Search results for "utili"

Building a benchmark through active surveillance of intensive care unit-acquired infections: the Italian network SPIN-UTI.

2010

The Italian Nosocomial Infections Surveillance in Intensive Care Units (ICUs) (SPIN-UTI) project of the Italian Study Group of Hospital Hygiene (GISIO - SItI) was undertaken to ensure standardisation of definitions, data collection and reporting procedures using the Hospital in Europe Link for Infection Control through Surveillance (HELICS)-ICU benchmark. Before starting surveillance, participant ICUs met in order to involve the key stakeholders in the project through participation in planning. Four electronic data forms for web-based data collection were designed. The six-month patient-based prospective survey was undertaken from November 2006 to May 2007, preceded by a one-month surveilla…

Neoclassical Growth, Environment and Technological Change: The Environmental Kuznets Curve

2009

The paper investigates socially optimal patterns of economic growth and environmental quality in a neoclassical growth model with endogenous technological progress. In the model, the environmental quality affects positively not only to utility but also to production. However, cleaner technologies can be used in the economy whether a part of the output is used in environmentally oriented R&D. In this framework, if the initial level of capital is low then the shadow price of a cleaner technology is low relative to the cost of developing it given by the marginal utility of consumption and it is not worth investing in R&D. Thus, there will be a first stage of growth based only on the accumulati…

Revealed preference and portfolio choice

1993

Abstract We show that the necessary and sufficient conditions for expected utility rationalizability of a single observed portfolio choice are identical to the necessary and sufficient conditions for non-expected utility rationalizability.

Investing for the Long Run

2017

This paper studies long term investing by an investor that maximizes either expected utility from terminal wealth or from consumption. We introduce the concepts of a generalized stochastic discount factor (SDF) and of the minimum price to attain target payouts. The paper finds that the dynamics of the SDF needs to be captured and not the entire market dynamics, which simplifies significantly practical implementations of optimal portfolio strategies. We pay particular attention to the case where the SDF is equal to the inverse of the growth-optimal portfolio in the given market. Then, optimal wealth evolution is closely linked to the growth optimal portfolio. In particular, our concepts allo…

A Problem of Optimization in a Case of Foreign Investment

2000

The aim of the paper is to solve an optimization problem in an economic system with a central bank and a set of private agents. Each agent aims to maximize her expected utility, with rational expectations and being risk averse. The agents follow a profitability-risk criterium to face the portfolio diversification problem between foreign or domestic investment. An explicit formula for the optimal amount of foreign investment as a function of the expected exchange rate and an explicit formula for the exchange rate are obtained. These formulas show the hard influence of the expected exchange rate, the variance and the risk aversion on the agents’ decisions.

The use of differentiated Pedagogy in the Elementary School Classroom and its Psychological Determinants

2010

The purpose of this study is to understand the fundamental reasons enhancing elementary school teachers to accept, or not, the use of differentiated pedagogy in the classroom. A derivative model of Ajzen's planned behaviour theory is tested, upon a sample of 111 Tours-city teachers, with applying a structural equation modeling technique (causal path analysis using maximum likelihood estimates). It combines four psychological determinants of the use of differentiated pedagogy: perception of difficulties, beliefs in norms, behavioural beliefs, and global attitude towards behaviour. This model is adjusted exactly to data. Global attitude has the most important impact on behaviour, perception o…

Archéologie du cheval

2002

Ouvrage de vulgarisation; Les restes d'équidés découverts sur les sites archéologiques constituent la source documentaire la plus cohérente que l'on puisse imaginer pour écrire l'histoire du cheval et de ses rapports avec l'homme, sur une période qui couvre sept millénaires, du Mésolithique aux temps modernes.Cette présentation repose essentiellement sur les découvertes archéologiques réalisées en France, mais certaines approches synthétiques prennent en compte un domaine plus large, celui de l'Europe. De même, si l'accent est mis sur l'apport des ossements découverts en fouille, d'autres sources, iconographiques ou textuelles notamment, sont sollicitées ici et là. Nous n'avons pas les moye…

Altermundialización ciudadana

2003

Una lengua con otras lenguas / 2

2008

Determining a healthy reference range and factors potentially influencing PRO-C3 – A biomarker of liver fibrosis

2021

Background & Aims Progressive fibrosis has been identified as the major predictor of mortality in patients with non-alcoholic fatty liver disease (NAFLD). Several biomarkers are currently being evaluated for their ability to substitute the liver biopsy as the reference standard. Recent clinical studies in NAFLD/NASH patients support the utility of PRO-C3, a marker of type III collagen formation, as a marker for the degree of fibrosis, disease activity, and effect of treatment. Here we establish the healthy reference range, optimal sample handling conditions for both short- and long-term serum storage, and robustness for the PRO-C3 assay. Methods PRO-C3 was measured in 269 healthy volunteers…