نتایج جستجو برای: displacement chromatography

تعداد نتایج: 161832  

2014
Nanying Shentu Qing Li Xiong Li Renyuan Tong Nankai Shentu Guoqing Jiang Guohua Qiu

Underground displacement monitoring is an effective method to explore deep into rock and soil masses for execution of subsurface displacement measurements. It is not only an important means of geological hazards prediction and forecasting, but also a forefront, hot and sophisticated subject in current geological disaster monitoring. In previous research, the authors had designed a novel electro...

Journal: :journal of dentistry, tehran university of medical sciences 0
mohsen dalband assistant professor, dental research center, department of oral and maxillofacial surgery, faculty of dentistry, hamadan university of medical sciences, hamadan, iran jamal kashani phd in mechanical engineering hadi hashemzehi assistant professor, department of oral and maxillofacial surgery, faculty of dentistry, zahedan university of medical sciences, zahedan, iran

o bjectives: the aim of this study was to investigate the displacement and stress distri- bution during surgically assisted rapid maxillary expansion under different surgical conditions with tooth- and bone-borne devices. materials and methods: three-dimensional (3d) finite element model of a maxilla was constructed and an expansion force of 100 n was applied to the left and right molars and pr...

Journal: :Acta chimica Slovenica 2014
Maryam Saeidifar Hassan Mansouri-Torshizi Y Palizdar M Eslami-Moghaddam Adeleh Divsalar Ali Akbar Saboury

A new anionic 8-hydroxyquinolinatopalladate(II) complex with malonate has been synthesized and characterized by elemental analysis, conductivity, FT-IR, UV-Vis and 1H NMR techniques to enhance the development of potential anticancer agents. Cytotoxicity was determined against the human leukemia cells, molt, by MTT assay. The novel antitumor Pd(II) complex was evaluated for its binding to calf t...

2014
Shimoga D. Ganesh Vasantakumar K. Pai Mahadevappa Y. Kariduraganavar Madhu B. Jayanna

Poly(1,3,4-oxadiazole-ether) with reactive carboxylic acid pendants was synthesized from solution polymerization via nucleophilic displacement polycondensation among 2,5-bis(4-fluorophenyl)-1,3,4-oxadiazole (BFPOx) and 4,4'-bis(4-hydroxyphenyl) valeric acid (BHPA). Without altering the polymeric segments, benzimidazole modified poly(1,3,4-oxadiazole-ether)s were prepared by varying stoichiometr...

Journal: :Nucleic acids research 1998
Gisela Schnapp Hans-Peter Rodi Wolfgang J. Rettig Andreas Schnapp Klaus Damm

Human telomerase is a ribonucleoprotein (RNP) enzyme, comprising protein components and an RNA template that catalyses telomere elongation through the addition of TTAGGG repeats. Telomerase function has been implicated in aging and cancer cell immortalization. We report a rapid and efficient one-step purification protocol to obtain highly active telomerase from human cells. The purification is ...

Journal: :The Journal of biological chemistry 1967
R Silverstein J Voet D Reed R H Abeles

Sucrose phosphorylase (disaccharide glucosyltransferase) from Pseudomonas saccharophila has been highly purified. The enzyme appears to be homogeneous in the ultracentrifuge, on starch gel electrophoresis and on polyacrylamide gel disc electrophoresis. The molecular weight of the enzyme as determined by Sephadex chromatography is 80,000 to 100,000. The kinetics of the reaction was examined and ...

Journal: :The Journal of biological chemistry 1977
C M Palatnik E R Katz

Transfer RNAs and aminoacyl-tRNA synthetases were isolated from vegetative and developing cells of the cellular slime mode Dictyostelium discoideum. Using the homologous synthetases, the tRANs were compared for their levels of acceptance of 17 amino acids. These levels were found to be the same. The tRANs were further compared by double label chromatography on reversed phase columns. Some major...

Journal: :international journal of civil engineering 0
m. mahmoudi shahid rajaee teacher training university t. teimoori shahid rajaee teacher training university h. kozani shahid rajaee teacher training university

the current building codes provide limited prescriptive guidance on design for protection of buildings due to progressive collapse. progressive collapse is a situation in which a localized failure in a structure, caused by an abnormal load, such as explosions or other happenings. three procedures, often employed for determination of the structural response during progressive collapse i.e. linea...

Journal: :Journal of virological methods 2008
Brad M Matanin Yaowei Huang X J Meng Chenming Zhang

Porcine reproductive and respiratory syndrome virus (PRRSV) is the cause of an economically important swine disease that has been devastating the global swine industry since the early 1990s. The current PRRSV vaccines are not very effective largely due to heterogeneic nature of the virus. The major envelope protein, GP5, exposes outside the virion, induces neutralizing antibodies, and thus is a...

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