Search results for "EIV"
showing 10 items of 833 documents
The role of trust in cruise passenger behavioral intentions : The moderating effects of the cruise line brand
2014
Purpose– The purpose of this paper is to develop and test a framework to investigate the relationship between perceived value, satisfaction, trust and behavioral intentions and the moderator effect of the cruise line on cruise passengers’ perceptions.Design/methodology/approach– A structural model was developed. In order to verify the hypotheses, a total of 729 cruise passengers were sampled. The study of the data used structural equation models by means of a multi-group analysis.Findings– The results of this study suggest significant paths to increase behavioral intentions: perceived service quality? satisfaction? trust?. In addition, it has been proved that the cruise line moderates the r…
Uncertainty estimation of a complex water quality model: GLUE vs Bayesian approach applied with Box – Cox transformation
2010
In urban drainage modelling, uncertainty analysis is of undoubted necessity; however, several methodological aspects need to be clarified and deserve to be investigated in the future, especially in water quality modelling. The use of the Bayesian approach to uncertainty analysis has been stimulated by its rigorous theoretical framework and by the possibility of evaluating the impact of new knowledge on the modelling estimates. Nevertheless, the Bayesian approach relies on some restrictive hypotheses that are not present in less formal methods like GLUE. One crucial point in the application of Bayesian methods is the formulation of a likelihood function that is conditioned by the hypotheses …
Uncertainty propagation throughout an integrated water-quality model
2010
In integrated urban drainage water quality models, due to the fact that integrated approaches are basically a cascade of sub-models (simulating sewer system, wastewater treatment plant and receiving water body), uncertainty produced in one sub-model propagates to the following ones depending on the model structure, the estimation of parameters and the availability and uncertainty of measurements in the different parts of the system. Uncertainty basically propagates throughout a chain of models in which simulation output from upstream models is transferred to the downstream ones as input. The overall uncertainty can differ from the simple sum of uncertainties generated in each sub-model, dep…
An energy analysis of IEEE 802.15.6 scheduled access modes
2010
Body Area Networks (BANs) are an emerging area of wireless personal communications. The IEEE 802.15.6 working group aims to develop a communications standard optimised for low power devices operating on, in or around the human body. IEEE 802.15.6 specifically targets low power medical application areas. The IEEE 802.15.6 draft defines two main channel access modes; contention based and contention free. This paper examines the energy lifetime performance of contention free access and in particular of periodic scheduled allocations. This paper presents an overview of the IEEE 802.15.6 and an analytical model for estimating the device lifetime. The analysis determines the maximum device lifeti…
Rateless Codes Performance Analysis in Correlated Channel Model for GEO Free Space Optics Downlinks
2012
Predicting depression from illness severity in cardiovascular disease patients: self-efficacy beliefs, illness perception, and perceived social suppo…
2014
Background: Many studies have investigated the relationships between cardiovascular diseases and patients' depression; nevertheless, few is still known as regard the impact of illness severity on depression and whether psychosocial variables mediate this association. Purpose: The aim of this study is to investigate the putative mediating role of illness representations, self-efficacy beliefs, and perceived social support on the relationship between illness severity and depression. Methods: A total of 75 consecutive patients with cardiovascular disease (80 % men; mean age=65.44, SD=10.20) were enrolled in an Italian hospital. Illness severity was measured in terms of left ventricular ejectio…
Self-Perceived Health, Objective Health, and Quality of Life among People Aged 50 and Over: Interrelationship among Health Indicators in Italy, Spain…
2020
It is well known that self-perceived health (SPH), even if it is a subjective health indicator, is significantly associated with objective health and quality of life (QoL) in the general population. Whether it can be considered an indicator of cognitive functioning and quality of life in the elderly is still an open issue. This study used a data-driven approach to investigate the interrelationship among SPH, non-communicable diseases (NCDs), QoL, and cognitive functioning to answer this question. The study sample included information about 12,831 people living in Italy, Spain, and Greece, extracted from the Survey on Health, Aging, and Retirement in Europe, in the year 2015. The additive Ba…
Fenomenologia teorica e sperimentale e scienza della visione
2015
In this theoretical paper, the claim is defended that phenomenology of perception can be integrated into vision science. Different versions of theoretical and experimental phenomenology are presented to specify a minimal set of commitments. It is claimed that the phenomenological research into perception, be it delivered in the form of conceptual analysis or of experimental research, satisfies the epistemological and methodological substantive features of these commitments. As an empirical case for the contribution that the integration of phenomenology into vision science could bring about, the paper presents a received view in the visual neurosciences and the objections against its element…
Acculturation profiles, psychosocial adaptation and perceived discrimination among Tunisian adolescents
2014
The study refers to data coming from the Italian section of MIRIPS project. It was focused on the analysis of the adaptation of Tunisian adolescents living in Italy and it was guided by the integration hypothesis, stating that migrants feel better if they are engaged in both their own culture and that of the larger society than if they engage in one or the other culture only. Using a person-oriented approach, the study investigated the relationships between acculturation profiles - namely patterns of relations between factors associated to the acculturation process (e.g., acculturation strategies, ethnic and national identities, ethnic and national language use, social contacts with people …
Psychological variables characterizing different types of adolescent gamblers: A discriminant function analysis
2013
Objective: The study examined the effects of attachment attitudes, social support, and psychological and behavioral problems on pathological gambling among adolescents. Method: A total of 268 male adolescents, from 15 to 17 years of age (M = 16.23, SD = .39) completed self-report measures on gambling behaviors, attachment styles, social support, and internalizing and externalizing problems. Results and Conclusions. At-risk and pathological gamblers reported lower level of social support and higher level of fearful attachment and internalizing problems than non problematic-gamblers. Results from a discriminant function analysis, in which two discriminant functions emerged, were consistent wi…