A method of low-temperature liquid-phase sintering was used to prepare SrB2Si2O8 glass-ceramics in order simulate immobilization 90Sr, and the SrO–B2O3 system as a flux could avoid new impurities be introduced into solidified body. The behaviors, mechanical properties solidification behaviors were investigated. crystalline phase formed by liquid at 1223 K. Additionally, adding Ca2+ improves beh...

Rev Esp Cardiol 2002;55(12):1223-5 1223 The sharp reduction in coronary blood flow produced by a thrombus generally precipitates acute or unstable coronary syndromes (ACS). Unlike venous thrombosis, arterial thrombosis takes place in areas where the vessel wall is damaged in some way. In the coronary arteries, the lesion usually is a fissured or ruptured atheroma plaque, endothelial denudation ...

BACKGROUND When medically unexplained physical symptoms (MUPS) become persistent, it may have major implications for the patient, the general practitioner (GP) and for society.Early identification of patients with MUPS in electronic medical records (EMRs) might contribute to prevention of persistent MUPS by creating awareness among GPs and providing an opportunity to start stepped care manageme...

In this task, some mechanical properties and diffusion kinetics of boronized layers on X65Cr14 martensitic stainless steel were investigated. The boronization treatments carried out at 1123, 1173, 1223 1323 K with 2, 4, 6 8 hours using the packing process. characterized by optical microscopy, X-ray diffraction, micro-Vickers hardness tester. produced exhibited smooth regular morphology. thickne...

The Okapi system has been used in a series of experiments on the TREC collections, investigating probabilistic models, relevance feedback and query expansion, and interaction issues. The TREC-6 ad hoc task was used to test an application of a new relevance weighting formula, which takes account of documents judged nonrelevant. The application was to a form of blind feedback (using the top-ranke...

This paper aims to show how we can make progress in elucidating how people understand speech by changing our focus of inquiry from abstraction of formal units of linguistic analysis to a detailed analysis of global aspects of the communicative situation, of which speech is just one part. It uses evidence of (a) the communicative importance of fine phonetic detail and (b) exemplar memory for spe...

This paper uses German evidence to address two questions about corporate governance. The effects of ownership on corporate governance have received much recent attention, but very little of this has been devoted to the appropriate way to measure firm ownership. The results of this paper show that the conclusions reached about the effects of ownership on corporate governance can depend criticall...