نتایج جستجو برای: inheritance and succession
تعداد نتایج: 16832854 فیلتر نتایج به سال:
Background and Aims: Retinitis pigmentosa (RP) is the most common form of inherited retinal degeneration, photoreceptors loss of which in the retina causes visual loss. The purpose of the present study was to determine patterns of inheritance in RP patients in Yazd to help the health professional for designing suitable laboratory testing for the high risk families. Materials and Methods: Thirt...
Classical old-field succession studies focused on vegetation changes after the abandonment of annual croplands or on succession after the elimination of cultivated crops. Perennial-crop-mediated succession, where fields are initially covered by perennial crops, reveals alternative aspects of old-field succession theories. We tested the validity of classical theories of old-field succession for ...
Species diversity commonly increases with succession and this relationship is an important justification for conserving large areas of old-growth habitats. However, species with different ecological roles respond differently to succession. We examined the relationship between a range of diversity measures and time since disturbance for boreal forest beetles collected over a 285 year forest chro...
Ecologists have documented the process of plant succession for centuries, yet the successional patterns exhibited by microbial communities have received relatively little attention. We examine recent work on microbial succession and show how, despite some key differences, studies of plant succession can serve as a template for understanding microbial succession. We divide the broad range of pat...
The main purpose of this study is providing a competency model for talent identification and succession in the National Gas Company. The research was conducted with a mixed approach. The statistical population in the quality department is the human resources managers of the gas company and 5 university professors and the sampling method is purposeful. In the quantitative phase, the statistical ...
ABSTRACT: DRASH Syndrome is a rare congenital disorder,and the triad of drash syndrome are progressive renal insufficiency ,male pseudohermaphroditism & Wilms tumor .All of the reported cases were sporadic and autosomal dominant inheritance was suspected in some references. We diagnosed a 32- month child with this syndrome in IRAN in 1993. He was presented with wilms tumor and also had male p...
The aim of this study was to investigate the effect of succession on human resource productivity and organizational performance by considering the mediating role of job satisfaction in Pars Oil Company. This research is a descriptive correlational study in terms of the method of collecting survey-field information, nature, and method. The research tool is a researcher-made questionnaire, the va...
THE CULTURES OF South Asia are largely gender stratified, characterized by patrilineal descent, patrilocal residence, inheritance and succession practices that exclude women, and hierarchical relations in which the patriarch or his relatives have authority over family members. Levels and patterns of female autonomy vary considerably within the region, however, and the question is why. Two argum...
Succession rules having a rational generating function are usually called rational succession rules. In this note we discuss some problems concerning rational succession rules, and determine a simple method to pass from a rational generating function to a rational succession rule, both defining the same number sequence. 2
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