الصفحة 20
الصفحة 20
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Image-Guided IMRT

Intensity-modulated radiation therapy (IMRT), one of the most important developments in radiation oncology in the past 25 years, involves technology to deliver radiation to tumors in the right location, quantity and time. Unavoidable irradiation of surrounding normal tissues is distributed so as to preserve their function. The achievements and future directions in the field are grouped in the three sections of the book, each suitable for supporting a teaching course.

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Image and video encryption : From digital rights management to secured personal communication

Image and Video Encryption provides a unified overview of techniques for encryption of images and video data. This ranges from commercial applications like DVD or DVB to more research oriented topics and recently published material. This volume introduces different techniques from unified viewpoint, then evaluates these techniques with respect to their respective properties (e.g., security, speed.....). Encryption of visual data is an important topic in the area of mutimedia security, applications range from digital rights management (DVD, DVB) ) to secure personal communications. Within this topic area, we face several aims which contradict each other. What we thrive on is good compression, fast compression, high security, fast encryption, bitstream compliance, little power consumption and little memory requirements. The authors experimentally compare different approaches proposed in the literature and include an extensive bibliography of corresponding published material. Image and Video Encryption is designed for a professional audience composed of researchers and practitioners in industry. The book is also suitable for graduate-level students in computer science and electrical engineering.

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Idempotent matrices over complex group algebras

The study of idempotent elements in the group algebras originates from geometric and analytic considerations. … This book provides an introduction to the study of these problems.It collects and presents in a systematic way basic techniques and important results that have been obtained during the past few decades.The book is suitable for independent study. Moreover, all chapters and appendices finish with a sufficient number of exercises that also increase the quality of the book.

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Ideals and Reality : Projective Modules and Number of Generators of Ideals

The book gives a comprehensive introduction to basic commutative algebra, together with the related methods from homological algebra, which will enable students who know only the fundamentals of algebra to enjoy the power of using these tools. At the same time, it also serves as a valuable reference for the research specialist and as potential course material, because the authors present, for the first time in book form, an approach here that is an intermix of classical algebraic K-theory and complete intersection techniques, making connections with the famous results of Forster-Swan and Eisenbud-Evans. A study of projective modules and their connections with topological vector bundles in a form due to Vaserstein is included. Important subsidiary results appear in the copious exercises.

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Icons of Space : Advances in Hierotopy

Brings together important scholars of Byzantine religion, art, and architecture, to honour the work of renowned art historian Alexei Lidov. As well as his numerous publications, Lidov is well known for developing the concept of hierotopy, an innovative approach for studying the creation of sacred spaces. Hierotopy and the related concepts of ‘spatial icons’ and ‘image-paradigms’ emphasize fundamental questions about icons, including what defines them as structures, spaces, and experiences.

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Iberian World Empires and the Globalization of Europe 1415–1668

This book analyses Iberian expansion by using knowledge accumulated in recent years to test some of the most important theories regarding Europe’s economic development. Adopting a comparative perspective, it considers the impact of early globalization on Iberian and Western European institutions, social development and political economies. This book finds its impact decisive for institutional development, political economies, and processes of state-building in Iberia and Europe. The book engages current historiographies and revindicates the need to take the concept of composite monarchies as a point of departure in order to understand the period’s economic and social developments, analysing the institutions and societies resulting from contact with Iberian peoples in America and Asia. The outcome is a study that nuances and contests an excessively-negative yet prevalent image of the Iberian societies, explores the difficult relationship between empires and globalization and opens paths for comparisons to other imperial formations.

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Hypoplastic Left Heart Syndrome

Hypoplastic Left Heart Syndrome draws together the experiences of the leading experts in the field. Through their work in all aspects of congenital cardiac care, they have become acknowledged as the world leaders in the diagnostic, medical and social needs of children born with hypoplasia of the left heart. More importantly, for the first time the book recognizes the crucial contributions made by the families of these children. Diagnostic possibilities, options for medical and surgical treatment and a history of their evolution are looked into and the book also gives an insight into the longer-term effects that treatment has on the child and its family. As well as including contributions from medical clinicians, nurses, and psychologists, for the first time a forum is provided for the parents, who have complemented the contributions from the medical and nursing experts to provide a holistic view of the lives and experiences of the children born with this condition. No other publication, currently available, offers such a comprehensive overview of the care required by a child with hypoplasia of the left heart. This book provides the ultimate reference for anyone treating children with this heart condition, particularly paediatric cardiac clinical and nursing teams, radiologists and radiographers, obstetric medical and nursing teams, psychologists, pathologists, geneticists and workers in social care.

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Hypertension in the Elderly

Topics range from basic concepts, epidemiology and trials, and evaluation and management, to pharmacological treatment, special populations, and adherence, all presented with an emphasis on the optimal management of patients. The authors examine in detail the mechanisms of hypertension in the elderly, particularly age-related changes in vascular stiffness, and methodically review the lifestyle and outcomes trials that were conducted in older persons. The problems of clinical evaluation, secondary hypertension, and target organ damage are also fully addressed, and a practical approach is provided for correctly determining blood pressure, one of the most important tasks in evaluating an older patient. Extensive discussions of pharmacological therapy detail the role of individual drug classes, including diuretics and b-blockers, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, calcium antagonists, a-1 blockers, and combination drug therapies. Additional chapters focus on special populations, such as African Americans, patients with diabetes, and patients with arthritis, as well as on the clinician's role in improving therapeutic adherence in older patients. Offers family practitioners and general internists an up-to-date, user-friendly reference on the diagnosis, treatment, and complications of hypertension in the elderly.

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Hyperparameter tuning for machine and deep learning with R : A practical guide

Equips readers with the ability to achieve better results with significantly less time, costs, effort and resources using the methods described here. The case studies presented in this book can be run on a regular desktop or notebook computer. The content focuses on the hyperparameter tuning of ML and DL algorithms, and is divided into two main parts: theory (Part I) and application (Part II). Essential topics covered include: a survey of important model parameters; four parameter tuning studies and one extensive global parameter tuning study; statistical analysis of the performance of ML and DL methods based on severity; and a new, consensus-ranking-based way to aggregate and analyze results from multiple algorithms.

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Hyperbolic Problems : Theory, Numerics, Applications ; Proceedings of the Eleventh International Conference on Hyperbolic Problems held in Ecole Normale Supérieure, Lyon, July 17-21, 2006

This volume contains papers that were presented at HYP2006, the eleventh international Conference on Hyperbolic Problems: Theory, Numerics and Applications held at the Ecole Normale Supérieure de Lyon, France, July 17-21, 2006. This biennial series of conferences has become one of the most important international events in Applied Mathematics. As computers became more and more powerful, the interplay between theory, modelling, and numerical algorithms gained considerable impact, and the scope of HYP conferences expanded accordingly. The field is currently in interaction with a variety of scientific domains, including fluid dynamics, physics, electromagnetism, chemistry, biology, road and network traffic, and engineering. Many of these papers present new effective numerical methods and their application in various contexts.

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Hydrology and Water Resources of India

Divided into four sections the book provides a comprehensive overview of water resources of India. Beginning with a general description of the country, major hydrologic features, such as climate (precipitation, temperature, radiation, etc.), streamflow, groundwater, soil, etc. are discussed. A detailed treatment of all major river basins is provided, which includes description of catchments, tributaries, surface water and ground water, and important water resources projects. This is followed by a discussion on major uses of water in India, major projects, water related problems including environment and water quality, provisions of the constitution of India, interlinking of India rivers, and institutions dealing with water resources. Finally, the last chapter discusses some views on water management policy for India.

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Hydrogenosomes and Mitosomes : Mitochondria of Anaerobic Eukaryotes

"Hydrogenosomes and Mitosomes: Mitochondria of Anaerobic Eukaryotes" provides a summary of the current knowledge of these organelles, which occur in unicellular, often parasitic organisms, including human pathogens. The distribution of these organelles is broad, but they were detected primarily in an anoxic habitat or nutrient rich intracellular niche that permits life without the efficient energy generating system of typical mitochondria. Their common characteristic is that they lack the aerobic energy conservation system of typical mitochondria and that they are usually the site of the synthesis of iron-sulfur clusters, regarded as the only indispensable function of eukaryotic mitochondria.These mitochondria-related organelles exhibit a variety of structures and functions. This work describes properties such as protein import, structure, metabolism, adaptation, proteome and their role in drug activation and resistance. Further topics include the evolution and biogenesis of these organelles.

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Hydrogen bonding : New insights

Hydrogen Bonding – New Insights is an extensive text which takes numerous examples from experimental studies and uses these to illustrate theoretical investigations to allow a greater understanding of hydrogen bonding phenomenon. The most important topics in recent studies are considered including: *Intra-molecular H-bonds *Differences between H-bond and van der Waals interactions from one side and covalent bonds from the other *Bader theory to analyze H-bonding *Influence of weak H-bonds upon structure and function of biological molecules *H-bonds in crystal structures

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Hydrogen bonded polymers

Control of polymeric structure is among the most important endeavours of modern macromolecular science. In particular, tailoring the positioning and strength of intermolecular forces within macromolecules by synthetic me- odsandthusgaining structuralcontrolover the'nalpolymeric materials has become feasible, resulting in the ?eld of supramolecular polymer science. - sides other intermolecular forces, hydrogen bonds are unique intermolecular forces enabling the tuning of material properties via self-assembly processes, The important contribution of hydrogen bondstotheareaofsupramole- lar polymer chemistry is de'nitely outstanding, most of all since the potency of hydrogen-bonding systems has been found to be unique in relation to other supramolecular interactions.

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Hydrodynamic Lubrication

The first four chapters are preparations for the following five chapters, where several most important subjects in hydrodynamic lubrication are discussed in detail, based on the author’s own researches. Examples are oil whip (stability of rotating shafts), foil bearings in connection with magnetic tape storages, squeeze film between rigid surfaces and visco-elastic surfaces, theoretical and experimental analyses of temperature rise in bearings, those of turbulent lubricating film using the k-epsilon model.

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Hybrid metaheuristics ; Vol. 4030 ; 3rd International Workshop, HM 2006, Gran Canaria, Spain, October 13-14, 2006, Proceedings

The selection of papers for HM 2006 consolidated some of the mainstream issues that have emerged from the past editions. Firstly, there are prominent examples of e?ective hybrid techniques whose design and implementation were motivated by challenging real-world applications. We believe this is particularly important for two reasons: on the one hand, researchers are conscious that the primary goal of developing algorithms is to solve relevant real-life problems; on the other hand, the path towarde?cient solving methods for practical problems is a source of new outstanding ideas and theories. A second important issue is that the research community on metaheur- tics has become increasingly interested in and open to techniques and methods known from arti?cial intelligence (AI) and operations research (OR). So far, the most representative examples of such integration have been the use of AI/OR techniques as subordinates of metaheuristic methods. As a historical and - ymological note, this is in perfect accordance with the original meaning of a metaheuristic as a “general strategy controlling a subordinate heuristic. ” The awareness of the need for a sound experimental methodology is a third keypoint.

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Hybrid Evolutionary Algorithms

Hybridization of evolutionary algorithms is getting popular due to their capabilities in handling several real world problems involving complexity, noisy environment, imprecision, uncertainty and vagueness. This edited volume is targeted to present the latest state-of-the-art methodologies in ’Hybrid Evolutionary Algorithms’. This book deals with the theoretical and methodological aspects, as well as various applications to many real world problems from science, technology, business or commerce. This volume comprises of 14 chapters including an introductory chapter giving the fundamental definitions and some important research challenges. Chapters were selected on the basis of fundamental ideas/concepts rather than the thoroughness of techniques deployed.

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Human-computer interaction – INTERACT 2005 ; IFIP TC 13 International Conference, Rome, Italy, September 12-16, 2005, Proceedings

We will be, sooner or later, not only handling personal computers but also mul- purpose cellular phones, complex personal digital assistants, devices that will be context-aware, and even wearable computers stitched to our clothes…we would like these personal systems to become transparent to the tasks they will be performing. In fact the best interface is an invisible one, one giving the user natural and fast access to the application he (or she) intends to be executed. The working group that organized this conference (the last of a long row!) tried to combine a powerful scientific program (with drastic refereeing) with an entertaining cultural program, so as to make your stay in Rome the most pleasant one all round: I do hope that this expectation becomes true. July 2005 Stefano Levialdi, IEEE Life Fellow INTERACT 2005 General Chairman [1] Peter J. Denning, ACM Communications, April 2005, vol. 48, N° 4, pp. 27-31. Editors’ Preface INTERACT is one of the most important conferences in the area of Human-Computer Interaction at the world-wide level. We believe that this edition, which for the first time takes place in a Southern European country, will strengthen this role, and that Rome, with its history and beautiful setting provides a very congenial atmosphere for this conference. The theme of INTERACT 2005 is Communicating Naturally with Computers.

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Human vision and the night sky : How to improve your observing skills

This book is not for beginners. Nor is it for experts – instead it addresses the needs of practical amateur astronomers who want to make the jump to the new challenges of serious visual observing. Second Steps in Observational Astronomy begins by teaching you, as an amateur astronomer, to use the most important tool you have: your eyes. Visual observing is very definitely a skill that can be learned. Of course it is important to have your other optical equipment – telescope and accessories – set up and operating as perfectly as possible. This book describes how. After these vital preliminaries, subsequent chapters include a series of observing challenges that will entertain you and push your observing skills to continually higher levels of excellence for years to come. Take a tour of the solar-system as you never viewed it before, then beyond into the realm of deep space – using just your own eyes to reveal more detail than you ever thought possible.

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Human microbiome : Clinical implications and therapeutic interventions

The human microbiome refers to the complete microorganisms inhabiting the human body sites including skin, ear, nose, oral cavity, the genital, gastrointestinal and respiratory tracts, and body fluids such as breast milk, saliva, and urine. It is a significant and essential organ recognized for the body and has an established involvement in the host wellbeing, in terms of nutritional requirements and immunomodulation. Talks about how alteration and imbalance in the same can have clinical implications associated with a multitude of gastrointestinal, lifestyle-associated, and neurodegenerative disorders. How the proliferation of specific groups of bacteria and their metabolic activities, as a result of intestinal dysbiosis leads to the 'leaky gut' condition thereby influences brain activity via the bidirectional gut-brain axis. It also coves the importance of microbial seeding and how it can be influenced by the mode of delivery, nutrition, and medication. This book also provides various therapeutic interventions such as the establishment of stool banks and Faecal microbiota transplantation (FMT) that have recently proved promising in the treatment of ASD, Inflammatory Bowel Disease, and Ulcerative Colitis. This book provides a deeper understanding of the development of the human gut microbiome and the factors driving its dysbiosis. This book is a valuable read for health professionals, medical students, nutritionists, and scientific research communities who are eager to update themselves with recent trends in microbiome research. It will also aid gastroenterologists and nutritionists to make well-informed choices regarding therapeutic regimes.

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