OBJECTIVE To assess quantitatively sleep medicine services in Saudi Arabia (KSA) and identify obstacles that face specialists and hospitals and preclude the establishment of this service. METHODS A self-administered questionnaire was mailed to 53 major governmental and private hospitals in KSA on September 2005. The response rate was 69.8%. Data were coded and analyzed. RESULTS The survey i...

A human adenocarcinoma-associated antigen (KSA) defined by the monoclonal antibody KS1/4 has become the focus of several site-directed strategies for tumor therapy. KSA, a 40,000 Da cell surface glycoprotein antigen, is found at a high density in all adenocarcinomas examined to date and in corresponding normal epithelial tissues. Here we describe the cloning and sequencing of overlapping comple...

in this study, we investigated the causes behind increase trends in smoking and extent of tobacco use in saudi arabia. we also explored the issues related to and its impact tobacco control research and policy in the kingdom.data were collected from various published articles, public data based such as who, geneva and cdc atlanta. data were also obtained from surveys conducted by various institu...

AIM To use a novel computational approach, Key-string Algorithm (KSA), for the identification and analysis of arbitrarily large repetitive sequences and higher-order repeats (HORs) in noncoding DNA. This approach is based on the use of key string that plays a role of an arbitrarily constructed "computer enzyme". METHOD A cluster of novel KSA-related methods was introduced and developed on the...

OBJECTIVE To calculate the h-index for neurosurgeons in the Kingdom of Saudi Arabia (KSA), and to assess its association with a number of features relating to neurosurgical practice in KSA. METHODS The h-index for 84 neurosurgeons that worked in KSA during 1990-2013 was evaluated using Google Scholar during the period September to October 2014. The correlation between the h-index and a number...

BACKGROUND Shammah is a traditional form of chewing tobacco [smokeless tobacco, (ST)] that is commonly used in the Middle East especially in Saudi Arabia (KSA), Yemen and Sudan. The Substance Abuse Research Centre (SARC) at Jazan University noted that no adequate research and information on the prevalence of shammah use in the province of Jazan, and KSA as well, has been provided in the scienti...

Regioselective [2+2] cycloaddition of ynones or ynoates to siloxy(trialkoxy)ethene (KSA) is described. A siloxy group on the KSA directs the perfect regioselectivity, allowing rapid construction of various functionalized cyclobutenedione derivatives.

Here we study a weakness of the RC4 Key Scheduling Algorithm (KSA) that has already been noted by Mantin and Mironov. Consider the RC4 permutation S of N (usually 256) bytes and denote it by SN after the KSA. Under reasonable assumptions we present a simple proof that each permutation byte after the KSA is significantly biased (either positive or negative) towards many values in the range 0, . ...

OBJECTIVES To identify the changing trends and crucial preventive approaches to road traffic accidents (RTAs) adopted in the Kingdom of Saudi Arabia (KSA) over the last 2.5 decades, and to analyze aspects previously overlooked. METHODS This systematic review was based on evidence of RTAs in KSA. All articles published during the last 25 years on road traffic accident in KSA were analyzed. Thi...

AMAR KHOUKHI∗,‡, MUNIRUDEEN OLOSO∗,§, MOSTAFA ELSHAFEI∗,¶, ABDULAZEEZ ABDULRAHEEM†,‖ and ABDULAZIZ AL-MAJED†,∗∗ ∗Systems Engineering Department King Fahd University of Petroleum and Minerals, Dhahran, KSA †Petroleum Engineering Department King Fahd University of Petroleum and Minerals, Dhahran, KSA ‡[email protected] §[email protected] ¶[email protected] ‖[email protected] ∗∗aamajed@...