Results 121 to 130 of about 1,105 (159)

The (3 + 1)-dimensional superspace description of the commensurately modulated structure of p-chlorobenzamide (α-form) and its relation to the γ-form

Zeitschrift für Kristallographie - Crystalline Materials, 2003
Abstract The room temperature structure (α-form) of the organic compound p-chlorobenzamide, C7H6ClNO, can be described as a classical three-dimensional periodic superstructure (α S) and also as a commensurately modulated structure (α M) in (3 + 1)-dimensional superspace.
A. Schönleber, P. Pattison, G. Chapuis
openaire   +1 more source

Incommensurate versus Commensurate Description of the A_xBX₃ Hexagonal Perovskite-Type Structure. Sr_1.2872NiO₃ Incommensurate Composite Compound Example

Chemistry of Materials, 1998
We report a new structure determination of the Sr1.2872NiO3 incommensurate composite hexagonal perovskite compound. Three different refinement strategies are presented:  (i) a 3D supercell approximation with a nonharmonic development of the atomic displacement factor, (ii) an original (3+1)D incommensurate composite description with the use of crenel ...
M. Evain, F. Boucher, O. Gourdon, V. Petricek, M. Dusek, P. Bezdicka   +5 more
openaire   +1 more source

Can We Utilize Pre-trained Language Models within Causal Discovery Algorithms?

arXiv.org, 2023
Scaling laws have allowed Pre-trained Language Models (PLMs) into the field of causal reasoning. Causal reasoning of PLM relies solely on text-based descriptions, in contrast to causal discovery which aims to determine the causal relationships between ...
Chanhui Lee, Juhyeon Kim, Yongjun Jeong, Juhyun Lyu, Junghee Kim, Sangmin Lee, Sangjun Han, Hyeokjun Choe, Soyeon Park, Woohyung Lim, Sungbin Lim, Sanghack Lee Department of Artificial Intelligence, Korea University, Graduate School of Science, Seoul National University, Department of Materials Science, Engineering, Unist, Data Intelligence Laboratory, LG AI Research, Department of Statistics, Snu Astronomy Research Center   +21 more
semanticscholar   +1 more source

Atomic and electronic reconstruction at the van der Waals interface in twisted bilayer graphene

Nature Materials, 2018
Control of the interlayer twist angle in two-dimensional van der Waals (vdW) heterostructures enables one to engineer a quasiperiodic moiré superlattice of tunable length scale1–8.
H. Yoo, Rebecca Engelke, S. Carr, S. Fang, Kuan Zhang, Paul Cazeaux, S. H. Sung, R. Hovden, A. W. Tsen, T. Taniguchi, Kenji Watanabe, G. Yi, Miyoung Kim, M. Luskin, E. Tadmor, E. Kaxiras, P. Kim   +16 more
semanticscholar   +1 more source

Superspace-group description of short-period commensurately modulated crystals

Acta Crystallographica Section A Foundations of Crystallography, 1987
The symmetry of superstructures is described by an ordinary three-dimensional space group, based on a unit cell which is a multiple of the basic structure unit cell. Alternatively, superstructures can be looked upon as commensurately modulated structures. Then, the structure is described by its basic structure plus some distortion wave.
openaire   +2 more sources

Forms of ethical dilemmas in industrial-organizational psychology

Industrial and Organizational Psychology, 2021
Professional ethics has not been a major focus in industrial-organizational (I-O) psychology—in comparison with our study of unethical behavior in organizations.
J. Lefkowitz
semanticscholar   +1 more source

Landau Model of the Phase Transitions for Description of Commensurate Polar Smectic Structures

Ferroelectrics, 2012
Calculations of polar structures with frustration interaction are often difficult and require complicated numerical calculations. A simple approach based on Landau model is given to describe the manifold of commensurate structures. The power of the used method is shown on the example of polar liquid crystals.
openaire   +1 more source

Slipping and fluidisation in active crystalline rotors.

Soft Matter
In equilibrium, commensurability between sliding surfaces underpins our understanding of nanoscale friction and yielding in crystals. However, these concepts have only recently begun to be imported into the realm of active matter.
Abraham Mauleon-Amieva, T. Liverpool, I. Williams, Anton Souslov, C. Royall   +4 more
semanticscholar   +1 more source

Making best practice portals attractive to policymakers

European Journal of Public Health
The Finnish Best Practice Portal (FBPP) has been under development since 2019, and will officially launch at the EPH conference 2025 in Helsinki - a major step for evidence-based practice in Finland.
M. Kylänen
semanticscholar   +1 more source

On low dimensional bases of natural bundles for compact homogeneous spaces

Izvestiya: Mathematics
We describe the bases of dimension $\le 5$ of natural bundles of compact homogeneous spaces. The description is given up to commensurability (generated by passing to some finite covering).
V. Gorbatsevich
semanticscholar   +1 more source