Molecular technologies have made feasible large-scale studies of genetic parentage in nature by permitting the genotypic examination of hundreds or thousands of progeny. One common goal of such studies is to estimate the true number of unshared parents who contributed to a large half-sib progeny array. Here we introduce computer programs designed to count the number of gametotypes contributed b...

How have recent changes in U.S. family structure affected the cognitive, social, and emotional well-being of the nation's children? Paul Amato examines the effects of family formation on children and evaluates whether current marriage-promotion programs are likely to meet children's needs. Amato begins by investigating how children in households with both biological parents differ from children...

BACKGROUND The desired (therapeutic) and undesired (side) effects of methylphenidate might have underlying correlations. The aim of this study was to explore the strength and the possible sources of these correlations. METHODS One hundred and fifty-seven children with ADHD (6-12 years) were administered placebo and methylphenidate (0.5 mg/kg in a divided b.i.d. dose), each for a one-week peri...

BACKGROUND Parents who lose a child by suicide have elevated risks of depression. No clinical prediction tools exist to identify which suicide-bereaved parents will be particularly vulnerable; we aimed to create a prediction model for long-term depression for this purpose. METHOD During 2009 and 2010 we collected data using a nationwide study-specific questionnaire among parents in Sweden who...

OBJECTIVE This research examined demographic and functional characteristics of parents of children with sexual behavior problems. METHOD Families of 72 children with sexual behavior problems completed a structured interview and several psychometric devices at intake into a treatment outcome study. RESULTS As a group, caregivers manifested signs of a high level of life stress across a wide a...

M biological, psychological, and social changes characterize the phase in the life span known as adolescence. These changes include the onset of puberty, an increased self­identity, the initia­ tion of dating, and the development of intimate relation­ ships. Early theories of adolescent development described this period as one of “storm and stress” with regard to parent­child relations (see, fo...

Adoption of a child is the transfer from biological parents to adoptive parents, where responsibility also shifts person who adopted him. However, there are discrepancies in adoption process as happened Tanjung Medan Village area, South Labuhanbatu Regency, this case people adopt many 14 families, 5 families take action terminate kinship relationship between child's parents. with his son. This ...

OBJECTIVE Frequency of heavy alcohol use among adolescents is examined by family structure and propensity toward heavy alcohol use on the individual level, and by alcohol availability and drinking patterns among adolescents on the societal level. The analysis includes direct effects and moderating effects of societal-level indicators on individual-level associations between family structure and...

In the framework of biological control, the selection of effective natural enemies determines the final pest control. Thus, the genetic improvement of biocontrol agents could enhance the efficiency of biocontrol programs. Although promising, this approach has rarely been applied in this field. At the intraspecific level, hybridization between divergent populations of biocontrol agents is expect...