This article generalizes and systematizes of the Vietnamese Communist Party, policies in general, and of the Party Committee in provinces and cities in the Mekong Delta in order to confirm and enhance the great national unity. The article also confirms several positive changes mental and material life as well as points out some problems to be solved. On the basis of that, the author suggests potential solutions for block of great national unity in the Mekong Delta

The fingerprint identification is wildly used in various fields of our society, but some fingerprint images on ID cards are noisy and corrupted. In such situation, an effectively enhancement procedure to improve the clarity of the ridge structure is necessary. The available enhancement algorithms are based on either the local orientation field filtering scheme in space domain or theGabonfiltering scheme in the frequency domain. The first one could not be correctly estimated for fingerprint images of poor quality, which greatly restricts the applicability. TheGabonfilters could obtain the reliable orientation estimate even for corrupted images. In this study, an enhancement plan using a space-frequency federated filtering scheme is discussed, which adapts the filtering methods to the input images according to a pre-defined quality factor. Only parts of the images of which quality factor do not meet the requirement are filtered by theGabonfilter. Experimental results show that the proposed method computationally efficient, with the same level of the enhancement performance.

Teaching mathematical concepts contains many contents such as: teach typical characteristics, properties, exercises,? Among them, teaching the meaning of concepts also plays an important role. The meaning of concepts is associated with the history of concepts and enables us to know deeply the nature of concepts. There are many teaching styles or ways to teach the meaning of concepts such as: design exercises, create situations, hold an experimental reseach,? An attractive problem, we were interested in, was the faculty of applying the meaning of concepts in solving the practical situations after the pupils had studied them in their class. This article brings us an educational game to see the ability of primary pupils in applying the meaning of natural numbers to deal with the real problems.

This paper addresses to the mapping between the coordinates captured by a GPS receiver and the coordinates on a digital map. The problem is that digital map with a high precision often very expensive and not available for daily life applications such as tourist guide, route navigate instruction, bus map and bus stop announcement. These kinds of applications often use maps digitalized from paper maps with a low level of the precision. Therefore, the difference is found when using such a map in connecting with a high precision as GPS receiver. This paper introduces Helmert adjustment method that can be used to mapping GPS coordinates to the coordinates on a digital map. This method is successfully implemented for tourist guide system and for bus stop announcement system in Cantho city. The experimentation investigation in these two systems illustrates that the proposed adjustment method can be used and it is quite appropriated to daily life applications with a small budget of investment.

Total 30 leaf samples of Kalanchoe pinnata and 30 leaf samples of Ludwigia hyssopifolia cultivated in different places in the MekongDelta provinces were collected. Their leaves were used for protein electrophoresis employing the SDS-PAGE method and testing the antibacterial susceptibilities expressed as minimum inhibitory concentrations (MIC) of  eight selected bacteria strains Staphylococcus aureus, Streptococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Salmonella spp., Aeromonas hydrophila, Edwardsiella ictaluri and Edwardsiella tarda. There were 15 different protein bands of Ludwigia hyssopifolia leaves were discovered; the protein bands were 9%, polymorphic while the polymorphic individuals were 10%, and the phenotypic diversity value (Ho) = 3.04, the genetic diversity value HEP =  0.61 and sum of the effective number alleles SENA= 1.55. Kalanchoe pinnata had no genetic diversity and had strong bacterial activity against tested bacteria (especially against Edwardsiella ictaluri, MIC= 512 àg/ml), Ludwigia hyssopifolia including 20 lines, most of them could act against Edwardsiella tarda, Edwardsiella ictaluri, Aeromonas hydrophila and Staphylococcus aureus (MIC=128-512 àg/ml).

The study aims at giving a description of current situation of income, income structure and income diversification of poultry-raising households in theMekongRiverDelta. In addition, it attempts to determine factors associated with household income. Findings from the analysis show that agricultural production is the main source of household income, accounting for 95% of total income. Income diversification is being implemented. However, the implementation is almost unprojected and hence its benefits are in question. Determinants of household income are found to be land area, access to credit, full poultry vaccination, income?s poultry raising and income?s husbandry raising and from off-farm activities. These findings give lights to some policy implications. In order to improve household income, farmers are recommended to use land appropriately, be willing to borrow loans, get poultry fully vaccinated, involve more in poultry raising and off-farm activities.

We consider multivalued symmetric equilibrium problems of both weak and strong types in metric spaces. Sufficient conditions for the local uniqueness and Lipschitz continuity of the solutions are established. Our results are new or include special cases recent existing results.

In Vietnamese modern poetry, there are a large number of poems which are written about President Ho Chi Minh. From many different ways of feelings, poets express people?s noble and inviolable sentiment to Uncle Ho honestly, deeply and lively. He is the greatest person and the symbol of belief and beautiful lifestyle in people?s spiritual life. His nobility shines not only in the life but also in the poetry.

Turtle, a group of special body form animals, is the subject of hunting and at urgently risk of extinction. The sampling collections of fr eshwater turtles in the Mekong delta were carried out three times enable to collect, identify and classify six species belong to three families (Emydidae, Trionychidae, and Testudin idae) of the Turtle Order (Testudinata).

This research is conducted to identify factors that influence household satisfaction with training methods on technological application on rice cultivation in Dong Thap province. Research data have been collected from direct interviews with 375 households cultivating rice. Factors analysis shows that household satisfaction is influences by: (1) Comparative economic benefits of the performance model are higher than those of farmers? production models; (2) accurate and trustful information for the trainees, (3) friendly and open trainers and (4) well-organized performance models. Among which, well-organized performance models are the most important factor that influence household satisfaction.

The giant freshwater prawn (Macrobrachium rosenbergii) is an important cultured species in freshwater areas. This study aimed to assess the effects of 30, 60, and 100% oxygen dissolved (DO) saturation on the feed utilization and growth of this species. The results showed that the time course of feed consumption and gastric digestion of this prawn at 30% DO saturation were longer than those at 60 and 100% DO saturation (7, 6, and 5 hours, respectively). The molting frequency of prawns reared at 30% DO saturation was 4 times, while there were 5 times at 60 and 100% oxygen saturation. The average body weight of the prawns at 90 days of rearing at the 30% oxygen saturation (13.7 g) was significant lower (p

The Mekong Delta is the largest sugarcan production region inVietnamwith approximately one-fourth of area and one-thirth of production. This study would like to analyze the effect of sugarcan price and other suitable factors to the farmer?s production decision using the Nerlovian partial adjustment supply response function of sugarcan in theMekongDelta. The estimates of the supply response model showed that information used for expected price formation was not quickly responsed in making decision of sugarcan production. Especially, in short run, the expected price was not an important factor for production decision making. Meanwhile, in the long run, the expected price has significant effect in directing sugarcan farmers to formulate the supply response decision. Moreover, world price of sugarcan was also an important factor in the supply response function of the sugarcan farmers in theMekongDelta.

Medicinal vegetables in Phu Cuong, Phu Tho, and Phu Ninh communes in Tam Nong district of Dong Thap province are quite extensive. The initial statitical data is about 202 species belonging to 148 genera and 69 families in 2 divisions (Polypodiophyta and Magnoliophyta). The taxons belong to Magnoliophyta are the most diversified with 199 species, 145 genera and 66 families. Polypodiophyta has 3 species, 3 genera, 3 families. Some families have the most member of species such as: Fabaceae, Cucurbitaceae, Asteracea, Apiaceae, Solanaceae.

The paper aims to evaluate the role of capital, labor, and productivity in the economic growth of Cantho city based on the total factor productivity approach. Especially, it would like to analyze their contributions during the period of before-and-after of former Cantho province. Using the accounting method in estimating the share of labor and capital in the total income, results showed that capital was the main factor while labor and total factor productivity played a very limited role in economic growth of former Cantho city. However, after the period of province spliting the total factor productivity contributed increasingly in the economic growth of Cantho city.

This study aimed at examination of flowering characteristics and fruit development process of Hong mandarin. The study was conducted on 10 trees of Hong mandarin, at the age of 8 year old, grown in Lai Vung district, Dong Thap province from March 2009 to December 2010. Fruit development was calculated by Robertson?s equation (1908; cited by Reed, 1920). Results showed that flowering ratio reached to 90%, whereas only 50% for the fruit set one. Young fruit drop primarily occurred at 30 days after fruit set reflected by 33.9% of drop rate. Fruit of Hong mandarin developed in a simple curve, in which a slow development appeared at the first 60 days, became fast development at 60 - 180 days, subsequently shifted to mature stage, and finally ripped after 273 days. Fruit development was initiated by the increase in its height, diameter and then weight, that reflected by maximum growth rate at 86, 101, and 160 days after fruit set, respectively. Vitamin C and TA contents reduced when fruit shifted to mature stage. Brix of fruit juice increased gradually after fruit set, and finally became stable (10.8%) at 15 days prior to harvest. Juice content in fruit sacs reached maximum (93.5%) at 225 days after fruit set and decreased gradually until harvest.

Coconut fibrous husk, a byproduct of agriculture, is used very effectively to produce a mid-product called coconut fiber silk. Coconut fiber silk is used to make final products such as string, net, carpet, etc... This product line is developing very strongly in MekongDelta, particularly in Ben Tre and Tra Vinh provinces. This industry not only helps consume the coconut fibrous husk byproduct  but also creates new jobs for jobless people in rural areas, especially for the poors and women. However, at this time, this industry is not stable because of lacking of the links among chain actors that lead to a fluctuated market price. Therefore, to foster this product line and improve the poors? income, a study of coconut fiber silk value chain needs to be conducted. The chain actors include coconut fiber silk export companies, coconut brokers, coconut fiber silk enterprises, workers who are making final products from coconut fiber silk. There is a link among actors called vertical links. Besides, the horizontal links must be also studied, such as supporting organizations, coconut associations. The purpose of this study is to provide useful information to local authorities to support the process of developing policy and strategic plan for coconut fiber silk products. The final goal is to create more jobs and increase income for grassroot in rural areas.

Central limit theorem plays an important role in probability theory and applied statistic. However, the findings of this theorem mainly focus on the sequences of independent random variables. Its results haven?t been found so much in the case of the sequences of dependent radom variables. Although, the independence of the sequences of random variables is not easy to meet and satisfy. So we need to find conditions to limit the range of the sequences of dependent radom variables to get the results of the central limit theorem. In this paper, we find out a range of conditions for the sequences of dependent radom variables and prove that these conditions stronger than the results were outlined in the paper of Dvoretzky but this still satisfies the central limit theorem.

Cao Tat Thi Chung writing by Man Giac?s monk is usually considered as an independent poem. However, this poem is a compositional part of Ngu Luc works. Therefore, people have perceived this poem in different ways. From Han Nom?s text ? ancient Vietnamese, This articale introduces the total content of Ngu luc works, which include the poem in order to give a comprehension that closer the author?s one.

The strong point of the sliding mode control (SMC) is the stability and robustness even  under effecting of disturbances and variations of controlled object. However, designing a SMC requires an mathematic model of the object which may not always be obtained, in practically. In order to cope with this problem, this article proposes using an artificial neural network to estimate the object?s status for calculating the sliding control signal instead of using mathematic model. The proposed SMC algorithm is applied to control a magnetic levitation system. Simulation results indicate that the controller is stability and robustness in several conditions of noise effecting and object?s parameter changing; the system response has a rising time about 0.17±0.02s, without overshoot, fluctuation and steady-state error.

Total 30 leaf samples of Piper betle and 30 leaf samples of Piper lolot cultivated in different places in the MekongDelta provinces were collected. Their leaves were used for protein electrophoresis employing the SDS-PAGE method and testing the antibacterial susceptibilities expressed as minimum inhibitory concentrations (MIC) of eight selected bacteria strains Staphylococcus aureus, Streptococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Salmonella spp., Aeromonas hydrophila, Edwardsiella ictaluri and Edwardsiella tarda. There were 13 different protein bands of these 30 Piper betle leaves and 15 different protein bands of Piper lolot leaves were discovered. Their protein bands were 3.33% and 63% polymorphic while the polymorphic individuals were 7.69 and 53%, and the phenotypic diversity value (Ho) = 3.84 và 1.3, the genetic diversity value HEP = 0.79 and 0.18 and sum of the effective number alleles SENA= 3.76 and 0.21. Piper betle had strong bacterial activity against tested bacteria (divided into 7 groups), especially against Edwardsiella tarda, Staphylococcus aureus, Pseudomonas aeruginosa, Edwardsiella ictaluri và Aeromonas hydrophila (MIC=128-512 àg/ml). Piper lolot (divided into 3 groups) had weaker bacterial activity against tested bacteria, except against Edwardsiella ictaluri with MIC=256 àg/ml.

Over forty years have passed, althouth there are many different opinions but Tet Mau Than 1968 event was forever engraved in national history as the immortal song about aheroic nation. Tet Mau Than 1968 was made landmark, forcing the U.S. to scale war, ending the destructive war to the North, gradual withdrawal of U.S. troops returning home, to complete failure of ?local wars?. From there, create favorable conditions for us in continuing  to win the U.S. in the next stage.

In recent years, solving the invert problems of magnetic potential field was done by Poisson - Hardy wavelet transforms as well as the filtering data technique (LWF,LINE-WEIGHT FUNCTION)) for an estimation of the tilted angle, the depths to the top and to the bottom of the simple magnetic homogeneous anomaly sources being the dike form in other to determine the sizes of the magnetic anomaly-sources. Results from the analysis using proposed method on the theoretical models can be applied for the calculations of the source properties as tilted angle and the dimensions of the magnetic anomalies on Tra Vinh ? Dong Thap profiles measuring in the Mekong delta.

The view about human in literature transformed through different developing periods of the history of literature. Being influenced by both Sinology and Western culture, Ho Bieu Chanh showed that he did not absolutely deny Confucius?s views. He still observed and reflected life and human in his works through the insight of a Confucian scholar. Ho Bieu Chanh was not a conservative writer but a smart one. Assimilating Western education and mixing it into the stream of modification, Ho Bieu Chanh had a new view about human. With a multiform and proficient insight, Ho Bieu Chanh realized that people in the transitional period who were reaching modernizaton, could not unambitiuos ones any longer. New circumstances led to the acceptance that people lived for themselves. Who knew to combine privacy and the responsibility to community would gain happiness. This view itself has made Ho Bieu Chanh?s novels have a specialty as well as the ability to last long in readers? memories.

This research aimed at studying the preparation procedure of crude papain powder from fresh papaya latex. Suitable conditions for drying of the fresh papaya latex were spray-drying at 65oC within 10 hours, and the dried papaya latex obtained could be preserved for a period of 9 months at 5oC. Water was the best solvent for the extraction of enzyme papain from the dried latex with a ratio of 20ml water per gram dried latex. Different solutions such as 5% Sorbitol, 5% sucrose, 3% manitol, 3% or 4% maltodextrin could be used for the protection of papain activity during freezed-drying. In spray-drying the papain enzyme activity remained unchanged at the temperature of 100oC in the presence of 4% maltodextrin. The obtained crude papain enzyme powder could be preserved for a period of 6 months at 5oC.

This research is conducted to identify factors that influence household satisfaction with training methods on technological application on rice cultivation in Dong Thap province. Research data have been collected from direct interviews with 375 households cultivating rice. Factors analysis shows that household satisfaction is influences by: (1) Comparative economic benefits of the performance model are higher than those of farmers? production models; (2) accurate and trustful information for the trainees, (3) friendly and open trainers and (4) well-organized performance models. Among which, well-organized performance models are the most important factor that influence household satisfaction.

Crude ethanolic extracts of cork-root bark, fig-haulm bark, and areca seed were used to determine antioxidation activity by Ferric Thiocyanate Method (FTC), and ascorbic acid was used as a standard agent. The results show that the antioxidation activity of ascorbic acid is (88.09 ± 0.27) %, cork-root bark crude ethanolic extract is (41.99 ± 0.07) %, fig-haulm bark crude ethanolic extract is (36.65 ± 0.07) %, and areca seed crude ethanolic extract is (79.16 ± 0.13) %. Comparing the obtained result with the antioxidation activity of vitamin C and standard ascorbic acid reveals the deviation of +8.37 %. Antioxidation activity results using DPPH (?,?-diphenyl-?-picrylhydrazyl) method show that the antioxidation activity percent of ascorbic acid, cork-root, fig-haulm, and areca seed crude ethanolic extracts in DPPH system by different SC50 values (?g/mL) are (91.0 ± 0.3) % by 9.37 (?g/mL), (77.9 ± 0.3) % by  32.28 (?g/mL), (82.9 ± 0.3) % by 27.3 (?g/mL), and (89.9 ± 0.2) % by 25.83 (?g/mL), respectively. Compared to the DPPH method, the results from FTC method indicate that the deviation of ascorbic acid is +2.06 %, cork-root bark is +25.09 %, fig-haulm bark is +32.70 %, and areca seed is +7.59 %.

The main objective of this study is to research on real state of affairs and propose resolutions to prevent violations driving regulations in some provinces ofMekongRiverDelta. Contents mentioned here are: Researching current regulations on driving; Real state of affairs of violation driving regulations in some provinces ofMekongRiverDelta; Causes and Resolutions to prevent violations driving regulations in some provinces ofMekongRiverDelta. Studied results is to propose the following resolutions: Propagandize, educate law of driving in effective; Strengthen management on road traffic; Develop road traffic substructure in Mekong River Delta to satisfy the need of traffic and economic development; Develop bus system to satisfy the need of transportation by public services; Prevent drinking while driving; Advance effects of coercion on road traffic; Improve criminal law on driving crimes (Art 202 of the Code) and treat driving crimes more strictly.

Hon Chong - Ha Tien zone, Kien Giang province with a lot of landscapes such as plains, hills, mountains, coasts and islands is favorite site for studying biodiversity. This study focuses on sampling, identification and description of vegetal and animal species. 84 genus of 6 algal phyla, 619 species of Angiospermatophyta and 143 amimal species of 3 phyla Coelenterata, Mollusca and Arthropoda were identified and described. The results are necessary for teaching and researching biodiversity.

This study was conducted based on direct interview on 100 people who are using safe vegetable. The paper aims to analyze the factors affecting to the customer?s choice of safe vegetable products. The results showed that safe vegetable was distributed mainly through supper-market system. The majority of customers were those who have relatively high income. There were three factors affecting significantly to quantity of safe vegetable, namely, distance to market, customers? belief, and the availability of the products. In order to develop a safe vegetable market in Can Tho city, some following measurements were recommended: developing more marketplaces for safe vegetable, diversifying distribution system to help customers more convenient in buying the safe vegetable, growers and distributors should jointly create label or trademark for the safe vegetable, and forming cooperatives for safe vegetable products.

Mangrove clam Geloina coaxans were collected from the mangroves forest at Ngoc Hien district, Ca Mau province to observe the reproductive cycle, condition broodstock and induce spawning. The results showed that Geloina coaxans can spawn all year round with two spawing peaks in May and in November. Broodstock conditioning of mangrove clam lasted 20 days at salinity of 25? with different bottom types and the densities 25-30 individual/m2. Environmental factors were not significantly different among treatments and survival rate of mangrove clam was 100% in all types of conditioning. The gonadal index increased from 2.8 to 3.2 and ratio of spawned females  was 13%. Parallel with study on broodstock conditioning, mangrove clam was stimulated to spawn with four different methods. The results showed that the method of decreasing temperature and then using flow through water system was suitable for spawning and females spawning rate reached 22%. The number of eggs per a gam of fresh tissue weight  were 49050±52044 and effective time was about 4 hours. The results of this study could contribute initital information on the process of production of mangrove clam inVietnam.

Renewing teaching methods subjects in politics at the university in our country today is an urgent problem. The goal of innovation is to overcome the teaching situation by accepting a one-way: reading teacher, writting trainers, talking teacher, copy students that our social is criticising fiercely. In many documents of the Party and our State as well as the direction of the Ministry of Education and Training always emphasizes the needs of the innovation. There are two general orientation as the basis for innovation is from learner-centered and use of active teaching methods. Since then, the author believe that there are four active teaching methods can be appllied to teaching subjects in politics is: rising up problem, teaching group cooperation, organizing student presentations, presentation with use of electronic lesson plans.

In this article, we study a mathematical model of malaria desease, where humans and mosquitoes interact and infect each other. The model is presented by a system of differential equations belonging to parameters. We define the factor deciding the spread of malaria. This factor is called basic reproduction number and denoted by . If  then the desease goes extinct, whereas if  then the desease remains. This phenomenon is explained by transcritical bifurcation.

Choosing a suitable work place after graduation has long become the most concern of undergraduates. The central goal of the study is to seek potential determinants of choosing a work place for 200 final-year students from the Can Tho University, more specific whether they would find a job in Can Tho city or in their home town. Basing on the tool of Factor Analysis, the result shows that nearly 60% of the total respondents tend to find a job in Can Tho city after the graduation. Several reasons for their decision are closely related with better opportunities of education and career development, and high income as well. Additionally, demographic charateristice of the respondents have likely important contributions to their decision of finding a work place. 

The study was conducted in order to determine some factors effecting on yield, ?fruitless phenomenon?, and cultivation practices effective in improving yield of Ta Xanh coconut cultivar grown in Ben Tre province. The survey of cultivation methods was conducted with totally 60 households whose orchard larger than 1,000 square meters at three districts of Ben Tre province i.e.Chau Thanh,MoCay and Giong Trom. In 2008 Experiment of application of integrated cultivation practices was implemented on 20 trees of Ta Xanh coconut at the age of 15 years old, grown in Mo Cay district, Ben Tre province. The result showed that ?fruitless phenomenon? occurs in rainy season, from July to September (lunar calendar). Intercropping model got higher yield and economic effects compared to coconut mono-cultivation (1.6 and 1.2 fold, respectively). Application of integrated cultivation practices caused increasing number of female flower per inflorescence, set rate, number of nut per tree and economical benefits (1.5-fold).