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Papers by King Aziz

The present-day tectonics of the Northwestern Region of Saudi Arabia is affected by the tectonics... more The present-day tectonics of the Northwestern Region of Saudi Arabia is affected by the tectonics related to the Red Sea floor spreading. The tectonic movemets related to the Red Sea floor spreading creat great variations in the crustal structure and depth of Moho discontinuity through this region. Gravity data have been acquired from Earth Gravitional Model (EGM-2008) and analyzed to estimate the crustal thickness under this region. 2-D gravity modeling have been conducted along eleven profiles oriented ENE-WSW and NW-SE to verify the lateral variations of the crust and mantle beneath these profiles. Accordingly, the upper layer of the crust is represented by sedimentary rocks underlying by basement layer that extends until the Moho discontinuity. The crustal thickness increases eastward,and the depth to the Moho is 25 km in the western part, along the Red Sea and increased upto 38 km through the Arabian Shield. These results are in agreement with the previous deep seismic and seis...

Submitted: Jun 9, 2013; Accepted: Jul 22, 2013; Published: Jul 28, 2013 Abstract: The principal g... more Submitted: Jun 9, 2013; Accepted: Jul 22, 2013; Published: Jul 28, 2013 Abstract: The principal goal of this study was to investigate the protective role of pumpkin seed oil (PSO) and vitamin E (Vit E) against sodium valproate (SVP)-induced testicular damage in male rats. Forty five adult male rats were randomly distributed into 5 groups, of 9 animals each. Group (1) was given orally 1ml distilled water/rat and used as negative control and group (2) was orally given SVP (500 mg/kg/day) during the last week of experiment period to induce testicular damage and used as positive control. The other three protected groups were pretreated by oral administration of PSO at a dose of 40 mg/kg, Vit E at 200 mg/kg and PSO with Vit E respectively for 8 weeks and received SVP during the last week. Blood samples were collected for estimating serum levels of testosterone, Follicle – stimulating hormone (FSH) and Luteinizing hormone (LH). Semen samples were collected for semen analysis. Rats were th...

Purpose: This study aims at highlighting the significance and importance of utilizing MKIS in dec... more Purpose: This study aims at highlighting the significance and importance of utilizing MKIS in decision-making, as well as to describe the process of decisions taken by decision maker using MKIS. The study also aims to lay out the necessary requirements for the successful implementation of MKIS in decision-making. The study conclude that the roles for computerbased support for developing marketing strategy present a real challenge to individual computer-based techniques and technologies in the dynamic environment. A single support technique cannot meet the broad requirements of the new roles, and can only fit some of them. Each technique has specific benefits that make it suited to certain problems but not to others. While individual intelligent techniques have particular strengths, they also have specific weaknesses. These weaknesses raise the need for developing a hybrid intelligent system, where two or more techniques or technologies are combined to overcome the weaknesses of indi...

Immuno-labelled techniques (ILTs) depend on linking of a specific antibody to a labelling materia... more Immuno-labelled techniques (ILTs) depend on linking of a specific antibody to a labelling material. The so-produced conjugate is utilized to detect or assay a specific reactant against which the antibody, in the conjugate, is directed. Many labelling materials have been conjugated to specific antibodies. The most commonly used labels included enzymes, avidin-biotin, radioactive materials, fluoriscin dyes, ferritin, gold and possibly others.

Recently, the procedure for accessing higher education in Saudi Arabia has been changed. It now i... more Recently, the procedure for accessing higher education in Saudi Arabia has been changed. It now includes students taking an academic achievement test in order to access most Saudi universities. Therefore, the focus of this research is to study the attitudes of students and faculty members towards using achievement tests as a part of entrance requirements for King Abdul-Aziz University, Jeddah, Saudi Arabia. The tools applied in this research are questionnaire and interview. Questionnaires were distributed to ninety-two students and faculty members in the School of Arabic at King Abdul-Aziz University, and interviews were conducted with a selection of those students and faculty members at the same school. Most participants agreed that the achievement test helps the admissions departments of higher education institutions to indicate the student's academic level when finishing high school. However, it is necessary to develop the test in several aspects, such as not including questi...

As information security became an increasing concern for software developers and users, requireme... more As information security became an increasing concern for software developers and users, requirements engineering (RE) researchers brought new insight to security requirements. Security requirements aim to address security at the early stages of system design while accommodating the complex needs of different stakeholders. Meanwhile, other research communities, such as usable privacy and security, have also examined these requirements with specialized goal to make security more usable for stakeholders from product owners, to system users and administrators. In this paper we report results from conducting a literature survey to compare security requirements research from RE Conferences with the Symposium on Usable Privacy and Security (SOUPS). We report similarities between the two research areas, such as common goals, technical definitions, research problems, and directions. Further, we clarify the differences between these two communities to understand how they can leverage each oth...

To solve the problems of modeling telecommunications networks currently used by a large number of... more To solve the problems of modeling telecommunications networks currently used by a large number of different methods. All of them can be divided into two classes1-5. First class combines methods of physical modeling in which, instead of the real system uses its simplified physical counterparts. In view of the significant limitations of these methods, they are rarely The second class includes methods of mathematical modeling, using appropriate analytical tools to describe transfer processes in the network. Depending on the used product are mathematical methods based on statistical (simulation) modeling, and theoretical and analytical methods Statistical and physical modeling to obtain accurate results, but because of the high labor intensity, considerable time and low degree of flexibility is of limited use.

Date palms growing in hot arid regions are generally facing several kinds of environmental stress... more Date palms growing in hot arid regions are generally facing several kinds of environmental stresses, especially salinity and aridity, which limit growth of young trees in newly established orchards and thus might negatively affect future tree productivity and fruit quality. Growth parameters, pigment contents and nutrient uptake were examined in young tissue culture-derived date palm trees (Phoenix dactylifera L.) cv. 'Barhee' subjected to foliar application of 5-aminolevulinic acid (5-ALA) at different rates in a newly established orchard. The results showed that after 20 months from transplanting all the trees were successfully developed and well established without any losses. After 12 months from transplanting, the tree height was not significantly affected by 5-ALA application compared to control. However, after 20 months from transplanting, the tree height was significantly higher at 50 and 100 ppm of 5-ALA application compared to control, while 5-ALA application at 15...

This study aimed to investigate the most common learning styles in children with autism and their... more This study aimed to investigate the most common learning styles in children with autism and their relationship with some variables. The studies applied on a sample of (150) of the children with autism were randomly selected. The members of the study responded to a questionnaire prepared to achieve the objectives of the study consists of learning styles (visual verbal, visual, kinesthetic sense, auditory). After analyzing the results of the study showed that the most common learning styles are verbal visual style, does not fit the pattern auditory autistic. As it turns out that there are statistically significant differences in patterns favorite due to the severity of disability in favor of Simple disability, there are no significant differences due to gender. In the light of the results there were some useful recommendations aimed at support the preferred style.

This research investigates the quality assurance of mobile applications. It specially focused on ... more This research investigates the quality assurance of mobile applications. It specially focused on the automated quality tools. It has started with an overview of quality in mobile environments. The impotence of differentiating the mobile applications than desktops applications. Different models of testing applications was discovered. Selection criteria of any automated testing tool was declared. Finally, we have designed a prototype model for an automated tools for quality assurance. It was mainly focused on the quality assurance of performance. Three major attributes of mobile application’s performance were examined. These attributes are request delay, power consumption and network delay. Keywords— quality assurance; performance of mobile applications; techniques of QA for mobile applications; automation tools of QA; Quality assurance models.

Job burnouts have been associated with reduced employee satisfaction and performance. Establishin... more Job burnouts have been associated with reduced employee satisfaction and performance. Establishing the causes of job burnout and its effect on staff members of the King Abdul-Aziz University, Jeddah, Saudi Arabia, was the intention of the present investigation. Three dimensions of burnout were assessed: exhaustion, depersonalization, and personal accomplishment. It was hypothesized that each of the three had direct impacts on workplace satisfaction and performance. The research assumed a quantitative approach using a descriptive design. Data from 500 individuals who work at the institution were randomly sampled and analyzed; and information obtained through questionnaires. The mean exhaustion level of the sample was 2.95 (std, dev. = 0.77) while that for depersonalization and personal accomplishment were 2.09 (std, dev. = 0.77) and 3.83 (std, dev. = 0.53) respectively. The average staff performance was 3.36 (std, dev. = 0.60). Significant associations were established between perfor...

Journal of Oral & Dental Health

Background and Aims: Medication prescribing error is common, the consequences of such errors are ... more Background and Aims: Medication prescribing error is common, the consequences of such errors are more harmful and frequent among patients in the hospital, the specific aim of the study was identify types of prescribing errors, identify the most common drugs prescribed in the hospitals and to see if there is correlation between the numbers of drugs prescribed and the number errors (omissions and commissions). Method: Prospective cross-sectional study was performed in the security force clinics in Riyadh, The 300 prescriptions were collected from the central pharmacy with convenience sampling procedure to select the prescriptions and the study used a descriptive and inferential analysis to answer the research questions. Results: A total of 759 drugs were prescribed, in which 4118 errors were discovered in the prescriptions (2408 omissions errors, 1710 commissions errors), the most common omissions errors in the prescription under study was omit patient gender, in which nearly all the ...

Airports form part of the most important transport infrastructure of every nation state in the gl... more Airports form part of the most important transport infrastructure of every nation state in the globe. The absolute number of inhabitants and data passing through airports each day and the apparent prospects to embezzle data, shake down money or set off anarchy makes them an unavoidable target for cyber attack. Cyber-security events are considerably growing year-on-year across the full spectrum of worldwide trade. Due to their visibility, interruption of the indispensable operations of airlines and airports could plausibly be the subject of a cyber-attack by cyber terrorists. Unluckily, not all airports have put into practice cyber-security systems that would defend and manage those operations and all connected aspects. It cleanly means that even though various may have security measures in place, cyber criminals, " hacktivists " , or cyber terrorists may possibly mull over this as a ideal opening to molest the airports in loads of diverse ways. We outline here the need, es...

Introduction: Disability is the condition of difficulty in carrying out daily activities normally... more Introduction: Disability is the condition of difficulty in carrying out daily activities normally and in taking part in social life due to problems in parts of the body and the physical system. Children with disabilities are one of the most marginalized and excluded groups in society. Facing daily discrimination in the form of negative attitudes, Estimates suggest that there are at least 93 million children with disabilities in the world, but numbers could be much higher. Method: A descriptive analytical research design was used to identify the quality of life of parents/caretakers having a child with disability/ies in Illam district. Systematic random sampling was used and collected data from 244 participants. World Health Organization Quality of Life-Brief (WHOQOL-BREF) Questionnaire was adopted Association between the socio-demographic variables and four domains of WHOQOL was determined using one way ANOVA. In the end, multiple linear regression analysis was performed to find the predictors of domains of WHOQOL and to control the confounding effect. Results: The quality of parents having a child with disability have good quality of life in social relationship mean 15.6±1.3.The physical domain is weakly correlated with the social domain. There is a moderate positive correlation between psychosocial and the social domains. Cognitive disability mean score was highest on social domain that is 14.91and lowest on the physical domain (13.87). Conclusion: To improve quality life of parents, health care and welfare professionals should focus on particular people with higher age group, disadvantaged and marginalized groups illiterate, those who are unmarried, divorced or separated and those engaged in agriculture and carry out interventions aimed at improving their quality of life.

Add f C d Abstract Background—Poor cardiorespiratory fitness (CRF) is an independent risk factor for

The present-day tectonics of the Northwestern Region of Saudi Arabia is affected by the tectonics... more The present-day tectonics of the Northwestern Region of Saudi Arabia is affected by the tectonics related to the Red Sea floor spreading. The tectonic movemets related to the Red Sea floor spreading creat great variations in the crustal structure and depth of Moho discontinuity through this region. Gravity data have been acquired from Earth Gravitional Model (EGM-2008) and analyzed to estimate the crustal thickness under this region. 2-D gravity modeling have been conducted along eleven profiles oriented ENE-WSW and NW-SE to verify the lateral variations of the crust and mantle beneath these profiles. Accordingly, the upper layer of the crust is represented by sedimentary rocks underlying by basement layer that extends until the Moho discontinuity. The crustal thickness increases eastward,and the depth to the Moho is 25 km in the western part, along the Red Sea and increased upto 38 km through the Arabian Shield. These results are in agreement with the previous deep seismic and seis...

Submitted: Jun 9, 2013; Accepted: Jul 22, 2013; Published: Jul 28, 2013 Abstract: The principal g... more Submitted: Jun 9, 2013; Accepted: Jul 22, 2013; Published: Jul 28, 2013 Abstract: The principal goal of this study was to investigate the protective role of pumpkin seed oil (PSO) and vitamin E (Vit E) against sodium valproate (SVP)-induced testicular damage in male rats. Forty five adult male rats were randomly distributed into 5 groups, of 9 animals each. Group (1) was given orally 1ml distilled water/rat and used as negative control and group (2) was orally given SVP (500 mg/kg/day) during the last week of experiment period to induce testicular damage and used as positive control. The other three protected groups were pretreated by oral administration of PSO at a dose of 40 mg/kg, Vit E at 200 mg/kg and PSO with Vit E respectively for 8 weeks and received SVP during the last week. Blood samples were collected for estimating serum levels of testosterone, Follicle – stimulating hormone (FSH) and Luteinizing hormone (LH). Semen samples were collected for semen analysis. Rats were th...

Purpose: This study aims at highlighting the significance and importance of utilizing MKIS in dec... more Purpose: This study aims at highlighting the significance and importance of utilizing MKIS in decision-making, as well as to describe the process of decisions taken by decision maker using MKIS. The study also aims to lay out the necessary requirements for the successful implementation of MKIS in decision-making. The study conclude that the roles for computerbased support for developing marketing strategy present a real challenge to individual computer-based techniques and technologies in the dynamic environment. A single support technique cannot meet the broad requirements of the new roles, and can only fit some of them. Each technique has specific benefits that make it suited to certain problems but not to others. While individual intelligent techniques have particular strengths, they also have specific weaknesses. These weaknesses raise the need for developing a hybrid intelligent system, where two or more techniques or technologies are combined to overcome the weaknesses of indi...

Immuno-labelled techniques (ILTs) depend on linking of a specific antibody to a labelling materia... more Immuno-labelled techniques (ILTs) depend on linking of a specific antibody to a labelling material. The so-produced conjugate is utilized to detect or assay a specific reactant against which the antibody, in the conjugate, is directed. Many labelling materials have been conjugated to specific antibodies. The most commonly used labels included enzymes, avidin-biotin, radioactive materials, fluoriscin dyes, ferritin, gold and possibly others.

Recently, the procedure for accessing higher education in Saudi Arabia has been changed. It now i... more Recently, the procedure for accessing higher education in Saudi Arabia has been changed. It now includes students taking an academic achievement test in order to access most Saudi universities. Therefore, the focus of this research is to study the attitudes of students and faculty members towards using achievement tests as a part of entrance requirements for King Abdul-Aziz University, Jeddah, Saudi Arabia. The tools applied in this research are questionnaire and interview. Questionnaires were distributed to ninety-two students and faculty members in the School of Arabic at King Abdul-Aziz University, and interviews were conducted with a selection of those students and faculty members at the same school. Most participants agreed that the achievement test helps the admissions departments of higher education institutions to indicate the student's academic level when finishing high school. However, it is necessary to develop the test in several aspects, such as not including questi...

As information security became an increasing concern for software developers and users, requireme... more As information security became an increasing concern for software developers and users, requirements engineering (RE) researchers brought new insight to security requirements. Security requirements aim to address security at the early stages of system design while accommodating the complex needs of different stakeholders. Meanwhile, other research communities, such as usable privacy and security, have also examined these requirements with specialized goal to make security more usable for stakeholders from product owners, to system users and administrators. In this paper we report results from conducting a literature survey to compare security requirements research from RE Conferences with the Symposium on Usable Privacy and Security (SOUPS). We report similarities between the two research areas, such as common goals, technical definitions, research problems, and directions. Further, we clarify the differences between these two communities to understand how they can leverage each oth...

To solve the problems of modeling telecommunications networks currently used by a large number of... more To solve the problems of modeling telecommunications networks currently used by a large number of different methods. All of them can be divided into two classes1-5. First class combines methods of physical modeling in which, instead of the real system uses its simplified physical counterparts. In view of the significant limitations of these methods, they are rarely The second class includes methods of mathematical modeling, using appropriate analytical tools to describe transfer processes in the network. Depending on the used product are mathematical methods based on statistical (simulation) modeling, and theoretical and analytical methods Statistical and physical modeling to obtain accurate results, but because of the high labor intensity, considerable time and low degree of flexibility is of limited use.

Date palms growing in hot arid regions are generally facing several kinds of environmental stress... more Date palms growing in hot arid regions are generally facing several kinds of environmental stresses, especially salinity and aridity, which limit growth of young trees in newly established orchards and thus might negatively affect future tree productivity and fruit quality. Growth parameters, pigment contents and nutrient uptake were examined in young tissue culture-derived date palm trees (Phoenix dactylifera L.) cv. 'Barhee' subjected to foliar application of 5-aminolevulinic acid (5-ALA) at different rates in a newly established orchard. The results showed that after 20 months from transplanting all the trees were successfully developed and well established without any losses. After 12 months from transplanting, the tree height was not significantly affected by 5-ALA application compared to control. However, after 20 months from transplanting, the tree height was significantly higher at 50 and 100 ppm of 5-ALA application compared to control, while 5-ALA application at 15...

This study aimed to investigate the most common learning styles in children with autism and their... more This study aimed to investigate the most common learning styles in children with autism and their relationship with some variables. The studies applied on a sample of (150) of the children with autism were randomly selected. The members of the study responded to a questionnaire prepared to achieve the objectives of the study consists of learning styles (visual verbal, visual, kinesthetic sense, auditory). After analyzing the results of the study showed that the most common learning styles are verbal visual style, does not fit the pattern auditory autistic. As it turns out that there are statistically significant differences in patterns favorite due to the severity of disability in favor of Simple disability, there are no significant differences due to gender. In the light of the results there were some useful recommendations aimed at support the preferred style.

This research investigates the quality assurance of mobile applications. It specially focused on ... more This research investigates the quality assurance of mobile applications. It specially focused on the automated quality tools. It has started with an overview of quality in mobile environments. The impotence of differentiating the mobile applications than desktops applications. Different models of testing applications was discovered. Selection criteria of any automated testing tool was declared. Finally, we have designed a prototype model for an automated tools for quality assurance. It was mainly focused on the quality assurance of performance. Three major attributes of mobile application’s performance were examined. These attributes are request delay, power consumption and network delay. Keywords— quality assurance; performance of mobile applications; techniques of QA for mobile applications; automation tools of QA; Quality assurance models.

Job burnouts have been associated with reduced employee satisfaction and performance. Establishin... more Job burnouts have been associated with reduced employee satisfaction and performance. Establishing the causes of job burnout and its effect on staff members of the King Abdul-Aziz University, Jeddah, Saudi Arabia, was the intention of the present investigation. Three dimensions of burnout were assessed: exhaustion, depersonalization, and personal accomplishment. It was hypothesized that each of the three had direct impacts on workplace satisfaction and performance. The research assumed a quantitative approach using a descriptive design. Data from 500 individuals who work at the institution were randomly sampled and analyzed; and information obtained through questionnaires. The mean exhaustion level of the sample was 2.95 (std, dev. = 0.77) while that for depersonalization and personal accomplishment were 2.09 (std, dev. = 0.77) and 3.83 (std, dev. = 0.53) respectively. The average staff performance was 3.36 (std, dev. = 0.60). Significant associations were established between perfor...

Journal of Oral & Dental Health

Background and Aims: Medication prescribing error is common, the consequences of such errors are ... more Background and Aims: Medication prescribing error is common, the consequences of such errors are more harmful and frequent among patients in the hospital, the specific aim of the study was identify types of prescribing errors, identify the most common drugs prescribed in the hospitals and to see if there is correlation between the numbers of drugs prescribed and the number errors (omissions and commissions). Method: Prospective cross-sectional study was performed in the security force clinics in Riyadh, The 300 prescriptions were collected from the central pharmacy with convenience sampling procedure to select the prescriptions and the study used a descriptive and inferential analysis to answer the research questions. Results: A total of 759 drugs were prescribed, in which 4118 errors were discovered in the prescriptions (2408 omissions errors, 1710 commissions errors), the most common omissions errors in the prescription under study was omit patient gender, in which nearly all the ...

Airports form part of the most important transport infrastructure of every nation state in the gl... more Airports form part of the most important transport infrastructure of every nation state in the globe. The absolute number of inhabitants and data passing through airports each day and the apparent prospects to embezzle data, shake down money or set off anarchy makes them an unavoidable target for cyber attack. Cyber-security events are considerably growing year-on-year across the full spectrum of worldwide trade. Due to their visibility, interruption of the indispensable operations of airlines and airports could plausibly be the subject of a cyber-attack by cyber terrorists. Unluckily, not all airports have put into practice cyber-security systems that would defend and manage those operations and all connected aspects. It cleanly means that even though various may have security measures in place, cyber criminals, " hacktivists " , or cyber terrorists may possibly mull over this as a ideal opening to molest the airports in loads of diverse ways. We outline here the need, es...

Introduction: Disability is the condition of difficulty in carrying out daily activities normally... more Introduction: Disability is the condition of difficulty in carrying out daily activities normally and in taking part in social life due to problems in parts of the body and the physical system. Children with disabilities are one of the most marginalized and excluded groups in society. Facing daily discrimination in the form of negative attitudes, Estimates suggest that there are at least 93 million children with disabilities in the world, but numbers could be much higher. Method: A descriptive analytical research design was used to identify the quality of life of parents/caretakers having a child with disability/ies in Illam district. Systematic random sampling was used and collected data from 244 participants. World Health Organization Quality of Life-Brief (WHOQOL-BREF) Questionnaire was adopted Association between the socio-demographic variables and four domains of WHOQOL was determined using one way ANOVA. In the end, multiple linear regression analysis was performed to find the predictors of domains of WHOQOL and to control the confounding effect. Results: The quality of parents having a child with disability have good quality of life in social relationship mean 15.6±1.3.The physical domain is weakly correlated with the social domain. There is a moderate positive correlation between psychosocial and the social domains. Cognitive disability mean score was highest on social domain that is 14.91and lowest on the physical domain (13.87). Conclusion: To improve quality life of parents, health care and welfare professionals should focus on particular people with higher age group, disadvantaged and marginalized groups illiterate, those who are unmarried, divorced or separated and those engaged in agriculture and carry out interventions aimed at improving their quality of life.

Add f C d Abstract Background—Poor cardiorespiratory fitness (CRF) is an independent risk factor for