Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

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FOUNDATIONS
ADVANCES

Volume 38| Part 1

ISSN: 2053-2733

January 1982 issue

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international union of crystallography

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Editorial. Division of Acta Crystallographica

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research papers

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An X-ray diffraction study of potassium

B. Bednarz and D. W. Field

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On anharmonicity in cadmium

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Phasing electron diffraction amplitudes with the molecular replacement method

M. G. Rossmann and R. Henderson

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A density-modification method for the improvement of poorly resolved protein electron-density maps

T. N. Bhat and D. M. Blow

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Lattice dynamical calculations of the mean square amplitudes of crystalline biphenyl

H. Bonadeo and E. Burgos

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The application of surface dislocation theory to the f.c.c.–b.c.c. interface

K. M. Knowles and D. A. Smith

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Treatment for the intensity problem of n-beam kinematical reflections in a dynamical formalism

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Symbols for OD groupoid families referring to OD structures (polytypes) consisting of more than one kind of layer

H. Grell and K. Dornberger-Schiff

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Three-dimensional strain-field information in convergent-beam electron diffraction patterns

R. W. Carpenter and J. C. H. Spence

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X-ray dichroism and polarized anomalous scattering of the uranyl ion

D. H. Templeton and L. K. Templeton

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The influence of the elimination of low-intensity data on the applicability range of R₂ in automated structure evaluations

G. H. Petit and A. T. H. Lenstra

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Groupes commutateurs des groupes cristallographiques

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L₃-edge anomalous scattering by gadolinium and samarium measured at high resolution with synchrotron radiation

L. K. Templeton, D. H. Templeton, R. P. Phizackerley and K. O. Hodgson

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Modulated structure of the NC-type (N = 5.5) pyrrhotite, Fe_1−xS

A. Yamamoto and H. Nakazawa

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Structure factor of modulated crystal structures

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Numerical applications of a quantum model for the coherent diffraction experiment

C. A. Frishberg and L. J. Massa

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On the estimation of |E| values of the squared structure on the basis of quartet invariants

N. van der Putten, H. Schenk and G. Tsoucaris

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A spherical charge distribution in chromium metal

S. Ohba, Y. Saito and S. Wakoh

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Le groupe P1 et ses sous-groupes. IV. Traitement systematique de la conservation reticulaire

M. Rolley-Le-Coz

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Phase extension and refinement. II. Application to metmyoglobin 2.0 Å data

G. J. Olthof and H. Schenk

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The maximum determinant method and the maximum entropy method

R. Narayan and R. Nityananda

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Information theory as a basis for the maximum determinant

P. L. Britten and D. M. Collins

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The layered perovskites (C₃H₇NH₃)₂MnCl₄ (PAMC) and (C₂H₅NH₃)₂MnCl₄ (EAMC): birefringence studies and the symmetry of the commensurately modulated ε phase of PAMC

I. H. Brunskill and W. Depmeier

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The use of spectroscopic data in the least-squares refinement of diffraction-obtained structure parameters. An example: K₂C₂O₄.H₂O

A. Eriksson, K. Hermansson, J. Lindgren and J. O. Thomas

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Application of two different aspherical-atom formalisms to low-temperature diffraction data on pyridinium-1-dicyanomethylide (C₈D₅N₃)

F. Baert, P. Coppens, E. D. Stevens and L. Devos

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Mechanisms for a rapid phase transformation of Nb₃Si from the Ti₃P structure to the Cr₃Si (A15) structure

B. W. Olinger, L. R. Newkirk and J. C. King

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The electronic state of O²⁻ in MgO studied by the Compton profile method

O. Aikala, T. Paakkari and S. Manninen

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short communications

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The rapid computation of mean path length for spheres and cylinders

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An X-ray diffraction study of lithium

B. Bendnarz and D. W. Field

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Six regular polygons at a four-connected vertex

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Optical measurements of anthracene

M. M. Julian and F. D. Bloss

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Discrimination between two enantiomorphously related space groups, without structure determination, by means of anomalous diffraction

J. Kroon, W. M. G. F. Pontenagel, H. Krabbendam and A. F. Peerdeman

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Recognition and use of systematically aberrant phase relationships. II. A simple method

D. Britton and J. D. Dunitz

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Recognition and use of systematically aberrant phase relationships. I: Erratum

D. Britton and J. D. Dunitz

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notes and news

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Notes and News

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book reviews

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Advances in liquid crystals, Vol. 4 edited by G. H. Brown

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Chemical physics of solids and their surfaces, Vol. 8 edited by M. W. Roberts and J. M. Thomas

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Electrical transport in solids, with particular reference to organic semiconductors by K. C. Kao and W. Hwang

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Topics in current physics. Vol. 25. Mössbauer spectroscopy. II. The exotic side of the method edited by U. Gonser

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Laser spectroscopy of solids edited by W. M. Yen and P. M. Selzer

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books received

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The analytic theory of point systems by J. D. Bernal

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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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