this study investigated the effect of using visual aids, semantic elaboration, and visual aids plus semantic elaboration on the iranian efl learners' vocabulary learning. to conduct the study, the researchers assigned 49 elementary learners to three homogeneous groups according to their proficiency level. then, a pre-test of paribakht and wesche's vocabulary knowledge scale was given ...

It has been shown that maternal hyperthyroidism can affects on neonatal outcomes such as spontaneous abortion, intrauterine growth retardation. The aim of this study was to investigate the influence of hyperthyroidism on formation of cerebellar cortical layers in the rat embryos. Thirty Sprague-Dawley female sexually mature rats weighting 200 ± 20 g were used in the study. Female rats were rand...

background: in recent years, concerns have been raised about human reproductive disorders. caffeine consumption is increasing by the world’s population and there is a relationship between caffeine intake and adverse reproductive outcomes. the aim of this study was to evaluate the effects of caffeine on implantation sites, number of live births, birth weight, crown-rump length (crl) and abnormal...

Introduction: N- nitro-L-arginine methyl ester (L-NAME), one of the L-arginine analogs, has been specified as an inhibitor of nitric oxide synthase ( NOS).Nitric oxide synthase is an enzyme which leads to nitric oxide synthesis. Since nitric oxide has been known as a pain mediator, it can be said that L-NAME can decrease and relieve pain. In this research the effect of L-NAME on morphine antino...

This study aims to investigate the effectiveness of cognitive strategy instruction on English reading comprehension of Iranian advanced students. A total of 60 participants took part in the present study. The participants (n=20) in one experimental group were provided with the cognitive training condition only, while the participants (n=20) in the other experimental group were exposed to both a...

BACKGROUND Endothelin-1 (ET-1) is an endothelium-derived peptide that constricts coronary vessels through stimulation of the ET-A and ET-B receptors. Experimental porcine hypercholesterolemia is associated with impaired coronary endothelial function and elevated ET-1 concentrations. This study was designed to test the hypothesis that chronic endothelin receptor antagonism preserves coronary end...

BACKGROUND Levo-tetrahydropalmatine (L-THP) is a tetrahydro protoberberine isoquinoline alkaloid obtained from the genera Stephania and Corydalis. In the present research, we evaluated the effects of L-THP on the progression of aortic aneurysms (AAs) in experimental rats induced with perfusion of elastase. MATERIAL AND METHODS Thirty-six Sprague-Dawley rats were divided into sham-operated, cont...

Objective(s): The study is aimed to elucidate the impact of antioxidant, anti-inflammatory and antifibrosis properties of Lactobacillus acidophilus (L. acidophilus) on liver and colon in ethephon treated rats through measuring Pro- inflammatory cytokines, oxidative stress index, lysosomal cathepsin-D enzyme activity and fibrosis markers.Materials and ...

from general and regional anesthesia. the incidence of this complication is reported to be 40-70% among patients. pas occurrence depends on various factors such as age, gender and drugs used in anesthesia and surgery time. granisetron is a serotonin 5ht3 receptor antagonist. beneficial effects of such drugs have been shown in a limited number of studies. in this study, preventive effects of gra...