bluuebunny/crossref_metadata_2025 huggingface dataset:
ESTIMATION OF NEW RELATIVE PERMEABILITY CURVES DUE TO COMPACTION CASE STUDY AT BACHAQUERO FIELD – VENEZUELA
Authors: Ta Dung Quoc , Behrenbruch Peter
Published: March 2020

This paper is written to analyse the variation of water production due to compaction in a field in Venezuela. The producing water, after being analysed, was suspected not from aquifer. So where does the water come from? The results shows that pore structures of reservoir changed, and producing water is due to volume changes of immobile water and mobile water as the result of compaction. It means that relative permeability curves have changed when rock deforms.
THE EVALUATING ABILITY OF RAINWATER ABSORPTION OF AQUIFERS IN HO CHI MINH CITY WHEN ARTIFICIAL SUPPLY
Authors: Nguyen Ky Viet , Ngo Chan Duc , Tong Thanh Viet
Published: March 2020

With the three out of main five aquifers were exploiting with large quantity in Ho Chi Minh City, the groundwater table was being lower rapidly, where the salty boundary was moving into mainland. To protect and restore the water resource, it is necessary to artificial supply by difference sources, especially being rainwater. The authors based on the exploiting storage and modflow simulation to calculate rainwater quantity could be contained into the absorbed aquifers by artificial supply.
ACTUAL STATE OF SEVERAL ROCK AND CLAY QUARRIES AFTER MINE CLOSURE AND RECLAMATION IN DI AN, BINH DUONG PROVINCE AND PROPOSED METHODS FOR MANAGEMENT
Authors: Hoang Hanh Thi Hong
Published: March 2020

According to Mining Regulation, quarry reclamation after mining has to be realised in order to use mined area for another purposes. In reality, due to many reasons, among many closed quarries, this mission was only executed for some of them. Moreover, environmental impact assessements have not been applied for all of closed mines as well as reclamed mine yet.. Through initial survey, it is showed that some of them have environmental problems and unsafety. The paper focus on survey and analysed sample results of 3 closed mines (Dong Hoa, Tan Phuoc Khanh, and Binh An) in Di An, Binh Duong province in order to analyse their actual states as well as propose management methods.
COMPOSTING PROCESS WITH PASSIVE (NATURAL) AERATION
Authors: Nguyen Phuong Thanh , Nguyen Phuoc Van , Nguyen Dan Phuoc , Vu Trang Nha
Published: March 2020

Municipal solid waste (MSW) treating technologies used popularly in Vietnam are landfills, whereas medical waste is usually treated by incinerators. Due to the disadvantages such as: large invest-ment and operational cost, high capital in case of small scales, producing secondary waste like exhaust gas from landfills and leachate that needs collecting and treating properly. Therefore, application of biotechnology based on microorganism’s aerobic decomposing process has opened a new potential way in treating MSW. However, the actual experience of composting facilities that apply aerobic decomposing process with active aeration (forced aeration) show that the efficiency is not high, energy cost is large and some problems with leachate. The research has successfully applied the composting technology with passive or natural aeration in order to treat MSW in small scale and the operational cost is pretty low. The research has also determined that the decrease of volume is 81,25%, the decrease of weigh is 75%; the rate of raw compost and original MSW after 28 days is 25% and the rate of compost after 56 days is
IMPACT OF CLIMATE CHANGE ON THE TREND OF CHANGES IN TEMPERATURE, RAINFALL AND WATER LEVEL OF THE SAI GON RIVER IN HO CHI MINH CITY
Authors: Nguyen Mai Thi , Vo Phu Le
Published: March 2020

In a recent World Bank report showed that Viet Nam was one of the five (5) countries that are most affected by sea level rise, a consequence of climate change. Ho Chi Minh City (HCMC), a Vietnam’s biggest city, is accordingly identified as a most area significantly impacted by climate change in the Mekong Delta region. For those countries affected by climate change, future studies on extent and degree of impacts as well as setting out the national strategy and measures adapting to climate change is urgently and a vital of concern. This paper will present surveyed and analyzed results of possible impacts of climate change in Ho Chi Minh City, including: changes of mean temperature over the past 30 years (1979-2008); changes of rainfall (and density) and water level at the Sai Gon River in the period of 1978-2008. In addition, some specific measures for climate change adaptation are also addressed and proposed in the context of Ho Chi Minh City.
University of Technology, VNU-HCM
Authors: Le Khoa Van
Published: March 2020

Plastic bags are associated with convenience and low cost. The over-use and disposal of plastic waste with non specifications are made the regrettable corollary to landscape and environment. Therefore, research on plastic bag use reduction measures in Ho Chi Minh City is necessary, and will contribute to improving public awareness about environmental protection, aiming at a sustainable consumption society in Ho Chi Minh City. This research gathered and analyzed documents regarding plastic bag’s effects on the environment; documents and figures related to plastic bag use management in the world; and combined with surveying, collecting related data about reducing plastic bag use in Ho Chi Minh City. Many measures from economic tools to enforcement, even through media campaigns are proposed to guaranty the success of the program; such as a ban of free plastic bags, a tax on using plastic bags, improving public awareness, setting up a system for plastic bag collection. In addition to, the potential conditions and solutions were studied for replacing plastic bags with environmentally friendly bags.
APPLICATION OF BAC-BSF BIOLO GICALTECHNOLOGY IN REUSE OF DOMESTIC WASTEWATER IN HO CHI MINH CITY
Authors: Phan Nhan Thanh , Nguyen Dan Phuoc , Nguyen Hien Thi My
Published: March 2020

This research aims to assess treatment efficiency of model combined biological activated sludge (BAC) and biological sand filter (BSF) to domestic wastewater after secondary treatment so that reclaimed water quality can be achieved at low or medium level in Ho Chi Minh City. Combined model included BAC filer followed by BSF. The influent is taken from stabilization pond (Binh Hung Hoa wastewater treatment plant: dry season capacity: 28.000 m3/day; rain season capacity: 46.000 m3/day). Characteristic of influent is: color: 227 Pt-Co; COD: 42 mg/l, N-NH3: 11 mg/l, Fecal Coliform: 1,1x103 MPN/100ml. Results showed that it can choose loading of 2 – 3 m/h to BAC-BSF model, efficiency is rather good and stable; capacity is rather high and nitrification and denitrification is occurred well. When BACBSF model is applied to reclaim secondary domestic wastewater, quality of effluent may adapt to some reuse applications with medium level in some parameters such as BOD5, TOC and SS. However, total coliform, color and turbidity is still high. Turbidity and color is caused by mixing of raw wastewater of itself and some textile factories. Therefore, disinfection and supplemental treatment which uses coagulant before entering BSF is necessary. Using ozone followed by BAC may enhance removal efficiency of TOC, color and turbidity..
IMPACTS OF OWNER MANAGER ON KNOWLEDGE MANAGEMENT AND ORGANIZATIONAL PERFORMANCE OF SMALL MEDIUM SIZED ENTERPRISES – A RESEARCH MODEL
Authors: Bui Hung Nguyen , Truong Chuong Minh
Published: March 2020

Small and medium sized enterprises (SMEs) cover a high percentage of total operating enterprise number and play an important role in economic development and job creation. They have very limited resources. Knowledge is the only resource that they can exploit to create competitive advantage and organizational performance. The managerial system of SMEs is established and controlled by the owner manager reflexing their cognitition and values. Hence, knowledge management in SMEs is also dependent upon their cognition and values created from their demographic variables such as age, education, profession, managerial experience as well as personality characteristics; namely, need for achievement, locus of control, flexibility to name a few. These owner manager’s characteristics exert influence on the knowledge management and organizational performance. In this study, a model is introduced to explain the relationship between owner manager’s characteristics, knowledge management and organizational performance with market orientation as a mediator for the relationship between knowledge management orientation and organizational performance.
FORECASTING INFORMATION TECHNOLOGY HUMAN RESOURCE IN HOCHIMINH CITY FROM 2011 TO 2020
Authors: Cao Thi Hao , Nguyen Phuong Ngoc Binh , Nguyen Hung Thanh , Truong Chuong Minh , Ha Hiep Van
Published: March 2020

Information technology (IT) is a fast-growing field, particularly, in Ho Chi Minh City. The City Authorities have made much effort to improve IT infrastructure and to make a master plan for IT human resource development. The development of IT human resource depends on the demand of IT market and on the supply of IT human resource. In order to have a highly reliable plan for IT human resource development, a forecasting model involving factors of IT human resource demand and supply is in big need. This research aims to establish an IT human resource forecasting model and to apply this model to the forecasting of IT human resource in Ho Chi Minh City from 2011 to 2020.
THE TRENDS OF HIGH SCHOOL GRADUATES IN CHOOSING THE MAJORS OF THE UNIVERSITIES IN HO CHI MINH CITY
Authors: Nguyen Loan Thuy Quynh , Vu Toan Mong
Published: March 2020

The study analyzes the trends and forecasts the number of high-school graduates enrolling in university entrance examination. The study samples are seven majors of 11 universities in Ho Chi Minh City. The analysis and test processes are based on the descriptive statistics by graphs, Mann-Kendall trend test, the estimate model and trend function test by the method of Ordinary Least Squares Estimation (OLS). The result indicates high-school graduates have tendency to enroll in two ologies with descending trend such as Agriculture–Forestry–Fish-Breeding and Teaching–Education Management. There is no conclusion that the remaining majors have ascending trends of registration.
RELATIONSHIPS OF SERVICE QUALITY, SERVICE VALUE AND CUSTOMER LOYALTY - A STUDY OF DOMESTIC AIRLINE SERVICE
Authors: Tran Thao Thi Phuong , Pham Thuy Ngoc
Published: March 2020

For several decades, improving service quality has been considered the best way to enhance customer satisfaction that leads to increase customer loyalty. However, customer satisfaction that is viewed as the most important factor to determine customer loyalty, does not always lead to success. Moving marketing from customer satisfaction orientation to customer value orientation has recently been being a central issue in service marketing. Given these situations, this study aims to explore the relationships between service quality, service value and customer loyalty. Its purpose is to test whether service value should be an alternative to determine customer loyalty beside customer satisfaction. Results of SEM analysis based on a sample of 308 passengers using airlines service in Ho Chi Minh City show that there are two factors of service quality with significantly positive impacts on customer loyalty through such an intermediary as service value.
FACTORS THAT AFFECT THE LINKAGE BETWEEN ENTERPRISES AND UNIVERSITIES: A CASE STUDY IN HO CHI MINH CITY
Authors: Nguyen Hang Thi Thu
Published: March 2020

This research aims to identify the factors that support and hold back the linkage between enterprises and universities. The subject of investigation and survey of the theoretical model is based on a survey of 269 enterprises in Ho Chi Minh City, Viet Nam. The research identified four factor groups affecting the relationship between enterprises and universities. Among them, two supportive factor groups are context and organization factors; and two inhibitive factor groups are difference in the characteristics of activities and in the perception of enterprises about universities. The research proposed a more complex measuring scale of activity differences affecting the cooperation between enterprises and universities. The aim of the research results is to increase linkage executions between enterprises and universities nowadays.
THE EFFECT OF SERVICE QUALITY AND SWITCHING BARRIERS ON CUSTOMER LOYALTY – A STUDY OF HOSPITALITY SERVICES
Authors: Nguyen Han Ho Ngoc , Pham Thanh Huynh Mai , Pham Thuy Ngoc
Published: March 2020

Customer loyalty is the goal towards which many businesses, including tourist hotels place importance on. Loyalty does not only mean repurchasing, but also involves positive talk about the service to others. This paper models customer satisfaction as a mediating variable of service quality and customer loyalty. It investigates the effect of service quality on customer satisfaction and then the effect of customer sarisfaction on customer loyalty. The impact of switching barriers on customer loyalty is also investigated. The results show that there are two components of service quality affecting customer satisfaction, namely Core service (β = 0.406) and Physical environment (β = 0.254). The research also reveals that Customer satisfation (β = 0.688) and Switching barriers (β = 0.110) both have impacts on customer loyalty, in which customer satisfation plays the key role.
THE QUALITY OF PUBLIC ADMINISTRATIVE SERVICE AND CITIZEN SATISFACTION – A STUDY IN DALAT CITY
Authors: Cao Hoang Duy , Le Hau Nguyen
Published: March 2020

This study developes and tests a model of quality in the field of public administration services. Survey data includes 314 individuals and organizations who have used five types of public service in Dalat city. SEM analysis indicates that the quality of public administrative services include four components: staff quality, facilities, accessibility and service processes. In particular, staff quality (professional skills and service attitude) has the strongest effect on people satisfaction. Implications for managers are drawn from the results of this study.
THE ANTECEDENTS OF KNOWLEDGE SHARING INTENTION – ADAPTED TPB PERSPECTIVE
Authors: Tran Phuong Thi Lam , Pham Thuy Ngoc
Published: March 2020

Professional knowledge of doctors has been developed and accumulated during their working time. They have learned from each other and through this learning process their individual knowledge and expertise have been developed. The question is why doctors intend to sacrify their time and efforts to provide valuable knowledge to others. This study applies the Theory of Planned Behavior (TPB) to answering this question. Through directly interviewing 210 doctors working in Ho Chi Minh City, the results showed that the most affected factor of knowledge sharing intention is Attitude toward knowledge sharing (b =0446), Behavioral control toward knowledge sharing (b =0294), Subjective norm of Leadership (b =0126), and of Colleagues (b =0118), with adjusted R2 is of 50.8%. In addition, the factor of Attitude toward knowledge sharing was affected by all three factors investigated in this study.
PROPOSING THE E-BANKING ADOPTION MODEL IN VIETNAM
Authors: Nguyen Thanh Duy , Cao Thi Hao
Published: March 2020

E-Banking is an inevitable trend of banking industry in the future, it brings about benefits not only for the banks but also for customers. The studies showed that, different patterns of EBanking is essential to match specific countries and the popularity of E-Banking products to customers. This study proposes a new model that is the adoption and usage of E-Banking in Vietnam (E-BAM, EBanking Adoption Model). Research results showed that all hypothesis of E-BAM would be accepted. EBAM explained the data reasonably well, with 57% of the total variance in the adoption and usage of EBanking.
A REVIEW OF THE DEVELOPMENT IN DEFINING CORPORATE SOCIAL RESPONSIBILITY
Authors: Le Xuan Thi Thanh , Teal Gregory
Published: March 2020

Corporate Social Responsibility (hereafter CSR) has recently become the debated concept in both academic and practical controversial as well. The reason used to explain is that there is the lack of clear definition of CSR (Wan-Jan 2006) which could be applied in CSR research. This paper is to review the development in defining the concept “Corporate Social Responsibility” from the decade of 1950 to now. The method to review is to examine definitions as well as studies on defining CSR in order to identify the key themes concerning what CSR is in each decade. The review shows some salience points. First, CSR has a very long development history, but it has been officially documented from 1950. Second, researchers tried to define CSR and involved issues by explaining the scope business should be responsible. Last, among reviewed definitions, Carroll’s one is more comprehensive than others and widely-used in research.
MANAGERIAL OWNERSHIP AND THE PERFORMANCE OF FIRMS: EVIDENCE FROM VIETNAMESE FIRM LISTED ON HOSE
Authors: Tran Tri Minh , Duong Hung Nhu
Published: March 2020

Based on the data collected from 126 companies listed on HCM city Stock Exchange (HOSE) during the period 2006 - 2009, this empirical study investigates the relationship between managerial ownership and corporate performance. It is found that there is a strong non-linear relationship between the corporate performance and the managerial ownership. The corporate performance varies directly with the managerial ownership when the managerial ownership ratio is less than 59.1%. However, when the managerial ownership ratio is over 59.1%, the performance varies inversely with the managerial ownership. The nonlinear relationship is a result of interactions between the alignment of interests and the managerial entrenchment: when the managerial ownership is below a certain value, managers have more incentive to work if they have more stakes in the firm. However, when the managerial ownership is high enough, they use the increased power to advance their own interests rather than the interests of the shareholders (managerial entrenchment).
THE STUDY ON CHEMICAL CONSTITUENTS FROM THE SEED OF CAESALPINIA BONDUCELLA FLEM. (CAESALPINIACEAE)
Authors: Nguyen Nhan Trung , Vu Dung Thi Thuy , Nguyen Mai Thi Thanh
Published: March 2020

From the seed of Caesalpinia bonducella Flem. (Caesalpiniaceae), four compounds were isolated: caesalpinin K (1), caesalpinin E (2), caesalpinin J (3) and caesalpinin MP (4). Their structures were determined by spectroscopic methods and compared with published data.
FOUR LIGNANS FROM ROOT OF PSEUDERANTHEMUM CARRUTHERSII (SEEM.) GUILL. VAR. ATROPURPUREUM (BULL.) FOSB.
Authors: Vo Nga Thi , Nguyen Linh Phi , Nguyen Nhut Hoang Minh , Nguyen Phung Kim Phi , Nguyen Suong Ngoc
Published: March 2020

Four lignans were isolated from the dried root of Pseuderanthemum carruthersii (Seem.) Guill. var. atropurpureum (Bull.) Fosb. (Acanthaceae), including (+)-eudesmin (1), (+)-magnolin (2), (+)-syringaresinol (3) and (+)-episyringaresinol (4). Their chemical structures were elucidated by spectroscopic methods as well as comparing with data in the literature. These substances were isolated for the first time from this genus.
SOME COMPOUNDS FROM FLOWER OF WEDELIA TRILOBATA (L.) HITCH. (ASTERACEAE)
Authors: Truong Nguyet Thi Hong , Nguyen Thu Thi Hoai , Ton Quang That , Nguyen Phung Kim Phi
Published: March 2020

Wedelia trilobata Hitch. has not much been chemically and biologically studied. From the flower of Wedelia trilobata, ten compounds were isolated: friedelan-3β-ol (or epifriedelanol) (1), erythrodiol (2), 28-hydroxy-3β -tetradecanoyloxyolean-12-ene (or 3β -tetradecanoyloxyerythrodiol) (3), 3β-henicosanoyloxyolean-12-en-28-oic acid (4), 3β-pentadecanoyloxyolean-28(13)-lactone (5), kaura-9(11),16-dien-18-oic acid (or grandiflorenic acid) (6), 2-(3-hydroxy-3,7,11,15- tetramethylhexadecyl)-3,5,6-trimethyl-1,4-dihydroxybenzene (or tocopherolhydroquinone) (7), gramisterol (8), stigmasterol (9) and b-sitosterol 3-O-b-D-glucopyranoside (10). The structures of these compounds were determined through the interpretation of their NMR data and compared with references.
ALPHA-GLUCOSIDASE INHIBITORY LIMONOIDS FROM THE LEAVES OF AZADIRACHTA INDICA A. JUSS GROWN IN NINH THUAN PROVINCE
Authors: Nguyen Nhi Thi Y , Tran Qui Kim , Tran Quan Le
Published: March 2020

Two new limonoids, named nimbandiol A (1) and azadirachtolid E (2) were isolated from the leaves of Azadirachta indica, along with deoxyazadirachtolid (3), a known compound. Their structures were determined by spectroscopic methods and compared with literatures. Three compounds (1-3) showed moderate a-glucosidase inhibitory activities against Saccharomyces cerevisiae a-glucosidase with IC50 values of 38.7 mM, 85.76 mM and 48.24 mM, respectively.
a-GLUCOSIDASE INHIBITORY ACTIVITY AND CHEMICAL CONSTITUENTS OF Satholobus parviflorus (Roxb.)
Authors: Nguyen Mai Thi Thanh , Phan Trong Nguyen Huu , Nguyen Hai Xuan , Nguyen Nhan Trung
Published: March 2020

Our preliminary screening study revealed that the methanolic extract of Stholobus parviflorus (Roxb.) exhibited potent a-glucosidase inhibitory activity with an IC50 value of 0.05 μg mL-1. Therefore, we carried out activity-guided fractionation of the MeOH extract and isolated three compounds. These compounds were determinated as ferulic acid (1), protocatechuic acid (2) and epicatechin (3) by analysis of spectroscopic data. The IC50 values of these compounds were 45.30, 23.04 and > 100 μM, respectively. Acid tannic was used as a positive control with an IC50 value of 0.91 nM.
ANTIOXIDATIVE ACTIVITIES AND CHEMICAL CONSTITUENTS OF THE ETHYL ACETATE EXTRACT FROM JASMINUM UNDULATUM KER-GAWL
Authors: Tran Anh Thi , Nguyen Binh Thanh , Ho Hoai Thi Cam , Bui Huong Dang Thien , Nguyen Mai Thi Thanh
Published: March 2020

From the total crude ethanol extract of Jasminum undulatum Ker Gawl.’s leaves and stems, five fractionss were obtained by partitioning with petroleum ether, chloroform, ethyl acetate and n-butanol solvents. These five fractions were investigated for antioxidative activity using the DPPH radical scavenging and nitric oxide-inhibitory assay. All the fractions showed antioxidative activity except the petroleum ether fraction. Among the fractionss, the ethyl acetate fraction was the most potent fraction in both assays with the SC50 values of 5.30 μg/ml and 80.90 μg/ml, respectively. Further investigation on the eight sub-fractions isolated and extracted from the ethyl acetate fraction showed that one of these sub-fractions, the TE6 sub-fraction, showed the most significant antioxidative activity with the SC50 values of 3.15 μg/ml and 61.83 μg/ml respectively in the DPPH radical scavenging and nitric oxide-inhibitory assay. From the TE4 and TE6 sub-fractions, three compounds were isolated, including p-tyrosol (1), protocatechuic acid (2) and hydroxytyrosol (3). The structure of those compounds were elucidated by spectrometric methods IR, MS, 1D-NMR, and 2D-NMR.
PHENOLIC COMPOUNDS FROM STEM OF BOERHAVIA ERECTA L. GROWING IN VIETNAM
Authors: Do Lien Thi My , Nguyen Dung Thi My , Nguyen Phung Kim Phi
Published: March 2020

Plants of Boerhavia genus (Nyctaginaceae family) are known to have medicinal properties as antidiabetic, immunomodulatory effect, anticonvulsant, antistress, adaptogenic, hepatoprotective activity. Rotenoids in plants of this genus are reported as a new class of potent breast cancer resistance protein inhibitors.[5] Boerhavia erecta L. was used in traditional African medicine but there are still no scientific research in Vietnam where it is widely grown. In this paper, we report the isolation of four compounds: 2,6-dimethoxybenzoquinone (1), (+)-catechin (2), isorhamnetin 3-O-β- D-glucopyranoside (3) and rutin (4). The structure of these compounds were determined through the interpretation of their MS and 1D, 2D-NMR data. This is the first time that these compounds are isolated from Boerhavia erecta L.
COMPARATIVE STUDY ON TOTAL POLYPHENOLS, FLAVONOIDS CONTENT, AND ANTIOXIDANT ACTIVITY OF PROPOLIS FROM VIET NAM AND OTHER COUNTRIES
Authors: Nguyen Hai Xuan , Nguyen Nhan Trung , Nguyen Mai Thi Thanh
Published: March 2020

Propolis is a resinous mixture that honey-bee collect from tree buds, sap flows, or other botanical sources. The chemical constituents of propolis depends on area as well as plant sources. Almost propolis contains polyphenols and flavonoids, except Myanmar propolis contains triterpenoids. Propolis is well known to various biological activities such as antibacterial, antioxidant, anti-inflammatory and anti-cancer. There is no study on chemical constituents and biological acitivities of Vietnamese propolis, therefore, we comparative study on total polyphenols, flavonoids content, and antioxidant activity of propolis from Vietnam and other countries such as Brazil, Indonesia, Mexico, Myanmar, and China. The results showed that, propolis from China, Mexico, Brazil green type and red type contained high amount of polyphenols and flavonoids, and a corresponding high antioxidant capacity. The IC50 values of DPPH scavenging activity were 33.65, 35.98, 46.59 và 55.49 μg mL-1, respectively, and IC50 values of xanthine oxidase inhibitory activity were 43.84, 6.07, 9.16 và > 100 μg mL-1, respectively. Propolis from Vietnam and Myanmar contained small amount of polyphenol and they showed less antioxidant activity.
CHEMICAL CONSTITUENTS OF THE BARK OF SANDORICUM KOETJAPE
Authors: Doan Trang Thi Bao , Pham Hung Dinh , Nguyen Hoa Dieu Lien
Published: March 2020

Sandoricum koetjape (Meliaceae) has been used in traditional medicine for the treatment of diarrhea, dysentery, and as a tonic for women after giving birth. We have studied the chemical constituents of an ethyl acetate extract of the bark of the species collected in Binh Duong Province and isolated five compounds, bryononic acid, 3-oxo-olean-12-en-30-oic acid, koetjapic acid, 4-methylbenzoic acid and 4-methylbenzoate ethyl. Structure elucidation was performed using mainly 1- D and 2-D NMR techniques.
CHEMICAL CONSTITUENTS OF THE SEED OF CASSIA OCCIDENTALIS L. (CAESALPINIACEAE).
Authors: Nguyen Nhan Trung , Pham Mai Thi Phuong , Nguyen Mai Thi Thanh
Published: March 2020

From the chloroform extract of the seed of Cassia occidentalis L., which was collected in Dong Nai province, four compounds were isolated: emodin (1), ferulic acid (2), quercetin (3) and tectochryzin (4). Their chemical structures were elucidated by using spectroscopic methods and comparision with published data.
MICRO-EXTRACTEUR POUR CONCENTRATION AND DETERMINATION DES IONS DANS L’EAU
Authors: Tran Man Van , Sarrut Nicolas , Ozil Patrick
Published: March 2020

Ce travail concerne le développement des laboratoires sur une puce (Lab-on-achip) qui permettent de réaliser les nombreuses étapes de l'analyse sur un échantillon de micro-volume et qui fait l'objet du défi scientifique et industriel. Nous présentons la mise en oeuvre un microextracteur qui effectue l'extraction en ligne de concentration de détection de molécules cibles circulant dans un véhicule liquide. Le système comprend un microcanal primaire contenant un liquide porteur circulant aqueuse et un fluide secondaire non miscibles de stockage organique circulant dans un canal adjacent. L'interface biphasique est stabilisée par modification de micro-piliers verticaux dans le silicium. Nous présentons (i) l’analyse physique des phénomènes qui se produisent sur l'interface des fluides non miscibles; (ii) la fabrication du micro-extracteur et les processus chimiques utilisés pour traiter la surface des canaux ; (iii) la démonstration du système avec une approche intégrée Spectrophotomètre UV-VIS.
ABOUT THE ISSUE OF WORD ORDER OF SOME COMPOUND NOUNS IN THE SOUTH BAHNAR SUB GROUP
Authors: Le Cuong Khac
Published: March 2020

Language activities are closely connected to cultural components of a community. They are elements of a culture. Language is characteristic of a culture, and is the requirements for thinking activities to take place. Thanks to language, reality is divided into the concept that is expressed through words and phrases. It is words and phrases that fix ideas about the reality of humans into specific concepts. Therefore, we can say that language is multi-colored paintings of culture, and an embodiment of ethnic culture. The paper mentions the similarities and differences between the structure of coordinated compound nouns in the languages belonging to the South Bahnaric sub group and that of Vietnamese. These are very interesting examples illustrating how cultural characteristics have been shown by the mirror of language.
MOTIFS OF SACRED STONE/ PETRIFACTION AND STONE-WORSHIPPING THROUGH FOLK TALES OF MALAYO-POLYNESIAN ETHNIC PEOPLES IN VIETNAM
Authors: Phan Vien Xuan
Published: March 2020

This writing is about motifs of sacred stone / petrifaction as well as their abundant variants / forms such as mountain god, sacred stone, stone ogre, magical birth from stone, human-shape stone, human-shape stone turning into humans, humans turning into stone, crying stone, lithopone, litho-gongs etc. in folk tales of Malayo-Polynesian ethnic peoples in Vietnam in comparison with the Kinh who are the main people. When surveying and comparing variants / forms of motifs, the paper gives, to some extent, expressions of stone worshipping which are mentioned in the tales, in the spiritual life of Malayo-Polynesian and Kinh people since the old days.
MOTIF/ARCHETYPE THE OLD MAN IN THREE SHORT STORIES OF ANTON CHEKHOV, ERNEST HEMINGWAY AND NAM CAO
Authors: Dao Chuong Ngoc
Published: March 2020

Basing on poetics, structure of works and motif / archetype of the Wise Old Man, the paper examines and compares the image of the Old Man in three short stories: Tocka by Anton Chekhov (Russian), A Clean, Well-Lighted Place by Ernest Hemingway (American) and Lao Hac by Nam Cao (Vietnamese). In each short story, the old man leads a lonely life. Their loneliness can’t sometimes be shared or isn’t shared such as the case of Iona Potapov, in Tocka of Anton Chekhov, who just lost his son last week; of the Old Man, in A Clean, Well-Lighted Place of Ernest Hemingway who suffered from loneliness in his old age; and of Lao Hac, in Nam Cao’s work of the same title, who, with hopelessness, has gone away to work in plantation for three years because his poor son couldn’t afford to get married. If the impact of rural elements in the process of social development from agriculture to industry is taken into consideration, we can put these three short stories in the following sequence: Lao Hac (1943) of Nam Cao, Tocka (1871) of Anton Chekhov, and A Clean, Well-Lighted Place (1933) of Ernest Hemingway. It seems that the more the society is urbanized, the more loneliness can’t be wiped out. Now, the deeply rooted characters of the archetype of the Wise Old Man (according to Jung) are expressed in only three points: how to best bahave in loneliness.
THE MYTHS CHARACTER MEANING IN SOME VIET NAM NOVELS
Authors: Nguyen Tien Thi Kim
Published: March 2020

In reality, complexities of human life is always a mysterious dimension to us. However, they can’t be well explained by conventional rationalist mind. Human existence is based on the legendary virtual real criteria which was brought into literature by writers. In our opinion, the fact that writers built characters of myths has made two goals reflected in novels. The first is to open up the capacity of acquiring knowledge about mysteries in humans. The second is the desire to integrate into a simple life.
THE STRONG-WILLED SPIRIT TO INDEPENDENT THOUGHTS AND CREATIVE THINKING IN NGUYEN AI QUOC’S PROCESS OF NATIONAL SALVATION
Authors: Vo Sen Van
Published: March 2020

The paper focuses on analyzing one of the most important firm spirits in President Ho Chi Minh’s character which is the ability to think independently and creatively. That firm nature of his is specifically expressed in his national salvation path of the early twentieth century.
THE TREND TO GO ABROAD FOR NATIONAL SALVATION IN THE EARLY 20th CENTURY AND SOME EXPERIENCES FROM VIETNAM’S INTEGRATING PATH INTO THE WORLD
Authors: Tran Luong Thi Thu
Published: March 2020

The paper analyzes the setting and mobilization of Vietnamese revolution in the early 20th century to affirm that the deadlock of old-style struggles, the change and innovation of the world’s climate, and the urge of historical requirements brought to Vietnam of the early 20th century the going-abroad movement for national salvation by Leader Nguyen Ai Quoc. These going-abroad patriotic combatants seeking for ways to national salvation in the early 20th century were pioneers who did trigger a new era – the period of Vietnam’s revolutionary integration into the world’s revolution.
SELF-LEARNING OF FOREIGN LANGUAGE STUDENTS IN THE CREDIT SYSTEM HELD AT THE UNIVERSITY OF SOCIAL SCIENCES AND HUMANITIES: PROBLEMS AND SOLUTIONS
Authors: To Thanh Minh
Published: March 2020

As the result of the research work on self-learning of foreign language students in the credit system held at the University of Social Sciences and Humanities, this article has firstly searched for problems facing the students in studying by themselves, secondly determined a number of things the students are supposed to do with patience and finally raised some suggestions to the teaching staff, the departments of foreign languages and the university in order to improve the students’ ability to conduct their self-learning, bettering their expected learning outcomes. The result indicates that despite their growing awareness of how significant self-learning is, the students neither have enough time nor maintain the time consciously planned for self-learning. Negatively affecting the students’ self-learning are their five subjective factors: lack of adequate time for self-learning, failure in search for appropriate methods of learning, lack of basic knowledge on given subjects, lack of self-belief to conduct their learning successfully, and lack of motivation as well as determination to study by themselves; among the five objective factors hindering the effects of self-learning are the students’ inability to get access to academic resources, their instructors’ lack of attention to share experience in and provide guidance on self-learning, the students’ long time spent on class meetings, lack of space, especially on campus, quiet enough for self-learning, and lack of equipment specialised for foreign language learning. It has been highlighed that only if (1) the students proceed their self-learning however difficult it is, (2) the teaching staff play their dual role in organsing and controlling the students’ self-learning, and (3) the foreign language departments as well as the university actively support teaching and learning activities can the students’ self-learning turn out to be fruitful.
ANALISIS GAYA BAHASA DALAM CERPEN DEDAUNAN GUGUR DI SEPERTIGA MALAM KARYA SUMIATI AL YASMINE
Authors: Irma Cintya Nurika
Published: March 2020

Penelitian ini bertujuan untuk mendeskripsikan: (1) pemakaian gaya bahasa yang terdapat dalam cerpen Dedaunan Gugur di Sesayup Sepertiga Malam karya Sumiati Al Yasmine (2) citraan yang terkandung dalam cerpen Dedaunan Gugur di Sesayup Sepertiga Malam karya Sumiati Al Yasmine. Penelitian ini merupakan penelitian deskriptif kualitatif. Metode yang digunakan adalah metode analisis. Sumber data yang digunakan adalah cerpen “Dedaunan Gugur di Sesayup Sepertiga Malam” karya Sumiati Al Yasmine. Subjek  penelitian ini menggunakan cerpen kompas yang diterbitkan pada 23 Oktober  2019. Teknik pengumpulan data menggunakan teknik catat, teknik analisis dengan membaca keseluruhan isi cerpen “Dedaunan Gugur di Sesayup Sepertiga Malam”. Teknik keabsahan data dilakukan dengan kajian stilistika, gaya bahasa dan citraan sebagai alat untuk menganalisis. Uji penyajian data dengan teknik informal berupa tulisan. Hasil penelitian menunjukkan (1) gaya bahasa yang terdapat cerpen Dedaunan Gugur di Sesayup Sepertiga Malam karya Sumiati Al Yasmine terdapat empat majas meliputi simile, hiperbola, metafora, dan personifikasi. (2) citraan yang terkandung dalam cerpen Dedaunan Gugur di Sesayup Sepertiga Malam karya Sumiati Al Yasmine, terdapat tiga citraan yang ditemukan meliputi  citraan pendengaran, citraan penglihatan, dan citraan gerakan.
Memory and Cognitive Learning Strategies from the Teachers and Learners Perspectives
Authors: Nshiwi Darin , Aziez Feisal , Alkhrisheh Hazim
Published: March 2020

This research falls within the area of language learning strategies (LLS) in English as a foreign language (EFL).  Although the impact of LLS on vocabulary learning has attracted ample of studies in the field on teaching English as a second or foreign language. However, teachers and learners’ views of LLS have not been investigated enough. To that end, this research sheds light on the adopted approaches while teaching these strategies by EFL teachers at the Higher Language Institute. It investigates whether these strategies are taught implicitly, explicitly or both. To conduct this study, the researcher applied two questionnaires: the questionnaires are used to evaluate the used memory and cognitive strategies by teachers and intermediate learners at the HLI. These instruments are applied on the sample that includes 36 intermediate and 30 EFL teachers at the HLI. The data obtained was dealt with descriptively and analytically. The findings show that the majority of teachers tend to train students to use memory and cognitive strategies implicitly. In addition, it was noticed that both teachers and learners use the same set of strategies which implies that teaching approaches has a direct impact on the used strategies by the learners.
PEMANFAATAN MEDIA PEMBACA LAYAR PADA MAHASISWA TUNA NETRA DI STKIP PGRI JOMBANG
Authors: Sulistyowati Heny , Rafi Muhammad Farhan
Published: March 2020

Dalam proses perkuliahan terdapat beberapa strategi yang bisa diterapkan agar setiap materi yang diberikan mampu diterima dengan baik oleh semua mahasiswa. Bagi penyandang disabilitas khususnya mahasiswa tunanetra juga membutuhkan strategi pembelajaran / media pembelajaran yang mampu membuat penyandang disabilitas memahami materi perkuliahan dengan baik. Tujuan dari Penelitian ini adalah untuk mengetahui pemanfaatan media pembaca layar pada proses pembelajaran metode penelitian bagi mahasiswa tuna netra di STKIP PGRI Jombang. Media Pembaca layar mampu memberikan kemudahan dalam memahami materi perkuliahan karena media ini memberikan efek suara pada komputer terhadap semua meteri yang diberikan oleh para pendidik dalam proses perkuliahan dan mengerjakan tugas. Peneliti mengamati pemanfaatan media pembaca layar dalam perkuliahan metode penelitian. Subjek penelitian ini adalah Bagus Satriawan, Mahasiswa tuna netra Prodi Bahasa dan Sastra Indonesia STKIP PGRI Jombang angkatan 2016. Dari Hasil pengamatan dan wawancara diperoleh data bahwa Media pembaca layar mampu memberikan kemudahan kepada mahasiswa tuna netra dalam membaca materi, mengerjakan tugas dan menjawab ujian semester.
Analisis Prediksi Kelulusan Mahasiswa Menggunakan Decission Tree Berbasis Particle Swarm Optimization
Authors: Hendra Hendra , Azis Mochammad Abdul , Suhardjono Suhardjono
Published: March 2020

Good accreditation results are the goal of the college. With good accreditation, prospective students can glance at and enter the tertiary institution. To achieve this, there are several aspects that affect good accreditation results, one of which is graduate students who play an important role in determining accreditation. Timely graduate students can benefit the college or a student. Graduates can be predicted before the final semester using a method one of which is the decision tree. Decision tree is a method that is simple and easy to understand by producing rules in the form of a decision tree, but using a decision tree model alone is not enough to produce optimal results. So we need a method for optimization that is particle swarm optimization with advantages can improve accuracy by eliminating unused features. From the results of research with primary data of 2000-2003 graduate students in Amik PPMI Tangerang explained that the particle swarm optimization method can increase accuracy by 87.56% and increase by 01.01% from the decision tree method with a value of 86.55%. From the particle swarm optimization method can also find out which unused attributes have no weight, so that way can improve accuracy. From the results of the increase, it can be used by the Amik University of Tangerang to prevent students from graduating on time.
Geopolitics of Religion: How Does Religion Influence International Relations and States’ Foreign Policies?
Authors: Kadri Hichem , Abdelsalam El Fatih Abdullahi
Published: March 2020

Undoubtedly, religion is one of the main factors that increasingly contribute to the shaping of international relations. As it was in the European middle ages, religion and geopolitics have always had ties of one sort or another. Imperialism and nationalist doctrines have found purpose and justification in religious differences and, religious zealotry was functioned to be both cause and consequence of the concentration of state power and the rivalries among existing competitors. The involvement of numerous religious groups and movements in the political scene led the situation to be extremely complicated. The purpose of this article is to see to what extent religion as a soft power has a role in forming international politics. Also, to discuss the role the superpowers and regional powers play in dealing with the question of religious issues. With an argument that these issues including religious conflicts are led by international and regional powers which function these groups in a proxy war to be part of their rivalry overpower, and to achieve their national interests through their foreign policies at the cost of considerable environmental degradation and a massive death toll of people.
Customary Law Marriage Practice in Nigeria: Women and Human Rights
Authors: J. Adams Dr. Adoga-Ikong , Takim Otu Dr. Michael
Published: March 2020

Marriage has been defined as a voluntary union between a man and a woman or women (in the case of customary marriage) for life to the exclusion of any other. In other words, it is a legal union which exists between a man and a wife(s). The practice is acceptable world over and it is usually legally recognized. In Nigeria, though there exist a statutory marriage which is monogamous in nature but most prevalent is the customary marriage. This marriage is practiced among all the tribes in Nigeria despite the fact that there exist statutory marriages. One thing that is pertinent here is that the practice of customary marriage in Nigeria has violated the human rights of the couple especially the women. The women in Nigeria have not enjoyed their human rights in their customary marriage. This is due to certain customs and traditions that do not allow for such. Among the few are undue reliance on consent of their parents. Before a marriage can be contracted female genital mutilation, the corresponding rights to bring an action for dissolution of marriage if the other party commits adultery, etc. As a result of the above (and many others) Nigerian woman is deprived of her rights. This work seeks to examine these practices which stand as hindrances to the rights of a married woman in Nigeria and therefore suggests that Nigerian women should be allowed to enjoy her basic human rights (even as a married woman) just like her husband, also that the practices in other climes where women enjoy their human rights should be imbibed in Nigeria.
Factors that Influence the Intention to Reuse Public Transport Routes Involving Transfer in the Early Stage of Integrated Transportation System Development: MRT Case in Jakarta
Authors: Langi Rivaldo Sirilus , Rizky Ramadhan Farhan , Michael Pelenkahu Luciano Vito , Murwani Ina Agustini
Published: March 2020

To improve the image of public transportation and encourage citizen to use it, the transportation infrastructure in Jakarta has been modernized by developing an integrated transportation system with MRT as the center of the integration. With the history of high preference to private vehicle use and the growing popularity of sharing ride, it is interesting to see whether the usage of public transportation will increase. Although the transportation system is being integrated, users of public transportation still need to exchange modes of transportation within the system and outside the system to finish the trip. This study aims to identify factors that can influence the intention to reuse public transportation routes involving transfer. The integration of Theory Planned Behavior (TPB) and other factors such as values, images and self-efficacy are investigated on the intentions to reuse routes involving transfers. The data is collected using questionnaires distributed in Jakarta MRT transit-oriented development and analyzed using PLS-SEM. Image and Attitude are proven not affecting the intention to reuse public transport routes involving transfer. The intention is influenced by perceived behavioral control (PBC) which is driven by self-efficacy and perceived controllability and subjective norms. This result to some extent is not consistent with the previous research about public transportation and has given another perspective about public transportation routes involving transfers especially in the early stage of integrated transportation system development.
Effect of Group Participative Communication and Economic Empowerment of Independent Women
Authors: Kuswanti Ana , Saleh Amiruddin , S Hubeis Aida Vitayala , Puspitawati Herien , Abdul Muqsith Munadhil
Published: March 2020

The study aims to analyze the effect of participatory group communication and the economic empowerment of female household towards economic independence. The female head of a family in the city of Batang, central Java, Indonesia has a condition of economic limitations. Therefore, the Pekka group paid attention to women heads of households to be empowered. The respondents were 229 female heads of household, consisting of nine single, married 150, widowed 70 Pekka. The research found a real influence between participatory communication between groups and economic empowerment on Pekka’s economic independence. The results show that the direction of problem-solving communication has the most contribution in forming participatory communication groups, and access to capital has the most contribution in forming economic empowerment in realizing Pekka’s economic independence.
Melodrama y pedagogía pública: La construcción de memoria desde la ficción televisiva
Authors: Cabalin Cristian , Antezana Lorena
Published: April 2020

Este artículo presenta los principales resultados de una investigación que se propuso analizar la construcción de memoria cultural a través de series ficcionales que representaron los tiempos de la dictadura de Augusto Pinochet en Chile. A partir de entrevistas y focus groups con jóvenes de entre 18 y 24 años que no vivieron ese periodo histórico, se discute la importancia de las estructuras melodramáticas de las series para promover los aprendizajes sobre el pasado reciente, enfatizando así el rol de pedagogía pública que cumple la televisión.
TEACHER PERCEPTION TOWARDS THE USE OF CODE SWITCHING IN EFL CLASSROOM: A CASE STUDY IN ENGLISH INTENSIVE PROGRAM AT STATE ISLAMIC INSTITUTE IN CIREBON
Authors: Afriani Royani
Published: March 2020

The present study is descriptive qualitative research. The study aims to investigate and show the teachers perceptions toward the use of code-switching (CS) used by teachers in EFL classroom, especially in English intensive program at a State Islamic Institute. A four-section 20-item questionnaire was developed and distributed to the teachers. The data from the questionnaire were analyzed. The results display that teachers' perceptions are positive towards the use of code-switching in the EFL classroom. Teachers believe that the use of code-switching could help them in eliciting content, manage the classroom, and show interpersonal relations in the classroom. However, the use of code-switching is beneficial for learners but it also needs limitation because it could damage the process of language acquisition as learners don't get comprehensive input.