Acta Crystallographica Section A
Acta Crystallographica
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Volume 28| Part 6

ISSN: 2053-2733

November 1972 issue

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research papers

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On the application of phase relationships to complex structures. IV. The coincidence method applied to general phases

T. Debaerdemaeker and M. M. Woolfson

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Probabilistic connexion between one phase invariant and moduli of all structure factors

J. C. Messager and G. Tsoucaris

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The zellengleichen supergroups of the space groups

L. L. Boyle and J. E. Lawrenson

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Klassengleichen supergroup–subgroup relationships between the space groups

L. L. Boyle and J. E. Lawrenson

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On the occurrence of Zhdanov numbers 1, 2 and 3 in the zigzag sequence of cadmium iodide polytypes

R. Prasad and O. N. Srivastava

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Twinning in 5,5'-biisoxazole

M. Cannas, G. Carta and G. Marongiu

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Polarization phenomena in X-ray diffraction

P. Skalicky and C. Malgrange

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On the terminology of the phenomena of mutual crystal orientation

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On the interpretation of anisotropic temperature factors

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On the contributions of the internal modes of molecules to the Debye–Waller factors

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Elastic properties of ammonium oxalate hydrate, ammonium hydrogen oxalate hemihydrate, and ammonium tetroxalate dihydrate

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n-Beam lattice images. I. Experimental and computed images from W₄Nb₂₆O₇₇

J. G. Allpress, E. A. Hewat, A. F. Moodie and J. V. Sanders

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n-Beam lattice images. II. Methods of calculation

D. F. Lynch and M. A. O'Keefe

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The effect of freezing on precipitating solids

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The structure of liquids as revealed by the analysis of their radial distribution functions

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Thermal diffuse scattering in cubic powder patterns

C. B. Walker and D. R. Chipman

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Application of representation analysis to the magnetic structure of nickel chromite spinel

E. F. Bertaut and J. Dulac

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The dynamical scattering amplitude of an imperfect crystal. II. A relation between Takagi's dynamical equation and a more exact dynamical equation

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Invariant magneto-electric and piezomagnetic coefficients

P. Chandrasekhar and T. P. Srinivasan

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Shubnikov point groups and the property of `ferroelasticity'

A. P. Cracknell

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Vacancy short-range order in substoichiometric transition metal carbides and nitrides with the NaCl structure. I. Electron diffraction studies of short-range ordered compounds

J. Billingham, P. S. Bell and M. H. Lewis

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Vacancy short-range order in substoichiometric transition metal carbides and nitrides with the NaCl structure. II. Numerical calculation of vacancy arrangement

M. Sauvage and E. Parthé

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A lattice-dynamical treatment of the thermal-motion bond-length correction

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The thermal-motion bond-length correction for diatomic and triatomic molecules

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Molecular packing analysis

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Electron population analysis of accurate diffraction data. IV. Evaluation of two-center formalisms in least-squares refinement

D. S. Jones, D. Pautler and P. Coppens

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Determination of a probable reflexion symmetry by counting statistics shown in the example of the zeolite, NaP1

H. Schulz and C. Baerlocher

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Covariances of thermal parameters and their effect on rigid-body calculations

F. L. Hirshfeld and U. Shmueli

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Fast determination of the number of independent tensor components of physical properties of crystals with n-fold axes of symmetry (n > 2)

E. Dieulesaint and D. Royer

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short communications

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The coherent neutron scattering amplitude of ¹⁵N

M. Kuznietz and F. A. Wedgwood

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A mathematical procedure for superimposing atomic coordinates of proteins

A. D. McLachlan

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The a priori optimization of diffractometer data to achieve the minimum average variance in the electron density

R. C. G. Killean

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On the diffraction enhancement of symmetry. Erratum

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Some comments on cylindrical distribution functions, with special reference to X-ray studies of liquid crystals

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Comments on the paper The determination of cyclicity, hexagonality and other properties of polytypes by Dornberger-Schiff, Sebmittler & Farkas-Jahnke. Erratum

J. Kakinoki, E. Kodera and T. Aikami

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Comments on the short communication, A statistical evaluation of absorption by C. Katayama, N. Sakabe & K. Sakabe

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The usefulness of the generalized tangent formula

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Coherent neutron scattering amplitudes of Br and ¹²⁷I

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Anomalous neutron scattering and the question of ferroelectricity in ⁶Li(N₂H₅)SO₄

M. R. Anderson and I. D. Brown

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international union of crystallography

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Report of the Executive Committee for 1971

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book reviews

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Optique – formation et traitement des images by M. Françon

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Crystal structure analysis: a primer by J. P. Glusker and K. N. Trueblood

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Theory of thermal neutron scattering by W. Marshall and S. W. Lovesay

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Crystallographie et structure des solides by D. Weigel

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Symmetry of crystals by E. S. Fedorov

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Interpretation of electron diffraction patterns by K. W. Andrews, D. J. Dyson and S. R. Keown

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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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