Frequency of Selecting Noise Variables in Subset Regression Analysis: A Simulation Study

This article presents the results of a simulation study of variable selection in a multiple regression context that evaluates the frequency of selecting noise variables and the bias of the adjusted R ² of the selected variables when some of the candidate variables are authentic. It is demonstrated that for most samples a large percentage of the selected variables is noise, particularly when the number of candidate variables is large relative to the number of observations. The adjusted R ² of the selected variables is highly inflated.     

Work Trajectories of Female and Male Immigrants in Spain

This article aims to examine in depth the work trajectories of individuals over time, in order to provide a wider perspective of the employment history of immigrants compared to native people, by gender and for more than one decade (2005–2017) in Spain. We use microdata (cohort and multivariate analysis) from the Labour Force Survey and carry out a comparison for three groups: the Spanish born in Spain, the Spanish born abroad, and the non-Spanish born abroad. The results confirm that the non-Spanish born-abroad group is characterized by the existence of segmented assimilation. All foreigners suffered a loss in their work trajectories, since their employment rate in 2017 has as yet neither reached the level of the last years of the previous economic expansion nor the level of the previous cohorts at the same age.     

Conceptualising social capital in relation to the well-being of children and young people: a critical review

This exploratory article forms the background for an empirical study for the Health Education Authority on children, young people, health, well-being and social capital. In terms of morbidity, children tend not to exhibit clear health problems, but obviously engage in activities that have important implications for their health and well-being (West & Sweeting, 1996), and these activities may be influenced by, as well as impact upon, children's social capital. Social capital is an elusive concept and has been defined in various ways, and refers to sociability, social networks and social support, trust, reciprocity, and community and civic engagement. The paper contrasts three interpretations of the concept, by Coleman (1988, 1990), Putnam (1993, 1995) and Bourdieu (1986). It concludes that the concept is currently poorly specified as it relates to children, and that the use of the term is inherently problematic, and needs to be carefully critiqued and empirically grounded before it can usefully be applied in social policy formulations. One possible way forward might be to conceptualise social capital not so much as a measurable ‘thing’, rather as a set of processes and practices that are integral to the acquisition of other forms of ‘capital’ such as human capital and cultural capital (ie qualifications, skills, group memberships, etc).     

Secular declines in the association between obesity and mortality in the United States

Recent research suggests that rising obesity will restrain future gains in US life expectancy and that obesity is an important contributor to the current shortfall in us longevity compared to other high-income countries. Estimates of the contribution of obesity to current and future national-level mortality patterns are sensitive to estimates of the magnitude of the association between obesity and mortality at the individual level. We assessed secular trends in the obesity/mortality association among cohorts of middle-aged adults between 1948 and 2006 using three long-running US data sources: the Framingham Heart Study, the National Health and Nutrition Examination Survey, and the National Health Interview Survey. We find substantial declines over time in the magnitude of the association between obesity and overall mortality and, in certain instances, cardiovascular-specific mortality. We conclude that estimates of the contribution of obesity to current national-level mortality patterns should take into account recent reductions in the magnitude of the obesity and mortality association.     

Discrimination Hurts: The Academic,Psychological, and Physical Well‐Being of Adolescents

Little is known about the frequency of ethnic or racial discrimination and its implications for Latin American and Asian youths' development. In this study, we examined if there were ethnic and generation differences among 601 12th graders from Latin American (36%), Asian (43%), and European (19%) backgrounds in the frequency of peer, adult, and daily discrimination, and whether discrimination predicted their well‐being. Adolescents from Latin American and Asian backgrounds reported more adult and peer discrimination than their peers from European backgrounds. Latin American youth reported more adult discrimination than their Asian peers. Discrimination predicted lower grade point averages and self‐esteem, and more depressive symptoms, distress, and physical complaints. Ethnic identity, ethnic socialization, and race rejection sensitivity did not moderate the associations between discrimination and well‐being.     

Effective casework practice with adolescents: perspectives of statutory child protection practitioners

Many child protection practitioners struggle with the complexity of problems and the limited casework time for adolescent cases. However, there is little research on child protection practice or case management that can guide a practitioner working with adolescents in the child protection system. The aim of this study was to explore and describe the nature of effective child protection practice with adolescents from the perspective of statutory child protection practitioners in one state in Australia. Data were collected through focus group discussions and interviews with child protection practitioners and managers currently working with adolescents (n= 44). A grounded theory approach was used to identify the dominant themes or categories and form linkages and relationships through constant comparison techniques. Seven key categories emerged from this analysis: characteristics of the young person and their family; ‘walking it together’– the centrality of relationships; ‘looking back/looking forward’– practice strategies; practitioner attributes and skills; ‘walking a fine line’– working with the families of adolescents; ‘walking with services’– effective inter‐agency work; and organizational context in effective child protection practice with adolescents. Key implications for practice and areas for further research were discussed.     

The Boric Acid Powder Treatment of Vulvovaginal Candidiasis

Abstract

This double blind comparison of fourteen daily intravaginal gelatin capsules containing 600 mg of boric acid powder versus identical capsules containing 100,000 units of nystatin diluted to volume with cornstarch found vulvovaginal candidiasis albicans cure rates for boric acid to be 92% seven to ten days after treatment and 72% at thirty days, whereas the nystatin cure rates were 64% at seven to ten days and 53% at thirty days. Speed of alleviation of signs and sumptoms was similar with both drugs. There were no untoward side effects, and cervical cytology was not affected. In vitro studies found boric acid to be fungistatic and its effectiveness to be unrelated to pH. Blood boron analyses indicated little absorption from the vagina and a half life of less than 12 hours. A 30% follow-up of 2,030 nonstudy patients revealed wet mount and symptom cure rates of 93% within two weeks and 88% within four weeks. Patient acceptance was better than with “messy” vaginal creams, and self-made boric acid powder capsules are inexpensive, 31¢ for fourteen, compared with costly, commonly prescribed medication.     

Feminism,globalization and the global justice and solidarity movement

The paper begins with a theoretical-political positioning regarding globaliz­ation, as a multidimensional phenomenon, loaded with power relations with unequal and ambivalent impacts producing dramatic exclusions but, at the same time, opening possibilities for profound changes in the gender order and in social subjectivities. The effects of globalization on social movements have also been multiple and ambivalent, producing fragmentation and particularization but at the same impelling new ways of articulation, more flexible and inclusive, as well as mobilizations at a global level oriented to ‘dispute’ its hegemonic contents and struggle for an alternative globalization. In the second part, the paper analyses the new dynamics of intervention of feminist movements that follow from this new reality. The Social World Forum is a privileged space for this analysis, due to the convergence of new tendencies and new ways of existence of feminisms, expressing the new conflicts and challenges faced by feminisms in the collective construction of alternative proposals towards globalization.