Pathways to Retirement and Mortality Risk in The Netherlands

The success of policies aimed at keeping older workers in employment until the statutory retirement age in part depends on the health of these workers. For this reason we examine to what extent pathways to statutory retirement other than employment are associated with adverse health conditions as measured by increased mortality risk during retirement. To do so, we estimate a mortality risk model using Dutch administrative data. We find, conditional on labor market status at the age of 58 and compared to individuals who are employed until the statutory retirement age of 65, no increased mortality risk among individuals who, between the ages of 58 and 65, have been in early retirement or unemployment and an increased mortality risk among individuals who have drawn disability insurance benefits. Our results suggest that older workers other than those who qualify for disability insurance benefits, may, on average, have no significant health conditions that could adversely impact the effectiveness of reforms that create stronger financial incentives for continued employment until age 65.     

The Mother and the Process of Truth

Beginning with associations on its own origins, this essay reflects on the precocity of “proto-gay” children, those born in the shadow of Stonewall, whose sexuality already imagined a different future. It postulates that there are multiple points of origin for reconstructing what we conventionally call the preoedipal “past.”     

Variability and Uncertainty Analysis of the Cross‐Contamination Ratios of Salmonella During Pork Cutting

The transfer ratio of bacteria from one surface to another is often estimated from laboratory experiments and quantified by dividing the expected number of bacteria on the recipient surface by the expected number of bacteria on the donor surface. Yet, the expected number of bacteria on each surface is uncertain due to the limited number of colonies that are counted and/or samples that can be analyzed. The expected transfer ratio is, therefore, also uncertain and its estimate may exceed 1 if real transfer is close to 100%. In addition, the transferred fractions vary over experiments but it is unclear, using this approach, how to combine uncertainty and variability into one estimate for the transfer ratio. A Bayesian network model was proposed that allows the combination of uncertainty within one experiment and variability over multiple experiments and prevents inappropriate values for the transfer ratio. Model functionality was shown using data from a laboratory experiment in which the transfer of Salmonella was determined from contaminated pork meat to a butcher's knife, and vice versa. Recovery efficiency of bacteria from both surfaces was also determined and accounted for in the analysis. Transfer ratio probability distributions showed a large variability, with a mean value of 0.19 for the transfer of Salmonella from pork meat to the knife and 0.58 for the transfer of Salmonella from the knife to pork meat. The proposed Bayesian model can be used for analyzing data from similar study designs in which uncertainty should be combined with variability.     

Historical Relationship Between Performance Assessment for Radioactive Waste Disposal and Other Types of Risk Assessment

This article describes the evolution of the process for assessing the hazards of a geologic disposal system for radioactive waste and, similarly, nuclear power reactors, and the relationship of this process with other assessments of risk, particularly assessments of hazards from manufactured carcinogenic chemicals during use and disposal. This perspective reviews the common history of scientific concepts for risk assessment developed until the 1950s. Computational tools and techniques developed in the late 1950s and early 1960s to analyze the reliability of nuclear weapon delivery systems were adopted in the early 1970s for probabilistic risk assessment of nuclear power reactors, a technology for which behavior was unknown. In turn, these analyses became an important foundation for performance assessment of nuclear waste disposal in the late 1970s. The evaluation of risk to human health and the environment from chemical hazards is built on methods for assessing the dose response of radionuclides in the 1950s. Despite a shared background, however, societal events, often in the form of legislation, have affected the development path for risk assessment for human health, producing dissimilarities between these risk assessments and those for nuclear facilities. An important difference is the regulator's interest in accounting for uncertainty.     

Effective Practices in the Delivery of Research Ethics Education: A Qualitative Review of Instructional Methods

In order to delineate best practices for courses on research ethics, the goal of the present effort was to identify themes related to instructional methods reflected in effective research ethics and responsible conduct of research (RCR) courses. By utilizing a qualitative review, four themes relevant to instructional methods were identified in effective research ethics courses: active participation, case-based activities, a combination of individual and group approaches, and a small number of instructional methods. Three instructional method themes associated with less effective courses were also identified: passive learning, a group-based approach, and a large number of instructional methods. Key characteristics of each theme, along with example courses relative to each theme, are described. Additionally, implications regarding these instructional method themes and recommendations for best practices in research ethics courses are discussed.     

Reducing disablement with adequate and appropriate resources: a New Zealand perspective

This article presents the qualitative findings from a larger mixed methods study of the barriers and costs associated with disability in New Zealand. A social model of disability framework was integrated with an economic cost model using consensual budget standards to (1) identify key barriers disabled people experience in their everyday living and (2) develop consensus about the resources disabled people agree they require to reduce or remove them. Forty-nine people with physical, hearing, vision or intellectual impairment participated in a series of 8 impairment-based focus groups. The analysis identified inaccessible environments, negative attitudes, unreliable transportation and poor access to information as key barriers. However, lack of adequate and appropriate resources (e.g. equipment, modifications, support, transport and time) to address these barriers was the overarching obstacle to participation. The inclusion of time as both a barrier and a valuable resource is arguably the most important contribution of the study.     

Sociology in the high school: Perceptions of those who teach it

The following research note reports two major findings of a more detailed study of the opinions, training, and practices of teachers of high school sociology in Texas. Two major findings of interest to the discipline emerge from the research: (1) high school teachers are only marginally prepared in the field of sociology itself; (2) teachers generally give sociology's reputation as a discipline a favorable rating, while at the same time showing concerns about whether or not they would recommend sociology as a college major. The implications of teacher attitudes and training for the discipline are explored.     

Region of Birth and Disability Among Recent U.S. Immigrants: Evidence from the 2000 Census

This study aimed to test the “healthy immigrant” hypothesis and assess health heterogeneity among newly arrived working-age immigrants (18–64 years) from various regions of origin. Using the 5% sample of the 2000 U.S. Census (PUMS), we found that, compared with their native-born counterparts, immigrants from all regions of the world were less likely to report mental disability and physical disability. Immigrants from selected regions of origin were, however, more likely to report work disability. Significant heterogeneity in disabilities exists among immigrants: Those from Eastern Europe and Southeast Asia reported the highest risk of mental and physical disability, and those from East Asia reported the lowest risk of physical disability. Furthermore, Mexican immigrants reported the lowest risk of mental disability, and Canadian immigrants reported the lowest risk of work disability. Socioeconomic status and English proficiency partially explained these differences. The health advantage of immigrants decreased with longer U.S. residence.     

Focusing on Disability and Access in the Built Environment

This paper provides a documentation and discussion of the diverse experiences that different disabled people have with regards to access in the built environment. It begins by outlining the various ways in which disabled people's access needs and requirements are articulated in public policies and practices towards the development and regulation of the built environment. As the material indicates, disabled people's needs are poorly articulated and/or represented in the design and development of the built environment while the regulatory controls which oversee disabled people's access are weak. In the second part of the paper, disabled people's values, attitudes and practices towards access in the built environment are discussed by referring to the findings of focus group research. The material shows that many disabled people feel estranged and oppressed by facets of the built environment and generally feel powerless to do anything about it. We conclude by suggesting a number of ways of interconnecting the design and implementation of public policy towards the built environment with the daily lived experiences of disabled people.