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This volume includes contributions presented at the Second International Sym posium on Nutrition and Cancer, held in Naples, Italy, in October 1998 at the National Tumor Institute "Fondazione Pascale." During the Conference, experts from different disciplines discussed pivotal and timely subjects on the interactions between human nutrition and the development of malignancies. Comparing the themes of this Meeting with those discussed at the First Sympo sium in 1992, the major scientific advancements certainly derive from the extensive use of molecular approaches to perform research in nutrition. Moreover, the fundamental observation of R. Doll and R. Peto (1981), which suggested that at least 35% of all cancers (with large differences among different tumors) might be prevented by dietary regimens, has been definitively confirmed by epidemiological studies. On the other hand, the relationships between diet and cancer are quite intricate and complex; it is difficult, and at the same time not methodologically correct, to reduce them to simple terms. Metabolic and hormonal factors, contaminants and biological agents, and deficiency of specific protective nutrients are all pieces of the same puzzle.
The third volume of the fully revised and expanded general catalogue of Roman coins extends coverage of the Imperial series from the accession of Maximinus I in AD 235 down to the assassination of Carinus and the accession of Diocletian half a century later. This turbulent period, during which the Empire came close to total collapse and disintegration, witnessed great changes in the Imperial coinage including unprecedented debasement and the beginning of the decentralization of the mint system.
Chicago's extensive transit system first started in 1859, when horsecars ran on rails in city streets. Cable cars and electric streetcars came next. Where new trolley car lines were built, people, businesses, and neighborhoods followed. Chicago quickly became a world-class city. At its peak, Chicago had over 3,000 streetcars and 1,000 miles of track--the largest such system in the world. By the 1930s, there were also streamlined trolleys and trolley buses on rubber tires. Some parts of Chicago's famous "L" system also used trolley wire instead of a third rail. Trolley cars once took people from the Loop to such faraway places as Aurora, Elgin, Milwaukee, and South Bend. A few still run today.
While the elevated Chicago Loop is justly famous as a symbol of the city, the fascinating history of its subways is less well known. The City of Chicago broke ground on what would become the "Initial System of Subways" during the Great Depression and finished 20 years later. This gigantic construction project, a part of the New Deal, would overcome many obstacles while tunneling through Chicago's soft blue clay, under congested downtown streets, and even beneath the mighty Chicago River. Chicago's first rapid transit subway opened in 1943 after decades of wrangling over routes, financing, and logistics. It grew to encompass the State Street, Dearborn-Milwaukee, and West Side Subways, with the latter modernizing the old Garfield Park "L" into the median of Chicago's first expressway. Take a trip underground and see how Chicago's "I Will" spirit overcame challenges and persevered to help with the successful building of the subways that move millions. Building Chicago's subways was national news and a matter of considerable civic pride--making it a "Second City" no more
This APHA bestseller offers a complete set of community-oriented primary care skills for health professionals who need to access these skills quickly and learn the basics in a brief amount of time. It provides a broad view of experiences and processes faced by health professionals and community leaders in addressing a series of health problems for their defined populations. This book provides a complete set of COPC skills for the health professional who needs to be able to access these skills quickly and learn the basics of COPC in a brief amount of reading time.
Although sponges are one of the major components of littoral ecosystems, their systematics obviously lags behind that of the majority of other groups of marine invertebrates. Also the evolutionary trends in these most primitive of the Metazoans are poorly understood. The confused state of their taxonomy and the difficulties with their identification prevent their use in ecological studies. The emphasis of interest presently seems to have shifted towards chemistry, but many of the hundreds of interesting chemicals recently described in sponges pro bably have been found in mistakenly or imprecisely identified animals. This situ ation will become worse in the next few years, when a number of experts will retire and will not be replaced by new ones, owing to the difficulties that the science of systematics is facing in most countries - as exemplified during this meeting by an informal discussion on the endangered future of European Museums. Under these circumstances, it is the responsability of present sponge taxono mists to leave a less confused state and tools such as simple fauna or computerized data bases to generations following. These tools do not exist even in one of the best studied areas, the North-Eastern Atlantic (including the Mediterranean Sea).