R. Alexander – författare

Many countries are currently exploring the option to dispose of highly radioactive solid wastes deep underground in purpose built, engineered repositories. A number of surface and shallow repositories for less radioactive wastes are already in operation. One of the challenges facing the nuclear industry is to demonstrate confidently that a repository will contain wastes for so long that any releases that might take place in the future will pose no significant health or environmental risk.One method for building confidence in the long-term future safety of a repository is to look at the physical and chemical processes which operate in natural and archaeological systems, and to draw appropriate parallels with the repository. For example, to understand why some uranium orebodies have remained isolated underground for billions of years. Such studies are called ''natural analogues''.This book investigates the concept of geological disposal and examines the wide range of natural analogues which have been studied. Lessons learnt from studies of archaeological and natural systems can be used to improve our capabilities for assessing the future safety of a radioactive waste repository.

The first purpose of this book is to provide a comprehensive review of the state of development of natural analogue studies with emphasis on those studies which are relevant to the following repository designs: Nagra (Switzerland) disposal concepts for high-level waste/low and intermediate-level waste; SKB (Sweden) disposal concepts for spent fuel/low and intermediate-level waste; and Nirex (UK) disposal concept for low and intermediate-level waste.The book''s second aim is to discuss the expanding application of natural analogues for non-performance assessment purposes, especially their potential for presenting the concept of geological disposal to various interested audiences in a coherent, understandable and scientifically legitimate manner.Much of the discussion of the book is relevant to concepts for geological disposal of radioactive wastes by other countries, and is concerned only with those physico-chemical processes which control the release of radionuclides from the near-field, and their subsequent retardation and transport in the geosphere.

Key Topics in Urology gives a broad, up-to-date understanding of common urological conditions. Each topic addresses the mode of presentation, management and outcome of these conditions. As well as being relevant for specific examinations, the book provides a review of conditions frequently encountered by the on-call registered medical practitioner who may not have specific training in urology. This book is essential revision guide for the MRCS and FRCS examinations and a useful reference source for higher surgical trainees without training in urology, GPs and nurses.

This study represents but the initial phase of a multidisciplinary endeavor sponsored by the Russian and East European Studies Center of the University of California, Los Angeles, the ultimate goal of which is to provide a comprehensive description and analysis of the cultural, linguistic, economic and social integration of the Slavs living in California into American society. As the first step of this planned cross-disciplinary investigation, the Center recommended the implementation of a preliminary study of a limited scope, the present linguistic investigation of the Yugoslav community of San Pedro, California. As there is a dearth of information of a sociological as well as a linguistic nature pertaining to the local Slavs, the investigators decided to treat briefly the sociological situation of Yugoslav immigrants and then proceed with a more detailed discussion of the linguistic problems of immigrant bilingualism. Consequently, we have divided the present study into the following major chapters : Chapter I, the Yugoslav Immigration to America, not only examines the several phases of Yugoslav immigration to the United States, but also discusses the various motives which prompted people to immigrate to this country and especially to the small maritime community of San Pedro; against this background the investigators describe the Yugoslav ethnic minority and its contributions to the San Pedro community.

This study represents but the initial phase of a multidisciplinary endeavor sponsored by the Russian and East European Studies Center of the University of California, Los Angeles, the ultimate goal of which is to provide a comprehensive description and analysis of the cultural, linguistic, economic and social integration of the Slavs living in California into American society. As the first step of this planned cross-disciplinary investigation, the Center recommended the implementation of a preliminary study of a limited scope, the present linguistic investigation of the Yugoslav community of San Pedro, California. As there is a dearth of information of a sociological as well as a linguistic nature pertaining to the local Slavs, the investigators decided to treat briefly the sociological situation of Yugoslav immigrants and then proceed with a more detailed discussion of the linguistic problems of immigrant bilingualism. Consequently, we have divided the present study into the following major chapters : Chapter I, the Yugoslav Immigration to America, not only examines the several phases of Yugoslav immigration to the United States, but also discusses the various motives which prompted people to immigrate to this country and especially to the small maritime community of San Pedro; against this background the investigators describe the Yugoslav ethnic minority and its contributions to the San Pedro community.