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Article
Static Performance Characteristics Of Vortex Rate Sensor

Authors: Wisam Gasim Kadhum --- Ali Abdul AL-Muhsen
Journal: Journal of Engineering مجلة الهندسة ISSN: 17264073 25203339 Year: 2011 Volume: 17 Issue: 5 Pages: 1345-1353
Publisher: Baghdad University جامعة بغداد

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Abstract

The vortex rate sensor is a fluidic gyroscope with no moving parts and can be used in very difficult conditions like radiation, high temperature and noise with minimum cost of manufacturing and maintenance. A vortex rate sensor made of wood has been designed and manufactured to study theoretically and experimentally its static performance. A rig has been built to carry out the study, the test carried out with three different air flow rates (100, 150, and 200 l/min).The results show that the relation between the differential pressure taken from the sensor pickoff points and the angular velocity of the sensor was linear.The present work involved theoretical and experimental study of vortex rate sensor static characteristics. Vortex rate sensor has been designed and manufactured with dimensions:-Radius of vortex chamber =140 mm, Radius of sink tube rs =4.5 mm, the pickoff hole diameter = 2mm, Height of vortex chamber b =19 mm, Height of pickoff pipe h =25 mm.

متحسس معدل التدويم هو جايروسكوب مائعي بدون اجزاء متحركة ويمكن استخدامه بظروف صعبة جدا كالاشعاع ودرجات الحرارة العالية والضوضاء وبأقل كلفة تصنيع وصيانة. متحسس معدل التدويم مصنوع من ماده الخشب تم تصميمه وتصنيعه واستخدامه لوضع دراسة نظريه وعمليه للأداء الاستاتيكي للجهاز. كذلك تم بناء منظومة خاصة لإجراء الدراسة, في هذه الدراسة تم تسليط ثلاثة قيَم مختلفة لمعدل تدفق الهواء وهي (100,150 و 200 لتردقيقه) ووجد من خلال هذه الدراسة ان العلاقة ما بين فرق الضغط المأخوذ من الجهاز والسرعة الزاوية للجهاز هي علاقة خطيه.يتضمن هذا البحث دراسه نظريه وعمليه للخواص الاستاتيكيه للمتحسس . حيث تم تصميم وتصنيع المتحسس بالابعاد التاليه:نصف قطر حجرة الدوامه(R)=140 ملم , نصف قطر مجرى الخروج (rs)=4,5 ملم,قطر فتحه الpickoff=2ملم, ارتفاع حجرة الدوامه (b)=19ملم, ارتفاع انبوبh) ملمpickoff ) =25 ملم


Article
Static Performance Characteristics of Vortex Rate Sensor

Authors: Ali Abdul AL-Muhsen AL-Asady --- Wisam Gasim Kadhum
Journal: Journal of Engineering مجلة الهندسة ISSN: 17264073 25203339 Year: 2012 Volume: 18 Issue: 7 Pages: 829-836
Publisher: Baghdad University جامعة بغداد

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Abstract

The vortex rate sensor is a fluidic gyroscope with no moving parts and can be used in very difficult conditions like radiation, high temperature and noise with minimum cost of manufacturing and maintenance. A vortex rate sensor made of wood has been designed and manufactured to study theoretically and experimentally its static performance. A rig has been built to carry out the study, the test carried out with three different air flow rates (100, 150, and 200 l/min).The results show that the relation between the differential pressure taken from the sensor pickoff points and the angular velocity of the sensor was linear.The present work involved theoretical and experimental study of vortex rate sensor static characteristics. Vortex rate sensor has been designed and manufactured with dimensions:-Radius of vortex chamber =140 mm, Radius of sink tube rs =4.5 mm, the pickoff hole diameter = 2mm, Height of vortex chamber b =19 mm, Height of pickoff pipe h =25 mm.

متحسس معدل التدويم هو جايروسكوب مائعي بدون اجزاء متحركة ويمكن استخدامه بظروف صعبة جدا كالاشعاع ودرجات الحرارة العالية والضوضاء وبأقل كلفة تصنيع وصيانة. متحسس معدل التدويم مصنوع من ماده الخشب تم تصميمه وتصنيعه واستخدامه لوضع دراسة نظريه وعمليه للأداء الاستاتيكي للجهاز. كذلك تم بناء منظومة خاصة لإجراء الدراسة, في هذه الدراسة تم تسليط ثلاثة قيَم مختلفة لمعدل تدفق الهواء وهي (100,150 و 200 لتردقيقه) ووجد من خلال هذه الدراسة ان العلاقة ما بين فرق الضغط المأخوذ من الجهاز والسرعة الزاوية للجهاز هي علاقة خطيه.يتضمن هذا البحث دراسه نظريه وعمليه للخواص الاستاتيكيه للمتحسس . حيث تم تصميم وتصنيع المتحسس بالابعاد التاليه:نصف قطر حجرة الدوامه(R)=140 ملم , نصف قطر مجرى الخروج (rs)=4,5 ملم,قطر فتحه الpickoff=2ملم, ارتفاع حجرة الدوامه (b)=19ملم, ارتفاع انبوبh) pickoff ) =25 ملم.


Article
Evaluation of Directly Observed Treatment Short Course(DOTS) Program Implementation in Al-Anbar Governorate ,West of Iraq, for the Years 2008-2012
تقييم تطبيق البرنامج الوطني لعلاج مرض التدرن تحت النظر مباشرة في محافظة الانبار غرب العراق

Authors: Hameed Othman حميد عثمان --- Mahasin A Al-Taha محاسن احمد طه --- Hammodi F AL-jumaily حمودي الجميلي
Journal: IRAQI JOURNALOF COMMUNITY MEDICINE المجلة العراقية لطب المجتمع ISSN: 16845382 Year: 2017 Volume: 30 Issue: 2 Pages: 58-67
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Abstract:Background:- DOTS program has been adopted by WHO as hopeful strategy for treatment of TB since early nineties ,and it is widely accepted as an essential strategy for achieving (TB) control . Iraqi health authorities started DOTS program implementation since 2001 in Baghdad, Iraq. Objectives:- This study aimed to evaluate DOTS program implementation in Al-Anbar Governorate from 2008-2012 , and to assess the treatment outcomes of this program . Patients and Methods:- This Cross –Sectional Descriptive Study was conducted in consultation clinic in Ramadi city ,Al-Anbar Governorate for the period of October 1 ,2012 to March 31,2013 . Records of (1680) TB patients were studied retrospectively for the years 2008 to 2012 .Data regarding pulmonary cases for positive and negative smears ,extra-pulmonary and relapse cases ,treatment failure and chronic cases , in addition to Socio - demographic features were obtained .Statistical package for social sciences (SPSS)version 17 , and chi- square test were used ,while P values of less than 0.05 considered statistically significant . Results:- A total of 1680 TB patients records reviewed , (919) were males , and (761) were females . Male to female ratio was 1.2:1 .The total of new sputum smear positive( SS+) cases were 541(32.2%),sputum smear negative(SS- )were 413(24.5%) ,and extra pulmonary( EP) cases were 726(43.2%) .The Cure rate for TB patients for the period (2008- 2012) was 84.7% , 86.8%, 82.7% ,85.6% ,and 91.4% respectively . The treatment success rate of DOTS program for the period from 2008 to -2012 were 89% , 85.6% , 85.6% ,85.8% , 87.7% respectively .The higher death rate was at 2010 (4.5%) ,treatment failure rate was higher at 2012(2.6%) ,while defaulter rate was higher at 2009(10.5%),and transfer out rate was higher at 2010 (1.9%) .Conclusions:- DOTS program is still an important role in improving registration and curing TB cases ,and widely accepted for achieving TB control strategy in AL-Anbar Governorate .Although many results were close to WHO targets,the case detection rate was very low and faraway from its goals .

Keywords

DOTS --- TB --- Cure rate --- Defaulter rate --- Transfer out rate


Article
Outcomes of Intracytoplasmic Sperm Injection among Obstructive Azoospermia Patients in Kerbala, Iraq

Authors: Salim Abbas Anaas Al-Hasnawi --- Hameedah H. AbdulWahid --- Suhad Hadi Mohammed --- Mohanad Mohsin Ahmed
Journal: Karbala Journal of Medicine مجلة كربلاء الطبية ISSN: 19905483 Year: 2019 Volume: 12 Issue: 2 Pages: 2184-2189
Publisher: Kerbala University جامعة كربلاء

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Abstract

Background: Intracytoplasmic sperm injection (ICSI) is an assisted reproductive technology (ART) used to treat sperm-related infertility problems. There is heterogeneity in the success rates of ICSI among center, thus it would be useful to describe the data of different centers.Aim of the study: to evaluate the rate of ICSI success among Obstructive azoospermia treated in AL-Kafeel IVF center, Kerbala, Iraq, with some emphasis on female factors that may predict that ICSI outcome.Study design: A retrospective studyMaterials and Methods: Data of all couples who underwent ICSI with fresh sperm retrieval using testicular sperm aspiration (TESA) and reached the stage of embryo transfer during the period from 1st January 2015 to 1st January 2019 were included. Demographic data of couples and hormonal assays results were recorded. Data included such as number of oocytes collected, quality of oocytes, fertilization rate and clinical pregnancy rate. Clinical pregnancy was identified by measuring HCG hormone level in day 12-14 after embryo transfer.Results and Discussion: The total couple underwent ICSI was 42. The rate of fertilization was 69.55% whereas the clinical pregnancy rate was 33.3% which is similar to pregnancy rates in normospermic individuals. No effect of age of couples on the outcome of ICSI. TSH level in females was significantly higher in females with ICSI positive compared to females with failed ICSI (p=0.047) with average TSH concentration of 3.4 in ICSI successor and 2.038 in failed ICSI. Number of Grade 1 embryos was higher in ICSI successor than in ICSI failed couples. In addition, the levels of LH and AMH were shown to be increased I ICSI successors, however, this increase did not reach statistical significance. Conclusion: The rate of ICSI success in azospermic patients is similar to normospermic patients. TSH level in females could serve as a predictor for the outcome of ICSI.

Keywords

ICSI --- pregnancy rate --- Fertilization rate --- Oocytes --- IVF


Article
Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Compliance and Knowledge of Hypertensive Patients atients atients Attending ttending ttending Shorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk Governorate Shorsh Hospital in Kirkuk GovernorateShorsh Hospital in Kirkuk Governorate Shorsh

Authors: Layla Hassan Mohmed --- Haitham Issa Al – Banna
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2010 Volume: 9 Issue: 2 Pages: 145-150
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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ABSTRACT: BACKGROUND: Medical non-compliance has been identified as a major public health problem in the treatment of Hypertension. OBJECTIVE: To identify factors related to non-Compliance with the treatment of patients with Hypertension.PATIENTS AND METHODS: A total number of (400) hypertensive patient was enrolled to assess compliance rate at Shorsh General Hospital from July 21/2006 to July 21/2007, using a structured questionnaire. RESULT: The study revealed a low compliance rate among hypertensive patients, Males were less compliant (65.6%) than females (46%). Smokers (61.7%) more than non-smokers (50.6%),non-regular follow-up (76.7%) more than regular, primary and secondary education (68.5%) more than illiterate and high education, more than one medication (66.9%)than single medication. Poverty was the main cause of non-compliance (38.1) while absence of drugs and medical staff are the least to cause non-compliance (2.7%). CONCLUSION: Compliance rate in general is low in our study. Compliance rate is more in female, no family history, single drug medication, non-smokers, no other chronic diseases, more than 10 years of hypertension. Patient’s knowledge about their disease is insufficient because there are no health educational programs


Article
MAGNESIUM SULFATE, KETOROLAC, PROPOFOL, KETAMINE, AND XYLAZINE ANESTHETIC PROTOCOL IN RABBITS
استخدام المغنيسيوم سلفيت و الكيتورولاك والبروبوفول والكتامين والزيلازين كبرنامج تخدير في الأرانب

Author: Ahmed A. AL- Mramudhi haier A. Abid أحمد عبد الحسين المرمضي ثاير علوان عبد
Journal: Basrah Journal of Veterinary Research. مجلة البصرة للابحاث البيطرية ISSN: Print:18138497 E; 24108456 Year: 2014 Volume: 13 Issue: 1 Pages: 70-81
Publisher: Basrah University جامعة البصرة

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Abstract

The study aimed to evaluate the combination of Magnesium sulfate (Mg), ketorolac (Kr), Propofol (P), Ketamine (K), and Xylazine(X) anesthetic protocol in anesthesia and analgesia of rabbits. Twenty healthy male rabbits, weighing (1.300 0.200 kg) were used in the study. All rabbits were randomly assigned to four groups of five rabbits injected with the different protocols (G1(p10k50mg50 ), G2(p10k50kr10 ), G3(p10 k50 kr10mg50 ), and G4(p10 k50 kr10mg50x5)) of anesthesia intravenously in the marginal ear vein. The heart rate (HR), respiratory rate (RR), rectal temperature (RT) were taken before giving the drugs (Time 0 (control reading)), and then after 5,10,15,20,30,45,60,and 75 minutes of giving anesthesia. The induction time, duration of anesthesia, degree of analgesia, muscle relaxation and recovery time were recorded also. The anesthetic protocol in G3 (p10 k50 kr10mg50) is seen suitable for short operations (gives 24.2 minutes of surgical anesthesia), and the anesthetic protocol in G4 (p10 k50 kr10mg50x5) is seen suitable for long operations (gives 43.5 minutes of surgical anesthesia), and no signs of pain with the intravenously injection of propofol.

أجريت الدراسة لتقييم خلط المغنيسيوم سلفيت (M) و الكيتورولاك (Kr) و البروبوفول (P) والكتامين (K) والزيلازين (X) كبرنامج تخدير في الأرانب . استخدمت في هذه الدراسة (20) ذكر أرنب وزنها (1,300 ± 0,200 كغم ). قسمت الأرانب بشكل عشوائي إلى أربع مجاميع كل مجموعة خمسة أرانب وحقنت كل مجموعة بخلطة تخدير مختلفة وريديا في الوريد الاذني . المجموعة 1 (P10K50Mg50 ) , المجموعة 2 P10K50Kr10 ) ) , المجموعة 3P10 K50 Kr10Mg50) ) , والمجموعة 4 ( P10 K50 Kr10Mg50X5). تم قياس معدل ضربات القلب HRومعدل التنفس RR ودرجة حرارة المستقيم RT ودرجة التسكين ودرجة ارتخاء العضلات قبل إعطاء خليط العقار ( عند وقت الصفر, واعتبرت قراءة السيطرة لذلك الحيوان ) وبعد إعطائه في الفترات 5 , 10 , 15 , 20 , 30 , 45 , 60, 75 دقيقة ولكل حيوان , بالإضافة إلى تسجيل وقت أحداث التخدير وطول فترة التخدير والتخدير الجراحي ووقت الإفاقة بعد إعطاء العقارات . أظهرت النتائج أن برنامج التخدير في المجموعة الثالثة P10 K50 Kr10Mg50) ) كان مناسبا للعمليات الجراحية ذات المدة القصيرة (حيث أعطى تخدير جراحي لمدة 2 .24 دقيقة ) . أما برنامج التخدير في المجموعة الرابعة ( P10 K50 Kr10Mg50X5) ظهر انه مناسب للعمليات الجراحية ذات المدة الطويلة (حيث أعطى تخدير جراحي لمدة 43.5 دقيقة) , مع عدم وجود علامة للألم في منطقة الحقن الوريدي للبروبوفول .

Keywords

Ketamine --- Heart rate --- Rabbits


Article
Epidemiological Study of Sheep Thieleriasis in Thi-Qar Province

Author: Ashwaq J. Al-Miahy & Ban Abdul-Hussain Saleh
Journal: Journal of Education for Pure Science مجلة التربية للعلوم الصرفة ISSN: 20736592 Year: 2014 Volume: 4 Issue: 1 Pages: 316-320
Publisher: Thi-Qar University جامعة ذي قار

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Abstract

Ovine theileriosis is an important tick-borne disease of sheep in the world, caused by Theileria hirci (T. lestoquardi). The disease is economically important in small ruminants, particularly in sheep, causing clinical illness and mortalities in Middle East, west Asia, subcontinent, parts of Africa and Mediterranean Basin. The present study was carried out to determine the infection rate of theileriosis in sheep in East, west, north, south and center of The_Qar province by clinical signs and using microscopic examination of thin blood smears (ME).A total of 1400 sheep from 5 flocks (distributed in East, west, north, south and center of The_Qar province). Blood samples were collected from jugular veins of 580 infected sheep (diagnosed by clinical signs) ,blood samples collected in tubes containing EDTA. These samples were used for thin blood smears for ME (microscopical examination) by using Gemsa stain. Results showed the high infection rates were indicated in July, August and September (98 %, 45% and 55%) respectively, while the months March, April, May, and June were indicated lower percentage ( 10%, 27%, 25% and 30%) respectively, for this the total rate of infection by this parasite in sheep of Thi-Qar province in year 2012 was (41.42%) , this ratio is more than others in the last twenty years.

تعتبر الحمى الصفراء (الثايليريا) من الأمراض الخطيرة التي تصيب الأغنام و التي تنتشر مع انتشار القراد. تحدث نتيجة الإصابة بطفيلي الثايليريا, وهو من الأمراض التي تسبب خسارة اقتصادية في المجترات الصغيرة وخاصة في الأغنام, يحدث هذا المرض أعراض مرضية ونسبة هلاكات كبيرة في الشرق الأوسط , غرب آسيا ,ومناطق من أفريقيا والمناطق الساحلية من البحر المتوسط. لقد صممت هذه الدراسة الوبائية لتحديد نسبة الإصابة بمرض الحمى الصفراء في الأغنام في محافظة ذي قار في المناطق (شرق ,غرب, شمال, جنوب, ومركز المحافظة) للفترة ما بين شهر آذار وشهر أيلول لسنة 2012 , حددت الإصابة عن طريق أعراض المرض وللتأكيد بواسطة اخذ عينات دم من الوريد الوداجي للحيوانات التي ظهرت عليها تلك الأعراض وعمل مسحات دموية وفحصها تحت المجهر الضوئي. أجريت الدراسة على 1400 حيوان (موزعة شرق, غرب, شمال, جنوب ومركز المحافظة), و كانت الأعراض ظاهرة على 580 حيوان فقط , جمعت العينات بواسطة أنابيب حاوية على مضاد التخثر ثم اخذت منها مسحات دموية على شرائح زجاجية وصبغت بصبغة كمزا لتشخيص الطفيلي. أظهرت النتائج نسبة إصابة عالية في أشهر تموز, آب وأيلول (98%, 45%, و55%) على التوالي, بينما ظهرت نسبة إصابة اقل في الأشهر آذار, نيسان, أيار وحزيران (10%, 27%, 25%, 30%)على التوالي, وبذلك تكون نسبة إصابة الأغنام بهذا المرض في محافظة ذي قار لعام 2012 ( 41.42%) وهي أعلى نسبة إصابة بهذا المرض خلال العشرين سنة الماضية


Article
Effect of seeding quantity and chemical fertilizer on growth and grain yield of Oats (Avena sativa L.)
تأثير كميات البذار والتسميد الكيميائي في نمو وحاصل محصول الشوفانAvena sativa L.

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A field experiment conducted at farmer field, Basra-Qurna, during 2016-2017 growing season to study the effect of seed rates 80, 100, and 120 kg.h-1. Besides fertilizes application (120 kg N.h-1), nitrogen and phosphorus combination (120 kg N.h-1 + 30 kg P.h-1), NPK (120 kg N.h-1 + 30 kg P.h-1 + 40 kg K.h-1) and their combinations on growth and grain yield of oats. Results showed that 120 Kg.h-1sowing rate gave plant high and flag leaf area, Panicle number in the square meter, grain number in panicle, grain yield , as they were (118.45 cm, 238.67 Panicle.m-2, 71.88 grain.panicle-1, 5,67 Ton.h-1), respectively. NPK (120 kg N.h-1 + 30 kg P.h-1 + 40 kg K.h-1) treatment showed the highest, as compared to others in terms of plant height, area of flag leaf, panicle number in the square meter, grain number in panicle, 1000 grain weight, and grain yield. These values were (131.11 cm, 282.78 panicle.m-2, 84.33 grain.panicle-1, 28.96 g, 6.13 Ton.h-1) respectively. Combination 120 kg.h-1 and NPK (120 kg N.h-1 + 30 kg P.h-1 + 40 kg K.h-1) recorded the highest panicle number in square meter, grain number in panicle and grain yield, as they were 300.00 Panicle.m-2, 84.72 grain.panicle-1, and 6.13 ton.h-1, respectively.Al- Muthanna University All rights reserved

أجريت تجربة حقلية شمال مدينة البصرة - قضاء القرنة فِي حقول أحد المزارعين خلال الموسم الزراعي الشتوي 2016-2017، لدراسة تأثير كميات البذار والتَّسميد الكيميائي فِي نمو وحاصل حبوب الشوفان. نفذت التجربة باستخدام تصميم القطاعات العشوائية الكاملة (R.C.B.D) وبثلاث مكررات، تضمنت التجربة عاملين، الأول استخدام ثلاث كميات للبذار هي: 80 و 100 و 120 كغم هـ-1، ورمز لها (S1، S2، S3) على التتابع. وتضمن العامل الثاني استخدام معاملات سمادية هي: 1. 0: عدم إضافة سماد (معاملة المقارنة). ورمز لها بالرمز F0، 2. N: إضافة سماد النيتروجين لوحده وبكمية 120 كغم N هـ-1. ورمز لها بالرمز F1، 3. NP: إضافة النيتروجين بكمية 120 كغمN هـ-1 + 30 كغمP هـ-1. ورمز لها بالرمز F2، 4. NPK: إضافة النيتروجين بكمية 120 كغمN هـ-1+30 كغمP هـ-1+ 40 كغمK هـ-1. ورمز لها بالرمز F3. اظهرت النتائج تفوق المعاملة 120 كغم هـ-1 في تسجيل اعلى متوسطات أرتفاع النبات ومساحة ورقة العلم وعدد الداليات في المتر المربع وعدد الحبوب بالدالية وحاصل الحبوب والتي بلغت 118,45 سم، 238,67 دالية م-2، 71,88 حبة دالية-1 5,67 طن هـ-1 للصفات على التوالي. كما أظهرت النتائج أن للمعاملات السمادية المستخدمة بتوليفات تأثيراً معنوياً فِي زيادة جميع صفات النمو، إذ تفوقت المعاملة السمادية الرابعة F3 وأعطت أعلى المتوسطات مقارنةً بالمعاملات السمادية الأخرى فِي ارتفاع النبات ومساحة ورقة العلم وعدد الداليات بالمتر المربع وعدد الحبوب بالدالية ووزن الألف حبة وحاصل الحبوب بلغت (131,11 سم، 282,78 دالية -2، 84,33 حبة دالية-1، 28,96 غم، 6,13 طن هـ-1) على التتابع. وكان للتداخل بين عاملي التجربة تأثيراً معنوياً، إذ اعطت التوليفة 120 كغم هـ-1 و المعاملة السمادية الرابعة F3 أعلى المتوسطات لعدد الداليات بالمتر المربع وعدد الحبوب بالدالية وحاصل الحبوب والتي بلغت متوسطاتها 300,00 دالية م-2، 84,72 حبة دالية-1، 6,91 طن هـ-1 للصفات على التوالي.

Keywords

Oats --- Seeding rate --- NPK


Article
Assessment of heart rate variability in patients with chronic stable angina
تقييم تقلب معدل ضربات القلب في المرضى الذين يعانون من الذبحة الصدرية المستقرة المزمنة

Author: Mohammed Hassan Alwan
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2011 Volume: 15 Issue: 3 Pages: 1-5
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objectives: A prospective study performed in Ibn-Albitar hospital a tertiary center to assess the effect of ischemic heart disease on heart rate variability.Methods: Thirty nine consecutive patients all with history of chronic stable angina &with positive treadmill test underwent 24 hours holter test to assess heart rate variability. Compared it with 25 age & sex matched control volunteer group.Results: Thirty one (79.48%) male of patients group& 20 (80%) male of control group . heart rate variability expressed as (SDNN) standard deviation of normal to normal interval, (RMSSD) square root of the mean squared differences of successive normal to normal intervals& (pNN50) the proportion derived by dividing (NN50) the number of interval differences of successive normal to normal intervals greater than 50 milliseconds (ms.) by the total number of normal to normal intervals all were significantly lower in patients group.Conclusion: This study showed that heart rate variability significantly lower in patients with chronic stable angina.

Keywords

Heart rate --- Stable angina


Article
Stainless steel brackets failure rate after topical fluoride application in etching procedures

Author: Ali R AL-KHATIB
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2002 Volume: 2 Issue: 3 Pages: 399-405
Publisher: Mosul University جامعة الموصل

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Abstract

Enamel demineralization that occurs adjacent to directly bonded orthodontic attachments is of great concern to orthodontists. One of the suggested procedures to overcome this problem is to use topical fluoride treatment after acid etching. The purpose of this study was to evaluate the failure rate of stainless steel bracket with metal mash base after topical application of(1.1%) neutral sodium fluoride gel after(37%) phosphoric acid etching. Twenty patients with full maxillary and mandibular "0.018" standard edgewise fixed appliances were included. Maxillary right, mandibular left sides were received the topical sodium fluoride gel application after etching with(37%) H3PO4 for(30) seconds. The gel was applied for(4) minutes after etching, then rinse with air and water stream for(5) seconds; while in the contralateral sides the bonding was done conventionally. The bonding adhesive was the No-Mix chemical cure adhesive. The follow-up period was(12-15) months. The results showed that brackets failure rate in fluoridated group did not differ significantly from the non-fluoridated one. Hence the(1.1%) neutral sodium fluoride may have a clinical application in preventing demineralization that occurred around and under orthodontic brackets without any significant increase in failure rate of stainless steel brackets

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