Free cement refractory concrete is a type of refractory concrete with replacing alumina cement by bonding materials such as white kaolin, red kaolin and fumed silica. The free cement refractory concrete used in many applications like Petrochemicals, iron furnaces and cement production industries. The research clarifies the effect of steel fibers with two types crimped steel fibers and hooked steel
fibers with percentages 0.5%, 1% and 1.5% by volume from weight of bauxite aggregates. The additions of steel fibers with two types gave good properties in high temperatures where the specimens keep the dimension without failure and the properties made the best. the percentage of increasing for thermal conductivity was 44% for 1.5% crimped

The present investigation considers the effect of curing temperatures (30, 40, and 50˚C) and curing compound method on compressive strength development of high performance concrete, and compares the results with concrete cured at standard conditions and curing temperature (21˚C). The experimental results showed that at early ages, the rate of strength development at high curing temperature is greater than at lower curing temperature, the maximum increasing percentage in compressive strength is 10.83% at 50C˚ compared with 21C˚ in 7days curing age. However, at later ages, the strength achieved at higher curing temperature has been less, and the maximum percentage of reduction has been 5.70% at curing temperature 50C˚ compared with 21

There are many teacher and parents suffer from reduce the ability of attention to the children, so the attention not settle on nothing not only to minute for time, so the research aim to following: 
1-Is the using the positive reinforcement lunch in take attention of kindergarten visual? 2-1-Is the using the positive reinforcement article in take attention of kindergarten visual? 3-1-Is the using the positive reinforcement symbol in take attention of kindergarten visual? 4-1-Is the using the positive reinforcement action in take attention of kindergarten visual? 5-Is the using the positive reinforcement socialization in take attention of kindergarten visual? 6-what the most percentage obtain of the six factors of take attention?

Developed the study idea to harvest torrential rains from the plateau of Western style economic cost little help to get the amount of water may exceed 2 billion m 3 per year (depending on the amount of rainfall in that year) has been exploited for agricultural projects or add water to the lakes and rivers. Adopted at the product issued by the oil company, the center (Daura Filtered) reduces the ability of soil to absorb and filter rain water to as much as possible and raise the proportion of surface runoff in addition to this that the product environment-friendly fades and evaporates within 3 years and recognized him in the states was used Successfully.

The Regression analysis is considered as a basic element of statistics science elements, and it is an important style of applied statistics when studying different social and economical phenomena. As well as it is considered the most statistical method used in different sciences and fields, and it determines in clear picture the relations among the variables in the form of equation replaced from the degree of parametric on the strength and the importance of this relationship .And ;also it repots the degree of prediction and response ;also ,it is necessary in regression planning and making decisions for finding regression equation .And it is one of modern styles which tak observable caring especially in artificial neural networks. Our main

This research endeavors to clarify the relationship between the general policies of the country and Civil Organizations (Cos). This requires that we first identify the concepts of making polices on the one hand, and of COs on the other hand. Initially, polices starts as personal ideas that are, later, turned by some groups of people into suggestions. When the governments adopt these suggestions, they become state policies as shown by the following: Idea ----------> Suggestion--------> Policy. COs are groups of free voluntary organizations acting to bridge the gap between the state and the public, and to respond to the latter's demands. The organizations includes, among others, trade unions and professional associations. In oth

Literature historians and researchers almost agree that literature is a product of the environment and it is the product of interaction of events and it affected by the direction of that environment and then the literature affects the its environment and the modern science confirms this fact until make the environment competes hereditary factor in its effect because that each environment has its characteristics which affect the literature and leaves its effect on it and even when a writer exaggerate in its monopolize and tyranny of selfin its literature, he cannot be away from affection by including around of literature because the literature is the mirror that reflects aspects of the environment. In other words, literature is expression

Change the properties of the river hydrological and geomorphological during his career from its source to its mouth depending on the variables may be quick effect and short-term, addressed the study put the Tigris River geomorphological and hydrological and environmental in the city of Baghdad and found that most of the manifestations geomorphological indicate that the river enters the aging in the area were not so previously evidence suggests hydrological and environmental river that entered this stage long ago may be an extraordinary period. He found that the cross sections and locations of erosion and sedimentation size and type of flow patterns may change with moderate values to patterns with relatively abnormal values for the river.

Antiviral medications may be the best choices for COVID-19 treatment until particular therapeutic treatments become available. Tamiflu (oseltamivir) is a neuraminidase inhibitor licensed for the management and defense against influenza types A and B. Oseltamivir-based medication combinations are currently being used to treat COVID-19 patients who also have the new coronavirus 1 SARS-CoV-2. 1 Oseltamivir administration was related with a less time spent in the hospital, quicker recovery 1 and discharge, and a decreased mortality rate. Docking is a modern computational method for identifying a hit molecule by assessing the binding ability of molecular medicines within the binding target pocket. In this work, we chose 21 ligand compounds that