الصفحة 5
الصفحة 5
Gastroesophagal reflux disease (GERD)
Gastroesophageal reflux disease (GERD) is a common disease with a high prevalence worldwide and a great socioeconomic burden. GERD is a multifactorial disease in which anatomical and functional factors both play a pathogenetic role. The disease can manifest in various symptoms which can be grouped into typical, atypical and extra-esophageal symptoms. The pathophysiology of GERD is complex and not completely understood. An abnormal LES pressure and increased reflux during transient LES relaxations are believed to be key etiologic factors. Prolonged exposure of the esophagus to acid is another. Heartburn and acid regurgitation are the most common symptoms of GERD, although pathologic reflux can result in a wide variety of clinical presentations.
Gallstones
Gallstones are hardened deposits of digestive fluid that can form in the gallbladder. the gallbladder is a small, pear-shaped organ on the right side of the abdomen, just beneath the liver. The gallbladder holds a digestive fluid called bile that's released into the small intestine. Gallstones range in size from as small as a grain of sand to as large as a golf ball. Some people develop just one gallstone, while others develop many gallstones at the same time.
Future space-transport-system components under high thermal and mechanical loads : results from the DFG Collaborative Research Center TRR40
This book presents the findings of Collaborative Research Center Transregio 40 (TRR40), initiated in July 2008 and funded by the German Research Foundation (DFG). Gathering innovative design concepts for thrust chambers and nozzles, as well as cutting-edge methods of aft-body flow control and propulsion-component cooling, it brings together fundamental research undertaken at universities, testing carried out at the German Aerospace Center (DLR) and industrial developments from the ArianeGroup
Fundamentals of Protein Structure and Function
This book serves as an introduction to the fundamentals of protein structure and function. Starting with their make up from simple building blocks called amino acids, the 3-dimensional structure of proteins is explained. This is followed by an introduction into enzymology and modern concepts of enzyme kinetics, taking into account the physiological and medical significance of this often neglected topic.
Fundamentals of building construction : Materials and methods
Reference for thousands of professionals and students of architecture, engineering, and construction technology for over thirty years. The materials and methods described in this new seventh edition have been thoroughly updated to reflect the latest advancements in the industry. Carefully selected and logically arranged topics-ranging from basic building methods to the principles of structure and enclosure-help readers gain a working knowledge of the field in an enjoyable, easy-to-understand manner. All major construction systems, including light wood frame, mass timber, masonry, steel frame, light gauge steel, and reinforced concrete construction, are addressed. Now in its seventh edition, Fundamentals of building construction contains substantial revisions and updates.
Fundamental approaches to software engineering ; 24th International Conference, FASE 2021, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2021, Luxembourg City, Luxembourg, March 27 – April 1, 2021, Proceedings
This book constitutes the proceedings of the 24th International Conference on Fundamental Approaches to Software Engineering, FASE 2021, which took place during March 27–April 1, 2021, and was held as part of the Joint Conferences on Theory and Practice of Software, ETAPS 2021.
From Gestalt Theory to Image Analysis : A Probabilistic Approach
This book introduces the reader to a recent theory in Computer Vision yielding elementary techniques to analyse digital images. These techniques are inspired from and are a mathematical formalization of the Gestalt theory. Gestalt theory, which had never been formalized is a rigorous realm of vision psychology developped between 1923 and 1975. From the mathematical viewpoint the closest field to it is stochastic geometry, involving basic probability and statistics, in the context of image analysis.
Foundations of software science and computation structures ; 24th International conference, FOSSACS 2021, Held as Part of the European joint conferences on theory and practice of software, ETAPS 2021, Luxembourg City, Luxembourg, March 27 – April 1, 2021, proceedings
This book constitutes the proceedings of the 24th International Conference on Foundations of Software Science and Computational Structures, FOSSACS 2021, which was held during March 27 until April 1, 2021, as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2021. The conference was planned to take place in Luxembourg and changed to an online format due to the COVID-19 pandemic.
Foundations of Qt Development
Foundations of Qt Development is based on Qt 4.2, and is aimed at C++ programmers who want to become proficient using this excellent toolkit to create graphical applications that can be ported to all major platforms. The book is focused on teaching you to write your own code in addition to using existing code. Common areas of confusion are identified, addressed, and answered.
Foundations of GTK+ Development
GTK+ is one of the most influential graphical toolkits for the Linux operating system. It is the technology upon which the GNOME and XFCE desktop environments are based, and its crucial to have clear understanding of its complexities to build even a simple Linux desktop application. Foundations of GTK+ Development guides you through these complexities, laying the foundation that will allow you to cross from novice to professional.
Forefoot Reconstruction
For a long time, forefoot surgery had many disadvantages including a painful postoperative period and recurrence of deformities. New techniques – notably Scarf, the first metatarsal osteotomy and the Weil osteotomy of the lesser metatarsal – provide a significant improvement in the treatment of static forefoot disorders. The great toe osteotomy has also been greatly improved. Since 1991, the author has introduced these techniques in many countries, while developing and studying the corresponding implants and the postoperative period. He has also developed surgical management techniques that bridge these different osteotomies. More than 1000 surgeons around the world are using these techniques, which are now widely taught. In this second edition of the book the general presentation is clearer and more pleasant and many pictures have been replaced. Several topics are emphasized, notably the great toe proximal phalanx osteotomy, the joint preservative surgery in severe forefoot disorders, including revision after failed bunionectomy and rheumatoid forefoot following the "ms” point for an accurate and effective metatarsal shortening. Lastly, new procedures are exposed, particularly in Claw toe and hammer with the PIP plantar release and the surgery of the middle phalanx and also the Weil osteotomy of the first metatarsal in hallux limitus.
Flux-corrected transport : Principles, algorithms, and applications
Addressing students and researchers as well as CFD practitioners, this book describes the state of the art in the development of high-resolution schemes based on the Flux-Corrected Transport (FCT) paradigm. Intended for readers who have a solid background in Computational Fluid Dynamics, the book begins with historical notes by J.P. Boris and D.L. Book. Review articles that follow describe recent advances in the design of FCT algorithms as well as various algorithmic aspects. The topics addressed in the book and its main highlights include: the derivation and analysis of classical FCT schemes with special emphasis on the underlying physical and mathematical constraints; flux limiting for hyperbolic systems; generalization of FCT to implicit time-stepping and finite element discretizations on unstructured meshes and its role as a subgrid scale model for Monotonically Integrated Large Eddy Simulation (MILES) of turbulent flows. The proposed enhancements of the FCT methodology also comprise the prelimiting and 'failsafe' adjustment of antidiffusive fluxes, the use of characteristic variables, and iterative flux correction. The cause and cure of detrimental clipping/terracing effects are discussed. Many numerical examples are presented for academic test problems and large-scale applications alike.
Flux Pinning in Superconductors
Covers the flux pinning mechanisms and properties and the electromagnetic phenomena caused by the flux pinning common for metallic, high-Tc and MgB2 superconductors. The condensation energy interaction known for normal precipitates or grain boundaries and the kinetic energy interaction proposed for artificial Nb pins in Nb-Ti, etc., are introduced for the pinning mechanism.
Flowering Plants. Eudicots : Berberidopsidales, Buxales, Crossosomatales, Fabales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllales, Clusiaceae Alliance, Passifloraceae Alliance, Dilleniaceae, Huaceae, Picramniaceae, Sabiaceae
In this volume, the ninth of the series, treatments are offered for 52 families containing 432 genera belonging to 13 eudicot orders, many of which have recently been newly designed; four families remain unassigned to order. Emphasis is on the early-diverging eudicots and basal core eudicots the phylogenetic relationships and diversification of which have recently been in focus and are critically discussed. Systematically relevant information includes descriptions of families and genera, keys to the genera, and references to recent revisions. Introductions to the families provide convenient, in-depth overviews of key aspects of systematics. The wealth and precision of information contained in this volume will make it an important source of reference for both the scholar and the practitioner in the fields of pure and applied plant sciences.
Fish and Diadromy in Europe (ecology, management, conservation)
This book contains selected papers from an international symposium organised by the Diadfish network held in Bordeaux (France) in 2005. Readers will find up-to-date information on the ecology, ecotoxicology and physiology of several diadromous species (Atlantic salmon, shads, lampreys, eels) and this whole group in Europe. Main impacts are also documented and analysed in case studies, and solutions or remediation actions are presented.
Field Measurements for Forest Carbon Monitoring : A Landscape-Scale Approach
This volume is a comprehensive guide to the methods and techniques employed in forest carbon inventory and monitoring. Since forest carbon research is interdisciplinary, it is unlikely that any one investigator will possess expertise in all of the types of measurements needed to conduct forest carbon research at scales larger than a forest stand. Techniques used to characterize standing stocks of carbon in a forest, measure key carbon fluxes, and collect related data (such as forest canopy nitrogen concentrations and meteorological measurements) that are required to drive process models, develop predictive relationships, and link to remote sensing data are described in detail. In addition to the measurement methods, the chapters include background information, necessary calculations, and equipment requirements.
Fast Software Encryption ; 14th International Workshop, FSE 2007, Luxembourg, Luxembourg, March 26-28, 2007, Revised Selected Papers
It addresses all current aspects of fast and secure primitives for symmetric cryptology, covering hash function cryptanalysis and design, stream ciphers cryptanalysis, theory, block cipher cryptanalysis, block cipher design, theory of stream ciphers, side channel attacks, and macs and small block ciphers.
Explosively Driven Pulsed Power : Helical Magnetic Flux Compression Generators
While the basic operating principles of Helical Magnetic Flux Compression Generators are easy to understand, the details of their construction and performance limits have been described only in government reports, many of them classified. Conferences in the field of flux compression are also dominated by contributions from government (US and foreign) laboratories. And the government-sponsored research has usually been concerned with very large generators with explosive charges that require elaborate facilities and safety arrangements. This book emphasizes research into small generators (less than 500 grams of high explosives) and explains in detail the physical fundamentals, construction details, and parameter-variation effects related to them.
Expert Oracle Database 10g Administration
This book covers the new 10g management and performance tools and provides essential primers on Unix, Linux and Windows NT administration and on core SQL and PL/SQL programming techniques. And it provides everything the new and aspring Oracle database administrator needs to build and administer complex Oracle 10g databases.
Existence: Semantics and Syntax
This collection is an important contribution to the semantic and syntactic analysis of the expression of existence. The volume focuses on the three main linguistic constructions expressing existence: copular clauses, existential sentences, and (in)definiteness. The papers analyze the interaction between the basic notion of existence and pervasive phenomena of natural language, such as quantification and presupposition. The contributions represent state of the art research on theoretical and comparative issues related to the expression of existence, and make extensive reference to the semantic and syntactic facts of English and of various other languages. The richness of new data and the juxtaposition of different theoretical stances bring a number of new questions into focus.
