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تعداد نتایج: 15565541 فیلتر نتایج به سال:
CONTEXT Physical activity has been shown to decrease the incidence of breast cancer, but the effect on recurrence or survival after a breast cancer diagnosis is not known. OBJECTIVE To determine whether physical activity among women with breast cancer decreases their risk of death from breast cancer compared with more sedentary women. DESIGN, SETTING, AND PARTICIPANTS Prospective observatio...
Extracurricular activities (ECA) help to nurture the core competencies of a doctor. This study assessed participation in ECA, barriers and attitudes towards participation, associated sociodemographic academic factors among medical students University Jaffna.This descriptive cross-sectional was carried out at Jaffna Medical Faculty. Stratified random sampling used ensuring proportionate represen...
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
background awareness of pharmacists about counterfeit drugs is necessary for health improvement in community. the purpose of the present study is to assess the knowledge and measure the professional attitude and practice of iranian pharmacist about counterfeit drugs. in august 2008, a knowledge, attitude and practice (kap) study was performed in a national sample of 794 pharmacists who particip...
The heterodimeric laminin receptor α6β4 integrin plays a central role in the promotion of tumor cell growth, invasion, and organotropic metastasis. As an overproduction of the integrin is often linked to a poor prognosis, the inhibition of integrin α6β4 binding to laminin is of high therapeutical interest. Here, we report on the combination of a cell-systematic evolution of ligands by exponenti...
Background: Hemangioma is a benign vascular tumor that shouldbe treated in problematic situations.Propranolol efficacy, target dose, range of age, duration of treatment and complications arenot conclusive for treatment of pediatric hemangioma. Our goal was to study efficacy and safety of propranolol for hemangiomatreating in children. Methods: A randomized, open label crossover trial with two ...
abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...
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