In this study the Entrance Surface Dose (ESD) received by pediatrics patients undergoing chest, abdomen and skull X-ray examinations was estimated. The study was conducted in two hospitals in Najaf city where three radiographic systems were considered. The study participants were classified into four age groups 0-1 , 1-5 , 5-10 and 10-15 years. Calculations were performed using exposure factors, kVp, mAs and focal-skin distance, together with patient data age. The ESD was calculated for the involved patients who underwent an Antero-posterior (AP) chest, abdomen and skull X-ray examination. The resulted data were analyzed and compared with international dose references. For all studied radiographic examinations and all X-ray machines, the ESD increases with age. The lowest recorded radiation dose was from hospital 1 machine 2. In this facility ESD ranged from 19.93 µGy to 67.66 µGy for chest X-ray, from 39.03 µGy to 82.63 µGy for abdomen (AP), and from 35.47 µGy to 94.27 µGy for skull (AP). In contrast the highest dose levels are recorded from hospital 2 machine 1; the minimum ESD for chest X-ray is 247.51 µGy and the maximum is 2393.12 µGy; for abdomen X-ray the lowest ESD is 269.05 µGy and the highest value is 5106.15 µGy; and for skull X-ray minimum values is 430.96 µGy and the maximum value is 3072.77 µGy. In conclusion, for the considered pediatrics examinations, most of ESD values are within the international acceptable level and some are higher >100% .
اظهرت نتائج ابحاث تربوية اجريت في الولايات المتحدة الامريكية ان تدريس مادة الاحياء يعتمد على حفظ المصطلحات والمفاهيم العلمية دون فهم واستيعاب لها، كما ان الاساليب والطرائق التدريسية المتبعة تقليدية وتؤكد على الجوانب الشكلية والنظرية والحفظ والتلقين. (عايش،1999،ص8).
واشارت دراسة في وزارة التربية العراقية ان مادة الاحياء تشارك بعض المواد الاخرى في صعوبتها في المرحلة
... Show MoreAljazri made an effort to prominence the scientific rank of
reporters through transfer accurate expressions reflects the
heighest ability of reporter . these opinions are often of the
translator's companions or of his students who heard and studied
from him . Their phrases are included in the translator's edited.
Most of the time, they are brief phrases that indicate precise
meaning
Management is considered as most important resource of the society ones in modern era and an exchange
point in societies’ lives in order to achieve its goals and wishes. So far, management behinds the new
electronic society has become different in shape and nature due to the force of the nature of information
technology that shapes the relationships between the world’s individuals at the national level but it goes
beyond the international ones. The study aims at identifying the impact of the electronic management’s
components upon the improvement of the quality of nursing care in Baghdad’s hospitals. The descriptive
design, with a sample-survey approach, is used as appropriate ones for the field study of social
جهن آشبيري ىه شاعر ما بعد الحداثة كتب قريدة " صهرة شخرية في مرآة محدبة " في عام .3791 يعد الفن والتأمل الذاتي عنررين ميمين في األدب ، كما تم تقديمو في قريدة آشبيري ، وتبين أن نيجو النقدي تجاه الفن والتأمل الذاتي كان مركز جذب من عقهل ما بعد الحداثة خالل عرره ، الذي انخرط في نقد عمل آشبيري بدبب طبيعتو المربكة أو كتابتو. إحدى سمات شعراء ما بعد الحداثة ىي انخراطيم في االنعكاسية الذاتية والتناص. من خالل ىذه العناصر ، ينقل
... Show MoreThe Decision Making Process (DMP) is considered the vital from the point of view intellectuals. That is because of its effect on performance and the level of productivity of the workers in any organization. In the educational organization in particular, it plays a pivotal role in the technical, managerial and supervision fields. In addition to the productivity there was a great effect on the moral of the workers in all part of the organization, self respect and the problem solving approach to all work difficulties and challenges. All that leads to a better working environment where goals are achieved in a collaborative effort.
According t
... Show MorePoetry occupied a prestigious position for the rulers in AlAndalus, especially the state of the sects in which the kings, who
were originally poets, ruled. This is why they made the poets
close to them, and their court was never empty of them, they
even specified a day in which valuable gifts were given to them.
Poems of praise and love were written,
The 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 revolution of technology in the 21st century has changed radically the
climate of opinion concerning second language education. In order to excel in
today’s world, teachers and learners need to adopt new roles and be equipped with
new skills and competencies that go beyond the basic ones of listening, speaking,
reading, and writing; skills that cannot be gained if teachers teach mere academic
subjects, and students are evaluated on how well they have learnt the minute sub
skills in those content areas.
This session will touch upon several skills which may be considered the
new basics of the 21st century. Among these skills are: autonomy, active learning,
critical thinking, cooperative learning, and digita
The civil war in Seralion is considered as complex model of internal
conflicts in Africa because link to crises have relation to political, economical ,
social and cultural conditions, which were infected by disability and paralysis
in function performance, and what have effect on Seralion's relation
internationally or regionally.
In this research discussed three parts, the first is the factors of rise civil
war in Seralion , the second indicated the effected determiners in civil war in
Seralion , the third shown the factors of put end to civil war in Seralion .
The research concluded to significant reality that civil war in Seralion had
strategic effects on regional or international relations .