Information and Communication Technologies: Reshaping Voluntary Organizations?

Electronic networking holds the promise of innovation with involuntary organizations as they seek to respond to deep shifts in the social, economic, and political spheres in which they operate. Evidence from our study of U.K. voluntary organizations demonstrates relatively low uptake of the core networking technologies and applications essential to support the reconfiguration of key relationships in and around the organizations. Friends of the Earth and the Samaritans are exceptions to this trend. Case studies of these organizations suggest they are using information and communication technologies to reshape internal relationships and reconfigure relationships externally. The extent to which the organizations are reconfiguring around intelligent campaigning and intelligent client service is tempered by their long‐standing values.     

A bivariate space-time downscaler under space and time misalignment

Ozone and particulate matter PM(2.5) are co-pollutants that have long been associated with increased public health risks. Information on concentration levels for both pollutants come from two sources: monitoring sites and output from complex numerical models that produce concentration surfaces over large spatial regions. In this paper, we offer a fully-model based approach for fusing these two sources of information for the pair of co-pollutants which is computationally feasible over large spatial regions and long periods of time. Due to the association between concentration levels of the two environmental contaminants, it is expected that information regarding one will help to improve prediction of the other. Misalignment is an obvious issue since the monitoring networks for the two contaminants only partly intersect and because the collection rate for PM(2.5) is typically less frequent than that for ozone.Extending previous work in Berrocal et al. (2009), we introduce a bivariate downscaler that provides a flexible class of bivariate space-time assimilation models. We discuss computational issues for model fitting and analyze a dataset for ozone and PM(2.5) for the ozone season during year 2002. We show a modest improvement in predictive performance, not surprising in a setting where we can anticipate only a small gain.     

Hormesis: A Highly Generalizable and Reproducible Phenomenon With Important Implications for Risk Assessment

From a comprehensive search of the literature, the hormesis phenomenon was found to occur over a wide range of chemicals, taxonomic groups, and endpoints. By use of computer searches and extensive cross-referencing, nearly 3000 potentially relevant articles were identified. Evidence of chemical and radiation hormesis was judged to have occurred in approximately 1000 of these by use of a priori criteria. These criteria included study design features (e.g., number of doses, dose range), dose–response relationship, statistical analysis, and reproducibility of results. Numerous biological endpoints were assessed, with growth responses the most prevalent, followed by metabolic effects, reproductive responses, longevity, and cancer. Hormetic responses were generally observed to be of limited magnitude with an average maximum stimulation of 30 to 60 percent over that of the controls. This maximum usually occurred 4- to 5-fold below the NOAEL for a particular endpoint. The present analysis suggests that hormesis is a reproducible and generalizable biological phenomenon and is a fundamental component of many, if not most, dose–response relationships. The relatively infrequent observation of hormesis in the literature is believed to be due primarily to experimental design considerations, especially with respect to the number and range of doses and endpoint selection. Because of regulatory considerations, most toxicologic studies have been carried out at high doses above the low-dose region where the hormesis phenomenon occurs.     

Understanding How Peer Mentoring and Capitalization Link STEM Students to Their Majors

This study investigated the role of peer mentoring and voluntary self‐development activities (i.e., capitalization) in anchoring science, technology, engineering, and mathematics students to their college majors. Online data were collected from 214 undergraduate students. As hypothesized, mentoring was positively related to capitalization, and both mentoring and capitalization were positively related to satisfaction with one's major, affective commitment to one's major, involvement in one's major, and willingness to be a mentor. Contrary to expectations, capitalization did not mediate the relationship between peer mentoring and student outcomes, suggesting that these constructs contribute independently to positive outcomes. Implications and future research directions are discussed.     

Research on persistent pain in late life: current topics and challenges

Older women often experience pain in their daily lives. This article provides an overview of topics addressed in the geriatric pain research published between 1999 and 2004. New areas of emphasis of research have emerged such as the recognition of body mass and weight as a factor in persistent pain, while other areas have expanded, including the focus on pain among elders with cognitive impairments and the use of alternative treatment approaches. Understanding of pain in late life is hindered by study samples that lack diversity, treatment approaches that are narrowly focused, and a lack of attention to quality of life issues.     

Differences in labour force participation by motherhood status among second-generation Turkish and majority women across Europe

Second-generation Turkish immigrants make up an increasingly important segment of European labour markets. These young adults are entering the prime working ages and forming families. However, we have only a limited understanding of the relationship between labour force participation and parenthood among second-generation Turkish women. Using unique data from the Integration of the European Second Generation survey (2007/08), we compared the labour force participation of second-generation Turkish women with their majority-group counterparts by motherhood status in four countries. We found evidence that motherhood gaps, with respect to labour force participation, were similar for majority and second-generation Turkish women in Germany and in Sweden; however, there may be larger gaps for second-generation mothers than for majority women in the Netherlands and France. Cross-national findings were consistent with the view that national normative and social policy contexts are relevant for the labour force participation of all women, regardless of migrant background.     

A Comparative Analysis of VHA,Non-VHA,and Overall Outpatient Treatment Use Intensity Among Older U.S. Veterans Denied or Awarded VA Service-Connected Disability Compensation

Poorer health is often associated with greater healthcare use among the general population. In contrast, while many veterans denied VA disability compensation ("denied applicants") are as impaired as those awarded VA disability compensation ("awarded applicants"), studies suggest that these veterans may nevertheless utilize less VHA healthcare. Whether they concurrently utilize less non-VHA, and overall healthcare, however, remains a critical, unresolved issue. The 2001 National Survey of Veterans was used to examine VHA, non-VHA, and overall outpatient healthcare treatment use intensity during the previous 12 months among veterans denied or awarded VA disability compensation. Results: Denied applicants were significantly more likely than those awarded to have not used any VHA outpatient healthcare during the previous 12 months (OR=2.45, 95% CI: 1.24, 4.81). Moreover, while not statistically significant, point estimates consistently suggested that denied may have concurrently used more non-VHA, and overall outpatient healthcare than awarded. It appears veterans denied VA disability compensation are forgoing VHA outpatient healthcare services, perhaps in favor of non-VHA outpatient healthcare services. While this result may be consistent with the intent of VA service-connected disability policy, further analysis is necessary to confirm adequate access to healthcare for denied veterans.     

Beyond conventional wisdom: community cultural wealth and the college knowledge of African American youth in the United States

African American youth are generally as likely as their peers from other racial and ethnic groups to aspire to earn a college degree; yet, in spite of their aspirations these students remain under-represented in college enrollment and graduation. Part of the disparity between these students’ aspirations and the realization of their goals may lie in their minimal college knowledge and nominal participation in postsecondary preparatory activities that have frequently been caused by the historic, and ongoing, systematic disenfranchisement of African Americans. During interviews, college students reflected on how similarly-aged family members, peers, co-workers, and parishioners assisted with various aspects of college preparation and enrollment. The community cultural wealth framework helps us understand the reason for, and importance of, this ‘lateral mentorship’ in the fulfillment of these students’ college aspirations. Consequently, educators and educational systems are challenged to be more responsive to the college preparatory needs of traditionally under-represented college-going populations.     

Stratification and prestige among elite experts in methodological and mathematical sociology circa 1975

This discussion has two purposes. One is to describe the social differentiation of experts within an élite invisible college devoted to methodological and mathematical work circa 1975. The other is to illustrate the positional approach in network analysis. After introducing the invisible college to be considered, the form of stratification within it is described. Although completely interconnected to one another, experts are stratified across five structurally unique statuses. The form of stratification is given greater empirical meaning by considering its content. There is a subtle linkage between the extent to which a status is defined by substantive and methodological influence relations. The most prominent experts have merged their methodological concerns with specific substantive concerns. The most prestigious status is occupied by a “social statistics élite” to whom a “mobility élite” exists as a satellite status. Methodology leaders among social psychologists divide into a group pursuing the study of three-person groups, a “triads élite”, and a group with more general interests, a “social psychology élite”. Finally, a “mathematical sociology élite” jointly define no status since they have highly dissimilar substantive relations with one another and other experts. The last question addressed concerns the distribution of prestige in the college. As would be expected under a norm of universalism, the relative prestige of experts within the college is uniquely determined only by an expert's record of publishing in the college's core journals. The discussion concludes with comments.     

A note on inferences regarding network subgroups

The evidence presented in Bernard et al. (1980) does not warrant their conclusion. We comment on their lack of concern with the substance of social differentiation in the systems they use as evidence. The substance of social structure is argued to affect the scope, adequacy and power of conclusions drawn from a network analysis and is accordingly a factor to be explicitly considered in justifying those conclusions. With these ideas in mind, our reanaly sis of one system on which good data are available, ostensibly supporting the Bernard et al. conclusion, illustrates how their conclusion regarding network subgroups in that system is unwarranted