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| 1 | Organic Light Emitting Diodes with Lithium Contained Alq3 as Electron Injection Layer显示文摘lNovel lithium doped tris 8 hydroxylquinoline aluminium(Alq3:Li) layer is deposited between emission layer and electron injection aluminium electrode as an electron injection assistant layer in different organic light emitting diodes(OLED) to lower the electron injection barrier. In these devices, Alq3 is used as emission layer, and a bilayer film of N,N bis (1 naphhyl) N,N diphenyl 1,1 biphenyle 4,4' diamine(NPB) and 4,4,4' tris(3 methyl phenylphenylamino) triphenylamine( m MTDATA) used as hole transport layer(HTL). The electroluminescent performance of devices with different thicknesses of Alq3∶Li shows that the insertion of the lithium doped Alq3 layer can reduce the turn on voltage by at least 2 volts, and the stability of devices with this lithium doped Alq3 layer is improved too. It can also change the efficiency of devices. Compared with an ultra thin lithium fluoride(LiF) layer, Alq3∶Li sheet gives similar effects but higher efficiency and can be much thicker and hence it is easier to control the deposition. | Zugang Liu 1,* and J. L. Pinto 21. Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PF, UK 2. Departamento de Física, Universidade de Aveiro, 3810 194 Aveiro, Portuga | 2002 | Chemical Research in Chinese Universities2002,18,2: | 2 |
| 2 | Myeloidcell-lineage and premylocytic-stage-specific-expression of the mouse myeloperoxidase gene is controlled at initiation as well as elongation levels of transcription显示文摘The myeloperoxidase (MPO) is an important microbicidal protein present at high concentration in the primary granule of mature granulocyte and its expression is regulated in both myeloidcell-lineage and premyelocytic-stagespecific manners. A better understanding of the underlying control mechanisms should provide insights into the temporal and co-ordinate regulation of the gene expression during granulopoiesis. We have identified its promoter by mapping the start(s) of transcription using various molecular approaches together with demonstrating the promoter function of the relevant DNA segment in a transient transfection reporter assay. Besides the major start of transcription mapped at G residue, 11 nucleotide upstream of the 3’ end of exon 0, the usage of that is specific to the MPO expressing cell lines, we have shown that irrespective of the MPO-expression status of the hematopoietic cells, transcription occurs broadly within a two kb region upstream of the 5’ proximity of the gene, and is largely terminated in nitron 2. These data support a model of the pre myelocytic-stage-specific MPO expression, the control of which is operated at initiation as well as elongation levels of transcription. | ZHU JING DE (Department of Medical Oncology, University of Glasgow,Glasgow G61 1BD, UK) | 1999 | Cell Research1999,9,2: | 2 |
| 3 | Diagnosis of Epstein-Barr virus infection in hairy leukoplekia by using nucleic acid hybridization and noninvasive techniques 显示文摘 | De Souza YG Freese UK Greenspan D | 1990 | J Clin Microbiol1990,28,12: | 1 |
| 4 | Effectiveness of sutureless percutaneous placement of cuffed tunneled hemodialysis catheters applying statlock attachment devices显示文摘 | Teichgr(a)ber UK de Bucourt M Gebauer B | | 0,,01: | 1 |
| 5 | Primary plasma cell leukemia with initial cutaneous involvement and IgA biclonal gammopathy显示文摘 | Chattopadhyay A Nath UK De R | 2008 | Ann Hematol2008,87,3: | 1 |
| 6 | Modulation of the unfolded protein response by GRP78 in prostate cancer显示文摘 | de Ridder G Ray R Misra UK | 2011 | Methods Enzymol2011,489,2: | 1 |
| 7 | An E2F/miR-20a auto-regulatory feedback loop显示文摘 | Sylvestre Y De Guire V Querido E Mukhopadhyay UK Bourdeau V Maior F | 2007 | J Biol Chem2007,282,: | 1 |
| 8 | ASA elass is a reliable independent predictor of medical complications and mortality following surgery显示文摘 | Hackett NJ De Oliveira GS Jain UK | 2015 | J Surg2015,18,: | 1 |
| 9 | Design of immunoliposomes directed against human ovarian carcinoma显示文摘 | Nassander UK Steerenberg PA De Jong WH | 1995 | Biochem Biophys Acta1995,1235,1: | 1 |
| 10 | Accountants Divided:Research Selectivity and Academic Accounting Labor UK Universities显示文摘 | Sandra Harley De Montfort University Leicester UK | 2000 | Critical Perspectives on Accounting (2000)112000,559,: | 1 |
| 11 | Effectiveness ofsutureless percutaneous placement of cuffed tunneled hemodialysiscatheters applying Statlock attachment devices显示文摘 | Teichgraber UK de Bucourt M Gebauer B | 2011 | J Vase Access2011,12,: | 1 |
| 12 | Correlations among Anaplas- ma marginale parasitemia and markers of oxidative stress in cross- bred calves显示文摘 | De UK Dey S Banerjee PS | 2012 | Trop Anita Health Prod2012,44,3: | 1 |
| 13 | X-ray struc- ture of human aquaporin 2 and its implication for nephrogenic di- abetes insipidus and trafficking显示文摘 | FRICK A ERIKSSON UK DE MATTIA F | 2014 | Proe Natl Acad Sci USA2014,111,17: | 1 |
| 14 | Modulation of the unfolded protein response by GRP78 in prostate cancer显示文摘 | De Ridder G Ray R Misra UK etl | 2011 | Methods Enzymol2011,489,: | 1 |
| 15 | 用基因操作法改良糖甜菜(英)显示文摘甜菜的产糖量占世界蔗糖产量的40%,从碳同化角度来说,甜菜是极高效的温带作物之一,但用基因操作法仍有提高其产质量的潜力。对甜菜贮藏器官发育过程的解剖、生理和蔗糖积累的研究,为制定增加产量和减少环境对甜菜生长影响的策略奠定了理论基础。为促进对发育操作过程以达到上述这些目标,必须增强对细胞分裂的调节机制的认识。我们先研究植物激素限定细胞分裂的方式,随后研究调节细胞分裂的一些分子生物学特征。目前,我们已分离和鉴定了一些与甜菜细胞周期相关的基因序列,并用甜菜细胞悬浮培养对这些与细胞分裂调节相关的基因表达进行了研究,细胞分裂调节基因特定位点表达的策略已被确定,进一步优化甜菜转化系统的研究正日趋完善。通过这个途径,有希望获得高根产、高含糖、高汁液纯度和低环境影响的甜菜植株。 | ( MC Elliott,DF Chen,MR Fowler,MJ Kirby,M Kubalakova,NW Scott,CL Zhang and A Slater The Norman Borlaug Institute for Plant Science Research,De Montfort University,Scraptoft, Leicester,LE7 9SU,UK) | 1996 | 中国糖料1996,,1: | 0 |