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factors Associated with Hepatitis B Surface Antigen Seroprevalence amongst Pregnant Women in Kenya

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Open Journal of Obstetrics and Gynecology 2018年第5期8卷 456-467页

作者： Z. Gatheru f. Murila J. Mbuthia f. Okoth f. Kanyingi f. Mugo f. Esamai Z. Alavi J. Otieno H. Kiambati N. Wanjuki M. M. Obimbo Virus Research Center Kenya Medical Research Institute Nairobi Kenya Department of Human Anatomy Obstetrics and Gynecology University of Nairobi Nairobi Kenya Kenya Pediatrics Association Nairobi Kenya Ministry of Health Nairobi Kenya

Background: Knowledge of factors associated with seroprevalence of Hepatitis B in pregnancy is important in informing policies towards prevention of vertical transmission of Hepatitis B Virus (HBV) infection, since in-utero and perinatal infection lead to chronic carrier state with severe long-term sequela. In addition, adequate and timely immunization plays a major role in the prevention of transmission. Objective: To determine the factors associated with HBs Ag seroprevalence in pregnant women from various geographical regions in Kenya. Methods and Subjects: This was a cross-sectional survey amongst all pregnant women attending antenatal clinics in Kenyatta National Hospital and 8 other hospitals from different regions of Kenya in their third trimester of pregnancy among June 2001 to June 2002. for each pregnant woman, age, history of intravenous drug use, sexually transmitted disease (STD), liver diseases, alcohol intake, blood transfusion (BT) and presence of traditional scarification were documented. HBs Ag serology was assayed at the Kenya Medical Research Institute (KEMRI) laboratory. Results: A total of 2241 pregnant women were enrolled in the study, 2196 consented, of whom 205 (9.3%) tested positive for HBs Ag. A significant association was found between HBs Ag seroprevalence and traditional scarification (p = 0.029), history of blood transfusion (p = 0.0024) and alcohol intake (p = 0.05). There was no significant association between Hbs Ag seroprevalence and sexually transmitted disease (p = 0.64). It was not possible to evaluate the association of HBs Ag seroprevalence with history of hospitalization for any liver disease including Hepatitis A, B or C, history of intravenous drug use or contact with sex partners previously hospitalised for any liver disease including Hepatitis A, B or C as the numbers with these attributes were small. Conclusions: We found 9.3% of pregnant women were HBs Ag positive, significantly higher than previously observed. The high

关键词： Hepatitis B Seroprevalence Pregnancy Immunization Transmission

Changes in Myelinated Nerve fibers and Skeletal Muscle of Rats Exposed to High Doses of Permethrin

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Biomedical and Environmental Sciences 1990年第2期3卷 139-145页

作者： M.J.CAVALIERE M.Y.S.MAEDA L.W.S.SHIH f.R.PUGA Instituto and Instituto Biológico Caixa Postal 711901000 Sào Paulo Brazil

Neurological signs and segmcntal demyelination in a cervical nerve were observed in rats treated orally with permethrin (300 mg/kg/day) for 5 days. Inflammatory and degenerative signals were recorded in the diaphragm muscle. These effects were more intense with the trade grade than with the technical grade product. The possible influence of the percentage of cisitrans isomers on the intensity of the observed effects is discussed. 5 imi Academic ***.

关键词： Changes in Myelinated Nerve fibers and Skeletal Muscle of Rats Exposed to High Doses of Permethrin

Nickel Group Complexes With Thiolate or/and Phosphine *** and X-ray CrystalStructure of 〔Ni₂（pdt）₂ （PEt₃）₂〕

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Chinese Journal of Structural Chemistry 1997年第1期16卷 36-41页

作者： Cao K. Hong M.-C. Jiang f.-L. Liu H.-Q. State Key Lab. of Struct. Chemistry Fujian Inst. Res. Struct. of Matter Chinese Academy of Sciences Fuzhou 350002 Fujian China

The reactions of nickel group M 2+ with thiolate and phosphine in MeOH yield mononuclear and binuclear complexes. Ni 2 (PEt 3) 2 (pdt) 2 (pdt = 1, 2-propanedithiolate) was synthesized and analyzed by single crystal X-ray diffraction method. The complex is monoclinic with space group P2 1/c, M r = 566. 16 a = 18. 737 (5), b = 9.906(4), c = 14. 540(10) Å; V = 2697. 65 Å 3, D c = 1. 394 g/cm 3 for Z = 4; the final R(R w) = 0. 062(0. 072). The complex is a dimer, where the Ni atoms are linked by two sulphur atoms from SC 3H 6S 2- (pdt 2-) ligands and each Ni atom is four-coordinated by one P and three S atoms with distorted square-planar geometry. The Ni -Ni distance is 3. 025 Å , the average Ni-S, Ni-P distances are 2. 187 and 2. 194 Å , respectively.

关键词： nickel complex synthesis crystal structure

Using experimental designs for modelling of intermittent air filtration process

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frontiers of Electrical and Electronic Engineering in China 2008年第2期3卷 218-222页

作者： A.TILMATINE M.BRAHAMI f.MILOUA R.GOURI L.DASCALESCU Electrostatics and High Voltage Research Unit IRECOM Labora-toryUniversity of Sidi-Bel-AbbesFaculty of EngineeringAlgeria University Institute of Technology AngouleˆmeUniversity of PoitiersFrance

Identification of the optimal operating conditions and evaluation of their robustness are critical issues for industrial processes.A standard procedure,for modelling a laboratory-scale wire-to-cylinder electrostatic precipitator and for guiding the research of the set point,is *** procedure consists of formulating a set of recommendations regarding the choice of parameter values for electrostatic *** experiments were carried out on a laboratory cylindrical precipitator,built by one of the authors,with samples of wood *** parameters considered are the applied high voltage U,the air flow f,and the quantity of dust in air ***"one-factor-at-a-time"followed by factorial composite design experiments were performed,based on the following three-step strategy:1)Identify the domain of variation of the variables;2)Determine the mathematical model of the process outcome;3)Validation of the math-ematical model and optimisation of the process.

关键词： design of experiments electrostatic precip-itator experimental modelling high voltage

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碳纳米管表面涂覆钛的新方法(英文)

新型炭材料 2012年第6期27卷 401-408页

作者： H.0midval f.K.Mirzaei M.H.Rahimi Z.Sadeghian DepartmentofMiningandMetallurgicalEngineering.AmirkabirUniversityofTechnologyTehranPolytechnic Tehran.1ran DepartmentofMaterialsEngineering lrmlUniversityofScienceandTechnology.TehranIran DepartmentofGas.ResearchInstituteofPetroleumIndustryR1PI Tehran.Iran

采用TiCl4水解法对表面酸功能化的碳纳米管(CNTs)进行TiO2涂层,然后通过程序升温还原(TPR),使TiO2涂层转变为Ti涂层。利用SEM、TEM、XRD和EDAX对CNTs、CNT/TiO2纳米复合材料和Ti涂层CNTs进行表征。结果表明:超声波酸功能化CNTs后,可将T... 详细信息

采用TiCl4水解法对表面酸功能化的碳纳米管(CNTs)进行TiO2涂层,然后通过程序升温还原(TPR),使TiO2涂层转变为Ti涂层。利用SEM、TEM、XRD和EDAX对CNTs、CNT/TiO2纳米复合材料和Ti涂层CNTs进行表征。结果表明:超声波酸功能化CNTs后,可将TiO2成功地涂覆于CNTs表面;在850℃下、H2/Ar氛围中,通过TPR可将TiO2涂层还原为金属Ti涂层。该Ti涂层对CNTs和其他金属形成复合材料非常重要。

关键词：涂层纳米复合材料碳纳米管钛

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遥感原理及解译

遥感原理及解译

World Class Elite Breaststrokers Downward Kick EMG Muscle Activity of the Gluteus Maximus, Quadriceps femoris, Hamstring, Gastrocnemius Medialis, Rectus Abdominal, and Erector Spinae

作者： f.f.·萨宾(f.f. Sabins)3

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Psychology Research 2024年第2期14卷 64-69页

作者： Takahisa Ide William f.Johnson Sadafumi Takise Noriko Inada Hiromasa fujimori Takeharu fujimori Emi Moronuki Ai Soma Kazuki Watanabe Asahi Nagahata Iryna Glavnyk Mark Nikolaev Bogdan Plavin Osaka University of Health and Sport Sciences OsakaJapan Grand Canyon University Phoenix Phoenix Swim Club Paradise ValleyUSA Texas A&M University Corpus Corpus ChristiUSA Miki House TokyoJapan Valparaiso University ValparaisoUSA

This study analyzed the difference between using a downward breaststroke kick and a horizontal breaststroke kick in a sample of world class elite *** compared average muscle activity of the gluteus maximus,quadriceps femoris(vastus medialis and rectus femoris),hamstring/long head of the biceps femoris,gastrocnemius medialis,rectus abdominal,and erector spinae when using the downward breaststroke kick *** find that when this sample of swimmers utilized the downward breaststroke kick,max speed and velocity per stroke increased,measured by 12,788 EMG samples,where the results are highly correlated to duration of the aerodynamic buoyant force in breaststroke kick *** increases in performance observed from measuring the world class elite swimmers is highly correlated to the duration of the kick aerodynamic buoyant *** this sample of elite swimmers,the longer a swimmer demonstrates a buoyant force breaststroke kick,the lower the time in a 100 breaststroke.

关键词： swimming breaststroke downward kick EMG imagination world class elite swimmers

EffECT Of HOT DEfORMATION PARAMETERS ON RECRYSTALLIZATION Of STEEL T91

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 335-341页

作者： f. X. Zhu C. Liu G. Z. Chui and D. f. Gao (State Key Lab. of Rolling and Autoation, Northeastem University, Shenyang 110006, China)

In this paper, the recrystallization behavior of steel 9Gr- 1Mo - V-Wb - N at high temperature was studied using Gleeble - 1500 thermalmechanical *** critical conditions of occurrence of dy- namic recrystallization during hot deformation were obtained,and by means of double hit testing with an inter -hit time, the metabynamic recrystallization between rolling passes and its effect factors were also ***,the deformation activation energy of T91 steel,the relationship between critical stress,strain, temperature, and strain rate were regressed respectively, the results were sati- sfied.

关键词： ferritic stainless steel recovery recrystallization

Improvement of Amplitude-Shift-Keying Signal Quality by Employing an Effective Spectrum Equalization Method in a Combined fSK／ASK Modulation Scheme

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Chinese Physics Letters 2005年第8期22卷 1948-1950页

作者：忻向军 P.S.André A.L.J.Teixeira 徐重秀 Anaferreira TiagoSilveira P.M.Monteiro f.daRocha J.L.Pinto SchoolofElectronicEngineering BeijingUniversityofPostsandTelecommunicationsBeijing100876//InstituteofTelecommunicationsCampusdeSantiago3810-193AveiroPortugal InstituteofTelecommunications CampusdeSantiago3810-193AveiroPortugal//DepartmentofPhysicsUniversityofAveiroCampusdeSantiago3810-193AveiroPortugal SchoolofElectronicEngineering BeijingUniversityofPostsandTelecommunicationsBeijing100876 InstituteofTelecommunications CampusdeSantiago3810-193AveiroPortugal SiemensSA R.IrmāosSiemensno1Alfragide2720-093AmadoraPortugal InstituteofTelecommunications CampusdeSantiago3810-193AveiroPortugal//DepartmentofElectronicTelecommunicationsUniversityofAveiroCampusdeSantiago3810-193AveiroPortugal

A simple, economical and applicable spectrum equalization method is implemented by employing a reshaping filter in the combined frequency-shift-keying/amplitude-shift-keying modulation scheme to improve the quality of... 详细信息

关键词： IP ATM fSK ASK