9,878 research outputs found

    Cross-validation of the reduced form of the food craving questionnaire -trait using confirmatory factor analysis

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    Objective: The Food Craving Questionnaire-Trait (FCQ-T) is commonly used to assess habitual food cravings among individuals. Previous studies have shown that a brief version of this instrument (FCQ-T-r) has good reliability and validity. This article is the first to use Confirmatory factor analysis to examine the psychometric properties of the FCQ-T-r in a cross-validation study. Method: Habitual food cravings, as well as emotion regulation strategies, affective states, and disordered eating behaviors, were investigated in two independent samples of non-clinical adult volunteers (Sample 1: N = 368; Sample 2: N = 246). Confirmatory factor analyses were conducted to simultaneously test model fit statistics and dimensionality of the instrument. FCQ-T-r reliability was assessed by computing the composite reliability coefficient. Results: Analysis supported the unidimensional structure of the scale and fit indices were acceptable for both samples. The FCQ-T-r showed excellent reliability and moderate to high correlations with negative affect and disordered eating. Conclusion: Our results indicate that the FCQ-T-r scores can be reliably used to assess habitual cravings in an Italian non-clinical sample of adults. The robustness of these results is tested by a cross-validation of the model using two independent samples. Further research is required to expand on these findings, particularly in children and adolescents

    Are women more susceptible than men to iatrogenic inferior alveolar nerve injury in dental implant surgery?

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    An over-representation of women in dental implant-related inferior alveolar nerve injuries (IANIs) is recognized in the literature but has not been investigated. Therefore, a nationwide retrospective register study was conducted to analyse how IANIs compare with other implant-related complications (infection, implant malposition, lack of bone at implant site, mechanical damage, or failed osseointegration) separately in women and men. Financially compensated malpractice claims related to dental implant surgery were collected from the Finnish Patient Insurance Centre for the years 1997-2013, while the total number of nationally placed implants was ascertained from the implant register held by the Finnish Institute for Health and Welfare. In the 242 complications, the following were analysed: age of subject, absolute risk for complication, and aetiological factor of IANI. Statistical tests applied include Mann-Whitney U-test, Chi-squared test, and Fisher's exact test. Women sustaining IANI were more likely older than those having infection, mechanical damage, or failed osseointegration (P < 0.05), while no significant differences emerged in men. Women were more likely at risk for IANI (P < 0.01) or implant malposition (P < 0.05) than men. The results support earlier propositions that women are more vulnerable than men to iatrogenic IANI.Peer reviewe

    Communication, Credible Improvements and the Core of an Economy with Asymmetric Information

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    We analyze an economy with asymmetric information and endogenize the possibilities for information transmission between members of a coalition. We then define a concept of the Core that takes into account these communication possibilities. The internal consistency of the improvements is considered and an Internally Consistent Core, which requires credibility from the improvements is introduced.Asymmetric Information; Core; Common Knowledge.

    Ghirlanda-Guerra identities and ultrametricity: An elementary proof in the discrete case

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    In this paper we give another proof of the fact that a random overlap array, which satisfies the Ghirlanda-Guerra identities and whose elements take values in a finite set, is ultrametric with probability one. The new proof bypasses random change of density invariance principles for directing measures of such arrays and, in addition to the Dobvysh-Sudakov representation, is based only on elementary algebraic consequences of the Ghirlanda-Guerra identities

    Citizenship and Belonging: The Case of the Italian Vote Abroad

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    The ease in which people are able to travel and communicate with one another across national boundaries is challenging the way in which we identify ourselves and define our place in the world. In an increasingly globalized world the very concept of a national identity is itself being redefined as multiple identities and dual citizenships have become more common than ever. This process of global interconnectedness has progressed so rapidly in the past few years that many are beginning to question how we define national models. The European Union, NAFTA, MERCOSUR, multi-national corporate affiliations, and virtual communities over the internet are all fast creating new collective forms of identity filling a role traditionally associated with the nation-state. These new realities test the limits of traditional citizenship models and challenge us to rethink national identities that transcend borders

    Application of the ex-Gaussian function to the effect of the word blindness suggestion on Stroop task performance suggests no word blindness

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    The aim of the present paper was to apply the ex-Gaussian function to data reported by Parris et al. (2012) given its utility in studies involving the Stroop task. Parris et al. showed an effect of the word blindness suggestion when Response-Stimulus Interval (RSI) was 500 ms but not when it was 3500 ms. Analysis revealed that: (1) The effect of the suggestion on interference is observed in μ, supporting converging evidence indicating the suggestion operates over response competition mechanisms; and, (2) Contrary to Parris et al. an effect of the suggestion was observed in μ when RSI was 3500 ms. The reanalysis of the data from Parris et al. (2012) supports the utility of ex-Gaussian analysis in revealing effects that might otherwise be thought of as absent. We suggest that word reading itself is not suppressed by the suggestion but instead that response conflict is dealt with more effectively. © 2013 Parris, Dienes and Hodgson

    On Some Geometric Properties of Slice Regular Functions of a Quaternion Variable

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    The goal of this paper is to introduce and study some geometric properties of slice regular functions of quaternion variable like univalence, subordination, starlikeness, convexity and spirallikeness in the unit ball. We prove a number of results, among which an Area-type Theorem, Rogosinski inequality, and a Bieberbach-de Branges Theorem for a subclass of slice regular functions. We also discuss some geometric and algebraic interpretations of our results in terms of maps from R4\mathbb R^4 to itself. As a tool for subordination we define a suitable notion of composition of slice regular functions which is of independent interest

    Time-Consistent and Market-Consistent Evaluations

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    We consider evaluation methods for payoffs with an inherent financial risk as encountered for instance for portfolios held by pension funds and insurance companies. Pricing such payoffs in a way consistent to market prices typically involves combining actuarial techniques with methods from mathematical finance. We propose to extend standard actuarial principles by a new market-consistent evaluation procedure which we call `two step market evaluation.' This procedure preserves the structure of standard evaluation techniques and has many other appealing properties. We give a complete axiomatic characterization for two step market evaluations. We show further that in a dynamic setting with a continuous stock prices process every evaluation which is time-consistent and market-consistent is a two step market evaluation. We also give characterization results and examples in terms of g-expectations in a Brownian-Poisson setting

    El teatro musical de Arena y Opinião: popular, histórico y auténticamente brasileño

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    In the 1960s, a handful of Brazilian plays, presented as musicals, re-examined national historical figures. In these plays, the lines articulated by the actors carry as much weight as the musical notes and rhythms performed by the musicians. In Arena Conta Zumbi (1965), Arena Conta Tiradentes (1967), and Dr. Getúlio, Sua Vida e Sua Glória (1968), theatre troupes perform the life and historical times of prominent national heroes. The protagonists are characters whose lives are well known by all: King Zumbi of Palmares, Joaquim José da Silva Xavier, also known as Tiradentes, and former president Getúlio Vargas. The directors —Augusto Boal, Gianfrancesco Guarnieri, Alfredo Dias Gomes, and Antônio Ferreira Gullar— do not detract from the protagonists’ historical importance, but they do strip away superfluous details and information that have made these mythical figures appear saintly and virtuous and not the human beings that they were. Music creates a distance that allows the audience to better understand the implications of their actions and contributions to the national stage. These plays criticized the Brazilian military dictatorship of the time and had considerable influence on the Brazilian theatre of the future