bluuebunny/crossref_metadata_2025 huggingface dataset:
Vliyaniye robotizirovannykh trenirovok na biomekhaniku golenostopnogo sustava u patsiyentov s postinsul'tnym parezom
Authors: Клочков А. С. , Зимин А. А. , Хижникова А. Е. , Супонева Н. А. , Пирадов М. А.
Published: October 2020

Klyuchevym faktorom narusheniy pokhodki posle ostrykh narusheniy mozgovogo krovoobrashcheniya (ONMK) yavlyayetsya narusheniye dvizheniy v golenostopnom sustave (GS), privodyashcheye k formirovaniyu patologicheskoy sinergii. V nastoyashcheye vremya pri robotizirovannykh trenirovkakh khod'by ispol'zuyut privody tazobedrennogo i kolennogo sustavov. Odnako po dannym literatury net yedinogo mneniya ob ikh vliyanii na dvizheniya v GS. Tsel'yu issledovaniya bylo izuchit' vliyaniye robotizirovannykh trenirovok khod'by na dvizheniya GS u patsiyentov s postinsul'tnym parezom. V issledovanii prinyalo uchastiye 22 patsiyenta s ONMK polusharnoy lokalizatsii. Dlya otsenki dvigatel'noy funktsii primenyali klinicheskiye shkaly i videoanaliz khod'by. Vsem patsiyentam provodili kurs iz 11 robotizirovannykh trenirovok khod'by. Na fone trenirovok vyyavleno uvelicheniye obshchego balla po shkale Fugl-Mayyera so 146,5 do 152 ballov (p < 0,05) i otdel'no dlya nizhney konechnosti s 18 do 20,5 ballov (p < 0,05), a takzhe snizheniye myshechnogo tonusa razgibateley GS s 2,5 do 2,0 ballov po modifitsirovannoy shkale Eshvorta (p < 0,05). Na fone robotizirovannykh trenirovok otmecheno uvelicheniye dlitel'nosti fazy opory patsiyentov s 28,0 do 33,5% ot tsikla shaga (TSSH). Krome togo, osnovnym razlichiyem struktury TSSH do i posle kursa trenirovok stalo nalichiye trekh chastey shaga vmesto pyati, chto podtverzhdayet konsolidatsiyu goniogramm patsiyentov v periode ot 1 do 61% TSSH. Sravneniye znacheniy uglov do i posle pokazalo dostovernyye razlichiya tol'ko po mezhkvartil'nomu intervalu (r < 0,05). Avtory prishli k vyvodu, chto robotizirovannyye trenirovki s primeneniyem aktivnykh privodov dlya tazobedrennogo i kolennogo sustavov oposredovanno sposobstvuyut izmeneniyam kinematicheskikh parametrov GS za schet priblizheniya pokazateley patterna k nekoyemu usrednennomu shablonu dvizheniy.
Modeling and Study of Various Types of Inertial Mass Suspensions in the Sensitive Elements of Micromechanical Devices
Authors:   National Research University of Electronic Technology, Moscow, Russia, Aung Ye Ko Ko , Simonov B.M. ,   National Research University of Electronic Technology, Moscow, Russia, Timoshenkov S.P. ,   National Research University of Electronic Technology, Moscow, Russia
Published: October 2020

In microelectromechanical devices and systems (MEMS), capacitive micromechanical accelerometers (MMA) are used in airbag systems, machine vibration monitoring, navigation, seismology, microgravity measurements, etc. The most important structural elements of the sensing element are suspensions, through which the inertial mass is connected to a fixed frame. To ensure reliable operation and stability of sensor parameters, it is necessary to take into account the results of external factors already at the design stage of the sensor structure, especially its sensitive element, and at subsequent stages of the life cycle. In this work, the characteristic structures of suspension elements, which are made of silicon with different crystallographic orientations, are investigated and the results of modeling their most important parameters are presented. The simulation has been performed using the ANSYS program. The natural frequencies of inertial mass oscillations, residual mechanical stresses in the structural elements of silicon sensitive element with different crystallographic orientations have been calculated upon impact (up to 10 000 g). The natural vibration frequency changes and the dynamics of the change in the residual mechanical stress in the suspension elements with a temperature change in the range from +150 to –150 °C for a short time interval of 10 s, which corresponds to thermal shock, investigated. The results of studies of residual mechanical stresses arising upon impact and natural frequencies of inertial mass oscillations have been made it possible to develop recommendations on the choice of the design of suspension elements made of silicon, providing high sensitivity and stability of MMA parameters. It has been established that the use of folded springs with a rectangular or round cross-sectional shape with a suspension element thickness of 40 μm provides the highest temperature stability of the parameters. The results obtained are useful for developing real designs of MMA and other micromechanical devices
Conceptualizing Challenges to Electronic Human Resource Management (e-HRM) Adoption: A case of Small and Medium Enterprises (SMEs) in Tanzania.
Authors: Shah Namrata , Michael Francis , Chalu Henry
Published: October 2020

Most of the Small and Medium-sized Enterprises (SMEs) in the developing countries are yet to espouse and witness the full potential of electronic Human Resource Management (e-HRM) in their business operations despite its popularity in the developed countries. SMEs indispensable role in economic growth regarding employment creation and their contribution to GDP is globally acknowledged. A successful adoption of e-HRM may be the catalyst for the growth of Tanzania and many developing countries. Unfortunately, the application of e-HRM by the SME sector in Tanzania lacks depth and has been scrimpy. Numerous reasons and factors account for the low adoption rate of e-HRM by Tanzanian SMEs. This study aspires to address this scantiness by investigating e-HRM adoption to overcome the barriers that confront the SME sector in their quest to adopt e-HRM. Financial barrier was the most relevant among the five group of barriers. However, technical and Internet security prove to impede the adoption too. Thus to stimulate the adoption of e-HRM to increase productivity and enhance global competiveness, stakeholders and the government should invest in e-HRM and its components. Specifically, the paper delineates challenges of e-HRM adoption. A systematic desk review presents the evolution of prominent TAM model to fit contextual requirements and research advancement. This review thus culminates in a synthesized conceptual framework useful in research on e-HRM in the SMEs.
Contemporary Business Transformation Trends and Opportunities in Corporate Companies in the Global Economy
Authors: Prabhu J. Jose
Published: October 2020

Looking forward, 2020 will be a time of some retribution for digital initiatives and that is eventually uplifting news. 2020 will even now observe the fast scaling of advanced activities across businesses. The previous barely any a long time in business have been described by a progression of basic moves in the manner organizations work and structure themselves. As they continued looking for more prominent efficiencies, economies of scale or lower costs, organizations have held onto patterns, for example, redistributing, offshoring, and mergers and acquisitions, while fast mechanical advancement has changed the manner in which data is shared and imparted, and the manner in which business cycles and exchanges are directed. In spite of the fact that patterns, for example, offshoring, mergers and acquisitions, and enormous scope IT ventures can have various targets and require various aptitudes, they are largely instances of business change. Each kind of task expects heads to set clear goals, to guarantee that those points are perceived by everybody in the association, and to zero in cautiously on the usage stage so the destinations are accomplished. To put it plainly, each venture is tied in with overseeing huge scope change – something that in the present exceptionally circulated, worldwide association is a perplexing and requesting undertaking. In light of an overview and methodical surveys investigates the patterns that are driving business change and takes a gander at the difficulties and openings introduced by this indispensable part of contemporary business.
Model Pembelajaran Means-Ends Analysis dalam Menumbuhkembangkan Kemampuan Problem Solving dan Productive Disposition
Authors: Aras Andi
Published: October 2020

Abstract:The problem solving and productive disposition ability of students is still low due to the inaccuracy of the learning model used by teachers in learning mathematics. This study aims to determine the effectiveness of the Means-Ends Analysis (MEA) learning model in developing students' problem solving and productive disposition abilities. This type of research is pre-experimental research with One-Group Pretest-Posttest Design. The data analyzed are the results of students' mathematical problem solving and productive disposition data of students after learning using the Means-Ends Analysis (MEA) learning model. From the results of this study, it can be seen that the Means-Ends Analysis (MEA) learning model is effective in developing students' problem solving and productive disposition abilities with the effectiveness criteria: (1) The results of students' problem-solving abilities are categorized to be effective both descriptively and inferentially in terms of posttest scores, normalized gain, and classical completeness. (2) The productive disposition of students is categorized effectively both descriptively and inferentially in terms of the score of productive disposition and increase in productive disposition. Abstrak:Rendahnya kemampuan problem solving dan productive disposition peserta didik disebabkan oleh ketidaktepatan model pembelajaran yang digunakan oleh guru dalam pembelajaran matematika. Penelitian ini bertujuan mengetahui keefektifan model pembelajaran Means-Ends Analysis (MEA) dalam menumbuhkembangkan kemampuan problem solving dan productive disposition peserta didik. Jenis penelitian yang digunakan adalah pre-experimental dengan desain One-Group Pretest-Posttest Design. Data yang dianalisis adalah hasil problem solving dan productive disposition peserta didik setelah pembelajaran matematika dengan menggunakan Means-Ends Analysis (MEA). Dari hasil penelitian ini diperoleh bahwa Means-Ends Analysis (MEA) efektif dalam menumbuhkembangkan kemampuan problem solving dan productive disposition peserta didik dengan kriteria keefektifan: (1) Hasil kemampuan problem solving peserta didik dikategorikan efektif baik secara deskriptif maupun secara inferensial yang ditinjau dari: skor posttest, gain ternormalisasi, dan ketuntasan klasikal. (2) Productive disposition peserta didik dikategorikan efektif baik secara deskriptif maupun secara inferensial yang ditinjau dari: skor productive disposition dan peningkatan productive disposition.
Content Analysis tentang Pembelajaran Kolaboratif Berbasis Open Ended untuk Meningkatkan Kepercayaan Diri Siswa Dalam Belajar Matematika
Authors: Nurhayati Nurhayati
Published: October 2020

Abstract:This article presents the results of content analysis of 19 books and 18 journals grouped according to the topic of collaborative learning, open-ended approach, and students’ self confidence in learning mathematics. From this analysis, it is found that collaborative learning is highly recommended. The tasks given should use open-ended problems and intensively use various approaches. In the world of education, the students should be given the freedom to exchange ideas with other friends, while the teacher just acts as a facilitator, not as an expert. By learning that way, it is expected that the students can demonstrate clearly when they have to work individually and when they have to work collaboratively; this can indirectly increase the students' self confidence.Abstrak:Artikel ini menyajikan hasil analisis content terhadap 19 buku dan 18 jurnal yang dikelompokkan sesuai dengan topik pembelajaran kolaboratif, pendekatan open-ended, dan kepercayaan diri siswa dalam belajar matematika. Dari analisis tersebut diperoleh bahwa pembelajaran kolaboratif sangat disarankan untuk digunakan. Tugas-tugas yang diberikan seharusnya menggunakan permasalahan open-ended dan secara intensif menggunakan berbagai macam pendekatan. Dalam dunia pendidikan sebaiknya siswa diberikan kebebasan untuk bertukar pikiran dengan teman lainnya sedangkan guru cukup berperan sebagai fasilitator bukan sebagai seorang ahli. Dengan pembelajaran yang seperti ini, harapannya mereka bisa mendemonstrasikan dengan jelas kapan mereka bekerja sendiri dan kapan mereka bekerja bersama-sama, hal ini secara tidak langsung dapat meningkatkan kepercayaan diri siswa.
Investment in Human Capital and Labor Productivity in Southern Key Economic Zone An Application of Propensity Score Matching Method
Authors: NGUYỄN KHÁNH DUY , NGUYỄN THỊ HOÀNG OANH , NGUYỄN DUY TÂM , PHẠM TIẾN THÀNH , TRƯƠNG THANH VŨ
Published: October 2020

This paper investigates the determinants of human capital investment in the form of formal training (off-the-job training) and estimates effects of this investment on productivity using Propensity Score Matching (PSM) method. We use data from a survey of small and medium enterprises (SMEs) in Vietnam (completed in 2010) with detailed information about training and several firm characteristics. Our estimates reveal that investment in human capital currently does not have the considerable contribution to the improvement in productivity of SMEs. This result does not support the universalistic perspective in strategic human resource management (SHRM) theoretical model
Impacts of the Business Size on the Profit of Enterprises in the Mekong Delta
Authors: LÊ KHƯƠNG NINH , NGUYỄN LÊ HOA TUYẾT
Published: October 2020

The paper aims to investigate impacts of the business size on the profit through primary data collated from 495 enterprises randomly chosen in the Mekong Delta. As the results indicate, the profit depends on the business size in the form of a cubic function. Additionally, the ratio of current assets to sales, the sales growth rate, the human resource quality, and the manager?s attitude towards risks have positive relations with the profit. By contrast, the competitiveness responds negatively to the profit. Especially, impacts of unofficial costs on the profit are the ?-shape of the square function. Based on estimates, some recommendations to enhance the profit are also provided.
The Trans-Pacific Partnership Agreement: Opportunities and Challenges to Vietnam’s Apparel Exported to the US Market
Authors: NGÔ THỊ HẢI XUÂN
Published: October 2020

The Trans-Pacific Partnership Agreement (TPP) is negotiated among eleven countries from three continents: Brunei Darussalam, Chile, New Zealand, Singapore, Australia, Canada, Malaysia, Mexico, Peru, the USA and Vietnam. It is considered as a 21st century trade agreement because it deals with various fields, from trade in goods and services to intellectual property, labor and environmental issues. TPP therefore offers both opportunities and challenges to Vietnamese economy, especially opportunity to export goods to member markets, including the US one - a potential market for various goods from Vietnam, such as apparel, footwear and aquatic products, etc. This paper aims at presenting an overview on TPP, and estimating opportunities and challenges to Vietnamese apparel industry when exporting its output to the USA in the future as influenced by the TPP.
Comparing the Business Performance of the State-Owned Enterprises and Others
Authors: NGUYỄN THỊ CÀNH
Published: October 2020

The paper examines the socioeconomic and financial efficiency to evaluate the business performance of state-owned enterprises in comparison with that of others (private enterprises and FDI ones). Accordingly, it aims to determine the role and position of economic sectors and business types, especially state-owned ones, based on their contribution to the GDP growth rate and the business performance. Analyses shed light on strengths and weaknesses of each sector and enable to extend some solutions to the restructuring of state-owned enterprises and improvement in their business performance. The research data is secondary, which is collated from Vietnam?s Statistical Yearbooks from 2000 to 2012 and the annual corporate surveys of GSO in the period 2006 ? 2009. The descriptive and comparative statistical methods are employed to describe and compare figures of socioeconomic and financial efficiency.
Impacts of Coal Railroad Transportation Project on GDP Promotion and Unemployment Reduction in Bengkulu Province, Indonesia
Authors: KURNIAWAN PAULUS , SRI BUDHI KEMBAR , UTAMA SUYANA , YASA MAHAENDRA
Published: October 2020

massive, advanced and integrated railroad system for coal transportation (referred to hereafter as ?Project?) from Muara Enim, Sumatra Selatan Province to the new coal port at Pulau Baai, Bengkulu Province, Indonesia is developed by a private investor together with the local government (PEMDA) of Bengkulu Province to make the best use of abundant coal resources in the region. This paper analyzes the impact of this Project on the Bengkulu economy, which is currently considered low. The Gross Domestic Product (GDP) is adopted as the economic indicator. The study combines the theories of export base and economic base, economic and regional developments, cost-benefit analysis and economic impact study with the empirical data. The results show the Project?s financial feasibility with Cost-Benefit Ratio of 1.61, Internal Rate of Return of 21.1% and Payback Period of 5 years, which will provide a significant contribution to the Bengkulu GDP growth and a decrease of 821,600 people among the unemployed.
Combining Option Approach with Logistic Regression Analysis to Measure Default Risk of Listed Companies on Vietnamese Stock Market
Authors: PHAN ĐÌNH ANH , NGUYỄN HÒA NHÂN
Published: October 2020

This paper explores correlation between growth of stock market and economic growth in Vietnam by examining causal relationship between VN-Index and the GDP. The results show that there is no evidence of a causal relation between VN-Index and economic growth. This finding allows several implications of restructuring of the Vietnamese economy.
Factors Affecting Employees’ Attitudes and Tendency to Resign Caused by Organizational Change
Authors: HUỲNH THỊ THU THANH , CAO HÀO THI
Published: October 2020

Organizational change is inevitable for survival and growth in the current dynamic business environment. Under the pressure of external and internal environments such as economic policies, behaviors of competitors, visions of companies, mergers, acquisitions, etc. every organization is forced to change. However, organizational change does not always bring expected results for all organizations. The most common reason for the failure of organizational change is the employees’ resistance to change. This study aims at evaluating factors that affect acceptance, resistance and resignation among employees when organizational change takes place. The results showed that employees’ commitment to and trust in organization have positive effects whereas perception of status loss has negative effects on acceptance of organizational change. On the other hand, commitment and trust of employees with organization have negative effects whereas workplace stress has positive impacts on the resistance to organizational change. Additionally, employees with resistance to changes tend to quit their jobs. Goodness of fit of the general model based on path analysis is 64.6%.
Resilience in the Face of the Nature’s Furor: Natural Disasters and Vietnamese Households
Authors: Tam Bang Vu , ERIC IKSOON IM
Published: October 2020

This paper investigates the effects of natural disasters in Vietnam over the period 2002-2010. Using disaster data from the desinventa.net and data on other variables for 64 sub-regions from the General Statistic Office of Vietnam, we examine the impacts of natural disasters on household per capita income, residential investment, and domestic trade. The damage measures comprise the number of people killed, number of people injured, number of houses destroyed, and number of houses damaged. The results reveal that the aggregate effects of the disaster damages on household per capita income are insignificant and on residential investment are positive, implying the resilience of the Vietnamese people against natural disasters. We then compare and contrast the costs of disasters among different regions in Vietnam.
Price Transmission in the Value Chain of Hard Clam in Vietnam
Authors: NGUYỄN MINH ĐỨC
Published: October 2020

Using data collected from 2007-2010, this study identifies price linkages and then forecasts vertical price transmission elasticities between markets (farm, wholesale, retail and export) in the value chain of hard clam (Meratrix lyrata) in Vietnam. After doing necessary tests to make sure that all price data are stationary, Seemingly Unrelated Regression (SUR) and Error Correction Model (ECM) are employed to examine short-time and long-time effects of hard clam price in one market on the other market in its value chain. The seemingly unrelated regression results show that hard clam prices seem not depend on seasons. Farm price of hard clam is transmitted completely to wholesale price while the price in retail market causes negative effect on farm price in the short run. Wholesale price of hard clam is transmitted to both prices in farm and retail markets. The export price of hard clam is estimated not to be affected in the short run by prices in other markets except retail price in domestic markets. Error correction models confirm the independence of hard clam price on annual seasons. The transmission elasticities of prices between the markets are also identified based on model estimation.
Analysis of Factors Affecting Performance of Vietnamese Commercial Banks: Testing SCP and ES Hypotheses
Authors: PHAN THU HIỀN , PHAN THỊ MỸ HẠNH
Published: October 2020

The research aims at analyzing factors impacting on performance of Vietnamese commercial banks in the years 2005-2012. The authors test SCP (structure-conduct-performance) and ES (efficient structure) paradigms for factors affecting return ratios of banks. The results show that it is market concentration instead of market share that has positive effects on bank performance as shown in their return on average assets (ROAA) and return on average equity assets (ROAE). Additionally, bank size, ownership, ratio of deposit to total asset and inflation rate also produce effects on performance of commercial banks in Vietnam. These findings allow authors to offer some measures to support a sustainable development for Vietnamese commercial banks.
Impact of FDI on Provincial Economic Growth in Vietnam
Authors: SỬ ĐÌNH THÀNH , Nguyễn Minh Tiến
Published: October 2020

The impact of foreign direct imvestment (FDI) on economic growth is still a highly controversial issue as remarked by many researchers (Aitken et al.; 1997; Carkovic & Levine, 2002; Bende-Nabende et al., 2003; Durham, 2004; and Hsiao, 2006). Using a panel dataset of 43 provinces in Vietnam during 1997 – 2012 and the Granger causality test by Arellano-Bond GMM and PMG estimation, this paper shows that: (i) FDI does Granger-cause private investment, human resources, taxation, infrastructure, trade openness and local technology; (ii) FDI has a positive impacts on provincial economic growth in the long term; and (iii) FDI flows vary over provinces due to differences in geographical conditions and level of development.
Economic Growth Model of Vietnam: Simultaneous Equation System
Authors: Nguyễn Hoàng Bảo
Published: October 2020

The paper discusses how internal and external factors affect economic growth in the economic literature and explores the economic mechanisms through which the macroeconomic variables might impact economic growth directly and indirectly. The simultaneous equation system is employed in order to introduce the key macroeconomic behavior functions using the Vietnamese data for the period 1986 – 2013. The findings are: (1) the major contribution to economic growth is the quantity of investment instead of the quality of investment; (2) the optimal macroeconomic stability has positively affected economic growth; (3) exports have positively impacted on economic growth; (4) the public investment crowds in the private investment generally; and (5) the income, capacity utilization, and the optimal inflation have positively impacted consumption. The paper also shows that the GDP growth rate does not capture well the economic performance of the country because it does not take into account the net factor payment from abroad, natural resource depletion, and the inefficient intra-industry trade.
Social Security Policies in Connection with Sustainable Economic Growth in the Period 2011-2020
Authors: Mai Ngọc Cường
Published: October 2020

The paper shows that the Vietnam’s system of social security policies during its reforms increasingly supports risk prevention, mitigation and management, positively contributing to the implementation of targets for human development. This system, however, reveals many shortcomings, such as its limited coverage and low impact on beneficiaries. Since the system, in which all citizens are guaranteed to be engaged, should assure people’s fundamental needs and increase its scope of impact, greater accountability of involved parties is required. Additionally, on the basis of synchronous development of all components of the social safety net, it is vital that the policy model, organizations in operation and/or services and finance resources providers be diversified and that the development of social security policies be attached to economic and social development.
Government Size and Economic Growth in Vietnam: A Panel Analysis
Authors: SỬ ĐÌNH THÀNH
Published: October 2020

The effect of government relative size on economic growth is a contentious issue. This paper is undertaken to test the relationship between government size and economic growth in Vietnam. The study is a panel data investigation, involving 60 provinces over the period 1997–2012. Various measures of government size are defined: provincial government expenditure as a share of gross provincial product (GPP), provincial government revenue as a share of GPP, real provincial government expenditure per capita, and real provincial government revenue per capita. Empirical estimates are employed by conducting Difference Generalized Method of Moments method proposed by Arellano and Bond (1991) and Pooled Mean-Group method by Pesaran, et al. (1999). These tests reveal: (i) provincial government expenditure (revenue) as a share of GPP has a significantly negative effect on economic growth; and (ii) the real government expenditure (revenue) per capita has a significantly positive effect on economic growth. It is also found that the long-run and short-run coefficients of government expenditure size are significant and negative, that the correction mechanism from the short run disequilibrium to the long run equilibrium is not convergent, and that government employment has a negative correlation with economic growth.
An Application of KMV Model to Forecast the Credit Risk of Corporate Customers andBank’s Expected Losses
Authors: Nguyen Thi Canh , Pham Chi Khoa
Published: October 2020

The research aims to apply KMV-Merton model to calculate and forecast default probability (DP) among corporate customers of Vietcombank. Analyzing data from financial statements of 6,398 corporate customers in the years 2008–2012/2013, the research shows that the DP of the whole customer portfolio is 2.6%, equaling a loss of VND6,319 billion, or 3.8% of outstanding loans to the portfolio. The results also show that small-sized companies have smaller DP as compared to larger ones. Regarding industries, the lowest DP is found in road and waterway transport business, and the highest is in electricity (including production, transmission and distribution), production of other kinds of power, and seafood processing business. Industries with high DP and outstanding loans may cause the greatest damage to banks. The research concludes that large-sized companies and seafood processing enterprises cause the greatest losses to banks.
Formal Credit; Policy Impact; Household Income; Difference-Indifferences Method; Panel Data Regression.
Authors: Dinh Phi Ho , Dong Duc
Published: October 2020

Many studies have been conducted to estimate effects of rural credit programs on household income in both Vietnam and foreign coutries. Some provided positive evidence of such programs’ efficiency while others suggest that not all credit programs improved household income. Responding to the question of whether formal credit affects household income will contribute to directions determined to adjust allocation of resources for agriculture and rural development. In addition to the use of Difference-in-Differences (DD) method in connection with pooled OLS regression, this paper employs panel data from Vietnam Access to Resources Household Survey (VARHS) in the years 2006–2012, and finds that the formal credit does have effects on the rural household income. Additionally, the paper offers three groups of policies for promoting the role and improving efficiency of the formal credit programs on the household income in rural Vietnam.
Does Gender Diversity Improve Financial Firm's Performance? New Evidence using Two-Stage Least Squares Estimation and Instrument Variables
Authors: Vo Hong Duc , Doan Bao Huy
Published: October 2020

In this paper we examine whether a positive relationship exists between board’s gender diversity and financial firm’s performance. The study is conducted on a sample of US firms which provides us with as many as possible observations for various econometric techniques. Findings from our two-stage least squares estimation using the fraction of male directors on at least two boards as an instrumental variable show that higher proportions of female directors adversely affect firm value. We further test whether board diversity improves the performance of firms with otherwise weak governance. However, the results are not statistically significant. We also extend our model to the committee level, and our results show that increased representation of women in Audit and Nomination committees are likely to deteriorate the performance of the company as measured using Tobin’s q. The implication for Vietnam is that while a representation of female directors in a board of directors may improve firm’s performance as findings from Vo and Phan (2013) indicate, increasing a number of female directors may not be the case to improve financial firm’s performance.
Reality of Vietnam’s Commercial Bank Performance and Soundness
Authors: Nguyen Thi Canh , Nguyen Thi Diem Hien
Published: October 2020

This paper employs CAMELS rating system to evaluate the performance and soundness of Vietnam’s commercial banks. Based on the analysis of data from financial statements of the banks in the years 2005/2008–2013, the research results show that the total assets and equity capital of Vietnam’s commercial banks have increased, but their efficiency is not yet high and tends to gradually decrease. The expense-to-revenue ratio was higher than 80% while the return on assets (ROA) ratio remained around 1% and had a tendency to sharply fall to 0.77% and 0.56% in 2012 and 2013 respectively. The return on equity (ROE) ratio, in addition, fell steadily in 2012 (7.42%) and 2013 (5.84%). The findings also indicate that profitability of state-owned commercial banks is higher than that of private joint-stock ones. Additionally, risk degree was high because of a high bad debt (around 4%) and low liquidity (around 90% of loan-to-deposit ratio). In addition to its analysis, the research offers sevaral recommendations that aim at improving banking efficiency and mitigating risk as for Vietnam’s commercial banks.
Factors Influencing Capital Structure of Vietnam's Real Estate Enterprises: A Move from Static to Dynamic Models
Authors: Pham Tien Minh , Nguyen Tien Dung
Published: October 2020

In this study, which investigates the determinants of capital structure of Vietnam’s listed real estate companies, we conduct a comparative analysis of static and dynamic models, finding out several factors affecting the capital structure. By applying panel data for 47 listed companies in the real estate domain from 2008 to 2013, we find that static panel models and dynamic estimators provide significantly different results. To finally identify the capital structure determinants, we then employ the system-GMM estimation. The empirical results indicate that the pecking order theory dominates the static trade-off theory as for the Vietnam’s listed real estate companies, which are also found to partially adjust their capital structure toward the target capital structure at a low speed (α = 0.452), implying that these have to face quite large adjustment costs.
Global Warming, Cyclone Damages, and the Issue of Sustainable Tourism in Southeast Asia
Authors: Tam Bang Vu , ERIC IKSOON IM
Published: October 2020

This paper studies the feedback effect between damages caused by cyclones and unsustainable tourism in Southeast Asia. The data are constructed based on the Annual Tropical Cyclone Reports from the United States National Climatic Data Center website for the period of 1995–2013. Establishing a cyclone damage index by combining the maximum speed when each cyclone goes through a region and characteristics of each region affected by cyclones in Southeast Asia, we first attempt to quantify the two-way causality between these cyclones and the proportion of tourist arrivals per capita. We then analyze differences among the affected countries compared to the aggregate effects. Based on the results, policy suggestions for sustainable tourism are provided in order to mitigate the cyclone damages.
Impact of Financial Development on Income Inequality in Vietnam
Authors: Le Quoc Hoi , Chu Minh Hoi
Published: October 2020

Utilizing the approach of constructing indicators treated as representatives for degree of financial development at provincial level of Vietnam over the 2002–2012 period along with Generalized Method of Moments (GMM), this study inspects the nexus between financial development and income inequality. To a certain extent the empirical findings present evidence to show that financial market expansion in Vietnam widens income inequality, through which some policy recommendations are provided with regard to reducing the inequality of income distribution across the society.
Factors Affecting the Use of Costing Systems toward Managerial Performancein Vietnamese Public Hospitals
Authors: Nguyen Phong Nguyen , Nguyen Dung Hai , Tran Anh Hoa
Published: October 2020

This study investigates contextual and behavioral factors affecting the use of costing systems toward managerial performance among Vietnam’s public hospitals. The PLS-SEM results based on survey data from 262 mid-level managers from various departments indicate that top management support, decentralization of decision making, perceived technical validity, and perceived environmental uncertainty are important drivers of the use of costing systems, which in turn enhances task performance. The findings suggest that Vietnamese public hospitals should not underestimate the contextual and behavioral factors involved in facilitating the functioning of costing systems toward better performance outcomes. This study adds to limited research on behavioral accounting in Vietnamese public hospitals.
Knowledge Sharing between Marketing and Accounting from a Coopetitive Perspective: Empirical Evidence from Vietnam
Authors: Nguyen Phong Nguyen , Doan Ngoc Que , Nguyen Dung Hai
Published: October 2020

This study examines cross-functional knowledge sharing at the interface between marketing and accounting departments within business organizations. It develops a coopetition model to examine the effects of contingent variables including cross-functional competition and organizational innovativeness on the coordination–sharing–performance (C–S–P) link. The results obtained from a survey of 178 large firms in Vietnam demonstrate that except formalization all coordination mechanisms including lateral relations, informal networking, and shared visions have positive influences on the knowledge sharing at the interface between marketing and accounting departments. Moreover, competition between these moderates the effects of both lateral relations and informal networking on the extent of knowledge sharing between the marketing and accounting departments (MAKS). Finally, this study finds that organizational innovativeness partially mediates the MAKS–performance link, emphasizing the role of innovation in transforming knowledge to performance.
The relationships between big-five personality traits and the choice of luxury product attributes by Vietnamese consumers
Authors: Ho Huy Tuu
Published: October 2020

This study tests and discusses the relationships between personality traits in the Big-Five Model and consumers’ choice of luxury attributes (CLA) associated with branded products in Vietnam. A total of 500 adult consumers are interviewed by a self-administrated questionnaire in three cities in Vietnam. Because 33 cases are eliminated for missing values, the data of 467 consumers are employed in this study. Structural equation modeling is also adopted to evaluate the reliability and validity of the constructs and test hypotheses. The results indicate that while extraversion, openness, and agreeableness have significantly positive effects, conscientiousness and neuroticism have significantly negative impacts on the choice of luxury attributes. Thus, Vietnamese consumers with different personality traits have different preferences toward luxury products. The extra value of the paper is to provide deeper insights into how and why each personality trait can link with the choice of luxury attributes. This paper, in addition, particularly stresses that consumers who register in extraversion, openness, and agreeableness are the target audience for luxury branded products in Vietnam.
Which are determinants of firm innovation in Vietnam? A micro analysis
Authors: Le Thi Ngoc Bich , Vu Trong Phong , Le Thi Ngoc Diep
Published: October 2020

This study sets out to investigate the factors influencing Vietnam firms’ innovation in various sectors by using World Bank (2015) enterprise survey of 996 firms across the country. We employ ordinary least squares (OLS), probit model, and marginal effect to estimate the impact of firm characteristics, industry characteristics, and business climate on different facets of innovation, including technology and non- technology. Quantitatively, we find that direct exporters, firm size, state ownership, email using, and competition increase the probability of technology innovation. Meanwhile, foreign ownership impacts negatively on innovation in all aspects, technology and non-technology innovation. Firm age and bribery are not influential factors to innovation in all cases. From the findings of analysis, a few policy implications regarding the studied factors are drawn for better environment for firm innovation.
The impact of non-performing loans on bank profitability and lending behavior:Evidence from Vietnam
Authors: Nguyen Thi Hong Vinh
Published: October 2020

The aim of this study is to investigate the impact of non-performing loans on profitability and lending behavior, using an empirical framework that examines whether an increase of NPLs can lead banks to reduce their profitability and lending activity. To account for profit and lending persistence, the paper applies the Generalized Method of Moments technique for dynamic panels using bank-level data for 34 Vietnamese commercial banks over the period from 2005 to 2015. Throughout the whole sample, we find some evidence that the non-performing loan has a statistically significant negative effect on Vietnamese commercial banks profitability and lending behavior. The estimation results also show that other bank specific and macroeconomic determinants affect bank profitability and lending behavior significantly in the anticipated way. These findings will be helpful for bank managers and policy makers to improve the performance and lending behavior of Vietnamese commercial banks.
Innovation of the firm: How to create performance from capability
Authors: Trinh Thuy Anh , Nguyen Ngoc Thong
Published: October 2020

Based on the competitive advantage theory and resource-based theory of the firm, this paper examines the impact of innovation capacity on innovation performance of the tourism industry. Innovation capability is defined as the firm's ability to reconfigure and develop their resources and organizational capabilities to innovate. Innovation capability is measured by four components: sensing capability (SC), combination capability (CC), networking capability (NC), and learning capability (LC). Innovation performance is achievement or success of innovation made by a firm in accordance with the target, described by the three components: internal performance (IP), commercial performance (CP), and social performance (SP). The results of Multiple Regression Analysis (MRA) applied to a sample of 242 directors and CEOs of travel agents in a list of Ho Chi Minh City Tourism Association (HTA) and Ho Chi Minh City Department of Tourism show that three (SC, CC, NC) among four components (SC, CC, NC, LC) of innovation capabilities have effects on innovation performance. However, the application of fuzzy set theory in the fuzzy-set qualitative comparative analysis indicates that learning capability does not have any impact on firms’ innovation performance. A combination of learning capability and networking capability, nevertheless, creates sufficient conditions for innovation performance.
Water governance for sustainable development: International practices and implications for the Mekong Delta region
Authors: Võ Tất Thắng , Thong Tran , Duy Luong
Published: October 2020

Water governance takes a vital role in sustainable development in the developing world. Population growth, economic development and technological improvement have raised the water demand but water supply is becoming unstable due to natural changes. Water scarcity leads to not only environmental pressures but also social tensions due to the fact that water resources are distributed unevenly across countries, regions, and social groups. In this paper, we firstly review water governance around the world and then investigate the water governance issues in Vietnam, especially in the Mekong Delta. International practices including tools, models and challenges of water governance would be valuable lessons for water policies in Vietnam.
On Constraint Manifolds of Lorentz Sphere
Authors: Aktaş Buşra , Durmaz Olgun , Gündoğan Hal˙t
Published: October 2020

The expression of the structure equation of a mechanism is significant to present the last position of the mechanism. Moreover, in order to attain the constraint manifold of a chain, we need to constitute the structure equation. In this paper, we determine the structure equations and the constraint manifolds of a spherical open-chain in the Lorentz space. The structure equations of spherical open chain with reference to the causal character of the first link are obtained. Later, the constraint manifolds of the mechanism are determined by means of these equations. The geometric constructions corresponding to these manifolds are studied.
Iterative Solution of Weighted Linear Least Squares Problems
Authors: Carp Doina , Popa Constantin , Preclik Tobias , Rüde Ulrich
Published: October 2020

In this report we show that the iterated regularization scheme due to Riley and Golub, sometimes also called the iterated Tikhonov regularization, can be generalized to damped least squares problems where the weights matrix D is not necessarily the identity but a general symmetric and positive definite matrix. We show that the iterative scheme approaches the same point as the unique solutions of the regularized problem, when the regularization parameter goes to 0. Furthermore this point can be characterized as the solution of a weighted minimum Euclidean norm problem. Finally several numerical experiments were performed in the field of rigid multibody dynamics supporting the theoretical claims.
On a free boundary value problem for the anisotropic N-Laplace operator on an N−dimensional ring domain
Authors: Nicolescu A. E. , Vlase S.
Published: October 2020

In this paper we are going to investigate a free boundary value problem for the anisotropic N-Laplace operator on a ring domain

Ω
:
=

Ω

0

\

Ω
¯

1

⊂

𝕉

N

\Omega : = {\Omega _0}\backslash {\bar \Omega _1} \subset {\mathbb{R}^N}

, N ≥ 2. Our aim is to show that if the problem admits a solution in a suitable weak sense, then the underlying domain Ω is a Wulff shaped ring. The proof makes use of a maximum principle for an appropriate P-function, in the sense of L.E. Payne and some geometric arguments involving the anisotropic mean curvature of the free boundary.
Successful Repair of Coarctation of the Aorta and Obstructive Total Anomalous Pulmonary Veins Connection in a One-Day-Old Newborn
Authors: Teplov P.V. , Miller A.Yu. , Titov A.M. , Sakovich V.A.
Published: October 2020

A clinical case of successful repair of a combination of total anomalous pulmonary venous connection (TAPVC) with collector stenosis in one-day-old newborn. Only one case of successful correction of such a pathology is reported previously. The operation was performed with cardiopulmonary bypass and temporary antegrade brain perfusion. The narrowed aortic area was resected, the integrity of the aortic arch was restored using an extended anastomosis, and TAPVC correction was performed using a “sutureless technique”. The postoperative period was uneventful. The newborn was discharged from hospital on the 12th day.
Changes in Coagulation Parameters After Permanent Pacemaker Implantation
Authors: Yoncheva I.D. , Biserov D.E. , Negreva M.N.
Published: October 2020

The connection between venous thrombotic events in patients with implanted pacemakers and changes in coagulation factors has been the basis of numerous scientific studies for years. Results show that the effect on the coagulation system is a long-term and dynamic process, as well as presence of a significant dependence with many concomitant cardiovascular diseases.

Advances in medicine in recent decades and increase in life expectancy of patients with implanted cardiac devices (ICD) increase the risk of a variety of complications. These adverse events may be associated with development of thrombosis, change in the stimulation threshold, need for ablation due to concomitant rhythm pathology and others. Analysis of data from literature shows unequivocally that placement of endocardial electrodes leads to activation of the coagulation system in the body. On the one hand, this is a result of the direct traumatic moment and endothelial damage in the early post-procedure period, and subsequently, the presence of electrodes of the foreign body type in some individuals can provoke a procoagulation state.

More in-depth research is needed in this area to clarify the answers to these questions, namely: in which phase of the coagulation cascade are the changes most significant; is there a way to anticipate these changes and prevent them accordingly; is disturbed homeostasis of coagulation temporary or persistent.

These questions will be answered after sufficient data have been accumulated on these changes and how to modulate them.
A comparative analysis of urban development and the tram line network in Lviv in 1932−2016
Authors: Cegiełko Szczepan , Karsznia Izabela
Published: October 2020

This article presents a comprehensive analysis of changes in urban development (including certain types of public buildings) and changes in the routes of Lviv’s tram lines over the last 80 years, related to the territorial and demographic development of the city. For this purpose, maps comparing these elements of urban infrastructure between 1932 and 2016 were developed. The analysis was carried out based on a plan of Lviv from 1932, contemporary vector data taken from OpenStreetMap, ArcGIS basemaps, Google Street View panoramic images, information contained in interwar Lviv guides, and supplementary information from other sources.