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Astrophysics with Radioactive Isotopes (Astrophysics and Space Science Library #453)
by Roland Diehl Dieter H. Hartmann Nikos PrantzosDealing with astrophysics derived from the radiation emitted by radioactive atomic nuclei, this book describes the different methods used to measure cosmic radio-isotopes. It demonstrates how this astronomical window has contributed to the understanding of the sources and the chemical evolution of cosmic gas. Reference materials and explanations are included for students in advanced stages of their education.Nuclear reactions in different sites across the universe lead to the production of stable and unstable nuclei. Their abundances can be measured through different methods, allowing to study the various nuclear processes taking place in cosmic environments. Nucleosynthesis is the cosmic formation of new nuclear species, starting from hydrogen and helium resulting from the big bang origins. Stars create and eject synthesized nuclei during their evolution and explosions. Incorporation of the new interstellar composition into next-generation stars characterises the compositional (chemical) evolution of cosmic gas in and between galaxies. Radioactive species have unique messages about how this occurs. Since the first Edition of this book published in 2011 with the title Astronomy with Radioactivities, long-awaited new direct observations of supernova radioactivity have been made and are now addressed in two updated chapters dealing with supernovae. In this second Edition, the advances of recent years beyond one-dimensional treatments of stellar structure and stellar explosions towards 3-dimensional models have been included, and led to significant re-writings in Chapters 3-5. The sections on the Solar System origins have been re-written to account for new insights into the evolution of giant molecular clouds. The chapter on diffuse radioactivities now also includes material measurements of radioactivities in the current solar system, and their interpretations for recent nucleosynthesis activity in our Galaxy. Significant new results on gamma-rays from positron annihilations have been accounted for in that chapter, and led to new links with nucleosynthesis sources as well as interstellar transport processes. A new chapter now provides a description of interstellar processes often called 'chemical evolution', thus linking the creation of new nuclei to their abundance observations in gas and stars. The experimental / instrumental chapters on nuclear reaction measurements, on gamma-ray telescopes, and pre-solar grain laboratories have been updated. Moreover, new windows of astronomy that have been opened up in recent years have been included in the discussions of the multi-messenger approach that broadens the basis for astrophysical insights.
Astrophysik: Eine Einführung in Theorie und Grundlagen (Teubner Studienbücher Physik Ser.)
by Karl-Heinz SpatschekVon wei#65533;en Zwergen und schwarzen L#65533;chern: Diese Einf#65533;hrung in Grundlagen und Theorie vermittelt anschaulich und kompakt ein Verst#65533;ndnis der Physik des Universums. Dargestellt werden die wichtigen physikalischen Modelle, mit denen die Sterne beschrieben werden k#65533;nnen. Viele der faszinierenden Ph#65533;nomene unseres Universums lassen sich so quantitativ untersuchen.
Astrophysik: Eine Einführung in Theorie und Grundlagen
by Karl-Heinz SpatschekVon weißen Zwergen und schwarzen Löchern: Diese Einführung in Grundlagen und Theorie vermittelt anschaulich und kompakt ein Verständnis der Physik des Universums. Dargestellt werden die wichtigen physikalischen Modelle, mit denen die Sterne beschrieben werden können. Viele der faszinierenden Phänomene unseres Universums lassen sich so quantitativ untersuchen.
Astropolitik: Classical Geopolitics in the Space Age (Strategy and History)
by Everett C. DolmanThis volume identifies and evaluates the relationship between outer-space geography and geographic position (astrogeography), and the evolution of current and future military space strategy. In doing so, it explores five primary propositions.
Astroscale, Space Debris, and Earth's Orbital Commons
by Mayuka Yamazaki Angela Acocella Matthew C. WeinzierlAn engineer and technology entrepreneur, Nobu Okada, had turned a mid-life crisis into a bold-some would say quixotic-quest to prevent a tragedy of the commons at the global scale. Namely, Okada believed the accumulation of debris in near-Earth orbital space posed a serious threat to a vast array of critical satellites and, thereby, both the modern information economy and the future of human activities in space. Frustrated at what he saw as far too slow a reaction to the threat among major space powers, Okada planned to develop a spacecraft capable of adhering to, and redirecting, that debris. By lowering the costs of debris removal, he hoped to make it routine, even in the absence of government action. As of 2016 his company, Astroscale, which had secured private funding years earlier, was nearing the first demonstration of the technology. This case is intended to help students understand how a tragedy of the commons develops in a specific, nearly textbook example. As important, this case is about potential solutions to the tragedy of the commons when the market and policy both fall short.
Astrosex: Aquarius
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Aries
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Cancer
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Capricorn
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Gemini
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Leo
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Libra
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Pisces
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Sagittarius
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Scorpio
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Taurus
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrosex: Virgo
by Erika W. SmithEverything you need to know to have the best sex according to your star sign.
Astrostatistical Challenges for the New Astronomy (Springer Series in Astrostatistics #1)
by Joseph M. HilbeAstrostatistical Challenges for the New Astronomy presents a collection of monographs authored by several of the disciplines leading astrostatisticians, i.e. by researchers from the fields of statistics and astronomy-astrophysics, who work in the statistical analysis of astronomical and cosmological data. Eight of the ten monographs are enhancements of presentations given by the authors as invited or special topics in astrostatistics papers at the ISI World Statistics Congress (2011, Dublin, Ireland). The opening chapter, by the editor, was adapted from an invited seminar given at Los Alamos National Laboratory (2011) on the history and current state of the discipline; the second chapter by Thomas Loredo was adapted from his invited presentation at the Statistical Challenges in Modern Astronomy V conference (2011, Pennsylvania State University), presenting insights regarding frequentist and Bayesian methods of estimation in astrostatistical analysis. The remaining monographs are research papers discussing various topics in astrostatistics. The monographs provide the reader with an excellent overview of the current state astrostatistical research, and offer guidelines as to subjects of future research. Lead authors for each chapter respectively include Joseph M. Hilbe (Jet Propulsion Laboratory and Arizona State Univ); Thomas J. Loredo (Dept of Astronomy, Cornell Univ); Stefano Andreon (INAF-Osservatorio Astronomico di Brera, Italy); Martin Kunz ( Institute for Theoretical Physics, Univ of Geneva, Switz); Benjamin Wandel ( Institut d'Astrophysique de Paris, Univ Pierre et Marie Curie, France); Roberto Trotta (Astrophysics Group, Dept of Physics, Imperial College London, UK); Phillip Gregory (Dept of Astronomy, Univ of British Columbia, Canada); Marc Henrion (Dept of Mathematics, Imperial College, London, UK); Asis Kumar Chattopadhyay (Dept of Statistics, Univ of Calcutta, India); Marisa March (Astrophysics Group, Dept of Physics, Imperial College, London, UK).
Astrostyle
by Tali Edut Ophira EdutWhat's Your Astrostyle? From Dating to Dressing to Discovering Your Dreams Will a Leo-Scorpio match spawn a royal rumble or a sweet success? Why do some Tauruses seem more in love with their reflections than with you? Which clothes will maximize your sign's mojo and which will prompt the fashion police to put you under house arrest? Dishing the hottest advice under the sun signs, AstroTwins Tali & Ophira Edut -- the official astrologers for Teen People -- will guide you through the wild world of relationships, personal style, and everyday life -- with glamour, style, and a pinch of celebrity stardust. Spicing their savvy advice with insights into pop icons like J. Lo (a classic Leo megastar), Josh Hartnett (a sensitive Cancer boy), and Britney Spears (a feisty Sagittarius), the AstroTwins cover the whole universe of teen experience, including: Love: How to make any astro relationship last -- and how to end it fast Fashion: Cosmic wardrobe hints, custom-made for your sign Livin' it up: Tips on picking friends, managing your issues, and finding a favorite hangout Destiny: How the stars can guide you to fame, fortune, and figuring it all out
Astrotopia: The Dangerous Religion of the Corporate Space Race
by Mary-Jane RubensteinA revealing look at the parallel mythologies behind the colonization of Earth and space—and a bold vision for a more equitable, responsible future both on and beyond our planet. As environmental, political, and public health crises multiply on Earth, we are also at the dawn of a new space race in which governments team up with celebrity billionaires to exploit the cosmos for human gain. The best-known of these pioneers are selling different visions of the future: while Elon Musk and SpaceX seek to establish a human presence on Mars, Jeff Bezos and Blue Origin work toward moving millions of earthlings into rotating near-Earth habitats. Despite these distinctions, these two billionaires share a core utopian project: the salvation of humanity through the exploitation of space. In Astrotopia, philosopher of science and religion Mary-Jane Rubenstein pulls back the curtain on the not-so-new myths these space barons are peddling, like growth without limit, energy without guilt, and salvation in a brand-new world. As Rubenstein reveals, we have already seen the destructive effects of this frontier zealotry in the centuries-long history of European colonialism. Much like the imperial project on Earth, this renewed effort to conquer space is presented as a religious calling: in the face of a coming apocalypse, some very wealthy messiahs are offering an other-worldly escape to a chosen few. But Rubenstein does more than expose the values of capitalist technoscience as the product of bad mythologies. She offers a vision of exploring space without reproducing the atrocities of earthly colonialism, encouraging us to find and even make stories that put cosmic caretaking over profiteering.
The AstroTwins' Love Zodiac
by Tali Edut Ophira EdutDemystify men and transform any relationship. Discover what you see in him and what he'll see in you. The Astro Twins have been using the zodiac for over 15 years to help couples find the love affair of their dreams. A good relationship may mean adjusting to someone who often thinks, acts, and views the world in a way totally foreign to you. You can have a great relationship with a man of any zodiac sign--the key is to learn what makes him tick. Using this definitive guide to understand his personality, his preferences, and his values will help you decide whether you're in it for the long haul--or not. Breaking down the entire astrological anatomy of all 12 signs of men, you'll quickly discover: How he courts, flirts, and shows he's committed; How to tell if he's serious or just playing around; What turns him on and off; How to prep for your first date, his first visit to your place, and meeting his family; What he values in life, a woman, and a relationship; Why he'd cheat and how to tell if he's serious or just playing around; When it's over for good; Commonly misunderstood signals; Your best moves; Sign-by-sign compatibility--what really happens in every combination, including the conflicts, the benefits, the compromises, and the ways you'll both grow from being together.
Astrovirus Research: Essential Ideas, Everyday Impacts, Future Directions
by Stacey Schultz-CherryAstroviruses were first identified in the feces of children in 1975. Since then, they have been found in ~ 3 to 20% of children with diarrhea. Given that serological studies have demonstrated that up to 90% of children have been exposed to at least one strain of astrovirus by age 9, the prevalence of infection may be much higher. Supporting this are studies demonstrating that astroviruses can also be isolated in a subset of asymptomatic individuals, suggesting that a proportion of infected individuals shed the virus asymptomatically or for some time after the resolution of other symptoms of infection. Asymptomatic carriers may be a major reservoir for astroviruses in the environment and could contribute to dissemination of the virus. Astroviruses are extremely stable in the environment and can be transmitted nosocomially, directly from infected individuals and potentially animals, and through contaminated food and water. Although typically an acute disease, astrovirus infection in premature infants may be associated with the development of necrotizing enterocolitis and in new-onset celiac disease in children. Immunocompromised children are even more susceptible often developing persistent infections that lead to wasting or even systemic infections associated with fatal encephalitis. In spite of its importance, little is known about astrovirus pathogenesis, molecular biology, epidemiology, or cell biology. The goal of this book is to provide the latest and most up-to-date information on this medically important and rapidly evolving group of viruses. It will include sections on the history of astroviruses and their disease in humans; information on viral replication and immune responses; new information on how astroviruses induce disease including the expression of a viral enterotoxin regulating intestinal epithelial cell tight junctions, the isolation and identification of new astrovirus genotypes in mammals including humans, and astroviruses of veterinary importance. Finally, the book will also introduce the complexity of astrovirus epidemiology and potential as an important new zoonotic disease, and its role in food-borne disease. This will be the first book of its kind and will be of great interest to microbiologists, virologists, infectious disease specialists, immunologists, pediatricians, public health and food safety experts, veterinarians, poultry industry specialists, and researchers and clinicians interested in enteritis.
Astuces pour la vie: Plus de 750 astuces santé, bonheur et succès
by Ayesha S. RatnayakeDécouvrez plus de 750 moyens d’améliorer votre vie – d’après des centaines de bestsellers. En tant que PDG très occupée, Ayesha détestait ses longs trajets au travail – jusqu’à ce qu’elle en fasse sa propre bibliothèque mobile. Très vite, elle arrivait à terminer plus de 70 audiobooks chaque année concernant le bonheur, la santé, la productivité et le succès – tout en étant coincée dans les embouteillages. Elle a commencé à capturer et catégoriser de ses lectures les recherches les plus utiles, pour un référencement rapide. Ce faisant, elle a réalisé qu’il était possible de composer un manuel pour la vie, basé sur les expertises de centaines de chercheurs. Elle s’est donc mise à l’écrire. Résultat : Astuces pour la vie – un manuel concis de conseils basés sur la science concernant 17 aspects de la vie, depuis la santé à l’argent, en passant par le leadership et les relations. Dans Astuces pour la vie, vous apprendrez : - Que jouer au classique Tetris peut améliorer votre humeur - Quel est le superaliment qui est le plus important indicateur diététique pour la longévité - Pourquoi il n’est pas nécessaire de boire 8 verres d’eau par jour – et que faire à la place - La technique simple à utiliser pour doubler votre perte de poids - A augmenter vos chances de trouver votre partenaire de 25 à 46 % - Quel est le seul facteur capable de prédire votre satisfaction de couple dans 10 ans - Pourquoi utiliser tous vos jours de vacances booste vos chances d’obtenir une augmentation - Pourquoi vous devriez garder une jolie photo de bébé dans votre porte-monnaie - Comment décider si vous devriez quitter votre travail - Et plus de 740 autres savoirs utiles ! Astuces pour la vie se veut être le dernier livre dont vous aurez besoin pour améliorer votre vie. En se servant de recherches prouvées par le temps, il s’efforce d’être un guide infai
Astuces pour réussir vos études
by James Christiansen Essaid BahriNous avons tous besoin, à un moment ou à un autre de notre vie, d’étudier, que ce soit pour terminer nos études secondaires, pour obtenir un diplôme des études supérieures, pour réussir un examen professionnel pour progresser dans notre carrière ou tout simplement pour passer le permis de conduire. On y passe tous. Cependant, il n'y a pas de règles précises ou de lignes directrices sur la manière dont nous réussissons nos études ou sur comment garantir que nos efforts soient récompensés par une moyenne de passage ou, mieux encore, par une note impressionnante. Par ailleurs, nous sommes tous différents les uns des autres. Un monde dans lequel nous serions tous identiques serait un monde ennuyeux, et ce qui vous réussit, ne fonctionne pas nécessairement aussi bien pour une autre personne. Le but de ce livre est à la fois de vous aider à discerner ce qui vous convient le mieux en ce qui concerne l’environnement, les méthodes et les ressources pour des études réussies, et à définir la meilleure façon d’utiliser et de valoriser votre temps le mieux possible. Après tout, peu d'entre nous se délecteront particulièrement de toute la rigueur nécessaire aux études. Nous ferions beaucoup mieux de nous adonner à quelque chose de plus intéressant !
Astuces Pro de la Ligne de Commande Bash
by Jason Cannon Avinash MayaramSi vous vous êtes déjà dit, « Il doit y avoir une meilleure façon de faire cela », alors lisez la suite. Ayant utilisé le shell Bash presque tous les jours, depuis plus de 15 ans, j’ai accumulé plusieurs astuces de la ligne de commande qui m’ont économisé du temps et de la frustration. Astuces Pro de la Ligne de Commande Bash est une collection de 10 techniques que vous pouvez utiliser immédiatement pour augmenter votre efficacité sur la ligne de commande. Voici ce que vous apprendrez en lisant Astuces Pro de la Ligne de Commande Bash : Astuce 1 : Saisie semi-automatique par Tabulation Astuce 2 : Accéder au Répertoire Précédent Astuce 3 : Réutiliser le Dernier Élément de la Précédente Ligne de Commande Astuce 4 : Relancer une Commande Qui Commence par une Chaîne donnée Astuce 5 : Substitution de Commande Astuce 6 : Utiliser une Boucle pour à la Ligne de Commande Astuce 7 : Relancer la Commande Précédente avec les Privilèges Root Astuce 8 : Relancer la Commande Précédente En Substituant une Chaîne Astuce 9 : Réutiliser un Mot sur la Même Ligne de Commande Astuce 10 : Corriger les Fautes de frappe et Raccourcir les Longues Commandes avec des Alias