bluuebunny/crossref_metadata_2025 huggingface dataset:
„Als das Wünschen noch geholfen hat…“
Authors: Eick Volker , Beck Martin , Wiegrefe Carsten
Published: September 2018

The actual, so-called German „antiterrorism” laws are not conceptualized to fight against „terrorism”, and they won't help to prevent against „terrorism”. More over, their rassist focus is mainly against foreigners, and against constituional and human rights. Not only in a German but as well in European context, „terrorism” will become a synonym for political protest and resistance. The paper argues that this development follows the logic of a neoliberal economic globalization as a political one.
Apocalypse Now?
Authors: Bünger Iris
Published: September 2018

The role played by the media in the construction of societal reality is both – determined by discourse and determines discourse. The media can be regarded as a kind of „magnifying glass” that collects information and focuses it for the masses. The reporting of the BILD-Zeitung, a leading figure in mass print media is analysed after the attacks on US-targets on September 11, 2001. The discursive strategy to define terror as war and to prepare the military counter attacks entailing „unlimited German Solidarity” is demonstrated by illumination of the argumentation strategies and collective symbolism.
Die ökonomische Entwicklung in den USA und die Anschläge vom 11. September
Authors: Evans Trevor
Published: September 2018

The US economy was poised on the edge of a recession even before 11 September. Following the attacks, the immediate financial shocks were contained. But, despite plans by the Bush government to provide a large boost to the economy, because of massive overinvestment and overborrowing, a serious recession is on the cards in the US. With a recession also underway in Japan, and slower growth in Europe, this looks set to impart a strong deflationary impulse to the rest of the world economy.
Das Kaninchen vor der Schlange
Authors: Herr Hansjörg
Published: September 2018

The terrorattack hit the western world in a situation of a sharp cyclical downturn in the USA, Europe and Japan. Mainly because of increased uncertainty the downturn will be intensified by the attack. Immediately after the attack US monetary and fiscal policy became even more expansive. In Europe monetary policy reacted very reluctantly. Active fiscal policy in the Euro-area is nearly not existing as the Stability and Growth Pact as well as neo-liberal ideology prevents fiscal measures. The inactive economic policy in the Euro-area is not only dangerous for Europe but also a depressing factor for the world economy.
KF supported on montmorillonite K10 catalyzed one-pot synthesis of 4H-pyran derivatives under ultrasound irradiation and solvent-free condition
Authors: Pham Dung Duc , Chau Huyen Ngoc , Le Thach Ngoc
Published: September 2018

KF supported on montmorillonite K10 catalyzed three-component cyclocondensation of aromatic aldehyde, cyclohexan-1,3-dione and malononitrile under ultrasound irradiation and solvent-free condition to give the corresponding 4H-pyrans in high yields. This method provides several advantages such as short time, mild condition and the catalyst can be recycled easily.
Synthesis of the reversed stationary phase for solid phase extraction using trimethoxyoctadecyl silane
Authors: Nguyen Giang Tien , Nguyen Du Huy , Nguyen Mai Anh
Published: September 2018

Octadecyl grafting silica was synthesized using trimethoxyoctadecyl silane. Reaction conditions were optimized so that the carbon percentage of resulted material was similar to that of commercial products. Temperature and catalyst played very important roles in the reaction. The material was also undergone the end-capping process to reduce unreacted silanol groups. Final product owned 14.1 % of carbon content and 75 % of the unreacted silanols. Retention behavior of product was tested and compared to the same noes available on the market. Results showed that both resulted material and commercial had the same retention properties.
One new compound from Borreria alata (Aubl.) DC (Rubiaceae) in Vietnam
Authors: To Loan Cam , Pham Tuyen Nguyen Kim , Nguyen Phung Kim Phi
Published: September 2018

Borreria is a genus of Rubiaceae widespread in tropical and subtropical America, Africa, Asia, and Europe. Studies have confirmed that extracts as well as some isolated compounds of species of Borreria genus possess diverse biological activities, including anti-inflammatory, antitumor, antimicrobial, antioxidant, anti-ulcer… In this paper, we present the chemical structures of four compounds isolated from Borreria alata, collected at Di Linh district, Lam Dong province, Vietnam. 3β, 6β, 23-trihydroxyurs- 12-en-28-oic acid (1), sodium deacetylasperulosidate (2), 7β-hydroxy-11-methylforsythide (3) and sodium loganate (4). Among them, three compounds (1), (2), (3) were known for the first time in Borreria genus to our best knowledge and (4) is a new compound. The chemical structures of these compounds wereelucidated by analysis of 1D and 2D NMR and HR-MS spectroscopic data, as well as by comparison with those reported in the literature.
Generation and selective isolation of IgG antibodies against Jurkat T-cell membrane proteins
Authors: Trinh Thuong Minh , Huynh Mai Thi Xuan , Tran Hieu Van
Published: September 2018

Currently, Graft-versus-Host Disease (GvHD) has been the major barrier to the application of allogeneic bone marrow transplantation for hematopoietic disorders treatment, especially leukemia. GvHD is caused by donor mature T cells’ attack on recipient’s tissues and organs. Recently, T cell depletion using immunomagnetic nanoparticles is one of the most effective methods to prevent GvHD. In this present study, polyclonal antibodies against Jurkat T cell membrane were generated as a component of immunomagnetic particle. Firstly, Jurkat T cell membrane was fractionated by cloud point extraction using Triton X-114. Subsequently, the fractionated membrane was used to subcutaneously immunize rabbits for polyclonal antibodies production with a dose of 50 μg for priming and 25 μg for the next four boostings. Rabbit serum was collected and partially precipitated in 50 percent of saturated ammonium sulfate solution. Next, precipitated polyclonal antibodies were purified by using protein-A affinity chromatography column and the purity was determimed by SDS-PAGE. Afterwards, the purified antibodies were used in immune-fluorescent stainings and the recognition to Jurkat T cells was evaluated via fluorescent microscopic imaging. Finally, the purified antibodies were negatively selected by incubating with TF-1 cell, a hematopoietic stem cell, to eliminate cross-reacting antibodies. The immunocytofluorescent staining results showed that the purified and selected polyclonal antibodies weakly cross-reacted with TF-1 cells and strongly bound to Jurkat T cell
In vitro transfer of carbapenem resistant genes from Klebsiella pneumoniae to Escherichia coli J53
Authors: Tran Phuong Nhat , Tran Thuoc Linh , Pham Van Hung
Published: September 2018

Nocosomial pathogen Klebsiella pneumoniae is a gram - negative bacterium that carries multiple antimicrobial resistant genes. Conjugative method was used for investigating of gene transfer from clinical carbapenem-resistant K. pneumoniae isolates to a recipient E. coli J53 in vitro. Multiplex PCR & Real-time PCR was used for detection of transferable genes among these strains. Transconjugants showed resistance to multiple antibiotics due to the presence of ESBLs & AmpC -lactamase as well as carbapenemase encoding genes. This is the great concern in Vietnam because resistant E. coli may become part of the normal gut flora and thereby a notable source of infections among sick and healthy persons in healthcare settings and in the community.
Antimicrobial resistance among Campylobacter spp. strains isolated from faecal samples of pigs chickens and ducks at Dong Thap province
Authors: Cao Thuy Thu , Nguyen Hoang Van Minh , Tran Hien Tinh , Campbell James Ian , Baker Stephen , Phan Trang Thi Phuong
Published: September 2018

This study was designed to identify the genetic basis that results in the development of antibiotic resistance in Campylobacter spp. We carried out a molecular examination of 75 strains looking for resistance factors. These strains were isolated from faecal samples of pigs, chickens and ducks at Dong Thap province. There were 89.3 % strains which showed mutations on DNA gyrase-gyrA gene at the position 86 (C257T and T227G). There were also a further 32 % strains that showed mutations on gene cmeR encoding the efflux CmeABC pump system. This study has also shown that 29.3 % of Campylobacter spp. have mutations in fluoroquinolone (FQ) resistance on both genes gyrA and cmeR. In comparison with Campylobacter jejuni with the mutation C257T (Thr-86-Ile), Campylobacter coli has another mutation at T227G (Thr-86-Met). This mutation, encoding FQ resistance, is common in both swine and poultry but has not yet been identified in Viet Nam. As well as FQ resistance, resistance to erythromycine (Ery) has been detected in C. coli, in 10 strains erythromycin resistance, with a mutation at position A2075G. There was 1 strain which carried two mutations A2075G and A2074C at 23S-rRNA gene, and 2 mutant strains with a double mutation at A2075G and A2076C. In summary, there were three strains of C. coli with double mutations encoding Ery resistance at Dong Thap and this resistance characteristic has not been identified eslewhere.
Molecular phylogenetic analysis to support the identification of samples DL0038A & DL0038B belonging to Cordyceps genus
Authors: Vu Luyen Tien , Dinh Hiep Minh , Truong Nguyen Binh , Lao Thuan Duc , Trinh Hanh Van , Le Thuy Huyen Ai
Published: September 2018

In our previous publication, we have tentatively concluded that our fungal specimen DL0038A and DL0038B are Cordyceps takaomontana. In order to further support the identification, we continued to analyse the nrSSU (nuclear ribosomal small subunit) and rpb1 (largest subunit of RNA polymerase II) genes, as well as combined analysis the nrLSU (largest subunit of RNA polymerase II) together with nrSSU and rpb2 genes on these specimens in order to support the morphological identification of those fungi. The results show that we successfully amplified all genes. Sequencing method was then adopted and proofread before molecular phylogenetic analysis was applied with reference sequences obtained from the publication of Sung et al. (2007). Once again, this analysis strongly supports the DL0038A and DL0038B specimen as Cordyceps takaomontana.
Effects of the ethanolic extract of Morinda citrifolia L. roots on pancreatic histopathological changes of diabetic mice
Authors: Dai Trang Thi Xuan
Published: September 2018

Diabetes (diabetes mellitus), one of the dangerous diseases, is directly related to the activity of the pancreas. The histopathological structure of the pancreas in diabetic mice provide the basic information of the histology of pancreas from diabetic mice. The anti-diabetic potential of ethanolic extract of roots of Morinda citrifolia was evaluated. The results demonstrated that the ethanolic extract of Morinda citrifolia roots could reduce the high blood glucose in diabetic mice after 20 days of treatment. The microscopic structure of pancreatic general histology and pancreatic exocrine of the normal, diabetic mice and mice treated with the root extract were different. Pancreatic endocrine structure changed in diabetic mice induced with alloxan monohydrate comparing to normal mice. However, extract of Morinda citrifolia root could not improve pancreatic endocrine structure of diabetic mice.
Determining velocities in high frequency electromagnetic prospecting by phase shift plus interpolation migration
Authors: Nguyen Van Thi Thanh , Le Kim Hoang , Dang Trung Hoang , Nguyen Thuan Van
Published: September 2018

Phase Shift Plus Interpolation (PSPI) Migration is one of the most popular migration methods that is used not only in Seismic Data Processing but also in interpreting high frequency electromagnetic prospecting [Ground Penetrating Radar (GPR) data]. Based on the similarities between the principle of the propagation of electromagnetic wave and the mechanical wave, migration methods could be applied to interpreting GPR data as a particular step to calculate the medium’s velocity, estimate the depth, shape and size of buried objects. Noticeably, there are two kinds of velocities usually used in migration methods: root mean square (RMS) velocity, which is used in F – K, Finite Difference and Kirchhoff Migration, and interval velocity, which is used in PSPI Migration. RMS velocity is the average velocity taken into account by considering the influence of the upper layer’s instantaneous velocity; whereas the interval velocity only reflect the practical velocity of one layer. In this paper, the problem of how to apply PSPI Migration to interpret GPR data will be presented. Some results of model datum and real datum were also examined. Besides, we made a comparison of using RMS velocity and interval velocity, and then explain how these two types of velocity could be combined to receive the best result.
Determination of the electric dipole (E1) gamma ray strength function of 56Mn from the Bn level to low levels by two-step gamma cascades
Authors: Nguyen Son An
Published: September 2018

Investigation of gamma ray strength function is necessary to determine some nuclear characteristics, such as: spin, parity, electromagnetic transitions, cross section, … In this research, 55Mn target was activated on the neutron of 3rd horizontal channel of Dalat nuclear reactor. The experimental data was collected by event-event coincidence by gammagamma coincidence system. The 56Mn deexcitation afforded the collected of 49 gamma – gamma twostep cascades. This was applied on shell model to determine the spin, parity, electric dipole gamma strength function (E1) as well as comparing between the theoretical and experimental E1 transition probabilities
Mineral, petrography and petro-geochemical characteristics of diabasic dykes at the Trai Mat quarry, Da Lat City
Authors: Le Phuc Duc
Published: September 2018

The diabasic dykes exposed at the Trai Mat quarry, Da Lat city intrude the granitoids of Ankroet complex (such as middle – coarse grained biotite granite and leucogranites. As can be seen in the field the thickess of these dykes vary from 0.5m to nearly 1.5 m extended north-south-east slope angles ranging from ~50 0 to being upright (Orientation of lying 31<50 ÷ 90 o). Petographical components consist of diabaz porphyrite. The main mineral components are plagioclase, pyroxene?, quartz, carbonate, chloride. Chemical components of rocks are: SiO2: 54.34 %, K2O: 2.43 %,Na2O: 2,50 %. The content of W, Pb, U, Th, Hf, Rb, Au is higher
The cause of arsenic contamination of groundwater in Cat Tien district, Lam Dong province
Authors: Nguyen Trung Dinh
Published: September 2018

Five positions were drilled with the depth of 45 metres, in order to research the source of arsenic contamination in groundwater in Cat Tien district, Lam Dong province. In the Cat Tien district, high concentratring of arsenic are found in both of the Holocene (adQ) and Pleistocene (J2ln) aquifers. Reduction of FeOOH(As) and reduction of arsenic poverty ore types to release arsenic to solution, are main mechanisms to explain the arsenic pollutes groundwater in Cat Tien district. The high concentration of arsenic in the sediments of the Cat Tien delta and the occurrence of reducing conditions were essential conditions to explain the extreme degree and extent of arsenic pollution. Elevated arsenic pollution would be due to the biodegradation of buried peat deposits which caused the high reduction of FeOOH(As) and affored supplied high concentration of arsenic to the groundwater.
Vietnam’s flexible approach to handle the relations with world powers at the Geneva Conference in 1954
Authors: Pham Kien Hong , Ngo Diep Hong
Published: September 2018

The 1954 Geneva Conference on Indochina is an international multilateral forum. Vietnam, participating in the forum dominated by world powers, had many difficulties taking advantage of the victory on the battlefield to have the upper hand in negotiations. However, our Party properly assessed the situation so that we could flexibly handle the relations with big powers participating in the conference to bring us great victory on the diplomatic front, which left many valuable lessons to Viet Nam’s foreign affairs, especially in dealing with major powers.
Security in the East Sea: Behaviors of relevant countries
Authors: Vo Sen Van , Nguyen Trung The
Published: September 2018

In recent years, the East Sea hasn’t been just a busy shipping lane but also a theater where many powers have been showing their military capacity. In particular, China has continuously increased its actions of “Brinksmanship”, violations of UNCLOS, commitments signed between it and ASEAN, etc. which has shown that China is one of the major causes of the unrest in the East Sea area.

On the opposite side, as a result of the recent escalation of aggressive behavior on China’s part, the United States has strengthened its presence in the East Sea, which is considered the test for “rebalancing and pivoting” strategy. The strategic competition between China and the United States has increased dramatically almost to the point of a new Cold War. Japan, India, Russia, Australia, etc. which are non-claimant states, have shown their own strategies.

In the complicated geo-political situation in the East Sea, Vietnam’s foreign policy of “keeping steadfast in various situations with flexibility – (Di bat bien, ung van bien” or “Uyen chuyen trong kien dinh”) has played a significant role in maintaining stability in security of the East Sea. However, to guarantee security in the region, ASEAN quickly should unify the official ASEAN view on the East Sea issue and tighten solidarity in economic, political and military fields.
Process of normalizing the relation with China under the reform of foreign policy of The Communist Party of Vietnam (1986-1991)
Authors: Pham Vinh Phuc
Published: September 2018

At the 6th National Congress (from Dec. 5, 1986 to Dec. 18, 1986), the Communist Party of Vietnam pointed out a new policy of fundamental renovation for the whole country, among which foreign diplomacy was one issue. Particularly for China, the Communist Party of Vietnam aimed to accelerate the normalization process of Vietnam-China relationships. To successfully carry out the policy, Vietnamese Communist Party had been taking actions proposing negotiations to normalize relationships and to ease tensions between the two countries since 1986; however, China then did not want to. Until 1989, the world faced many changes. As a result, tense relationships between Vietnam and China were no longer suitable with the trends of peace and cooperation in international and regional relationships. China then continued peace talks with Vietnam, and in November 1991, the two countries set up normal relationships with each other.
Learning about Nguyen dynasty military in the 1858-1884 period
Authors: Nguyen Minh Trong
Published: September 2018

When a country faces invaders, the role of its military forces becomes extremely important as it decides the fate of the country. In the 1858-1884 period, the French invaded Vietnam for the first time. The paper aims to clarify the army Nguyen’s organizational issues, mode of recruitment and training, and combat capability. Thence, the paper will help to explain why the Nguyen army failed to defeat the invasion of the French.
The connection between the Confucian literates and the Western-educated intelligentsia in patriotic movements in Vietnam and their generation transfer in the early 20th Century
Authors: Tran Thuan , Huynh Kien Trung
Published: September 2018

At the end of the 19th century when antiFrench movements failed and saving-thecountry ideology in Vietnam reached an impasse, “tan thu” (New Books) and “tan van” (New Literature) from China and Japan were introduced to and actively adopted by patriotic literates. New ideology from these documents led to tremendous changes in the literates’ thoughts. Hitherto, they chose to follow the path of Japan in their Meiji Restoration and that of Western capitalist democracy.

Patriotic movements in the early 20th century organized and led by the literates separated themselves into two trends: violent and renovative orientations with the leadership of Phan Boi Chau and Phan Chau Trinh respectively. However, the two orientations had a commonality in their patriotic activities which made possible for the Confucian literates and the Western-educated intelligentsia to meet and cooperate.

The connection between the literates and the intelligentsia manifested itself clearly in Dong Du movement, Duy Tan movement, proactive activities of newspapers and activities of Tri Tri Societies. They all commonly attempted at solving historical needs which faced the country at that time: Independence and Development.

That the encounter between the two groups was simultaneously a transfer among the generations was a very special historical phenomenon. It manifested the inevitable transformations of history and thus obeyed objective rules. It also created prerequisites for the development of nationalist democratic movements in the early 20th century which put the proletariats onto political stage to successfully solve the historical needs in Vietnam.
Worship of Quan Thanh De Quan and Quan De temple in Hong Ngu
Authors: Do Truong Kim , Phan Hanh Thi Kieu
Published: September 2018

The worship of Quan Thanh De Quan (Quan Cong, 關公) originates from the Chinese’s spiritual and cultural needs. Quan Thanh De Quan Temple, or in short Quan De Temple – the place to worship Quan Thanh De Quan – was built on the ground of their dualistic thinking.

In the South in general and in Hong Ngu, Dong Thap in particular, on the onset of the Southern land clearance, Lord Nguyen skillfully made use of subjects of the Ming dynasty as a part of human resources to explore new lands, thus, approving their settling down and building Quan De Temple. Quan De Temple, Hong Ngu was originally constructed by the Chinese and Vietnamese residents in Tra Du (now belonging to Thi hamlet, Thuong Lac commune, Hong Ngu rural district). It was later moved Thuong Lac and in 1956 to the current location in Hong Ngu town.

Due to the amalgamation of culture, Quan De Temple, Hong Ngu is the spiritual and cultural architecture not only of the Chinese but also of all communities in the areas of Hong Ngu.
Thien Ly Buu Toa and personal stamp of the founder
Authors: Huynh Thu Ngoc
Published: September 2018

Thiên Lý Bửu Tòa is considered one branch of Caodaism, established in the late 1970s in San Jose, California, USA. The person who was mainly responsible for the foundation of the branch was Pope Bach Dieu Hoa – a Chieu Minh Tam Thanh Vo Vi Caodaist.

Originated in the USA, the sect possesses some distinctive characteristics from those of its counterparts in Vietnam. They are imbedded with personal creativity (of Pope Bach Dieu Hoa) which, to some extent, contributes to the diverseness of Caodaism.

Using written records and ethnographic data among Thien Ly Buu Toa Caodaists, the paper attempts to conceptualize the roles of personal creativity at Thien Ly Buu Toa so as to explore the individual charisma in their constituting and running religious establishments.
Building a stemmas with Paup v4.0 software the case of eight text variants of Ngon chi thi tap by Phung Khac Khoan
Authors: Phung Linh Dieu
Published: September 2018

The inconsistency of the eight variants of Ngon chi thi tap by Phung Khac Khoan, (namely VHv. 1951, VHv. 1442, VHb. 264, A. 555, A. 1364, A. 431, VHv. 2163 and R 7) and the lack of copying information do not provide us with knowledge to construct a transmission diagram of variants. This study investigates the following research question: Could we construct a stemma which represents close relations among its variants? The theoretical foundation of New-Stemmatics and the support of PAUP software help us address this question. Namely, 8 variants could be categorised into 4 groups: Group 1 including VHv. 1442, A. 555 and VHv. 2163, Group 2 including VHb. 264 and A. 431, Group 3 including A. 1364 and R 7, and Group 4 – special group having only one variant of VHv.1951. Based on this stemma and the distance among the variants we selected three variants to be used in collation of textual criticism: VHv.1951, VHv.1442 and A.1364.
Theory of dualism in study of folktales
Authors: La Gia Mai Thi
Published: September 2018

Generally, the theory of dualism of motif study is one of the most important achievements of naratology in Russian literature nowsaday. The advantage of this theory lies in the ability to distinguish divided and undivided natures of motif clearly and consistently. The theory of dualism of motif help foklorists to discover dualistic nature of motif – a unit of narrative in folklore and literature. Through that way, the theory of dualism can harmonize two definitions of A.N.Veselovsky and V.Ia.Propp.
The features of content and playwriting art in Ho Chi Minh City’s contemporary play
Authors: Luu Thuy Trung
Published: September 2018

Since the last decade of the twentieth century, Ho Chi Minh City has become one of the Vietnamese lively dramatic literature and theater centers. During the past twenty years, together with dramatic theater, Ho Chi Minh City’s dramatic literature has built up a professional playwriter force, providing audiences plays which reflect the conflicts between human’s life in the time of Vietnam’s reformation and integration. Besides, these plays have contributed experiences in acquiring and applying the world modern playwriting techniques to suit Vietnamese’s drama reception habits.

This paper generally provides content feature (focus on conflicts) and playwriting art feature (focus on plots, characteristics, dialogue language construction and the acquirement of new art techniques in Ho Chi Minh City’s contemporary literary scripts), contributing to the evaluation and summary of Ho Chi Minh City’s dramatic literature during the past.
Detection of shoreline changes: a geospatial data analysis in Vung Tau City, Southern Vietnam
Authors: Bui Vinh Trong , Ly Hoang Minh
Published: September 2018

In recent years, beach and shoreline erosion has occurred increasingly around the world. Because of climate change and human activities, many beaches and shorelines have been eroded severely in Vietnam, especially in Vung Tau City. In order to understand and explain the reasons why Vung Tau beaches have been eroded, the author applied the Geographic Information System (GIS) and Remote Sensing (RS) to analyze the movement of beach in the past and present. The results showed that Vung Tau city has witnessed a massive shoreline replacement including severe erosion and gradual accretionsince 1989. CuaLap river mouth features all-time biggest changes with more than 800 meter of retreating shoreline.
Determination of phthalate esters in children’s toys
Authors: Tran Oanh Thi Kieu , Luong Ton Trong , Tran Hoa Ngoc , Pham Trang Minh
Published: September 2018

A validated analytical method for the determination of phthalates (DBP, BBP, DEHP, DNOP, DINP and DIDP) in plastics was described and applied to 20 toys in Ho Chi Minh city, Vietnam. Phthalates in the sample were extracted in a mixture of acetone and hexane and analyzed by GC-FID. Limits of detection (LOD) and limits of quantification (LOQ) of the analysis method for DBP, BBP, DEHP và DNOP in the PVC plastic were from 0.0011% to 0.0014% and from 0.0028 to 0.0046%, respectively. Recoveries of DBP, BBP, DEHP và DNOP in PVC and PP at two spiked concentrations (0.1% and 0.01%) ranged from 86.6% to 91.7% with the relative standard deviation (%RSD) were from 2.5% to 8.7%. Wide ranges of linearity of standard curves were obtained from 0.5 mg/L to 100 mg/L for DBP, BBP, DEHP and DNOP and from 25 mg/L to 1000 mg/L for DINP and DIDP with R2 > 0.999. The studied method was a reliable, rapid, easy and cheap method and permitted to determine the restricted phthalates in plastic toys in compliance with European Regulation (No 1907/2006). The method was applied to determine phthalates in 20 toys in HoChiMinh city, Vietnam. Phthalates were found in almost soft PVC toys with high concentrations.
Dithienopyrrole-based monomers as an acceptor unit building for synthesis of donor – acceptor conjugated polymers
Authors: Nguyen Tam Huu , Nguyen Thu Anh , Nguyen Viet Quoc , Nguyen Trung Thanh , Nguyen Ha Tran
Published: September 2018

A new monomer of N-benzoyl dithieno[2,3-b:2’,3’-d]pyrrole (BDP), has been successfully prepared via copper-catalyzed amidation. Then, this monomer was brominated to form 2,6-dibromo-n-benzoyl dithieno[2,3-b:2’,3’-d]pyrrole (DiBDP) monomer. The structures of monomers were confirmed via the nuclear magnetic resonance (1HNMR) and Fourier transform infrared (FT-IR). BDP and DiBDP monomers will be used as monomers for Suzuki polycondensation reaction to synthesize the donor-acceptor (D-A) conjugated polymers.
Geometrical effect on behavior of thin-walled cylindrical tubes subjected to low velocity impact load
Authors: Ly Anh Hung , Le Quang Doan
Published: September 2018

Geometrical effect on deformation of thinwalled cylindrical tubes subjected to low velocity impact load is conducted using numerical simulation. The cylindrical tube models are made by 6060-T5 Aluminum with difference of diameter (D), thickness (h) and length (L). If ratios of D/h and L/D are changed, deformation modes are also varied as symmetric, asymmetric, mix or buckling. Two sets of trigger applied to model to activate deformation modes. Results obtained from numerical simulation agree very well with experimental results published in the international journal articles. The formula indicated relationship between the nondimension mean crushing force Pm/M0 and D/h is also proposed.
Research on kinematic structure of a redundant serial industrial robot arm
Authors: Vu Hung Minh , Trinh Trung Quang , Vo Thang Quoc
Published: September 2018

This paper proposes a new kinematic structure of a redundant serial robot arm and presents forward and inverse kinematic analysis. This is a new structure developed based on the robot IRB 2400 of ABB. The new structure consists of six revolute joints and two prismatic joints. The proposed robot arm has only seven degrees of freedom because the structure has a constraint between two revolute joints. Two prismatic joints help to expand workspaces of manipulator from small to very large. The paper describes in details about forward and inverse kinematics. Forward kinematics is derived based on DH Convention while inverse kinematics is calculated based on an objective function to minimize motions of a revolute joint and two prismatic joints. The simulation results on Matlab software indicated that the joint positions and velocities of a redundant serial robot arm matched well the trajectories in Cartesian Space.
Separation performance of poly(vinyl alcohol) based nanofiltration membranes crosslinked by malic acid for salt solutions
Authors: Tran Hai Le , Van Linh Thi My , Vuu Minh Ngoc Duy , Mai Phong Thanh
Published: September 2018

In this study, poly(vinyl alcohol) (PVA) based nanofiltration (NF) membranes were prepared by coating a thin PVA film on polysulfone ultrafiltration support substrates. The PVA film was cross-linked using malic acid in the presence of HCl as a catalyst. The impacts of crosslinker content and PVA molecular weight on physicochemical properties and separation performance of the prepared membranes were investigated. The obtained membranes were characterized using FTIR spectra, swelling degree, and sessile drop contact angles, respectively. Then, the separation performance of the NF membrane was systematically evaluated for pure water; magnesium sulfate (MgSO4) as well as sodium chloride (NaCl) solutions using a custom fabricated 4-cell crossflow desalination system. On increasing the malic acid content, the extent of crosslinking degree increased and disrupted the crystallinity of the PVA film. The salt rejection of the prepared membranes was found to increase and then decrease through the maximum point of malic acid content for 20 wt%, while the water permeability showed the opposite trend. Moreover, the results revealed that the prepared membrane with higher molecular weight exhibited lower water permeability but better salt rejection.
Static analysis of voltage stability with DFIG
Authors: Phan Binh Thi Thanh , Huynh Thao Thi Thu , Nguyen Au Ngoc
Published: September 2018

The static voltage stability analysis is carried out by V-Q sensitivity or Q-V modal analysis. These analyses are based on the Jacobian matrix of power flow calculation. This is regarded as load bus stability analysis. With DFIG of PQ mode, the wind generation bus is considered as the PQ bus. Due to the limits of converters, these PQ buses became very special and this influences on the voltage stability examining. This paper also examines the penetration level and the location of wind generation injection based on voltage stability. The reliability of the algorithm is illustrated in a study of 14 buses power network.
Synthesis of a polycaprolactone-based material with shape-memory and mendability
Authors: Phan Tri Minh , Truong Thuy Thu , Nguyen Thanh Dac
Published: September 2018

new thermoset has been prepared from a bismaleimidic terminated polycaprolactone polyester and a tris-furan compound acting as a crosslinker via the Diels-Alder reaction between the furan and maleimide functionalities. Owing to the reversibility of the Diels-Alder chemistry and the increased mobility of the crosslinked polyester chains, this material had the ability to mend scratches under mild temperature conditions. The synthesized precursors and resulting crosslinked material were characterized using 1H NMR, FT-IR, GPC, TGA and DSC methods. The scratch mendability of the material was investigated using optical microscopy.
Text summarization based on sentiment classification of comments from online Vietnamese newspaper
Authors: Nguyen Duy Ngoc , Phan Tuoi Thi
Published: September 2018

To know opinions of consumers regarding products or public about important problems in society, then the best and most effective way is to exploit information of community from Internet and social network. Today is an era of information explosion through Internet and social networking, so we are able to exploit effectively information from the huge sources. The opinion of individuals is not only objective information but also contains emotions of the author. It through Internet has big power to make a stream of public opinion that will impact on network community. This is really an enormous subjective information resource, then it will have great meaning for many areas, such as economics, politics, society and culture if we have methods and techniques to exploit it effectively. An automatic system classifying comments based on sentiment is really necessary to exploit efficiently this resource. In order to support users have more concise and appropriate information, then question of summary information should be studied and solved, especially on side of the views and sentiments of each opinion. To exploit the resource effectively to summary information, the paper will propose a text Vietnamese summary model, not only based on semantics but also based on sentiment features. We have built a base model to solve this problem. We have exploited and developted methods summarizing and sentiment analysing for our proposed model. Our system can draw Vietnamese comments from online Vietnamese newspaper, analyze the sentiments of comments, classify them and make a summary of opinions effectively.
Petrographical petrochemical characteristics of Xa Yu granitoid massif, Binh Thuan province
Authors: Le Phuc Duc , Ha Huong Thi Thu
Published: September 2018

Xa Yu granitoid is isometric shape, with the exposure of 7.5 km2 area. The petrographical component consists of medium – coarse to small grained biotite granite. The vein rocks are incusive of aplite, pegmatoid,…The main mineral components are plagioclase, potassium felspate, quartz, biotite, and little horblende. The common accessory mineral components are zircon, orthite and apatite. Chemical components of rocks are: SiO2: 65.96 –76.50, Na2O: 1.85 –3.30, K2O: 3.60 – 5.27, K2O+Na2O: 5.45 –7.18; K2O/Na2O: 1.23 – 1,95. The content of Ba, Sr is low but Rb is higher, variability Rb/Sr: 0.552 –10.526; Ba/Sr: 0.379 – 1.816, Ba/Rb: 0.055 – 3.092; K/Rb: 235.3 – 246.9, Type I-S-granite.
Friedel-Crafts acetylation of indole, 5-methoxyindole and 5-chloroindole using copper triflate under microwave irradiation
Authors: Nguyen Hai Truong , Tran Phuong Hoang
Published: September 2018

Friedel-Crafts acetylation is an important reaction in organic synthesis processes. Acetylation of indole derivatives with acetic anhydride as acylating reagent using Cu(OTf)2 as a catalyst has been investigated under microwave irradiation. Different from traditional Lewis acidic catalyst, Cu(OTf)2 was found to be an efficient catalyst for Friedel-Crafts acetylation of indoles under mild conditions. Moreover, Cu(OTf)2 was safe-to-handle, recovered and reused several times without significant loss of catalytic activity.
Aspectos pedagógicos y filosóficos en la alfabetización con software libre
Authors: Madé-Zabala Manuel Jesús
Published: September 2018

Este trabajo se enfoca en algunos aspectos pedagógicos y filosóficos a considerar en la alfabetización con software libre, analizando la alfabetización tecnológica digital, que, en efecto, depende de la implementación o integración de algún tipo de software. El mismo, se aborda desde la pedagogía, la sostenibilidad y la colaboración en el software libre para la construcción de valores en los alfabetizados y la interrelación del ecosistema tecnológico educativo. A la vez, hace una aproximación filosófica de la libertad y la ética en el software libre, proponiendo su uso en la alfabetización tecnológica digital para la construcción de una cultura libre y sostenible. Por último, en su desarrollo, mantiene una dialéctica “natural” con el software privativo.
Educación por competencias, currículo y didáctica: estudio de caso en dos países, Colombia y República Dominicana
Authors: Gómez-Sarmiento Margarita , Duque-Escobar Mauricio , Uzcanga Izaskun
Published: September 2018

Los programas STEM (Science, Technology, Engineering and Mathematics) han venido creciendo con el fin de promover una mejor educación para todos, en estas áreas consideradas fundamentales en el desarrollo de capacidad para la innovación y la competitividad en los países, así como para formar ciudadanos que puedan participar con responsabilidad en una democracia. En Colombia el programa STEM de Pequeños Científicos aparece desde el año 2000. En 2011, comienza un trabajo hermano en la República Dominicana, con quien se ha venido fortaleciendo un equipo interinstitucional orientado a promover una mejora de la educación básica en STEM. En este documento se presenta la estrategia utilizada para llevar a cabo este trabajo, el rol que han jugado actores académicos, empresariales y de gobierno. Igualmente se ilustran algunos de los aprendizajes logrados. El hecho de haber desarrollado el trabajo en dos países, y en red con más de 10 países en los que se realiza este tipo de actividad, permite esbozar estrategias y buenas prácticas a considerar.
EDITORIAL
Authors: Arvelo Alejandro
Published: September 2018

No precisa de un resumen.
Descripción de las competencias ciudadanas que presentan los jóvenes y adolescentes
Authors: Prada Rozo Mauricio Javier
Published: September 2018

Pertenecer a una sociedad exige una serie de competencias como la comunicación asertiva, el manejo adecuado del conflicto, así como el cumplimiento de normas y leyes establecidas por la comunidad, en un contexto adecuado que permitan la sana convivencia. Sin embargo, los niveles de violencia intrafamiliar, maltrato infantil y conflictividad entre la juventud siguen incrementando. De ahí que sea importante determinar el grado de apropiación que tienen los jóvenes y adolescentes en competencias ciudadanas, al igual que las estrategias desarrolladas por los docentes e instituciones educativas para lograr fortalecerlas. El presente documento es el resultado de un estudio no experimental, de corte transversal, que tiene como objetivo describir el grado de apropiación que presentan los jóvenes y adolescentes, al igual que las estrategias desarrolladas por los docentes de instituciones educativas pertenecientes a la localidad de Engativá, en competencias ciudadanas.
inclusión digital y la red de puntos México Conectado
Authors: Valencia Ortiz Rubicelia
Published: September 2018

El rezago en el que se encuentra gran parte de la población mexicana en términos de las tecnologías de la información, ha impulsado acciones gubernamentales, como los “Puntos México Conectado” (PMC), que intentan democratizar tanto el uso como el acceso a las TIC, en comunidades urbanas poco favorecidas del país, para potenciar la inclusión digital. En este documento se examina la evolución de los PMC y su situación actual en los últimos meses del sexenio 2012-2018, en relación con la satisfacción de la población usuaria. La revisión documental y los datos consultados sugieren que los PMC han alcanzado niveles importantes de satisfacción, y que sus usuarios han valorado positivamente la formación digital recibida. También, debe señalarse que iniciativas como estas siguen siendo muy focalizadas por su localización eminentemente urbana.
Reflexión y construcción del conocimiento en torno a las habilidades sociales y la competencia social
Authors: Losada Lidia
Published: September 2018

Este trabajo aborda el estado del conocimiento de las habilidades sociales y la competencia social. Es una síntesis del proceso de investigación desarrollado en la tesis doctoral: “Adaptación del Social Skills Improvement System-Rating Scales al contexto español en las etapas de Educación Infantil y Educación Primaria” (Losada, 2015). El propósito de este artículo es aportar una construcción de conocimiento teórico de los conceptos competencia social, habilidades sociales y asertividad, por sus implicaciones en el desarrollo de las habilidades sociales en la escuela y su utilidad en la evaluación y la intervención educativas. También, se presenta un recorrido histórico en cuanto al origen del estudio científico y sistemático de las habilidades sociales y revisa el significado del concepto habilidades sociales, y su relación con otros afines. Finalmente, se presentan sus implicaciones en el ámbito escolar y los beneficiosos efectos de la intervención educativa en el ajuste escolar y en el éxito académico.
As Cautelas Fiscais para Criar Despesa Pública
Authors: Toledo Junior Flavio Corrêa de
Published: September 2018

A Lei Complementar nº 101/2000 concebe o controle da despesa pública como um importante instrumento para se alcançar uma gestão fiscal responsável. Este artigo aborda institutos, previstos na Lei de Responsabilidade Fiscal, devotados a cumprir esse papel. Nesse sentido, trata de demarcar a diferença entre, por um lado, institutos como a criação, expansão e aperfeiçoamento da ação governamental e, por outro lado, as despesas obrigatórias de caráter continuado.
Licitações Exclusivas para Microempresas e Empresas de Pequeno Porte
Authors: Cunha Bruno Santos , Costa Renato Saeger Magalhães
Published: September 2018

A análise da Lei Complementar n. 123/2006, alterada pela Lei Complementar n. 147/2014, permite verificar uma nítida promoção das Microempresas e Empresas de Pequeno Porte na seara das licitações e contratações públicas. Para além das prerrogativas já contempladas pela Lei Federal n. 8.666/93, impôsse,pela novel legislação referida acima, um discrímen sobremodo restritivo, permitindo-se “licitações exclusivas” para ME’s e EPP’s. No ponto, importa discutir tal prerrogativa de exclusividade de participação, sobretudo tendo-se como pano de fundo a competição inerente aos processos licitatórios na busca da seleção da proposta mais vantajosa para a Administração Pública.
A Lei de Compliance e sua Configuração Enquanto Política Pública Regulatória para o Setor Privado Brasileiro
Authors: Góis Veruska Sayonara de
Published: September 2018

No trabalho em comento, investiga-se a Lei de Compliance para o setor privado - também conhecida como Lei Anticorrupção. A corrupção é um fenômeno preocupante, e internacionalmente identificado como causa de grandes crises do mercado, devido a fraudes corporativas do setor financeiro. O Brasil assume o compromisso de combater a corrupção, e para o setor privado, tivemos a Lei 12.846/2013. A referida norma necessita de regulamentação, mas já vem inspirando uma série de indagações e adequações estruturais. Analisaram-se, no texto, a partir de pesquisa bibliográfica e documental, a origem das normas de compliance, as características da Lei 12.846/2013 e sua configuração enquanto política pública regulatória destinada a resolver um problema, o que faz a partir da regulação. A Lei Anticorrupção prevê a necessidade de mecanismos e procedimentos internos de integridade, auditoria e incentivo à denúncia de irregularidades e a aplicação efetiva de códigos de ética e de conduta no âmbito da pessoa jurídica. Assim, a ideia de compliance denota o conceito de cumprimento e obediência às normas. Discute-se a configuração da norma como marco regulatório inaugural de uma política pública específica para combate à corrupção no setor privado, e os desafios e indagações que tal política suscita.
A cidadania e os Tribunais de Contas do Brasil
Authors: Câmara Delano Carneiro da Cunha
Published: September 2018

Trata do conceito de cidadania no Brasil como elemento essencial do Estado Democrático de Direito, analisando a relação desta com os Tribunais de Contas. Identifica a função de Controle Externo dos Tribunais de Contas do Brasil fundamentada na necessidade do cidadão acompanhar a aplicação dos recursos públicos. A cidadania não é associada apenas a nacionalidade, mas sim aos direitos fundamentais do indivíduo, constituindo um poder-dever dos cidadãos.
O Direito Privado no contexto da Constitucionalização do Direito
Authors: Rocha Neto Alcimor A.
Published: September 2018

O objetivo do presente trabalho é analisar o Direito Privado e seus institutos sob a ótica dos novos paradigmas interpretativos do Direito bem como estudar as modificações que necessariamente deve sofrer – e as que já vem sofrendo – em face de um cenário na teoria do Direito que se tem chamado de constitucionalização do direito. Inicialmente faz-se necessário que busquemos estabelecer os conceitos que viriam a formar este novo paradigma de interpretação e aplicação do Direito a partir de um “ambiente jurídico” onde a constitucionalização mostra-se como ideia cada vez mais presente e aceita no pensamento dos estudiosos do Direito nas suas mais diversas searas. Empós é de igual importância que se alcancem as implicações deste novo cenário no Direito Privado e proceder à elaboração de um paralelo entre o Direito Privado visto de uma ótica privatista, ainda a imperar, porém caindo cada vez mais em descrédito por conta das suas falhas e insuficiências decorrentes da própria natureza das teorias em que se sustentam estas visões, e o Direito Privado enxergado a partir de uma ideia de constitucionalização segundo a qual todas as normas jurídicas antes de gozarem de uma validade plena, não apenas a formal, mais conhecida como vigência, têm que ser submetidas ao teste da filtragem constitucional.