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Environmental Assessment and Analysis of Chemical Properties of Drinking Water Using Geo-Spatial Technologies: Examples from Lahore Metropolitan

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Advances in Remote Sensing 2018年第3期7卷 259-275页

作者： Ali Imam Mirza Ali Iqtadar Mirza Tabasam Jamal Syed Shehzad Hassan Muhammad A. Butt atif Ali Hafsa Batool Rashid Mahmood Attia Naz Azam Sohail Imran Saddique Kaukab Sana Alvi Javed Ahmad Safeer Ali Muneeb Aamir Azeem Akhtar Arshad Javed Department of Geography GC University Lahore Pakistan Remote Sensing Group Department of Space Science University of the Punjab Lahore Pakistan

The contamination of drinking water in Pakistan is a serious threat to its citizens. Urbanization leads to an increased demand of drinking water supply that leads to excessive drawdown that further causes lowering of water table. The current WASA (Water and Sanitation Authority) supply network does not fulfill the demand of a growing metropolitan city of Lahore. The drawdown of Lahore is absolutely reliant on Water and Sanitation Authority (WASA) water supply network that causes numerous problems due to inappropriate management of groundwater capital and increased urbanization. This research investigates groundwater qualities: Alkalinity, Arsenic, Calcium, chloride, Total Hardness, Magnesium, Nitrate, pH and Total Dissolved solids using geographic information system (GIS). Residents of high concentrated towns, like Samnabad Town, Allama Iqbal Town, Gulberg, Data Ganj Bakhsh Town, Ravi Town and Wahga town witness cut-down of water supply mainly due to over burden on tube wells. Chemical properties of drinking water show that most of the parameters were within the allowable limits of WHO whereas the pH, and arsenic values are higher than the average. Arsenic is a carcinogenic element which causes cancer and is higher in the drinking water. Finally, this study identifies highly contaminated groundwater zones and makes it convenient to find actual pollutants. Therefore, plans are needed to protect the aquifer.

关键词： Water Contamination Urbanization Geographic Information System (GIS) Chemical Properties Carcinogenic Elements WHO WebGIS RS WASA DNA pH TDS

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Prevalence of unsuspected thyroid nodules in adults on contrast enhanced 16-and 64-MDCT of the chest

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World Journal of Radiology 2012年第7期4卷 311-317页

作者： Sameer Ahmed Pamela T Johnson Karen M Horton atif Zaheer Saline Tsai Elliot K Fishman Russell H Morgan Department of Radiology and Radiological Science Johns Hopkins Hospital Baltimore MD 21212 United States

AIM: To determine the prevalence of unsuspected thyroid nodules on contrast enhanced 16and 64-modified discrete cosine transform (MDCT) of the chest, in a population of adult outpatients imaged for indications other than thyroid disease. METHODS: This retrospective study involved review of intravascular contrast-enhanced MDCT scans of the chest from 3077 consecutive adult outpatients, to identify unsuspected thyroid nodules. Exclusion criteria included history of thyroid cancer, known thyroid nodules or thyroid disease and risk factors for thyroid cancer, as evidenced by their medical records. One of 9 radiologists recorded number of nodules, location and bidirectional measurement of largest nodule, as well as amount of thyroid visualized on the chest computed tomography (CT). Presence of nodule was correlated with age, gender, race and percentage of thyroid imaged. RESULTS: A total of 2510 (2510/3077 or 81.6%) study subjects were included in the data analysis; among them,one or more nodules were identified in 629 subjects (629/2510 or 25.1%), with 242 (242/629 or 38.5%) having multiple nodules. Patients with nodule(s) were significantly older than those without (64 ± 13 years vs 58 ± 14 years, P < 0.0001), and female gender was associated with presence of nodule(s) (373/1222 or 30.5% vs 256/1288 or 19.9%, P < 0.0001). Women were also more likely having multiple nodules (167/373 or 44.8%) compared to men (75/256 or 29.3%, P < 0.0001). The majority of nodules (427/629 or 67.9%) were less than 1 cm. CONCLUSION: This retrospective review revealed a prevalence of 25.1% for unsuspected thyroid nodules on contrast-enhanced chest CT.

关键词： Thyroid nodule Thyroid cancer Multidetector cosine transform Incidental finding Chest computed tomography

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How does epidemiological and clinicopathological features affect survival after gastrectomy for gastric cancer patientssingle Egyptian center experience

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World Journal of Gastrointestinal Surgery 2016年第6期8卷 444-451页

作者： Ehab El Hanafy Ayman El Nakeeb Helmy Ezzat Emad Hamdy Ehab atif Tharwat Kandil Amgad Fouad Mohamed Abdel Wahab Ahmed Monier Gastroenterology Surgical Center Mansoura University

AIM:To investigate the clinicopathological features and the significance of different prognostic factors which predict surgical overall survival in patients with gastric ***:This retrospective study includes 80 patients diagnosed and treated at gastroenterology surgical center,Mansoura University,Egypt between February 2009 to February *** factors were assessed by cox proportional hazard ***:There were 57 male and 23 *** median age was 57 years(24-83).One,3 and 5 years survival rates were 71%,69% and 46% *** median survival was 69.96 *** the follow-up period,13 patients died(16%).Hospital morbidity was reported in 10 patients(12.5%).The median number of lymph nodes removed was 22(4-41).Lymph node(LN) involvement was found in 91% of *** R0 resection,depth of wall invasion,LN involvement and the number(> 15) of retrieved LN,LN ratio and tumor differentiation predict *** multivariable analysis,tumor differentiation,curability of resection and a number of resected LN superior to 15 were found to beindependent prognostic ***:Surgery remains the cornerstone of *** differentiation,curability of resection and a number of resected LN superior to 15 were found to be independent prognostic *** LN dissection does not increase the morbidity or mortality rate but markedly improves long term survival.

关键词： Cancer stomach Prognostic factors Lymph node metastasis Recurrence after gastrectomy Lymph node ratio

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自身免疫性胰腺炎在CT表现上的鉴别诊断

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肝胆外科杂志 2014年第6期22卷 463-463页

作者： atif Zaheer 刘振生赵红川

目的：本文通过研究自身免疫性胰腺炎（AIP）和胰腺癌（PA）的CT表现特点,为两者在CT上的鉴别诊断提供依据。方法：请3位放射科专家通过CT表现,对已经被确诊的32例AIP和32例PA进行影像学诊断,诊断结果分为AIP、PA和不确定。通过κ统计... 详细信息

目的：本文通过研究自身免疫性胰腺炎（AIP）和胰腺癌（PA）的CT表现特点,为两者在CT上的鉴别诊断提供依据。方法：请3位放射科专家通过CT表现,对已经被确诊的32例AIP和32例PA进行影像学诊断,诊断结果分为AIP、PA和不确定。通过κ统计分析对三位放射科专家诊断结果的一致性作出分析。结果：AIP诊断正确率为68%,PA诊断正确率为68％，放射科专家之间关于两者的诊断可达到中等程度的共识（K，0．58；P〈0．0001）。

关键词： CT 鉴别诊断影像学诊断统计分析胰管扩张弥漫性胆管壁刘振生胆总管

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射线通过抑制内膜低密度脂蛋白聚集影响早期动脉粥样硬化

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中华高血压杂志 2021年第5期29卷 480-480页

作者： Ikeda J Scipione CA Hyduk S Althagafi MG atif J Dick SA Rajora MA Jang E Emoto T MurakamiJ Ikeda N Ibrahim HM Polenz CK Gao X Tai K Jongstra-Bilen J Nakashima R Epelman S Robbins C Zheng G Lee WL MacParland SA Cybulsky MI 陈嘉睿(译) 练桂丽(审校) 不详

骨髓移植常用于研究造血细胞在动脉粥样硬化中的作用。在小鼠骨髓移植后,主动脉弓病变部位变小了。该研究旨在明确骨髓移植对早期动脉粥样硬化的抑制作用,并阐明其机制。方法和结论:对低密度脂蛋白胆固醇(low-density lipoprotein chole... 详细信息

骨髓移植常用于研究造血细胞在动脉粥样硬化中的作用。在小鼠骨髓移植后,主动脉弓病变部位变小了。该研究旨在明确骨髓移植对早期动脉粥样硬化的抑制作用,并阐明其机制。方法和结论:对低密度脂蛋白胆固醇(low-density lipoprotein cholesterol,LDL-C)受体基因敲除(Ldlr-/-)小鼠行全身γ射线照射,骨髓重建,并给予6周恢复期。研究升主动脉弓的动脉粥样硬化情况,并与未行骨髓移植的小鼠进行比较。在3、6、12周的高胆固醇膳食后,骨髓移植的小鼠病变部位中性脂类和髓细胞分布减少。骨髓移植后,病变的合并和高度被抑制,但横向增长受抑制较小。

关键词：早期动脉粥样硬化骨髓移植高胆固醇膳食低密度脂蛋白主动脉弓造血细胞髓细胞小鼠骨髓

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