Effects of variations in water quantity and quality in the structure and functions of invertebrates’ community of a Mediterranean urban stream

Urban Ecosystems - Urban streams provide important ecosystem services to cities’ population, from the maintenance of urban biodiversity, temperature, humidity and air quality to improving...     

Ergonomic work analysis of airbus pilots job in Brazil

This article is the result of a case study of ergonomic work analysis carried out in a Brazilian airline company, focused on the safety of the activity of Airbus pilots from the company's national lines. The study was divided in three parts, each one with different approach. First step is how critical situations such as accidents and incidents are dealt with during flight. Then it comes to discuss about adversities found in the working place, the airbus cockpit, and the development of risk map. Last but not least, the study focused in how the irregular working journey compromises the biological clock of the pilots end may cause social issues.     

From “dot.org” to “dot.gov”: Professional Crossings in the Brazilian National Policy on HIV/AIDS

This article reflects on the importance of the relations between state and society in policy-making in the area of public health. Several studies in various sectors such as health, education, and social services have made similar observations on organizational dynamics and the institutionalization of different models of partnerships or contracts, often based on the analytical model of three sectors. Individuals and their networks of relationships, however, remain an almost unexplored dimension in these types of research. Against this backdrop, this study seeks to analyze the movement of HIV/AIDS activists to governmental organizations working in this same field. The analysis raises questions concerning the forms of individual and institutional learning that help to maintain the distinct character of innovation of the Brazilian policy. Professionals who cross the borders hold a different profile once they have accumulated experience working with grassroots and local NGOs, and have also had the chance to be trained and enhance their technical and managerial capacities, since the government has supported NGOs for a long period. When combined, these experiences allow them to maintain relationships with social movements and give them the ability to navigate through the government bureaucracy and handle technical information about fighting AIDS epidemics, making it possible for them to negotiate strategic collaborations reflecting the interests of different groups. Hence, they constantly reflect on the differences between government and social spaces, and keep questioning and modifying their roles in the light of potential and existing complementarities.     

Structuring composite local governance indicators

The importance of good governance is praised by many academics and practitioners. The prominence of the subject suggests that measurement is important. However, setting out to measure the quality of governance empirically is controversial. Doubts regarding the feasibility and meaningfulness of this undertaking are widespread in the literature. Recognizing the potential caveats, the current article discusses a set of guidelines for structuring a theoretically sound local governance assessment tool based on the Decision Analysis and Operational Research literatures. The authors argue that using a multi-criteria model which employs several objective (quantitative and qualitative) indicators and relies on a participatory method to aggregate them is a suitable way of developing sensible Local Governance Indicators. The purpose here is to provide a detailed roadmap for any country (or region, or locality) willing to engage in the assessment of the quality of local governance. The real-world implementation of a model developed according to these guidelines could help raise awareness, promote good practices and increase the ‘governance literacy’ of citizens. By operationalizing good governance, analysts may also be able to further investigate the relationships between local governance practices and several socio-economic factors.     

Displaying Gender: Transgender People's Strategies in Everyday Life

Drawing upon data from in‐depth interviews with transgender people in Portugal and in the United Kingdom, this article critically reflects upon different ways through which transgender people recreate their gender displays, particularly in terms of gender embodiment and aesthetics, in order to navigate their everyday lives. I focus on four strategies of articulating gender displays with one's own gender subjectivities: “blending in,” “masking,” “naturalizing,” and “subverting.” These strategies are not exclusive of one another. They are used differently throughout the participants' own lives in accordance to the social contexts they were in.     

The Structured Interview of Family Assessment Risk: Convergent Validity,Inter-rater Reliability and Structural Relations

The quality of parenting, composition and socio-economic status are family risk or protective factors on juvenile delinquency, however, there is not an instrument to help psychologists and social workers to specifically assess the adolescent offender’s family. This study set out to accomplish an additional validation study of the structured interview of family assessment risk (SIFAR), a structured professional judgment tool for the assessment of family risk and protective factors of juvenile delinquents. The statistical analyses included inter-rater reliability, convergent validity with YLS/CMI, the Partial Least Squares approach to structural equation modeling and receiving operator characteristics (ROC) analysis. A sample of 130 male adolescent delinquents detained in Portuguese forensic facilities and their parents, were paired analyzed. The YLS/CMI was used to analyze the convergent validity with SIFAR. SIFAR shows a strong correlation with the YLS/CMI family context, moderate to high values of inter-rater reliability; SIFAR factors show that they are predictive determinants of the Moderate Four risk factors. ROC analysis shows adequate accuracy power. The findings show that SIFAR it is useful as an additional assessment tool for structured risk assessment instruments since it allows understanding the vulnerabilities and strengths of the delinquent’s family.     

The Determinants of Lottery Sales in Portugal

In sum, this paper examines the core determinants of lottery sales in Portugal. With panel data analysis covering 18 Portuguese districts and 5 years, this study explains the variations in a district’s per-capita lottery sales in terms of key theoretical hypotheses such as per capita district income, age, education index, gender and religion. This paper concludes that the richer Portuguese districts spend more than the poorer districts and there is an inverted-U relationship between lottery sales and per capita income. The paper also concludes that married Catholic citizens spend more on lottery products than others and that the level of education returns a negative effect on lottery spending.     

The Gamma-count distribution in the analysis of experimental underdispersed data

Event counts are response variables with non-negative integer values representing the number of times that an event occurs within a fixed domain such as a time interval, a geographical area or a cell of a contingency table. Analysis of counts by Gaussian regression models ignores the discreteness, asymmetry and heteroscedasticity and is inefficient, providing unrealistic standard errors or possibly negative predictions of the expected number of events. The Poisson regression is the standard model for count data with underlying assumptions on the generating process which may be implausible in many applications. Statisticians have long recognized the limitation of imposing equidispersion under the Poisson regression model. A typical situation is when the conditional variance exceeds the conditional mean, in which case models allowing for overdispersion are routinely used. Less reported is the case of underdispersion with fewer modeling alternatives and assessments available in the literature. One of such alternatives, the Gamma-count model, is adopted here in the analysis of an agronomic experiment designed to investigate the effect of levels of defoliation on different phenological states upon the number of cotton bolls. Data set and code for analysis are available as online supplements. Results show improvements over the Poisson model and the semi-parametric quasi-Poisson model in capturing the observed variability in the data. Estimating rather than assuming the underlying variance process leads to important insights into the process.