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Riyadh, Saudi Arabia

Dar Al Uloom University is a university in Saudi Arabia. Dar Al Uloom University offers a wide range of programs for Saudi and international students. All programs offer academic training and are accredited by the Saudi Ministry of higher Education. Wikipedia.

Mnaouer A.B.,Dar Al Uloom University | Foh C.H.,Nanyang Technological University | Chen L.,Nanyang Technological University
Wireless Communications and Mobile Computing | Year: 2013

In this work, we present a new generic polymorphic routing protocol tailored for vehicular ad hoc networks (VANETs). Similar to the case of mobile ad hoc networks, the routing task in VANETs comes under various constraints that can be environmental, operational, or performance based. The proposed Polymorphic Unicast Routing Protocol (PURP) uses the concept of polymorphic routing as a means to describe dynamic, multi-behavioral, multi-stimuli, adaptive, and hybrid routing, that is applicable in various contexts, which empowers the protocol with great flexibility in coping with the timely requirements of the routing tasks. Polymorphic routing protocols, in general, are equipped with multi-operational modes (e.g., grades of proactive, reactive, and semi-proactive), and they are expected to tune in to the right mode of operation depending on the current conditions (e.g., battery residue, vicinity density, traffic intensity, mobility level of the mobile node, and other user-defined conditions). The objective is commonly maximizing and/or improving certain metrics such as maximizing battery life, reducing communication delays, improving deliverability, and so on. We give a detailed description and analysis of the PURP protocol. Through comparative simulations, we show its superiority in performance to its peers and demonstrate its suitability for routing in VANETs. © 2011 John Wiley & Sons, Ltd. Source

Azam A.,Dar Al Uloom University | Qiang F.,Chongqing University
International Journal of Electronic Business | Year: 2014

Some of the most electrifying advances in our economy right away are in the realm of electronic commerce. However, many issues associated with online world still pose serious challenges to the growth of electronic commerce and affect consumer behaviour to purchase online. In this study, we test constructs from behavioural study (decomposed theory of planned behaviour (DTPB)) and online retailer ethics (consumers' perception of online retailing ethics (CPEOR)) in an integrated theoretical framework of online consumer behaviour. Exclusively, we examine how attitude, subjective norms, perceived behavioural control (PBC) and CPEOR influence online consumers' intention to purchase online and actual purchase behaviour. An empirical investigation of online consumers' behaviour in China was conducted. Forward logistic regression was used for data analysis and results showed substantial support for most of the hypotheses proposed. Managerial implications and contributions of the study were also discussed. © 2014 Inderscience Enterprises Ltd. Source

Azam A.,Dar Al Uloom University
International Journal of Electronic Finance | Year: 2015

This paper attempts to report a study investigating the impact of personal innovativeness in information technology (PIIT) and social influence on user continuance intention towards mobile banking. A survey was conducted among undergraduate and graduate mobile banking users in a regional university. Logistic regression procedures were deployed to analyse valid data points. The study found that among well-educated mobile banking users, user personal innovativeness as measured by PIIT and perceived usefulness, the determinants of initial adoption, remain as strong determinants of user continuance intention. PIIT also remains as the antecedent of perceived ease of use. Social influence has changed the pattern of influence on mobile banking continuance intention. Copyright © 2015 Inderscience Enterprises Ltd. Source

Herbal medicines derived from plant extracts are being increasingly utilized to treat a wide variety of clinical disease. More attention has been paid to the protective effects of natural antioxidants against drug-induced toxicities especially whenever free radical generation is involved. Flavonoids have been found to play important roles in the non-enzymatic protection against oxidative stress, especially in case of cancer. This study aimed to investigate the alterations in biochemical parameters in serum which measure liver functions, kidney functions, serum lipids and proteins due to inhalation of gasoline and the protective effects of some natural products against gasoline toxicity. Green tea extract and powdered curcumin were chosen as antitoxicity natural products. CD1 mice were taken as experimental model. Mice were exposed to gasoline vapor 2 h/day for 3 weeks in inhalation chamber. The concentration of gasoline is 9375 ppm and the concentration of benzene is 100 fold less than gasoline in equilibrium with pure benzene being 93.75 ppm. The results concluded that: 1-Liver functions did not affect in all animal groups. 2-Increase in globulin concentration in serum was observed in gasoline group, this was lowered in the other groups. 3-Triglycerides in serum were increased by gasoline and returned near to normal control by green tea extract and curcumin addition to diet. 4-Growth rate per day was reduced with gasoline inhalation and ameliorated with curcumin, but hepatosomatic and spleenosomatic indices were not affected in all groups. © Asian Network for Scientific Information, 2016. Source

Elsayed A.S.I.,Dar Al Uloom University
Pakistan Journal of Nutrition | Year: 2016

Flavonoids have been found to play important roles in the non-enzymatic protection against oxidative stress, especially in case of cancer. Flavonoids are group of polyphenolic compounds that occur widely in fruit, vegetables, tea, cocoas and red wine. Flavonoids, including flavones, flavanone, flavonols, flavanols and isoflavones, are polyphenolic compounds which are widespread in foods and beverages and possess a wide range of biological activities, of which antioxidation has been extensively explored. This study aimed to investigate the protective and the ameliorative role of some natural products on non-enzymatic antioxidants. Green tea extract and powdered curcumin were chosen as antioxidant natural products. CD1 mice were taken as experimental model. Green tea extract was provided to mice as their sole source of drinking water and powdered curcumin was added to the diet, these were taken for four weeks. Total thiol, protein-bound thiol and nonprotein-bound thiol, were measured in brain tissue homogenate as non-enzymatic antioxidant. The results of the study concluded that, green tea extract and curcumin addition to diet ameliorate and increase the concentration of non-enzymatic antioxidants, specially protein-bound thiol. © Asian Network for Scientific Information, 2016. Source

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