Search results for "Lua"

Influence of cheese composition on the aroma content, release and perception

2022

Le nombre de sujets dans les panels d'analyse sensorielle : une approche base de données

2012

The costs associated with sensory evaluation increase with the number of panelists to be enrolled. Classical power computation can be used to derive the minimal number of subjects of a sensory panel in order to control both type I (α risk) and type II (β risk) errors. However, this power computation requires estimates of the size of the product effect to be sought and of the residual variability of the ANOVA model used. Generally, both product effect size and residual variability are difficult to estimate a priori by the sensory analyst. This work offers estimations of these two parameters thanks to the analysis of hundreds descriptive andhedonic studies collected respectively in two databa…

SINGLE FACTOR STOCHASTIC MODELS WITH SEASONALITY APPLIED TO UNDERLYING WEATHER DERIVATIVES VARIABLES

2003

This paper estimates single factor stochastic models describing daily air temperature behaviour. We modify classical financial models to reflect temperature seasonality and fit them to a time series representing temperatures in Spain. The estimated models are used in Montecarlo simulations to obtain heating and cooling degree-days, which are used as an underlying reference in weather derivatives. The final goal of this work is to obtain an insight into weather derivative valuation, and so making it easier to manage economic activity risks closely related to temperature (i.e. oil, gas and electricity prices and volumes). En este trabajo se estiman modelos estocásticos unifactoriales que desc…

Nursing home vouchers in Spain: the Valencian experience

2002

The main purpose of this paper is to evaluate the innovative nursing home voucher scheme that was introduced by the Valencia Autonomous Region of Spain in the early 1990s to implement targets laid down by the national plan for the development of older people's services. The article begins with a review of the evolution of Spanish social services, and especially the nursing home sector, and then summarises the genesis, objectives and characteristics of the voucher scheme. The main part of the paper reports a performance analysis and economic evaluation of the programme. On the basis of detailed information over four years, it is concluded that nursing home vouchers have contributed to the in…

Experimental Performance Evaluation of Cloud-Based Analytics-as-a-Service

2016

An increasing number of Analytics-as-a-Service solutions has recently seen the light, in the landscape of cloud-based services. These services allow flexible composition of compute and storage components, that create powerful data ingestion and processing pipelines. This work is a first attempt at an experimental evaluation of analytic application performance executed using a wide range of storage service configurations. We present an intuitive notion of data locality, that we use as a proxy to rank different service compositions in terms of expected performance. Through an empirical analysis, we dissect the performance achieved by analytic workloads and unveil problems due to the impedance…

Handling stakeholder uncertain judgments in strategic transport service analyses

2013

Abstract The quality level of services has to be constantly controlled, especially under conditions of competition increasing and limited resources. However, considering that service performance analyses are based on stakeholders' judgments, they can be characterized by possible uncertainties related to incompleteness for partial ignorance, imprecision for subjectivity and even vagueness. Therefore, under these conditions, unreliable results can be obtained by widely used service analysis methodologies. In the present paper, a methodology based on a recent extension of the SERVQUAL model, and that uses in combined manner the fuzzy set theory and the analytic hierarchy process method is prop…

Design and validation of an evaluation questionnaire of clinical supervision

2018

Resumen basado en el de la publicación Título, resumen y palabras clave también en español e inglés Disponible la versión en español La supervisión clínica en medicina es una modalidad de enseñanza en el servicio que persigue como fin la práctica independiente de la profesión médica. En la supervisión clínica el profesor asume una función de modelador del desempeño de los estudiantes en un contexto de práctica profesional real. El objetivo es reportar el proceso de investigación que permitió desarrollar un cuestionario de evaluación formativa de la supervisión clínica con base en la opinión de los estudiantes. El método consistió en tres estudios empíricos: (1) un proceso de exploración del…

Assessing mental health therapeutic communities functioning

2019

Empirical and clinical evidence shows that therapeutic communities produce changes in people’s mental health and well-being. Treatment in communities has effects on improving interpersonal relationships, acceptance among members, ability to recognize other people’s feelings, symptomatology, life satisfaction and self-esteem. This paper aims to investigate which factors can explain the treatment effectiveness, measured by an index which incorporates the point of view of the communities staff members, by means of a beta regression model with random intercept. The results show the influence of some organizational dimension as well as staff roles, providing a meaningful insights into the functi…

Value dimensions in consumers’ experience: Combining the intra- and inter-variable approaches in the hospitality sector

2015

Within the deep and extensive research on value, two main areas of discussion emerge: multidimensionality (intra-variable approach) and interrelationships with other constructs (inter-variable approach). Independently, the two areas have produced relevant knowledge; however, when studying them jointly, the results are inconsistent. The paper aims first to build four self-oriented value scales for a hospitality experience (efficiency, quality, play, and aesthetics), and second to test them in a SEM model with overall perceived value, customer satisfaction, and customer loyalty, upon a sample of 585 hotel consumers in Sardinia (Italy). The results show both unexpected (for the intra-variable …

Monetary Valuations of Monumental Trees and Other Natural Resources between Demand for Conservation and Recent Requirements for Outdoor Activities: S…

2011

The focus of this paper is on the valuation of the benefits that local communities living in protected areas may perceive with regard to some specific natural resources, and in particular to Monumental Trees. The current economic crisis which involves countries at world level, leads to think that in the near future the financial resources to be destined for interventions in favour of these environmental goods will be more and more scarce, with the result that most monumental trees will not be protected and this natural heritage will be totally degraded and therefore lost to local communities. Three Sicilian case studies were investigated, two concerning the Madonie Regional Natural Park, an…