Download or read book The Large Scale Structure of Space Time written by S. W. Hawking and published by Cambridge University Press. This book was released on 1975-02-27 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Einstein's General Theory of Relativity leads to two remarkable predictions: first, that the ultimate destiny of many massive stars is to undergo gravitational collapse and to disappear from view, leaving behind a 'black hole' in space; and secondly, that there will exist singularities in space-time itself. These singularities are places where space-time begins or ends, and the presently known laws of physics break down. They will occur inside black holes, and in the past are what might be construed as the beginning of the universe. To show how these predictions arise, the authors discuss the General Theory of Relativity in the large. Starting with a precise formulation of the theory and an account of the necessary background of differential geometry, the significance of space-time curvature is discussed and the global properties of a number of exact solutions of Einstein's field equations are examined. The theory of the causal structure of a general space-time is developed, and is used to study black holes and to prove a number of theorems establishing the inevitability of singualarities under certain conditions. A discussion of the Cauchy problem for General Relativity is also included in this 1973 book.

Download or read book Cosmeceuticals and Active Cosmetics written by Raja K Sivamani and published by CRC Press. This book was released on 2015-09-18 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmeceuticals and Active Cosmetics discusses the science of nearly two dozen cosmeceuticals used today. This third edition provides ample evidence on specific cosmeceutical substances, their classes of use, skin conditions for which they are used, and points of interest arising from other considerations, such as toxicology and manufacturing. The book discusses both cosmetic and therapeutic uses of cosmeceuticals for various conditions including rosacea, dry skin, alopecia, eczema, seborrheic dermatitis, purpura, and vitiligo. Active ingredients in the following products are discussed: caffeine, curcumin, green tea, Rhodiola rosea, milk thistle, and more. Also covered are topical peptides and proteins, amino acids and derivatives, antioxidants, vitamins E and C, niacinamide, botanical extracts, and biomarine actives. Providing ample scientific references, this book is an excellent guide to understanding the science behind the use of cosmeceuticals to treat a variety of dermatological conditions.

Download or read book Spanish Grail Fragments written by Karl Pietsch and published by . This book was released on 1924 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tango Lessons written by Marilyn G. Miller and published by Duke University Press. This book was released on 2014-02-07 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: From its earliest manifestations on the street corners of nineteenth-century Buenos Aires to its ascendancy as a global cultural form, tango has continually exceeded the confines of the dance floor or the music hall. In Tango Lessons, scholars from Latin America and the United States explore tango's enduring vitality. The interdisciplinary group of contributors—including specialists in dance, music, anthropology, linguistics, literature, film, and fine art—take up a broad range of topics. Among these are the productive tensions between tradition and experimentation in tango nuevo, representations of tango in film and contemporary art, and the role of tango in the imagination of Jorge Luis Borges. Taken together, the essays show that tango provides a kaleidoscopic perspective on Argentina's social, cultural, and intellectual history from the late nineteenth to the early twenty-first centuries. Contributors. Esteban Buch, Oscar Conde, Antonio Gómez, Morgan James Luker, Carolyn Merritt, Marilyn G. Miller, Fernando Rosenberg, Alejandro Susti

Download or read book American Numismatic Society Magazine written by and published by . This book was released on 2004 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Free Women of Spain written by Martha A. Ackelsberg and published by AK Press. This book was released on 2005 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: With fists upraised, Mujeres Libres struggled for their own emancipation and the freedom of all.

Download or read book America s Climate Choices written by National Research Council and published by National Academies Press. This book was released on 2011-06-11 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is occurring. It is very likely caused by the emission of greenhouse gases from human activities, and poses significant risks for a range of human and natural systems. And these emissions continue to increase, which will result in further change and greater risks. America's Climate Choices makes the case that the environmental, economic, and humanitarian risks posed by climate change indicate a pressing need for substantial action now to limit the magnitude of climate change and to prepare for adapting to its impacts. Although there is some uncertainty about future risk, acting now will reduce the risks posed by climate change and the pressure to make larger, more rapid, and potentially more expensive reductions later. Most actions taken to reduce vulnerability to climate change impacts are common sense investments that will offer protection against natural climate variations and extreme events. In addition, crucial investment decisions made now about equipment and infrastructure can "lock in" commitments to greenhouse gas emissions for decades to come. Finally, while it may be possible to scale back or reverse many responses to climate change, it is difficult or impossible to "undo" climate change, once manifested. Current efforts of local, state, and private-sector actors are important, but not likely to yield progress comparable to what could be achieved with the addition of strong federal policies that establish coherent national goals and incentives, and that promote strong U.S. engagement in international-level response efforts. The inherent complexities and uncertainties of climate change are best met by applying an iterative risk management framework and making efforts to significantly reduce greenhouse gas emissions; prepare for adapting to impacts; invest in scientific research, technology development, and information systems; and facilitate engagement between scientific and technical experts and the many types of stakeholders making America's climate choices.

Download or read book Paper Cadavers written by Kirsten Weld and published by Duke University Press. This book was released on 2014-03-21 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Paper Cadavers, an inside account of the astonishing discovery and rescue of Guatemala's secret police archives, Kirsten Weld probes the politics of memory, the wages of the Cold War, and the stakes of historical knowledge production. After Guatemala's bloody thirty-six years of civil war (1960–1996), silence and impunity reigned. That is, until 2005, when human rights investigators stumbled on the archives of the country's National Police, which, at 75 million pages, proved to be the largest trove of secret state records ever found in Latin America. The unearthing of the archives renewed fierce debates about history, memory, and justice. In Paper Cadavers, Weld explores Guatemala's struggles to manage this avalanche of evidence of past war crimes, providing a firsthand look at how postwar justice activists worked to reconfigure terror archives into implements of social change. Tracing the history of the police files as they were transformed from weapons of counterinsurgency into tools for post-conflict reckoning, Weld sheds light on the country's fraught transition from war to an uneasy peace, reflecting on how societies forget and remember political violence.

Download or read book The Social Biology of Microbial Communities written by Institute of Medicine and published by National Academies Press. This book was released on 2013-01-10 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with the germ theory of disease in the 19th century and extending through most of the 20th century, microbes were believed to live their lives as solitary, unicellular, disease-causing organisms . This perception stemmed from the focus of most investigators on organisms that could be grown in the laboratory as cellular monocultures, often dispersed in liquid, and under ambient conditions of temperature, lighting, and humidity. Most such inquiries were designed to identify microbial pathogens by satisfying Koch's postulates.3 This pathogen-centric approach to the study of microorganisms produced a metaphorical "war" against these microbial invaders waged with antibiotic therapies, while simultaneously obscuring the dynamic relationships that exist among and between host organisms and their associated microorganisms-only a tiny fraction of which act as pathogens. Despite their obvious importance, very little is actually known about the processes and factors that influence the assembly, function, and stability of microbial communities. Gaining this knowledge will require a seismic shift away from the study of individual microbes in isolation to inquiries into the nature of diverse and often complex microbial communities, the forces that shape them, and their relationships with other communities and organisms, including their multicellular hosts. On March 6 and 7, 2012, the Institute of Medicine's (IOM's) Forum on Microbial Threats hosted a public workshop to explore the emerging science of the "social biology" of microbial communities. Workshop presentations and discussions embraced a wide spectrum of topics, experimental systems, and theoretical perspectives representative of the current, multifaceted exploration of the microbial frontier. Participants discussed ecological, evolutionary, and genetic factors contributing to the assembly, function, and stability of microbial communities; how microbial communities adapt and respond to environmental stimuli; theoretical and experimental approaches to advance this nascent field; and potential applications of knowledge gained from the study of microbial communities for the improvement of human, animal, plant, and ecosystem health and toward a deeper understanding of microbial diversity and evolution. The Social Biology of Microbial Communities: Workshop Summary further explains the happenings of the workshop.

Download or read book Proton Pump Inhibitors written by Lars Olbe and published by Birkhäuser. This book was released on 2012-12-06 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhibition of the proton pump in the parietal cells has been established as the main therapeutic principle in the treatment of acid-related diseases, such as peptic ulcer and gastro-oesophageal reflux. The proton pump inhi bitors are tailored for their purpose. They accumulate in the target cell, are activated by acid and bind strongly to the specific target - the proton pump. The clinical superiority of the proton pump inhibitors is due not only to their high efficacy but also to the long duration of the acid inhibition in comparison with other antisecretory drugs. At present when drug discovery mostly relies on identification and characterization of potential targets by genome research, molecular biology, combinatorial chemistry and automated screening, it seems worthwhile to present the development of the tITst proton pump inhibitor - omeprazol- starting from a chemical structure with an observed antisecretory effect but also severe toxic effects that had to be eliminated. As always, basic and applied research operate luind in hand to optimize the delicate balance be tween efficacy and safety of a new drug. This goal often involves time and many different specialists.

Download or read book Silvics of Forest Trees of the United States written by and published by . This book was released on 1965 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conserving the World s Biological Diversity written by Jeffrey A. McNeely and published by International Union for Conservation of Nature and Natural. This book was released on 1990 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hippocrates in Context written by P.J. van der Eijk and published by BRILL. This book was released on 2018-07-17 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers studies the Hippocratic writings in their relationship to the intellectual, social, cultural and literary context in which they were written, as well as the impact and reception of Hippocratic thought in later antiquity and the early modern period.

Download or read book Mushrooms traded as food Vol II sec 2 written by Jørn Gry and published by Nordic Council of Ministers. This book was released on 2014-07-11 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mushrooms recognised as edible have been collected and cultivated for many years. In the Nordic countries, the interest for eating mushrooms has increased. In order to ensure that Nordic consumers will be supplied with safe and well characterised, edible mushrooms on the market, this publication aims at providing tools for the in-house control of actors producing and trading mushroom products. The report is divided into two volumes: a. Volume I: “Mushrooms traded as food - Nordic questionnaire and guidance list for edible mushrooms suitable for commercial marketing b. Volume II: Background information, with general information in section 1 and in section 2, risk assessments of more than 100 mushroom species All mushrooms on the lists have been risk assessed regarding their safe use as food, in particular focusing on their potential content of bioactive constituents.

Download or read book Literary and Epigraphical Testimonia written by Richard Ernest Wycherley and published by . This book was released on 2011-10-01 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: (American School of Classical Studies 1973)

Download or read book Vollst ndiges Englisch deutsches und Deutschenglisches W rterbuch 3 Aufl written by Johann Gottfried Flügel and published by . This book was released on 1856 with total page 1748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Arts Humanities Citation Index written by and published by . This book was released on 1997 with total page 1846 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary index covering the journal literature of the arts and humanities. It fully covers 1,144 of the world's leading arts and humanities journals, and it indexes individually selected, relevant items from over 6,800 major science and social science journals.