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Phylogenetic Analysis of Baculovirus Isolates from Diseased Insects in Southern Vietnam

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Open Journal of Genetics 2014年第5期4卷 378-384页

作者： Nguyen Thi Phuong Thao Nguyen Thi thuy Nguyen Khac Duy doan Chinh Chung Do minh Si Le Thanh Long Institute of Tropical Biology Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam University of Science Ho Chi Minh City Vietnam

The aim of this study was to investigate the molecular identification and assess the genetic relationship of baculovirus isolated from Southern Vietnam. The diseased insect samples were collected from the different fields. The partial sequence of 450 base pairs of lef-8 gene was amplified and sequenced to assess the genetic variations of baculovirus isolates specific for Spodoptera litura, Helicoverpa zea, and Helicoverpa armigera. The sequences alignment demonstrated that Helicoverpa zea specific isolates exhibited six single nucleotide polymorphic sites. Whereas, twenty five single polymorphic sites were found in Spodoptera litura specific isolates. Thus, Spodoptera litura specific isolates were higher polymorphic than Helicoverpa zea specific isolates. The genetic distance analyses showed that the distance between Vietnamese baculovirus isolates and Group II Alphabaculovirus isolates was lower than other Baculovirus groups. The phylogeny of Vietnamese isolates in relation to other baculovirus isolates was also determined using partial sequences of lef-8 gene. The phylogenetic tree placed all Vietnamese isolates in Group II Alphabaculovirus, where seven Vietnamese Helicoverpa zea specific isolates were most closely related to Helicoverpa zea SNPV, fourteen Vietnamese Spodoptera litura specific isolates were located with Spodoptera litura NPV-G2 in one clade and a Vietnamese Helicoverpa armigera isolate was appeared to be closely related to Helicoverpa armigera SNPV-NNg1, Helicoverpa armigera NPV-C1, Helicoverpa armigera NPV-G4.

关键词： Baculovirus Helicoverpa armigera Helicoverpa zea Lef-8 Gene Phylogeny Spodoptera litura

Mobilization of Arsenic in Groundwater in the Southern Hanoi City (Vietnam) as Studied by Isotopic and Related Techniques

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Journal of Environmental Protection 2013年第7期4卷 68-74页

作者： Dang Duc Nhan doan Van Canh Pham Quy Nhan Nguyen Thi Thanh thuy Dinh Thi Bich Lieu Vo Thi Anh Dang Anh minh Center for Water Resources Management Hanoi Vietnam Hanoi University of Mining and Geology Hanoi Vietnam Institute for Nuclear Science and Technology Hanoi Vietnam Vietnam Association of Hydrogeology Hanoi Vietnam Vietnam Atomic Energy Institute Hanoi Vietnam

Sixteen samples of surface and groundwater from the most southern part of the Hanoi city (Vietnam) has been taken and analyzed for the soluble major ions, namely Na+, K+, , Ca2+, Mg2+, Cl-, , and arsenic as well as molybdenum content along with isotopic composition of deuterium and oxygen (δ2H and δ18O), tritium activity, and δ13C in DIC. The stable isotopic composition of groundwater indicates the water in that area is recharged from the local meteoric and theRed River’s water sources. The mean residence time of the groundwater should be before 60-ies of the past century as its 3H activity ranged from LOD of the analytical technique (0.4 TU) to 2.1 TU only implying that As would not be related to its recent application. The concentrations of As in the water samples is weakly correlated with those of Fe2+ (R2 = 0.08) but it strongly did with the concentrations of bicarbonate (R2 = 0.80). Thus, bicarbonate seems to liberate As adsorbed on hydrous ferric oxides (Hfo) into water through the displacement mechanism. The surface adsorption-desorption of As could be proven by a strong correlation between As and Mo concentrations (R2 = 0.77). The bicarbonate formation in groundwater was thought to be, partly, due to the bio-mineralization of natural organic matter (NOM) by bacteria followed by the dissolution of calcite and/or dolomite present in the sediments. Evidence for the NOM bio-mineralization was found in the close relationship between δ13C and the concentration of bicarbonate in water. Therefore, the mobilization of As in groundwater of bicarbonate type in the southern part of Hanoi city seems to be not only due to the reductive dissolution of the Hfo but the bicarbonate displacement also should be considered.

关键词： Arsenic Mobilization Isotopic Technique Groundwater Nom Bio-Mineralization As-Bicarbonate Displacement

RASSFIA Promoter Hypermethylation as a Prognosis and Diagnosis for Breast Cancer in Vietnamese Population

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Journal of Life Sciences 2014年第4期8卷 316-321页

作者： Truong Kim Phuong Lao Duc Thuan doan Thi Phuong Thao Le Huyen Ai thuy Falculty of Biotechnology Ho Chi Minh City Open University Ho Chi Minh City 70000 Vietnam Falculty of Medicine Ho Chi Minh City Medical University Ho Chi Minh City 70000 Vietnam

Aberrant tumor suppressor gene promoter methylation was associated with the several cancers, including breast cancer, which was the common female deaths in most countries involved in Vietnam. The methylation in tumor suppressor genes, including RASSFIA, were the key targets of establishing the potential biomarkers for prognosis and early diagnosis of breast cancer. In present study, with the aim towards using the hypermethylation at CpG islands of promoter of RASSFIA as the biomarker for breast cancer in Vietnamese population, MSP （methyl specific PCR） was carried out to analyze the hypermethylation status ofRASSFIA gene in 115 samples including 95 breast cancer specimens and 20 normal breast tissues from another disease （not breast cancer）. All samples were obtained from Ho Chi minh City Medical Hospital, Vietnam. The known predictive and prognostic factors： HER2/neu overexpression was immunohistochemistry stained as input value for breast cancer specimens. For input value confirmed, the overexpression of p53 protein was also analyzed together with prior immunochemical assay. The results indicated that the hypermethylation of frequencies for methylation of given gene reached 42.1% （P 〈 0.05）. In addition, the DNA hypermethylation of RASSFIA gene increased the possibility to be breast cancer with high incidence via calculated of odd ratio （P 〈 0.05）. In conclusion, the hypermethylation of candidate genes could be used as the promising biomarkers applying in Vietnamese breast cancer patients.

关键词： RASSFIA hypermethylation MSP bisulfite modification breast cancer.

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使用轻音乐歌曲教授英文

文化创新比较研究 2018年第13期2卷 51-52页

作者：团翠琼越南河内国家大学越南河内10000

深入地研究和分析学习者通过轻音乐学习英语所获得的好处,并提供了一种通过歌曲教授英文的方法,以便使学习者最有效地提高四个外语技能:听-说-读-写。通过这种学习方法,学习者不仅可以练习外语技能,而其还可以在外语学习时间中感到放松... 详细信息

深入地研究和分析学习者通过轻音乐学习英语所获得的好处,并提供了一种通过歌曲教授英文的方法,以便使学习者最有效地提高四个外语技能:听-说-读-写。通过这种学习方法,学习者不仅可以练习外语技能,而其还可以在外语学习时间中感到放松。通过本研究论文,我们希望为外语的教授工作提供一种新的教学方法。

关键词：歌曲轻音乐歌曲学习英文通过歌曲学习英文轻松地学习英文

越南南部妈祖宫庙中的汉字古籍——以越南胡志明市第五郡的穗城会馆天后庙为例

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妈祖文化研究 2023年第1期 8-18页

作者： [越南]段玉钟阮垂庄阮福才厦门大学社会与人类学院福建厦门361000 厦门大学海外教育学院福建厦门361000 厦门大学哲学系福建厦门361000

妈祖文化是中国普遍的一种信仰。这种信仰起源于福建地区,不仅逐渐发展起来,在中国随处可见,而且在日本、韩国、新加坡、越南等华人居住的国家和地区也有存在。大约在16世纪末,随着中国华人移居到越南南部,妈祖文化也出现并逐渐形成。... 详细信息

妈祖文化是中国普遍的一种信仰。这种信仰起源于福建地区,不仅逐渐发展起来,在中国随处可见,而且在日本、韩国、新加坡、越南等华人居住的国家和地区也有存在。大约在16世纪末,随着中国华人移居到越南南部,妈祖文化也出现并逐渐形成。随着妈祖宫庙建筑的出现,在这些场所里还保存了一些珍贵的古籍,如楹联、横匾。这些丰富多样的汉字古籍思想内容,为越南南部华人的特殊信仰做出了贡献。本研究采用田野调查、文献研究与综合分析法,目的是初步了解越南南部妈祖宫庙的古籍以及它的价值和文化特征。

关键词：妈祖宫庙妈祖文化古籍楹联越南南部

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越南水电站大坝变形分析研究

测绘地理信息 2016年第3期41卷 48-52页

作者：邹进贵裴氏坚贞肖扬宣 doan Van Chinh 武汉大学测绘学院湖北武汉430079 thuy LOI University Hanoi Vietnam LE QUY DON Technical University Hanoi Vietnam

分析了大坝水平位移的视准线观测方法,简述季节性时间序列法和BP神经网络法在变形监测中的应用,并对和平水电站历史观测数据进行分析和预测。结果表明,两种方法都能较准确地描述大坝的变形趋势,为大坝的安全监控提供了参考。

关键词：越南水电站视准线法变形监测 BP神经网络自回归滑动平均 SARIMA