نتایج جستجو برای: permanent
تعداد نتایج: 62269 فیلتر نتایج به سال:
Background and purpose: Lead is a heavy metal, which has been replaced by calcium hydroxyapatite in tooth enamel. It is considered as an index of pollution assessment. Zanjan province is potential area for lead element accumulation. This study aimed at comparing the amount of lead in human deciduous and permanent teeth in order to evaluate and determine the risk of lead pollution in urban and r...
Introduction: Neonatal hypothyroidism, a preventable cause of mental retardation, has a high prevalence in Iran. Considering the high prevalence of the transient form of this disease, which recovers within 4-6 months after birth, it is important to determine factors that can differentiate between permanent and transient hypothyroidism in Iran. Materials and Methods: In this retrospective cohort...
In the present work, an integrated method of pole shape design optimization for reduction of torque pulsation components in permanent magnet synchronous motors is developed. A progressive design process is presented to find feasible optimal shapes. This method is applied on the pole shape optimization of two prototype permanent magnet synchronous motors, i.e., 4-poles/6-slots and 4-poles-12slots.
klinefelter syndrome includes a group of chromosomal disorders with at least one additional x chromosome in male karyotype (46,xy). up to now, different dental manifestations such as taurodontism, congenital absence of permanent teeth, shovel incisors, occlusal anomalies and increased permanent tooth size have been reported. a case of klinefelter syndrome with very rare dental feature...
objective: morphological changes of ca1 neurons in rat hippocampus after transient and permanent focal cerebral ischemia were studied to clarify the nature of postischemic cell death in the subfield. materials and methods: male adult rats were divided into 3 groups: control (shamoperated), transient ischemic group (30 minutes of mcao followed by 48 hours of reperfusion), and permanent ischemic ...
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