Applicability of a Neuroprobabilistic Integral Risk Index for the Environmental Management of Polluted Areas: A Case Study

Recently, we developed a GIS-Integrated Integral Risk Index (IRI) to assess human health risks in areas with presence of environmental pollutants. Contaminants were previously ranked by applying a self-organizing map (SOM) to their characteristics of persistence, bioaccumulation, and toxicity in order to obtain the Hazard Index (HI). In the present study, the original IRI was substantially improved by allowing the entrance of probabilistic data. A neuroprobabilistic HI was developed by combining SOM and Monte Carlo analysis. In general terms, the deterministic and probabilistic HIs followed a similar pattern: polychlorinated biphenyls (PCBs) and light polycyclic aromatic hydrocarbons (PAHs) were the pollutants showing the highest and lowest values of HI, respectively. However, the bioaccumulation value of heavy metals notably increased after considering a probability density function to explain the bioaccumulation factor. To check its applicability, a case study was investigated. The probabilistic integral risk was calculated in the chemical/petrochemical industrial area of Tarragona (Catalonia, Spain), where an environmental program has been carried out since 2002. The risk change between 2002 and 2005 was evaluated on the basis of probabilistic data of the levels of various pollutants in soils. The results indicated that the risk of the chemicals under study did not follow a homogeneous tendency. However, the current levels of pollution do not mean a relevant source of health risks for the local population. Moreover, the neuroprobabilistic HI seems to be an adequate tool to be taken into account in risk assessment processes.     

Religion as a Meaning System: Policy Implications for the New Millennium

The development of social policy related to religion has received increasing focus in recent years, yet psychology continues to play a relatively minor role in this important domain. In the current article, religion's positive and negative influences as a meaning system on individual, community, and societal well-being are delineated. The challenges facing psychology in contributing to public policy development in the religious arena are examined, challenges that stem from profound differences in the meaning systems of religion, government, and psychology. These challenges notwithstanding, a number of different pathways in the domains of applied research, community practice, and policy development are delineated through which psychology can help to maximize positive, and minimize negative, outcomes in the religion and social policy arena.     

Living with zombie companies: Do we know where the threat lies?

This paper shows the existence of extreme types of zombie firm, i.e. companies with negative equity that continue to do business despite having lost their entire equity. We explain how these firms are measured and how the riskier ones are defined with different determinants. Using a Spanish sample from 2010 to 2014 an index called the EZIndex is developed that includes four dimensions of the extreme zombie problem: extension, contagion, recovery signs and immediacy. The paper contributes to zombie theory on the one hand by developing a method for ranking zombie firms based on risks and changes over time, and on the other hand by using a log-linear model to detect the riskiest corporate profiles out of all these risky firms. It demonstrates significant implications that need to be considered by the competent authorities not only in terms of their impact as a whole but also in regard to the particular profile of extreme zombie firms: they are less regulated, large and located in regions with large business fabrics.     

Challenges and opportunities to eLearning in social work education: perspectives from Spain and the United States

ABSTRACT

eLearning has become an academic tool used to provide access to education for multiple segments of the population, which otherwise would have little to no access to it. While other academic disciplines integrated it into their curricula early in the digital revolution, in many countries, social work education is just beginning to address the opportunities and challenges web-based learning may bring to these programmes [Blackmon, 2013. Social work and online education with all deliberate speed. Journal of Evidence-Based Social Work, 10(5), 509–521. doi:10.1080/15433714.2012.663672; Phelan, 2015. The use of eLearning in social work education. Social Work, 60(3), 257–264. doi:10.1093/sw/swv010]. This international collaborative research study seeks to better understand the challenges and opportunities faced by social work educators teaching at universities who are already using some form of eLearning in the United States and in Spain. A quantitative, non-experimental research design was employed. Results show that there are similarities as well as differences in the ways the two subsamples perceive the challenges and opportunities of eLearning. Findings reveal that there are some significant differences between the way the two subsample respondents perceived challenges and opportunities to eLearning. Recommendations for online social work educators and administrators are provided regarding overcoming challenges and capitalizing on opportunities applicable to the US, Spain, and the larger European and global contexts. Recommendations for further research and practice are also included.     

Body Image Disturbances and Predictors of Body Dissatisfaction Among Hispanic and White Preadolescents

This study assessed ethnic and gender differences in ideal body size, body dissatisfaction (BD), and the relationship between BD and various predictors (e.g., body composition indicators and cardiorespiratory fitness). The sample consisted of 190 White and Hispanic preadolescents aged 10–13 years. Demographic, percent body fat (%BF), body mass index (BMI), body image variables, and cardiorespiratory fitness (CRF) were examined. A significant Gender × Ethnicity interaction was found for ideal body size (p < .05), with Hispanic girls preferring the thinnest figures and Hispanic boys the largest figures, compared to their counterparts. No significant gender or ethnic differences in BD were observed. After controlling for demographic and cultural variables, increased %BF and BMI scores predicted greater BD, whereas CRF did not.     

Divergence-based tests of homogeneity for spatial data

The problem of testing homogeneity in contingency tables when the data are spatially correlated is considered. We derive statistics defined as divergences between unrestricted and restricted estimated joint cell probabilities and we show that they are asymptotically distributed as linear combinations of chi-square random variables under the null hypothesis of homogeneity. Monte Carlo simulation experiments are carried out to investigate the behavior of the new divergence test statistics and to make comparisons with the statistics that do not take into account the spatial correlation. We show that some of the introduced divergence test statistics have a significantly better behavior than the classical chi-square test for the problem under consideration when we compare them on the basis of the simulated sizes and powers.     

Rényi statistics for testing equality of autocorrelation coefficients

The problem of testing for equality of autocorrelation coefficients of two populations in multivariate data when errors are autocorrelated is considered. We derive Rényi statistics defined as divergences between unrestricted and restricted estimated joint probability density functions and we show that they are asymptotically chi-square distributed under the null hypothesis of interest. Monte Carlo simulation experiments are carried out to investigate the behavior of Rényi statistics and to make comparisons with test statistics based on the approach of Bhandary [M. Bhandary, Test for equality of autocorrelation coefficients for two populations in multivariate data when the errors are autocorrelated, Statistics & Probability Letters 73 (2005) 333–342] for the problem under consideration. Rényi statistics showed to have significantly better behavior.     

Developing Public Relations 2.0: Practitioners’ perceptions on the implementation of interactive communication strategies

This study employs a qualitative Delphi panel to explore the perceptions of interactive agency executives on the adoption of online interactivity within the communication practices of companies of all trades in one of the biggest European media markets (Spain). The results highlight the serious challenges these practices pose to organizations and identify internal and external factors that affect the decision-making process. The study argues that actors’ definitions of interactivity are crucial in shaping Public Relations 2.0.     

Can complementary pension plans help improve retirement income in the Dominican Republic?

In the 1990s, following the earlier example of Chile, pension system reforms were implemented in a number of Latin American and other countries. These reforms focused on introducing models of pension provision that were fully‐funded and privately managed. Although aspects of these reforms have been positive, for many persons covered by these systems retirement income is not adequate. The development of occupational pension plans may offer an alternative, complementary mechanism to help improve pension adequacy. This article discusses different complementary pension plan models and examines the case of the Dominican Republic. It argues that complementary occupational pension plans may be a viable policy option for this developing country.