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47篇 您的检索式:作者名="Dhaka"
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1Endoscopic incisional therapy for benign esophageal strictures: Technique and results显示文摘Benign esophageal strictures refractory to the conventional balloon or bougie dilatation may be subjected to various adjunctive modes of therapy, one of them being endoscopic incisional therapy(EIT). A proper delineation of the stricture anatomy is a prerequisite. A host of electrocautery and mechanical devices may be used, the most common being the use of needle knife, either standard or insulated tip. The technique entails radial incision and cutting off of the stenotic rim. Adjunctive therapies, to prevent re-stenosis, such as balloon dilatation, oral or intralesional steroids or argon plasma coagulation can be used. The common strictures where EIT has been successfully used are Schatzki's rings(SR) and anastomotic strictures(AS). Short segment strictures(< 1 cm) have been found to have the best outcome. When compared with routine balloon dilatation, EIT has equivalent results in treatment na?ve cases but better long term outcome in refractory cases. Anecdotal reports of its use in other types of strictures have been noted. Post procedure complications of EIT are mild and comparable to dilatation therapy. As of the current evidence, incisional therapy can be used for management of refractory AS and SR with relatively short stenosis(< 1 cm) with good safety profile and acceptable long term patency.Jayanta Samanta Narendra Dhaka Saroj Kant Sinha Rakesh Kochhar 2015World Journal of Gastrointestinal Endoscopy2015,7,19:14
2Pancreatic fluid collections: What is the ideal imaging technique?显示文摘Pancreatic fluid collections(PFCs) are seen in up to 50% of cases of acute pancreatitis. The Revised Atlanta classification categorized these collections on the basis of duration of disease and contents, whether liquid alone or a mixture of fluid and necrotic debris. Management of these different types of collections differs because of the variable quantity of debris; while patients with pseudocysts can be drained by straight-forward stent placement, walledoff necrosis requires multi-disciplinary approach. Differentiating these collections on the basis of clinical severity alone is not reliable, so imaging is primarily performed. Contrast-enhanced computed tomography is the commonly used modality for the diagnosis and assessment of proportion of solid contents in PFCs; however with certain limitations such as use of iodinated contrast material especially in renal failure patients and radiation exposure. Magnetic resonance imaging(MRI) performs better than computed tomography(CT) in characterization of pancreatic/peripancreatic fluid collections especially for quantification of solid debris and fat necrosis(seen as fat density globules), and is an alternative in those situations where CT is contraindicated. Also magnetic resonance cholangiopancreatography is highly sensitive for detecting pancreatic duct disruption and choledocholithiasis. Endoscopic ultrasound is an evolving technique with higher reproducibility for fluid-to-debris component estimation with the added advantage of being a single stage procedure for both diagnosis(solid debris delineation) and management(drainage of collection) in the same sitting. Recently role of diffusion weighted MRI and positron emission tomography/CT with ^(18)F-FDG labeled autologous leukocytes is also emerging for detection of infection noninvasively. Comparative studies between these imaging modalities are still limited. However we look forward to a time when this gap in literature will be fulfilled.Narendra Dhaka Jayanta Samanta Suman Kochhar Navin Kalra Sreekanth Appasani Manish Manrai Rakesh Kochhar 2015World Journal of Gastroenterology2015,21,48:13
3基于拉曼光谱技术检测菠菜的毒死蜱残留显示文摘目的基于拉曼光谱技术初步探讨菠菜表面有机磷农药毒死蜱的快速、无损检测新方法。方法利用本研究自行搭建的拉曼光谱检测系统获取残留不同浓度毒死蜱农药的菠菜光谱曲线,通过SG-5点平滑减小曲线噪声,基于最小二乘法的10次多项式拟合法剔除菠菜荧光背景,并对含有不同浓度毒死蜱农药的菠菜样品拉曼图谱进行比较分析。结果特征归属为P=S振动的632 cm-1处的拉曼信号可识别菠菜表面毒死蜱农药残留,其检测限为400 mg/kg,而且拉曼特征波峰的相对强度与菠菜表面农药残留浓度存在较好的线性关系,其相关系数为R2=0.92。结论拉曼光谱技术有望实现叶片类蔬菜的农药残留的快速、无损、定量检测。徐田锋 彭彦昆 李永玉 DHAKA LSagar 翟晨 2014食品安全质量检测学报2014,5,3:4
4Role of percutaneous cerclage wire in the management of subtrochanteric fractures treated with intramedullary nails显示文摘PurposeCerclage 电线申请作为潜在的治疗学的附属物出现了到为 subtrochanteric 破裂钉的 intramedullary。但是它的流行被可能的否定效果的担心在破裂地区生物学上折磨。这研究被打算分析与 cerclage 电线 application.MethodsRetrospective 分析联系的 clinico 放射学的结果和复杂并发症在破裂操作了, intramedullary 在 2012 年 1 月和 2016 年 1 月之间钉的所有 subtrochanteric 上被执行。在排除以后, 48 个病人与 20.8 个月的平均后续是可得到的。长倾斜,有蝴蝶碎片的螺线,螺线楔或弄碎的破裂配置特别地为 cerclage 电线申请被考虑,它被经皮的 cerclage passer 在 21 个病人采用。评价到鸫类 dAubigne-Postel score.ResultsAverage 操作时间以操作时间,血损失,减小的质量,颈柄角度,后续排水量,联合时间,复杂并发症,和最后的功能的评估被做,血损失在 cerclage 组是显著地更高的(p ?Vivek Trikha Saubhik Das Prabhat Agrawal Arkesh M Sunil Kumar Dhaka 2018Chinese Journal of Traumatology2018,21,1:4
5利用拉曼光谱技术识别溴氰菊酯和啶虫脒农药的研究显示文摘目的初步建立溴氰菊酯农药和啶虫脒农药的拉曼光谱研究方法。方法利用激光拉曼光谱技术,将农药溶液装满铝盒,采集农药溶液的拉曼光谱曲线,运用自主编写的程序对光谱曲线进行预处理,以去除光谱噪音并扣除荧光背景,进而探讨溴氰菊酯农药和啶虫脒农药的快速无损检测方法。结果溴氰菊酯农药和啶虫脒农药的拉曼特征频率较为丰富,选取574 cm-1、736 cm-1处的拉曼信号可识别溴氰菊酯农药,检测限为2500mg/kg。选取752 cm-1、840 cm-1处的拉曼信号可识别啶虫脒农药,当溶剂的丙酮-水比例为1:5时,最适合作为检测溶剂配置啶虫脒农药溶液,为下一步确定啶虫脒检测限奠定基础。结论本研究对实现拉曼光谱技术检测果蔬表面溴氰菊酯农药和啶虫脒农药具有重要意义。郭浪花 彭彦昆 李永玉 DHAKA LSagar 陶斐斐 2014食品安全质量检测学报2014,5,3:3
6Trp ion channels and tem- perature sensation 显示文摘Dhaka A Viswanath V Patapoutian A 2006Annu Rev Neurosei2006,29,:1
7TRPM8 is required for cold sensation in mice显示文摘Dhaka A Murray AN Mathur J etc 2007Neuron2007,54,3:1
8Instant noodles: processing, quality, and nutritional aspects 显示文摘Gulia N Dhaka V Khatkar B S 2014Critical Reviews in Food Science and Nutrition2014,54,10:1
9Magnetic coildesign considerations for functional magnetic stimula- tion显示文摘LIN V W H HSIAO I N DHAKA V 2000IEEE Transactions on Biomedical Engineer- ing2000,47,5:1
10TRP ion channels and tem- perature sensation 显示文摘Dhaka A Viswanath V Patapoutian A 2006Annu Rev Neurosci2006,,29:1
11Instant noodles:Processing,ouality,and nutritional aspects显示文摘GULIA N DHAKA V KHATKAR B S 2014Critical Reviews in food Science and Nutrition2014,54,10:1
12TRPM8 is required for cold sensation in mice 显示文摘Dhaka A Murray AN Mathur J 2007Neuron2007,54,3:1
13Augmented digestion of lignocellulose by steam explosion,acid and alkaline pretreatment methods:A review显示文摘SINGH J SUHAG M DHAKA A 2015Carbohydrate Polymers2015,117,:1
14TRPM8 is required for cold sensation in mice显示文摘Dhaka A Murray AN Mathur J 2007Neuron2007,3,:1
15TRP ion channels and temperature sensation 显示文摘DHAKA A VISWANATH V PATAPOUTIAN A 2006Annu Rev Neurosci2006,29,:1
16Trp ion chan- nels and temperature sensation 显示文摘Dhaka A Viswanath V Patapoutian A 2006Annu Rev Neuros- ci2006,29,:1
17Augmented digestion of lignocellulose by steam explosion, acid and alkaline pre- treatment methods: A review显示文摘J Singh M Suhag A Dhaka 2015Carbohydrate Polymers2015,117,0:1
18Thickness Dependent Physical Properties of Thermally Evaporated Nanocrystalline CdSe Thin Films显示文摘This paper presents a study on thickness dependent physical properties of cadmium selenide thin films. The films of thickness 445, 631 and 810 nm were deposited employing thermal evaporation technique on glass and ITO-coated glass substrates followed by thermal annealing in air atmosphere at 200 °C. These films were subjected to X-ray diffractometer, UV–Vis spectrophotometer, scanning electron microscopy(SEM) and electrometer for structural, optical,surface morphological and electrical analysis respectively. The structural analysis reveals that the films are nanocrystalline in nature with cubic phase and preferred orientation(111). The crystallographic parameters such as lattice constant, interplanar spacing, grain size, internal strain, dislocation density, number of crystallites per unit area and texture coefficient are calculated and discussed. The optical band gap is found in the range 1.75–1.92 e V and observed to increase with thickness.The SEM study shows that the annealed films are uniform, fully covered and well defined. The electrical analysis shows that the conductivity is varied with film thickness and found within the order of semiconductor behavior.Anuradha Purohit Subhash Chander Satya Pal Nehra Mahendra Singh Dhaka 2015Acta Metallurgica Sinica(English Letters)2015,28,10:1
19The RAS effector RIN1directly competes with RAF and is regulated by 14-3-3 proteins显示文摘Wang Y Waldron RT Dhaka A 2002Mol Cell Biol2002,22,3:1
20Magnetic coildesign consid-erations for functional magnetic stimulation显示文摘Lin V W H Hsiao I N Dhaka V 0,,05:1
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