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34篇 您的检索式:作者名="Olatunde"
    题名 作者 年代 出处 被引量
1西北印度洋天休热液区热液成因矿物特征与分布及其指示意义显示文摘海底沉积物中的热液成因矿物主要来自热液区热液产物堆积体的失稳垮塌搬运迁移和热液羽流自生矿物颗粒的沉降。热液成因矿物的类型和空间分布特征对于了解热液活动区的位置与范围具有重要的指示作用。天休热液区(3°41′N、63°50′E)位于卡尔斯伯格脊超镁铁岩系中,本文对采自该热液区及其周边的共4站表层沉积物样品进行研究,分析热液成因矿物的组成、丰度和粒度的空间变化情况。研究表明,在热液喷口近端(0~0.22 km)同时分布有垮塌迁移及热液羽流沉降来源的热液成因矿物,其中垮塌来源的矿物呈砾—粗砂级,以古巴矿等金属硫化物矿物及铁氧化物为主;羽流沉降来源的矿物呈砂—泥级,以Cu-Zn-Fe硫化物矿物(等轴古巴矿、古巴矿、闪锌矿和磁黄铁矿等)为主。在远喷口端(1.84~6.05 km)主要分布有羽流沉降来源的热液成因矿物,以砂—泥级的金属氧化物和氢氧化物为主。热液成因矿物的类型、粒度、丰度在空间上呈现出的规律性分布特征可以示踪未知的活动和非活动热液区的位置,并作为多金属硫化物资源的找矿标志。蔡翌旸 韩喜球 邱中炎 王叶剑 李谋 Samuel Olatunde Popoola 2020海洋地质与第四纪地质2020,40,5:2
2Soil seed bank of an upland calcareous grassland after 6 years of climate and management manipulations显示文摘Olatunde A M ken Thompson Saraha M B 1998Journal of Applied Ecology1998,35,54:1
3Effect of salting techniques onsalt uptake and drying kinetics of African catfish (Clariasgariepinus) 显示文摘Sobukola O P Olatunde S O 2011Food and Bioproducts Processing2011,,89:1
4Synthesis of 4-aminoantipyrine Schiff bases and their antimicrobial activities显示文摘Various compounds of 4-aminoantipyrine Schiff bases(M1–M12) were synthesized via a condensation reaction of 4-aminoantipyrine with different benzaldehydes through a conventional method of refluxing the mixture for 3–4 h. The synthesized Schiff bases were characterized by using elemental analyses, FT-IR, UV-Vis, Mass, 1 H and 13 C NMR spectroscopy. The antimicrobial activity of the synthesized Schiff bases was investigated against 12 bacterial strains(Mycobacterium smegmatis, Bacillus cereus, Bacillus subtilis, Enterococcus faecalis, Staphylococcus epidermidis, Klebsiella pneumonia, Escherichia coli, Enterobacter cloacae, Klebsiella oxytoca, Proteus vulgaris, Enterobacter aerogenes, and Pseudomonas aeruginosa), and antifungal activities were tested against seven fungal strains(Aspergillus flavus, Aspergillus carbonarious, Aspergillus parasiticus, Aspergillus fumigatus, Aspergillus niger, Fusarium verticillioides and Fusarium proliferatum). The antimicrobial activities of the synthesized compounds were compared with standard streptomycin and nalidixic acid. The results obtained from antibacterial assay indicated that M1–M12 inhibited potential growth of Proteus vulgaris with minimum inhibitory concentrations(MICs) ranging from 15.6–250 μg/mL compared with the standard nalidixic acid with an MIC of 500 μg/mL. Moreover, we could conclude that most of the tested compounds experienced mild to low activities at 15.6 μg/mL. Their activities could be attributed to their low concentration s. The antifungal analysis showed that the tested fungi were not sensitive to the prepared Schiff bases at the prepared concentration of 500 μg/mL. Therefore, we recommended further analysis on both cytotoxicity and minimum bactericidal concentration(MBC) to ascertain their potential effects against human cells.Olatunde S.Oladeji Monisola I.Ikhile Carine M.D.Fotsing Messai Mamo Patrick G.Ndungu Derek T.Ndinteh 2018Journal of Chinese Pharmaceutical Sciences2018,27,11:1
5胚后发育期臭腹腺蝗中的血细胞种类(英文)显示文摘应用血球计数器统计了胚后发育期臭腹腺蝗Zonocerus variegatus中存在的血细胞类型和数目。从1龄幼虫至成虫的发育阶段中共观察到6种血细胞类型,即原血细胞(PRS)、浆血细胞(PLS)、粒细胞(GRS)、珠血细胞(SPS)、绛色细胞(OES)和adipohaemocytes(ADS)。不过,在1龄幼虫期未发现OES。在这6种血细胞中,PLS的总平均数最高,OES的总平均数最低。成虫期的血细胞数目显著高于其他发育阶段(P<0.05),而1龄幼虫和2龄幼虫期的血细胞数目不存在显著差异(P>0.05)。ADEMOLU Kehinde Olutoyin IDOWU Adewunmi Babatunde OLATUNDE Ganiu 2010昆虫学报2010,53,4:1
6Antioxidant and Scavenging Activities of Flavonoid Extract (Kolaviron) of Garcinia kola Seeds显示文摘E. Olatunde Farombi Olayide O. Akanni Godwin O. Emerole 2002Pharmaceutical Biology2002,,2:1
7Different Practice Pat-terns of Rural and Urban General Practitioners Are Pre-dicted By the General Practice Rurality Index 显示文摘Olatunde S Leduc ER Berkowitz J 2007Can JRural Med2007,12,2:1
8Antioxidative and Chemopreventive Properties of Vernonia amygdalina and Garcinia biflavonoid显示文摘Farombi Ebenezer O Owoeye Olatunde 2011International Journal of Environmental Research and Public Health2011,,6:1
9Soil seed bank of an upland calcareous grassland after 6 years of climate and management manipulation显示文摘M Olatunde Akinola Kenthompson Sarahm Buckland 1998Journal of Applied Ecology1998,35,:1
10OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE IN AGROECOSYSTEMS显示文摘Soil microbiomes drive the biogeochemical cycling of nitrogen and regulate soil N supply and loss,thus,pivotal nitrogen use efficiency(NUE).Meanwhile,there is an increasing awareness that plant associated microbiomes and soil food web interactions is vital for modulating crop productivity and N uptake.The rapid advances in modern omics-based techniques and biotechnologies make it possible to manipulate soil-plant microbiomes for improving NUE and reducing N environmental impacts.This paper summarizes current progress in research on regulating soil microbial N cycle processes for NUE improvement,plant-microbe interactions benefiting plant N uptake,and the importance of soil microbiomes in promoting soil health and crop productivity.We also proposes a potential holistic(rhizosphere-root-phyllosphere)microbe-based approach to improve NUE and reduce dependence on mineral N fertilizer in agroecosystems,toward nature-based solution for nutrient management in intensive cropping systems.Jingjing PENG Olatunde OLADELE Xiaotong SONG Xiaotang JU Zhongjun JIA Hangwei HU Xuejun LIU Shuikuan BEI Anhui GE Limei ZHANG Zhenling CUI 2022Frontiers of Agricultural Science and Engineering2022,9,3:1
11Spatial Analysis of Flood Vulnerability Levels in Port Harcourt Metropolis Using GIS显示文摘Olatunde Sunday Eludoyin Vincent Ezikomwor Weli 2012Journal of Earth Science and Engineering2012,2,10:1
12Digestive enzymes in the alimentary tract of three tropical catfish显示文摘Olatunde A A Qgunbiyi O A 1977Hydrobiologia1977,56,1:1
13Trends in complementary/alternative medicine use by breast cancer survivors:comparing survey data from 1998and 2005显示文摘Boon HS Olatunde F Zick SM 2007BMC Womens Health2007,7,:1
14A re- view of the underlying concepts of electronic voting 显示文摘Olusola O O Olusayo O E Olatunde O S 2012Information and Knowledge Management2012,2,1:1
15Larval habitats of mosquito fauna in Osogbo metropolis,Southwestern Nigeria显示文摘Objective:To determine the larval habitats of mosquito fauna and possible impact of land use/land cover changes on the epidemiology of mosquito-bome diseases in Osogbo metropolis,Southwestern,Nigeria.Methods:All accessible larval habitats were surveyed between May and September,2011in Osogbo metropolis while Land Use/Land cover of the city was analyzed using 2 Lansat Multispectral Scanner satellite imagery of SPOT 1986 and T.ANDSAT TM 2009.Results:A total of six species namely,Aedes aegypti,Aedes albopictus,Aedes vittatus,Anopheles gambiae complex,Culex quinquefascialus and Erelmapodite chrysogaster were encountered during the study.The occurrence and contribution of disused tyres was significantly higher(P<0.05)than the other habitats encountered,while there were no significant differences in the contribution of gutters/run-offs.septic tanks/drums,ground pools/open drains and discarded containers lo the breeding of mosquitoes(P>0.05).The accessible land use/land covered of the study area between 1986 and 2009 showed that the wet land coverage and settlement area increased from 0.19 lo 9.09 hectare and 1.00 to 2.01 hectare respectively while the forest area decreased from 60.18 to 50.14 hectare.Conclusion:The contribution of the habitats coupled with the increasing rale of flooded environment which could provide ample breeding sites for mosquitoes call for sustained environmental sanitation and management in Osogbo metropolis.Monsuru Adebayo Adeleke Wasiu Olalekan Adebimpe Abdulwasiu Oladele Hassan Sunday Olukayode Oladejo IsmailOlaoye Ganiyu Olatunji Olatunde Taiwo Adewole 2013Asian Pacific Journal of Tropical Biomedicine2013,3,9:1
16Labor market prospects for university graduates in Nigeria显示文摘ANDREW DABALENA BANKOLE ONIB OLATUNDE A ADEKOLAC 2001Higher Education Policy2001,14,2:1
17Some aspects of the biology of Synodontis schall(Bloch and Schneider)in zaria显示文摘Olatunde A A 1989 1989Nigeria J Aquat Sci1989,4,:1
18Global climate change:the empirical study of the sensitivity model in China's sustainable development,part 2显示文摘Ojekunle Z O Oyebamji F F Olatunde A O 2015Energy Sources Part A:Recovery Utilization and Environmental Effects2015,37,8:1
19Soil seed bank of an upland calcareous grassland after 6 years of climate and management manipulations显示文摘Olatunde Akinola M Ken Thompson Buckland S M 1998Journal of Applied Ecology1998,35,:1
20Global climate change: The empirical study of the sensitivity model in China's sustainable development, part 2显示文摘Ojekunle Z O Oyebamji F F Olatunde A O 2015Energy Sources Part A: Recovery Utilization and Environmental Effects2015,37,8:1
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