Meeting report
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Aperiodic 2003

Belo Horizonte, Brazil, September 2003

Aperiodic 2003 was held at the Institute of Physics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil, September 8-13, 2003. The scope of the conference was designed to promote research on aperiodic systems, both from the experimental and theoretical points of view, and to encourage scientific exchange among groups working in the various fields of aperiodic materials. A total of 90 participants were present with an equal number of contributions from students and researchers from 22 countries of 5 continents. The papers presented were related to the following topics: incommensurate modulated structures, incommensurate composites, quasicrystals, mathematical modelling and symmetry, physical properties, structure determination, polytypes, and applications. Most of the prominent names in each area attended this conference. The sessions were organized into tutorials (4), oral presentations (20 invited) and posters. Most of the oral presentations were followed by very interesting discussions. Abstracts and proceedings of the congress are available at the website ( The proceedings will be published by Francis & Taylor as a special issue of Ferroelectrics.

A total of 19 scientists were granted partial support for travel and living expenses (2 from Brazil, 1 from Czech Republic, 1 from France, 1 from Germany, 2 from Mexico, 2 from Poland, 1 from Romania, 6 from Russia, 1 from Switzerland and 1 from Vietnam). In addition, 18 young scientists had their registration fee waived and ten students were partially or totally supported thanks to the funds granted by the IUCr.

Nivaldo Speziali, Iris L. Torriani