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《BMJ (Clinical research ed.)》1960,1(5178):1061-1062
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Adiabatic pulses have been widely used for broadband decoupling and spin inversion at high magnetic fields. In this paper we propose adiabatic pulses and supercycles that can be used at high magnetic fields like 800 or 900 MHz to obtain broadband TOCSY sequences with C,C or H,H J-transfer. The new mixing sequences are equal or even superior to the well known DIPSI-2,3 experiments with respect to bandwidth. They prove robust against pulse miscalibration and B1 inhomogeneity and are therefore attractive for fully automated spectrometer environments. These adiabatic mixing sequences have been incorporated in a novel z-filter HCCH-TOCSY experiment. 相似文献
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Nine blood group systems of goats were identified using 12 caprine reagents produced by absorption of alloimmune antisera.
The caprine C blood group system, possibly homologous to the ovine C blood group system, was characterized by two reagents
and shown to be controlled by three alleles,C
12,C
25, andC
−. A more complex blood group system of goats, designated G, was identified using three reagents and shown to be controlled
by six codominant alleles (G
10.19.20,G
10.19,G
10.20,G
10,G
19,G
20) and a recessive allele (G
−). A further seven one-factor two-allelic systems were identified by seven reagents. The nine genetic systems provided exclusion
probabilities of 0.479, 0.492, 0.548, and 0.572 in Australian Angora, Dairy, Cashmere, and Texan Angora goat breeds, respectively.
This work was supported by a grant from the Australian Stud Book, Alison Road, Randwick, New South Wales 2031, Australia. 相似文献
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