The origin and efficiency of charge-to-spin conversion, known as the Edelstein effect (EE), has been typically linked to spin-orbit coupling mechanisms, which require materials with heavy elements within a non-centrosymmetric environment. Here we demonstrate that the high efficiency of spin-charge conversion can be achieved even without spin-orbit coupling in the recently identified coplanar p-wave magnets. The non-relativistic Edelstein effect (NREE) in these magnets exhibits a distinct phenomenology compared to the relativistic EE, characterized by a strongly anisotropic response and an out-of-plane polarized spin density resulting from the spin symmetries. We illustrate the NREE through minimal tight-binding models, allowing a direct comparison to different systems. Through first-principles calculations, we further identify the nodal p-wave candidate material CeNiAsO as a high-efficiency NREE material, revealing a ~ 25 times larger response than the maximally achieved relativistic EE and other reported NREE in non-collinear magnetic systems with broken time-reversal symmetry. This highlights the potential for efficient spin-charge conversion in p-wave magnetic systems.
- Publikační typ
- časopisecké články MeSH
We present LOMS.cz (Luminescence, Optical and Magneto-optical Software), an open-source computational platform that addresses the long-standing challenge of standardizing Judd-Ofelt (JO) calculations in rare-earth spectroscopy. Despite JO theory's six-decade history as the fundamental framework for understanding [Formula: see text] transitions, the field lacks standardized computational methodologies for precise and reproducible parameter determination. LOMS integrates three key innovations: (1) automated computation of JO parameters, transition probabilities, branching ratios, and theoretical radiative lifetimes, (2) a dynamically expanding database of experimentally validated parameters enabling direct comparison between computed and empirical results, and (3) a novel Combinatorial JO (C-JO) analysis algorithm that systematically identifies optimal absorption band combinations to ensure reliable parameter extraction. As a proof-of-concept, we demonstrate how this computational framework enables rapid screening of spectroscopic parameters, allowing researchers to predict optical properties with enhanced reliability. By combining automated analysis with experimental validation through its integrated database, LOMS.cz establishes a standardized platform for accelerating the discovery and optimization of rare-earth-based photonic and optoelectronic materials.
- Publikační typ
- časopisecké články MeSH
This dataset presents multiaxial vibration signals collected from a multirotor unmanned aerial vehicle (UAV) operating in hover mode for the purpose of blade fault diagnosis. Vibration measurements were recorded at the geometric center of the UAV, where the centerlines of the four rotor arms intersect, using a triaxial accelerometer. The dataset captures variations across the X, Y, and Z axes under different blade fault conditions, including healthy, minor imbalance, severe imbalance, and screw loosening scenarios. Each flight scenario was repeated under controlled conditions to ensure consistency and high-quality labeling. The resulting soft-labeled dataset includes time-domain signals from numerous test flights and has been used in multiple prior studies involving classical and deep learning-based fault classification techniques. This curated data collection provides a valuable resource for researchers in UAV health monitoring, vibration analysis, and machine learning-based fault diagnosis. The dataset is particularly useful for the development and benchmarking of signal processing pipelines and classification models aimed at identifying blade-level faults in multirotor UAV systems.
- Publikační typ
- časopisecké články MeSH
OBJECTIVE: To investigate the impact of cumulative liver age on graft survival in liver transplant recipients. SUMMARY OF BACKGROUND DATA: Organ shortage has led to increased use of elderly donor livers for an ageing group of recipients, particularly in Europe. We hypothesized that hypothermic oxygenated perfusion (HOPE) enhances graft resilience against aging in livers from elderly donors. METHODS: This post-hoc analysis of the multicenter European HOPE-REAL study (NCT05520320) examined liver age in adult recipients of HOPE-treated brain-dead donor (DBD) livers. Cumulative liver age was defined as the sum of donor age and post-transplant graft survival. HOPE-treated DBD liver transplants were compared with a single-center control cohort of non-perfused DBD livers using propensity score matching to adjust for confounders. RESULTS: The median cumulative liver age was significantly higher in the HOPE-treated (n=768) cohort than in the non-perfused (n=863) group (69 vs. 61 years, P<0.001), yet graft survival was superior in the HOPE-treated group (log-rank P<0.001). After matching, cumulative liver age remained significantly higher in the HOPE group (P<0.001). Multivariate analysis identified HOPE as an independent predictor of cumulative liver age (P<0.001). CONCLUSIONS: HOPE treatment appears to mitigate the risks associated with transplanting elderly DBD livers, leading to excellent long-term survival in an ageing recipient population. These findings support broader adoption of HOPE to improve utilization of older donor livers and expand the donor pool.
- Klíčová slova
- cumulative liver age, liver transplantation, machine liver perfusion,
- Publikační typ
- časopisecké články MeSH
In the setting of haploidentical haematopoietic cell transplantation (HCT), post-transplant cyclophosphamide (PTCy) has dramatically reduced the incidence of graft-versus-host disease (GVHD) and non-relapse mortality. To further reduce GVHD incidence, the addition of antithymocyte globulin (ATG) to PTCy was evaluated in retrospective and non-comparative prospective studies showing promising results. We conducted a large retrospective analysis of the European Society for Blood and Marrow Transplantation (EBMT) registry to evaluate this approach. We analysed haploHCT with peripheral blood stem cells performed for haematological malignancies between 2014 and 2021. GVHD prophylaxis included either PTCy alone or PTCy+ATG. Four thousand five hundred and nineteen patients were analysed in the PTCy only group versus 675 with PTCy+ATG. Median follow-up was 29.80 months. In univariate analysis, 2-year GVHD-free, relapse-free survival (GRFS), relapse-free survival (RFS), overall survival (OS), cumulative incidence of relapse, non-relapse mortality (NRM) and chronic GvHD (cGVHD) were, respectively: 40.5% versus 37.5% (p = 0.098), 50.9% versus. 45.8% (p = 0.015), 56.9% versus 52.5% (p = 0.01), 24.2% versus 28.1% (p = 0.032), 25% versus 26.1% (p = 0.49) and 28.4% versus 18.5% (p < 0.001). aGVHD did not differ. After multivariable adjustment, OS and RFS were lower in the PTCy+ATG group: HR = 1.18 (p = 0.037) and HR = 1.18 (p = 0.027) and patients receiving PTCy+ATG had less cGVHD: HR = 0.68 (p = 0.004). In that retrospective analysis, the addition of ATG to PTCy for GVHD prophylaxis in haploHCT was associated with a reduction of cGVHD but also a worse OS and RFS.
- Klíčová slova
- BMT, GVHD, cell therapy,
- Publikační typ
- časopisecké články MeSH
Alkali halides find application not only under standard thermodynamic conditions but also at elevated temperatures, for example, in molten salt reactors or heat transfer and storage in solar applications. This study presents the temperature dependence of the thermochemical properties of their salts at normal pressure and temperatures ranging from 298.15 K up to the boiling points of the salts. The values were obtained using molecular simulations with polarizable DLM/2022-BK3 force fields. In most cases, our results show excellent agreement with experiments and often similar or better predictive capability compared to the most accurate polarizable models available in the literature developed for simulations of anhydrous alkali halides. Relatively worse predictions are observed for salts in which very small anions strongly polarize large cations. Our results for density, energy, chemical potential, and heat capacity of melts and crystals, and also melting temperatures, confirm the excellent phase transferability of the force fields used. They also serve as a substitute for missing experimental data for rubidium and cesium halides and highlight inaccuracies in some experimental data for the densities of LiBr, NaF, and NaBr crystals found in the literature.
- Publikační typ
- časopisecké články MeSH
The widespread presence of plasticizers in edible oils poses serious food safety concerns, necessitating the development of rapid, sensitive, and reliable analytical techniques for detecting trace-level contamination. Indeed, surface-enhanced Raman spectroscopy (SERS) offers high sensitivity, speed, and reproducibility without complex sample pretreatment for qualitative and quantitative analysis. Herein, we develop a superhydrophobic cyclic conjugated aromatic thiophene-triazole nanohoop (TTN) [4 + 4] as a high-performance substrate for SERS. The resulting TTN serves as a platform for anchoring plasmonic silver nanoparticles (denoted as TTN@AgNPs) and demonstrates exceptional detection and quantification of di-butyl phthalate (DBP) with a significant sensitivity reaching 20 ppb in edible vegetable oil. The superior performance of TTN@AgNP hybrids stems from their heterogeneous porous surface enriched with nitrogen and sulfur, which enhances the electron density, AgNP binding, and "hot spot" formation, while crucial interactions such as hydrogen bonding, van der Waals forces, and π-π stacking further facilitate DBP adsorption, enabling highly sensitive detection. Furthermore, density functional theory calculations elucidated the interaction mechanism between TTN@AgNPs and DBP, highlighting its selective detection. This work advances understanding of plasticizer contamination in edible oils and establishes a foundation for future research on identifying key contaminants and assessing variations across oils and packaging using SERS.
- Publikační typ
- časopisecké články MeSH
The current interpretation of excitation energy transfer (EET) processes in natural photosynthesis generally relies on Kasha's rule, suggesting that internal conversion (IC) processes usually outpace any EET between higher excited states. It is, however, known from research on artificial systems that Kasha's rule does not apply to many dyes, especially when found in assembled clusters analogous to photosynthetic chlorophyll (Chl)-protein complexes. In this contribution, a semiempirical Förster-type model is applied to otherwise well-investigated pigments of natural photosynthesis (Chls a, b, c1 and various carotenoids). Strong potential for anti-Kasha processes is identified in all investigated pigments, based on their high Coulomb coupling elements, similar to compounds with already known anti-Kasha properties. The pigments are further found to form strongly delocalized excitons, especially between the higher excited states usually responsible for anti-Kasha pathways. Test calculations with different pigment compositions for various natural light harvesting complexes (LHCII, CP24, CP26, CP29, FCP) demonstrate how the higher band EET network and absorbance could be affected by the presence of accessory pigments: Chl a-only networks should perform anti-Kasha EET, but this is suppressed by the presence of accessory pigments via several mechanisms (exciton disruption, spectral competition, energy sinks and fast, non-Chl a IC). The apparent "special" behavior of photosynthetic systems is thus resolved as the result of pigment mixtures.
- MeSH
- biologické pigmenty * chemie MeSH
- chlorofyl chemie MeSH
- fotosyntéza * MeSH
- karotenoidy chemie MeSH
- přenos energie MeSH
- světlosběrné proteinové komplexy chemie metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- biologické pigmenty * MeSH
- chlorofyl MeSH
- karotenoidy MeSH
- světlosběrné proteinové komplexy MeSH
We undertake electrochemical exfoliation of a 2D semiconductor platinum diselenide, PtSe2 and investigate the piezoresistance response of a solution-processed network. Due to the large PtSe2 aspect ratios, exceeding 300, we achieve conformal flake-to-flake junctions and good inter-flake electrical coupling. Our measured piezoresistive gauge factor is negative (-5.45), consistent with the intrinsic negative gauge factor of PtSe2. This negative network gauge factor implies that strain is transferred from the substrate to the nanosheets. However, detailed modelling shows that the strain transferred to the nanosheets is much smaller than the applied strain, showing that conformal junctions do not necessarily lead to good mechanical coupling between nanosheets. Our model implies that this gauge factor is consistent with a strain transfer efficiency of 8.5%. Our strain sensor also demonstrated a cyclic response for over 1000 cycles, enabling the sensor to be used in future flexible optoelectronics applications.
- Publikační typ
- časopisecké články MeSH
