Faculty of Mathematics and Physics: Recent submissions
Now showing items 1-20 of 131
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Is video games' effect on attitudes universal? Results from an empirical study comparing video games' impact on the attitude change of players with different backgrounds
original article
open access
published version
2024
,Journal of Computer Assisted Learning
,40
(2)
Existing studies confirm that some video games can change players' attitudes. However, since we do not know the specific elements responsible for attitude change, the potential of video games to achieve desired educational ...
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Random Embeddings of Graphs: The Expected Number of Faces in Most Graphs is Logarithmic
article in reviewed proceedings
open access
published version
2024
,Society for Industrial and Applied Mathematics
,Proceedings of the 2024 Annual ACM-SIAM Symposium on Discrete Algorithms (SODA)
A random 2-cell embedding of a connected graph G in some orientable surface is obtained by choosinga random local rotation around each vertex. Under this setup, the number of faces or the genus of thecorresponding 2-cell ...
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Learning Support Systems: A Practical Guide to E-learning at CU
uncertified methodology
open access
draft
2024
,Praha
,Univerzita Karlova, Nakladatelství Karolinum
This guide introduces the e-learning support tools that are used most frequently at Charles University and that you may encounter during your studies. It will also help you to avoid the most common obstacles associated ...
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On ordered Ramsey numbers of matchings versus triangles
article in reviewed proceedings
open access
accepted version
2023
,Praha
,Masaryk University Press
,Proceedings of the 12th European Conference onCombinatorics, Graph Theory and Applications
For graphs $G^<$ and $H^<$ with linearly ordered vertex sets, the \emph{ordered Ramsey number} $r_<(G^<,H^<)$ is the smallest positive integer $N$ such that any red-blue coloring of the edges of the complete ...
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Vliv přípravného studia učitelů na rozvoj jejich profesního vidění
The Influence of Teacher Education on the Development of Their Professional Vision
original article
open access
published version
2022
,Studia paedagogica
,27
(1)
Profesní vidění jako schopnost identifikovat ve viděném podstatné jevy, připisovat jim význam a uvažovat nad nimi v souladu s dostupným poznáním je důležitá součást profesního rozvoje učitele, neboť učitelovo vnímání situací ...
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Enhanced thermally-activated skyrmion diffusion with tunable effective gyrotropic force
original article
open access
published version
2023
,Nature Communications
,14
(1)
Magnetic skyrmions, topologically-stabilized spin textures that emerge in magnetic systems, have garnered considerable interest due to a variety of electromagnetic responses that are governed by the topology. The topology ...
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Search for new heavy resonances decaying to WW, WZ, ZZ, WH, or ZH boson pairs in the all-jets final state in proton-proton collisions at √s=13 TeV
original article
open access
published version
2023
,Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
,844
(2023)
A search for new heavy resonances decaying to WW, WZ, ZZ, WH, or ZH boson pairs in the all-jets final state is presented. The analysis is based on proton-proton collision data recorded by the CMS detector in 2016-2018 at ...
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Optimization of quasi-hemispherical CdZnTe detectors by means of first principles simulation
original article
open access
published version
2023
,Scientific Reports
,13
(1)
In this paper we present the development of quasi-hemispherical gamma-ray detectors based on CdZnTe. Among the possible single-polarity electrode configurations, such as coplanar, pixelated, or virtual Frisch-grid geometries, ...
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Effect of UV Irradiation on the Growth of ZnO:Er Nanorods and Their Intrinsic Defects
original article
open access
published version
2023
,Chemosensors
,11
(3)
Nanorods of erbium-doped zinc oxide (ZnO:Er) were fabricated using a hydrothermal method. One batch was prepared with and another one without constant ultraviolet (UV) irradiation applied during the growth. The nanorods ...
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Corpus-Based Multilingual Event-type Ontology: Annotation Tools and Principles
article in reviewed proceedings
open access
published version
2023
,Washington, D.C., USA
,Association for Computational Linguistics
,TLT 2023 - 21st International Workshop on Treebanks and Linguistic Theories (TLT, GURT/SyntaxFest 2023), Proceedings of the Conference
,21
In the course of building a multilingual Event-type Ontology resource called SynSemClass, it was necessary to provide the maintainers and the annotators with a set of tools to facilitate their job, achieve data format ...
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Time-resolved circular dichroism of excitonic systems: theory and experiment on an exemplary squaraine polymer
original article
open access
published version
2023
,Chemical Science
,14
(35)
Experimental and theoretical foundations for femtosecond time-resolved circular dichroism (TRCD) spectroscopy of excitonic systems are presented. In this method, the system is pumped with linearly polarized light and the ...
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Interleaflet organization of membrane nanodomains: What can(not) be resolved by FRET?
original article
open access
published version
2023
,Biophysical Journal
,122
(11)
Plasma membranes as well as their simplified model systems show an inherent nanoscale heterogeneity. As a result of strong interleaflet interactions, these nanoheterogeneities (called here lipid nanodomains) can be found ...
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Reducing the Cost of Neural Network Potential Generation for Reactive Molecular Systems
original article
open access
published version
2023
,Journal of Chemical Theory and Computation
,19
(19)
Although machine learning potentials have recently had a substantial impact on molecular simulations, the construction of a robust training set can still become a limiting factor, especially due to the requirement of a ...
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Search for new physics in the τ lepton plus missing transverse momentum final state in proton-proton collisions at √s=13 TeV
original article
open access
published version
2023
,Journal of High Energy Physics
,2023
(9)
A search for physics beyond the standard model (SM) in the final state with a hadronically decaying tau lepton and a neutrino is presented. This analysis is based on data recorded by the CMS experiment from proton-proton ...
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Search for Z′ bosons decaying to pairs of heavy Majorana neutrinos in proton-proton collisions at √s=13 TeV
original article
open access
published version
2023
,Journal of High Energy Physics
,2023
(11)
A search for the production of pairs of heavy Majorana neutrinos (N-& ell;) from the decays of Z ' bosons is performed using the CMS detector at the LHC. The data were collected in proton-proton collisions at a center-of-mass ...
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On mechanical twinning in tetragonal lattice
original article
open access
published version
2023
,Philosophical Magazine
,103
(2)
The theory of mechanical twinning is revisited for the case of face-centred tetragonal lattices. The motivation is an imprecision in the determination of twinning shear vector magnitude, which occurs repeatedly in the ...
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Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at √s=510 GeV in (p)over-right-arrow + (p)over-right-arrow Collisions
original article
open access
published version
2023
,Physical Review Letters
,130
(25)
We present measurements of the cross section and double-helicity asymmetry ALL of direct-photon production in p ⃗ + p ⃗ collisions at ffis ffi p = 510 GeV. The measurements have been performed at midrapidity (I & eta;I ...
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Uma introdução à análise de massas de ar, frentes e ciclones extratropicais na América do Sul
An Introduction to the analysis of air masses, fronts, andextratropical cyclones in South America
review
open access
published version
2023
,Revista Brasileira de Geografia Física
,16
(6)
Massas de ar, frentes e ciclones extratropicais são sistemas meteorológicos que comumente afetam o tempo na América do Sul, incluindo o Brasil. A passagem de uma frente fria por uma dada região pode causar, por exemplo, ...
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Wet etching of gold on graphene for high-quality resist-free graphene surfaces
original article
open access
published version
2023
,Nano Express
,4
(3)
Wet etching of gold on graphene is challenging due to the weak adhesion of the resist mask to graphene. We report an operating procedure for alkali ion-free wet etching of gold on graphene using a mixture of hydrochloric ...
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Laser-induced transient currents in CdZnTe quasi-hemispherical radiation detector
original article
open access
published version
2023
,Applied Physics Letters
,123
(18)
Laser-induced transient currents were measured after applying pulsed or direct-current bias to a CdZnTe quasi-hemispherical radiation detector with gold contacts. The temporal evolution of current transients was analyzed ...
