الصفحة 1
الصفحة 1
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Mezzi di contrasto in ecografia : Applicazioni addominali = Contrast media in ultrasound : Abdominal applications

Lopera presenta unanalisi completa delle applicazioni dei mezzi di contrasto ecografici a livello addominale. La parte introduttiva di natura tecnica presenta la classificazione generale e le proprietà fisiche dei mezzi di contrasto ecografici, nonché una dettagliata classificazione delle tecniche ecografiche contrasto-specifiche; segue una parte speciale che descrive le applicazioni delle microbolle a livello del fegato, della milza e del rene. Vengono quindi presentate le applicazioni speciali e innovative dei mezzi di contrasto ecografici nellambito dei traumi delladdome, della patologia del pancreas, della parete intestinale e dei vasi addominali, e della valutazione del reflusso vescico-ureterale. Infine, viene proposta unanalisi economica relativa allapplicazione dei mezzi di contrasto ecografici nella caratterizzazione delle lesioni focali epatiche. Il libro è principalmente rivolto ai medici impegnati nellattività ecografica quotidiana, particolarmente in ambito internistico, che desiderano ampliare le proprie competenze nel settore dellecografia con mezzo di contrasto

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Exploring C for Microcontrollers : A Hands on Approach

The market is flooded with numbers of good books on Embedded Systems designed especially with the most popular MCS51 family. These books are traditional in nature i.e. they start with the routine architectural features of 8051, description of registers, ports, interrupts etc. Most of these things are already covered in the device data sheet and application notes. In this book all such routine things are skipped. The focus is on programming microcontrollers, to be specific MCS-51 family in ‘C’ using Keil IDE. Exploring C for Microcontrollers presents seventeen live case studies apart from the many basic programs organized around every on-chip resource like port, time/counter, interrupt , serial I/O etc. Rather than introducing the underpinning theory or reproducing lengthy data sheets, our approach is "learning-through-doing" and one that appeals to busy electronics designers. The ‘C’ codes given are well supported by easy to understand comments wherever required.

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Elementi di fluidodinamica : Un'introduzione per l'Ingegneria = Elements of fluid dynamics : An introduction for engineering

The text offers a first approach to fluid dynamics, at an appropriate formal level. It emphasizes mathematical and numerical approaches to problems, encouraging the reader to acquire sufficient cultural independence for further study.

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Ecosystem Organization of a Complex Landscape : Long-Term Research in the Bornhöved Lake District, Germany

Presents the major findings of a 12-year ecological study of the Bornhöved Lake District, situated some 30 km south of Kiel. Historically speaking, the present research scheme, like comparable long-term ecosystem studies at Göttingen, Bayreuth, München, and Berchtesgaden, has been conceived as the core of a comprehensive ecological surveillance system for Germany (Ellenberg et al. 1978). Comprising three interrelated components, namely an ecological monitoring network, comparative ecosystem research, and an environmental specimen bank, this system is intended to promote both ecological science and planning and policy. In this connection the geo- and bioscientifically based ecosystem research aims at understanding the structure and functions of systems, the natural equilibrium and stress tolerance of singular components and the entire system against changes and disturbances from within and from outside, and the relationships between diversity, productivity, and stability. Thus, ecosystem research forms the indispensable basis for the rational analysis of the comprehensive data sets made available by ecological monitoring networks and for the adequate selection of plant, animal, and soil specimens for environmental specimen banking purposes.

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Ecology of Baltic Coastal Waters

The Baltic Sea is one of the most investigated water bodies in the world. For decades, the many highly industrialised nations around the Baltic have financed basic and applied investigations, as well as the building and development of research stations and vessels. After World War II, research in the Baltic Proper was intensified and investi- tions became much more international. The main goals of such investigations were analysis of the eutrophication and pollution of the Baltic Sea, and development of mitigating strategies (e.g. the HELCOM-Program). In contrast, research into the coastal zones was carried out mainly under national sovereignty by individual governments due to differing political regimes. Consequently, there was a lack of international collaboration and publications regarding these regions. This changed following the collapse of the former socialist governments. Nevertheless, research activities in the coastal regions still lag behind those in the Baltic Proper. A general description is further hampered by the great variety of coastal water ecosystems. The aim of this book is to overcome this lack by presenting the important Baltic coastal zones in the form of “ecological case studies”. In this way the book rep- sents an important supplement to literature concerning the Baltic Proper.

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Marine Geochemistry

Since 1980 a considerable amount of scientific research dealing with geochemical processes in marine sediments has been carried out. This textbook summarizes the state of the art in this field of research. The topics comprise the examination of sedimentological and physical properties of the sedimentary solid phase, of pore water and pore water constituents, organic matter as the driving force of most microbiological processes, biotic and abiotic redox reactions, carbonates and stable isotopes as proxies for paleoclimate reconstruction, metal enrichments in ferromanganese nodules and crusts as well as in hot vents and cold seeps on the seafloor. A new chapter describes properties, occurrence and formation of gas hydrates in marine sediments. The textbook ends with a chapter on model conceptions and computer models to quantify processes of early diagenesis.

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