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Träfflista för sökning "WFRF:(Haider M. R.) srt2:(2005-2009)"

Search: WFRF:(Haider M. R.) > (2005-2009)

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1.
  • Öhrn, Angelica, et al. (author)
  • Elastic scattering of 96 MeV neutrons from iron, yttrium, and lead
  • 2008
  • In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 77:2, s. 024605-
  • Journal article (peer-reviewed)abstract
    • Data on elastic scattering of 96 MeV neutrons from Fe-56, Y-89, and Pb-208 in the angular interval 10-70 degrees are reported. The previously published data on Pb-208 have been extended, as a new method has been developed to obtain more information from data, namely to increase the number of angular bins at the most forward angles. A study of the deviation of the zero-degree cross section from Wick's limit has been performed. It was shown that the data on Pb-208 are in agreement with Wick's limit while those on the lighter nuclei overshoot the limit significantly. The results are compared with modern optical model predictions, based on phenomenology and microscopic nuclear theory. The data on Fe-56, Y-89, and Pb-208 are in general in good agreement with the model predictions.
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2.
  • Dufe, Veronica T, et al. (author)
  • Cloning, expression, characterisation and three-dimensional structure determination of Caenorhabditis elegans spermidine synthase
  • 2005
  • In: FEBS Letters. - : Wiley. - 1873-3468 .- 0014-5793. ; 579:27, s. 6037-6043
  • Journal article (peer-reviewed)abstract
    • The polyamine synthesis enzyme spermidine synthase (SPDS) has been cloned from the model nematode Caenorhabditis elegans. Biochemical characterisation of the recombinantly expressed protein revealed a high degree of similarity to other eukaryotic SPDS with the exception of a low affinity towards the substrate decarboxylated S-adenosylmethionine (K-m = 110 mu M) and a less pronounced feedback inhibition by the second reaction product 5 '-methylthioadenosine (IC50 = 430 mu M). The C elegans protein that carries a nematode-specific insertion of 27 amino acids close to its N-terminus was crystallized, leading to the first X-ray structure of a dimeric eukaryotic SPDS. (c) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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3.
  • Ford, Caroline S., et al. (author)
  • Selection of candidate coding DNA barcoding regions for use on land plants
  • 2009
  • In: Botanical journal of the Linnean Society. - : Oxford University Press (OUP). - 0024-4074 .- 1095-8339. ; 159:1, s. 1-11
  • Journal article (peer-reviewed)abstract
    • An in silico screen of 41 of the 81 coding regions of the Nicotiana plastid genome generated a shortlist of 12 candidates as DNA barcoding loci for land plants. These loci were evaluated for amplification and sequence variation against a reference set of 98 land plant taxa. The deployment of multiple primers and a modified multiplexed tandem polymerase chain reaction yielded 85-94% amplification across taxa, and mean sequence differences between sister taxa of 6.1 from 156 bases of accD to 22 from 493 bases of matK. We conclude that loci should be combined for effective diagnosis, and recommend further investigation of the following six loci: matK, rpoB, rpoC1, ndhJ, ycf5 and accD.
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  • Result 1-3 of 3

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