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36篇 您的检索式:作者名="Siddiqa"
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1Big data storage technologies: a survey显示文摘对于容量快速增长、日趋多元化的大数据,业界亟需开发可行性更好的存储工具。为满足大数据存储需求,存储机制已经形成从传统数据管理系统到No SQL技术的结构化转移。然而,目前可用的大数据存储技术无法为持续增长的异构数据提供一致、可扩展和可用的解决方案。在科学实验、医疗保健、社交网络和电子商务等实际应用中,存储是大数据分析的第一步。截至目前,亚马逊、谷歌和阿帕奇等公司形成了大数据存储方案的行业标准,但尚未有关于大数据存储技术性能和容量提升的深入调查和文献报告。本文旨在对目前可用于大数据的最先进的存储技术进行全面调查,提供了一个明确的大数据存储技术分类方法,以帮助数据分析师和研究人员了解和选择更适合其需求的存储机制。我们使用布鲁尔的CAP定理比较和分析了现有存储方法,评估了不同存储架构的性能,讨论了存储技术的意义、应用及其对其他类别数据的支持。为了加快部署可靠和可扩展的存储系统,文中还突出了未来研究面临的几个挑战。Aisha SIDDIQA Ahmad KARIM Abdullah GANI 2017Frontiers of Information Technology & Electronic Engineering2017,18,8:15
2泪道探通对三个年龄组的先天性鼻泪管阻塞患者的疗效(英文)显示文摘目的:比较泪道探通治疗对三个年龄组的先天性鼻泪管阻塞患者的成功率。方法:共180例先天性鼻泪管阻塞患者根据年龄分为3组, Ⅰ组(4 ~6mo), Ⅱ组(7 ~12mo)和Ⅲ组(13 ~24mo),均行泪道探通治疗。症状体征均消失为治疗成功的标准。用卡方检验分析结果。结果:Ⅰ组治疗成功率为100.0%, Ⅱ组治疗成功率为88.5%,Ⅲ组治疗成功率为82.3%,总的治愈率为90.7%。结论:泪道探通治疗的有效性随着年龄的增加降低。在6mo时行泪道探通治疗的孩子成功率最高,能完全消除症状。Siddiqa Gul Syed Asher Dabir Shafi Muhammad Jatoi Ashok Kumar Narsani Mahatab Alam 2008国际眼科杂志2008,8,5:8
3细菌性角膜溃疡的医院流行病学,诱因和微生物诊断(英文)显示文摘目的:确定细菌性角膜溃疡的发病诱因,临床和微生物特性。方法:本研究涉及300例(300眼)临床上疑似微生物感染的角膜溃疡患者。通过病史回顾和裂隙灯检查获得病例资料。采用标准技术完成角膜刮片检查。取部分刮片样本加入100g/L的氢氧化钾液后,以及采用革兰氏和吉姆萨染色,再直接在显微镜下观察是否存在真菌、细菌和棘阿米巴。另一部分刮片样本直接接种在血琼脂、麦康基琼脂、巧克力琼脂和萨布罗琼脂表面。通过角膜刮片检查,细菌性角膜溃疡被确诊为化脓性角膜溃疡浸润和表层上皮细胞缺失伴细菌感染。对患者应用抗菌治疗。结果:在随访期间,因丢失而被排除的有60个病例。在剩下的240人中,被确诊为细菌性角膜溃疡的156人(65%),大多数为男性(102眼),年龄分布14~74岁。角膜溃疡位于角膜中央的96人(61.5%),位于外周的60人(38.5%)。溃疡深度<1/3角膜厚度的82人(52.6%)。前房炎症为:Tyndall现象和浮游细胞1+~2+64人。角膜涂片中分离出细菌的有125人(80%),其中69%为革兰氏阳性,39%为革兰氏阴性。革兰氏阴性菌感染患者伴有重症前房炎症(P=0.003)并且深度>2/3角膜厚度(P=0.001)。分离得到的最常见致病微生物为金黄色葡萄球菌。治疗后40%的患者视力恢复到入院时的水平甚至更好,其余60%的患者预后差。结论:细菌性角膜溃疡是一种严重的眼部感染性疾病,对眼部存在视力威胁,在治疗上仍具挑战性。快速分离细菌和眼部抗生素的应用是治疗此类疾病的关键。Ashok Kumar Narsani Shafi Muhammad Jatoi Mahesh Kumar Lohana Syed Asher Dabir Siddiqa Gul Mahtab Alam Khanzada 2009国际眼科杂志2009,9,3:6
4Cobalt 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
5巴基斯坦海德拉巴124例眼球穿通伤的临床分析(英文)显示文摘目的:分析眼球穿通伤的常见病因,确定这些病例的最终视力。方法:总共124例(124眼)年龄为6 ~60岁的眼球穿通伤患者就诊于Liaquat大学眼科,分析眼球穿通伤的常见病因及最终视力。结果:本研究包括124例眼球穿通伤患者,平均年龄35(6 ~60)岁,男性为主,占86.3%,大多数患者小于20岁(71%)。眼球穿通伤最常见于职工,占76%。51%的患者最佳矫正视力位于光感至0.1之间。我们可靠记录了124例患者的最初视力和最终视力,结果发现不良的最终视力和差的最初视力之间关系密切。结论:眼球穿通伤是一种常见事故,尤其发生在青年男性中,常导致患者眼视力下降。缺乏保护措施的工作环境和儿童玩耍危险物品是常致严重的眼外伤的原因。Ashok Kumar Narsani Syed Asher Dabir Siddiqa Gul Shafi Muhammad Jatoi Mahtab Alam Khanzada Mahesh Kumar 2008国际眼科杂志2008,8,11:2
6Natural convection flow over an inclined flat plate with in- ternal heat generation and variable viscosity 显示文摘Siddiqa S Asghar S Hossain M A 2010Math and Comp Model2010,52,910:1
7Sectrophotometric analysis of flavonoid-DNA binding interactions at physiological conditions 显示文摘Janjua N K Siddiqa A Yaqub A 2009Spectrochim Acta A Mol Biomol Spectrosc2009,74,5:1
8Fungal keratitis:84cases report in Southern Pakistan显示文摘A shok Kumar Narsan i Siddiqa Gu lSyed A sher Dabir 2008IntJ OPhthalmol2008,8,9:1
9Regulation of CD40 and CD40 ligand by the AThook transcription factor AKNA 显示文摘Siddiqa A Sims-Mourtada JC Guzman-Rojas L 2001Nature2001,410,6826:1
10Prevalence and genotyping of high risk human papillomavirus in cervical cancer samples from punjab, pakistan 显示文摘Siddiqa A Zainab M Qadri I 2014Viruses2014,6,7:1
11Expression of HER-2 in MCF-7 breast cancer cells modulates anti-apoptotic proteins Survivin and Bcl-2 via the extracellular signal-related kinase(ERK)and phosphoinositide-3 kinase(PI3K)signalling pathways显示文摘Siddiqa A Long L M Li L 2008BMC Cancer2008,5,8:1
12Expression of HER-2 in MCF-7 breast cancer cells modulates anti-apoptotic pro- teins Survivin and Bcl-2 via the extracellular signal-related kinase (ERK) and phosphoinositide-3 kinase (PI3K) signalling pathways显示文摘Siddiqa A Long LM Li L 2008BMC Cancer2008,,8:1
13Expression of HER- 2 in MCF-7 breast cancer cells modulates anti-apoptoticproteins Survivin and Bcl-2 via the extraeellular signal- related kinase (ERK) and phosphoinositide-3 kinase (PI3K) signalling pathway显示文摘Siddiqa A Long LM Li L 2008BMC Cancer2008,8,:1
14Expression of HER-2 in MCF - 7 breast cancer cells modulates anti - apoptotic proteins Survivin and Bcl - 2 via the extracellular signal - related kinase (ERK) and phosphoinositide- 3 kinase (PI3K) signalling pathways显示文摘SIDDIQA A LONG L M LI L 2008BMC Cancer2008,8,:1
15Expression of HER-2 in MCF-7 breast cancer cells modulates anti-apoptotic proteins Survivin and Bcl-2 via the extracellular signal-related kinase (ERK) and phosphoinositide-3 kinase (PI3K) signalling pathways显示文摘Siddiqa A Long LM Li L 2008BMC Cancer2008,28,:1
16Regulation of CD40 and CD40 ligand by the AT-hook transcription factor AKNA显示文摘Siddiqa A Sims-Mourtada JC Guzman-Rojas L 2001Nature2001,410,6826:1
17Targeting telomerase显示文摘Siddiqa A Cavazos D A Marciniak R A 2006Rejuvenation Res2006,9,3:1
18Expression of HER -2 in MCF - 7 breast cancer cells modulates anti - apoptotic proteins Survivin and Bcl -2 via the extracellular signal -related kinase (ERK) and phospboinositide - 3 kinase ( PI3 K) signalling path- ways显示文摘Siddiqa A Long LM Li L 2008BMC Cancer2008,8,:1
19A recent survey of re- versible watermarking techniques显示文摘Khan A Siddiqa A Munib S 2014Information Sci- ences2014,279,:1
20Expression of HER2 in MCF-7 breast cancer cells modulates anti-apoptotic proteins Survivin and Bcl-2 via the extracellular signal-related kinase (ERK) and phosphoinositide-3 kinase (PI3K) signalling pathways显示文摘Siddiqa A Long LM Li L 2008BMC Cancer2008,5,8:1
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