نتایج جستجو برای: preparation methods

تعداد نتایج: 2016548  

2013
Muhammad Amin

Electrical insulation materials are advancing rapidly due to several advantages including light weight, better performance in polluted environment and reduced installation cost. In polymeric micro-composites, enhancing one property of the insulator may affect adversely on the other desired properties. This problem can be addressed practically with the invention of nanocomposites. This article p...

Journal: :Plant physiology 1987
Z Zhao X Hu C W Ross

To prepare tissues for analysis of NAD(+), NADH, NADP(+), and NADPH, common practice is to freeze samples in liquid nitrogen, often followed by freeze-drying, before extraction in HCl or NaOH. With cucumber (Cucumis sativus L.) cotyledons, prefreezing in liquid nitrogen or slower freezing to -20 degrees C yielded substantially lower values for NADH and NADPH than obtained from samples homogeniz...

2011
Ram Prasad Pratichi Singh

In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of commercial importance and national program related to defence and space research but also finds applications in the most concerned problem worldwide i.e. ...

Journal: :Chemical reviews 2014
Justin J Wilson Stephen J Lippard

The demonstration in the 1960's that cis-diamminedichloroplatinum(II), or cisplatin, inhibits cellular division of Escherichia coli1 led to the subsequent discovery that this simple coordination compound is also an effective antitumor agent in mouse models.2 Subsequent studies validated cisplatin as an effective anticancer agent in humans as well,3–7 and FDA approval of cisplatin for the treatm...

2010
Jothikumar Narayanan Jan Vinjé Theresa Cromeans

OBJECTIVES: The goal of this project was to evaluate nucleic acid extraction techniques to detect different microbial pathogens (e.g., pathogenic viruses, bacteria, bacterial spores, and protozoan parasites) in drinking water using molecular techniques. While numerous nucleic acid extraction kits are commercially available, the composition of these kits is largely proprietary, making it difficu...

Journal: :Forensic science review 1991
B Caddy F P Smith J Macy

Forensic scientists use various techniques to separate accelerants from fire debris samples before instrumental identification of added fuels. Among the choices available, traditional micro-distillation, steam distillation, vacuum distillation, headspace, heated headspace, and several vapor adsorption/desorption methods provide various advantages and disadvantages. This communication reviews th...

Journal: :BioTechniques 2006
Henriette O'Geen Charles M Nicolet Kim Blahnik Roland Green Peggy J Farnham

A single chromatin immunoprecipitation (ChIP) sample does not provide enough DNA for hybridization to a genomic tiling array. A commonly used technique for amplifying the DNA obtained from ChIP assays is ligation-mediated PCR (LM-PCR). However; using this amplification method, we could not identify Oct4 binding sites on genomic tiling arrays representing 1% of the human genome (ENCODE arrays). ...

Journal: :journal of dentistry, shiraz university of medical sciences 0
ali asghar alavi dept. operative dentistry and biomaterials of research center, school of dentistry, shiraz university of medical sciences, shiraz, iran. zeinab behroozi dept. of orthodontic, school of dentistry, yasuj university of medical sciences, yasuj, iran. farid nik eghbal dept. operative dentistry, school of dentistry, yasuj university of medical sciences, yasuj , iran.

statement of the problem: porcelain laminate veneer is an esthetic restoration used as an alternative to full veneer crowns and requires minimal tooth preparation. in restoration with porcelain laminate veneers, both the longevity of the laminate and conservation of the sound tooth structure are imperative. purpose: the present study aimed to investigate the shear bond strength of porcelain lam...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1390

teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1380

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