The conservation of natural resources such as water is one of the areas that sustainable agriculture seeks to preserve, rationalize its use and protect it from pollution, because water is a specific factor for agriculture. Despite Iraq's possession of two international rivers, the Tigris and the Euphrates, which pour into the Shatt Al-Arab, it suffers from water shortages in recent times, As a result of several reasons combined, including water policies initiated by the riparian countries to reduce the quantities of water coming from the two rivers to Iraq, led by neighbor Turkey through the construction of dams and reservoirs and the establishment of irrigation projects, as well as climate changes from rising temperatures and low fall rate that Iraq falls within Arid and semi-arid areas, and the increasing demand for water in all the magazines, including agriculture as a result of the increase in population, water problem has become a water crisis worsens over time, which affected the process of agricultural production and the delay of achieving sustainable agricultural development, as there is an inverse relationship between them and the water crisis, In order to solve this problem, it is necessary to know the real causes of the crisis and find solutions and appropriate treatment, The researcher concluded that the nature of the water problem is that the water supply is less than the demand for it, and to solve this problem is either increase the water offered in exchange for demand or reduce the demand for the amount offered. The study proposed a set of solutions, including the formation of a high committee for water management in Iraq, which will prepare strategic water plans and spread modern irrigation techniques throughout Iraq, and resort to supplementary irrigation such as the use of water harvesting and the construction of dams and reservoirs after the identification of actual water needs and the establishment of educational awareness campaigns for producers and ideas on holding talks with riparian countries to increase the levels of the Tigris and Euphrates River according to economic policies that satisfy all parties. The research reached some conclusions, including that the degree of the causes of the crisis The most severe of which is poor water management and the lack of integrated management
Abstract
This work deals with a numerical investigation to evaluate the utilization of a water pipe buried inside a roof to reduce the heat gain and minimize the transmission of heat energy inside the conditioning space in summer season. The numerical results of this paper showed that the reduction in heat gain and energy saving could be occurred with specific values of parameters, like the number of pipes per square meter, the ratio of pipe diameter to the roof thickness, and the pipe inlet water temperature. Comparing with a normal roof (without pipes), the results indicated a significant reduction in energy heat gain which is about 37.8% when the number of pipes per m
... Show MoreThis research is an attempt 0f discovering an advice and mention kinds of politics with administration sides through the Umayyad era in the way of showing it which had directed to successors and princes in the state , whereas this subject did not take the chance , as historian research which dealt with this advice through the continuous period after the early Islam and Umayyad era
المعارضة في الاسلام
في المعادلة السياسية
The purpose of the description of the source in some grammarians is exaggeration, and many examples in the Koran, it is news of the source about the self, the Almighty says: What the Kufa gurus used to direct the description of the source on the interpretation of the derivative, and Basrah on the added estimate. The ancients and modernists agreed on the importance of the context of the sentence and its effect in raising the ambiguity, determining the meaning, and not content with the manifestation of the word and its connotations in isolation from the denominator. Raising and erecting in the adjective "means that the prescribed is known as a known fact or claim.
Background: The apical seal is the single most important factor in determining the success of surgical endodontics, the aim of this study was to compare the sealing ability of Mineral Trioxide Aggregate in three different cavity designs. Materials and Methods: Thirty extracted human single-rooted teeth were divided into three groups of ten teeth per group, a retrograde cavity preparation was carried out using a low speed handpiece and round bur with parallel walls in the first group, ultrasonic retrotip and unit in the second group and a low speed handpiece with a carbide inverted cone bur with undercuts in the third group, all the cavities were filled with MTA. microleakage was measured by dye penetration technique using methylene blue. Re
... Show MoreIntegrating Renewable Energy (RE) into Distribution Power Networks (DPNs) is a choice for efficient and sustainable electricity. Controlling the power factor of these sources is one of the techniques employed to manage the power loss of the grid. Capacitor banks have been employed to control phantom power, improving voltage and reducing power losses for several decades. The voltage sag and the significant power losses in the Iraqi DPN make it good evidence to be a case study proving the efficiency enhancement by adjusting the RE power factor. Therefore, this paper studies a part of the Iraqi network in a windy and sunny region, the Badra-Zurbatya-11 kV feeder, in the Wasit governorate. A substation of hybrid RE sources is connected to this
... Show MoreBackground: The use of Miswak, chewing sticks (salvadorapersica) can be traced back to Babylonians some 7000 years ago. It is commonly used throughout the world especially for the purpose of oral hygiene. Muslims are using as the religious view. Current study aimed to test the ability of aqueous siwak extract to increase the resistance of enamel surface against acid dissolution compared to sodium fluoride. Materials and Method: Twenty maxillary first premolars were treated with the selected solutions included two aqueous siwak extract concentration(5%,10%) and sodium fluoride(0.05%)as control positive for 2 minutes once daily for 20days interval, de ionized water was used as control negative. The concentration of the dissolved phosphorus i
... Show MoreBackground: Speckle tracking echocardiography (STE)-derived mitral annular displacement (MAD) utilizes the speckle tracking technique to measure strain vectors, which provides accurate estimates of left ventricular ejection fraction (LVEF).Objectives: To validate the accuracy of mitral annular displacement (MAD), assessed by Speckle Tracking Echocardiography (STE), as a surrogate for determination of left ventricular systolic function in comparison to 2-Dimensions Simpson method in patients with different heart diseases.Methods : This cross-sectional study included patients who referred to outpatient department of Ibn Albitar Center for Cardiac Surgery, Baghdad, Iraq, between October 2012 and April 2013. STE continuously tracked annular
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