A simple physical technique was used in this study to create stable and cost-effective copper oxide (CuO) nanoparticles from pure copper metal using the pulsed laser ablation technique. The synthesis of crystalline CuO nanoparticles was confirmed by various analytical techniques such as particle concentration measurement using atomic absorption spectrometry (AAS), field emission scanning electron microscopy (FE-SEM), the energy dispersive X-ray (EDX), and X-ray diffraction (XRD) to determine the crystal size and identify of the crystal structure of the prepared particles. The main characteristic diffraction peaks of the three samples were consistent. The corresponding 2θ is also consistent, and the cytotoxicity of the nanoparticles was also investigated. After 24 hours of exposure, the percentage of cytotoxicity was calculated. The maximum toxicity of Hep-G2 was 37.81% at the maximum concentration of (500) µg mL-1 after 24 hours of exposure. Also, the maximum toxicity of the normal cell line was 27.85% at a maximum concentration of (500) µg mL-1.
Dying poetry ,last felt the man to say apriorior improvisation during entry in to the
context of the death while going through it, or distracted by the death , before the soul went
out the duration of a brief may not exceed the minutes , with out pious or pen or vain , may
have been exercised in his daily life, compelled or for the benefit.
The discussion dealt with the meaning of dying, then presented its article with three
topics;
First; What was said in accepting the death.
Second; what was said in the reguest fo death.
Third; what was said to ignore the death.
This lesson as well as poetry style andcream and the imeanings and ideas and nages and
rhetorical rhythm. To achieve this, adopted solid sources a
In recent years, the attention of the international community and intergovernmental and non-governmental organizations has grown into a new dimension of population displacement, called displacement within the country as a result of conflicts and the expansion of tacit groups, using sentences to describe such conflicts as "identity-based conflict", "ethnic conflict" "Sectarian conflict", in an attempt to determine the nature and characterization of those conflicts. In such conflict-stricken conditions, the value of a citizen - a person not directly involved in the conflict - is measured by the potential gains that that person has made to the conflicting parties, as civilians have been indirect victims of military operations, Favor
... Show Moreالتعريف بالبحث
اهمية البحث والحاجة اليه :.
اللغة وظيفة اساسية الا وهي التواصل ولقد زدادت الحاجة في هذا العصر الى تعلم اللغات والاحاطة بها اكثر من اي وقت مضى يوصفها الاساس الذي يعتمد عليه في تعلم المواد الاخرى .
فاللغة اداة التفكير ونشر الثقافة في بلدان كثيرة مثل بلاد الاندلس التي اشرقت منها الحضارة في ا
... Show Moreيهدف البحث الى دراسة وتحليل التمويل الأخضر كأحد المفاهيم الاساسية والحديثة في عالم الاعمال والاقتصاد العالمي وخاصة بعد الازمات والتحديات التي توالت على العالم نتيجة الكوارث الطبيعة وتغييرات المناخ والضغوطات على الموارد الطبيعية والتي أدت الى احداث اثرا كبيرا في اقتصاديات الكثير من الدول ، مما اضطرت الى إعادة النظر في مشاريعها وانشطتها الاستثمارية بما يوائم وطبيعة البيئة ومتغيراتها ، لذا تحتم اختيار لمثل
... Show MoreThe spectacular film is a type of feature films which has specific elements that contribute in increasing the aesthetics of the shape in its structure. The researcher started studying this type of films by researching the spectacular film concept, the history of its development, who are its most important stars and then tackling the Indian cinema represented by Bollywood, which is considered a school for this type of film. The researcher addressed the most important influential elements that entre in its production as well as studying these elements that contribute to building the shape including the configuration, movements of cameras, lenses, the lighting, colors, costumes etc. and what influence they have in forming a special aestheti
... Show MoreAbstract:
Due to the importance of technology and the accompanying changes of the environment affecting companies that use the technology mainly in their work, especially as most companies live in an unstable dynamic environment, which motivated the researchers to choose the International Company for smart card (Keycard) as a field of research and find ways to them to face Those changes.
The problem of the study was "limited attention to the components of technological change", which included research and development, innovation and information technology, which had an impact on the design decisions of the process (process selection, cust
... Show MoreThe research presented to the concept of social isolation through the manifestations of that concept and its works within the theatrical presentation space, and the diversity of directing experiences that the theatrical field benefited from, as contemporary data that contributed to the production of theatrical speech engaging with various levels of different form and content, and this was revealed through the chapters of the research that included The first chapter (the systematic framework), the second chapter (theoretical framework), which included the first topic (formations of social isolation), the second topic (social isolation in the world stage), and resulted in indicators including:
1- Postmodernism produced intellectual appr
A problem of solid waste became in the present day common global problem among all countries, whether developing or developed countries, and can say that no country in the world today is immuning from this dilemma which must find appropriate solutions. The problem has reached a stage that can not ignore or delay, but has became a daily problem occupies the minds of ecologists, economists and politicians took occupies center front in the lists of priorities for the countries in terms of finding solutions to the rapid scientific and radical them. and that transport costs constitute an important component of total costs borne by the municipal districts in the process of disposal of solid waste, so any improvement in the
... Show MoreThis article examines the usage features of the phraseological units in Russian political discourse and the peculiarities of the phraseological units’ usage by politicians in their speeches. The main focus is on the expressive and pragmatic functions of using phraseological units in political texts due to their evaluative and expressive nature. The present article also examines the structural and stylistic changes of the phraseological units in political discourse. Moreover, the work provides examples from the speeches of the Minister of Foreign Affairs of the Russian Federation S.V. Lavrov. As a result, the author comes to the conclusion that phraseological units make it possible to establish a contact be
... Show More