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27篇 您的检索式:作者名="Asima"
    题名 作者 年代 出处 被引量
1Cobalt and sulfur co-doped nano-size TiO_2 for photodegradation of various dyes and phenol显示文摘Various compositions of cobalt and sulfur co-doped titania nano-photocatalyst are synthesized via sol–gel method. A number of techniques including X-ray diffraction(XRD), ultraviolet–visible(UV–Vis), Rutherford backscattering spectrometry(RBS), thermal gravimetric analysis(TGA)Raman, N2 sorption, electron microscopy are used to examine composition, crystalline phase, morphology, distribution of dopants, surface area and optical properties o synthesized materials. The synthesized materials consisted of quasispherical nanoparticles of anatase phase exhibiting a high surface area and homogeneous distribution o dopants. Cobalt and sulfur co-doped titania demonstrated remarkable structural and optical properties leading to an efficient photocatalytic activity for degradation of dyes and phenol under visible light irradiations. Moreover, the effect of dye concentration catalyst dose and p H on photodegradation behavior of environmental pollutants and recyclability of the catalyst is also examined to optimize the activity of nano-photocatalys and gain a better understanding of the process.Asima Siddiqa Dilshad Masih Dalaver Anjum Muhammad Siddiq 2015Journal of Environmental Sciences2015,27,11:3
2Renal cells express different forms of vimentin: the independent expression alteration of these forms is important in cell resistance to osmotic stress and apoptosis显示文摘Bettina S Buchmale R Asima B 2013PLoS One2013,8,68:1
3Potent protection of gallic acid against DNA oxidation: Results of human and animal experiments显示文摘Franziska Ferk Asima Chakraborty Walter J?ger Michael Kundi Julia Bichler Miroslav Mi?ík Karl-Heinz Wagner Bettina Grasl-Kraupp Sandra Sagmeister Gerald Haidinger Christine Hoelzl Armen Nersesyan Maria Du?inská Tatjana Simi? Siegfried Knasmüller 2011Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis2011,,1:1
4A review of systemic and liver-directed therapies for metastatic neuroendocrine tumors of the gastroenteropancreatic tract显示文摘Jonathan R.Strosberg Asima Cheema 0,,:1
5Aniline alkylation with ethanol over zeolites and vanadium modified zeolites prepared by solid state exchange method 显示文摘S NARAYANAN ASIMA SULTANA 1998Applied Catalysis A : General1998,167,:1
6Influence of support on the activity of Mn supported catalysts for SCR of NO with ammonia 显示文摘ASIMA SULTANA MOTOI SASAKI HIDEAKI HAMA- DA 2012Catalysis Today2012,185,1:1
7Tuning the NOx conversion of Cu-Fe/ZSM-5 catalyst in NH 3 -SCR显示文摘Asima Sultana Motoi Sasaki Kunio Suzuki Hideaki Hamada 2013Catalysis Communications2013,,:1
8Radical scavenging and antibacterial activity of Arnebia benthamii methanol extract显示文摘Objective:To evaluate in vitro antioxidant and antibacterial activity of methanolic extract of Arnebia benthamii(A.benthamii) whole plant.Methods:Plasmid damage was analyzed by agarose gell electrophoresis.Calf thymus DNA was monitored by TBARS formation.DPPH, reducing power and lipid peroxidation was evaluated by using standard procedures.Antibacterial assay was monitored by disc diffusion method.Results:DPPH radical scavenging and hydroxyl radical scavenging potential of the plant revealed that the extract to be active radical scavenger.Reducing(Fe3+-Fe2+) power and lipid peroxidation inhibition efficiency(TBARS assay) of the extract was also evaluated and the extract showed promising activity in preventing lipid peroxidation and might prevent oxidative damages to biomolecules.The extract offered a significant protection against plasmid and calf thymus UNA damage induced by hydroxyl radicals. The extract was also evaluated on different bacterial strains and the maximum antibacterial activity was exhibited against Escherichia coli(E.coli) when compared with standard drug. Conclusions:These findings demonstrate that the methanol extract of A.benthamii has excellent anti-oxidant activities and could be considered as a potential source of lead molecules for pharmaceutical industries.Showkat A Ganie Asima Jan Sabeera Muzaffar Bilal A Zargar Rabia Hamid M Afzal Zargar 2012Asian Pacific Journal of Tropical Medicine2012,5,10:1
9SCR of NOx with NH3over Cu/Na ZSM-5 and Cu/HZSM-5 in the presence of decane显示文摘Asima S Tetsuya N Masaaki H 2009Catalysis Communications2009,10,14:1
10Fluorescence spectra from cancerous and normal human breast and lung tissues 显示文摘Alfano R R Tang G C Asima Pradhan 1987IEEE J Quantum Electronics1987,,:1
11Influence of co-cations on the formation of Cu + species in Cu/ZSM-5 and its effect on selective catalytic reduction of NOx with NH 3显示文摘Asima Sultana Tetsuya Nanba Masaaki Haneda Motoi Sasaki Hideaki Hamada 2010Applied Catalysis B Environmental2010,,1:1
12Interaction with A1 and Zn Induces Structure Formation and Aggregation in Natively Unfolded Caseins显示文摘Asima Chakraborty Soumen Basak 2008Journal of Photochemistry and Photohiology B: Biology2008,93,:1
13Development of potato starch based active packaging films loaded with antioxidants and its effect on shelf life of beet显示文摘INAM U NISA BILAL AHMAD ASHWAR ASIMA SHAH 2015J Food Sci Technol2015,52,11:1
14Synthesis of ZSM-5 type zeolites with and without template and evaluation of physicochemical properties and aniline alkylation activity显示文摘S. Narayanan Asima Sultana K. Krishna Paul Mériaudeau Claude Naccache 1995Catalysis Letters (-)1995,,1:1
15A new concept of combined NH 3 -CO-SCR system for efficient NO reduction in excess oxygen显示文摘Asima Sultana Masaaki Haneda Hideaki Hamada 2008Applied Catalysis B, Environmental2008,,1:1
16pH-induced structural transi- tions of caseins 显示文摘ASIMA C SOUMEN B 2007Journal of Photochemistry and Pho- tobiology B : Biology2007,87,3:1
17Drainage vs no drainage in secondary peritonitis with sepsis following complicated appendicitis in adults in the modern era of antibiotics显示文摘AIM: To compare the profile of postoperative outcome in secondary peritonitis with sepsis due to complicated appendicitis in two cohorts(drainage vs no-drainage) after appendicectomy in adults in the modern era of effective antibiotics. METHODS: A retrospective review of all adult patients who were operated for secondary peritonitis with sepsis due to complicated appendicitis was carried out. Total of 209 patients were identified from May 2005 to April 2009 with operative findings of gangrenous or perforated appendix. The patients were divided into two cohorts, those where prophylactic drainage was established(n = 88) and those where no drain was used(n = 121). Abdominal drain was removed oncethe drainage ceased or decreased(< 10-20 mL/d in closed system of drainage or when once daily dressing was minimally soaked in open system). Broad spectrum antibiotics to cover the gut flora were started in both cohorts at diagnosis and were stopped once septic features resolved. Peritoneal fluid for aerobic culture and sensitivity were routinely obtained intra operatively; however antibiotic regimens were not changed unless patient failed to respond to the antibiotics based on the institutional protocol. The co-morbidities and their influence on primary end points were noted. Immunocompromised patients, appendicitis complicated by inflammatory bowel disorder and tumors were excluded from the study. RESULTS: Disease stratification and other demographic features were comparable in both cohorts. There was zero mortality in drainage group while as one patient(0.82%) died in the non-drainage group. The median duration(in days) of hospital stay(6.5 vs 4); antibiotic use(5 vs 3.5); regular parental analgesic use(5 vs 3.5) and paralytic ileus(2.5 vs 2) was more common in the drainage group. Incidence of major wound infection in patients 14(15.9%) vs 22(18.18%) and residual intraabdominal sepsis(inter loop collection/abscess)-7(8%) vs 13(10.74%) requiring secondary intervention was not significantly different in drainage and non-drainage cohorts respectively. One patient in the drainage cohort had faecal fistula(1.1%). CONCLUSION: The complicated appendicitis in the modern era of antibiotics does not necessitate the use of prophylactic drain placement which at times may even prove counterproductive.Sheraz Ahmed Rather Shams UL Bari Ajaz A Malik Asima Khan 2013World Journal of Gastrointestinal Surgery2013,5,11:1
18干细胞 proteome 上的 antiproliferative 代理人 ciclopirox olamine 处理的影响显示文摘 AIM:To investigate the proteome changes of stem cells due to ciclopirox olamine (CPX) treatment compared to control and retinoic acid treated cells. METHODS:Stem cells (SCs) are cells, which have the ability to continuously divide and differentiate into various other kinds of cells. Murine embryonic stem cells (ESCs) and multipotent adult germline stem cells (maG-SCs) were treated with CPX, which has been shown to have an antiproliferative effect on stem cells, and compared to stem cells treated with retinoic acid (RA),which is known to have a differentiating effect on stem cells. Classical proteomic techniques like 2-D gel electrophoresis and differential in-gel electrophoresis (DIGE) were used to generate 2D protein maps from stem cells treated with RA or CPX as well as from non-treated stem cells. The resulting 2D gels were scanned and the digitalized images were collated with the help of Delta 2D software. The differentially expressed proteins were analyzed by a MALDI-TOF-TOF mass spectrometer, and the identified proteins were investigated and categorized using bioinformatics. RESULTS:Treatment of stem cells with CPX, a synthetic antifungal clinically used to treat superficial mycoses, resulted in an antiproliferative effect in vitro, without impairment of pluripotency. To understand the mechanisms induced by CPX treatments which results in arrest of cell cycle without any marked effect on pluripotency, a comparative proteomics study was conducted. The obtained data revealed that the CPX impact on cell proliferation was accompanied with a significant alteration in stem cell proteome. By peptide mass fingerprinting and tandem mass spectrometry combined with searches of protein sequence databases, a set of 316 proteins was identified, corresponding to a library of 125 non-redundant proteins. With proteomic analysis of ESCs and maGSCs treated with CPX and RA, we could identify more than 90 single proteins, which were differently expressed in both cell lines. We could highlight, that CPX treatment of stem cells, with subsequent proliferation inhibition, resulted in an alteration of the expression of 56 proteins compared to nontreated cells, and 54 proteins compared to RA treated cells. Bioinformatics analysis of the regulated proteins demonstrated their involvement in various biological processes. To our interest, a number of proteins have potential roles in the regulation of cell proliferation either directly or indirectly. Furthermore the classification of the altered polypeptides according to their main known/postulated functions revealed that the majority of these proteins are involved in molecular functions like nucleotide binding and metal ion binding, and biological processes like nucleotide biosynthetic processes, gene expression, embryonic development, regulation of transcription, cell cycle processes, RNA and mRNA processing. Proteins, which are involved in nucleotide biosynthetic process and proteolysis, were downregulated in CPX treated cells compared to control, as well as in RA treated cells, which may explain the cell cycle arrest. Moreover, proteins which were involved in cell death, positive regulation of biosynthetic process, response to organic substance, glycolysis, anti-apoptosis, and phosphorylation were downregulated in RA treated cells compared to control and CPX treated cells. CONCLUSION:The CPX treatment of SCs results in downregulation of nucleotide binding proteins and leads to cell cycle stop without impairment of pluripotency.Gry H Dihazi Asima Bibi Olaf Jahn Jessica Nolte Gerhard A Mueller Wolfgang Engel Hassan Dihazi 2013World Journal of Stem Cells2013,5,1:1
19Cancer chemopreventive activity of Achyranthes aspera leaves on Epstein-Barr vires activation and two-stage mouse skin carcinogenesis显示文摘 Adelheid Brantner Teruo Mukainaka 2002Cancer Letters2002,177,1:1
20Renal cells express different forms of vimentin:the independent expression alteration of these forms is important in cell resistance to osmotic stress and apoptosis显示文摘Bettina S Buchmaie R Asima B 2013PLoS One2013,8,68:1
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