EFFECT OF DOUM (Hyphaene thebaica)® ON RESPONSE OF RABBIT SPERMATOZOA TO HYPO-OSMOTIC SWOLLEN TEST

Potential Superoxide Anion Radical Scavenging Activity of Doum Palm (Hyphaene thebaica L.) Leaves Extract

The antioxidant activity of the aqueous ethanolic extract of Doum leaves, Hyphaene thebaica L. (Palmae), was studied. Data obtained showed that the extract scavenged superoxide anion radicals (IC50=1602 μg/ml) in a dose dependant manner using xanthine/hypoxanthine oxidase assay. Four major flvonoidal compounds were identified by LC/SEI as; Quercetin glucoside, Kaempferol rhamnoglucoside, Dimeth...

Evaluating the Functional Status of Spermatozoa in Smokers Using Hypo-osmotic Swelling Test

Establishment of an optimal hypo-osmotic swelling test by examining single spermatozoa in four different hypo-osmotic solutions.

In order to find an optimal hypo-osmotic swelling test (HOST) and to identify viable sperm cells from patients with asthenozoospermia for intracytoplasmic sperm injection (ICSI), we tested single motile and non-motile spermatozoa in four hypo-osmotic solutions by micromanipulation. The four solutions were: A, H2O; B, 50 mOsm NaCl; C, 150 mOsm NaCl and D, 150 mOsm sodium citrate and fructose. Eo...

the washback effect of iranian schoolleaving test of english on students learning

هدف از ای پایان نامه بررسی تا ثیر ازمون نهایی زبان انگلیسی سال سوم دبیرستان برروی یادگیری دانش اموزان ایرانی است. هدف اشلی این مطالعه بررسی خود این ازمون و تا ثیر ان برروی یادگیری دانش اموزان است. برای رسیدن به این هدف شیوه های تحقیقاتی مختلفی برای جمع اوری و تحلیل داده ها به کار برده شده است. ابزارهای اصلی این تحقیق شامل مصاحبه با دانش اموزان دختر سال سوم (10 نفر) و همچنین مشاهده ی 6 کلاس زبان...

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...