Compared to single-pressure models, multipressure multiphase flow models require additional closure relations to determine the individual pressures of the different phases. These relations are often taken to be evolution equations for the volume fractions. We present a rigorous theoretical framework for constructing such equations for compressible multiphase mixtures in terms of submodels for t...

School is the main scenario of social actions where the foundations of interpersonal relations other than those of the family are laid down; it has therefore become one of the main settings for psychoeducational research. In recent years, the phenomena of poor interpersonal relations, gratuitous and cruel aggression, the resulting victimization, and the construction of a psychopathic and inmora...

OBJECTIVE To analyze the nursing staff opinion about the continuous quality improvement program at a University Hospital. METHODS A descriptive study designed as a case study, analyzing the quality program at a University Hospital, with the opinion of a sample stratified by nursing team category through a self-administered questionnaire, from May to July 2012. The answers were submitted to fa...

The rise of China/East Asia and the perceived decline of the US/West pose an emerging question about how International Relations (IR) Theory should respond to this change. Increasingly, there have been heated discussions within the Chinese IR academia over a desirable Chinese contribution to IR Theory, particularly the possibility of building a distinctive Chinese IR Theory. Inevitably, this dr...

Logic1 GLARF relations are generated from treebank and parses for English, Chinese and Japanese. We focus on evaluation of system output for both input types, often allowing for multiple correct answers.

We present and discuss a simple semantic approach to force step-indexed logical relations to be transitive.

We investigatea simple form of parametricity, based on adding \abstract" copies of pre-existing types. Connections are made with the Reynolds-Ma theory of parametricity by logical relations, with the theory of parametricity via dinaturality, and with the categorical notion of equivalence.

BACKGROUND Noninvasive assessment of functionally stenotic small-diameter aortic mechanical prostheses is complicated by theoretical constraints relating to the hemodynamic relevance of Doppler-derived transprosthetic gradients. To establish the utility of Doppler echocardiography for evaluation of these valves, 20-mm Medtronic Hall and 19-mm St Jude prostheses were studied in vitro and in vivo...