School-to-Career and Post-Secondary Education: Evidence from the Philadelphia Educational Longitudinal Study

We study a set of programs implemented in Philadelphia high schools that focus on boosting post-secondary enrollment. These programs are less career oriented than traditional school-to-work programs, but are consistent with the broadening of the goals of school-to-work to emphasize post-secondary education. The Philadelphia Longitudinal Educational Study (PELS) data set that we examine contains an unusually large amount of information on individuals prior to placement in STC programs. We use the detailed information in the PELS to study the process of selection into these programs and to examine their impact on a set of mainly schooling-related outcomes during and after high school, although we also consider their impact on non-academic outcomes. The data point to positive effects of these programs on high school graduation and on both academic and non-academic awards in high school, and similar negative effects on dropping out of high school. The results also suggest positive effects on aspirations for higher education and on college attendance. In addition, there is some evidence that these programs are more effective in increasing college attendance and aspirations among at-risk youths.

Conflito trabalho-família, auto eficácia parental e estilos parentais percebidos em pais e mães da cidade de Talca no Chile

The relationship between levels of work-family conflict, parental self-efficacy and perceived parenting styles in a group of 43 school children and both working parents is analyzed, controlling for socio-demographic variables. Also, gender differences are identified in the variables and the relationship between them in relation to the number of children. Three instruments were applied to the sample for measuring the referred variables. A significant and negative relationship is observed between levels of work-family conflict and parental self-efficacy (r = -0.484, P <0.001). The authoritarian parenting style has greater association with self-efficacy (r = 0.301, P = 0.005). A significant and negative relationship between self-efficacy and number of children (r = -0.257, P = 0.017) is reported. Finally, it is concluded that women have greater work-family conflict than men.Se analiza la relación existente entre los niveles de conflicto trabajo-familia, autoeficacia parental y estilos parentales percibidos en un grupo de 43 niños estudiantes y ambos padres trabajadores, controlando las variables sociodemográficas. Así mismo, se identifican las diferencias por género en las variables, y la relación que existe entre ellas con respecto al número de hijos. A la muestra le fueron aplicados tres instrumentos de medición de las variables referidas. Se observa una relación significativa y negativa entre los niveles de conflicto trabajo-familia y la autoeficacia parental (r= -0,484; p<0,001). El estilo parental autoritario presenta mayor asociación con autoeficacia (r=0,301; p=0,005). Se reporta una relación significativa y negativa entre autoeficacia y número de hijos (r=-0,257; p=0,017). Finalmente se reporta que las mujeres presentan mayor conflicto trabajo-familia que los hombres.Analisa-se a relação existente entre os níveis de conflito trabalho-família, auto eficácia parental e estilos parentais percebidos em um grupo de 43 crianças estudantes de pais trabalhadores, controlando as variáveis sociodemográficas. Assim mesmo, identificam-se as diferenças por gênero nas variáveis, e a relação que existe entre elas com respeito ao número de filhos. Foram aplicados à mostra três instrumentos de medição das variáveis referidas. Observa-se uma relação significativa e negativa entre os níveis de conflito trabalho-família e a auto eficácia parental (r= -0,484; p<0,001). O estilo parental autoritário apresenta maior associação com autoeficácia (r=0,301; p=0,005). Reporta-se uma relação significativa e negativa entre autoeficácia e número de filhos (r=-0,257; p=0,017). Finalmente reporta-se que as mulheres apresentam maior conflito trabalho-família que os homens

Particles and fields in fluid turbulence

The understanding of fluid turbulence has considerably progressed in recent years. The application of the methods of statistical mechanics to the description of the motion of fluid particles, i.e. to the Lagrangian dynamics, has led to a new quantitative theory of intermittency in turbulent transport. The first analytical description of anomalous scaling laws in turbulence has been obtained. The underlying physical mechanism reveals the role of statistical integrals of motion in non-equilibrium systems. For turbulent transport, the statistical conservation laws are hidden in the evolution of groups of fluid particles and arise from the competition between the expansion of a group and the change of its geometry. By breaking the scale-invariance symmetry, the statistically conserved quantities lead to the observed anomalous scaling of transported fields. Lagrangian methods also shed new light on some practical issues, such as mixing and turbulent magnetic dynamo.Comment: 165 pages, review article for Rev. Mod. Phy

Mouse Background Strain Profoundly Influences Paneth Cell Function and Intestinal Microbial Composition

Increasing evidence supports the central role of Paneth cells in maintaining intestinal host-microbial homeostasis. However, the direct impact of host genotype on Paneth cell function remains unclear. Here, we characterize key differences in Paneth cell function and intestinal microbial composition in two widely utilized, genetically distinct mouse strains (C57BL/6 and 129/SvEv). In doing so, we demonstrate critical influences of host genotype on Paneth cell activity and the enteric microbiota.Paneth cell numbers were determined by flow cytometry. Antimicrobial peptide (AMP) expression was evaluated using quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR), acid urea-polyacrylamide gel electrophoresis, and mass spectrometry. Effects of mouse background on microbial composition were assessed by reciprocal colonization of germ-free mice from both background strains, followed by compositional analysis of resultant gut bacterial communities using terminal restriction fragment length polymorphism analysis and 16 S qPCR. Our results revealed that 129/SvEv mice possessed fewer Paneth cells and a divergent AMP profile relative to C57BL/6 counterparts. Novel 129/SvEv á-defensin peptides were identified, including Defa2/18v, Defa11, Defa16, and Defa18. Host genotype profoundly affected the global profile of the intestinal microbiota, while both source and host factors were found to influence specific bacterial groups. Interestingly, ileal α-defensins from 129/SvEv mice displayed attenuated antimicrobial activity against pro-inflammatory E. coli strains, a bacterial species found to be expanded in these animals.This work establishes the important impact of host genotype on Paneth cell function and the composition of the intestinal microbiota. It further identifies specific AMP and microbial alterations in two commonly used inbred mouse strains that have varying susceptibilities to a variety of disorders, ranging from obesity to intestinal inflammation. This will be critical for future studies utilizing these murine backgrounds to study the effects of Paneth cells and the intestinal microbiota on host health and disease

Predictors of nurturant parenting in teen mothers living in three generational families

Direct and indirect effects of grandparents on maternal nurturance in teen mothers (TM) living in three-generational families were explored with path analytic techniques in a sample of 107 working-class families. Perceived support from the teen's mother, grandparents' nurturance toward the baby, and the presence of the grandfather as a father figure in the home were hypothesized as increasing TM nurturance. TM nurturance was found to be positively predicted by grandparent nurturance and negatively predicted by TM perceived support from her mother. The strongest predictor of TM nurturance was grandfather nurturance toward the baby.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/43953/1/10578_2006_Article_BF02353198.pd

Social change and the family: Comparative perspectives from the west, China, and South Asia

This paper examines the influence of social and economic change on family structure and relationships: How do such economic and social transformations as industrialization, urbanization, demographic change, the expansion of education, and the long-term growth of income influence the family? We take a comparative and historical approach, reviewing the experiences of three major sociocultural regions: the West, China, and South Asia. Many of the changes that have occurred in family life have been remarkably similar in the three settings—the separation of the workplace from the home, increased training of children in nonfamilial institutions, the development of living arrangements outside the family household, increased access of children to financial and other productive resources, and increased participation by children in the selection of a mate. While the similarities of family change in diverse cultural settings are striking, specific aspects of change have varied across settings because of significant pre-existing differences in family structure, residential patterns of marriage, autonomy of children, and the role of marriage within kinship systems.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45661/1/11206_2005_Article_BF01124383.pd

Philadelphia Family Management Study, 1991-2001

This longitudinal study was undertaken to explore how disadvantaged families respond to and manage risk and opportunity in their communities. Of special interest to the research team was the question of whether families alter their children's life chances by successfully adapting their parenting styles to the dangerous and restrictive conditions of living in the inner city. Also, this study addresses how the social organization of the neighborhood - or the absence of organization - leads parents to adopt different techniques of managing their children during adolescence. A sample of 489 children between the ages of 11 and 14 and their parents were interviewed. The families lived in predominately White or African American poor and working-class neighborhoods in Philadelphia. The interviews consisted of a wide range of topics including perceptions of community, parental strategies for managing risks and opportunities, and measures from both parents and children of how the youth were faring. The study gathered enough families from each of the five different neighborhoods which were racially and economically contrasting to develop aggregate community measures of features of social organization (such as the degree of cohesiveness, the perceived level of social control, the amount of exchange, and social trust), availability and access to resources, size and composition of informal networks, and perceived dangers and opportunities

How marital dissolution affects children: Variations by age and sex.

This study estimated the effects of a marital dissolution on several measures of children&apos;s well-being at two points in time using a nationally representative sample of 1,197 children. On the basis of reports from parents, teachers, and the children themselves, the outcome measures tap aspects of problem behavior, psychological distress, and academic performance. Regression estimates suggest that marital dissolution has pervasive and long-lasting effects in all three areas. In magnitude, the effects are slightly smaller than sex differences but larger than those for many other demographic variables. There is no evidence that dissolution effects are larger for boys than for girls. In fact, those differences that are significant show larger effects for girls. There is, however, evidence that effects are larger for children who are very young at the time of the dissolution

Remarriage After Divorce: A Longitudinal Analysis of Well Being, 1979

This study is a follow-up of Spanier (1977) "Adjustment to Separation and Divorce," also archived at the center (Log# 00738). The purpose of the follow-up was to investigate the changing patterns of remarriage and to examine the possibility that the form and functioning of first and second marriages might be different. One hundred eighty-one of the original 205 respondents participated in the follow-up. The sample is white with a range of social classes. Sixty-two of the participants had remarried by the time of the second interview, and their spouses were interviewed as well. Structured interviews were conducted by the Institute for Survey Research (ISR) of Temple University, covering the following topics: background information on current relationship, children living in the household, parenting and the division of responsibilities for child rearing, visitation of children not living in the household, attitudes toward stepchildren, plans for more children, relationship with former and current spouse, social network, plans for and attitudes about remarriage, physical and mental health, and economics. Many of the questions are directly comparable to those in the original data collection

Connecting Entrance and Departure: The Transition to Ninth Grade and High School Dropout

The descriptive data for this urban school system indicate that the modal dropout grade is ninth grade, even though students may have been enrolled in high school for three or even four years. Credit-wise, the largest proportion of dropouts are barely out of the starting gate in high school