cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimization of Rotary-Magnet assisted ECSM on borosilicate-glass using machine learning
Creators: name: Bahar, Dil
name: Dvivedi, Akshay
name: Kumar, Pradeep
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Owing to the incapability of the existing techniques, Electrochemical Spark Machining (ECSM) is transpiring to micro machine the glass for potential applications in micro domain. However, in ECSM, the bubble accumulation and poor flushing lead to the generation of a non-uniform gas film, resulting in the deterioration of Hole Circularity (HC) and Surface Roughness (SR). Therefore, present communication is an attempt toward the concept of Rotary-Magnet assisted ECSM (RM-ECSM) to produce the micro holes in the borosilicate glass with better quality characteristics (higher HC and lower SR), which are required for better performance of glass vias in RF-MEMS. The evolutionary algorithm and Machine Learning (ML) have been adopted for optimization. From optimization, the values of optimal input parameters were obtained as follows: Applied voltage = 43.46 V; Electrolyte-temperature = 45.93 ֯ C; Pulse on time = 3.28 ms; Magnetic rotation = 551 rpm with corresponding values of HC and SR as 79.28% and 3 um respectively. Finally, these outcomes were validated by Levenberg-Marquardt algorithm (ML).
Oscillatory instability and stability of stationary solutions in the parametrically driven, damped nonlinear Schrödinger equation
Creators: name: Carreño-Navas, F.
name: Alvarez-Nodarse, R.
name: Quintero, N. R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35C08, 37K45

description: We found two stationary solutions of the parametrically driven, damped nonlinear Schrödinger equation with nonlinear term proportional to $|ψ(x,t)|^{2 κ} ψ(x,t)$ for positive values of $κ$. By linearizing the equation around these exact solutions, we derive the corresponding Sturm-Liouville problem. Our analysis reveals that one of the stationary solutions is unstable, while the stability of the other solution depends on the amplitude of the parametric force, damping coefficient, and nonlinearity parameter $κ$. An exceptional change of variables facilitates the computation of the stability diagram through numerical solutions of the eigenvalue problem as a specific parameter $\varepsilon$ varies within a bounded interval. For $κ<2$ , an {\it oscillatory instability} is predicted analytically and confirmed numerically. Our principal result establishes that for $κ\ge 2$, there exists a critical value of $\varepsilon$ beyond which the unstable soliton becomes stable, exhibiting {\it oscillatory stability}.
description: 16 pages, 5 figures
title: „Was interessiert Frauen an Technik und Technikjournalismus?“: Eine explorative Studie mit unterschiedlich technikaffinen Frauen
Creators: name: Leonhardt, Nina
name: Keil, Susanne
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2021, no. 48, p. 64
Harnessing ChatGPT for thematic analysis: Are we ready?
Creators: name: Lee, V Vien
name: van der Lubbe, Stephanie C. C.
name: Goh, Lay Hoon
name: Valderas, Jose M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: ChatGPT is an advanced natural language processing tool with growing applications across various disciplines in medical research. Thematic analysis, a qualitative research method to identify and interpret patterns in data, is one application that stands to benefit from this technology. This viewpoint explores the utilization of ChatGPT in three core phases of thematic analysis within a medical context: 1) direct coding of transcripts, 2) generating themes from a predefined list of codes, and 3) preprocessing quotes for manuscript inclusion. Additionally, we explore the potential of ChatGPT to generate interview transcripts, which may be used for training purposes. We assess the strengths and limitations of using ChatGPT in these roles, highlighting areas where human intervention remains necessary. Overall, we argue that ChatGPT can function as a valuable tool during analysis, enhancing the efficiency of the thematic analysis and offering additional insights into the qualitative data.
description: 23 pages, 7 figures, 3 tables, 1 textbox
Global Impact and Balancing Act: Deciphering the Effect of Fluorination on B1s Binding Energies in Fluorinated $h$-BN Nanosheets
Creators: name: Xiao, Yang
name: Zhang, Jun-Rong
name: Wang, Sheng-Yu
name: Hua, Weijie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: X-ray photoelectron spectroscopy (XPS) is an important characterization tool in the pursuit of controllable fluorination of two-dimensional hexagonal boron nitride ($h$-BN). However, there is a lack of clear spectral interpretation and seemingly conflicting measurements exist. To discern the structure-spectroscopy relation, we performed a comprehensive first-principles study on the boron 1s edge XPS of fluorinated $h$-BN (F-BN) nanosheets. By gradually introducing 1--6 fluorine atoms into different boron or nitrogen sites, we created various F-BN structures with doping ratios ranging from 1-6\%. Our calculations reveal that fluorines landed at boron or nitrogen sites exert competitive effects on the B1s binding energies (BEs), leading to red or blue shifts in different measurements. Our calculations affirmed the hypothesis that fluorination affects 1s BEs of all borons in the $π$-conjugated system, undermining the transferability from $h$-BN to F-BN. Additionally, we observe that BE generally increases with higher fluorine concentration when both borons and nitrogens are non-exclusively fluorinated. These findings provide critical insights into how fluorination affects boron's 1s BEs, contributing to a better understanding of fluorination functionalization processes in $h$-BN and its potential applications in materials science.
description: 4 figures
Signed_ORIENT_SAP_final.pdf
Creators: name: Kasza, Jessica
name: Grantham, Kelsey
name: Botfield, Jessica
name: Mazza, Danielle
name: Rilloraza, Mae
Publisher: name: Monash University
Year: 2025

description: The statistical analysis plan to inform analysis of the ORIENT trial (ANZCTR Identifier: ACTRN12622000086763)
title: (K)ein Geschlecht oder viele? Die Perspektiven Geschlecht(er), Gender oder Queer in der Wissenschaft: Bericht zum Mittelbauworkshop des Netzwerks Frauen- und Geschlechterforschung NRW am 04. Dezember 2020 (digital)
Creators: name: Schramme, Sabrina
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2020
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2020, no. 47, p. 69
title: Personenstand: divers – Antidiskriminierung und die Gleichstellung aller Geschlechter: Fachtagung am 25. Juni 2020 an der FernUniversität in Hagen
Creators: name: Engel, Antke
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2020
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2020, no. 47, p. 73
Realizing attractive interacting topological surface fermions: A resonating TI- thin film hybrid platform
Creators: name: Vijayan, Saran
name: Zhou, Fei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this article, we propose a practical way to realize topological surface Dirac fermions with tunable attractive interaction between them. The approach involves coating the surface of a topological insulator with a thin film metal and utilizing the strong-electron phonon coupling in the metal to induce interaction between the surface fermions. We found that for a given TI and thin film, the attractive interaction between the surface fermions can be maximally enhanced when the Dirac point of the TI surface resonates with one of the quasi-2D quantum-well bands of the thin film. This effect can be considered to be an example of 'quantum-well resonance'. We also demonstrate that the superconductivity of the resonating surface fermions can be further enhanced by choosing a strongly interacting thin film metal or by tuning the spin-orbit coupling of the TI. This TI-thin film hybrid configuration holds promise for applications in Majorana-based quantum computations and for the study of quantum critical physics of strongly attractively interacting surface topological matter with emergent supersymmetry.
description: 28 pages, 16 figures
title: Mapping women’s and gender rights as a globally contested arena: Report of the opening conference of the ZiF Research Group “Global contestations of Women’s and Gender Rights”, 7–9 October 2020 at the Center for Interdisciplinary Research (ZiF), Bielefeld University
Creators: name: de Souza Lima, Lívia
name: Farneti, Alice
name: Maier, Lisa-Marie
name: Yazdi, Azadeh
name: Patch, Holly
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2020
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2020, no. 47, p. 76
title: „Dass Netzwerke Einfluss haben, ist doch normal …“ – Zu den Karrierebedingungen von Postdocs in den Ingenieurwissenschaften und der Informationstechnologie: Tagungsbericht zum Abschlussworkshop des Projekts GenderNetz am 8. und 9. Oktober 2020
Creators: name: Schulz, Astrid
name: Dahmen-Adkins, Jennifer
name: Wolffram, Andrea
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2020
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2020, no. 47, p. 80
Efficient separate quantification of state preparation errors and measurement errors on quantum computers and their mitigation
Creators: name: Yu, Hongye
name: Wei, Tzu-Chieh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Current noisy quantum computers have multiple types of errors, which can occur in the state preparation, measurement/readout, and gate operation, as well as intrinsic decoherence and relaxation. Partly motivated by the booming of intermediate-scale quantum processors, measurement and gate errors have been recently extensively studied, and several methods of mitigating them have been proposed and formulated in software packages (e.g., in IBM Qiskit). Despite this, the state preparation error and the procedure to quantify it have not yet been standardized, as state preparation and measurement errors are usually considered not directly separable. Inspired by a recent work of Laflamme, Lin, and Mor [Phys. Rev. A 106, 012439 (2022)], we propose a simple and resource-efficient approach to quantify separately the state preparation and readout error rates. With these two errors separately quantified, we also propose methods to mitigate them separately, especially mitigating state preparation errors with linear (with the number of qubits) complexity. As a result of the separate mitigation, we show that the fidelity of the outcome can be improved by an order of magnitude compared to the standard measurement error mitigation scheme. We also show that the quantification and mitigation scheme is resilient against gate noise and can be immediately applied to current noisy quantum computers. To demonstrate this, we present results from cloud experiments on IBM's superconducting quantum computers. The results indicate that the state preparation error rate is also an important metric for qubit metrology that can be efficiently obtained.
description: 18 pages, 11 figures
Environmental assessment and agronomic performance of biosolids-derived biochar in controlled environment studies
Creators: name: Sinha, Payel
Publisher: name: University of Southern Queensland
Year: 2024
Subjects: heavy metals
soil amendment
gasification
pyrolysis
p-XRF (Portable X-Ray Fluorescence)
sewage sludge

description: Increasing regulatory restrictions on traditional land application of biosolids (treated sewage sludge) in Australia has driven the need to explore alternative treatment technologies that render biosolids (BS) suitable for beneficial use while mitigating environmental risks. Thermal treatment of biosolids is currently being investigated in Australia as an alternative management practice; however, the characteristics of the biochar product is poorly understood. This thesis evaluates the safe land application of biosolids-derived biochar (BDB) produced from the gasification of BS at an Australian wastewater treatment plant using two contrasting Australian soil types (Ferrosol and Chromosol) at three application rates (2.5%, 5% and 10% w/w). Leaching columns were used to assess the environmental risk of heavy metal concentration and mobility in soils treated with BDB compared with BS. The study applied the novel use of p-XRF as a rapid and low-cost technique for investigating leaching behaviour. While BDB-amended soils contained higher total metal concentrations, the leachates showed significantly lower concentrations of soluble copper and chromium compared to those treated with BS. The study underscores a potential mitigation of environmental risks associated when applying BDB as a soil amendment. The combined assessment of agronomic and heavy metal dynamics of BDB was performed using glasshouse studies and compared to BS. BDB significantly increased the dry matter yield of ryegrass, compared to control. At 2.5% w/w application rate BDB increased yield by 180% in Chromosol and 192% in Ferrosol compared to control. Higher application rates of BDB did not affect agronomic efficiency. Importantly, BDB significantly reduced heavy metal uptake (chromium, copper, and zinc) by ryegrass compared to BS. Soil incubation studies supported these findings, showing that 2.5% BDB increased urease activity by 50% in Chromosol and 23% in Ferrosol, relative to control soil, which is beneficial for nitrogen cycling. While BDB at the same rate decreased acid phosphatase activity to 12% in Chromosol and 20% in Ferrosol, which shows a potential impact on phosphorous availability. The study advocates for a 2.5% application rate of BDB to optimize agricultural outputs while safeguarding soil and plant health. The findings also highlight the importance of tailored soil management practices that consider specific soil characteristics, and application rates to optimize benefits and minimize environmental risks. Further research is recommended to explore land application of BDB using field trials to understand long-term impacts and connect the results of the current research observed in controlled environment studies.
title: Hate Speech im Hochschulalltag – Über den Umgang mit aggressiven Reaktionen: Bericht zur gleichnamigen digitalen Veranstaltung mit Ingrid Brodnig, durchgeführt am 08. Oktober 2020 von der Rektoratsstabsstelle Integration Team – Human Resources, Gender and Diversity Management (IGaD) der RWTH Aachen und der Informationstechnologie
Creators: name: Liedtke, Ramona
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2020
Subjects: subject: 300

description: Journal Netzwerk Frauen- und Geschlechterforschung NRW, vol. 2020, no. 47, p. 85
Semidefinite programming and linear equations vs. homomorphism problems
Creators: name: Ciardo, Lorenzo
name: Živný, Stanislav
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Complexity (cs.CC)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We introduce a relaxation for homomorphism problems that combines semidefinite programming with linear Diophantine equations, and propose a framework for the analysis of its power based on the spectral theory of association schemes. We use this framework to establish an unconditional lower bound against the semidefinite programming + linear equations model, by showing that the relaxation does not solve the approximate graph homomorphism problem and thus, in particular, the approximate graph colouring problem.
The impact of outliers on pulsar timing arrays
Creators: name: Fumagalli, Giulia
name: Shaifullah, Golam
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The detection of gravitational waves with Pulsar Timing Arrays (PTAs) requires precise measurement of the difference between the pulsars' timing models and their observed pulses, as well as dealing with numerous and sometimes hard to diagnose sources of noise. Outliers may have an impact on this already difficult procedure, especially if the methods used are not robust to such anomalous observations. Until now, no complete and practical quantification of their effects on PTA data has been provided. With this work, we aim to fill this gap. We corrupt simulated datasets featuring an increasing degree of complexity with varying percentages of uniformly distributed outliers and investigate the impact of the latter on the recovery of the injected gravitational wave signals and pulsar noise terms. We found that the gravitational waves signal, due to its expected correlation, is more robust against these anomalous observations when compared to the other injected processes. This result is especially relevant in the context of the emerging statistical evidence for the gravitational wave background in PTA datasets, further strengthening those claims.
description: 14 pages, 15 figures
A vector geometry–based eddy detection algorithm and eddy and multi-factor spatio-temporal matching algorithm
Creators: name: Dong, Changming
name: Liu, Lingxiao
name: Nencioli, Francesco
name: Liu, Yu
name: Xu, Guangjun
Publisher: name: figshare
Year: 2022
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 40403 Geophysical Fluid Dynamics
subject: Oceanography
subject: 40305 Marine Geoscience

description: The eddy detection method is based on an automatic eddy ecognition algorithm that uses the geometric characteristics of a flow field . The data used for automatic eddy detection in this study is from “all-satellite” daily Delayed Time (DT) DUACS (Data Unification and Altimeter Combination System) 2018 version (https://cds.climate.copernicus.eu/). All data processing and calculations in the process of constructing the data set are completed by MATLAB R2016b (http://www.mathworks.com). The eddy and multi-element spatio-temporal matching algorithm delineates a certain range of matching areas according to the eddy radius, and combines the temporal resolution of multi-element data to match the background field of a single eddy.See the user manual for specific code operation.
title: Netzwerke: Paradigmatische Grundlage chinabezogener Wirtschaftsforschung?: Eine kritische Betrachtung ausgewählter Literatur
Creators: name: Herrmann-Pillath, Carsten
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 1996
Subjects: subject: 33
subject: 330

description: Duisburger Arbeitspapiere zur Ostasienwirtschaft, no. 29
Thermodynamic formalism for discontinuous maps and statistical properties for their equilibrium states
Creators: name: Bilbao, Rafael
name: Lucena, Rafael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A25, 37A10, 37C30, 37D50

description: In this article, we develop an innovative functional-analytic framework to establish existence, uniqueness, regularity of disintegration, and statistical properties of equilibrium states for a broad class of dynamical systems, potentially discontinuous and not necessarily locally invertible. Our approach is applied to a family of piecewise partially hyperbolic maps and associated classes of potentials. We further prove several statistical limit theorems, including exponential decay of correlations, and propose related questions and conjectures. A collection of examples illustrating the applicability of our results is provided, including partially hyperbolic attractors over horseshoes, discontinuous systems, non-invertible dynamics semi-conjugated to maps such as the Manneville-Pomeau map, and fat solenoidal attractors.
description: We added Examples 3.7 and 3.8, applying our results to hyperbolic attractors over a horseshoe and to Tsujii's measures, establishing thermodynamic formalism and revealing new statistical properties. We also include a result extending our theorems to potentials not necessarily constant along the fibers. arXiv admin note: text overlap with arXiv:2008.05679, arXiv:1911.06457
title: Wachstum, Mobilität und sozio-ökonomischer Wandel: Traditionelle kulturelle Strukturen als Medium der Modernisierung Chinas
Creators: name: Haaf, Katrin
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 1996
Subjects: subject: 33
subject: 330

description: Duisburger Arbeitspapiere zur Ostasienwirtschaft, no. 27
Vibronic fine structure in the nitrogen 1s photoelectron spectra from Franck-Condon simulations. III. Rules for amine/imine N atoms in small N-heterocycles
Creators: name: Wei, Minrui
name: Zuo, Junxiang
name: Tian, Guangjun
name: Hua, Weijie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Vibronic coupling plays a crucial role in X-ray photoelectron spectra (XPS) of molecules. In a series of three papers, we present a comprehensive exploration of the N-heterocycles family, known for their diverse structures, to summarize the general rules of vibronic coupling in high-resolution vibrationally-resolved XPS spectra at the N1s edge. Building upon our previous studies on six-membered monocyclic azines [Phys. Rev. A 106, 022811 (2022)] and fused bicyclic compounds indoles with five and six members [Phys. Rev. A 108, 022816 (2023)], in this study, we focus on investigating a series of 12 five-membered N-heterocycles using Franck-Condon simulations, incorporating Duschinsky rotation effects and density functional theory. Our calculations reveal distinct spectral characteristics of amine and imine within these 12 systems in binding energies, spectral characteristics, structural changes, vibrational coupling strengths, and effects of hydrogenation. Furthermore, we expand our analysis to encompass all 35 N-heterocycles discussed in the three papers and consolidate these findings into the general rules. we find that 1s ionization in amine nitrogen induces more substantial geometrical changes, resulting in larger vibronic coupling strength compared to imine nitrogens. The spectra of imine nitrogens exhibit two distinct characteristic peaks originating from the 0-0 and 0-1 transitions, whereas the spectra of amine nitrogens are characterized by a broad peak with numerous weak fingerprints due to significant mixing of various 0-$n$ transitions. We observe that amine (imine) nitrogens generally cause a negative (positive) change in zero-point vibrational energy. This study provides valuable insights into vibronic coupling in N-heterocycles, shedding light on the distinguishing features and behavior of amine and imine nitrogens in vibrationally-resolved XPS spectra.
description: 9 figures
Multidimensional Electrical Networks and their Application to Exponential Speedups for Graph Problems
Creators: name: Li, Jianqiang
name: Zur, Sebastian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recently, Apers and Piddock [TQC '23] strengthened the connection between quantum walks and electrical networks via Kirchhoff's Law and Ohm's Law. In this work, we develop a new multidimensional electrical network by defining Alternative Kirchhoff's Law and Alternative Ohm's Law based on the multidimensional quantum walk framework by Jeffery and Zur [STOC '23]. In analogy to the connection between the incidence matrix of a graph and Kirchhoff's Law and Ohm's Law in an electrical network, we rebuild the connection between the alternative incidence matrix and Alternative Kirchhoff's Law and Alternative Ohm's Law. This new framework enables generating an alternative electrical flow over the edges on graphs, which has the potential to be applied to a broader range of graph problems, benefiting both quantum and classical algorithm design.
 We first use this framework to generate quantum alternative electrical flow states and use it to find a marked vertex in one-dimensional random hierarchical graphs as defined by Balasubramanian, Li, and Harrow [arXiv '23]. In this work, they generalised the exponential quantum-classical separation of the welded tree graph by Childs, Cleve, Deotto, Farhi, Gutmann, and Spielman [STOC '03] to random hierarchical graphs. Our result partially recovers their results with an arguably simpler analysis.
 Furthermore, this framework also allows us to demonstrate an exponential quantum speedup for the pathfinding problem in a type of regular graph, which we name the welded tree circuit graph. The exponential quantum advantage is obtained by efficiently generating quantum alternative electrical flow states and then sampling from them to find an s-t path in the welded tree circuit graph. By comparison, Li [arXiv '23] constructed a non-regular graph based on welded trees and used the degree information to achieve a similar speedup.
description: minor update
Model validation and error attribution for a drifting qubit
Creators: name: Gaye, Malick A.
name: Albrecht, Dylan
name: Young, Steve
name: Albash, Tameem
name: Jacobson, N. Tobias
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Qubit performance is often reported in terms of a variety of single-value metrics, each providing a facet of the underlying noise mechanism limiting performance. However, the value of these metrics may drift over long time-scales, and reporting a single number for qubit performance fails to account for the low-frequency noise processes that give rise to this drift. In this work, we demonstrate how we can use the distribution of these values to validate or invalidate candidate noise models. We focus on the case of randomized benchmarking (RB), where typically a single error rate is reported but this error rate can drift over time when multiple passes of RB are performed. We show that using a statistical test as simple as the Kolmogorov-Smirnov statistic on the distribution of RB error rates can be used to rule out noise models, assuming the experiment is performed over a long enough time interval to capture relevant low frequency noise. With confidence in a noise model, we show how care must be exercised when performing error attribution using the distribution of drifting RB error rate.
description: 16 pages, 12 figures. v2. Updated to published version
Single-particle spectra and magnetic susceptibility in the Emery model: a dynamical mean-field perspective
Creators: name: Tseng, Yi-Ting
name: Malcolms, Mário O.
name: Menke, Henri
name: Klett, Marcel
name: Schäfer, Thomas
name: Hansmann, Philipp
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate dynamical mean-field calculations of the three-band Emery model at the one- and two-particle level for material-realistic parameters of high-$T_c$ superconductors. Our study shows that even within dynamical mean-field theory, which accounts solely for temporal fluctuations, the intrinsic multi-orbital nature of the Emery model introduces effective non-local correlations. These correlations lead to a non-Curie-like temperature dependence of the magnetic susceptibility, consistent with nuclear magnetic resonance experiments in the pseudogap regime. By analyzing the temperature dependence of the uniform static spin susceptibility obtained by single-site and cluster dynamical mean-field theory, we find indications of emerging oxygen-copper singlet fluctuations, explicitly captured by the model. Despite correctly describing the hallmark of the pseudogap at the two-particle level, such as the drop in the Knight shift of nuclear magnetic resonance, dynamical mean-field theory fails to capture the spectral properties of the pseudogap.
description: 15 pages, 7 figures
Recensione a: C. Sini, Inizio, Jaca Book, Milano 2016
Creators: name: Beretta, Paolo
Publisher: name: Università degli Studi di Milano
Year: 2016
Subjects: Sini; pensiero delle pratiche; inizio; discorsi; potere invisibile; pedagogia

description: Recensione a Inizio di Carlo Sini
description: Nóema, N. 6-2 (2015): Ricerche
O'ZBEK TILIDАGI "MEHMONDO'STLIK" KONSEPTLI MАQOLLАRNING LINGVOKULTUROLOGIK XUSUSIYАTLАRI
Creators: name: Eshаnkulovа, Shohistа
Publisher: name: Zenodo
Year: 2024

description: Ushbu mаqolаdа o’zbek tilidаgi “mehmondo’stlik” tushunchаsi birliklаrini lingvomаdаniy tаhlil qilingаn vа lingvokulturologik xususiyаtlаri keltirilgаn.
title: TweetInfo: A system to help Social Media Users spot fake news and hate speech by showing relevant Meta-information
Creators: name: Kana Tsoplefack, William
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: Hassrede
subject: Falschmeldung
subject: Social Media
subject: Twitter
subject: 004

description: Today, social media platforms have become almost a normal place in our lives, and we need to secure and give users a clear picture of the apps we are creating. Furthermore, hate speech and fake news are increasingly circulating more and more on platforms despite surveillance efforts made by platform hosts. This work is designed to spot hate speech and fake news on social media platforms using information extracted from user-generated content. Relevant information provided to users will help address the research question, and a modified version of Twitter will be developed to show the importance of this system functioning on a particular data collection and later, the findings of this system will be discussed.
A Quadratic Speedup in Finding Nash Equilibria of Quantum Zero-Sum Games
Creators: name: Vasconcelos, Francisca
name: Vlatakis-Gkaragkounis, Emmanouil-Vasileios
name: Mertikopoulos, Panayotis
name: Piliouras, Georgios
name: Jordan, Michael I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: primary 91A05, 81Q93, secondary 68Q32, 91A26, 37N40,

description: Recent developments in domains such as non-local games, quantum interactive proofs, and quantum generative adversarial networks have renewed interest in quantum game theory and, specifically, quantum zero-sum games. Central to classical game theory is the efficient algorithmic computation of Nash equilibria, which represent optimal strategies for both players. In 2008, Jain and Watrous proposed the first classical algorithm for computing equilibria in quantum zero-sum games using the Matrix Multiplicative Weight Updates (MMWU) method to achieve a convergence rate of $\mathcal{O}(d/ε^2)$ iterations to $ε$-Nash equilibria in the $4^d$-dimensional spectraplex. In this work, we propose a hierarchy of quantum optimization algorithms that generalize MMWU via an extra-gradient mechanism. Notably, within this proposed hierarchy, we introduce the Optimistic Matrix Multiplicative Weights Update (OMMWU) algorithm and establish its average-iterate convergence complexity as $\mathcal{O}(d/ε)$ iterations to $ε$-Nash equilibria. This quadratic speed-up relative to Jain and Watrous' original algorithm sets a new benchmark for computing $ε$-Nash equilibria in quantum zero-sum games.
description: 53 pages, 7 figures, QTML 2023 (Long Talk), Quantum Journal 2025
Tile Numbers of Knot Corner Mosaics
Creators: name: Aylaian, Ezra
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K10 (Primary) 05B30, 05B50 (Secondary)

description: A knot mosaic is a grid of pictorial tiles representing a tame knot or link. Recently, two groups independently introduced a new set of tiles. We call mosaics made with these new tiles corner mosaics. The (corner) tile number is the minimum number of tiles needed to represent a knot or link as a (corner) mosaic. We show that the corner tile number lies strictly between the tile number and $3$ times the tile number, resolving a question of Heap et al. We also show that the only knots and links with corner tile number $<12$ and no unlinked, unknotted components are the Hopf link $P(1,1)$, the trefoil knot $3_1$, Solomon's knot $P(1,1,1,1)$, the connect sum of two Hopf links $P(1,1) \# P(1,1)$, the cinquefoil knot $5_1$, the star of David link $P(1,1,1,1,1,1)$, the figure-eight knot $4_1$, and the three-twist knot $5_2$.
description: 14 pages. v3 includes a stronger version of Theorem 3
Supplementary document for TERAHERTZ WAVE RECTIFICATION IN A FERROELECTRIC CRYSTAL - 6147368.pdf
Creators: name: Bilyk, Vladislav
name: Grishunin, Kirill
name: Rasing, Theo
name: Kirilyuk, Andrei
name: Sergeeva, Olga
name: Sherstyuk, Natalia
name: Mishina, Elena
name: Lavrov, Sergey
name: SIGOV, ALEXANDER
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Details of the THz electic field calculation
Quantum network-entanglement measures
Creators: name: Xu, Zhen-Peng
name: de Vicente, Julio I.
name: Sun, Liang-Liang
name: Yu, Sixia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum networks are of high interest nowadays and a quantum internet has been long envisioned. Network-entanglement adapts the notion of entanglement to the network scenario and network-entangled states are considered to be a resource to overcome the limitations of a given network structure. In this work, we introduce measures of quantum network-entanglement that are well-defined within the general framework of quantum resource theories, which at the same time have a clear operational interpretation characterizing the extra resources necessary to prepare a targeted quantum state within a given network. In particular, we define the network communication cost and the network round complexity, which turn out to be intimately related to graph-theoretic parameters. We also provide methods to estimate these measures by introducing novel witnesses of network-entanglement.
description: 7+21 pages, 9 figures
title: Technical Report on the Extension of the Layered Privacy Language
Creators: name: Leicht, Jens
name: Gerl, Armin
name: Heisel, Maritta
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: Datenschutz
subject: 004

description: In this technical report, we list all changes we make in our extension of the Layered Privacy Language (LPL). The changes focus on the improvement of the LPL's compatibility with the General Data Protection Regulation (GDPR). We address drawbacks of the current version of LPL, which are concerned with the definition of legal bases for data processing; the declaration of official authority vested in the service provider; missing information regarding adequacy decisions for third country transfers; and drawbacks regarding data minimization in LPL. In addition to addressing these drawbacks, we implement a purpose hierarchy, which improves the general structure of policies written in LPL and supports partially automatically generated privacy policies. We also add fixed categories for purposes as well as data categories that improve the semantics of the language with respect to formal reasoning about LPL policies.
The Effects of Using Point Sheets and Positive Verbal Reinforcement to Promote Self-Regulation for High School Students with Emotional Disorders
Creators: name: Myrowitz, Michelle
Publisher: name: Maryland Shared Open Access Repository
Year: 2016
Subjects: subject: Education -- Research papers (Graduate).

description: The purpose of this study was to determine if students who received more positive verbal reinforcement would be able to self-regulate their own behavior using a point sheet. This involved six students from a school in Baltimore County.  This study involved use of a pre-test/post-test design to measure if students would improve their behavior, such as using appropriate language and staying in their assigned area for the first ten minutes of class if verbal reinforcement was enhanced. Due to the population, timing, and absences, there were no clear results.   Research in this area should continue in order to learn how students will develop themselves the best manner in and outside the classroom.
Anti-Gauss cubature rules with applications to Fredholm integral equations on the square
Creators: name: de Alba, Patricia Diaz
name: Fermo, Luisa
name: Rodriguez, Giuseppe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65R20, 65D30, 42C0

description: The purpose of this paper is to develop the anti-Gauss cubature rule for approximating integrals defined on the square whose integrand function may have algebraic singularities at the boundaries. An application of such a rule to the numerical solution of Fredholm integral equations of the second-kind is also explored. The stability, convergence, and conditioning of the proposed Nyström-type method are studied. The numerical solution of the resulting dense linear system is also investigated and several numerical tests are presented.
Summing the sum of digits
Creators: name: Allouche, Jean-Paul
name: Stipulanti, Manon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15, 11A63, 11B99

description: We revisit and generalize inequalities for the summatory function of the sum of digits in a given integer base. We prove that several known results can be deduced from a theorem in a 2023 paper by Mohanty, Greenbury, Sarkany, Narayanan, Dingle, Ahnert, and Louis, whose primary scope is the maximum mutational robustness in genotype-phenotype maps.
description: 10 pages; this is a revised version to appear in Communications in Mathematics
Introducing Modelling, Analysis and Control of Three-Phase Electrical Systems Using Geometric Algebra
Creators: name: Velasco, Manel
name: Zaplana, Isiah
name: Dòria-Cerezo, Arnau
name: Duarte, Josué
name: Martí, Pau
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: State-of-the-art techniques for modeling, analysis and control of three-phase electrical systems belong to the real-valued multi-input/multi-output (MIMO) domain, or to the complex-valued nonlinear single-input/single-output (SISO) domain. In order to complement both domains while simplifying complexity and offering new analysis and design perspectives, this paper introduces the application of geometric algebra (GA) principles to the modeling, analysis and control of three-phase electrical systems. The key contribution for the modeling part is the identification of the transformation that allows transferring real-valued linear MIMO systems into GA-valued linear SISO representations (with independence of having a balanced or unbalanced system). Closed-loop stability analysis in the new space is addressed by using intrinsic properties of GA. In addition, a recipe for designing stabilizing and decoupling GA-valued controllers is provided. Numerical examples illustrate key developments and experiments corroborate the main findings.
description: 10 pages, 5 figures, final version of an accepted journal paper (without the journal format)
title: COVID Angels Fighting Daily Demons? Mental Health of Healthcare Workers and Religion
Creators: name: Barili, Emilia
name: Bertoli, Paola
name: Grembi, Veronica
name: Rattini, Veronica
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: Healthcare Workers
subject: COVID‐19
subject: Mental Health
subject: Coping Mechanisms
subject: Religiosity
subject: 610
subject: 330

description: Relying on a unique survey of more than 15,000 respondents conducted from June to August 2020 in Italy, we show that priming religiosity in healthcare workers decreases the level of self‐assessed mental distress experienced during the first wave of the COVID‐19. We show that priming religiosity decreases self‐assessed mental distress by 9.5%. Consistent with the idea that religiosity serves as a coping mechanism, this effect is stronger for the more impacted categories (e.g., hospital workers) and for respondents facing more stressful situations, such as being reassigned due to the COVID‐19 emergency or working in a COVID‐19‐related specialty (e.g., emergency care), among others. Moreover, higher effects occurs also among physicians who self‐classify as religious, while this distinction does not apply for nurses.
description: CINCH working paper series, vol. 2021, no. 03
Elementary fractal geometry. 4. Automata-generated topological spaces
Creators: name: Bandt, Christoph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Metric Geometry (math.MG)
subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 28A80 (primary), 11A63, 37B10, 54B15, 68Q45

description: Finite automata were used to determine multiple addresses in number systems and to find topological properties of self-affine tiles and finite type fractals. We join these two lines of research by axiomatically defining automata which generate topological spaces. Simple examples show the potential of the concept. Spaces generated by automata are topologically self-similar. Two basic algorithms are outlined. The first one determines automata for all $k$-tuples of equivalent addresses from the automaton for double addresses. The second one constructs finite topological spaces which approximate the generated space. Finally, we discuss the realization of automata-generated spaces as self-similar sets.
description: 33 pages, 14 figures
Local Euler characteristics of $A_n$-singularities and their application to hyperbolicity
Creators: name: Bruin, Nils
name: Ilten, Nathan
name: Xu, Zhe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 14J17, 14M25, Secondary 14F10, 52B20, 11G35

description: Wahl's local Euler characteristic measures the local contributions of a singularity to the usual Euler characteristic of a sheaf. Using tools from toric geometry, we study the local Euler characteristic of sheaves of symmetric differentials for isolated surface singularities of type $A_n$. We prove an explicit formula for the local Euler characteristic of the $m$th symmetric power of the cotangent bundle; this is a quasi-polynomial in $m$ of period $n+1$. We also express the components of the local Euler characteristic as a count of lattice points in a non-convex polyhedron, again showing it is a quasi-polynomial. We apply our computations to obtain new examples of algebraic quasi-hyperbolic surfaces in $\mathbb{P}^3$ of low degree. We show that an explicit family of surfaces with many singularities constructed by Labs has no genus $0$ curves for the members of degree at least $8$ and no curves of genus $0$ or $1$ for degree at least $10$.
description: 28 pages, 7 figures
CONTRACTUAL AGREEMENTS AND RISK TRANSFER TIMING IN BUSINESS CONTRACT EXECUTION
Creators: name: Seybold Report Journal
Publisher: name: Seybold Report Journal
Year: 2024

description: Abstract

 Contract formation and risk transfer are essential stages in any civil transaction. The Civil Code of 2015 and the Commercial Law of 2005 have established a fundamental legal framework to regulate issues arising from contractual relationships, ensuring the legitimate rights and interests of the involved parties. However, to ensure appropriateness and enhance the effectiveness of application, protecting the legal rights and interests of the parties in contract formation as well as determining the point of risk transfer during contract execution, it is necessary to analyze relevant legal provisions regarding the regulation of contract formation and the determination of the risk transfer point during contract execution. This analysis aims to propose solutions for improvement and supplementation to create a comprehensive, robust, and practical legal basis for the formation and execution of business contracts.

Keywords:  contract formation, risk transfer, business contracts
Principles for Optimizing Quantum Transduction in Piezo-Optomechanical Systems
Creators: name: Schneeloch, James
name: Sheridan, Erin
name: Smith, A. Matthew
name: Tison, Christopher C.
name: Campbell, Daniel L.
name: LaHaye, Matthew D.
name: Fanto, Michael L.
name: Alsing, Paul M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-way microwave-optical quantum transduction is essential to connecting distant superconducting qubits via optical fiber, and to enable quantum networking at a large scale. In Blésin, Tian, Bhave, and Kippenberg's article, ``Quantum coherent microwave-optical transduction using high overtone bulk acoustic resonances" (Phys. Rev. A, 104, 052601 (2021)), they lay out a two-way quantum transducer converting between microwave photons and telecom-band photons by way of an intermediary GHz-band phonon mode utilizing piezoelectric and optomechanical interactions respectively (and are the first to work out the quantum piezoelectric coupling). In this work, we examine both the piezoelectric, and optomechanical interactions from first principles, and together with the evanescent coupling between optical modes, discuss what parameters matter most in optimizing this kind of quantum transducer. For its additional utility, we have also compiled a table of relevant properties of optical materials that may be used as elements in transducers.
description: 29 pages (16 pages main + 13 pages appendices), 7 figures, 4 tables