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  • Vietnam National University Journal of Science  (6)
  • 2015-2019  (6)
  • 1
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2017
    In:  VNU Journal of Science: Natural Sciences and Technology Vol. 33, No. 2 ( 2017-06-28)
    In: VNU Journal of Science: Natural Sciences and Technology, Vietnam National University Journal of Science, Vol. 33, No. 2 ( 2017-06-28)
    Abstract: Trong quá trình nghiên cứu họ Gừng (Zingiberaceae) ở Bắc Trung Bộ, chúng tôi đã phát hiện và bổ sung loài Zingiber nitens M.F. Mewman cho hệ thực vật Việt Nam, nâng tổng số loài của chi Gừng (Zingiber) lên 34  loài.
    Type of Medium: Online Resource
    ISSN: 2588-1140 , 2588-1140
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2017
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  • 2
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2019
    In:  VNU Journal of Science: Medical and Pharmaceutical Sciences Vol. 35, No. 1 ( 2019-06-21)
    In: VNU Journal of Science: Medical and Pharmaceutical Sciences, Vietnam National University Journal of Science, Vol. 35, No. 1 ( 2019-06-21)
    Abstract: Panax bipinnatifidus Seem. is a precious medicinal plant belonging to the Araliaceae family. This study qualitatively analyzed saponins of the stem, leaf and rhizome of P. bipinnatifidus by HPLC. Subsequently, by using chromatographic techniques, a major saponin from the leaf of P.bipinnatifidius Seem. was isolated. On the basis of NMR and MS spectroscopic data as well as comparison with those reported in the literature, the isolated saponin’s structure was identified as stipuleanoside R2. To the best our knowledge, this is the first report of saponin from the aerial part of P. bipinnatifidius Seem. Keywords Panax bipinnatifidus, Araliaceae, Stipuleanosid R2, HPLC.. [1] Nguyễn Văn Tập, Các loài thuộc chi Panax L. ở Việt Nam, Tạp chí Dược liệu. 10(3) (2005) 71-76. [2] Nguyễn Văn Tập, Phạm Thanh Huyền, Kết quả nghiên cứu về phân bố, sinh thái sâm vũ diệp và Tam thất hoang ở Việt Nam, Tạp chí Dược liệu. 11(5) (2006) 177-180. [3] Nguyen Huu Tung, Tran Hong Quang, Nguyen Thị Thanh Ngan, Chau Van Minh, Bui Kim Anh, Pham Quoc Long, Nguyen Manh Cuong, Young Ho Kim, Oleanolic triterpenesaponins from the roots of Panax bipinnatifidus, Chem Pharm Bull (Tokyo). 59(11) (2011) 1417-1420. [4] Đỗ Văn Hào, Nguyễn Thị Huệ, Nguyễn Thị Thu Thủy, Đặng Thị Ngần, Đào Thị Hồng Bích, Nguyễn Thị Hoàng Anh, Dương Thị Ly Hương, Nguyễn Hữu Tùng, Thành phần hóa học của phân đoạn ethyl acetat từ rễ cây sâm vũ diệp (Panax bipinnatifidus Seem.) thu hái ở Sa Pa, Lào Cai, Tạp chí Khoa học ĐHQGHN - Khoa học Y Dược. 33(2) (2017) 50-55. [5] Nguyễn Thị Thu Thủy, Nguyễn Thị Huệ, Đặng Thị Thùy, Nguyễn Thị Hoàng Anh, Dương Thị Phượng, Phạm Thị Tuyết Nhung, Hà Vân Oanh, Dương Thị Ly Hương, Nguyễn Hữu Tùng, Thành phần saponin của thân rễ sâm vũ diệp thu hái ở Sa Pa, Lào Cai, Tạp chí Dược liệu. 23(2) (2018) 82-88.[6] Wen-zhi Yang, Ying Hu, Wan-ying Wu, Min Ye, De-an Guo, Saponins in the genus Panax L. (Araliaceae): A systematic review of their chemical diversity, Phytochemistry. 106 (2014) 7-14. [7] Shashi B. Mahato, Asish P. Kundu, 13C NMR spectra of pentacyclic triterpenoids - a complication and some salient features, Phytochemistry. 37 (1994) 1517-1575. [8] Pawan K. Agrawal, NMR spectroscopy in the structural elucidation of oligossacharides and glycosides, Phytochemistry. 31 (1992) 1307-1330. [9] Chun Liang, Yan Ding, Huu Tung Nguyen, Jeong-Ah Kim, Hye-Jin Boo, Hee-Kyoung Kang, Mahn Cuong Nguyen, Young Ho Kim, Oleanane –type triterpenoids from Panax stipuleannatus and their anticancer activities, Bioorg Med Chem Lett. 20 (2010) 7110-7115.  
    Type of Medium: Online Resource
    ISSN: 2588-1132 , 2615-9309
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2019
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  • 3
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2017
    In:  VNU Journal of Science: Earth and Environmental Sciences Vol. 33, No. 2 ( 2017-06-28)
    In: VNU Journal of Science: Earth and Environmental Sciences, Vietnam National University Journal of Science, Vol. 33, No. 2 ( 2017-06-28)
    Abstract: Tóm tắt: Biến đổi khí hậu và nước biển dâng đang ngày càng làm trầm trọng hơn tình trạng xâm nhập mặn tại các khu vực đồng bằng ven biển. Xâm nhập mặn ảnh hưởng đến cơ sở hạ tầng, kinh tế, xã hội, sinh kế và đời sống dân cư địa phương. Trên cơ sở phương pháp đánh giá tính dễ bị tổn thương của IPCC-UNESCO IHE, nghiên cứu này tập trung làm rõ khả năng dễ bị tổn thương ở cấp độ phường, xã trên địa bàn thành phố Đà Nẵng do nhiễm mặn. Khả năng dễ bị tổn thương được đánh giá thông qua ba thành phần là mức độ phơi bày, mức độ nhạy cảm và năng lực thích ứng, dựa trên 5 hợp phần: kinh tế, xã hội, điều kiện tự nhiên - môi trường - sinh thái, cơ sở hạ tầng và quản trị đô thị. Kết quả nghiên cứu cho thấy khả năng dễ bị tổn thương do nhiễm mặn ở Đà Nẵng cao nhất thuộc về hai xã Hòa Quý và Hòa Xuân; 11 phường, xã được xếp vào nhóm có tính dễ bị tổn thương cao; 21 phường, xã có tính dễ bị tổn thương trung bình; 22 phường, xã được xếp vào nhóm tổn thương thấp.
    Type of Medium: Online Resource
    ISSN: 2588-1094 , 2588-1094
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2017
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  • 4
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2019
    In:  VNU Journal of Science: Natural Sciences and Technology Vol. 35, No. 4 ( 2019-12-22)
    In: VNU Journal of Science: Natural Sciences and Technology, Vietnam National University Journal of Science, Vol. 35, No. 4 ( 2019-12-22)
    Abstract: Abstract: Amomum glabrum S. Q. Tong (Zingiberaceae), collected from the Provinces in North Central Vietnam (Thanh Hoa province: Xuan Lien Nature Reserve; Nghe An: Pu Mat National Park, Pu Huong and Pu Hoat Nature Resever; Ha Tinh: Vu Quang National Park; Quang Binh: Phong Nha-Ke Bang National Park; Thừa Thiên Huế: Bạch Mã National Park), is reported here as a new record for the flora of Vietnam, which raised the species number of Amomum to 13. A detailed description and coloured photographs are provided along with data on distribution, ecology, phenology, conservation status and notes on the relative species Keywords: Amomum, Amomum glabrum, North Central, Zingiberaceae. References [1] de Boer H., Newman M., Poulsen A.D., Droop A.J., Fér T., Lê T.T.H., Hlavatá K., Lamxay V., Richardson J.E., Steffen K. & Leong-Škorničková J., Convergent morphology in Alpinieae (Zingiberaceae): Recircumscribing Amomum as amonophyletic genus, Taxon 67 (1) (2018) 6–36.[2] Gagnepain F., Amomum. In: Lecomte, P. H., Fl. Indo-Chine 6(1) (1908) 102–117.[3] Pham Hoang Ho, An illustrated Flora of Vietnam 3: 432–461, Youth Publication, Ho Chi Minh City (in Vietnamese).[4] Nguyen Quoc Binh, Classification Research in the Zingiberaceae in Vietnam, Biology PhD., Ha Noi, 2011 (in Vietnamese).[5] V. Lamxay and M.F. Newman, Are vision of Amomum (Zingiberaceae) in Cambodia, Laos and Vietnam, Edinburgh Journal of Botany 69(1) (2012) 99-206.[6] Ly Ngoc Sam & Jana Leong-Skornickova, Amomum cristatissimum (Zingiberaceae: Alpinieae), a new species with echinate fruits from central Vietnam, Nordic Journal of Botany 36(3) (2018) https://doi.org/10.1111/njb.01691.[7] Wu D.L. and Larsen K., Flora of China 24: 347-356. St Louis: Missouri Botanical Garden Press, and Beijing: Science Press, 2000.[8] S.Q. Tong, Some new taxa of Zingiberaceae from Yunnan, Acta Phytotaxonomica Sinica 27(4) (1989) 277–292.[9] W. Roxburgh, Amomum. In: Flora Indica 1 (1820) 37–46. Serampore: Mission Press.   
    Type of Medium: Online Resource
    ISSN: 2588-1140 , 2615-9317
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2019
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  • 5
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2019
    In:  VNU Journal of Science: Policy and Management Studies Vol. 35, No. 1 ( 2019-03-27)
    In: VNU Journal of Science: Policy and Management Studies, Vietnam National University Journal of Science, Vol. 35, No. 1 ( 2019-03-27)
    Abstract: In the context of all countries are moving towards a dynamic and developed economy, it would be impossible not to mention the "labor factor". Obviously, this is an influential factor because the higher quality of labor resources will result in a more conveinent and easier economic development process and vice versa. However, the social mobilization of labor resources, especially high-quality S & T human resources, has become a tough reality. This phenomenon has become more and more popular and complicated within organizations and countries. There are many manifestations of the social mobility phenomenon of high quality S & T human resources, but in this article, the authors focus on two social mobility flows which are social mobility with migration, also known as "brain drain" and social mobility without migration – "internal brain drain". The authors conducted a survey on the current status of social mobility of high-quality S & T human resources in two national universities of Vietnam: Vietnam National University, Hanoi and Vietnam National University, Ho Chi Minh City in order to recognize the highlights and trends of this phenomenon. From that, the authors set out a number of policy suggestions to minimize the negative impacts from social mobility and to improve the efficiency of using high-quality S & T human resources in Vietnam universities today.
    Type of Medium: Online Resource
    ISSN: 2588-1116 , 2615-9295
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2019
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  • 6
    Online Resource
    Online Resource
    Vietnam National University Journal of Science ; 2018
    In:  VNU Journal of Foreign Studies Vol. 34, No. 4 ( 2018-08-02)
    In: VNU Journal of Foreign Studies, Vietnam National University Journal of Science, Vol. 34, No. 4 ( 2018-08-02)
    Abstract: Autonomy is a popular research theme among scholars worldwide. This article explains the selection, analysis, evaluation and deployment of learner autonomy model which is suitable for Vietnam’s public officials, civil servants and public employees to acquire and master foreign languages who would benefit from the State-level research project A study to develop foreign language proficiency enhancement models for public officials, civil servants and public employees in the Customs, Foreign Relations, Tourism and Border Guards sectors for public service delivery amidst the international integration trend in the Northwest conducted by ULIS-VNU under the Program “Science and Technology for sustainable development of the Northwest” coded KHCN-TB/13-18. The article also formulates recommendations on ways to improve foreign language proficiency for Vietnam’s public officials, civil servants and public employees, considering that there is a need for innovation in foreign language teaching and learning methods in order to enable learners to use foreign languages at work effectively.
    Type of Medium: Online Resource
    ISSN: 2525-2445 , 2525-2445
    Language: Unknown
    Publisher: Vietnam National University Journal of Science
    Publication Date: 2018
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