A Meta-Analysis of Children's Hand-to-Mouth Frequency Data for Estimating Nondietary Ingestion Exposure

Because of their mouthing behaviors, children have a higher potential for exposure to available chemicals through the nondietary ingestion route; thus, frequency of hand-to-mouth activity is an important variable for exposure assessments. Such data are limited and difficult to collect. Few published studies report such information, and the studies that have been conducted used different data collection approaches (e.g., videography versus real-time observation), data analysis and reporting methods, ages of children, locations, and even definitions of "mouthing." For this article, hand-to-mouth frequency data were gathered from 9 available studies representing 429 subjects and more than 2,000 hours of behavior observation. A meta-analysis was conducted to study differences in hand-to-mouth frequency based on study, age group, gender, and location (indoor vs. outdoor), to fit variability and uncertainty distributions that can be used in probabilistic exposure assessments, and to identify any data gaps. Results of this analysis indicate that age and location are important for hand-to-mouth frequency, but study and gender are not. As age increases, both indoor and outdoor hand-to-mouth frequencies decrease. Hand-to-mouth behavior is significantly greater indoors than outdoors. For both indoor and outdoor hand-to-mouth frequencies, interpersonal, and intra-personal variability are approximately 60% and approximately 30%, respectively. The variance difference among different studies is much bigger than its mean, indicating that different studies with different methodologies have similar central values. Weibull distributions best fit the observed data for the different variables considered and are presented in this article by study, age group, and location. Average indoor hand-to-mouth behavior ranged from 6.7 to 28.0 contacts/hour, with the lowest value corresponding to the 6 to <11 year olds and the highest value corresponding to the 3 to <6 month olds. Average outdoor hand-to-mouth frequency ranged from 2.9 to 14.5 contacts/hour, with the lowest value corresponding to the 6 to <11 year olds and the highest value corresponding to the 6 to <12 month olds. The analysis highlights the need for additional hand-to-mouth data for the <3 months, 3 to <6 months, and 3 to <6 year age groups using standardized collection and analysis because of lack of data or high uncertainty in available data. This is the first publication to report Weibull distributions as the best fitting distribution for hand-to-mouth frequency; using the best fitting exposure factor distribution will help improve estimates of exposure. The analyses also represent a first comprehensive effort to fit hand-to-mouth frequency variability and uncertainty distributions by indoor/outdoor location and by age groups, using the new standard set of age groups recommended by the U.S. Environmental Protection Agency for assessing childhood exposures. Thus, the data presented in this article can be used to update the U.S. EPA's Child-Specific Exposure Factors Handbook and to improve estimates of nondietary ingestion in probabilistic exposure modeling.     

Toddlers' Understanding of Iconic Models: Cross‐Task Comparison of Selection and Preferential Looking Responses

Toddlers' symbolic understanding of iconic models was assessed through 2 comprehension‐based tasks: 1 based on looking and 1 requiring manual selection of the target object. Toddlers received either iconic models or photographs of models as the symbolic referent. Overall, 18‐month‐olds performed poorly, and both 22‐and 26‐month‐olds performed relatively well across tasks. Contrary to expectations that the 2 tasks would impose different levels of attentional demands, performance was relatively consistent across tasks. Vocabulary size was significantly related to performance, even when the effects of age were controlled. Relations between model comprehension and more sophisticated manifestations of symbolic comprehension are considered.     

“Raised Eyebrows”: Working with Lesbian‐Parented Families — Experiences of Childcare Centre Directors in Australia

When reflecting on their experiences with children from lesbian‐parented families, 64 childcare centre directors in Victoria, Australia indicated that explicit programs, policies or resources of support were absent in their centres. Importantly, participants' pre‐ and post‐professional education either ignored or superficially addressed lesbian matters. This may explain the limited nature of inclusion of lesbian matters in early childhood education. Of note, is the pervasive nature of ‘truths’ upheld by educators. That is, in the Foucauldian sense these educators perceived lesbian families as being the ‘same’ as heterosexual families. Despite the considerable shifts in professional attitudes and ‘truths’ about sexuality, the Foucauldian silences were being reinforced in everyday practice as evidenced by the reference to ‘raised eyebrows’ by participants when this silence about sexuality was threatened.     

Social Entrepreneurship in Communities

The United States ranks low on many measures of population health. In addressing this societal problem, nonprofit health conversion foundations are emerging as important, local social entrepreneurs. We investigated the processes by which these organizations create and implement locally situated innovative approaches to promote health and wellness. Using an inductive, qualitative approach, we identified central themes by which conversion foundations, as social entrepreneurs, developed collaborative solutions to health. We found that they defined the social problem, generated social capital in the community, and educated potential partners. These mechanisms helped build a groundwork for collaboration among community actors. Conversion foundations then convened partners with complementary competencies to develop creative solutions. This research contributes to the literature on social entrepreneurship and nonprofits by expanding understanding of how foundations can foster community collaborations to develop innovative solutions to social problems. Further, this study sheds light on the activities and processes of nonprofit health conversion foundations as actors with the potential to improve population health.     

Challenges in Governance for the PSA as a Regional Sociological Association

In this essay we identify and discuss some of the challenges currently faced by the Pacific Sociological Association (PSA) related to its governance. The PSA is not unlike other regional associations and faces similar challenges. The rapid growth in membership for the association has repeatedly placed strains on the governance structure, particularly on the office of the Executive Director. The formal organization of governance has not always matched the actual ways in which governing is carried out, almost entirely by volunteers. Although there is growth, there is also significant turnover in members from year to year and this presents a challenge for maintaining an active, vibrant organization. The governing structure of elected committees and officers has not changed with membership growth but the number of standing committees has increased dramatically, spreading the volunteer membership thin. To meet these challenges, we make several suggestions. We argue for the importance of maintaining a stable membership; that the PSA should continue its work to formally define roles and positions including a restructuring of its committees; and an emphasis should be placed on providing an intellectual home for the members of the PSA. We elaborate on these responses to the challenges faced by the PSA and suggest considerations for the association as it moves into the final decade of its first 100 years.     

Investigating the Effects of Pre‐school Provision: Using Mixed Methods in the EPPE Research

The Effective Provision of Pre‐school Education (EPPE) project is a longitudinal study of young children between the ages of 3 and 7 years. Research began in 1997 and both quantitative and qualitative methods were used to explore the effects of pre‐school education on children’s attainment and social/behavioural development at entry to school, and of any continuing effects on such outcomes at the end of Key Stage 1 (age 7). The sample included over 3,000 children and 141 pre‐school centres drawn from six different types of providers. In addition, a home sample of children who had not attended a pre‐school centre was included. In order to identify the processes that might influence centre effectiveness, observational data were collected and centre managers interviewed. In‐depth case studies of 12 more effective centres were used to explore and illuminate the processes, particularly in relation to pedagogy, associated with better child outcomes. A mixed method approach was adopted to simultaneously answer both confirmatory and exploratory questions, to support user engagement and provide triangulation. The paper argues that the mixed method approach supported the development of stronger research inferences.     

Heart Disease Risk Perception in College Men and Women

Abstract

The authors sought to assess the perception of risks for coronary heart disease (CHD) in college men and women. They surveyed 470 undergraduates from 2 major 4-year institutions who completed a questionnaire that measured perceived risks for heart disease. Sixty-eight percent of the respondents rated their risks as lower or much lower than those of their peers, indicating a clear optimistic bias. The research also revealed that the students who exercised regularly rated their risk of coronary disease lower than those who did not do so. In addition, women perceived a number of risk markers to be more potent or causative factors than men did. A significant number of participants did not comprehend commonly understood causal relationships associated with heart disease risk. The findings in this preliminary investigation suggest that college men and women do not accurately perceive their risks for developing heart disease.     

Experiencing Stigma and Exclusion: The Influence of Neoliberal Perspectives,Practices, and Policies on Living with Chronic Illness and Disability

Neoliberal perspectives, policies, and practices increasingly affect chronically ill and disabled people's embodied experiences of stigma and exclusion. Neoliberalism emphasizes individual responsibility and self-sufficiency, a limited social safety net, and narrow governmental accountability. Examining pivotal experiences of chronically ill people shows how neoliberalism can frame their alternatives, interactions, and actions. This examination prompts reconsidering Goffman's concept of stigma to include how larger social policies and practices affect experiencing stigma and exclusion and, also, illuminates temporal features of receiving a diagnosis, disclosing illness, and dealing with disabilities and unpredictable bodies. The analysis derives from an ethnographic story and published and unpublished personal accounts from first-hand and library research over the course of my career.     

Government and Non-profit Collaboration in Times of Deliverology,Policy Innovation Laboratories and Hubs,and New Public Governance

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This article investigates the implications of the move from public administration to new public management to new public...     

The accountability gap: The use of preliminary and evaluative research in Spain

In a context where it is of increasing importance to optimize resources, to refine the definition of the environment and to demonstrate the return on investment (ROI), preliminary research and evaluation in PR have not evolved significantly in the past two decades. There are very few publications examining the Spanish case and the results of this study indicate that these practices are uncommon. There is a slight preference for research prior to the development of the campaign at the expense of evaluative research. Furthermore, there is a notable discrepancy between the results of the Spanish study and the published studies from other countries: perception audits (outtakes) and views (outcomes) are undertaken more frequently than publicity audits (outputs).