This study investigates the effect of competition between individuals on population dynamics when they compete for different resources during different seasons or during different growth stages. Individuals are assumed to compete for a single resource during each of these periods according to one of the following competition types: scramble, contest, or an intermediate between the two. The effe...

The aim of the present study was to assess the frequencies of angiotensin I-converting enzyme (ACE; OMIM: 106180) and methylenetetrahydrofolate reductase (MTHFR; OMIM: 607093) polymorphisms in the Algerian population to further facilitate investigations on possible associations with various pathologies. The study was carried out on 146 apparently healthy individuals (65 males, 81 females) who w...

objective(s) primary or adult type hypolactasia, the most common enzyme deficiency in the world, is due to reduced lactase activity in the intestinal cell after weaning. lactase non-persistence is inherited as an autosomal recessive trait. a dna variant, single nucleotide polymorphism c/t−13910 which is located on 13910 base pairs (bp) upstream of the lactase gene (lct) at chromosome 2 has been...

introduction: in order to make a dimensional proportion between human and equipment or environment, anthropometric data bank is essential. anthropometry has an important role in industrial management and ergonomic design. this information is needed to be collected regularly in every society. the purpose of this study was to determine arm length to height ratio according to gender in adults, bet...

conclusions our data provided information on the prevalence and types of intraosseous lesions among an iranian population. this study provided baseline information to help in designing and programming procedures in health care centers in every community so that preventive therapeutic measures can be adopted. patients and methods this cross-sectional descriptive analytical study was carried out ...

recent advances in dna based technology have made available a wide range of molecular characteristics for taxonomic and systematic studies of malaria vectors. one region of the anopheline mosquito genome that has received particular attention is the ribosomal dna. in this study, mosquitoes of the anopheles superpictus collected from a wide geographical distribution of iran were investigated for...

In order to evaluate the possible correlation between the tree density and the human population density, the forested area in Nav Asalem district located in Guilan Province was selected. The descriptors of tree number and basal area per hectare as well as the stand density index were used to determine the tree density, which was conducted from a 2014 forest inventory including 62 cluster (558 p...

The genetic polymorphism and phenotypic variation are key in ecology evolution. morphological variability of the contour fish otoliths has been extensively used for delimitation stocks. These studies conventionally based on average phenotype using elliptic Fourier analysis lineal discriminant as classifier. Considering new analytical options, such wavelet transform non-parametric algorithms, we...