In this paper, magnesium oxide nanoparticles (MgO NPS) have been prepared and characterized and its concentration effect has been studied on polymers surface (MgO NPS). The results showed that the degradation of poly methyl methacrylate increased when using such metal oxide. The results also showed that the metal oxide increased the degradation of poly methyl methacrylate. X-ray diffraction, scanning electron microscopy, atomic force microscopy were used to study the morphological characteristics and size of nano MgO particles analysis. Films were prepared by mixing the different masses of MgO NPS (0.025, 0.05, 0.1, 0.2 and 0.4) % with a polymer solution ratio (W/V) 7 %. Photo- degradation rate was monitored irradiation’s time by measuring the incident frequency of the index value of the hydroxyl coefficient of growth (IOH) at fixed film thickness and constant concentration. Spectrophotometry (IR, and UV. Visible) techniques were used to determine the change in the intensity of the spectrum bundles.
The pleomorphic adenoma is a benign salivary gland tumor, presenting usually in the parotid gland. This case report describes an unusual case of 29 years old female with a single, nodular swelling evident in the upper lip which was diagnosed as pleomorphic adenoma of the minor salivary glands in the upper lip .The lesion measured 1.0 x 1.0 cm in size for 2 years duration cause depression of labial cortical bone apical to lateral and canine teeth. It is characterized by slow growth. Complete excision was performed and the histopathological analysis supported by immunohistochemistry showed pleomorphic adenoma .It did not recur 18 months after operation.
Al- belenoby , Andalusian obscure poet .I choose to study poetic rhythm in this poetic and the appropriateness of with what rhythm touring in his self to give beautiful meaning raise to receiver to put the hands of continental placements creativity in poetry .I divided my research into ideas are presented in a sequential manner , I started researching with poetic rhyme than rhyme they represent the form of the poem, they represent the external form of the poem and their music that farm the general concept then the rhetorical styles that represent the internal form of the poem and it music that the listener works and enjoying it part by part all this led to the put the hands of the receiver placement creativity in Belenoby Poet.&nbs
... Show MoreSmoking is one of the biggest pests in societies and is one of the main threats to human health as the problem goes beyond the smoker and the non smoker around it and is transmitted through the air and produces what is known as passive smoking.
Scientific studies and medical research confirm that at least 90% of patients with oral, pharyngeal, laryngeal, and other cancers are among smokers. It is known that the risk of these cancers among smokers increases as the amount of smoking increases. That the incidence of these malignant tumors among smokers rises between 6 to 10 times the incidence in non-smokers, Recent scientific research has proved beyond doubt that tobacco contains precursors, active carcinogens, activated cancer cel
... Show MoreThis research aims to identify the vigilant personality of University teachers in term of gender. To this end, the researcher used the scale of Al-tememe (2017) for the vigilant personality, the scale was administered to the sample of the study which was (100) male and female teachers. The results have shown that university teachers generally have a vigilant personality, as well as the result showed a difference between male and female teachers on the level of vigilant personality in favor of males. In the light of these results the researcher has come with a number of recommendations and suggestions.
The product of rn-paracompact and rn-strongly paracompact are briefly disc. ussed.
The bony pelvis has a major role in weight transmission to the lower limbs. The complexities of its geometric form, material properties, and loading conditions render it an open subject to biomechanical analysis.
The present study deals with area measurement, and three-dimensional finite element analysis of the hip bone to investigate magnitudes, load direction, and stress distribution under physiological loading conditions.
The surface areas of the auricular surface, lunate surface, and symphysis pubis were measured in (35) adult hip bones. A solid model was translated into ANSYS parametric design language to be analyzed by finite element analysis method under different loading conditions.
The surface
... Show MoreThe investment contract that has a foreign element is considered amongst the contracts that have their legal and international economical weight, for what it represents in all countries’ economies, and achieving progress in many fields that investment has its effects on their growth and establishment as its at the centre of everyone’s attention. As well as that the variety in opinions and the presence of differences in the contents of these contracts, and the confusion between them and other international contracts, and the considerable interest jurists have in them have all led to not having a legal definition for them, as most definitions the describe them are more economical than they are legal, and the reason for that is that law
... Show MoreBackground: Prechordal plate is important midline structure in the head region. It has been shown that it plays a bivotal role in the development of the brain and the eyes.
Aim of study: There is confunsion, in the literatures and textbooks concerning of terms: prechordal plate, prechordal mesoderm and the Buccopharyngeal membrane. The aim of this work is to study is based on histological changes of the early stages of the chick embryo hoping to illuminate these aspects especially after the recent revival of attention to the importance of this region in the process of induction of the brain region of the newral tub & the development of the prosencephalon & the eyes as shown by genes activities & expression in the prechorda
Our country faced lots of crises specially Wars and still living under the traumatic events. This would result in psychological disorder specially the Acute Stress Disorder (ASD). That’s if not treated, it will turn to be over Post Traumatic Stress Disorder(PTSD). Also not mentioning the shortage of recourses speaks about war and crises. That treat with its inflections psychologically and sociologically theses cases if happened.
The importance of this study arise through it is objective to introduce a program for EMDR which give benefit for treat in health, social, educational institutes.
Aims:
The objective of this Study is the identification of a Test the effectiveness of Eye Movement Desensi
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