In order to investigate the seasonal changes and the possible role of the free polyamines in the leaves and stems on the alternate bearing habit of the ‘Kinnow’ mandarin (Citrus reticulata Blanco) trees, a comparative study was conducted to analyze the levels of free polyamines  (putrescine, spermidine and spermine) in the leaves and stems tissues of “on” and &ldquo...

BACKGROUND AND AIMS Perceived parental permissiveness toward gambling may relate to adolescents' engagement in various risky behaviors. To examine this possibility, we analyzed data from a high-school based risk-behavior survey to assess relationships between perceived parental permissiveness toward gambling and adolescent gambling behavior, substance use and related problems. We also evaluated...

Understanding hybridization is important for practical reasons, as the presence of hybrid trees in seed stands can influence success natural regeneration and reforestation. Hybridization creates new gene combinations, which promote or enhance adaptation to changing environments. In present research, we aimed, first time, evaluate compare growth survival 541 putative seedlings 455 pure parental ...

objective: parental self-efficacy is associated with increasing mental health in children. there is a paucity of research in iran on the role of parental self-efficacy in increasing mental health status of children. in this preliminary study, we studied the effectiveness of the world health organization international child development program (2002) for children aged 3 years and younger in incr...

background and objectives: this study was designed to investigate the association between parental behavior and the dietary intake of tehranian preschool children aged 2-6 years. materials and methods: in a cross-sectional study conducted on 310 children aged 2-6 years from the kindergartens of 22 districts of tehran, a qualitative validated 85-item food frequency questionnaire was completed by...

in this study the clinical and epidemiological characteristics of congenital adrenal hyperplasia were evaluated prospectively in 47 patients admitted in imam reza hospital in mashhad during a 4 year period. 21-hydroxylase deficiency was present in 42 patients (89.3%), the simple virilizing form in 6 and the salt-losing form in 36 of them. 11b hydroxylase deficiency was present in 5 patients (10...

W~SENDEN, B. D. 1993. Female convict cichlids adjust gonadal investment in current reproduction in response to relative risk of brood predation. Can. J. Zool. 71: 252 -256. Parental care theory predicts that investment in current reproduction should be increased when the prospects of success in current reproductive effort are relatively high, and reduced when they are poor relative to expected ...

Objectives To identify whether psychiatric disturbance in parentally bereaved children and surviving parents is related to service provision. Design Prospective case-control study. Setting Two adjacent outer London health authorities. Participants 45 bereaved families with children aged 2 to 16 years. Main outcome measures Psychological disturbance in parentally bereaved children and surviving ...