检索结果-南通市图书馆

Colometer:A real-time quality feedback system for screening colonoscopy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2012年第32期18卷 4270-4277页

作者： Dobromir Filip Xuexin Gao Leticia Angulo-Rodriguez Martin P Mintchev Shane M Devlin Alaa rostom Wayne Rosen Christopher N Andrews Department of Electrical and Computer Engineering University of Calgary Calgary AB T2N 1N4 Canada Faculty of Medicine University of Calgary Calgary AB T2N 1N4 Canada

AIM:To investigate the performance of a new software-based colonoscopy quality assessment ***:The software-based system employs a novel image processing algorithm which detects the levels of image clarity,withdrawal velocity,and level of the bowel preparation in a real-time fashion from live video *** levels of image blurriness and the withdrawal velocity below which the visualization could be considered adequate have initially been determined arbitrarily by review of sample colonoscopy videos by two experienced ***,an overall colonoscopy quality rating was computed based on the percentage of the withdrawal time with adequate visualization(scored 1-5;1,when the percentage was 1%-20%;2,when the percentage was 21%-40%,etc.).In order to test the proposed velocity and blurriness thresholds,screening colonoscopy withdrawal videos from a specialized ambulatory colon cancer screening center were collected,automatically processed and *** ratings on the withdrawal were compared to the insertion in the same ***,3 experienced endoscopists reviewed the collected videos in a blinded fashion and rated the overall quality of each withdrawal(scored 1-5;1,poor;3,average;5,excellent) based on 3 major aspects:image quality,colon preparation,and withdrawal *** automated quality ratings were compared to the averaged endoscopist quality ratings using Spearman correlation ***:Fourteen screening colonoscopies were *** polyps were detected in 4/14(29%) of the collected colonoscopy video *** a proof of concept,the Colometer software rated colonoscope withdrawal as having better visualization than the insertion in the 10 videos which did not have any polyps(average percent time with adequate visualization:79% ± 5% for withdrawal and 50% ± 14% for insertion,P < 0.01).Withdrawal times during which no polyps were removed ranged from 4-12 *** median quality rating from the automa

关键词： Colonoscopy Quality assurance Quality improvement Withdrawal time Colon cancer Bowel preparation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

共晶基离子液体的钴电化学沉积(英文)

电化学 2018年第5期24卷 546-554页

作者： M.rostom Ali S Sankar Saha Md Ziaur Rahman 孟加拉共和国拉杰沙希大学应用化学化工系孟加拉共和国拉杰沙希工程技术大学化学系孟加拉共和国苏尔拉赫曼学院

通过恒电流和恒电位方法,研究了不同温度下脲-氯化胆硷(氯仿)基或乙二醇-氯化胆硷(氯仿)基离子液体中氯化钴溶液在铜和钢阴极上的钴电化学沉积行为.采用扫描电子显微镜和X射线衍射技术,考察了不同试验条件对钴电沉积行为及钴沉积层形貌... 详细信息

通过恒电流和恒电位方法,研究了不同温度下脲-氯化胆硷(氯仿)基或乙二醇-氯化胆硷(氯仿)基离子液体中氯化钴溶液在铜和钢阴极上的钴电化学沉积行为.采用扫描电子显微镜和X射线衍射技术,考察了不同试验条件对钴电沉积行为及钴沉积层形貌的影响.结果表明,当沉积电位达到-0.8 V和沉积电流密度达到-6.0 A·m^(-2)时,温度范围从30°C到90°C,添加0.05 mol·L^(-1)的五氧化二磷,可以从脲基和乙二醇基离子液体中沉积得到光滑、发亮和良好结合力的金属光泽钴层.电化学沉积钴的阴极电流效率达到98%.

关键词：电化学沉积共晶溶剂离子液体钴循环伏安

Should a VP or LP Shunt be Used for the Treatment of Pseudotumorcerebri in Adults?

在线全文

学校读者我要写书评

暂无评论

Open Journal of Modern Neurosurgery 2023年第4期13卷 149-155页

作者： Hassan Kadri Raed Abouharb rostom Mackieh Rafik Haider Tim Kadri Faculty of Medicine Department of Neurosurgery Damascus University Damascus Syria Faculty of Medicine Department of Internal Medicine Damascus University Damascus Syria Department of Statistics MSRC Damascus Syria

Introduction: Pseudotumorcerebri(PTC) is a condition characterized by false brain tumor symptoms, caused by high intracranial pressure (ICP). Treatment options include medication, weight loss, surgery, and shunting. Shunting, either ventriculoperitoneal (VP) or lumboperitoneal (LP), emerged as the preferred method of treatment, but there is an ongoing debate as to which technique should be prioritized. The aim of this study is to gather additional evidence to determine the optimal type of shunt for treating PTC. Materials and Methods: Ninety patients with PTC were studied at Damascus University between 2016 and 2021. The study monitored symptoms before and after treatment, with improvement related to the technique used (VP or LP shunts). Of all patients, 83 were women and 7 were men. In addition, complications were analyzed. Results: Both shunts showed similar postoperative rates of symptom improvement, but VP shunts were utilized more frequently overall in this study. Patients who received LP shunt surgery had a higher rate of postoperative complications compared to those who received VP shunt surgery, but the chi-squared analysis did not provide sufficient evidence to confirm a significant relationship between the type of surgery and the occurrence of postoperative complications. Conclusion: Despite ongoing controversy about the optimal treatment for benign intracranial hypertension (BTC), most authors approved the trend of using VP (ventriculoperitoneal) shunts, given a lower rate of complications. However, there is no statistically significant difference between outcomes of VP and LP (lumboperitoneal) shunting techniques, according to our research.

关键词： Pseudotumorcerebri (PTC) Benign Intracranial Hypertension (BTC) Ventriculoperitoneal (VP) Shunt Lumboperitoneal (LP) Shunt Cerebrospinal Fluid (CSF)

采用AlCl3-EMIC-MgCl2室温离子液体电沉积制备铝-镁合金

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

电化学 2015年第2期21卷 172-180页

作者： M.rostom Ali Andrew P.Abbott Karl S.Ryder 莱斯特大学化学系英国莱斯特LE17RH 拉杰沙溪大学应用化学与化工系孟加拉共和国拉杰沙溪-6205

采用恒电流和恒电位技术,以及路易斯酸氯化铝(III)-1-乙基-3-甲基咪唑氯化物离子液体中添加氯化镁(II),室温下在铂和铜阴极表面电沉积制备了铝-镁合金.合金层中镁的含量随离子液体中氯化镁浓度和所施加的阴极电流密度的增加而增加.采用X... 详细信息

采用恒电流和恒电位技术,以及路易斯酸氯化铝(III)-1-乙基-3-甲基咪唑氯化物离子液体中添加氯化镁(II),室温下在铂和铜阴极表面电沉积制备了铝-镁合金.合金层中镁的含量随离子液体中氯化镁浓度和所施加的阴极电流密度的增加而增加.采用X-射线衍射谱(XRD)、扫描电子显微镜(SEM)和能量散射X-射线谱(EDAX)技术,研究了不同电沉积实验条件得到的电沉积层的晶体结构及表面形貌.增加沉积电流密度,可以制备出致密、光亮和结合力良好的电沉积层.铝-镁合金电沉积的阴极电流效率可达99%.应用电化学石英晶体微天平(EQCM)技术研究了电沉积合金的组成.根据重声阻抗分析得到的质量-电荷(m-Q)曲线斜率计算了金属共沉积层的化学成分.

关键词：电沉积铝一镁合金离子液体循环伏安恒电位

基于氯化胆碱离子液体的铜电沉积研究(英文)

在线全文

学校读者我要写书评

暂无评论

电化学 2014年第2期20卷 139-145页

作者： M.rostom Ali Md.Ziaur Rahman S.SankarSaha 拉杰沙希大学应用化学和化学工程系

采用恒电流和恒电位方法,基于含有氯化铜溶液的乙二醇-氯化胆碱或硫脲-氯化胆碱离子液体,室温下在钢阴极上进行了铜的电沉积.利用扫描电子显微镜和X-射线衍射技术研究了各种实验条件对电沉积的影响以及沉积层的形貌.结果表明,室温下施... 详细信息

采用恒电流和恒电位方法,基于含有氯化铜溶液的乙二醇-氯化胆碱或硫脲-氯化胆碱离子液体,室温下在钢阴极上进行了铜的电沉积.利用扫描电子显微镜和X-射线衍射技术研究了各种实验条件对电沉积的影响以及沉积层的形貌.结果表明,室温下施加不超过-0.45 V的沉积电位和不超过-4.0 A·m-2的沉积电流密度,可以同时从氯化胆碱基乙二醇和硫脲离子液体中沉积得到非常光滑、有光泽、致密且具有良好结合力、色泽鲜艳的铜金属涂层.铜的电沉积阴极电流效率约为97%.

关键词：电沉积乙二醇-氯化胆碱硫脲-氯化胆碱铜循环伏安法

Rural Tourism and Sustainable Development

在线全文

学校读者我要写书评

暂无评论

Management Studies 2019年第5期7卷 443-446页

作者： rostom Beridze Batumi Shota Rustaveli State University BatumiGeorgia

The solving of economical and social development problems of rural populated area has particular urgency nowadays. It should be noted that the development of rural tourism is perspective and it gives opportunity to fully use the potential of populated rural area. The objective of research is to study the opportunities of rural tourism development in Georgia and in mountainous region of Adjara. Therefore, the main questions discussed in paper are: to analyze the employment opportunities for the population of rural areas;to foresee the possible secondary income, how to reduce the migration of rural population, especially the youth;possibility to supply the locally produced goods and service and to increase their awareness;and possibilities to develop the industries related to tourism. The joint efforts of government, municipal authorities, and business providers, with the involvement of rural area inhabitants are essential for the development of populated rural territories. The special attention should be addressed to the social initiatives and economic activities of local people through the involvement in the tourism sector development. The rural tourism and entrepreneurship development provide the possibility to solve the main social-economic problems of rural inhabitants.

关键词： rural tourism sustainable development tourism policy

The Relationship between Bone Mineral Density and Dietary Intake in Moroccan Children with Juvenile Idiopathic Arthritis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2012年第5期3卷 400-406页

作者： A.Hassani S.rostom D.El Badri I.Bouaadi A.Barakat B.Chkirat K.Elkari R.Bahiri B.Amine N.Hajjaj-Hassouni Department of Rheumatology El Eyachi HospitalUniversity Hospital of Rabat-SaleSaleMorocco Department of Pediatrics Hospital of ChildrenUniversity Hospital of Rabat-SaleRabatMorocco Department of Nutrition Faculty of Science of KenitraUniversity Ibn TofailKenitraMorocco

Background and objective: The aim of this study was to evaluate the association between dietary intake and bone mineral density in children with juvenile idiopathic arthritis (JIA). Methods: A cross-sectional study carried out in Morocco between May 2010 and June 2011, covering out patients with JIA. The characteristics of patients were collected. The nutritional status was assessed by a food questionnaire including data of food intake during 7 consecutive days using 24-hour dietary recall. Food intake was quantified using the software Bilnut (Bilnut version 2.01, 1991). Bone mineral density (BMD in g/cm2) was measured by DXA method (X-ray absorptiometry) on a Lunar Prodigy. Results: The study consisted of 33 patients with JIA (4 - 16 years old). The median age of patients was 10.4 ± 4.3 years. Median disease duration was 2 (1 - 4.5) years. The group of patients with low dietary intake of proteins was associated with low BMD (p = 0.03). Low BMD was related with low intake of magnesium (p = 0.007) and vitamin C (p = 0.04) in children aged between 4 and 9 years. Low intake of vitamin E and folate was associated with high BMD in the other range of children (p < 0.001). Conclusion: This study suggests that low intake of protein and of some micronutrients (magnesium, vitamin C, vitamin E and folate) influence bone mass in children with JIA. Prospective studies with a larger number of patients seem to be necessary in order to confirm our findings.

关键词： Juvenile Idiopathic Arthritis Macronutrients Vitamins Trace Elements Bone Mineral Density

海沙钛铁矿在硫酸溶液中的电化学溶解研究（英文）

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

电化学 2017年第4期23卷 420-428页

作者： M.rostomAli R.K.Biswas Md.Golam Zakaria 拉杰沙希大学应用化学与化学工程系

采用电化学技术研究了孟加拉国海沙里钛铁矿在硫酸溶液中不同温度下的溶解行为.循环伏安研究表明,在没有添加碳粉的条件下钛铁矿的溶解非常困难.为探明钛铁矿的溶解过程,考察了钛铁矿-碳比例、硫酸浓度和温度对钛铁矿电化学溶解行为的影... 详细信息

采用电化学技术研究了孟加拉国海沙里钛铁矿在硫酸溶液中不同温度下的溶解行为.循环伏安研究表明,在没有添加碳粉的条件下钛铁矿的溶解非常困难.为探明钛铁矿的溶解过程,考察了钛铁矿-碳比例、硫酸浓度和温度对钛铁矿电化学溶解行为的影响.结果显示,钛铁矿在低还原电位和低温下的溶解速率较慢.施加更负的还原电位和在较高的温度下溶解速率加快.增加硫酸浓度(最大浓度达到1 mol·L^(-1))也可提高溶解速率,但在较高的硫酸浓度和还原电位下,由于氢气析出导致钛铁矿的溶解速率降低且气体吸附,最后使得钛铁矿的活性表面积减小.计算得到活化能数值在高温区间为50±10 kJ·mol^(-1),而低温区间为~15±5 kJ·mol^(-1),说明低温区间为扩散控制过程,而高温区间为化学控制过程.

关键词：钛铁矿循环伏安电化学溶解活化能硫酸

在线全文

学校读者我要写书评

暂无评论

A surgeon＇s hands

英国医学杂志中文版 2015年第4期18卷 149-149页

作者： Mai rostom Aberdeen Royal Infirmary Foresterhill Road Aberdeen AB252ZN UK

记得当我年轻刚入行的时候,有人经常羡慕地看着我的手,有意地笑着说:“你有一双外科医生的手.”这是一句赞美的话,因为通常情况下这是说你的手很柔美,手指细长而灵活,皮肤柔软白皙.医生的手不同于劳动人民的手,医生的手是用来做精细工作... 详细信息

记得当我年轻刚入行的时候,有人经常羡慕地看着我的手,有意地笑着说:“你有一双外科医生的手.”这是一句赞美的话,因为通常情况下这是说你的手很柔美,手指细长而灵活,皮肤柔软白皙.医生的手不同于劳动人民的手,医生的手是用来做精细工作的,是创作艺术的——至少我是这么想的.5年后,也就在昨天,当我完成了一天的手术后,我感到右手大拇指的一侧一阵剧痛.我摘掉手术手套,发现以前的旧伤又复发了.瞧,就在这,拇指内侧的一个老茧,刚好就在我总拿持针器的地方,而且已经有5年了.

关键词：医生外科艺术创作愈伤组织劳动者角质层拇指灵巧