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Article
Modalities of Management of Radial Nerve Injury presented with Fracture in different Sites of Humerus

Author: Hamza N. Aboud
Journal: Mustansiriya Medical Journal مجلة المستنصرية الطبية ISSN: 20701128 22274081 Year: 2010 Volume: 9 Issue: 1 Pages: 63-66
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background This topic has been the subject of interest for many authors for many years, because still there is a recurrent theme …should the nerve be explored routinely along with internal fixation of fracture or should exploration be limited to those cases in which spontaneous recovery has not occurred within expected time ? or when justify? Objectives This study is designed is to shed a light on the dilemma of management radial nerve injury, in surgically treated patients versus conservatively treated others. Methods A series of 25 patients presented with any degree of radial nerve palsy complicating140 case of closed fracture shaft humerus , were treated by surgical & conservative method , according to certain indicators and evaluated during three years period, in two teaching hospital in Baghdad, from 2006 to 2008. Most of patients were males 19 case & the remaining patients were females 6 cases ,their age ranging from 3 days old baby to 45 years old & the mean age was 25 years .Ten (10) patients treated conservatively , Fifteen (15 ) patient treated surgically by either early exploration ( too early & late early ) or delayed exploration. Results The radial nerve was explore in seventeen patients from total number of study 25 patients. Eight treated by early exploration .. ( five by too early exp. within few days & three by late early exp. within next two weeks).Nine patients treated by delayed exploration after ( 3.5~ 4 ) months post traumatic period .In the last eight patients , the radial nerve was not explored & treated conservatively? The overall useful recovery rate from applying our policy was (84 % ). Conclusion Treatment of radial nerve palsy complicated closed fracture shaft humerus should be programmed well, depending on many factors , such as severity & onset of nerve lesion and type & site of associated fractures.

Keywords

Radial --- Nerve --- Fracture --- Management.


Article
Calculating the density of electronic charge for hydrogen atom and ions like atom
حساب كثافة الاحتمالية القطرية والدالة القطرية لذرة الهيدروجين والايونات المشابهة لذرة الهيدروجين

Authors: Nessrin K. Abd- AL Ameer نسرين خليل عبد الامير --- Khalil A. Al-Bayati خليل هادي البياتي --- Ban H. Adel بان حسن عادل
Journal: Baghdad Science Journal مجلة بغداد للعلوم ISSN: 20788665 24117986 Year: 2011 Volume: 8 Issue: 2عدد خاص بمؤتمر الفيزياء Pages: 519-526
Publisher: Baghdad University جامعة بغداد

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Abstract

The radial wave function R(r) and the radial distribution function P(r) as a function of (r), for the Hydrogen atom was calculated for several atomic state (1s,2s,2p,3s,3p,3d) The results were compared with Hydrogen like atom(He+,Li+2,Be+3).

تم حساب الدالة القطرية R(r) ودالة التوزيع القطرية P(r) كدالة للمسافة r لمدارات ذرية لذرة الهيدروجين و قورنت النتائج مع الايونات المشابهة لذرة الهيدروجين (He+,Li+2,Be+3 ).


Article
Outcome of Transcapitellar K-wire Fixation for Radial Neck Fractures

Author: Ali A. Ali
Journal: Mustansiriya Medical Journal مجلة المستنصرية الطبية ISSN: 20701128 22274081 Year: 2014 Volume: 13 Issue: 1 Pages: 26-32
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background: Fractures of the radial neck are mainly seen in children and require meticulous management to avoid elbow disabilities. Age, grade of the fracture and association with other elbow injuries affect the surgical approach to be used for treatment. Aim: This study was performed to detect the outcome of using transcapitellar K-wire fixation for treatment of radial neck fractures. Patients & Methods: Twelve patients with displaced (Broberg-Morrey II, III & IV) radial neck fractures were included. Eight patients (Group A) were children below skeletal maturity (10-18 years) and four patients were over 18 years of age (Group B) who achieved full skeletal maturity. Kaplan’s approach for open reduction and internal fixation using K-wires was used, and the patients were followed up for 6 months. Each patient was assessed for outcome according to predefined criteria ranging from excellent to good, fair and poor. Results: In group A, two patients had excellent outcome, one patient had fair outcome and the rest had good outcome. In group B, two patients had good outcome while the other two had fair outcome; however, none of the patients had poor outcome. Valgus deformity of >10oand elbow stiffness of >20o developed in three patients, with stiffness mainly affecting supination & extension. Of the patients with fair outcome, one developed implant failure due to poor compliance, while another patient developed neuropraxia of the posterior interosseous nerve that resolved spontaneously. Conclusion: Several surgical methods have been proposed for treatment of radial neck fractures with variable results and outcomes. While open reduction and K-wire fixation may not be the first line of these methods, it remains a safe method and provides advantages like short operative time, no exposure to image intensifier, less blood loss and less risk of neurovascular injury. However, for optimal results with minimal complications, the procedure requires early intervention, good patient compliance and prolonged follow-up.


Article
An Improved Method for the Determination of Airplane Radial Velocity Using Doppler Shift
طريقة مطورة لتحديد السرعة النصف قطرية للطائرة بأستخدام أزاحة دوبلر

Authors: Jazeel H.Azeez جزيل حسين عزيز --- Loay E.George لؤي أدوار جورج --- Laith A.Al-Ani ليث عبد العزيز العاني
Journal: Iraqi Journal of Physics المجلة العراقية للفيزياء ISSN: 20704003 Year: 2010 Volume: 8 Issue: 13 Pages: 89-96
Publisher: Baghdad University جامعة بغداد

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Abstract

In this research velocity of moving airplane from its recorded digital sound is introduced. The data of sound file is sliced into several frames using overlapping partitions. Then the array of each frame is transformed from time domain to frequency domain using Fourier Transform (FT). To determine the characteristic frequency of the sound, a moving window mechanics is used, the size of that window is made linearly proportional with the value of the tracked frequency. This proportionality is due to the existing linear relationship between the frequency and its Doppler shift. An algorithm was introduced to select the characteristic frequencies, this algorithm allocates the frequencies which satisfy the Doppler relation, beside that the tracked frequencies was chosen to be the most occurred frequencies in the power spectrum. Several sizes of the overlap windows have been tested to study the effect of window size on the accuracy of the determined radial velocity of the moving airplane. The obtained results have been compared with the corresponding results of non overlapped window. The accuracy of the results was assessed using two criteria, the first is the closeness of the curves of the determined radial velocities versus time for the case of overlapped and non-overlapped window; the closer curves indicate better results. The second used criteria is the Root Mean Square Error (RMSE), it is used to determine the degree a method for determining the radial of linearity of the relationship between Doppler shift and characteristic frequencies, the least values of (RMSE) signify better results are obtained.

في هذا البحث تم أستخدام طريقة لأيجاد السرعة النصف قطرية لطائرة متحركة من تسجيلها الصوتي الرقمي. المعلومات للفايل الصوتي تم تقطيعها الى مقاطع متعددة باستخدام التقطيع المتشابك، ثم المصفوفة لكل مقطع تم تحويلها من الجال الزمني الى المجال الترددي باستخدام تحويل فورير. لأيجاد التردد المميز للصوت تم أستخدام ميكانيكية النافذة المتحركة، حيث جعل حجم النافذة يتناسب طرديا مع قيمة التردد الذي يتم ملاحقته. ذلك التناسب يعود الى العلاقة الخطية بين التردد وازاحة دوبلر له. تم أستخدام خوارزمية لأنتقاء الترددات المميزة، هذةالخوارزمية تحدد الترددات التي تحقق اضافة لذلك الترددات الملاحقة تم أختيارها علىاساس أنها الترددات الأكثر حصولا في طيف القدرة. عدة قيم للنوافذ المتشابكة تم أختبارها لدراسة تأثير حجم النافذة على دقة ايجاد السرعة النصف قطرية للطائرةالمتحركة. تم مقارنة النتائج المستحصلة مع نتائج النافذة غير المتشابكة. قيمت دقة النتائج على أساس عاملين، ألأول تقارب المنحنيات للسرع النصف قطرية كدالة للزمن في حالة النوافذ المتشابكة وغيرالمتشابكة؛ المنحنيات المتقارية أفضل. العامل الثاني هو جذر معدل مربع الخطأ؛ حيث أستخدم لأيجاد درجة الخطية بين العلاقة بين أزاحة دوبلر والترددات المميزة، كلما كانت قيم جذر معدل مربع الخطأ أقل دلت على أن النتائج أفضل.


Article
Open Reduction and Internal Fixation Compared to Closed Reduction and External Fixation in Distal Radial Fractures Arandomized Study of 40 Patients

Authors: Diaa Gafar Sadik ضياء جعفر سادق --- Zaid Abdali زيد عبد علي
Journal: Karbala Journal of Medicine مجلة كربلاء الطبية ISSN: 19905483 Year: 2014 Volume: 7 Issue: 1 Pages: 1842-1849
Publisher: Kerbala University جامعة كربلاء

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Abstract

Objective: to investigate if open reduction and internal fixation would produce better outcome than external fixation of distal radial fractures.Patients and Methods: 40 patients with unstable or comminuted distal radial fracture where divided randomly into two groups using 2 methods of treatment, in group one closed reduction &bridging external fixation was used ,in group tow open reduction &internal fixation was used. The primary outcome parameter was grip strength, but the patients were followed for 1 year with objective clinical assessment, subjective outcome and radiographic examination.Results & Discussion: At one year postoperatively , grip strength was 89%(standard deviation 15) of the injured side in the internal fixation group and 75%(15) in the external fixation group. Pronation /supnation was 150 (15)in the internal fixation group &136 in(20) in the external fixation group at 1year.4 patients in the external fixation group where reoperated due to malunion as compared to 2 in internal fixation group.6 others are classified as radiographic malunion, 5 in the external fixation ,1 in the internal fixation group.Conclusion: internal fixation gave better grip strength &and better range of motion at one year, and less malunion than external fixation. No difference could be found regarding subjective outcome.


Article
EFFECT THE RADIAL STRAIN ON THE PERFORMANCE EVALUATION OF AN ELECTRO OPTIC MODULATOR
تاثير الاجهاد القطري على تقيم اداء المضمن الاليكترو بصري

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Abstract

This research presents a mathematical model that established for evaluating the effect of the radial strain on the performance of an electrooptic modulator using MATLAB simulations. It can be used the variable values for the forces applied with in specific area for the crystal's arm for an electro optic modulator and this is under the condition to the value of visibility factor can be improved and using this technique it will evaluate the effect of radial strain. So, this model leads to enhancement the performance an electro optic modulator using MATLAB simulations. Finally, visibility factor of an electro optic modulator versus radial strain can be evaluated for different values of force and which considers important factor on the performance of an electro optic modulator for the modern communication system.

هذا البحث يقدم موديل رياضي أنشأ لتقييم تأثير الإجهاد القطري على أداء المضمن الألكترو البصري باستعمال برنامج المحاكاة ماتلاب . و باستعمال قيم مختلفة للقوى مسلطة ضمن مساحة معينة للذراع البلوري للمضمن الألكترو البصري وهذا يمكن ان يحسن قيم معامل مدى الرؤية وباستعمال هذه التقنيه سيتم تقييم تأثير الإجهاد القطري.لذلك هذا الموديل يؤدي الى تحسين كفاءة المضمن الألكترو البصري باستعمال محاكات ماتلاب. وأخيرا باستعمال محاكاة ماتلاب نستطيع أن نبين بعلاقة توضح تأثير الإجهاد القطري لقيم مختلفة للقوى على كفاءة معامل مدى الرؤية للمضمن الألكترو البصري التي تعتبر عامل مهم في أداء المضمن الألكترو البصري في نضم الاتصالات الحديثة.


Article
Initial experience in trans-radial percuteneous coronary intervention

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Abstract

Background: Transradial compared to classic transfemoral coronary intervention has been shown to have similar efficacy rates, while being more cost-effective and most importantly safer due to fewer access site complications. Furthermore, patient comfort is increased and outpatient treatment may be feasible..Objectives: To start trans-radial intervention program and the initial learning curve for fellows and the catheterization –laboratory nursing staff. To test how could it be applicable and comfortable for our patientsMethods: This prospective study was performed in Ibn-Albitar hospital for cardiac surgery over a period of 6 months from the 1st of August 2012 till the 1st of February 2013. Every patient referred for percutenuos coronary intervention whether on scheduled or on an emergency basis was considered initially for trans-radial approach for intervention unless they are excluded. Allen test was required ensuring adequate ullnar collateral supply. Sledinger technique was used for radial artery puncture and a special radial sheath was introduced. Intervention was performed through the same catheter and equipments that are used for femoral approach.. medication given according to center protocol, the relevant data collected and patients immediately ambulated unless they receive sedation.Results: A total of 126 patients were referred for intervention during the study period, 20 cases were excluded for various reasons , 6caese were crossed over to femoral approach and the other 100 cases the procedure completed transradially. The mean age of the patients was 57 ± 8 years. Of these 72% were males ,with different risk factors . Most cases presented with chronic stable angiana (87%). Access site was right radial artery in 87% of patients while left radial approach used in 13% of patients. In 72% of cases single guiding catheter was used, in 21% of cases 2 guiding catheter were used and more than 2 types of guiding catheter were used in 7% of cases. In most session of intervention single artery was treated (78%) , 2 vessel intervention in 21%, 3 vessel in one case..Lesions treated were different types 26%,36%,38% A,B and C respectively. The success in obtaining radial access was 97.7% ,while angiographic procedural success rate was 96%. Mean total procedure time was ( 43+/-23min ), mean fluoroscopy time (13+/-8 min )and the average amount of contrast used was (178+/-80ml). with no major complication apart from 3% small heamatom and 6% radial loss. Around 80% of patients preferred TRI approach.Conclusion: Radial artery approach for percutenuos coronary interventions has high procedural success rate and associated with low risk of access site complications and no significant increase of procedural and fluoroscopy time. It is comfortable approach for most patients especially female and obese. Early ambulation with no risk of bleeding and reduction of the duration of hospital stay are in favor of TRI approach.


Article
A Radial Basis Neural Network Controller to Solve Congestion in Wireless Sensor Networks

Author: Maab Alaa Hussain
Journal: Iraqi Journal for Computers and Informatics ijci المجلة العراقية للحاسبات والمعلوماتية ISSN: 2313190X 25204912 Year: 2018 Volume: 44 Issue: 1 Pages: 53-62
Publisher: University Of Informatics Technology And Communications جامعة تكنولوجيا المعلومات و الاتصالات

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Abstract

In multihop networks, such as the Internet and the Mobile Ad-hoc Networks, routing is one of the most important issues that has an important effect on the network’s performance. This work explores the possibility of using the shortest path routing in wireless sensor network . An ideal routing algorithm should combat to find an perfect path for data that transmitted within an exact time. First an overview of shortest path algorithm is given. Then a congestion estimation algorithm based on multilayer perceptron neural networks (MLP-NNs) with sigmoid activation function, (Radial Basis Neural Network Congestion Controller (RBNNCC) )as a controller at the memory space of the base station node. The trained network model was used to estimate traffic congestion along the selected route. A comparison study between the network with and without controller in terms of: traffic received to the base station, execution time, data lost, and memory utilization . The result clearly shows the effectiveness of Radial Basis Neural Network Congestion Controller (RBNNCC) in traffic congestion prediction and control.


Article
NUMERICAL SOLUTION FOR ADVECTION-DIFFUSION EQUATION USING COLLOCATION BASED NEW RADIAL BASIS FUNCTION
الحل العددي لمعادلة الطاقة باستخدام دالة الأساس الشعاعي المركب

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Abstract

In the present paper, a composite radial basis function was developed by a combination between thin plate and logarithmic radial basis functions. This radial basis function was developed to overcome the singularity appeared when the source and field points coincide. In based new radial function, the thin plate function was used when evaluating diagonal elements of the matrix coefficients and the logarithmic function was used for evaluating the other elements. The advantage of using this new radial basis function represented by overcoming singularity from the diagonal elements when thin plate radialbasis function is used. The new function is a combination of both multiquadric and thin plate radial basis functions. One- and two-dimensional test examples were solved and the present results were compared with the analytical results and gave a good agreement in different applicant in applied mechanics and neural network .

في هذا البحث تم تطوير دالة الاساس الشعاعي المركب بواسطة الربط بين صفيحة رقيقة ودوال الاساس اللوغاريتمي الشعاعي وهذه الدالة طورت لغرض التخلص من التفرد لنقاط محددة تظهر عند اتحاد المصدر والمجال . و على اساس الدالة الشعاعية الجديدة فقد استخدمت دالة الصفيحة الرقيقة لتقييم العناصر القطرية ضمن معاملات المصفوفة , بينما استخدمت الدالة اللوغاريتمية لتقييم العناصر الاخرى .ان الدالة الجديدة هي اتحاد لكل من التقسيمات المتعددة والدالة الاساسية الشعاعية للصفيحة الرقيقة , وان النتائج التي ظهرت من حلول امثلة احادية وثنائية الابعاد تم مقارنتها مع النتائج العددية واعطت مطابقة جيدة لمختلف التطبيقات لكل من كل التطبيقات الميكانيكية والشبكات العصبية


Article
Identification and Purification of Cholera Like Toxin from Environmental Isolate of Vibrio cholerae
تشخيص وتنقية ذيفان شبيه بذيفان الكوليرا من عزلة بيئية لبكترياVibrio cholerae

Authors: Amina N. Al- Thwani امنة نعمة الثويني --- Khlood A. Al-Khafaji خلود عبد الإله الخفاجي
Journal: Baghdad Science Journal مجلة بغداد للعلوم ISSN: 20788665 24117986 Year: 2010 Volume: 7 Issue: عدد خاص بمؤتمر العلمي النسوي 1 Pages: 415-423
Publisher: Baghdad University جامعة بغداد

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Abstract

The presence and prevalence of V. cholerae were investigated in forty five water samples collected from different locations of Tiger River/ Baghdad city. Twenty one isolates were isolated by adopting a simple isolation techniques. The final identification revealed that only three isolates were confirmed as V. cholerae. They were named 1J, 1R and Dial 131 which are all serogrouped as non-O1. Toxin Coregulated Pili (TCP) and heat labile enterotoxin (LT) were determined in only the environmental isolate 1J while non of the isolates produced heat stabile toxin (ST).The purification scheme was improved, few steps were adopted to include back extraction of ammonium sulfate, saturation between 80-20%, desalting through Sephadex G25, and gel filtration using Sephadex G100 which highly increase the specific activity.

تم التحري عن وجود V.cholerae في خمس واربعين نموذج ماء لمختلف مناطق نهر دجله/بغداد وامكن عزل احدى وعشرين عزله باستخدام تقنية بسيطة للعزل واوضح التشخيص النهائي ان ثلاث عزلات فقط تعود للنوع V. cholerae النوع المصلي non-O1 وسميت 1J,1RDial 131 .اظهر التحري عن عوامل الضراوة انتاج ذيفان عامل الالتصاق و الذيفان الحساس للحرارة من العزلة البيئية1J بينما لوحظ عدم انتاج الذيفان المقاوم للحرارة من قبل العزلات الثلاث.طورت عملية التنقية ليشمل المخطط خطوات قليلة فيها الاستخلاص المعاكس بملح كبريتات الامونيوم بتراكيز80-20 % وعملية ازالة الاملاح من خلال استخدام Sephadex G25 والغربلة بالهلام باستعمال هلام Sephadex G100 وقد ازدادت الفعالية النوعية لاخر خطوة بصورة كبيرة.

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