Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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FOUNDATIONS
ADVANCES

Volume 50| Part 3

ISSN: 2053-2733

May 1994 issue

Highlighted illustration

Cover illustration: A computer-simulated Fourier transform of the following object symbolizing a small bidimensional crystal: Courtesy of A. Soyer and M. Pilard.

lead articles

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Convergent-beam electron diffraction

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research papers

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Automated structure analysis in electron crystallography: phase determination with the tangent formula and least-squares refinement

D. L. Dorset and M. P. McCourt

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Kinematical structure factors from dynamical electron diffraction?

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The effect of a crystal monochromator on the local angular divergence of an X-ray beam

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Four-connected three-dimensional nets generated from the 1,3-stellated cube: topological analysis and distance-least-squares refinement

S. Han and J. V. Smith

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On integrating the techniques of direct methods with anomalous dispersion. III. Estimation of two-wavelength two-phase structure invariants

D. Y. Guo, R. H. Blessing and H. A. Hauptman

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Triplet and quartet relationships and the `positivity' postulate

A. Altomare, C. Giacovazzo, A. Guagliardi and D. Siliqi

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(4;2)-connected three-dimensional nets related to the mixed-coordinated framework structures AlPO₄-15, AlPO₄-CJ2 and AlPO₄-12

K. J. Andries and J. V. Smith

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Strengthening of quartet invariant estimates via the prior estimation of triplet relationships

M. C. Burla, G. Cascarano, C. Giacovazzo and A. Guagliardi

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A direct investigation of thermal vibrations of beryllium in real space through the maximum-entropy method applied to single-crystal neutron diffraction data

M. Takata, M. Sakata, S. Kumazawa, F. K. Larsen and B. B. Iversen

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Comparison between experimental and theoretical rocking curves in extremely asymmetric Bragg cases of X-ray diffraction

S. Kimura, J. Harada and T. Ishikawa

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Direct phase determination for macromolecular crystals using the multiple-diffraction technique and an in-house X-ray source

M.-T. Huang, C.-M. Wang and S.-L. Chang

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Disorder and the molecular packing of C₆₀ buckminsterfullerene: a direct electron-crystallographic analysis

D. L. Dorset and M. P. McCourt

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Strukturverfeinerung des Kompositkristalls im mehrdimensionalen Raum. II

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Smooth parabolas in transmission electron diffraction patterns

R. James, D. M. Bird and A. G. Wright

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Projection description of cubic quasiperiodic crystals with phason strains

R. Wang, C. Qin, G. Lu, Y. Feng and S. Xu

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The use of Sayre's equation in real space

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Novel treatment of the experimental data in the application of the maximum-entropy method to the determination of the electron-density distribution from X-ray experiments

R. Y. de Vries, W. J. Briels and D. Feil

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Solution scattering from biopolymers: advanced contrast-variation data analysis

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Proportional colored symmetry

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short communications

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Magnetic physical-property tensors

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Normalization factors for Kubic harmonic density functions

Z. Su and P. Coppens

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book reviews

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P. P. Ewald and his dynamical theory of X-ray diffraction. (IUCr Monograph on Crystallography No. 2) edited by D. W. J. Cruickshank, H. J. Juretschke and N. Kato

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Advances

Recently published Advances articles are given below.

Interpretation of angular symmetries in electron nanodiffraction patterns from thin amorphous specimens. A. C. Y. Liu, G. R. Lumpkin, T. C. Petersen, J. Etheridge & L. Bourgeois (2015). Acta Cryst. A71, doi:10.1107/S2053273315011845.

Identification of inversion domains in KTiOPO₄ via resonant X-ray diffraction. F. Fabrizi, P. A. Thomas, G. Nisbet & S. P. Collins (2015). Acta Cryst. A71, 361-367.

Partial order among the 14 Bravais types of lattices: basics and applications. H. Grimmer (2015). Acta Cryst. A71, 143-149.

SHELXT - Integrated space-group and crystal-structure determination. G. M. Sheldrick (2015). Acta Cryst. A71, 3-8.

Special issues

Mathematical Crystallography

Bragg centennial issue

Laue centennial issue

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