Bøger udgivet af Kluwer Academic Publishers Group

Between 15 and 27 February 1993, the XXIX Winter School of Theoretical Physics was held in the Hotel Gwarek in Kudowa Zdroj, Poland. The present volume contains the proceedings of the Winter School. In keeping with the name Die Kunst of Phonons, the School was dedicated to the physics of phonons. Historically the field of phonons has been a conglomeration of various directions related only by the fact that phonons were involved. The subject has matured greatly and it is now possible to speak of a field of phonon physics proper. Further, it is possible to speak of many of the phenomena seen in phonon physics as being, truly, beautiful. As the object of the book is to present tutorial reviews of the state of the art (Kunst) together with the fact that the state of the art often times reveals beautiful phenomena (more Kunst) we chose a title that reflected this and was also arresting, forcing the prospective reader to stop and reconsider his preconceptions about phonon physics. The use of the german word (with its echoes of Bach's "die Kunst der Fuge") enhances the effect on the prospective reader.

Proceedings of the 4th International Symposium on Ceramic Materials and Components for Engines, organized by the Swedish Ceramic Society and held at Goeteborg, Sweden

The Bishop Bekkers Foundation, devoted to the welfare of those with mental handicap and to the amelioration and prevention of this and related disabilities, is to be warmly congratulated for sponsoring and organizing the 1986 Inter national Workshop from which the present book is derived.

Process Aids and Plasticizers . A Review of Elastomers Used for Oilfield Sealing Environments . Using Modern Mill Room Equipment . Quality Requirements and Rubber Mixing . Health and Safety . AGGARWAL Gen Corp , Research Division, 2990 Gilchrist Road, Akron, Ohio 44305, USA C.

This monograph grew out of research at Xerox PARC and the Center for the Study of Language and Information (CSLI) during the first year of CSLI's existence.

Proceedings of the International Symposium held at Muskoka, Ontario, September 15-20, 1985

ided the opportunity for a group of experts from the Industry, academia and the regulatory authorities to meet and discuss ways and means by which risk benefit decisions are made during the various stages of drug development.

There is no shonage of books on cancer. The quest to understand and control cancer is so absorbing that from time 10 time we really need to pause for a moment and try to take stock of the situation.

The original series, Advances in Prostaglandin Research, edited by Sultan M. selected chapters from each book in the series will provide illuminating and productive information for all readers which will advance their education and research.

Atrophy of gonadotrophin producing cells Exogenously LH synthesis administered androgens and release or anabolic steroids are decreased Prostate Testes Normal function. Testosterone synthesis in The deficit of endogenously Leydig cells is decreased. The synthesized testosterone is exogenously administered compensated for by the steroid is not able to exogenously administered compensate for the deficit of steroid endogenously synthesized testosterone Figure 2 Intratesticular and serum testosterone concentrations after treatment with andro­ gens or anabolic steroids in order to substitute for the peripheral androgen deficiency and to achieve azoospermia. Because this steroid is alkylated in position 17, toxic effects on liver function can not be excluded. Danazol offers no advantages as compared with other anabolic steroids; rather, disadvantages. Numerous experiments of this type have been performed during the last 40 or 50 years. The outcome in each case was more or less identical: with a certain dose of an androgen or anabolic steroid it is possible to inhibit spermatogenesis without interfering with other androgen-dependent func­ tions, including libido (potentia coeundi) and accessory sexual glands. On the basis of this pharmacological-endocrinological background, androgens and anabolic steroids can be used for male fertility control, and several clinical trials have been performed during the last 10-15 years. Some of 1 these studies 2-23 are mentioned in Table 2.

Since their introduction to medical practice in 1960, benzodiazepines have become among the most commonly prescribed medications and have, to a great extent, replaced prescriptions of short-acting barbiturates and other sedative-hypnotics. The discovery of their psychoactive properties was almost missed. During a cleaning of their laboratory in April of 1957, Earl Reeder called to Leo Sternbach's attention several hundred milligrams of a substance and its hydrochloride salt they had synthesized in 1955 which had not been submitted for pharmacological testing. They sent the hydrochlor­ ide salt, later given the generic designation of chlordiazepoxide (Librium), for animal testing to the pharmacology department, which was under the direction of Lowell Randall. Six tests, used for preliminary screening of tranquilizers and sedatives, were conducted. Dr. Randall phoned Dr. Sternbach a few days later to report that the compound possessed interesting psychotropic properties in animals (Sternback. 1983). Subse­ quently over 3000 1,4 benzo-and heterodiazepines have been synthesized (Sternbach, 1983). and more is known about the mechanism of action of this class of medications than any other psychotropic drug class (Haefely, 1983). Used for treatment of anxiety. insomnia. muscle spasticity, convulsive disorders, anesthesia adjuncts and alcohol detoxification. the benzodiazepines have significant advantages over their predecessor medi­ cations: the short-acting barbiturates, meprobamate and methaqualone. Of significance is their high lethal/therapeutic ratio. of importance in cases of overdose; their failure to activate liver microsomal enzymes.

Conference proceedings from ISEC 93. Published on behalf of the Society for Chemistry in Industry.

Co-published with Computational Mechanics Publications, UK. Papers presented at the Third International Conference on Computer Aided Technology Design in Composite Material Technology, University of Delaware, Newark, USA, May 1992.

Proceedings of the European Workshop on Ordering and Disordering held in Grenoble, France, 10-12 July 1991.

At the personal invitation of the Programme Committee, 17 individuals, each of whom have different professional backgrounds and nationalities, prepared a paper and met for a symposium in Elsinore, Denmark, in September of 1990.

Quality standards (BS 5750, AQAP, ISO 9000 series) distinguish between companies carrying out, on the one hand, both design and manufacturing fixed functions and, on the other hand, those who only manufacture to specifications.

This volume records the proceedings of an international conference organised as a tribute to the contribution made by Professor H.

Because of the sheer size and scope of the plastics industry, the title Developments in Plastics Technology now covers an incredibly wide range of subjects or topics.

Constitutive equations refer to 'the equations that constitute the material response' at any point within an object. They are one of the ingredients necessary to predict the deformation and fracture response of solid bodies (among other ingredients such as the equations of equilibrium and compatibility and mathematical descriptions of the configuration and loading history). These ingredients are generally combined together in complicated computer programs, such as finite­ element analyses, which serve to both codify the pertinent knowledge and to provide convenient tools for making predictions of peak stresses, plastic strain ranges, crack growth rates, and other quantities of interest. Such predictions fall largely into two classes: structural analysis and manufacturing analysis. In the first category, the usual purpose is life prediction, for assessment of safety, reliability, durability, and/or operational strategies. Some high-technology systems limited by mechanical behavior, and therefore requiring accurate life assess­ ments, include rocket engines (the space-shuttle main engine being a prominent example), piping and pressure vessels in nuclear and non-nuclear power plants (for example, heat exchanger tubes in solar central receivers and reformer tubes in high-temperature gas-cooled reactors used for process heat applications), and the ubiquitous example of the jet engine turbine blade. In structural analysis, one is sometimes concerned with predicting distortion per se, but more often, one is concerned with predicting fracture; in these cases the informa­ tion about deformation is an intermediate result en route to the final goal of a life prediction.

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The report examines the extent of environmental damage in the Community and in certain other European countries that may be attributable to acid pollutant emissions within Member States.

At attempt is made here to provide a comprehensive The Basement "massifs" roughly delimit the main account in book form of the Petroleum Geology of sedimentary areas of the: Nigeria, a country which in 1979 was the world's 1. ABAKALIKI, BENUE, GONGOLA AND YOLA sixth largest oil producer and rated the twelfth gIant TROUGHS petroleum province of the world by Ivanhoe (1980) 2. BIDA OR MIDDLE NIGER BASIN in terms of known recoverable resources (cumulatIve 3. SOKOTO EMBAYMENT OF THE IULLEM production + proven + probable reserves) of oil and MEDEN BASIN 4. BORNU-CHAD BASIN gas. . 5. DAHOMEY BASIN Nigeria, which has been an indepe. ndent sovereIgn country since 1960, faces the AtlantIc Ocean on the These basins and troughs, taken together with the south, is bounded by the Peoples' Republic of Benin onshore part of the Nigeria Delta Complex, occupy (ex-Dahomey) on the west, by the Republic of Niger about 178 000 square miles, half the total area of and by the Sahara on the north, the Republic of Chad Nigeria. Figure 3 shows the area of Nigeria in com on the northeast, and is bounded by the Umted Re parison to areas of other well known petroleum public of Cameroun on the east. It now consists of provinces and units, such as the Gulf. Coast of. the 19 states organized in a federation and, largely be United States, North Sea etc."

Because of the sheer size of the plastics industry, the title Developments in Plastics Technology now covers an incredibly wide range of subjects or topics. When one considers the materials produced and used by the modern plastics industry, there is a tendency to think of the commodity thermoplastics (such as poly(vinyl chloride) or polyethylene);