Titlebook: Mathematical and Quantum Aspects of Relativity and Cosmology; Proceedings of the S Spiros Cotsakis,Gary W. Gibbons Conference proceedings 2

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Black Holes and Wormholes in 2+1 Dimensions,is a negative cosmological constant. The classical theory of such locally “anti-de Sitter” spaces is treated in an elementary way, using visualizable models. Among the objects discussed are black holes, spaces with multiple black holes, their horizon structure, closed universes, and the topologies t

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Open Inflation,et it satisfied the no boundary condition and came from an instanton of finite size, with a mass of the order of one gram. Our paper aroused a lot of interest, as shown by 37 citations on HEP-TH, but it brought a lot of opposition. This centered on three features of our model..First, we were attacke

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Multidimensional Cosmological and Spherically Symmetric Solutions with Intersecting ,-Branes, several scalar fields and forms is considered. When electro-magnetic composite .- brane ansatz is adopted, . “internal” spaces are Ricci-flat, one space . . has a non- zero curvature, and all .-branes do not “l(fā)ive” in . ., a class of exact solutions is obtained if certain block-orthogonality relati

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nd biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legum

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Yvonne Choquet-Bruhattivity of the enzyme nitrogenase, while the other is concerned chiefly with its physical and chemical characteristics. Productive research in the former was initiated with the preparation of active cell-free extracts in 1960, but characterization work did not get well under way until into the mid-19

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Arlen Anderson,Yvonne Choquet-Bruhat,James W. York Jr.m was successfully extracted from a bacterium. This peri- od has produced a literature that now describes the N2 fixation reac- tion and the nitrogenase enzyme itself in sophisticated terms, though a detailed reaction mechanism at the chemical level has not yet emerged. It is the purpose of the pres

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R. Beigzyme system was successfully extracted from a bacterium. This peri- od has produced a literature that now describes the N2 fixation reac- tion and the nitrogenase enzyme itself in sophisticated terms, though a detailed reaction mechanism at the chemical level has not yet emerged. It is the purpose o

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