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| 1 | Catalytic performances of kaoline and silica alumina in the thermal degradation of polypropylene显示文摘Polypropylene was cracked thermally and catalytically in the presence of kaoline and silica alumina in a semi batch reactor in the temperature range 400℃~550℃ in order to obtain suitable liquid fuels.The dependencies between process temperatures,types of catalyst,feed compositions and product yields of the obtained fuel fractions were found.It was observed that up to 450℃ thermal cracking temperature,the major product of pyrolysis was liquid oil and the major product at other higher temperatures(475℃~550℃) are viscous liquid or wax and the highest yield of pyrolysis product is 82.85% by weight at 500℃.Use of kaoline and silica alumina decreased the reaction time and increased the yield of liquid fraction.Again the major pyrolysis product in catalytic pyrolysis at all temperatures was low viscous liquid oil.Silica alumina was found better as compared to kaoline in liquid yield and in reducing the reaction temperature.The maximum oil yield using silica alumina and kaoline catalyst are 91% and 89.5% respectively.On the basis of the obtained results hypothetical continuous process of waste polypropylene plastics processing for engine fuel production can be presented. | Achyut K Panda R K Singh | 2011 | 燃料化学学报2011，39，3： | 15 |
| 2 | Endoscopic mucosal resection of colorectal polyps in typical UK hospitals显示文摘AIM:To evaluate the outcomes of endoscopic mucosal resection(EMR) for colorectal polyps,with particular regard to procedural complications and recurrence rate,in typical United Kingdom(UK) hospitals that perform an average of about 25 colonic EMRs per year.METHODS:A total of 239 colorectal polyps(≥ 10 mm) resected from 199 patients referred to Rochdale Infirmary,Salford Royal Hospital and Royal Oldham Hospital for EMR between January 2003 and January 2009 were studied.RESULTS:The mean size of polyps resected was 19.6 ± 12.4 mm(range 10-80 mm).The overall major complication rate was 2.1%.Complications were less frequent with non-adenomas compared with the other groups(Pearson's χ 2 test,P < 0.0001).Resections of largersized polyps were more likely to result in complications(unpaired t-test,P = 0.021).Recurrence was associated with histology,with carcinoma-in-situ more likely to recur compared with low-grade dysplasia [hazard ratio(HR) 186.7,95% confidence interval(95% CI):8.81-3953.02,P = 0.001].Distal lesions were also more likely to recur compared with right-sided and transverse colon lesions(HR 5.93,95% CI:1.35-26.18,P = 0.019).CONCLUSION:EMR for colorectal polyps can be performed safely and effectively in typical UK hospitals.Stricter follow-up is required for histologically advanced lesions due to increased recurrence risk. | Teegan R Lim Venkat Mahesh Salil Singh Benjamin HL Tan Mohamed Elsadig Nerukav Radhakrishnan Phil Conlong Chris Babbs Regi George | 2010 | World Journal of Gastroenterology2010，16，42： | 11 |
| 3 | Endoscopic ultrasound:It’s accuracy in evaluating mediastinal lymphadenopathy? A meta-analysis and systematic review显示文摘AIM:To evaluate the accuracy of endoscopic ultrasound (EUS), EUS-fine needle aspiration (FNA) in evaluating mediastinal lymphadenopathy. METHODS:Only EUS and EUS-FNA studies confirmed by surgery or with appropriate follow-up were selected. Articles were searched in Medline, Pubmed, and Cochrane control trial registry. Only studies from which a 2 × 2 table could be constructed for true positive, false negative, false positive and true negative values were included. Two reviewers independently searched and extracted data. The differences were resolved by mutual agreement. Meta-analysis for the accuracy of EUS was analyzed by calculating pooled estimates of sensitivity, specificity, likelihood ratios, and diagnostic odds ratios. Pooling was conducted by both Mantel-Haenszel method (fixed effects model) and DerSimonian Laird method (random effects model). The heterogeneity of studies was tested using Cochran’s Q test based upon inverse variance weights. RESULTS:Data was extracted from 76 studies (n = 9310) which met the inclusion criteria. Of these, 44 studies used EUS alone and 32 studies used EUS-FNA. FNA improved the sensitivity of EUS from 84.7% (95% CI:82.9-86.4) to 88.0% (95% CI:85.8-90.0). With FNA, the specificity of EUS improved from 84.6% (95% CI:83.2-85.9) to 96.4% (95% CI:95.3-97.4). The P forchi-squared heterogeneity for all the pooled accuracy estimates was > 0.10. CONCLUSION:EUS is highly sensitive and specific for the evaluation of mediastinal lymphadenopathy and FNA substantially improves this. EUS with FNA should be the diagnostic test of choice for evaluating mediastinal lymphadenopathy. | Srinivas R Puli Jyotsna Batapati Krishna Reddy Matthew L Bechtold Jamal A Ibdah Daphne Antillon Shailender Singh Mojtaba Olyaee Mainor R Antillon | 2008 | World Journal of Gastroenterology2008，14，19： | 10 |
| 4 | Alcoholic pancreatitis:New insights into the pathogenesisand treatment显示文摘Acute pancreatitis is a necro-inflammatory disease of the exocrine pancreas that is characterized by inappropriate activation of zymogens, infiltration of the pancreas by inflammatory cells, and destruction of the pancreatic exocrine cells. Acute pancreatitis can progress to a severe life-threatening disease. Currently there is no pharmacotherapy to prevent or treat acute pancreatitis. One of the more common factors associated with acute pancreatitis is alcohol abuse. Although commonly associated with pancreatitis alcohol alone is unable to cause pancreatitis. Instead, it appears that alcohol and its metabolic by-products predispose the pancreas to damage from agents that normally do not cause pancreatitis, or to more severe disease from agents that normally cause mild pancreatic damage. Over the last 10 to 20 years, a tremendous amount of work has defined a number of alcohol-mediated biochemical changes in pancreatic cells. Among these changes are: Sustained levels of intracellular calcium, activation of the mitochondrial permeability transition pore, endoplasmic reticulum stress, impairment in autophagy, alteration in the activity of transcriptional activators, and colocalization of lysosomal and pancreatic digestive enzymes. Elucidation of these changes has led to a deeper understanding of the mechanisms by which ethanol predisposes acinar cells to damage. This greater understanding has revealed a number of promising targets for therapeutic intervention. It is hoped that further investigation of these targets will lead to the development of pharmacotherapy that is effective in treating and preventing the progression of acute pancreatitis. | Dahn L Clemens Katrina J Schneider Christopher K Arkfeld Jaclyn R Grode Mark A Wells Shailender Singh | 2016 | World Journal of Gastrointestinal Pathophysiology2016，7，1： | 10 |
| 5 | Endoscopic therapy for Barrett's esophagus and early esophageal cancer:Where do we go from here?显示文摘Since Barrett's esophagus is a precancerous condition,efforts have been made for its eradication by various ablative techniques.Initially,laser ablation was attempted in non-dysplastic Barrett's esophagus and subsequently,endoscopic ablation using photodynamic therapy was used in Barrett's patients with high-grade dysplasia who were poor surgical candidates.Since then,various ablative therapies have been developed with radiofrequency ablation having the best quality of evidence.Resection of dysplastic areas only without complete removal of entire Barrett's segment is associated with high risk of developing metachronous neoplasia.Hence,the current standard of management for Barrett's esophagus includes endoscopic mucosal resection of visible abnormalities followed by ablation to eradicate remaining Barrett's epithelium.Although endoscopic therapy cannot address regional lymph node metastases,such nodal involvement is present in only 1% to 2% of patients with intramucosal adenocarcinoma in Barrett esophagus and therefore is useful in intramucosal cancers.Post ablation surveillance is recommended as recurrence of intestinal metaplasia and dysplasia have been reported.This review includes a discussion of the technique,efficacy and complication rate of currently available ablation techniques such as radiofrequency ablation,cryotherapy,argon plasma coagulation and photodynamic therapy as well as endoscopic mucosal resection.A brief discussion of the emerging technique,endoscopic submucosal dissection is also included. | Tavankit Singh Madhusudhan R Sanaka Prashanthi N Thota | 2018 | World Journal of Gastrointestinal Endoscopy2018，10，9： | 9 |
| 6 | Endoscopic management of postcholecystectomy biliary leakage显示文摘BACKGROUND: Biliary leak is an uncommon but significant complication following cholecystectomy. Endotherapy is an established method of treatment. However, the optimal intervention is not known. METHOD: Eighty-five patients with postcholecystectomy biliary leaks from July 2000 to March 2009 were retrospectively evaluated. RESULTS: The study population was 20 males and 65 females with a mean age of 42.47 years. Patients presented with abdominal pain (46), jaundice (23), fever (23), abdominal distension (42), or bilious abdominal drain (67). Endoscopic retrograde cholangiopancreatography detected a leak at the cystic duct stump in 45 patients, stricture with middle common bile duct leak in 4, leak from the right hepatic duct in 3, and a ligated common bile duct in 32. Twelve also had bile duct stones. One had a broken T-tube with stones Endotherapy was possible in 53 patients. Three patients with stones, one with a broken T-tube with stones, and 4 with stricture of the common bile duct with a leak were managed with sphincterotomy and stenting. Eight patients with a cystic duct stump leak with stones were managed with sphincterotomy and stone extraction. Three outpatients and 12 inpatients with a cystic duct stump leak were managed with sphincterotomy and stent and sphincterotomy and nasobiliary drain, respectively. Five patients with a cystic duct stump leak were managed with stenting. Sixteen with coagulopathy were managed with only nasobiliary drain (9) or stent (7). Leak closure was achieved in 100% patients Four developed mild pancreatitis which improved with conservative treatment.CONCLUSIONS: Endoscopic intervention is a safe and effective method of treatment of postcholecystectomy biliary leaks. However, management should be individualized based on factors such as outpatients or inpatients, presence of stone, stricture, ligature, or coagulopathy. | Virendra Singh Gurpreet Singh Ganga R Verma Rajesh Gupta | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，4： | 9 |
| 7 | Autologous mobilized peripheral blood CD34^+ cell infusion in non-viral decompensated liver cirrhosis显示文摘AIM: To study the effect of mobilized peripheral blood autologous CD34 positive(CD34+) cell infusion in patients with non-viral decompensated cirrhosis.METHODS: Cirrhotic patients of non-viral etiology were divided into 2 groups based on their willingness to be listed for deceased donor liver transplant(DDLT)(control, n = 23) or to receive autologous CD34+ cell infusion through the hepatic artery(study group, n= 22). Patients in the study group were admitted to hospital and received granulocyte colony stimulating factor injections 520 μg/d for 3 consecutive days to mobilize CD34+ cells from the bone marrow. On day 4,leukapheresis was done and CD34+ cells were isolated using CliniMAC magnetic cell sorter. The isolated CD34+ cells were infused into the hepatic artery under radiological guidance. The patients were discharged within 48 h. The control group received standard of care treatment for liver cirrhosis and were worked up for DDLT as per protocol of the institute. Both groups were followed up every week for 4 wk and then every month for 3 mo.RESULTS: In the control and the study group, the cause of cirrhosis was cryptogenic in 18(78.2%) and16(72.72%) and alcohol related in 5(21.7%) and6(27.27%), respectively. The mean day 3 cell count(cells/μL) was 27.00 ± 20.43 with a viability of 81.84± 11.99%. and purity of 80%-90%. Primary end point analysis revealed that at 4 wk, the mean serum albumin in the study group increased significantly(2.83± 0.36 vs 2.43 ± 0.42, P = 0.001) when compared with controls. This improvement in albumin was,however, not sustained at 3 mo. However, at the end of3 mo there was a statistically significant improvement in serum creatinine in the study group(0.96 ± 0.33 vs 1.42 ± 0.70, P = 0.01) which translated into a significant improvement in the Model for End-Stage Liver Disease score(15.75 ± 5.13 vs 19.94 ± 6.68,P = 0.04). On statistical analysis of secondary end points, the transplant free survival at the end of 1 mo and 3 mo did not show any significant difference(P =0.60) when compared to the control group. There was no improvement in aspartate transaminase, alanine transaminase, and bilirubin at any point in the study population. There was no mortality benefit in the study group. The procedure was safe with no procedural or treatment related complications.CONCLUSION: Autologous CD 34+ cell infusion is safe and effectively improves liver function in the short term and may serve as a bridge to liver transplantation. | Mithun Sharma Padaki Nagaraja Rao Mitnala Sasikala Mamata Reddy Kuncharam Chimpa Reddy Vardaraj Gokak BPSS Raju Jagdeesh R Singh Piyal Nag D Nageshwar Reddy | 2015 | World Journal of Gastroenterology2015，21，23： | 9 |
| 8 | Peripheral primitive neuroectodermal tumor of the kidney presenting with pulmonary tumor embolism: A case report显示文摘Peripheral primitive neuroectodermal tumor(PNET) of the kidney is a rare, aggressive tumor known for its recurrence and metastatic potential. Despite the frequency of venous extension to the renal veins and inferior vena cava, pulmonary tumor embolism at the initial presentation is not common. We report a case of 22-year-old female with PNET of the kidney who presented with tumor embolism in the inferior vena cava(IVC) and bilateral pulmonary artery. The patient underwent surgical resection and histopathological analysis confirmed the presence of tumor within the IVC and pulmonary arteries. The patient received adjuvant chemotherapy and is currently doing well on follow-up. | Sathya Chinnaa Chandan J Das Sanjay Sharma Prabhjot Singh Amlesh Seth Suvendu Purkait Sandeep R Mathur | 2014 | World Journal of Radiology2014，6，10： | 7 |
| 9 | 建筑遗产的保护——印度的经验及未来的可能性显示文摘1.0遗产
我们的遗产连接着现在与过去的文明。印度的土壤也承载着光荣的历史。尼赫鲁总理曾经这样描述过德里:"在这儿,即使是一块普通的石头也会在我们的耳边轻轻地诉说着这儿的历史,我们呼吸的空气中也充满着文明的尘埃与芬芳的过去。"他对德里的评价也适用于整个印度。 | Jitendra Singh Gaurav Singh Nayana R Singh 吴迪 | 2010 | 建筑与文化2010，，11： | 5 |
| 10 | Synthesis and evaluation of novel analogues of mangiferin as potent antipyretic显示文摘Objective:To screen different analogues of mangiferin pharmacologically for antipyretic activity. Methods:The naturally occurring xanthone glycoside mangiferin was isolated by column chromatography from the elhanolic extract of stem bark of Mangifera indica.Mangiferin was further converted to 5-(N-phenylamino methyleno) mangiferin.5-(N-p-chlorophenylamino methyleno) mangiferin,5-(N-2-methyl phenylamino methyleno) mangiferin.5-(N-p-methoxy phenylamino methyleno) mangiferin.5-(N,N-diphenylamino methyleno) mangiferin,5-(N-α-napthylamino methyleno) mangiferin and 5-(N-4-methyl phenylamino methyleno) mangiferin analogues.The synthesized compounds were further screened for antipyretic activity along with mangiferin at a dose level of 100 and 200 tng/kg.Mangiferin and its analogues were characterized by melting point and R_f value determination and through spectral technique like UV,IR,and NMR spectral analysis.Results:The antipyretic activity of mangiferin as well as all analogues was found to be more significant in at higher dose ie.200 mg/kg which was depicted thmugh a decrease in rectal temperature up to 3 h.Conclusions:The antipyretic activity of mangiferin and its analogues may be attributed to inhibition in synthesis of TNF-αand anti-oxidant activity associated with amelioration of inflammatory actions of cytokines. | Shashi Kant Singh Saurabh K Sinha SK Prasad R Kumar Bhawani S Bithu S Sadish Kumar P Singh | 2011 | Asian Pacific Journal of Tropical Medicine2011，4，11： | 4 |
| 11 | Germline mutation analysis of MLH1 and MSH2 in Malaysian Lynch syndrome patients显示文摘AIM: To investigate the protein expression profi le of mismatch repair (MMR) genes in suspected cases of Lynch syndrome and to characterize the associated germline mutations. METHODS: Immunohistochemical analysis of tumor samples was performed to determine the protein expression profile of MMR protein. Germline mutation screening was carried out on peripheral blood samples. The entire exon regions of MLH1 and MSH2 geneswere amplifi ed by polymerase chain reaction, screened by denaturing high performance liquid chromatography (dHPLC) and analyzed by DNA sequencing to characterize the germline mutations. RESULTS: Three out of 34 tissue samples (8.8%) and four out of 34 tissue samples (11.8%) showed loss of nuclear staining by immunohistochemistry, indicating the absence of MLH1 and MSH2 protein expression in carcinoma cells, respectively. dHPLC analysis followed by DNA sequencing showed these samples to have germline mutations of MSH2 gene. However, no deleterious mutations were identifi ed in any of the 19 exons or coding regions of MLH1 gene, but we were able to identify MLH1 promoter polymorphism, -93G > A (rs1800734), in 21 out of 34 patients (61.8%). We identified one novel mutation, transversion mutation c.2005G > C, which resulted in a missense mutation (Gly669Arg), a transversion mutation in exon 1, c.142G > T, which resulted in a nonsense mutation (Glu48Stop) and splice-site mutation, c.2006-6T > C, which was adjacent to exon 13 of MSH2 gene. CONCLUSION: Germline mutations were identified in four Malaysian Lynch syndrome patients. Immunohistochemical analysis of tumor tissue proved to be a good pre-screening test before proceeding to germline mutation analysis of DNA MMR genes. | Mohd Nizam Zahary Ravindran Ankathi Human Genome Centre Gurjeet Kaur Muhammad Radzi Abu Hassan Harjinder Singh Venkatesh R Naik | 2012 | World Journal of Gastroenterology2012，18，8： | 3 |
| 12 | Role of N-acetylcysteine in rifampicin-induced hepatic injury of young rats显示文摘瞄准:为了是学习 N-acetylcysteine (NAC ) 的角色,在 rifampicin (RMP ) 的一个保护的代理人导致了小老鼠的氧化肝的损害。方法:肝的损害被为 3 wk 给 RMP 的 50 mg/kg 体重生产。NAC (100 mg/kg 体重) 的剂量 intraperitoneally 与 RMP 在联合被给。类脂化合物的分析与体重,肝重量和组织学的观察一起在肝每氧化,巯基层次,细胞色素 P450,超级氧化物歧化酶(草皮) ,过氧化氢酶,谷胱甘肽过氧化物酶,还原酶和转移酶被估计。结果:当抗氧化的酶被改变时, RMP 暴露在身体和肝重量导致了没有变化但是非,蛋白质巯基(GSH ) 地位很好被保存。细胞色素 P450 系统并且每类脂化合物的氧化被 RMP 暴露导致。部分保护在肝对导致 RMP 的变化与 NAC 被观察,它在草皮和过氧化氢酶酶层次每氧化和减小从类脂化合物的增加的预防被证实。结论:NAC 保护小老鼠免于导致 RMP 的氧化肝的损害。 | SV Rana S Attri K Vaiphei R Pal A Attri K Singh | 2006 | World Journal of Gastroenterology2006，12，2： | 3 |
| 13 | Influence of antioxidants on metallothionein-mediated protection in cadmium-fed rats显示文摘 | Singh R Rana SV | 2002 | Biol Trace Elem Res2002，88，： | 2 |
| 14 | 1800V NPN Bipolar Junction Transistors in 4H-SiC显示文摘 | Ryu S H Agarwal A K Singh R | 2001 | IEEE Electron Device Letter2001，22，2： | 2 |
| 15 | A simple technique for quantitation of low levels of DNA damage in individual cells 显示文摘 | Singh N P Mccoy M T Tice R R | 1988 | Experimental Cell Research1988，175，： | 2 |
| 16 | Risk for esophageal neoplasia in B arrett’s esophagus patients with mucosal changes indefinite for dysplasia显示文摘 | Bela Horvath Prabhdeep Singh Hao Xie Prashanthi N Thota Daniela S Allende Rish K Pai Deepa T Patil Thomas P Plesec John R Goldblum Xiuli Liu | 2015 | J Gastroenterol Hepatol2015，，： | 2 |
| 17 | Remote sensing and GIS for land use/cover mapping and integrated land management: case from the middle Ganga plain显示文摘在印度,陆地资源由于很快成长的人口到达了一个批评阶段。这挑战向利用陆地资源要求一条综合途径,当考虑脆弱的环境条件时。遥感和地理信息系统(GIS ) 基于技术可以被用于一个区域以便产生最佳地被适合到地面并且到本地资源的生产潜力的一个持续开发计划。现在的学习区域是中间的 Ganga 平原的部分,作为 Son-Karamnasa 河间地知道,在印度。其他的陆地使用系统和有农业系统的家畜企业的集成为陆地资源管理被建议了。这份报纸的目的是准备一个陆地资源发展计划以便为持续开发增加土地的生产率。现在的学习将贡献必要输入让政策制造者改进这个区域的社会经济、环境的条件[出版摘要] | R B SINGH Dilip KUMAR | 2012 | Frontiers of Earth Science2012，6，2： | 2 |
| 18 | Genetic polymorphism and sequence evolution of an alternatively spliced exon of the glial fibrillary acidic protein gene显示文摘 | Singh R Nielsen AL Marianne G | 2003 | Genomics2003，82，： | 2 |
| 19 | Microstructrual and aqueous corrosion aspects of laser-surface-melted type 304 SS plasma-coated mild steel显示文摘 | Pukar M G Dayal R K Singh Raman R K | 1994 | Journal of Materials Engineering and Performance1994，，3： | 2 |
| 20 | A simple technique for quantitation of low level of DNA damage in individual cells显示文摘 | Singh NP McCoy M T Tice R R | 1988 | Exp cell res1988，175，： | 2 |
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