cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of a Realistic Multiorbital Band Structure on Conducting Domain Walls in Perovskite Ferroelectrics
Creators: name: Cornell, B. C.
name: Atkinson, W. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Domain wall morphologies in ferroelectrics are believed to be largely shaped by electrostatic forces. Here, we show that for conducting domain walls, the morphology also depends on the details of the charge-carrier band structure. For concreteness, we focus on transition-metal perovskites like BaTiO$_3$ and SrTiO$_3$. These have a triplet of $t_{2g}$ orbitals attached to the Ti atoms that form the conduction bands when electron doped. We solve a set of coupled equations -- Landau-Ginzburg-Devonshire (LGD) equations for the polarization, tight-binding Schrödinger equations for the electron bands, and Gauss' law for the electric potential -- to obtain polarization and electron density profiles as a function of electron density. We find that at low electron densities, the electron gas is pinned to the surfaces of the ferroelectric by a Kittel-like domain structure. As the electron density increases, the domain wall evolves smoothly through a zigzag head-to-head structure, eventually becoming a flat head-to-head domain wall at high density. We find that the Kittel-like morphology is protected by orbital asymmetry at low electron densities, while at large electron densities the high density of states of the multiorbital band structure provides effective screening of depolarizing fields and flattens the domain wall relative to single-orbital models. Finally, we show that in the zigzag phase, the electron gas develops tails that extend away from the domain wall, in contrast to naïve expectations.
description: 17 pages, 13 figures
Risk Evaluation - Marine Transport of Liquified Natural Gas (LNG)
Creators: name: Silvestro, F.B.
name: Sowyrda, Alexander
name: Silvestro, F.B.
name: Sowyrda, Alexander
Publisher: name: Unknown
Year: 1972
Subjects: Public Economics

description: Presented at the 13th Transportation Research Forum meeting, Nov. 8-10, 1972, Denver, CO
Isospectral metrics on weighted projective spaces
Creators: name: Weilandt, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J53, 58J50 (Primary) 53C20. 57R18 (Secondary)

description: We construct the first examples of families of bad Riemannian orbifolds which are isospectral with respect to the Laplacian but not isometric. In our case these are particular fixed weighted projective spaces equipped with isospectral metrics obtained by a generalization of Schüth's version of the torus method.
description: 29 pages, no figures; v3 with more detailed proofs in Section 3.1 and one corrected proof in Section 3.2
Designing a proof-of-concept for the implementation of the Presentation API 3.0 and Change Discovery API 1.0 within the DaSCH Service Platform (DSP)
Creators: name: Raemy, Julien A.
Publisher: name: Zenodo
Year: 2022
Subjects: IIIF
API
Digital Humanities
RDF
ActivityStreams

description: The Swiss National Data & Service Center for the Humanities (DaSCH), a IIIF-C full member since 2017 has implemented the Simple Image Presentation Interface (SIPI), a IIIF Image API 3.0 Server that DaSCH maintained with the help of the Digital Humanities Lab of the University of Basel, within the DaSCH Service Platform (DSP), a software framework used for storing, sharing, and working with primary sources and data in the humanities.

 DaSCH is in the process of designing a proof-of-concept for the deployment of the IIIF Presentation API 3.0 and the IIIF Change Discovery API 1.0, on the basis of the existing resources and projects hosted on DSP. For the Presentation API, templates will be first created manually with the help of the cookbook recipes. Then, scripts enabling the semi-automation for generating IIIF resources will be designed. As for the Change Discovery, DaSCH already provides an Event log of created resources. Thus an assessment on how the ActivityStreams endpoint could be built on top of it will be carried out.

 The lightning talk will explore the process and challenges involved in deploying these IIIF APIs and how they could be implemented within DSP to allow users to further contextualise cultural heritage resources on and off the platform as well as enabling improved aggregation thereof.
Bi-Event Subtraction Technique at Hadron Colliders
Creators: name: Dutta, Bhaskar
name: Kamon, Teruki
name: Kolev, Nikolay
name: Krislock, Abram
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose the Bi-Event Subtraction Technique (BEST) as a method of modeling and subtracting large portions of the combinatoric background during reconstruction of particle decay chains at hadron colliders. The combinatoric background arises when it is impossible to know experimentally which observed particles come from the decay chain of interest. The background shape can be modeled by combining observed particles from different collision events and be subtracted away, greatly reducing the overall background. This idea has been demonstrated in various experiments in the past. We generalize it by showing how to apply BEST multiple times in a row to fully reconstruct a cascade decay. We show the power of BEST with two simulated examples of its application towards reconstruction of the top quark and a supersymmetric decay chain at the Large Hadron Collider.
description: 4 pages, 4 figures
EmoTwiCS: A Corpus for Modelling Emotion Trajectories in Dutch Customer Service Dialogues on Twitter
Creators: name: Labat, Sofie
name: Demeester, Thomas
name: Hoste, Véronique
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Due to the rise of user-generated content, social media is increasingly adopted as a channel to deliver customer service. Given the public character of these online platforms, the automatic detection of emotions forms an important application in monitoring customer satisfaction and preventing negative word-of-mouth. This paper introduces EmoTwiCS, a corpus of 9,489 Dutch customer service dialogues on Twitter that are annotated for emotion trajectories. In our business-oriented corpus, we view emotions as dynamic attributes of the customer that can change at each utterance of the conversation. The term `emotion trajectory' refers therefore not only to the fine-grained emotions experienced by customers (annotated with 28 labels and valence-arousal-dominance scores), but also to the event happening prior to the conversation and the responses made by the human operator (both annotated with 8 categories). Inter-annotator agreement (IAA) scores on the resulting dataset are substantial and comparable with related research, underscoring its high quality. Given the interplay between the different layers of annotated information, we perform several in-depth analyses to investigate (i) static emotions in isolated tweets, (ii) dynamic emotions and their shifts in trajectory, and (iii) the role of causes and response strategies in emotion trajectories. We conclude by listing the advantages and limitations of our dataset, after which we give some suggestions on the different types of predictive modelling tasks and open research questions to which EmoTwiCS can be applied. The dataset is available upon request and will be made publicly available upon acceptance of the paper.
description: Preprint to Language Resources and Evaluation Journal
H parity and the stable Higgs boson in the SO(5) x U(1) gauge-Higgs unification
Creators: name: Hosotani, Yutaka
name: Tanaka, Minoru
name: Uekusa, Nobuhiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the SO(5) x U(1) gauge-Higgs unification model in the Randall-Sundrum warped space there results the conservation of the H parity. The H parity is assigned to all 4D fields including excited modes in Kaluza-Klein towers. The neutral Higgs boson is the lightest particle of odd H parity, consequently becoming absolutely stable. Its mass is found to be 70 \sim 135 GeV for the warp factor z_L = 10^5 \sim 10^{15}.
description: 24 pages, 6 figures. KK expansion of A_z was corrected
Additional file 1 of Evaluation of the Australian first few X household transmission project for COVID-19
Creators: name: Marcato, Adrian J.
name: Smith, Miranda Z.
name: Fielding, James E.
name: Massey, Peter D.
name: McVernon, Jodie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
Creators: name: Balantekin, A. Baha
name: Fuller, George M.
name: Ray, Anupam
name: Suliga, Anna M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The neutrinos in the diffuse supernova neutrino background (DSNB) travel over cosmological distances and this provides them with an excellent opportunity to interact with dark relics. We show that a cosmologically-significant relic population of keV-mass sterile neutrinos with strong self-interactions could imprint their presence in the DSNB. The signatures of the self-interactions would be ``dips" in the otherwise smooth DSNB spectrum. Upcoming large-scale neutrino detectors, for example Hyper-Kamiokande, have a good chance of detecting the DSNB and these dips. If no dips are detected, this method serves as an independent constraint on the sterile neutrino self-interaction strength and mixing with active neutrinos. We show that relic sterile neutrino parameters that evade X-ray and structure bounds may nevertheless be testable by future detectors like TRISTAN, but may also produce dips in the DSNB which could be detectable. Such a detection would suggest the existence of a cosmologically-significant, strongly self-interacting sterile neutrino background, likely embedded in a richer dark sector.
description: 10 pages, 2 figures. Clarifying changes, matches version published in Phys. Rev. D
Beyond the bulging binder : family-centered design of an information management system for caregivers of children living with health complexity
Creators: name: Sepehri, Katayoun
Publisher: name: University of British Columbia
Year: 2022

description: Children Living with Health Complexity (CLHC) require continuity of health and community care to improve their quality of life and decrease family care burden. Due to medical complexity and numerous chronic conditions, these children rely heavily on multiple care providers. However, a fragmented health system and the communication challenges between stakeholders poses many obstacles for their caregivers, and the result is non-optimal care in both hospital and community. This leads to an immense burden on families who take on dual roles and become responsible for care coordination. Parent caregivers must continually manage and share masses of paper documents and repeat their child’s story for different stakeholders. A digital information management and care coordination solution to support these caregivers is long overdue. Our goal was to engage with parent caregivers of CLHC through the user-centered design process to understand their needs in a digital solution. Twelve caregivers participated in three rounds of user studies which were followed by design phases. In the first phase of the study, we aimed to understand the caregiver challenges, pain-points and strategies for dealing with masses of paper and electronic data. By utilizing thematic analysis, we found a set of caregiver challenges which closely aligned with previous research: access to health records, navigating the care system, organizing and managing information, finding resources, repeating their story, and managing finances. We mapped these challenges to the caregiver strategies and devised a set of design principles to address these challenges. We also collected data on caregivers’ feature preferences in a digital solution. Our emergent design principles are: providing a holistic view of patient care, allowing customizability and flexibility, personalizing and humanizing, facilitating communication and collaboration with care providers, avoiding jargon, capturing health history and providing insight, sharing and accessing confidentially, and integrating information. Finally, we developed an extensive prototype blueprint through an iterative process of feedback and design to serve as an example for implementing these design principles in a caregiver-centered interface. The design principles and the prototype are intended to be a stepping stone for developing the content and features of a caregiver-centered information management system.
Dark Matter Results from 100 Live Days of XENON100 Data
Creators: name: XENON100 Collaboration
name: Aprile, E.
name: Arisaka, K.
name: Arneodo, F.
name: Askin, A.
name: Baudis, L.
name: Behrens, A.
name: Bokeloh, K.
name: Brown, E.
name: Bruch, T.
name: Bruno, G.
name: Cardoso, J. M. R.
name: Chen, W. -T.
name: Choi, B.
name: Cline, D.
name: Duchovni, E.
name: Fattori, S.
name: Ferella, A. D.
name: Gao, F.
name: Giboni, K. -L.
name: Gross, E.
name: Kish, A.
name: Lam, C. W.
name: Lamblin, J.
name: Lang, R. F.
name: Levy, C.
name: Lim, K. E.
name: Lin, Q.
name: Lindemann, S.
name: Lindner, M.
name: Lopes, J. A. M.
name: Lung, K.
name: Undagoitia, T. Marrodan
name: Mei, Y.
name: Fernandez, A. J. Melgarejo
name: Ni, K.
name: Oberlack, U.
name: Orrigo, S. E. A.
name: Pantic, E.
name: Persiani, R.
name: Plante, G.
name: Ribeiro, A. C. C.
name: Santorelli, R.
name: Santos, J. M. F. dos
name: Sartorelli, G.
name: Schumann, M.
name: Selvi, M.
name: Shagin, P.
name: Simgen, H.
name: Teymourian, A.
name: Thers, D.
name: Vitells, O.
name: Wang, H.
name: Weber, M.
name: Weinheimer, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present results from the direct search for dark matter with the XENON100 detector, installed underground at the Laboratori Nazionali del Gran Sasso of INFN, Italy. XENON100 is a two-phase time projection chamber with a 62 kg liquid xenon target. Interaction vertex reconstruction in three dimensions with millimeter precision allows to select only the innermost 48 kg as ultra-low background fiducial target. In 100.9 live days of data, acquired between January and June 2010, no evidence for dark matter is found. Three candidate events were observed in a pre-defined signal region with an expected background of 1.8 +/- 0.6 events. This leads to the most stringent limit on dark matter interactions today, excluding spin-independent elastic WIMP-nucleon scattering cross-sections above 7.0x10^-45 cm^2 for a WIMP mass of 50 GeV/c^2 at 90% confidence level.
description: 5 pages, 5 figures; matches accepted version
Designing a proof-of-concept for the implementation of the Presentation API 3.0 and Change Discovery API 1.0 within the DaSCH Service Platform (DSP)
Creators: name: Raemy, Julien A.
Publisher: name: Zenodo
Year: 2022
Subjects: IIIF
API
Digital Humanities
RDF
ActivityStreams

description: The Swiss National Data & Service Center for the Humanities (DaSCH), a IIIF-C full member since 2017 has implemented the Simple Image Presentation Interface (SIPI), a IIIF Image API 3.0 Server that DaSCH maintained with the help of the Digital Humanities Lab of the University of Basel, within the DaSCH Service Platform (DSP), a software framework used for storing, sharing, and working with primary sources and data in the humanities.

 DaSCH is in the process of designing a proof-of-concept for the deployment of the IIIF Presentation API 3.0 and the IIIF Change Discovery API 1.0, on the basis of the existing resources and projects hosted on DSP. For the Presentation API, templates will be first created manually with the help of the cookbook recipes. Then, scripts enabling the semi-automation for generating IIIF resources will be designed. As for the Change Discovery, DaSCH already provides an Event log of created resources. Thus an assessment on how the ActivityStreams endpoint could be built on top of it will be carried out.

 The lightning talk will explore the process and challenges involved in deploying these IIIF APIs and how they could be implemented within DSP to allow users to further contextualise cultural heritage resources on and off the platform as well as enabling improved aggregation thereof. Recording of the lightning talk: https://youtu.be/5ZzgOvBpKL4?t=5544
Additional file 2 of Evaluation of the Australian first few X household transmission project for COVID-19
Creators: name: Marcato, Adrian J.
name: Smith, Miranda Z.
name: Fielding, James E.
name: Massey, Peter D.
name: McVernon, Jodie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2.
Methoden und Werkzeuge zur Verbesserung des Zugriffs auf mathematisches Wissen in Digitalen Bibliotheken für Such-, Empfehlungs- und Assistenzsysteme
Creators: name: Gipp, Bela
Publisher: name: figshare
Year: 2023
Subjects: Information retrieval and web search
Information extraction and fusion
Data mining and knowledge discovery
Recommender systems
Query processing and optimisation
Applications in physical sciences
Knowledge representation and reasoning
Natural language processing

description: Proposal for the DFG-funded research project 350192710: Methods and Tools to Advance the Retrieval of Mathematical Knowledge from Digital Libraries for Search-, Recommendation- and Assistance-Systems.
 Project website: https://gipplab.org/projects/mathir/ Final report: https://doi.org/10.5281/zenodo.7924634
 Abstract: The goal of our project is to investigate fundamental methods and tools for making mathematical knowledge accessible to information retrieval tools. Achieving this goal requires methods to reliably extract mathematical knowledge from documents. In the domain of natural language processing (NLP), a number of well-established, general-purpose text processing methods and tools exist that are applied to a text to enable domain-specific extraction tasks. Similar to state-of-the-art text processing tools, such as the Stanford NLP toolkit, our research will determine how similar tools for processing mathematical language can be realized. Our approach is to expand upon the concept of Mathematical Language Processing (MLP), a concept for which we have already demonstrated its feasibility when we presented it at the ACM SIGIR 2016. In the context of this project, we will expand upon our preliminary research to make the approach more effective and applicable for real-world mathematical information retrieval applications. Specifically, the project has the following objectives: Identify mathematical formulae and expressions in documents, and reliably differentiate them from similar or neighboring structures. Perform type detection and tokenization of mathematical expressions. Extract the corresponding mathematical concepts from the tokenized mathematical formulae and expressions. Our goal is to enable other scientists to use our methods and tools for mathematical language processing to tackle their own novel problems. We hope that MLP will continue to improve in this process, as was once the case for early NLP approaches. A wide variety of applications would benefit from advancements in mathematical information retrieval. In the STEM disciplines, improvements could be made to academic literature search, literature recommendation, and even plagiarism prevention. Additionally, expert search or applications in pure mathematics, such as theorem search or definition lookup, would significantly benefit from our developments. Applications beyond STEM fields include the improvement of tutoring assistance tools, as well as patent search and enterprise search, which could become more valuable to companies if they integrate math-aware information retrieval methods.
Effects of oxygen on the optical properties of phenyl-based scintillators during irradiation and recovery
Creators: name: Papageorgakis, C.
name: Aamir, M. Y.
name: Belloni, A.
name: Edberg, T. K.
name: Eno, S. C.
name: Kronheim, B.
name: Palmer, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Plastic scintillators are a versatile and inexpensive option for particle detection, which is why the largest particle physics experiments, CMS and ATLAS, use them extensively in their calorimeters. One of their challenging aspects, however, is their relatively low radiation hardness, which might be inadequate for very high luminosity future projects like the FCC-hh. In this study, results on the effects of ionizing radiation on the optical properties of plastic scintillator samples are presented. The samples are made from two different matrix materials, polystyrene and polyvinyltoluene, and have been irradiated at dose rates ranging from $2.2\,$Gy/h up to $3.4\,$kGy/h at room temperature. An internal boundary that separates two regions of different indices of refraction is visible in the samples depending on the dose rate, and it is compatible with the expected oxygen penetration depth during irradiation. The dose rate dependence of the oxygen penetration depth for the two matrix materials suggests that the oxygen penetration coefficient differs for PS and PVT. The values of the refractive index for the internal regions are elevated compared to those of the outer regions, which are compatible with the indices of unirradiated samples.
description: Replaced with published version. Added journal DOI. 30 pages, 15 figures. Published in Nuclear Instruments and Methods in Physics Research Section A
Lattice Theory of Pseudospin Ferromagnetism in Bilayer Graphene: Competing Orders and Interaction Induced Quantum Hall States
Creators: name: Jung, Jeil
name: Zhang, Fan
name: MacDonald, Allan H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In mean-field-theory bilayer graphene's massive Dirac fermion model has a family of broken inversion symmetry ground states with charge gaps and flavor dependent spontaneous inter layer charge transfers. We use a lattice Hartree-Fock model to explore some of the physics which controls whether or not this type of broken symmetry state, which can be viewed as a pseudospin ferromagnet, occurs in nature. We find that inversion symmetry is still broken in the lattice model and estimate that transferred areal densities are $\sim 10^{-5}$ electrons per carbon atom, that the associated energy gaps are $\sim 10^{-2} {\rm eV}$, that the ordering condensation energies are $\sim 10^{-7} eV$ per carbon atom, and that the energy differences between competing orders at the neutrality point are $\sim 10^{-9} eV$ per carbon atom. We explore the quantum phase transitions induced by external magnetic fields and by externally controlled electric potential differences between the layers. We find, in particular, that in an external magnetic field coupling to spontaneous orbital moments favors broken time-reversal-symmetry states that have spontaneous quantized anomalous Hall effects. Our theory predicts a non monotonic behavior of the band gap at neutrality as a function of interlayer potential difference in qualitative agreement with recent experiments.
description: 12 pages, 3 tables, 7 figures
A comparison of skeletal, dental changes in Class II patients treated with Invisalign® with Mandibular Advancement and Herbst appliance
Creators: name: Hosseini, Hamid Reza
Publisher: name: University of British Columbia
Year: 2022

description: Objectives: Align Technology Inc introduced the Invisalign with Mandibular Advancement (IMA) features in 2017, which has been reported to function similarly to a removable functional appliance for growth modification in Class II patients. The IMA appliance utilizes precision wings on the aligners to posture the mandible forward for Class II correction. There is a lack of literature comparing the skeletal and dental changes, as well as their relative contribution to the overall treatment effect between fixed functional appliances and this novel removable appliance. The objective of this study is to characterize the skeletal and dental changes of growing patients with Class II malocclusions treated with the novel Invisalign Mandibular Advancement (IMA) appliance and also the changes caused by a more traditional method of Class II treatment, the Herbst appliance. Methods: Consecutively treated patients with the Herbst appliance and with the IMA appliance from two orthodontic practices were compared using lateral cephalometrics taken at three different time periods: T1: Before treatment, T2: Immediately after the functional advancement stage with the MA or Herbst appliance, and T3: After completion of comprehensive treatment. The skeletal and dental changes across the three time periods (T1, T2, T3) were analyzed for each treatment group separately using paired t-test. A two-sided p-value of less than .05 was considered statistically significant. Results: After the advancement phase, significant forward movement of the mandible, lower molars, lower incisors, and restraining of the maxillary molars were achieved with either the removable IMA or the fixed Herbst appliance; however, these changes were greater for the Herbst appliance. By the end of comprehensive treatment, these changes persisted except for a slight forward movement of the upper molars. Invisalign MA had less proclination of the lower incisors when compared to the fixed Herbst appliance. Conclusion: The Invisalign MA appliance was effective at treating Class II malocclusions by a combination of both dental and skeletal treatment effects, consisting of repositioning the mandible and mandibular teeth forward and by restricting the forward movement of the maxilla and maxillary molars.
Additional file 3 of Evaluation of the Australian first few X household transmission project for COVID-19
Creators: name: Marcato, Adrian J.
name: Smith, Miranda Z.
name: Fielding, James E.
name: Massey, Peter D.
name: McVernon, Jodie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3.
Numerical Derivative-based Flexible Integration Algorithm for Power Electronic Systems Simulation Considering Nonlinear Components
Creators: name: Xu, Han
name: Shi, Bochen
name: Yu, Zhujun
name: Zheng, Jialin
name: Zhao, Zhengming
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Simulation is an efficient tool in the design and control of power electronic systems. However, quick and accurate simulation of them is still challenging, especially when the system contains a large number of switches and state variables. Conventional general-purpose integration algorithms assume nonlinearity within systems but face inefficiency in handling the piecewise characteristics of power electronic switches. While some specialized algorithms can adapt to the piecewise characteristics, most of these methods require systems to be piecewise linear. In this article, a numerical derivative-based flexible integration algorithm is proposed. This algorithm can adapt to the piecewise characteristic caused by switches and have no difficulty when nonlinear non-switching components are present in the circuit. This algorithm consists of a recursive numerical scheme that obtains high-order time derivatives of nonlinear components and a decoupling strategy that further increases computational efficiency. The proposed method is applied to solve a motor derive system and a large-scale power conversion system (PCS) to verify its accuracy and efficiency by comparing experimental waveforms and simulated results given by commercial software. Our proposed method demonstrates several-fold acceleration compared to multiple commonly used algorithms in Simulink.
description: 10 pages, 8 figures
The quantum dynamic capacity formula of a quantum channel
Creators: name: Wilde, Mark M.
name: Hsieh, Min-Hsiu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The dynamic capacity theorem characterizes the reliable communication rates of a quantum channel when combined with the noiseless resources of classical communication, quantum communication, and entanglement. In prior work, we proved the converse part of this theorem by making contact with many previous results in the quantum Shannon theory literature. In this work, we prove the theorem with an "ab initio" approach, using only the most basic tools in the quantum information theorist's toolkit: the Alicki-Fannes' inequality, the chain rule for quantum mutual information, elementary properties of quantum entropy, and the quantum data processing inequality. The result is a simplified proof of the theorem that should be more accessible to those unfamiliar with the quantum Shannon theory literature. We also demonstrate that the "quantum dynamic capacity formula" characterizes the Pareto optimal trade-off surface for the full dynamic capacity region. Additivity of this formula simplifies the computation of the trade-off surface, and we prove that its additivity holds for the quantum Hadamard channels and the quantum erasure channel. We then determine exact expressions for and plot the dynamic capacity region of the quantum dephasing channel, an example from the Hadamard class, and the quantum erasure channel.
description: 24 pages, 3 figures; v2 has improved structure and minor corrections; v3 has correction regarding the optimization
Analytic continuation of Taylor series and the two-point boundary value problems of some nonlinear ordinary differential equations
Creators: name: Abbasbandy, S.
name: Bervillier, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compare and discuss the respective efficiency of three methods (with two variants for each of them), based respectively on Taylor (Maclaurin) series, Padé approximants and conformal mappings, for solving quasi-analytically a two-point boundary value problem of a nonlinear ordinary differential equation (ODE). Six configurations of ODE and boundary conditions are successively considered according to the increasing difficulties that they present. After having indicated that the Taylor series method almost always requires the recourse to analytical continuation procedures to be efficient, we use the complementarity of the two remaining methods (Padé and conformal mapping) to illustrate their respective advantages and limitations. We emphasize the importance of the existence of solutions with movable singularities for the efficiency of the methods, particularly for the so-called Padé-Hankel method. (We show that this latter method is equivalent to pushing a movable pole to infinity.) For each configuration, we determine the singularity distribution (in the complex plane of the independent variable) of the solution sought and show how this distribution controls the efficiency of the two methods. In general the method based on Padé approximants is easy to use and robust but may be awkward in some circumstances whereas the conformal mapping method is a very fine method which should be used when high accuracy is required.
description: Final version
Two-loop splitting in double parton distributions
Creators: name: Diehl, Markus
name: Gaunt, Jonathan R.
name: Plößl, Peter
name: Schäfer, Andreas
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019
Subjects: parton: distribution function
parton: multiple scattering
parton: splitting
sum rule: momentum
higher-order: 1
splitting function
quantum chromodynamics: perturbation theory
kinematics

description: Double parton distributions (DPDs) receive a short-distance contribution from a single parton splitting to yield the two observed partons. We investigate this mechanism at next-to-leading order (NLO) in perturbation theory. Technically, we compute the two-loop matching of both the position and momentum space DPDs onto ordinary PDFs. This also yields the 1 -> 2 splitting functions appearing in the evolution of momentum-space DPDs at NLO. We give results for the unpolarised, colour-singlet DPDs in all partonic channels. These quantities are required for calculations of double parton scattering at full NLO. We discuss various kinematic limits of our results, and we verify that the 1 -> 2 splitting functions are consistent with the number and momentum sum rules for DPDs.
UT INSC 590: Group 2 Presentation for Research Grant Proposal
Creators: name: Thurman, Alexander
name: Gonzalez, Sarah
name: Holmes, Timothy
name: Stoss, Yasmin
Publisher: name: Zenodo
Year: 2019

description: Student presentation from INSC 590: Data Management

for Research Grant Proposal assignment

Contributors: Alexander Thurman – PI  0000-0001-9304-929X

Sarah Gonzalez – Co-PI  0000-0001-8540-0190

Timothy Holmes – Data Manager  0000-0002-7919-0219

Yasmin Stoss – Metadata Specialist  0000-0003-3205-7872
Additional file 4 of Evaluation of the Australian first few X household transmission project for COVID-19
Creators: name: Marcato, Adrian J.
name: Smith, Miranda Z.
name: Fielding, James E.
name: Massey, Peter D.
name: McVernon, Jodie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 4.
Quantum entanglement between a nonlinear nanomechanical resonator and a microwave field
Creators: name: Meaney, Charles P.
name: McKenzie, Ross H.
name: Milburn, G. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a theoretical model for a nonlinear nanomechanical resonator coupled to a superconducting microwave resonator. The nanomechanical resonator is driven parametrically at twice its resonance frequency, while the superconducting microwave resonator is driven with two tones that differ in frequency by an amount equal to the parametric driving frequency. We show that the semi-classical approximation of this system has an interesting fixed point bifurcation structure. In the semi-classical dynamics a transition from stable fixed points to limit cycles is observed as one moves from positive to negative detuning. We show that signatures of this bifurcation structure are also present in the full dissipative quantum system and further show that it leads to mixed state entanglement between the nanomechanical resonator and the microwave cavity in the dissipative quantum system that is a maximum close to the semi-classical bifurcation. Quantum signatures of the semi-classical limit-cycles are presented.
description: 36 pages, 18 figures
The First Massive Black Hole Seeds and Their Hosts
Creators: name: Bellovary, Jillian
name: Volonteri, Marta
name: Governato, Fabio
name: Shen, Sijing
name: Quinn, Thomas
name: Wadsley, James
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the formation of the first massive black holes in high redshift galaxies, with the goal of providing insights to which galaxies do or do not host massive black holes. We adopt a novel approach to forming seed black holes in galaxy halos in cosmological SPH+N-body simulations. The formation of massive black hole seeds is dictated directly by the local gas density, temperature, and metallicity, and motivated by physical models of massive black hole formation. We explore seed black hole populations as a function of halo mass and redshift, and examine how varying the efficiency of massive black hole seed formation affects the relationship between black holes and their hosts. Seed black holes tend to form in halos with mass between 10^7 and 10^9 Msun, and the formation rate is suppressed around z = 5 due to the diffusion of metals throughout the intergalactic medium. We find that the time of massive black hole formation and the occupation fraction of black holes are a function of the host halo mass. By z = 5, halos with mass M_halo > 3 x 10^9 Msun host massive black holes regardless of the efficiency of seed formation, while the occupation fraction for smaller halos increases with black hole formation efficiency. Our simulations explain why massive black holes are found in some bulgeless and dwarf galaxies, but we also predict that their occurrence becomes rarer and rarer in low-mass systems.
description: Replaced with ApJ accepted version. 7 pages, 3 figures
Enhancing Genetic Improvement Mutations Using Large Language Models
Creators: name: Brownlee, Alexander E. I.
name: Callan, James
name: Even-Mendoza, Karine
name: Geiger, Alina
name: Hanna, Carol
name: Petke, Justyna
name: Sarro, Federica
name: Sobania, Dominik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Large language models (LLMs) have been successfully applied to software engineering tasks, including program repair. However, their application in search-based techniques such as Genetic Improvement (GI) is still largely unexplored. In this paper, we evaluate the use of LLMs as mutation operators for GI to improve the search process. We expand the Gin Java GI toolkit to call OpenAI's API to generate edits for the JCodec tool. We randomly sample the space of edits using 5 different edit types. We find that the number of patches passing unit tests is up to 75% higher with LLM-based edits than with standard Insert edits. Further, we observe that the patches found with LLMs are generally less diverse compared to standard edits. We ran GI with local search to find runtime improvements. Although many improving patches are found by LLM-enhanced GI, the best improving patch was found by standard GI.
description: Accepted for publication at the Symposium on Search-Based Software Engineering (SSBSE) 2023
Additional file 5 of Evaluation of the Australian first few X household transmission project for COVID-19
Creators: name: Marcato, Adrian J.
name: Smith, Miranda Z.
name: Fielding, James E.
name: Massey, Peter D.
name: McVernon, Jodie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 5.
Comprehensive characterization of β-lactamase resistome
Creators: name: Gholipour, Sevan
Publisher: name: University of British Columbia
Year: 2022

description: β-lactamases are enzymes capable of conferring pathogens with resistance against β-lactam antibiotics. They are widely disseminated in clinical pathogens via horizontal gene transfer, which raises major concerns in clinics. Interestingly, β-lactamases have evolved multiple times from distinct evolutionary origins, resulting in five diverse classes of enzymes. However, our current understanding of β-lactamase is almost entirely focused on clinically isolated enzymes, which may only be a small fraction of an even greater plethora of β-lactamase diversity in the environmental biosphere. This thesis aims to comprehensively study the distribution of β-lactamases, including the ones spread in environmental samples. The analysis of β-lactamases in public databases revealed the evolutionary origins of each class of β-lactamase by highlighting multiple convergent evolutionary events within the penicillin-binding protein-like and metallo-β-lactamase superfamilies. The phylogeny analyses of the superfamilies revealed new sequence clusters related to β-lactamases, providing a novel insight into the evolutionary ancestors of the enzyme superfamily. The subsequent bioinformatic analysis of metagenomic samples unveiled a vast pool of environmental enzymes that belong to the metallo-β-lactamase and serine β-lactamase families. The analysis of β-lactamases in the various ecosystems showed a larger fraction of resistant genes in wastewater samples, and yet, β-lactamases are widely spread in diverse environments. Overall, the results presented in this thesis contribute to our understanding of the β-lactamase family and will help to improve surveillance programs in the future.
On the duality theorem on an analytic variety
Creators: name: Lärkäng, Richard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: The duality theorem for Coleff-Herrera products on a complex manifold says that if $f = (f_1,\dots,f_p)$ defines a complete intersection, then the annihilator of the Coleff-Herrera product $μ^f$ equals (locally) the ideal generated by $f$. This does not hold unrestrictedly on an analytic variety $Z$. We give necessary, and in many cases sufficient conditions for when the duality theorem holds. These conditions are related to how the zero set of $f$ intersects certain singularity subvarieties of the sheaf $\mathcal{O}_Z$.
description: 21 pages, v2: Incorporate changes from the review process
Disentangling transport mechanisms in a correlated oxide by photoinduced charge injection
Creators: name: Navarro, Henry
name: Das, Sarmistha
name: Torres, Felipe
name: Basak, Rourav
name: Qiu, Erbin
name: Vargas, Nicolas M.
name: Lapa, Pavel
name: Schuller, Ivan K.
name: Frano, Alex
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a novel heterostructured approach to disentangle the mechanism of electrical transport of the strongly correlated PrNiO3, by placing the nickelate under the photoconductor CdS. This enables the injection of carriers into PrNiO3 in a controlled way, which can be used to interrogate its intrinsic transport mechanism. We find a non-volatile resistance decrease when illuminating the system at temperatures below the PrNiO3 metal-insulator transition. The photoinduced change becomes more volatile as the temperature increases. These data help understand the intrinsic transport properties of the nickelate-CdS bilayer. Together with data from a bare PrNiO3 film, we find that the transport mechanism includes a combination of mechanisms including both thermal activation and variable range hopping. At low temperatures without photoinduced carriers the transport is governed by hopping, while at higher temperatures and intense illumination the activation mechanism becomes relevant. This work shows a new way to optically control the low-temperature resistance of PrNiO3.
Slave-boson Keldysh field theory for the Kondo effect in quantum dots
Creators: name: Smirnov, Sergey
name: Grifoni, Milena
Publisher: name: arXiv
Year: 2011
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 {\it nonequilibrium nonperturbative} field theory for the Kondo effect in strongly interacting quantum dots at finite temperatures. Unifying the slave-boson representation with the Keldysh field integral an effective Keldysh action is derived and explored in the vicinity of the zero slave-bosonic field configuration. The theory properly reflects the essential features of the Kondo physics and at the same time significantly simplifies a field-theoretic treatment of the phenomenon, avoiding complicated saddle point analysis or 1/N expansions, used so far. Importantly, our theory admits a {\it closed analytical} solution which explains the mechanism of the Kondo effect in terms of an interplay between the real and imaginary parts of the slave-bosonic self-energy. It thus provides a convenient nonperturbative building block, playing the role of a "free propagator", for more advanced theories. We finally demonstrate that already this simplest possible field theory is able to correctly reproduce experimental data on the Kondo peak observed in the differential conductance, correctly predicts the Kondo temperature and, within its applicability range, has the same universal temperature dependence of the conductance as the one obtained in numerical renormalization group calculations.
description: published version
MPEC 2023-J99 : DAILY ORBIT UPDATE (2023 May 11)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Coherent and semicoherent $α$/$β$ interfaces in titanium: structure, thermodynamics, migration
Creators: name: Wang, Siqi
name: Wen, Tongqi
name: Han, Jian
name: Srolovitz, David J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The $α/β$ interface is central to the microstructure and mechanical properties of titanium alloys. We investigate the structure, thermodynamics and migration of the coherent and semicoherent Ti $α/β$ interfaces as a function of temperature and misfit strain via molecular dynamics (MD) simulations, thermodynamic integration and an accurate, DFT-trained Deep Potential. The structure of an equilibrium semicoherent interface consists of an array of steps, an array of misfit dislocations, and coherent terraces. Analysis determines the dislocation and step (disconnection) array structure and habit plane. The MD simulations show the detailed interface morphology dictated by intersecting disconnection arrays. The steps are shown to facilitate $α/β$ interface migration, while the misfit dislocations lead to interface drag; the drag mechanism is different depending on the direction of interface migration. These results are used to predict the nature of $α$ phase nucleation on cooling through the $α$-$β$ phase transition.