Insights into the magnetic origin of CunCr (n= 9÷11) clusters: A superposition of magnetic and electronic shells

Interests in Cu-Cr sub-nanometer systems have been increasing due to the recently-found icosahedral Cu12Cr cluster as a superatomic molecule, where the 3d-Cr and 4s-Cu electrons can phenomenologically form the 18-e molecular shell (1S21P61D10) of Cu12Cr. In this report, we set out to investigate the energetically-preferred geometries and stabilities of CunCr (n = 9÷11) clusters using the density-functional-theory calculations. It is found that not all of 3d-Cr electrons involve in the formation of the cluster shell and the remaining localized ones cause the magnetic moment of the clusters, which is different from what was believed

The Determinants of Financial Analysts' Performance: Analyses using Quasi-Natural Experiments

This thesis consists of three studies that utilize financial analyst career events as quasi-natural experiments to examine the factors that explain analyst forecasting performance. The purpose of this thesis is to minimize endogeneity problems that have hampered the financial analyst literature and at the same time add to the literature by showing that important life events can have a significant impact on analyst forecasting performance. First, I examine how employment change affects analyst herding behavior in their forecasts. My results show that analysts exhibit stronger herding behavior following an employment change. Specifically, they have a greater tendency to imitate other analysts’ earnings forecasts. Also, relative to their peers, they are slower in issuing forecasts and, as a result, issue revisions less frequently. This has a consequential negative effect on the market impact of their forecasts. I argue that the results are due to the need for newcomers to contend with the unfamiliarity of their new workplace environment and demonstrate that my results hold across several robustness tests, including a quasi-natural experiment using brokerage firm M&As that utilizes the estimation of an average treatment effect. This study raises a significant human resource question on how brokerage firms should support employees who have recently switched jobs. Second, I examine the impact that work specialization has on the performance of superior and inferior analysts. My results show that the forecast accuracy of superior analysts improves when their coverage is more concentrated within a few industries. However, there is no evidence of an equivalent improvement for inferior analysts. I argue that this is due to superior analysts being better able to utilize intra-industry relevant information when pricing stocks within the same sector, leading them to benefit more viii from specialization. My results are robust when I conduct quasi-natural experiments by utilizing brokerage firm M&As to capture changes to the work specialization of analysts who continue to work in the merged firms after the M&A events. The findings of this study have implications for how brokerage firms allocate coverage to analysts with different abilities. Third, I examine a channel that can explain analyst forecast pessimism. Specifically, I investigate the forecasting performance of analysts who have been rehired after experiencing a recent job loss following their brokerage firm closures and find that their forecasts will be more pessimistic relative to both their peers and actual earnings. Importantly, this leads to a decline in the accuracy of their forecasts at their new job. These results are theoretically supported by the career transitions literature, which shows that a job loss will affect the mental disposition of an employee and which I argue leads to analysts providing more pessimistic recommendations. This raises an important question as to how brokerage firms should support new employees who have recently experienced a job loss to avoid any negative impact it might have on their performance.Thesis (Ph.D.) -- University of Adelaide, Business School, 201

Assessing the price and output effects of monetary policy in Vietnam:evidence from a VAR analysis

Using monthly data, we perform a vector-autoregressive analysis to measure the effects of monetary policy on the Vietnamese economy. We concentrate our attention on the period following the introduction of the Law on Central Bank in January 1998 (which brought the national monetary policy and its objectives in line with international practices). Contrary to previous studies on Vietnam, we find evidence suggesting that monetary policy (through the manipulation of interest rates) is an effective policy tool in stabilizing prices. However, credit growth tends to induce inflationary pressures. In addition, we find that an expansion of broad money supply leads to an increase in industrial production

RESEARCH TRENDS ON COMMUNITY-BASED TOURISM IN THE PERIOD 2013 - 2023

Community-based tourism (CBT) has been around since the 1970s and so far, has grown in popularity in most continents. This study systematically evaluates and generalizes theoretical and practical issues on CBT based on 87 related articles published in scientific journals under the Scopus system from 2013 to 2023 through the application of content analysis methods. The results also show that research in this area has different research areas and mainly uses qualitative methods. The literature review identified a number of key themes including: (1) benefits of CBT development, (2) community and stakeholder engagement, (3) advantages and barriers in CBT development, (4) community perceptions about CBT, and (5) sustainable CBT development. The article has analyzed research trends on CBT: theory and application.  Article visualizations

CHARACTERISTICS OF QUATERNARY SEDIMENTARY FACIES IN RELATION TO WATER BEARING CAPACITY OF AQUIFERS AND AQUICLUDES IN RED RIVER DELTA, VIETNAM

Joint Research on Environmental Science and Technology for the Eart

Vocational Orientation and the Need for Establishing Career Counselling Office in Vietnamese Schools

School psychology is a field that has been receiving a lot of attention recently in Vietnam as it prepares to restructure the general education curriculum. In particular, vocational orientation and career counseling are most concerned due to the emergence of new subjects in the educational curriculum - Experimental and Vocational Orientation Activities. The objective of this study is to investigate the current situation of vocational orientation problems and the need for career counseling of Vietnamese high school students to provide evidence to develop the school counseling activities and the School Psychology in Vietnam. This is a quantitative study used a questionnaire to examine the current situation of vocational orientation problems and the need for career counseling of 1200 high school students in Vietnam to illustrate the importance of vocational orientation work. The results showed that Vietnamese high school students faced many vocational orientation problems and wanted support from school counselors. But the reality did not meet the needs of students: Vietnamese schools lacked a team of school counselors both in quality and quantity, also lack of school counseling offices in almost high schools. This result is expected to contribute to the development of the School Psychology in Vietnam, but firstly, to promote the establishment of counseling office at least one office per school

Investigating the diversity of resistant starch in Vietnamese rice collection

The rapid increase of obesity and type 2 diabetes has recently posed an enormous burden on the healthcare system worldwide. Resistant starch (RS) in rice can escape digestion by enzymes in the small intestine, making its calories unavailable for cells to use. As a result, RS can be used by diabetes patients to prevent diabetes and for obese individuals who do not want extra energy. In our study, 75 Vietnamese rice accessions originating from diverse ecosystems were chosen as plant materials to investigate the diversity of RS content in this collection. The Megazyme kit was used to measure the amount of RS. The release of quinonimine was measured using a spectrophotometer at 510 nm. The results showed that approximately 70% of Vietnamese rice accessions had RS content ranging from 0.015 to 0.2% while only 4% of samples had RS content ranging from 0.6 to 0.8%. The Indica subgroups had significantly higher RS content than the Japonica subgroup. Higher RS content was found in medium- and short- grain rice rather than in long grain. Finally, rice plants grown in rainfed lowlands (RL) and irrigated ecosystems had higher RS content than those grown under mangrove and upland ecosystems. Our results firstly give information about the diversity of RS in Vietnamese rice and secondly may contribute to the field of nutrition by developing a suitable rice-based diet for patients with diabetes or obesity

Factors influencing well-being of special education teachers in Ho Chi Minh City, Vietnam

Increasing numbers of special education teachers are leaving jobs across different cultures and countries, which leads to teachers’ well-being has gotten more attention over the past decades. This study aims to investigate the levels of well-being and explore the factors influencing well-being in special education teachers in Vietnam. Special education teachers (N = 81) from three special education schools and a special education Centre in Vietnam were involved in the current study. Descriptive analysis, Pearson correlation, and multiple linear regression were used to examine the levels of well-being and determine whether life satisfaction, job satisfaction, self-compassion, and salary and benefits influencing the well-being levels among teachers. The results show a positive correlation between well-being and job satisfaction, life satisfaction, self-compassion, and salary and benefits. Additionally, multiple regression analysis reveals that life satisfaction, self-compassion, and salary and benefits influence well-being levels positively, meaning that teachers with increased life satisfaction, self-compassion, and salary and benefits have higher levels of well-being. The present findings contribute to the general discussion about the nature of well-being and the influential factors in teachers’ well-being. It is highly suggested that organizations/schools provide appropriate policies and increase the special education teachers' well-being in Ho Chi Minh City, Vietnam

Polyamorphism and Two State Model in Liquid GeO2_{2} under Compression: Insight from Visualization of Molecular Dynamics Data

The polyamorphism and two-state model based on the coordination number distribution in liquid GeO$_{2}$ at 3200~K and in a wide pressure range are investigated by molecular dynamics simulation. Results show that the structure of liquid GeO$_{2}$ mainly consists of GeO$_{x}$ coordination units $(x=4,5,6)$ and OGe$_{y}$ linkages $(y=2, 3)$. The distribution of OGe$_{y}$ linkages in network structure is not uniform but tends to form clusters of OGe$_{y}$. The cluster of OGe$_{2}$ will form low-density phase region, conversely the cluster of OGe$_{3}$ will form high-density phase region. In other word, under compression, in the liquid GeO$_{2}$ coexist two states: low-density and high-density. The size of phase regions significantly depends on compression

Factors Affecting Cooperation in the International Supply Chain of Seafood Enterprises: the Case of Vietnamese

Purpose: The purpose of this research is to analyze and evaluate factors affecting cooperation in the international supply chain of Vietnamese seafood enterprises.   Theoretical framework: Operations in international business context are associated with high risks, so cooperation in supply chain helps to improve management flexibility. On the other hand, acccording to the theory of resource dependency, resource sharing and information sharing strategies can affect the quality and the level of cooperation among supply chain partners.   Design/methodology/approach: To achieve the aim of this study, a literature survey related to supply chain and supply chain cooperation is carried out, and empirical analysis is conducted among 327 partners in seafood industry with the results analyzed using Cronbach’s Alpha analysis, exploratory factor analysis (EFA), and linear regression analysis (RA).   Findings: Research results have confirmed that there are six main factors directly affecting the international supply chain cooperation of Vietnamese seafood enterprises including: (1) Trust; (2) Power; (3) Distance; (4) Government policy; (5) Cooperation strategies and (6) Information sharing.   Research/Practical & Social implication: The encouraging policies and simplified export regulations are to be implemented by the government, VASEP and enterprises so the knowledge about international supply chain cooperation will be promoted with the help of comprehensive future research directions.   Originality/value: This is literally one of the first research works in Vietnam to incorporate the information sharing component into the model of affecting factors for international supply chain cooperation. Regardless of business uncertainties, the study shed new light on supply chain cooperation and promote firms to gain an edge in the global marketplace