This paper propose the semi - analytic technique using two point osculatory interpolation to construct polynomial solution for solving some well-known classes of Lane-Emden type equations which are linear ordinary differential equations, and disusse the behavior of the solution in the neighborhood of the singular points along with its numerical approximation. Many examples are presented to demonstrate the applicability and efficiency of the methods. Finally , we discuss behavior of the solution in the neighborhood of the singularity point which appears to perform satisfactorily for singular problems.

Array antennas have an interesting role in the radio astronomy field. The array antennas allow astronomers to obtain high-resolution signals with high sensitivity to weak signals. This paper estimates the meteors' positions entering the Earth's atmosphere and develops a simulation for array antenna radar to analyze the meteor's echoes. The GNU radio software was used to process the echoes, which is a free open-source software development toolkit that provides signal processing blocks to implement in radio projects. Then, the simulation determines the azimuth and elevation of the meteors. An improved Multiple Signal Classification (MUSIC) algorithm has been suggested to analyze these echoes. The detected power of each meteor echo has a Do

In this work, we consider a modification of the Lotka-Volterra food chain model of three species, each of them is growing logistically. We found that the model has eight equilibrium points, four of them always exist, while the rest exist under certain conditions. In terms of stability, we found that the system has five unstable equilibrium points, while the rest points are locally asymptotically stable under certain satisfying conditions. Finally, we provide an example to support the theoretical results.

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Faced with the increasing opening of the education and training sector on the digital world, the actors of this sector are called to develop alongside the disciplinary and pedagogical skills other strategic and technological skills that allow to offer the adequate conditions to manage their establishments.
Today, the pedagogical director is called to master an important set of technical and technological tools and this for two complementary reasons, the first is the knowledge of educational and pedagogical and the second is innovation in managerial practices
Our intervention is part of a comparative approach in which we will verify the degree of use of technological tools by our population of directors (123) private and public
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Four molecular imprinted polymer (MIP) membranes for Mebeverine.HCl (MBV.HCl) were prepared based on PVC matrix. The imprinted polymers were prepared by polymerization of 2-acrylamido-2-methyl-1-propane sulphonic acid (AMPS) as monomer, pentaerythritoltriacrylate (PETRA) as a cross linker ,benzoyl peroxide (BPO) as an initiator and mebeverine as a template. Four different types of plasticizers of different viscosities were used and the electrodes were fully characterized in terms of plasticizer type, response time, lifetime, pH and detection limit.
The MBV-MIP electrodes exhibited Nernstian response in concentration range from 1.0×10-6 to1.0×10-1 M with slopes of 13.98, 19.60, -20.43 and 19.01 mV/ decade. The detection limit and qua

Data hiding (Steganography) is a method used for data security purpose and to protect the data during its transmission. Steganography is used to hide the communication between two parties by embedding a secret message inside another cover (audio, text, image or video). In this paper a new text Steganography method is proposed that based on a parser and the ASCII of non-printed characters to hide the secret information in the English cover text after coding the secret message and compression it using modified Run Length Encoding method (RLE). The proposed method achieved a high capacity ratio for Steganography (five times more than the cover text length) when compared with other methods, and provides a 1.0 transparency by depending on som

Plants commonly used in traditional medicine are assumed to be safe. This safety is based on their long usage in the treatment of diseases according to knowledge accumulated over centuries. One such plants is Aloe vera which has been used medicinally for centuries. Recent widespread importance of commercial Aloe vera has encouraged scientists to scientifically assess these products since it contains the anthraquinones which associated with considerable risks. In present study oral administration of 20 μl of Aloe vera extract (experimental group) (G) was given for 21 days to immature male Swiss Webster mice at weaning period. While the control groups (C) were given by the same dose and rout of administration with normal saline only. Afte

Pre-eclampsia complicates 2-8% of all pregnancies and it is one of the leading causes of maternal mortality and pre-term delivery in the world. Unfortunately, there is scarcity of documents discussing the circulating level of several essential trace elements in Pre-eclampsia patients in Baghdad especially in the last trimester of the pregnancy. The present study was designed to quantitative evaluation the whole blood concentration of two trace elements, copper (Cu), and iron(Fe), in pre-eclamptic women in the third trimester of pregnancy. The study was conducted on 18 Pre-eclamptic pregnant women as patients group with clinical detected high blood pressure ≥140/90 mmHg and 13 normotensive pregnant women as control group from Al-Alwiya

The tested isolate of Rhizobium leguminosarum bv. viciae was isolated from root nodules of vicia faba plant from Baghdad ,the isolated bacteria was examined for bioemulsifier production when growing in mineral salt medium that containing 1% sunflower oil as sole carbon source . Rhizobium isolate was able to produce bioemulsifier with initial emulsification index E24% was 38%. Many of physical and nutritional cultural conditions for optimum emulsifier production was examined including : pH , temperature ,incubation period ,carbon and nitrogen source. The maximum bioemulsifier production form Rhizobium isolate was 64.5% when bacteria growing in mineral salt medium with pH 9 ,incubated at temperature 30 ºC , incubation period was 10 days ,

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التقطت هذه الدراسة فرصة مناسبة ونادرة لتثبت فرضيتها؛ وذلك بالتزامن مع فرض منع تام لحركة المرور في مدينة البصرة في آذار 2020 بوصفه تدبيرا احترازياً للوقاية من جائحة كورونا التي تفشت في عموم البلاد مؤخراً. وعليه،  أجريت قياسات لضوضاء المرور وللجرعة الضوضائية خلال المدة المشار إليها ومقارنة النتائج مع دراسة مرجعية سابقة نفذت في المنطقة نفسها في العام 2018. جرى استخدام معدات وطريقة القياس نفسها وانتخبت نقاط الق

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Human beings expect and anticipate the unknown, including wishes, ambition, and the future. At times, the future is imagined as bright and hopeful. At other times, the future is expected to be gloomy and ominous. Therefore, human beings deal with the future with fear and skepticism. These fears are justified given the circumstances in the present, including human conduct in general, the conditions of wars, and environmental changes.

Since literature recalls the past and tackles the issues of the present, it also expects what will happen in the future by visioning what the future would be. The visions presented in literature motivate the reader to think of other possibilities for the future by amending the present. Usually the futu

      يهدف البحث الى معرفة طبيعة التوزيع السكاني في محافظة واسط، والكشف عن التباين الزماني والمكاني لذلك التوزيع في المدة من (1997 – 2020)، ويتجه البحث الى بيان مناطق التركز والتشتت السكاني بنظرة شمولية بهدف تفسير خصائصها وفقاً لمجموعة من المقاييس والمؤشرات الاحصائية المعتمدة، اذ ان مثل هكذا دراسات تساهم في تحديد نوع ومقدار الخدمات المقدمة للسكان ومدى تلبيتها لحاجات السكان في المنطقة الواحدة. واظه

تهدف الدراسة الحالية إلى استعمال نظم المعلومات الجغرافية والخرائط الطبوغرافية والجيولوجية في عملية الاشتقاق والتمثيل الخرائطي لمؤشرات النشاط التكتوني لأحواض وديان جنوبي جبل كيره والتي تتمثل بمؤشرات طول المجرى ودرجة انحداره (SL) ومؤشر نسبة عرض أرضية الوادي الى ارتفاع الوادي(V_F) ومؤشر عامل التماثل الطبوغرافي (T) ومؤشر عامل عدم التماثل (AF) ومؤشر تعرج مقدمة الجبل (S_mf) ومؤشر شكل الحوض (B_s) واخيراً م

Twenty nine core samples were taken from Ratawi 7 Oil well according to the presence of oil in formation and availability of core samples. This well is located in the province of Basra/southern Iraq. The samples were collected from Yamama Formation. The core samples are taken from the well at different depths, ranging between (3663m-3676m). The range of Vp for these core samples is (668-4017 m/sec) and its average is (1779 m/sec), While the range of Vs is (291-1854 m/sec) and its average is (796 m/sec). In the current study the ultrasonic method is conducted to measure Vp, Vs as well as some petrophysical properties for core samples and some elastic moduli such as (Young's modulus, Bulk modulus, Shear modulus, Poisson's ratio and Lame's

Out of 1279 stool sample only 245 were found to be infected with E.histolytica with total percentage 19% . Diagnostic study for E.histolytica by using techlab Eliza test showed that the non-pathogen E.dispar was significantly higher (78.9%) than E.histolytica (22%).We test the effect of the attenuated E. histolytica by gamma Radiation on the mortality rate in laboratory animals infected with E. histolytica by using increasing doses of radation (5,10,15,20and 25) Rad., the results showed that the percentage of mortality decrease when increase the dose of attenuated E.histolytica cyst in comparison with positive control group (non – attenuated group) it reached (100% ,66.7%, 33.3% 0% and 0%)respectively. Also we found that gamma radiatio

Simple and sensitive batch and flow injection methods (normal and reverse flow injection analysis (nFIA and rFIA)) for spectrophotometric determination of vancomycin hydrochloride (VHC) in pharmaceutical preparations were proposed and optimized. Both methods are based on the oxidative - coupling reaction between vancomycin hydrochloride and 2,4-Dinitrophenylhydrazine (DNPH) in the presence of sodium periodate in alkaline medium to form a yellow water-soluble product that is stable and has a maximum absorption at 461 nm. Beer’s law was obeyed over the range of 1- 40, 0.5-120 and 0.5-150 μg.mL-1; the limits of detection were 0.537, 0.0823 and 0.233 μg.mL-1 for batch, normal and reverse flow injection methods respectively. The sampling

               لما رأينا عدم اشتمال الأقسام الخمسة للإشاريات التداولية ــ عند لفنسون ــ على ما يشير الى المعنى من تعابيرها عمدْنا الى عقد هذه الدراسة لتكون قسمًا سادسًا ومكمّلًا لتلك الأقسام، فأسميناه بـ (إشاريات المعنى)، يتناول هذا القسم دراسة التعابير الإشارية التي تشير الى المعاني، وتحدد موقف المتكلم تجاه تلك المعاني، وبعد وضع ضوابط وحدود هذا القسم الجديد اعتنيتُ بدراسته

تضمن البحث مفهوم الاستثمار والمشاريع الاستثمارية كونها الجزء الرئيسي في بناء الخريطة الاستثمارية لمحافظة بغداد وبيان العوامل المؤثرة عليها وتوضيح محددات ومعايير الاستثمار التي تؤثر في اقامة المشاريع الاستثمارية والاسباب التي تقف وراء هذا التباين وقد تناول الفصل ايضاح للعوامل الجغرافية الطبيعية والبشرية المؤثرة على الاستثمار بشكل عام والمشاريع الاستثمارية بشكل خاص اذ تتبلور مجموعة من العوامل المؤثرة

The Early Cenomanian Ahmadi carbonates succession in selected oil-wells in south Iraqi oil fields have undergone; into sequence stratigraphic analysis as new reservoir stratigraphy optimization understanding. The sequence stratigraphy context: has applied on the mentioned carbonate reservoir in selected oil-wells from West-Qurna and Majnoon oil fields, with respect to Arabian-plate (AP) chronosequence stratigraphy and chrono-markers setting.

A meso-genetic buildup has infra-structured the studied Formation based-on; smallest-set of the genetically-related high-frequency lithofacies-cycle and cycles-set modeling. A genetic sequence (meso-sequence one MS1) is described as a well-encountered buildup between the (MFS-K120 of lower Ah

لا شك أن تحليل عناصر الاستدامة في المدن العربية القديمة من بين الجوانب المهمة التي يهدف لها المتخصصون في التخطيط الحضري وجغرافية المدن لما لها من أهمية في استنباط هذه العناصر وإمكانية استخدامها بصيغ عمرانية حديثة ، ويما يمكن من إعادة النظر في توزيع استعمالات الأرض وتحقيق مردود اقتصادي سواء من خلال اختصار وحدة المساحة وتحقيق انسيابية حركة كفوءة أو من خلال استخدم مواد البناء المحلية والاعتماد على المعالجات

لقد تنوعت وتعددت مشاكل التلوث البيئي ومن بينها مشكلة المخلفات الصلبة التي عدت واحدة من اهم الموضوعات فأصبحت عملية جمع المخلفات الصلبة ونقلها ومعالجتها من اهم المشاكل التي تعاني منها المجتمعات الحضرية لما تسببه من مشاكل بيئية واجتماعية وصحية خطيرة، لذا جاءت هذا البحث ليسلط الضوء على هذه المشكلة. وقد بين البحث التنوع الكبير في المخلفات البلدية ومنها المنزلية والصناعية والزراعية والتشييد والمخلفات الخطرة،

    Clustering is an unsupervised learning method that classified data according to similarity probabilities. DBScan as a high-quality algorithm has been introduced for clustering spatial data due to its ability to remove noise (outlier) and constructing arbitrarily shapes. However, it has a problem in determining a suitable value of Eps parameter. This paper proposes a new clustering method, termed as DBScanBAT, that it optimizes DBScan algorithm by BAT algorithm. The proposed method automatically sets the DBScan parameters (Eps) and finds the optimal value for it. The results of the proposed DBScanBAT automatically generates near original number of clusters better than DBScanPSO and original DBScan. Furthermore, the proposed method

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