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129篇 您的检索式:作者名="Getahun"
    题名 作者 年代 出处 被引量
1喷射FRP加固震损钢筋混凝土柱抗震性能试验显示文摘通过12组72件喷射纤维/树脂复合材料(FRP)试样的拉伸强度试验,研究了纤维种类、树脂基体材料、纤维体积分数、纤维混杂比及纤维长度等因素对喷射FRP拉伸强度、弹性模量和断裂伸长率等性能的影响。通过8根钢筋混凝土(RC)柱试件的拟静力试验,研究了喷射玄武岩纤维/树脂复合材料(BFRP)和混杂玄武岩-碳纤维/树脂复合材料(BF-CFRP)加固震损RC柱的抗震性能,分析了喷射FRP层厚度、纤维混杂比、柱预损程度和柱轴压比等对加固试件的极限承载力、抗侧变形能力、刚度退化特征和滞回特性的影响。结果表明:玻璃纤维与乙烯基酯树脂基体的协同工作性能最优,而玄武岩纤维具有耐久性高、延性好、与乙烯基酯树脂基体协同工作性能好等优良性能,可以作为玻璃纤维的良好替代品;玄武岩纤维混杂少量比例的碳纤维作为树脂基体增强材料,可以有效提高喷射FRP的拉伸强度和变形性能;震损RC柱经喷射FRP加固后,可以基本恢复其震损前设计极限承载力,并有效提高其延性和耗能能力。该加固方法可以对地震区已震损RC柱进行快速加固,有效防止整体结构在余震中发生倒塌等严重破坏。谷倩 董格 GETAHUNE Bitewlgn Mekonnen 王翔 2016复合材料学报2016,33,5:6
2栽培种花生AFLP标记体系的优化及多态性引物筛选显示文摘为建立并优化适合花生的EcoR Ⅰ和Mse Ⅰ内切酶组合的AFLP标记技术体系,本试验对花生基因组DNA大样提取方法、双酶切反应、连接体系、预扩增和选择性扩增等影响因素进行反复调试与优化,并对适合花生AFLP分析的引物组合(E/M)进行多态性筛选。结果表明,高质量的模板DNA提取采用改进的SDS-CTAB法,DNA样品的浓度在150~200 ng·μL^(-1),37℃双酶切3.0 h,接头浓度为50pmol·μL^(-1),T4-DNA连接酶浓度为10 U·μL^(-1),16℃连接10 h。以2×Es Taq MasterMix(含有Es Taq DNA Polymerase,3 mmol·L^(-1)MgCl_2和400μmol·L^(-1)d NTP)作为PCR反应原料,其中,预扩增反应体系为50μL,预扩增引物(E00和M00)的浓度为50 ng·μL^(-1),预扩增产物最适稀释倍数为20倍;选择性扩增反应体系为20μL,扩增产物中加入10μL Loading Buffer,经95℃变性10 min后,立刻转移到冰浴中冷却备用。最终,从225对AFLP引物组合中,筛选出稳定且多态性丰富的42对引物组合,可用于后期作图群体基因型检测和种质资源遗传多样性分析。本研究结果为下一步构建花生高密度遗传连锁图谱和开展分子标记辅助育种奠定了基础。王亮 杨鑫雷 GETAHUN Addisu 崔顺立 穆国俊 刘立峰 李自超 2017核农学报2017,31,11:5
3Seroprevalence of Helicobacter pylori in dyspeptic patients and its relationship with HIV infection,ABO blood groups and life style in a university hospital,Northwest Ethiopia显示文摘瞄准:在消化不良的病人之中决定 Helicobacter pylori (H pylori ) 的流行并且估计在 H pylori 感染,血型, HIV 感染和病人的生活方式之间的关系。方法:在基于医院的代表性的研究, Gondar 医院的大学的病人出席门诊病人部门被注册。Socio 人口统计的信息用问询表被收集。浆液用一个商业工具包为 anti-H pylori IgG 抗体被分析。HIV serostatus 被连接酶的免疫吸着剂试金(ELISA ) 决定。Blood grouping 被幻灯片凝集试验执行。结果:215 个消化不良的病人的一个总数在学习被包括。116 个病人(54%) 是女性,(46%) 99 是男性。Anti-H pylori IgG 抗体在重量的单位被检测一 of 184 (85.6%) 病人。流行在 50 年并且在上面的病人是显著地更高的。百分之五个病人被发现是为 HIV 的血清反应阳性的二十个点。没有重要协会为 H pylori 在性别,土佬血型,香的食谱的消费,社会经济的地位和 seropositivity 之间被发现。然而,白酒消费显著地与 H pylori 血清学被联系。结论:H pylori 感染的流行与白酒吸入和老年的历史被联系。象为 H pylori 感染的风险因素的不同饮食,酒精和社会经济的地位的效果需要进一步的学习。Feleke Moges Afework Kassu Getahun Mengistu Solomon Adugna Berhanu Andualem Takeshi Nishikawa Fusao Ota 2006World Journal of Gastroenterology2006,12,12:2
4Seroprevalence of hepatitis B surface antigen in pregnant women attending antenatal clinic in Honiara Solomon Islands,2015显示文摘AIM To determine the seroprevalence of hepatitis B surface antigen(HBsAg) among pregnant women attending antenatal clinic in Honiara, Solomon Islands. METHODS This descriptive cross-sectional study was carried out in seven area health centers in Honiara. From March to June 2015, identification of eligible pregnant women in each site was conducted using systematic random sampling technique. A total of 243 pregnant women who gave written informed consent were enrolled. Standardized tool was used to record demographics, obstetric history and serology results. HBsAg and hepatitis B e antigen(HBeAg) were tested using point-of-care rapid diagnostic test. All HBsAg positive samples were verified using enzyme-linked immunosorbent assay. RESULTS The mean age of participants was 26 ± 6 years. The overall hepatitis HBsAg prevalence was 13.8% with higher rate(22%) reported in women between 30-34 years of age. Majority of HBsAg positive participants were Melanesians(29 out for 33). None of the pregnant women in the 15-19 years and ≥ 40 years tested positive for HBsAg. There was no statistically significant difference in HBsAg prevalence by age, ethnicity, education and residential location. The overall HBeAg seroprevalence was 36.7%. Women between 20-24 years of age had the highest rate of 54.5%. Low level of knowledge about hepatitis B vaccination was reputed. Overall, 54.6% of participants were not aware of their hepatitis B vaccination status and only 65.2% of mothers reported their child had been vaccinated. CONCLUSION Hepatitis B is a disease of public health importance in Solomon Islands and emphasize the need for integrated preventative interventions for its control.Aneley Getahun Margaret Baekalia Nixon Panda Alice Lee Elliot Puiahi Sabiha Khan Donald Tahani Doris Manongi 2016World Journal of Hepatology2016,8,34:2
5Tuberculosis care strategies and their economic consequences for patients: the missing link to end tuberculosis显示文摘Background:While investment in the development of Tuberculosis(TB)treatment strategies is essential,it cannot be assumed that the strategies are affordable for TB patients living in countries with high economic constraints.This study aimed to determine the economic consequences of directly observed therapy for TB patients.Methods:A cross-sectional cost-of-illness analysis was conducted between September to November 2015 among 576 randomly selected adult TB patients who were on directly observed treatment in 27 public health facilities in Addis Ababa,Ethiopia.Data were collected using interviewer-administered questionnaire adapted from the Tool to Estimate Patients’Costs.Mean and median costs,reduction of productivity,and household expenditure of TB patients were calculated and ways of coping costs captured.Eta(η),Odds ratio and p values were used to measure association between variables.Results:Of the total 576 TB patients enrolled,43%were smear-positive pulmonary TB(PTB),17%smear-negative PTB,37%Extra-PTB and 3%multi-drug resistant TB cases.Direct(Out-of-Pocket)mean and median costs of TB illness to patients were$123.0(SD=58.8)and$125.78(R=338.12),respectively,and indirect(loss income)mean and median costs were$54.26(SD=43.5)and$44.61(R=215.6),respectively.Mean and median total cost of TB illness to patient were$177.3(SD=78.7)and$177.1(R=461.8),respectively.The total cost had significant association with patient’s household income,residence,need for additional food,and primary income(P<0.05).Direct costs were catastrophic for 63%of TB patients,regardless of significant difference between gender(P=0.92)and type of TB cases(P=0.37).TB patients mean productivity and income reduced by 37 and 10%,respectively,compared with pre-treatment level,while mean household expenditure increased by 33%and working hours reduced by 78%due to TB illness.Income quartile categories were directly correlated with catastrophic costs(η=0.684).Conclusion:Despite the availability of free-of-charge anti-TB drugs,TB patients were suffering from out-of-pocket payments with catastrophic consequences,which in turn were hampering the efforts to end TB.TB patients in resource-limited countries deserve integrated patient-centered care with comprehensive health insurance coverage,financial incentives,and nutrition support to reduce catastrophic costs and retain them in care.Such countries should induce home-based directly observed therapy programs to reduce costs due to attending health facilities,intensify home treatment of critically-ill patients with impaired mobility,and reduce the spread of TB due to patients traveling to seek care.Belete Getahun Moges Wubie Getiye Dejenu Tsegahun Manyazewal 2016Infectious Diseases of Poverty2016,5,1:2
6Molecular epidemiology of Giardia duodenalis infection in humans in Southern Ethiopia:a triosephosphate isomerase gene-targeted analysis显示文摘Background:Giardia duodenalis is a species complex consisting of multiple genetically distinct assemblages.The species imposes a major public health crisis on developing countries.However,the molecular diversity,transmission dynamics and risk factors of the species in these countries are indeterminate.This study was conducted to determine the molecular epidemiology of G.duodenalis infection in asymptomatic individuals in Southern Ethiopia.Methods:From March to June 2014,fresh stool samples were collected from 590 randomly selected individuals.Socio-demographic data were gathered using a pre-tested structured questionnaire.The genotyping was done using triosephosphate isomerase gene-based nested polymerase chain reaction and DNA sequencing.The genetic identity and relatedness of isolates were determined using the basic local alignment search tool and phylogenetic analysis.Risk factors associated with G.duodenalis infection were analysed using binary and multinomial logistic regression models.Results:The results showed that 18.1%(92/509)of the study subjects were infected by G.duodenalis.Among the isolates,35.9%(33/92)and 21.7%(20/92)were sub-typed into assemblages A and B,respectively,whereas 42.4%(39/92)showed mixed infections of A and B.Most of the assemblage A isolates(94%,31/33)were 100%identical to sequences registered in GenBank,of which the majority belonged to sub-assemblage AII.However,the high genetic variability and frequency of double peaks made sub-genotyping of assemblage B more problematic and only 20%(4/20)of the isolates matched 100%with the sequences.The risk factors of age(P=0.032)and type of drinking water source(P=0.003)both showed a significant association with the occurrence G.duodenalis infection.Conclusions:This study established the endemicity of G.duodenalis in Southern Ethiopia.Infection with assemblage A was more frequent than with assemblage B,and the rate of infection was higher in children and in municipal/tap and open spring water consumers than the other groups.Sub-typing of assemblage B and determining the origin of double peaks were challenging.The present study confirms the need for further inclusive studies to be conducted focusing on sub-types of assemblage B and the origin of heterogeneity.Mengistu Damitie Zeleke Mekonnen Tadesse Getahun Dante Santiago Luc Leyns 2018Infectious Diseases of Poverty2018,7,1:2
7Previous cesarean delivery and risks of placenta previa and placental abruption显示文摘Getahun D Oyelese Y Salihu H M et a1 2006Obstet Gyneeol2006,107,4:1
8IgG2a-mediated enhancement of antibody and T cell responses and its relation to inhibitory and activating Fc gamma receptors显示文摘GETAHUN A DAHISTROM J WERNERSSON S 2004J Immunol2004,172,:1
9Recurrence of spontaneous versus medical indicated preterm birth显示文摘Ananth CV Getahun D Peltier MR et at 0,,03:1
10显示文摘Getahun SM 1999Cancer Epidemiol Biomarkers Prev1999,8,:1
11Primary preeclampsia in the second pregnancy:effects of changes in pregnancy body mass index between pregnancies显示文摘Getahun D Ananth CV Oyelese Y 0,,06:1
12HIV infection-associated tuberculosis:the epidemiology and the response显示文摘Getahun H Gunneberg C Granich R 2010Clin Infect Dis2010,50,3:1
13Previous cesarean delivery and risks of placenta previa and placental abruption显示文摘Getahun D Oyelese Y Salihu H M 2006Obstet Gynecol2006,107,4:1
14Risk factors for antepartum and intrapartum stillbirth: a population-based study显示文摘Getahun D Ananth CV Kinzler WL 2007Am J Obstet Gynecol2007,196,6:1
15The major histocompatibility class Ⅱ alpha chain in salmonid fishes显示文摘Grimhoh U Getahun A Hermsen T 2000Developmental and Comparative Immunology2000,24,8:1
16Hysteretic characteristics of shear panel damper made of low yield point steel 显示文摘Abebe D Y Jeong S J Getahune B M 2016Material Research Innovations2016,19,5:1
17Previous cesarean de-livery and risks of placenta previa and placental abruption显示文摘Getahun D Oyelese Y Salihu H M 2006Obstet-Gyneco2006,107,:1
18HIV infection-as- sociated tuberculosis: the epidemiology and the response显示文摘Getahun H Gunneberg C Granich R 2010Clin Infect Dis2010,50,3:1
19LatentMycobacterium tuberculosis infection显示文摘Getahun H Matteelli A Chaisson RE 2015N Engl J Med2015,,:1
20Opportunities and challenges for HIV care in overlapping HIV and TB epidemics 显示文摘Havlir DV Getahun H Sanne I 2008JAMA2008,300,:1
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