Flow diagnostics and visualization in wind tunnels and flight

The Langley Research Center has a concentrated and directed effort under way to develop both conventional and non-intrusive diagnostic instrumentation. These instruments are being developed to operate over large Mach number, total temperature, and total pressure ranges. Efforts are being made to evaluate the measurements made by the various instruments to determine the most accurate and reliable instrument to be used under a given flow environment. Although only one flow visualization technique was described, there are many different types presently being used at Langley Research Center

Panamanian Grandmothers' Family Relationships and Adjustment to Having a Grandchild with a Disability

The purpose of this article was to explore the family relationships and role adjustment of grandmothers in the Republic of Panama who have a grandchild with special needs. Thirty Panamanian grandmothers of children with a disability were interviewed using a standardized format and non-directive probing. Categories of analysis were established only after the data was fully collected and reviewed. The results indicate that for most Panamanian grandmothers, their changes in family relationships are not dramatic when they have a grandchild with a disability; however, 25% clearly report a deteriorated relationship with their son-in-laws. They view their relationship with their grandchild with a disability to be one that provides a mixture of affection, love, acceptance and patience. In the area of role adjustment, they see a need to become more involved in areas that include assisting their grandchildren and/or her family with caregiving and household responsibilities, economic and medical support, or in areas related to school/academic, spiritual or recreational activities. With respect to emotional adjustment, Panamanian grandmothers of children with disabilities distinguish themselves from grandmothers in the United States, by experiencing reduced emotional stress and dwelling less on personal loss, grief, or role stigma. The implications are that there appear to be universal beliefs and adjustment factors that Panamanian grandmothers of grandchildren with disabilities experience. However, culture appears to have a genuine influence that results in subtle but unique differences from their U.S. counterparts.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

Enduring Legacy? Charles Tilly and Durable Inequality

This article assesses Charles Tilly’s Durable Inequality and traces its influence. In writing Durable Inequality, Tilly sought to shift the research agenda of stratification scholars. But the book’s initial impact was disappointing. In recent years, however, its influence has grown, suggesting a more enduring legacy

Accounting for risk in valuing forest carbon offsets

<p>Abstract</p> <p>Background</p> <p>Forests can sequester carbon dioxide, thereby reducing atmospheric concentrations and slowing global warming. In the U.S., forest carbon stocks have increased as a result of regrowth following land abandonment and in-growth due to fire suppression, and they currently sequester approximately 10% of annual US emissions. This ecosystem service is recognized in greenhouse gas protocols and cap-and-trade mechanisms, yet forest carbon is valued equally regardless of forest type, an approach that fails to account for risk of carbon loss from disturbance.</p> <p>Results</p> <p>Here we show that incorporating wildfire risk reduces the value of forest carbon depending on the location and condition of the forest. There is a general trend of decreasing risk-scaled forest carbon value moving from the northern toward the southern continental U.S.</p> <p>Conclusion</p> <p>Because disturbance is a major ecological factor influencing long-term carbon storage and is often sensitive to human management, carbon trading mechanisms should account for the reduction in value associated with disturbance risk.</p

Contextualizing students' alcohol use perceptions and practices within French culture: an analysis of gender and drinking among sport-science college students

Although research has examined alcohol consumption and sport in a variety of contexts, there is a paucity of research on gender and gender dynamics among French college students. The present study addresses this gap in the literature by examining alcohol use practices by men and women among a non-probability sample of French sport science students from five different universities in Northern France. We utilized both survey data (N = 534) and in-depth qualitative interviews (n = 16) to provide empirical and theoretical insight into a relatively ubiquitous health concern: the culture of intoxication. Qualitative data were based on students’ perceptions of their own alcohol use; analysis were framed by theoretical conceptions of gender. Survey results indicate gender differences in alcohol consumption wherein men reported a substantially higher frequency and quantity of alcohol use compared to their female peers. Qualitative findings confirm that male privilege and women’s concern for safety, masculine embodiment via alcohol use, gendering of alcohol type, and gender conformity pressures shape gender disparities in alcohol use behavior. Our findings also suggest that health education policy and educational programs focused on alcohol-related health risks need to be designed to take into account gender category and gender orientation