Strengthening Safety Compliance in Nuclear Power Operations: A Role‐Based Approach

Safety compliance is of paramount importance in guaranteeing the safe running of nuclear power plants. However, it depends mostly on procedures that do not always involve the safest outcomes. This article introduces an empirical model based on the organizational role theory to analyze the influence of legitimate sources of expectations (procedures formalization and leadership) on workers’ compliance behaviors. The sample was composed of 495 employees from two Spanish nuclear power plants. Structural equation analysis showed that, in spite of some problematic effects of proceduralization (such as role conflict and role ambiguity), procedure formalization along with an empowering leadership style lead to safety compliance by clarifying a worker's role in safety. Implications of these findings for safety research are outlined, as well as their practical implications.     

Birds of a neotropical green city: an up-to-date review of the avifauna of the city of Xalapa with additional unpublished records

Although urbanization poses severe threats to biodiversity, some wildlife groups manage to thrive within urban areas. Among wildlife, birds are a highly diverse, charismatic and well-known group, establishing complex communities in human settlements around the world, making them suitable bioindicators. However, it is often difficult to have historical species lists that allow understanding current urban ecology trends. In this paper, we compile the available bird records, including unpublished information, for one of the best studied and well vegetated urban areas in México: the city of Xalapa. We gathered records for 329 species, representing ~30 % of the national avifauna in this medium-sized neotropical city. This important avian diversity in the city of Xalapa is mostly due to its environmental heterogeneity, underlining the relevance of its location, and the nature of its surroundings. The information provided in this paper will not only provide an environmental education baseline and represent a starting point for ornithologists, but will represent a reference document on the birds that have been recorded within the limits of Xalapa in the last three decades.     

Uma Vida Melhor?: Portuguese Migrant Workers in a Rural Community

As migrants have traditionally settled in the larger towns and cities, research into economic integration has in the past focused on urban centres. Evidence from recent migration flows is that migrant settlement is far more dispersed both nationally and regionally, requiring a shift in focus to small town and rural communities (STRCs). Studies exist on the Portuguese migrant presence in urban areas across Europe but little research has been carried out into their integration into and impact on STRCs. It will be argued that the Portuguese represent an interesting case study because they are a diverse, multinational group that had become an established community in East Anglia prior to the influx of East Europeans from the post-accession states during the early 2000s. It is argued that tensions exist within as well as between the immigrant nationalities. The focus is on the labour market in East Anglia and recurring issues such as declining job opportunities and growing competition for employment.     

The total bootstrap median: a robust and efficient estimator of location and scale for small samples

We propose the total bootstrap median (TBM) as a robust and efficient estimator of location and scale for small samples. We demonstrate its performance by estimating the mean and variance of a variety of distributions. We also show that, if the underlying distribution is unknown and there is either no contamination or low to moderate contamination, the TBM provides a better estimate of the mean, in mean square terms, than the sample mean or the sample median. In addition, the TBM is a better estimator of the variance of the underlying distribution than the sample variance or the square of the bias-corrected median absolute deviation from the median estimator. We also show that the TBM is an explicit L-estimator, which allows a direct study of its properties.     

Exercise can improve speed of behavior in older drivers

The main aim of this research was to study the effects of a specific exercise program on the speed of behavior of older adults during on-the-road driving. Twenty-six drivers (55-78 yr old) were randomly assigned to either an exercise group or a control group. The exercise program (3 sessions of 60 min/wk for 8 wk) incorporated tasks that induced the participants to respond quickly to challenging situations. On-the-road driving tasks (under single- and dual-task conditions) included measures of simple and choice reaction time, movement time, and response time. Significant positive effects were found at follow-up resulting from participation in the exercise program: Improvements were found for several measures in all driving tasks, and a composite score reflected a better general drivers' speed of behavior. These results show that exercise can enhance speed of behavior in older drivers and should therefore be promoted.     

Elder abuse and neglect in African American families: informing practice based on ecological and cultural frameworks

Despite the rapid growth of the elderly African American population in the U.S., elder abuse and neglect in African American families continue to be underdeveloped areas of study. This article presents an ecological and culturally informed framework for the study of elder abuse in African American populations. The model was developed based on Bronfenbrenner's Human Ecological Theory. The model identifies risk factors associated with different systems that have an influence on the lives of African American families. Cultural protective factors also are identified in the model. The model is intended to provide an understanding of elder abuse and neglect in African American families by considering the influence of contextual factors such as the legacy of slavery, social exclusion, and structural segregation and racism. Specific suggestions for practice are proposed according to cultural strengths of African American communities as well as the ecological premises of the model.     

Social antecedents of the role stress and career-enhancing strategies of newcomers to organizations: A longitudinal study

Newcomers experience uncertainty and stress following entry into an organization. Two features of socialization are important for reducing their stress: socialization tactics and relations with superiors and co-workers. The present study tests a structural equation model, including, first, the effects over time of initial institutional socialization tactics and, second, the association between social relations at the workplace on newcomers’ role stress and career-enhancing strategies, two years later, among a large (N=661) international sample of job and organization stayers. Using LISREL 8.3 the results indicate a good fit between the model and data on several fit indices. Institutional socialization tactics had a significant association with newcomers’ relations with both their superiors and co-workers, and a significant negative association with their role conflict. Newcomers’ relations with superiors had a negative relationship with their role ambiguity, and a positive relationship with two kinds of career-enhancing strategies that they use to aid in their adaptation to their work situation. The relations of newcomers with co-workers were positively related to role conflict and negatively related to role ambiguity. Co-worker relations were also positively related to immediate career-enhancing strategies. Role conflict was positively related to immediate and negatively related to intermediate career-enhancing strategies, while role ambiguity was negatively related to intermediate career-enhancing strategies. The results are discussed in relation to their theoretical and practical importance.     

Physical Activity, Depression and Anxiety Among the Elderly

The aim of this study was to compare by sex, physical activity, and academic qualifications the symptomatology of depression among elders. The sample consisted of 140 elderly, 70 elements were male and 70 female, aged over 62 years. The instruments used to assess the dependent variables were the Scale of Moderate to Vigorous Physical Activity, the Beck Depressive Inventory and the State-Trait Anxiety Inventory. Significant gender effects were obtained demonstrating that those who practiced physical activity had lower rates of depression and anxiety. Comparisons showed that women had higher values than men. At the level of educational attainment it was found that individuals with lower level of education tended to have higher values for both depression and anxiety. Finally, a significant correlation was identified between physical activity, depression and anxiety, and for trait anxiety, however this correlation was not statistically significant. It was concluded that physical activity is associated with lower levels of depression and anxiety.