نتایج جستجو برای: کاتالیزور mcm

تعداد نتایج: 5625  

2015
Hynek Balcar Naděžda Žilková Martin Kubů Michal Mazur Zdeněk Bastl Jiří Čejka

Hoveyda-Grubbs type catalysts with cationic tags on NHC ligands were linker-free immobilized on the surface of lamellar zeolitic supports (MCM-22, MCM-56, MCM-36) and on mesoporous molecular sieves SBA-15. The activity of prepared hybrid catalysts was tested in olefin metathesis reactions: the activity in ring-closing metathesis of citronellene and N,N-diallyltrifluoroacetamide decreased in the...

2013
Jing-Long Han Angus Shiue Yu-Yun Shiue Den-Wei Huang Chang-Tang Chang

A series of mesoporous catalysts (MCM-41) promoted by copper oxide nanoparticles were prepared by the co-precipitation method and tested for the decomposition of carbon tetrafluoride (CF4). The addition of copper oxide nanoparticles to MCM-41 led to an improvement in the catalytic activity for CF4 decomposition. The catalyst was the most active around 5 wt% copper oxide added to MCM-41. Methods...

2013
May-Jywan Tsai Pei-Jou Ho Yi-Lo Lin Ming-Chao Huang Meng-Jen Lee Dann-Ying Liou Wen-Cheng Huang Yu-Show Fu Henrich Cheng

This work examines whether microglia-conditioned medium (MCM) is beneficial in stressed spinal cord cells or tissues. MCM was separated into two fractions by 50 kDa molecular cut-off centrifugation. MCM not only promoted survival of neuronal and oligodendroglial cells but effectively reduced LPS stimulation in spinal cord cultures. We further utilized the NYU weight-drop device to induce contus...

Journal: :Advanced Materials Interfaces 2021

The impact of zeolite hierarchization is often highlighted in terms increased mesopore volume or specific surface area and preservation micropore volume. Yet, although these targets may be achieved, the accessibility to certain micropores might negatively affected during hierarchization. A set hierarchical MCM-22 based materials prepared on desilication treatments MCM-22, layered precursor MCM-...

2011
Yousef Fazaeli Mostafa M Amini Hamed Ashourion Homayoun Heydari Abbas Majdabadi Amir Reza Jalilian Shamsozoha Abolmaali

The goal of this research was to investigate the potential of newly synthesized gold complex trichloro(2,4,6-trimethylpyridine)Au(III) as an anticancer agent. The gold(III) complex was synthesized and grafted on nanoporous silica, MCM-41, to produce AuCl(3)@PF-MCM- 41 (AuCl(3) grafted on pyridine-functionalized MCM-41). The toxicity of trichloro(2,4,6- trimethylpyridine)Au(III) and AuCl(3)@PF-M...

Journal: :Folia biologica 2011
M Mašata P Juda O Raška M C Cardoso I Raška

The essential role of MCM 2-7 proteins in the initiation of DNA replication in all eukaryotes is well known. Their role in replication elongation is supported by numerous studies, but there is still a knowledge gap in this respect. Even though biochemical studies have established an association of MCM proteins with replication forks, previous immunofluorescence studies in mammalian cells have s...

Journal: :Developmental biology 2011
Jerome Korzelius Inge The Suzan Ruijtenberg Vincent Portegijs Huihong Xu H Robert Horvitz Sander van den Heuvel

DNA replication and its connection to M phase restraint are studied extensively at the level of single cells but rarely in the context of a developing animal. C. elegans lin-6 mutants lack DNA synthesis in postembryonic somatic cell lineages, while entry into mitosis continues. These mutants grow slowly and either die during larval development or develop into sterile adults. We found that lin-6...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2006
J Morrow A Russell E Guthrie L Parsons I Robertson R Waddell B Irwin R C McGivern P J Morrison J Craig

OBJECTIVE To assess the relative risk of major congenital malformation (MCM) from in utero exposure to antiepileptic drug (AEDs). METHODS Prospective data collected by the UK Epilepsy and Pregnancy Register were analysed. The presence of MCMs recorded within the first three months of life was the main outcome measure. RESULTS Full outcome data were collected on 3607 cases. The overall MCM r...

2013
Ian M. Slaymaker Yang Fu Daniel B. Toso Nimna Ranatunga Aaron Brewster Susan L. Forsburg Z. Hong Zhou Xiaojiang S. Chen

Deregulation of mini-chromosome maintenance (MCM) proteins is associated with genomic instability and cancer. MCM complexes are recruited to replication origins for genome duplication. Paradoxically, MCM proteins are in excess than the number of origins and are associated with chromatin regions away from the origins during G1 and S phases. Here, we report an unusually wide left-handed filament ...

1995
Joel Darnauer Tsuyoshi Isshiki John Ramirez Vijayshri Maheshwari Wayne Wei-Ming Dai

of FPGA and MCM Technology Joel Darnauer, Tsuyoshi Isshiki, Por rio Garay, John Ramirez, Vijayshri Maheshwari, Wayne Wei-Ming Dai Applied Sciences Building, Computer Engineering, UC Santa Cruz, Santa Cruz, CA 95064 Internet: @ce.ucsc.edu Abstract Multichip module technology can be used to dramatically increase the capability and performance of eld programmable gate arrays (FPGAs) and the eld pr...

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