Acta Crystallographica Section A

Foundations of Crystallography

Volume 46, Part 9 (September 1990)



research papers



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Acta Cryst. (1990). A46, 721-725    [doi:10.1107/S0108767390005153]

Isomorphous replacement with optimized anomalous scattering applied to protein crystallography

P. J. Baker, G. W. Farrants, T. J. Stillman, K. L. Britton, J. R. Helliwell and D. W. Rice



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Acta Cryst. (1990). A46, 725-730    [doi:10.1107/S0108767390004512]

Space-group frequencies of proteins and of organic compounds with more than one formula unit in the asymmetric unit

N. Padmaja, S. Ramakumar and M. A. Viswamitra



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Acta Cryst. (1990). A46, 730-734    [doi:10.1107/S0108767390004676]

Lorentz factor for oriented samples in powder diffractometry

L. Zevin



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Acta Cryst. (1990). A46, 735-742    [doi:10.1107/S0108767390005013]

A Metropolis-like algorithm to improve phases: some preliminary results

T. N. Bhat



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Acta Cryst. (1990). A46, 742-754    [doi:10.1107/S0108767390004901]

Space groups rare for organic structures. II. Analysis by arithmetic crystal class

A. J. C. Wilson



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Acta Cryst. (1990). A46, 754-763    [doi:10.1107/S0108767390004913]

X-ray birefringence and dichroism in lithium niobate, LiNbO3

A. Petcov, A. Kirfel and K. Fischer



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Acta Cryst. (1990). A46, 763-772    [doi:10.1107/S0108767390005505]

On differentiation of the scattering matrix in dynamical transmission electron diffraction

S. Speer, J. C. H. Spence and E. Ihrig


short communications



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Acta Cryst. (1990). A46, 772-776    [doi:10.1107/S0108767390005311]

The piezoelectric, elastic, photoelastic and Brillouin tensors for point groups with fivefold rotation axes

Y.-J. Jiang, L.-J. Liao, G. Chen and P.-X. Zhang


notes and news



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Acta Cryst. (1990). A46, 776    [doi:10.1107/S0108767390007115]

The Dorothy Hodgkin Prize of the British Crystallographic Association


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