Research on the Behavior of Gen Z on Using of Green Tourism: The Role of Knowledge Sharing

Purpose: The main objective of this study is to clarify the role of knowledge sharing about green tourism on tourists’decision to use tourism services.   Theoretical framework: This study applies the theory of planned behavior (TPB) as a basis framework to determine the factors that affect tourists’ decisions.   Design/Methodology/Approach: This study used quantitative research methods with data collected through questionnaires with respondents of young people in Hanoi, Vietnam. The results were 288 valid questionnaires processed with structural equation modeling (SEM) through SPSS and Amos software.   Findings: This study confirms the influence of attitude factors, and perceived behavioral control on Gen Z's decision to use green tourism services. Moreover, the study confirms the role of knowledge sharing about green tourism as an antecedent factor that shapes the mechanism influence of green perception of Gen Z in the relationship between attitude and decision to use green tourism services.   Research, practical & social implications: This study helps administrators have a deeper insight into the importance of knowledge sharing activities in training, recruitment and orienting sustainable development policies towards raising awareness about the goal of building sustainable development. building and developing a green economy in general and the tourism industry in particular.   Originality/Value: This study has shown that knowledge sharing builds and leads to positive attitudes about green tourism services. This is a new contribution of the study with providing evidence in identifying the primary factors in the relationship between attitudes and decisions to use green tourism services

都市縮小に伴う空き家と交通システムの効率化に関する研究

近年、空き家は多くの国にとって大きな課題の1つになっている。 2018年の日本の空き家総数は849万戸に達し、総住宅ストックの13.6％を占める。 OECD諸国と比較して、この数字は最も高く、社会の高齢化と低い出生率により、将来さらに増加すると予想されている。住宅市場を安定させるためには、空き家の比率を一定の水準、通常は5％未満に抑える必要がある。実際の空室率がこのしきい値を超えると、需給関係の不均衡を反映するだけでなく、都市の持続可能な開発に様々な悪影響を与える可能性がある。これらの悪影響としては、近隣の不動産の価値の低下、空室率と犯罪率の増加の刺激、劣悪な衛生状態と景観、税収の減少、および輸送システムの非効率的な運用が含まれる。したがって、空き家の発生のメカニズムを理解し、その影響を制御することが不可欠となる。これらの問題を解決するために、本研究は以下の2点を目的とする。まず、空き家とその決定要因の空間分布状況を調査する。次に、住宅利用との関係における輸送システムの効率性を評価する。これらの目的のケーススタディとして、北海道札幌市を選定した。分析手法として、局所空間的自己相関分析、部分最小二乗回帰（PLSR）、およびデータ包絡分析（DEA）を適用することにより、研究の目的を達成する。分析の結果は、高い住宅空室が中央地区と密集した地域に集中する可能性が高いことを強く示した。空室レベルは、市内中心部までの距離が長くなるにつれて減少する傾向にある。空き家に影響を与える特徴の中で、人口統計学的特性が最も強力な決定要因となった。その中でも、空き家を促進する影響として、単身世帯数属性が他の世帯の属性を上回った。同様に、人口の減少に伴う住居の供給過剰は、空室の増加に集中的な影響を及ぼしていた。対照的に、住宅所有率の増加と建物内の統合駐車場は、空き家の数を減らすことが分かった。また、DEAの分析によると、札幌市、特に駐車場やエリアの交通サービスの余剰は、住宅の充填率の不足によるものであった。研究成果は、研究論文としてだけでなく、持続可能な開発を達成するための政策立案にも貢献すると考えられる。In recent years, vacant houses have become one of the major challenges for many countries. In 2018, the total number of vacant houses in Japan reached 8.49 million units, accounting for 13.6% of the total housing stock. Compared to OECD countries, this figure was the highest and was expected to further increase in the future due to social aging and the low fertility rate. For a stable housing market, it is necessary to keep the ratio of the unoccupied dwellings within a certain level, usually less than 5%. When the real vacancy rate exceeds this threshold, it may not only reflect the imbalance in the supply-demand relationship but also negatively affect the sustainable development of the urban. These negative influences include the neighbouring properties’ value reduction, stimulation of the increased vacancy and crime rates, poor sanitation and landscape, decline in tax revenue, and the inefficient operation of the transportation system. Therefore, it is essential to understand the mechanism of vacant dwellings occurrence and to control its effects. To solve these problems, this study aims at two points. First, it examines the spatial distribution of vacant houses and their determinants. Second, it evaluates the transportation system’s efficiency in the relationship to housing utilization. The city of Sapporo, Hokkaido, was chosen as a case study for these objectives. By conducting the local spatial autocorrelation analysis, partial least squares regression (PLSR), and data envelopment analysis (DEA), the study’s objectives are achieved. The results highlight that the high housing vacancy would likely concentrate in the central district and the dense areas. The vacancy level then decreases with the increase in the distance to the city’s center. Among the affecting features, the demographical characteristics were the strongest determinants. In which, the number of single households outperformed the other in stimulating the vacant houses. Likewise, the oversupply of dwellings along with the decline of the population had an intensive effect on the rise of vacancy. By contrast, the increase in the housing ownership ratio and the integrated parking lots in the buildings would reduce the number of vacant dwellings. Moreover, the DEA analysis shows that the shortfall in the housing filling rate accounted for the surplus in transportation services in the city of Sapporo, especially the car parking sites and areas. The outcomes of the study would contribute to not only the literature but the policy-making in achieving sustainable development.室蘭工業大学 (Muroran Institute of Technology)博士（工学

Uma pesquisa-ação de 3 anos em uma universidade vietnamita: Alunos como cogeradores de conteúdo das aulas

In the context of the 4th Industrial Revolution with unlimited technological advancement and innovation, how can educators innovate their teaching and facilitate their students in their learning process, so that students can accumulate required skills and achieve the set learning outcomes of each course they take? In order to find out the answer, the authors have revised some literature concerning BYOD trend, active learning strategies, flipped classroom and learner-generated content as the theoretical base for their study. Action research has been conducted at a Vietnamese university with the participation of English-majored students in Theory of English Translation and Interpreting classes from 3 different intakes. The findings include students’ positive perception towards the content-generation practices. Some achievements and challenges in the teaching and learning process have also been reported. This paper also recommends further studies so that the practice could be utilized to the best outcomes.En el contexto de la Cuarta Revolución Industrial con un avance tecnológico e innovación ilimitados, ¿cómo pueden los educadores innovar su enseñanza y facilitar a sus estudiantes su proceso de aprendizaje, para que los estudiantes puedan acumular las habilidades requeridas y lograr los resultados de aprendizaje establecidos en cada curso que toman? Para encontrar la respuesta, los autores han revisado cierta literatura sobre la tendencia BYOD, las estrategias de aprendizaje activo, el aula invertida y el contenido generado por el alumno como base teórica para su estudio. Se llevó a cabo una investigación de acción en una universidad vietnamita con la participación de estudiantes con especialización en inglés en clases de Teoría de la traducción e interpretación en inglés de 3 tomas diferentes. Los hallazgos incluyen la percepción positiva de los estudiantes hacia las prácticas de generación de contenidos. También se reportan algunos logros y desafíos en el proceso de enseñanza y aprendizaje. Este documento también recomienda más estudios para que la práctica pueda utilizarse con los mejores resultados.No contexto da 4ª Revolução Industrial, com avanço tecnológico e inovação ilimitados, como os educadores podem inovar seu ensino e facilitar seus alunos em seu processo de aprendizagem, para que os alunos possam acumular as habilidades necessárias e alcançar os resultados de aprendizagem definidos de cada curso que fazem? Para encontrar a resposta, os autores revisaram alguma literatura sobre a tendência BYOD, estratégias de aprendizagem ativa, sala de aula invertida e conteúdo gerado pelo aluno como base teórica para seu estudo. Uma pesquisa-ação foi realizada em uma universidade vietnamita com a participação de alunos formados em inglês nas aulas de Teoria da Tradução e Interpretação do Inglês de 3 diferentes entradas. Os resultados incluem a percepção positiva dos alunos em relação às práticas de geração de conteúdo. Algumas conquistas e desafios no processo de ensino e aprendizagem também foram relatados. Este artigo também recomenda mais estudos para que a prática possa ser utilizada para os melhores resultados

Driving Factors for Green Innovation in Vietnamese Construction Enterprises

Purpose: The aim of this study is to examine the influences of different factors on green innovation in Vietnamese construction enterprises.   Theoretical framework: The theoretical framework is built upon the resource-based view, the model of organizational innovation, and stakeholder theory.   Design/methodology/approach: The research carries out a literature survey related to construction enterprises, then empirical analysis is conducted among 450 employees and managers at all level working in this field with the results analyzed using Cronbach’s Alpha analysis, exploratory factor analysis, pearson correlation analysis, linear regression analysis and One - way ANOVA analysis.   Findings: The results demonstrate that using renewable energy is well represented for green innovation in the Vietnamese construction industry and quantitative results also show positive impacts of all factors studied on green innovation: Green dynamic capabilities, Green creativity, Green knowledge sharing, Corporate environmental ethics, Pressure from industry competitors and regulators. In addition, the result affirmed there are statistically significant differences in the level of green innovation between construction enterprises of size and age, but not types of firm.   Research, Practical & Social implications: The study proposes solutions for both enterprises and regulators – one of the external stakeholders to develop green innovation in the construction sector. 

Professional development for ESL lecturers – a struggle to integrate ICT into teaching

Information and Communications Technology (ICT) plays a crucial role in our daily life. In fact, students are considered digital citizens and have become accustomed to being always connected to their devices and the Internet. Given the importance ICT plays in our lives, education institutions nowadays have a duty to incorporate ICT into teaching and learning in order to better prepare students for 21st Century skills and careers. Although certain technological equipment may be available in classrooms, there are several external and internal factors that affect the proper implementation of ICT in classrooms. In preparing students to be career-ready, ICT integration is imperative. This paper will discuss factors affecting ESL lecturers’ professional development in terms of ICT application in the classroom. A total of 61 lecturers from 12 non-English-majored universities in Vietnam voluntarily completed this quantitative study’s survey questionnaire. The findings show that although ESL lecturers are aware of the significance of some factors affecting ICT implementation in classrooms, they are struggling to learn, to adapt, and to integrate ICT into their classrooms

Professional development for ESL lecturers – a struggle to integrate ICT into teaching

Information and Communications Technology (ICT) plays a crucial role in our daily life. In fact, students are considered digital citizens and have become accustomed to being always connected to their devices and the Internet. Given the importance ICT plays in our lives, education institutions nowadays have a duty to incorporate ICT into teaching and learning in order to better prepare students for 21st Century skills and careers. Although certain technological equipment may be available in classrooms, there are several external and internal factors that affect the proper implementation of ICT in classrooms. In preparing students to be career-ready, ICT integration is imperative. This paper will discuss factors affecting ESL lecturers’ professional development in terms of ICT application in the classroom. A total of 61 lecturers from 12 non-English-majored universities in Vietnam voluntarily completed this quantitative study’s survey questionnaire. The findings show that although ESL lecturers are aware of the significance of some factors affecting ICT implementation in classrooms, they are struggling to learn, to adapt, and to integrate ICT into their classrooms

BISMUTH FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF BLOOD LEAD AND PRELIMINARY ASSESSMENT OF BLOOD LEAD LEVEL IN THE RESIDENTS AT CANH DUONG VILLAGE, THUA THIEN HUE PROVINCE

Joint Research on Environmental Science and Technology for the Eart

Linking Ethical Leadership to Employee Creative Performace: The Role of Leader-Member Exchange and Work Engagement

Purpose: The purpose of this research is to investigate the mediating role of leader-member exchange (LMX) and work engagement in the relationship between ethical leadership and creative performance.   Theoretical framework: The study is based on the theoretical foundation that ethical leadership positively influences creative performance. It further posits that this relationship is mediated by both leader-member exchange (LMX) and work engagement.   Design/Methodology/Approach: Data for this study was collected from a Vietnamese service firm, with a sample comprising 78 leaders and 354 employees. The collected data was analyzed using structural equation modeling (SEM) to examine the proposed relationships.   Findings: The findings of the study indicate a significant and positive correlation between ethical leadership and creative performance. Additionally, the study reveals that ethical leadership exerts an influence on both leader-member exchange (LMX) and work engagement, which subsequently enhance employees' demonstration of creativity in their work.   Research, practical & social implications: This research sheds light on the mediating mechanisms through which ethical leadership impacts creative performance. The findings highlight the importance of fostering positive leader-member relationships and promoting work engagement in order to enhance employees' creative behaviors. Practically, the study suggests that organizations should prioritize the development of ethical leadership qualities to foster a creative work environment. Moreover, the research contributes to the broader social implications by emphasizing the significance of ethical leadership in promoting creativity and innovation within organizations.   Originality/Value: This research contributes to the existing literature by examining the mediating role of leader-member exchange and work engagement in the relationship between ethical leadership and creative performance. The study provides valuable insights into the mechanisms through which ethical leaders can enhance creativity in the workplace. The findings of this research contribute to the understanding of the importance of ethical leadership and its impact on organizational outcomes, thereby adding to the originality and value of the study

Sustainability assessment of coastal ecosystems: DPSIR analysis for beaches at the Northeast Coast of Vietnam

The Northeastern coastal zone of Vietnam possesses high biodiversity and rich ecosystems like coral reefs, seagrasses, beaches and mangroves. It also includes the Ha Long Bay Natural Heritage site (UNESCO 1994) and the Cat Ba Biosphere Reserve (MAB/UNESCO 2004) as well as hosts the Economic Development Triangle (Hai Phong-Ha Noi-Quang Ninh) established by the Government of Vietnam. As one of the coastal ecosystems, sandy beach ecosystems attracted more attention during recent decades because of their essential role for human welfare and in environmental protection. A few studies concentrated on sustainable management of sandy beach based on environmental and ecological protection and enhance the beach quality for recreational use. The DPSIR (Driving force Pressure State Impact Response) framework describes the logical interaction among systems and finds out the cause and consequence of social-economic development activities to the environment and resources. In this study, the DPSIR was applied on the sandy beaches in the Northeastern coast of Vietnam to reveal the main environmental problems on sandy beaches including the decline of the natural landscape around the beaches and the degradation of the environment. It also pointed out that tourism development in association with urbanization and sea reclamation is the main driving forces for environmental degradation of the sandy beaches. Therefore, local authorities of Hai Phong and Quang Ninh should take into account several main responses to policies on inter-province coordination and managerial measures with a wider scope, which integrate socio-economic and physical factors, proximity, accessibility, and neighborhood to manage healthy coastal ecosystems and sandy beaches in particular. An integrated coastal management program for the Northeastern coast of Vietnam needs to be developed and carried out to follow the laws of Vietnam as well as to meet local urgent requirements

Model predictive direct power control of three-level T-type inverter-fed doubly-fed induction generator for wind energy system

The paper proposes a simplified direct power control strategy of a doubly-fed induction generator fed by a three-level T-type inverter based on finite control set model predictive control. A mathematical model based on grid voltage orientation was employed to determine the predictive values of the stator flux, rotor current, and capacitor voltages for all feasible rotor-side inverter output voltages. The active and reactive powers were calculated by using the grid voltage and the rotor current. A cost function was applied to track the active and reactive powers, maintain the balance of capacitor voltages, and reduce the common-mode voltage. The best switching control input was chosen by minimizing the cost function and implemented to the inverter. Different operating conditions of wind turbine systems were studied with Matlab/Simulink environment. The simulation results validate the improved performance of the proposed method compared with the classical control in terms of transient response and steady-state conditions