intechopen feb 2013 (111 resultados)

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Studies of herbivory provide important insights into fundamental questions in many areas of the biological sciences. The focus on natural systems is more effective for the prediction of potential changes in ecosystems, given that agricultural systems are designed to create an equilibrium that optimizes the productive process. Given the ramifications of the processes related to herbivory, studies based on complementary approaches are necessary for a better understanding of the different aspects of the ecological process. This book attempts to expand on these different aspects of herbivory by presenting a multidisciplinary approach to a number of different themes, focusing on topics that range from basic research in natural habitats to the intrinsic relationships between animals and plants in agricultural systems. 88 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book focuses on the current research in the area of rheology. Rheological characterizations are performed on materials in order to understand the basic nature of a system, quality control of raw materials and final products. The rheological characterizations are important to study the effect of different parameters such as formulation, shelf life and temperature on the quality of final products. The book covers a broad range of rheology related topics such as microrheology, capillary rheolgical measurements, characterization of dense suspensions and numerical analysis of viscoelastic fluids. 116 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Recrystallization is a phenomenon moderately well documented in the geological and metallurgical literature. This book provides a timely overview of the latest research and methods in a variety of fields where recrystallization is studied and is an important factor. The main advantage of a new look at these fields is the rapid increase in modern techniques, such as TEM, spectrometers and modeling capabilities, all of which are providing us with far better images and analysis than ever previously possible. This book will be invaluable to a wide range of research scientists; metallurgists looking to improve properties of alloys, those interested in how the latest equipment may be used to image grains and to all those who work with frozen aqueous solutions where recrystallization may be a problem. 234 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book provides an insight for students, researchers and practitioners on the area of vehicular communications explaining and presenting solutions for some of the most critical issues in this field and, hopefully, inspiring new research directions. The book is organized in Sections, which respond to different layers and aspects of the vehicular technology: infrastructures, cells deployment and its integration with the V2V part, access procedures, advanced services and applications as localization, spectrum sensing, relay-based cooperative networks. 234 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Cardiovascular disease (CVD) is ranked as the leading cause of death world wide, responsible for 17.1 million deaths globally each year. Such numbers are often difficult to comprehend. A coronary even occurs every 25 seconds and CVD kills one person every 34 seconds. 35 people under 65 years of age die prematurely every day due to CVD. The incidence of CVD has declined in recent years due to a better understanding of the pathology, implementation of lipid lowering therapy, new drug regimens and advances in acute surgical intervention. The disease burden has a great financial impact on global healthcare systems and major economic consequences for world economies. This text reviews the epidemiology, development, risk factors, diagnosis and treatment of ischemic heart disease. 212 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present book is a collection of ten original research articles and reports, associated with selected topics in agricultural chemistry. The discussed issues are organized in four sections: Classification and labeling of active substances in plant protection products, Environmental and stress plant physiology and behavior, Antimicrobial and antioxidant potential of plant extracts, and Pollutants analysis and effects.The information provided in this book should be of interest for academic researchers and for agriculturalists. 224 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Adaptive filtering can be used to characterize unknown systems in time-variant environments. The main objective of this approach is to meet a difficult comprise: maximum convergence speed with maximum accuracy. Each application requires a certain approach which determines the filter structure, the cost function to minimize the estimation error, the adaptive algorithm, and other parameters; and each selection involves certain cost in computational terms, that in any case should consume less time than the time required by the application working in real-time. Theory and application are not, therefore, isolated entities but an imbricated whole that requires a holistic vision. This book collects some theoretical approaches and practical applications in different areas that support expanding of adaptive systems. 164 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Heuristic Search is an important sub-discipline of optimization theory and finds applications in a vast variety of fields, including life science and engineering. Search methods have been useful in solving tough engineering-oriented problems that either could not be solved any other way or solutions take a very long time to be computed.This book explores a variety of applications for search methods and techniques in different fields of electrical engineering. By organizing relevant results and applications, this book will serve as a useful resource for students, researchers and practitioners to further exploit the potential of search methods in solving hard optimization problems that arise in advanced engineering technologies, such as image and video processing issues, detection and resource allocation in telecommunication systems, security and harmonic reduction in power generation systems, as well as redundancy optimization problem and search-fuzzy learning mechanisms in industrial applications. 294 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Medicine is an ever-changing science. Every day we are encountered with the new developments and knowledge in the pathogenesis, mechanism of disease, newer diagnostic modalities, treatment options and new challenges in the management of the various diseases. The same holds true for respiratory diseases with the emergence of new respiratory pathogens having significant impact on the respiratory system.Respiratory Diseases are an important contributor to the morbidity and mortality of mankind since antiquity and its prevalence is on rise in with new disease are being recognized, however little importance has been given to the respiratory disease due to low level of awareness in physicians and general public. This book has been designed to deliver the detailed knowledge about the various respiratory infections including viral, bacterial, and helminthic infections. 262 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Summarizing a decade of scientific advance and therapeutic innovation, Renal Tumor offers all physicians treating kidney cancer, as well as researchers, updated information concerning the epidemiology, biology, and treatment of renal cell carcinoma.Contributors to this book are from all over the world and are experts in their individual fields. They have provided reviews about current knowledge in the management of both localized and metastatic renal cell carcinoma, as well as the latest developments in molecular genetics, imaging, and immune dysfunction associated with the diseases. Further special attention is paid to the biology of selected target molecules and various agents that inhibit these targets, including full chapters devoted to pharmaceutical drugs that selectively inhibit receptor tyrosine kinases, such as sunitinib and axitinib. Readers such as urological physicians, researchers, and kidney cancer patients are potential beneficiaries of this book. 218 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Arthroscopy has now become the most commonly performed musculoskeletal procedure. Arthroscopy has had several beneficial effects especially in terms of reduction of morbidity and reducing and in many cases eliminating the need for hospitalization. It all began with the knee surgeries and even today the most common arthroscopic procedures are performed in knee and yet arthroscopic surgeries performed for other regions right from temperomandibular joint down to the subtalar joint have replicated the success shown in knee surgeries. They are gradually becoming popular and this book intends to describe the tips and tricks employed by the experts in their respective field for benefit of the residents and fellows. This book has brought the experts in the field of the arthroscopy who have written the chapters concerning various regions viz Temporomandibular joint, Shoulder, Wrist, Lumbar Spine, Knee, Ankle, and the Subtalar Joint. The focus has been on delivering key surgical points that will help ensure that learning is seamless. 162 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book includes contributions from researchers around the world on numerical developments and applications to predict fluid flow and heat transfer, with an emphasis on thermal hydraulics computational fluid dynamics. Our ability to simulate larger problems with greater fidelity has vastly expanded over the past decade. The collection of material presented in this book augments the ever-increasing body of knowledge concerning the important topic of thermal hydraulics. Featured topics include coolant channel analysis, thermal hydraulic transport and mixing, as well as hydrodynamics and heat transfer processes. The contents of this book will interest researchers, scientists, engineers and graduate students. 202 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Legumes are important for the diet of a significant part of the world's population; they are a good source of protein, carbohydrates, minerals and vitamins. The'importance of soybean'lies in the overall agriculture and trade and in its contribution to food supply.Soybean contains the highest protein content and has no cholesterol in comparison with conventional legume and animal food sources. Furthermore, soybean is a cheap source of food, and at the same time medicinal due to its genistein, photochemical, isoflavones content. Soybean has been found to be extremely helpful in the fight against heart disease, cancer and diabetes, among others. Soybean protein and calories are presently being used to prevent body wasting often associated with HIV. The importance of soybean nutrition intervention is amplified where medications are unavailable. Its economic potential inherent in a wide range of industrial uses can be harnessed to the benefit of smallholder soybean producers. 290 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is a result of contributions of experts from international scientific community working in different aspects of piezoelectric materials and devices through original and innovative research studies. Through its 7 chapters the reader will have access to works related to the various applications of piezoelectric materials such as piezoelectric stacks in level sensors, pressure sensors, actuators for functionally graded plates, active and passive health monitoring systems, machining processes, nondestructive testing of aeronautical structures and acoustic wave velocity measurements. The text is addressed not only to researchers, but also to professional engineers, students and other experts in a variety of disciplines, both academic and industrial seeking to gain a better understanding of what has been done in the field recently, and what kind of open problems are in this area. 176 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Split thickness skin grafting procedure is a simple but essential and important one to achieve closure of a full thickness or deep partial thickness skin defect. It needs to be performed with care and precision for successful outcome. The present publication is devoted to skin grafts. Three important components of this procedure are preparation of wound bed, fixation of skin grafts to the recipient area to improve possibility of graft take and management of skin graft donor area for both full thickness and split thickness grafts. The chapters have been distributed in these three sections. 114 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book provides a collection of in-depth reviews broadly related to the mechanisms of viral replication as applied to various viruses of critical relevance for human or animal disease. Specifically, this book contains six different chapters: 1) Influenza A Virus Multiplication and the Cellular SUMOylation System; 2) West Nile Virus: Basic Principles, Replication Mechanism, Immune Response and Important Genetic Determinants of Virulence; 3) Hepatitis B Virus Genetic Diversity: Disease Pathogenesis; 4) An Overview of the Immune Evasion Strategies Adopted by Different Viruses With Special Reference to Classical Swine Fever Virus; 5) Viral Replication Strategies: Manipulation of ER Stress Response Pathways and Promotion of IRES-Dependent Translation; 6) Antiviral Replication Agents. This book is aimed at students, scholars, professors, and investigators who are peripherally related to, or somehow intrigued by, the different areas of virology covered in this book, as well as at those individuals with greater expertise and knowledge in the topics herein presented who may want up-to-date in depth reviews related to such topics. 156 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Do you regard hypothyroidism as a more complex issue than just a simple prescription of levothyroxine tablet Are you interested in getting more information on the management of thyroid dysfunction in pregnancy, at birth, in childhood or in subclinical states Have you been thinking of performing thyroid ultrasound in hypothyroid patients by yourself, or perhaps you already do it and are not so sure about it Than this book should give you some answers and help you form your own opinion. You will find there several excellent review articles from authors from all over the world. 232 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Colorectal cancer (CRC) represents a major public health problem worldwide. Fortunately most CRCs originate from a precursor lesion, the adenoma, which is accessible and removable. This is the rationale for CRC screening programs, which are aimed to diagnose CRC at an early stage or even better to detect and resect the advanced adenoma before CRC has developed. In this background colonoscopy emerges as the main tool to achieve these goals with recent evidence supporting its role in CRC prevention. This book deals with several topics to be faced when implementing a CRC screening program. The interested reader will learn about the rationale and challenges of implementing such a program, the management of the detected lesions, the prevention of complications of colonoscopy, and finally the use of other screening modalities that are emerging as valuable alternatives. The relevance of the topics covered in it and the updated evidence included by the authors turn this book into a very useful tool to introduce the reader in this amazing and evolving field. 288 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Electrochemistry has been undergoing significant transformations in the last few decades. It is now the province of academics interested only in measuring thermodynamic properties of solutions and of industrialists using electrolysis or manufacturing batteries, with a huge gap between them. It has become clear that these, apparently distinct subjects, alongside others, have a common ground and that they have grown towards each other, particularly as a result of research into the rates of electrochemical processes. Such evolution is due to a number of factors, and offers the possibility of carrying out reproducible, dynamic experiments under an ever-increasing variety of conditions with reliable and sensitive instrumentation. This has enabled many studies of a fundamental and applied nature, to be carried out. 210 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The level of surface water quality protection is variable around the world in large part due to the relative effectiveness of environmental regulation and the degree to which science influences the regulatory process. In the United States, at the federal level, the Total Maximum Daily Load (TMDL) has been an effective policy and water quality management tool for dealing with both point source and non-point source pollution. The TMDL provides a rational framework for estimating the assimilative capacity of the receiving water body for certain contaminants and applying factors of safety and incorporating acceptable levels of water quality criteria violation - provided the local stakeholders have a say in the decision making process. This collection of articles from around the world are good examples of the application of sound scientific principles to solve pressing water quality problems. 132 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The present science book 'Application of Solar Energy' is edited by Professor R. D. Rugescu in the series on Solar Power and consists of 7 chapters that begin with the proof of the high thermal efficiency of the gravitational draught through concentrated solar heating. It continues with novel technologies of producing organic fuels through solar heating, new types of photovoltaic cells, long term use of thermal solar power plants, the efficiency of thermal storage and applications in Niger of the Solar power. The reader will be pleasantly impressed by the accompanying drawings and pictures that ease the text assimilation and makes it an attractive practice. 204 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book collects the state of the art of the antioxidants from the clinical and experimental approaches in order to bring a better understanding of the mechanisms and useful therapies for these diseases. We hope that it can indicate new 'current trends' for identifying new aspects regarding this scientific problem involving not only anatomical and functional, but also clinical questions. 262 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Vasculitis, an inflammation of blood vessels, can be idiopathic or secondary to other conditions. Infections may also mimic idiopathic vasculitis, and the differential diagnosis is of paramount importance for the practicing physician. Vasculitides are not rare diseases. In fact, some vasculitides, such as giant cell arteritis, cutaneous vasculitis, and ANCA-associated vasculitis are relatively common in everyday practice. Vasculitis may rapidly lead to organ failure, and put patient's life in danger. Therefore, physicians of different specialties should diagnose vasculitis early, because early institution of treatment is crucial for the favorable outcome. In recent years progress has been made in the pathophysiology and treatment of vasculitis. This book reflects all new advances in pathogenetic mechanisms, diagnosis, and treatment of different types of vasculitis. The international panel of authors helps in achieving a balanced view on different aspects of vasculitis. 284 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Discrete Wavelet Transform is a wavelet (DWT) transform that is widely used in numerical and functional analysis. Its key advantage over more traditional transforms, such as the Fourier transform, lies in its ability to offer temporal resolution, i.e. it captures both frequency and location (or time) information. This book presents a succinct compendium of some of the more recent variants of DWTs and their use to come up with solutions to an array of problems transcending the traditional application areas of image/video processing and security to the relatively newer areas of medicine, artificial intelligence, power systems and telecommunications. The first of the two sections of this book contains three chapters devoted to traditional applications of DWTs in digital image compression, copyright protection and video resolution enhancement. The second section, comprising of five chapters, is devoted to variants of the DWT and their applications in humanoid-robot vision systems; modeling and simulation recognition of physiological and behavioral traits through human gait and facial images; assessment of agitation and sedation in intensive care patients; maximization of power control systems; and, finally, in demodulation of FM data in free-space optical control systems. 234 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book presents current topics in genetics in the dermatologic field. Various skin disorders are inherited as mendelian inheritance. Genetic skin disorders are caused by mutations in the genes encoding proteins expressing in skin, skin appendages, melanocytes and immune-associated cells. Identification of genes and elucidation of function of the encoded proteins may provide novel strategies to overcome the disorders. We hope that this book offers sufficient current information in each disorder to scientists, physicians and dermatologists, and that novel therapies will be provided to affected individuals via these chapters. 170 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this book dealing with the lung health, the authors focus on various fields, spreading from pulmonary oncogenesis, to inflammatory and parasitic lung diseases. The first section deals with the fundamental research on lung cancer that is mandatory for the development of novel and early biomarkers for diagnosis of the lung cancer. This development could be enhanced using experimental models despite the species barrier. Mouse models can help us understand the sequence of events involved in human lung neoplasia and their underlying molecular mechanisms. The results of the research could be used to identify novel targets for the development of new biological therapies. In the second section of this book, the role of inflammation in various respiratory diseases is outlined. The authors recall cellular mechanisms including neutrophils to improve the understanding of the phenomenon and help develop targeted therapies. The third section on parasitic tropical lung disease highlights the growing importance of neglected tropical diseases due to increased traffic across the continents and migration of the population. Physicians need to be aware of the symptoms and imaging findings of these diseases mainly in travelers and immigrants from tropical endemic areas. 168 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The book includes collection of theoretical papers dealing with the species problem, which is among most fundamental issues in biology. The principal topics are: consideration of the species problem from the standpoint of modern non-classical science paradigm, with emphasis on its conceptual status presuming its analysis within certain conceptual framework; evolutionary emergence of the species as discrete unit of certain level of generality; epistemological consideration of the species as a particular explanatory hypotheses, with respective revised concepts of biodiversity and conservation; considerations of evolutionary and phylogenomic species concepts as candidates for the universal one; re-appraisal of the biological species concept based on the 'friend-foe' recognition system; species delimitation approach using multi-locus coalescent-based method; a re-consideration of the Darwin's species concept. 292 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is a must-have book for those interested in reproduction. It provides a full account of our current knowledge of the hormones intimately associated with testicular and ovarian function. Each chapter is carefully organized to cover basic concepts and recent advances in gonadotropin synthesis and secretion. The information is presented in a sequence that provides researchers, teachers, and students with a logical integration of the reproductive axis. Practical applications associated with reproductive management of domestic species are also provided. Taken together, this book is a comprehensive combination of fundamental endocrine concepts and original findings in the area of gonadotropin function. 192 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Senescence is a biological process that causes a progressive deterioration of structure and function of all organs chronologically. Recent studies have revealed the detailed molecular mechanisms of senescence using cell culture system and experimental organisms. It is thought that senescence is a potential cause for the development of various age-related disorders such as cancer, cardiovascular and neurodegenerative disorders. This book discusses in detail senescence and its related diseases by distinguished researchers and practicing clinicians. The cumulative knowledge from the studies could lead to developing new approaches for anti-senescence interventions. 160 pp. Englisch.

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Under the title 'Insights from Veterinary Medicine', this book presents original research results and reviews flashing several distinctive aspects of the Veterinary Medicine Sciences, in which the knowledge has continuously increased over the past decades. Veterinary and Human Medicine have been developed in close association, in part as a reflection of the intertwined relationship found between animals and humans since the establishment of first civilizations. Humans and animals share common mechanisms of disease, thus serving as spontaneous models for the study of particular disorders, such as tumors and cardiac diseases. Furthermore, concerns on the deleterious side-effects of contaminants, in particular over the endocrine axis regulating different body functions and fertility, are on the table, as animals may serve as sentinels for environmental quality. In addition, the quality of the animal life with regards to both health and welfare also contribute to the quality of human life, and food-animal health and safety are safeguards against the disruption of the food chain. The Veterinary Medicine field has broadened its scope of action, and nowadays it encompasses much more than the veterinary medical practice. Similarly, a wide field of knowledge was covered in this book. Even so, it was our goal to provide you with current advanced resources in different veterinary science disciplines. 292 pp. Englisch.