Springer vienna mrz 2010 (3 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Preface Development in the feld of medical technology has resulted in a manifold of medical devices enabling us to diagnose illnesses more reliably, treat them more effciently and compensate for handicaps more effectively. However, these improvements are also - sociated with safety risks. Today, patients are in contact with an increasing number of medical devices longer and more intensively then before. Applied parts are put into contact with the body, probes may be introduced into the body via natural or surgical orifces, and even whole devices may be implanted for many years. The application of devices is no longer restricted to medical locations only. Home use by lay people is increasing and involves even critical devices such as for dialysis, nerve and muscle stimulation and ventilation. In contrast to users' patients are in a special situation. Their life could depend on the performance of a device, they might be unconscious, may have impaired reactions, or have been made insensitive to pain by medication, and hence they may be exposed to hazards without their awareness and protection by their own reaction. Therefore, medical devices must meet particularly stringent safety requirements. However, the question arises how safe is safe enough The readiness to accept risks depends on a variety of accompanying circumstances. In fact, subjective risk p- ception varies among individuals and differs from country to country, and frequently only in rare cases it is in agreement with assessments of objective scientifc ana- ses. 248 pp. Englisch.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Resin glycosides are part of a very extensive family of secondary metabolites known as glycolipids or lipo-oligosaccharides and are constituents of complex resins (glycoresins) (1) unique to the morning glory family, Convolvulaceae (2). These active principles are responsible for the drastic purgative action of all the important Convolvulaceous species used in traditional medicine throughout the world since ancient times. Several commercial purgative crude drugs can be prepared from the roots of different species of Mexican morning glories. Their incorporation as therapeutic agents in Europe is an outstanding example of the assimilation of botanical drugs from the Americas as substitutes for traditional Old World remedies (3). Even though phytochemical investigations on the constituents of these drugs were initiated during the second half of the nineteenth century, the structure of their active ingredients still remains poorly known for some examples of these purgative roots. During the last two decades, the higher resolution c- abilities of modern analytical isolation techniques used in conjunction with pow- ful spectroscopic methods have facilitated the elucidation of the active principles of these relevant herbal products. This chapter describes the ethnobotanical information associated with the p- gative morning glory species and how traditional usages were instrumental in plant selection for chemical studies. The advantages and limitations of available analy- cal techniques for the isolation, puri cation, and structure characterization of the individual constituents of these complex glycoconjugates are also discussed. 188 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Trotz sozialen und politischen Engagements wurden die Logischen Empiristen allen voran die Mitglieder des Wiener Kreises nicht für ihr überschwängliches Interesse an Ethik und Wertphilosophie bekannt. Abgesehen von wenigen radikalen metaethischen Ausführungen hätten sie keinerlei Interesse an Fragen der Moral und Lebenspraxis gezeigt. Ihnen wurde sogar vorgeworfen, Werte und Moral zu zerstören. Der Umstand, dass sich viele aus der Bewegung um Moritz Schlick, Rudolf Carnap und Otto Neurath diesen Bereichen sehr wohl zuwandten und sich in vielfältiger Weise dazu äußerten, wird bis heute kaum zur Kenntnis genommen. Die Autorinnen und Autoren unternehmen in diesem Band eine längst fällige Neubewertung logisch-empiristischer Positionen in Fragen von Werten und Moral und beleuchten die wissenschaftlich-humanistisch motivierte Ablehnung traditioneller Ethik jenseits vorherrschender Klischeebilder. 256 pp. Deutsch. …