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| 1 | 水–岩作用下断续节理砂岩力学特性劣化机理显示文摘在库水位周期性升降作用下,库水消落带节理岩体的损伤劣化很可能导致库岸边坡向不稳定的方向发展。基于此,开展了断续节理砂岩的水–岩作用试验,结合力学试验和微细观结构检测综合分析其劣化规律及机理。结果显示:(1)在长期水–岩作用过程中,断续节理岩样的抗压强度、变形模量劣化趋势明显,而且存在明显非均匀性,其中前3个水-岩作用周期的阶段劣化度明显较大,5个水–岩作用周期之后的阶段劣化度明显减小并趋于稳定。(2)水–岩作用下,不同节理倾角岩样的力学参数劣化幅度不一样,阶段劣化度总体呈U型分布,节理倾角在0°和90°附近时,节理岩样从明显的张性破坏逐渐向剪性破坏转变,破坏模式变化特征比较明显,对应力学参数劣化幅度较大;节理倾角为60°左右时,节理岩样总体保持顺节理面的剪切破坏,破坏模式变化特征不明显,对应力学参数劣化幅度比较小,这些变化也使得节理岩样各向异性力学特征逐渐减弱。(3)在水库长期运行过程中,消落带节理岩体的产状直接影响水–岩作用的劣化趋势和变形破坏特征,因此,在库岸边坡长期变形稳定分析中,不仅要关注消落带岩体力学性质的劣化,也要关注节理岩体的产状差异及其在水–岩作用下变形破坏模式的转化。 | 邓华锋 齐豫 李建林 姜桥 Eleyas Assefa 李新哲 | 2021 | 岩土工程学报2021，43，4： | 25 |
| 2 | Role of sex steroid receptors in pathobiology of hepatocellular carcinoma显示文摘The striking gender disparity observed in the incidence of hepatocellular carcinoma (HCC) suggests an important role of sex hormones in HCC pathogenesis. Though the studies began as early as in 1980s,the precise role of sex hormones and the significance of their receptors in HCC still remain poorly understood and perhaps contribute to current controversies about the potential use of hormonal therapy in HCC. A comprehensive review of the existing literature revealed several shortcomings associated with the studies on estrogen receptor (ER) and androgen receptor (AR) in normal liver and HCC. These shortcomings include the use of less sensitive receptor ligand binding assays and immunohistochemistry studies for ERα alone until 1996 when ERβ isoform was identified. The animal models of HCC utilized for studies were primarily based on chemical-induced hepatocarcinogenesis with less similarity to virus-induced HCC pathogenesis. However,recent in vitro studies in hepatoma cells provide newer insights for hormonal regulation of key cellular processes including interaction of ER and AR with viral proteins. In light of the above facts,there is an urgent need for a detailed investigation of sex hormones and their receptors in normal liver and HCC. In this review,we systematically present the information currently available on androgens,estrogens and their receptors in normal liver and HCC obtained from in vitro,in vivo experimental models and clinical studies. This information will direct future basic and clinical research to bridge the gap in knowledge to explore the therapeutic potential of hormonal therapy in HCC. | Mamta Kalra Jary Mayes Senait Assefa Anil K Kaul Rashmi Kaul | 2008 | World Journal of Gastroenterology2008，14，39： | 18 |
| 3 | Global diversity and taxonomy of the Inonotus linteus complex(Hymenochaetales,Basidiomycota):Sanghuangporus gen.nov.,Tropicoporus excentrodendri and T.guanacastensis gen.et spp.nov.,and 17 new combinations显示文摘Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annual habit and a monomitic hyphal system.The species number of Inonotus linteus complex has been increased in China and tropical America in recent publications.However,whether species in this complex belong to Inonotus has not specifically been addressed.To explore the phylogenetic placement of species of Inonotus linteus complex,we performed a comprehensive study using morphological and phylogenetic data based on global samples.nLSU(53 with 13 new)and ITS(70 with 18 new)datasets were used to produce the phylogenetic results.Taking into consideration the phylogenies inferred from the nLSU and ITS datasets,Inonotus is a polyphyletic genus comprising at least three clades.Clade A,the core Inonotus clade,contains the generic type,Inonotus hispidus,while Clades B and C comprise species from the Inonotus linteus complex.Morphological and phylogenetic evidence indicates that Clades B and C are new genera,and Sanghuangporus and Tropicoporus are introduced in this study.Ten species are transferred to Sanghuangporus and seven to Tropicoporus.Tropicoporus excentrodendri and T.guanacastensis spp.nov.are described,and their distinctive characters are discussed.Keys to the two new genera and the Inonotus sensu stricto,and to species of each new genus are provided. | Li-Wei Zhou Josef Vlasák Cony Decock Addisu Assefa Jan Stenlid Dawit Abate Sheng-Hua Wu Yu-Cheng Dai | 2016 | Fungal Diversity2016，，2： | 7 |
| 4 | Floristic diversity and regeneration status of woody plants in Zengena Forest, a remnant montane forest patch in northwestern Ethiopia显示文摘The study was conducted at Zengena forest, a fragmented remnant montane forest in northwestern Ethiopia, which surrounds Lake Zengena. The purpose was to assess the species composition, diversity and the regeneration status of woody plants. A total of 27 plots of 20 m × 20 m were sampled along the line transects laid down the altitudinal gradient from the edge of the forest encompassing the lake to the edge of the lake in eight aspects. In each plot, woody species were counted and the diameter at breast height and the height of trees and shrubs were measured. A total of 50 woody species belonging to 31 families were found, of which 17(34%) were trees, 7(14%) trees or shrubs, 23(46%) shrubs and 3(6%) lianas. The overall Shannon-Wiener diversity and evenness indices of woody species were 2.74 and 0.7, respectively. Clausena anisata had the highest relative density(23.5%), Rapanea rhododendroides the highest relative frequency(6.5%) and Prunus africana the highest relative dominance(45%) and importance value index(IVI, 51.6). The total basal area and density of woody plants were 22.3 m2?ha-1 and 2,202 individuals?ha-1, respectively. The population structure showed variations among woody plants and revealed varied regeneration patterns of different species. The importance value index and population structure revealed that some species are threatened and need prioritization for conservation measures. The results suggest that remnant forest patches in the highlands of northern Ethiopia host several woody plant species that are almost disappearing in other areas due to deforestation. | Desalegn Tadele Ermias Lulekal Destaw Damtie Adane Assefa | 2014 | Journal of Forestry Research2014，25，2： | 5 |
| 5 | Determinants of farmers’ adoption of land management practices in Gelana subwatershed of Northern highlands of Ethiopia显示文摘Introduction:Soil erosion is the major environmental problem in Ethiopia.In response to this problem,the country has been in continuous struggle to adopt land management practices.Therefore,the objective of this study was to investigate the determinants of farmers’adoption of land management practice in the Gelana sub-watershed,Northern highlands of Ethiopia.Methods:The data was collected from 176 randomly selected farming households using a survey questionnaire and was analyzed using multinomial logit model(MNL).Results:The results showed that education,family size,slope of the plot,tenure security,training,access to farm credit and extension service positively and significantly affect adoption of land management practices while age has a negative and significant influence on adoption.Conclusions:The findings suggest that improving farmers’education status and increase the availability of credit to reduce poverty and increase income would enhance the adoption of land management practices. | Birhan Asmame Miheretu Assefa Abegaz Yimer | 2017 | Ecological Processes2017，6，1： | 4 |
| 6 | 7种胺基键合硅胶的制备及其对重金属Pb2+的吸附显示文摘制备了氨丙基键合硅胶(SiO2-N)、乙二胺-N-丙基键合硅胶(SiO2-2N)、二乙烯三胺基键合硅胶(SiO2-3N)、三乙烯四胺基键合硅胶(SiO2-4N)、四乙烯五胺基键合硅胶(SiO2-5N)、五乙烯六胺基键合硅胶(SiO2-6N)和聚乙烯亚胺基键合硅胶(SiO2-n N),一步法制备的SiO2-N和SiO2-2N的胺基键合密度高达2.07 mmol/g和1.71 mmol/g,两步法制备的SiO2-n N的胺基键合密度为0.02 mmol/g,其余胺基键合硅胶中胺基密度约为0.50 mmol/g。这7种胺基键合硅胶被用于水溶液中常见重金属离子Pb^ 2+的吸附研究。结果表明,在30℃条件下,分别加入10 mL 400 mg/L的Pb^ 2+溶液(pH 5)和20 mg胺基键合硅胶进行吸附,10 h后,Pb^ 2+吸附量达到最大,吸附过程符合Freundlich等温方程。SiO2-N、SiO2-2N、SiO2-3N、SiO2-4N、SiO2-5N、SiO2-6N和SiO2-n N对Pb^ 2+的吸附量依次为131.28、138.98、85.37、75.22、61.87、79.12和114.06 mg/g,这些胺基键合硅胶在吸附Pb^ 2+方面均非常具有潜力。 | 李来明 任芳芳 ASSEFA Aschenaki 刘佳 张筱菲 包建民 李优鑫 | 2020 | 色谱2020，38，3： | 2 |
| 7 | Effect of variety, soil type and fertilizer on the establishment, growth, forage yield, quality and voluntary intakeby eattle of oats and vetches cultivated in pure stands and mixtures 显示文摘 | Assefa G Ledin 1 | 2001 | Animal Feed Science and Technology2001，92，： | 1 |
| 8 | The activation of the c-JunN-terminalkinase and p38 mitogen-activated protein kinase signa-ling pathways protects HeLa cells from apoptosis following photody-namic therapy with hypericin显示文摘 | Assefa Z Vantieghem A Declereq W | 1999 | J Biol Chem1999，274，13： | 1 |
| 9 | Wetland Restoration Response Analysis using MODIS and Groundwater Data显示文摘 | Assefa M M Vijay Nangia | 2007 | Sensors2007，，7： | 1 |
| 10 | Purchasing power parity and degree of openness in Latin America: a panel analysis 显示文摘 | ESQUEDA O A ASSEFA T A | 2011 | Journal of Financial and Economic Practice2011，11，： | 1 |
| 11 | DNA identification of Busseola(Lepidoptera:Noctuidae) larvae in Ethiopian sugarcane显示文摘 | ASSEFA Y MITCHELL A CONLONG D E | 2007 | African Entomology2007，15，： | 1 |
| 12 | Tuberous sclerosis complex ( TSC ) and Klippel - Trenannay - Weber (KTW) syndromes association of two complete phakom- atoses in a single individual 显示文摘 | Assefa G Alemie B | 2010 | Ethiop Med J2010，48，4： | 1 |
| 13 | Tunable white light-emission of a CaW1-xMoxO4:Tm3+,Tb3 +,Eu3 + phosphor prepared by a Pechini sol-gel method显示文摘 | Matthew Mickens Zerihun Assefa Dhananjay Kumar | | 0，，01： | 1 |
| 14 | Ultraviolet radiation-induced apoptosis in keratinocytes: on the role of cytosolic factors显示文摘 | Assefa Z Laethem A V Garmyn M | 2005 | Biochim Biophys Acta: Rev Cancer2005，1775，2： | 1 |
| 15 | Meningiomas: Clinical Correlates, Skull X-ray,CT and Pathological Evaluations显示文摘 | Assefa G Ashenafi S Munie T | 2006 | Ethiop Med J2006，44，3： | 1 |
| 16 | Low - power, 2 x 2 silicon electro - optic switch with 110 -nm bandwidth for broadband reconfigurable optical networks 显示文摘 | JORIS V C GREEN William M ASSEFA Solomon | 2009 | Opt Express2009，17，24： | 1 |
| 17 | Ultraviolet B radiation induce dapoptosis in human keratinocytes: cytosolic activation of procaspase and the role of Bcl-2 显示文摘 | Assefa Z Garmyn M Vantieghem A | 2003 | FEBS Lett2003，540，： | 1 |
| 18 | Social sustainability and so-cial acceptance in technology assessment:a case study of energy technologies显示文摘 | ASSEFA G FROSTELL B | 2007 | Technology in Society2007，29，1： | 1 |
| 19 | Livestock Feed Marketing in Ethiopia: Challenges and Opportunities for Livestock Development显示文摘 | Mesfin Dejene Seyoum Bediye Dawit Alemu Getu Kitaw Aemiro Kehaliw Getnet Assefa Getaw Tadesse | 2014 | Journal of Agricultural Science and Technology(A)2014，4，2： | 1 |
| 20 | Apoptoic and anti-apaptotic signaling pathways indeed by photodynamic therapy with hypericin显示文摘 | Agostinis P Assefa Vantieghem A | 2000 | Advan Enzyme Regul2000，40，： | 1 |
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