نتایج جستجو برای: moisture and calcium carbonate a meaningful difference have

تعداد نتایج: 20408498  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده علوم اجتماعی 1392

this study aims to investigate value conflicts between mothers and their daughters among families and influential factors on this conflict in yazd city. this study adopted a survey method and a questionnaire was used that its validity through construct validity (factor analysis) and its reliability by cronbach alpha were measured. the population of this study consists of all yazdian families th...

Journal: :محیط شناسی 0
کامبیز رستمی کارشناسی ارشد گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان علی اکبر محبوبی استاد گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان محمد رضا مصدقی استادیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان علی اکبر صفری سنجانی دانشیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان

transport of pathogenic bacteria has been recently considered a major source surface and subsurface water contaminations. soil could affect transport or filtering of bacteria depending on its physical and chemical properties. calcium carbonate and calcium sulfate are two important minerals of arid and semi-arid soils that their effect on bacteria transport has not been investigated, yet. in thi...

2004
A. Rubio A. Escudero

The aim of this work is to model the occurrence and intensity of calcium carbonate loss in calcareous forest soils under Mediterranean conditions. We have used 193 Spanish forest soils found on limestone parent material considered highly calcareous materials. This data set came from FOREDAF, a database containing 2200 complete soil profiles and all of them covered by forest stands (mainly domin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده ادبیات و علوم انسانی 1393

abstract over the past two decades, applied linguists and language teachers have shown a great deal of interest in genre-centered approaches , mainly because of pedagogic concerns . this has been due to the need to help non-native readers enhance their ability to understand academic and scientific texts. following swales’ (1981) works on genre analysis, studies of different sections of resear...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و زبانهای خارجی 1390

bserved by many teachers that most of the time, mumbling and searching for their intended words, students complain why they have forgotten the words they have learned in the previous semesters. they ask for some new ways that may help them to recall and apply the learned words more efficiently, since as they declare one of the most important skills in foreign language learning is having a g...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده ادبیات، زبانهای خارجی و تاریخ 1389

abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم اجتماعی 1389

چکیده در این پژوهش، رابطه بین سبک های مقابله ای با جرأت ورزی و پرخاشگری در دانشجویان دانشگاه بین المللی امام خمینی (ره) بررسی شد. نمونه مورد بررسی، شامل 200 نفر (121 زن و 79 مرد) از دانشجویان دانشگاه مورد نظر در دو جنس است که از طریق روش نمونه گیری خوشه ای تصادفی، انتخاب و به پرسشنامه های الگوهای پاسخ دهی بین فردی تونند و پرسشنامه سبک های مقابله ای اندلر و پارکر پاسخ دادند. همچنین از روش های ...

2008

Dr. Troels Ring, MD, Medical Department C, Aalborg Hospital, Aalborg (Denmark) Dear Sir, Two recent papers comparing calcium carbonate with calcium acetate both conclude that calcium acetate is the better phosphorus binder. In the paper by Caravaca et al. [1], the serum phosphate concentration was 1.80 ± 0.50 (SD) mmol/l while on calcium acetate, and 1.93 ± 0.48 on calcium carbonate in a parall...

2008

Dr. Troels Ring, MD, Medical Department C, Aalborg Hospital, Aalborg (Denmark) Dear Sir, Two recent papers comparing calcium carbonate with calcium acetate both conclude that calcium acetate is the better phosphorus binder. In the paper by Caravaca et al. [1], the serum phosphate concentration was 1.80 ± 0.50 (SD) mmol/l while on calcium acetate, and 1.93 ± 0.48 on calcium carbonate in a parall...

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