In the recent years, supply chain coordination has been concernedas one of most popular solutions tohelp the industries reduce costs and improve competitiveness. In this report, we will show asystematical application of theVMI (vendor managed inventory) for asupply chain with a single vendorand multiple retailers. Initially, we assume that the retailers take care of their respective replenishmentdecisions. Then, by adopting vendor managed inventory, the organizations involved can be gained through cost reduction based on numerical analysis and Lingo optimization software.

Supplier selection is a multi-criterion decision problem which includes both qualitative and quantitative factors and has a strategic importance for many companies. The objective of the article is to propose a Fuzzy Analytic Network Process and Goal Programming (FANP and GP) model which could be used to green supplier selection and allocation. First, green suppliers are selected by Fuzzy Analytic Network Process method which fuzzy numbers are used to evaluate and be transferred to real numbers, Super Decision software is applied to solve FANP and the results of method are weights among criterias and suppliers. After that, a goal programming model to order allocation for suppliers is built from the results of the FANP model and solved by Lingo software. A case study used data from a wood company was done to test the proposed model. The results showed the feasibility of the proposed model.

In the control system, the values ​​of the parameters often does not know exactly because of its changes over time or insufficient information. To solve this problem, an adaptive control method based on Radial Basis Function neural network was proposed to control the beam and ball system model. At the same time, We have also the sustainability of the controller was evaluated by changing reference signal, ball’s weight and noise impacts generated by sensor of the model.  The evaluation of sustainbility was performed by simulating the system with MATLAB®/Simulink. The results showed that responsesignal met desired signal under the varying of such parameters. Besides, this research is the fundamental to develop an adaptive control for complex models such as omni-directional three-wheeled robots in the future.

The objectives of the study were to estimate biomass and carbon dioxide (CO2) absorption of Melaleuca forest in two groups of ages under and over 10 years old in Lung Ngoc Hoang Natural Reserve, thus establishing the initial foundation for forest managers to implemete the environmental services payment and to propose sustainable solutions for Melaleuca forest development. The parameters, such as diameter at breast height (DBH) including tree covers, maximum height, tree density, partly biomass, litter falls of Melaleuca tree and shrubs were collected inside the eighteen standard quadrats (sized 10 m x 10 m). The density of under 10-year-old Melaleuca forest (as 4,550 trees per hectare) was higher than that of over 10-year-old Melaleuca forest (as 3,510 trees per hectare). The under 10-year-old forest showed significant lower DBH and lower maximum height than those of over 10-year-old forest. The interrelation between the DBH and biomass was rather height (i.e. R = 0.93). Review in litter fall, there was not statistically significant between the two aging groups of Melaleuca forest. Ten bush species were found in the Melaleuca forest research site. In which, Phragmites vallatoria (L.) Veldk and Stenochlaena palustris (Burm. f.) Bedd were principal plant species. The amount of CO2 absorption by two aging groups of trees were 200 and 250 ton CO2 per hectare, respectively.

Calcination is one of the effectively thermal pretreatment methods to enhance phosphorus adsorbability of cockle shells. The objective of the study is to evaluate the effect of three thermal treatments of 550, 750 and 950°C on P-adsorption capacity of cockle-shell powder (d≤2,0 mm). Process of phosphorus adsorption was conducted in the laboratory condition for 24 h with PO43- concentration of 20 mg/L. The results showed that the cockle-shell powders heated at the temperature >750°C had higher phosphorus adsorbability. The P removal efficiency of the treatment 950°C was 99.2%. In other words, 1 g cockle-shell powder could adsorb 0.07 mg P. In addition, thermal treatments also affected colour, shape and surface structure of cockle-shell powder.

The study aimed to upgrade the treatment efficiency at primary units of sugar cane processing wastewater treatment plants. The results showed that the electroflotation process operated with the most suitable operation parameters (electrode slope of 45o, distance between electrode of 2 cm, current voltage of 12 V, current density of 238 A/m2 and hydraulic retention time of 30 minutes) could remove 69.44% of turbidity and 38.58% of COD from the influent. If wastewater was coagulated at pH = 7.5 with added 240 mg/L of PAC, 5 mg/L of polymer anion A110 before entering electroflotation unit, the removal efficiency of turbidity, SS, COD, BOD5, TKN, TP increased to 99.24%, 94.27%, 57.74%, 58.51%, 88.07% and 98.39% respectively. Therefore, the combination of chemical coagulation and electro-flotation process could be used to reduce pollutants load for biological treatment process at sugar cane wastewater treatment plant.

The present study is aimed to understand possible impacts of saline intrusion on agriculture and aquaculture in coastal areas of the Vietnamese Mekong Delta with the case study of the Tran De district, Soc Trang province. The research was based on individual interview with farmers who grow rice or raise shrimp in the study area and local staffs on such impacts in early 2016. The results showed that saline intrusion mainly affected rice farming systems in the study area in 2016 but did not have any significant negative impacts on brackish and saline-based aquaculture. To reduce negative impacts of saline intrusion on aquaculture, farmers diluted the shrimp-pond water by adding freshwater from both groundwater and pipe water, leading to the reduction of water salinity. Therefore, aquaculture (shrimp farming) can be considered as less affected from saline intrusion than agriculture. Saline intrusion and drought had significant impacts on labor migration, leading to significant variation of labor force in the study area.

The Vietnamese Mekong Delta (VMD) has been seriously impacted by climate change leading to some unexpected changes to the surface water resources. Saline intrusion has increased due to sea level rise causing the fresh water scarcity. The research was conducted in order to assess the effectiveness of the irrigation systems in agricultural areas of the Soc Trang province (one of the coastal provinces of the VMD). The data from directive interview was analyzed by descriptive statistics, spatial and SWOT analysis. The questionnaire was built based on block 8 of the water resources governance framework “Ten-building Block”. Results showed that irrigation system was reflected to play an important role in agricultural development in Soc Trang, especially in regulating surface water. The irrigation system prevented the complicated impacts of salinity, thence it also reduced the damage to agriculture cultivation. However, the density of constructions for irrigation was unevenly distributed and some of them were too degraded to well regulate the water force. Besides, there were significant changes of the eco-social and environmental context depending on operating the irrigation systems. The economic and social aspect were improved significantly after having the irrigation systems while the environment was reflected to be degraded because the irrigation system caused great affects on natural conditions, especially in water and land quality.

Zeolitic imidazole framework-HL1 (ZIF-HL1) is solvothermally synthesized by the reaction of zinc nitrate hexahydrate and the mixture of two imidazolate linkers, 2-methylimidazole and 5-benzimidazole in N,N-dimethylformamide. The structure of ZIF-HL1 was determined by X-ray diffraction analysis, which is indicative the cubic system with cell parameters of a = b = c = 17.4512 Å and Vcell = 5314.64 Å3. This material was also demonstrated to be highly porous, water stable, and exhibited high affinity to CO2. The CO2 isosteric heat adsorption of ZIF-HL1 of 29 kJ mol-1 is competitive to reported ZIFs with highest CO2 affinity.

From real data collected at the Maternity Hospital of Can Tho city, by methods of univariate and multivariate statistical analysis, the article is aimed to determine factors and group factors that have statistical significance to influence to weight of newborn . Based on the classification models, an optimal model in forecasting standard weight of newborns was built as well. The researched results could be useful information in caring health of pregnant women and applied to many other problems in reality.

Fatty acid based dialkanolamides or carbon-carbon double bond side chains modified with polar groups (dihydroxy) have been known to possess good surface activities. Treating methyl oleate with diethanolamine at elevated temperature has led to the formation of N,N-dihydroxyethyloleamide in good yield. Upon oxidation using HCOOH/H2O2 system, the carbon-carbon double bonds on methyl oleate hydrocarbon side chain were successfully epoxidized and subsequently underwent ring opening to form the corresponding dihydroxystearate product. This compound was then directly treated with diethanolamine to afford the desired 9,10-dihydroxy-N,N-dihydroxyethyl octadecanamide in good yield.

In this paper, a convergence theorem by the hybird Ishikawa iteration for a family of mappings satisfying condition  in Hilbert spaces is established. Also, some results for the convergence of the hybird Ishikawa iteration for nonexpansive mappings and mappings satisfying condition  in Hilbert spaces are derived from the obtained theorem. In addition, an example is given to illustrate the convergence for the hybird Ishikawa iteration for a mapping satisfying condition  in Hilbert spaces.

The structures, growth pattern and energetic properties of clusters Aun in the range of n = 2 – 14 are systematically investigated using the meta-GGA BB95 functional in conjunction with the consistent-correlation pseudopotential cc-pVDZ-PP basis set. In general, even-electron systems prefer a singlet ground state, while odd-electron species prefer a doublet state. Concerning the growth pattern, small clusters (n = 2 – 10) are found to favor the 2D planar structures, and a 2D–3D structural transition may occur at Au11. The computed results also show that there exist extreme odd - even oscillations in binding energies (BE), fragmentation energies (Ef), and second-order energy difference (∆2E); clusters with an even number of atoms are predicted to be more stable than the odd-numbered counterparts.

The study was conducted to determine the prevalence of E. coli on ducks in four districts of Can Tho city:  O Mon, Co Do, Thot Not and Vinh Thanh from August 2015 to June 2016. The results showed that E. coli infection rate was 5.55%, the mortality rate was 2.14%. In total 200 ducks with disease symptoms positive rate for E. coli was 100%; The proportion positive for E. coli from feces, liver, spleen, bone marrow and lung were 100%, 81 %, 74.5%, 67.5% and 67%, respectively. Prevalence of E. coli decreased by ages, the highest rate was isolated in duck under five weeks and lowest in duck over twelve weeks. Prevalence of E. coli was not significant between ducks in the fields and farms; however, it was significantly different between rainy season and dry season, breed of ducks. Antimicrobial susceptibility testing showed the high resistance to ampicillin (75.16%) and trimethoprim/sulfamethoxazole (64.71%). The antibiotics were sensitive to E. coli at high rates from 76.47% to 99.35% including ceftazidime, fosfomycin, colistin, gentamicin and norfloxacin. Up to 114/153 strains were multi-resistant to antibiotics with 59 resistant phenotypes. Phenotypic resistance to ampicillin - streptomycin - trimethoprim/ sulfamethoxazole was the most common type.

Study on the prevalence and antibiotic resistance of Escherichia coli in diseased duck in Hau Giang province was carried out from August 2015 to June 2016 with aims to survey prevalence, the distribution of serotype and antibiotic resistance of Escherichia coli isolated from diseased duck in Hau Giang province. The research was conducted methods of bacterial isolation according to Vietnamese standards 5155-90. Simultaneously, the distribution of 4 serotypes: O1, O18, O78, O111 from 110 E. coli serotypes isolated were examined by rapid agglutination on sliders and antibiotic resistance of these serotypes was also screened with 10 antibiotics by methods of disc diffusion. Study results showed that 38 out of 40 ducks flocks were positive with E. coli comprising 95%, and 158 out of 200 specimens including samples of feces, livers, spleens, lungs, and bone marrows comprising 79%. The result of serotyping show that O78 was most popular serogroup (8.18%), followed by O1 (6.36%), O18 (5.45%) and the least one was O111 (3.63%). E. coli was highly resistant to many antibiotics such as: streptomycin and ampicillin, but also highly sensitive to amikacin, fosfomycin. The study results show that colibacillosis was quite popular disease in ducks in Hau Giang province.

Measurement of anti-rabies antibodies in dog serum samples collected from slaughter-houses in CanTho city was conducted from February 2015 to November 2015 by using indirect enzyme-linked immunosorbent assays (ELISA) (SERELISA® Rabies Ab Mono Indirect kit, France). A total of 184 dog serum samples collected from slaughter-houses in 6 districts in CanTho city was tested for anti-rabies antibodies. The results showed that the protection rate of sampled dogs is 14.13%. The protection rates detected in dogs from urban slaughter-houses (16.7%) were higher than that from the suburbs (10.53%). The proportions of protected dogs were age-dependent, the highest rate (31.25%) was in dogs upper 2 years old, next in dogs from 1 to 2 years old (17.51%), lowest in dogs under one year old (8.5%); and breed-dependent (foreign dogs were better than local ones) but sex-independent (around 14%). However, there was not a statistically significant difference between those values.

The study was conducted to investigate the prevalence and determination of Salmonella Weltevreden pathogenicity genes on geckos in Soc Trang, Tien Giang and Ben Tre provinces from August 2015 to July 2016. A total of 805 geckos’ feces samples were collected at swine farms, households with livestock activities and households. The results showed 132 samples were positive with  Salmonella at proportion 19,25% and with the predominant serovar being S. Weltevreden was 50/132 strains at rate 35.3%. The prevalence of Salmonella on geckos was not significantly different by samples at swine farms (21,25%) and households with livestock activities (15,87%); however, it was significantly different by samples at swine farms and households without livestock activities (11,88%). Salmonella Weltevreden strains were also found in swine farms (19 strains), households with livestock activities (17 strains) and households (14 strains). Up to 4/4 pathogenicity genes were determined with the proprtion being hilD, sifA, sopB and pefA at 100%. None of the isolated S. Weltevreden strains were resistant to tested antibiotics.

The apxIVA gene has been frequently used as one of the most important molecular marker in the detection of Actinobacillus pleuropneumoniae that cause porcine pneumonia. The research selected 135 samples from nasal swab, lung pig and tonsil for all of ages in households, farm and slaughterhouses, isolated on chocolate agar, identified by PCR method, antibiotic resistance testing by disk diffusion method of Bauer et al. (1966) and PCR. The rate of respiratory disease in swine in Kien Giang province was 11,14%.  and isolation rate of A. pleuropneumoniae in swine in Kien Giang province was 27,69% (18/65). A. pleuropneumoniae isolated in pigs in Kien Giang province was found resistant to antibiotics such as amoxicillin (88.89%), streptomycin (72.22%), gentamicin (66.67%), ampicillin (50.00 %) and colistin (50.00%). The rate of antibiotic resistance genes blaROB-1, strA, strB, aadB, pmrA, pmrB with 33,33%; 27,78%; 72,22%; 38,89%; 33,33% and 33,33% respectively.

This study was carried out from October 2015 to September 2016 in four districts of Dong Thap province. The purpose of this research was to determine the ratio of E. coli infection in the analysis samples, to define the serotypes of pathogenic bacteria and to test the antibiotic susceptibility of E. coli isolated from ducks in Dong Thap province. In Dong Thap, the ducks for eggs are breeded mainly on the field, while the ducks for meat are raised in the captive way. The investigated results on 60,135 ducks showed that 18.36% of the ducks could be suspected by the E. coli infection. The ratios of the appearance of white-green diarrhea, swelled eyes, and neurology symptoms were 99.07%, 68.22%, and 20.69%, respectively. The E. coli infection ratio of the ducks was 99.53% with 81.22% lesion air sacs, 71.36% swell livers, and 12.21% green livers and edematous lungs. The E. coli infection ratios of different breeding methods, ages of duck, purposes of use, or farming seasons do not have statistically significant. The E. coli highly existed in the ducks, mainly was O78 (9.29%), and resited to several antibiotic with MDR phenotype.

Organic waste, mainly containing cellulose, is an important source causing environmental pollution if it is not treated. Therefore, isolation and selection of indegenous bacteria which can degrade organic waste is necessary. Fifty- one cellulose degrading bacterial isolates were isolated from the intestine of Holotrichia parallela and Lubricus terrestris, including fifteen isolates from Hau Giang province and thirty-six isolates from Soc Trang province. Most of them have rod shape, motility, forming milky-white with colony, entire margin and convex. Cellulose degrading ability of the bacteria was carried out. The results showed that 25 isolates had cellulase enzyme activity. Specially, two isolates named CS2 and CH8 isolated from Holotrichia parallela and TS3 isolated from Lubricus terrestris with the high enzyme activity were identified as Bacillus cereus strain L5, Bacillus flexus strain KJ1-5-910 and Bacillus subtilis strain 168, respectively.

This research was carried out to systematize and assess the appropriateness of farmer’s indigenous knowledge and their adaptive capacity to floods in An Giang province, results of the research will provide a scientific foundation for proposing solutions to conserve and enhance the use of indigenous knowledge in reducing the vulnerability of people living in flooded areas. The results showed that local people used several effective indigenous knowledges for coping with floods. However, the valuable indigenous knowledge has not been recorded yet, nor documented in written materials for sharing to young generations and communities; some indigenous practices are not suitable with the current requirement for flood adapation strategies. The livelihood vulnerability index (LVI) in diffirent zone (upper zone, middle zone, and lower zone) was decreasingly based on major components as social networks, knowledge and skills, natural resources, finance and incomes, livelihood strategies, natural disater and climate variability. The research also suggests some solutions to conserve the valuable indigenous knowledge in adapting to climate change of local people.

A feasible land-use planning was depending on consent of the local people who use this land and its stakehokders. It has the potential to solve land-use conflicts. The methods used for this study includessecondary and a primary data collection, scientific papers, households’ interview, participatory rural appraisal (PRA) approach. The main purpose of the study was to compare the interaction between participatory land use planning of bottom-up approach (PLUP) with land evaluation FAO (1976, 2007) and the land use planning of top-down management. The results showed that there were some conflicts in objectives of land use by bottom-up and top-down approaches, but the interaction of stakeholders involved in the process could give possible solutions for reducing conflicts, which may lead to the trade-off of stakeholders in establishment of agricultural land use planning with high efficiency and possibility. Proposed land use planing responding to local conditions and also met the satisfaction of local people’s demands with ecological requirement and objectives of local government development. The ressults of this study contribute to enhancing sustainable socio-economic development of Tra Hat hamlet.

In rice cultivation, fertilizer expense is about 30% of total input, but its overuse cause environmental pollution. Therefore, the study "Evaluating the effect of slow release fertilizer on growth and yield" was carried out in Phu Cuong cooperative, Tam Nong district, Dong Thap province during the 2016 Summer-Autumn crop, on slightly sulfate soil in order to increase fertilizer efficiency. The experiment was arranged in the randomized complete block of 6 fertilizer treatments with 3 replications. Slow release fertilizer is the common chemical N-P-K fertilizers covered by polymer in order to control the solubility according to the need of rice plant in all growth stages, so slow release fertilizer wasapplied onlyone time before the final soil preparation. Experimental results showed that slow releasefertilizer provided enough nutrients for whole rice crop. In particular, slow release fertilizer treatment with N-P-K: 60-46-39 achieved the highest efficiency. It was equal to 50% nitrogen, 57% phosphorus and 65% potassium of traditional treatment's formula, while obtained the same quality and yield, and low pest damage.

This study was performed to find out the best of trophic conditions and glucose concentration for Chlorella sp. growth. Two experiments were set-up in laboratory with temperature at 25 - 28oC. Chlorella were cultured in 8L glass vessel with salinity of 25‰ and Walne medium. Initial density of algae was 2 million cells/mL. In the first experiment, Chlorella sp. were cultured in 3 different trophic conditions: phototrophic, mixotrophic and heterotrophic. Glucose was supplied as organic carbon source for mixotrophic and heterotrophic cultivation in 10g/L concentration. In the second experiment, Chlorella sp. were cultured with different glucose concentrations of 5g/L, 10g/L and 15g/L in mixotrophic condition. Results showed that mixotrophic treatment obtained highest density (106,53±0,69×106 cells/mL) and significantly different from others (p

This study was carried out from August to December 2014, through interviews 30 rolation shrimp-rice farmers in U Minh (UM) and 30 farmers in Thoi Binh (TB) districts, Ca Mau province. The collected information was (1) technical and economic aspects and (2) advantages and disadvantages of the farming system. Results showed that farming area in UM (2.62 ha/farm), water depths of farm were 1.05 m and 1.25 m in UM and TB, respectively.  Stocking density in UM was 5.23 ind./m2, lowed than that in TB (6.02 ind /m2). Shrimp survival in UM (30%) hinger than of TB (25%) but the size of harvest shrimp (42.5 ind. /kg) and yield (340 kg/ha/crop) were lower than corresponding in TB (37.5 ind./kg, 352 kg/ha/crop. Total production cost (7.47 in UM and 8.39 VND milion/ha/crop in TB) and production costs were VND 42.7 thousand/kg in UM and 45.2 VND thousand/kg in TB. Salling price were high (142 VND thousand/kg in U) and 156 VND thousand/kg in TB therefor income obtained 43.1 VND million/ha/crop in UM and 43.9 VND million/ha/crop in TB and benefit ratio were 5.72 and 4.25 respectively. However, the rate of unprofitable households was 10.0% in UM and 13.3% in TB. Affecting factor to yield of the farming system was stocking density and those to profit were density and yield.

The study was aimed to investigate the development history of hybrid catfish farming in the Mekong Delta (MD) and the perception of farmers and fisheries managers on possible impacts of hybrids on indigenous walking catfish. The study was conducted from January to March 2015 by interviewing key informants in 13 provinces, 150 fish farmers who have cultured hybrid catfish in five provinces An Giang, Tra Vinh, Vinh Long, Can Tho, and Hau Giang, and 23 hatchery owners. The results showed that African catfish was introduced to MD provinces in 1975 – 1980. Hybrid commercial farming started in the late 1980s, and reached the developmental peaks across provinces in the period of 2002-2010. However, hybrid catfish farming gradually decreased after that. In 2014, it was practiced only in five provinces mentioned above with the total culture area of 250 ha and production of 16,840 tons. Hatcheries and nursing farms are mainly located in Can Tho, Hau Giang, and Vinh Long. Hybrids were confirmed to escape into the wild but the perception on hybrids’ impacts on native walking catfish varied among interviewees. Most officers (88%) believed in no negative effects of hybrids, whereas, local farmers thought escapees could cause feed competition, disease transmission, backcrossing, and living space competition.

The study was conducted to determine the appropriate replacement levels of commercial pellet feed with carrot (Daucus carota) for growth rate and quality of white leg shrimp (Litopenaeus vannamei) under biofloc system. The experiment was randomly set up with four treatments at different carrot replacement levels including (i) 100% commercial pellet (control), (ii) replacement of 10% amounts of the commercial pellet by carrot, (iii) 20% commercial pellet replacement, and (iv) 30% commercial pellet replacement. The initial weight of shrimp was 0.37±0.09 g and length of 3.49±0.32 cm) were cultured in the biofloc system with ratio of C:N = 15:1, at stocking density of 150 shrimp/m3 and water salinity of 15‰. After 60 days of culture, final shrimp weight ranged from 8.2 to 9.0 g and there was no significant difference among treatments. The 30% replacement commercial pellet by carrot showed better survival rate (86.7%) and higher shrimp biomass (1.1 kg/m3) as well as the lower feed cost (49.702 VND/kg) compared to other treatments. There were significant differences (p>0,05) in survival rate, shrimp biomass and feeding cost between control treatment and 30% replacement of commercial pellet by carrot treatment while there was no significant difference (p>0,05) between treatments of replacement of commercial pellet by carrot. The replacement of commercial pellet by carrot enhanced shrimp perceptible odor and flavor, especially shrimp color while proximate composition of shrimp meat were not significant difference among feeding treatments.

This study was conducted in 4 months to evaluate the effects of different vegetable ratio in the diet on growth, survival rate, production and economic efficiency of black apple snail (Pila polita) during grow-out period. There were 5 feed treatments and 3 replicates in each treatment as follow: (i) Industrial pellet-100% (CN100); (ii) Vegetable 25% + Industrial Pellet 75% (X25); (iii) Vegetable50% + Industrial Pellet 50% (X50); (iv) Vegetable 75% + Industrial Pellet 25% (X75); (v) Vegetable 100% (X100). Snails with initial weight (1.32 g), shell height (19.71 mm) and shell width (13.81 mm) were reared at the stocking density of 150 ind./m2. After 4 months, the survival rate in X100 (71.9%) was higher than in X75 (71.1%), X50 (69.9%) and significantly different (p

The study was conducted to assess potential of using green seaweed (Cladophora sp.) as a feed for tilapia (Oreochromis niloticus). Seven feeding regimes were applied with triplicate tanks, and fish was fed daily either commercial feed or fresh/dried green seaweed: (1) single commercial feed daily as a control treatment, (2 and 3) single fresh/dried green seaweed everyday and 2 alternative feeding regimes where (4 and 5) 1 day commercial feed and 1 consecutive day fresh/dried green seaweed, (6 and 7) 2 consecutive days fresh/dried green seaweed. Fish with initial weight of 3.94±0.26 g was stocked in the 250L tanks at salinity of 10 ppt with continuous aeration. After 60 days of culture, survival of tilapia was not affected by the feeding treatments, and in the range of 93.3-98.3%. Growth rates of experimental fish fed alternative 1 day commercial feed and 1 day green seaweed were not significantly different from the control group (p>0.05). Application of alternative feeding regime, pellet feed could be reduced from 29.6% to 38.6% and water quality was better than compared with the control treatment. For proximate composition of fish muscle, the highest crude lipid content in fish fed commercial feed while the moisture, crude protein and ash contents had no influenced by feeding treatments. These results indicated that fresh/dried green seaweed can be used as a feed to partially substitute commercial feed for rearing tilapia which could contribute to save feed cost.

The aim of this study is to analyze contribution of TFP to economic growth of Kien Giang province by using the Cobb-Douglas production function, based on time series data in the period of 2000-2015. The results revealed that coefficients of labor (α) and capital stock (β) from the production function analysis were 0.4359 and 0.5461, respectively. On average, in each five year peroid of 2001-2005, 2006-2010 and 2011-2015, the annual growth of TFP were 1,85%, -4,10% and 2,55%, respectively; the contributions of TFP to economic growth were 13,21%, -36,55 and 25,63%, respectively.

This study is aimed to examine the factors affecting the customers’ repurchase of line transportation in Can Tho city. Research data were collected on 312 passengers living in Can Tho city. The main methods used in this study include exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modeling (SEM). The results indicated that convenience satisfaction directly and positively affects customers’ loyalty. Convenience satisfaction has also a direct and positive effect on customers’ repurchase. Besides, the relationship between convenience satisfaction and customers’ repurchase is positively moderated by customer loyalty. Price, habit and loyalty have a positive and direct impact on customers’ repurchase of line transportation. In particular, price and habit are the most influent factors on the customers’ repurchase of line transportation. Moreover, the results showed that the relationship between service satisfaction and customers’ repurchase is positively moderated by customer loyalty. Based on these results, some policy recommendations were proposed for transport companies in Can Tho to increase the customers’ repurchase of line transportation.

This paper is to compare rice farming efficency of farmers taking part in CNDRD program and those not joining the program in Vinh Hung district, Long An province. The result showed that farmers in the program are more financially efficient than those are in the program, which is robust to regression analysis. Moreover, fertilizer and chemical costs, techincal training, level of education, farming area and experience are found to be influencing the farmers’ profit. The conclusion is that the program improves the farmers’s profit and hence should be multiplied.

The study was based on the method of Data Envelopment Analysis (DEA) to estimate the performance of 21 commercial banks in Thai Nguyen province in the period of 2011-2015. The results revealed that commercial banks’ uses of inputs are relatively efficienctl with the average technical efficiency of 94%. Malmquist index (MI) was also used to analyze the change of commercial banks’ performance over time. The study showed that technological change is the main reason of MI changes. Tobit model was then applied to estimate the impact of different factors on the performance of commercial banks in Thai Nguyen province. It was found that the four factors affecting technical efficiency of commercial banks include: return on assets, nonperforming loan, total assets and the number of enterprises operating in the province.

The objective of this research is to determine the ability to apply excise taxes on the non-alcoholic beverage products in Vietnam. The study used the quantitative methods with the analytical framework of tax economics that was proposed by Stiglitz (1986). The research findings showed that beverage items are strong elasticity of demand on price, and is not a luxury item. There are two characteristics of three characteristics of an effective tax policy that will not be achieve if the excise taxes will be applied on non-alcoholic beverage products by the Government. They are (i) the economy characteristic and (ii) the justice characteristic. Morover, the simplicity characteristic of the effective tax policy will be difficult to achieve when the the tariff rates will be used for each type of different beverage by the Government. In conclusion, this study proposes that the excise tax should not be applied on non-alcoholic beverage product at the present time by the Government.

This study is aimed to understand rice farmers’ perception on climate change and to determine the role of information in structuring risk perception on climate change, especially salinity intrusion in Soc Trang province – one of the coastal regions in the Mekong Delta of Vietnam facing to climate vulnerability and sea level rise. Data collection is based on the cross-section data of 125 households in the surveyed area of Long Phu and Tran De district in Soc Trang province in the 2014 – 2015 rice crops. The study indicated that rice farmers in study site have become increasingly conscious of local climate change, more specifically change in temperature, rainfall and salinity intrusion with the proportion of 72.8%, 81.6% and 54.4% of the total surveyed farmers, respectively. Using the binary logistic model analysis, the study indicated that the key factors significantly influencing perception include farmers’ socio-economic characteristics such as the level of education, experience and agro-ecological settings such as access to water resource. In addition, the sources of information including mass media, agriculture extension services and social networks also play a crucial role in enhancing rice farmers’ perception of climate variability in terms of temperature, rainfall and salinity intrusion as well as its impacts on local rice production.

Corporate social responsibility (CSR) is one of the most prominent concepts in the literature. Theoretical and empirical research largely addressed this issue since 1950s. Considering the increasing importance of CSR, it is required for scholars and managers to pay attention to different aspects of CSR. The main purpose of this review is to proffer a precise understanding of what has already been investigates and the findings regarding the issues of CSR (135 articles). It is to discuss possible data sources, conceptual frameworks of CSR, evaluates findings, reliable measures of CSR to stakeholders, and then to propose directions for future studies. The literature review revealed many theories used in CSR reasearches but Carroll's theory and stakeholder theory were the most in use. In Vietnam, CSR was discussed aiming to improve regulatory frameworksin general; while foreign studies analyzed each aspect of customer, employee, and branding to build suitable business strategies. Future research should examine the role of mediating variables. It was proposed that SMEs, customer aspects and mediators should be further studied to maximine the benefits of CSR activities.

The study was conducted to compare the financial performance between two forms as traditional and integrated farming system so called ecological livestock production in Phong Dien district, Can Tho city. Research data from interviews of 223 farmers who have been engaging in animal husbandry in the district were analyzed through descriptive statistics and comparative financial ratios. Research results showed that the total economic cost of ecological livestock production was higher benefits than traditional form. In particular, the financial ratios of reflecting the profitability of households in ecological livestock production was virtually higher than traditional sector.

The study is aimed to investigate the drivers of intention to revisit of international and national tourists coming to Cantho city as a tour destination. The study’s purpose is to explore the influence of factors driving the tourists’ intention to revisit. As in quantitative studies, the methods of confirmation factors analysis (CFA), structural equation model (SEM) and bootstrapping method by roster were applied in figuring out the drivers of the revisit intention of tourists. The outcomes showed that tourists’ attitude has a significant positive influence on their intention whereas crimes relating to service price and safety affect negatively the tourists’ attitude. In addition, some solutions for controlling such tourist crimes were proposed.

Research on decision-making process in family is not a new topic in sociology. The sociologists often tended to investigate "the decision-making process on families’problems" (along with the division of labor according to gender) as an indicator to measure the degree of equality between husbands and wives in the families. But, as far as we’re concerned, from the anthropological approach however, this research indicator would properly reflect the essence of inequality, if the features such as: academic level of members, income, family’s circumstance and livelihood would bedeeply concerned. Results of a research in the four communes of Khanh Hung (Vinh Hung district, Long An province), Kien An (Cho Moi district, An Giang province), Vinh Trinh (Vinh Thanh district, Can Tho city) and Tan Hung Dong (Cai Nuoc district, Ca Mau province) has proved that: the key actor working on a certain activity will be the one who makes final decisions on that job.

The study is aimed at determining factors which influence farmers’ participation in community-based rice seed production activities in Long My District, Hau Giang Province. The study conducted in 2016 was focused on assessing farmer participation in rice seed production based on Likert scale of 5 levels. The factors used in the assessment includes (i) individual abilities, (ii) markets and consumers acceptance, (iii) government’s policies and support activities, (iv) individual and social benefits, and (v) social awareness. The results showed that farmer participation is affected much by social awareness, followed by individual abilities and the acceptance of markets and consumers but not the other two (individual and social benefits and government’s policies and support activities). Some solutions were suggested such as improving the farmers’ abilities through training courses on rice seed production, strengthening farmers connection in community-based rice seed production to enhance farmers participation in rice seed production.

Currently, many urban centers in Vietnam in which houses with a construction are less than the limitted standard (so-called "ultra-thin”, “ultra-small") are increasing. This does not only cause of lost urban aesthetic manner but also reduce the effectiveness of state management and law enforcement. The formation of this housing type is mainly a consequence of the process of expanding the roads in urban planning and land use planning at the local level as well as the lack of synchronization between the text consistent execution Land Law and Construction Law. The objective of this article is to offer a few solutions to limit the cases arising land plot less than limitted standard from the clearance.