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مصادر التضخم في المملكة العربية السعودية (دراسة قياسية باستخدام مدخل اختبارات الحدود)

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 Publication date 2009
and research's language is العربية
 Created by Shamra Editor




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References used
Barro, R., and Gordon, D. (1983). Rules, discretion and reputation in a model of monetary policy. Journal ofMonetary Economics, XII, 101–121
Barro, R. (1991). Economic growth in a cross section of countries. Quarterly Journal of Economics, 407–443
Bernanke, B. (2005). Inflation in Latin America—ANew Era? paper presented at the Stanford Institute for Economic Policy Research Economic Summit, February
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يهدف البحث إلى تقدير دالة الطلب من الواردات الكلية للمملكة العربية السعودية باستخدام منهجية التكامل المشترك و تجزئة تباين خطأ التنبؤ و دوال نبضات الاستجابة المبنية على نموذج تصحيح متجهات الخطأ. و قد دل اختبار التكامل المشترك على وجود علاقة توازنية طويلة الأجل بين الواردات و الناتج المحلي الإجمالي و الأسعار النسبية للواردات و الائتمان المصرفي لتمويل الواردات. كما دلت تجزئة تباين خطأ التنبؤ و دوال نبضات الاستجابة على أهمية الناتج المحلي الإجمالي، و الأسعار النسبية للواردات، و الائتمان المصرفي لتمويل الواردات في تفسير التقلبات في دالة الواردات الكلية. و أشارت دوال نبضات الاستجابة إلى العلاقة الطردية بين التقلبات في الناتج المحلي الإجمالي و الائتمان المصرفي لتمويل الواردات و التقلبات في الواردات، في حين كانت العلاقة عكسية بين التقلبات في الأسعار النسبية للواردات و التقلبات في الواردات.
This study aimed at investigating the image of women in Arabic language and social studies textbooks of primary and middle stages through the roles of women, the different social aspects and social status presented in the textbooks of Arabic langu age and social studies.
The present study aimed to evaluate the productinty status of panicum turgidum (Thumam) under the environmental conditions of the eastern province of Kingdom of Saudi Arabia. Forty eight experimental sites (each of 25 m2, i.e. 1*25 m) were randoml y selected from three locations (Roads of Riyadh, Ogair and Damam), which represent the micro-environment of thumam. Obtained results showed that the dominated plant species associated with thumam were Eragrostis barrelieri, Haloxylon salicornicum, Leptadenia pyrotechnica, Plantago ovata and Zygophyllum coccineum. The forage production of thumam was 57 kg dry matter/ha. However, the nutrient value of it was relatively low due to the low protein content (4.2 %) and high crude fiber (30.2 %). Moreover, neutral detergent fiber was 62.4 %, acid detergent fiber was 65.4 % and lignin was 11.70 % which indicate low nutritional forage value, compared with traditional forage crops, i.e. Rhodesgrass (Chloris gayana) and Alfalfa ( Medicago sativa). Macronutrient contents (Na, K, Ca and Mg) were in the range of sheep and camel requirements, while P was very low as well as micronutrients (Zn, Cu and Mn).
The Al-Hassa oasis at the Kingdom of Saudi Arabia is an agricultural area depends on irrigation associated with a drainage network with three main drainage canals. Two of them, the D١ and the D٢, cover most of the oasis total area (٢٠،٠٠٠ ha) whil e the third one (the D٣) covers a limited area. This study aimed to examine the spatial variability in the concentrations of NO٣ - and PO٤٣- in the drainage water of the D١ and the D٢ canals.
This study aimed at investigating the effect of a computerized programme on changing alternative concepts in science among second intermediate grade students in the Kingdom of Saudi Arabia in “motion and sound units”. A puroseful sample of (90) st udents was selected and students were randomly assigned to two groups: the experimental group which was taught “motion and sound” by the computerized programme, and the control group which was taught the same two units by the traditional method.
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