This practical, hands-on resource describes functional units and circuits of telecommunication systems. The functions characterizing these systems, including RF amplifiers (both low noise and power amplifiers), signal sources, mixers and phase lock loops, are explored from an operational level viewpoint. And as all functions are migrating to digital implementations, this book describes functional units and circuits of telecommunication systems (with radio, wire, or optical links), from functional level viewpoint to the circuit details and examples. The structure of a radio transceiver is described and a view of all functional units, including migration to SDR (Software Defined Radio) is provided. Chapters include a functional identification of the units described and analysis of possible circuit solutions and analysis of error sources. The sequence reflects the actual design procedure: functional identification, search and analysis of solutions, and critical review to provide an understanding of the various solutions and tradeoffs, with guidelines for design and/or selection of proper functional units.
About two centuries after the communication by Sir Percival Pott that the "chimney sweeper disease" was a cancer and its suggestion that active compounds of soot were the causative agents, and about one century after the description of urinary bladder cancer in dye workers, an enormous number of substances have been synthesized and have probably come into contact with man. Research in cancer prevention is of primary importance, and may receive continuous support from new discoveries on cancer etiology and pathogenesis. If one accepts the multistage model of chemical carcinogenesis, one has also to accept that many events occur between the contact of carcino genic compounds and their specific targets and the development of a clinically recognizable neoplasm. Thus, animal studies become essential to elucidate the different steps by which chemical carcinogens induce neoplasia. The analysis of these steps and the comparative evaluation of experimental models is essential to an understanding of pathogenesis.
Confidently sign out your most complex and challenging cases with the updated edition of Differential Diagnosis in Surgical Pathology. Widely used by residents and practicing pathologists alike, this comprehensive medical reference provides brief, bulleted descriptions of both common and rare disorders, integrating excellent illustrative examples of the pathology with selected references. It's the perfect go-to resource to have by your microscope! Quickly access essential information through concise, bulleted text; a consistent approach to diagnosis and interpretation; and a comprehensive yet manageable size. Formulate an accurate diagnosis with coverage of all of the relevant ancillary diagnostic techniques, and ensure every diagnostic possibility is explored with help from quick checklists throughout. Make informed decisions when delineating one disease from another with discussions covering all of the major organ systems. Understand what diagnostic criteria to consider or exclude with expert "pearls" and practical tips throughout. Take advantage of extensive updates on tumor classifications and diseases, as well as expanded coverage of medical renal pathology. Stay abreast of the latest developments in molecular testing, including diagnostics, biomarkers, and targeted therapies, for entities such as the breast, lung, gastrointestinal tract, and melanoma. View over 1,350 full-color macro and microphotographs that provide a realistic basis for comparison to what you see under the microscope. Expert Consult eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, references, and videos from the book on a variety of devices.
La tranquillità di un piccolo centro rurale viene scossa da una efferata e sanguinosa rapina in villa. Stesa a terra non rimane la vittima prescelta, bensì uno dei predoni, sospettato di appartenere a una delle tante bande che scorrazzano nel Bel Paese nella quasi assoluta impunità. Gerry Donati, un investigatore privato, viene incaricato di recuperare il cospicuo bottino che i compari del morto sono riusciti a portar via. Con l’ausilio di un singolare collaboratore, indaga mettendo a nudo vizi e debolezze di una società perbenista e tranquilla solo in apparenza, scoprendo scomode e insospettabili verità. La vicenda si svolge nella cornice della ricca provincia veneta, nella quale i radicati costumi locali si intrecciano con le problematiche ormai globali dei nostri tempi.
A daring novel, once widely censored, about the scrappy, harrowing, and inventive lives of Rome's unhoused youth by one of Italy's greatest film directors. Boys Alive, published in 1955, was Pier Paolo Pasolini's first work of fiction and it remains his best known. Written in the aftermath of Pasolini's move from the provinces to Rome, the novel captures the. hunger and anger, waywardness and squalor of the big city. The life of the novel is the life of the city streets; from the streets, too, come its raw, mongrel, assaultive language. Here unblinkered realism and passionate lyricism meet in a vision of a vast urban inferno, blazing with darkness and light. There is no one story to the book, only stories, splitting off, breaking away, going nowhere, flaming out, stories in which scenes of comic debacle, bitter conflict, wild joy, and crushing disappointment quickly follow. Pasolini's young characters have nothing to trade on except youth, and the struggle to live is unending. They loot, hustle, scavenge, steal. Somehow money will turn up; as soon as it does it will get spent. The main thing, in any case, is to have fun, and so the boys boast and vie, the desperate uncertainty of their days and nights offset by the fabulous inventiveness of their words. A warehouse heist, a night of gambling, the hunt for sex: The world of Boys Alive is a world in convulsion where at any instant disaster may strike. Tim Parks' new translation of Pasolini's early masterpiece brings out the salt and brilliance of a still-scandalous work of art.
The “provocative” novel about hard-living teenagers in poverty-stricken postwar Rome, by the renowned Italian filmmaker (The New York Times). Set during the post–World War II years in the Rome of the borgate—outlying neighborhoods beset by poverty and deprivation—The Street Kids tells the story of a group of adolescents belonging to the urban underclass. Living hand-to-mouth, Riccetto and his friends eke out an existence doing odd jobs, committing petty crimes, and prostituting themselves. Rooted in the neorealist movement of the 1950s, The Street Kids is a tender, heart-rending tribute to an entire social class in danger of being forgotten. Heavily censored and criticized, lambasted by much of the general public upon its publication, The Street Kids nevertheless had a force and vitality that eventually led to its being considered a masterpiece. This new translation comes from Ann Goldstein, the acclaimed translator of Elena Ferrante’s Neapolitan novels.
Questo è un diario del viaggiatore 2.0: quello dei computer portatili, dei blog, del WiFi, delle reflex digitali, ma soprattutto del COUCHSURFING, un modo tutto nuovo, interessante ed economico di viaggiare. Un anno in Estonia, cinque mesi a Tenerife, passando per viaggi in Lettonia, Lituania, Polonia, Repubblica Ceca, Russia, Svezia, Marocco e Sahara Occidentale. Ma tutto ebbe inizio da un anno di Erasmus. Che ti cambia la vita.
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