316,237 results on '"Reinhard, A."'
Search Results
202. Assaults in public places: interesting numbers from a North American university city
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Felson, Marcus and Reinhard, Daniel
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- 2024
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203. Physics-guided Shape-from-Template: Monocular Video Perception through Neural Surrogate Models
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Stotko, David, Wandel, Nils, and Klein, Reinhard
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Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Machine Learning - Abstract
3D reconstruction of dynamic scenes is a long-standing problem in computer graphics and increasingly difficult the less information is available. Shape-from-Template (SfT) methods aim to reconstruct a template-based geometry from RGB images or video sequences, often leveraging just a single monocular camera without depth information, such as regular smartphone recordings. Unfortunately, existing reconstruction methods are either unphysical and noisy or slow in optimization. To solve this problem, we propose a novel SfT reconstruction algorithm for cloth using a pre-trained neural surrogate model that is fast to evaluate, stable, and produces smooth reconstructions due to a regularizing physics simulation. Differentiable rendering of the simulated mesh enables pixel-wise comparisons between the reconstruction and a target video sequence that can be used for a gradient-based optimization procedure to extract not only shape information but also physical parameters such as stretching, shearing, or bending stiffness of the cloth. This allows to retain a precise, stable, and smooth reconstructed geometry while reducing the runtime by a factor of 400-500 compared to $\phi$-SfT, a state-of-the-art physics-based SfT approach.
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- 2023
204. Opportunities for Gas-Phase Science at Short-Wavelength Free-Electron Lasers with Undulator-Based Polarization Control
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Ilchen, Markus, Allaria, Enrico, Ribič, Primož Rebernik, Nuhn, Heinz-Dieter, Lutman, Alberto, Schneidmiller, Evgeny, Tischer, Markus, Yurkov, Mikail, Calvi, Marco, Prat, Eduard, Reiche, Sven, Schmidt, Thomas, Geloni, Gianluca Aldo, Karabekyan, Suren, Yan, Jiawei, Serkez, Svitozar, Gao, Zhangfeng, Deng, Bangjie, Feng, Chao, Deng, Haixiao, Helml, Wolfram, Funke, Lars, Larsson, Mats, Vitali, Zhaunerchyk, Meyer, Michael, Mazza, Tommaso, Jahnke, Till, Doerner, Reinhard, Calegari, Francesca, Smirnova, Olga, Vozzi, Caterina, De Ninno, Giovanni, Waetzel, Jonas, Berakdar, Jamal, Sadia, Bari, Schwob, Lucas, Rouxel, Jérémy R., Mukamel, Shaul, Bartschat, Klaus, Hamilton, Kathryn, Argenti, Luca, Douguet, Nicolas, Novikovskiy, Nikolay M., Demekhin, Philipp V., and Walter, Peter
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Physics - Atomic Physics ,Physics - Optics - Abstract
Free-electron lasers (FELs) are the world's most brilliant light sources with rapidly evolving technological capabilities in terms of ultrabright and ultrashort pulses over a large range of accessible photon energies. Their revolutionary and innovative developments have opened new fields of science regarding nonlinear light-matter interaction, the investigation of ultrafast processes from specific observer sites, and approaches to imaging matter with atomic resolution. A core aspect of FEL science is the study of isolated and prototypical systems in the gas phase with the possibility of addressing well-defined electronic transitions or particular atomic sites in molecules. Notably for polarization-controlled short-wavelength FELs, the gas phase offers new avenues for investigations of nonlinear and ultrafast phenomena in spin orientated systems, for decoding the function of the chiral building blocks of life as well as steering reactions and particle emission dynamics in otherwise inaccessible ways. This roadmap comprises descriptions of technological capabilities of facilities worldwide, innovative diagnostics and instrumentation, as well as recent scientific highlights, novel methodology and mathematical modeling. The experimental and theoretical landscape of using polarization controllable FELs for dichroic light-matter interaction in the gas phase will be discussed and comprehensively outlined to stimulate and strengthen global collaborative efforts of all disciplines.
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- 2023
205. OFDM-based Waveforms for Joint Sensing and Communications Robust to Frequency Selective IQ Imbalance
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Lang, Oliver, Hofbauer, Christian, Tockner, Moritz, Feger, Reinhard, Wagner, Thomas, and Huemer, Mario
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Electrical Engineering and Systems Science - Signal Processing - Abstract
Orthogonal frequency-division multiplexing (OFDM) is a promising waveform candidate for future joint sensing and communication systems. It is well known that the OFDM waveform is vulnerable to in-phase and quadrature-phase (IQ) imbalance, which increases the noise floor in a range-Doppler map (RDM). A state-of-the-art method for robustifying the OFDM waveform against IQ imbalance avoids an increased noise floor, but it generates additional ghost objects in the RDM [1]. A consequence of these additional ghost objects is a reduction of the maximum unambiguous range. In this work, a novel OFDM-based waveform robust to IQ imbalance is proposed, which neither increases the noise floor nor reduces the maximum unambiguous range. The latter is achieved by shifting the ghost objects in the RDM to different velocities such that their range variations observed over several consecutive RDMs do not correspond to the observed velocity. This allows tracking algorithms to identify them as ghost objects and eliminate them for the follow-up processing steps. Moreover, we propose complete communication systems for both the proposed waveform as well as for the state-of-the-art waveform, including methods for channel estimation, synchronization, and data estimation that are specifically designed to deal with frequency selective IQ imbalance which occurs in wideband systems. The effectiveness of these communication systems is demonstrated by means of bit error ratio (BER) simulations.
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- 2023
206. Inferring Chemical Disequilibrium Biosignatures for Proterozoic Earth-Like Exoplanets
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Young, Amber V., Robinson, Tyler D., Krissansen-Totton, Joshua, Schwieterman, Edward W., Wogan, Nicholas F., Way, Michael J., Sohl, Linda E., Arney, Giada N., Reinhard, Christopher T., Line, Michael R., Catling, David C., and Windsor, James D.
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Astrophysics - Earth and Planetary Astrophysics - Abstract
Chemical disequilibrium quantified via available free energy has previously been proposed as a potential biosignature. However, exoplanet biosignature remote sensing work has not yet investigated how observational uncertainties impact the ability to infer a life-generated available free energy. We pair an atmospheric retrieval tool to a thermodynamics model to assess the detectability of chemical disequilibrium signatures of Earth-like exoplanets, emphasizing the Proterozoic Eon where atmospheric abundances of oxygen-methane disequilibrium pairs may have been relatively high. Retrieval model studies applied across a range of gas abundances revealed that order-of-magnitude constraints on disequilibrium energy are achieved with simulated reflected-light observations at the high abundance scenario and signal-to-noise ratios (50) while weak constraints are found at moderate SNRs (20\,--\,30) for med\,--\,low abundance cases. Furthermore, the disequilibrium energy constraints are improved by modest thermal information encoded in water vapor opacities at optical and near-infrared wavelengths. These results highlight how remotely detecting chemical disequilibrium biosignatures can be a useful and metabolism-agnostic approach to biosignature detection., Comment: Nature Astronomy. Supplementary information see https://zenodo.org/records/10093798 For Source Data see https://zenodo.org/records/8335447
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- 2023
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207. A Deep Learning Method for Simultaneous Denoising and Missing Wedge Reconstruction in Cryogenic Electron Tomography
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Wiedemann, Simon and Heckel, Reinhard
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Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Machine Learning - Abstract
Cryogenic electron tomography is a technique for imaging biological samples in 3D. A microscope collects a series of 2D projections of the sample, and the goal is to reconstruct the 3D density of the sample called the tomogram. Reconstruction is difficult as the 2D projections are noisy and can not be recorded from all directions, resulting in a missing wedge of information. Tomograms conventionally reconstructed with filtered back-projection suffer from noise and strong artifacts due to the missing wedge. Here, we propose a deep-learning approach for simultaneous denoising and missing wedge reconstruction called DeepDeWedge. The algorithm requires no ground truth data and is based on fitting a neural network to the 2D projections using a self-supervised loss. DeepDeWedge is simpler than current state-of-the-art approaches for denoising and missing wedge reconstruction, performs competitively and produces more denoised tomograms with higher overall contrast.
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- 2023
208. On the Validity of Credit-Based Shaper Delay Guarantees in Decentralized Reservation Protocols
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Maile, Lisa, Voitlein, Dominik, Grigorjew, Alexej, Hielscher, Kai-Steffen J., and German, Reinhard
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Computer Science - Networking and Internet Architecture - Abstract
Resource reservation is a fundamental mechanism for ensuring quality of service in time-sensitive networks, which can be decentralized by using reservation protocols. In the Ethernet technology Time-Sensitive Networking, this has been proposed in conjunction with the Credit-Based Shaper. For the reservation, the standards assume a maximum worst-case latency bound at each hop. However, we will show through formal analysis and simulation that these worst-case latency bounds are not safe. To face this, we propose an extension to the current standards to allow the reservation of time-sensitive traffic with reliable latency guarantees. The effectiveness of our approach is demonstrated through simulations of both synthetic and industrial networks. Finally, by providing additional information about neighboring devices, we could further increase the maximum reservable traffic by up to 20% in our test cases., Comment: Association for Computing Machinery (ACM)
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- 2023
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209. The Eclipse Layout Kernel
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Domrös, Sören, von Hanxleden, Reinhard, Spönemann, Miro, Rüegg, Ulf, and Schulze, Christoph Daniel
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Computer Science - Data Structures and Algorithms - Abstract
The Eclipse Layout Kernel (ELK) is a collection of graph drawing algorithms that supports compound graph layout and ports as explicit anchor points of edges. It is available as open-source library under an EPL license. Since its beginning, ELK has served both as a research vehicle for graph drawing algorithms, and as a practical tool for solving real-world problems. ELK and its transpiled JavaScript cousin elkjs are now included in numerous academic and commercial projects. Most of the algorithms realized in ELK are described in a series of publications. In this paper, the technical description concentrates on the key features of the flag-ship algorithm ELK Layered, the algorithm architecture, and usage. However, the main purpose of this paper is to give the broader view that is typically left unpublished. Specifically, we review its history, give a brief overview of technical papers, discuss lessons learned over the past fifteen years, and present example usages. Finally, we reflect on potential threats to open-source graph drawing libraries.
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- 2023
210. FPO++: Efficient Encoding and Rendering of Dynamic Neural Radiance Fields by Analyzing and Enhancing Fourier PlenOctrees
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Rabich, Saskia, Stotko, Patrick, and Klein, Reinhard
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Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Graphics - Abstract
Fourier PlenOctrees have shown to be an efficient representation for real-time rendering of dynamic Neural Radiance Fields (NeRF). Despite its many advantages, this method suffers from artifacts introduced by the involved compression when combining it with recent state-of-the-art techniques for training the static per-frame NeRF models. In this paper, we perform an in-depth analysis of these artifacts and leverage the resulting insights to propose an improved representation. In particular, we present a novel density encoding that adapts the Fourier-based compression to the characteristics of the transfer function used by the underlying volume rendering procedure and leads to a substantial reduction of artifacts in the dynamic model. Furthermore, we show an augmentation of the training data that relaxes the periodicity assumption of the compression. We demonstrate the effectiveness of our enhanced Fourier PlenOctrees in the scope of quantitative and qualitative evaluations on synthetic and real-world scenes.
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- 2023
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211. Robust Estimation of Realized Correlation: New Insight about Intraday Fluctuations in Market Betas
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Hansen, Peter Reinhard and Luo, Yiyao
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Economics - Econometrics ,Quantitative Finance - Statistical Finance ,Statistics - Applications - Abstract
Time-varying volatility is an inherent feature of most economic time-series, which causes standard correlation estimators to be inconsistent. The quadrant correlation estimator is consistent but very inefficient. We propose a novel subsampled quadrant estimator that improves efficiency while preserving consistency and robustness. This estimator is particularly well-suited for high-frequency financial data and we apply it to a large panel of US stocks. Our empirical analysis sheds new light on intra-day fluctuations in market betas by decomposing them into time-varying correlations and relative volatility changes. Our results show that intraday variation in betas is primarily driven by intraday variation in correlations.
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- 2023
212. Non-destructive depth reconstruction of Al-Al$_2$Cu layer structure with nanometer resolution using extreme ultraviolet coherence tomography
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Abel, Johann Jakob, Apell, Jonathan, Wiesner, Felix, Reinhard, Julius, Wünsche, Martin, Felde, Nadja, Schmidl, Gabriele, Plentz, Jonathan, Paulus, Gerhard G., Lippmann, Stephanie, and Fuchs, Silvio
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Condensed Matter - Materials Science ,Physics - Applied Physics ,Physics - Optics - Abstract
Non-destructive cross-sectional characterization of materials systems with a resolution in the nanometer range and the ability to allow for time-resolved in-situ studies is of great importance in material science. Here, we present such a measurements method, extreme ultraviolet coherence tomography (XCT). The method is non-destructive during sample preparation as well as during the measurement, which is distinguished by a negligible thermal load as compared to electron microscopy methods. Laser-generated radiation in the extreme ultraviolet (XUV) and soft x-ray range is used for characterization. The measurement principle is interferometric and the signal evaluation is performed via an iterative Fourier analysis. The method is demonstrated on the metallic material system Al-Al$_2$Cu and compared to electron and atomic force microscopy measurements. We also present advanced reconstruction methods for XCT which even allow for the determination of the roughness of outer and inner interfaces., Comment: First two authors contributed equally to this work and are ordered alphabetically. 14 pages
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- 2023
213. Polygenic dynamics underlying the response of quantitative traits to directional selection
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Götsch, Hannah and Bürger, Reinhard
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Quantitative Biology - Populations and Evolution - Abstract
We study the response of a quantitative trait to exponential directional selection in a finite haploid population at the genetic and the phenotypic level. We assume an infinite sites model, in which the number of new mutations per generation in the population follows a Poisson distribution (with mean $\Theta$) and each mutation occurs at a new, previously monomorphic site. Mutation effects are beneficial and drawn from a distribution. Sites are unlinked and contribute additively to the trait. Assuming that selection is stronger than random genetic drift, we model the initial phase of the dynamics by a supercritical Galton-Watson process. This enables us to obtain time-dependent results. We show that the copy-number distribution of the mutant in generation n, conditioned on non-extinction until n, is described accurately by the deterministic increase from an initial distribution with mean 1. This distribution is related to the absolutely continuous part $W^+$ of the random variable, typically denoted $W$, that characterizes the stochasticity accumulating during the mutant's sweep. On this basis, we derive explicitly the (approximate) time dependence of the mutant frequency distribution, of the expected mean and variance of the trait and of the expected number of segregating sites. Unexpectedly, we obtain highly accurate approximations for all times, even for the quasi-stationary phase where we refine classical results. In addition, we find that $\Theta$ is the main determinant of the pattern of adaptation at the genetic level, i.e., whether the initial allele-frequency dynamics are best described by sweep-like patterns at few loci or small allele-frequency shifts at many. The selection strength determines primarily the rate of adaptation. The accuracy of our results is tested by comprehensive simulations in a Wright-Fisher framework.
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- 2023
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214. Forum on immune digital twins: a meeting report
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Laubenbacher, Reinhard, Adler, Fred, An, Gary, Castiglione, Filippo, Eubank, Stephen, Fonseca, Luis L., Glazier, James, Helikar, Tomas, Jett-Tilton, Marti, Kirschner, Denise, Macklin, Paul, Mehrad, Borna, Moore, Beth, Pasour, Virginia, Shmulevich, Ilya, Smith, Amber, Voigt, Isabel, Yankeelov, Thomas E., and Ziemssen, Tjalf
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Quantitative Biology - Other Quantitative Biology - Abstract
Medical digital twins are computational models of human biology relevant to a given medical condition, which can be tailored to an individual patient, thereby predicting the course of disease and individualized treatments, an important goal of personalized medicine. The immune system, which has a central role in many diseases, is highly heterogeneous between individuals, and thus poses a major challenge for this technology. If medical digital twins are to faithfully capture the characteristics of a patient's immune system, we need to answer many questions, such as: What do we need to know about the immune system to build mathematical models that reflect features of an individual? What data do we need to collect across the different scales of immune system action? What are the right modeling paradigms to properly capture immune system complexity? In February 2023, an international group of experts convened in Lake Nona, FL for two days to discuss these and other questions related to digital twins of the immune system. The group consisted of clinicians, immunologists, biologists, and mathematical modelers, representative of the interdisciplinary nature of medical digital twin development. A video recording of the entire event is available. This paper presents a synopsis of the discussions, brief descriptions of ongoing digital twin projects at different stages of progress. It also proposes a 5-year action plan for further developing this technology. The main recommendations are to identify and pursue a small number of promising use cases, to develop stimulation-specific assays of immune function in a clinical setting, and to develop a database of existing computational immune models, as well as advanced modeling technology and infrastructure.
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- 2023
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215. Electromagnetic Properties of Indium Isotopes Elucidate the Doubly Magic Character of $^{100}$Sn
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Karthein, J., Ricketts, C. M., Ruiz, R. F. Garcia, Billowes, J., Binnersley, C. L., Cocolios, T. E., Dobaczewski, J., Farooq-Smith, G. J., Flanagan, K. T., Georgiev, G., Gins, W., de Groote, R. P., Gustafsson, F. P., Holt, J. D., Kanellakopoulos, A., Koszorús, Á., Leimbach, D., Lynch, K. M., Miyagi, T., Nazarewicz, W., Neyens, G., Reinhard, P. -G., Sahoo, B. K., Vernon, A. R., Wilkins, S. G., Yang, X. F., and Yordanov, D. T.
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Nuclear Experiment ,Nuclear Theory ,Physics - Atomic Physics - Abstract
Our understanding of nuclear properties in the vicinity of $^{100}$Sn, suggested to be the heaviest doubly magic nucleus with equal numbers of protons (Z=50) and neutrons (N=50), has been a long-standing challenge for experimental and theoretical nuclear physics. Contradictory experimental evidence exists on the role of nuclear collectivity in this region of the nuclear chart. Using precision laser spectroscopy, we measured the ground-state electromagnetic moments of indium (Z=49) isotopes approaching the N=50 neutron number down to 101In, and nuclear charge radii of 101-131In spanning almost the complete range between the two major neutron closed-shells at N=50 and N=82. Our results for both nuclear charge radii and quadrupole moments reveal striking parabolic trends as a function of the neutron number, with a clear reduction toward these two neutron closed-shells, thus supporting a doubly magic character of $^{100}$Sn. Two complementary nuclear many-body frameworks, density functional theory and ab initio methods, elucidate our findings. A detailed comparison with our experimental results exposes deficiencies of nuclear models, establishing a benchmark for future theoretical developments., Comment: 12 pages, 6 figures, 4 tables; text-identical to Nature Physics article (2024)
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- 2023
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216. Shape polarization in the tin isotopes near $N=60$ from precision $g$-factor measurements on short-lived $11/2^-$ isomers
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Gray, T. J., Stuchbery, A. E., Dobaczewski, J., Blazhev, A., Alshammari, H. A., Bignell, L. J., Bonnard, J., Coombes, B. J., Dowie, J. T. H., Gerathy, M. S. M., Kibédi, T., Lane, G. J., McCormick, B. P., Mitchell, A. J., Nicholls, C., Pope, J. G., Reinhard, P. -G., Spinks, N. J., and Zhong, Y.
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Nuclear Experiment ,Nuclear Theory - Abstract
The $g$ factors of $11/2^-$ isomers in semimagic $^{109}$Sn and $^{111}$Sn (isomeric lifetimes $\tau = 2.9(3)$ ns and $\tau = 14.4(7)$ ns, respectively) were measured by an extension of the Time Differential Perturbed Angular Distribution technique, which uses \LaBr detectors and the hyperfine fields of a gadolinium host to achieve precise measurements in a new regime of short-lived isomers. The results, $g(11/2^-; {^{109}\textrm{Sn}}) = -0.186(8)$ and $g(11/2^-; {^{111}\textrm{Sn}}) = -0.214(4)$, are significantly lower in magnitude than those of the $11/2^-$ isomers in the heavier isotopes and depart from the value expected for a near pure neutron $h_{11/2}$ configuration. Broken-symmetry density functional theory calculations applied to the sequence of $11/2^-$ states reproduce the magnitude and location of this deviation. The $g(11/2^-)$ values are affected by shape core polarization; the odd $0h_{11/2}$ neutron couples to $J^{\pi}=2^+,4^+,6^+...$ configurations in the weakly-deformed effective core, causing a decrease in the $g$-factor magnitudes., Comment: 8 pages, 7 figures. Accepted in Physics Letters B
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- 2023
217. TraM-NeRF: Tracing Mirror and Near-Perfect Specular Reflections through Neural Radiance Fields
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Van Holland, Leif, Bliersbach, Ruben, Müller, Jan U., Stotko, Patrick, and Klein, Reinhard
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Computer Science - Computer Vision and Pattern Recognition ,Computer Science - Graphics - Abstract
Implicit representations like Neural Radiance Fields (NeRF) showed impressive results for photorealistic rendering of complex scenes with fine details. However, ideal or near-perfectly specular reflecting objects such as mirrors, which are often encountered in various indoor scenes, impose ambiguities and inconsistencies in the representation of the reconstructed scene leading to severe artifacts in the synthesized renderings. In this paper, we present a novel reflection tracing method tailored for the involved volume rendering within NeRF that takes these mirror-like objects into account while avoiding the cost of straightforward but expensive extensions through standard path tracing. By explicitly modeling the reflection behavior using physically plausible materials and estimating the reflected radiance with Monte-Carlo methods within the volume rendering formulation, we derive efficient strategies for importance sampling and the transmittance computation along rays from only few samples. We show that our novel method enables the training of consistent representations of such challenging scenes and achieves superior results in comparison to previous state-of-the-art approaches.
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- 2023
218. Candidate toroidal electric dipole mode in the spherical nucleus $^{58}$Ni
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von Neumann-Cosel, P., Nesterenko, V. O., Brandherm, I., Vishnevskiy, P. I., Reinhard, P. -G., Kvasil, J., Matsubara, H., Repko, A., Richter, A., Scheck, M., and Tamii, A.
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Nuclear Experiment ,Nuclear Theory - Abstract
Dipole toroidal modes appear in many fields of physics. In nuclei, such a mode was predicted more than 50 years ago, but clear experimental evidence was lacking so far. Using a combination of high-resolution inelastic scattering experiments with photons, electrons and protons, we identify for the first time candidates for toroidal dipole excitations in the nucleus $^{58}$Ni and demonstrate that transverse electron scattering form factors represent a relevant experimental observable to prove their nature., Comment: 13 pages, 8 figures
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- 2023
219. Anisotropy of magnetized quark matter
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Goswami, Kangkan, Sahu, Dushmanta, Dey, Jayanta, Sahoo, Raghunath, and Stock, Reinhard
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High Energy Physics - Phenomenology ,High Energy Physics - Experiment ,Nuclear Experiment ,Nuclear Theory - Abstract
Strong transient magnetic fields are generated in non-central relativistic heavy-ion collisions. These fields induce anisotropy within the strongly interacting medium that, in principle, can affect the thermodynamic properties of the medium. We use the Polyakov loop extended Nambu Jona-Lasinio model to study the quark matter subjected to an external magnetic field at vanishing baryon chemical potential ($\mu_{B}$). We have estimated the degree of anisotropy in the speed of sound and isothermal compressibility within the magnetized quark matter as a function of temperature ($T$) and magnetic field ($eB$). This study helps us to understand the extent of directionality generated in the initial stages of non-central collisions while giving us useful information about the system., Comment: Same as the published version in Phys. Rev. D
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- 2023
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220. Completeness Thresholds for Memory Safety: Unbounded Guarantees via Bounded Proofs (Extended Abstract)
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Reinhard, Tobias, Fasse, Justus, and Jacobs, Bart
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Computer Science - Logic in Computer Science ,F.3.1 ,D.2.4 - Abstract
Bounded proofs are convenient to use due to the high degree of automation that exhaustive checking affords. However, they fall short of providing the robust assurances offered by unbounded proofs. We sketch how completeness thresholds serve as a bridge, allowing us to derive unbounded guarantees from bounded proofs. Using a bubble sort implementation as example, we demonstrate that a bounded proof only needs to consider a few specific inputs to yield unbounded guarantees., Comment: extended abstract, 2 pages, 2 figures
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- 2023
221. Dynamical Chiral Symmetry Breaking in Quantum Chromo Dynamics: Delicate and Intricate
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Alkofer, Reinhard
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High Energy Physics - Phenomenology - Abstract
Dynamical Chiral Symmetry Breaking (DCSB) in Quantum Chromo Dynamics (QCD) for the light quarks is an indispensable concept for understanding hadron physics, i.e., the spectrum and the structure of hadrons. In Functional Approaches to QCD the respective role of the quark propagator has been evident since the seminal work of Nambu and Jona-Lasinio has been recast in QCD's terms. It not only highlights one of the most important aspects of DCSB, the dynamical generation of constituent quark masses, but also makes plausible that DCSB is a robustly occurring phenomenon in QCD. The latter impression, however, changes when higher $n$-point functions are taken into account. In particular, the quark-gluon vertex, i.e., the most elementary $n$-point function describing the full, non-perturbative quark-gluon interaction, plays a dichotomous role: It is subject to DCSB as signalled by its scalar and tensor components but it is also a driver of DCSB due to the infrared enhancement of most of its components. Herein, the relevant self-consistent mechanism is elucidated. It is pointed out that recently obtained results imply that, at least in the covariant gauge, DCSB in QCD is located close to the critical point and is thus a delicate effect. And, requiring a precise determination of QCD's three-point functions, DCSB is established, in particular in view of earlier studies, by an intricate interplay of the self-consistently determined magnitude and momentum dependence of various tensorial components of the gluon-gluon and the quark-gluon interactions., Comment: 10 pages, 1 figure
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- 2023
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222. Three-dimensional magnetic resonance tomography with sub-10 nanometer resolution
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Amawi, Mohammad T, Trelin, Andrii, Huang, You, Weinbrenner, Paul, Poggiali, Francesco, Leibold, Joachim, Schalk, Martin, and Reinhard, Friedemann
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Quantum Physics - Abstract
We demonstrate three-dimensional magnetic resonance tomography with a resolution down to 5.99 +- 0.07 nm. Our measurements use lithographically fabricated microwires as a source of three-dimensional magnetic field gradients, which we use to image NV centers in a densely doped diamond by Fourier-accelerated magnetic resonance tomography. We also present a compressed sensing scheme for imaging of a spatially localized ensemble from undersampled data, which allows for a direct visual interpretation without numerical optimization. The resolution achieved in our work approaches the positioning accuracy of site-directed spin labeling, paving the way to three-dimensional structure analysis by magnetic-gradient based tomography.
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- 2023
223. Microscopic analysis of dipole electric and magnetic strengths in $^{156}$Gd
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Nesterenko, V. O., Vishnevskiy, P. I., Reinhard, P. -G., Repko, A., and Kvasil, J.
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Nuclear Theory - Abstract
The dipole electric ($E1$) and magnetic ($M1$) strengths in strongly deformed $^{156}$Gd are investigated within a fully self-consistent Quasiparticle Random Phase Approximation (QRPA) with Skyrme forces SVbas, SLy6 and SG2. We inspect, on the same theoretical footing, low-lying dipole states and the isovector giant dipole resonance in $E1$ channel and the orbital scissors resonance as well as the spin-flip giant resonance (SFGR) in $M1$ channel. Besides, $E1$ toroidal mode and low-energy spin-flip $M1$ excitations are considered. The deformation splitting and dipole-octupole coupling of electric excitations are analyzed. The origin of SFGR gross structure, impact of the residual interaction and interference of orbital and spin contributions to SFGR are discussed. The effect of the central exchange $\textbf{J}^2$-term from the Skyrme functional is demonstrated. The calculations show a satisfactory agreement with available experimental data, except for the recent NRF measurements of M. Tamkas et al for $M1$ strength at 4-6 MeV, where, in contradiction with our calculations and previous $(p,p')$ data, almost no $M1$ strength was observed., Comment: 13 pages, 6 figures, 8 tables
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- 2023
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224. Surprising charge-radius kink in the Sc isotopes at N=20
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König, Kristian, Fritzsche, Stephan, Hagen, Gaute, Holt, Jason D., Klose, Andrew, Lantis, Jeremy, Liu, Yuan, Minamisono, Kei, Miyagi, Takayuki, Nazarewicz, Witold, Papenbrock, Thomas, Pineda, Skyy V., Powel, Robert, and Reinhard, Paul-Gerhard
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Nuclear Experiment ,Nuclear Theory - Abstract
Charge radii of neutron deficient 40Sc and 41Sc nuclei were determined using collinear laser spectroscopy. With the new data, the chain of Sc charge radii extends below the neutron magic number N=20 and shows a pronounced kink, generally taken as a signature of a shell closure, but one notably absent in the neighboring Ca, K and Ar isotopic chains. Theoretical models that explain the trend at N=20 for the Ca isotopes cannot reproduce this puzzling behavior.
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- 2023
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225. The genetic evolution of acral melanoma
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Wang, Meng, Fukushima, Satoshi, Sheen, Yi-Shuan, Ramelyte, Egle, Cruz-Pacheco, Noel, Shi, Chenxu, Liu, Shanshan, Banik, Ishani, Aquino, Jamie D, Sangueza Acosta, Martin, Levesque, Mitchell, Dummer, Reinhard, Liau, Jau-Yu, Chu, Chia-Yu, Shain, A Hunter, Yeh, Iwei, and Bastian, Boris C
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Biological Sciences ,Biomedical and Clinical Sciences ,Genetics ,Oncology and Carcinogenesis ,Human Genome ,Cancer ,Biotechnology ,Clinical Research ,Cancer Genomics ,2.1 Biological and endogenous factors ,Humans ,Melanoma ,Skin Neoplasms ,Mutation ,Telomerase ,DNA Copy Number Variations ,Evolution ,Molecular ,Male ,Exome Sequencing ,Female ,MAP Kinase Signaling System - Abstract
Acral melanoma is an aggressive type of melanoma with unknown origins. It is the most common type of melanoma in individuals with dark skin and is notoriously challenging to treat. We examine exome sequencing data of 139 tissue samples, spanning different progression stages, from 37 patients. We find that 78.4% of the melanomas display clustered copy number transitions with focal amplifications, recurring predominantly on chromosomes 5, 11, 12, and 22. These complex genomic aberrations are typically shared across all progression stages of individual patients. TERT activating alterations also arise early, whereas MAP-kinase pathway mutations appear later, an inverted order compared to the canonical evolution. The punctuated formation of complex aberrations and early TERT activation suggest a unique mutational mechanism that initiates acral melanoma. The marked intratumoral heterogeneity, especially concerning MAP-kinase pathway mutations, may partly explain the limited success of therapies for this melanoma subtype.
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- 2024
226. Developing a national implementation strategy to accelerate uptake of evidence-based family caregiver support in U.S. cancer centers.
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Sterba, Katherine, Sannes, Timothy, Reinhard, Susan, Nightingale, Chandylen, Meier, Diane, Gray, Tamryn, Ferrell, Betty, Fernandez, Maria, Donovan, Heidi, Curry, Kayleigh, Currie, Erin, Bryant, Tara, Bakitas, Marie, Applebaum, Allison, Odom, J, and Young, Heather
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cancer ,dissemination ,family caregiving ,implementation ,Humans ,Caregivers ,Health Services ,Neoplasms ,Ambulatory Care Facilities - Abstract
OBJECTIVE: Characterize key factors and training needs of U.S. cancer centers in implementing family caregiver support services. METHODS: Sequential explanatory mixed methods design consisting of: (1) a national survey of clinicians and administrators from Commission-on-Cancer-accredited cancer centers (N = 238) on factors and training needed for establishing new caregiver programs and (2) qualitative interviews with a subsample of survey respondents (N = 30) to elicit feedback on survey findings and the outline of an implementation strategy to facilitate implementation of evidence-based family caregiver support (the Caregiver Support Accelerator). Survey data was tabulated using descriptive statistics and transcribed interviews were analyzed using thematic analysis. RESULTS: Top factors for developing new caregiver programs were that the program be: consistent with the cancer centers mission and strategic plan (87%), supported by clinic leadership (86.5%) and providers and staff (85.7%), and low cost or cost effective (84.9%). Top training needs were how to: train staff to implement programs (72.3%), obtain program materials (63.0%), and evaluate program outcomes (62.6%). Only 3.8% reported that no training was needed. Qualitative interviews yielded four main themes: (1) gaining leadership, clinician, and staff buy-in and support is essential; (2) cost and clinician burden are major factors to program implementation; (3) training should help with adapting and marketing programs to local context and culture; and (4) the Accelerator strategy is comprehensive and would benefit from key organizational partnerships and policy standards. CONCLUSION: Findings will be used to inform and refine the Accelerator implementation strategy to facilitate the adoption and growth of evidence-based cancer caregiver support in U.S. cancer centers.
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- 2024
227. Inferring chemical disequilibrium biosignatures for Proterozoic Earth-like exoplanets
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Young, Amber V, Robinson, Tyler D, Krissansen-Totton, Joshua, Schwieterman, Edward W, Wogan, Nicholas F, Way, Michael J, Sohl, Linda E, Arney, Giada N, Reinhard, Christopher T, Line, Michael R, Catling, David C, and Windsor, James D
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Astronomical Sciences ,Physical Sciences ,Astronomical sciences ,Particle and high energy physics ,Space sciences - Abstract
Abstract: Chemical disequilibrium quantified using the available free energy has previously been proposed as a potential biosignature. However, researchers remotely sensing exoplanet biosignatures have not yet investigated how observational uncertainties impact the ability to infer a life-generated available free energy. We pair an atmospheric retrieval tool to a thermodynamics model to assess the detectability of chemical disequilibrium signatures of Earth-like exoplanets, focusing on the Proterozoic eon when the atmospheric abundances of oxygen–methane disequilibrium pairs may have been relatively high. Retrieval model studies applied across a range of gas abundances revealed that order-of-magnitude constraints on the disequilibrium energy are achieved with simulated reflected-light observations for the high-abundance scenario and high signal-to-noise ratios (50), whereas weak constraints are found for moderate signal-to-noise ratios (20–30) and medium- to low-abundance cases. Furthermore, the disequilibrium-energy constraints are improved by using the modest thermal information encoded in water vapour opacities at optical and near-infrared wavelengths. These results highlight how remotely detecting chemical disequilibrium biosignatures can be a useful and metabolism-agnostic approach to biosignature detection.
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- 2024
228. A novel mouse model recapitulating the MMR-defective SCLC subtype uncovers an actionable sensitivity to immune checkpoint blockade
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Ibruli, Olta, Rose, France, Beleggia, Filippo, Schmitt, Anna, Cartolano, Maria, Fernandez, Lucia Torres, Saggau, Julia, Bonasera, Debora, Kiljan, Martha, Gozum, Gokcen, Lichius, Luca, Cai, Jiali, Niu, Li-na, Caiaffa, Manoela Iannicelli, Herter, Jan M., Walczak, Henning, Liccardi, Gianmaria, Grüll, Holger, Büttner, Reinhard, Bosco, Graziella, George, Julie, Thomas, Roman K., Bozek, Kasia, Reinhardt, Hans Christian, and Herter-Sprie, Grit S.
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- 2024
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229. Butterfly eggs prime anti-herbivore defense in an annual but not perennial Arabidopsis species
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Huve, Maryse A. P., Bittner, Norbert, Kunze, Reinhard, Hilker, Monika, Remus-Emsermann, Mitja N. P., Paniagua Voirol, Luis R., and Lortzing, Vivien
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- 2024
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230. Protective effect of nanoemulsions containing CdTe quantum dots with potential application as a diagnostic agent
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Gusmão, Luiza Araújo, Köster, Reinhard Wolfgang, and Tedesco, Antonio Claudio
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- 2024
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231. Make the Most of Your Society Journal
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Simpson, Matthew J., Laubenbacher, Reinhard C., and Baker, Ruth E.
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- 2024
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232. Control-Value Theory: From Achievement Emotion to a General Theory of Human Emotions
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Pekrun, Reinhard
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- 2024
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233. Three-Year Overall Survival with Tebentafusp in Metastatic Uveal Melanoma.
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Hassel, Jessica, Piperno-Neumann, Sophie, Rutkowski, Piotr, Baurain, Jean-Francois, Schlaak, Max, Butler, Marcus, Sullivan, Ryan, Dummer, Reinhard, Kirkwood, John, Orloff, Marlana, Sacco, Joseph, Ochsenreither, Sebastian, Joshua, Anthony, Gastaud, Lauris, Curti, Brendan, Piulats, Josep, Salama, April, Shoushtari, Alexander, Demidov, Lev, Milhem, Mohammed, Chmielowski, Bartosz, Kim, Kevin, Carvajal, Richard, Hamid, Omid, Collins, Laura, Ranade, Koustubh, Holland, Chris, Pfeiffer, Constance, and Nathan, Paul
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Adult ,Humans ,Antineoplastic Combined Chemotherapy Protocols ,HLA-A Antigens ,Melanoma ,Uveal Neoplasms ,Recombinant Fusion Proteins - Abstract
BACKGROUND: Tebentafusp, a T-cell receptor-bispecific molecule that targets glycoprotein 100 and CD3, is approved for adult patients who are positive for HLA-A*02:01 and have unresectable or metastatic uveal melanoma. The primary analysis in the present phase 3 trial supported a long-term survival benefit associated with the drug. METHODS: We report the 3-year efficacy and safety results from our open-label, phase 3 trial in which HLA-A*02:01-positive patients with previously untreated metastatic uveal melanoma were randomly assigned in a 2:1 ratio to receive tebentafusp (tebentafusp group) or the investigators choice of therapy with pembrolizumab, ipilimumab, or dacarbazine (control group), with randomization stratified according to the lactate dehydrogenase level. The primary end point was overall survival. RESULTS: At a minimum follow-up of 36 months, median overall survival was 21.6 months in the tebentafusp group and 16.9 months in the control group (hazard ratio for death, 0.68; 95% confidence interval, 0.54 to 0.87). The estimated percentage of patients surviving at 3 years was 27% in the tebentafusp group and 18% in the control group. The most common treatment-related adverse events of any grade in the tebentafusp group were rash (83%), pyrexia (76%), pruritus (70%), and hypotension (38%). Most tebentafusp-related adverse events occurred early during treatment, and no new adverse events were observed with long-term administration. The percentage of patients who discontinued treatment because of adverse events continued to be low in both treatment groups (2% in the tebentafusp group and 5% in the control group). No treatment-related deaths occurred. CONCLUSIONS: This 3-year analysis supported a continued long-term benefit of tebentafusp for overall survival among adult HLA-A*02:01-positive patients with previously untreated metastatic uveal melanoma. (Funded by Immunocore; IMCgp100-202 ClinicalTrials.gov number, NCT03070392; EudraCT number, 2015-003153-18.).
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- 2023
234. A new silicon phthalocyanine dye induces pyroptosis in prostate cancer cells during photoimmunotherapy
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Isis Wolf, Jonas Storz, Susanne Schultze-Seemann, Philipp R. Esser, Stefan F. Martin, Susan Lauw, Peer Fischer, Marie Peschers, Wolfgang Melchinger, Robert Zeiser, Oliver Gorka, Olaf Groß, Christian Gratzke, Reinhard Brückner, and Philipp Wolf
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Silicon phthalocyanine ,Photoimmunotherapy ,Cancer ,Pyroptosis ,Immunogenic cell death ,Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Biology (General) ,QH301-705.5 - Abstract
Photoimmunotherapy (PIT) combines the specificity of antibodies with the cytotoxicity of light activatable photosensitizers (PS) and is a promising new cancer therapy. We designed and synthesized, in a highly convergent manner, the silicon phthalocyanine dye WB692-CB2, which is novel for being the first light-activatable PS that can be directly conjugated via a maleimide linker to cysteines. In the present study we conjugated WB692-CB2 to a humanized antibody with engineered cysteines in the heavy chains that specifically targets the prostate-specific membrane antigen (PSMA). The resulting antibody dye conjugate revealed high affinity and specificity towards PSMA-expressing prostate cancer cells and induced cell death after irradiation with red light. Treated cells exhibited morphological characteristics associated with pyroptosis. Mechanistic studies revealed the generation of reactive oxygen species, triggering a cascade of intracellular events involving lipid peroxidation, caspase-1 activation, gasdermin D cleavage and membrane rupture followed by release of pro-inflammatory cellular contents. In first in vivo experiments, PIT with our antibody dye conjugate led to a significant reduction of tumor growth and enhanced overall survival in mice bearing subcutaneous prostate tumor xenografts. Our study highlights the future potential of the new phthalocyanine dye WB692-CB2 as PS for the fluorescence-based detection and PIT of cancer, including local prostate tumor lesions, and systemic activation of anti-tumor immune responses by the induction of pyroptosis.
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- 2024
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235. Lipoprotein (a) is not associated with thrombus burden derived from CT pulmonary angiography in patients with acute pulmonary embolism
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Paul Gressenberger, Florian Posch, Gabriel Adelsmayr, Eszter Nagy, Ann-Katrin Kaufmann-Bühler, Jakob Steiner, Michael Janisch, Clemens Reiter, Martin Eibisberger, Elmar Janek, Nina Softic, Michael Fuchsjäger, Katharina Gütl, Philipp Jud, Günther Silbernagel, Reinhard B. Raggam, Marianne Brodmann, Thomas Gary, and Johannes Schmid
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Medicine ,Science - Abstract
Abstract Lipoprotein (a) [Lp(a)] is suspected to have antifibrinolytic effects, however, its relevance for the severity of venous thromboembolic events remains unclear. We studied the association of Lp(a) levels with thrombus load in pulmonary embolism (PE). 90 patients (40% female, median age 70 [56–79] years) at our tertiary care hospital with a diagnosis of acute PE, available Lp(a) levels and CT pulmonary angiography (CT-PA) performed between April 2017 and December 2019 were included. All CT-PA scans were reanalyzed and thrombus load was determined via Qanadli CT obstruction index (CTOI) and most proximal thrombus location. Median Lp(a) levels were 11.4 [9.3–29.1] mg/dL, median D-dimer levels were 4.6 [2.1–9.8] mg/L, median CTOI was 23 [8–50], central PE was present in 27 (30%) patients. Lp(a) did not correlate with CTOI (r = 0.02, p = 0.922) and was not associated with thrombus location (p = 0.369). CTOI significantly correlated with D-dimer (r = 0.43, p
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- 2024
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236. The ability of Austrian registered physiotherapists to recognize serious pathology
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Jessie Janssen, Wolfgang Lackenbauer, Simon Gasselich, Martina Edda Lickel, Lars Schabel, Reinhard Beikircher, Christian Keip, Manfred Wieser, James Selfe, Bruno Mazuquin, and Gillian Yeowell
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Red flags ,Physical therapy ,Clinical decision making ,Clinical vignettes ,Medicine (General) ,R5-920 - Abstract
Abstract Background Serious pathology masking as musculoskeletal conditions is rare, still it is pertinent that physiotherapists can recognise it. This ability has been investigated internationally, however the decision-making skills of registered Austrian physiotherapists has not been examined. The aim of this study was to assess the ability of registered Austrian physiotherapists to make accurate keep-refer decisions based on clinical vignettes. Methods In this national survey registered Austrian (self-)employed physiotherapists were recruited and completed 12 clinical vignettes. Correctly answered vignettes were listed as percentages. Results 479 physiotherapists participated in the study. The response rate of the self-employed physiotherapists was 8.0%. On average participants classified 70.5% of the musculoskeletal cases, 79.4% of the non-critical medical cases, and 53.3% of the critical medical cases correctly. Conclusion This study suggests that, despite the limitations of using written clinical vignettes, registered Austrian physiotherapists welcome additional training to improve their skills in identifying serious pathology. Targeted training and educational programs including new and more detailed educational clinical vignettes relevant for non-direct access countries are needed to enhance physiotherapists’ diagnostic skills and decision-making processes.
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- 2024
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237. Six clinical phenotypes with prognostic implications were identified by unsupervised machine learning in children and adolescents with SARS-CoV-2 infection: results from a German nationwide registry
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Yanyan Shi, Ralf Strobl, Reinhard Berner, Jakob Armann, Simone Scheithauer, and Eva Grill
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SARS-CoV-2 ,Clinical phenotype ,Clustering ,Machine learning ,Prognosis ,Diseases of the respiratory system ,RC705-779 - Abstract
Abstract Objective Phenotypes are important for patient classification, disease prognostication, and treatment customization. We aimed to identify distinct clinical phenotypes of children and adolescents hospitalized with SARS-CoV-2 infection, and to evaluate their prognostic differences. Methods The German Society of Pediatric Infectious Diseases (DGPI) registry is a nationwide, prospective registry for children and adolescents hospitalized with a SARS-CoV-2 infection in Germany. We applied hierarchical clustering for phenotype identification with variables including sex, SARS-CoV-2-related symptoms on admission, pre-existing comorbidities, clinically relevant coinfection, and SARS-CoV-2 risk factors. Outcomes of this study were: discharge status and ICU admission. Discharge status was categorized as: full recovery, residual symptoms, and unfavorable prognosis (including consequential damage that has already been identified as potentially irreversible at the time of discharge and SARS-CoV-2-related death). After acquiring the phenotypes, we evaluated their correlation with discharge status by multinomial logistic regression model, and correlation with ICU admission by binary logistic regression model. We conducted an analogous subgroup analysis for those aged
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- 2024
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238. Renting trouble? An analysis of crime and calls to police at addresses with different rental types
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Daniel Reinhard and Jeffrey J. Roth
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Rental properties ,Crime ,Calls for service ,Concentrations ,Science (General) ,Q1-390 ,Social pathology. Social and public welfare. Criminology ,HV1-9960 - Abstract
Abstract Background The number of studies about crime at short-term rentals (STRs), and about crime concentration has surged in recent years, but few have bridged these literatures. This study examines crime and calls for service at STRs in relation to other rentals, hotels, and all other addresses in a university city. Methods Police circumstances, rental properties, hotels and motels, liquor licenses, and all other addresses are assessed from January 2021 through June 2023 to understand public safety at STRs compared to other address-types. Results STRs make up less than 10% of rental addresses. Police circumstances are significantly and negatively associated with both distance to campus and to liquor licenses. The maximum unrelated occupancy is positively and significantly associated with issues. STRs have greater issues for their lower maximum occupancy, but other rentals and hotels present substantially more problems on a per-address basis. Conclusion These findings highlight the scope of STR circumstances, clarify potential differences in crime versus calls for service, and suggest that on a per-address basis, both are substantially worse at hotels and longer rentals than STRs.
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- 2024
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239. A multi-domain snail metallothionein increases cadmium resistance and fitness in Caenorhabditis elegans
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Andreas Andric, Michael Niederwanger, Eva Albertini, Pidder Jansen-Dürr, Stephen R. Stürzenbaum, Reinhard Dallinger, Veronika Pedrini-Martha, and Alexander K. H. Weiss
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Medicine ,Science - Abstract
Abstract Metallothioneins (MTs) are a family of mostly low-molecular weight, cysteine-rich proteins capable of specific metal-ion binding that are involved in metal detoxification and homeostasis, as well as in stress response. In contrast to most other animal species which possess two-domain (bidominial) MTs, some gastropod species have evolved Cd2+-selective multidomain MTs (md-MTs) consisting of several concatenated β3 domains and a single C-terminal β1 domain. Each domain contains three-metal ion clusters and binds three metal ions. The terrestrial snail Alinda biplicata possesses, among other MT isoforms, an md-MT with nine β3 domains and a C-terminal β1 domain (termed 10md-MT), capable of binding up to 30 Cd2+ ions per protein molecule. In the present study, the Alinda biplicata 10md-MT gene and a truncated version consisting of one β3 domain and a single C-terminal β1 domain (2d-MT) were introduced into a Caenorhabditis elegans knock-out strain lacking a native MT gene (mtl-1). The two snail MT constructs consistently increased Cd2+ resistance, and partially improved morphological, life history and physiological fitness traits in the nematode model host Caenorhabditis elegans. This highlights how the engineering of transgenic Caenorhabditis elegans strains expressing snail MTs provides an enhancement of the innate metal detoxification mechanism and in doing so provides a platform for enhanced mechanistic toxicology.
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- 2024
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240. Visual and ocular surface benefits of mini-scleral contact lenses in patients with chronic ocular graft-versus-host disease (GvHD)
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Philip Keye, Susanne Issleib, Yvonne Gier, Mateusz Glegola, Philip Maier, Daniel Böhringer, Philipp Eberwein, and Thomas Reinhard
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Medicine ,Science - Abstract
Abstract Graft-versus-Host disease is a major complication of allogeneic stem cell transplantation. The eyes are a frequently affected organ with a severe dry eye disease being the hallmark manifestation. This retrospective study evaluates the effect of mini-scleral contact lenses on visual acuity, eye-related quality of life and the ocular surface. 62 eyes of 31 patients were included and visual acuity, ocular surface disease index (OSDI) questionnaire results and Oxford grades before and after mini-scleral lens fitting were compared. Median Snellen fraction with mini-scleral lenses was 20/25 (1st 20/30/3rd 20/20) compared to 20/40 median Snellen fraction with spectacles (1st 20/60/3rd 20/25). Median OSDI scores improved from 73 (1st 41.6/3rd 89) before fitting to 27 (1st 14.5/3rd 56) with mini-scleral lenses. Median Oxford grade decreased from 3 before mini-scleral lens fitting (1st 1/3rd 4.75) to 1 after mini-scleral lens fitting (1st 0/3rd 4). Median time of follow up was 717.5 days. Seven patients (22.6%) discontinued therapy with mini-scleral lenses. Mini-scleral lenses are beneficial for most patients with ocular GvHD as they improve visual acuity, eye-related quality of life and the integrity of the corneal epithelium.
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- 2024
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241. Expert elicitation of state shifts and divergent sensitivities to climate warming across northern ecosystems
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Émilie Saulnier-Talbot, Éliane Duchesne, Dermot Antoniades, Dominique Arseneault, Christine Barnard, Dominique Berteaux, Najat Bhiry, Frédéric Bouchard, Stéphane Boudreau, Kevin Cazelles, Jérôme Comte, Madeleine-Zoé Corbeil-Robitaille, Steeve D. Côté, Raoul-Marie Couture, Guillaume de Lafontaine, Florent Domine, Dominique Fauteux, Daniel Fortier, Michelle Garneau, Gilles Gauthier, Dominique Gravel, Isabelle Laurion, Martin Lavoie, Nicolas Lecomte, Pierre Legagneux, Esther Lévesque, Marie-José Naud, Michel Paquette, Serge Payette, Reinhard Pienitz, Milla Rautio, Alexandre Roy, Alain Royer, Martin Simard, Warwick F. Vincent, and Joël Bêty
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Geology ,QE1-996.5 ,Environmental sciences ,GE1-350 - Abstract
Abstract Northern regions are warming faster than the rest of the globe. It is difficult to predict ecosystem responses to warming because the thermal sensitivity of their biophysical components varies. Here, we present an analysis of the authors’ expert judgment regarding the sensitivity of six ecosystem components – permafrost, peatlands, lakes, snowpack, vegetation, and endothermic vertebrates – across northern landscapes ranging from boreal to polar biomes. We identified 28 discontinuous component states across a 3700 km latitudinal gradient in northeastern North America and quantified sensitivity as the transition time from an initial to a contrasting state following a theoretical step change increase in mean annual air temperature of 5 °C. We infer that multiple interconnected state shifts are likely to occur within a narrow subarctic latitudinal band at timescales of 10 to more than 100 years, and response times decrease with latitude. Response times differ between components and across latitudes, which is likely to impair the integrity of ecosystems.
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- 2024
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242. Retinol-binding protein type 1 expression predicts poor prognosis in head and neck squamous cell carcinoma
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Ling-ling Fu, Ming Yan, Xin Yu, Min Shao, Martin Gosau, Reinhard E. Friedrich, Tobias Vollkommer, Ralf Smeets, Hong-chao Feng, and Liya Xu
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RBP1 ,Bioinformatic analysis ,Prognosis biomarker ,Head and neck squamous cell carcinoma ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Head and neck squamous cell carcinoma (HNSCC) is the sixth most prevalent malignancy worldwide, with high incidence and poor survival rates. RBP1 is highly expressed in several kinds of cancer and plays a potential prognostic factor. However, the relationship between RBP1 and HNSCC were analyzed based on The Cancer Genome Atlas (TCGA) database. Materials and methods RBP1 expression and clinical information were obtained from the Cancer Genome Atlas (TCGA) database. Tumor tissue and adjacent normal tissue of 6 HNSCC patients were collected to analyze the RBP1 mRNA expression level by quantitative PCR. Cox regression analysis was used to evaluate the prognostic values of RBP1 and clinical data in HNSCC. A nomogram was also established to predict the impact of RBP1 on prognosis based on Cox multivariate results. The methylation level of RBP1 in HNSC and its prognosis were analyzed in UALACN and MethSurv. Finally, the potential biological functions of RBP1 were investigated using gene set enrichment analysis (GSEA) and single sample GSEA (ssGSEA). Results The mRNA expression levels of RBP1 were highly expressed in HNSCC tissue. The Cox analyses demonstrate that highly-expressed RBP1 is an independent prognosis marker(P
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- 2024
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243. Sex differences in the development of experimental diabetic retinopathy
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Ying Chen, Andrea Schlotterer, Jihong Lin, Nadine Dietrich, Thomas Fleming, Stefanie Lanzinger, Reinhard W. Holl, and Hans-Peter Hammes
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Sex ,Diabetic retinopathy ,Estrogen ,Vascular damage ,Reactive metabolites ,Crystallins ,Medicine ,Science - Abstract
Abstract This study aimed to characterize the role of female sex in the pathogenesis of diabetic retinopathy. In the retinae of female Ins2Akita-diabetic mice (F-IA), ovariectomized female Ins2Akita-diabetic mice (F-IA/OVX), male Ins2Akita-diabetic mice (M-IA), and female STZ-diabetic mice (F-STZ), the formation of reactive metabolites and post-translational modifications, damage to the neurovascular unit, and expression of cellular stress response genes were analyzed. Compared to the male diabetic retina, the concentrations of the glycation adduct fructosyl-lysine, the Maillard product 3-deoxyglucosone, and the reactive metabolite methylglyoxal were significantly reduced in females. In females, there was also less evidence of diabetic damage to the neurovascular unit, as shown by decreased pericyte loss and reduced microglial activation. In the male diabetic retina, the expression of several members of the crystallin gene family (Cryab, Cryaa, Crybb2, Crybb1, and Cryba4) was increased. Clinical data from type 1 diabetic females showed that premenopausal women had a significantly lower prevalence of diabetic retinopathy compared to postmenopausal women stratified for disease duration and glycemic control. These data emphasize the importance of estradiol in protecting the diabetic retina and highlight the pathogenic relevance of sex in diabetic retinopathy.
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- 2024
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244. Taurolidine-containing solution for reducing cardiac implantable electronic device infection-early report from the European TauroPace™ registry
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Reinhard Vonthein, Benito Baldauf, Stefan Borov, Ernest W. Lau, Marzia Giaccardi, Ojan Assadian, Christelle Haddad, Philippe Chévalier, Kerstin Bode, Paul Foley, Honey Thomas, Niall G. Campbell, Stephanie Fichtner, Luca Donazzan, Felix Pescoller, Rainer Oberhollenzer, Roberto Cemin, and Hendrik Bonnemeier
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Surgical site infection ,Antimicrobial compound ,Permanent pacemaker ,Subcutaneous implantable cardioverter defibrillator ,Cardiac resynchronization therapy ,Cardiac contractility modulation ,Surgery ,RD1-811 ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Introduction Infection is a significant complication of cardiac implantable electronic device (CIED) therapy. The European TauroPace™ Registry investigates the safety and efficacy of TauroPace™ (TP), an antimicrobial solution containing taurolidine, designed to prevent CIED infections. Methods This multicenter study included patients undergoing CIED procedures at participating centers where TP was used as a disinfectant for external hardware surfaces and an antiseptic for irrigating surgical sites. All patients eligible for CIED placement with adjunctive TP as the standard of care were included. Other aspects of CIED procedures adhered to current guidelines. Data on CIED-related infective endocarditis, CIED pocket infection, device and procedure-related complications, adverse events, and all-cause mortality were prospectively collected for 12 months. In cases of revision, the previous procedure was censored, and a new procedure was created. Binomial and Kaplan–Meier statistics were employed to analyze event rates. Results From January 2020 to November 2022, TP was used in 822 out of 1170 CIED procedures. Among patients who completed the 3-month follow-up, no CIED pocket infections were observed, and one case of CIED-related infective endocarditis was reported. In the 12-month follow-up cohort, two additional local pocket CIED infections were observed, resulting in a total of three major CIED infections within 1 year after the CIED placement procedure. The 3-month and 12-month major CIED infection rates were 0.125% and 0.51%, respectively. During the observation a complication rate of 4.4% was reported. No adverse events related to TP were observed. Conclusions TP appears to be effective and safe in preventing CIED infections. ClinicalTrials.gov Identifier: NCT04735666.
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- 2024
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245. The minimal closed monoids for the Galois connection ${\rm End}$-${\rm Con}$
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Danica Jakubíková-Studenovská, Reinhard Pöschel, and Sándor Radeleczki
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endomorphism monoid ,congruence lattice ,quasiorder lattice ,finite algebra ,Mathematics ,QA1-939 - Abstract
The minimal nontrivial endomorphism monoids $M={\rm End}{\rm Con} (A,F)$ of congruence lattices of algebras $(A,F)$ defined on a finite set $A$ are described. They correspond (via the Galois connection ${\rm End}$-${\rm Con}$) to the maximal nontrivial congruence lattices ${\rm Con} (A,F)$ investigated and characterized by the authors in previous papers. Analogous results are provided for endomorphism monoids of quasiorder lattices ${\rm Quord} (A,F)$.
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- 2024
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246. Sentiment Analysis on Shopee Product Reviews Using IndoBERT
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Suhardi Aras, Muhammad Yusuf, Reinhard Yohanis Ruimassa, Elli Agustinus Billi Wambrauw, and Elsa Bura Pala'langan
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marketplace, shopee, review, nlp, indobert ,Mathematics ,QA1-939 ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
A marketplace is a place in cyberspace where there are commercial activities between buyers and sellers. Products offered from the marketplace have reviews to review. Shopee is the most visited marketplace by people and offers various products. Product reviews can provide benefits for other consumers in assessing the products offered. By utilizing NLP technology in particular, this study can classify positive sentiment and negative sentiment in product review data. The IndoBERT model is a model that can be used in NLP technology by utilizing the relationship between each input and output element as well as the weights to be calculated simultaneously. By utilizing this technology, sentiment analysis on Shopee product reviews provides maximum accuracy until 93% with different training conditions. This provide that IndoBERT model can show that the performance of the indoBERT model in this research is very good.
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- 2024
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247. Frequent CHD1 deletions in prostate cancers of African American men is associated with rapid disease progression
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Miklos Diossy, Viktoria Tisza, Hua Li, Pranshu Sahgal, Jia Zhou, Zsofia Sztupinszki, Denise Young, Darryl Nousome, Claire Kuo, Jiji Jiang, Yongmei Chen, Reinhard Ebner, Isabell A. Sesterhenn, Joel T. Moncur, Gregory T. Chesnut, Gyorgy Petrovics, Gregory T. Klus, Gabor Valcz, Pier Vitale Nuzzo, Dezso Ribli, Judit Börcsök, Aurel Prosz, Marcin Krzystanek, Thomas Ried, David Szuts, Kinza Rizwan, Salma Kaochar, Shailja Pathania, Alan D. D’Andrea, Istvan Csabai, Shiv Srivastava, Matthew L. Freedman, Albert Dobi, Sandor Spisak, and Zoltan Szallasi
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract We analyzed genomic data from the prostate cancer of African- and European American men to identify differences contributing to racial disparity of outcome. We also performed FISH-based studies of Chromodomain helicase DNA-binding protein 1 (CHD1) loss on prostate cancer tissue microarrays. We created CHD1-deficient prostate cancer cell lines for genomic, drug sensitivity and functional homologous recombination (HR) activity analysis. Subclonal deletion of CHD1 was nearly three times as frequent in prostate tumors of African American than in European American men and it associates with rapid disease progression. CHD1 deletion was not associated with HR deficiency associated mutational signatures or HR deficiency as detected by RAD51 foci formation. This was consistent with the moderate increase of olaparib and talazoparib sensitivity with several CHD1 deficient cell lines showing talazoparib sensitivity in the clinically relevant concentration range. CHD1 loss may contribute to worse disease outcome in African American men.
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- 2024
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248. Sex inequalities in cardiovascular risk factors and their management in primary prevention in adults living with type 1 diabetes in Germany and France: findings from DPV and SFDT1
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Emmanuel Cosson, Marie Auzanneau, Gloria A. Aguayo, Wolfram Karges, Jean-Pierre Riveline, Petra Augstein, Laura Sablone, Peter Jehle, Guy Fagherazzi, Reinhard W. Holl, and for the DPV initiative and the SFDT1 study group
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Blood pressure ,Body mass index ,Cardiovascular ,Gender ,Lipids ,Registry ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Introduction & objectives To evaluate whether cardiovascular risk factors and their management differ in primary prevention between adult males and females with type 1 diabetes (T1D) in two European countries in 2020–2022 and sex inequalities in achievement of standards of care in diabetes. Methods We used 2020–2022 data of patients without a cardiovascular history in the Prospective Diabetes Follow-up registry (DPV) centres, in Germany, and the Société Francophone du Diabète– Cohorte Diabète de Type 1 cohort (SFDT1), in France. Results We included 2,657 participants from the DPV registry and 1,172 from the SFDT1 study. Body mass indexes were similar in females and males with similar proportions of HbA1c 3.4 mmol/L (DPV: 19.9 (females) vs 23.9% (males), p = 0.01; SFDT1 17.0 vs 19.2%, p = 0.43), statin therapy was less often prescribed in females than males in DPV (7.9 vs 17.0%, p
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- 2024
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249. Type 2-like polarization and elevated CXCL4 secretion of monocyte derived macrophages upon internalization of plasma-derived exosomes from head and neck cancer patients
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Marie-Nicole Theodoraki, Diana Huber, Linda Hofmann, Lotte Werner, Christian Idel, Jonas Fleckner, Kirstin Plötze-Martin, Lutz Schütt, Cornelia Brunner, Reinhard Depping, Thomas K. Hoffmann, Karl-Ludwig Bruchhage, and Ralph Pries
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HNSCC ,Macrophages ,Exosomes ,CD206 ,PD-L1 ,CTLA-4 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Exosomes are closely associated with different aspects of tumor-progression in patients with head and neck squamous cell carcinoma (HNSCC), such as angiogenesis or immune regulation. As extracellular vesicles they are involved in the intercellular communication by transferring their cargo such as proteins and nucleic acids from one cell to another. However, the influence of tumor related plasma-derived exosomes on the polarization and characteristics of monocyte derived macrophages is not fully understood. Methods Exosomes were isolated from plasma samples of healthy donors (HD) and HNSCC patients and further evaluated with regard to morphology, size and protein composition via transmission electron microscopy, nanoparticle tracking, western blot analysis and cytokine assays. Differentiation and characteristics of monocyte derived macrophages upon exosome internalization were analyzed using flow cytometry and fluorescence microscopy. Macrophage cytokine secretion patterns were analyzed by human cytokine antibody arrays and ELISA measurements. Results Our data revealed elevated overall plasma levels of CTLA-4, PD-L1, and TIM-3 as well as elevated exosome-associated CTLA-4, PD-L2, TIM-3, and LAG-3 levels in HNSCC patients compared to HD. Furthermore, we observed a significant type 2-like polarization and elevated CXCL4 secretion of monocyte derived macrophages upon internalization of plasma-derived exosomes from HNSCC patients, which could be visualized by fluorescence microcopy of membrane stained exosomes. Conclusions The study provides new insights regarding exosome driven pro-tumorigenic immune regulation in the circulation of patients with head and neck cancer and could help to better understand the individual immunologic situation.
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- 2024
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250. The Abl1 tyrosine kinase is a key player in doxorubicin-induced cardiomyopathy and its p53/p73 cell death mediated signaling differs in atrial and ventricular cardiomyocytes
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Jürgen Borlak, Yari Ciribilli, Alessandra Bisio, Saravanakumar Selvaraj, Alberto Inga, Jung-Hwa Oh, and Reinhard Spanel
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Toxic cardiomyopathy ,Heart failure ,Animal models of human disease ,Abl1/p53/p73 cell death signaling ,Medicine - Abstract
Abstract Background Doxorubicin is an important anticancer drug, however, elicits dose-dependently cardiomyopathy. Given its mode of action, i.e. topoisomerase inhibition and DNA damage, we investigated genetic events associated with cardiomyopathy and searched for mechanism-based possibilities to alleviate cardiotoxicity. We treated rats at clinically relevant doses of doxorubicin. Histopathology and transmission electron microscopy (TEM) defined cardiac lesions, and transcriptomics unveiled cardiomyopathy-associated gene regulations. Genomic-footprints revealed critical components of Abl1-p53-signaling, and EMSA-assays evidenced Abl1 DNA-binding activity. Gene reporter assays confirmed Abl1 activity on p53-targets while immunohistochemistry/immunofluorescence microscopy demonstrated Abl1, p53&p73 signaling. Results Doxorubicin treatment caused dose-dependently toxic cardiomyopathy, and TEM evidenced damaged mitochondria and myofibrillar disarray. Surviving cardiomyocytes repressed Parkin-1 and Bnip3-mediated mitophagy, stimulated dynamin-1-like dependent mitochondrial fission and induced anti-apoptotic Bag1 signaling. Thus, we observed induced mitochondrial biogenesis. Transcriptomics discovered heterogeneity in cellular responses with minimal overlap between treatments, and the data are highly suggestive for distinct cardiomyocyte (sub)populations which differed in their resilience and reparative capacity. Genome-wide footprints revealed Abl1 and p53 enriched binding sites in doxorubicin-regulated genes, and we confirmed Abl1 DNA-binding activity in EMSA-assays. Extraordinarily, Abl1 signaling differed in the heart with highly significant regulations of Abl1, p53 and p73 in atrial cardiomyocytes. Conversely, in ventricular cardiomyocytes, Abl1 solely-modulated p53-signaling that was BAX transcription-independent. Gene reporter assays established Abl1 cofactor activity for the p53-reporter PG13-luc, and ectopic Abl1 expression stimulated p53-mediated apoptosis. Conclusions The tyrosine kinase Abl1 is of critical importance in doxorubicin induced cardiomyopathy, and we propose its inhibition as means to diminish risk of cardiotoxicity.
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- 2024
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