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Influence of different land-use types on selected soil properties related to soil fertility in A Luoi District,Thua thien Hue,Vietnam

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Soil Ecology Letters 2024年第1期6卷 131-140页

作者： Khoa phuc Nguyen Tan Trong Tran Huy Dinh Le Phuong Thuy Nguyen Hien Thao thi Pham Dien Thanh Nguyen Ngu Huu Nguyen University of Agriculture and Forestry Hue UniversityHue CityThua Thien Hue 52000Vietnam School of Biotechnology Tan Tao UniversityTan Duc ECityDuc HoaLong An850000Vietnam

Land use type affects the physicochemical properties of *** value of OM and TN is high in acacia *** acidity of soil is considered a serious constraint for *** cash crops are acacia,cassava,banana,rice and *** fertility is affected by land-use types and land management,which exacerbates soil erosion and various other forms of soil degradation in the mountainous regions of *** study was conducted in A Luoi District,Thua thien Hue,Vietnam to identify the effects of land-use types on specific soil physicochemical characteristics related to soil *** physicochemical properties,such as organic matter(OM),total nitrogen(TN),total phosphorous(TP),and K+were significantly affected by land-use *** results showed that the soils were sandy in rice but clay loam for acacia and *** mean bulk density value of acacia soil was significantly greater than that of other *** were higher in the acacia soils than those in the rice,maize,and banana *** OM content was significantly higher in the acacia,cassava,and banana soils than those in the rice and maize *** mean of exchangeable K+in the rice soil was higher compared to those in other soils and was affected by land-use *** high exchangeable acidity content in the soils was probably due to intensive ***,both land use type and management did not affect the CEC ***,the inappropriate land use caused the disturbance of soil physicochemical properties,indicating that the conditions of rice and maize soils are becoming worse than acacia ***,lowering the intensity of cultivation,adopting incorporated soil fertility management,and applying organic fertilizer should preserve the existing conditions and enhance soil properties.

关键词： Land-use types soil characteristics soil frility suitable crop Vietnam

Estimation of Waste Generation and Recycling Potential from Traditional Market: A Case Study in Hue City, Vietnam

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Journal of Environmental Protection 2015年第4期6卷 308-320页

作者： Yasuhiro Matsui do thi Thu Trang Nguyen phuc Thanh Graduate School of Environmental and Life Science Okayama University Okayama Japan Hitachi Zosen Corp Osaka Japan

this study was conducted to provide a detailed description of waste generation and characteristics from a traditional market in Hue city, located in central Vietnam. The authors conducted a waste generation survey and a waste composition survey for 309 stalls/vendors in five markets by 17 business categories for 10 consecutive days. The waste generation rates by stall/vendor and by floor area were assessed in three waste categories: general waste, recyclable, and food residues. The general waste that would be sent to a landfill site was classified into 10 physical categories and 77 sub-categories. For general waste, food waste accounted for the largest part, followed by plastic and grass. By multiplying the waste generation rate by stall/vendor by the total number of stall/vendors in 23 markets, the authors estimated the total amounts of general waste, recyclable, food residue and total waste by business category. The total waste generated from market was 17.0 tons/day, of which 4.6 tons (27.1%) were collected by pig farmers for feeding livestock and 0.6 tons (3.6%) were sold to the recycling market. The composting potential accounted for 55.2% of total waste generation from the traditional market in Hue. The recycling potential accounted for 5.1%. The total disposal amount sent to the landfill site would be reduced from 69.2% to 8.8% of the total. The 95% confidence interval (CI) of total waste amount from 23 markets was also estimated using Monte Carlo simulation based on the mean and standard error of the waste generation rate. The range of 95% CI was 14.9 - 18.9 tons/day.

关键词： Traditional Market Recycling Potential Composting Potential

Catabolism of Branched Chain Amino Acids Supports Respiration but Not Volatile Synthesis in Tomato Fruits

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Molecular Plant 2012年第2期5卷 366-375页

作者： Andrej Kochevenko Wagner L. Araujo Gregory S. Maloney Denise M. Tieman phuc thi do Mark G. Taylor Harry J. Klee Alisdair R. Fernie Max Planck Institute of Molecular Plant Physiology 14476 Potsdam-Golm Germany Departamento de Biologia Vegetal Universidade Federal de Vicosa 36570-000 Vicosa Minas Gerais Brazil Horticultural Sciences Department and the Plant Molecular ＆ Cellular Biology Program University of Florida Gainesville FL 32611 USA

The branched-chain amino acid transaminases （BCATs） have a crucial role in metabolism of the branched-chain amino acids leucine, isoleucine, and valine. These enzymes catalyze the last step of synthesis and the initial step of degradation of these amino acids. Although the biosynthetic pathways of branched chain amino acids in plants have been extensively investigated and a number of genes have been characterized, their catabolism in plants is not yet completely understood. We previously characterized the branched chain amino acid transaminase gene family in tomato, revealing both the subcellular localization and kinetic properties of the enzymes encoded by six genes. Here, we examined possible functions of the enzymes during fruit development. We further characterized transgenic plants differing in the expression of branched chain amino acid transaminases I and 3, evaluating the rates of respiration in fruits deficient in BCAT1 and the levels of volatiles in lines overexpressing either BCAT1 or BCAT3. We quantitatively tested, via precursor and isotope feeding experiments, the importance of the branched chain amino acids and their corresponding keto acids in the formation of fruit volatiles. Our results not only demonstrate for the first time the importance of branched chain amino acids in fruit respiration, but also reveal that keto acids, rather than amino acids, are the likely precursors for the branched chain flavor volatiles.

关键词： alternative electron transport metabolic regulation molecular physiology nitrogen metabolism volatiles tomato.

Induction of the AOX1D Isoform of Alternative Oxidase in A. thaliana T-DNA Insertion Lines Lacking Isoform AOX1A Is Insufficient to Optimize Photosynthesis when Treated with Antimycin A

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Molecular Plant 2009年第2期2卷 284-297页

作者： Inga Strodtkotter Kollipara Padmasree Challabathula Dinakar Birgit Speth Pamela S. Niazi Joanna Wojtera Ingo Voss phuc thi do Adriano Nunes-Nesi Alisdair R. Fernie Vera Linke Agepati S. Raghavendra Renate Scheibe Department of Plant Physiology FBS University of Osnabrueck 49069 Osnabrueck Germany Department of Plant Sciences School of Life Sciences University of Hyderabad Hyderabad 500 046 India Max Planck Institute for Molecular Plant Physiology Am Muhlenberg-1 14476 Potsdam-Golm Germany

Plant respiration is characterized by two pathways for electron transfer to O2, namely the cytochrome pathway （CP） that is linked to ATP production, and the alternative pathway （AP）, where electrons from ubiquinol are directly transferred to O2 via an alternative oxidase （AOX） without concomitant ATP production. this latter pathway is well suited to dispose of excess electrons in the light, leading to optimized photosynthetic performance. We have characterized T- DNA-insertion mutant lines of Arabidopsis thaliana that do not express the major isoform, AOXIA. In standard growth conditions, these plants did not show any phenotype, but restriction of electron flow through CP by antimycin A, which induces AOXIA expression in the wild-type, led to an increased expression of AOXID in leaves of the aoxla-knockout mutant. Despite the increased presence of the AOX1D isoform in the mutant, antimycin A caused inhibition of photosyn- thesis, increased ROS, and ultimately resulted in amplified membrane leakage and necrosis when compared to the wild- type, which was only marginally affected by the inhibitor. It thus appears that AOX1 D was unable to fully compensate for the loss of AOXIA when electron flow via the CP is restricted. A combination of inhibition studies, coupled to metabolite profiling and targeted expression analysis of the P-protein of glycine decarboxylase complex （GDC）, suggests that the aoxla mutants attempt to increase their capacity for photorespiration. However, given their deficiency, it is intriguing that increase in expression neither of AOX1D nor of GDC could fully compensate for the lack of AOXIA to optimize pho- tosynthesis when treated with antimycin A. We suggest that the aoxla mutants can further be used to substantiate the current models concerning the influence of mitochondrial redox on photosynthetic performance and gene expression.

关键词： abiotic/environmental stress acclimation--physiological alternative electron transport photorespiration photosynthesis mitochondria T-DNA insertion line.

Estimation of the Solid Waste Generation and Recycling Potential of the Hotel Sector: A Case Study in Hue City, Vietnam

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Journal of Environmental Protection 2018年第7期9卷 751-769页

作者： Le Hoang Son Yasuhiro Matsui do thi Thu Trang Nguyen phuc Thanh Graduate School of Environmental and Life Science Okayama University Okayama Japan Danang University of Science and Technology University of Da Nang Da Nang Vietnam New Royal Village B202 1497-1 Muramatsu Tokai Village Naka-gun Ibaraki 319-1112 Japan Hitachi Zosen Corporation Tokyo Japan

this study examined the solid waste generation and recycling potential of the hotel sector in Hue City, Vietnam. The authors conducted waste measurement, waste composition, and questionnaire surveys for 45 target hotels over ten consecutive days. The waste generation rates (WGRs) by rooms, beds, guests, and workers were assessed by hotel class using the following three waste categories, considering informal waste collection: general waste (GW), separated recyclables (SRe), and separated food residue (SFR). The 5-star hotels exhibited the highest WGR per room at 1.61 kg/room/day, while 1-star hotels exhibited the lowest per-room WGR (0.39 kg/room/day). Spearman Rank correlation test revealed that hotel class and per-room, per-bed, and per-guest WGRs were significantly positively correlated (p this study, the estimated total amount of waste generated was 6.88 tons/day (6.26 to 7.62 tons/day, 95% CI), of which 4.37 (64%), 2.13 (31%), and 0.38 tons/day (6%) were GW, SFR, and SRe, respectively. The recycling and composting potentials remaining in GW were 0.94 (13%) and 2.57 tons/day (37%), respectively. High-class hotels should be considered as the highest priority targets for a “reduce, reuse, recycle” (3R) promotion campaign in the future, with estimated recycling and composting potentials of 0.27 (4%) and 1.10 tons/day (16%), respectively.

关键词： Waste Generation Recycling Potential Hotel Sector Confidence Interval Estimation

Physical Examination Indicated Rescue Cerclage to Improve Live Birth Rate at Hung Vuong Hospital in Vietnam

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Open Journal of Obstetrics and Gynecology 2020年第3期10卷 400-408页

作者： Huynh Nguyen Khanh Trang Tran thi Ngoc Tam Pham Huynh phuc Hung Hoang thi Diem Tuyet Pham Ngoc Thach University of Medicine HCMC Vietnam Hung Vuong Hospital HCMC Vietnam

Emergency cerclage with advanced cervical dilatation and bulging of fetal membranes is still challenging to obstetricians.?Objective:?To identify the live birth rate after physical examination indicated rescue cerclage. Methods:?A retrospective cohort study of 36 pregnant women, who underwent rescue cerclage at Hung Vuong hospital from January 2015 to January 2019. Selection criteria: cervical dilation 10 to 40 mm, at 20 to 30 gestational weeks. Exclusion criteria: multiple pregnancy, birth defects, pregnancy termination due to maternal or fetal indications. Results: Delivery of live infant rate was 72.22%;mean pregnancy prolongation was 42.8 ±?34.15 days. Early live birth rate was 77.78%. The percentage of delivery after 34 and 37 weeks was 44.45% and 27.78%, respectively. Live birth weight was 400 to 3600?g, with mean being 1878.06 ±?1049.04?g. No procedure-related complication was observed. Conclusions:?Rescue cerclage may be an effective and safe method in prolonging pregnancy and improving neonatal outcome in women with cervical dilation 10 to 40 mm. It should be considered as a viable option for women with a dilated cervix in 20 to 30 gestational weeks. Future controlled studies are needed.

关键词： Emergency Cerclage Delivery of Live Infant Rate

Promote Combinational Researches, Training, and Applied Scientific Technology in Universities and Institutes in Vietnam

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Journal of Sociology Study 2016年第5期6卷 342-347页

作者： thi Dung Nguyen Hong phuc Nguyen University of Labour and Social Affairs Hanoi city Viemam Military Medical Chamber National Defense AcademyHanoi city Vietnam

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短梗千金藤,越南防己科新记录种（英文）

热带亚热带植物学报 2019年第3期27卷 323-326页

作者：武进正郑氏福童毅华夏念和越南科学技术院越南国家自然博物馆河内越南越南科学与技术院科学与技术研究生院河内越南宏德大学清化越南中国科学院华南植物园中国科学院植物资源保护与可持续利用重点实验室&广东省数字植物园重点实验室广州510650

报道了越南防己科(Menispermaceae)一新记录种:短梗千金藤(Stephania brevipes Craib)。据文献记载,该种仅分布于泰国,现首次在越南发现其分布。本种与粪箕笃(*** Lour.)形态相近,但叶宽三角状卵形至三角状扁圆形,雄花序小,腋生或生于... 详细信息

报道了越南防己科(Menispermaceae)一新记录种:短梗千金藤(Stephania brevipes Craib)。据文献记载,该种仅分布于泰国,现首次在越南发现其分布。本种与粪箕笃(*** Lour.)形态相近,但叶宽三角状卵形至三角状扁圆形,雄花序小,腋生或生于无叶的茎上,总梗较短,花萼淡黄色,花瓣红紫色,内果皮外部沟数目较少而与后者不同。还提供了该种详细的形态学描述、图版、分布及生态学等信息。凭证标本保存在越南国立自然博物馆标本馆(VNMN)和中国科学院华南植物园标本馆(IBSC)。

关键词：防己科千金藤属短梗千金藤新记录越南

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胡志明市中央公园

现代装饰 2019年第10期 114-117页

作者： dong Viet Ngoc Bao Nguyen Xuan Man Vu Ngoc Anh do thi Duong thi Nguyen phuc Anh Thu Pham Duy Bao Long Nguyen Truong Ngan Cao Trung Nguyen Trinh Tien Vinh Le Thuy Ngan Trinh Duc Tri Bui Quang Khanh Pham thi Ngoc Ha Chris Bosse 郭映琴(编译) 方钰丹 LAVA&ASPECT Studio

LAVA联合ASPECT Studio赢得了越南胡志明市中央公园的国际竞赛,该项目计划于2020年开始建设。同时,LAVA将为该项目在未来三年的开发和建设提供服务。设计团队和合作方将共同创造一个真实存在的场所,搭建连接过去和未来的桥梁,建立起人... 详细信息

LAVA联合ASPECT Studio赢得了越南胡志明市中央公园的国际竞赛,该项目计划于2020年开始建设。同时,LAVA将为该项目在未来三年的开发和建设提供服务。设计团队和合作方将共同创造一个真实存在的场所,搭建连接过去和未来的桥梁,建立起人类、自然与科技之间的联系。摒弃了传统拘谨的设计格局,LAVA的设计是随性的、多功能的、友好的、互相联系且贯通的。

关键词：中央公园胡志明市