Magnetic Abrasive Finishing (MAF) is an advanced finishing method, which improves the quality of surfaces and performance of the products. The finishing technology for flat surfaces by MAF method is very economical in manufacturing fields an electromagnetic inductor was designed and manufactured for flat surface finishing formed in vertical milling machine. Magnetic abrasive powder was also produced under controlled condition. There are various parameters, such as the coil current, working gap, the volume of powder portion and feed rate, that are known to have a large impact on surface quality. This paper describes how Taguchi design of experiments is applied to find out important parameters influencing the surface quality generated during
... Show MoreBackground: Recent advancements in molecular techniques have identified over 450 genotypes of Human Papillomavirus (HPV), classified into low- and high-oncogenic risk categories. The rise in high-oncogenic risk HPV genotypes has been linked to various cancers, including those affecting the oral, oropharyngeal, and nasopharyngeal regions in both pediatric and adult populations. Methods: In this study, a cohort of 102 tonsillar tissue samples was included. This comprised 40 specimens from pediatric patients aged 4 to 9 years with nasopharyngeal adenoid hypertrophies, and 42 specimens from pediatric patients aged 5 to 12 years with palatine tonsillar hypertrophies. Among the 82 tonsillar tissue samples analyzed, 38 were from pediatric patients
... Show MoreThe ligand Schiff base [(E)-3-(2-hydroxy-5-methylbenzylideneamino)- 1- phenyl-1H-pyrazol-5(4H) –one] with some metals ion as Mn(II); Co(II); Ni(II); Cu(II); Cd(II) and Hg(II) complexes have been preparation and characterized on the basic of mass spectrum for L, elemental analyses, FTIR, electronic spectral, magnetic susceptibility, molar conductivity measurement and functions thermodynamic data study (∆H°, ∆S° and ∆G°). Results of conductivity indicated that all complexes were non electrolytes. Spectroscopy and other analytical studies reveal distorted octahedral geometry for all complexes. The antibacterial activity of the ligand and preparers metal complexes was also studied against gram and negative bacteria.
The first known use of the term conspiracy theory dated back to the nineteenth century. It is defined as a theory that explains an event or set of circumstances as the result of a secret plot by usually powerful conspirators. It is commonly used, but by no means limited to, extreme political groups. Since the emergence of COVID-19 as a global pandemic in December 2019, the conspiracy theory was present at all stages of the pandemic.
Background: Management of immature permanent teeth with necrotic pulp is considered challenging to the clinician. Regeneration of pulp tissue is a relatively new approach for management of these teeth that allow continuation of root maturation rather than formation of just a calcific barrier as in apexification. Method: 9 years-old girl with traumatized upper left central incisor. The clinical and radiographical examinations revealed uncomplicated crown fracture, tenderness to percussion, absence of response to cold vitality test. Diagnostic X-ray revealed open apex with periapical radiolucency. Revascularization was suggested to treat the tooth, starting with irrigation of canal with 5% NaOCl + 3% H2O2, followed by 2 weeks of triple antibi
... Show MoreThis study was aimed to determine the mutations and single nucleotide polymorphisms (SNPs) in exon 3 and 7 of estrogen receptor beta (ESR2) gene in women with breast cancer from Iraq. Different samples (blood, fresh tissue with blood from same patient, and formalin fixed paraffin embedded, FFPE) were collected from women with breast cancer. Molecular analysis exon 3 and 7 in ESR2 has been studied by using PCR. It was found exon 3 and 7 in ESR2 were revealed as a single band with size 151 and 157 bp, respectively. There was no SNP in exon 3 has been identified. While three novel polymorphisms (ACT, AGG and GCA) were detected in exon 7, the type of those polymorphisms deletion for ACT and AGG while substitution polymorphism for GCA. From this
... Show MoreA nanocrystalline thin films of PbS with different thickness (400, 600)nm have been prepared successfully by chemical bath deposition technique on glass and Si substrates. The structure and morphology of these films were studied by X-ray diffraction and atomic force microscope. It shows that the structure is polycrystalline and the average crystallite size has been measured. The electrical properties of these films have been studied, it was observed that D.C conductivity at room temperature increases with the increase of thickness, From Hall measurements the conductivity for all samples of PbS films is p-type. Carrier's concentration, mobility and drift velocity increases with increasing of thickness. Also p-PbS/n-Si heterojunction has been
... Show MoreThe study aimed to test the hypothesis of Caldor to estimate the relationship between industrial production and GDP growth in Iraq using with Integration Framework and to determine the causal relationship in the short and long term using the error correction vector model for the period 1990-2016. the results showed a long-term equilibrium relationship between GDP and industrial output, while Ganger causality tests showed a causal relationship in the long run of GDP to output Subliminal thus illustrated the extent of the recession suffered by the industrial sector, which is supposed to be the driving force of the economy and the development and expansion of the productive base of the industry, so this study recommends attent
... Show MoreThe aim of this study is to design a proposed model for a document to insure the mistakes of the medical profession in estimating the compensation for medical errors. The medical profession is an honest profession aimed primarily at serving human and human beings. In this case, the doctor may be subject to error and error , And the research has adopted the descriptive approach and the research reached several conclusions, the most prominent of which is no one to bear the responsibility of medical error, although the responsibility shared and the doctor contributes to them, doctors do not deal with patients according to their educational level and cultural and there are some doctors do not inform patients The absence of a document to insu
... Show Moreلقد دخل الذكاء الاصطناعي في كثير من جوانب حياتنا، والتصميم ليس استثناءً بأي حال من الأحوال. وفي العامين الماضيين، شهدنا تطوراً سريعاً في هذا القطاع. ظهرت كثير من الحلول الجديدة، مما أدى إلى إغراق سوق البرمجيات وإتاحة الفرص للمصممين لتغيير طريقة إبداعهم وتعاونهم. أذ نقدم في هذه المقالة نظرة عامة على الاستخدام الحالي للذكاء الاصطناعي في التصميم الجرافيكي، ونناقش الدور الذي قد يلعبه في
... Show MoreThis paper is concerned with preliminary test double stage shrinkage estimators to estimate the variance (s2) of normal distribution when a prior estimate of the actual value (s2) is a available when the mean is unknown , using specifying shrinkage weight factors y(×) in addition to pre-test region (R).
Expressions for the Bias, Mean squared error [MSE (×)], Relative Efficiency [R.EFF (×)], Expected sample size [E(n/s2)] and percentage of overall sample saved of proposed estimator were derived. Numerical results (using MathCAD program) and conclusions are drawn about selection of different constants including in the me
... Show MoreAdsorbents based on agricultural biomass have been subjected to several investigations in recent years owing to their low cost and promising adsorption capabilities. This paper aimed to demonstrate the efficiency of utilizing date pits modified with hydrogen peroxide as agricultural biomass in extracting heavy metals from polluted water in a column continuous flow system. The resulting modified adsorbent (MDP) has a surface area of 278.18 m2/g. The derived adsorbent was investigated under changed operating parameters including the flow rate (4-12) ml/min, pH (4-10), initial metal ion concentration (30-60) mg/L, and temperature (20-50) °C to determine their effect on heavy metals adsorption efficiency. The response surf
... Show Moreإن ﻣن اﺑرز اﻟظواﻫر ﻓﻲ اﻟﻣﻌرﻓﺔ اﻻﻧﺳﺎﻧﻳﺔ ﻫو اﻟﺗطور اﻟﺳرﻳﻊ ﻓﻲ اﻟﺣﻘﻠﻳن اﻟﻧظري واﻟﻌﻣﻠﻲ وﺗﺗﺎﺑﻊ اﻻﻧﺟﺎزات اﻟﻌﻠﻣﻳﺔ اﻻﺑداﻋﻳﺔ ﻓﻲ ﺷﺗﻰ اﻟﻣﻳﺎدﻳن ﻣﻣﺎ اﻧﻌﻛس ذﻟك ﻋﻠﻰ اﻟﺣﻳﺎة اﻻﺟﺗﻣﺎﻋﻳﺔ واﻟﺛﻘﺎﻓﻳﺔ واﻟﺑﻧﻳﺔ اﻟﻌﻘﻠﻳﺔ ﻟﻼﻧﺳﺎن أن التغيير السريع الذي يشهده العصر الحاضر ما هو إلا مقدمة لتطوّر أسرع وأشمل، ينتظر عالم المستقبل .
Sharif Mohieddin Haider worked on composing of musical compositions for the Oud different from the traditional forms known as (Peşrev, Sama'i, Longa… etc.), but they are not clear in building their musical form. This study tackles this issue by revealing the structure of the building of the musical form of these Musical compositions.
The importance of this research lies in that it provides an academic scientific study on the important subject of Musical composition forms and the way of constructing them. It helps players and students in the study of Arab music, if they want to write according to their musical form.
This research dealt with two topics in its theoretical framewo
... Show Moreتمثل الاشباح – بوصفها ظاهرةً ثقافية متوارثة عبر الاجيال- عنصراً اساسا ابدعه الخيال البشري وتناوله في سرديات الادب والسينما، كون الاشباح تشغل حيزاً كبيرا في تراث الامم. فقد ظهرت افلام الرعب وعلى وجه الخصوص افلام الاشباح وهي من الانواع الفيلمية البارزة التي استمدت موضوعاتها من اساطير وارث الحضارات القديمة، تناولت فيها احداثاً يكتنفها الغموض في كل مفاصلها من مكان وزمان لاسيما وجود شخصيات خارقة للطبيعة تنتم
... Show Moreتبحث الدراسة في جدلية العلاقة بين النص الروائي والْفِيلم السينمائي للفيل الأزرق من خلال رؤية نقدية، بحيث تم استخدام المنهج التحليلي المُقارن للوقوف على أهم النقاط الجدلية والعمل على تحليلها ونقدها. وقد توصلت الدراسة إلى عدة نتائج أبرزها أن الفُروقات الجدلية التي تمت قراءتها وتدوينها هي أن الْفِيلم السينمائي ركز بتفاصيلهُ على المشاعر والعواطف أما ما يمكننا قراءته في النص الروائي هو أن السرد والوصف الدقيق
... Show MoreThe research (The Aesthetics of Lumia Art in Contemporary Textile Arts: An Analytical Study) included four chapters, the first to explain the research problem summarized by the question: Does the art of Lumia achieve aesthetic values in contemporary textile arts?, and aims to: Identify the aesthetics of Lumia art and its applied uses in contemporary textile arts, within the time period (2013-2022). The third chapter included: research procedures and sample analysis (4) models according to the descriptive analytical approach, and the fourth chapter dealt with: results, conclusions and recommendations as well as sources.
ابو الفرج رونی از استادان شعر فارسی در دوره دوم غزنوی است.او در میان شاعران ابو الفرج خیلی زودتر از دیگر شاعران عصر خود متوجه نو کردن سبک سخن گردید چنان که میان روش او وروش معاصرانش از قبیل عثمان و مسعود سعد و معزی و نظایر آنان اختلافات فراوان وجود دارد. او طرز شعر دورهء اول غزنوی را که باید آن را سبک تکامل یافتهء دوره سامانی شمرد، به دور افکند ، وطریقه ای جدید پدید آورد. پژ
... Show MoreThe phenomenon of Masculine and feminine is one of the important grammatical studies because of their influence on the sentence structure, words come either masculine and feminine type when using one of them in place of the other , this displacement might cause distribution in the sentence itself because,
The art of batik is one of the ancient arts that has a long history in East Asian countries, especially in Indonesia, where it was considered a traditional craft with which many Indonesian tribes lived. This art began to move to other continents and develops and progresses due to the artist’s connection to the surrounding technological and intellectual development, as art became more outgoing and liberated, it helped the artist to create and innovate in his designs. In this research, he focuses on modern performance methods through which print paintings can be produced through design elements, especially calligraphy, to create aesthetic and creative effects in the productive work. The current research aims to identify the various perfo
... Show MoreClass consciousness represents its highest stage in the contemporary Marxist thought of Rosa Luxemburg and Antonio Gramsci, not just a reflection of reality, but rather a dialectical form through the reflection of consciousness on reality and its reproduction. The superiority over the infrastructure (historical materialism) promised the revolutionary class consciousness to be achieved spontaneously, and the seeds of a breakthrough are mass strikes, denying the role of the party to organize this awareness, limiting its role to the interconnection between classes, emphasizing the role of socialist democracy as a conscious vanguard for organizing spontaneity, struggle, and developing awareness during the revolutionary process and the leader
... Show Moreيستهدف البحث الحالي التعرف الى:
- اليقظة الاخلاقية لدى (طلبة الجامعة) أفراد عينة البحث الحالي.
- أي القيم الاخلاقية الاكثر شيوعاً وفق رأي (طلبة الجامعة) افراد عينة البحث الحالي.
- دلالة الفروق الاحصائية في اليقظة الاخلاقية لدى (طلبة الجامعة) افراد عينة البحث الحالي على وفق متغيرات الجنس (الذكور والإناث)، والتخصص (العلمي والإنساني)، والمرحلة الدراسية
(الاولى، والثانية، والثالثة والرابعة
... Show MoreThe research was conducted in the Southern Green Belt Project within the center district of the holy city of Karbala to evaluate its environmental impact and efficiency in reducing air pollutants emitted from the industrial area adjacent to the study area. The pollution attenuation factor (Af ) was used to measure the effects of the green belt on impeding air pollutants. Measurements were taken every season from winter 2023 to Autumn 2024. The results showed that the best impedance of the green belt is when the wind speed increases in the Spring, as 7 out of 12 pollutants were impeded, and its efficiency decreased as the wind speed decreased. In general, The green belt demonstrated weak performance in impeding pollutants, As no significa
... Show MoreThe present work aims to fabricate n-i-p forward perovskite solar cell (PSC) withئ structure (FTO/ compact TiO2/ compact TiO2/ MAPbI3 Perovskite/ hole transport layer/ Au). P3HT, CuI and Spiro-OMeTAD were used as hole transport layers. A nano film of 25 nm gold layer was deposited once between the electron transport layer and the perovskite layer, then between the hole transport layer and the perovskite layer. The performance of the forward-perovskite solar cell was studied. Also, the role of each electron transport layer and the hole transport layer in the perovskite solar cell was presented. The structural, morphological and electrical properties were studied with X-ray diffractometer, field emission s
... Show MoreAeromonas salmonicida is a fish pathogen and recognized to cause a variety of diseases in humans. There are a few information about A.salmonicida in Iraq and there is no any previous molecular study on it. During the period of December 2017 to May 2018; Sixteen isolates of the A. salmonicida were isolated and identified from 300 common carp (Cyprinus carpio) fishes stomach in aquarium of Erbil city/ Iraq by using manual, automated Vitek 2 compact system, and confirmed by PCR using gene TonB-dependent siderophore (364bp). Antimicrobial susceptibility was determined by disk diffusion method and the results found that all isolates 100% susceptible to imipenem, 100% resistant to nalidixic acid and variable resistan
... Show MoreBackground: The temporal fascia has not been studied properly yet.
Background: Alveolar ridge expansion is proposed when the alveolar crest thickness is ≤5 mm. The screw expansion technique has been utilized for many years to expand narrow alveolar ridges. Recently, the osseodensification technique has been suggested as a reliable technique to expand narrow alveolar ridges with effective width gain and as little surgical operating time as possible. The current study aimed to compare osseodensification and screw expansion in terms of clinical width gain and operating time. Materials and methods: Forty implant osteotomies were performed in deficient horizontal alveolar ridges (3–5 mm). A total of 19 patients aged 21–59 years were randomized into two groups: the screw expansion group, which invo
... Show More