A hierarchical modelling approach for measuring reliability of and agreement between two types of magnetic field dosimeter

Summary.  The paper describes how to use hierarchical models to assess the reliability of and agreement between two or more types of measurement device. The idea is illustrated by fitting a linear model with nested random effects to a set of data that was obtained from the calibration of two samples of extremely low frequency magnetic field meters. The paper focuses on the formulation of a suitable model that accounts for the various aspects of the calibration protocol and the subsequent interpretation of the parameter estimates. The approach is very flexible and can easily be tuned to the various needs arising in the measurement agreement framework. It can be seen as an extension of the common practice of using a one-way random-effects model to retrieve a measure of agreement.     

A “capability view” on migration: some theoretical issues raised by the Southern Euro Zone highly skilled mobility

The Southern Euro Zone countries show significant delays to adapt their social and productive systems to the EU goal of creating knowledge-based societies. A signal can be the increasingly higher level of skilled labor migration from these countries, especially during the actual crisis. Recent literature on skilled migrations often rejects the concept of “brain drain” (BD) arguing that circulation and exchange of people and knowledge is expected in the era of globalization. Using both conceptual analysis and secondary data, the paper attempts to highlight proportions of the intra-EU BD phenomenon and show how they may challenge the assumptions of circular migration models. It discusses that a BD problem likely exists in the Southern Euro Zone and proposes an alternative framework for its analysis. The main hypothesis behind this review is that the phenomenon relies on substantial lack of social opportunities for high-skilled people in the countries of origin as provoked by multiple factors. In this account, the several drivers of migrants' choice will be conceptualized by adopting a “Capability Approach,” and they will be further analyzed according to its foremost hypotheses regarding rational behavior, human welfare, and development. The resulting theoretical view has to be considered as an expansion of the neoclassical economics “standard view” on high-skilled migrations.     

Which Aspects of Elderly Living Conditions are Important to Predict Mortality? The Complex Role of Family Ties at Home and in Institutions

Social Indicators Research - Besides health and socio-economic status, the social relationships maintained during elderly play an important role in shaping the living conditions at older ages. In...     

Levels of uric acid in erectile dysfunction of different aetiology

Erectile dysfunction is a common disease characterized by endothelial dysfunction. The aetiology of ED is often multifactorial but evidence is being accumulated in favor of the proper function of the vascular endothelium that is essential to achieving and maintaining penile erection. Uric acid itself causes endothelial dysfunction via decreased nitric oxide production. This study aims to evaluate the serum uric acid (SUA) levels in 180 ED patients, diagnosed with the International Index of Erectile Function-5 (IIEF-5) and 30 non-ED control. Serum uric acid was analyzed with a commercially available kit using ModularEVO (Roche, Monza, Italy). Within-assay and between-assay variations were 3.0% and 6.0%, respectively. Out of the ED patients, 85 were classified as arteriogenic (A-ED) and 95 as non-arteriogenic (NA-ED) with penile-echo-color-Doppler. Uric acid levels (median and range in mg/dL) in A-ED patients (5.8, 4.3–7.5) were significantly higher (p?p?相似文献   

Attitudes Toward Homosexuality in Adolescence: An Italian Study

This study investigates Italian adolescents’ attitudes toward gay men and lesbians and same-sex marriage, and their beliefs about the origins of homosexuality. The sample consists of 449 subjects (226 males), aged between 14 and 21 years. The principal instruments used are: the Attitudes Toward Lesbians and Gay men (ATLG), the Modern Homonegativity Scale (MHS), and the Attitudes Toward Same-Sex Marriage (ATSM). Results suggest that males show a more negative attitude than females toward homosexuals. Furthermore data reveal that respondents with a lack of personal direct contact with gay people have less positive attitudes toward homosexual people and same-sex marriage. The data in this study suggest that homophobia could be deeply rooted in a traditional value system that refutes gender equality.     

The risk of Telling: A Dyadic Perspective on Romantic Partners’ Responses to Child Sexual Abuse Disclosure and Their Associations with Sexual and Relationship Satisfaction

Among 70 community couples who reported childhood sexual abuse (CSA) and disclosure to their partner, this study examined associations between survivors’ perception of partner responses to their disclosure, and both partners’ sexual and relationship satisfaction. Participants completed self‐report questionnaires online. Results of path analyses within an actor–partner interdependence model indicated that survivors’ perceived partner responses of emotional support to disclosure were associated with their own and their partners’ higher sexual satisfaction. Survivors’ perceived responses of being stigmatized/treated differently by the partner were associated with their own and their partners’ poorer relationship satisfaction. Findings suggest that survivor‐perceived partner responses to the disclosure of CSA can have a positive and a negative impact on the sexual and relationship satisfaction of both partners.     

Female Migration and Native Marital Stability: Insights from Italy

Previous research has noted that divorce rates tend to be higher when there is a surplus of marriageable women in the marriage market. This paper argues that the size and the composition of the female migrant population can affect the marital stability of natives. We tested such hypothesis taking Italy as a case-study because it exemplifies a male-breadwinner society and because it is a relatively new immigration country. We estimated discrete-time event history models predicting marital disruption on data from the nationally representative 2009 Family and Social Subjects survey. Our results illustrated that the increasing presence of first mover migrant women (coming from Central-South America and Eastern Europe) was associated with higher separation risks among natives, especially for couples with lower human capital. By advancing the relevance of foreigners as a potential driver of natives’ family life courses, our findings add to our understanding of partnership dynamics in recent immigration countries.     

The Intermodal Bike: multi-modal integration of cycling mobility through product and process innovations in bicycle design

The paper presents the early results of the UE-FP7 project "The Intermodal Bike". The research aim is to provide a super-compactable, super-lightweight folding bicycle as a realistic solution to graft the cycling mode onto the root of the public or private transportation systems. The folding bikes now on the international market reach weighs between 12-15 kg, with a variable footprint but occupying -when compacted- an average volume of about 100 liters. To encourage the use of this vehicle and to extend it to a larger number of users with different characteristics, the research project has set its goal in increasing as possible compactness and light weight, creating a bicycle with a volume when compacted of 20 liters (reduction factor =5), with a shape of 48 × 36 × 12 cm and a weight of 5 kg. max., ensuring stability and improving vehicle usability and efficiency, during the ride and in the phase of bike folding. To achieve this goal ergonomic and usability tests have been carried out. The tests allowed to find a posture that would ensure efficiency and comfort in the ride to as many users as possible. Parallel tests were made on the vehicle usability in the urban transport system and intermodal. The need for light weight has required special studies on the optimization of the vehicle's architecture and research on super-lightweight materials.