saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

تغییر در ساختار پروتئین های بدن منجر به تولید آنتی بادی علیه آنها می شود. احتمالا ایجاد پلی مرفیسم در ژن پراکسیداز تیروئیدی (tpo) و تغییر ساختار آن باعث تولید آنتی بادی ضد پراکسیداز تیروئیدی می شود. اختلال درآنزیمtpo می تواند یکی از دلایل اصلی بروز بیماری کم کاری تیروئید باشد که شیوع و گسترش این بیماری، ما را بر آن داشت که در این مطالعه به بررسی ارتباط پلی مرفیسم a1936/g اگزون11و t2229/c اگزون1...

foreign policy takes root from complicated matters. however, this issue may be more truth about armenia. although the new government of armenia is less than 20 years, people of this territory are the first ones who officially accepted christianity. in very past times, these people were a part of great emperors like iran, rome, and byzantium.armenia is regarded as a nation with a privileged hist...

until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...

this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

مقدمه : سقط شایع ترین عارضه بارداری بوده و در ? 15 حاملگی ها رخ می دهد . اختلالات ایمنولوژیک یکی از علل شایع سقط می باشد که خود شامل فاکتورهای آلوایمیون و اتوایمیون می باشد . با توجه به نقش آنتی بادی ها ضد تیروئیدی از جمله anti-tpo به عنوان یک فاکتور اتوایمیون در ایجاد سقط های خودبه خودی ومکرر ، در این مطالعه به بررسی ارتباط بین این دو می پردازیم . اهداف : هدف کلی : بررسی ارتباط بین سطح anti-...