This paper presents a procedure for the free vibration analysis of stiffened conical shell by the finite element method. The element used is a modified eight-node superparametric shell element. The effects of the number and cross-section area of stiffeners on the conical shells were analyzed. The results showed that increasing the number of stiffeners and their cross-'i'ectional area tend to increase the natural frequency of the conical shell. These results are iompared with available research results and those obtained from MSC\NASTRAN .
MR Younus, Al-A'DAB, 2011
The present study aimed to examine the concordance between FISH/CISH techniques for assessment of amplification of her2neu gene in Iraqi breast carcinoma patients. Seventy four (74) Iraqi breast cancer patients were involved at the study from the Histopathology Department at the Central Public Health Laboratory in Bagdad, Iraq. Amplification of HER2neu was detected in (33.8%) by fluorescence in situ hybridization and (13.51%) showed high amplification by chromogenic in situ hybridization and (32.43%) showed low amplification. The results of chromogenic in situ hybridization were significantly correlated with the results of two-color fluorescence in situ hybridization with the same tumors. In addition, the study involved the correlation betw
... Show MoreAromatic Schiff-bases are known to have antibacterial activity, but most of these compounds are sparingly soluble in water. The present work describes the synthesis of new Schiff-bases derived from branched aminosugars. Treatment of 3-Amino-3-Cyano-3-Deoxy-1,2:5,6-Di-O-Isopropylene-α-D-Allofuranose (1) with the aldehydes (2) under reflux in methanol afforded the Schiff-bases (3) in good yields. The new Schiff-bases were in accord with their NMR, IR spectral data and elemental analysis.
The remove of direct blue (DB71) anionic dye on flint clay in aqueous solution was investigated by using a batch system for various dye concentrations. The contact time, pH, adsorbent dose, and temperature was studied under batch adsorption technique. The data of adsorption equilibrium fit with isotherm Langmuar and Freiundlich ,when the correlation coefficient used to elucidate the best fitting isotherm model. The thermodynamic parameters such as, ?Hº ,?Sº and ?Gº. Thermodynamic analysis indicated that the sorption of the dyes onto Flint clay was endothermic and spontaneous.
ZnO organic hybrid junction (electroluminescence EL device) was fabricated using phase segregation method. ZnO-nanoparticle (NPs) was prepared as a colloidal by self–assembly method of Zinc acetate solution with KOH solution. Nanoparticle is employed to form organic-inorganic hybrid film and generate white light emission, while N,N’–diphenyl-N,N’ –bis(3-methylphenyl)-1,1’-biphenyl 4,4’-diamine (TPD) and polymethyl methacrylate (PMMA) are adopted as the organic matrices. ZnO NPs was used to fabricate TPD: PMMA: ZnO NPs hybrid junction device. The photoluminescence (PL) and electroluminescence (EL) spectra of the TPD: PMMA: ZnO NPs hybrid device provided a broad emission band covering entirely the visible spectrum (∼350-∼700
... Show MoreIn this study we examine variations in the structure of perovskite compounds of LaBa2Cu2O9, LaBa2CaCu3O12 and LaBa2Ca2Cu5O15 synthesized using the solid state reaction method. The samples’ compositions were assessed using X-ray fluorescence (XRF) analysis. The La: Ba: Ca: Cu ratios for samples LaBa2Cu2O9, LaBa2CaCu3O12 and LaBa2Ca2Cu5O15 were found by XRF analysis to be around 1:2:0:2, 1:2:1:3, and 1:2:2:5, respectively. The samples’ well-known structures were then analyzed using X-ray diffraction. The three samples largely consist of phases 1202, 1213, and 1225, with a trace quantity of an unknown secondary phase, based on the intensities and locations of the diffraction peaks. According to the measured parameters a, b, and c, every sa
... Show MoreObjective(s): 1- Assess the effectiveness of health educational program on nurses' knowledge toward Hemodialysis at Pediatric Teaching Hospitals.
2-To find out the relationship between nurses' knowledge about hemodialysis and their demographic Characteristics.
Methods: The study was designed in a pre-experimental pattern for the nurses' working in the Child Welfare Teaching Hospital and the Child's Central Teaching Hospital, and a targeted sample consisting of (30) nurses was selected. It is tested in three periods of pre-test, the first post-test, and the second post-test. Participants were tested before implementing the tutorial (tutorial lectures
... Show Moreهدفت الدراسة الى تحديد وتعديل اختبار للتحصيل المعرفي لبعض مهارات التصويب بكرة اليد لطلاب المرحلة الثانية كلية التربية البدنية وعلوم الرياضة فضلاً عن التعرف على تأثير استخدام الوحدات التعليمية بأسلوب الاستقصاء في مستوى التحصيل المعرفي لبعض انواع التصويب بكرة اليد لدى عينة البحث، واعتمد الباحثان المنهج التجريبي، وبلغ عدد عينة البحث (16) طالباً لكل مجموعة تجريبية وضابطة، وقام الباحثان بتطبيق ت
... Show MoreAuthentic materials are the most important tools that the teacher could use in class in order to make teaching go smoothly and effectively in transmitting the necessary knowledge to all students. This research has investigated experimentally the effect of using authentic materials in teaching English as a foreign Language, because a number of studies point out that the use of authentic materials is regarded a useful means to motivate learners, arouse their interest and expose them to the real language they will face in real life situations.
It is hypothesis that there is no statistical significance difference between the experimental group who taught English as a foreign language by using the authentic materials with those
... Show Moreتكمن أهمية البحث في وضع تمارين مهارية خاصة لنمطي من أنماط التفكير (C،B) لغرض تعلم مهارة
تتحدد مشكلة البحث في ضياع الجهد التدريبي مع طلاب لم يتم اختيارهم علميا وبحسب مواصفات تتماشى ومؤهلات اللاعب لمركز أو خط اللعب في كرة القدم لهذا جاءت أهداف البحث تسعى إلى تصنيف مفردات عينة البحث بحسب المتغيرات الانثروبومترية ومقارنة هذه الصنوف في القدرات الحركية والمهارية التي يتمتع بها أفراد تلك العينات المصنفة.
و
... Show MoreIsolation and identification fungi of Emericella nidulans and Aspergillus flavus from a pinkish and yellowish artificial clay, by using potato dextrose agar (PDA). Results revealed that E. nidulans was the best for degrading anthracene (92.3%) with maximum biomass production (3.7gm/l), compared to A. flavus with the rate of degradation (89%) and biomass production of (1.2gm/l), when methylene blue was used as redox indicator after incubating in a shaker incubator 120rpm at 30Co for 8days. Results indicated that E. nidulans has a high ability of anthracene degradation with the rate of (84%), while A. flavus showed the lower level with (77%) by using HPLC.
يعد الخطر المؤمن منه الصفة الملازمة للصناعة النفطية عن غيرها من الصناعات الأخرى . ويرجع السبب في ذلك إلى طبيعة المواد المتداولة فيها وقابليتها على الاشتعال السريع , و تعقيد عمليات التصنيع التي تتطلب توخي الحذر عند التعامل معها في جميع مراحلها بدءاً من مرحلة المنبع Up stream)) وهي مرحلة البحث و التنقيب ثم استخراج النفط وصولاً إلى مرحلة المصب وإرسال المنتج إلى المستهلك (down stream) .
وتتميز تنفيذ المشاري
... Show Moreخلفية البحث: فصال عظم اليد مرض شائع يسبب الما وتأثيرا حقيقيا على وظيفة اليد. سمك باطنة –وسطى الشريان السباتي معيار لقياس تصلب الشرايين. زيادة سمك باطنة –وسطى الشريان السباتي يترافق مع زيادة المراضة والوفيات القلبية الوعائية.لذلك فان التشخيص والعلاج المبكرين يمكنهما تحسين نوعية الحياة.
الهدف:-تقويم مدى العلاقة بين الفصال العظمي لليد مع مرضيات الاوعية الدموية وتقويم متنبئات ه
... Show MoreBackground: Aqueous extracts of black tea exhibited antimicrobial activity against wide range of bacteria.
Aim of study: In this investigation the antimicrobial ly active components of this extract were identified and characterized. The minimal inhibitory concentration (MIC) for each one was determined.
Subject & Methods: the active components of the aqueous extract were identified and characterized. The minimal inhibitory concentration (MIC) for each was determined. Tannic acid, theophylline, caffeine and theobromine were isolated by thin layer chromatograhy (TLC) and purified by silica gel column. MIC was assessed by using agar dilution method.
Results: Broad spectrum activity of three components excluding theobromine agai
The general objective of the research is to better understand changes in land cover and their impact on climatic factors by measuring changes in land cover for the Baghdad city for the period 1999-2021 and evaluating changes in land cover and measuring changes in climatic factors (relative humidity and evaporation). This study from 1999 to 2021 and in two different seasons: the April of the growing season and August the dry season. When using the supervised classification method to determine the differences, the results showed remarkable changes, the study showed the spatial variations in LC from 1999 to 2021 as follows: increase in the vegetation and water bodies during April and decrease this in August while the soil and built up decreas
... Show MoreStudying the history of sports and knowing their achievements is of great importance as it is considered a means of advancement for societies and a measure of their culture and stages of development in all fields. One of the important sports games at the international and local levels is volleyball, which has a long history at the global level. The importance of the research lies in knowing the teams participating in the Asian championships and their most important results and where they were held from the first Asian Championship for men's teams in (1975) until the last championship held in Japan in (2021). Through the teams' participation in the Asian Men's Volleyball Championships, many teams have emerged on the Asian scene. The quest
... Show MoreThe research aimed to prepare exercises area intensity third strength distinctive speed of the two men for young players basketball, and to identify its impact on the adequacy of the circulatory and respiratory systems and in the performance of some of their basketball skills, and the researcher assumed that there are statistically significant differences between the results of the pre- and post-tests of the experimental and control research groups for each of the adequacy of the circulatory and respiratory systems and the performance of some basketball skills, and there are statistically significant differences between the results of the tests of the experimental research groups and the dimensional control for each of the adequacy of Th
... Show MoreSome of the issues that have become common in our society recently after the Americans entered our country and were rubbed by some security agencies: obtaining some information from children, and the serious consequences that may lead to the lives of innocent people, became common interrogation of some security agencies and rely on their words.
There are significant cases where their testimony needs to be heard, such as their presence in some places where incidents are not witnessed by others, such as schools or being witnesses to certain crimes.
I saw the study of this case in the light of Sharia and law
This research discusses the logic of the balance of power in the field of International Relations. It focuses on the structural-systemic version of the theory because of its centrality to the realist research program within the field. The paper examines the conventional wisdom, which argues that balances of power, in a self-help system, will form regardless of the state’s motives (or intentions); It emerges as an unintended recurring consequence of the interaction of units in anarchy, which primarily seeks superior, not an equal power. This logic assumes that hegemony does not form (or fail) in a multi-state system, because its threats (actual or perceived) to the system instill fear and provoke counterbalancing behavior by other state
... Show MoreSummary:
OBJECTIVE Many associations have been found between specific HLA antigens and increased susceptibility to various diseases . So we tried to associate class I and class II antigens with acute lymphoblastic leukemia . We also demonstrate the presence of antibodies in serum of acute lymphoblastic leukemic patients against HLA class I.
DESIGN: Prospective study.
SETTING: Tissue typing and histocompatibility center at Al- Karamah Teaching Hospital. PATIENTS AND METHOD: 70 acute lymphoblastic leukemia patients from pediatric hospitals. HLA ( human leukocyte antigens) typing done for them by serological method and cross matching and blood grouping were also done for them.
RESULTS: there was significant difference between pa
العوامل المسببة لركود الصفراء في مرحلة الطفولة المبكرة في مستشفى حماية الأطفال التعليمي
نبذة مختصرة:
الخلفية: يتم تعريف الركود الصفراوي لحديثي الولادة على أنه ارتفاع مستمر في مستوى المصل من البيليروبين المترافق بعد الأيام الـ14 الأولى من الحياة. هناك العديد من الأسباب لحدوث الركود الصفراوي لحديثي الولادة ويجب تفريقها عن بعض لأن ال
... Show MoreThe duration of sunshine is one of the important indicators and one of the variables for measuring the amount of solar radiation collected in a particular area. Duration of solar brightness has been used to study atmospheric energy balance, sustainable development, ecosystem evolution and climate change. Predicting the average values of sunshine duration (SD) for Duhok city, Iraq on a daily basis using the approach of artificial neural network (ANN) is the focus of this paper. Many different ANN models with different input variables were used in the prediction processes. The daily average of the month, average temperature, maximum temperature, minimum temperature, relative humidity, wind direction, cloud level and atmosp
... Show MoreThe map of permeability distribution in the reservoirs is considered one of the most essential steps of the geologic model building due to its governing the fluid flow through the reservoir which makes it the most influential parameter on the history matching than other parameters. For that, it is the most petrophysical properties that are tuned during the history matching. Unfortunately, the prediction of the relationship between static petrophysics (porosity) and dynamic petrophysics (permeability) from conventional wells logs has a sophisticated problem to solve by conventional statistical methods for heterogeneous formations. For that, this paper examines the ability and performance of the artificial intelligence method in perme
... Show MoreCredit derivatives (CDs) have been increasingly acknowledged as an important requirement to hedge and transfer credit risk CR. Nonetheless, they have been extensively criticized for destabilizing the whole economic system bringing about the latest subprime credit crisis. The study’s main aim is to investigate the reason for the use of (CDs), whether it is used for hedging or trade purpose, for four of the US international financial institutions that had made it through the 2007 crisis to resume functioning post-crisis. This will be for three different and critical periods, namely the pre, during and after crisis periods (Q1, 2000-Q1, 2014). Adopting the SUR technique, the investigation of the factors that influence the net position of (CD
... Show MoreAbstract:
The current research included " Diagnosis of the reality of the gap for the requirements of Business Continuity Management System According to International Standard (ISO 22301: 2012) in Midland Refineries Company (Daura Refinery) " , for development of an administrative system for Business Continuity is considered a priority in the present day, and in the light of the organizations dependence on computers and information technology in work and communication with others . the international legitimacy (represented by the international organization for standardization (ISO)) remains the basis for matching and commitment , and the importance of the application of Business Continuity Management Syst
... Show More