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The purpose of this study is to successfully apply ultrasonic waves for the quick extraction of flax seed gum from flaxseed hull or whole seed and compare it to the standard technique of extraction.

The effect of the heating source, extracted time, temperature and pH of extracted solution on the extraction was studied. The obtained gum is subsequently used for silk screen printing on cotton, linen and viscous fabrics. Rheological properties and viscosity of the printing paste were scrutinized in the current study to get a better insight into this important polysaccharide. The output of this effort aimed to specify the parameters of the processes for printing textiles to serve in women’s fashion clothes by applying innovated handmade combinations of Islamic art motives using a quick and affordable method. Seven designs are executed, and inspiring from them, seven fashion designs of ladies’ clothes were designed virtually by Clo 3D software.

The result recorded that the new gum has excellent printing properties. In addition, they have better rheological properties, viscosity, chromatic strength and fastness qualities, all of which could help them in commercial production.

Flaxseed and three different fabric types (Cotton, Linen and Viscous) were used.

Synthesis of a new biodegradable thickener from a natural resource, namely, flaxseed, by applying new technology to save time, water and energy.

Synthesis of eco-friendly biodegradable thickener and used in textile printing alternative to the synthetic thickener.

Due to herbs and plants’ therapeutic properties and simplicity of availability in nature, humans have used them to treat a variety of maladies and diseases since ancient times. Later, as technology advanced, these plants and herbs gained significant relevance in some industries due to their suitable chemical composition, abundant availability and ease of access. Aegle marmelos is a species of plant that may be found in nature. Yet, little or very little literature was located on the coloration behavior of this plant’s leaves. This study aims to focus on the effect of different parameters on the extraction of colorant from Aegle marmelos leaves.

Some factors that affected on the extraction processes were examined and found to have significant impacts on the textile dyeing such as the initial dye concentration, extracted temperature, extracted bath pH and extracted time were all changed to see how they affected color extraction. The authors report a direct comparison between three heating methods, namely, microwave irradiation (MWI), ultrasonic waves (USW) and conventional heating (CH). The two kinetic models have been designed (pseudo-first and pseudo-second orders) in the context of these experiments to investigate the mechanism of the dyeing processes for fabrics under study. Also, the experimental data were analyzed according to the Langmuir and Freundlich isotherms.

From the result, it was discovered these characteristics were found to have a substantial effect on extraction efficiency. Temperature 90°C and 80°C when using CH and USW, respectively, while at 90% watt when using MWI, period 120 min when using CH as well as USW waves, while 40 min when using MWI, and pH 4, 5 and 10 for polyamide, wool and cotton, respectively, were the optimal extraction conditions. Also, the authors can say that wool gives a higher absorption than the other fabric. Additionally, MWI provided the best color strength (K/S) value, and homogeneity, at low temperatures reducing the energy and time consumed. The coloring follows the order: MWI > USW > CH. The adsorption isotherm of wool could be well fitted by Freundlich isotherm when applying CH and USW as a heating source, while it is well fitted by the Langmuir equation in the case of MWI. In the study, it was observed that the pseudo-first-order kinetic model fits better the experimental results of CH with a constant rate K₁ = −0.000171417 mg/g.min, while the pseudo-second-order kinetic model fits better the experimental results of absorption of both MWI (K2 = 38.14022572 mg/g.min) and USW (K₂ = 12.45343554 mg/g.min).

There is no research limitation for this work. Dye was extracted from Aegle marmelos leaves by applying three different heating sources (MWI, ultrasonic waves [USWW] and CH).

This work has practical applications for the textile industry. It is concluded that using Aegle marmelose leaves can be a possible alternative to extract dye from natural resource by applying new technology to save energy and time and can make the process greener.

Socially, it has a good impact on the ecosystem and global community because the extracted dye does not contain any carcinogenic materials.

The work is original and contains value-added products for the textile industry and other confederate fields.

Sex and age estimation is important, particularly when information about the deceased is unavailable. There are limited radiological studies investigating side, sex and age differences in normal ankle morphometric parameters. The authors’ goal was to evaluate different ankle joint morphometric measurements and document variations among Egyptians.

A prospective study was conducted throughout 23 months on 203 (100 males and 103 females) adult Egyptians, aged between 20-69 years old, who were referred for a plain x-ray of bilateral normal ankle joints.

Ankle parameters showed no statistical difference between both sides, except for tarsal width (TaW) which was significantly higher on right than left side (26.92 ± 2.66 vs 26.18 ± 2.65 mm). Males showed significantly higher morphometric values except for anteroposterior gap (APG) and talus height (TaH) which were significantly higher in females (2.29 ± 0.80 vs 1.80 ± 0.61 mm and 13.01 ± 1.68 vs 11.87 ± 1.91 mm, respectively). There was significant increase in tibial arc length, APG, distance of level of MTiTh from anterior limit of mortise, distance of level of MTiTh from vertex of mortise, sagittal distance between tibial and talar vertices and sagittal radius of trochlea tali arc in old age group compared to young one. A significant decrease in tibial width, malleolar width, TaW and TaH was noted in old age group compared to young one.

Ankle joints of both sides are mostly symmetrical; however, there are significant differences in most morphometric values due to sex and age factors. These findings may be essential during side, sex and age determination.

The purpose of this paper is to examine information technology and information systems (IT/IS) technology teaching and learning (T&L) as affected by three key factors of tacit knowledge (TK). These factors are the de-contextualization, the faculty and students’ mental model gap and the intrinsic inability of faculty to teach what they know (i.e. the know-how-know what gap).

The approach is based on intensive literature review and synthesis of Nonaka’s socialization, externalization, combination and internalization model and other relevant knowledge management (KM) principles applied to understand the effects of mobilization and nurturing of TK in pedagogical activities and strategies.

This paper demonstrated a holistic view of the role of TK in teaching IT/IS through deep learning activities. It differentiates between faculty and student mental models and the ability of the faculty to convey real-world know-how to students.

This study is by no means comprehensive in exploring the TK contextual dimensions of IT/IS T&L milieus. However, some of the assumptions and factors in this paper are not pertinent to some pedagogical environments.

The activities in this paper introduced new propositions on IT/IS teaching by focusing on TK concepts in light of its challenges. The study could be used by institutes to place emphasis on accommodating TK within effective IT/IS T&L activities.

Drawing on the KM literature and experience, this paper offers new insight into how TK can be innovatively incorporated into a pedagogical landscape.

The main problem addressed by this research is the current debate between the negative and positive effects of industrial clusters. This debate is a result of gaps between theoretical implications and empirical evidence in both the classical agglomeration theory and the agglomeration lifecycle theory. The purpose of this study is to propose a framework for developing an index measuring both organizational cluster involvement and organizational supply chain including the three pillars (economic, social, and environmental). Furthermore, the index acts as a quantitative predictor of the stages of the life cycle of industrial clusters. Adopting a case study methodology, the applicability of the index development framework is demonstrated. First, cross-sectional exploratory interviews are performed to locate items measuring the three pillars of organizational sustainability within Egyptian communication industry. Second, an explanatory, cross-sectional approach is applied gathering data from eight professionals related to involvement and supply chain sustainability of their organizations. Analytical hierarchical process is used for weighting and aggregating individual item metrics into two indicators (Saaty, 1980). Measuring, managing, and controlling capabilities of organization's supply chains outweighs the need to manage risks. The proposed framework aids firms within a cluster in making timely decisions about what needs addressing to improve supply chain sustainability performance. Hence, all environmental, social, and economic capabilities can be effectively monitored and controlled.

The importance of e-literacy of staff in the digital life is fundamentally very crucial, to such an extent that it is considered as one of the primary conditions for successful utilization of knowledge management processes using social technologies within organizations. This study aims to explain and test a novel conceptual model to show the impact of applying social technologies on knowledge management (KM) processes in the context of Iranian organizations, considering the moderator role of e-literacy of employees.

Based on an in-depth study of the relevant literature, a questionnaire was designed. The sound questionnaires obtained from our sample size was 207 and respondents were experts in the field of information technology (IT) within the Central Office of Insurance companies in Tehran. The collected data were analyzed using structural equation modeling and path analysis.

The results indicate that the use of social technologies with the factor loading of 0.57 has the highest impact on knowledge exchange and 0.61 on knowledge utilization. In addition, the results indicate that e-literacy with the factor loadings of 0.69 and 0.74 has the highest impact on knowledge exchange and knowledge utilization, respectively. In addition, the impact of social technologies with the factor loading of 0.82 has the highest impact on e-literacy.

One of the limitations of this study was the generalizability of the findings, which may be limited, as it is focused on one developing country. Also, the lack of full implementation of KM and the use of social technologies in the insurance industry may affect the obtained results.

To the best knowledge of the authors, this study is among the first of its kind which examines the impact of social technologies usage on the KM processes considering an important variable, i.e. e-literacy of employees.

The purpose of this paper is to contribute to the existing disclosure literature by examining the determinants of corporate risk disclosure (CRD) in the internet reporting for a sample of Egyptian listed companies on the Egyptian Stock Exchange (EGX).

This study depends on a sample of 76 Egyptian companies included in the EGX 100 in the period 2012-2014. The study applies a content analysis and uses a sentence-based method to measure CRD in the internet reporting. Ordinary least-squares regression analysis is used to examine the impact of firm and board characteristics on CRD in the internet reporting.

The empirical analysis shows that large Egyptian companies tend to disclose more risk information in their internet reporting. Moreover, the results indicate that there is a significant positive association between sector type and CRD in the internet reporting. The results show non-significant association between CRD and other firm characteristics (cross listing and level of risk). Finally, there are no significant associations between CRD and board characteristics variables (board size, board composition and CEO duality).

The study’s findings have practical implications. It aids in informing policy makers considering implementing new economic reform programs about the properties of Egyptian companies that disclose risk information in their internet reporting. It provides insights on CRD in Egyptian companies for standards setters and professional authorities to improve risk reporting practices to help stakeholders in making good decisions.

This study is one of the first studies to examine the determinants of CRD in the internet reporting for a sample of Egyptian companies.

Despite the significance of donations (Sadaqah) via mobile payment in Islamic countries, little is known about the variables influencing continuance intention toward using m-payment for donations (Sadaqah). Based on the stimulus-organism-response (S-O-R) model, this research explores the influence of perceived quality (i.e. system, information, service) as a stimulus on customer satisfaction, engagement and delight as organisms, which then affects continuance intention toward using m-payment for donations (Sadaqah) as a response. Moreover, the study investigates the moderating role of Islamic religiosity.

Using partial least squares structural equation modeling (PLS-SEM), a representative data sample of 419 Egyptian Muslims was analyzed to test hypotheses.

The findings revealed that all perceived quality constructs significantly positively affect customers' satisfaction. Customer satisfaction, in turn, positively affects customer engagement and delight. Moreover, customer engagement, delight and Islamic religiosity significantly positively affect continuance intention toward using m-payment for donations (Sadaqah). The findings also revealed that Islamic religiosity moderates the influence of customer engagement and customer delight on continuance intention toward using m-payment for donations (Sadaqah).

This is the first study to examine using m-payment for donations (Sadaqah) in an Islamic environment based on the S-O-R model.

The purpose of this study is threefold: first, to determine whether civic education has a positive impact on voting intentions among the electorate; second, to establish whether attitudes towards voting behaviour (ATVB) mediate the relationship between civic education and voting intentions; and third, to determine whether educational level moderates the relationship between civic education and voting intentions.

This study adopted a survey research design and a quantitative approach. Data were collected from a sample of 1,450 registered voters from the six geopolitical zones of Nigeria. A regression-based approach was adopted to test the study hypotheses using Hayes-PROCESS Macro 3.5.

The results indicate that civic education is positively associated with voting intentions. Further analysis reveals that ATVB significantly mediates the association between civic education and voting intentions. Additionally, educational level positively moderates the relationship between civic education and voting intentions.

The findings offer implications for governments and democratic institutions.

To the best of the authors’ knowledge, this is the first study to provide empirical evidence of the mediating effect of ATVB and the moderating effect of educational level on the relationship between civic education and voting intentions. This study provides useful insights into the factors that influence voting intentions.