Article history: Received October 1, 2011 Received in Revised form November, 14, 2011 Accepted 30 January 2012 Available online 20 February 2012 In this study, the backpropagation neural network (BPNN) is tested for the ability to forecast the daily volatility of two stock market indices from the Middle East and North Africa (MENA) region using volume; namely Morocco and Saudi Arabia. Volatilit...

Mutation Screening of the Factor VIII Gene in Hemophilia A in Saudi Arabia: Two Novel Mutations and Genotype-Phenotype Correlation Faisal A Al-Allaf1,2,3#, Mohiuddin M Taher3#*, Zainularifeen Abduljaleel3, Mohammad Athar3, Faisal A Ba-hammam3, Munir Abdulla3, Abdellatif Bouazzaoui3, Halah Abalkhail4 and Tarek MA Owaidah4* 1Faculty of Medicine, Department of Medical Genetics, Umm Al-Qura Univers...

(1) Mohamed Hassan Hammad (MD), Physical Medicine and Rehabilitation at King Fahad Specialist Hospital Dammam (KFSHD), Saudi Arabia. (2) Sherif Nasef (MD), Consultant rheumatology at KFSHD, Saudi Arabia. (3) Mohamed Yousry Elsammak (MD), Consultant Immunology Lab at KFSHD, Saudi Arabia. (4) Poovathumkadavi Mammunji Abduljaleel (MD), Consultant Radiology at KFSHD, Saudi Arabia. (5) Douaa M Mosal...

H S Mohamud1*, E AlGhamdi1, A F Alhetheel2, F M AlMajid3, A H Ahmed4, A M Somily2 and D H Mohamed2 1Transfusion Microbiology Department, King Khalid University Hospital Blood Bank, Riyadh, Saudi Arabia 2Pathology/Microbiology Division, College of Medicine, King Saud University, Riyadh, Saudi Arabia 3Infectious Diseases Division, College of Medicine, King Saud University, Riyadh, Saudi Arabia 4F...

Background: Aedes aegypti is the main vector of the yellow fever and dengue virus. This mosquito has become the major indirect cause of morbidity and mortality of the human worldwide. Dengue virus activity has been reported recently in the western areas of Saudi Arabia. There is no vaccine for dengue virus until now, and the control of the disease depends on the control of the vector. Objectiv...

This article includes a unique data set of a balanced daily (Monday, Tuesday and Wednesday) for oil and natural gas volatility and the oil rich economies' stock markets for Saudi Arabia, Qatar, Kuwait, Abu Dhabi, Dubai, Bahrain and Oman, using daily data over the period spanning Oct. 18, 2006-July 30, 2015. Additionally, we have included unique GAUSS codes for estimating the spillover asymmetri...

Retailers in Saudi Arabia have been reserved in their adoption of electronically delivered aspects of their business. This paper reports research that identifies and explores key issues to enhance the diffusion of online retailing in Saudi Arabia. Despite the fact that Saudi Arabia has the largest and fastest growth of ICT marketplaces in the Arab region, e-commerce activities are not progressi...