxies: the formation of stars and the injection of energy into the interstellar medium from supernovae, called feedback. In her work Claudia Lagos has completely overhauled the treatment of these processes in simulations of galaxy formation. Her thesis makes two major breakthroughs, and represents the first major steps forward in these areas in more than a decade. Her work has enabled, for the first time, predictions to be made which can be compared against new observations which probe the neutral gas content of galaxies, opening up a completely novel way to constrain the models. The treatment of feedback from supernovae, and how this removes material from the interstellar medium, is also likely to have a lasting impact on the field. Claudia Lagos Ph.D. thesis was nominated by the Institute for Computational Cosmology at Durham University as an outstanding Ph.D. thesis 2012.
The Basal Ganglia
This volume arose out of the symposium: "The Basal Ganglia: Structure and Function," held at the beginning of September 1983 as a satellite of the 29th International Congress of Physiological Sciences. The symposium took place at Lorne, a village on the ocean 150km south-west of Melbourne in a former holiday guest-house situated beside the beach. The sounds of surf and winter rain on the iron roof provided a background to the proceedings. The symposium was a happy and productive event, among a small group of participants from twelve countries, undistracted by any competing activities in the out-of-season period. Over three days, there were formal papers with lively discussion, as well as pos...
New Developments in String Theory Research
String theory is a physical model whose fundamental building blocks are one-dimensional extended objects (strings) rather than the zero-dimensional points (particles) that were the basis of most earlier physics. For this reason, string theories are able to avoid problems associated with the presence of point-like particles in a physical theory. Detailed study of string theories has revealed that they describe not just strings but other objects, variously including points, membranes, and higher-dimensional objects. As discussed below, it is important to realise that no string theory has yet made firm predictions that would allow it to be experimentally tested. Jessica Magoto created the funda...
