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应用AccuMap多焦视觉诱发电位客观视野检测法观察晶状体混浊对青光眼视野检测结果的影响

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中华眼科杂志 2006年第11期42卷 972-976页

作者：才瑜 LIM Boon Ang chi luu POR Yongming OEN Francis 晏晓明 CHEW Paul SEAH Steve 北京大学第一医院眼科 100034 Department of Ophthalmology Tan Tock Seng Hospital Singapore Eye Research Institute Singapore National Eye Centre Department of Ophthalmology National University Hospital

目的探讨AccuMap多焦视觉诱发电位客观视野检测法观察晶状体混浊对青光眼视野检测结果的影响及与Humphrey自动视野检测结果之间的相关性。方法观察和比较原发性青光眼伴有中等程度晶状体混浊患者白内障术前后AccuMap与Humphrey视野计检... 详细信息

目的探讨AccuMap多焦视觉诱发电位客观视野检测法观察晶状体混浊对青光眼视野检测结果的影响及与Humphrey自动视野检测结果之间的相关性。方法观察和比较原发性青光眼伴有中等程度晶状体混浊患者白内障术前后AccuMap与Humphrey视野计检测结果。术前由同一位有经验的眼科医师观察并记录(采用LOCSⅢ标准)患者晶状体的混浊程度。结果符合入选标准并完成观察者共22例。(1)AccuMap视野检测平均振幅术前为(308.0±96.6)nV,术后为(382.6±146.7)nV,术前与术后平均振幅差异有统计学意义(P=0.01)。平均视野损害严重程度指数(accumapseverityindex,ASI)术前为90.0±54.8,术后为48.6±42.4,术后比术前ASI显著下降(P<0.001)。潜伏期术前后无明显变化,术前平均为(1207.5±67.7)ms,术后为(1191.2±61.9)ms(P=0.289)。(2)晶状体混浊程度与AccuMap振幅的变化AccuMap振幅的变化与晶状体混浊程度无明显相关性(Spearman秩相关分析,P=0.09)。(3)Humphrey视野计检测结果术前平均偏差(meandeviation,MD)为-12.2±7.8,术后为-9.6±8.8,术后与术前MD差异有统计学意义(P<0.001);而模式标准差(patternstandarddeviation,PSD)术前为6.5±3.2,术后为6.3±4.0,差异无统计学意义(P=0.748)。(4)ASI与MD比较术前、术后ASI分别与MD具有相关性(Pearson相关分析,术前P=0.013,术后P<0.001);且术后与术前ASI的变化与MD的变化也具有相关性(Pearson相关分析,P=0.017)。结论AccuMap视野检测法显示晶状体混浊影响青光眼患者的视野检测结果,其中振幅受影响更明显。与Humphrey视野检测结果比较,AccuMap检测的ASI与MD具有相关性。(中华眼科杂志,2006,42972-976)

关键词：视野检查法诱发电位,视觉青光眼白内障

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电渗析技术处理橡胶促进剂废水研究

化学工业与工程 2023年第3期40卷 41-47页

作者：迟璐璐赵涵王科强曹传鹏解利昕天津大学化工学院天津300350 天津市膜科学与海水淡化技术重点实验室天津300350

采用电渗析技术处理橡胶促进剂废水并进行盐和有机物分离研究,探究淡浓室体积比、淡室进水电导、电压、流量和温度等因素对电渗析分离效果和操作性能的影响。实验结果表明,增大淡室进水电导、电压、流量和温度,均可以提高传质速率,其中... 详细信息

采用电渗析技术处理橡胶促进剂废水并进行盐和有机物分离研究,探究淡浓室体积比、淡室进水电导、电压、流量和温度等因素对电渗析分离效果和操作性能的影响。实验结果表明,增大淡室进水电导、电压、流量和温度,均可以提高传质速率,其中电压和温度对传质速率的影响较为明显。增大淡室进水电导、流量、温度,减小电压,可以提高电流效率、降低能耗。在实验条件下,淡室废水电导率降低到10 mS·cm^(-1)以下,淡室COD含量为4 940 mg·L^(-1),有效实现了盐和有机物的分离,满足了生化处理要求,为橡胶促进剂废水处理提供了新的思路。

关键词：电渗析橡胶促进剂废水脱盐有机物

应用AccuMap多焦视觉诱发电位客观视野检查法观察白内障对青光眼视野影响的研究

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应用AccuMap多焦视觉诱发电位客观视野检查法观察白内障对青光眼...

Fabrication and Characterization of Multi-layer Heat Mirror with Photocatalytic Properties

第三届全球华人眼科学术大会暨中华医学会第十一届全国眼科学术大会

作者：才瑜 LIM Boon Ang chi luu POR Yongming OEN Francis 晏晓明 CHEW Paul SEAH Steve 北京大学第一医院眼科

目的:本研究应用AccuMap多焦视觉诱发电位客观视野检查法,探讨白内障对青光眼视野的影响,并比较与Hum- phrey自动视野检查结果之间的相关性。方法:本研究前瞻性观察原发性青光眼并伴有中等程度白内障患者,在白内障术前和术后AccuMap和Hu...

目的:本研究应用AccuMap多焦视觉诱发电位客观视野检查法,探讨白内障对青光眼视野的影响,并比较与Hum- phrey自动视野检查结果之间的相关性。方法:本研究前瞻性观察原发性青光眼并伴有中等程度白内障患者,在白内障术前和术后AccuMap和Humphrey视野的改变。晶状体的混浊程度在术前由同一名有经验的眼科医师观察并记录(采

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chinese Physics Letters 2009年第11期26卷 152-155页

作者： Tran Le Tuan Tran Huu chi Nguyen Dac Ngoc Son luu Minh Nam Hoang Dinh Quan Nguyen Department of Applied Physics College of Natural Science National University of He Chi Mirth City 227 Nguyen Van Cu District 5 Ward 4 He Chi Minh City Vietnam Department of Chemical Engineering College of Technology National University of He Chi Minh City 168 Ly Thuong Kiet District 10 Ho chi Minh City Vietnam

A novel TiO2（5）/TiO2（buffer）/Ti（4）/Ag（3）/Ti（2）/TiO2（1） multi-layer film coating with corning glass is designed and fabricated by a dc magnetron sputtering method as a renovation of the well-known TiO2/Ti/Ag/Ti/TiO2 system in order to obtain a heat mirror system with photocatalytic properties due to sufficient thickness of the Ti02 layer. The outer TiO2 layer is fabricated in two steps, possibly claimed as two layers TiO2（5） and TiO2（buuer）, among which TiO2（buffer） the 70-nm-thick layer deposited in poor oxygen effectively minimizes the oxidation toward its neighbor Ti（4） layer. The optimal total thickness of the TiO2（5） and TiO（buffer） di-layer is found to be 300nm to yield a highly photo-catalytic property of the film without affecting the optical properties considerably. This multi-layer film can transmit light of above 75-85% in the visible spectrum （380 ≤ λ≤ 760 nm） and reflect radiation of above 90% in the infrared spectrum （ λ≥760 nm）. Such multi-layer coatings are strongly recommended not only as promising transparent heat mirrors but also as photo-catalytic films for architectural window coatings.

关键词： Condensed matter: electrical magnetic and optical Surfaces interfaces and thin films Chemical physics and physical chemistry

Exploring the Interplay between Job Stress,Work Performance,and Attitudes toward Professional Psychological Help among Employees

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International Journal of Mental Health Promotion 2024年第7期26卷 531-545页

作者： Cong Minh Le Son Van Huynh Ky luu Quynh-Nhi Ngoc Ho Van Thi Le Nguyen Vinh-Long Tran-chi Center for Mental Health Research and Support University of Social Sciences and HumanitiesVietnam National University Ho Chi Minh CityHo Chi Minh City700000Vietnam Faculty of Psychology Ho Chi Minh City University of EducationHo Chi Minh City700000Vietnam Faculty of Tourism College of BusinessUniversity of Economics Ho Chi Minh CityHo Chi Minh City700000Vietnam Scientific Management Department Dong A UniversityDa Nang500000Vietnam

Objective:This study explores the interplay between job stress,job-related factors,work performance,and attitudes toward seeking professional psychological help among Vietnamese ***:A total of 374 employees in Vietnam were surveyed using random sampling and an online questionnaire from November 07 to November 28,*** data and self-reported from three scales:The New Job Stress Scale(NJSS),Work Performance(WP),and Attitudes Toward Seeking Professional Psychological Help(ATSPPH_SF)were ***:Significant variations were found across several variables,including forms of work,operating hours,education levels,monthly income,numbers of daily working hours,and the presence of a psychological counseling department within the *** analysis has highlighted direct relationships between key latent *** who were more open to seeking professional help tended to report higher levels of job *** negative relationship was found between job stress and attitudes toward seeking professional ***,work effort was positively associated with work *** analyses revealed the influence of co-worker support on role expectation conflict and work effort,role expectation conflict and work-life balance,as well as interactions between role expectation conflict and attitudes needed toward seeking professional *** analyses showed that work effort mediated relationships between openness to seeking professional help,co-worker support,work-life balance,role expectation conflict,and work *** toward seeking professional help also mediated relationships between work-life balance,job stress,and work ***:The study highlights the complex dynamics surrounding job stress,job-related factors,work performance,and attitudes toward seeking professional psychological help among Vietnamese *** highlights the importance of addressing help-seeking barriers,promoting work engagement

关键词： Stress co-worker support work-life balance role expectation conﬂict professional psychological help-seeking

Microcystin accumulation and biochemical responses in the edible clam Corbicula leana P. exposed to cyanobacterial crude extract

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Journal of Environmental Sciences 2016年第6期28卷 120-130页

作者： Thanh-luu Pham Kazuya Shimizu Ayako Kanazawa Yu Gao Thanh-Son Dao Motoo Utsumi Graduate School of Life and Environmental Sciences University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305-8572 Japan Faculty of Life Sciences Toyo University Ora-gun Gunma 374-0193 Japan College of Chemical and Environmental Engineering Shandong University of Science and Technology qingdao 266590 China Ho chi Minh City University of Technology 268 Ly Thuon9 Kiet St. Dist. 10 Ho Chi Mirth City Viet Nam Vietnam Academy of Science and Technology （VAST) Institute of Tropical Biology 85 Tran Quoc Toan St. Dist. 3 Ho Chi Minh City Viet Nam

We investigated the accumulation and effects of cyanobacterial crude extract（CCE）containing microcystins（MCs） on the edible clam Corbicula leana P. Toxic effects were evaluated through the activity of antioxidant and detoxification enzymes： catalase（CAT）,superoxide dismutase（SOD）, and glutathione-S-transferases（GSTs） from gills, foot, mantle and remaining soft tissues. Clams were exposed to CCE containing 400 μg MC-LReq/L for10 days and were then kept in toxin-free water for 5 days. Clam accumulated MCs（up to 3.41 ± 0.63 μg/g dry weight（DW） of unbound MC and 0.31 ± 0.013 μg/g DW of covalently bound MC）. Detoxification and antioxidant enzymes in different organs responded differently to CCE during the experiment. The activity of SOD, CAT, and GST in the gills and mantle increased in MC-treated clams. In contrast, CAT and GST activity was significantly inhibited in the foot and mostly only slightly changed in the remaining tissues. The responses of biotransformation, antioxidant enzyme activity to CCE and the fast elimination of MCs during depuration help to explain how the clam can survive for long periods（over a week） during the decay of toxic cyanobacterial blooms in nature.

关键词： Bioaccumulation Cyanotoxins Covalently bound microcystins Aqueous extracts

Tail dependence in emerging ASEAN-6 equity markets: empirical evidence from quantitative approaches

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Financial Innovation 2020年第1期6卷 69-94页

作者： Duy Duong Toan luu Duc Huynh University of Economics Ho chi Minh CityVietnam School of Banking University of Economics Ho Chi Minh City59C Nguyen Dinh Chieu StreetDistrict 3Ho Chi Minh CityVietnam

This study contributes a rich set of quantitative methodologies including a nonparametric approach(chi-plots and K-plots)as well as copulas(traditional and timevarying with Student’s t-copulas)to the existing literature in terms of determining the dependence structure in ASEAN stock *** on the emerging ASEAN equity returns of six countries from January 2001 to December 2017,we found that Student’s t-copulas under time-varying approach is the most appropriate approach to explain these *** all research return pairs,the dependence between Vietnam and other ASEAN equity indices has the lowest ***,all couples show left-and right-tail dependence by each pair for pre-and postfinancial ***,diversification across these pairs of equity markets from ASEAN is still adequate for international investors,though it might trigger contagion risks.

关键词： ASEAN Stock indexes chi-plots K-plots T-copulas Time-varying copulas

Occurrence of microcystins in water,sediment,and aquatic animals in Dau Tieng Reservoir,Vietnam

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Journal of Oceanology and Limnology 2024年第6期42卷 1751-1763页

作者： Thanh luu PHAM Manh Ha BUI Tan Duc NGUYEN Thanh Son DAO Faculty of Environment and Labour Safety Ton Duc Thang UniversityHo Chi Minh City 700000Vietnam Faculty of Environment Saigon UniversityHo Chi Minh City 700000Vietnam Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention and Guangdong Provincial Key Laboratory of Marine BiotechnologyShantou UniversityShantou 515063China Faculty of Environment and Natural Resources Ho Chi Minh City University of Technology(HCMUT)Ho Chi Minh City 700000Vietnam Asian Center for Water Research(Centre Asiatique de Recherchesur l’Eau CARE)Ho Chi Minh City University of Technology(HCMUT)Vietnam National UniversityHo Chi Minh City 700000Vietnam

This study investigates the variations of microcystins(MCs)in water,cyanobacterial blooms,sediment,and aquatic organisms collected from the Dau Tieng Reservoir(DTR).*** liquid chromatography(HPLC)was employed to measure MC concentrations in various target *** indicate that Microcystis *** as the primary MC producer in the *** average concentrations of analyzed MCs in surface water ranged from 1.10 to 5.54μg/L,temporally and *** sediment,average concentrations varied from 0.15 to 1.13μg/g wet weight(WW)temporally and from 0.41 to 0.72μg/g WW *** were detected in different organs of fish species(Oreochromis *** Labiobarbus sp.)and in the entire soft tissues of bivalve(Corbicula sp.)and gastropod(Assiminea sp.).The highest observed MC concentration in July was 0.83±0.22μg/g WW in the intestines of fish Oreochromis *** presence of MCs in grass shrimp Palaemonetes *** observed solely in June,reaching a concentration of 0.28±0.19μg/g *** is the first report of MC accumulation in the grass shrimp Palaemonetes *** field *** the bivalve Corbicula sp.,the presence of analyzed MCs was consistent throughout the study period,except for March and September,with the highest concentrations in July at 0.77±0.1μg/g *** correlation analysis revealed significant positive correlations between MCs in water and sediment with MC concentrations in aquatic animals,indicating the potential transfer of MCs across different trophic *** estimated daily intake values for analyzed MCs indicate that fish collected from the DTR are considered safe for consumption,as long as only the edible organs,such as the muscle,are ***,bivalves or gastropods collected from the DTR are not safe for human *** study underscored the importance of monitoring MC accumulation in aquatic animals used as food to mitigate adverse effects on human health.

关键词： aquatic animal bioaccumulation cyanotoxin health risk toxic cyanobacteria

LiMn_2O_4/CNTs and LiNi_(0.5)Mn_(1.5)O_4/CNTs Nanocomposites as High-Performance Cathode Materials for Lithium-Ion Batteries

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Acta Metallurgica Sinica(English Letters) 2015年第1期28卷 122-128页

作者： Thang Van Le Ha Tran Nguyen Anh Tuan luu Man Van Tran Phung Loan My Le Faculty of Materials Technology Ho Chi Minh University of Technology 268 Ly Thuong Kiet Ward 14 District 10 Ho Chi Minh City Vietnam Department of Physical Chemistry University of Science VNUHCM 227 Nguyen Van Cu Street District 5 Ho Chi Minh CityVietnam

The demand of higher energy density and higher power capacity of lithium（Li）-ion secondary batteries has led to the search for electrode materials whose capacities and performance are better than those available today. Carbon nanotubes（CNTs）, with their unique properties such as 1D tubular structure, high electrical and thermal conductivities, and extremely large surface area, have been used as materials to prepare cathodes for Li-ion batteries. The structure and morphology of CNTs were analyzed by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, and transmission electron microscopy（TEM）. The functional groups on the purified CNT surface such as –COOH, –OH were characterized by Fourier Transform infrared spectroscopy. The electrode materials were fabricated from LiMn2O4（LMO）, doped spinel LiNi0.5Mn1.5O4, and purified CNTs via solid-state reaction. The structure and morphology of the electrode were characterized using XRD, SEM, and TEM. Finally, the efficiency of the electrode materials using CNTs was evaluated by cyclic voltammetry and electrochemical impedance spectroscopy.

关键词： Nanocomposites Carbon nanotubes(CNTs) Spinel materials Lithium-ion batteries(LIBs)