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do Occupational Factors Render Army Service a High-Leptospirosis-Risk Occupation?

Occupational diseases and Environmental Medicine 2020年第2期8卷 79-89页

作者： Siti Sara Y. Aziah B. d. Azwany Y. N. Mohd Nazri S. Zahiruddin W. M. Nabilah A. Siti Asma’ H. Zaliha I. Fairuz A. Public Health division Selangor State Health Department Ministry of Health Selangor Malaysia department of Community Medicine School of Medical Sciences Universiti Sains Malaysia Kelantan Malaysia department of Medical Microbiology & Parasitology School of Medical Sciences Universiti Sains Malaysia Kelantan Malaysia Population Health & Preventive Medicine discipline Faculty of Medicine Universiti Teknologi MARA Selangor Malaysia Institute for Medical Research (IMR) Kuala Lumpur Malaysia

Objective: Leptospirosis is a known zoonotic disease which is closely related to certain high-risk occupational group. This study aimed to identify the risk factors associated with seropositive leptospirosis among army personnel. Methodology: A cross sectional study was conducted involving 616 army personnel using a self-administered questionnaire. The questionnaire consisted of sociodemographic, occupational and environmental data as well as recreational activities history. Serum sample for leptospirosis was taken for screening with IgM Enzyme-linked Immunosorbent Assay (IgM ELISA) test. Positive tests were confirmed by Microscopic Agglutination Test (mat). Results: All respondents were male, Malays and married with the mean age of 29.28 (7.15) years old. The mean duration of working was 11.50 (7.75). Majority of the respondents were non-officer and riflemen, smokers (455 (73.9%), stayed inside the camp and engaged in recreational activities. The mean duration of employment was 11.50 (7.75) years. The overall seroprevalence of leptospirosis was 16.2% (95% CI: 13.32, 19.15) and the predominant pathogenic serovar identified was Terengganu (38.2%). Those who had lower educational levels were more protective for positive leptospirosis compared to those who have only primary education (OR: 0.32;95% CI: 0.14, 0.76;p = 0.009). Conclusion: despite being named as one of the high-risk occupations for leptospirosis, this study found no significant occupational factors related to leptospirosis seropositivity among army personnel.

关键词： Army Leptospirosis Seroprevalence Igm Enzyme-Linked Immunosorbent Assay (ELISA) Microscopic Agglutination Test (mat)

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母体体重与妊娠中期母体循环中游离胎儿dNA水平负相关

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世界核心医学期刊文摘（妇产科学分册） 2005年第9期1卷 48-49页

作者： Wataganara T. Peter I. Messerlian G.M. d.W. Bianchi 杨晓梅 division of Genetics Department of Pediatrics Tufts-New England Medical Center 750 Washin gton Street Boston MA 02111 United States Dr.

OBJECTIVE: Clinical applications of the analysis of cellfree fetal dNA in ma te rnal plasma and serum are expanding. However, use of fetal dNA during prenatal s creening requires knowledge of variables that might affect its levels in the mat ernal circulation. We conducted this study to estimate the effect of selected de mographic factors on fetal dNA levels in the first and second trimesters of preg nancy. METHOdS: We developed a database that included fetal dNA levels and clini cal information, such as maternal age, ethnicity, weight, and smoking history. W e measured fetal dNA levels in maternal plasma and serum using real-time quanti tative polymerase chain reaction amplification of a Y chromosome specific sequen ce. The fetal dNA data from fresh first trimester plasma and previously frozen s econd trimester serum samples were analyzed separately. Fetal dNA levels were ad justed according to gestational age and storage time and then analyzed in associ ation with the demographic factors. RESULTS: In the first trimester group, no si gnificant association between maternal age, weight, ethnic background, or smokin g and plasma fetal dNA lev els was observed. In the second trimester group, a significant inverse correla tion between maternal weight and serum fetal dNA level was demonstrated (r = -0 .26, P = .007). This was especially prominent when the mothers weighed more than 170 lb (P = .001). maternal age, ethnicity, and smoking were not significantly associated with the second trimester serum fetal dNA levels. CONCLUSION: Fetal d NA levels are affected by maternal weight in the second trimester. A correction for this effect may be needed in larger-scale studies or for future clinical ap plications that measure cell-free fetal nucleic acids in maternal circulation.

关键词：妊娠中期负相关 dNA 产前筛查妊娠早期血浆样本临床信息人口统计学储存时间联合分析

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CSM玻璃钢层间剪切断裂

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航空学报 1986年第2期 187-197页

作者：张双寅 Soden P.d Soden 中国科学院力学研究所曼彻斯特大学理工学院机械工程系曼彻斯特大学理工学院机械工程系

本文对CSM-GRP层间剪切断裂用实验与分析方法进行了研究。用英国标准BS4994规定的双槽试件拉剪法测量了层间剪切强度(ILSS)。用有限元法计算了应力分布、损伤扩展和复合型应力强度因子。并讨论了BS4994规定的这一试验方法的可靠性。

关键词：层间剪切试验结果剪切面复合型应力强度因子破坏准则试件 CSM 剪切强度抗剪强度力学强度拉剪裂纹扩展玻璃钢玻璃纤维增强塑料玻璃纤维增强复合材料

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An Overview of Non-Volatile Flip-Flops Based on Emerging Memory Technologies(Invited paper)

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Journal of Electronic Science and Technology 2014年第2期12卷 173-181页

作者： J.M.Portal M.Bocquet M.Moreau H.Aziza d.deleruyelle Y.Zhang W.Kang J.-O.Klein Y.-G.Zhang C.Chappert W.-S.Zhao Aix-Marseille University and Institut matériaux Microélectronique Nanosciences de Provence CNRS UMR7334MarseilleFrance Institut d’Electronique Fondamentale University Paris-Sud 11 and CNRS UMR8622Orsay 91405France Electronics and Information Engineering School Beihang University

Low power consumption is a major issue in nowadays electronics systems. This trend is pushed by the development of data center related to cloud services and soon to the Internet of Things （IoT） deployment. Memories are one of the major contributors to power consumption. However, the development of emerging memory technologies paves the way to low-power design, through the partial replacement of the dynamic random access memory （dRAM） with the non-volatile stand-alone memory in servers or with the embedded or distributed emerging non-volatile memory in IoT objects. In the latter case, non-volatile flip-flops （NVFFs） seem a promising candidate to replace the retention latch. Indeed, IoT objects present long sleep time and NVFFs offer to save data in registers with zero power when the application is idle. This paper gives an overview of NVFF architecture flavors for various emerging memory technologies.

关键词： Emerging memory technology ferroelectric RAM low power magnetic RAM non-volatile flip-flops phase change RAM resistive RAM

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早期RRMS灰质和白质体积改变的一项2年纵向研究

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世界核心医学期刊文摘（神经病学分册） 2005年第9期1卷 47-47页

作者： Tiberio M. Chard d.T. Altmann d.R.etal. d.H. Miller 周永 NMR Research Group Institute of Neurology Queen Square London WC1N 3BG United KingdomProf.

Background: Brain atrophy, in excess of that seen with normal aging, has been observed early in the clinical course of relapsing-remitting multiple sclerosis (RRMS). Previous work has suggested that at this stage of the disease, gray mat ter (GM) atrophy progresses more rapidly than the white matter (WM) atrophy. Obj ectives: To characterize the evolution of GM and WM volumes over 2 years, and th eir associations with lesion loads in a cohort of patients with clinically early RRMS. Methods: Twenty-one patients with RRMS (mean age 37.5 years, mean diseas e duration from symptom onset 2.1 years) and 10 healthy control subjects (mean a ge 37.1 years)-were studied. Tissue volumes, as fractions of total intracranial volumes, were estimated at baseline and 1-and 2-year follow-up. Brain parenc hymal fractions (BPF), GM fractions (GMF), and WM fractions (WMF) were estimated . In subjects with MS, brain lesion loads were determined on conventional T2-we ighted along with pre-and post-gadolinium (Gd) enhanced T1-weighted images at each timepoint. Results: A decrease in GMF was observed in subjects with MS vs normal controls over the 2 years of the study (mean -2.1%vs -1.0%, p=0.044), while no change was seen in WMF over the same period (mean -0.09%vs +0.09%, p=0.812). However, when the MS cohort was divided in half, dependent upon chang e in Gd-enhancing lesion load over 2 years (n=20), a decrease in WMF was seen i n the group (n=10) with the largest decline in Gd volume, whereas WMF increased in the other half (n=10) concurrent with a net increase in volume of Gd-enhanci ng lesions (difference between groups: p=0.034). Conclusions: Increasing gray ma tter but not white matter (WM) atrophy was observed early in the clinical course of relapsing-remitting multiple sclerosis. Fluctuations in inflammatory WM les ions appear to be related to volume changes in WM over this time period.

关键词：纵向研究 RRMS 临床病程加权成像正常老化脑萎缩加权和随访研究净增加

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Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China I:phytolith-based transfer functions

Phytoliths as quantitative indicators for the reconstruction...

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中国科学院地质与地球物理研究所2006学术年会

作者： Hou-Yuan Lu~(a,b,),Nai-Qin Wu~a,Xiang-dong Yang~c,Hui Jiang~(d,e),Kam-biu Liu~f,Tung-Sheng Liu~a a Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China b Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China c Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China d department of Earth Sciences,University of Aarhus,dK-8000 Aarhus C,denmark e Laboratory of Geographic Information Science,East China Normal University,200062 Shanghai,China f department of Geography and Anthropology,Louisiana State University,Baton Rouge,LA 70803,USA

This study investigated the distribution of phytolith assemblages in China from surface soil samples at 243 sites along significant ecological and climatic gradients to develop transfer functions for quantitative reconstruction of *** correspondence analysis(CCA) and detrended correspondence analysis(dCA) were used to determine the main environmental variables influencing phytolith *** results reveal that mean annual precipitation(MAP) is the dominant variable controlling the spatial distribution of phytoliths, which accounts for 39%of the total *** annual temperature(mat),relative humidity (Humi),and annual evaporation(VAP) are another three significant variables,accounting for 6%, 10%,and 5%respectively of the total variance in phytolith *** functions,based on WA-PLS(weighted averaging plus partial least squares),were developed for MAP(R= 0.90,root-mean-square-error of prediction(RMSEP)=148 mm),mat(R=0.84,RMSEP= 2.52℃),Humi(R=0.75,RMSEP=6.36%) and VAP(R=0.59,RMSEP=327 mm). Overall,our results confirm that phytoliths can provide reliable and robust estimates of MAP, mat,Humi and ***,WA-PLS is a robust calibration method for quantitative palaeoenvironmental reconstruction based on phytolith data.

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Modern pollen distributions in Qinghai-Tibetan Plateau and the development of transfer functions for reconstructing Holocene environmental changes

Modern pollen distributions in Qinghai-Tibetan Plateau and t...

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中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Houyuan Lu~(a,*),Naiqin Wu~a,Kam-biu Liu~b,Liping Zhu~c,Xiangdong Yang~d,Tandong Yao~c,Luo Wang~a, Quan Li~a,Xingqi Liu~d,Caiming Shen~e,Xiaoqiang Li~f,Guobang Tong~g,Hui Jiang~h aKey Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China b department of Oceanography and Coastal Sciences,Louisiana State University,Baton Rouge,LA 70803,USA cInstitute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China d State Key Laboratory of Lake Science and Environment,Nanjing Institute of Limnology and Geography,Chinese Academy of Sciences,Nanjing 210008,China e Atmospheric Sciences Research Center,State University of New York,Albany,NY 12203,USA f Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044,China g Institute of Hydrology and Geology,Chinese Academy of Geological Sciences,Zhengding 050803,China h State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China

This study investigates the distribution of modern pollen assemblages in the Qjnghai-Tibetan Plateau, China,based on surface soil samples collected at 1202 sites along an altitudinal gradient of 10 -5500 m asl,where mean annual precipitation(MAP) ranges from 12 to 1840 mm and mean annual temperature(mat) from -1 to 21.5℃.A total of 153 pollen taxa were found with relative abundances greater than 1%in at least two *** correspondence analysis(CCA) was used to determine the main environmental variables influencing pollen *** results reveal that MAP is the most significant dominant ***,mat,altitude(ALT),July temperature(MT7),and relative humidity(HHH) are also significant variables that clearly follow the gradients in the CCA ordination, suggesting that pollen assemblages probably not only reflect a single climatic parameter,but also a variety of other climatic inter-related parameters. Transfer functions,based on locally weighted weighted averaging(LWWA),were developed for MAP (R-boot = 0.89,RMSEP = 109 mm),mat(R-boot = *** = 2.3℃),ALT(R-boot = 0.73, RMSEP = 597 m),HHH(R-boot = 0.82,RMSEP = 4.5%),and July mean precipitation(MP7)(R- boot = 0.87,RMSEP = 23 ram).Overall,our results confirm that pollen can provide reliable estimates of the primary climatic *** application of the LWWA model to the fossil records of Chen Co Lake allowed quantitative inferences to be made about Holocene climatic changes in the southern Tibetan Plateau,suggesting that LWWA is a robust calibration method for quantitative palaeo-environ-mental reconstruction based on pollen data in the regions.

关键词： Qinghai-Tibetan plateau Vegetation Pollen Transfer functions Holocene Climatic changes

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叶缘-年均温中国模型在定量重建中国新生代植物群古年均温中的应用

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地质论评 2010年第5期56卷 638-646页

作者：苏涛星耀武 JACQUES Frederic M.B 陈文允黄永江刘裕生周浙昆中国科学院昆明植物研究所生物多样性与生物地理学重点实验室中国昆明650204 中国科学院研究生院中国北京100049 中国科学院南京地质古生物研究所古植物学与孢粉学研究室中国南京210008 美国东田纳西州大学生物科学系美国田纳西州约翰逊城37614-1710

叶缘分析法是一种利用现代植被木本双子叶植物全缘叶物种百分比与年均温的函数关系,定量重建化石植物群古年均温的方法。该方法在新生代植物群的古年均温定量重建研究中得到了广泛的应用。目前基于世界不同地区现代植被的研究表明,尽管... 详细信息

叶缘分析法是一种利用现代植被木本双子叶植物全缘叶物种百分比与年均温的函数关系,定量重建化石植物群古年均温的方法。该方法在新生代植物群的古年均温定量重建研究中得到了广泛的应用。目前基于世界不同地区现代植被的研究表明,尽管全缘叶物种百分比与年均温存在很好的相关性,但其相关性具有地区差异性。本文旨在总结叶缘分析法的研究进展,并介绍基于中国植被建立的叶缘—年均温中国模型;同时,采用该模型重建了中国新生代不同时期植物群的古年均温,且与前人采用其它模型得到的年均温重建值相比较。结果表明,叶缘—年均温中国模型能够有效地重建中国新生代植物群的古年均温值。

关键词：古植物群化石模型年均温新生代

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SYNTHESIS ANd CHARACTERIZATION OF PHENOTHIAZINE-BASEd PPV-TYPE COPOLYMERS CONTAINING FLUORENE ANd THIOPHENE MOIETIES

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Chinese Journal of Reactive Polymers 2005年第Z1期 28-34页

作者： WANG Chen1 LU Yan1 LIU Song1 YANG Liying1 YIN Shougen1 Silvia Janietz2 Hartmut Krueger2 Armin Wedel2 HUA Yulin1 1 Institute of material Physics, Tianjin University of Technology, Tianjin 300191, China 2 Fraunhofer Institute of Applied Polymer Research, Geiselbergstrasse 69, d-14476 Golm, Germany

Copolymers of fluorene-co-phenothiazine (P1) and thiophene-co-phenothiazine (P2) were prepared respectively by Wittig reaction. The synthesis, photo-physical and electroluminescent properties of the resulting polymers were analyzed by FT-IR, GPC, 1H-NMR, UV-Vis, Photoluminescence (PL), Electroluminescence (EL) and Cyclic Voltammetry (CV). Their single layer devices with configuration of ITOpolymersCaAl were studied. GPC results revealed the weight-average molecular weight (Mw) was 3.0×103 and 5.4×103, respectively. The device with a single layer structure of ITOP1CaAl emits green light with the maximum peak at 552nm. However, the device with a single layer structure of ITOP2CaAl emit red light with the maximum peak at 616nm.

关键词： Phenothiazine Fluorene Thiophene Wittig-reaction Electroluminescence.

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Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser

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matter and Radiation at Extremes 2024年第1期9卷 71-84页

作者： Josef Krása Tomás Burian Vera Hájková Jaromír Chalupský Šimon Jelínek Katerina Frantálová Michal Krupka Zuzana Kuglerová Sushil Kumar Singh Vojtech Vozda Ludek Vysín MichalŠmíd Pablo Perez-Martin Marion Kühlman Juan Pintor Jakub Cikhardt matthias dreimann dennis Eckermann Felix Rosenthal Sam M.Vinko Alessandro Forte Thomas Gawne Thomas Campbell Shenyuan Ren YuanFeng Shi Trevor Hutchinson Oliver Humphries Thomas Preston Mikako Makita Motoaki Nakatsutsumi Xiayun Pan Alexander Köhler Marion Harmand Sven Toleikis Katerina Falk Libor Juha department of Radiation and Chemical Physics Institute of PhysicsCzech Academy of SciencesNa Slovance 218221 Prague 8Czech Republic Laser Plasma department Institute of Plasma PhysicsCzech Academy of SciencesZa Slovankou 318200 Prague 8Czech Republic department of Surface and Plasma Science Faculty of Mathematics and PhysicsCharles University in PragueV Holesovi ckách 218000 Prague 8Czech Republic department of Physical Electronics Faculty of Nuclear Science and Engineering PhysicsCzech Technical University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Helmholtz-Zentrum dresden-Rossendorf Bautzner Landstraße 40001328 DresdenGermany dESY Photon Science Notkestraße 85D-22607 HamburgGermany Institut de Minéralogie de Physique des Matériaux et de CosmochimieUMR 7590–UPMC/CNRS/IRD/MNHNSorbonne Université4 place Jussieu75005 ParisFrance department of Physics Faculty of Electrical EngineeringCzech Technical University in PragueTechnická216627 Prague 6Czech Republic Center for Soft Nanoscience University of MünsterBusso-Peus-Straße 10D-48149 MünsterGermany department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUnited Kingdom Central Laser Facility STFC Rutherford Appleton LaboratoryDidcot OX110QXUnited Kingdom Lawrence Livermore National Laboratory 7000 East AvenueLivermoreCalifornia 94550USA European XFEL GmbH Holzkoppel 4D-22869 SchenefeldGermany Technische Universität dresden 01062 DresdenGermany

We report on an experiment performed at the FLASH2 free-electron laser(FEL)aimed at producing warm dense matter via soft x-ray isochoric *** the experiment,we focus on study of the ions emitted during the soft x-ray ablation process using time-of-flight electron multipliers and a shifted Maxwell–Boltzmann velocity distribution *** find that most emitted ions are thermal,but that some impurities chemisorbed on the target surface,such as protons,are accelerated by the electrostatic field created in the plasma by escaped *** morphology of the complex crater structure indicates the presence of several ion groups with varying *** find that the ion sound velocity is controlled by the ion temperature and show how the ion yield depends on the FEL radiation attenuation length in different materials.

关键词： electrostatic emitted chemi

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