A new generalization of the gamma distribution with application to negatively skewed survival data

We propose a three-parameter distribution referred to as the reflected- shifted-truncated gamma (RSTG) distribution to model negatively skewed data. Various properties of the proposed distribution are derived. The estimation of the model parameters is approached by maximum likelihood methods and the observed information matrix is derived. Monte Carlo simulations are performed to compare the performances of the proposed methods of estimation for both small and large samples. Using information theoretic criteria, we compare the RSTG distribution to the exponential, generalized F, generalized gamma, Gompertz, log-logistic, lognormal, Rayleigh, and Weibull distributions in three negatively skewed real datasets.     

Local Day Care Quality and Maternal Employment: Evidence From East and West Germany

By investigating how locally available early childhood education and care quality relates to maternal employment choices, this study extends the literature, which mostly has focused on the importance of day care availability or costs. The authors provide differentiated analyses by the youngest child's age and for West and East Germany to examine moderating influences, such as work‐care cultures, in a market with strongly state‐subsidized provision and near‐universal participation of preschool children. The empirical analysis linked the Socio‐Economic Panel and the Families in Germany Study for 2010 and 2011 (N = 3,301 mothers) with regional structural quality data and applied multivariate regression models. In East Germany, mothers with a child under age 3 years who lived in districts with smaller day care groups were more likely to be employed and to extend their work hours. For mothers in West Germany and those with older children, day care quality was not significantly related to employment.     

Technology‐Based Communication and the Development of Interpersonal Competencies Within Adolescent Romantic Relationships: A Preliminary Investigation

This study investigated longitudinal associations between adolescents’ technology‐based communication and the development of interpersonal competencies within romantic relationships. A school‐based sample of 487 adolescents (58% girls; M_age = 14.1) participated at two time points, one year apart. Participants reported (1) proportions of daily communication with romantic partners via traditional modes (in person, on the phone) versus technological modes (text messaging, social networking sites) and (2) competence in the romantic relationship skill domains of negative assertion and conflict management. Results of cross‐lagged panel models indicated that adolescents who engaged in greater proportions of technology‐based communication with romantic partners reported lower levels of interpersonal competencies one year later, but not vice versa; associations were particularly strong for boys.     

State-Level HIV Criminalization Laws: Social Construction of Target Populations?

Applying Schneider and Ingram’s social constructionist framework that places people living with HIV (PLWH) in the intersection of both minimal power and negative social construction, this study investigates whether HIV criminalization laws are more likely to be present in states that have a relatively larger percentage of socially marginalized populations. A database was assembled of state-level variables related to HIV criminalization laws and indicators of social marginalization. Analyses show that states with HIV criminalization laws have relatively larger African American populations. Future research is needed to further clarify the racial component of HIV criminalization.     

Pathway to Financial Success: Autonomy Through Financial Education in India

ABSTRACT

This study evaluates attitudinal outcome of financial education workshops on the financial autonomy of the participants (homemakers) in the state of Gujarat, India. A series of financial education workshops were conducted with 300 female homemakers. A pretest and follow-up (after 3 months) survey design was used to assess changes. The survey identified 3 types of autonomy outcomes (reflexive, emotional, and functional) using 15 variables. Data were analyzed using a paired t test, and significant results were obtained between the pretest and follow-up surveys. Specific findings may help financial education providers to design and implement such programs more effectively and may provide guidelines to assess their effect. Directions for future research are suggested.     

Urbanization decreases the extent and variety of leaf herbivory for native canopy tree species Quercus rubra,Quercus alba,and Acer saccharum

Urban Ecosystems - The extent to which urban trees can support associated biodiversity and provide ecosystem services depends on how urbanization affects the relationship between plants and the...     

A rapid systematic review on the association between childhood physical and sexual abuse and illicit drug use among males

This paper aims to review studies in relation to the association between childhood physical (CPA) and sexual abuse (CSA) and illicit drug use among the male clinical and general community populations using a systematic approach. Primary studies were identified using online databases which were searched comprehensively using a set of pre‐determined search criteria and terms. Other sources included expert contact and the reference list of a relevant review. Associations between exposure (CPA/CSA) and outcome (illicit drug use) were considered with regards to an array of factors. A total of 5012 references were initially identified out of which 18 studies met the necessary criteria for reviewing. The review demonstrates tentative support for factors such as earlier drug initiation, intravenous drug use and greater frequency of use among some of the samples. It also demonstrates the difficulties involved in drawing conclusions due to the complex and multifaceted nature of drug use and the variability in the quality of the research available in this area. Limitations of the current review are highlighted and recommendations offered for future research with consideration given to practical implications in clinical and forensic settings. Copyright © 2010 John Wiley & Sons, Ltd.     

Explaining Korean Welfare State Development with New Empirical Data and Methods

Selecting Korea as one of the conceptually classified East Asian welfare states, this paper aims to empirically investigate the determinants of Korean welfare state development. Linking the research question with the lively discussion on welfare state in Korea that is taking place domestically, this paper also aims to examine whether the development of the Korean welfare state has been influenced by politics of the left or by industrialization with functionalistic perspectives. We conduct an analysis first by regression analysis and then fuzzy‐set qualitative comparative analysis (fsQCA) to examine the conditions of such development. A Korean Welfare State Dataset (KWSD) has been newly included in the Comparative Welfare State Dataset (CWSD) and we used this new dataset for our empirical analysis. Our empirical findings suggest that, at least up to the current point, factors other than economic development or industrialization are not robust enough to make a claim of a take‐off of the Korean welfare state from its developmental stage. However, we also notice the influence of the left government and suggest that it is legitimate to expect an innovative change in the path of the Korean welfare state once the power resource theory is applicable.