维普中文期刊产品整合服务
405篇 您的检索式:作者名="Iskandar"
    题名 作者 年代 出处 被引量
1Tolerance and biosorption of copper (Cu) and lead (Pb) by filamentous fungi isolated from a freshwater ecosystem显示文摘Filamentous fungi are able to accumulate significant amount of metals from their environment. The potential of fungal biomass as agents for biosorption of heavy metals from contaminated sediments is currently receiving attention. In the present study, a total of 41 isolates of filamentous fungi obtained from the sediment of the Langat River, Selangor, Malaysia were screened for their tolerance and uptake capability of copper (Cu) and lead (Pb). The isolates were identified as Aspergillus niger, A. fumigatus, Trichoderma asperellum, Penicillium simplicissimum and P. janthinellum. A. niger and P. simplicissimum, were able to survive at 1000 mg/L of Cu(II) concentration on Potato Dextrose Agar (PDA) while for Pb, only A. niger survived at 5000 mg/L concentration. The results showed that A. niger, P. simplicissimum and T. asperellum have a better uptake capacity for Pb compared to Cu and the findings indicated promising biosorption of Cu and Pb by these filamentous fungi from aqueous solution. The present study was also determined the maximum removal of Cu(II) and Pb(II) that was performed by A. niger. The metal removal which occurred at Cu(II) 200 mg/L was (20.910 ± 0.581) mg/g and at 250 mg/L of Pb(II) was (54.046 ± 0.328) mg/g.Nur Liyana Iskandar Nur Ain Izzati Mohd Zainudin Soon Guan Tan 2011Journal of Environmental Sciences2011,23,5:19
2Gut microbiota profile in healthy Indonesians显示文摘BACKGROUND Recently, gut microbiota has been associated with various diseases other than intestinal disease. Thus, there has been rapid growth in the study of gut microbiota. Considering the numerous factors influencing gut microbiota such as age, diet, etc., area-based research is required. Indonesia has numerous different tribes and each of these tribes have different lifestyles. Hence, it is expected that each tribe has a specific gut microbiota. A deeper insight into the composition of gut microbiota can be used to determine the condition of gut microbiota in Indonesians and to consider which treatment may be suitable and effective to improve health status.AIM To investigate the gut microbiota of Indonesian subjects represented by Javanese and Balinese tribes by analyzing fecal samples.METHODS Fecal samples were collected from a total of 80 individuals with 20 in each of the young groups ranging from 25-45 years and the elderly group aged 70 years or more from two different regions, Yogyakarta and Bali. Fecal sample collection was performed at the end of the assessment period(day 14 ± 1 d) during which time the subjects were not allowed to consume probiotic or antibiotic products.The quantification of various Clostridium subgroups, Lactobacillus subgroups,Enterococcus, Streptococcus, Staphylococcus, Bacteroides fragilis group and Prevotella,Bifidobacterium and Atopobium cluster, Enterobacteriaceae and Pseudomonas was performed using the Yakult intestinal flora-scan(YIF-SCAN).RESULTS The bacterial population in younger subjects' feces was higher than that in the elderly population, with a total of approximately 10.0 – 10.6 log10 bacterial cells/g feces. The most abundant bacteria in all groups were Clostridium, followed by Prevotella, Atopobium, Bifidobacterium and Bacteroides. In the elderly, an increase in Enterobacteriaceae, Coliform and Escherichia coli was found. In terms of bacterial counts in Yogyakarta, total bacteria, Clostridium coccoides(C. coccoides) group,Bifidobacterium, Prevotella, Lactobacillus plantarum subgroup, and Streptococcus were significantly higher(P < 0.05) in younger than elderly subjects, while the Lactobacillus gasseri subgroup, Lactobacillus casei subgroup, and Lactobacillus reuteri subgroup counts were significantly lower(P < 0.05) in younger subjects. In Balinese subjects, total bacteria, C. coccoides group, Clostridium leptum subgroup,Bacteroides fragilis group, and Prevotella were significantly higher(P < 0.05) in younger compared to elderly individuals, while the Lactobacillus ruminis subgroup, and Enterobacteriaceae were significantly lower(P < 0.05) in younger subjects. The results also revealed that, besides the C. coccoides group and Clostridium leptum group being the most abundant gut microbiota in both Yogyakarta and Balinese people, the latter was indicated by a higher Clostridium perfringens count, which was almost 10 times that of Yogyakarta subjects. This may be a response to different lifestyles in the different tribes; however, this phenomenon requires further extensive study.CONCLUSION Bacterial populations were higher in younger than in elderly subjects. Most abundant bacterial groups were Clostridium, Prevotella, Atopobium, Bifidobacterium,and Bacteroides. The level of Clostridium perfringens in Yogyakarta subjects was lower than that in Balinese subjects.Endang Sutriswati Rahayu Tyas Utami Mariyatun Mariyatun Pratama Nur Hasan Rafli Zulfa Kamil Ryan Haryo Setyawan Fathyah Hanum Pamungkaningtyas IskANDar Azmy Harahap Devin Varian Wiryohanjoyo Putrika Citta Pramesi Muhammad Nur Cahyanto I Nengah Sujaya Mohammad Juffrie 2019World Journal of Gastroenterology2019,25,12:6
3硅油填充眼手法小切口与超声乳化白内障手术的并发症(英文)显示文摘目的:比较超声乳化联合硅油取出术与硅油填充眼手法小切口白内障手术(MSICS)的安全性。方法:回顾性对比研究。162例患者162眼接受白内障手术,超声乳化联合硅油取出术与硅油填充眼手法小切口白内障手术均行玻璃体切除。结果:超声乳化白内障手术组术后低眼压21眼(18.91%)MSICS组术后低眼压8眼(15.68%),两组间无明显统计学差异(P=0.666)。术后1mo两组间视网膜复位率无明显统计学意义;超声乳化白内障手术组8例患者(7.2%)复发,硅油填充眼手法小切口白内障手术组9例(17.64%)复发,两组复发率比较,差异无统计学意义(P=0.055)。结论:硅油填充眼手法小切口白内障手术相较于超声乳化联合硅取出术在低眼压、渗漏、脉络膜脱离、视网膜复位率方面结果无劣效性。Arief S Kartasasmita Ohisa Harley Mareta Gustianingsih Erwin Iskandar 2018国际眼科杂志2018,18,2:5
4Laparoscopic cholecystectomy for a left-sided gallbladder显示文摘Cholecystectomy is a common procedure.Abnormalities in the anatomy of the biliary system are common but an abnormal location of the gallbladder is much rarer.Despite frequent pre-operative imaging,the aberrant location of the gallbladder is commonly discovered at surgery.This article presents a case of a patient with the gallbladder located to the left of the falciform ligament in the absence of situs inversus totalis that presented with right upper quadrant pain.A laparoscopic cholecystectomy was performed and it was noted that the cystic duct originated from the right side.The presence of a left sided gall bladder is often associated with various biliary,portal venous and other anomalies that might lead to intra-operative injuries.The spectrum of unusual positions and anatomical gallbladder abnormalities is reviewed in order to facilitate elective and emergent cholecystectomy as well as other hepatobiliary procedures.With proper identification of the anatomy,minimally invasive approaches are still considered safe.Mazen E Iskandar Agnes Radzio Merab Krikhely I Michael Leitman 2013World Journal of Gastroenterology2013,19,35:4
5Single vs dual(en bloc) kidney transplants from donors ≤ 5 years of age: A single center experience显示文摘AIM: To compare outcomes between single and dual en bloc(EB) kidney transplants(KT) from small pediatric donors. METHODS: Monocentric nonprospective review of KTs from pediatric donors ≤ 5 years of age. Dual EB KT was defined as keeping both donor kidneys attached tothe inferior vena cava and aorta, which were then used as venous and arterial conduits for the subsequent transplant into a single recipient. Donor age was less useful than either donor weight or kidney size in decision-making for kidney utilization as kidneys from donors < 8 kg or kidneys < 6 cm in length were not transplanted. Post-transplant management strategies were standardized in all patients.RESULTS: From 2002-2015, 59 KTs were performed including 34 dual EB and 25 single KTs. Mean age of donors(17 mo vs 38 mo, P < 0.001), mean weight(11.0 kg vs 17.4 kg, P = 0.046) and male donors(50% vs 84%, P = 0.01) were lower in the dual EB compared to the single KT group, respectively. Mean cold ischemia time(21 h), kidney donor profile index(KDPI; 73% vs 62%) and levels of serum creatinine(SCr, 0.37 mg/d L vs 0.49 mg/d L, all P = NS) were comparable in the dual EB and single KT groups, respectively. Actuarial graft and patient survival rates at 5-years follow-up were comparable. There was one case of thrombosis resulting in graft loss in each group. Delayed graft function incidence(12% dual EB vs 20% single KT, P = NS) was slightly lower in dual EB KT recipients. Initial duration of hospital stay(mean 5.4 d vs 5.6 d) and the one-year incidences of acute rejection(6% vs 16%), operative complications(3% vs 4%), and major infection were comparable in the dual EB and single KT groups, respectively(all P = NS). Mean 12 mo SCr and abbreviated MDRD levels were 1.17 mg/d L vs 1.35 mg/d L and 72.5 m L/min per 1.73 m^2 vs 60.5 m L/min per 1.73 m^2(both P = NS) in the dual EB and single KT groups, respectively. CONCLUSION: By transplanting kidneys from young pediatric donors into adult recipients, one can effectively expand the limited donor pool and achieve excellent medium-term outcomes.Yousef Al-Shraideh Umar Farooq Hany El-Hennawy Alan C Farney Amudha Palanisamy Jeffrey Rogers Giuseppe Orlando Muhammad Khan Amber Reeves-Daniel William Doares Scott Kaczmorski Michael D Gautreaux Samy S Iskandar Gloria Hairston Elizabeth Brim Margaret Mangus Robert J Stratta 2016World Journal of Transplantation2016,6,1:3
6Biomarkers in inflammatory bowel disease: current practices and recent advances显示文摘Heba N. Iskandar Matthew A. Ciorba 2012Translational Research2012,,4:2
7Analysis of Turbulence and Surface Growth Models on the Estimation of Soot Level in Ethylene Non-Premixed Flames显示文摘Soot prediction in a combustion system has become a subject of attention, as many factors influence its accuracy. An accurate temperature prediction will likely yield better soot predictions, since the inception, growth and destruction of the soot are affected by the temperature. This paper reported the study on the influences of turbulence closure and surface growth models on the prediction of soot levels in turbulent flames. The results demonstrated that a substantial distinction was observed in terms of temperature predictions derived using the k-ε and the Reynolds stress models, for the two ethylene flames studied here amongst the four types of surface growth rate model investigated, the assumption of the soot surface growth rate proportional to the particle number density, but independent on the surface area of soot particles, f(A_s) = ρN_s, yields in closest agreement with the radial data. Without any adjustment to the constants in the surface growth term, other approaches where the surface growth directly proportional to the surface area and square root of surface area, f(A_s) = A_s and f(A_s) = √A_s, result in an under-prediction of soot volume fraction. These results suggest that predictions of soot volume fraction are sensitive to the modelling of surface growth.Y.Yunardi Edi Munawar Wahyu Rinaldi Asbar Razali Elwina Iskandar M.Fairweather 2018Journal of Thermal Science2018,27,1:2
8Stable photoluminescence of zinc oxide quantum dots in silica nanoparticles matrix prepared by the combined sol-gel and spray drying method显示文摘Mikrajuddin Iskandar F Okuyama K 2001Applied Physics2001,89,11:1
9Comments on“Maintenance Policies with Two-Dimensional Warranty”显示文摘Jack N Murthy D N P Iskandar B P 2003Reliability Engineering&System Safety2003,82,1:1
10Geochemical Signature of Mesozoic Volcanic and Granitic Rocks in Madina Regency Area, North Sumatra, Indonesia, and its Tectonic Implication显示文摘Iskandar Zulkarnain 2009Jurnal Geologi Indonesia2009,14,2:1
11Folate regulation of axonal regeneration in the rodent central nervous system through DNA methylation显示文摘Iskandar B J Rizk E Meier B 2010J Clinlnvest2010,120,:1
12Endovascular treatment of very small intracranial aneurysms 显示文摘Iskandar A Nepper-Rasmussen J 2011Interv Neuroradiol2011,17,3:1
13Water Saving and Economic Im-pacts of Land Leveling:The Case Study of Cot-ton Production in Tajikistan显示文摘Abdullaev Iskandar Ul Hassan Mehmood Jum-aboev 0,,3:1
14On identifying the most critical step in the sequence of heat treating operations in a 7249 aluminum alloy 显示文摘Iskandar M Reyes D Gaxiola Y 2003Engineering Failure Analysis2003,10,2:1
15Spinal axon regeneration evoked by replacing two growth cone proteins in adult neurons显示文摘Bomze HM Bulsara KR Iskandar BJ 20014:38-432001,4,:1
16Folate regulation of axonal re- generation in the rodent central nervous system through DNA methy- lation 显示文摘Iskandar B J Rizk E Meier B 2010Clin Invest2010,120,:1
17Folding of Chromatin in the Presence of Heterogeneous Histone H1 Binding to Nucleosomes 显示文摘Howe L Iskandar M Ausio J 1998J Biol Chem1998,273,19:1
18Isolation of the omithine-δ-aminotransferase cDNA and effect of salt stress on its expression in Arabidopsis thaliana显示文摘Roosens N H Thu T T Iskandar H M 1998Plant Physiology1998,117,1:1
19Comparison of reference genes for quantitative real-time polymerase chain reaction analysis of gene expression in sugarcane显示文摘Iskandar H M Simpson R S Casu R E 0,,04:1
20A repair--replace strategy based on usage rate for items sold with a two- dimensional warranty 显示文摘Jack N Iskandar B P Murthy D N P 2009Reliability Engineering and System Safety2009,94,:1
返回顶部 每页显示:
共21页 首页 上一页 第1页 下一页 末页 /21 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费