Search Results - "Vaníček, Jiří"
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Isotope Effects on the Electronic Spectra of Ammonia from Ab Initio Semiclassical Dynamics
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (05-10-2023)“…Despite its simplicity, the single-trajectory thawed Gaussian approximation has proven useful for calculating the vibrationally resolved electronic spectra of…”
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2
Applicability of the Thawed Gaussian Wavepacket Dynamics to the Calculation of Vibronic Spectra of Molecules with Double-Well Potential Energy Surfaces
Published in Journal of chemical theory and computation (10-05-2022)“…Simulating vibrationally resolved electronic spectra of anharmonic systems, especially those involving double-well potential energy surfaces, often requires…”
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3
Finite-Temperature, Anharmonicity, and Duschinsky Effects on the Two-Dimensional Electronic Spectra from Ab Initio Thermo-Field Gaussian Wavepacket Dynamics
Published in The journal of physical chemistry letters (25-03-2021)“…Accurate description of finite-temperature vibrational dynamics is indispensable in the computation of two-dimensional electronic spectra. Such simulations are…”
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On-the-Fly Ab Initio Semiclassical Evaluation of Absorption Spectra of Polyatomic Molecules beyond the Condon Approximation
Published in The journal of physical chemistry letters (03-05-2018)“…To evaluate vibronic spectra beyond the Condon approximation, we extend the on-the-fly ab initio thawed Gaussian approximation by considering the…”
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5
Disruption in cerebellar and basal ganglia networks during a visuospatial task in cervical dystonia
Published in Movement disorders (01-05-2017)“…ABSTRACT Background: Although dystonia is traditionally conceptualized as a basal ganglia disorder, increasing interest has been directed at a different neural…”
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On-the-Fly ab Initio Semiclassical Dynamics of Floppy Molecules: Absorption and Photoelectron Spectra of Ammonia
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (04-06-2015)“…We investigate the performance of on-the-fly ab initio (OTF-AI) semiclassical dynamics combined with the thawed Gaussian approximation (TGA) for computing…”
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Semiclassical Approach to Photophysics Beyond Kasha’s Rule and Vibronic Spectroscopy Beyond the Condon Approximation. The Case of Azulene
Published in Journal of chemical theory and computation (14-04-2020)“…Azulene is a prototypical molecule with an anomalous fluorescence from the second excited electronic state, thus violating Kasha’s rule, and with an emission…”
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8
Suppression of immediate-early viral gene expression by herpesvirus-coded microRNAs: Implications for latency
Published in Proceedings of the National Academy of Sciences - PNAS (08-04-2008)“…A quantitative algorithm was developed and applied to predict target genes of microRNAs encoded by herpesviruses. Although there is almost no conservation…”
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9
Several Semiclassical Approaches to Time-resolved Spectroscopy
Published in Chimia (31-05-2017)“…Ultrafast spectroscopy allows molecular dynamics to be resolved on the femtosecond time scale. Whereas such short time scales obviously pose many experimental…”
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How to Find Molecules with Long-lasting Charge Migration?
Published in Chimia (26-04-2023)“…Under certain conditions, the ionization of a molecule may create a superposition of electronic states, leading to ultrafast electron dynamics. If controlled,…”
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Efficient use of accessibility in microRNA target prediction
Published in Nucleic acids research (01-01-2011)“…Considering accessibility of the 3'UTR is believed to increase the precision of microRNA target predictions. We show that, contrary to common belief, ranking…”
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12
Efficient Semiclassical Evaluation of Electronic Coherences in Polyatomic Molecules
Published in Chimia (29-06-2022)“…Exposing a molecule to intense light pulses may bring this molecule to a nonstationary quantum state, thus launching correlated dynamics of electronic and…”
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13
Number of program builds: Another criterium for assessing difficulty of a programming task?
Published in Informatics in education (01-07-2024)“…The paper discusses an alternative method of assessing the difficulty of pupils’ programming tasks to determine their age appropriateness. Building a program…”
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Understanding Loops: What are the Misconceptions of Lower-secondary Pupils?
Published in Informatics in education (01-09-2023)“…The article describes a study carried out on pupils aged 12–13 with no prior programming experience. The study examined how they learn to use loops with a…”
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15
Efficient estimators for quantum instanton evaluation of the kinetic isotope effects: application to the intramolecular hydrogen transfer in pentadiene
Published in The Journal of chemical physics (21-09-2007)“…The quantum instanton approximation is used to compute kinetic isotope effects for intramolecular hydrogen transfer in cis-1,3-pentadiene. Due to the…”
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16
Kinetic isotope effects and how to describe them
Published in Structural Dynamics (01-11-2017)“…We review several methods for computing kinetic isotope effects in chemical reactions including semiclassical and quantum instanton theory. These methods…”
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17
What factors affect a patient’s subjective perception of MRI examination
Published in Scientific reports (30-09-2024)“…MRI is becoming increasingly available and more common. However, it is a long examination, within a limited space, and making strong demands on the patient for…”
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Kinetic isotope effect in malonaldehyde determined from path integral Monte Carlo simulations
Published in Physical chemistry chemical physics : PCCP (07-01-2014)“…The primary H/D kinetic isotope effect on the intramolecular proton transfer in malonaldehyde is determined from quantum instanton path integral Monte Carlo…”
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Preoperative percutaneous Onyx embolization of carotid body paragangliomas with balloon test occlusion
Published in Frontiers in neurology (14-04-2023)“…The study aims to analyze our first experience with direct percutaneous embolization of carotid body tumors (CBTs) using ethylene-vinyl alcohol copolymer…”
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Sampling strategies for the Herman–Kluk propagator of the wavefunction
Published in Frontiers in physics (23-03-2023)“…When the semiclassical Herman–Kluk propagator is used for evaluating quantum-mechanical observables or time-correlation functions, the initial conditions for…”
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