We discussed the proper preparation, directing, and implementation of physical education lessons, and clarification of the duties that fall upon the physical education teacher in addition to his physical and skill duties, which is the duty of the physical education lesson. The problem of the research lies in the fact that interactive harmonic exercises are not implemented accurately by physical education teachers because they require great experience, exceptional efforts, and accuracy in performance. The research aims to identify the level of some physical and motor abilities and intelligence among students aged (9-10) years, and to know the effect of some harmonic exercises. Interactivity at the level of some physical and motor abilitie

The development taking place in various sports in performance, which was and still takes a large part by focusing on the specialized level of the players, whether in training or competition in all sports, including handball. In the competition (the match) by measuring the hormone beta-endorphin as well as. To identify the changes that occur in some biochemical variables as a result of the high effort in the competition (the match) by measuring lactic acid and the hormone aldosterone). The researcher used the descriptive method, the pre and post test of one group Due to the nature of the research, the research community was represented by Al-Shorta Sports players and Al-Jaish club players in handball, as they numbered (24) players from the t

This study explores the preparation, structural, and spectroscopic characterization of activated carbon derived from date pits using calcium chloride as an activating agent. Date pits, an abundant agricultural by-product, were processed into activated carbon through chemical activation with varying ratios of calcium chloride. The resulting activated carbon samples were thoroughly analyzed using X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Fourier-transform Infrared Spectroscopy (FT-IR), and Energy Dispersive X-ray Spectroscopy (EDX). XRD analysis confirmed the presence of crystalline and amorphous carbon phases, with diffraction peaks corresponding to the 101, 110, and 20 planes, indicating successful ca

The integration of the Internet of Things (IoT) in healthcare has transformed the monitoring of physiological parameters, significantly enhancing the capabilities of medical diagnostics and patient care. This study explores the use of advanced cryptographic techniques to secure IoT healthcare systems, particularly through block chain (BC) technology. Moreover, this study evaluates the effectiveness of two cryptographic key generators—bee swarm key generator and snake key generator—in enhancing data security within a BC-based framework for remote patient monitoring. Our study conducts a series of NIST randomness tests to compare the performance of these key generators in terms of randomness, resilience to cryptographic attacks and com

Patients infected with the COVID-19 virus develop severe pneumonia, which typically results in death. Radiological data show that the disease involves interstitial lung involvement, lung opacities, bilateral ground-glass opacities, and patchy opacities. This study aimed to improve COVID-19 diagnosis via radiological chest X-ray (CXR) image analysis, making a substantial contribution to the development of a mobile application that efficiently identifies COVID-19, saving medical professionals time and resources. It also allows for timely preventative interventions by using more than 18000 CXR lung images and the MobileNetV2 convolutional neural network (CNN) architecture. The MobileNetV2 deep-learning model performances were evaluated usin

In this work, manganese and niobium were added to high-chromium white cast iron, from which drilling and grinding tools were made. Two melts with different proportions of manganese and niobium (manganese 2.75% and niobium 0.49%, manganese 3.5% and niobium 1.1%) were used. High-chromium white cast iron is considered one of the most important alloys in heavy-duty applications, and its properties are affected by the added alloying elements and heat treatment. Niobium can increase corrosion resistance and hardness, form carbides, enhance thermal conductivity and improve response to heat treatment. As for manganese, it can increase impact toughness, remove oxygen from iron oxide and reduce flexibility. The heat treatment was carried out in ac

Earth–air heat exchangers (EAHE) hold great promise for reducing typical air conditioning systems’ energy consumption whilst preserving high indoor comfort. The present analyses a 3D model using COMSOL Multiphysics software for a geothermal heat exchanger to examine the thermal behavior along the piping system. The experimental findings of the real EAHE in Baghdad City during January and June are transferred into the nonisothermal pipe flow interface for modeling temperature, velocity and pressure distributions along the piping system. The temperature variation of subsurface soil and the radial temperature distribution around the pipe are modeled into the heat transfer interface.  The magnitude of heat flux is also computed in diffe

على مدى العقود القليلة الماضية، أدى ارتفاع الطلب العالمي على الطاقة إلى نشوء نمو هائل في قطاع الطاقة، وما ترتب على ذلك من عواقب وخيمة على البيئة. ونتيجة لذلك، بدأ الكوكب بأكمله في التحول إلى توليد الطاقة الخضراء، والتي ليس لها أي آثار سلبية على العالم الطبيعي. تتمتع الكهرباء الشمسية بأعلى كفاءة مقارنة بأشكال الطاقة المتجددة الأخرى. تتناول هذه الدراسة أداء الشبكة الشهرية لمنشأة طاقة شمسية افتراضية بقدرة 100 م

The sudden thermal warming phenomenon in the stratosphere (SSW) occurred during wintertime, an important thing affecting communication throughout the ionosphere region. This study looks at how the SSW through the stratosphere temperature peak affects the three ionosphere parameters: the total electron content (TEC), the critical frequency foE, and the foF2 of two layers, E and F2. It uses the IRI-20 model over Basrah city, which is in the south of Iraq and lies at 30.4°N 47.7°E. This study spans 2014 and 2019, during the 24th solar cycle. In the same years, 10 hPa pressure heights are taken for hourly stratosphere temperature. It was found that there are (7) SSW events during the period selected, three in 2014 and four in 2019. The rel

An electrospinning approach was used to synthesize composite nanofibers of polyvinyl alcohol (PVA) doped with different concentrations (2.5, 5, and 10 wt%) of Yttrium Oxide (Y₂O₃). The XRD diffraction pattern revealed a cubic structure of the prepared nanocomposite. The optical characteristics of pure PVA films and PVA/Y₂O₃ at different ratios were studied, where the energy gap decreases with the increase of Y₂O₃ concentration. The morphology and the functional group of the prepared samples were characterized using field emission scanning electron microscopy (FESEM) and Fourier transform infrared (FTIR) spectrophotometry, respectively. Field emission scanning electron micr

في الجيل الخامس (5G) وأنظمة الاتصالات اللاسلكية المستقبلية، يعد التفاعل بين المدخلات والمخرجات المتعددة (MIMO) والموجات المليمترية (mmWaves) أمرًا مهمًا. يتيح عرض النطاق الترددي الموسع لنطاقات mmWave نشر هوائيات متعددة ، مثل تلك الموجودة في الهواتف الذكية أو الخلايا الصغيرة، مما يتيح أنظمة MIMO بترددات أعلى. يعد الجمع بين <

يتسبب المشي في حدوث الصدمات للاقدام البشرية  وعليه ستتولد قوى  متسارعة وذات  قيم عالية نتيجة لتكرار هذا التصادم والتي يتركز  تاثيرها بالدرجة الاساس  على الكاحل .ان تغيير الزخم بين الكتلة المكافئة للطرف لدى ارتطامه بالارض سيولد اقصى قيم للتصادم وكذلك الحال عند توقف  اجزاءه  المتحركة عن الحركة  .ينتج الزخم على القدم من جراء تاثير تبادل الزخم بين مكونات الطرف ومن  جساءة او مرونة كعب الحذا

Women are a social entity and can not be ignored starting from the process of creation Almighty and through the fact that it represents half of society and a fundamental factor and the corner can not be dispensed with in the composition of the family it is no longer acceptable to leave women to perform their role social and cultural or competitive and political role and in all aspects of political activity, It was not only women but the entire society lived loss, anxiety and oppression, a natural state created by deviation from the teachings and values of civil and followers of the corrupt positions in perception and conscience and behavior and links and relations and transactions until corruption became prevalent in all Social, economic

This article proposes a new technique for determining the rate of contamination. First, a generative adversarial neural network (ANN) parallel processing technique is constructed and trained using real and secret images. Then, after the model is stabilized, the real image is passed to the generator. Finally, the generator creates an image that is visually similar to the secret image, thus achieving the same effect as the secret image transmission. Experimental results show that this technique has a good effect on the security of secret information transmission and increases the capacity of information hiding. The metric signal of noise, a structural similarity index measure, was used to determine the success of colour image-hiding techni

ZnO/SnO₂ nanocomposite thin films are prepared on glass substrates by spin coating and pulsed laser deposition (PLD) techniques, utilizing various ZnO/SnO₂ ratios. The fabricated thin films are exposed to annealing at 300°C to improve their crystallinity. The surface morphology, crystalline structure, and optical properties of the produced ZnO/SnO₂ nanocomposite thin films are examined. The FESEM pictures of ZnO and ZnO/SnO2 nanocomposite thin films fabricated via the spin coating process demonstrated an increase in particle size from 11 to 18 nm when the ZnO ratio increased from 50% to 90%. The minimum particle size for samples generated via PLD was 6.5 nm, achieved with a ZnO:SnO₂ ratio of

The research target explores how the bursting current and sodium sulfate (Na₂S) concentration affect the structural and morphological properties of lead sulfide (PbS) nanoparticles. Three currents of 50, 60, and 70 A were run via a 0.5 mm-diameter lead wire. By dissolving 1, 0.75, 0.5 g of the sodium sulfate in 100 ml of water, 3 concentrations of sodium sulfate salt 10, 7.5, and 5 mg/cm³ were obtained. The sulfur ions react with lead ions when the wire explodes, producing PbS nanoparticles. X-ray diffraction analysis (XRD) of the particle structure revealed a face centered cube arrangement (fcc). The nanoparticles' size and form were detected utilizing a scanning electron microscope (SEM).

Graphene nanoplatelets have received extensive attention from the scientific community in the 21st century because of their two-dimensional planar structure, high surface area, functionalization abilities, and remarkable electrical, mechanical, and thermal properties. In this work, the fabrications of graphene platelets/epoxy nanocomposites, with weight ratios of (0.002, 0.004, 0.006, and 0.008), were synthesized by the combined action of centrifuge and sonication techniques to reduce the aggregation and agglomeration of the graphene. Fourier-transform infrared spectroscopy (FTIR) verifies the prepared samples by the presence of main, distinguishing peaks associated with vibrational groups. Scanning electron microscopic (SEM) shows a goo

In this study, twenty samples of wheat flour were collected from local markets. Thirteen of these samples were local flour with different commercial names, and seven were imported flour with different commercial names. Three radionuclides (U-238, Th-232, K-40) were detected in all the wheat flour samples with a multichannel buffer (MCB) detector. The value of the specific activity of the local flour for the element U-238 ranged between 4.34 and 11.88 Bq/kg, with an average value of 7.98 Bq/ kg, as for the element Th-232, its specific activity ranged between 3.22 and 4.84 Bq/ kg, with an average value of 3.94 Bq/kg. For the element potassium K-40, the specific activity ranged between 220.45 and 290.65 Bq/kg with an average value of 248.63

This study aimed to identify the perceived mental image of volunteering, and its relationship to volunteer motivation among a sample of Al-Quds Open University students, as well as to identify the differences in the perceived mental image of volunteering due to variables (gender, year of study, place of residence, college). The researcher has used relational descriptive approach. The researcher has used two questionnaires, the first was used to measure the perceptive mental image of volunteering, and the second to measure the motivation towards volunteering, and the study population may consist of all students of Al-Quds Open University Hebron Branch during the first semester of the academic year 2021/2020 and their number (3462)Male and

A low speed open circuit wind tunnel has been designed, manufactured and constructed at the Mechanical Engineering Department at Baghdad University - College of Engineering. The work is one of the pioneer projects adapted by the R & D Office at the Iraqi MOHESR. The present paper describes the first part of the work; that is the design calculations, simulation and construction. It will be followed by a second part that describes testing and calibration of the tunnel. The proposed wind tunnel has a test section with cross sectional area of (0.7 x 0.7 m2) and length of (1.5 m). The maximum speed is about (70 m/s) with empty test section. The contraction ratio is (8.16). Three screens are used to minimize flow disturbances in the test section.

Petrophysical properties evaluation from well log analysis has always been crucial for the identification and assessment of hydrocarbon bearing zones. East Baghdad field is located 10 km east of Baghdad city, where the southern area includes the two southern portions of the field, Khasib formation is the main reservoir of East Baghdad oil field.

In this paper, well log data of nine wells have been environmentally corrected, where the corrected data used to determine lithology, shale volume, porosity, and water saturation. Lithology identified by two methods; neutron-density and M-N matrix plots, while the shale volume estimated by single shale indicator and dual shale indicator, The porosity is calculated from the three common po

Table tennis is considered one of the fast base sports that the player needs to have the speed of performance and awareness, especially in straight forward and back strikes, which is an important offensive skills, and the player success depends on his perception speed to the point of the fall of the ball in the arena of his competitor. But there is no way to measure cognitive processing speed. Therefore, the researchers sought to design a test that measures this ability to ensure its scientific evaluation, and then establish standard scores for this test for the players of the specialized school of table tennis, to help evaluate them objectively and move away from subjective estimates when evaluating and developing measuring instruments in

This work deals with thermal cracking of heavy vacuum gas oil which produced from the top of vacuum distillation unit at Al- DURA refinery, by continuous process. An experimental laboratory plant scale was constructed in laboratories of chemical engineering department, Al-Nahrain University and Baghdad University. The thermal cracking process was carried out at temperature ranges between 460-560^oC and atmospheric pressure with liquid hourly space velocity (LHSV) equal to 15hr^-1.The liquid product from thermal cracking unit was distilled by atmospheric distillation device according to ASTM D-86 in order to achieve two fractions, below 220^oC as a gasoline fraction and above 220^oC as light cycle o

 السياسة الاقليمية التركية تجاه الخليج العربي 2002-2008

The effect of temperature and pH on the stability of the antibacterial
“tilmicosin” was evaluated in this study. The temperature degrees studied were
25 , 45 and 65 oC each for 24 hours , while the pH values studied were 6 , 7 and
8 each at room temperature and for 24 hours also.
A microbiological assay method was employed for analysis of the collected
samples.
The results of analysis indicate significant drop in activity of the drug as a
results of exposure to temperature or pH.
The above mentioned results necessitate the maintenance of drinking water in
the storage depots of the field below 65 oC especially in summer season, so to
keep the chemical structure of the drug and to offer enough therapeutic<

Forecasting has become common process and reality. Since man has found multiple forms of simple predictive predictions, fruitful predictive results have emerged, such as weather forecasting or trading on stock exchange. The research was organized by defining the problem, which was manifested by the question:
(What is the prediction in global logo design methods?)
The aim of the research: (revealing design prediction in the methods of global logos). The theoretical framework was: (the concept of prediction in the design of global logos), (methods of global logos), (types of prediction) and then were attached to indicators, results and conclusions, including:
- The color value of international logos came with human needs: a

This study concerns with incidence of infection of gastro-intestinal
helminthes ( Nematode) in horses. Results revealed that the rate of parasitic
helminthes was 50.54%. The peak of Nematode infection was 86.6% in
Spring followed by 57.5% .during Autumn then the infection declined in
Summer and Winter to 33.73% and 22.5% respectively Four genera of
parasitic nematodes were identified the highest rate of infection with
Strongylus was recorded in horses 49.54% followed by Parascris 14.09%,
the lowest infection with Trichostrongylus and Oxyuris was 9.09 % and
7.72% respectively. Result revealed higher helminthes infections in females
57.05% than in males 39.7%.

Thirty two mice were used to study the histopathological changes resulted
from the effect of vitamin C on the some mice tissues treated with nitrate.
Mice were divided randomly in to four equal groups. The 1st group was given
Vit C and potassium nitrate via water. The 2nd group was given potassium nitrate
and the 3rd group received Vit C only, while the 4th group represented the
control.
Two animals from each group were scarified weekly. The results showed
similar pathological changes in the 1st and 2nd group especially in the stomach
and intestine which gave severe changes that characterized by hyperplastic
changes in addition for the hemorrhages and the infiltrations of inflammatory
cells in all layers of

In 120 hen eggs ( local eggs , hatching eggs and table eggs ) a bacteriological
pollution with high rate was observed by isolating 427 bacterial isolates from
which 199 isolates related to the egg's shell , 117 isolates related to albumen sac,
and 111 isolates related to yolk sac .
The Salmonella ssp isolates were the greater number (142 isolates) ,
Echerichia coli ( 138 isolates ) , Streptococcus ssp ( 89 isolated) and lately
Staphylococcus ssp ( 58 isolates ) which was never isolated from internal egg
components (Albumen Sac and yolk sac) .
The study explains that the shell of the egg is more contaminated than
Albumen Sac and yolk sac and that the table egg is more contaminated than the
other groups.