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Colloidal and rheological characterization of SWCNT in biological media

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International Journal of Smart and Nano Materials 2019年第4期10卷 300-315页

作者： Arisbel Cerpa Isabel Lado Oriella Quiroga Rodrigo Moreno Rosario García Sebastián Cerdán Nehal I.Abu-lail Industrial and Aerospace Engineering Department European UniversityMadridSpain Synthesis and Colloidal Processing Group Institute of Ceramics and GlassICV-CSICMadridSpain Geology and Geochemical Department.Science Faculty Autonomous University of MadridMadridSpain Department of Endocrine and Nervous System Pathophysiology Institute of Biomedical Research“Alberto Sols”CSICMadridSpain Department of Biomedical Engineering University of Texas at San AntonioSan AntonioTXUSA

Wereport on the colloidal and rheological characterization of suspensions of commercial single-walled carbon nanotubes(SWCNT)and oxidized single walled carbon nanotubes(SWCNT-oxi24h),in water and fetal bovine serum(FBS).The effects of two surfactants,dodecyl-benzene sodium sulfonate(SBDS)and sodium dodecyl sulfate(SDS)at different concentrations(0.5-2.0%)on the zeta potential and the rheology of the suspensions is also *** suspensions were characterized by Transmission Electron Microscopy(TEM)and Atomic Force Microscopy(AFM).The colloidal stability was determined by measurements of zeta potential in the physiological pH range 6.0

关键词： SWCNT viscosity zeta potential surfactant molecular dynamics simulation

The Prevalence of Hyponatremia in Pulmonary Tuberculosis Patients, a Tertiary Care Hospital Experience from Pakistan

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Journal of Tuberculosis Research 2019年第4期7卷 259-266页

作者： Afshan Nisar Amanullah lail Darkhshan Nisar Syed Abdul Waheed Nausheen Saifullah Ghulamullah lail Department of Chest Medicine Jinnah Postgraduate Medical Centre Karachi Pakistan Department of Pediatrics Dow University Hospital Karachi Pakistan Department of Pharmacy (Pharmacology) Hamdard University Hospital Karachi Pakistan Department of Medicine and Allied Jinnah Medical and Dental College Karachi Pakistan

Introduction: Tuberculosis (TB) is one of the major public health problems in Pakistan. Our country ranks fifth in tuberculosis high-burden countries worldwide. Hyponatremia is considered as one of the most common and important electrolyte abnormality in Pulmonary TB (PTB) patients. This study will show the prevalence of hyponatremia in PTB in our population. Objective: To evaluate the prevalence of hyponatremia in pulmonary tuberculosis patients. Study Design: Cross-sectional, descriptive study at Jinnah postgraduate medical centre Karachi from August 2017 to August 2018. Material and Methods: In this cross-sectional study, all patients with TB admitted in chest ward were enrolled. Patients having tuberculous meningitis, syndrome of inappropriate Ant diuretic hormone (SIADH), Renal failure, pneumonia, Cirrhosis taking medicines (diuretics, ACEI, and ARBs) were excluded. A pre-designed questionnaire was used to assess hyponatremia and its potential causes other than TB. Chi-square or Fischer exact test was used to identify factors associated with hyponatremia. Results: Ninety-six patients with mean age were 40.14 ± 13.02 years (ranging 18 - 65 years). Predominantly, patients were females 50 (52.08%). Overall Serum Na, Mean ± SD was 130.53 ± 6.99 (Ranging 110 - 146). Sixty one patients (63.5%) were younger than 40 years. Forty patients (41.66%) were smokers: 16 (16.7%) had diabetes mellitus (DM), and 15 (15.6%) had hypertension. Sixty-nine (71.87%) patients had hyponatremia of which 45 (73.77%) were less than 40 years (p = 0.375). Diabetes mellitus, female gender, smoking, hypertension and duration of disease were not associated with increased risk of hyponatremia having P Values: p = 0.082, p = 0.39, p = 0.57, p = 0.20 and p = 0.45 respectively. Conclusion: Hyponatremia is associated with tuberculosis and is more common with diabetes, hypertension, smoking and young age.

关键词： Hyponatremia Tuberculosis Electrolyte Imbalance

Pleural Fluid Alkaline Phosphate Levels to Differentiate between Tuberculosis and Malignant Pleural Effusion a Tertiary Care Experience

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Journal of Tuberculosis Research 2023年第2期11卷 86-94页

作者： Syed Abdul Waheed Afshan Nisar Amanullah lail Ghulamullah lail Muhammad Imran Javid Ali Mahboob Ali Kamran Khan Nadeem Rizvi Department of Chest Jinnah Postgraduate Medical Hospital Karachi Pakistan Department of Pediatrics Dow International Medical College (DIMC) Karachi Pakistan Department of Medicine and Allied Jinnah Medical and Dental College Karachi Pakistan Department of Nursing KulsoomBai Social Security Hospital Karachi Pakistan School of Nursing Liaquatabad University of Karachi Karachi Pakistan

Introduction: Pleural effusion (PF) is a common clinical presentation in several diseases. Tuberculosis is one of the most frequent causes of exudative pleural effusions in immunocompetent patients. Tuberculosis is the leading cause of morbidity and mortality from an infectious disease in developing countries. Pakistan is ranked fifth in the world in terms of tuberculosis high-burden countries. Various pleural fluid parameters have been used to identify the cause of pleural effusion. It has been discovered that tuberculous pleural effusions had a greater alkaline phosphatase (ALP) concentration than transudative effusions. This study used pleural fluid alkaline phosphatase levels to distinguish between tuberculous pleural effusion and malignant pleural effusion because there is little information from tuberculosis-high burden nations like Pakistan. Study Design: A descriptive cross-sectional study conducted at the Jinnah Postgraduate Medical Center in Karachi between October 2016 and October 2017. Material and Methods: The study comprised all patients who were admitted to the department of chest medicine at Jinnah post graduate medical centre (JPMC) of either gender between the ages of 18 and 70 who had exudative lymphocytic pleural effusions lasting two weeks or more included in the study. Non probability consecutive sampling was used to collect data. Patients who have tonsillitis, pharyngitis, pneumonia, asthma, Chronic obstructive pulmonary disease (COPD), or a history of hemoptysis, Bleeding disorders like, platelet function disorder, thrombocytopenia, Liver cirrhosis and Pregnant women were excluded. Parents’ informed consent was obtained after being informed of the study’s protocol, hazards, and advantages. Each patient had their level of pleural fluid alkaline phosphate (PALP) assessed. In order to evaluate the patient’s pleural effusion, a pre-made questionnaire was used. All the collected data were entered into the SPSS 20. An independent sample t-test was

关键词： Pleural Fluid (PF) Alkaline Phosphatase (ALP) Tuberculosis Malignant

Humic and Oxalic Acid Stimulates Grain Yield and Induces Accumulation of Plastidial Carbohydrate Metabolism Enzymes in Wheat Grown under Sandy Soil Conditions

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Agricultural Sciences 2015年第1期6卷 175-185页

作者： Hattem M. El-Shabrawi Bakry Ahmed Bakry Mohamed A. Ahmed Mohamed Abou-El-lail Field Crops Research Department National Research Centre Cairo Egypt Plant Biotechnology Department National Research Centre Cairo Egypt Genetics Department Faculty of Agriculture and Natural Resources Aswan University Aswan Egypt

Humic and oxalic acids have the effects of promoting plant growth. We test whether they are able to positively impact wheat yield under newly reclaimed sandy soil, where water deficiency negatively influences yield. Foliar application of humic acid and oxalic acid on two wheat cultivars, Gemiza-9 and Sakha-93, leads to overall better performance of the plants and increases the yield significantly, irrespective of the cultivar genetic background. However, Gemiza-9 surpassed Sak- ha-93 in grain yield parameters. The highest values of grain and protein yields/ha were obtained in both cultivars, when the plants were sprayed with a combination of 17 mg/L humic acid and (300 mg/L) oxalic acid. Humic and oxalic acid showed accumulative yield-promoting effect. To understand the mechanism by which humic and oxalic acids promoted grain yield, we performed SDS-PAGE followed by MS-MS-LC analyses. We identified a unique humic acid-induced 52 KDa band in Gemiza-9. The band contained three major proteins, Ribulose bisphosphate carboxylase large chain, ADP-glucose synthase and NADP-dependent glyceraldehyde-3-phosphate dehydrogenase (GAPN). Thus humic acid increased the activity of plastid enzymes involved in photosynthesis, sucrose biosynthesis and starched accumulation to improve the overall performance of the plant.

关键词： Wheat Humic and Oxalic Acids Carbohydrate Metabolism Calvin Cycle SDS-PAGE Mass Spectrum Analysis

Using Atomic Force Microscopy to Measure Anti-Adhesion Effects on Uropathogenic Bacteria, Observed in Urine after Cranberry Juice Consumption

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Journal of Biomaterials and Nanobiotechnology 2012年第4期3卷 533-540页

作者： laila Abu-lail Yuanyuan Tao Paola A. Pinzón-Arango Amy Howell Terri A. Camesano Department of Chemical Engineering Worcester Polytechnic Institute Worcester UK School of Environmental and Biological Sciences Rutgers University Canada

A volunteer was given cranberry juice cocktail (CJC) or water to drink, and urine was collected at 2 and 8 hours after consumption, in order to quantitatively determine whether adhesion forces were changed for the volunteer after CJC consumption. Atomic force microscopy (AFM) was used to measure adhesion forces between bacteria and a silicon nitride tip. Forces between Escherichia coli or Staphylococcus aureus and the AFM tip were lower in the urine after the volunteer consumed CJC, compared to drinking water. A steric model was applied to the AFM data, in order to quantify how the urine changed the properties of the bacterial surfaces. There was a small decrease in the equilibrium length of surface molecules on the bacteria when in the post-CJC urine, compared to the post-water urine. However, these changes were not statistically significant. We hypothesize that post-CJC urine imparts subtle changes on the molecules of the bacterial surfaces, and that these changes lead to the reduction in adhesion with the AFM probe.

关键词： Vacciniumm macrocarpon Urinary Tract Infections E. coli S. aureus AFM

Enhanced Methane Sorption in Densified Forms of a Porous Polymer Network

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Materials Sciences and Applications 2014年第6期5卷 387-394页

作者： Austin C. Kizzie Anne Dailly Lamar Perry Marty A. lail Weigang Lu Thomas O. Nelson Mei Cai Hong-Cai Zhou Department of Chemistry Texas A&M University College Station USA General Motors Global Research and Development Warren USA RTI International Research Triangle Park USA

Multi-gram synthesis and densification is presented for a porous polymer network (PPN-4) examined as a possible vehicular methane storage material. Compaction at 17,000 psi doubled the bulk density of the material and unexpectedly increased microporosity within the material. As a result, the densified material exhibits higher excess gravimetric methane uptake and improved total volumetric methane uptake relative to the powder.

关键词： Adsorbents Polymers Methane Energy Transportation

Globalization of Higher Education Institutions in Malaysia: A Pilot Study

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Globalization of Higher Education Institutions in Malaysia: ...

多层螺旋CT、内镜及胃肠道造影对胃脂肪瘤诊断价值的比较

2011 International Conference on Social Science and Humanity（ICSSH 2011）

作者： Norasmah Othman M.Izham M.Hamzah Harinder Kaur T.Singh Jamalul lail Abdul Wahab Rahmah Ismail Faculty of Education Universiti Kebangsaan MalaysiaBangiMalaysia Faculty of Economy Universiti Kebangsaan MalaysiaBangiMalaysia

This paper discusses about the findings made from a pilot study on the globalization of Higher Education Institutions in *** purpose of this study is to identify the impact of globalization towards higher education institutions in these five elements: higher education demand,internationalization,lifelong learning,ICT Skills and Generic Skills.30 respondents,who are administrators from both public and private institutions of higher learning,were randomly selected to participate in the *** were self-developed based on literature *** were required to compare the importance of all the five elements before the year 1995 and after *** results obtained show that all the five elements have been indicated as more important after 1995 when compared to before 1995.1995 is chosen as the benchmark for globalization for Malaysia due to its participation as a member in the World Trade *** study with more respondents and document analysis has to be conducted to further prove the globalization of higher education institutions in the all five elements discussed by this study.

关键词： globalization higher education institutions demand internationalization lifelong learning ICT Skills Generic Skills

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解放军医学杂志 2017年第2期42卷 154-157页

作者：唐双玥黄燕张春来程诚旷连勤王毅第三军医大学大坪医院野战外科研究所放射科重庆400042 解放军273医院影像科新疆库尔勒841000

目的比较多层螺旋CT(MSCT)、胃肠道造影、常规胃镜和超声内镜在胃脂肪瘤初诊的检出率和定性诊断准确率的差异,探讨MSCT在胃脂肪瘤诊断中的价值。方法收集经病理证实的26例胃脂肪瘤患者作为研究对象,分析其临床、病理及影像学资料。26例... 详细信息

目的比较多层螺旋CT(MSCT)、胃肠道造影、常规胃镜和超声内镜在胃脂肪瘤初诊的检出率和定性诊断准确率的差异,探讨MSCT在胃脂肪瘤诊断中的价值。方法收集经病理证实的26例胃脂肪瘤患者作为研究对象,分析其临床、病理及影像学资料。26例患者中男6例,女20例,年龄41~82岁,平均61岁。26例患者均行常规胃镜、MSCT平扫及动态增强扫描检查,其中21例行超声内镜、12例行胃肠道造影检查。结果 MSCT、常规内镜初诊胃脂肪瘤的检出率分别为88.5%(23/26)和80.8%(21/26),均高于胃肠道造影的检出率(41.7%,5/12,P>0.05)。MSCT的定性诊断准确率为100%(23/23),高于超声内镜(71.4%,15/21)、胃肠道造影(0%,0/5)和常规胃镜(0%,0/21),且超声内镜定性诊断的准确率高于胃肠道造影和常规胃镜。26例脂肪瘤位于胃窦18例(69.2%,前壁10例,后壁6例,幽门管2例),胃体7例(26.9%),胃底1例(3.8%)。胃脂肪瘤MSCT表现均为边界清楚的类圆形或椭圆形结节影,呈均匀或混杂低密度,CT值在–50~–95Hu(平均–72.58Hu),增强扫描均无明显强化。肿瘤长径5.7~40.7mm(平均17.67mm),体积0.02~7.03cm3(平均1.89cm3)。结论 MSCT能对胃脂肪瘤做出准确的定位及定性诊断。

关键词：胃肿瘤脂肪瘤体层摄影术,螺旋计算机胃镜检查

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丹参品质评价研究进展

中国中药杂志 2018年第6期43卷 1077-1085页

作者：方文韬邓爱平任振丽南铁贵康利平郭兰萍黄璐琦詹志来中国中医科学院中药资源中心道地药材国家重点实验室培育基地北京100700 安徽中医药大学药学院安徽合肥230012 广东药科大学中药学院广东广州510006 山东丹红制药有限公司山东菏泽274000

丹参为常用大宗药材，临床应用广泛，具有抗血栓、抗菌、消炎、抗肿瘤、抗氧化、调节免疫等多种药理作用。丹参药的品质决定其疗效，当前随着丹参野生资源逐渐减少，市售丹参以栽培品为主，且栽培区域分布较广，其中山东、四川、安徽、... 详细信息

丹参为常用大宗药材，临床应用广泛，具有抗血栓、抗菌、消炎、抗肿瘤、抗氧化、调节免疫等多种药理作用。丹参药的品质决定其疗效，当前随着丹参野生资源逐渐减少，市售丹参以栽培品为主，且栽培区域分布较广，其中山东、四川、安徽、山西、河北、河南等省种植面积均较大。然而受种质、产地、栽培、采收、加工等过程中各相关因素的影响，各地丹参品质存：良莠不齐的现象。该文在系统分析丹参药材品质评价文献资料的基础上，对影响丹参品质的主要因素：种质、产地、栽培、散、加工、贮藏、商品规格等方面进行综述，为深入开展丹参品质相关研究提供思路。

关键词：丹参品质评价研究进展