维普中文期刊产品整合服务
151篇 您的检索式:作者名="Rajneesh"
    题名 作者 年代 出处 被引量
1Anterior resection for rectal carcinoma-risk factors for anastomotic leaks and strictures显示文摘AIM:To determine the incidence and factors responsible for anastomotic leaks and stricture following anterior resection(AR)and its subsequent management.METHODS:Retrospective analysis of data from 108 patients with rectal carcinoma who underwent AR or low anterior resection(LAR)to identify the various preoperative,operative,and post operative factors that might have influence on anastomotic leaks and strictures.RESULTS:There were 68 males and 40 females with an average of 47 years(range 21-75 years).The median distance of the tumor from the anal verge was 8 cm(range 3-15 cm).Sixty(55.6%)patients underwent handsewn anastomosis and 48(44.4%)were stapled.The median operating time was 3.5 h(range2.0-7.5 h).Sixteen(14.6%)patients had an anastomotic leak.Among these,11 patients required reexploration and five were managed expectantly.The anastomotic leak rate was similar in patients with and without diverting stoma(8/60,13.4%with stoma and 8/48;16.7%without stoma).In 15(13.9%)patients,resection margins were positive for malignancy.Ninteen(17.6%)patients developed anastomotic strictures at a median duration of 8 mo(range 3-20 mo).Among these,15 patients were successfully managed with per-anal dilatation.On multivariate analysis,advance age(>60 years)was the only risk factor for anastomotic leak(P=0.004).On the other hand,anastomotic leak(P=0.00),mucin positive tumor(P =0.021),and lower rectal growth(P=0.011)were found as risk factors for the development of an anastomotic stricture.CONCLUSION:Advance age is a risk factor for an anastomotic leak.An anastomotic leak,a mucin-secreting tumor,and lower rectal growth predispose patients to develop anastomotic strictures.Ashok Kumar Ram Daga Paari Vijayaragavan Anand Prakash Rajneesh Kumar Singh Anu Behari Vinay K Kapoor Rajan Saxena 2011World Journal of Gastroenterology2011,17,11:28
2Ginkgolide B promotes the proliferation and differentiation of neural stem cells following cerebral ischemia/reperfusion injury,both in vivo and in vitro显示文摘Neural stem cells have great potential for the development of novel therapies for nervous system diseases.However,the proliferation of endogenous neural stem cells following brain ischemia is insufficient for central nervous system self-repair.Ginkgolide B has a robust neuroprotective effect.In this study,we investigated the cell and molecular mechanisms underlying the neuroprotective effect of ginkgolide B on focal cerebral ischemia/reperfusion injury in vitro and in vivo.Neural stem cells were treated with 20,40 and 60 mg/L ginkgolide B in vitro.Immunofluorescence staining was used to assess cellular expression of neuron-specific enolase,glial fibrillary acid protein and suppressor of cytokine signaling 2.After treatment with 40 and 60 mg/L ginkgolide B,cells were large,with long processes.Moreover,the proportions of neuron-specific enolase-,glial fibrillary acid protein-and suppressor of cytokine signaling 2-positive cells increased.A rat model of cerebral ischemia/reperfusion injury was established by middle cerebral artery occlusion.Six hours after ischemia,ginkgolide B(20 mg/kg) was intraperitoneally injected,once a day.Zea Longa's method was used to assess neurological function.Immunohistochemistry was performed to evaluate the proportion of nestin-,neuron-specific enolase-and glial fibrillary acid protein-positive cells.Real-time quantitative polymerase chain reaction was used to measure m RNA expression of brain-derived neurotrophic factor and epidermal growth factor.Western blot assay was used to analyze the expression levels of brain-derived neurotrophic factor and suppressor of cytokine signaling 2.Ginkgolide B decreased the neurological deficit score,increased the proportion of nestin-,neuron-specific enolase-and glial fibrillary acid protein-positive cells,increased the m RNA expression of brain-derived neurotrophic factor and epidermal growth factor,and increased the expression levels of brain-derived neurotrophic factor and suppressor of cytokine signaling 2 in the ischemic penumbra.Together,the in vivo and in vitro findings suggest that ginkgolide B improves neurological function by promoting the proliferation and differentiation of neural stem cells in rats with cerebral ischemia/reperfusion injury.Pei-Dong Zheng Rajneesh Mungur Heng-Jun Zhou Muhammad Hassan Sheng-Nan Jiang Jie-Sheng Zheng 2018Neural Regeneration Research2018,13,7:21
3AA5083铝合金的搅拌摩擦焊接工艺参数对搅拌头受力和热输入的影响(英文)显示文摘采用系统实验设计方法研究AA5083铝合金搅拌摩擦焊接工艺参数对搅拌头受力和热量输入的影响,得到了用来设计搅拌摩擦焊搅拌头和焊机的经验模型。当采用计算机来控制搅拌摩擦焊接时,这些模型可用来确定AA5083这类铝合金的摩擦焊接工艺参数、编制焊接程序及工艺参数控制。结果表明:影响轴向力和热量输入的重要参数是搅拌头转速、焊接速度和搅拌头轴肩直径,而影响纵向应力的重要参数是焊接速度和探头直径。Rajneesh KUMAR Kanwer SINGH Sunil PANDEY 2012Transactions of Nonferrous Metals Society of China2012,22,2:10
4早期常压高氧治疗对大鼠颅脑损伤后线粒体功能及细胞凋亡的影响显示文摘目的探讨早期常压高氧治疗对大鼠颅脑损伤后线粒体功能及细胞凋亡的保护作用及其机制。方法将成年健康雄性大鼠分为假手术组、模型组、高压氧组及常压氧组,每组28只。于伤后1周行神经功能缺损评分,并检测线粒体膜电位(MMP)、丙二醛(MDA)和超氧化物歧化酶(SOD)的变化。观察各组电镜下线粒体形态,并采用原位缺口末端标记(TUNEL)法检测神经细胞凋亡情况。结果四组间神经功能缺损评分比较差异有统计学意义(F=3.682,P=0.039),且常压氧组与高压氧组较模型均明显改善(P均<0.05)。四组间MMP、MDA、SOD及阳性细胞计数比较,差异均有统计学意义(F=8.571、12.4、6.604、9.425,P均<0.05),与模型组比较,常压氧组及高压氧组的MMP均明显升高,MDA、SOD及阳性细胞计数均明显下降(P均<0.05),而高压氧组与常压氧组的MMP、MDA、SOD及阳性细胞计数比较,差异均无统计学意义(P均>0.05)。电镜下,模型组线粒体膜出现断裂、形态较大、肿胀明显,线粒体内出现空泡化,线粒体嵴消失;而常压氧及高压氧组线粒体膜基本完整,肿胀程度较模型组轻微,线粒体嵴尚存在,未见明显空泡化现象,且后两者线粒体形态差异不明显。结论早期常压氧治疗通过保护线粒体结构和功能从而抑制缺血半影区的细胞凋亡,以促进大鼠脑外伤后的神经功能的恢复。朱岁军 刘晨 王俊 唐超 单华 李伟 Rajneesh Mungur 沈建 2015中华危重症医学杂志(电子版)2015,8,1:6
5Uniqueness,reciprocity theorem,and plane waves in thermoelastic diffusion with a fractional order derivative显示文摘In this work, a theory of thermoelasticity with diffusion is taken into consideration by using the methodology of fractional calculus. The governing equations for particle motion in a homogeneous anisotropic fractional order generalized thermoelastic diffusive medium are presented. Uniqueness and reciprocity theorems are proved. The plane wave propagation in the homogeneous transversely isotropic thermoelastic diffusive medium with fractional order derivative is studied. For the two-dimensional problem, there exist a quasi-longitudinal wave, a quasi-transverse wave, a quasi-mass diffusion wave, and a quasi-thermal wave. From the obtained results, the different characteristics of waves, like phase velocity, attenuation coefficient, specific loss, and penetration depth, are computed numerically and presented graphically. Some special cases are also discussed.Rajneesh Kumar Vandana Gupta 2013Chinese Physics B2013,22,7:4
6Experimental Study of Parameters of a Plasma Antenna显示文摘一个表面波浪激动的血浆列能充当一条血浆天线。实验被执行学习电流和传导性如此的一条血浆天线的分布,领域,功率模式,择向性和效率。另外,一条相等的金属性的铜天线被建立,它的天线参数与血浆天线的相比。我们的调查结果显示在血浆天线的泛音的力量内容是与铜天线相比同样突出的更多(它仅仅产生基本频率) 。然而,为两条天线的力量模式是相当类似的。在血浆天线的领域里关于泛音的产生提供更质的理解,双性人光谱的分析被执行在当前的变化学习非线性的相互作用。血浆天线的一些特定的特征在我们的学习被调查,它可以关于常规金属性的天线提高血浆天线的申请前景。Rajneesh KUMAR Dhiraj BORA 2010Plasma Science and Technology2010,12,5:3
7Change in model for end-stage liver disease score at two weeks,as an indicator of mortality or liver transplantation at 60 days in acute-on-chronic liver failure显示文摘Background:Acute-on-chronic liver failure(ACLF)is characterised by a sudden deterioration of underlying chronic liver disease,resulting in increased rates of mortality and liver transplantation.Early prognostication can benefit optimal allocation of resources.Methods:ACLF was defined as per the disease criteria of the Asian Pacific Association for the Study of the Liver.Inpatient discharge summaries from between January 2001 and April 2013 were reviewed.The primary outcome was mortality or liver transplantation within 60 days from onset of ACLF.Absolute‘model for end-stage liver disease’(MELD)score and change in MELD at Weeks 1,2 and 4 were reviewed in order to identify the earliest point for prediction of mortality or liver transplantation.Results:Clinical data were collected on 53 subjects who fulfilled the inclusion and exclusion criteria.At 60 days from presentation,20 patients(37.7%)died and 4(7.5%)underwent liver transplantation.Increased MELD of-2 after 2 weeks was 75.0%sensitive and 75.9%specific for predicting mortality or liver transplantation.If the MELD score did not increase at 2 weeks,predictive chance of survival was 93.8%over the next 60 days.MELD change at 1 week showed poor sensitivity and specificity.Change at 4 weeks was too late for intervention.Conclusion:Change in MELD score at 2 weeks provides an early opportunity for prognostication in ACLF.A MELD score that does not deteriorate by Week 2 would predict 93.8%chance of survival for the next 60 days.This finding warrants further validation in larger cohort studies.Rajneesh Kumar Thinesh Lee Krishnamoorthy Hiang Keat Tan Hock Foong Lui Wan Cheng Chow 2015Gastroenterology Report2015,3,2:2
8Surgical strategies in patients with gallbladder cancer: Nihilism to optimism显示文摘Sadiq S.Sikora Rajneesh K.Singh 2006Oncol2006,,8:2
9Propagation of waves in an electro-microstretch generalized thermoelastic semi-space显示文摘Department of Mathematics, Kurukshetra University,Kurukshetra 136119, India The present investigation is concerned with wavepropagation in an electro-microstretch generalized thermo-elasticsolid half space. Two different cases have beendiscussed: (i) reflection of plane wave at the free surfaceof an electro-microstretch generalized thermoelastic solid;and (ii) propagation of Rayleigh waves in an electro-microstretchgeneralized thermoelastic solid half space. In case (i),the amplitude ratios of the various reflected waves have beencomputed numerically and depicted graphically against angleof incidence. In case (ii), the frequency equation is derivedand dispersion curves giving phase velocity and attenuationcoefficient as a function of wave number, have been plottedgraphically for a specific model. Some special cases ofinterest are also deduced, for both the cases. Amplitude ratios;;Electro-microstretch thermoelastic solid;;Frequency equation;;RayleighRajneesh Kumar.Rupender 2009Acta Mechanica Sinica2009,25,5:2
10Response of fuzzy clustering on different threshold determination algorithms in spectral change vector analysis over Western Himalaya, India显示文摘Change detection is a standard tool to extract and analyze the earth's surface features from remotely sensed data. Among the different change detection techniques, change vector analysis(CVA) have an exceptional advantage of discriminating change in terms of change magnitude and vector direction from multispectral bands. The estimation of precise threshold is one of the most crucial task in CVA to separate the change pixels from unchanged pixels because overall assessment of change detection method is highly dependent on selected threshold value. In recent years, integration of fuzzy clustering and remotely sensed data have become appropriate and realistic choice for change detection applications. The novelty of the proposed model lies within use of fuzzy maximum likelihood classification(FMLC) as fuzzy clustering in CVA. The FMLC based CVA is implemented using diverse threshold determination algorithms such as double-window flexible pace search(DFPS), interactive trial and error(T&E), and 3×3-pixel kernel window(PKW). Unlike existing CVA techniques, addition of fuzzy clustering in CVA permits each pixel to have multiple class categories and offers ease in threshold determination process. In present work, the comparative analysis has highlighted the performance of FMLC based CVA overimproved SCVA both in terms of accuracy assessment and operational complexity. Among all the examined threshold searching algorithms, FMLC based CVA using DFPS algorithm is found to be the most efficient method.SINGH Sartajvir TALWAR Rajneesh 2017Journal of Mountain Science2017,14,7:2
11Pancreaticanastomose after pancreasticeduodenectomy: do we need further studies显示文摘Shrikbande SV Qureshi SS Rajneesh N 2005World J Surg2005,29,12:1
12A Reconfigurable Plasma An-tenna显示文摘Rajneesh Kumar Dhiraj Bora 2010Journal of Applied Physics2010,107,:1
13各向同性弹性半空间与带孔隙横观各向同性热弹性材料界面上波的传播显示文摘在一各向同性弹性半空间上覆盖一层带孔隙的横观各向同性热弹性材料时,研究孔隙对表面波传播的影响.建立'焊接'接触及光滑接触界面条件下的数学模型,导出其频率方程.用图形给出相速度和衰减系数随波数的变化曲线,描述了'焊接'接触界面条件时孔隙和各向异性的影响.得到了'焊接'接触时的单位损耗,以及体积率场、正应力、温度变化的幅值,并对一组特殊模型用图形描述了孔隙和各向异性的影响.研究中还推演出一些特例.Rajneesh库玛 Rajeev库玛 2010应用数学和力学2010,31,9:1
14Innovation through strategic alliance: moving towards international partnerships and contractual agreement 显示文摘 John H 1999Technavation1999,19,:1
15Prediction of raceway size in blast furnace from two dimensional experimental correlations显示文摘RAJNEESH S SARKAR S GUPTA G S 2004ISIJ International2004,44,8:1
16Pancreatic anastomoses after pancreaticoduodenectomy: do we need further studies?显示文摘Shrikhande SV Qureshi SS Rajneesh N 2005World J Surg2005,29,12:1
17The Effects of Time Constraints on Consumers' Judgments of Prices and Products显示文摘RAJNEESH SURI KENT B MONROE 2003Journal of Consumer Research2003,30,1:1
18Choosing Between Internal and Non-internal R&D Activities: Some Technological and Eco-nomic Factors显示文摘Rajneesh Narula 2001Technology Analysis and Strategic Management2001,13,3:1
19Salicylic acid alleviates aluminum toxicity in rice seedlings better than magnesium and calcium by reducing aluminum uptake, suppressing oxidative damage and increasing antioxidative defense显示文摘Poonam Pandey Rajneesh Kumar Srivastava R. S. Dubey 2013Ecotoxicology2013,,4:1
20Application of digital image magnification for surface roughness evaluation using machine vision显示文摘Rajneesh Kumar 2005International Journal of Machine Tools and Manufacture2005,45,2:1
返回顶部 每页显示:
共8页 首页 上一页 第1页 下一页 末页 /8 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