نتایج جستجو برای: biological parents
تعداد نتایج: 542644 فیلتر نتایج به سال:
A diallel analysis of eight bread wheat (Ttriticum aestivum L.) cultivars was conducted to determine genetic parameters and the type of genetic control for yield and yield components. The parents and their F1 hybrids were evaluated in a randomized complete block design with 3 replications. General and specific combining ability effects were estimated by the method 2 of the Griffings model I, an...
Objective This study investigates the determinants of parental involvement in diverse types stepfamilies. Background Most research has studied married stepfather families with resident children. also includes some more recent and emerging stepfamily (e.g., living-apart-together [LAT] stepfamilies) allowing for a simultaneous examination role biological relatedness, type relationship, residence,...
A diallel analysis of eight bread wheat (Ttriticum aestivum L.) cultivars was conducted to determine genetic parameters and the type of genetic control for yield and yield components. The parents and their F1 hybrids were evaluated in a randomized complete block design with 3 replications. General and specific combining ability effects were estimated by the method 2 of the Griffings model I, an...
hybrids were produced by crossing female caspian kutum rutilus frisii kutum with male grass carp ctenopharyngodon idella. the genome of eight larvae and parents were studied using microsatellite markers for genetic evaluation and verification. after dna extraction from parent fish and progeny, hybrid heritability of two loci was assessed using two pairs of microsatellite primers. hybridizie...
The role of parents-in-law according to Erik Erikson’s theory, has been analyzed in this paper. Erikson claims that a man develops throughout his whole life, solving subsequently appearing crises. The proper solution of these crises enables the achievement of integration. The results of research, carried out by Menelaos Apostolou, regarding the influence of parents on the choice of a son or dau...
CONTEXT Whether offspring of parents with bipolar disorder (BP) are at specifically high risk to develop BP and other psychiatric disorders has not been adequately studied. OBJECTIVE To evaluate lifetime prevalence and specificity of psychiatric disorders in offspring of parents with BP-I and BP-II. DESIGN Offspring aged 6 to 18 years who have parents with BP and community control subjects ...
Open adoption has both strong critics and staunch supporters. Most of the criticism and support is based on the philosophical or legal rights of members of the adoption triangle, but empirical evidence to support either position is sparse. This article reviews the arguments for and against openness, and the empirical evidence that supports or refutes these arguments. Research to date indicates ...
Previous research suggests that stepparenting can be stressful, although the mechanisms that contribute to the experience of parenting stress in stepfamilies are less clear. This study examines gender, marital quality, and views about gendered family roles as correlates of parenting stress among 310 stepmothers, stepfathers, and biological mothers and fathers. Findings suggest that stepparents,...
BACKGROUND The aim of the present study was to examine the internal structure and reliability of the Attachment Insecurity Screening Inventory (AISI) 6-12. The AISI 6-12 years is a parent-report questionnaire for assessing the parents' perspective on the quality of the attachment relationship with their child aged between 6 and 12 years. METHODS The sample consisted of 681 mothers and fathers...
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