نتایج جستجو برای: iron archaeometallurgy

تعداد نتایج: 142538  

Journal: :Journal of Archaeological Science: Reports 2021

This Journal of Archaeological Science: Reports Special Issue was prompted by the organisers Second International Conference on Archaeometallurgy (ICA II), which held at Lettres Sorbonne Universite and Ecole Normale Superieure de Cachan in Paris, Plateforme experimentale Melle (CNRS, Institut Recherche sur les Archeomateriaux) Poitou region, France, from 25th September to 1st October 2019. The ...

2003
A. Hammel C. White S. Pfeiffer D. Miller

Mining, as defined by Stocks and Down is the ‘removal of minerals from their natural geological environment and their transport to the point of processing or use1’. As so defined mining has, in one form or another, been providing essential raw materials for tens of thousands of years. Although metal ores were first mined in southern Africa (south of 15°S) approximately 2 000 years ago, minerals...

Journal: :journal of research in medical sciences 0
nazanin abbaspour richard hurrell roya kelishadi

it is well-known that deficiency or over exposure to various elements has noticeable effects on human health. the effect of an element is determined by several characteristics, including absorption, metabolism, and degree of interaction with physiological processes. iron is an essential element for almost all living organisms as it participates in a wide variety of metabolic processes, includin...

Journal: :caspian journal of internal medicine 0
haydeh alaoddolehei haydeh samiei farahnaz sadighian narges kalantari

background: pregnant women take iron supplements in order to prevent iron deficiency anemia which may have undesirable effects for both the mother and fetus. this study aimed to compare the daily and intermittent dose of iron supplementation in blood and iron indices in healthy pregnant women.methods: in this clinical trial study, 145 healthy pregnant women were selected with hbx0511g%. the par...

Journal: :caspian journal of internal medicine 0
durdi qujeq maryam sadogh shahreyar savadkohi

background: it is clear that helicobacter pylori (h. pylori) is a spiral bacterium that infects human and causes gastritis and peptic ulcer. the aim of this study was to determine the relationship between h .pylori infection and the iron status of the body. methods: this study was conducted in shahid beheshti hospital of babol university of medical sciences, babol, iran from august 2007 to july...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده علوم پایه 1393

اشریشیا کلای یوروپاتوژنیک، عامل بیماری¬زای اصلی در عفونت¬های مجاری ادراری است. این سویه¬ها فاکتورهای ویرولانس مهمی از جمله آدهسین¬ها، سیدروفورها و توکسین¬ها را حمل می¬کنند که به پیشرفت بیماری عفونت ادراری کمک می¬کند. اولین قدم برای مقابله و مهار این پاتوژن شناسایی فاکتورهای مهم ویرلانس آن است. مطالعات فیلوژنتیک نشان داده است که این باکتری¬ها در چهار گروه a، b1، b2 و d قرار می¬گیرند و نوع گروه ف...

Journal: :journal of research in medical sciences 0
po-jen hsiao jenq-shyong chan kun-lin wu wen-fang chiang jing-shu huang chia-chao wu

background: it is intriguing and imperative that the comparison of the iron preparations in hemodialysis (hd) patients. th is study aimed to observe the short-term effi cacy of parenteral iron sucrose and ferric chloride in hd patients. materials and methods: this was a consecutive 10-week single-blind study in taiwan. an intravenous iron supplement of 100 mg/week was administered as an infusio...

Journal: :research in pharmaceutical sciences 0
l saghaie rc hider

transfusion-dependent patients such as those suffering from β-thalassaemia develop a fatal secondary haemosiderosis and consequently a selective iron chelator must be used to relieve such iron overload. 3- hydroxypyridin-4-ones are selective for iron(iii) under most biological conditions, but unlike desferrioxamine, are efficiently absorbed when administered orally. in this study, the synthesis...

Journal: :research in pharmaceutical sciences 0
l. saghaie m. mirmohammad sadeghi a. nikazma

iron overload is a serious clinical condition which can be largely prevented by the use of iron-specific chelating agents. in this study, the synthesis and determination of partition coefficients (kpart) of a range of n-alkyl hydroxypyridinones, as orally active iron chelators, are described. synthesis of n-aryl hydroxypyridinones was achieved via a single step synthetic pathway. in this method...

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