摘要:

In modern biology, there is an increasing emphasis on the relevance of the structure of a protein or other macromolecule to its biological functions. Similarly, the structure of a virus particle holds much information about its biology, and can be applied to such tasks as the interpretation of genetic data or the design of antiviral drugs. Recent technological advances in virus structure determination have allowed the structures of many viruses to be solved by x‐ray crystallography and/or cryo‐electron microscopy combined with image reconstruction. © 2003 American Institute of Physics

ISSN:0094-243X    

DOI:10.1063/1.1639601

出版商:AIP    

年代:1903

数据来源: AIP

摘要:

Most of the matter in the galaxies is invisible to a direct observations. This dark matter is distributed in space differently than the stars and the gas, forming very vast and massive structures around galaxies, more spherical than disklike, called haloes. The composition of these haloes is unknown. It may comprise a mixture of exotic, hypothetical elementary particles and baryonic material, which can exist in several dark form, including planets, brown dwarfs, ancient degenerate dwarf stars, neutron stars and black holes, collectively known as massive compact halo objects (MACHOs). When a MACHO in the halo of our galaxy is sufficiently close to the line of sight between us and a more distant star, the light emitted from this source star suffers a gravitational deflection, according to the theory of General Relativity. The MACHO, acting as agravitational lens, produces amicrolensingeffect, that is a potentially huge magnification of the source light. In this way, the MACHOs could be detected indirectly by their gravitational field. We analyzed the features of microlensing events found looking towards a Milky Way satellite, the Large Magellanic Cloud. © 2003 American Institute of Physics

ISSN:0094-243X    

DOI:10.1063/1.1639602

出版商:AIP    

年代:1903

数据来源: AIP

摘要:

The main ideas presented at the Conference “Highlights in Condensed Matter Physics” are shortly summarized. They might suggest important topics of future investigations in the theory of strongly correlated electrons including highTcsuperconductivity, and in selected quantum and classical systems which are prominent examples of complex behavior in Nature. A special occasion celebrated by this Conference is also briefly emphasized. © 2003 American Institute of Physics

ISSN:0094-243X    

DOI:10.1063/1.1639603

出版商:AIP    

年代:1903

数据来源: AIP

ISSN:0094-243X    

DOI:10.1063/1.1639604

出版商:AIP    

年代:1903

数据来源: AIP