2 resultados para cardiac signals, EEG signals, analysis, higher order spectra
em Repositório Científico da Universidade de Évora - Portugal
Resumo:
Structured abstract Purpose: To deepen, in grocery retail context, the roles of consumer perceived value and consumer satisfaction, as antecedents’ dimensions of customer loyalty intentions. Design/Methodology/approach: Also employing a short version (12-items) of the original 19-item PERVAL scale of Sweeney & Soutar (2001), a structural equation modeling approach was applied to investigate statistical properties of the indirect influence on loyalty of a reflective second order customer perceived value model. The performance of three alternative estimation methods was compared through bootstrapping techniques. Findings: Results provided i) support for the use of the short form of the PERVAL scale in measuring consumer perceived value; ii) the influence of the four highly correlated independent latent predictors on satisfaction was well summarized by a higher-order reflective specification of consumer perceived value; iii) emotional and functional dimensions were determinants for the relationship with the retailer; iv) parameter’s bias with the three methods of estimation was only significant for bootstrap small sample sizes. Research limitations:/implications: Future research is needed to explore the use of the short form of the PERVAL scale in more homogeneous groups of consumers. Originality/value: Firstly, to indirectly explain customer loyalty mediated by customer satisfaction it was adopted a recent short form of PERVAL scale and a second order reflective conceptualization of value. Secondly, three alternative estimation methods were used and compared through bootstrapping and simulation procedures.
Resumo:
The aim of the present study is to examine a group of clay tablets by thin-section petrography and thermogravimetric analysis in order to assess specific problems related to their provenance and manufacture technology. Two sets of documents dating to the fourteenth-thirteenth centuries BC will be considered separately throughout the thesis, with different research questions in mind for each case study. The petrographic data will be compared when possible with the chemical composition of the tablets, determined by pXRF and/or INAA in previous studies. On the whole, this dissertation is an attempt to combine textual, archaeological, petrographic, chemical and thermogravimetric information in order to get a better understanding of the materiality and the historical implications of the objects under examination; Resumo: O objetivo do presente estudo é examinar um grupo de tabuletas de argila por petrografia e análise termogravimétrica, a fim de avaliar problemas específicos relacionados com a sua proveniência e tecnologia de fabricação. Dois conjuntos de documentos que datam dos séculos XIV-XIII a.C. serão considerados separadamente ao longo da tese, com diferentes questões de pesquisa em mente para cada estudo de caso. Os dados petrográficos serão comparados quando possível com a composição química das tabuletas, determinada por pXRF e/ou INAA em estudos anteriores. No seu conjunto, esta dissertação é uma tentativa de combinar informação textual, arqueológica, petrográfica, química e termogravimétrica a fim de obter uma melhor compreensão da composição material e das implicações históricas dos objetos em análise.