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resonance assignment is a key requirement in structural genomics research by NMR. In this context we present here two new pulse sequences, namely, HNN-A and HN(C)N-A that have Jordans Canada Shoes
been developed by simple modification of the previously described pulse sequences, HNN and HN(C)N [S.C. Panchal, N.S. Bhavesh, R.V. Hosur, Improved 3D triple resonance experiments, HNN and HN(C)N, for HN and 15N sequential correlations in (13C, 15N) labeled proteins: application to unfolded proteins, J. Biomol. NMR, 20 (2001) 135–147]. These increase the number of start/check points in HNN and/or HN(C)N spectra and hence help in pacing up resonance assignment in proteins.
Tetragonal Cr5B3-type Ce5Si3 shows a metamagnetic jump in the magnetization curve around 40 kOe at 1.3 K. In order to clarify the mechanism we performed specific heat, AC magnetic susceptibility and magnetization measurements on polycrystalline Ce5Si3-δ (0 δ 1) and (Ce1−xLax)5Si3-δ (0 x 1) in magnetic fields up to 150 kOe and in temperatures down to 0.4 K. The magnetic properties were hardly Air Jordan 6 Toronto
affected with δ, but strongly affected with x. For x = 0.25, the metamagnetism disappeared completely. Anomalous low temperature behavior including the metamagnetism is discussed in connection with a Ce-dimer model with ground singlet and excited triplet states.