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| 1 | 我国主要花生品种的AFLP分析显示文摘对32个来源于中国不同产地的花生品种进行了AFLP指纹图谱及相似性聚类分析.结果表明:所有供试花 生品种的遗传相似性为35%,在45%的相似性水平处分为3个群,表明我国的花生品种存在遗传多态性.AFLP指纹图 谱分析技术能很好地反映出花生品种之间存在的遗传差异. | 陈强 张小平 李登煜 TEREFEWORK Zewdu LINDSTRM Kristina | 2003 | 应用与环境生物学报2003，9，2： | 26 |
| 2 | 电磁除垢参数的实验研究显示文摘利用麦克斯韦方程和边界条件,计算了交变磁场在水管中的场分布.采用交变磁场的磁感应强度作为参量,用实验的方法得到水管结垢量与磁感应强度之间的关系,从而提出了结垢磁感应强度阈值的概念.根据该阈值计算出不同管径对应的功率阈值,为工程设计提供了参考.此外,对水的参数,如温度、硬度与结垢量的关系进行了实验研究.结果表明,在水的硬度小于700mg/L的范围内,不同的管径对应的结垢磁感应强度阈值相近,功率阈值不同. | 姜德宁 Sintayehu Zewdu 傅汝廉 | 2008 | 天津科技大学学报2008，23，3： | 7 |
| 3 | 交变磁场对换热器阻垢效果的研究显示文摘采用自行研制的电子除垢仪所产生的交变磁场对换热器进行阻垢试验,考察了磁感应强度、水的硬度、温度、流速及压力对结垢量的影响。结果表明,不同进水硬度下,管壁的结垢量均随磁感应强度的增加而减少;使用电子除垢仪时的管壁结垢量较未使用电子除垢仪时显著减少;使用电子除垢仪时,管壁的结垢量随溶液硬度、温度的增加而呈缓慢上升趋势,流速和压力对结垢量几乎无影响;不使用电子除垢仪时,管壁的结垢量随溶液硬度、温度、流速的增加而迅速上升,但压力对结垢量基本无影响。 | 姜德宁 Sintayehu Zewdu 曹继华 | 2008 | 中国给水排水2008，24，7： | 4 |
| 4 | Effect of Vachellia tortilis on understory vegetation,herbaceous biomass and soil nutrients along a grazing gradient in a semi-arid African savanna显示文摘The spatial pattern and abundance of herbaceous vegetation in semi-arid savannas are dictated by a complex and dynamic interaction between trees and grasses. Scattered trees alter the composition and spatial distribution of herbaceous vegetation under their canopies. Therefore, we studied the effect of Vachellia tortilis on herbaceous vegetation composition, biomass and basal area, and soil nutrients on sites with varying grazing intensities in the central rift valley of Ethiopia. Data were collected on species composition, cover and biomass of herbs and grasses, and soil moisture and nutrient contents under light,medium, and heavy grazing pressures, both under the inside and outside of V. tortilis canopies. Species richness was similar in both locations but decreased with increased grazing. Only the overall biomass and herb cover were significantly greater under the canopy than outside, and overall biomass showed significant unchanging decline with increased grazing. However, vegetation cover was significantly greater on moderately grazed sites compared to low and heavily grazed sites. All soil variables were significantly higher under V. tortilis canopies than outside.Our findings suggest that V. tortilis has more effect on composition and diversity of herbaceous vegetation than on species richness, and that V. tortilis promotes the herbaceous layer biomass by reducing soil moisture loss and increasing soil fertility under the inside than outside the canopies. Therefore, we suggest that management practices should be directed on reducing pressure on V. tortilis by regulating grazing. Low to moderate grazing levels(i.e., a stocking rate less than 39.6 TLU ha^(-1) yr^(-1)) seems to be tolerable to ensure sustainable conservation of the species in the study area in particular and in semi-arid savannas in general. | Temesgen Yadeta Elmar Veenendaal Karle Sykora Zewdu K.Tessema Addisu Asefa | 2018 | Journal of Forestry Research2018，29，6： | 3 |
| 5 | Characteristics and outcome of traumatic chest injury patients visited a specialized hospital in Addis Ababa, Ethiopia: A one-year retrospective study显示文摘Purpose: Injury continues to be an important cause of morbidity and mortality in both developed and developing countries. Globally, it is responsible for approximately 5.8 million deaths per year and 91% of these deaths occur in developing countries. Road traffic collision, suicides and homicides are the leading cause of traumatic deaths. Despite the fact that traumatic chest injury is being responsible for 10% of all trauma-related hospital admissions and 25% of trauma-related deaths across the world including in Ethiopia, only few published studies showed the burden of traumatic chest injury in Ethiopia. So, this study aims at assessing the characteristics and outcome of traumatic chest injury patients visited Tikur Anbesa Specialized Hospital (TASH) over one year period.Methods: A single center based retrospective study was done. We collected data from patients’ records to assess characteristics and outcome of traumatic chest injury at TASH over one year period. All patients diagnosed with traumatic chest injury and received treatment at the hospital from January 1 to December 31, 2016 regardless of its types and severity levels were included in the study. Patients with incomplete medical records for at least 20% of the study variables and without detailed medical history, or patients died before receiving any health care were excluded from the study. The collected data were cleaned and entered into Epidata version 3.1 and exported to SPSS Version 21.0 for analysis. Bivariate and multivariate logistic regression models were used to examine factors associated with outcome of trau- matic chest injury patients.Results: A total of 192 chest injury patients were included in the study and about one-fourth of chest injury victims were died during treatment period in TASH. Road traffic collision (RTC) was the leading cause of morbidity and mortality among traumatic chest injury victims. Age of the victims (adjusted odds ratio (AOR) 8.9, 95% confidence interval (CI) 1.51-53.24), time elapsed between the occurrence of traumatic chest injury and admission to health care facilities (AOR 4.6, 95%CI 1.19-18.00), length of stay in hospital (AOR 0.12, 95%CI 0.02-0.58), presence of multiple extra-thoracic injury (AOR 25, 95%CI 4.18-150.02) and development of complications (AOR 23, 95%CI 10-550) were factors associated with death among traumatic chest injury patients in this study.Conclusion: RTC contributed for a considerable number of traumatic chest injuries in this study. Old age, delay in delivering the victim to health care facilities, length of stay in hospital, and development of atelectasis and pneumonia were associated with death among traumatic chest injury patients. Road safety interventions, establishment of organized pre-hospital services, and early recognition and prompt management of traumatic chest injury related complications are urgently needed to overcome the underlying problems in the study setting. | Ararso Baru Ermiyas Weldegiorgis Tigist Zewdu Heyria Hussien | 2020 | Chinese Journal of Traumatology2020，23，3： | 1 |
| 6 | Moisture-Dependent Physical Properties of Tel Seed显示文摘 | Zewdu A D Solomon W K | 2007 | Biosystems Engineering2007，96，1： | 1 |
| 7 | Moisture-Dependent Physical Properties of Tel Seed显示文摘 | Zewdu A D Solomon W K | 2007 | Biosystems Engineering2007，96，1： | 1 |
| 8 | AFLP fingerprinting as a tool to study the genetic diversity of Rhizobium galegae isolated from Galega orientalis and Galega officinalis 显示文摘 | Zewdu Terefework Seppo Kaijalainen Kristina Lindstrom | 2001 | Journal of Biotechnology2001，91，： | 1 |
| 9 | Aerodynamic properties of teff grain and straw material显示文摘 | Zewdu A D | 2007 | Biosystems Engineering2007，，98： | 1 |
| 10 | Effects of land use on 15N natural abundance of soils in Ethiopian highlands显示文摘 | Zewdu Eshetu Peter H?gberg | 2000 | Plant and Soil (-)2000，，1： | 1 |
| 11 | A Conserved Pbx-Wnt-p63-Irf6 Regulatory Module Controls Face Morphogenesis by Promoting Epithelial Apoptosis显示文摘 | Elisabetta Ferretti Bingsi Li Rediet Zewdu Victoria Wells Jean M. Hebert Courtney Karner Matthew J. Anderson Trevor Williams Jill Dixon Michael J. Dixon Michael J. Depew Licia Selleri | 2011 | Developmental Cell2011，，4： | 1 |
| 12 | Knowledge and practice of nurses towards prevention of pressure ulcer and associated factors in Gondar University Hospital, Northwest Ethiopia 显示文摘 | Nuru N Zewdu F Amsalu S | 2015 | BMC Nurs2015，14，1： | 1 |
| 13 | Growth performance and gum arabic production of Acacia senegal in northwest lowlands of Ethiopia显示文摘Despite the wide distribution of natural stands of Acacia senegal in Ethiopia, commercial exploitation of gum arabic is constrained by lack of tapping and development techniques. We evaluated the gum arabic yield from natural stands of A. senegal and the growth of 6 provenances in different parts of the country. For the gum yield evaluation from natural stands, four tapping positions and three tapping seasons were tested in a factorial RCB design. The second experiment in Metema evaluated survival and growth of six provenances. A. senegal trees in natural stands respond well to tapping if tapped during the appropriate season and at the correct position on the tree. The mean gum yield did not vary significantly by tapping season (p=0.63). Higher mean yield was, however, collected from trees tapped in October (96 g·tree-1 per two harvests). The mean yield differed significantly (p=0.009) between the tapping positions. Mean separation (α=0.05) shows that trees tapped at mid stem gave higher yield (160 g·tree-1 per two harvests). The interaction effect of tapping season and position was not significant. Higher mean yield ((70 ± 112) g·tree-1 ) was recorded in mid October-mid stem in two harvests. The second experiment indicated statistically significant difference in mean survival (p=0.0298), height (p=0.000) and root collar diameter (RCD), (p=0.012) between the six provenances. Highest survival, height and root collar diameter growth was observed from Abderafi provenance (100%, (148±11) cm, (38±11) mm, respectively). We recommend October and mid-stem and branches as appropriate tapping season and position. We recommend planting of the Abderafi provenance for the study area due to its superior growth and survival. Our study contributes to the proper selection of provenances for plantation development and improved tapping technology for better production of gum arabic in the country. | Asmamaw Alemu Zewdu Yilma Abeje Eshete Tatek Dejene | 2013 | Journal of Forestry Research2013，24，3： | 1 |
| 14 | Service Life Prediction of Repaired Structures Using Concrete Recasting Method : State-of-the-Art 显示文摘 | Woubishet Zewdu Taffesea Esko Sistonen | 2013 | Procedia Engineering2013，57，： | 1 |
| 15 | Analysis of environmental factors determining the abundance and diversity of macroinvertebrate taxa in natural wetlands of Southwest Ethiopia显示文摘 | Seid Tiku Mereta Pieter Boets Argaw Ambelu Bayih Asgdom Malu Zewdu Ephrem Addisu Sisay Hailu Endale Menberu Yitbarek Amana Jemal Luc De Meester Peter L.M. Goethals | 2011 | Ecological Informatics2011，，1： | 1 |
| 16 | Photo-induced charge transfer dynamics in efficient TiO2/CdS/CdSe sensitized solar cells显示文摘 | Zewdu T Clifford J N Hemandez J P | | 0，，： | 1 |
| 17 | Variations in soil properties and native woody plant species abundance under Prosopis juliflora invasion in Afar grazing lands, Ethiopia显示文摘Introduction:Pastoralism and agro-pastoralism are the major modes of life in arid and semi-arid rangelands.However,rangeland quality and quantity are rapidly deteriorating due to a number of natural and human-induced factors,one of which is bush encroachment.Little is known on how bush encroachment affects the ecosystem functions and services expressed in terms of the native vegetation composition and structure,status of the soil seed bank,soil chemical and physical properties,and the abundance of mycorrhiza spores.Methods:We assessed woody species in 64 plots distributed across four levels of Prosopis juliflora invasion(high,medium,low,and none)at two sites,Amibara and Gewane,in the Afar Region,Ethiopia.We collected composite soil samples to investigate the soil seed bank,mycorrhizal associations,and spore abundance.Results:Plant biodiversity was generally low,with eight and four woody species in Gewane and Amibara,respectively.Prosopis juliflora was dominant in highly,moderately,and lowly invaded areas while Acacia senegal dominated the non-invaded areas.The average number of P.juliflora individuals ranged from 3/ha at non-invaded areas in Gewane to 4200/ha at highly invaded areas in Amibara while the total individual number of native woody species ranged from 0 to 88/ha at highly and lowly invaded areas,respectively.The population structure of trees/shrubs in all invasion areas showed an inverted J-shaped distribution,characterized by a high abundance of small individuals.Prosopis juliflora invasion was associated with high soil OC,Na,Ca,P,bulk density,and moisture content.Herbaceous seed numbers and species richness were highest in the moderately and highly invaded areas.All sampled tree species were associated with mycorrhiza but the percentage of root length colonization by different arbuscular mycorrhizal fungus structures varied significantly(p<0.05)across invasion categories and sites.Conclusions:Our results revealed that although P.juliflora invasion negatively impacted the availability of native woody livestock forage species,it had a positive effect on most soil physical and chemical properties.Such variable effects call out for sustainable management practices when invaded areas are restored. | Abeje Eshete Anna C.Treydte Mengsteab Hailemariam Negasi Solomon Tatek Dejene Zewdu Yilma Emiru Birhane | 2020 | Ecological Processes2020，9，1： | 1 |
| 18 | Perception and attitude of pastoralists on livestock-wildlife interactions around Awash National Park, Ethiopia: implication for biodiversity conservation显示文摘Introduction:Pastoral livestock share grazing areas and watering points with wildlife around the protected areas in Eastern Africa.This causes a high degree of livestock-wildlife interactions,leading to conflicts between the local community and park staff.Thus,understanding the perception and attitude of local people towards livestockwildlife interaction is very crucial to optimize both livestock production and biodiversity conservation in protected areas.This paper presents the perception and attitude of local community towards livestock-wildlife interactions around Awash National Park(ANP),Ethiopia.Methods:Interview to 180 randomly selected households,representing Afar,Ittu,and Kereyu ethnic groups living around ANP,was conducted from August to December 2015 using a semi-structured questionnaire.Data on community attitude towards wildlife,livestock production systems,and its constraints were collected through focus group-and key informant discussions.We used ordinal logistic regression model to analyze community attitude towards wildlife conservation.Results:Respondents ranked feed shortage(0.38),lack of water(0.32),and climate change(0.30)as the major constraints of livestock production around ANP.A high degree of conflict(79%;χ^(2)=24.09;df=2;P=0.000)between the local community and park was recorded.About 73%of the households would be ready to live in harmony with the park.However,85%of park staff considered the community as a threat,due to high livestock grazing pressure and illegal park resource use.Overall,community attitude towards wildlife significantly varied(χ^(2)=46.28;df=4;P=0.00)particularly due to educational level(χ^(2)=15.96;df=6;P=0.014),income source(χ^(2)=16.77;df=2;P=0.00),and distance of household from ANP(χ^(2)=20.51;df=4;P=0.00).The logistic regression model revealed that ethnic group,education,benefit obtained,and conflict with the park were significantly associated with attitude towards wildlife(χ^(2)15=76.62;df=16;P=0.000).Conclusions:Majority of respondents showed positive attitude towards wildlife,implying a better chance to mobilize the community for conservation activities in the park.Thus,expansion of formal and adult education as well as livelihood diversification strategies that could benefit the pastoral community would help to improve community attitude towards wildlife so that both wildlife conservation and livestock production can be optimized around ANP. | Yihew Biru Zewdu K.Tessema Mengistu Urge | 2017 | Ecological Processes2017，6，1： | 1 |
| 19 | Silver stained polyacrylamide gels and fluorescence-based automated capillary electrophoresis for de- tection of amplified fragment length polymorphism patterns obtained from white-rot fungi in the genus Trametes 显示文摘 | ANETA D N ZEWDU T SEPPO K | 2000 | Journal of Microbiogical Methods2000，041，： | 1 |
| 20 | Influence of Grazing on Soil Seed Banks Determines the Restoration Potential of Aboveground Vegetation in a Semi‐arid Savanna of Ethiopia显示文摘 | Zewdu K.Tessema Willem F.de Boer Robert M. T.Baars Herbert H. T.Prins | 2012 | Biotropica2012，，2： | 1 |
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