In recent years, the iris biometric occupies a wide interesting when talking about
biometric based systems, because it is one of the most accurate biometrics to prove
users identities, thus it is providing high security for concerned systems. This
research article is showing up an efficient method to detect the outer boundary of
the iris, using a new form of leading edge detection technique. This technique is
very useful to isolate two regions that have convergent intensity levels in gray scale
images, which represents the main issue of iris isolation, because it is difficult to
find the border that can separate between the lighter gray background (sclera) and
light gray foreground (iris texture). The proposed met

     Infection with Trichomonas vaginalis and its relation to some diseases have lately had much attention.  The objective of this study was to assess the infection rate of T. vaginalis and its relation to pelvic inflammatory diseases, infertility, and vaginosis. The study also assessed some demographic, clinical, and immunological parameters in women infected with T. vaginalis. The study included 160 non-pregnant married women who attended some private clinics and public hospitals in Baghdad from October 2020 to February 2021. All participants had symptoms of vaginal discharge only or vaginal discharge with lower abdominal pain. The participants were divided into an infertility group (

    As part of our research on efficiency improvement of PERC (Passivated Emitter Rear Solar Cell), achieving very low reflectivity values of solar cell surface is a must. One of the most advance technologies to do so is the use of advanced texturing for the front surface of the cells. This texture, also known as Black Silicon, consists of peaks and valleys of nano metric dimensions and capable of dramatically reducing the reflectance of the front surface. A reflectance around 5%  was reached ,using simulation, when using a Black-Silicon texturing with height of 50nm with peak rounding of 5nm. Even though this texturing may affect other parameters such as series resistance or surface recombination, as a starting point

     A mineralogical study using X-ray diffraction supported by scanning electron microscopic examination on the Paleocene- Eocene Kolosh and Gercus formations from northern Iraq is conducted to show the distribution of clay minerals and their paleoenvironmental implications. Smectite palygorskite, kaolinite, illite, and chlorite are commonly present in varying proportions within the Kolosh and Gercus formations. Association of smectite and chlorite in the claystone of the Paleocene Kolosh Formation refers to marine environment of this formation, whereas development of palygorskite fibers from smectite precursor may relate to post-depositional diagenesis. In addition, the abundance of illite and kaolinite in the Eocen

The aim of this project is to study the efficacy of nicotine (as nicotine sulfate)
extracted from tobacco by- products of the Iraqi Tobacco and Cigarettes Industry
against cabbage aphid Brevicoryne brassicae (L.). On the basis of LC50 values,
laboratory data have indicated a positive correlation between these values and
progress of insect life cycle . The LC50 values for the fourth nymphal instar were 4.9
more than first instar; while it was for apterae 6.5 times more than the first instar for
nicotine sulfate. The alatae were more susceptible to insecticide than apterae, where
LC50 values for apterae were 1.03 times more than that for alatae LC90 for nicotine
sulfate on all stages follow the same

In this study we prepare Cu2O films by using plasma sputtering method on
substrate from glass type Pyrex; we used system of dipole sputtering with magnetic
field. We studied the optical and structural properties to Cu2O and we studied
thermal annealing with 150◦C on optical and structural properties for prepared thin
films with thickness 2000Ǻ for one hour. It showed that the thermal annealing leads
to increase of optical energy gap. We used x-rays diffraction for diagnostic structure
and nature thin film material. the results appear that the thin film is poly crystalline
structure, the thermal annealing leads to drop of diffraction peaks and increase it
edges that's means it become more uniform

In this research the uranium concentrations in (13) different types of natural herb
samples had been measured, and to limit the level of contamination with radio
nuclides. The determination of uranium concentration in these samples has been
done by using CR-39 track detector, the nuclear reaction used a source of nuclear
fission fragments is 235U (n,f) obtained by the bombardment of 235U with thermal
neutrons from (Am-Be) neutron source which has a flux of (5000 n cm-2 s-1). The
results obtained show that the concentration of Uranium were calculated by
comparison with standard samples, and varies from 0.235 ppm in (calum) type to
0.552 ppm in (Lazmender) type, all the results obtained are within th

A design and implementation of images' cryptography system is evaluated in this
paper. This system depends on the idea of allocating a part of a digital image
(possibly the first block of the image) so as to produce the cipher keys for the other
parts. Circles generating algorithm is used to produce keys from the chosen block,
then corresponding circles in other blocks will be encrypted using the located keys.
So in this method encryption keys are brought from the plain-image (source image)
it self using graphics shapes pixels.

In this paper a simulation for a mathematical two dimensional model was conducted
to assess the presence of defocusing due to telescope aperture quality. The point
spread function (psf), Modulation transfer function (MTF), and Fourier frequencies
of binary star are computed in the absence and presence of defocusing. The results
show that the total frequency components of MTF decreases very sharply as
defocusing values goes to 6 and after this value the total frequency changes very
slightly afterward. The relative heights of the second to third peaks decrease rapidly
as defocusing values goes to 3 and slightly changes after that.

The effect of pressure, applied to PMMA sample, on Mach -Zender interference
pattern has been studied.
The effects of length, depth and height of the PMMA samples on the resulting
number of fringes are investigated. The results of the experiments show almost a
linear behavior between the numbers of displaced fringes and the displacement of
the PMMA molecules with the applied pressure in all cases.
Finally, comparing the experimental with the theoretical results, it is found that,
there is a good agreement, in most cases, between them provided introducing a
correction factor which is found to be equal approximately 3.This effect can be used
as a pressure sensor.

The present study has been conducted to evaluate the inhibitory effects of the
aerial plant part (leaves and bark) extracts of D. viscosa before and during flowering
against some pathogenic bacteria for human, plants, and against yeast (Candida
albicans) by using different polarity organic solvents: Ethanol and Diethyl ether.
The agar well diffusion method was used to evaluate the inhibitory actions of these
extracts with eight concentrations: 0, 2.5, 5, 10, 20, 30, 40 or 50 mg/ml. The
Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration
(MBC) values were also determined, in addition to compare the results of the plant
extracts with the results of the susceptibility of path

This research has studied the effect of addition glass fibers (woven and chopped)
and Zirconium oxide Nano-particles (ZrO2) with different weight percent to the
conventional poly (methyl methacrylate) (PMMA). The prepared Nano-crystalline
ZrO2 powder with particle size of about 95nm was syntheses directly by sol-gel
method. The gel dried at 100oC for 1 hour and annelid at 400oC for 3 hours.
The conventional acrylic resin prepared with 2:1 powder to liquid ratio to prepare
pure sample, composite samples prepared by reinforcing PMMA with woven or
chopped glass fiber (8, 12) wt.%, and reinforcing by (1,2,3) wt.% of prepared ZrO2
Nano-powder.
The structural tests include: (XRD, AFM, and FTIR). The crystallized phas

The study tagged: (The aesthetics of balance and its relationship to the design of the body of the industrial product) discussed the role of balance in the design of industrial products of different shapes, colors and sizes, as well as their function. Based on the research problem that was determined by the following question: What is the relationship between balance and the design of the body of the industrial product? The aim of the research is to: reveal the statement of the effectiveness of the balance in the design of the industrial product body.
The study was defined in four chapters: in the first chapter, a problem, the importance, and the aim of the research were presented. The second chapter contained the theoretical framewor

ان المسار الحركي لمركز ثقل الجسم عند اجتياز الحاجز له اهمية كبيرة في طبيعة المؤشرات البايوميكانيكية قبل وفوق وبعد الحاجز كما وتؤثر في زمن الاجتياز لكل حاجز فضلا عن تأثيرها على المؤشرات وزمن الخطوات الثلاثة بين الحواجز وهذه جميعا تؤثر في زمن الاجتياز ، ومن خلال متابعة تدريبات عينة البحث لاحظت الباحثتان ان مسار مركز ثقل الجسم خلال الاجتياز مار بمنحنى كبير اي ان مركز ثقل الجسم فوق الحاجز كبير مما يسبب كبر زمن

    يرمي البحث للتعرف على مستوى طلبة قسم اللغة العربية في فهم المسموع. وأعد الباحثان قائمة بمهارات فهم المسموع الواجب توافرها لدى عينة البحث ، وتكونت بصيغتها الاولية من (16) مهارة وبعد عرضها على مجموعة من المحكمين تم الاتفاق على (12) مهارة، وتم بعدها صياغة اختبار فهم المسموع من نوع الاختيار من متعدد تكون من (12) فقرة  بعدد المهارات التي تم الاتفاق عليها ،  تم عرضه على مجموعة من المحكمين للتأكد من صدقه،

There is no doubt that development is a human necessity and an urgent technical imperative that science imposes on all aspects of societal life. Especially in the field of graphic design, as logos are among the most prominent graphic achievements of an interactive nature with the requirements of the technical and functional era to serve the recipient and the continuity of interaction with him through a visual message sent to him constantly to remind him of what he interacted with in advance, which is known as visual identity, and during the process of developing logos especially And by providing designs that suit the contemporary technical and functional development, we often see the logo lose its visual identity. Therefore, the research

      Concentrations  of  four  heavy  metals, Zinc , Copper , Lead  and  Cadimium  were  determed  in  water  and  sediment  samples   collected bi-weekly  from  six  sampling sites  on  the  lower  part  of  River  Diyala    during  low  flow  period  (August  to  October)  and   high  flow  period  (April  to  June). A  reference  point site (1)  was  situated   upstream the  effects  of  the  effluent. Present  work  describes  the  e

هذا البحث "التربية من خلال القصص القرآني" يتكون البحث من خمسة فصول، الفصل الأول يتضمن مشكلة البحث، أهمية البحث، هدف البحث، حدود البحث، منهج البحث، وتحديد المصطلحات، الفصل الثاني يحتوي الخصائص العامة للقصص القرآني المتمثلة بالخصائص التعليمية للقرآن الكريم، أنواع القصص من حيث الاشتقاق، وأنواع القصص القرآني: (الفنية، التاريخية، الواقعية، التمثيلية، الرمزية)، عناص القصص القرآني، والأهمية التربوية والتعليم

Chapter One – introduction

Nations managed today to achieve progress in the field of modern technology. Science has changed many beliefs and trendiness that people have held for long time, skills and scientific thinking developed, and made scientific observation  and experiment replace narration and taking from others. That is attributed to examining  the educational systems searching for the locations of defect, and shortage.

In the light of educational modernizations, many models of teaching incliuding a model for social tracing attributed to Herbart Thelen, which is a model to develop skills of social participation in the democratic process (Al-Khawalda,1993,335).

The researcher attempts to examine Barman model in acquiring the historical concepts among fourth-grade students at literary classrooms. To this end, the researcher held the null hypothesis, there is no significant difference between the experimental groups who was taught based on Barman model and the control group that taught based on the traditional method in acquiring the historical concepts on the post-test. To testify the effectiveness of Barman model, the researcher administered a questionnaire included (60) items on bunch of female-students who were selected from al-khamaeal preparatory school in al-hurriyah district in Baghdad. The author utilized different statistical tools to analyze the collected data.    &

كون الباحثان اعضاء في لجنة الاختبارات المركزية في المركز الوطني لرعاية الموهبة الرياضية لاحظت ان اغلب البطاريات المستخدمة في المركز لا تلبي كل المتطلبات اذ ان اغلبها يعتمد على  الجسمية والقدرات البدنية والحركية مع اهمال واضح للاختبارات المهارية، لذلك قام الباحثان ببناء بطارية اختبار مهارية عن طريق الاجراءات المعتمدة في بناء الباطاريات واستخلاص  بطارية اختبار من اربعة اختبارات وقد قام الباحثان باجر

This research is concerned with the study of (the dialectic of the familiar and the unfamiliar in Islamic photography), and it consists of four chapters.
If you dealt with the problem of the research subject (the dialectic of the familiar and the unfamiliar in Islamic photography, as it appeared realistic, familiar forms and strange and strange unfamiliar forms represented in many of the main schools of Islamic photography that emerged in Iraq and Persia and then the Ottomans and the However, Islamic painting still retains those previously witnessed and unseen images, which pose themselves forcibly in the form of many questions that must be faced and studied by investigation, observation, extrapolation and conclusion through scientifi

Four species of insects, Carpophillus obsoletus Er., Carpophilus sp., Bitoma lycnformis Wall and Scatopse sp., were found in association with infected spathes of date palm with Mauginella scaettae Cav. The later fungus was the dominant species isolated in pure cultures both from diseased spathes and from contaminated insects. Bitoma lycriformis is the first record for Iraq.

The impact of television has made it an essential technology that can't be dispensed with in all circumstances and situations, measuring the society's need for it. Some argue that there is no stronger media than television in introducing people of the world to each other, as it has the most powerful impact and attracts millions of viewers.
Television is deemed as the most effective tool of media as it is designed to capture both sound and image. The image, in itself, has the ability to engage and interact with our thoughts. In light of the aforementioned, it is noticeable that this interactive medium (television) has significantly evolved over the years, thanks to modern technologies that have been introduced over time. These advancem

Reverse osmosis technique was used for the treatment of industrial waste water. Ions like calcium, magnesium, sodium, sulfate, and nitrate were found in the waste water of the General Company of Vegetable Oil with high concentrations which must be treated for reuse. Feed water containing the above mentioned ions was fed to the RO unit at feed flow rates (0.4 and 0.8 lit/min) and different operating pressure (2-4bar) .It is concluded that increasing operating pressure and feed flow rate improved the separation by a decrease in the concentration of ions in the product. High rejection was obtained for all ions present in feed water, ranging from (63.8-97.6%). Rejection of TDS was 87% when the concentration of TDS was reduced from 1192 to 15

The world of Muwaffaq Khidr Al-Qasasi has a clear and realistic orientation. This trend is in full harmony with his philosophy and vision of life and things. Through self-awareness is nothing but an expression of an imbalance in the interaction between self and reality, and it remains lacking in credibility.

          شهدت الألعاب الرياضية تطوراً واضحاً في الآونة الأخيرة كونها أصبحت تواكب التطور العلمي الحاصل في الانجازات الرياضية في مختلف الألعاب، وكون كرة القدم من اهم الألعاب الجماعية على مستوى العالم والتي تحظى بخصوصية فأن لاعبيها يجب ان يكونوا على دراية كاملة في التطورات التي تطرأ عليها من الناحية التدريبية الفنية والميكانيكية. وبما ان حارس المرمى هو العنصر الأهم في الفريق والمركز الأ

     Chronic renal disease (CRD) is a pathophysiologic process with multiple etiologies, resulting in the inexorable attrition of Nephron number and function and frequently leading to end-stage renal disease (ESRD). In turn, ESRD represents a clinical state or condition in which there has been an irreversible loss of endogenous renal function, of a degree sufficient to render the patient permanently dependent upon renal replacement therapy (dialysis of transplantation) in order to avoid life threatening uremia, reflecting a dysfunction of all organ systems as a result of untreated or under treated acute or chronic renal failure. The current study was involved 80 patients, the age range within 25-70 ye

A numerical technique is developed to predict both the transient and steady axisymmetric two-dimensional natural convection heat transfer for water as the working fluid in a vertical annulus enclosure of a fixed radius ratio (2) aspect ratio (1) and Rayleigh number ranging within (103 ≤Rad≤106) for a fixed Prandtl number (Pr=7). Finite difference analogs of the Navier – Stokes and thermal energy equations are solved in the stream function – vorticity frame work. The results obtained are
presented graphically in the form of streamline, vorticity and isotherm contour plots. A correlation has been set up to give the average Nusselt number variation with Rad and for which the results are found to be in good agreement with previo

       A rapid, simple and sensitive spectrophotometric method for the determination of trace amounts of chromium (VI) was studied. The method is based on the reaction of chromium (VI) with promethazine forming a red colored species by chromium in hydrochloric acid  medium  and exhibits  a maximum absorbance at 518 nm. A plot of absorbance with chromium (VI) gives a straight line indicating that  Beer’s law has been obeyed over the range concentration of 0.05-4.0 µg/ml with a molar absorptivity of chromium(VI) 2.04 ï‚´ 104       l.mol-1.cm-1 , Sandell’s sensitivity index of 0.0025 µg.cm-2  while the limit of detection (LOD) was found to be 0.0924 µg.ml