In this work the design and construction of optical pumping system was presented. The parameters of the pumping source to obtain discharge current density sufficient to shift the flash lamp spectrum towards uv portion of spectrum were measured.The current density was supplied to the flash lamp must be greater than 4000Amp./cm2 to obtain the spectral range wavelength lies between 0.2 and 0.35?m. The current density was obtained by a capacitor 50?F, at 7KV discharge voltage. The applied electrical energy to the flash lamp was more than 1200 J, and the current density was around 5000 Amp./cm2.The electrical parameters of the flash lamp were calculated. The impedance parameters(K0) from the voltage and the peak current pulse was measured in ran

Due to the availability of technology stemming from in-depth research in this sector and the drawbacks of other identifying methods, biometrics has drawn maximum attention and established itself as the most reliable alternative for recognition in recent years. Efforts are still being made to develop a user-friendly system that is up to par with security-system requirements and yields more reliable outcomes while safeguarding assets and ensuring privacy. Human age estimation and Gender identification are both challenging endeavours. Biomarkers and methods for determining biological age and gender have been extensively researched, and each has advantages and disadvantages. Facial-image-based positioning is crucial for many application

Among the duties of the state is to organize the lives of individuals in all respects, and among the categories that the state has to organize their lives are the category of new graduates who are looking for work, As a result of the conditions that accompany our dear country, such as the deterioration of economic life, the rise in unemployment, the inability of the state to recruit graduates as a whole, and the shortage that has appeared in the teaching staff in schools, especially those located in remote areas of the governorates, Studies have shown that there is a significant shortage of teaching staff, which prompted the state to create a new category, the category of free lecturers, and they are people who pledge to give free lectur

Back ground: Migraine is a common chronic episodic disabling primary headache disorder with associated Symptoms. The neuroendocrinological alterations, disorders of the hypothalamic-hypophysial axis are believed to be implicated in the pathogenesis of primary headache syndromes
Objective: The aim is to determine the effect of sex hormones on migraine.
Patients and methods: Twenty seven adult patients with migraine and 20 controls were assessed for prolactin,testeron,,LH,FSH were tested with immunofluorometric assay.
Results: This study found that migraine is associated with elevated level of FSH, prolactin and testerone P= (<0.05), (<0.05) and (<0.05) respectively .however there was no significant association between LH

E-learning seeks to create an interactive learning environment between the teacher and the learner through electronic media conveying in more than one direction, regardless of how the environment and its variables are identified. It also develops skills necessary to deal with technology in order to be able to take into account the individual differences between them and helps e-learning teacher and learner to achieve the goals set in advance and identify educational objectives in a clear manner. The research aims to identify e-learning in its benefits and management systems. It has three sections dealt with in the current research. Chapter II concentrates on the research Methodology, which consisted of three sections: The first s

We notice that the issue of development is one of the most important issues in ourepoch especially in our country which classify within back ward countries.

When we talk here about the development we don’t mean only the development of capitals or the development of products.but the most important thing is the development of mind .if we notice the experience of  developits economy and it didn’t reach to the wanted aim.because these sides .  The highness of the meutal rate of the nation is the standard of of the nation is the standard of the sentific and cultural advance for this nation .And that is what we have noticed in human societies ingenerall .

We noticed that

solid state reaction technique (SSR) was used to prepare high-Tc phase in superconductors the effect of additional Pb to was investigated it has been found

It is not often  easy to identify a certain group of words as a lexical bundle, since the same set of words can be, in different situations, recognized as idiom,  a collocation, a lexical phrase or a lexical bundle. That is, there are many cases where the overlap among the four types is plausible. Thus, it is important to extract the most identifiable and distinguishable characteristics with which a certain group of words, under certain conditions, can be recognized as a lexical bundle, and this is the task of this paper.