The porosity of materials is important in many applications, products and processes, such as electrochemical devices (electrodes, separator, active components in batteries), porous thin film, ceramics, soils, construction materials, ..etc. This can be characterized in many different methods, and the most important methods for industrial purposes are the N2 gas adsorption and mercury porosimetry. In the present paper, both of these techniques have been used to characterize some of Iraqi natural raw materials deposits. These are Glass Sand, Standard Sand, Flint Clay and Bentonite. Data from both analyses on the different types of natural raw materials deposits are critically examined and discussed. The results of specific surface are
... Show MoreIndium Antimonide (InSb) thin films were grown onto well cleaned glass substrates at substrate temperatures (473 K) by flash evaporation. X-ray diffraction studies confirm the polycrystalline of the films and the films show preferential orientation along the (111) plane .The particle size increases with the increase of annealing time .The transmission spectra of prepared samples were found to be in the range (400-5000 cm-1 ) from FTIR study . This indicates that the crystallinity is improved in the films deposited at higher annealing time.
During this research accomplish some chemical modifications on the Poly for new modified polymers with Kimaaaúah qualities, physical and unexpected new applications that the first of these chemical modifications that was completed is the introduction of a poly styrene butadiene swash and then this group
This study aims to prepare educational sessions for the strategy (team-pair-solo) in practical volleyball lessons for female students and identifying its effect on learning the accuracy of the spiking skill in volleyball. An experimental design with experimental and control groups was employed on a purposive sample of (30) female students who were to constitute (42.254%) from their community represented by the sophomores at the College of Physical Education and Sports Sciences for Girls / University of Baghdad who are in good standing in the morning study for the academic year (2022-2023), whose total number is (71) students. According to the determinants of the experimental design, participants were divided into two equal groups, a
... Show MoreAs a result of the rising amount of ceramic waste generated by demolition operations and the breaking down of ceramic products during transmission and production processes, the need to get rid of this waste increased. In addition to the importance of preserving natural resources, the trend has begun to utilize these wastes as a partial alternative to aggregates. In this research, it was studied to replace (30%) of the volume of coarse aggregate with crushed ceramic, replacing 10% by weight of cement with local metakaolin and Carbon fibers were added with (1%) by weight of the cementitious material in order to produce pervious concrete in terms of sustainability. Compressive strength, splitting, and density tests were per
... Show MoreIn this research TiO2 nano-powder was prepared by a spray pyrolysis technique and then adds to the TiO2 powder with particle size (0.523 μm) in ratio (0, 5, 10, 15 at %) atomic percentage, and then deposition of the mixture on the stainless steel 316 L substrate in order to use in medical and industrial applications.
Structure properties including x-ray diffraction (XRD) and scanning electron microscope (SEM0, also some of mechanical properties and the effect of thermal annealing in different temperature have been studied. The results show that the particle size of a prepared nano-powder was 50 up to 75 nm from SEM, and the crystal structure of the powders (original and nano powder) was rutile with tetragonal cell. An improvement in
Atheism is one of the most dangerous absurd doctrines that have swept the world in the modern era. Its strength lies in the bodies that stand behind it and adopt its ideologies which are accompanied by the tremendous media momentum of the theses of its supporters based on scientific and non-scientific levels. And since the denial of the existence of the Creator is the main focus and central point which the atheists based their view towards the universe, life and man, this humble research came to discuss the claim of the existence of the world by pure chance, and try to explain this scientifically through the theory of natural selection and survival of the fittest developed by the English biologist Charles Darwin. The resea
... Show MoreBackground: The immunogenetic predisposition
may be considered as an important factor for the
development of Type 1 Diabetes Mellitus (T1DM)
in association with the HLA antigens.
Objective:This study was designed to investigate
the role of HLA-class II antigens in the etiology of
type T1DM and in prediction of this disease in
siblings, and its effect on expression of glutamic
acid decarboxylase autoantibodies (GADA).
methods:Sixty children who were newly diagnosed
type 1 diabetes (diagnosed less than five months)
were selected. Their age ranged from 3-17 years.
Another 50 healthy siblings were available for this
study, their ages range from 3-16 years. Eighty
apparently healthy control subjects,
تضمن البحث تحقيق مخطوط"، سرور الفؤاد بالصافنات الجياد في معرفة الخيل
وأسمائياالشيخ محمد العمري" وكما ظاىر من عنوان المخطوط إنوُ يتناول الخيل، والخيل
موضوع ميم في حياة العربي قبل الاسلام باعتباره يمثل جزءاً من تفاصيل حياتو الملازمة لوُ
واعتماده عمييا ىذا أولاً وثانياً ماتحمموُ الخيول من معاني الفروسية والعنفوان وماتثيره في
الأنسان من حب الأقتناع والمتعة المتحققة من النظر إلييا وحبو لمسبق،
يهدف البحث إلى التعرف على أثر انموذج كوسكروف في التفكير التوليدي لدى طالبات الصف الرابع العلمي في مادة الفيزياء , وذلك بالتحقق من الفرضية الآتية:
لا يوجد فرق ذو دلالة إحصائية عند مستوى (0.05) بين متوسط درجات طالبات المجموعة التجريبية التي درست وفق انموذج كوسكروف ومتوسط درجات طالبات المجموعة الضابطة التي درست وفق الطريقة الاعتيادية في التفكير التوليدي.
استعمل الباحثان التصميم الت
... Show Moreالمستخلص
علم السرد هو فرع من فروع النقد الأدبي الذي يفحص السرد الخيالي، ووفقا للبنيويين مثل غريماس، فإن القصص والسرد، في أشكالها المختلفة تتبع أنماطًا ومن خلال اكتشاف هذه الأنماط، يمكن التوصل إلى فهم أفضل للقصة. إن دراسة الأعمال السردية من حيث الشكل والبنية لها أهمية كبيرة في مجال علم السرد اليوم؛ لذلك حاول المؤلفون في هذه الدراسة دراسة وتحليل القصة القصيرة "قرية الحروف" باستعمال نموذج "غريماس"
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It’s good to study the historical sites because they determine the reason why Abu Jaafar Al-Mansour choose Baghdad the timeless Capital ,So it’s easy for us to reconnect the past and the present regarding to the city, and must understand how its important the geographic site selection, which is determined by ancient rivers, which were the basis on which the city was constructed in the various roles of historical and this is natural because the
Background: Cholera has been recognized as a killer disease since earliest time. The disease is caused by infection of the small intestine by Vibrio cholerae O1 and O1391 which is characterized by severe dehydrating diarrheal condition and is one disease in modern times that is epidemic, endemic and pandemic in nature. Objective: This study was carried out to detect and isolate V. cholerae from patients suffered from watery diarrhea, which may cause severe complications such as dehydration, shock followed by death. Materials and methods: stool specimens were collected from 308 patients with watery diarrhea. These samples were tested with many criteria such as TCBS agar, gram stain, biochemical tests and VITEK-2 system to improve the isolati
... Show MoreAbstract: Word sense disambiguation (WSD) is a significant field in computational linguistics as it is indispensable for many language understanding applications. Automatic processing of documents is made difficult because of the fact that many of the terms it contain ambiguous. Word Sense Disambiguation (WSD) systems try to solve these ambiguities and find the correct meaning. Genetic algorithms can be active to resolve this problem since they have been effectively applied for many optimization problems. In this paper, genetic algorithms proposed to solve the word sense disambiguation problem that can automatically select the intended meaning of a word in context without any additional resource. The proposed algorithm is evaluated on a col
... Show MoreThe isolation and characterization of
This is an abstract of a thesis entitled A contrastive study of Turkish and Arabic consonants . In fact , languages have different numbers of sounds . Speakers of a language find it difficult to learn foreign language sounds whose native language do not have . The thesis is contrastive study that shows similarit ies and differences between Turkish and Arabic consonants . The study sheds light on the difficulties arab students of Turkish face because
... Show MoreIn mammals, the kidneys originate in an embryo from the mesoderm through three excretory organs, namely: Pronephros, Mesonephros, and Metanephros. After the formation of Metanephros is completed, the kidneys begin to form nephrogenesis through mesenchymal cells located at the tip of the ureteric bud, that contribute in the formation of glomerulus and Renal tubules. The stages of glomerulus formation in the embryo of albino mice at the age of 14 to 19 days of gestation were studied. It was obtained after the sacrifice of the expectant mother and the kidneys were excised from the embryos and fixed using Aqueous Bouin's solution, Microscopic slices with a thick
... Show MoreModern manufacturing enterprises are increasingly faced with fierce international competition and fluctuating market conditions. To gain flexibility from a functional manufacturing system and efficiency from mass production, group technology has emerged as an effective compromise between the two. Identification and grouping of parts, that share similar processes into cells, is the basic problem in the design of cellular manufacturing systems. The design of cellular manufacturing systems is a complex, multi- criteria and multi -step process which can have significant implication for the entire organization. The formation of machine cell and part families have a number of constraints such as number of cells, cell size, technological requir
... Show MoreBackground: Speckle tracking echocardiography (STE)-derived mitral annular displacement (MAD) utilizes the speckle tracking technique to measure strain vectors, which provides accurate estimates of left ventricular ejection fraction (LVEF).Objectives: To validate the accuracy of mitral annular displacement (MAD), assessed by Speckle Tracking Echocardiography (STE), as a surrogate for determination of left ventricular systolic function in comparison to 2-Dimensions Simpson method in patients with different heart diseases.Methods : This cross-sectional study included patients who referred to outpatient department of Ibn Albitar Center for Cardiac Surgery, Baghdad, Iraq, between October 2012 and April 2013. STE continuously tracked annular
... Show MoreThe present work shows a theoretical results that have been used the functional Hybrid of three parameters Lee-Yang-Parr (B3LYP) of the quantum mechanical approach for density functional theory with (Spanish Initiative for Electronic Simulations with Thousands of Atoms) SIESTA code. All calculations were carried out employing the used method at the Gaussian 09 package of programs. It was reported the main point for research on dominance of the bandgap of elongated pi-conjugated molecules by using different chemical groups replacing hydrogen atom in the most molecules that used in this work. The side groups creates another factor that controls the value of the band gap. The dihedral angle between the two pheny
... Show MoreThis study was conducted as an attempt to determine the epidemiology of rinderpest in Awassi sheep and Levantine goats in an area endemic to rinderpest. A herd of sheep and goats that were in contact with cows and buffalo that were infected with rinderpest was examined. Naturally, blood serum samples were collected and examined using an agricultural neutralization test prepared from the kidneys of calves. We did not observe any clinical signs in sheep and goats that lived in coexistence with cows and buffaloes infected with rinderpest.
This study demonstrated the absence of antibodies to rinderpest infection in the sera of the sheep and goats that were examined, which indicates the absence of hidden rinder
Rwanga (view) movement is a new Kurdish poetry movement. Some poets and modern storywriters published a manifest in 1970. They have made a group of changes in the content and appearance of Kurdish poetry. They were under the influence of western literature schools such as Surrealism, Dadaism and Existentialism. Likewise, the impact of the new Arabic literature that appeared by the end of 1960s on them was obvious as they were imitating such literatures. Nevertheless, the condition of Kurdistan at that time was in need of a new literature to express that new stage. Sherko Bekas was one of those poets who became the dynamo of the poetic movement in which the rebellion spirit was embodied in the modern way of dealing with culture, rhyme, rh
... Show MoreThe research, which was drawn from his doctoral thesis (People's Policy towards Vietnam 1949-1979), discussed the roots of the connections between the Chinese and Vietnamese communists since the 1920s, the presence of Ho Chi Minh and other Vietnamese communists in China, their influence by the revolutionary struggle of the Chinese Communist Party and their establishment of a group of The Vietnamese Revolutionary Societies and the Indo-Chinese Communist Party until the outbreak of the Vietnamese Revolution and their success in declaring the establishment of the Democratic Republic of Vietnam in 1946. Keywords: Ho Chi Minh, Chinese Communist Party, Indo-Chinese Communist Party, Democratic Republic of Vietnam, Chou En Lai.
A field experiment was conducted at the Grdarasha Research Field station, College of Agricultural Engineering Sciences, Salahaddin University – Erbil using randomized complete block design (RCBD) during the years 2019-2021 to study the effect of five levels 0, 5, 10, 15 and 20 g of dust metals of Erbil steel factory (size 2mm mesh) in combination with compost of solid waste management and sorting of Akre district-Duhok province on growth, yield and chemical composition of Gundelia tournefortii L. The results indicated that powdery metal dust and compost fertilizer significantly increased length, diameter, fresh weight and dry weight of edible portion, and thus escalated the total yield of this plant for the two growing
... Show MoreThis work was conducted to study the association of variations in the VLDLR gene and mRNA expression in the liver and the ovary of local Iraqi hens with some productive and blood traits. The VLDLR gene variations were studied using blood samples of 173 pedigreed hens, 47 weeks old while the expression was studied using tissue samples of the ovary and liver in 30 pedigreed hens, 60 weeks old. Genotypic and allelic frequencies, production traits, and biochemical serum blood were investigated. The results showed that the genotypic and allelic frequencies of the VLDLR in 173 chickens did not agree with Hardy-Weinberg equilibrium (P<0.0307). The genotypic frequencies were 94.7 and 5.3% for both GG and GT genotypes respectively, whi
... Show MoreThere is an elevated need for novel antimicrobial preservatives in the food industry, and hydrolysis of waste products from the same sector has for decades been viewed as a potential source of these. In the current study we have purified bovine whey protein using size-exclusion chromatography (SEC), and hydrolyzed it by trypsin, pepsin, alcalase, savinase, and neutrase at different times 30, 60, 120, 240, and 300 min. The highest active time hydrolysate was subsequently fractionated by SEC, monitored for antibacterial and antioxidant activities, and characterized using UHPLC-MS/MS. Alcalase and savinase displayed higher degree of hydrolysis, higher antibacterial activity in their hydrolysates at 60 and 30 min, respectively compar
... Show MoreSix inbred lines (Syn-1, MGW-3, S-165, Syn-22, Zm-9, M-17) of maize (Zea mays L.) were used in this study using half diallel cross and developed 15 F1 single crosses . The single crosses were crossed a ccording to Rawllings and Cookerham method and developed 45 double crosses . Seeds of double crosses were cultivated to study combining ability and gene action of the parent. The results showed highly sinificant differences for mean square of double crosses and for the some traits . The double crosses (Syn-1* ZM-9)(MGW-3 * M-17) , (Syn-1 * ZM-9)(S-165 * Syn-22) , (MGW-3 *M17)(S-165 *Syn-22) , (Syn-1 *S-165)(MGW-3*Syn-22) (Syn-1 *S-165)(ZM-9* M17) and (MGW-3 * Syn-22)(ZM-9 *M-17) revealed highest spec
... Show MoreThis experiment was carried out at the plant garden -Science Dep. of Sciences College of Basic Education, Almustansriyah Univ. the objective was to study the effect of Kinetin and Salicylic acid at two growth stages, using split–split plot design with three replicates .Irrigative treatment (every 3,6,9 weeks) .and main plots , plant regulators (control, Kinetin spray and Salicylic acid spray ) as sub plots, while,growth regulator spray stages(tillring initiation, flowers budinitiation sub-sub plots The results were revealed, The Plants which irrigated every 3 and 6 weeks look long
... Show MoreTow field experiments were conducted during the seasons of 2020/2021 and 2021/2022 at the experimental farm Etay El-Baroud research station to investigate the effect of foliar application with gibberellic acid (GA3) at 50 and 100 ppm and the chitosan (CS) at of 100 and 200 ppm, in addition, to control for each to Giza Red onion. The results showed significant and positive effects of the examined concentrations of GA3 or CS on all the studied characters except leaves number and shape index, in both seasons. Concerning the interaction effect, all of the studied characters were enhanced significantly in all treatment combinations between GA3 and CS levels. The treatments of GA3 (50 ppm) with CS (200
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