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Article
An Investigation about The Deuterium-Deuterium Nuclear Fusion differential cross section.
تحقيقات للمقاطع العرضية التفاضلية للتفاعلات النووية الاندماجية نوع ديتريوم- ديتريوم.

Authors: Raad Hameed رعد حميد مجيد --- Zainab Naji Abdullah زينب ناجي عبدالله
Journal: Journal of university of Anbar for Pure science مجلة جامعة الانبار للعلوم الصرفة ISSN: ISSN: 19918941 Year: 2013 Volume: 7 Issue: 2
Publisher: University of Anbar جامعة الانبار

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Abstract

Differential cross section for the D-D fusion reaction represents an important parameter in calculating the neutron or proton yield and this calculation need to study the changes of the differential cross section with both deuteron energy and reaction angle .We see that the differential cross section are strongly effected with a range of reaction angle between [0-100] degree , and it seems that it has a maximum value when the reaction angle equal to zero because the present of the parameter cos θ in there calculated equation .From the figures we notice a good agreement between our calculated results and the experimentally results. This lead to the ability for using this model in the future for different calculations and the ability for modifying it's to construction a like formulas for another fusion reactions by depending on their physical characteristics.

المقطع العرضي التفاضلي للتفاعل الأندماجي D-D يمثل عامل مهم في حساب النتاج النيوتروني او البروتوني وهذه الحسابات نحتاج لها لدراسة التغيرات في المقاطع العرضية التفاضلية مع طاقة الديوترون وزاوية التفاعل ، لاحظنا ان المقاطع العرضية التفاضلية تتأثر وبشدة لمدى طاقي يتراوح بينMeV (18-26) ولزوايا تفاعل من (0-100)درجة ويتبين ان اعظم قيمة لهذه المقاطع العرضية التفاضلية عند الزاوية = 0 θ وذلك لوجودالعامل cosθ في معادلة الحساب, من الاشكال الموضحة بالرسم لوحظ وجود توافق جيد و مناسب مع النتائج التجريبية المحسوبة عالميا مما يقود الى امكانية اعتماد العلاقات المثبتة في بحثنا الحالي في الحسابات المستقبلية وامكانية تعديلها للتفاعلات الاندماجية الاخرى بالاعتماد على خصائص التفاعل الماخوذ بنظر الاعتبار.


Article
Serum Concentration of Vitamin D in Preeclampsia

Author: Faisal Gh. Al-Rubaye
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2011 Volume: 10 Issue: 2 Pages: 220-223
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT:BACKGROUND:Preeclampsia, the de novo occurrence of hypertension and proteinuria after the 20th week of gestation, continues to exert an inordinate toll on mothers and children alike. Vitamin D, on the other hand, has direct influence on molecular pathways proposed to be important in the pathogenesis of preeclampsia, yet the vitamin D-preeclampsia relation has not been studied.OBJECTIVE:To assess the vitamin D status of preeclamptic women in different gestational period with respect to normal pregnancy.PATIENT AND METHODS: the present study is a cross-sectional case-control study (2008-2009) At Al-Kadhimiya Teaching Hospital. Includes measurement of serum vitamin D3 in 60 patients with preeclampsia who were classified into two groups according to the gestational age:o Preeclamptics in the second trimester G1: (n=30).o Preeclamptics in the third trimester G2: (n=30,).The results were compared with 60 apparently healthy pregnant women (as controls). They were classified according to the gestational age into two groups:o Pregnants in the second trimester G3: (n=30).o Pregnants in the third trimester G4: (n=30).RESULTS:Showed a significant decrease in serum vitamin D3 in the preeclamptics as compared with the controls (p < 0.001)this was accompanied by a significant reduction of this parameter with advancing gestational age in both preeclamptic and healthy pregnents.CONCLUSION:Preeclamptics (in different gestational age groups) experienced hypovitaminosis D when compared with healthy pregnant women matched with their age and gestational age; this can be explained partly by the reduction of insulin–like growth factor which has a stimulatory effects on vitamin D3 and partly explained on genetic defects affecting fetoplacental unit.The above results were supported by the significant low level of s. vitamin D3; which call for the need for vitamin D supplementation in pregnancy.

Keywords

preeclampsia --- vitamin D.


Article
DESIGN AND SIMULATION OF PARALLEL CDMA SYSTEM BASED ON 3D-HADAMARD TRANSFORM
تصميم ومحاكاة نظام تقسيم الرمز متعدد الوصول متوازي معتمد على تحويل هادامارد ثلاثي الابعاد

Author: Ali T. Shaheen علي طويج شاهين
Journal: DIYALA JOURNAL OF ENGINEERING SCIENCES مجلة ديالى للعلوم الهندسية ISSN: 19998716/26166909 Year: 2013 Volume: 6 Issue: 4 Pages: 54-69
Publisher: Diyala University جامعة ديالى

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Abstract

Future wireless systems aim to provide higher transmission data rates, improved spectral efficiency and greater capacity. In this paper a spectral efficient two dimensional (2-D) parallel code division multiple access (CDMA) system is proposed for generating and transmitting (2-D CDMA) symbols through 2-D Inter-Symbol Interference (ISI) channel to increase the transmission speed. The 3D-Hadamard matrix is used to generate the 2-D spreading codes required to spread the two-dimensional data for each user row wise and column wise. The quadrature amplitude modulation (QAM) is used as a data mapping technique due to the increased spectral efficiency offered. The new structure simulated using MATLAB and a comparison of performance for serial one-dimensional (1-D) CDMA and parallel (2-D) CDMA is made under Additive White Gaussian Noise (AWGN), flat fading and multi-path selective fading channels conditions. It is found that 2-D CDMA has better speed and performance than serial 1-D CDMA.

تهدف انظمة الاتصالات المستقبلية الى زيادة معدلات ارسال البيانات و تحسين الكفاءة الطيفية و كذلك زيادة السعة.في هذه الدراسة تم اقتراح نظام تقسيم الرمز متعدد الوصول جديد ذو كفاءة طيفية عالية لتوليد وارسال رموز تقسيم الرمز متعددة الوصول ثنائية الابعاد من خلال قناة ثنائية الابعاد في تداخل الرموز لزيادة سرعة الارسال. لقد تم استعمال تحويل هادامارد ثلاثي الابعاد لتوليد رموز انتشار ثنائية الابعاد لغرض نشر البيانات ثنائية الابعاد لكل مستخدم بشكل ثنائي الابعاد باتجاه الصفوف وباتجاه الاعمدة. تم استخدام مـُسقط الــ ( (QAM كتقنية تسقيط لغرض زيادة الكفاءة الطيفية بشكل اكبر. لقد تمتمثيل التظام الجديد باستعمال الماتلاب وتمت مقارنة اداءه مع النظام التقليدي المتسلسل ذو البعد الواحد في قنوات ذات الضوضاء البيضاء المضافة جاوسية الشكل (Channel AWGN )وذات الوهن المستوي (Flat Fading Channel) وذات الوهن الاانتقائي للتردد ,(Selective Fading Channel) حيث وجد ان النظام الجديد المتوازي افضل في الاداء واسرع من النظام التقليدي المتسلسل.


Article
Vitamin D Status in Hemodailysis Patients, A Single Center Study

Author: Adnan Abdhuladeem Mahdi , Mohammed Hannon Al-Sodani, Suad Al-Windawi , Mohammed Hannon Al-Sodani
Journal: Iraqi Academic Scientific Journal المجلة العراقية للاختصاصات الطبية ISSN: 16088360 Year: 2015 Volume: 14 Issue: 4 Pages: 499-505
Publisher: The Iraqi Borad for Medical Specialization المجلس العراقي للاختصاصات الطبية

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Abstract

ABSTRACT:BACKGROUND:Vitamin D deficiency and insufficiency are common in patients with End Stage Renal Disease(ESRD). Vitamin D has been found to have beneficial effects on bone, cardiovascular and immune functions. There are little data about vitamin D levels in Iraqi patients on hemodalysis..OBJECTIVE:This study was conducted to determine the vitamin D status of Iraqi patients with ESRD on hemodialysis.PATIENTS AND METHODS:This study is a cross sectional study conducted at The Dialysis Center/ Baghdad Teaching Hospital . An eighty four patients with End Stage Renal Disease (ESRD) on regular Hemodialysis (HD) enrolled in the study from January to February 2013.The basic data of the patients had been obtained (age ,weight ,duration on HD (months), infection with HCV, drugs doses for calcium and alphacalcidol . Blood samples were collected at the start of the HD session from the vascular access for calcium, phosphorus, albumin, cholesterol, uric acid and Vitamin 25(OH) D3 blood levels. These samples were sent for analysis to the Teaching Laboratories at Medical City. Patients were considered as vitamin D3 insufficient if the levels were between 10 and 30 ng/ml , deficient if the levels were less than 10 ng/ml and sufficient if it was ˃30 ng/ml We assess the correlation between vitamin D3 level and other variables tested in the study. RESULTS:The mean age of the patients was 49.8 ± 13.2 years, of these, 40 (47.6٪) were females and 44 (52.4٪) were males. Fifty five (65(٪ patients were infected with hepatitis C virus and 29(35٪)were not . the median dose of calcium carbonate was 1086.1 ± 400 mg per day, The median dose of alphacalcidol was1.9 ± 1.1 mcg /week. Mean weight was 68.8 ± 17.5 kg. Median duration of HD was 24.8 ± 20.8 months (range 2–72 months).The patients were on twice a week (6-8 hours/week) HD sessions.Mean of serum albumin, corrected calcium, phosphorus, Uric acid cholesterol were 3.0 ± 0.8 g/dl., 8.6 ± 1.4 mg/dl, 3.9 ± 1.4 mg/dl , 6.1 ± 2.4 mg/dl, 149.9 ± 39.2 mg/dl respectively .Mean vitamin 25(OH) D3 level was 33.02 ± 7.2 ng/ml. 60(71.4٪) patients were vitamin D3 sufficient, 23(27.4٪) patients were vitamin D3 insufficient and only one (1.2٪) patient was vitamin D3 deficient.There was a significant correlation between vitamin 25(OH)D3 levels and albumin , duration of HD, virology status while there was no correlation between weight, sex ,age , activity, calcium, cholesterol, uric acid , phosphorus ,dose of alphacalcidol or calcium carbonate and vitamin 25(OH)D3 level .CONCLUSION:The vitamin D insufficiency found in about one quarter of patients on hemodialysis while deficiency found only in 1.2% of patients and more than two third of patients had sufficient vitamin D3. There was a significant correlation between vitamin 25(OH)D3 levels and albumin , duration of HD, virology status..


Article
The use of D-dimer in exclusion of diagnosis of suspected Deep Vein Thrombosis

Authors: Rasha Tariq Jawad --- Hussein Hasan Abed --- Lamyaa Jaafar Hammoodi Alqaisi
Journal: Iraq Joural of Hematology المجلة العراقية لامراض الدم ISSN: 20728069/25432702 Year: 2015 Volume: 4 Issue: 2 Pages: 45-58
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background: Deep venous thrombosis is a common disorder associated with significantmorbidity, chronic venous insufficiency as well as fatal pulmonary embolism. venography hasbeen the gold standard of diagnosis, however it has been replaced in most areas by duplexultrasound which is generally very good method .An interesting new approach to the diagnosis ofDVT is D-dimer testing, D-dimer levels reflect the amount of lysed, crossed-linked fibrin andmay be useful diagnostic marker in the clinically suspected DVT .D-dimer can be measuredeither quantitatively by ELISA or qualitatively by latex agglutination.Objectives: The aim of the study was to evaluate the use of D-dimer in exclusion of the diagnosisof DVT.Patient and methods: A total of 50 patients presented to vascular outpatient department withclinical suspicion of DVT have been studied ,patients with old DVT ,patients on anticoagulant,and patient with severe infection or inflammation were excluded .Venous duplex ultrasonographyof the affected limb or limbs was done and citrated blood sample was analyzed for D-dimer by aVIDAS method for all patients blindly to the results of venous duplex .Sensitivity ,specificity,negative and positive predictive values were calculated .ROC curve then was generated fromsensitivity and 1 _ specificity values at a continuum of D-dimer level to determine the optimalcut-off level of VIDAS D-dimer for exclusion of DVT.Results: The mean age of DVT group was 43 year. DVT was confirmed in 37 patients (74%),and excluded in 13 patients (26%) by venous duplex .The mean D-dimer level in the DVT groupwas 5498.021ng/dl while in non DVT group was 1906.384ng/dl this difference was statisticallysignificant (P=0.0003). The sensitivity , specificity , negative and positive predictive values ofVIDAS method at cut-off points(500 and 900) ng/dl were ( 100% , 33% , 100% , 82% )respectively ,and at 3000ng/dl ( 71% ,75%, 47%,90% ) respectively Conclusions: VIDAS D-dimer method is a sensitive method that can be used in the initialmanagement of deep vein thrombosis if a level of 900ng/dl is used as a cut-off point for exclusionof deep vein thrombosis. VIDAS D-dimer method is not a specific test so it cannot be used for thediagnosis of deep vein thrombosis.

Keywords

D-Dimer --- Diagnosis --- DVT


Article
Image Denoising Using Hybrid Transforms
ازالة الضوضاء من الصورة باستخدام التحویلات الھجینة

Authors: Raghad Aladdin Jassim --- Walid Amin Mahmoud
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2007 Volume: 25 Issue: 5 Pages: 669-682
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this paper a new family of transformation for image denoising ispresented, Multiridgelet and Walidlet transforms, which have been proposedas alternatives to Discrete Wavelet and Multiwavelet transforms.Walidlet transform is an intelligent tool for solving image processingproblems such as image denoising with straight edges, the general algorithmof image denoising using discrete multiwavelet transform is introduced, thenfollowed by the general algorithm of image denoising using Walidlettransform that is proposed here in order to achieve better results than that forWalidlet thresholding, finally, a comparative study is presented to show thedifferences between a mentioned algorithms.

تتناول ھذه المقالة مجموعة جدیدة من التحویل لغرض ازالة الضوضاء من الصورةاللذین تم اقتراحھما ,( Walidlet وولیدلیت Multiridgelet وھي تحویلات ( ملتیرجلیت.Multiwavelet وتحویل المتعدد المویجات Wavelet كبدائل لتحویل الموجة المتقطعان تحویل ولیدلیت ھو اداة ذكیة لحل مشاكل معالجة الصورة مثل ازالة الضوضاء منالصورة مع تقویة حواف الصورة , حیث تم عرض الخوارزمیة العامة لازالة الضوضاء منالصورة باستخدام تحویل متعدد المویجات وتحویل ولیدلیت المقترح مع تطبیق عملیة العتبةللحصول على افضل النتائج الممكنة, واخیرا دراسة المقارنة بین ( Thresholding )الخوارزمیتین المذكورتین اعلاه واظھار الفرق في نتائج ھاتین الخوارزمیتین.


Article
Association verbale Recherche présentée Par

Author: Ouadi Younis Idham
Journal: journal of Human Sciences مجلة العلوم الانسانية ISSN: 19922876/25239899 Year: 2012 Volume: 1 Issue: 10 Pages: 342-350
Publisher: Babylon University جامعة بابل

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Abstract

Au cours de la dizaine d’années de notre travail comme un professeur de français et aussi d’anglais soit dans les écoles primaires ou secondaires soit dans les universités irakiennes, nous sommes arrivés aux conclusions qui confirment l’application par les étudiants de certaines stratégies universelles d’apprentissage. De nombreux faits linguistiques confirment l’action de la régularisation. Cette stratégie d’apprentissage représente une expression de la tendance générale humaine « à faire entrer dans différentes, catégories les divers faits rencontrés et, comme telle, à extraire un critère commun, en auto- formulant une règle, appliquée ensuite dans une autre situation où semble se présenter le critère découvert auparavant» . L’action de la régularisation touche la plupart des aspects principaux de la morphologie du français: la formation du pluriel, des substantifs, la déclinaison, la conjugaison


Article
Prevalence of Vitamin D Deficiency in Iraqi Female at Reproductive Age

Author: Hayder A. Hantoosh, Mayyadah H. Mahdi, Ban W. Imran, Ansam A. Yahya
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2019 Volume: 16 Issue: 2 Pages: 119-122
Publisher: Babylon University جامعة بابل

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Abstract

Background: Vitamin D, a fat‑soluble vitamin that now is recognized as a prohormone that recently has an important role in the reproductivehealth. Vitamin D deficiency (VDD) had high prevalence worldwide and was estimated to affect about 50% of the population worldwide.Hypovitaminosis D related to several health problems in women such as infertility, polycystic ovarian syndrome endometriosis, andpregnancy‑related complications such as preeclampsia and caesarian section. Objective: The aim of the study is to evaluate the serumlevel of Vitamin D in sample of Al‑Hilla women at reproductive age. Materials and Methods: The total number included in the study was500 patients. They were companions of patients visiting specialist gynecologic and obstetric private clinics in Hilla City from first of October2017 to end of March 2018 the patients were grouped into three groups according to their age: Group 1: Patients aged (15–30) years. Group 2:Patients aged 31–40 years. Group 3: Patients aged more than 40 years and premenopausal. The data were collected which were then analyzedstatistically and registered. Results: Whole sample mean serum Vitamin D level 15.85 ± 7.69 and the percentage of deficiency over all thesample was 76%. Regarding the result in each group, Group 1 include 350 patients, mean age (23.8 ± 3.96), and mean serum Vitamin Dlevel (16.16 ± 7.69), t‑test was statistically significant P < 0.05. Group 2 include 119 patients, mean age (35.2 ± 2.9), and mean serum VitaminD level (15.14 ± 7.42), t‑test was statistically significant P < 0.05. Group 3 include 31 patients, mean age (42.81 ± 1.45), and mean serumVitamin D level (14.82 ± 7.77), t‑test was statistically significant P < 0.05. Conclusion: Results of our study revealed a widespread, severeVDD in women at reproductive age with aproportion of deficiency in the whole sample of 76% and proportion of insufficiency 18% whileonly 7% had sufficient Vitamin D Serum level.


Article
3-D Virtual Maps Production for Mosul City by USING GIS Techniques
انتاج خوارزمية ثلاثية الابعاد لمدينة الموصل باستخدام نظرية المعلومات الجغرافية

Authors: Abdul Razzak T.Ziboon --- Amjed Naser Mohsin
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2009 Volume: 27 Issue: 9 Pages: 1775-1789
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

With the developments in digital image processing techniques, 3D models of objects are transferred to the digital form from the hardcopy form. 3D visualization was performed by using Erdas Imagine Virtual GIS module. The model was enhanced with huge additional data. Since the model covers a very huge area of Mosul city, more information was added to the model to show the location names.Also local services and road network was superimposed to the visualization. As a resultof research, a user can fly over all Mosul city, may watch the topography, towns, local services places by using this model ,also the final 3d digital map contain all necessary information for users and designers to reach to the best decision.

مع التطور الحاصل في مجال تقنيات الصور الفضائية الرقمية, النماذج ثلاثية الابعاد للعوارض حولت الى الشكل الرقمي المأخوذ اصلأ من الشكل الورقي. الرؤية ثلاثية الابعاد نفذت بأستخدام برنامج .Erdas Imagine Virtual GISالنموذج المستخدم أثري بالبيانات الاضافية الضخمة.كون النموذج يغطي مساحة شاسعة من مدينة الموصل الكثيرمن المعلومات أضيفت للنموذج لمعرفة أسماء المواقع , كذلك الخدمات العامة و شبكة الطرق تم تسقيطهما للرؤية ثلاثية الابعاد .كنتيجة للبحث المستفيد منه بأمكانه النظر لمدينة الموصل وكأنه يطير وممكن ان يراقب التضاريس والقرى والخدمات العامة المسقطة بأستخدام النموذج المنتج. أخيرا الخارطة ثلاثية الابعاد المنتجة تحوي كل المعلومات الضرورية للمستخدمين و المصممين لأتخاذ القرار الامثل.

Keywords

GIS --- 3-D Map --- DEM


Article
Structural , Morphological and Electrical Properties of AgSbSe2 Thin Films
الخواص التركيبية والكهربائية لاغشية AgSbSe2 الرقيقة

Authors: Bushra A.Hasan --- Issam M. Ibrahim
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2015 Volume: 33 Issue: 7 Part (B) Scientific Pages: 1283-1289
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

AgSbSe2thin films with different thicknesses (100,300,500, and 700nm) have been deposited by single source vacuum thermal evaporation onto glass substrates at ambient temperature to study the effect of thickness on its structural morphology, and electrical properties. The X–ray diffraction patterns of AgSbSe2thin film show that with low thickness (t=100,300 and 500nm) have amorphous structure convert to polycrystalline structure with increase thickness to 700 nm..AFM measurements show that the average grain size increases while the average surface roughness decreases with the increase of thickness. The DC conductivity of the vacuum evaporated AgSbSe2thin films was measured in the temperature range (298-473)K and was found to increase on order of magnitude with increase of thickness. The plot of conductivity with reciprocal temperature suggests, there are two activation energies Ea1, andEa2 for AgSbSe2for all and thicknesses which decrease with increasing thickness. The electric carrier concentration and mobility show opposite dependence upon thickness.

تم تحضير اغشية رقيقة من AgSbSe2 باسماك مختلفة (t=100,300 , 500and 700nm) عند درجة حرارة الغرفة على قواعد من الزجاج استخدام طريقة التبخير الحراري وتحت الفراغ لدراسة تأثير السمك على الخواص التركيبية والكهربائية. طيف الاشعة السينية اظهر ان اغشية AgSbSe2 وعند الاسماك الواطئة t=100,300 , 500 كانت لها ذات عشوائية التركيب تحولت الى متعددة البلورات عند زيادة السمك الى t=700nm .فحص مطياف القوى الذري اظهر ان معدل حجم الحبيبة لاغشية AgSbSe2 ازداد بينما هبط معدل الخشونة مع زيادة السمك. قياس التوصيلية الكهربائية المستمرةلاغشية AgSbSe2 المحضرة بالتبخير الحراري ضمن مدى درجات الحرارة(298-473)K اظهرت ان التوصيلية ازدادت رتبة واحدة مع زيادة السمك.العلاقة بين مقلوب درجة الحرارة ولوغارتم التوصيلية بينت ان هناك طاقتي تنشيط Ea1 و Ea2 لاغشية AgSbSe2 لجميع الاسماك والتي تناقصت قيمهما مع زيادة السمك . كثافة حاملات الشحنة والتحركية ظهرت سلوكا معكوسا مع زيادة السمك.

Keywords

AgSbSe2thin films --- D.C --- XRD

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