objectives: the purpose of this study was to compare spatio-temporal gait parameters between elderly and young male subjects. methods & materials: 57 able-bodied elderly (72±5.5 years) and 57 healthy young (25±8.5 years) subjects participated in this study. a four segment model consist of trunk, hip, shank, and foot with 10 reflective markers were used to define lower limbs. kinematic data coll...

The relationship between the immunoglobulin (Ig) nucleotide sequence and the ability of a B cell to develop into a malignant cell was studied in a subset of B cells, B-1 cells. B-1 cells become malignant in chronic lymphocytic leukemia (CLL) and are responsible for the production of "natural autoanti‌bodies". The autoimmune NZB mouse has been known as a human malignancy and CLL model, be‌cause ...

Abstract The rate of penetration (ROP) optimization is one the most important factors in improving drilling efficiency, especially downturn time oil prices. This process crucial well planning and exploration phases, where selection bits parameters has a significant impact on total cost operation. Thus, best are critical. Optimization ROP difficult due to complexity relationship between variable...

Biotransformation of benzo[a]pyrene (BaP) in the presence of microsomal fractions derived from liver and epiderm of adult and weanling rats was examined. The aim of this study was to evaluate the effect of age on the capacity of two organs in transformation of BaP. Subcellular fractions were prepared from skin and liver by ultracentrifugation and were used as the source of BaP metabolizing enzy...

the aim of the present study was to clarify if old n-mri rat, a strain which is easily available in iran and cheap to maintain, is a suitable alternative to those previously reported. in this model, we compared three quantifiable parameters between old and young rats: biochemically, involving measurement of differences in the lipid profile. histologically, the differences of the thickness of th...

Social trust is one of the important factors of the social relations, the social order and also the social capital. It also possesses an effective role in the development of the society. Its increase and decrease will influence on the primary groups and institutions to the entire society. Social trust is influenced by various factors and variables. The change in these factors will change the ex...

abstract background: to investigate the predisposing and precipitating risk factors for suicide ideations and suicide attempts in young and adolescent females, we tried to introduce a holistic model of suicidal behavior in young and adolescent girls. methods: this study is based on the survey studies and was cross-sectional. considering high rates of suicide attempts in provinces of iran, three...