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Migration and Colonization in Human Microevolution

Migration and colonization are major forces affecting the frequency, spatial pattern and spread of genes in human populations. Here, Alan Fix reviews theories of migration developed by biologists and social scientists and surveys patterns of migration in a diverse sample of human populations. Using these empirical studies, he evaluates models of migration developed by population geneticists and explores more realistic models using co...

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Cosmological Enigmas: Pulsars, Quasars, and Other Deep-Space Questions

The universe is big. Really big. And it gets bigger every day. In Cosmological Enigmas, Mark Kidger weaves together history, science, and science fiction to consider questions about the bigness of space and the strange objects that lie trembling at the edge of infinity. What are quasars, blazars, and gamma-ray bursters? Could we ever travel to the stars? Can we really expect aliens to contact us? From the profound (what evidence do w...

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Into the Extreme : U.S. Environmental Systems and Politics Beyond Earth

"This captivating book tells the story of how 'outer space' is being reimagined and remade in the key of the environmental, as a cosmic ecosystem. Drawing on fieldwork with scientists at an undersea space-analog habitat, at NASA mission control, and at a center for space medicine, Valerie Olson artfully demonstrates how our human home planet is the scale and place from which a habitable cosmos is made and imagined."—Stefan Helmreich,...

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On To Mars!: Chronicles of Martian Simulations

This book introduces the Martian simulations, one installed on Devon Island, an uninhabited island in the Canadian Arctic, well within the polar circle, and two in the desert of Utah, several hundreds of kilometers South of Salt Lake City. The book is based on the diaries during the simulations, held by Vladimir Pletser, a physicist-engineer, who was selected to attend these simulations. It relates the details of everyday life in the...

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The Final Mission: Preserving NASA's Apollo Sites

Between 1969 and 1972 twelve American astronauts walked on the Moon during six landings. The manner of accomplishing that feat was both difficult and impressive. It required an investment of $25.4 billion dollars (approximately $174 billion in 2018 dollars), the efforts of more than 400,000 workers at the height of the program, and the construction of new NASA facilities, the modification and use of the existing aerospace technology ...

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Physics Beyond the Standard Models of Particles, Cosmology and Astrophysics

This book contains the proceedings of the Fifth International Conference on Physics Beyond the Standard Models of Particle Physics, Cosmology and Astrophysics. It presents a brilliant overview of the status and future potential and trends in experimental and theoretical particle physics, cosmology and astrophysics, in the complimentary sectors of accelerator, non-accelerator and space physics.

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Origins: The Story of the Beginning of Everything

About 13.8 billion years ago the universe was born, with space and time coming into being in the same instant. By the time the universe was 1 second old, the four forces in nature had acquired their present characteristics, elementary particles had obtained their mass, and particles constituting the nuclei of atoms were created. The nuclei of light elements, hydrogen and helium, were formed within the first 10 minutes of the birth of...

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Ecological Communities: Conceptual Issues and the Evidence

This work is the first to focus systematically on a much-debated topic: the conceptual issues of community ecology, including the nature of evidence in ecology, the role of experiments, attempts to disprove hypotheses, and the value of negative evidence in the discipline. Originally published in 1984. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the...