Understanding users’ trust transfer mechanism in food delivery APP

With the rapid dissemination of mobile technologies, along with hectic life nowadays, consumers are more in favor of food delivery apps (FDA). However, many aspects related to the usage of FDAs have not been fully unearthed. Drawing upon the trust transfer theory, the study theorizes the consumer’s trust formation in FDA and investigates the antecedents of trust to platform and trust to a merchant that mediates the continuous usage intention and purchase intention. The proposed framework was tested through structural equation modeling (SEM) based on an online questionnaire. The findings illustrate the trust transfer mechanism in the context of the FDA and its effects, which have both theoretical and practical implications for different stakeholders

Vietnamese Culture in the Fashion Industry: The Case of TiredCity and BARO

The international fashion industry has undergone significant development over the years, in response to the change in consumer preferences, technological advancements, globalization, and socio-cultural shifts. Vietnamese fashion has been steadily gaining recognition and prominence in the global fashion industry with cultural identity and unique aesthetics. The combination of traditional elements with modern influences has resulted in a unique and distinct style that is gaining recognition in both domestic and international markets. The influence of Vietnamese culture in the fashion industry is reflected in many aspects such as design, material, and products. The case studies of two distinct brands TiredCity and BARO explore the incorporation of Vietnamese culture in the fashion industry. Both brands aim to celebrate and promote the rich heritage of Vietnamese culture while presenting it in a contemporary and fashion-forward manner. By celebrating Vietnamese culture through their fashion products, TiredCity and BARO not only appeal to the local market but also attract international customers. This integration of cultural elements helps foster cross-cultural understanding and appreciation, contributing to cultural diversity and the development of the Vietnamese fashion industry

AN INVESTIGATION OF REALITY AND CHALLENGES OF PROJECT-BASED LEARNING IMPLEMENTATION

This descriptive study explores the reality of applying Project-based Learning (PBL) in the context of lower and upper secondary schools in the Mekong Delta, Vietnam. It also aims to investigate the challenges English as a foreign language (EFL) teachers encounter in applying PBL in their actual language teaching classes. Questionnaires and semi-structured interviews were employed to collect the quantitative and qualitative data for this study. A total of 80 EFL teachers from 12 provinces of the Mekong Delta participated in the research, including 8 teachers purposively selected from the population for the interviews. The findings of the present research revealed that team PBL and classroom PBL were implemented most in EFL teachers’ teaching contexts. At the same time, whole-school PBL was seldom conducted due to its complexity in implementation. Most teachers fully carried out the step-by-step process of PBL implementation in their teaching. The results also indicated that EFL teachers face certain challenges when implementing PBL. The major challenges included challenges related to curriculum in terms of lack of time, no specific guidance and assessment criteria for PBL implementation; challenges related to students regarding their mixed abilities, differences in interests and learning styles, and lack of necessary materials and skills for doing projects; and challenges related to teachers comprising adaptation of project activities, lack of time for student support, and controlling large classes. These results provide insightful pedagogical implications for how PBL can be more feasible, applicable, and successful in Vietnamese teaching contexts.  Article visualizations

Limitations of OpenFlow Topology Discovery Protocol

OpenFlow Discovery Protocol (OFDP) is the de-facto protocol used by OpenFlow controllers to discover the underlying topology. In this paper, we show that OFDP has some serious security, efficiency and functionality limitations that make it non suitable for production deployments. Instead, we briefly introduce sOFTD, a new discovery protocol with a built-in security characteristics and which is more efficient than traditional OFDP.Comment: The peer reviewed version can be found here (to be published soon

ADSORPTION OF MERCURIC ION FROM AQUEOUS SOLUTIONS USING MODIFIED FLY ASH

In this study, fly ash was treated with NaOH solution (FAN) before modifying with (3-mercaptopropyl) triethoxysilane - MPTMS (FAMPS). By using FTIR, FESEM, XRD, EDX, and BET techniques, the change in structure, composition and morphology of FAN and FAMPS was evaluated. The FTIR spectra of FAN and FAMPS showed that there is no chemical reaction between the MPTMS and FAN. After modification, the FAMPS has a rough surface with composition difference from the FAN. Mercuric ion adsorption behavior as well as adsorptionisotherm models (Langmuir and Freundlich) of the FAN and FAMPS were also investigated and discussed. Thanks to FAN modification, the mercuric ion removal percent of the FAMPS was higher than that of the FAN. Owing to the adsorption data, Freundlich isotherm modelwas fitted for the mercuric ion adsorption process

On the Way to a Theory for Network Architectures

Abstract. The design of the future Internet is facing real challenges on network architecture. Attempts to resolve the issues related to naming/addressing, middle boxes, QoS-Security-Mobility interactions, cross-layer and inter-domain usually lead to endless debates. This is because the structure of the Internet has become too complex and has evolved with new functions added which are not always compatible with the existing functions. In order to analyze the architecture of the Internet in a strict manner, it is necessary to understand in depth the composition of functionalities within a protocol or between protocols. This paper presents a study on the composition of network functionalities and highlights future directions towards a theory for network architectures which includes the principles that network architectures should follow to ensure the normal operation of the member functions, detect all possible conflicts between them as well as figure out impossibilities

Projekt-Bericht: eCRG Evaluation

Dieser Bericht stellt die Ergebnisse des Projekts „eCRG Evaluation“ vor. Dieses Projekt umfasst die Konzeption und Durchführung einer Studie, welche die Verständlichkeit der eCRG-Sprache evaluiert. Hierfür wurden zunächst die genauen Fragestellungen der Studie festgelegt, sowie ein Fragebogen-basiertes Experiment als am besten geeignete Evaluationsmethode ausgewählt. Das entsprechende Experiment und die dazugehörigen Fragebögen wurden entworfen und vorbereitet. Abschließend wurde das Experiment durchgeführt und die Ergebnisse des Experiment für eine Auswertung erfasst. Der Bericht gliedert sich wie folgt: Zunächst wird in Kapitel 1 das Ziel des Projekts bzw. der Studie vorgestellt. Möglichen Fragestellungen und Hypothese werden in Kapitel 2 vorgestellt. Anschließend wird die Planung und Durchführung der Evaluation in Kapitel 3 beschrieben. Kapitel 4 beinhaltet eine Auswertung der Studie und Kapitel 5 beendet den Bericht mit einer Zusammenfassung und einem Ausblick auf zukünftige Arbeiten

Factors Affecting Young Consumers’ Intention to Purchase Upcycled Fashion Products – A Case Study in Vietnam

In this study, the author has given different basis to build hypothesis and research models to find out the factors affecting the Vietnamese young consumer's intention to purchase upcycled fashion products. Firstly, this paper focuses on studying the relationship between attitudes and purchase intentions. Secondly, the author studies the effects of factors on attitudes and purchase intentions. The main research subjects are factors affecting Vietnamese young consumer' intention to to purchase upcycled fashion products. Hence, this research was conducted based on survey results among 400 young people aged 18 to 34 in Hanoi and Ho Chi Minh city which are two big city in Vietnam. The authors used two statistical software, SPSS 26.0 and AMOS 20.0, to analyze the survey results. These tools help the authors analyze Cronbach's Alpha reliability coefficients, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), structural equation model (SEM). The results show that there was a positive relationship between young consumers' attitudes and purchase intention in the Vietnamese context. Attitude mediates the relationship between the influencing factors and purchase intention. Moreover, the study test the impact of five main factors including environmental concern, social value, uniqueness value, perception financial risk, and perceive quality risk. The environmental concern (β = 0.337) is considered as the strongest effect on consumers' attitudes towards products. The factors such as uniqueness value (β = 0.302) as well as social value (β = 0.216) also positively affect consumers' attitudes. On the other hand, perception financial risk (β = -0.168), and perceive quality risk (β = -0.280) negatively affect consumers' attitude

Using fly ash treated by NaOH and H2SO4 solutions for Hg2+ and Cd2+ ion adsorption.

This paper presents the results of adsorption ability of heavy metal ions (Hg2+ and Cd2+) by fly ash (FA) before and after treatment using NaOH and H2SO4 solutions.  Original- and treated FA were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscope (SEM). Specific surface area of FA before and after treatment was calculated by Brunauer – Emmett – Teller (BET) isotherm equation. The obtained results indicated that the morphology and specific surface area of FA changed clearly after treatment by acid or alkaline solutions. Adsorption capacity the Hg2+ and Cd2+ ion by FA was determined from data of UV-Vis spectra. After treatment, the adsorption capacity of ions by FA increased remarkably in comparison with non-treated FA. The FA treated by NaOH solution has the adsorption capacity higher than FA treated by H2SO4 solution. The maximum adsorption capacity of the FA treated by NaOH solution for Cd2+ and Hg2+ ions at room temperature is 28.97 and 14.60 mg/g, respectively. The equilibrium adsorption data were described by the Langmuir and Freundlich isotherm models. The results showed that equilibrium data were fitted well to the Langmuir isotherm. Keywords. Fly ash, treatment, adsorption capacity, heavy metal, Langmuir isotherm