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451篇 您的检索式:作者名="Arabi"
    题名 作者 年代 出处 被引量
1埃及尼罗河三角洲城市化监测显示文摘对1972、1984和1990年在尼罗河三角洲获取的Landsat MSS和TM影象(scenes)处理的和协同配准的(coregistered)数字镶嵌图比较表明,城镇增长正危及着埃及农业的生产力。在1972、1984和1990年尼罗河三角洲的城镇面积至少分别占3.6%、4.7%和5.7%,在这18年期间增长了58%。大约一半的增长出现在1984~1990年期间。如果这种趋势继续下去,到2010年埃及将因城市化而丧失农地总面积的12%。尽管事实上城镇增长主要出现在城市周围,但在几千个小村庄周围的增长却对尼罗河三角洲的农业生产构成最大的威胁。1972~1990年间,城市和大村庄的累积增长率为37%,而同期小村庄的累积增长率为77%。Mohamed Sultan Michael Fiske Thomas Stein Mohamed Gamal Yehia Abdel Hady Hesham El Araby Ahmed Madani Salah Mehanee Richard Becker 石培礼 1999AMBIO-人类环境杂志1999,28,7:9
2镉离子对公牛精子功能损伤的机制显示文摘目的:重金属比如镉(Cd)作为工业污染物广泛分布在环境中,研究人员已经鉴定了这些污染物能影响男性生殖系统。本文研究的目的是测试Cd在10~1000μmol/L的浓度范围在体外对荷斯坦(Holstein)公牛精子膜和DNA完整性、活动率和精子顶体胞吐能力的影响。方法:用PBS处理公牛精液样本后进行精液分析。脂质过氧化试验评估精子膜完整性。明胶消化试验测定公牛精子顶体胞吐作用的能力。单细胞凝胶电泳(SCGE)检测单个细胞内DNA断裂和不耐碱的破坏。结果:脂质过氧化(LPO)显著增加,表明了Cd对精子膜完整性的破坏作用。这种影响在Cd浓度为1000μmol/L时特别明显。LPO与活动精子百分率之间呈负相关(r=-0.94,P〈0.001)。明胶消化试验表明Cd引起公牛精子顶体胞吐作用的百分率下降。发现在LPO率和消化环百分率之间呈负相关(r=-0.97,P〈0.001)。彗星试验获得的数据表明Cd能诱导精子核中的DNA断裂。接近93%的DNA损伤为双股断裂。LPO氧化率与DNA断裂百分率之间的相关性为0.95(P〈0.001)。结论:总体上,Cd诱导公牛精子膜损伤、活动率降低、DNA断裂、以及顶体反应率降低而导致精子功能损伤。进入雄性性腺和精浆的Cd可能对动物精子产生了破坏作用。Mehran ARABI Mohammad Saied HEYDARNEJAD 吕年青(译) 2007中华男科学杂志2007,13,4:8
3多器官床旁即时超声在新型冠状病毒肺炎中的应用:国际专家共识显示文摘新型冠状病毒肺炎(简称新冠肺炎,COVID-19)自首次报道以来,已造成全球超一亿人感染,给各国的公共卫生体系造成了巨大威胁。新冠肺炎的临床表现以呼吸系统体征和症状为主,80%的患者症状轻微,约5%为危重症患者,常表现为急性呼吸窘迫综合征(ARDS)。前期,由于缺乏相关研究,面对日益紧迫的临床困境,医务人员不得不借鉴采取一些经验性措施以应对疫情。王臻(译) Arif Hussain Gabriele Via Lawrence Melniker Alberto Goffi Guido Tavazzi Luca Neri Tomas Villen Richard Hoppmann Francesco Mojoli Vicki Noble Laurent Zieleskiewicz Pablo Blanco Irene W.Y.Ma Mahathar Abd.Wahab Abdulmohsen Alsaawi Majid AI Salamah Martin Balik Diego Barca Karim Bendjelid Belaid Bouhemad Pablo Bravo-Figueroa Raoul Breitkreutz Juan Calderon Jim Connolly Roberto Copetti Francesco Corradi Anthony J.Dean AndréDenault Deepak Govil Carmela Graci Young-Rock Ha Laura Hurtado Toru Kameda Michael Lanspa Christian B Laursen Francis Lee Rachel Liu Massimiliano Meineri Miguel Montorfano Peiman Nazerian Bret P.Nelson Aleksandar N.Neskovic Ramon Nogue Adi Osman JoséPazeli Elmo Pereira-Junior Tomislav Petrovic Emanuele Pivetta Jan Poelaert Susanna Price Gregor Prosen Shalim Rodriguez Philippe Rola Colin Royse Yale Tung Chen Mike Wells Adrian Wong Wang Xiaoting Wang Zhen Yaseen Arabi 2021中国呼吸与危重监护杂志2021,20,2:5
4吸烟者精浆对非吸烟者精子功能的毒性效应显示文摘目的:吸烟已被公认具有普遍的健康危害,并且有证据表明吸烟对男、女生殖健康均有影响。本研究的目的就是提供证据说明吸烟通过改变精液和精子质量来影响男性的生育能力。方法:我们评价了吸烟者(SM)的精浆(SP)(用PBS进行不同浓度的稀释,1/0;1/1;1/2;1/6;1/10)对非吸烟者(NSM)精子的直接影响。结果:非吸烟者的精子暴露于吸烟者的精浆一定时间,可导致因丙二醛水平升高所致的精子膜完整性受到破坏、精子活力下降和环(在明胶载玻片上因顶体反应导致环绕精子头部的清晰区带)的数量减少。结论:吸烟者的精子暴露于非吸烟者的精浆导致精子功能障碍改善,提示,去除吸烟者的精浆,然后重新加入含足量抗氧化体系的精浆,可能对各种辅助生育技术应用于吸烟者有临床意义。Mehran ARABI 陈芳(译) 吕年青(校) 2005中华男科学杂志2005,11,9:5
5Investigation on the homogenization treatment and element segregation on the microstructure of a γ/γ′-cobalt-based superalloy显示文摘The aim of the present study was to investigate the effect of element segregation on the microstructure and γ′ phase in a γ/γ′ cobalt-based superalloy. Several samples were prepared from a cast alloy and homogenized at 1300°C for different times, with a maximum of 24 h. A microstructural study of the cast alloy using wavelength-dispersive spectroscopic analysis revealed that elements such as Al, Ti, and Ni segregated mostly within interdendritic regions, whereas W atoms were segregated within dendrite cores. With an increase in homogenization time, segregation decreased and the initial dendritic structure was eliminated. Field-emission scanning electron microscopy micrographs showed that the γ′ phases in the cores and interdendritic regions of the as-cast alloy were 392 and 124 nm, respectively. The size difference of γ′ was found to be due to the different segregation behaviors of constituent elements during solidification. After homogenization, particularly after 16 h, segregation decreased; thus, the size, chemical composition, and hardness of the precipitated γ′ phase was mostly uniform throughout the samples.Saeed Aliakbari Sani Hossein Arabi Shahram Kheirandish Golamreza Ebrahimi 2019International Journal of Minerals,Metallurgy and Materials2019,26,2:5
6Interaction analysis between slenderness ratio and resin content on mechanical properties of particleboard显示文摘The interaction between particle size and resin content is one of the most important structural parameters that can influence the accuracy of predictions about wood-composite properties. We developed three kinds of equation (linear, quadratic, and exponential) for each mechanical property of particleboard based on slenderness ratio and resin content at a constant density (0.7g cm -3 ). Results from SHAZAM software (version 9) suggested that the quadratic function was not significant, but the linear and exponential functions were significant. The interaction between particle size and resin content was analyzed by Maple 9 software. The results indicated that an exponential function can better describe the simultaneous effect of slenderness and resin content than a linear equation. Under constant resin content, particles with higher slenderness ratios increased more in modulus of rupture (MOR) and modulus of elasticity (MOE) than did particles with lower slenderness ratios. Edge withdrawal resistance (SWRe) values did not increase with increasing slenderness ratio.Mohammad Arabi Mehdi Faezipour Mohammad Layeghi Ali Akbar Enayati 2011Journal of Forestry Research2011,22,3:4
7Investigation on the dissolution of η phase in a cast Ni-based superalloy显示文摘The dissolution behavior of η phase has been investigated in a cast Ni-based superalloy. The results showed that the platelets and blocks of η phase were formed within the interdendritic regions of the microstructure. Applying standard solution annealing at 1150-1160°C for a period of 4 h did not result in the complete dissolution of η phase. For the complete dissolution of η phase without residual incipient melting, a 2-step solution annealing has been recommended. After dissolution at high temperatures, the η phase transforms to two MC-type carbides: one is enriched in Ti, Nb, and Ta, and the other is of (Zr,Ti)C type.M.R. Jahangiri H. Arabi S.M.A. Boutorabi 2013International Journal of Minerals,Metallurgy and Materials2013,20,1:3
8Chemical analysis and antioxidant content of various propolis samples collected from different regions and their impact on antimicrobial activities显示文摘Objective: To assess the antioxidant content, antimicrobial and antioxidant activities of various propolis samples. Methods: Seven propolis samples were collected from different locations in Morocco, which are characterized by different plant predominant vegetations. The resin, wax and balsam of hydroalcoholic extract of propolis content were identified, and the antioxidant content was analyzed with the use of HPLC and colorimetric methods. The antioxidant activity was assessed by DPPH, ABTS.^+ and ferric reducing power assays. The antimicrobial activity was assessed against bacterial species, including methicillin resistant Staphylococcus aureus and Candida albicans, and expressed as the minimal inhibitory concentration. Results: The propolis samples showed significant variations in the chemical composition and in the antioxidant or antimicrobial activities even when the samples were collected from the same location. Propolis with high resin and low wax content had high level of antioxidant compounds, and strong antioxidant and antimicrobial activities. Gram-positive bacteria, especially, methicillin resistant Staphylococcus aureus were more sensitive to all propolis samples than Gram-negative bacteria and Candida albicans. Conclusions: The chemical composition and the antioxidant and antimicrobial activities of various propolis samples are different and rely on the geographic and plant origin of propolis collection. Propolis samples with low wax and high resin content might be more suitable to be used in future preclinical or clinical investigations.Soumaya Touzani Noori Al-Waili Nawal El Menyiy Bratko Filipic Adriana Pereyra Ilham EL Arabi Wail Al-Waili Badiaa Lyoussi 2018Asian Pacific Journal of Tropical Medicine2018,11,7:2
9工业AA1200铝合金薄板拉伸成形模拟和实验研究(英文)显示文摘对工业AA1200铝合金薄板拉伸成形的模拟和实验结果进行比较和评估。采用单向拉伸试验得到模拟所需输入参数。根据von Mises和Hill-1948屈服准则,采用Abaqus/Explicit有限元软件分析成形过程。将冲压力和应变分布的模拟结果与实验结果进行比较和验证。结果表明:在这两种情况下,使用各向异性屈服准则模拟的结果与实验结果更吻合。Reza ESMAEILIZADEH Kourosh KHALILI Bagher MOHAMMADSADEGHI Hossein ARABI 2014Transactions of Nonferrous Metals Society of China2014,24,2:2
10Critical care management of severe traumatic brain injury in adults显示文摘Haddad SH Arabi YM 0,,01:1
11The impact of time to tracheostomy on mechanical ventilation dura-tion,length of stay,and mortality in intensive care unit patients显示文摘Arabi YM Alhashemi JA Tamim HM 0,,3:1
12Reducing resin content and board density without adversely affecting the mechanical properties of particleboard through controlling particle size显示文摘Density and resin content are two factors that have a signifi- cant effect on the production cost of wood composite. However, particle size affects resin content and density, which suggests that the interaction of these three factors can be manipulated to reduce the board density and resin content of particleboard without adversely influencing its mechani- cal properties. Some mathematical functional forms based on resin con- tent, board density and slenderness ratio were regressed and an appropri- ate form was chosen. According to analysis of the results using SHA- ZAM 9 software, the exponential function best fit the experimental data. Finally, 'indifference curves' of mechanical properties were illustrated and analyzed. The results indicated that negative effects of density or resin content reduction on mechanical properties could be compensated for by controlling particles' slenderness ratio. Interestingly, increases in slenderness ratio compensated for the negative effects of decreases in resin content or board density on module of rupture (MOR) and module of elasticity (MOE). Moreover, this 'compensation ratio' intensified as resin content or density decreased and/or as the MOR or MOE increased. On the other hand, reduction in slenderness ratio indicated a comple- mentary effect on reducing internal bond (IB) strength, a result of de- creases in resin content or density. Moreover, this 'complementary ratio' was intensified as resin content or density decreased and/or as IB strength increased.Mohammad Arabi Mehdi Faezipour Heydar Gholizadeh 2011Journal of Forestry Research2011,22,4:1
13Soil radon survey for tracing active fault:a case study along Qena-Safaga road,Eastern Desert,Egypt 显示文摘Moussa M M EI Arabi A G M 2003Radiation Measurements2003,37,3:1
14Expression of GLUT-1 in epithelial ovarian carcinoma:correlation with tumor cell proliferation,angiogenesis,survival and ability to predict operdict cytoreduction显示文摘Semssn A Munkarah AR Arabi H 0,,01:1
15Membranous nephropathy: Treatment outline and risk stratification显示文摘Ziad Arabi 2012Avicenna Journal of Medicine2012,,3:1
16Comparing partitions显示文摘Hubert L Arabie P 1985Journal of Classification1985,2,1:1
17Effect of nicotine on normospermic men:modulation by antioxidants 显示文摘Arabi M Anand RJK 2002Iran Med J Reprod Infertil2002,3,11:1
18Indirect synthesis of bis(2 - Phlnd) ZrCl2 metallocene catalyst, kinetic study and modeling of ethylene polymerization 显示文摘Saeid Ahmadjo Hassan Arabi Mehdi Neknomanesh 2011Chemical Engineering & Technology2011,34,2:1
19The safety of pereutaneous tracheostomy in patients with coagulopathy or thrombocytopenia显示文摘A1 Dawood A Haddad S Arabi Y 2007Middle East J Anesthesiol2007,19,:1
20Impact of molecular weight distri- bution of soluble microbial products on fouling in mem- bi'ane bioreactors显示文摘Arabi S George N 2010Sep Purif Technol2010,73,3:1
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