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| 1 | Risk factors for colonoscopic perforation: A population-based study of 80118 cases显示文摘AIM: To assess the incidence and risk factors associated with colonic perforation due to colonoscopy. METHODS: This was a retrospective cross-sectional study. Patients were retrospectively eligible for inclusion if they were 18 years and older and had an inpatient or outpatient colonoscopy procedure code in any facility within the Geisinger Health System during the period from January 1, 2002 to August 25, 2010. Data are presented as median and inter-quartile range, for continuous variables, and as frequency and percentage for categorical variables. Baseline comparisons across those with and without a perforation were made using the two-sample t -test and Pearson's χ2 test, as appropriate.RESULTS: A total of 50 perforations were diagnosed out of 80118 colonoscopies, which corresponded to an incidence of 0.06% (95%CI: 0.05-0.08) or a rate of 6.2 per 10000 colonoscopies. All possible risk factors associated with colonic perforation with a P -value < 0.1 were checked for inclusion in a multivariable logbinomial regression model predicting 7-d colonic perforation. The final model resulted in the following risk factors which were significantly associated with risk of colonic perforation: age, gender, body mass index, albumin level, intensive care unit (ICU) patients, inpatient setting, and abdominal pain and Crohn's disease as indications for colonoscopy. CONCLUSION: The cumulative 7 d incidence of colonic perforation in this cohort was 0.06%. Advanced age and female gender were significantly more likely to have perforation. Increasing albumin and BMI resulted in decreased risk of colonic perforation. Having a colonoscopy indication of abdominal pain or Crohn's disease resulted in a higher risk of colonic perforation. Colonoscopies performed in inpatients and particularly the ICU setting had substantially greater odds of perforation. Biopsy and polypectomy did not increase the risk of perforation and only three perforations occurred with screening colonoscopy. | Uzair Hamdani Raza Naeem Fyeza Haider Pardeep Bansal Michael Komar David L Diehl H Lester Kirchner | 2013 | World Journal of Gastroenterology2013，19，23： | 9 |
| 2 | Force and Flow Structure of an Airfoil Performing Some Unsteady Motions at Small Reynolds Number显示文摘 | Sun Mao Hossein Hamdani (Institute of Fluid Mechanics,Beijing University of Aeronautics & Astronautics) | 2000 | 空气动力学学报2000，18，z1： | 9 |
| 3 | RADIATION GRAFTED POLY(VINYLIDENE FLUORIDE)-GRAFT-POLYSTYRENE SULFONIC ACID MEMBRANES FOR FUEL CELLS:STRUCTURE-PROPERTY RELATIONSHIPS显示文摘结构性质关系为(vinylidene 氟化物) poly,酸性硫酸基的酸(PVDF-g-PSSA ) 燃料房间膜由包含钠苯乙烯 sulfonate (SSS ) 的导致放射的 grafting 到电子横梁(EB ) 上 poly 照耀的一个单个步方法(vinylidene 氟化物)(PVDF ) 准备了的 -graft-polystyrene 拍摄被建立。象离子交换能力,水胀大和质子电导率那样的膜的物理化学的性质与 grafting 的学位被相关(G, %) 并且在准备过程期间发生在膜矩阵的结构的变化。在 crystallinity 和膜的热稳定性的变化被微分扫描热量测定(DSC ) 和 thermogravimetric 分析(TGA ) 分别地学习。膜被发现经历实质的结构的变化处于良好的竟技状态离子的地点,增加, hydrophilicity 改进, hydrophobicity 减小和 crystallinity 在 G (%) 和准备方法与变化减少。获得的膜的结构、热的性质也与他们一个常规二拍子的圆舞方法准备的对应物相比即放射导致了苯乙烯的 grafting 到照耀的 PVDF 电影由 sulfonation 跟随了的 EB 上。一个单个步的方法获得的 PVDF-g-PSSA 膜被发现与常规二拍子的圆舞方法获得的那些相比有优异性质。关键词 PVDF 电影 - 钠苯乙烯 sulfonate - 导致放射的 grafting - | Mohamed Nasef Hamdani Saidi Khairulzaman Mohd Dahlan | 2010 | Chinese Journal of Polymer Science2010，28，5： | 3 |
| 4 | Effect of reaction conditions on electron induced graft copolymerization of styrene onto poly ( ethylene-co-tetrafluoroethylene ) films: kinetics study 显示文摘 | Rosiah R Mohamed M N Hamdani S | 2007 | Chemical Engineering Journal2007，132，13： | 1 |
| 5 | The functional organization of the fish olfactory syste显示文摘 | Hamdani el H DOving K B | 2007 | Prog Neurobiol2007，82，2： | 1 |
| 6 | Treatment of heart failure with normal ejection frac- tion显示文摘 | Hamdani N Paulus WJ | 2011 | Curt Treat Options Cardiovasc Med2011，13，1： | 1 |
| 7 | Growth and yield of Solanum tuberosum at medium plain with application of paclobutrazol and paranet shade显示文摘 | MARIANA M HAMDANI J S | 2016 | Agile Agric Sci Procedia2016，9，： | 1 |
| 8 | Sildenafil and B-Type Natriuretic Peptide Acutely Phosphorylate Titin and Improve Diastolic Distensibility In Vivo显示文摘 | Kalkidan Bishu Nazha Hamdani Selma F. Mohammed Martina Kruger Tomohito Ohtani Ozgur Ogut Frank V. Brozovich John C. Burnett Wolfgang A. Linke Margaret M. Redfield | 2011 | Circulation2011，，25： | 1 |
| 9 | Diastolic stiffness of the failing diabetic heart importance of fibrosis, advanced glycation end products, and myocyte resting tension 显示文摘 | Heerebeek LV Hamdani N Handoko L | 2008 | Circulation2008，117，1： | 1 |
| 10 | Films minces de Co3O4 et NiCo2O4 obtenus par nébulisation réactive (spray) pour l’électrocatalyse. II. Etude par voltampérométrie cyclique显示文摘 | M. Hamdani J. F. Koenig P. Chartier | 1988 | Journal of Applied Electrochemistry1988，，4： | 1 |
| 11 | Deposition of fine particles on building internal surfaces显示文摘 | EL HAMDANI S LIMAM K ABADIE M O | 2008 | Atmospheric Environment2008，42，39： | 1 |
| 12 | Optical Properties of GaN Grown on ZnO by Molecular Beam Epitaxy显示文摘 | Hamdani F Botchkarev A Kim W | 1997 | Appl Phys Lett1997，70，： | 1 |
| 13 | Co3 04 and Co-based spinel oxides bifunctional oxygen electrodes 显示文摘 | HAMDANI M SINGH R N CHARTIER P | 2010 | Int J Elec- trochem Sci2010，5，4： | 1 |
| 14 | Low myocardial protein kinase G activity in heart failure with preserved ejection fraction 显示文摘 | van Heerebeek L Hamdani N Falcao-Pires I | 2012 | Circulation2012，126，7： | 1 |
| 15 | Alteration of the beta-adrenergic signalingpathway in human heart failure显示文摘 | Hamdani N Linke WA | 2012 | Curr Pharm Biotechnol2012，20，： | 1 |
| 16 | Flame retardancy of silicone-based materials显示文摘 | Hamdani S Longuet C Perrin 9 | 2009 | Polymer Degradation and Stability2009，94，4： | 1 |
| 17 | Diastolic stiffness of the failing diabetic heart显示文摘 | Heerebeek LV Hamdani N Handoko L | 2008 | Circulation2008，117，1： | 1 |
| 18 | In vitro and in vivo evaluation of floating riboflavin pellets developed using the melt pelletization process显示文摘 | Hamdani J Goole J Moesa J | 2006 | Int J Pharm2006，323，12： | 1 |
| 19 | Diastolic stiffness of the failing diabetic heart: Importance of fibrosis, advanced glycation end products, and myocyte resting tension显示文摘 | van HEEREBEEK L HAMDANI N HANDOKO ML et 02 | 2008 | Circulation2008，117，1： | 1 |
| 20 | Visualisation of air–water bubbly column flow using array Ultrasonic Velocity Profiler显示文摘In the present work, an experimental study of bubbly two-phase flow in a rectangular bubble column was performed using two ultrasonic array sensors, which can measure the instantaneous velocity of gas bubbles on multiple measurement lines. After the sound pressure distribution of sensors had been evaluated with a needle hydrophone technique, the array sensors were applied to two-phase bubble column. To assess the accuracy of the measurement system with array sensors for one and two-dimensional velocity, a simultaneous measurement was performed with an optical measurement technique called particle image velocimetry(PIV). Experimental results showed that accuracy of the measurement system with array sensors is under 10% for one-dimensional velocity profile measurement compared with PIV technique. The accuracy of the system was estimated to be under 20% along the mean flow direction in the case of two-dimensional vector mapping. | Munkhbat Batsaikhan Ari Hamdani Hiroshige Kikura | 2017 | Theoretical & Applied Mechanics Letters2017，7，6： | 1 |
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