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Dynamic connectedness and network in the high moments of cryptocurrency,stock,and commodity markets

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Financial Innovation 2023年第1期9卷 2388-2427页

作者： Waqas Hanif Hee‑Un Ko Linh pham Sang Hoon Kang CEFAGE‑Center for Advanced Studies in Management and Economics University of AlgarveFaroPortugal Department of Management Sciences COMSATS University IslamabadAttock CampusAttockPakistan Korea Housing and Urban Guarantee Corporation BusanRepublic of Korea Economics Business and Finance DepartmentLake Forest CollegeLake ForestIL 60045USA PNU Business School Pusan National UniversityJangjeon2‑DongGeumjeong‑GuBusan 609‑735Republic of Korea

This study examines the connectedness in high-order moments between cryptocurrency,major stock(U.S.,U.K.,Eurozone,and Japan),and commodity(gold and oil)*** intraday data from 2020 to 2022 and the time and frequency connectedness models of Diebold and Yilmaz(Int J Forecast 28(1):57–66,2012)and Barunik and Křehlik(J Financ Econom 16(2):271–296,2018),we investigate spillovers among the markets in realized volatility,the jump component of realized volatility,realized skewness,and realized *** higher-order moments allow us to identify the unique characteristics of financial returns,such as asymmetry and fat tails,thereby capturing various market risks such as downside risk and tail *** results show that the cryptocurrency,stock,and commodity markets are highly connected in terms of volatility and in the jump component of volatility,while their connectedness in skewness and kurtosis is ***,jump and volatility connectedness are more persistent than that of skewness and kurtosis *** rolling-window analysis of the connectedness models shows that connectedness varies over time across all moments,and tends to increase during periods of high ***,we show the potential of gold and oil as hedging and safe-haven investments for other markets given that they are the least connected to other markets across all moments and investment *** findings provide useful information for designing effective portfolio management and cryptocurrency regulations.

关键词： Spillovers High moments High frequency Hedging

Helicobacter pylori and interleukin-8 in gastric cancer

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World Journal of Gastroenterology 2013年第45期19卷 8192-8202页

作者： Ko Eun Lee pham ngoc Khoi Yong Xia Jung Sun Park Young Eun Joo Kyung Keun Kim Seok Yong Choi Young Do Jung Research Institute of Medical Sciences Chonnam National University Medical School Gwangju 501-190 South Korea

Helicobacter pylori(***)is a major etiological factor in the development of gastric ***-scale epidemiological studies have confirmed the strong association between *** infection and both cancer development and ***-8(IL-8)is overexpressed in gastric mucosa exposed to *** expression of IL-8 directly correlates with a poor prognosis in gastric ***-8 is *** addition to its potent chemotactic activity,it can induce proliferation and migration of cancer *** this review,we focus on recent insights into the mechanisms of IL-8 signaling associated with gastric *** relationship between IL-8 and *** is *** also summarize the current therapeutics against IL-8 in gastric cancer.

关键词： Helicobacter pylori Interleukin-8 Signals Gastric cancer Therapeutics

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锦鲤咖啡馆

现代装饰 2018年第4期 68-75页

作者： An Viet Dung An Thanh Nhan pham ngoc Linh Nguyen Thai Thach 彭佳 Farming Architects

项目旨在建造一个与锦鲤池相结合的咖啡馆空间。建筑共有三层,加上前院,面积约88平方米。业主希望设计师设计一个易于安装和移除的钢结构,此外,从天花板到家具,整个室内空间都由业主提供的回收的木板制作而成。咖啡馆使用了传统的Batran... 详细信息

项目旨在建造一个与锦鲤池相结合的咖啡馆空间。建筑共有三层,加上前院,面积约88平方米。业主希望设计师设计一个易于安装和移除的钢结构,此外,从天花板到家具,整个室内空间都由业主提供的回收的木板制作而成。咖啡馆使用了传统的Batrang双层瓦片作为建筑立面材料,给来客留下独特的第一印象。屋顶则像一层薄膜覆盖整个立面,使其在周围的建筑中显得格外醒目。

关键词：咖啡馆锦鲤建筑立面室内空间薄膜覆盖设计师钢结构天花板

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Facile synthesis of FeFe2O4 magnetic nanomaterial for removing methylene blue from aqueous solution

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Progress in Natural Science:Materials International 2019年第6期29卷 648-654页

作者： Van-Phuc Dinh ngoc Quyen Tran Nguyen-Que-Tran Le Quang-Huy Tran Trinh Duy Nguyen Gr EEN), Nguyen Tat Thanh University Van Tan Le Future Materials and Devices Laboratory Institute of Fundamental and Applied Sciences Duy Tan University Institute of Applied Materials Science VAST Graduate University of Science and Technology VAST Le Quy Don–LBT Highschool Bien Hoa City dong Nai province Center of Excellence for Green Energy and Environmental Nanomaterials (CE Industrial University of Ho Chi Minh City

A facile and simple chemical precipitation method was utilized to synthesize FeFe2O4magnetic nanomaterial for removing methylene blue（MB） from aqueous solution. Characterizations of this material were examined by using XRD, SEM, FT-IR, TGA-DTG and BET methods. Factors affecting the uptake of methylene blue, including p H, adsorption time, and MB initial concentration were also studied. The measured data were fitted by using four isotherm models including Langmuir, Freundlich, Sips and Temkin. Results showed that the Sips model offers the best fit to the data. In addition, the monolayer MB adsorption capacity obtained from the Langmuir model was 42.35 mg g-1under the optimal conditions of p H = 10 and adsorption time = 80 min. In particular, the uptake of MB onto FeFe2O4magnetic nanomaterial obtained from the kinetic and mechanism studies of the adsorption was in good agreement with prediction of the pseudo-first-order model, whereas the electrostatic interaction was found to play a primary mechanism.

关键词： FeFe2O4 magnetic nanomaterial Adsorption Methylene blue Adsorption mechanism

Is convenience really king? Comparative evaluation of catastrophic costs due to tuberculosis in the public and private healthcare sectors of Viet Nam: a longitudinal patient cost study

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贫困所致传染病(英文) 2024年第2期13卷 1-12页

作者： Nguyen Hoa Binh Quang Vo Luan Nguyen Forse Rachel Jeanette Wiemers Anja Maria Christine Huynh Huy Ba dong Thuy Thi Thu Phan Yen Thi Hoang Creswell Jacob Dang Thi Minh Ha Nguyen Lan Huu Shedrawy Jad L?nnroth Knut Nguyen Tuan Dinh Van Dinh Luong Annerstedt Kristi Sidney Codlin Andrew James National Lung Hospital Ha Noi Viet Nam Friends for International TB Relief Ha Noi Viet Nam Department of Global Public Health WHO Collaboration Centre On Tuberculosis and Social Medicine Karolinska Institute Stockholm Sweden Stop TB Partnership Geneva Switzerland pham ngoc Thach Hospital Ho Chi Minh City Viet Nam

Background In Viet Nam, tuberculosis (TB) represents a devastating life-event with an exorbitant price tag, partly due to lost income from daily directly observed therapy in public sector care. Thus, persons with TB may seek care in the private sector for its flexibility, convenience, and privacy. Our study aimed to measure income changes, costs and catastrophic cost incurrence among TB-affected households in the public and private *** Between October 2020 and March 2022, we conducted 110 longitudinal patient cost interviews, among 50 patients privately treated for TB and 60 TB patients treated by the National TB Program (NTP) in Ha Noi, Hai Phong and Ho Chi Minh City, Viet Nam. Using a local adaptation of the WHO TB patient cost survey tool, participants were interviewed during the intensive phase, continuation phase and post-treatment. We compared income levels, direct and indirect treatment costs, catastrophic costs using Wilcoxon rank-sum and chi-squared tests and associated risk factors between the two cohorts using multivariate *** The pre-treatment median monthly household income was significantly higher in the private sector versus NTP cohort (USD 868 vs USD 578;P=0.010). However, private sector treatment was also significantly costlier (USD 2075 vs USD 1313;P=0.005), driven by direct medical costs which were 4.6 times higher than costs reported by NTP participants (USD 754 vs USD 164;P<0.001). This resulted in no significant difference in catastrophic costs between the two cohorts (Private: 55% vs NTP: 52%;P=0.675). Factors associated with catastrophic cost included being a single-person household [adjusted odds ratio [(aOR=13.71; 95% confidence interval (CI): 1.36–138.14;P=0.026], unemployment during treatment (aOR=10.86; 95%CI: 2.64–44.60;P<0.001) and experiencing TB-related stigma (aOR=37.90; 95%CI: 1.72–831.73;P=0.021).Conclusions Persons with TB in Viet Nam face similarly high risk of catastrophic costs whether treated in the

关键词： Tuberculosis Patient cost Catastrophic cost Private sector Comparative analysis Viet Nam

Cultural Identities and Integration of the Hakkas in Buu Long （Bien Hoa, Vietnam） Through the Transformation of the Clan Worships

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International Relations and Diplomacy 2014年第4期2卷 271-279页

作者： Nguyen ngoc Tho Bach Thi Thu Hien University of Social Sciences and Humanities Vietnam National University Ho Chi Minh City Vietnam

East Asia during 17th to early 20th century witnessed many mass migration flows of South Chinese into Southeast Asia and other parts of the world, including Vietnam. They are the Cantonese, Hokkiens, Hainanese, Chiuchow Hoklo Clan, and Hakkas. Over the course of long history and with the impact of the natural environment and historical-social backgrounds of each country in Southeast Asia, the South Chinese communities have settled and created their livings under different forms. This long process includes the obvious ＂fossilization＂ of immigrant culture and the interesting cultural transformation to achieve harmonious and sustainable development. The Hakkas in Buu Long （Bien Hoa, dong Nai, and Vietnam） migrated from the Stone-Carfting Prefecture of Huiyang, Guangdong Province （South China） to live preferably in Buu Long granite mountain area to continue their traditional professions and maintain their migrant culture. They brought to Vietnam the cult of three Professional Masters： Gods of stone-crafting, carpenter, and Blacksmithing. However, under the strong impacts of French colonial policies and local social movement in the early 20th century, the Hakkas changed the form of the cult of three Professional Masters into the cult of Goddess Tian Hou in order to attain the full integration with the other Chinese communities and with the local Vietnamese, socially and economically. Throughout the cultural shift, both the continuity and the change have been proven as the inevitable way to balance two opposite poles： Cultural identities and social integration.

关键词： Hakkas cult three professional masters change Tian Hou cultural identities integration.

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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

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Effect of Combinations of Sucrose and Cryoprotectants on the Survival of Catfish Embryos （Pangasidae hypophthamus）

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Journal of Agricultural Science and Technology(B) 2013年第12期3卷 887-892页

作者： Nguyen Thi Hong Nguyen Thi Nhung Nguyen Thi Uoc Nguyen Trung Thanh Nguyen Thi Hiep Nguyen Van Hanh pham Van Khanh Ha Thi ngoc Nga Truong Van Thuong Bui Xuan Nguyen Department of Embryo Biotechnology Institute of Biotechnology Vietnam Academy of Science and Technology 18-Hoang QuocViet Hanoi 8404 Vietnam Department of Environment and Pathology Research Institute for Aquaculture No. 2 Cai Be Tien Giang 8473 Vietnam Research Institute for Aquaculture No. 1 Dinh Bang Tu Son Bac Ninh 84241 Vietnam

Although cryopreservation of embryos has been used in most terrestrial animals, the application of this technique has not been succeeded for aquatic animals. In this study, the authors investigate the effect of different combinations of sucrose （SUC, C12H22OH） and cryoprotectants （CPAs） on the survival of the catfish embryos （Pangasidae hypophthalmus） at low temperatures （4, 0 and -20 ℃） for short-term storage. For this aim, embryos with somites and optic cups were exposed to different combinations of sucrose with methanol （SUC ＋ MeOH）, 1.2-propylene glycol （SUC ＋ PROH） and ethylene glycol （SUC ＋ EG） at four concentrations ratios：（1） 0.5 M SUC ＋ 0.5 M CPA; （2） 1 M SUC ＋ 0.5 M CPA; （3） 0.5 M SUC ＋ 1 M CPA; （4） 1 M SUC ＋ 1 M CPA for 40 min at 4, 0 and -20 ℃. Embryos kept in water at room temperature （RT）, 4, 0 and -20℃ were used as controls. The survival rate was expressed as a percentage of hatched embryos per total embryos treated. The results showed that the hatching rate declined significantly when embryos were stored in water at 0 ℃ and -20℃. For embryos at 0 ℃ storage, the highest survival rate （87.78%） was obtained with 1 M SUC ＋ 1 M MeOH combination while at -20 ℃, only embryos in the combined treatments of 0.5 M SUC ＋ 1 MEG and 0.5 M SUC ＋ 1 M PROH reached the hatching stage （40% and 83.33%, respectively）. In conclusion, the results showed that the catfish embryos are sensitive to sub-zero temperatures and the combined treatment of 0.5 M sucrose and 1 M propylene glycol can be used to protect catfish embryos from damages caused by low temperature （0 ℃ and -20 ℃）.

关键词： Catfish cryoprotectants embryos low temperature sucrose.

Synthesis and characterization of NaYF4:Yb3+,Er3+@silica-N=folic acid nanocomplex for bioimaginable detecting MCF-7 breast cancer cells

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Journal of Rare Earths 2019年第11期37卷 1183-1187页

作者： Ha Thi Phuong Tran Thu Huong Le Thi Vinh Hoang Thi Khuyen Do Thi Thao Nguyen Thanh Huong pham Thi Lien Le Quoc Minh Institute of Materials Science Vietnam Academy of Science and Technology18 Hoang Quoc VietCau GiayHanoiViet Nam Graduate University of Science and Technology-Vietnam Academy of Science and Technology 18 Hoang Quoc VietCau GiayHanoiViet Nam Department of Chemistry Hanoi Medical University1-Ton That TungDong DaHanoiViet Nam Department of Chemistry Hanoi University of Mining and Geology18-Pho LienBac Tu LiemHanoiViet Nam Institute of Biotechnology Vietnam Academy of Science and Technology18-Hoang Quoc VietCau GiayHanoiViet Nam Duy Tan University K7/25 Quang TrungDa NangViet Nam

Upconversion nanophosphors are new promising nanomaterials to be used as biolabels for detection and imaging of cancer *** nanophosphors absorb long-wavelength excitation radiation in the infrared or near infrared region and emit shorter wavelength,higher energy radiation from ultraviolet to *** this paper,we studied the hydrothermal method and optical properties of the functionalized NaYF4:Yb^3+,Er^3+for biomedical *** synthesis,these NaYF4:Yb^3+,Er^3+nanophosphors were functionalized with aminosilanes and folic *** acid binds to the folate receptor on the surface of MCF-7 breast cancer cells and this binding promotes internalization of the nanophosphors via *** sizes of the functionalized NaYF4:Yb^3+,Er^3+@silica-N=FA(folic acid)nanophosphors can be controlled with length of the rod about 300-800 nm and diameter of the rod about 100-200 *** structure of NaYF4:Yb^3+,Er^3+is in hexagonal crystal *** photo luminescence(PL)spectra of the functionalized NaYF4:Yb^3+,Er^3+@silica-N=FA nanophosphors were *** nanophosphors emit in red color with the strongest band at 650 nm under 980 nm *** result can provide NaYF4:Er^3+,Yb^3+@silica-N=FA complex for developing fluorescence label and image tool in cancer biology and medicine.

关键词： Upconversion luminescence NaYF4:Yb^3+,Er^3+ Nanophosphors Bioimaging Cancer cell Rare earths

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