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The section of the Bilbao Crystallographic Server (https://www.cryst.ehu.es) dedicated to subperiodic groups includes the program , which gives online access to the complete database of maximal subgroups of subperiodic groups. All maximal non-isotypic subgroups as well as all maximal isotypic subgroups of indices up to 9 are listed individually, together with the series of maximal isotypic subgroups of subperiodic groups. These data were compared with those of Litvin [(2013), ], which revealed several differences, discussed here in detail.
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http://dx.doi.org/10.1107/S1600576725001499 | DOI Listing |
J Appl Crystallogr
April 2025
Departamento de Física Universidad del País Vasco UPV/EHU Spain.
The section of the Bilbao Crystallographic Server (https://www.cryst.ehu.
View Article and Find Full Text PDFJ Appl Crystallogr
June 2024
Faculty of Physics, University of Belgrade, Studentski trg 12, 11001 Belgrade, Serbia.
Understanding the symmetries described by subperiodic groups - frieze, rod and layer groups - has been instrumental in predicting various properties (band structures, optical absorption, Raman spectra, diffraction patterns, topological properties .) of 'low-dimensional' crystals. This knowledge is crucial in the tailored design of materials for specific applications across electronics, photonics and materials engineering.
View Article and Find Full Text PDFBiosystems
May 2024
Theoretical Bioinformatics, ICube, C.N.R.S., University of Strasbourg, 300 Boulevard Sébastien Brant, 67400 Illkirch, France. Electronic address:
A massive statistical analysis based on the autocorrelation function of the circular code X observed in genes is performed on the (eukaryotic) introns. Surprisingly, a circular code periodicity 0 modulo 3 is identified in 5 groups of introns: birds, ascomycetes, basidiomycetes, green algae and land plants. This circular code periodicity, which is a property of retrieving the reading frame in (protein coding) genes, may suggest that these introns have a coding property.
View Article and Find Full Text PDFPathogens
November 2023
Indian Council of Medical Research-Vector Control Research Centre, Puducherry 605006, India.
Lymphatic Filariasis (LF) affects over 120 million people in 72 countries, with sub-periodic filariasis common in the Pacific. has three physiological races, each with a unique microfilarial periodicity, and each race is isolated to a specific geographical region. Sub-periodic .
View Article and Find Full Text PDFActa Crystallogr A Found Adv
November 2021
Departamento de Física, Universidad del País Vasco UPV/EHU, Spain.
The section of the Bilbao Crystallographic Server (https://www.cryst.ehu.
View Article and Find Full Text PDF