The impact of midlife educational, work, health and family experiences on men's early retirement

Objectives. In empirical studies on predictors of retirement, midlife experiences have often remained implicit or been neglected. This study aims to improve our understanding of retirement by examining the impact of midlife educational, work, health, and family experiences on early retirement intentions and behavior. We distinguish theoretically and empirically between financial and nonfinancial preretirement factors through which midlife experiences could affect retirement. Methods. Using panel data of 1,229 Dutch male older workers, we estimated linear regression models to explain retirement intentions and logistic regression models to explain retirement behavior. Results. Midlife experiences in all studied life spheres are related to retirement intentions. Educational investments, job changes, late transitions into parenthood, and late divorces are associated with weaker intentions to retire early. Midlife health problems are related to stronger early retirement intentions. For midlife work and family experiences, the relationships are (partly) mediated by the preretirement financial opportunity structure. In the educational, work, and health spheres, the preretirement nonfinancial situation has a mediating effect. Only some of the predictors of retirement intentions also predicted retirement behavior. Discussion. Given the destandardization of life courses, information on distal life experiences might become even more important toward understanding retirement in the future. keywords: children; divorce; education; life course; retirement; work history

Evaluating Recruitment of American Eel, Anguilla rostrata, to the Potomac River Spring 2003

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing the states’ efforts to collect data on the resource and the fishery it supports through both fishery dependent and fishery independent studies. To this end, member jurisdictions (including the PRFC) agreed to implement an annual abundance survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic coast (ASMFC, 2000). The development of these surveys began as pilot surveys in 2000 with full implementation by the 2001 season. Results from these surveys will provide critical data on eel coastal recruitment success and further understanding of American eel population dynamics

Interdependencies in mothers' and daughters' work-family life course trajectories : similar but different?

We acknowledge financial support from the Spanish Ministry of Economy and Competitiveness (Grant No. RYC-2015-18254); the Spanish Ministry of Science, Innovation and Universities (Grant No. RTI-2018-097664-A-100); and the Support Network for Interdisciplinary Social Policy Research (FIS) of the German Federal Ministry of Labor and Social Affairs.Women's life courses underwent substantial changes in the family and work domains in the second half of the twentieth century. The associated fundamental changes in opportunity structures and values challenged the importance of families of origin for individual life courses, but two research strands suggest enduring within-family reproduction of women's family behavior and work outcomes. We revisit this issue by studying two complementary types of intergenerational associations in women's combined work-family trajectories. On the one hand, we examine similarities across mothers' and daughters' work-family trajectories to address the direct within-family reproduction of female life courses (intergenerational persistence). On the other hand, we examine systematic associations between work-family trajectories that are typical in each generation to address intergenerational interdependencies beyond direct reproduction that account for individual and societal constrains and opportunities that each generation faced (intergenerational correspondence). We use a within-dyad approach to sequence analysis and examine combined work-family trajectories between ages 18 and 35 of two generations of women, born in 1930-1949 and in 1958-1981, within the same family drawn from the German Socio-Economic Panel. Overall, we find evidence of small but nontrivial persistence in work-family trajectories across generations that is partly attributed to within-family mechanisms of reproduction. In addition, we find correspondence across typical trajectory patterns of each generation, without daughters necessarily resembling their mothers' trajectories. The strength of the intergenerational associations varies by social background. Our research improves and broadens our understanding of the reproduction of female life courses across generations

Best Practices from the Design and Development of the Ares I Launch Vehicle Roll and Reaction Control Systems

On April 15, 2010 President Barak Obama made the official announcement that the Constellation Program, which included the Ares I launch vehicle, would be canceled. NASA s Ares I launch vehicle was being designed to launch the Orion Crew Exploration Vehicle, returning humans to the moon, Mars, and beyond. It consisted of a First Stage (FS) five segment solid rocket booster and a liquid J-2X Upper Stage (US) engine. Roll control for the FS was planned to be handled by a dedicated Roll Control System (RoCS), located on the connecting interstage. Induced yaw or pitch moments experienced during FS ascent would have been handled by vectoring of the booster nozzle. After FS booster separation, the US Reaction Control System (ReCS) would have provided the US Element with three degrees of freedom control as needed. The best practices documented in this paper will be focused on the technical designs and producibility of both systems along with the partnership between NASA and Boeing, who was on contract to build the Ares I US Element, which included the FS RoCS and US ReCS. In regards to partnership, focus will be placed on integration along with technical work accomplished by Boeing. This will include detailed emphasis on task orders developed between NASA and Boeing that were used to direct specific work that needed to be accomplished. In summary, this paper attempts to capture key best practices that should be helpful in the development of future launch vehicle and spacecraft RCS designs