Background: cerebellar astrocytroma is the commonest paediatric posterior fossa tumor.
Patients and method: 54 patients taken from the neuro-surgical unit in the specialized surgical hospital from Aug 1995 till March 2003, all patients studied thoroughly age, gender, Presentation, Radiological diagnoses, surgery, additive therapy & final outcome including 5 years survival &
conclusion is reached.
Results and discussion: the results show that more than half of the patients were at age 5-7 years with very slight male predominance, most cases diagnosed by CT, some with MRI or MRI
alone.Surgery was done for all cases & 16 patients' preceeded by VP shunt. The final out come is compared with other si

The objective of the study was to investigate the effect of Ericsson Albumin Method to separate Y- from X-bearing sperms in mice. The sperms were obtained from caudal epididymis of male mice and prepared by Ericsson method using albumin in two concentrations (8% and 18%) fallowed by intra-peritoneal insemination of female mice. The study showed there was a significant increase (P>0.05) in pregnancy rate in female mice that inseminated by sperms were prepared by Ericsson method. Also, the results demonstrated that Ericsson method was found (75%) effective for male gender selection compared to conventional method (51.25%) without separation of Y- from X-bearing sperms.

In the present study, synthesis of bis Schiff base [I, II] by reaction of one mole of terephthalaldehyde with two mole of 2-amino-5-mercapto-1,3,4-thiadiazole or 4-amino benzene thiol in the ethanol absolute, then compounds [I,II]  were reacted with Na₂CO₃ of distilled H₂O, then chloroacetic acid was added to yield compounds [III,IV]. O-chitosan derivatives [V,VI] were synthesized by reaction of chitosan with compounds [III,IV] in acidic media in distilled water according to the steps of Fischer. O–chitosan (grafted chitosan) [V,VI] was blended with synthetic polymer polyvinyl alcohol (PVA) to produce polymers [VII,VIII], then these polymers were blended with nano: Gold or Silver by u

To study the allometric growth of body and carcass traits, twelve new born Karadi lambs were docked within 3 days of their birth using rubber-rings, and left with their mothers till weaning (2.5 months). Another 12 weaned Karadi lambs obtained from local market were left intact. Following an adaptation period of a week, the docked and intact lambs with an average initial weight of 16.83±1.522 and 19.92± 0.748kg, respectively were randomly divided into three equal groups to be slaughtered at 20, 30 and 40kg. Results revealed that the allometric growth coefficients of both docked and intact lambs of dissectible lean and bone were negative heterogenic (b<1), indicating an early maturing tissues

مشكلة البحث وآهميته :

تعد مرحلة ما قبل المدرسة من المراحل شديدة الأهمية في نمو الأطفال في هذه المرحلة تمتد رغبة الطفل في التعرف على العالم المحيط به ثم تتطور أنشطته لتصبح أكثر عمقا وأتساعا فتتضمن البيئة البعيدة عنه ، هذا فضلا على أن 50% من التنمية الذهنية للطفل تتشكل في السنوات الأربع الأولى من العمر وأن القراءة هي إحدى المكونات الأساسية التي تعززهذا الجانب من التنمية .

( أبو

Transparent thin films of CdO:Ce has been deposited on to glass and silicon substrates by spray pyrolysis technique for various concentrations of cerium (2, 4, and 6 Vol.%). CdO:Ce films were characterized using different techniques such as X-ray diffraction (XRD), atomic force microscopy(AFM) and optical properties. XRD analysis show that CdO films exhibit cubic crystal structure with (1 1 1) preferred orientation and the intensity of the peak increases with increasing's of Ce contain when deposited films on glass substrate, while for silicon substrate, the intensity of peaks decreases, the results reveal that the grain size of the prepared thin film is approximately (73.75-109.88) nm various with increased of cerium content. With a sur

This study was aimed to investigate the role of some Toll-like receptor 5 (TLR5) and E. coli fliC gene polymorphisms with increased risk to recurrent urinary tract infections (rUTI). From 180 specimens (blood and urine) were collected from women of different age, 60 of them serve as control while 120 had rUTI symptoms. After culturing of urine specimens, 43 (35.8%) were identified as E. coli isolates. Four SNPs were identified when amplified and sequenced of TLR5 include rs5744168, rs775385356, rs2072493 and rs5744174. Twelve flagellar antigen serotypes were obtained from fliC sequence of 28 isolates. By using Expasy a

Green tea is consider as a natural sources of antioxidants used to treat pathological changes occurring as a result of using of many drugs  particularly in the liver tissue. Forty adult male rabbits were randomly divided into four groups (10 rabbits /group) and were treated daily for 30 days as follows: first group (c): is the control group , second group (T₁) : rabbits in this group were allowed to ad libitum supply of drinking water containing 2.5 gm /kg b.w of green tea extract , Third group (T2):  rabbits in this group received 500 mg/kg b.w. of acetaminophen orally,  fourth group (T₃) : rabbits in this group were allowed

أن نجاح عمليات التعلم مقترنة بعدة أساليب ومن هذه الاساليب أسلوب التعلم الإتقاني الذي يتطلب الزيادة في عدد الوحدات التعليمية وتكرار تمريناتها من أجل منح الضعفاء أوقات إضافية للنهوض بمستوى أدائهم، وأن التمرينات المستخدمة حالياً وبدون تطبيق هذا الأسلوب غير كافية والسبب يعود في ذلك إلى قلة الوقت الممنوح للمتعلمين لإتقان قدرتي التوافق والرشاقة الحركية وقلة الوحدات التعليمية وتكراراتها والتغذية الراجعة وإهم

.يهدف البحث الى : - التعرف على قيم الثقافة الرياضية وتحديدها لدى بعض اعضاء الهيئات التدريسية في جامعة الانبار ودورها في التنمية الاجتماعية للافراد . وفرض البحث الى : - وجود تباين كبير في امتلاك قيم الثقافة الرياضية بين افراد عينة البحث استخدم الباحث المنهج الوصفي باسلوب المسح لملائمته وطبيعة البحث وشملت افراد عينة البحث على (53) من اعضاء الهيئة التدريسية في كليتي الحاسوب والتربية في جامعة الانبار ، حيث تم توزيع

وللتحقق  من هدف البحث  صيغت الفرضية الصفرية الاتية:

• لا توجد فروق ذات دلالة احصائية عند مستوى (0.05 ) بين متوسط درجات طالبات المجموعة التجريبية التي درست وفقا لاستراتيجية (تنال القمر ) ومتوسط درجات طالبات المجموعة الضابطة التي درست على وفق الطريقة الاعتيادية في مقياس مهارات ما وراء المعرفة .

ولأجل التحقق من صحة هذه الفرضية اجرت الباحثة  تجربة استغرقت الفصل الدراسي

This research shows the following points:

1-Features of the life of Imam Suyuti

2-First, the goals of public education: Educational Thought at the Imam Suyuti through Second, Third, special education goals: classification of science, Fourth, meaning he has the mind, Fifth: World Literature, VI: Literature learner

3-was informed of the Islamic Educational Thought Media, worked as science and teaching.

4-wrote in the human soul and away from the world and its desires, and how to deal with this self-way educational so based on a book of the year, and longer Mqamath of the most important books in the field of the human soul, edema tradition because he sees that the mind found in order to think about the verses

The present study was conducted to evaluate the effect of variation of influent raw water turbidity, bed composition, and filtration rate on the performance of mono (sand) and dual media (sand and anthracite) rapid gravity filters in response to the effluent filtered water turbidity and headloss development. In order to evaluate each filter pe1formance, sieve analysis was made to characterize both media and to determine the effective size and uniformity coefficient. Effluent filtered water turbidity and the headloss development was recorded with time during each experiment.

Collapsing building structures during recent earthquakes, especially in Northern and Eastern Kurdistan, including the 2003 earthquake in Cewlig; the 2011 earthquake in Van; and the 2017 earthquake near Halabja province, has raised several concerns about the safety of pre-seismic code buildings and emergency facilities in Erbil city. The seismic vulnerability assessment of the hospital buildings as emergency facilities is one of the necessities which have a critical role in the recovery period following earthquakes. This research aims to study in detail and to extend the present knowledge about the seismic vulnerability of the Rizgary public hospital building in Erbil city, which was constructed before releasing the seism

The High Power Amplifiers (HPAs), which are used in wireless communication, are distinctly characterized by nonlinear properties. The linearity of the HPA can be accomplished by retreating an HPA to put it in a linear region on account of power performance loss. Meanwhile the Orthogonal Frequency Division Multiplex signal is very rough. Therefore, it will be required a large undo to the linear action area that leads to a vital loss in power efficiency. Thereby, back-off is not a positive solution. A Simplicial Canonical Piecewise-Linear (SCPWL) model based digital predistorters are widely employed to compensating the nonlinear distortion that introduced by a HPA component in OFDM technology. In this paper, the genetic al

In contemporary discourses the debate of most Western thinkers is about the efforts to clarify the normative foundations of democracy. And then, some political thinkers have adopted other models differ in terms of standards for traditional liberal democracy. Be the common goal of democracy will give the formation of a greater role than usual in political liberalism rather than limiting the participatory activity of citizens on the function to give permanent legitimacy to the exercise of state authority. The activity is to be permanently enshrined in the democratic public sphere and the issue must be understood as the source of all political decisions.

This study aims to explain the purposes of thinking in light of the Holy Qur’an. The study adopted the deductive method by analyzing the meanings of the eighteen thinking verses mentioned in the Holy Qur’an That is by referring to the ancient and contemporary book interpretations and inferring the purposes of thinking from the context of those verses. The study concluded that there are seven main purposes, for thinking in the light of the Holy Qur’an, are understanding the universal regulations, contemplating the social codes, inferring, extracting maxims and meanings from the Qur’anic proverbs, analyzing the situation objectively, balancing between interests and evils, and freeing the mind from the authority of the paranormal. T

This work presents external morphological study of the leafhopper Empoasca decedens
Paoli, 1932 particularly male genitalia, which were dissected and illustrated.
The genus Empoasca Walsh (Typhlocybinae: Empoascini) contains small, slender, fragile
and generally green leafhoppers. The overall length ranges from 3-3.5 mm. Members of this
genus are charachterized by their uniformly green color, inner and outer apical cells of
forewing not attaining wing apex, second and third apical cells are sessile or triangular or
even short stalked, submarginal vein of hindwing extends around wing apex and turned
beneath costal margin, apical thirds of tibiae and tarsal segments including claws are
prominently green while other

تم في هذا البحث دراسة تأثير استخدام المنحدر المختلف الارتفاعات في تحسين بعض المتغيرات الكينماتيكية الخاصة بمشي المعاقين المصابين بالبتر الأحادي تحت الركبة ، أما أهم أهداف البحث فهي إعداد تمارين تأهيلية بعد لبس الطرف الصناعي باستخدام المنحدر المختلف الارتفاعات ومعرفة تأثيرها في تحسين المدى الحركي لمفاصل الأطراف السفلى أثناء مراحل المشي ، ولقد تم تطبيق هذه التمرينات على عينة من (8) مرضى من المعاقين المتواج

oupling reaction of 4-aminoantipyrene with the (L-Histidine) gave the new bidentate azo ligand.The prepared ligand was identified by FT.IR, UV-Vis and HNMR spectroscopics technique. Treatment of the prepared ligand was done with the following metal ions (Ag+ ,Pb+2 ,Fe+3 ,Cr+3  ) in aqueous ethanol with a1:1 and 1:2  M:L ratio . The prepared complexes were characterized by using FT. IR and UV- VIS spectroscopic method as well as conductivity measurements. Their structures were suggested according to the results obtained.

     نتيجة للدور الهام الذي تقوم به المصارف كمؤسسات مساهمة وفعالة في إدارة النشاط الاقتصادي، فهي تلتزم من خلال العمليات والأنشطة التي تقوم بها بالاستعلام عن المتعاملين معها ، وهذا ما يجعلها تمتلك معلومات واسعة عن عملائها نشاطاتهم، إضافة ً الى المعلومات المتعلقة بإعمالها  حيث يستلزم نجاحها في هذا الدور أن تكون قراراتها مستجمعة ً لمقومات السلامة وأن تتخذ الحيطة والحذر الكافيين لتجنب ما يواجها من

The current study was performed an investigation in seropositive stray cats with Toxoplasma gondii and to correlate the results of pathological lesions with seropositive results of the cats. To achieve these goals, fifty blood samples and specimens from internal organs (liver, spleen, brain, kidney, intestine and lung) of stray cats were collected from different area of Baghdad Province during the period 1.10.2011-1.10.2012. Seropositive ELISA-IgG was demonstrated that 66 % of stray cats while female expressed (75 %) of seropositive ELISA-IgG were higher than male (30% ) and animals with average age 2months showed high percentage of seropositive ELISA-IgG (100%) as compared with age (adult cat) that expressed( 63.82 %) of seropositive. T

      In this work, a new formula of intensity distribution in image plane of elliptical object was founded (Elliptical spread function), by using optical system including circular aperture. The Gauss quadrature method of numerical integral was used for calculating equation's integrals. Curves are shown for system having focal error and intensity distribution in focal axis.  

Atherosclerosis is the most common causes of vascular diseases and it is associated with a restriction in the lumen of blood vessels. So; the study of blood flow in arteries is very important to understand the relation between hemodynamic characteristics of blood flow and the occurrence of atherosclerosis.

looking for the physical factors and correlations that explain the phenomena of existence the atherosclerosis disease in the proximal site of LAD artery in some people rather than others is achieved in this study by analysis data from coronary angiography as well as estimating the blood velocity from coronary angiography scans without having a required data on velocity by using some mathematical equations and physical laws. Fif

Background: It is important to achieve good glycemic control to avoid long-term diabetic complications. It has been largely debated about the role of correct way of insulin administration to get the desired glycemic control.
Objective: To evaluate the effect of teaching diabetic patients who are on insulin therapy the correct way of injecting insulin and its effect on glycemic control.
Methods: A non randomized clinical trial with 820 diabetic patients on insulin therapy on whom A1 c estimation was performed before and after three months of teaching them the right injection technique.
Results : Sixty seven patients (8.17%) had A1 c 6.5% before they were enrolled in the study while the majority (753 patents, 91.82%) had A1 c 6.5%

In this paper, simulation study of the frequency shift of photonic bandgaps due to refractive index scaling using liquids filled hollow-core photonic crystal fibers is presented. Different liquids (distilled water, n-hexane, methanol, ethanol and acetone) are used to fill the cladding of 2 types of hollow core photonic crystal fibers (HC19-1060, HC7-1060). These liquids are used to change the effective index scaling and index contrast of the cladding. The effect of increasing temperature of the liquid (20-100 0C for water and 20-70 0C for other liquids ) infiltrated hollow core fiber on the bandgap width and transmission properties has been computed. The maximum photonic bandgap width at 0.0243 has appeared with filling HC7-1060 PCF with

Waste is one of the most important problems affecting the city’s environment and its urban landscape, which results from the activities and activities of man and the natural environment. Its sources have varied between residential, commercial, industrial, medical and hazardous, and its spread in cities, on roads and on abandoned open lands, has led to significant negative effects and risks to human health and the environment.

  Therefore, there were serious attempts to deal with waste and follow sequential steps that formed a waste management system such as (collection, sorting, transport, then treatment and disposal). Preventing and reducing waste, then recycling and recovering by composting or burning, and ending with bu

      Negotiations are distinguished in that they are an easy and simple means between the conflicting parties, and it is an effective means at the same time as the conflicting parties seek understanding on the most effective way to solve their dispute, but negotiations are not always appropriate to resolve international disputes, especially when there is a disparity in power between the negotiating countries, or when it is missing Goodwill, or even when one of the parties is absent or less flexible, and the internal circumstances of one of the conflicting countries may play a negative or positive role in the success of the negotiations, away from the influence of the role of external variables in that, a

Background: Zinc is involved in a variety of
metabolic processes and it has a well known
antioxidant activity, so the measurement of its serum
level can have a special value in several diseases.
Objectives: The study is designed to determine the
serum zinc level in heart failure patients and to
compare it with that of healthy individuals and to
study the significance of the results obtained.
Methods: Atomic absorption spectrometer
technique was used to determine serum zinc level in
fifty heart failure patients and fifty healthy individuals
who were age and sex matched.
Results: The mean serum zinc level in healthy
individuals was about 45.5% greater than that of heart
failure patients. This diffe