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Adel Saad Al-Qarni, Odeh Al-Jayyousi and Soud Almahamid
Purpose: The purpose of this study is to examine the impact of knowledge management processes on service innovation in international airports in the Kingdom of Saudi Arabia. Approach: The study applied a quantitative method to collect data via a questionnaire. A total number of 1493 questionnaires were distributed by two methods: 785 were paper copies and 708 online google forms. Out of 708 electronic questionnaires, only 85 were returned, while out of 785 paper-based questionnaires, 230 were collected. Results: The results showed that knowledge management processes (creating, sharing, and application) have a positive and significant impact on service innovation. Also, results showed that knowledge management processes (creating, sharing, and application) have a positive and significant impact on organizational creativity. Furthermore, organizational creativity acts partly as a mediator between knowledge management creation and service innovation. The results support the main role of knowledge management processes as a catalyst of knowledge-based innovation in Saudi international airports. Recommendations: Finally, the research recommends conducting such a study on airports in other countries in the GCC. Moreover, the study recommends building the capacity of human capital and to motivate employees to enhance organizational creativity in the airport sector. Originality: Developing and testing a new model that links knowledge management processes and organizational creativity with services in the GCC context.
A.N. Basahe), A. Bahafzalla, H.H. Mansour And S. Omara
The depositional environments of the Haddat Ash Sham and Usfan Fonnations, exposed at Haddat Ash Sham area NE of Jeddah have been identified on the basis of the vertical variation in primary sedimentary structures.
The base of the Haddat Ash Sham Fonnation (Kheslef Member) is characterized by bioturbation, Cross-bedding of Planar, herringbone and longitudinal types, ripple marks, cross-lamination and rare mud-cracks, which might reflect deposition on shallow intertidal-subtidal subenvironment with numerous channels and sand bars. On the other hand, the top of the same fonnation (Bonna Member) shows planar and' channel cross-bedding, graded bedding, scour and fill structures, Also within this member few horizons with poor bioturbation and cross-lamination are also encountered. These features might indicate alluvial fan (water laid and debris flow sediments) depositional environment under arid and semi-arid climates.
The Usfan Fonnation exhibits moderate to poor bioturbation, ripple marks, cross-lamination, lenticular and flaser-bedding, planar cross-bedding, and rare trough-cross-bedding, mud-cracks and rain drop prints. Consequently, the lower and upper members of the fonnation were probably deposited on shallow intertidal-subtidal zones. The middle member, however, was probably accumulated as a pelecypod bank. in shallow water, under moderate to high agitation, with good current circulation.
Sabah Aljenaid, Ghadeer Mohamed Redhah Kathem and Nadir Abdulhamed
This study aims to map, examine and analyze the changes in Land Use/Land Cover (LULC) in the main islands of the Kingdom of Bahrain (Bahrain, Muharraq, Sitra) during the period from 1998 to 2012.DPSIR was used as a qualitative approach to analyze driving Forces-Pressures that are mainly affect the LULC changes. While the quantitative analysis of the driving forces and landuse change was done using GIS analysis. Four LULC categories were recognized )Built up, Agriculture, Barren and Wet land(.The results revealed that the total area of the main islands has increased from 709.5 km2 in 1998, to more than 767 km2 in 2012.Consequently, Built up areas were increased from 126.3 km2 to 266.9 km2, while the Agriculture areas were decreased from 72.5 km2 in 1998 to 66.1 km2 in 2012 as a result of the expansion of cities and residential areas establishment. The Barren areas were decreased from 409.6 km2 in 1998 to 326.4 km2 in 2012. DPSIR )Driving forces - Pressures - State - Impact -Responses(framework analyses indicated that the social )increase in population( and economic )increase in GDP( in the country were the main driving forces that exert different pressures on the environment and, as a consequence lead to impacts on LULC, and changed the state of the environment.
Faisal Sultan Alsubaiee, Yousif Naser Aldraim, Siddig Eltaeeb Muneer and Ibrahim Mohamed Alshuhwan
Date palm trees are infected by different diseases and pests that negatively affect its quality and productivity. The control of these pests and diseases requires the use of appropriate technologies to minimize the infection rate and crop losses. This study was intended to determine the adoption rate of some diseases and pests control technologies and methods among Date Palm farmers in Dammam area of Saudi Arabia and the most important factors affecting it. Data was collected through face to face interviews from a simple random sample of 111 Date Palm farmers in the study area using a validated and pre-tested questionnaire. Descriptive statistics (frequency distribution. mean and standard deviation) and multiple regression were used to analyze the data. The study results indicated that the adoption rates of the diseases and pests control technologies and methods by Date farmers are very low. Only one practices (getting rid of agricultural residues immediately) out of the seventeenth technologies and methods under consideration reached medium level. The adoption rates of the other technologies and methods were low and all of them were less than two on an adoption scale of four points. The study revealed that the most important determinants of the adoption rate of the diseases and pests control technologies and methods by Date Palm farmers were the farmers’ level of contact with the different sources of information and farm size; each of them had a statistically significant effect.
Ali, S.A. and Mazhar, H.S.
The catalytic conversion of cyclohexane on a Ni-Al2O3, α-Al2O3, catalyst (31.1% of Ni by wt.) was studied using a flow technique. The catalytic activity was measured in the temperature range 400 to 480°C at a space velocity of 9.4-17.8 X10-2 min - I under normal pressure (1 atm). The gaseous and liquid products of the conversion reaction were analysed chromatographically. The gaseous products were hydrogen and methane, and the liquid products were benzene and cyclohexene together with unreacted cyclohexane . The kinetics of the gaseous products and of cyclohexane revealed a zero-order reaction , but that of cyclohexene and benzene did not. The apparent activation energy was found to be 23 .76 ± 0.2 kcal mol-1 independent of the space velocity .
The activity and selectivity were discussed referring to the Ni-AI2O3, solid catalyst prepared before (Ni-A).