cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Invasive listeriosis outbreaks and salmon products: a genomic, epidemiological study
Creators: name: Lachmann, Dr. Raskit
name: Halbedel, Dr. Sven
name: Lüth, Dr. Stefanie
name: Holzer, Alexandra
name: Adler, Dr. Marlen
name: Pietzka, Dr. Ariane
name: Al Dahouk, Prof. Sascha
name: Stark, Prof. Klaus
name: Flieger, Prof. Antje
name: Kleta, Dr. Sylvia
name: Wilking, Dr. Hendrik
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Invasive listeriosis, caused by Listeria (L.) monocytogenes, is a severe foodborne infection, especially for immunocompromised individuals. The aim of our investigation was the identification and analysis of listeriosis outbreaks in Germany with smoked and graved salmon products as the most likely source of infection using whole-genome sequencing (WGS) and patient interviews. In a national surveillance program, WGS was used for subtyping and core genome multi locus sequence typing (cgMLST) for cluster detection of L. monocytogenes isolates from listeriosis cases as well as food and environmental samples in Germany. Patient interviews were conducted to complement the molecular typing. We identified 22 independent listeriosis outbreaks occuring between 2010 and 2021 that were most likely associated with the consumption of smoked and graved salmon products. In Germany, 228 cases were identified, of 50 deaths reported (22%) 17 were confirmed to have died from listeriosis. Many of these 22 outbreaks were cross-border outbreaks with further cases in other countries. This report shows that smoked and graved salmon products contaminated with L. monocytogenes pose a serious risk for listeriosis infection in Germany. Interdisciplinary efforts including WGS and epidemiological investigations were essential to identifying the source of infection. Uncooked salmon products are high risk foods frequently contaminated with L. monocytogenes. In order to minimise the risk of infection for consumers, food producers need to improve hygiene measures and reduce the entry of pathogens into food processing. Furthermore, susceptible individuals should be better informed of the risk of acquiring listeriosis from consuming smoked and graved salmon products’.
Orbital magnetization from interface reflections in a conductor with charge current
Creators: name: Voss, J.
name: Ado, I. A.
name: Titov, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose that a high-quality flat interface or boundary can serve as a long-range skew scatterer for charged quasiparticles in a metal. When an electric current flows parallel to the interface, the balance between clockwise and counterclockwise reflections is disrupted, leading to a net orbital magnetization. This magnetization is maximized at the interface and varies linearly in the direction perpendicular to it. We suggest that this effect can be detected using spatially resolved Kerr effect measurements at distances up to the electron phase coherence length from the interface. Unlike the orbital Hall and orbital Edelstein effects, the proposed phenomenon does not require inversion symmetry breaking in the bulk of the sample and is unrelated to Hall effect physics.
description: 6 pages, 4 figures
N-chlorotaurine is highly active against respiratory viruses including SARS-CoV-2 (COVID-19) in vitro
Creators: name: Lackner, Michaela
name: Rössler, Annika
name: Volland, André
name: Stadtmüller, Marlena Nastassja
name: Müllauer, Brigitte
name: Banki, Zoltan
name: Ströhle, Johannes
name: Luttick, Angela
name: Fenner, Jennifer
name: Sarg, Bettina
name: Kremser, Leopold
name: Tone, Paul
name: Stoiber, Heribert
name: von Laer, Dorothee
name: Wolff, Thorsten
name: Schwarz, Carsten
name: Nagl, Markus
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: N-chlorotaurine (NCT) a long-lived oxidant generated by leukocytes, can be synthesized chemically and applied topically as an anti-infective to different body sites, including the lung via inhalation. Here, we demonstrate the activity of NCT against viruses causing acute respiratory tract infections, namely severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza viruses, and respiratory syncytial virus (RSV). Virucidal activity of NCT was tested in plaque assays, confirmed by RT-qPCR assays. Attack on virus proteins was investigated by mass spectrometry. NCT revealed broad virucidal activity against all viruses tested at 37°C and pH 7. A significant reduction in infectious particles of SARS-CoV-2 isolates from early 2020 by 1 log10 was detected after 15 min of incubation in 1% NCT. Proteinaceous material simulating body fluids enhanced this activity by transchlorination mechanisms (1 -2 log10 reduction within 1–10 minutes). Tested SARS-CoV-2 variants B.1.1.7 (Alpha) und B.1.351 (Beta) showed a similar susceptibility. Influenza virus infectious particles were reduced by 3 log10 (H3N2) to 5 log10 (H1N1pdm), RSV by 4 log10. Mass spectrometry of NCT-treated SARS-CoV-2 spike protein and 3C-like protease, influenza virus hemagglutinin and neuraminidase, and RSV fusion glycoprotein disclosed multiple sites of chlorination and oxidation as the molecular mechanism of action. Application of 1.0% NCT as a prophylactic and therapeutic strategy against acute viral respiratory tract infections deserves comprehensive clinical investigation.
Refined Graph Encoder Embedding via Self-Training and Latent Community Recovery
Creators: name: Shen, Cencheng
name: Larson, Jonathan
name: Trinh, Ha
name: Priebe, Carey E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper introduces a refined graph encoder embedding method, enhancing the original graph encoder embedding through linear transformation, self-training, and hidden community recovery within observed communities. We provide the theoretical rationale for the refinement procedure, demonstrating how and why our proposed method can effectively identify useful hidden communities under stochastic block models. Furthermore, we show how the refinement method leads to improved vertex embedding and better decision boundaries for subsequent vertex classification. The efficacy of our approach is validated through numerical experiments, which exhibit clear advantages in identifying meaningful latent communities and improved vertex classification across a collection of simulated and real-world graph data.
description: 16 pages main + 4 pages appendix
Distributed Speculative Inference (DSI): Speculation Parallelism for Provably Faster Lossless Language Model Inference
Creators: name: Timor, Nadav
name: Mamou, Jonathan
name: Korat, Daniel
name: Berchansky, Moshe
name: Pereg, Oren
name: Wasserblat, Moshe
name: Galanti, Tomer
name: Gordon, Michal
name: Harel, David
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper introduces distributed speculative inference (DSI), a novel inference algorithm that is provably faster than speculative inference (SI) [leviathan2023, chen2023, miao2024, sun2025, timor2025] and standard autoregressive inference (non-SI). Like other SI algorithms, DSI operates on frozen language models (LMs), requiring no training or architectural modifications, and it preserves the target distribution. Prior studies on SI have demonstrated empirical speedups over non-SI--but rely on sufficiently fast and accurate drafters, which are often unavailable in practice. We identify a gap where SI can be slower than non-SI if drafters are too slow or inaccurate. We close this gap by proving that DSI is faster than both SI and non-SI--given any drafters. DSI is therefore not only faster than SI, but also unlocks the acceleration of LMs for which SI fails. DSI leverages speculation parallelism (SP), a novel type of task parallelism, to orchestrate target and drafter instances that overlap in time, establishing a new foundational tradeoff between computational resources and latency. Our simulations show that DSI is 1.29-1.92x faster than SI in single-node setups for various off-the-shelf LMs and tasks. We open-source all our code.
description: Published at ICLR 2025. (Link: https://openreview.net/forum?id=cJd1BgZ9CS)
Efficient Model Reduction and Prediction of Superharmonic Resonances in Frictional and Hysteretic Systems
Creators: name: Porter, Justin H.
name: Brake, Matthew R. W.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Modern engineering structures exhibit nonlinear vibration behavior as designs are pushed to reduce weight and energy consumption. Of specific interest here, joints in assembled structures introduce friction, hysteresis, and unilateral contact resulting in nonlinear vibration effects. In many cases, it is impractical to remove jointed connections necessitating, the understanding of these behaviors. This work focuses on superharmonic and internal resonances in hysteretic and jointed systems. Superharmonic resonances occur when a nonlinear system is forced at an integer fraction of a natural frequency resulting in a large (locally maximal) response at an integer multiple of the forcing frequency. When a second vibration mode simultaneously responds in resonance at the forcing frequency, the combined phenomena is termed an internal resonance. First, variable phase resonance nonlinear modes (VPRNM) is extended to track superharmonic resonances in multiple degree of freedom systems exhibiting hysteresis. Then a novel reduced order model based on VPRNM (VPRNM ROM) is proposed to reconstruct frequency response curves faster than utilizing the harmonic balance method (HBM). The VPRNM ROM is demonstrated for a 3 degree of freedom system with a 3:1 internal resonance and for the jointed Half Brake-Reuss Beam (HBRB), which exhibits a 7:1 internal resonance. For the HBRB, new experimental results are used to validate the modeling approaches, and a previously developed physics-based friction model is further validated, achieving frequency predictions within 3%. For the considered cases, VPRNM ROM construction is up to 4 times faster than HBM, and the evaluation of the VPRNM ROM is up to 780,000 times faster than HBM. The modeling shows that both tangential slipping and normal direction clapping of the joint play important roles in exciting the superharmonic resonances in the HBRB.
description: 84 pages, 53 figures, 4 tables. Under Review at Mechanical Systems and Signal Processing
Black holes in the expanding Universe
Creators: name: Popławski, Nikodem
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The McVittie metric does not describe a physical black hole in an expanding universe because the curvature scalar and pressure at its event horizon are infinite. We show that extending this metric to an inhomogeneous scale factor, which depends on both the time and radial coordinate, removes those infinities by imposing the constancy of the Hubble parameter at the horizon. We also show that the Hubble parameters at the event horizons of all centrally symmetric black holes without accreting matter are equal to the same constant $H_\textrm{hor}=(Λ/3)^{1/2}$. Because of this equality and the equivalence to the Kottler metric near the horizon, black holes do not grow with the universe expansion. Black holes with accretion are described by this extension with different values of $H_\textrm{hor}$.
description: 6 pages
Contributions to topology optimization in flexible multibody dynamics
Creators: name: Moghadasi, Ali
Publisher: name: TUHH Universitätsbibliothek
Year: 2019
Subjects: subject: Topology optimization
subject: Flexible multibody system
subject: Dynamics
classificationCode: 620
subject: Ingenieurwissenschaften

description: Diese Arbeit leistet einen Beitrag zur Entwicklung von Topologieoptimierungsverfahren von flexiblen Mehrkörpersystemen. Die bisher verwendeten Kopplungen der Topologieoptimierung und der Mehrkörpersysteme weisen zwei Einschränkungen hinsichtlich ihrer Einsetzbarkeit in realen und industriellen Anwendungen auf: den hohen Rechenaufwand und die nur eingeschränkt mögliche Modellierung von nichtlineare Effekte wie beispielsweise den Kontakt von flexiblen Körpern. Diese Einschränkungen werden in dieser Arbeit behandelt und es werden Ansätze vorgestellt, die sowohl die Berücksichtigung von Kontakt als auch die hochdimensionale Topologieoptimierung von flexiblen Mehrkörpersystemen ermöglichen.
description: This work contributes to the development of the topology optimization of flexible multibody systems. The conventional coupling strategies of the topology optimization and the flexible multibody systems exhibit two limitations regarding its applicability in real-life and industrial application: the high computational cost that limits the optimization size, and the restricted capability of considering nonlinear effects such as contact in flexible structures. These limitations are both addressed in this work, and steps toward the modelling of nonlinearities and the large-scale topology optimization of flexible multibody systems are introduced.
The Collusion of Memory and Nonlinearity in Stochastic Approximation With Constant Stepsize
Creators: name: Huo, Dongyan
name: Zhang, Yixuan
name: Chen, Yudong
name: Xie, Qiaomin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this work, we investigate stochastic approximation (SA) with Markovian data and nonlinear updates under constant stepsize $α>0$. Existing work has primarily focused on either i.i.d. data or linear update rules. We take a new perspective and carefully examine the simultaneous presence of Markovian dependency of data and nonlinear update rules, delineating how the interplay between these two structures leads to complications that are not captured by prior techniques. By leveraging the smoothness and recurrence properties of the SA updates, we develop a fine-grained analysis of the correlation between the SA iterates $θ_k$ and Markovian data $x_k$. This enables us to overcome the obstacles in existing analysis and establish for the first time the weak convergence of the joint process $(x_k, θ_k)_{k\geq0}$. Furthermore, we present a precise characterization of the asymptotic bias of the SA iterates, given by $\mathbb{E}[θ_\infty]-θ^\ast=α(b_\text{m}+b_\text{n}+b_\text{c})+O(α^{3/2})$. Here, $b_\text{m}$ is associated with the Markovian noise, $b_\text{n}$ is tied to the nonlinearity, and notably, $b_\text{c}$ represents a multiplicative interaction between the Markovian noise and nonlinearity, which is absent in previous works. As a by-product of our analysis, we derive finite-time bounds on higher moment $\mathbb{E}[\|θ_k-θ^\ast\|^{2p}]$ and present non-asymptotic geometric convergence rates for the iterates, along with a Central Limit Theorem.
Control methods of powertrains with backlash and time delay
Creators: name: Pham, Hong Truc
Publisher: name: TUHH Universitätsbibliothek
Year: 2019
Subjects: subject: Powertrain Control
subject: Oscillations
subject: Backlash
subject: Time Delay
subject: Stability Diagrams
classificationCode: 600
subject: Technik

description: In dieser Arbeit werden Methoden zur Reduzierung von Triebstrangschwingungen während Lastwechsel bei konventionellen, parallel hybriden als auch elektrifizierten Antriebssträngen vorgestellt ohne die Performance im Triebstrang zu reduzieren. Die Methoden berücksichtigen die dominanten Dynamik im Triebstrang, die durch Spiel und Zeitverzögerungen hervorgerufen werden können. Differentielle Flachheit wird angewendet, um das Antriebssystem zu invertieren. Totzeitkompensationsmethoden werden entworfen und untereinander hinsichtlich Stabilität und Dämpfungsverhalten mit Hilfe von Stabilitätsdiagrammen verglichen. Die vielversprechendste Kompensationsmethode wird mit der flachheitsbasierten Steuerung kombiniert, um Antriebsstränge mit Spiel und Zeitverzögerung zu regeln.
description: In this work methods are presented to reduce driveline oscillations and preserve high performance during load changes for conventional, parallel hybrid electrified, and battery electrified powertrains. The methods address the dominant dynamics of backlash and time delay in the powertrain. Differentially flatness is used to invert the driveline system. Time delay compensation methods are formulated and compared with regard to stability and damping behavior using stability diagrams. The most promising compensation approach is combined with the nonlinear flatness-based feedforward control strategy to control powertrains with backlash and time delay.
Real-time simulation of flexible multibody systems in vehicle dynamics
Creators: name: Schmitt, Alexander Georg
Publisher: name: TUHH Universitätsbibliothek
Year: 2019
Subjects: subject: Vehicle Dynamics
subject: Quaternions
subject: Model Order Reduction
subject: Real-time simulation
classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: Echtzeitfähige Fahrdynamiksimulationen werden für weite Bereiche der Steuergeräteentwicklung und für Regelalgorithmen eingesetzt. Die dabei verwendeten Mehrkörpersimulationen vernachlässigen dabei elastische Verformungen, die durch Leichtbau und gestiegene NVH-Anforderungen mehr an Bedeutung gewinnen. In der vorliegenden Arbeit werden Algorithmen zur effizienten Simulation flexibler Mehrkörpersysteme mit dem Anwendungsbeispiel eines Fahrdynamikmodells mit einer flexiblen Fahrzeugkarosserie gezeigt. Dabei werden linear-implizite Löser für differenzial-algebraische Systeme und Quaternionen als effiziente Rotationsparametrisierung eingesetzt. Mithilfe von Modellreduktionsverfahren werden komplexe Finite-Elemente Modelle echtzeitfähig implementiert.
description: Real-time capable vehicle dynamics simulations are used for a wide range of ECU development and control algorithms. The multi-body simulations used in the process neglect elastic deformations that are becoming more important due to lightweight construction and increased NVH requirements in vehicle technology. In the present work, algorithms for the efficient simulation of flexible multi-body systems with the application example of a vehicle dynamics model with a flexible vehicle body are shown. Linear-implicit solvers for differential-algebraic systems and quaternions are used as efficient rotational parametrization. Using model reduction methods, complex finite element models are implemented in real-time.
Water Quality Analysis of Lost Lagoon and Associated Biofiltration Ponds at Stanley Park
Creators: name: Hwang, Logan
name: Kortekaas, Samantha
name: Li, Yinzhi
name: Tse, Annabel
Publisher: name: The University of British Columbia
Year: 2023

description: Lost Lagoon is a shallow freshwater-brackish water body located in Stanley Park, Vancouver. The lagoon is impacted by eutrophication, pollution, and the impact of invasive species. Precipitation causes runoff to carry contaminants from nearby Highway 99 into the biofiltration (BF) ponds in Lost Lagoon. BF ponds are designed to filter this runoff before it enters the lagoon using biological processes to remove pollutants, as well as slowing the flow of water to allow other contaminants to settle into sediments. This research was commissioned by the Stanley Park Ecological Society (SPES), which works closely with the Vancouver Park Board (VPB), local businesses, and community members to promote conservation and sustainable practices in the park. In August 2022, a fish die-off event prompted SPES to investigate the water quality and evaluate the efficiency of the BF ponds.
Effiziente Kontaktberechnung in flexiblen Mehrkörpersystemen
Creators: name: Tschigg, Stephan
Publisher: name: TUHH Universitätsbibliothek
Year: 2020
Subjects: subject: Stöße
subject: Flexible Mehrkörpersysteme
subject: Modellreduktion
subject: Kontaktsubmodelle
subject: Penalty-Methode
subject: Normalenkontakt
classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: Zur effizienten und genauen Stoßanalyse können reduzierte flexible Mehrkörpersysteme verwendet werden. Dabei wird zur präzisen Erfassung der auftretenden Spannungen und Deformationen eine elastische Beschreibung der Körper über Eigenmoden und statische Ansatzfunktionen verwendet. Letztere sind zur Darstellung der lokalen Effekte in der Kontaktzone notwendig. Sie bringen jedoch künstliche, sehr hohe Eigenfrequenzen in das reduzierte System ein und verschlechtern damit die numerische Effizienz. In der vorliegenden Arbeit werden zwei Ansätze für eine effiziente Kontaktsimulation mit reduzierten flexiblen Mehrkörpersystemen vorgestellt. Beim ersten Ansatz werden die künstlichen Eigenfrequenzen gedämpft während sie beim zweiten Ansatz in der dynamischen Simulation vernachlässigt werden. Zur Verifizierung dieser Ansätze werden detaillierte Finite-Elemente-Simulationen und Experimente verwendet.
description: For efficient and accurate impact analysis, reduced flexible multibody systems can be used. To capture the stresses and deformations in the colliding bodies precisely, an elastic description of the body using a set of eigenmodes and static shape functions has to be used. The latter are necessary to capture the local deformation effects in the contact area. However, they introduce artificial eigenfrequencies of very high magnitude to the reduced system and therefore, the numerical efficiency is reduced. In this thesis two approaches for efficient contact simulation using reduced flexible multibody systems are presented. In the first approach, the artificial eigenfrequencies are damped. In the second approach they are neglected in the dynamic simulation. To verify these two approaches, detailed finite element simulations and experiments are used.
Servo-constraints for inversion of underactuated multibody systems
Creators: name: Drücker, Svenja
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: Präzise inverse Modelle spielen eine wichtige Rolle bei der Regelung unteraktuierter Mehrkörpersysteme. Die Methode der Servobindungen wird hier angewendet, welche das Inversionsproblem als Satz differential-algebraischer Gleichungen (DAEs) formuliert. Je nach Systemtyp haben diese DAEs unterschiedliche Eigenschaften. In dieser Arbeit werden alle drei möglichen Systemtypen analysiert. Für differentiell flache Systeme zeigen experimentelle Ergebnisse, dass die Methode echtzeitfähig ist. Für minimalphasige Systeme werden unterschiedliche Integrationsmethoden hinsichtlich Effizienz und Genauigkeit verglichen. Für nicht-minimalphasige Systeme wird eine Vereinfachung der stabilen Inversion vorgeschlagen und es wird eine Umdefinition des Systemausgangs für flexible Körper vorgestellt.
description: Accurate inverse models are essential for the control of underactuated multibody systems. The servo-constraints approach is applied here, which formulates the inverse model problem as a set of differential-algebraic equations (DAEs). These DAEs have different properties depending on the system type. In this work, the servo-constraints approach is analyzed for all three possible system types. For differentially flat systems, experimental results demonstrate the real-time capabilities of the approach. For minimum phase systems, various integration methods are compared with respect to efficiency and accuracy. For non-minimum phase systems, a simplification of stable inversion is proposed and an output redefinition strategy is introduced for flexible bodies.
Learning, localization, and control of hydrobatic micro underwater robots for autonomous field exploration in confined environments
Creators: name: Dücker, Daniel-André
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: subject: Autonomous robotic systems
subject: Localization
subject: Environmental monitoring
subject: Robot learning
subject: micro autonomous underwater vehicles
subject: MLE@TUHH
classificationCode: 600
subject: Technik

description: Diese Dissertation behandelt die Aufklärung und Überwachung von Umweltfeldern mit kleinen autonomen Unterwasserroboter (µAUVs). Trotz jüngster Fortschritte sind recheneffiziente Methoden für Planung, Lokalisierung und Regelung von µAUVs weitgehend unerforscht. Die im Rahmen dieser Arbeit entwickelte µAUV-Plattform HippoCampus und seine Regelarchitektur erlauben agiles Manövrieren auf engstem Raum. Zu diesem Zweck wird ein Selbstlokalisierungssystem entwickelt, das visuelle, elektromagnetische und akustische Signale zur räumlichen Lokalisierung verwendet. Basierend auf Methoden der informationstheoretischen Regelung wird abschließend wird eine recheneffiziente Architektur zur autonomen Feldaufklärung mit mehreren Robotern vorgeschlagen. Diese kombiniert Deep-Reinforcement Learning mit einer stochastischen Feldmodellierung.
description: Exploration and monitoring of hazardous environmental fields are among the most promising tasks to be performed by micro autonomous underwater vehicles (µAUVs). Despite recent progress, computationally efficient solutions for guidance, navigation, and control are largely unsolved for agile µAUVs. First, the hydrobatic micro robot platform HippoCampus is presented along with a control system that allows agile maneuvering in confined spaces. Furthermore, an embedded self-localization system is developed which consists of modules using visual, electromagnetic, and acoustic ranging. Finally, an informative path planning framework for autonomous field exploration with multiple robot agents is proposed. It combines a deep reinforcement learning planner with a stochastic representation of the environmental field.
A new computational method for the fluid-structure interaction in random nonlinear ocean waves
Creators: name: Hollm, Marten
Publisher: name: TUHH Universitätsbibliothek
Year: 2025
Subjects: subject: Computational Method
subject: Fluid-structure Interaction
subject: Nonlinear Schrödinger Equation
subject: Nonlinear Ocean Waves
subject: Irregular Sea
classificationCode: 6
subject: Technology::620: Engineering::620.1: Engineering Mechanics and Materials Science
classificationCode: 5
subject: Natural Sciences and Mathematics::530: Physics
classificationCode: 6
subject: Technology::627: Hydraulic Engineering

description: An efficient computation of the fluid-structure interaction (FSI) between mechanical structures and ocean waves is an important topic in many ocean engineering and naval architecture applications. However, the numerical computation of the FSI is often very expensive. In this work, a new method is developed to calculate the FSI in random nonlinear ocean waves more efficiently. The corresponding approach is based on the nonlinear Schrödinger equation, which can be solved numerically efficiently. The new method to calculate the FSI in random nonlinear ocean waves is investigated concerning its application areas, accuracy, stability, and computational efficiency.
description: Eine effiziente Berechnung der Fluid-Struktur-Interaktion (FSI) zwischen mechanischen Strukturen und Meereswellen ist für viele meerestechnische Anwendungen interessant. Allerdings ist die numerische Berechnung der FSI oft sehr rechenaufwändig. In dieser Arbeit wird eine neue Methode entwickelt, um die FSI in zufälligen nichtlinearen Meereswellen effizienter zu berechnen. Der entsprechende Ansatz basiert auf der nichtlinearen Schrödinger-Gleichung, die numerisch effizient gelöst werden kann. Die neue Methode zur Berechnung der FSI in zufälligen nichtlinearen Meereswellen wird hinsichtlich ihrer Anwendungsbereiche, Genauigkeit, Stabilität und Recheneffizienz untersucht.
Research Data Management and Open Science
Creators: name: Haase, Robert
Publisher: name: Zenodo
Year: 2025

description: This slides covers aspects of research data management (RDM) and open science such as the RDM life cylce, FAIR principles, sharing data on Zenodo, rights and duties of scientists in the RDM context. We also cover classification of openness of research software projects, software environments (e.g. using conda) and open source software licenses.
Hydrodynamics and the eigenstate thermalization hypothesis
Creators: name: Capizzi, Luca
name: Wang, Jiaozi
name: Xu, Xiansong
name: Mazza, Leonardo
name: Poletti, Dario
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The eigenstate thermalization hypothesis (ETH) describes the properties of diagonal and off-diagonal matrix elements of local operators in the eigenenergy basis. In this work, we propose a relation between (i) the singular behaviour of the off-diagonal part of ETH at small energy differences, and (ii) the smooth profile of the diagonal part of ETH as a function of the energy density. We establish this connection from the decay of the autocorrelation functions of local operators, which is constrained by the presence of local conserved quantities whose evolution is described by hydrodynamics. We corroborate our predictions with numerical simulations of two non-integrable spin-1 Ising models, one diffusive and one super-diffusive, which we perform using dynamical quantum typicality up to 18 spins.
description: Minor modifications. Closer to the published version
Final Project : Parallels between Pottery and My Identity as a Second-Generation Chinese Growing Up in Canada
Creators: name: Truong, Amalee
Publisher: name: The University of British Columbia
Year: 2023

description: A common experience among minoritized artists is the internal struggle associated with creating art that is traditional to their culture. For example, a Chinese Canadian artist might want to showcase Chinese styles in their art because that is what best represents them; however, the question of whether one is “enough” of that minoritized culture to even use that style often comes up. It makes them question whether they have the credibility to use such cultural styles, and whether they would be seen as merely appropriating a style that they don’t have enough credibility to use. And does using that style create the perception that their usage signals representation? This all creates additional pressures on the artist to do a really good job, lest their potential failure reflects poorly on their entire community. With all of these pressures, though, it is still imperative that minoritized artists push forward and create a style that is their own. Dive into Amalee’s thought process as she discusses similar struggles while creating two ceramic vases to represent her and her brother. If you were in a similar position, how would you reconcile the need for representation with the worries about being too much of an imposter to engage in representation?
Journal Review THE PORTRAYAL OF AMERICAN CULTURE AND SUICIDE IN THE SONG "1-800-273-8255" SUNG BY LOGIC (FT. ALESSIA CARA & KHALID)
Creators: name: Young, Braydon
Publisher: name: Zenodo
Year: 2022
Subjects: Meaning, suicide, songs, global issues, purpose.

description: This paper will analyze a song entitled 1-800-273-8255 sung by Logic, ft. Alessia Cara and Khalid. This analysis will focus on the meaning of the song lyrics that relate to the issue of suicide and also the purpose of the text features and context in the song. This song is a literary work that contains unwanted events. This song tells about the way people in the United States and even the world, face and respond to the problems they have in ways other than suicide (Niederkrotenthaler & Draper, 2021). Therefore, we can discuss other options that the community can use. The reason for choosing this song is because it illustrates the importance of the issue globally and aims to warn the issue.
Space-time first-order correlations of an open Bose-Hubbard model with incoherent pump and loss
Creators: name: Zündel, Martina
name: Mazza, Leonardo
name: Canet, Léonie
name: Minguzzi, Anna
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the correlation properties in the steady state of driven-dissipative interacting bosonic systems in the quantum regime, as for example non-linear photonic cavities. Specifically, we consider the Bose-Hubbard model on a periodic chain and with spatially homogeneous one-body loss and pump within the Markovian approximation. The steady state is non-thermal and is formally equivalent to an infinite-temperature state with finite chemical potential set by the dissipative parameters. While there is no effect of interactions on the steady state, we observe a nontrivial behaviour of the space-time two-point correlation function, obtained by exact diagonalisation. In particular, we find that the decay width of the propagator is not only renormalised at increasing interactions, as it is the case of a single non-linear resonator, but also at increasing hopping strength. Furthermore, we numerically predict at large interactions a plateau value of the decay rate which goes beyond perturbative results in the interaction strength. We then compute the full spectral function, finding that it contains both a dispersive free-particle like dispersion at low energy and a doublon branch at energy corresponding to the on-site interactions. We compare with the corresponding calculation for the ground state of a closed quantum system and show that the driven-dissipative nature -- determining both the steady state and the dynamical evolution -- changes the low-lying part of the spectrum, where noticeably, the dispersion is quadratic instead of linear at small wavevectors. Finally, we compare to a high temperature grand-canonical equilibrium state and show the difference with respect to the open system stemming from the additional degree of freedom of the dissipation that allows one to vary the width of the dispersion lines.
description: 36 pages, 15 figures
Variational Mapping of Chern Bands to Landau Levels: Application to Fractional Chern Insulators in Twisted MoTe$_2$
Creators: name: Li, Bohao
name: Wu, Fengcheng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a theoretical study of mapping between Chern bands and generalized Landau levels in twisted bilayer MoTe$_2$ ($t$MoTe$_2$), where fractional Chern insulators down to zero magnetic fields have been observed. We construct an exact Landau-level representation of moiré bands, where the basis functions, characterized by a uniform quantum geometry, are derived from Landau-level wavefunctions dressed by spinors aligned or antialigned with the layer pseudospin skyrmion field. We further generalize the dressed zeroth Landau level to a variational wavefunction with an ideal yet nonuniform quantum geometry and variationally maximize its weight in the first moiré band. The variational wavefunction has a high overlap with the first band and quantitatively captures the exact diagonalization spectra of fractional Chern insulators at hole-filling factors $ν_h=2/3$ and $3/5$, providing a clear theoretical mechanism for the formation and properties of the fractionalized states. Our work introduces a variational approach to studying fractional states by mapping Chern bands to Landau levels, with application to other systems beyond $t$MoTe$_2$ also demonstrated.
description: 13 pages, 9 figures. Published in Physical Review B as Editors' Suggestion
Mott insulating phase and coherent-incoherent crossover across magnetic phase transition in 2D antiferromagnetic CrSBr
Creators: name: Wu, Fan
name: Zhang, Xuefeng
name: Chen, Yi
name: Pei, Ding
name: Zhan, Mengwen
name: Tao, Zicheng
name: Chen, Cheng
name: Lu, Shipeng
name: Chen, Jingzhi
name: Tang, Shujie
name: Wang, Xia
name: Guo, Yanfeng
name: Yang, Lexian
name: Zhang, Yan
name: Chen, Yulin
name: Mi, Qixi
name: Li, Gang
name: Liu, Zhongkai
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In two-dimensional van der Waals magnetic materials, the interplay between magnetism and electron correlation can give rise to new ground states and lead to novel transport and optical properties. A fundamental question in these materials is how the electron correlation manifests and interacts with the magnetic orders. In this study, we demonstrate that the recently discovered 2D antiferromagnetic material, CrSBr, is a Mott insulator, through the combined use of resonant and temperature-dependent angle-resolved photoemission spectroscopy techiniques, supplemented by dynamical mean-field theory analysis. Intriguingly, we found that as the system transitions from the antiferromagnetic to the paramagnetic phases, its Mott bands undergo a reconfiguration, and a coherent-incoherent crossover, driven by the dissolution of the magnetic order. Our findings reveal a distinctive evolution of band structure associated with magnetic phase transitions, shedding light on the investigation of intricate interplay between correlation and magnetic orders in strongly correlated van der Waals magnetic materials.
Ritlecitinib in severe alopecia areata: a profile of its use
Creators: name: Shirley, Matt
Publisher: name: Adis Journals
Year: 2024
Subjects: Medicine
Dermatology

description:   
Acknowledgements The manuscript was reviewed by: D. Ioannides, First Department of Dermatology-Venereology, Aristotle University Medical School Hospital for Skin and Venereal Diseases, Thessaloniki, Greece; and A. G. Messenger, Department of Dermatology, University of Sheffield, Sheffield, UK. During the peer review process, Pfizer, the marketing authorization holder of ritlecitinib, was also offered an opportunity to provide a scientific accuracy review of their data. Changes resulting from comments received were made on the basis of scientific and editorial merit.

Declarations
Funding The preparation of this review was not supported by any external funding.
Authorship and conflict of interest M. Shirley is a salaried employee of Adis International Ltd/Springer Nature and declares no relevant conflicts of interest. All authors contributed to this article and are responsible for its content.
Ethics approval, Consent to participate, Consent for publication, Availability of data and material, Code availability Not applicable.
Additional information about this Adis Drug Review can be found here.

Abstract
Ritlecitinib (Litfulo™) is a valuable new option for the treatment of severe alopecia areata in individuals aged ≥ 12 years. Of note, ritlecitinib, a dual selective Janus kinase (JAK)-3/TEC family kinase inhibitor, is the first targeted treatment for severe alopecia areata to be approved for use in adolescents. In the pivotal, randomised, double-blind, placebo-controlled, phase 2b/3 ALLEGRO trial in adults and adolescents with alopecia areata with ≥ 50% scalp hair loss, once-daily oral ritlecitinib 50 mg significantly increased the percentage of patients achieving ≤ 20% scalp hair loss at 24 weeks. Ritlecitinib therapy was also associated with eyebrow and eyelash regrowth. Response rates for key efficacy outcomes in the pivotal trial continued to increase with treatment up to 48 weeks. Longer-term data indicate that responses are sustained with continued treatment. Ritlecitinib is generally well tolerated, with most adverse events being of mild severity and not requiring dose interruption or treatment discontinuation.
 © Springer Nature Switzerland AG 2024
Topological weak-measurement-induced geometric phases revisited
Creators: name: Puentes, Graciana
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an analytical and numerical study of a class of geometric phase induced by weak measurements. In particular, we analyze the dependence of the geometric phase on the winding ($W$) of the polar angle ($φ$), upon a sequence of $N$ weak measurements of increased magnitude ($c$), resulting in the appearance of a multiplicity of critical measurement-strength parameters where the geometric phase becomes stochastic. Adding to the novelty of our approach, we not only analyze the weak-measurement induced geometric phase by a full analytic derivation, valid in the quasicontinuous limit ($N \rightarrow \infty$), but also we analyze the induced geometric phase numerically, thus enabling us to unravel the finite-$N$ interplay of the geometric phase with the measurement strength parameter, and its stability to perturbations in the measurements protocol.
description: 11 pages, 8 figures
Che cosa è stato l’Illuminismo:  rivoluzione della mente o rivoluzione culturale dell’Antico Regime?
Creators: name: Ferrone, Vincenzo
Publisher: name: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII
Year: 2016
Subjects: Anglo-Saxon Historiography; Italian Historiography; Enlightenment; History of culture; Radical Enlightenment

description: After the fall of the Berlin Wall in 1989, international studies in historiography gave way to a strong process of critical reassessment. In the same way, the historiography of Enlightenment is currently undergoing a rapid and decisive transformation similar to that which occurred in the West after World War II. The Anglo-Saxon world is certainly at the forefront of this process and even, it seems, guides its destiny: especially the US, where the monumental works of Jonathan Israel provide an example worthy of attention. This paper, nonetheless, aims to discuss Israel’s research hypotheses, reductively founded on the primacy of the history of philosophy and on the idea of a so-called Radical Enlightenment dominated by the thought and ideas of Spinoza, in contrast with thirty years of research on the history of culture conducted by major scholars in every part of the world, and in Italy in particular. A history of culture that has long been able to innovate and produce research hypotheses open to the future: from human rights to cultural practices, from constitutionalism to the relationship between art and politics as recognised by the nascent public opinion.
description: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII, Vol 1 (2016)
Revolutionary Time and Regeneration
Creators: name: Hunt, Lynn
Publisher: name: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII
Year: 2016
Subjects: Time; Revolution; Calendar; Ancien Régime; Modernity

description: Beginning in 1789 and escalating in intensity into at least 1793, a new temporal schema took shape in which revolutionary time pulverized the foundations of the old order. Revolution came to mean rejecting the past, introducing a sense of rupture in secular time, maximizing and elongating the present in order to turn it into a moment of personal and collective transformation, and shaping the future in accordance with the discoveries made in the present. Time ceased being a given. It became a medium of endless potential for change that could be willed, that is, enacted by conscious choice.
description: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII, Vol 1 (2016)
Women in love: Gluck’s Orpheus as a source  of romantic consolation in Vienna, Paris, and Stockholm
Creators: name: Rice, John A.
Publisher: name: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII
Year: 2016
Subjects: Opera; Gluck; Orfeo; Orpheus; Sensibility

description: Among those who witnessed early performances of Gluck's Orfeo ed Euridice were Princess Isabelle of Parma, Julie de Lespinasse, and Countess Sophie Fersen. Orpheus, and the music Gluck wrote for him, stirred up similar responses in these passionate young women, all of whom found in the protagonist's tragic plight consolation for own romantic yearning. This paper explores their emotional states, as documented in their letters, and offers some explanations for their identification with a male character from Greek mythology, as brought to life by Gluck's music and the men who sang it.
description: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII, Vol 1 (2016)
Demonstrating experimentally the encoding and dynamics of an error-correctable logical qubit on a hyperfine-coupled nuclear spin qudit
Creators: name: Lim, Sumin
name: Vaganov, Mikhail V.
name: Liu, Junjie
name: Ardavan, Arzhang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The realization of effective quantum error correction protocols remains a central challenge in the development of scalable quantum computers. Employing high-dimensional quantum systems (qudits) can offer more hardware-efficient protocols than qubit-based approaches. Using electron-nuclear double resonance, we implement a logical qubit encoded on the four states of a I=3/2 nuclear spin hyperfine-coupled to a S=1/2 electron spin qubit; the encoding protects against the dominant decoherence mechanism in such systems, fluctuations of the quantizing magnetic field. We explore the dynamics of the encoded state both under a controlled application of the fluctuation and under natural decoherence processes. Our results confirm the potential of these proposals for practical, implementable, fault tolerant quantum memories.
Culture imprimée, cultures équestres dans l’Europe moderne
Creators: name: Roche, Daniel
Publisher: name: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII
Year: 2016
Subjects: Horses; Equestrian Culture; Eighteenth Century; Books; Sociology

description: The role of the horses in traditional societies is enlightened by comparative analysis of retrospective bibliographies concerning equestrian culture in France, in Great Britain, in Spain and partly in Germany (until the eighteenth century), from the Renaissance to the contemporary period. The inventory of books, their usual classification allow to see how sociocultural dynamics act in different countries; it makes clearer also functions and material, pertinent forms which organize the main interests in the world of horses and riders: usefulness, power and knowledge. Here we will reach the ambitions proposed by the Sociology of texts and those about history of cultural practices.
description: Diciottesimo Secolo. Rivista della Società Italiana di Studi sul Secolo XVIII, Vol 1 (2016)