|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 小菜蛾蛹期寄生蜂-颈双缘姬蜂地理种群间对温度反应的比较研究显示文摘在室内以小菜蛾蛹作为寄主 ,比较浙江杭州和台湾梨山 2地的颈双缘姬蜂在 13~ 35℃范围内7个温度下的生长发育、存活、子代性比及内禀增长率 .在 13和 35℃下 ,2个种群均不能育出后代成虫 .在 15、2 5、30、32和 33.5℃下 ,发育历期、成虫寿命和每雌寄生的寄主蛹数在 2种群间无显著差异 ,但幼虫至成虫阶段的存活率在 32和 33.5℃下 ,杭州种群均高于梨山种群 ,其中 32℃下差异达到了显著水平 .子代性比除 33.5℃下 2种群间无显著差异外 ,15、2 5、30和 32℃下杭州种群均显著或极显著高于梨山种群 .杭州种群的内禀增长率在 15~ 33.5℃范围均高于梨山种群 ,在 30和 32℃下 ,这种差异更为明显 .推测在高温区段种群间存活率的差异是由于各种群对当地气候条件的长期适应所造成的 。 | 施祖华 刘树生 GEBREMESKEL Fisseha B. | 2002 | 浙江大学学报(农业与生命科学版)2002，28，5： | 3 |
| 2 | Standard precautions:occupational exposure and behavior of health care workers in Ethiopia显示文摘 | Reda AA Fisseha S Mengistie B | 2010 | PLo S One2010，5，14： | 1 |
| 3 | Total Contents and Sequential Extraction of Heavy Metals in Soils Irrigated with Wastewater, Akaki, Ethiopia显示文摘 | Daniel Fitamo Fisseha Itana Mats Olsson | 2007 | Environmental Management2007，，2： | 1 |
| 4 | Characterization of native outer men,brahe vesicles from lpxL mutant strains of Neisseria meaingitidis for use in parenteral vaccination 显示文摘 | Fisseha M Chen P Brandt B | 2005 | Infect Immun2005，73，7： | 1 |
| 5 | Cystic myometrial lesion in the uterus of an adolescent girl显示文摘 | Fisseha S Smith YR Kumetz LM | 2006 | Fertil Steril2006，86，3： | 1 |
| 6 | Reengineering thesauri for new applications:the AGROVOC example显示文摘 | Dagobert S Lauser B Liang A Fisseha F Keizer J Katz S | | 0，，： | 1 |
| 7 | V-3 Baboon model of endometriosis显示文摘 | Fisseha S D' Hooghe T Chai D | 2006 | Fertil Steril2006，86，3： | 1 |
| 8 | Characteriza- tion of native outer membrane vesicles from lpxL mutant strains of neisseria meningitidis for use in paraenteral vaccination 显示文摘 | FISSEHA M CHEN P BRANDT B | 2005 | Infect Immun2005，73，7： | 1 |
| 9 | Cystic myometrial lesion in the uterus of an adolescent girl显示文摘 | Fisseha $ Smith YR Kumetz LM | 2006 | Fertil Steril2006，86，71： | 1 |
| 10 | Ovarian damage during chemotherapy in autoimmune disease:broad health implica- tions beyond fertility 显示文摘 | Marder W Fisseha S Ganser MA | 2012 | Clin Med Insights Reprod Health2012，6，： | 1 |
| 11 | Severe vitamin A deficiency in a rural village in the Hararge region of Ethiopia 显示文摘 | Wolde-Gebriel Z Gebru H Fisseha T | 1993 | Eur J Clin Nutr1993，47，2： | 1 |
| 12 | Reengineering thesauri for new applications:the AGROVOC example显示文摘 | Soergel D Lauser B Liang A Fisseha F Keizer J Katz S | | 0，，04： | 1 |
| 13 | Nutrient composition and short-term release from Croton macrostachyus Del. and Millettia ferruginea (Hochst.) Baker leaves显示文摘 | Jiregna Gindaba Mats Olsson Fisseha Itanna | 2004 | Biology and Fertility of Soils2004，，6： | 1 |
| 14 | Severe VitAmin A deficiency in a rural village in the Hararge region of Ethiopia 显示文摘 | Widerman U Gebru H Fisseha T | 1996 | The Immunologist1996，4，2： | 1 |
| 15 | Sustainable strategies for Ebola virus disease outbreak preparedness in Africa:a case study on lessons learnt in countries neighbouring the Democratic Republic of the Congo显示文摘Background: From May 2018 to September 2022, the Democratic Republic of Congo (DRC) experienced seven Ebola virus disease (EVD) outbreaks within its borders. During the 10th EVD outbreak (2018–2020), the largest experienced in the DRC and the second largest and most prolonged EVD outbreak recorded globally, a WHO risk assessment identified nine countries bordering the DRC as moderate to high risk from cross border importation. These countries implemented varying levels of Ebola virus disease preparedness interventions. This case study highlights the gains and shortfalls with the Ebola virus disease preparedness interventions within the various contexts of these countries against the background of a renewed and growing commitment for global epidemic preparedness highlighted during recent World Health Assembly events.Main text: Several positive impacts from preparedness support to countries bordering the affected provinces in the DRC were identified, including development of sustained capacities which were leveraged upon to respond to the subsequent coronavirus disease 2019 (COVID-19) pandemic. Shortfalls such as lost opportunities for operationalizing cross-border regional preparedness collaboration and better integration of multidisciplinary perspectives, vertical approaches to response pillars such as surveillance, over dependence on external support and duplication of efforts especially in areas of capacity building were also identified. A recurrent theme that emerged from this case study is the propensity towards implementing short-term interventions during active Ebola virus disease outbreaks for preparedness rather than sustainable investment into strengthening systems for improved health security in alignment with IHR obligations, the Sustainable Development Goals and advocating global policy for addressing the larger structural determinants underscoring these outbreaks.Conclusions: Despite several international frameworks established at the global level for emergency preparedness, a shortfall exists between global policy and practice in countries at high risk of cross border transmission from persistent Ebola virus disease outbreaks in the Democratic Republic of Congo. With renewed global health commitment for country emergency preparedness resulting from the COVID-19 pandemic and cumulating in a resolution for a pandemic preparedness treaty, the time to review and address these gaps and provide recommendations for more sustainable and integrative approaches to emergency preparedness towards achieving global health security is now. | Caroline S.Ryan Marie‑Roseline D.Belizaire Miriam Nanyunja Olushayo Oluseun Olu Yahaya Ali Ahmed Anderson Latt Matthew Tut Kol Bertrand Bamuleke Jayne Tusiime Nadia Nsabimbona Ishata Conteh Shamiso Nyashanu Patrick Otim Ramadan Solomon Fisseha Woldetsadik Jean‑Pierre Mulunda Nkata Jim T.Ntwari Senya D.Nzeyimana Leopold Ouedraogo Georges Batona Vedaste Ndahindwa Elizabeth A.Mgamb Magdalene Armah Joseph Francis Wamala Argata Guracha Guyo Alex Yao Sokemawu Freeman Alexander Chimbaru Innocent Komakech Muhau Kuku Walter M.Firmino Grace E.Saguti Faraja Msemwa Shikanga O‑Tipo Precious C.Kalubula Ngoy Nsenga Ambrose Otau Talisuna | 2022 | Infectious Diseases of Poverty2022，11，6： | 0 |
| 16 | 新型核壳AuTi@PtNi纳米催化剂:增强氧还原催化活性及稳定性显示文摘质子交换膜燃料电池(PEMFCs)将化学燃料转化为电能,具有能量转换效率高、清洁、零排放等特点,被认为是未来重要的能源利用装置.与阳极发生的氢氧化反应相比,阴极发生的氧还原反应(ORR)是动力学缓慢的过程,严重阻碍了燃料电池的广泛应用,因此迫切需要开发高活性的电催化剂来降低其电化学过电位,提高反应动力学.铂基纳米晶是氧还原反应有效的电催化剂,但存在成本高、储量少且耐用性差等问题.将铂(Pt)与过渡金属(Fe,Co,Ni等)合金化可以提升催化活性,且最外层有序的Pt原子层可以有效地避免过渡金属的腐蚀溶解,同时,利用金(Au)与Pt基合金形成核壳结构可以有效地降低催化剂成本,同时增强稳定性.然而,在以Au作为核时,很难通过退火处理获得富含Pt层的核壳催化剂.本文利用钛(Ti)原子与Au原子合金化后的协同作用,成功地制备了核壳AuTi@PtNi氧还原催化剂.由于Ti与Au的强相互作用,使得该催化剂即使经高温退火处理,依旧可以使Au保持在内部,同时可以获得富Pt壳层.利用配备有电子能量损失谱的透射电子显微镜及X射线电子能谱对催化剂进行表征,结果表明,Ti的引入可大大提升催化剂的热稳定性.由于具有核壳结构及富Pt的PtNi壳层,退火后的AuTi@PtNi-400催化剂在0.9 V(RHE)时的质量比活性(5.26 A mgPt^(‒1))和面积比活性(2.72 mA cm^(‒2))分别是商业化Pt/C催化剂的19.26倍和9.84倍.另外,AuTi@PtNi-400催化剂在20000圈循环测试后质量活性衰减不到10%,稳定性好于商业化Pt/C催化剂和未经过退火的AuTi@PtNi催化剂.进一步对AuTi@PtNi-400进行电催化测试,结果表明,在功率密度达到0.61 W cm^(‒2)的同时可产生1.31 A cm^(‒2)的电流密度,该结果优于商业化Pt(1.05 A cm^(‒2)和0.34 W cm^(‒2))以及Ti-Au@PtNi/C(1.25 A cm^(‒2)和0.62 W cm^(‒2)),峰值功率密度高达0.80 W cm^(‒2),这表明所制备的Ti-Au@PtNi/C-400催化剂不仅在三电极体系中具有较好的性能,在电堆测试中也展现出高性能,可以较大地满足和促进燃料电池的发展和应用.综上所述,对于燃料电池阴极催化剂,可结合形貌工程及协调作用,制备出低成本高性能的ORR催化剂,为燃料电池的进一步应用提供新思路. | Giday Fisseha 于亚楠 鲁少杰 胡一平 周雨 岳秦 | 2024 | Chinese Journal of Catalysis2024，56，1： | 0 |
| 17 | Ultrathin ternary PtNiGa nanowires for enhanced oxygen reduction reaction显示文摘Achieving high activity and durability for the oxygen reduction reaction(ORR)with an ultra-low amount of platinum is significant to promote the widespread application of proton exchange membrane fuel cells(PEMFCs).Here we report a new ultrathin(∼1 nm)ternary PtNiGa alloy nanowires(PtNiGa NWs)electrocatalyst,in which the presence of gallium(Ga)enhances the oxidation resistance of platinum(Pt)and nickel(Ni)and suppresses the dissolution of Ni.The mass and specific activities of PtNiGa NWs are about 11.2 and 7.6 times higher than those of commercial Pt/C catalysts for ORR.Moreover,the mass activity of PtNiGa/C NWs nanocatalyst decreased only by 12.8%and largely retained its electrochemical surface area(ECSA)after 10,000 potential cycles,compared with 38%loss of ECSA for commercial Pt/C catalyst.Therefore,this work provides a general guideline for preparing ternary alloy electrocatalysts and enhancing the activity and stability of the cathode ORR reaction of PEMFCs. | Giday Fisseha Yiping Hu Yanan Yu Shaojie Lu Dongsheng Ma Pei Nian Zheng Wang Qin Yue | 2024 | Chinese Chemical Letters2024，35，2： | 0 |
| 18 | The arbuscular mycorrhizal fungi status of selected tree nurseries in the Ethiopian highlands显示文摘We investigated the arbuscular mycorrhizal fungi(AMF)status of ten nurseries suitable for restoration of dry evergreen Afromontane forests in Ethiopia.We quantified AMF root colonization(RC)and spore abundance(SA)in seedlings of nine native tree species namely Acacia abyssinica Hochst.ex Benth.,Cordia africana Lam.,Dovyalis abyssinica(A.Rich.)Warb.,H agenia abyssinica J.F.Gmel.,Juniperus procera Hochst.ex Endl.,Millettia ferruginea(Hochst.)Baker,Olea europaea L.subsp.c uspidata(Wall.ex G.Don)Cif.,Podocarpus falcatus(Thunb.)R.Br.ex Mirb.and Prunus africana(Hook.f.)Kalkman.We used the ink and vinegar method to stain AMF in roots.RC levels ranged from 8.00 to 99.67%and were generally higher than the RC levels reported from other similar nurseries in Ethiopia.SA levels ranged from 1 to 25 spores g~(-1)and werecomparable with some reports from the field in Ethiopia but they were lower than levels reported by another similar study.RC was more affected by host species than nursery location,while the reverse was true for SA.The results also showed that nursery management could improve AMF status among seedlings.When all nursery tree species were considered,RC and SA levels were unrelated.No strong correlation existed between the nursery management variables considered and RC or SA.However,considering C.africana,J.procera and P.falcatus separately,RC-age(r_(s)=0.829,P=0.042)correlation for O.europaea and RC-pot diameter(r_(s)=0.820,P=0.046),RC-pot volume(r_(s)=0.928,P=0.008)and SA-age(r_(s)=0.943,P=0.005)correlations for C.africana,were significant,strong and positive.Generally,most of the tree species and particularly,early-mid successional tree species had sufficient AMF inoculum.Hence,only the mid-late successional tree species;J.procera,P.falcatus,and P.africana may require AMF inoculation,preferably,during filed planting.Based on our results,age and pot volume were identified to be important variables potentially affecting RC and SA.To better understand the effects of these and other nursery management variables,additional study is required.We demonstrated for the first time that black Hero ink is suitable for staining root AMF and can be used in future AMF research. | Fisseha Asmelash Tamrat Bekele Fassil Kebede Zerihun Belay | 2021 | Journal of Forestry Research2021，32，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员