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Physics Formation And Evolution Of Rotating Stars

Author : Andre Maeder
ISBN : 9783540769491
Genre : Science
File Size : 79.43 MB
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Rotation is ubiquitous at each step of stellar evolution, from star formation to the final stages, and it affects the course of evolution, the timescales and nucleosynthesis. Stellar rotation is also an essential prerequisite for the occurrence of Gamma-Ray Bursts. In this book the author thoroughly examines the basic mechanical and thermal effects of rotation, their influence on mass loss by stellar winds, the effects of differential rotation and its associated instabilities, the relation with magnetic fields and the evolution of the internal and surface rotation. Further, he discusses the numerous observational signatures of rotational effects obtained from spectroscopy and interferometric observations, as well as from chemical abundance determinations, helioseismology and asteroseismology, etc. On an introductory level, this book presents in a didactical way the basic concepts of stellar structure and evolution in "track 1" chapters. The other more specialized chapters form an advanced course on the graduate level and will further serve as a valuable reference work for professional astrophysicists.
Category: Science

The Collapse Of The Theory Of Evolution In 50 Themes

Genre :
File Size : 77.5 MB
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For the last 150 years, the theory of evolution has been portrayed everywhere—from school textbooks to scholarly publications—as scientific fact. But it actually stands on highly unsound foundations. Every claim that evolutionists have made over the last 150 years has later been refuted by science. Evolutionists have finally abandoned trying to prove their theory and instead, have begun looking for ways to prop it up by such methods as propaganda, demagogy, and outright deception. Their aim is no longer to defend a scientific theory, but rather to persist in promoting this nonsense which is supposed to be scientific so as to maintain their materialist, atheistic world views.

Starbursts Triggers Nature And Evolution

Author : Bruno Guiderdoni
ISBN : 3540647015
Genre : Science
File Size : 50.64 MB
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Starbursts are regions of unusually rapid star formation often located in the central parts of galaxies. Recent observational and theoretical developments have emphasized their importance to understand the connection between star formation, the interstellar medium, and the secular evolution of galaxies. In this book, leading experts in the field introduce the basic processes involved in the physics of starbursts, the phenomenological concepts which are used to describe and model their triggering and evolution, and their link to galaxy formation and history. A specific effort is made to start with pedagogical presentations and to review the state-of-the art of the observations and models, emphasizing the recent breakthroughs and the major issues to be explored in the future.
Category: Science

The Origin And Evolution Of The Solar System

Author : Michael M. Woolfson
ISBN : 1420033352
Genre : Science
File Size : 69.68 MB
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The origin of the solar system has been a matter of speculation for many centuries, and since the time of Newton it has been possible to apply scientific principles to the problem. A succession of theories, starting with that of Pierre Laplace in 1796, has gained general acceptance, only to fall from favor due to its contradiction in some basic scientific principle or new heavenly observation. Modern observations by spacecraft of the solar system, the stars, and extra-solar planetary systems continuously provide new information that may be helpful in finding a plausible theory as well as present new constraints for any such theory to satisfy. The Origin and Evolution of the Solar System begins by describing historical (pre-1950) theories and illustrating why they became unacceptable. The main part of the book critically examines five extant theories, including the current paradigm, the solar nebula theory, to determine how well they fit with accepted scientific principles and observations. This analysis shows that the solar nebula theory satisfies the principles and observational constraints no better than its predecessors. The capture theory put forward by the author fares better and also indicates an initial scenario leading to a causal series of events that explain all the major features of the solar system.
Category: Science

Stellar Evolution Stellar Explosions And Galactic Chemical Evolution Proceedings Of The Second Oak Ridge Symposium On Atomic And Nuclear Astrophysics Oak Ridge Tennessee 2 6 December 1997

Author : Mezzacappa
ISBN : 075030555X
Genre : Science
File Size : 74.90 MB
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Bringing together atomic physicists, nuclear physicists, astronomers, and astrophysicists from around the world, Stellar Evolution, Stellar Explosions, and Galactic Chemical Evolution focuses on stellar atmospheres; stellar evolution; stellar explosions, such as novae, supernovae, and x-ray bursters; pregalactic and galactic chemical evolution; the interstellar medium; and atomic and nuclear data for astrophysics. Consisting of invited papers, invited posters, and contributed posters, this volume covers observations, modeling, and atomic and nuclear physics foundations, including data, experiments, and theories, that are essential to understanding these important astrophysical objects and events. It documents a confluence of atomic physics, nuclear physics, and astrophysics and a confluence of data from atomic and nuclear physics experiments from current-generation astronomical instruments-all have helped advance the frontier in our understanding of the universe.
Category: Science

Evolution Of Markets And Institutions

Author : Murali Patibandla
ISBN : 9781134299928
Genre : Business & Economics
File Size : 61.17 MB
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The new institutional economics has been one of the most influential schools of thought to emerge in the past quarter century. Taking its roots in the transaction cost theory of the firm as an economic organization rather than purely a production function, it has been developed further by scholars such as Oliver Williamson, Douglas North and their followers, leading to the rich and growing field of the new institutional economics. This branch of economics stresses the importance of institutions in the functioning of free markets, which include elaborately defined and effectively enforced property rights in the presence of transaction costs, large corporate organizations with agency and hierarchical controls, formal contracts, bankruptcy laws, and regulatory institutions. In this timely volume, Murali Patibandla applies some of the precepts of the new institutional economics to India - one of the world's most promising economies.
Category: Business & Economics

Free Radicals

Author : Gerald M. Rosen
ISBN : 0195095057
Genre : Science
File Size : 35.73 MB
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Free radicals, molecules with unpaired electrons, are highly reactive and play key roles in physiologic regulation and in many degenerative and pathologic processes, making them a fertile area of research. This book focuses on spin trapping, a sophisticated technique for the identification of free radicals in biological systems. The method is complex, and this book offers an in-depth guide to all of the critical aspects needed for its application to free radicals in biology. This includes advice on interpreting results, trouble-shooting, and experimental designs. The book looks at future directions in the field and will prove an invaluable resource for investigators working in the biology of free radicals, regardless of whether they are new or highly experienced in the applications of spin trapping.
Category: Science