Absorption, fluorescence, quantum yield and lifetime of rhodamine 6G in chloroform, methanol and dimethyl sulfoxide were measured. From a comparison of these quantities, with those for solid solutions (solid solutions are obtained by mixing constant volume proportions of dye at a concentration of 1*10-4M/l with different volume proportions from the concentrated solution of polymer in chloroform and dimethyl sulfoxide). The results showed that the addition of polymer to liquid concentrated solutions (1*10-4M/l )of rhodamine 6G dye from expecting [which leading to development active medium for laser dye at high concentration] increase the spectra shift toward high energies, and the luminescence quantum yield but decreasing radiative lifetim

This article is devoted to the stylistic and educational characteristics of the language of Russian diplomacy. The article describes the stylistic and educational aspect of the appearance of the Russian protocol, its relation to universal diplomacy, the relationship between the diplomatic language and the business sub-style. Here the semantic features of the diplomatic vocabulary are determined and the factors influencing its formation and the emergence of new terms in the language of Russian diplomacy are considered. The article also examines the national and cultural identity of the language of Russian diplomacy, provides rules for drafting diplomatic documents and conducting negotiations, defines the concept of a document as a whole, giv

ABSTRACT: Objectives: To study the level of knowledge , attitude and practice of primary health care providers about herbs , and their relation with certain demographic variables Methods : A cross sectional study was conducted using questionnaire administered to Health Care providers at ten Primary Health Care Centers in Baghdad. Results: Four handed participants were recruited, the most common source of knowledge in the medical group were books , while the paramedical group were getting their knowledge mostly from media, attitude of the medical group was neutral (53%) while among paramedical group attitude was positive (65%), the most common purposes for using herbs were energy boosting and preventive. Conclusion: healthcare providers in B

the present study is designed to evaluate the effect of low level laser irradiation on the immume system when administere intravenoisly

دور اللوبي الصهيوني في صنع السياسة الأمريكية

My study here is about the (possible for itself) features especially in the (Alashaira) opinion, also I touch to the other logicians opinions, I clarified these features concisely in the preface to be clear in front of the reader, I made it in two studies and five subjects.I talked about the meaning of the existence in the ((possible for itself) theme, and I clarified its types in the logicians and the philosophers' opinions, through which the existence and the nonexistence are equal in it, as it cannot be existed nor be nonsexist unless with a separated reason, and there is no necessity to oblige its existence, or its nonexistence is impossible.Then I talked about the outweighing of the (possible for itself) as one side  of the exi

 Drama is one of the means of transmitting human experiences, as it presents within it the life ideas and visions of the spectator, who is subject to their influence on him, robbed of the will in front of its charm and various display arts, which invade him with its dimensions and affect his references, and this art form is based on stories revolving around personalities involved in events that have grown As a result of the struggle of two conflicting opponents, or two opposing forces or emotions generated as a result of a voluntary conflict, as this dramatic conflict represents the most important elements of those events, as it is embodied in an inevitable scene that emerges from other scenes, and this scene is sometimes subject to the

Abstract Background: Crown lengthening is a surgical procedure that apically positions the gingival edge and/or removes supporting bone in order to increase the amount of supra gingival tooth structure for restorative or cosmetic purposes.

The objective of the study: The purpose of this study was to evaluate the efficacy of the 940nm diode laser in esthetic crown lengthening surgery through clinical observations, patient questionnaires, clinical photographs, and gingival healing following gingival operations. Material and methods: In this randomized clinical trial, 16 patients (11 females and 5 males) had their crowns surgically lengthened using a diode laser (940 nm) in continuou

Doppler broadening of the 511 keV positron annihilation ??? ? was used to estimate the concentration of defects ?? different deformation levels of pure alnminum samples. These samples were compressed at room temperature to 15, 22, 28, 38,40, and 75 % thickness reduction. The two-state ^sitron-trapping model has been employed. 'I he s and w lineshape parameters were measured using high-resolution gamma spectrometer with high pure germanium detector of 2.1 keV resolution at 1.33 MeV of 60Co. The change of defects concentration (Co) with the deformation level (e) is found to obey an empirical formula of the form Cd - A £ B where A and ? are positive constants that depend mainly on the deformation procedure and the temperature at which the def