Download or read book The Symbiotic Phenomenon written by Joanna Mikolajewska and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symbiotic stars were identified spectroscopically as M giants with a very strong He II 4686 emission line. After five decades of study by many astronomers, the first internatioinal meetings devoted to symbiotics were held at the University of Colorado (Boulder) and at the Haute Provence Observatory during the Summer of 1981. These conferences emphasized exciting new results obtained by modern satellite (EINSTEIN, IUE) and ground-based observatories. Although the vast majority of the participants were already fairly sure that symbiotics are almost certainly interacting binary systems, and not extremely peculiar single stars, it was not clear exactly which types of physical processes were needed to be invoked to explain their observed behaviour. Many were even worried that it might not be possible to clearly define a class of "symbiotic stars" , and thus establish a unique model applicable to any system. Since the publication of the Haute-Provence proceedings, our understanding of the physical processes occuring in symbiotic stars (and in related objects such as cataclysmic variables and compact planetary nebulae) has greatly improved. We now speak confidently of a "symbiotic phenomenon" , in which an evolved red giant and a hot companion object (usually thought to be an accreting main sequence star or a luminous white dwarf star) happily coexist.
Download or read book Microbial Symbioses written by Sebastien Duperron and published by Elsevier. This book was released on 2016-11-30 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants and animals have evolved ever since their appearance in a largely microbial world. Their own cells are less numerous than the microorganisms that they host and with whom they interact closely. The study of these interactions, termed microbial symbioses, has benefited from the development of new conceptual and technical tools. We are gaining an increasing understanding of the functioning, evolution and central importance of symbiosis in the biosphere. Since the origin of eukaryotic cells, microscopic organisms of our planet have integrated our very existence into their ways of life. The interaction between host and symbiont brings into question the notion of the individual and the traditional representation of the evolution of species, and the manipulation of symbioses facilitates fascinating new perspectives in biotechnology and health. Recent discoveries show that association is one of the main properties of organisms, making a more integrated view of biology necessary. Microbial Symbioses provides a deliberately “symbiocentric outlook, to exhibit how the exploration of microbial symbioses enriches our understanding of life, and the potential future for this discipline. Offers a concise summary of the most recent discoveries in the field Shows how symbiosis is acquiring a central role in the biology of the 21st century by transforming our understanding of living things Presents scientific issues, but also societal and economic related issues (biodiversity, biotechnology) through examples from all branches of the tree of life
Download or read book The Indian Medical Gazette written by and published by . This book was released on 1928 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Individuality written by Scott Lidgard and published by University of Chicago Press. This book was released on 2017-05-24 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Individuals are things that everybody knows—or thinks they do. Yet even scholars who practice or analyze the biological sciences often cannot agree on what an individual is and why. One reason for this disagreement is that the many important biological individuality concepts serve very different purposes—defining, classifying, or explaining living structure, function, interaction, persistence, or evolution. Indeed, as the contributors to Biological Individuality reveal, nature is too messy for simple definitions of this concept, organisms too quirky in the diverse ways they reproduce, function, and interact, and human ideas about individuality too fraught with philosophical and historical meaning. Bringing together biologists, historians, and philosophers, this book provides a multifaceted exploration of biological individuality that identifies leading and less familiar perceptions of individuality both past and present, what they are good for, and in what contexts. Biological practice and theory recognize individuals at myriad levels of organization, from genes to organisms to symbiotic systems. We depend on these notions of individuality to address theoretical questions about multilevel natural selection and Darwinian fitness; to illuminate empirical questions about development, function, and ecology; to ground philosophical questions about the nature of organisms and causation; and to probe historical and cultural circumstances that resonate with parallel questions about the nature of society. Charting an interdisciplinary research agenda that broadens the frameworks in which biological individuality is discussed, this book makes clear that in the realm of the individual, there is not and should not be a direct path from biological paradigms based on model organisms through to philosophical generalization and historical reification.
Download or read book Annual Report written by United Fruit Company. Medical Department and published by . This book was released on 1926 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by United Fruit Company. Medical Dept and published by . This book was released on 1926 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In the Light of Evolution written by National Academy of Sciences and published by Sackler Colloquium. This book was released on 2007 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.
Download or read book Evolutionary Phenomena in the Universe written by P. Giannone and published by Compositori. This book was released on 1991 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Royal Society of Medicine written by Royal Society of Medicine (Great Britain) and published by . This book was released on 1927 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises the proceedings of the various sections of the society, each with separate t.-p. and pagination.
Download or read book Microbes The Foundation Stone of the Biosphere written by Christon J. Hurst and published by Springer Nature. This book was released on 2021-05-01 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of essays discusses fascinating aspects of the concept that microbes are at the root of all ecosystems. The content is divided into seven parts, the first of those emphasizes that microbes not only were the starting point, but sustain the rest of the biosphere and shows how life evolves through a perpetual struggle for habitats and niches. Part II explains the ways in which microbial life persists in some of the most extreme environments, while Part III presents our understanding of the core aspects of microbial metabolism. Part IV examines the duality of the microbial world, acknowledging that life exists as a balance between certain processes that we perceive as being environmentally supportive and others that seem environmentally destructive. In turn, Part V discusses basic aspects of microbial symbioses, including interactions with other microorganisms, plants and animals. The concept of microbial symbiosis as a driving force in evolution is covered in Part VI. In closing, Part VII explores the adventure of microbiological research, including some reminiscences from and perspectives on the lives and careers of microbe hunters. Given its mixture of science and philosophy, the book will appeal to scientists and advanced students of microbiology, evolution and ecology alike.
Download or read book Archives of Dermatology and Syphilology written by and published by . This book was released on 1927 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cataclysmic Variables and Related Objects written by Margherita Hack and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume begins with an introductory chapter on general properties of cataclysmic variables. Chapters 2 through 5 of Part 1 are devoted to observations and interpretation of dwarf novae and nova-like stars. Chapters 6 through 10, Part 2, discuss the general observational properties of classical and recurrent novae, the theoretical models, and the characteristics and models for some well observed classical novae and recurrent novae. Chapters 11 through 14 of Part 3 are devoted to an overview of the observations of symbiotic stars, to a description of the various models proposed for explaining the symbiotic phenomenon, and to a discussion of a few selected objects, respectively. Chapter 15 briefly examines the many unsolved problems posed by the observations of the different classes of cataclysmic variables and symbiotic stars.
Download or read book Proceedings of the Society for Experimental Biology and Medicine written by Society for Experimental Biology and Medicine (New York, N.Y.) and published by . This book was released on 1926 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: List of members in each volume.
Download or read book Tourism and Hospitality Development Between China and EU written by Guojun Zeng and published by Springer. This book was released on 2014-10-16 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tourism and hospitality industry is facing a substantial amount of opportunities and challenges due to the globalization. The Third International Conference on Tourism and Hospitality between China and Spain (ICTCHS) provides a unique global forum for academics, thought leaders and key industry practitioners from diverse backgrounds and interests to meet, discuss and debate critical issues that will affect the future direction of tourism and hospitality research and practice.
Download or read book Fundamentals of Botany written by Charles Stuart Gager and published by Arkose Press. This book was released on 1916 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Annual Report United Fruit Company Medical Department written by United Fruit Company. Medical Department and published by . This book was released on 1926 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Sciences and the Unity of Science written by Olga Pombo and published by Springer Science & Business Media. This book was released on 2012-02-01 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science is a dynamic process in which the assimilation of new phenomena, perspectives, and hypotheses into the scientific corpus takes place slowly. The apparent disunity of the sciences is the unavoidable consequence of this gradual integration process. Some thinkers label this dynamical circumstance a ‘crisis’. However, a retrospective view of the practical results of the scientific enterprise and of science itself, grants us a clear view of the unity of the human knowledge seeking enterprise. This book provides many arguments, case studies and examples in favor of the unity of science. These contributions touch upon various scientific perspectives and disciplines such as: Physics, Computer Science, Biology, Neuroscience, Cognitive Psychology, and Economics.
