Biovidenskab: generelle emner

A landmark work of 19th-century science, Vestiges of the Natural History of Creation was one of the first books to present a comprehensive theory of evolution to a popular audience. Drawing on the latest scientific discoveries and his own observations, Chambers argued that the cosmos and all life on Earth had evolved over time through natural processes. This edition also includes Chambers' sequel, Explanations: A Sequel to the Vestiges, which addressed criticisms of the original work and presented further evidence for evolution.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 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.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.

Published in 1922, this groundbreaking work in the field of biogeography offers a new perspective on the origins and distribution of species around the world. Author J.C. Willis argues that there is a close relationship between the age of a particular area and the number and diversity of species found there. Filled with detailed maps and charts, this book remains an essential work for anyone interested in the science of evolution and the natural world.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 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.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.

Originally published in 1918, this book presents Osborn's theory of the origin and evolution of life based on the principles of thermodynamics. Osborn argues that life is a manifestation of the interactions between energy and matter, and that the evolution of life is a result of the increasing complexity of these interactions. A groundbreaking work of science and philosophy, The Origin and Evolution of Life remains relevant to scientists and thinkers today.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 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.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.

This unique book focuses on environmental degradation in Asian countries including land degradation and soil erosion. The land degradation covers assessing environmental degradation using geospatial technology, land use land cover mapping, environmental and anthropogenic degradation, assessment of land degradation vulnerability, evaluation of the impact of earthquake and the environmental control of the sand dunes.It also addresses the soil degradation and environmental pollution and presents several case studies such as tectonic activity and erosion, assessment of aircraft sound, soil degradation assessment for the arid territories, soil pollution, waste engine oil contamination, soil degradation, soil erosion modelling, land use and land cover change and its effect on soil erosion changes. Additionally, the book discusses the impact of climate change, and human activities including urban environmental quality, air pollution and the impact of armed conflict on the environment. Moreover, topics such as vegetation degradation including forest changes, hydrological and agricultural drought are presented. The book includes authors and scientists from Egypt, Iraq, Iran, India, Mongolia, United Arab Emirates, Uzbekistan, Republic of Kazakhstan, USA, Turkey, South Africa, Italy, China, Malaysia, Poland and Russia. Graduate students, researchers, engineers, policy planners, policymakers and stockholders could benefit from the information and the knowledge in this book.

Nahtoderlebnisse, Sterbebett-Visionen, Medienkundgebungen in Séancen, Hypnoserückführungen, Erinnerungen von Kindern an ein früheres Leben und außerkörperliche Erfahrungen werden von manchen Autoren als Hinweise auf ein Leben nach dem körperlichen Tod angeführt. Kritiken und Gegenkritiken dieser Argumente werden ausführlich einander gegenübergestellt und verschiedene Theorien beider Seiten sowie von Zwischenpositionen besprochen, wodurch zum Schluss die Frage nach dem Überleben vorsichtig positiv beantwortet wird.

This book addresses the growing need for a standard textbook on input-output analysis (IO) within the context of industrial ecology (IE). IE is a discipline dedicated to providing system-wide, quantitative, and science-based solutions for sustainable development challenges, and its global importance has been rapidly increasing. The primary analytical tools of IE are life-cycle assessment (LCA) and material flow analysis (MFA). IO has been widely utilized for LCA since the late 1990s and is increasingly being applied to MFA as well. This trend is being driven by the greater availability and application of global IO data, which now includes an ever-expanding number of countries and regions. Despite the presence of excellent textbooks on IO and IE individually, there is a lack of resources that integrate these two fields. This book seeks to fill that gap by focusing on the practical application of IO to IE, specifically in the context of LCA and MFA. By combining these methodologies, readers can gain valuable insights into sustainable development issues and contribute to more effective solutions in the field of IE.

With one volume each year, this series keeps scientists and advanced students informed of the latest developments and results in all areas of the plant sciences. This latest volume includes reviews on plant physiology, biochemistry, genetics and genomics, forests, and ecosystems.

This book is the result of extensive archival research conducted on the Collection "e;Silvano Arieti Papers"e; held in the Manuscript Division of the Library of Congress, Washington, D.C. It offers readers the first scientific biography of the renowned Italian-born psychiatrist Silvano Arieti, who in 1939 emigrated to the United States, where he gained fame and recognition for his work on schizophrenia. In 1975, the second edition of his book, Interpretation of Schizophrenia, received the National Book Award in Science.The book has been cast as a twofold journey: an exploration of the life of a psychiatrist and scientist and an overview of twentieth century psychiatry and its significant issues, debates, and transformations. Readers will find useful insights for a better understanding of psychiatry as a discipline capable of portraying the complexity of human nature. 

This book presents deliberations on molecular and genomic mechanisms underlying the interactions of crop plants to the abiotic stresses caused by heat, cold, drought, flooding, submergence, salinity, acidity, etc., important to develop resistant crop varieties. Knowledge on the advanced genetic and genomic crop improvement strategies including molecular breeding, transgenics, genomic-assisted breeding, and the recently emerging genome editing for developing resistant varieties in technical crops is imperative for addressing FHNEE (food, health, nutrition, energy, and environment) security. Whole genome sequencing in many of these crops followed by genotyping-by-sequencing has provided precise information regarding the genes conferring resistance useful for gene discovery, allele mining, and shuttle breeding which in turn opened up the scope for 'designing' crop genomes with resistance to abiotic stresses.The ten chapters each dedicated to a technical crop and one chapter devoted to a crop group in this volume elucidate different types of abiotic stresses and their effects on and interaction with the crops; enumerate the available genetic diversity with regard to abiotic stress resistance among available cultivars; illuminate the potential gene pools for utilization in interspecific gene transfer; present brief on classical genetics of stress resistance and traditional breeding for transferring them to their cultivated counterparts; depict the success stories of genetic engineering for developing abiotic stress-resistant crop varieties; discuss on molecular mapping of genes and QTLs underlying stress resistance and their marker-assisted introgression into elite varieties; enunciate different genomics-aided techniques including genomic selection, allele mining, gene discovery, and gene pyramiding for developing adaptive crop varieties with higher quantity and quality of yields, and also elaborate some case studies on genome editing focusing on specific genes for generating abiotic stress-resistant crops. 

Aspects of Brazilian Floristic Diversity: From Botany to Traditional Communities offers a unique approach in floristic diversity of the Neotropical region, specifically encompassing the Brazilian flora. This volume combines both theoretical and applied aspects of scientific making knowledge in different perspectives of Botanical Science. In this volume, botanical specialists discuss the many different approaches of taxonomic, reproductive, ecological and ethnobotanical aspects of Brazilian floristic diversity, thereby enlightening the global interest in Neotropical species, in particular those from the Brazilian territory. The book addresses relevant questions from many points of view, including anatomy, reproduction, palinology, conservation and ethnobotany, creating an in-depth perception of the flora in its complexity constitution.The book provides a comprehensive outlook on Botany Sciences, considering the history and traditional knowledge of plants, and relating it to contemporary problems and concerns of flora conservation today. With this current perspective, this book reaches a vast audience from the research lines of Botany, and encompasses a broader and interdisciplinary understanding of Aspects of Brazilian Floristic Diversity.

Selfie: Poetry, Social Change & Ecological Connection presents the first general theory that links poetry in environmental thought to poetry as an environment. James Sherry accomplishes this task with a network model of connectivity that scales from the individual to social to environmental practices. Selfie demonstrates how parts of speech, metaphor, and syntax extend bidirectionally from the writer to the world and from the writer inward to identities that promote sustainable practices. Selfie shows how connections in the biosphere scale up from operating within the body, to social structures, to the networks that science has identified for all life. The book urges readers to construct plural identifications rather than essential claims of identity in support of environmental diversity.

The North American Wildlife Conservation Model (NAM) is the driver of a strong anthropocentric stance, which has legalized an ongoing, annual exploitation of hundreds of millions of wild animals, who are killed in the United States through trapping, hunting and other lethal practices. Increasingly, the American public opposes the killing of wild animals for recreation, trophies and profit but has little-if any-knowledge of the Model. The purpose of this book is to empower the public with knowledge about the NAM's insufficiencies and to help expedite the shift from lethal to compassionate conservation, an endeavour urgently needed particularly under the threats of climate change, human population growth and accelerating plant and animal species extinctions.With a focus on trapping, this book exposes the NAM's belief in human supremacy and its consequences for wild animals and their ecosystems, the same value that is driving the ongoing global destruction of nature and accelerating species extinction. Motivated by a deep concern for wild animals who suffer and whose lives are extinguished each year by 'sportsmen and women', this book exposes the violent treatment of wild animals inherent in governmental-promoted hunting and trapping programs, while emphasizing the importance of empathy and compassion for other animals in conservation and in our lives.

Metabolic programs of individuals are key determinants for disease susceptibility and immune response. This book, edited by experts in the field, summarizes epigenetic signaling pathways that regulate metabolic programs associated with cancer and cancer-related secondary diseases.The first part of the book highlights key metabolic pathways that are implicated in cancer and provides a comprehensive overview on the carbohydrate, protein, lipid, amino- and nucleic acid metabolic pathways that are deregulated in cancer. Special attention is paid to the altered tumor micro-environment that is influenced by the metabolic milieu. Furthermore, the fundamental relationship between the cellular metabolic environment and cell death-mediated autophagy is discussed.The second part of the book covers our understanding of the fundamental epigenetic regulations that are implicated in controlling the metabolic programs in cancer cells. Many aspects of epigenetic regulation of non-coding RNAs as well as DNA/RNA methylation, which influencing metabolic homeostasis in cancer, are discussed in detail. Special emphasis is placed on the epigenetic regulation of the amino acid, glucose/carbohydrate metabolism and epigenetic regulation during hypoxia and its connection to cancer.Last but not least, the third part of the book covers small molecule modulators of histone modifying enzymes, which can be used as therapeutic tools. The readers learn about the cross-talk between epigenetics and immunometabolims, as well as the epigenetic regulation of oncometabolites to combat cancer.  Given its scope, the book will appeal to a broad readership interested in epigenetic, cancer and metabolic research.

This contributed volume explores the ways in which researchers engineer new biomaterials for the challenging problems of the peripheral and central nervous systems. These biomaterials are uniquely positioned for use in creating in vitro models of injury and disease, testing therapeutic treatments, understanding neural development, and mapping the multi-scalar environment of the brain. This book informs readers from biology, chemistry, materials science, engineering, and neuroscience on cutting edge research in engineering technologies, from fundamental material development through pre-clinical studies. The book also highlights target applications in three areas of research: (1) engineering neural models and materials, (2) probing biological underpinnings of neurological function and disease, and (3) designing therapeutic and diagnostic treatments for neurological disease. 

This book covers the latest developments in tissue electrical conductivity and current density imaging, increasingly popular as well as challenging applications of MRI. These applications are enabled by the acquisition of high-quality MR phase images. This book provides a practical description of the MRI physics needed to understand and acquire phase images in MRI and the key details required to reconstruct them into conductivity, current density or electric field distributions. Comprehensive details are provided about the electrical properties of biological tissues, computational modeling considerations, experimental methods, construction of non-biological and biological phantoms and MRI pulse sequences. An inclusive review of image reconstruction algorithms, and their potential applications is provided for applications directed at determining current density or electric fields, such as in transcranial DC or AC stimulation techniques; as well as electrical conductivity reconstructions that may be of use in quantitative MRI applications used to detect cancer or other pathologies. This is an excellent book for undergraduate and graduate students beginning to explore phase, current density, and conductivity imaging in MRI, and will also be of great use to researchers interested in the area of MR-based electrical property imaging.