996 resultados para BON-13-AI.1


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From the Introduction. On October 12th the Nobel Committee announced that the annual Nobel Peace Prize would be awarded to the European Union for, “promoting peace, democracy and human rights over six decades”.1 This was a bit of good news for the EU who had produced nothing but bad press with the Euro Crisis, the bailouts of struggling countries like Greece, and protests in the southern member states of Spain, Portugal, and Italy. At such a momentous occasion the EU’s next challenge was to figure out who would be the rightful head of the EU to accept the award. The EU has made their decision by opting to send its top three officials Jose Manuel Barroso the President of the European Commission, Herman Van Rompuy the President of the European Council, and Martin Schulz the President of the European Parliament2 as a sign that the EU is not headed by one person but instead is an supranational economic and political bloc that seeks to unify the European continent. Their symbolic acceptance of the award is in response to what Geir Lundestad, the Secretary of the Norwegian Nobel Committee, called, “an accumulated record.”3 This record has ushered the EU into the international spotlight as a beacon for countries in the EU’s periphery to want to join the bloc.

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Mode of access: Internet.

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In this issue...Homecoming, Intramural Football, Cheerleaders, Poetry, Yellowstone Park, Snowflake-Springs, Karst Ranch, Butte Symphony, Surveying

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The Larned A. Waterman Iowa Nonprofit Resource Center is a University of Iowa interdisciplinary collaboration created to make more accessible educational and service programs focused on strengthening the operational capacity of Iowa nonprofit organizations. The Center works collaboratively with government agencies, nonprofit organizations and educational institutions to impart new knowledge through activities and provide information and training resources to help nonprofit organizations and interested persons throughout Iowa. We seek to build the capacity and develop the effectiveness of community-based organizations and enhance the overall effectiveness of local organizations in building communities.

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Tag & Release is the newsletter for the South Carolina Governor's Cup Billfishing Series, an official program of the South Carolina Department of Natural Resources in cooperation with the South Carolina Department of Parks, Recreation and Tourism and the Harry R.E. Hampton Memorial Wildlife Fund.

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A newly implemented G-matrix Fourier transform (GFT) (4,3)D HC(C)CH experiment is presented in conjunction with (4,3)D HCCH to efficiently identify H-1/C-13 sugar spin systems in C-13 labeled nucleic acids. This experiment enables rapid collection of highly resolved relay 4D HC(C)CH spectral information, that is, shift correlations of C-13-H-1 groups separated by two carbon bonds. For RNA, (4,3)D HC(C)CH takes advantage of the comparably favorable 1'- and 3'-CH signal dispersion for complete spin system identification including 5'-CH. The (4,3)D HC(C)CH/HCCH based strategy is exemplified for the 30-nucleotide 3'-untranslated region of the pre-mRNA of human U1A protein.

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Amorphous samples of polyether ketone with cardo(PEK-C) have been studied in the solution state by C-13, H-1 high-resolution NMR, The H-1 and C-13 1D NMR spectra were assigned using two dimensional chemical shift correlated spectroscopy, 2D homonuclear correlated(COSY) and heteronuclear correlated (HETCOR) spectroscopy present important information. In this work, the structural units of PEK-C was determined by NMR. For some peaks, these assignments are confirmed by two dimensional long-range heteronuclear correlation experiments, A little modification is made on the original C-13 peak assignments for the main chain, The symmetry and the isotacticity of the chain structure for PEK-C are obvious on NMR data.

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本文测定了一系列具有不同微观结构的1,2-聚丁二烯样品在四种溶剂的50.3MHz ~(13)C自旋-晶格弛豫时间(T_1)和核Overhauser效应(NOE)值。并用Schaefer logx~2相关时间分布模型对实验数据进行了拟合。研究了1,2-聚丁二烯在溶液中的~(13)C-NMR弛豫的溶剂效应及其与结构的关系。发现聚合物与溶剂的溶解度参数之差△δ越大,聚合物在溶液中协同链段运动趋向越明显,~(13)C自旋-晶格弛豫速率(1/T_1)越大;1,2-链节较少,分子链较柔顺时,~(13)C-NMR弛豫受溶剂影响较显著。NMR弛豫参数对结构变化的反应在良溶剂中比在不良溶剂中敏感。