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Tissue engineering using mesenchymal stem cells with periosteal wrap for bone defect repair in rabbits

Plastic and Aesthetic Research 2015年第1期2卷 340-345页

作者： Trung-Hau LêThua dang-Nhat Pham Khanh-Linh Lê Minh-Tuan Lê Quang-Ton-Quyen nguyen Phan-Huy nguyen Ngoc-Vu Tran Ngoc-Luong nguyen Willy Boeckx Albert Demey Department of Plastic Reconstructive and Hand SurgeryCenter of Orthopaedic and Plastic SurgeryHue Central HospitalHue City 531120Vietnam Department of Hematology Hue Central HospitalHue City 531120Vietnam Department of Biology College of SciencesHue UniversityHue City 521120Vietnam Department of Plastic Surgery Brugmann University HospitalUniversitélibre de Bruxelles1020 BrusselsBelgium

Aim:Mesenchymal stem cells(MSCs)are an excellent potential source of cells for bone tissue engineering due to their excellent renewal ability and osteogenic differentiation *** study was designed to evaluate the bone formation properties of a demineralized cancellous bone scaffold seeded with MSCs,with or without periosteum,in a critical size bone defect model in ***:Rabbit culture-expanded bone marrow(BM)-MSCs were seeded onto a human demineralized cancellous bone(HDCB)*** defects measuring 15 mm in length were created in each radius.A total of 56 bone defects in 28 rabbits were randomly assigned to one of the 4 groups for scaffold implantation:Group 1:HDCB graft only;Group 2:periosteum-wrapped HDCB graft;Group 3:HDCB graft seeded with BM-MSCs and Group 4:periosteum-wrapped HDCB graft seeded with *** rabbits were sacrificed 12 weeks after surgery for gross observation,radiological assessment,histological analyses and biomechanical ***:New bone(NB)formation and bone healing were successfully achieved,both radiologically and histologically,on demineralized cancellous bone graft seeded with *** were improved when BM-MSCs were associated with ***:This study demonstrates that repair of bone defects in a rabbit model can be achieved through bone grafting using BM-MSCs,implanted on a demineralized cancellous bone *** formation of NB was optimized when combined with the preservation of periosteum at the site of injury.

关键词： Bone defects bone marrow bone tissue engineering mesenchymal stem cells periosteum

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越南竹林禅派寺院园林研究

越南竹林禅派寺院园林研究

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作者：阮登情（nguyen dang Tinh）西南大学

学位级别：硕士

佛教自从印度和中国传入越南后,作为越南宗教派别之一,在其生根成长的过程中完成了与传统文化的碰撞和融合,形成了与印度佛学理义迥异的越南化佛教,对越南文化的各个方面产生了深刻而持久的影响。越南佛教竹林禅派是越南“禅”和中国“... 详细信息

佛教自从印度和中国传入越南后,作为越南宗教派别之一,在其生根成长的过程中完成了与传统文化的碰撞和融合,形成了与印度佛学理义迥异的越南化佛教,对越南文化的各个方面产生了深刻而持久的影响。越南佛教竹林禅派是越南“禅”和中国“禅”再加上越南社会与文化背景在漫长的时间内酝酿,发展而形成的结果。竹林禅派,对越南传统文化具有深远而持久的影响,尤其是在园林,建筑,哲学,美学等方面留下了深深的佛学烙印。竹林禅派寺院园林(Truc Lam Zen Monastery gardens),亦即佛寺的附属园林。主要包括寺院内部庭院和外围地段的园林绿化环境,也可泛指那些为宗教信仰和意识崇拜服务的建筑群所附设的园林。这些寺院园林有大有小,遍布在越南的城乡各地,受地理位置、气候条件及当地风土人情等方面的因素影响,形成各自的特色。本文以竹林禅宗寺院园林的发展为主线,从继承,发展,保护与创新的观点出发,通过对竹林禅派典型的寺院园林的调查,对其主要特征,造园理念,总体布局,建筑特色,植物景观,叠石理水等方面进行了深入的研究。一方面是对竹林禅派寺院园林景观特色的归纳,总结,同时也可为越南现代园林设计提供一定的借鉴和参考,达到古为今用的目的。

关键词：佛教竹林禅派寺院园林

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Nutritional status of Vietnamese infants assessed by Fenton growth chart and related factors:A cross-sectional study

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Pediatric Investigation 2023年第4期7卷 254-262页

作者： Lieu Thu Thi nguyen Cuong Danh Tran Ha Thu Thi nguyen Hai Thanh Phan Linh Thuy nguyen Huong Lan Thi nguyen Anh Hoai Thi Ta Chau Quynh Thi Pho Khanh Nam Do Anh Kim dang Huong Thi Le School of Preventive Medicine and Public Health Hanoi Medical UniversityHanoiVietnam Department of Nutrition National Hospital of Obstetrics and GynecologyHanoiVietnam Department of General Obstetrics National Hospital of Obstetrics and GynecologyHanoiVietnam Department of Nutrition and Dietetics Hanoi Medical University HospitalHanoiVietnam Queensland Alliance for Environmental Health Sciences(QAEHS) The University of QueenslandBrisbaneAustralia

Importance:Nutritional status of infants,measured by birth weight and length,is an essential factor in neonatal *** in newborns may lead to a higher risk of mortality,neurological and cognitive impairment,and poor language ***:This study aims to assess the nutritional status of infants and related factors regarding maternal anthropometric characteristics and medical ***:A cross-sectional study was conducted at the National Hospital of Obstetrics and Gynecology,Vietnam from May 2021 to May 2022 on 340 infants and *** birth weight was defined following the Intergrowth-21 *** was evaluated using the Fenton growth chart when the length was below the 10%percentile line of the gestational *** regression models were applied to identify factors associated with the nutritional status of ***:We found that 12.4%and 14.1%of infants in our study fell into stunted and underweight categories,*** of mothers over 35 years old,having a height lower than 150 cm or experiencing anemia during pregnancy were more likely to be stunted or have low birth *** albumin deficiency during pregnancy was strongly associated with the infant being underweight(odds ratio[OR]=2.8,95%confidence interval[95%CI]1.1–7.3).Newborns were more likely to be stunted if their mothers had a history of preterm birth(OR=3.3,95%CI 1.1–10.2).Interpretation:Maternal nutritional status is closely related to infant malnutrition,particularly in preterm *** the understanding of mothers regarding prenatal care,reproductive healthcare,adequate nutritional diet,and multi-micronutrient supplements during pregnancy is therefore important.

关键词： Fenton chart Infant Low birth weight Stunting Underweight

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Luminescent and magnetic properties of multifunctional europium(Ⅲ) complex based nanocomposite

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Journal of Rare Earths 2019年第11期37卷 1237-1241页

作者： Hoang Thi Khuyen nguyen Thanh Huong Tran Thu Huong Pham Thi Lien Do Thi Anh Thu nguyen Thi Anh Huong Wieslaw Strek Le Quoc Minh Institute of Materials Science Vietnam Academy of Science and Technology18 Hoang Quoc VietCau CiayHanoiViet Nam Graduate University of Science and Technology Vietnam Academy of Science and Technology18 Hoang Quoc VietCau GiayHanoiViet Nam Department of Chemistry University of Natural SciencesHanoi National University19 Le Thanh TongHoan KiemHanoiViet Nam Institute of Low Temperature and Structure Research PASOkolna 2Wroclaw 50-422Poland Duy Tan University K7/25 Quang TrungDa DangViet Nam

The luminescent rare earth(RE)complex based multifunctional nanocomposites offer new potential applications of multimodal imaging(magnetic resonance imaging(MRI),fluorescent bioimaging,etc.)that can be associated with therapeutic *** this study,we report some results obtained with novel multifunctional Fe3O4/Si-amine/Eu(NTA)3 nanocomposites that are composed of europium(Ⅲ)complex with 1-(2-naphthoyl)-3,3,3-trifluoroacetone ligands(NTA)(Eu(NTA)3)and superparamagnetic Fe3O4 *** nanocomposites were functionalized with an amine group for biomedicine *** multifunctional Fe3O4/Si-amine/Eu(NTA)3 nanocomposites exhibit both good magnetic behavior of Fe3O4 nanoparticles as a core and strong fluorescent property of europium(Ⅲ)*** characterizations were analyzed by XRD,SEM,EDX and FTIR *** optical properties were studied in detail by UV-VIS spectra and luminescent emission *** magnetic property was estimated by *** effect of concentrations of luminescent Eu(NTA)3 complex on luminescent and magnetic properties is discussed.

关键词： Multifunctional nanocomposite Luminescence Magnetic Europium(Ⅲ)complex Fe3O4 Rare earths

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对越南河内市法式街区的保护

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人类环境杂志 1996年第2期25卷 114-116页

作者： nguyen Ba dang 寒江 Director of Architectural Reseach Center Architecture Research Center Ministry of Construction 9th Km nguyen Trai Thanh Xuan Hanoi Vietnam

河内市的设立已有很长时间了。1010年,李氏王朝将越南的首都迁往河内,从此,尽管经历了诸多历史变迁,河内至今仍是全国的政治、社会、经济、科学和技术中心。河内的城市建筑遗产包括:古城堡、老城区(36条19世纪的街道)、法式街区(建于188... 详细信息

河内市的设立已有很长时间了。1010年,李氏王朝将越南的首都迁往河内,从此,尽管经历了诸多历史变迁,河内至今仍是全国的政治、社会、经济、科学和技术中心。河内的城市建筑遗产包括:古城堡、老城区(36条19世纪的街道)、法式街区(建于1888～1954年法国殖民统治时期)、古建筑群(寺庙、殿堂、宝塔等)。无论本地人还是外地人,专家还是非专家,都认为古建筑精华和古建筑群是珍贵的,值得大力保护。目前,河内因建于法国殖民时期的美丽的住宅区而吸引着越来越多的游客。

关键词：越南河内市法式街区保护

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Green synthesis of three-dimensional magnesium ferrite/titanium dioxide/reduced graphene from Garcinia mangostana extract for crystal violet photodegradation and antibacterial activity

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Journal of Semiconductors 2023年第12期44卷 111-124页

作者： Tong Hoang Lin Che Quang Cong nguyen Thanh Hoai Nam Hoang An nguyen Duy Hai Ton That Buu Thoi Le Nhat Binh Hoang Le Minh Lam Thanh Ngan Hoang Thuy Kim Ngan Du Chi Vi Ta dang Khoa nguyen Huu Hieu VNU-HCM Key Laboratory of Chemical Engineering and Petroleum Processing(Key CEPP Lab)Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam Faculty of Chemical Engineering Ho Chi Minh City University of Technology(HCMUT)268 Ly Thuong Kiet StreetDistrict 10Ho Chi Minh CityVietnam Vietnam National University Ho Chi Minh City(VNU-HCM) Linh Trung WardThu Duc CityVietnam

In this study,three-dimensional porous magnesium ferrite/titanium dioxide/reduced graphene oxide(Mg Fe_2O_(4)-GM/TiO_(2)/rGO(MGTG))was successfully synthesized via green and hydrothermal-supported co-precipitation methods using the extract of Garcinia mangostana(***)as a reducing *** characterization results indicate the successful formation of the nano/micro Mg Fe_(2)O_(4)(MFO)and TiO_(2) on the structure of the reduced graphene oxide(rGO),which can also act as efficient support,alleviating the agglomeration of the nano/micro MFO and TiO_(2).The synergic effects of the adsorption and photodegradation activity of the material were investigated according to the removal of crystal violet(CV)under ultraviolet *** effects of catalyst dosage,CV concentration,and p H on the CV removal efficiency of the MGTG were also *** to the results,the CV photodegradation of the MGTG-200 corresponded to the pseudo-first-order kinetic *** reusability of the material after 10 cycles also showed a removal efficiency of 92%.This happened because the materials can easily be recollected using external *** addition,according to the effects of different free radicals·O_(2)^(-),h^(+),and·OH on the photodegradation process,the photocatalysis mechanism of the MGTG was also thoroughly *** antibacterial efficiency of the MGTG was also evaluated according to the inhibition of the Gram-positive bacteria strain Staphylococcus aureus(***).Concurrently,the antibacterial mechanism of the fabricated material was also *** results confirm that the prepared material can be potentially employed in a wide range of applications,including wastewater treatment and antibacterial activity.

关键词： magnesium ferrite titanium dioxide reduced graphene oxide Garcinia mangostana photodegradation antibacterial

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Influence of Chitosan Binder on the Adhesion of Silver Nanoparticles on Cotton Fabric and Evaluation of Antibacterial Activity

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Advances in Nanoparticles 2015年第4期4卷 98-106页

作者： nguyen Quoc Hien dang Van Phu nguyen Ngoc Duy Le Anh Quoc nguyen T. Kim Lan Hoang T. Dong Quy Huynh T. Hong Van Phan Ha Nu Diem Tran Thai Hoa Research and Development Center for Radiation Technology Vietnam Atomic Energy Institute Ho Chi Minh City Vietnam University of Science Vietnam National University in Ho Chi Minh City Ho Chi Minh City Vietnam College of Science Hue University Hue City Vietnam

Colloidal silver nanoparticles (AgNPs) with particle size less than 10 nm and concentration of 2 mM/L (~200 mg/L) were synthesized by gamma Co-60 ray irradiation of Ag+/chitosan solutions with different chitosan concentration of 0.5%, 1% and 2% (w/v). Incorporation of AgNPs onto cotton fabric was carried out by padding method with 100% wet pick-up. The content of AgNPs deposited on cotton fabric and released from cotton fabric after repeated washing was determined by inductively couple plasma-atomic emission spectroscopy (ICP-AES). The results indicated that cotton/AgNPs fabric made from padding into AgNPs solution with 0.5% - 1% chitosan was the best one of AgNPs adhesion ability on cotton fabric. Results on antibacterial activity against S. aureus showed that cotton/AgNPs fabric with AgNPs content more than 100 mg/kg exhibited highly antibacterial activity (η > 98%). The mechanical property (tensile strength and elongation) of cotton/AgNPs fabrics was almost unchanged in comparison with untreated cotton fabric. Thus, the resultant cotton/AgNPs fabric with highly antibacterial activity can be potentially used as bed drapes and/or patient uniforms in hospitals, etc.

关键词： Gamma Co-60 Ray Silver Nanoparticles Chitosan Cotton Fabric Antibacterial

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恒载及往复荷载作用下三维钢框架塑性优化:优化公式

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钢结构(中英文) 2010年第6期 86-87页

作者： Hoang Van Longand nguyen dang Hung

提出了恒载(限制优化)或往复荷载(倒塌优化)作用下三维钢框架的塑性优化的一种新算法。在塑性倒塌(瞬时力学或交替塑性)的基础上,使钢框架的重量最小。16面体采用了考虑两种弯矩和轴力的三维塑性铰。基于有限分析的静态原则,通过单形法... 详细信息

提出了恒载(限制优化)或往复荷载(倒塌优化)作用下三维钢框架的塑性优化的一种新算法。在塑性倒塌(瞬时力学或交替塑性)的基础上,使钢框架的重量最小。16面体采用了考虑两种弯矩和轴力的三维塑性铰。基于有限分析的静态原则,通过单形法求解线性规划问题,从而推导出公式。提出了一些有益于优化问题的方法,并通过算例表明了所提算法的效率。

关键词：限制优化倒塌优化塑性铰空间框架线性规划

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越南汉语初级阶段学生习得汉语时间副词偏误分析及教学对策研究

越南汉语初级阶段学生习得汉语时间副词偏误分析及教学对策研究

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作者：阮邓垂翎（nguyen dang Thuy Linh）大连外国语大学

学位级别：硕士

外语对学生来说是一门非常难学的科目,尤其是语法方面更难。汉语时间副词数量较多,汉语时间副词与越南语对应词有相似之处也有不同之处。因此,处于越南汉语初级阶段的学生在习得汉语时间副词时难以把握其知识点,并在使用的过程中容易产... 详细信息

外语对学生来说是一门非常难学的科目,尤其是语法方面更难。汉语时间副词数量较多,汉语时间副词与越南语对应词有相似之处也有不同之处。因此,处于越南汉语初级阶段的学生在习得汉语时间副词时难以把握其知识点,并在使用的过程中容易产生偏误,成为一道难题。因此本研究采用问卷调查法、对比分析访谈法、偏误分析法等,对越南汉语初级阶段学生习得汉语时间副词情况展开研究分析。同时提出针对性的教学对策,为提高越南学生的汉语能力贡献一份绵薄之力。本文绪论主要阐述了论文的研究缘起、文献综述、研究方法和语料来源。第一章概况汉语时间副词和越南语时间副词的特征和概念,分析汉语和越南语时间副词的概念、分类以及汉语时间副词的语法功能。第二章对13个汉语时间副词“先”、“刚”、“正”、“在”、“正在”、“就”、“一直”、“已经”、“才”、“快”、“马上”、“曾经”、“立即”与越南语对应词进行对比,找出它们之间的异同点。第三章从越南汉语初级阶段学生习得13个汉语时间副词的实际情况出发,调查越南汉语初级阶段学生使用13个汉语时间副词偏误情况。第四章指出导致这些偏误的原因,包括客观因素和主观因素。第五章基于这些原因,提出了适当的纠正建议,以克服越南汉语初级阶段学生习得汉语时间副词的偏误。

关键词：初级汉语阶段越南学生汉语时间副词习得偏误分析教学对策

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Predicting Βeta-Turns and Βeta-Turn Types Using a Novel Over-Sampling Approach

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Journal of Biomedical Science and Engineering 2014年第11期7卷 927-940页

作者： Lan Anh T. nguyen Xuan Tho dang Tu Kien T. Le Thammakorn Saethang Vu Anh Tran Duc Luu Ngo Sergey Gavrilov Ngoc Giang nguyen Mamoru Kubo Yoichi Yamada Kenji Satou Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan Department of Computer Science Hue University of Education Hue Vietnam Institute of Science and Engineering Kanazawa University Kanazawa Japan

β-turn is one of the most important reverse turns because of its role in protein folding. Many computational methods have been studied for predicting β-turns and β-turn types. However, due to the imbalanced dataset, the performance is still inadequate. In this study, we proposed a novel over-sampling technique FOST to deal with the class-imbalance problem. Experimental results on three standard benchmark datasets showed that our method is comparable with state-of-the-art methods. In addition, we applied our algorithm to five benchmark datasets from UCI Machine Learning Repository and achieved significant improvement in G-mean and Sensitivity. It means that our method is also effective for various imbalanced data other than β-turns and β-turn types.

关键词： Beta-Turns Beta-Turn Types Class-Imbalance Over-Sampling

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