The aim of this study is to determine the flexural properties of steel fiber as a metal fiber and polyester resin as a matrix. The steel fibers were added to polyester resin at the various fiber volume fractions of 5, 10, and 15% steel fiber, and with different fiber orientations such as woven steel fiber type (0-45) ° and woven steel fiber type (0-90) ° indicate. Hand layup processes in these experiments were used to produce specimens test with the curing time of 24 hr. for the composite at room temperature. The results show that the flexural strength and flexural modulus values for 15 % vol.of woven steel fiber composite type (0-90) ° are (210MPa) and (2.29GPa( respectively. The results above indicate that the woven steel fiber (0-9
... Show MoreThis study includes isolation, purification, and identification of algae from different aquatic environments in Baghdad city. Nine unialgal cultures were obtained. These algal cultures included 6 species of blue-green algae (Microcystis aeruginosa, Microcystis flos-aquae, Oscillatoria limnetica, Nostoc carneum, Westillopesis prolifica, Mastigocluds lamiosus), and 3 species of green algae (Mougeotia sclaris, Scenedesmus dimorphus and Chlorella vulgaris). In addition that aerial parts from Convolvulus arvensis were collected. Terpens, alkaloids and phenols were extracted of mentioned plant, and the antialgal activity of extracts types were evaluated in 3 concentrations (5, 10, and 20 mg/ml) by wells and diffused in the agar media. Results
... Show MoreInformation retrieval is the task, given a set of documents and a user query, of finding the relevant documents. Information retrieval applications require speed, consistency, accuracy and ease of use in retrieving relevant texts to satisfy user queries. This paper presents an automatic tool to retrieve documents based on Compact Genetic Algorithm (cGA). The similarity between queries and documents is computed with cosine coefficient, dice's coefficient, and Jaccard coefficient that are used as the fitness functions. Experimental results show that cGA can be successfully applied to information retrieval.
In this paper the problem of, unsteady, hydromagnatic free convective flow of
viscous incompressible and electrically conducting third order fluids past in infinite
vertical Porous plate in the presence of constant suction and heat absorbing sinks is
considered. It is found that the velocity and temperature distribution equations are
controlled by different dimensionless parameters, namely, Grashof number Gr,
prandtl number pr, Eckert number Ec, sink strength s, material moduli β and
coecostic parameter α. An analytic solution for each of the velocity and the
temperature distribution is obtained. The velocity and temperature distributions are
shown graphically taking many cases of Gr, pr, Ec, s,
Calculation of cross section forρmeson production in real photon proton interactions has been carried out in terms of Regge theory. The amplitude of is used for calculating the coupling of the exchanged particle at the photon - vector meson vertex. We only need to replace the coupling of the pion to quarks by the coupling of the exchanged particle to quarks. This coupling has been fixed by the experimental data. A comparison of the model with data shows an excellent agreement.
An Estimation is a direct summation that can produce new data from past measurements. In this study, we confirm the possibility of using the (WEKA) program in estimating the monthly values of some climatological parameters and investigate the influence of the time series' length parameters on the accuracy of estimation for selected regions of Iraq. Satellite data were used, which represent the monthly values for each of the minimum and maximum temperature, wind velocity, and relative humidity for the 1981 – 2021 time period, the absolute error rate (MAE), and the square root of the error rate (RMSE) with the correlation
( R2) are also identified to test the confidence of the prediction. Using (WEKA) software, which
... Show MoreThe effects of yeast extract on embryogenic callus growth of date palm cv. Ashkar were studied. Various concentrations of yeast extract were used ( 0 , 50 , 100 , 250 , 500 and 1000 ) mg/L with two concentrations of the cytokinin 2ip (0 , 1) mg/L. Results showed that the conc. 250 mg/L in the absence of the cytokinin 2ip gave maximum fresh weight and length of somatic embryos , but this was not significantly differed from the control in dry weight. The conc. 50 mg/L in the presence of the cytokinin 2ip gave the highest number of somatic embryos. In addition, it was observed a browning in embryogenic callus at high concentrations of yeast extract (500 and 1000)mg/L. Thus, it is possible to use the yeast extract for growth of the embryogen
... Show MoreThe cytosine deaminase was extracted by using organic solvent toluene and the value of specific activity of crude extract was (9.6) mu/mg protein . The enzyme was purified in few steps including precipitating the enzyme by using ammonium sulfate at defferent saturation percent, The optimum percent was 60% saturation percent which gave value of specfic activity of (12.5) mu/mg protein fold of purification was (1.302) times and the yield was 4.82% . Then the enzume solution was passed through DEAE – cellulose column chromatography. The peaks was collected and the value of specific activity was measured which was (358) mu/mg protein, fold of purification was (37.29) times, and the yield was (2.55)%.
The enzyme solution was concentrat
Background: In Ulcerative colitis (UC), the presence of a persistently elevated number of T cells in the inflamed area with respect to the activity of the disease suggesting bad prognosis. This study was done to evaluate cellular immune response in different disease activity patterns and its possible implication in evaluation of disease activity.
Materials and methods: This study included Forty seven archived paraffin-embedded samples of ulcerative colitis; these samples diagnosed and graded for disease activity. Then dual
immunofluorescence staining was used for phenotyping of lymphocytic infiltrate (CD3- CD19) and (CD4-CD8). A total and differential T cell as well as plasma cell count was recorded in thes
Rupture of the trachea or main bronchus can occurs during severe chest trauma and this event has been reported since more than a century. This is a report of a 19 year old male patient sustained car accident leading to loss of consciousness due to multiple trauma ,involving specially the head and the chest that he needs assisted ventilation in an intensive care unit and later a tracheostomy .The patient regain his consciousness gradually , and a late diagnosis of traumatic rupture of the left main bronchus , which was approved by bonchoscopy and CT chest .Surgical repair of the ruptured left main bronchus was accomplished sixty days from the admission with the lung fully expanded on a post operative che
... Show Moreخلفية: التسرطن القولون والمستقيم الإنسان هي عملية معقدة، عملية متعددة الخطوات وmultigenetic. مصفوفة الفلزي-2 و 2-انزيمات الأكسدة الحلقية هي انزيم رئيسي في تدهور المواد خارج الخلية، وأعرب أكثر من ظهائر في عدة مثل غدية القولون والمستقيم.
الأهداف: تم تصميم هذه الدراسة للكشف عن التعبير عن مصفوفة الفلزي-2 و 2-انزيمات الأكسدة الحلقية في المرضى الذين يعانون من سرطان القولون والمستقيم والعلاق
... Show Moreالخلفية :- دراسة نخاع العظم لازالت هي النقطه الاساسيه التي تعكس فعالية ونشاط نظام بناء الخلايا الدمويه, الامراض الدمويه وبعض الامراض العامه في جسم الانسان.
ان من الصعب اعطاء التشخيص النهائي لامراض الخلل النخاعي المتشعب لحد الان بسبب تشابه المؤشرات والخواص الطبيه بالاضافه الى النسيجيه مثل تليف نخاع العظم والذي يعتبر مهما لانه يؤثر بشكل من الاشكال على نشاط نخاع العظم.
... Show MoreThe philosopher and social psychologist Erich Fromm (1900-1980), in his book "Escape from Freedom" highlighted the distinction between the "I" of the authoritarian personality and the "I" of the destructive personality based on their stance towards "the other." The former (the authoritarian self) relies on a submissive, enslaving formula, where the "I" is the master/dominator/controller/strong, while "the other" is the servant/submissive/controlled/weak, essential for perpetuating this formula. In contrast, the latter (the destructive self) relies on an annihilating, negating formula, where the "I" is existence/killer/destroyer/pe
... Show MoreBackground:The diabetogenic agent alloxan is a selective necrosis of insulin producing cells .Alloxan accumulated rapidly in liver and pancreatic islets , this study was carried out to evaluate the antidiabetic effect of cinnamon oil on the destructive effect of alloxan in liver and intestine diabetic tissues .
Materials and methods:Thirty male rats were used and divided into threegroups: Group I =10 animal controls, Group II =10 treated with alloxan, Group III = 10 treated with alloxan + cinnamon oil .
Results:Liver and intestine tissues of diabetic groups revealed necrotic, degeneration of cells (histologically ) , increase in blood serum enzymes for acid and alkaline phosphatase , total protein&nbs
Background: Acrylic resin dentures are susceptible to fracture; it is unresolved problem in prosthodontics. The repair procedure should be simple, strong, and accurate. This study evaluated the transverse and impact strength of autopolymerizing acrylic resin, the repair material was modified with kraft lignin as a new enforcement material and compared with the commercially available self cured acrylic resin.
Materials and Methods: The addition of kraft lignin to the acrylic resin were done in percentages of 0.25%, 0.5%, 0.75%, 1.0%, 1.25%, and 1.5% (wt%). Seventy specimens were made according to the ADA specification No 12 for transverse strength using three point bending test and Impact strength tes
Background: Hydatidosis is a widespread chronic zoonotic disease caused by helminthic larval stage of tapeworm Echinococcus granulosus. It has a serious medical and public health problem. Recently many substances are used to activate and modulate the immune system of the host in order to control the cyst growth and development.
Materials and Methods: Protoscolices were isolated from human hydatid cysts and treated with four purified concentrations (25, 50, 75, 100μm/ml) of 1-HP plus hydatid cyst fluid as a positive control group for 4, 24, 48 and 72 hrs period of exposure. Then After 72 hours, the protoscolices which were treated with different concentration of 1-HP were inoculated intraperitonially of m
Background:The most principal mechanisms of cardiomyopathies are;high preload and afterload and low myocardial contractility, imbalance of trace elements may cause myocardial metabolic dysfunction and may have a role in aetiology of cardiomyopathy, particulary in IDC. Trace elements are being increasingly recognized as essential mediators of the development and progression of heart diseases.
Methods: Study design Multi case-control study and single center estimation of trace elements concentrations in a number of volunteer settings this study was conducted in the Department of Cardiology, Ibn Albitar Hospital, and in the Physiological Chemistry Department of the College of Medicine, Baghdad University, fr
Background:Aluminum (Al) intoxication was initially reported in patients undergoing hemodialysis and then was linked to Alzheimer's disease. Man usually is exposed to Al containing antacids, vaccines or foods cooked in Al utensils. The assumption of ingesting sour juices as acetic acid or ethanol may affect favorably the degree of Al absorption is justified when taken in conjunction with the above mentioned appetizers.
Materials and methods: Four groups of 10 mature male rats each were used. The drinking water (DW) containing 5mM of Al2(SO4)3 with 1% glacial acetic acid and/or 10% ethanol made available ad-libidum. Weekly body weight and each other day drinking water volume were measured. Brain and p
Background: Hormones have very important role in spermatogenesis and production capacity of testis. Disturbances in their vlevels can be very crucial in dysfunction of testis which results in men infertility. This study carried out to evaluate the hormonal disturbances in men infertility and its correlation with semen parameters and types of infertility.
Patients and Methods: Blood and semen samples were collected from 91 infertile men and 20 healthy and fertile control who attended Al-Kadymiah hospital and some private clinics in Baghdad from January to December 2009.Semen and serum samples were analysed for semen parameter and FSH, LH, Testosterone and prolactin levels.
Results: Fifty one (56%) of in
في التصميم ألطباعي القائم على أساس توجيه رسالة الى المتلقي فان للفكرة دور كبير للتعبير عن مضمون الكتاب بهيئة شكل لان عملية بناء الفكرة التي تصبح فيما بعد موضع التنفيذ يعول عليها كل مزايا التصميم الناجح. لان الفكرة الجيدة تنقل مضمون الكتاب بشكل واضح دون أي تشويش ومن دون ان تكون الفكرة هي مجرد شكلا تزويقيا لا جدوى منه. فالعلاقة جدلية بين الفكرة والشكل والمضمون في التصميم من ناحية أكمال أحداها للأخر سواء اكان ف
... Show Moreتعد الصورة الفنية السمة المميزة للخطاب الشعري ، والحد الفاصل بين لغة الشعر ولغة النثر، وهي من الركائز المهمة التي تُبنى عليها العملية الإبداعية. غير أن كل صورة لا تظهر إلا على أساس من التعبير المجازي الذي يحدث تشويقاً خلال ربط الدلالات بين الدال والمدلول، والحقيقة والخيال. كما إن سر نجاح العمل الفني أن ينطلق من النص نفسه وأدواته الفنية، أي أن جمالية النص تعكس جمالية الشاعر نفسه ، ومقدرته على نقل تجربته وعاطف
... Show Moreإن مشروع مسح قادس (QADIS) وهي مبادرة مقدمة من جامعة بولونا ألما ماتر ستيديروم مع الهيئة العامة للآثار والتراث . الموجودات المقدمة هنا قد تم تحليلها على إطار مشروع منظمة (EDUU) ((تعزيز التراث الثقافي والتعليمي من أجل التماسك الاجتماعي في العراق)). أن الموسوم الأول والثاني والثالث حدثت في شهر تشرين الأول من عام 2016 وشهر كانون الثاني من عام 2017 على التوالي ، وقد تم كتابة التقرير لجميع نشاطات المسح العامة لأول موسمين ، وقد
... Show Moreالحمدُ للهِ الذي يعفو عن السيئات، غافر الزلات، مفرج الشدَات، لا يُضيع أجراً لصابر على بلاءِ، أو منتظر عفواً بعد شدَّة...أما بعد فيتناول هذا البحث واحداً من الموضوعاتِ الشعرية المتميزة التي ابتكرها الأندلسيون في بلادهمِ وهو ما اصطلحنا عليه بـشعرِ العفو عند القدرة, وهو موضوع لم يتناوله كتاب مستقلٌ من قبلِ، بل كان يمَرُّ في الدواوين والكتب مروراً في ظلِّ الأغراض الأخرى، كشعر الاستشفاع والاستعطاف، والتسامح, وق
... Show Moreالقرآن الکریم یضمّ کلمات مفتاحیة، تجتمع في حقول متشابکة، توحّدها کلمة مرکزیة، ضمن نظام مفهومي شامل. الکلمات المرکزیة والمفتاحیة، یؤدی کلٌ دورًا حاسمًا وحقیقیا في تشکیل البنیة المفهومیة للرؤیة القرآنیة.
البحث هذا، یهدف الی کشف هذه الکلمات وفرزها عن المعجم القرآني، والتنبّه الی ما یحکم الحقول الدلالیة من العلاقات المتشابکة، وذلك لوضع اساس رصین لما یأتي من تحلیل اَدبي لاحق، وعلیه قام المقال بما یلي:
... Show MoreThis paper is devoted to investigate the effect of internal curing technique on the properties of self-compacting concrete (SCC). In this study, SCC is produced by using silica fume (SF) as partial replacement by weight of cement with percentage of (5%), sand is partially replaced by volume with saturated fine lightweight aggregate (LWA) which is thermostone chips as internal curing material in three percentages of (5%, 10% and 15%) for SCC, two external curing conditions water and air. The experimental work was divided into three parts: in the first part, the workability tests of fresh SCC were conducted. The second part included conducting compressive strength test and modulus of rupture test at ages of (7, 28 and 90). The third part i
... Show MoreBackground: Sildenafil is a drug that is used to treat erectile dysfunctions, it acts by inhibiting CGMP specific phosphodiesterase type 5, an enzyme that regulates blood flow in the penis. The most common adverse effects of sildenafil are headache, dyspepsia, nasal congestion and impaired vision which includes photophobia and blurred vision. Many dermatological side effects are present like flushing, urticaria, sweating and many others.
Patients and Methods: Fifty six males were included in this study, with ages between 37 – 60 years and a mean age of 50.1 ± 7.1years. The study was conducted from November 2004 till May 2009 in the Department of Dermatology of Al-Kadhymia Teaching Hospital in Baghdad;
Background: Neonatal jaundice (NJ) is a common problem worldwide and frequent in Iraq . Several reports were published on prevalence, distribution, causes and treatment of NJ.This clinical trial was carried out to demonstrate the effect of combinations of Castrol oil, riboflavin and magnesium in mechanical elimination of bilirubin after enhancing hepatic excretion by phototherapy.
Patients & methods: This clinical trial included a total of 61 significantly jaundiced neonates who were admitted to the special care baby unit of Children Welfare Teaching Hospital, medical city complex, Baghdad, Iraq, during the period June 1st to Dec.31st 2007. Phototherapy was applied alone in 30 neonates (group 1) and p
Background: Fenugreek seeds are used as food ingredient in traditional medicines; also aspirin is an incredible chemical with many useful benefits in the medical field. The objective was to study the effect of aspirin and fenugreek on testes of mice.
Method: 20 white male mice weighing (18-23gm) were divided into four groups 5 each. Group 1, represented control, group 2, mice treated with fenugreek seed (100mg/KgB.W), group 3 mice treated with aspirin (10mg/Kg B.W), group 4 mice treated with aspirin and fenugreek seed for 21 days. Body weight and testes weights were recorded. Histopathological examination of testes was carried out.
Results: a significant decrease (P<0.05) in body weight of mice treated w