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| 1 | 新加坡SUT公司用抗污染反渗透膜成功回收废水显示文摘新加坡政府运用抗污染(FoulingResistant)反渗透膜技术建立起一个全球最大(1248m3/h)的工业及市政污水回用工厂。该系统设计具有坚实的试验基础,独具匠心,运行效果良好。本文旨在分享该项目的成功经验。 | 曾宏伟 Eu Hong Gay C Ravi Kai-Uwe Hoehn | 2003 | 水处理技术2003,29,2: | 7 |
| 2 | Carcinogenic Helicobacter pylori in gastric pre-cancer and cancer lesions: Association with tobacco-chewing显示文摘AIM:To investigate the low gastric cancer incidence rate relative to the highly prevalent Helicobacter pylori(H.pylori)infection;data relevant to H.pylori infection during gastric carcinogenesis in Indian patients is currently lacking.METHODS:The present study examines the prevalence of H.pylori infection in DNA derived from 156endoscopic gastric biopsies of different disease groups that represent gastric pre-cancer[intestinal metaplasia(n=15),dysplasia(n=15)],cancer[diffuse adenocarcinoma(n=44),intestinal adenocarcinoma(n=21)],and symptomatic but histopathologically-normal controls(n=61).This was done by generic ureC polymerase chain reaction(PCR)and cagA-specific PCR that could specifically identify the carcinogenic H.pylori strain.RESULTS:Our analysis showed the presence of H.pylori infection in 61%of symptomatic histopathologically-normal individuals,however only 34%of control tissues were harboring the cagA+H.pylori strain.A similar proportion of H.pylori infection(52%)and cagA(26%)positivity was observed in the tumor tissue of the gastric cancer group.In comparison,H.pylori infection(90%)and cagA positivity(73%)were the highest in gastric pre-cancer lesions.In relation to tobacco and alcohol abuse,H.pylori infection showed an association with tobacco chewing,whereas we did not observe any association between tobacco smoking or alcohol abuse with prevalence of H.pylori infection in the tissue of any of the patient groups studied.CONCLUSION:High incidence of H.pylori infection and carcinogenic cagA positive strain in pre-cancer lesions during gastric carcinogenesis may be | Arvind Pandey Satyendra Chandra Tripathi Sutapa Mahata Kanchan Vishnoi Shirish Shukla Sri Prakash Misra Vatsala Misra Suresh Hedau Ravi Mehrotra Manisha DwivediZ Alok C Bharti | 2014 | World Journal of Gastroenterology2014,20,22: | 4 |
| 3 | Concurrent removal of intravitreal lens fragments after phacoemulsification with pars plana vitrectomy prevents development of retinal detachment显示文摘AIM: To evaluate the outcomes of 'concurrent vitrectomy' to retrieve dislocated lens fragment during phacoemulsification.METHODS: In a retrospective, observational case series, data of patients who underwent 'concurrent' pars plana vitrectomy(PPV) for dislocated lens fragments between the period 2000 and 2008 were reviewed. Data collected included patient demographics, pre-operative visual acuity, intra-operative occurrence of retinal breaks, duration of follow up, post-operative intraocular pressure, final best-corrected visual acuity(BCVA),presence of cystoid macular edema(CME) and occurrence of rhegmatogenous retinal detachment(RRD).· RESULTS: A total of 58 eyes of 58 patients were included in the study. At 12 mo the mean postoperative BCVA was log MAR 0.17(20/30) with a range of log MAR0 to 0.69(20/20 to 20/100), with 96.6%(56/58) of patients showing post- operative improvement in visual acuity(P =0.005). None of the patients developed postoperative retinal detachment, endophthalmitis or non-resolving uveitis at 12 mo.CONCLUSION: Our study results suggest concurrent PPV for retained lens fragments after cataract surgery is beneficial and may decrease the risk of glaucoma and prevent development of RRD. | Kakarla V Chalam Ravi K Murthy Joshua C Priluck Vijay Khetpal Shailesh K Gupta | 2015 | International Journal of Ophthalmology(English edition)2015,8,1: | 4 |
| 4 | 3D additive manufactured composite scaffolds with antibiotic-loaded lamellar fillers for bone infection prevention and tissue regeneration显示文摘Bone infections following open bone fracture or implant surgery remain a challenge in the orthopedics field.In order to avoid high doses of systemic drug administration,optimized local antibiotic release from scaffolds is required.3D additive manufactured(AM)scaffolds made with biodegradable polymers are ideal to support bone healing in non-union scenarios and can be given antimicrobial properties by the incorporation of antibiotics.In this study,ciprofloxacin and gentamicin intercalated in the interlamellar spaces of magnesium aluminum layered double hydroxides(MgAl)andα-zirconium phosphates(ZrP),respectively,are dispersed within a thermoplastic polymer by melt compounding and subsequently processed via high temperature melt extrusion AM(~190◦C)into 3D scaffolds.The inorganic fillers enable a sustained antibiotics release through the polymer matrix,controlled by antibiotics counterions exchange or pH conditions.Importantly,both antibiotics retain their functionality after the manufacturing process at high temperatures,as verified by their activity against both Gram+and Gram-bacterial strains.Moreover,scaffolds loaded with filler-antibiotic do not impair human mesenchymal stromal cells osteogenic differentiation,allowing matrix mineralization and the expression of relevant osteogenic markers.Overall,these results suggest the possibility of fabricating dual functionality 3D scaffolds via high temperature melt extrusion for bone regeneration and infection prevention. | María C´amara-Torres Stacy Duarte Ravi Sinha Ainhoa Egizabal Noelia´Alvarez Maria Bastianini Michele Sisani Paolo Scopece Marco Scatto Alessandro Bonetto Antonio Marcomini Alberto Sanchez Alessandro Patelli Carlos Mota Lorenzo Moroni | 2021 | Bioactive Materials2021,6,4: | 2 |
| 5 | Can testosterone therapy be offered to men on active surveillance for prostate cancer? Preliminary results显示文摘这份报告在活跃监视上在 T 缺乏的人的一个队与 T 治疗介绍我们的经验(作为) 为 Gleason 3 + 3 并且 Gleason 3 + 4 前列腺癌症(PCa ) 。回顾的图表评论与 T 缺乏识别了 28 个人经历 T 治疗(T 组) 至少 6 个月了当时在上至于 PCa。96 个人在上的一个比较组至于有未经治疗的 T 缺乏的 PCa (别组织) 在一样的机构被识别。同样协议跟随了修改爱泼斯坦标准和有小量的 Gleason 3 + 的一个单个核心的人的允许的包括 4 PCa。吝啬的年龄是 59.5 和 61.3 年,并且意味着后续是为 T 的 38.9 和 42.4 个月并且不分别地组织。在 T 组的所有 28 个人, 3 (10.7%) 人们在格利森分数开发了增加当时在上作为。22,在 T 的人与 Gleason 3 + 组织 3 疾病, 7 (31.8%) 人们包括开发了 Gleason 3 + 的 3 个人(13.6%) 开发了活体检视前进 4 PCa。有 Gleason 3 + 的 6 个人在基线的 4 疾病, 2 (33.3%) 人们在肿瘤体积开发了增加,并且任何一个都没发展在 Gleason 3 + 以外升级 4。所有 96 个人在别组织有的 Gleason 3 + 在基线的 3 疾病并且,(44.7%) 43 开发了活体检视前进,包括有升级到 Gleason 7 的 9 个人(9.38%)(3 + 4 ) 。活体检视前进率为组和历史的控制是类似的。在人在上的活体检视前进作为在 3 年由 T 治疗显得未受影响。在 T 缺乏的人在上的 T 治疗的未来的控制安慰剂的试用作为应该被认为给对待的人经验丰富的征兆的好处。 | Ravi Kacker Mariam Hult Ignacio F San Francisco William P Conners Pablo A Rojas William C Dewolf Abraham Morgentaler | 2016 | Asian Journal of Andrology2016,18,1: | 2 |
| 6 | Influence of Aggregate Type and Size on Ductility and Mechanical Properties of Engineered Cementitious Composites显示文摘 | Sahmaran Mustafa Lachemi Mohamed Hossain Khandaker M A Ranade Ravi Li Victor C | 2009 | ACI Materials Journal2009,,3: | 2 |
| 7 | Para-aortic lymph node involvement should not be a contraindication to resection of pancreatic ductal adenocarcinoma显示文摘BACKGROUND Para-aortic lymph nodes(PALN)are found in the aortocaval groove and they are staged as metastatic disease if involved by pancreatic ductal adenocarcinoma(PDAC).The data in the literature is conflicting with some studies having associated PALN involvement with poor prognosis,while others not sharing the same results.PALN resection is not included in the standard lymphadenectomy during pancreatic resections as per the International Study Group for Pancreatic Surgery and there is no consensus on the management of these cases.AIM To investigate the prognostic significance of PALN metastases on the oncological outcomes after resection for PDAC.METHODS This is a retrospective cohort study of data retrieved from a prospectively maintained database on consecutive patients undergoing pancreatectomies for PDAC where PALN was sampled between 2011 and 2020.Statistical comparison of the data between PALN+and PALN-subgroups,survival analysis with the Kaplan-Meier method and risk analysis with univariable and multivariable time to event Cox regression analysis were performed,specifically assessing oncological outcomes such as median overall survival(OS)and disease-free survival(DFS).RESULTS 81 cases had PALN sampling and 17(21%)were positive.Pathological N stage was significantly different between PALN+and PALN-patients(P=0.005),while no difference was observed in any of the other characteristics.Preoperative imaging diagnosed PALN positivity in one case.OS and DFS were comparable between PALN+and PALN-patients with lymph node positive disease(OS:13.2 mo vs 18.8 mo,P=0.161;DFS:13 mo vs 16.4 mo,P=0.179).No difference in OS or DFS was identified between PALN positive and negative patients when they received chemotherapy either in the neoadjuvant or in the adjuvant setting(OS:23.4 mo vs 20.6 mo,P=0.192;DFS:23.9 mo vs 20.5 mo,P=0.718).On the contrary,when patients did not receive chemotherapy,PALN disease had substantially shorter OS(5.5 mo vs 14.2 mo;P=0.015)and DFS(4.4 mo vs 9.8 mo;P<0.001).PALN involvement was not identified as an independent predictor for OS after multivariable analysis,while it was for DFS doubling the risk of recurrence.CONCLUSION PALN involvement does not affect OS when patients complete the indicated treatment pathway for PDAC,surgery and chemotherapy,and should not be considered as a contraindication to resection. | Rupaly Pande Shafiq Chughtai Manish Ahuja Rachel Brown David C Bartlett Bobby V Dasari Ravi Marudanayagam Darius Mirza Keith Roberts John Isaac Robert P Sutcliffe Nikolaos A Chatzizacharias | 2022 | World Journal of Gastrointestinal Surgery2022,14,5: | 2 |
| 8 | Association behavior of poly( methacrylic acid)-block-poly( methyl methacrylate) in aqueous medium : potentiometric and laser light scattering studies显示文摘 | Ravi P WANG C Tam K C | 2003 | Macromolecules2003,36,: | 1 |
| 9 | Severe plastic deformation (SPD) and nostructured materials by machining显示文摘 | Srinivasan Swaminathan M Ravi Shankar Balkrishna C Rao | 2007 | Journal of Materials Science2007,42,1: | 1 |
| 10 | Grain refinement in AZ91 magnesium alloy during thermomechanical processing显示文摘 | NV Ravi Kumar JJ Blandin C Desrayaud F Montheillet M Suery | 2003 | Materials Science and Engineering:A2003,359,: | 1 |
| 11 | Electronic structure,bonding,and ground-state properties of AlB2-type transition-metal diborides显示文摘 | Vajeeston P Ravindran P Ravi C | 2001 | Phys Rev B2001,63,04: | 1 |
| 12 | First-principles study of crystalstructure and stability of Al-Mg-Si-(Cu) precipitates显示文摘 | RAVI C WOLVERTON C | 2004 | ActaMaterialia2004,52,: | 1 |
| 13 | Grain refinement in AZ91 magnesium alloy during thermomechanical processing显示文摘 | RAVI KUMAR N V BLANDIN J J DESRAYAUD C | 2003 | Materials and Engineering A2003,359,: | 1 |
| 14 | Self-assembly behavior of a stimuli-responsive water-soluble fullerene-co-ntaining polymer 显示文摘 | Dai S Ravi P Tan C H | 2004 | Langmuir2004,20,: | 1 |
| 15 | A New Model Reference Adaptive Controller for Four Quadrant Vector Controlled Induction Motor Drives显示文摘 | A V Ravi Teja C Chakraborty S Maiti Y Hori | 2012 | IEEE Transactions on Industrial Elec- tronics2012,59,: | 1 |
| 16 | Electro-optics of perovskite solar cells显示文摘 | Lin Q Ardalan A Ravi C R N | 2014 | Nature Photonics2014,9,2: | 1 |
| 17 | Comparative performance of plastic mulching on soil moisture content,soil temperature and yield of rain fed cotton显示文摘 | Ravi V Lourduraj A C | 1996 | Madras Agric J1996,83,: | 1 |
| 18 | An unusual, muddy, epeiric carbonate reservoir: The Lower Muschelkalk(Middle Triassic) of the Netherlands显示文摘 | Ravi B Thomas A Koos J C P P | 2006 | AAPG Bulletin2006,90,1: | 1 |
| 19 | An efficient method for aromatic Friedel - Crafts alkylation, acylation, benzoylation, and sulfonylation reactions 显示文摘 | Ravi P S Rajesh M K Kusum L C | 2001 | Tetrahedron2001,57,1: | 1 |
| 20 | An ISODATA clustering procedure for symbolic objects using a distributed genetic algorithm显示文摘 | Ravi T V Gowda K C | 1999 | Pattern Recognition Letters1999,20,: | 1 |