CAMELLIA THUANANA (CAMELLIA SECT. CHRYSANTHA) – A NEW SPECIES FROM THE CENTRAL HIGHLANDS, VIETNAM

Camellia thuanana, a new species of the genus Camellia L. (Theaceae) is described and illustrated from the Central Highlands, Vietnam. Morphological features of this species are small flowers and pedicellate; leaves stalked, anastomosing venation, blades oblong-elliptic to elliptic, sparsely hirsute along the midrib below; pedicel very short; bracteoles 2–3, triangular; sepals 4–(5) in opposite pairs; corolla light greenish-yellow color; petals 7–8, glabrous; androecium 190–200 stamens, light yellow, in 3–4 circles; gynoecium 3, ovary ovoid and pubescent; styles 3, free to the base, and glabrous. C. thuanana resembles C. thuongiana in some morphological characteristics. C. thuanana is classified into sect. Chrysantha by styles completely free, flowers yellow, ovaries 3–5 locular, and partially connate. The IUCN Redlist Category of C. thuanana was assessed as Critically Endangered (CR)

Website Innovation Affects Student Satisfaction

University websites are more and more essential in communicating, exchanging information, providing educational services, and implementing marketing programs. Innovating the website is an important solution to improve the quality of educational services and attract students. This study was conducted to demonstrate the role of website innovation on student satisfaction. Research data were collected using quota sampling with 280 students studying at universities in Vietnam. Qualitative and quantitative research are used to test the research hypotheses. Applying structural equation modeling (SEM), the study shows that website innovation positively affects students’ perceived ease of use, perceived usefulness, and trust. Besides, perceived ease of use, perceived usefulness, and trust positively influence student satisfaction. This study has demonstrated that website innovation affects student satisfaction through the mediating role of perceived ease of use, perceived usefulness, and trust

Determinants Influencing Accounting Quality of Transportation Service Firms

The study aimed to determine what determinants influencing the accounting of transportation service firms working the area of Da Nang of Vietnam. A study model was developed, investigated and analyzed with the involvement of 250 transportation service firms in Da Nang. The results show five determinants influencing the accounting works including industry characteristics; legal guidance; material facilities for accounting; interest in accounting of business owners; accountants’ qualifications. Among them, the two most important determinants influencing the quality of the accounting were legal guidance and interest in accounting of business owners. Based on the findings, some recommendations were made to improve the quality of accounting of transportation service firms. Keywords: Determinants, accounting, transportation services DOI: 10.7176/RJFA/11-4-08 Publication date: February 29th 202

A Research on the Quality of Public Transportation Services by Bus in Vietnam

This study was conducted to assess the status of the quality of public passenger transport services by bus in Hanoi. Data were collected from regular passengers using buses as a means of transportation in the city, including passengers standing at stations, waiting shelters and on vehicles to make trips and students of some universities who use buses as a means of transportation. We employ descriptive statistics and hierarchical analysis to learn about the topic of research. The results indicate that the quality of public transport services by buses in Hanoi, which was judged by passengers quite well. In particular, the safety level, convenience, security and hygiene is up to 70%, which was higher than the highest quality level. Quality of fast level and reliability are low. Keywords: quality of services, public passenger transport, buses, Vietnam. DOI: 10.7176/RJFA/10-13-04 Publication date:July 31st 201

Data Structure Model on the Quality of Public Passenger Transport Services by Bus in Vietnam

The system of managing public passenger transport services (PPTS) by bus is a complex system, involving infrastructure, facilities, management and service communication activities between passengers and transport systems. In particular, quality information is the most important factor, providing necessary data for analysis, setting out measures to improve quality to meet the needs of passengers and meet the requirements of related parties. According to the peculiarity of the service, this study selects a database structure model to guide the process of computerizing the management of quality of PPTS by bus in urban areas in Vietnam. The results show that four database systems reflecting the quality information of the infrastructure, means of transport, transport operation and passenger service and each database system is structured by components that ensure proper implementation of QM process according to the continuous quality improvement cycle. The components of each database system are dispersed according to the scope of management to ensure the consistency for the quality management process and facilitate the collection, processing and distribution of information of related parties. Keywords: Quality, transport services, public passengers, Vietnam. DOI: 10.7176/JESD/10-10-13 Publication date:May 31st 201

Investigating the diversity of arbuscular mycorrhizal fungi from Gymnema sylvestre and Curcuma longa in Vietnam

Arbuscular mycorrhizal (AM) fungi are soil eukaryotes that belong to phylum Glomeromycota and have symbiosis with the vast majority of higher plants’ roots. AM fungi are believed to be coevolved with terrestrial plants, the abundance and diversity of AM fungal communities as a result are host plant dependent. A survey of AM fungi from the rhizospheres of medicinal plants in Northern Vietnam including gurma Gymnema sylvestre and turmeric Curcuma longa was carried out. From the extracted total DNAs of the medicinal plants’ rhizosphere soil samples, 35 mycorrhizal fungal species were identified by analyzing small subunit rRNA gene sequences. Result revealed that genus Glomus is the most abundant in the AM communities of G. sylvestre and C. longa, followed by Gigaspora and Acaulospora. Besides, AM species belonging to genera Scutellospora, Diversispora and Rhizophagus were observed in almost all rhizosphere soil samples. The spore counting by wet sieving and decanting method uncovered a variation in AM spore density of gurma and turmeric rhizosphere. In general, AM species were found more abundantly and more diverse in collected rhizome soil samples of C. longa (27 species belonging to 10 genera) than of G. sylvestre (17 species found belonging to 7 genera). The observed difference in AM communities of G. sylvestre and C. longa supports evidence for the dependence of AM fungal species on host plants, and indicates that AM fungi may have relation to the host plants’ secondary metabolite production

Determining the Price of Software Products in Software Manufacturing Firms in Vietnam

From the early 2000s to the present, Vietnam has made efforts to facilitate the development of information technology industry and to promote the growth of it market in general and software in particular. Many policies and measures to encourage the development of software firms have been issued by the government. However, despite enjoying favorable conditions from the State's support policy, software firms still face many difficulties in product consumption. In addition to illegally copying software and copyrighted software that have been severely damaged, causing great harm to manufacturers, there are also situations where products are not sold with the right value. Currently, in Vietnam there is not yet a method of calculation, as well as a complete unified accounting for the determination of software product price, each firm follows its experience. Based on data collected, both primary and secondary, we synthesize, evaluate, compare and analyze the research topic. The results show that the determination of software product price at software manufacturing firms is not very reasonable; the recognition and allocation of core software value has not been proper. So based on the findings, some recommendations are given for improving the determination of product prices at software manufacturing firms in the context of developing countries like Vietnam. Keywords: Software, core software, intangible fixed asset, license. DOI: 10.7176/EJBM/11-14-12 Publication date:May 31st 201

Explaining the Organizational Commitment of Banking Employees

This study aims to demonstrate the factors influencing the organizational commitment of banking employees. The study surveyed 232 employees working in the commercial banking system in Vietnam. By combining qualitative and quantitative research methods, the study has shown that employees’ commitment to the organization is influenced by 8 factors, including the work environment, corporate culture, organizational support, job nature, training and development, income and benefits, peer relationships, and leadership style. Among these factors, leadership style is the most significant factor affecting employees’ commitment to the organization. The research results contribute to providing insights for managers to enhance the employees’ commitment to the organization in the banking sector

Struvite formation from wastewater: affecting factors and nutrient recovery

Never human being has to face such a serious lack of phosphorus and pollutants from human activities. Nutrient recovery from wastewater is a new trend which attracts the interests of several researchers. Extraction of the nutrients, based on struvite crystal from wastewater as nutritious sources, has been assessed as an urgent solution to tackle the water pollution issue. This review focused on feature characteristics of struvite as a chemical fertilizer for plant, struvite formation process in various wastewaters, which is related to physio-chemical conditions, and potential of applying this idea into practice