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| 1 | Effect of aging on the microstructure of 17-4PH stainless steel 显示文摘 | Viswanathan U K Banerjee S Krishnan R | 1988 | Materials Science and Engineering1988，104，1： | 1 |
| 2 | Managing the Simultaneous Execution of Coupled Phases in Concurrent Product Development显示文摘 | | 1996 | IEEE Transactions on Engineering Management1996，43，2： | 1 |
| 3 | Kinetics of precipitation in 17-4Ph stainless steel显示文摘 | U K Viswanathan P K K Nayar R Krishnan | 1989 | Materials Science and Technology1989，，5： | 1 |
| 4 | Kinetics of precipitation in 17-4PH stainless steel显示文摘 | VISWANATHAN U K NAYAR P K K KRISHNAN R | 1989 | Materials Science and Technology1989，，5： | 1 |
| 5 | Kinetics of precipitation in 17-4PH stainless steel显示文摘 | Viswanathan K Nayar K Krishnan R | 1989 | Materials Science and Technology1989，5，4： | 1 |
| 6 | A model-based framework to overlap product development activities 显示文摘 | Viswanathan Krishnan Eppinger Steven D Whitney Daniel E | 1999 | Management Science1999，43，4： | 1 |
| 7 | Effects of aging on the microstructure of 17-4PH stainless steel显示文摘 | Viswanathan U K Banerjee S Krishnan R | 1988 | Materials Science and Engineering1988，，： | 1 |
| 8 | Kinetics of precipitation in 17-4PH stainless steel 显示文摘 | Viswanathan K Nayar K Krishnan R | 1989 | Materials Science and Technology1989，5，4： | 1 |
| 9 | Kinetics of Precipitation in 17-4Ph Stainless Steel显示文摘 | VISWANATHAN U K NAYAR P K K KRISHNAN R | 1989 | Mate- rials Science and Technology1989，，5： | 1 |
| 10 | Kinetics of precipitation in 17-4PH stainless steel显示文摘 | VISWANATHAN U K NAYAR P K K KRISHNAN R | 1989 | Materials Science and Technology1989，5，： | 1 |
| 11 | A review on transition metal oxides based photocatalysts for degradation of synthetic organic pollutants显示文摘This review provides insight into the current research trend in transition metal oxides(TMOs)-based photocatalysis in removing the organic colouring matters from water.For easy understanding,the research progress has been presented in four generations according to the catalyst composition and mode of application,viz:single component TMOs(the firstgeneration),doped TMOs/binary TMOs/doped binary TMOs(the second-generation),inactive/active support-immobilized TMOs(the third-generation),and ternary/quaternary compositions(the fourth-generation).The first two generations represent suspended catalysts,the third generation is supported catalysts,and the fourth generation can be suspended or supported.The review provides an elaborated comparison between suspended and supported catalysts,their general/specific requirements,key factors controlling degradation,and the methodologies for performance evaluation.All the plausible fundamental and advanced dye degradation mechanisms involved in each generation of catalysts were demonstrated.The existing challenges in TMOs-based photocatalysis and how the researchers approach the hitch to resolve it effectively are discussed.Future research trends are also presented. | Athira Krishnan Anna Swarnalal Divine Das Midhina Krishnan Viswanathan S.Saji SMAShibli | 2024 | Journal of Environmental Sciences2024，，5： | 0 |
| 12 | Does progress in microfracture techniques necessarily translate into clinical effectiveness?显示文摘BACKGROUND Multitudinous advancements have been made to the traditional microfracture(MFx)technique,which have involved delivery of various acellular 2nd generation MFx and cellular MFx-III components to the area of cartilage defect.The relative benefits and pitfalls of these diverse modifications of MFx technique are still not widely understood.AIM To comparatively analyze the functional,radiological,and histological outcomes,and complications of various generations of MFx available for the treatment of cartilage defects.METHODS A systematic review was performed using PubMed,EMBASE,Web of Science,Cochrane,and Scopus.Patients of any age and sex with cartilage defects undergoing any form of MFx were considered for analysis.We included only randomized controlled trials(RCTs)reporting functional,radiological,histological outcomes or complications of various generations of MFx for the management of cartilage defects.Network meta-analysis(NMA)was conducted in Stata and Cochrane’s Confidence in NMA approach was utilized for appraisal of evidence.RESULTS Forty-four RCTs were included in the analysis with patients of mean age of 39.40(±9.46)years.Upon comparing the results of the other generations with MFX-I as a constant comparator,we noted a trend towards better pain control and functional outcome(KOOS,IKDC,and Cincinnati scores)at the end of 1-,2-,and 5-year time points with MFx-III,although the differences were not statistically significant(P>0.05).We also noted statistically significant Magnetic resonance observation of cartilage repair tissue score in the higher generations of microfracture(weighted mean difference:17.44,95%confidence interval:0.72,34.16,P=0.025;without significant heterogeneity)at 1 year.However,the difference was not maintained at 2 years.There was a trend towards better defect filling on MRI with the second and third generation MFx,although the difference was not statistically significant(P>0.05).CONCLUSION The higher generations of traditional MFx technique utilizing acellular and cellular components to augment its potential in the management of cartilage defects has shown only marginal improvement in the clinical and radiological outcomes. | Sathish Muthu Vibhu Krishnan Viswanathan Manoharan Sakthivel Mohammed Thabrez | 2024 | World Journal of Orthopedics2024，15，3： | 0 |
| 13 | Evidence analysis on the utilization of platelet-rich plasma as an adjuvant in the repair of rotator cuff tears显示文摘BACKGROUND Platelet-rich plasma has been gaining popularity as an agent for biological augmentation either as the sole treatment modality or as an adjunct to surgical repair.There is substantial discrepancy in the results of the published meta-analyses;and the true efficacy and role of using autologous platelet-rich plasma(PRP)at the time of rotator cuff repair is still ambiguous.AIM To performed this systematic overview on the overlapping meta-analyses that analyzed autologous PRP as an adjuvant in the repair of rotator cuff tears and identify the studies which provide the current best evidence on this subject and generate recommendations for the same.METHODS We conducted independent and duplicate electronic database searches in PubMed,Web of Science,Scopus,Embase,Cochrane Database of Systematic Reviews,Reference Citation Analysis and the Database of Abstracts of Reviews of Effects on September 8,2021 to identify meta-analyses that analyzed the efficacy of PRP as an adjuvant in the repair of rotator cuff tears.Methodological quality assessment was made using Oxford Levels of Evidence,AMSTAR scoring and AMSTAR 2 grades.We then utilized the Jadad decision algorithm to identify the study with the highest quality to represent the current best evidence to generate the recommendation.RESULTS Twenty meta-analyses fulfilling the eligibility criteria were included.The AMSTAR scores of the included studies varied from 6-10(mean:7.9).All the included studies had critically low reliability in their summary of results due to their methodological flaws according to AMSTAR 2 grades.Significant heterogeneity was observed in the reporting of VAS,function outcome scores(longterm UCLA score,ASES score,SST score),operative time and long-term re-tear rates.Recent metaanalyses are more supportive of the role of intra-operative administration of PRPs at the bonetendon interface in improving the overall healing and re-tear rates,functional outcome and pain.The initial size of the tear and type of repair performed do not seem to affect the benefit of PRPs.Among the different preparations used,leucocyte poor(LP)-PRP possibly offers the greatest benefit as a biological augment in these situations.CONCLUSION Based on this systematic overview,we give a level II recommendation that intra-operative use of PRPs at the bone-tendon interface can augment the healing rate,reduce re-tears,enhance functional outcome and mitigate pain in patients undergoing arthroscopic rotator cuff repair.LPPRP possibly offers the greatest benefit in terms of healing rates,as compared with other platelet preparations. | Sathish Muthu Naveen Jeyaraman Keval Patel Girinivasan Chellamuthu Vibhu Krishnan Viswanathan Madhan Jeyaraman Manish Khanna | 2022 | World Journal of Meta-Analysis2022，10，3： | 0 |
| 14 | Is cellular therapy beneficial in management of rotator cuff tears?Meta-analysis of comparative clinical studies显示文摘BACKGROUND Mesenchymal stromal cell(MSC)-based cellular therapy promotes type I collagen production,enhance mechanical strength of tissues,and enhance biology at the bone-tendon interface,which primarily explains their potential clinical utility in rotator cuff(RC)tears.AIM To analyze the efficacy and safety of cellular therapy utilizing MSCs in the management of RC tears from clinical studies available in the literature.METHODS We conducted independent and duplicate electronic database searches including PubMed,Embase,Reference Citation Anallysis,Web of Science,and Cochrane Library in August 2021 for studies analyzing the efficacy and safety of cellular therapy(CT)utilizing MSCs in the management of RC tears.Visual Analog Score(VAS)score for pain,American Shoulder and Elbow Surgeons(ASES)score,Disability of the Arm,Shoulder,and Hand score,Constant score,radiological assessment of healing,and complications such as retear rate and adverse events were the outcomes analyzed.Analysis was performed in R-platform using OpenMeta[Analyst]software.RESULTS Six studies involving 238 patients were included for analysis.We noted a significant reduction in VAS score for pain at 3 mo(weighed mean difference[WMD]=-2.234,P<0.001)and 6 mo(WMD=-3.078,P<0.001)with the use of CT,which was not maintained at long-term follow-up(WMD=-0.749,P=0.544).Concerning functional outcomes,utilization of CT produced a significant shortterm improvement in the ASES score(WMD=17.090,P<0.001)and significant benefit in functional scores such as Constant score(WMD=0.833,P=0.760)at long-term follow-up.Moreover,we also observed significantly improved radiological tendon healing during the longterm follow-up(odds ratio[OR]=3.252,P=0.059).We also noted a significant reduction in the retear rate upon utilization of CT in RC tears both at short-(OR=0.079,P=0.032)and long-term(OR=0.434,P=0.027)follow-ups.We did not observe any significant increase in the adverse events directly related to cellular therapy,as compared with the control group(OR=0.876,P=0.869).CONCLUSION Based on our comprehensive and critical review,we could observe that the utilization of CT in RC tear significantly reduced pain severity at 3 and 6 mo,improved short-term functional outcome,enhanced radiological tendon healing,and mitigated retear rates at both short-and long-term follow-ups.The literature also confirmed the relative safety of using MSC therapy in patients presenting with RC tears. | Sathish Muthu Cheruku Mogulesh Vibhu Krishnan Viswanathan Naveen Jeyaraman Satvik N Pai Madhan Jeyaraman Manish Khanna | 2022 | World Journal of Meta-Analysis2022，10，3： | 0 |
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