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Author: National Council on Radiation Protection and Measurements Publisher: NCRP ISBN: 0929600835 Category : Medical Languages : en Pages : 205
Book Description
Report No. 147 (2004) presents recommendations and technical information related to the design and installation of structural shielding for facilities that use x rays for medical imaging. The purpose of structural shielding is to limit radiation exposure to employees and members of the public. The information supersedes the recommendations that address such facilities in NCRP Report No. 49, Structural Shielding Design and Evaluation for Medical Use of X Rays and Gamma Rays of Energies Up to 10 MeV, which was issued in September 1976. NCRP Report No. 147 includes a discussion of the various factors to be considered in the selection of appropriate shielding materials and in the calculation of barrier thicknesses. The Report presents the fundamentals of radiation shielding, discusses shielding design goals for controlled and uncontrolled areas in or near x-ray imaging facilities and defines the relationship of these goals to the NCRP effective dose limits for radiation workers and members of the public. The Report includes a detailed discussion of the recommended shielding design methodology for x-ray imaging facilities and provides an extensive collection of shielding data and sample shielding calculations for various types of x-ray imaging facilities. The Report is mainly intended for those individuals who specialize in radiation protection. However, it will also be of interest to architects, hospital administrators and related professionals concerned with the planning of new facilities that use x rays for medical imaging.
Author: Lothar Mueller Publisher: Springer Nature ISBN: 3030674487 Category : Science Languages : en Pages : 735
Book Description
The book informs about agricultural landscapes, their features, functions and regulatory mechanisms. It characterizes agricultural production systems, trends of their development, and their impacts on the landscape. Agricultural landscapes are multifunctional systems, coupled with all nexus problems of the 21th century. This has led to serious discrepancies between agriculture and environment, and between urban and rural population. The mission, key topics and methods of research in order to understanding, monitoring and controlling processes in rural landscapes is being explained. Studies of international expert teams, many of them from Russia, demonstrate approaches towards both improving agricultural productivity and sustainability, and enhancing ecosystem services of agricultural landscapes. Scientists of different disciplines, decision makers, farmers and further informed people dealing with the evolvement of thriving rural landscapes are the primary audience of this book.
Author: Kay Alexander Publisher: Getty Publications ISBN: 0892361719 Category : Art Languages : en Pages : 346
Book Description
This sampler was designed for art specialists and art museum educators with a basic understanding of teaching discipline-based art education content. The introduction offers a brief history of the Sampler and explains its intended purpose and use. Then 8 unit models with differing methodologies for relating art objectives to the four disciplines: aesthetics, art criticism, art history, and art production, are presented. The sampler consists of two elementary units, two units for middle school, two units intended for required high school art, one high school studio ceramic unit, and a brief unit for art teachers and art museum educators that focuses on visits to art museums. Learning activities, resource material, and learning strategies are given for the units along with a sequence of lessons organized on a theme.
Author: Dwight W. Lambe Publisher: Springer Science & Business Media ISBN: 1461331595 Category : Medical Languages : en Pages : 319
Book Description
A symposium seems an appropriate vehicle to review recent, as well as new, data on important topics. It is therefore our goal to present a symposium on selected topics of importance every three years. Some topics will be updated and new topics will be presented. A vast amount of information has been accumulated over the past ten years on the significance of anaerobic bacteria in infectious diseases. This symposium was organized to discuss laboratory aspects, normal flora, pathogenicity, serology, and the patients' immune re sponse to anaerobic infection. Important imformation on the patients' immune response and serology of anaerobes which has accumulated over the last few years made these topics an important part of the sympo sium. Development of serological diagnostic tests undoubtedly will provide quicker and less expensive identification of certain anaerobic species in the future. Utilization of the patients' immune response to anaerobic septicemia has the potential of providing a diagnosis of the causative agent within 24 hours after onset of symptoms. The development of such diagnostic methods and the use of these methods in the clinical laboratory in the future would provide rapid diag nostic information to the clinician on these life-threatening infec tions. Campylobacter was included in the symposium to emphasize the important role of this organism in human acute gastroenteritis. The pathogenesis of Campylobacter in gastroenteritis has been recognized in certain European countries since 1972, although we have recognized the importance of Campylobacter gastroenteritis in the United States only within the past two years.
Author: Monika Schäfer-Korting Publisher: Springer Science & Business Media ISBN: 3642004776 Category : Medical Languages : en Pages : 506
Book Description
In the view of most experts pharmacology is on drugs, targets, and actions. In the context the drug as a rule is seen as an active pharmaceutical ingredient and not as a complex mixture of chemical entities of a well defined structure. Today, we are becoming more and more aware of the fact that delivery of the active compound to the target site is a key. The present volume gives a topical overview on various modern approaches to drug targeting covering today’s options for specific carrier systems allowing successful drug treatment at various sites of the body difficult to address and allowing to increase the benefit-risk-ratio to the optimum possible.