建议(英文)

Editor Grace Yang,from the United States, answers readers' questions about cuisine in China. Dear Grace, Every time I visit a different country,especially in Asia,my colleagues and I feel particularly nervous about how to eat.     

Normal stress and coping

Many Black families have chosen alternative lifestyles to accommodate the realities in their lives. The diversity in their lifestyles has often been viewed as “deviance” or “pathological” by White-oriented social science professionals. Black families, however, encounter the pressures any American family may face, and in addition they live under the continuous and varying stress of racially motivated oppression and inequalities that affect many aspects of their lives. The alternative lifestyles many Black American families have developed help to illuminate how Black families cope with the dual stresses of race and life events. This article describes the impact of stress in the lives of two of the variant alternative family forms found in Black families—a single parent family and an extended family. The two families are part of a comprehensive longitudinal study of Black families and their children, the Toddler and Infant Experiences Study (TIES). In addition to documentation of family stress, the data are examined within a conceptual framework that recognizes the dual stress factors of race and life events.     

Of models and myths: Asian(Americans) in STEM and the neoliberal racial project

This paper examines historical and contemporary racializations of Asian(Americans) within the STEM system. The prevailing perception of Asian(Americans) as model minorities masks how their multiple and contradictory positionings in the STEM system perpetuate the neoliberal racial project and reproduce systems of racism and oppression. Through a multidisciplinary analysis of STEM education and industry, we demonstrate that the shifting racialization of Asian(Americans) secures advantages for White Americans by promoting meritocracy and producerism and justifies White supremacy. By serving these functions, the racialization of Asian(Americans) within the STEM system is central to the neoliberal racial project. This paper also suggests how STEM education researchers can reveal and resist, rather than veil and support, the neoliberal racial project in STEM.     

A robust pairwise likelihood method for incomplete longitudinal binary data arising in clusters

Clustered longitudinal data feature cross‐sectional associations within clusters, serial dependence within subjects, and associations between responses at different time points from different subjects within the same cluster. Generalized estimating equations are often used for inference with data of this sort since they do not require full specification of the response model. When data are incomplete, however, they require data to be missing completely at random unless inverse probability weights are introduced based on a model for the missing data process. The authors propose a robust approach for incomplete clustered longitudinal data using composite likelihood. Specifically, pairwise likelihood methods are described for conducting robust estimation with minimal model assumptions made. The authors also show that the resulting estimates remain valid for a wide variety of missing data problems including missing at random mechanisms and so in such cases there is no need to model the missing data process. In addition to describing the asymptotic properties of the resulting estimators, it is shown that the method performs well empirically through simulation studies for complete and incomplete data. Pairwise likelihood estimators are also compared with estimators obtained from inverse probability weighted alternating logistic regression. An application to data from the Waterloo Smoking Prevention Project is provided for illustration. The Canadian Journal of Statistics 39: 34–51; 2011 © 2010 Statistical Society of Canada     

Is there a (transracial) adoption achievement gap?: A national longitudinal analysis of adopted children's educational performance

In one of the first longitudinal population-based studies examining adopted children's educational achievement, we analyze whether there is a test-score gap between children in adoptive families and children in biological families. Using data from the Early Childhood Longitudinal Study, we find in aggregate adopted children have lower reading and math scores than their counterparts living in biological families. Yet there is significant variation among adoptive families by their race and health status. On one hand adoptive parents tend to be White and have more economic capital than their non-adoptive counterparts potentially contributing to educational advantages. However adopted children are also more likely to have special educational needs, contributing to greater educational disadvantages. Untangling these variables through a multivariate regression analysis, we find that transracially adopted children have similar test scores to White children living with biological parents. We point to the interaction between race, family resources and children's health status and how these characteristics differentially shape achievement outcomes for adopted children.     

Improving Understanding About Tanning Behaviors in College Students: A Pilot Study

Abstract

Objective: Melanoma is the second most common cancer diagnosed among 15- to 29-year-olds. This pilot study assessed behaviors, barriers, and beliefs relevant to sun exposure and protective behaviors. Participants: The sample comprised 153 undergraduate students at a large state university in western New York. Methods: Participants completed an online survey about sun safety habits, barriers to using sunblock, and beliefs about tanning and sun exposure. Results: Response rate was 90.8% (n = 139). Most students (87.8%) reportedly spent ≥ 3 hours per day outside in the summer, but only 17.3% reported always using sunblock during this time. Sixty percent reported recent indoor tanning and 41% reported more than 10 lifetime sunburns. The greatest barrier to using sunblock was forgetting (84.2%). Conclusions: Demographics coupled with inconsistent and low levels of sunblock use, high annual prevalence of indoor tanning, and multiple lifetime sunburns indicate that this sample is at high risk for skin cancer.     

Factors Influencing use of Bicycle Helmets among Undergraduate Students

Abstract

Undergraduate bicyclists' attitudes toward using helmets were surveyed, using a 66-item questionnaire. The authors identified a series of factors that would increase the likelihood of students' using the protective devices and suggest interventions to be considered in developing programs to decrease morbidity and mortality in the bicycle-riding population.