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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues
Carbon (C), Nitrogen (N) and Phosphorus (P) are three of the most important elements used to build living beings, and their uptake from the environment is consequently essential for all organisms. Photosynthesis is the process in which plants absorb atmospheric C as they grow and convert it to biomass. However, plants acquire N and P only when these are available in the soil solution, which makes these elements the most limiting nutrients in plant growth and productivity in most ecosystems. When plant residues and roots decompose, the C, N and P they contain is transformed primarily into soil organic matter (SOM) or C and N can release to the atmosphere. Recent interest on the global C, N and P cycles has focused attention on the different proportion of terrestrial C, N and P stored in different ecosystem pools. Cuatro Cienegas represents an exceptional place, since the plants are not the base of the food web, they are the microbial community, that recycle the elements essential for life. In this book we describe how this is an analog of early Earth.
Adaptive management is an approach to managing social-ecological systems that fosters learning about the systems being managed and remains at the forefront of environmental management nearly 40 years after its original conception. Adaptive management persists because it allows action despite uncertainty, and uncertainty is reduced when learning occurs during the management process. Often termed "learning by doing", the allure of this management approach has entrenched the concept widely in agency direction and statutory mandates across the globe. This exceptional volume is a collection of essays on the past, present and future of adaptive management written by prominent authors with long experience in developing, implementing, and assessing adaptive management. Moving forward, the book provides policymakers, managers and scientists a powerful tool for managing for resilience in the face of uncertainty.
This volume provides broad coverage of computational and mathematical techniques and concepts related to the field of comparative genomics. The topics covered in the chapters range from those concerned with general techniques and concepts that apply to all organisms to others that are more specialized, covering specific biological systems such as viruses, Drosophila, and Homo sapiens. Written in the highly successful Methods in Molecular Biology series format, by authors who are active researchers in the field, many chapters include step-by-step procedures, which illustrate practical applications of the techniques described. Cutting-edge and thorough, Comparative Genomics: Methods and Protocols should be useful to students and researchers in the continually growing and exciting field of comparative genomics.
"Plant Chemical Genomics: Methods and Protocols ," expert researchers in the field detail many of the techniques used for identification of bioactive compounds from a large selection of fields in plant biology including plant pathogenesis, immune responses, small RNA processing, endomembrane trafficking, lipids, plant hormone signaling and cell wall. The presentation of these and other examples as well as synthetic chemistry, computation and target identification provides a comprehensive overview of the practical aspects of chemical biology that are possible in plant systems. Small molecules and natural products that produce a phenotype in plants have been known for decades. The agrichemical industry has utilized small molecules based on known natural molecules such as auxins, cytokinins, abscissic acid and other growth regulators. In recent years, the screening and characterization of novel small molecules has enhanced our understanding of protein function, metabolic, signaling and endomembrane pathways, and their interactions in basic plant research. Written in the highly successful "Methods in Molecular Biology "series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls.
Written to satisfy a wide audience, from basic scientist to clinical researcher, this volume explores such varied concepts as: the influence of CBF in the pathotrajectory of TBI, modeling TBI as a means to understand underlying pathological states associated with brain injury victims, disrupted vasculature following head trauma and advanced imaging techniques, vasoreactive substances underlying disrupted blood flow, the role of age and sex on injury outcome, and the latest pre-clinical rationale for focusing on CBF and strategies to improve blood flow as a means to improve outcome in patients suffering the effects of TBI.
This volume presents up-to-date methods that allow primary stem cells from a variety of sources to be isolated, cultured in vitro, detected and measured for specific applications. These applications range from those in basic, stem cell and veterinary research to toxicology, cellular therapy and regenerative medicine. There is a slight bias towards the blood-forming system as more is known about the blood-forming or hematopoietic system than any other primary stem cell system. These unique properties and characteristics are discussed and examined, mostly at the cellular level and in detail in this book. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and accessible, Stem Cell Protocols provides novices with the fundamentals necessary to develop new technologies necessary for basic and clinical research in the future, and will aid professionals in finding new methodologies to provide a wider viewpoint and an even greater scope for their own research.
Written by an international team of leading experts in neuroscience, this book presents an overview of some of the main schools of thought as well as current research trends in neuroscience. It focuses on neural top-down causation applied to hot topics like consciousness, emotions, the self and the will, action and behavior, neural networks, brains and society. A special feature of the book is pertinent presentations and lively discussions on the topic. The book provides the reader with invaluable information on what the latest research is in this field and will enable the reader to gain considerable amount of knowledge as well as hints for further enquiry. This is the first book on the topic of neuroscience and top-down causation, and is written at a level that will interest both academics and the general readers. The extensive and lively discussions included in the book offer the reader a clear idea of the research in this field, and what will emerge as the main trends.
This book offers a self-study program on how mathematics, computer science and science can be profitably and seamlessly intertwined. This book focuses on two variable ODE models, both linear and nonlinear, and highlights theoretical and computational tools using MATLAB to explain their solutions. It also shows how to solve cable models using separation of variables and the Fourier Series.
How Creativity Happens In The Brain is about the brain mechanisms of creativity, how a grapefruit-sized heap of meat crackling with electricity manages to be so outrageously creative. It has a sharp focus: to stick exclusively to sound, mechanistic explanations and convey what we can, and cannot, say about how brains give rise to creative ideas.
Collectively, neurodegenerative diseases are characterized by chronic and progressive loss of neurons in discrete areas of the brain, producing debilitating symptoms such as dementia, loss of memory, loss of sensory or motor capability, decreased overall quality of life eventually leading to premature death. Two types of cell death are known to occur during neurodegeneration: (a) apoptosis and (b) necrosis. The necrosis is characterized by the passive cell swelling, intense mitochondrial damage with rapid loss of ATP, alterations in neural membrane permeability, high calcium influx, and disruption of ion homeostasis. This type of cell death leads to membrane lysis and release of intracellular components that induce inflammatory reactions. Necrotic cell death normally occurs at the core of injury site. In contrast, apoptosis is an active process in which caspases (a group of endoproteases with specificity for aspartate residues in protein) are stimulated. Apoptotic cell death is accompanied by cell shrinkage, dynamic membrane blebbing, chromatin condensation, DNA laddering, loss of phospholipids asymmetry, low ATP levels, and mild calcium overload. This type of cell death normally occurs in penumbral region at the ischemic injury site and in different regions in various neurodegenerative diseases.
The application of modern genomic approaches to research on halophilic Archaea and Bacteria and their viruses in recent years has yielded fascinating insights into the adaptations and evolution of these unique organisms. This book highlights current genetics and genomics research to provide a timely overview.
This volume reviews numerous reaction mechanisms and applications of nucleic acids with catalytic activity. Written by an interdisciplinary team of authors, it provides an essential overview of these acids' fundamental aspects, while also addressing associated methodologies such as nucleic acid enzyme engineering, peroxidase-mimicking DNAzymes and Aptazymes. After the discovery of natural ribozymes - RNA molecules that mediate the cleavage and formation of phosphodiester bonds and the formation of peptide bonds - numerous artificial ribozymes with altered catalytic activities were produced by in vitro and in vivo selection. Unlike ribozymes, DNAzymes do not occur in nature. Although the catalytic activity of nucleic acid enzymes is usually much slower than that of proteins, nucleic acid enzymes with comparable catalytic activity have been obtained using stringent selection processes. The key advantages of these enzymes: they are e.g. smaller, easier to produce and purify than proteins, and can withstand denaturation, e.g. by heat. Over the last few years, the number of publications on the applications of enzymatic nucleic acids has grown steadily. Summarizing the fundamentals and applications of these acids, this book will not only be an excellent resource for experts in the field but will also guide young researchers just starting out in this significant area.
The primary purpose of this book and its companion volume The Behavioral Genetics of Nicotine and Tobacco is to explore the ways in which recent studies on nicotine and its role in tobacco addiction have opened our eyes to the psychopharmacological properties of this unique and fascinating drug. While The Behavioral Genetics of Nicotine and Tobacco considers the molecular and genetic factors which influence behavioral responses to nicotine and how these may impact on the role of nicotine in tobacco dependence, the present book focuses on the complex neural and psychological mechanisms that mediate nicotine dependence in experimental animal models and their relationship to tobacco addiction in humans. These volumes will provide readers a contemporary overview of current research on nicotine psychopharmacology and its role in tobacco dependence from leaders in this field of researchand will hopefully prove valuable to those who are developing their own research programmes in this important topic.
Why do females in male-philopatric species seem to show larger variation in their life history strategies than males in female-philopatric species? Why did females in human societies come to show enormous variation in the patterns of marriage, residence and mating activities? To tackle these important questions, this book presents the latest knowledge about the dispersing females in male-philopatric non-human primates and in human societies. The non-human primates that are covered include muriquis, spider monkeys, woolly monkeys, gorillas, chimpanzees, bonobos and some species of colobine monkeys. In these non-human primate species females typically leave their natal group before sexual maturation and start reproduction in other groups into which they immigrate. However, there is a large variation as some females may breed in their natal group with some risks of inbreeding with their male relatives and some females may associate with males of multiple groups at the same time after leaving their natal group. Such variation seems to provide better strategies for reproduction depending on local circumstances. Although knowledge about female dispersal patterns and life history is indispensable for understanding the dynamic structure of primate societies, it is still not known how females behave after leaving their natal groups, how many groups they visit before finally settling down and which kinds of groups they choose to immigrate into, due to the large variation and flexibility and the difficulty of tracking females after natal dispersal. To encourage further progress in this important field, this volume provides new insights on evolution of female dispersal by describing factors influencing variations in the dispersal pattern across primates and a hypothesis for the formation of human families from the perspectives of female life history. This book is recommended reading for researchers and students in primatology, anthropology, animal behavior and evolution and for anyone interested in primate societies and human evolution.
With an emphasis on applications of computational models for solving modern challenging problems in biomedical and life sciences, this book aims to bring collections of articles from biologists, medical/biomedical and health science researchers together with computational scientists to focus on problems at the frontier of biomedical and life sciences. The goals of this book are to build interactions of scientists across several disciplines and to help industrial users apply advanced computational techniques for solving practical biomedical and life science problems. This book is for users in the fields of biomedical and life sciences who wish to keep abreast with the latest techniques in signal and image analysis. The book presents a detailed description to each of the applications. It can be used by those both at graduate and specialist levels.
It is widely recognized that analytical technologies and techniques
are playing a pioneering role in a range of today's foremost
challenging scientific endeavours, including especially biological
and biomedical research. Worthy of mention, for example, are the
role that high performance separation techniques played in mapping
the human genome and the pioneering work done within mass
spectrometry.
A number of techniques to study ion channels have been developed since the electrical basis of excitability was first discovered. Ion channel biophysicists have at their disposal a rich and ever-growing array of instruments and reagents to explore the biophysical and structural basis of sodium channel behavior. Armed with these tools, researchers have made increasingly dramatic discoveries about sodium channels, culminating most recently in crystal structures of voltage-gated sodium channels from bacteria. These structures, along with those from other channels, give unprecedented insight into the structural basis of sodium channel function. This volume of the Handbook of Experimental Pharmacology will explore sodium channels from the perspectives of their biophysical behavior, their structure, the drugs and toxins with which they are known to interact, acquired and inherited diseases that affect sodium channels and the techniques with which their biophysical and structural properties are studied.
This text is a comprehensive look at the current knowledge on stem cell application for vision loss, showcasing different types of stem cells (adult, embryonic, iPSCs) for diseases of the front and the back of the eye. It also highlights data obtained in various models from fish to human, as well as from the bionic eye project for vision regeneration. This volume in the Stem Cell Biology and Regenerative Medicine series is essential reading for stem cell biologists, ophthalmologists, advanced and graduate students, in addition to academics and medical staff who work in these disciplines.
A comprehensive collection of the most recent knowledge on the biological bases of various kinds of epilepsies and modern clinical approaches to their treatment. Epilepsy affects about 0.5-1% of the world's population (about 50,000,000 individuals) and the main goal of its treatment is to eliminate seizures without creating side effects. Despite numerous advances in the treatment of epilepsy and the approval of several new antiepileptic drugs, about 30% of patients continue to experience recurrent seizures which are medically, physically, and/or socially disabling. The editor of this volume hopes that by bridging the gap between the fundamental biology of epilepsy and its clinical implications he might spur further research and treatment options.
The development of treatment strategies that can help patients with spinal cord injury to regain lost functions and an improved quality of life is a major medical challenge, and experimental spinal cord research has to meet these challenges by resolving fundamental problems, establishing a basis for possible novel treatment strategies of spinal cord injury, and motivating their clinical translation. In "Animal Models of Spinal Cord Repair," expert researchers examine a broad range of experimental models for research on spinal cord injury, how they have contributed to our current state of knowledge, and what their advantages are in the further advancement of spinal cord repair. With models from simple lamprey to non-human primates, the information presented is intended to guide the implementation of animal models for spinal cord repair as well as to raise the awareness of the relevance of experimental models which may not be in the current mainstream of this research. As a part of the "Neuromethods" series, this work contains the kind of detailed description and implementation advice to guarantee successful results in the laboratory. Comprehensive and cutting-edge, "Animal Models of Spinal Cord Repair" presents the background information and hands-on methods descriptions, as well as the basic and clinical issues, needed to stimulate and guide researchers with different backgrounds towards the development of improved strategies for functionally relevant repair of the injured human spinal cord."
These papers on Intelligent Data Analysis and Management (IDAM) examine issues related to the research and applications of Artificial Intelligence techniques in data analysis and management across a variety of disciplines. The papers derive from the 2013 IDAM conference in Kaohsiung ,Taiwan. It is an interdisciplinary research field involving academic researchers in information technologies, computer science, public policy, bioinformatics, medical informatics, and social and behavior studies, etc. The techniques studied include (but are not limited to): data visualization, data pre-processing, data engineering, database mining techniques, tools and applications, evolutionary algorithms, machine learning, neural nets, fuzzy logic, statistical pattern recognition, knowledge filtering, and post-processing, etc.
This book presents an overview of the RNA networks controlling gene expression in fungi highlighting the remaining questions and future challenges in this area. It covers several aspects of the RNA-mediated mechanisms that regulate gene expression in model yeasts and filamentous fungi, organisms of great importance for industry, medicine and agriculture. It is estimated that there are more than one million fungal species on the Earth. Despite their diversity (saprophytic, parasitic and mutualistic), fungi share common features distinctive from plants and animals and have been grouped taxonomically as an independent eukaryotic kingdom. In this book, 15 chapters written by experts in their fields cover the RNA-dependent processes that take place in a fungal cell ranging from formation of coding and non-coding RNAs to mRNA translation, ribosomal RNA biogenesis, gene silencing, RNA editing and epigenetic regulation.
This book presents the current state of knowledge on the origin and differentiation of cell lines involved in the development of the vertebrate male and female gonads with particular emphasis on the mouse. It also discusses the processes leading to the testis- and ovary-specific structures and functions. The individual chapters review the origin and differentiation of the somatic cells of the genital ridges; the formation and migration of primordial germ cells in mouse and man; the gonadal supporting cell lineage and mammalian sex determination; differentiation of Sertoli and granulosa cells; mesonephric cell migration into the gonads and vascularization; origin and differentiation of androgen-producing cells in the gonads; germ cell commitment to the oogenic versus spermatogenic pathway and the role of retinoic acid; ovarian folliculogenesis; control of oocyte growth and development by intercellular communication within the follicular niche; biology of the Sertoli cell in the fetal, pubertal and adult mammalian testis; mechanisms regulating spermatogonial differentiation; stem cells in mammalian gonads; the role of microRNAs in cell differentiation during gonad development; human sex development and its disorders; as well as methods for the study of gonadal development. |
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