نتایج جستجو برای: especially blundell and bond 2000
تعداد نتایج: 16865973 فیلتر نتایج به سال:
Background and Aim: Sodium hypochlorite can remove the organic phase of the demineralized dentin and it produces direct resin bonding with hydroxyapatite crystals. Therefore, the hydrolytic degradation of collagen fibrils which might affect the bonding durability is removed. The aim of this study was to evaluate the effect of collagen fibrils removal by 10% NaOCl on dentin shear bond strength o...
statement of problem: the bond strength between restorative material and tooth structure is so important for conduction of durable restoration. considering the recent attention to low shrinkage composite resins, evaluation of micro tensile bond strength of these materials would be valuable. objectives: to compare the microtensile bond strength of silorane composite resin (filtek p90) with the c...
چکیده: برای بررسی تنوع گونه ای کنه های بالاخانواده های tetranychoidea و raphignathoideaباغات و مزارع شهرستان های بناب و ملکان ، نمونه برداری هایی در فصل زراعی سال 1389 از خاک و اندام های هوایی صورت گرفت. در این مطالعه تعداد 2000 اسلاید میکروسکوپی از مجموع نمونه های جمع آوری شد و در مجموع 30 گونه از 15 جنس متعلق به 6 خانواده شناسایی گردید که از بین این تعداد 3 گونه برای فون کل دنیا و 2 گونه برا...
this research study aimed to investigate the relationship between field-dependence/independence cognitive style and vocabulary learning strategies among iranian efl learners. ninety participants majoring in english translation at arak university were chosen. the participants were classified into two groups of field-dependent and independent based on the results of group embedded figure test (ge...
Background and Aims: Composite restorative materials and dental adhesives are usually cured with light sources. The light direction may influence the bond strength of dental adhesives. The aim of this study was to evaluate the effect of light direction on the microtensile bond strength of fifth and sixth generation dental adhesives.Materials and Methods: Prime & Bond NT and Clearfil SE bond wer...
Reactions that form a C-C bond make up a foundational pillar of synthetic organic chemistry. In addition, organocatalysis has emerged as an easy, environmentally-friendly way to promote this type of bond formation. Since around 2000, organocatalysts have been used in a variety of C-C bond-forming reactions including Michael and aldol additions, Mannich-type reactions, and Diels-Alder reactions,...
This article reports the application of a recently proposed formalism of domain averaged Fermi holes to the problem of the localization of electron pairs in electron localization function (ELF) domains and its possible implications for the electron pair model of chemical bond. The main focus was on the systems, such as H2O or N2, in which the "unphysical" population of ELF domains makes the par...
هدف این پژوهش انجام بررسی فرهنگ درون سازمان می باشد که ظاهرا از مدیریت دانش موثر حمایت می کند . هدف این پژوهش شناسایی عوامل کلیدی موفقیت می باشد که ظاهرا بهترین حمایت را نسبت به جریان و مدیریت دانش درون سازمان فراهم می کند ( نپ و یو ، 1999 ، ص : 16 ) . هدف چنین پژوهشی توانایی بیشتر گزینه هایی که برای ارتقای مدیریت موثر جریان دانش در سازمان در دسترس هستند می باشد . هنوز دانشمندان ، متخصصان و دیگ...
Introduction This paper primarily examines the advantages of bond mutual funds over portfolios of directly held bonds for both institutional and individual investors. First, we review the structural advantages of bond mutual funds, which, compared with separately managed and laddered portfolios of individual bonds, generally provide greater diversification; more regular cash flows that promote ...
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