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6 record(s) found

Chemical profile, physicochemical-sensory properties, trans-esterification and biological efficacy of agro-waste seed oils in Malaysia

Khalaf, Asaad Abbas

Abstract

This study aims to investigate the potential use of biochemical seed oils of agro-waste as anti-trypanosomal, anti-oxidant, and anti-bacterial edible oil, sun-protection oil, and biodiesel. A comparative study was conducted to examine the chemical profile, physicochemical-sensory properties, and trans-esterification of seed oils collected from agro-waste in the Mualim district. Five drying techniques were tested before extracting the seed oils. Standard methods were then used to determine the chemical compounds, physicochemical-sensory properties, and bio-activity of the extracted seed oils. The analysis performed on such oils showed there were significant differences in the amount of seed oils between drying techniques, F (dfb, dfw) = 39.89, p = 0.00. Specifically, the analysis showed the microwave-drying technique produced the highest oil yield except for Carica papaya. L and Cucurbita sp, and the seed oils extracted from Mangifera indica had the best antioxidant property......

Thesis Published 2019 3501 hits Available

Acquiring grammatical concepts in the light of structural theory

Hammoudi, Farouk Khalaf

Abstract

Specialists in education and psychology see that the cognitive lag in the language is divided between the prevailing methodological stereotyping that reaches stagnation and the delivery of material to the learner's mind takes divergent forms, and cognitive learning falters. Therefore, the contemplator in teaching grammatical concepts finds an unsatisfactory reality, and there is a constant complaint about it. The philosophy of the school and the goals of education still depend on transferring information rather than focusing on generating it, which led to a low level of achievement in it. It is noted that teaching grammatical concepts is still far from achieving the goals of acquiring grammatical concepts that need a functional aspect and adopting modern teaching methods and strategies to activate the teaching of ideas. Thus the success of education is linked to the success of the technique, as the right way can address many of the shortcomings in curricula, students' weaknesses, and.....

Article Published 2021 609 hits Available

The impacts of self-service technology adoption attributes on customer satisfaction in Abu Dhabi distribution company (ADDC)

Alhosani, Khalaf Abdulla

Abstract

This study aimed to determine the impact of the self-service technology (SST) adoption attributes, namely ease of use, reliability, readiness, and interactivity, on customer satisfaction towards governmental services in the United Arab Emirates (UAE). This study adopted a quantitative approach. A sample consisted of 385 customers of Abu Dhabi Distribution Company (ADDC), which were selected using simple random sampling. Data were collected using a questionnaire as a research instrument and analysed using multiple linear regression. At the significance level of 0.05, the findings revealed SST reliability (β= -0.113, p=0.045) and interactivity of SST (β=0.302, p=0.000) as significant predictors of customer satisfaction. In particular, the effect of SST reliability on customer satisfaction is negative, while the effect of SST interactivity is positive. The SST ease of use (β=0.034, p=0.549), and SST readiness (β=-0.044, p=0.422) do not significantly affect customer satisfac.....

Thesis Published 2023 2093 hits Available

The effect of content creator for English phenomenon in social media on vocabulary learning

Khalaf, Naji Zaidan

Abstract

Abstract: The proliferation of social media platforms has emerged as a global phenomenon. Currently, individuals spend a significant portion of their time engaging with online platforms, particularly those related to social networking. Social media sites provide students with access to a range of effective learning methods, such as automatic learning and visualization approaches. The use of social media platforms for the purpose of acquiring English language skills is both stimulating and motivational. The major goal of this study is to investigate how social media platforms, notably Facebook, aid in the acquisition of English language fluency, either via automated processes or by inadvertent means. The research used a 5-Likert scale questionnaire, pre- and post-vocabulary tests, and semi-structured interviews to collect data from second-grade EFL learners and social media users. The results indicate that individuals who generate material on social media platforms have a substantial in.....

Article Published 2023 655 hits Available

Obstacles of applying e-training in the training and professional development centers in the Sultanate of Oman from the point of view of the trainers

Al Makhashni, Sulaiman Khalaf Saeed

Abstract

The study aimed to identify the obstacles to the application of e-training in training centers in the Sultanate of Oman from the point of view of trainers, trainers’ assistants, and training specialists. The study employed a quantitative descriptive method, in which a questionnaire comprising 36 items across various fields of study was used, after confirming the authenticity of the performance through the consensus of 80% of the referees and validating it using the Cronbach’s alpha coefficient, this questionnaire was applied to the study sample, which consisted of 174 individuals (males N= 80 and Females N=94) in the academic year 2021-2022. The key findings of the study revealed that the degree of obstacles to the application of etraining in training centers, from the perspective of the study sample, was high, with an overall percentage of (70%). Regarding the types of obstacles, material obstacles ranked first with a percentage of (78.4%), followed by technical obsta.....

Thesis Published 2024 730 hits Available

The impact of the distance learning environment based on the use of digital technologies and its impact on the development of motivation, independence and social interaction among early education children in the sultanate of Oman

Almazroei, Ahmed Khalaf Saeed

Abstract

The COVID-19 pandemic has forced teachers to adopt a new teaching method necessary for online learning, requiring them to use various digital technologies and platforms to ensure the continuity of the educational process without interruption. However, this transformation has created various challenges that require teachers to rethink how to motivate learners, foster autonomy, and encourage social interaction, especially for young learners during online learning, and the ways of using digital technologies and platforms to deliver their teaching. Therefore, the current study aimed to examine the impact of the online learning environment using digital technologies to improve young learners_ autonomy and increase motivation social interaction among early childhood learners in Oman. In this study, qualitative phenomenology approach was used. Data was collected through semi-structured interviews with 24 participants including teachers and supervisors. Thematic analysis as the primary method .....

Thesis Published 2024 917 hits Available

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