cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analytically driven software/hardware co-design for accelerating tensor workloads
Creators: name: Ng, Christopher Cheuk Wing
Publisher: name: University of British Columbia
Year: 2022

description: The emergence of deep learning has launched many works in deep learning accelerators. To fully realize the potential of these accelerators, dataflow mapping must be optimized in order to reduce the number of memory accesses. Dataflow mapping is crucial to improving the performance of deep learning workloads, but mapping optimization is a difficult problem due to the enormous, non-convex, and non-differentiable search space. As workloads become larger and larger, the problem becomes harder while the importance of dataflow increases. To tackle the problem, prior work reduces the search space using empirically driven, or arbitrary heuristics. However, these heuristics are either too simple and the optimization process is still too slow, or are too aggressive and remove optimal mappings. Prior work also explored using black-box optimizers, but reformulating the problem into the input of these black-box optimizers is not always feasible and scalable, leading to sub-optimal or even invalid solutions. In this thesis, we tackle the problem by first formally analyzing how the different aspects of mapping (tiling, ordering, unrolling) algebraically affect memory reuse and performance in order to identify sub-optimal spaces. Next, we introduce new state-space representations and traversal methods to enable the pruning of these spaces, which dramatically reduces the search space without rejecting the best solutions. Finally, we extend these analyses and techniques to tackle problems closely related to mapping optimization, such as memory configuration optimization. Sunstone, our proof-of-concept implementation, improves the optimization time for some of the complex tensor operations by up to 10x compared to prior work, and can yield mappings with up to 1.5-2.5x lower EDP.
title: Systematic identification of disturbance factors on electric characteristics of mechanical gearboxes
Creators: name: Becker-Dombrowsky, Florian Michael
name: Hausmann, Maximilian
name: Welzbacher, Peter
name: Harder, André
name: Kirchner, Eckhard
Publisher: name: Springer
Year: 2023

description: Failures of machine elements can cause critical machine breakdowns, e.g. bearing damage accounts for almost 20% of all machine failures. Hence, monitoring machine elements is of particular importance for condition monitoring of gearboxes. Therefore, new approaches based on electrical impedance analysis are proposed in literature, e.g. for the measurement of rolling bearing load or damage condition with so-called sensory utilizable machine elements (SuME). For this approach, an electrical signal is transmitted through the structure to be observed and the resulting impedance is measured. With this technique it is possible to detect loads and damages not only for bearings, but also for the entire gearbox. Another application of this method can be the transmission of electrical signals through machine elements and the gearbox themselves. However, uncertainty arises with regard to the distinct signal transmission in these processes, mainly due to parasitic capacitances. In this contribution, the disturbing factors on the measured impedance of a gearbox at different working points are investigated. For this purpose, disturbance factors are systematically identified and used as basis for a full factorial experimental design for screening the operational characteristics of a gearbox. The data obtained from the tests is analyzed to identify correlations between the disturbance factors and parasitic capacitances. The experiments show a speed- and torque-dependent behavior of the parasitic capacitances in a gearbox. These results can be used for further research of SuME and structure-integrated energy supply and signal paths as well as the evaluation of related measurement data by reducing the associated uncertainty.
A Comparison of U.S. International Freight Forwarders and Third Party Logistics Providers
Creators: name: Hsu, Chin-Miao
name: Hsu, Chin-Miao
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
Operational Planning of Intermodal Marine Terminals
Creators: name: Sideris, Alexios
name: Spasovic, Lazar N.
name: Boile, Maria
name: Sideris, Alexios
name: Spasovic, Lazar N.
name: Boile, Maria
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
A Multi-Commodity, Multi-Class Generalized Cost User Equilibrium Assignment Model
Creators: name: Spasovic, Lazar N.
name: Rowinski, Jakub
name: Ya, Wang
name: Hausman, Kenneth
name: Boile, Maria
name: Spasovic, Lazar N.
name: Rowinski, Jakub
name: Ya, Wang
name: Hausman, Kenneth
name: Boile, Maria
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
Steady-state negative Wigner functions of nonlinear nanomechanical oscillators
Creators: name: Rips, Simon
name: Kiffner, Martin
name: Wilson-Rae, Ignacio
name: Hartmann, Michael J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a scheme to prepare nanomechanical oscillators in nonclassical steady states, characterized by a pronounced negative Wigner function. In our optomechanical approach, the mechanical oscillator couples to multiple laser driven resonances of an optical cavity. By lowering the resonance frequency of the oscillator via an inhomogeneous electrostatic field, we significantly enhance its intrinsic geometric nonlinearity per phonon. This causes the motional sidebands to split into separate spectral lines for each phonon number and transitions between individual phonon Fock states can be selectively addressed. We show that this enables the preparation of the nanomechanical oscillator in a single phonon Fock state. Our scheme can for example be implemented with a carbon nanotube dispersively coupled to the evanescent field of a state of the art whispering gallery mode microcavity.
title: My Rearranged Life
Creators: name: Sajida, DiAugustine
Publisher: name: University of Kentucky Libraries
Year: 2023
Subjects: classificationCode: 6.4
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: My parents immigrated to the United States from India in the early 1960s, and I was born in 1967. I grew up in a time where there was little awareness of Indian culture or the religion of Islam in America, and I struggled against my parents attempt to impose both on me. My writing discusses the conflict I felt between my parents’ expectations and the American culture surrounding me that I began to embrace. My thesis has two parts: Part 1 is a collection of essays that shares the theme of my life as a second generation American, and Part 2 is the beginning of a longer piece that will become my memoir.
description: 2023 Sajida DiAugustine
Modeling Intermodal Freight Movements in the Chicago Area
Creators: name: Ziliaskopoulos, Athanasios
name: Li, Yue
name: Waller, S. Travis
name: Ziliaskopoulos, Athanasios
name: Li, Yue
name: Waller, S. Travis
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
Supporting a developer's discovery of task-relevant information
Creators: name: De Sousa Marques, Arthur
Publisher: name: University of British Columbia
Year: 2022

description: The information that a developer seeks to aid in the completion of a task typically exists across different kinds of software artifacts that include substantial natural language text. For instance, artifacts vary from conversational discussions about bug reports to tutorial descriptions of features in a library. In the artifacts that a developer consults, only some portions of the text will be useful to a developer's task and locating such portions can be time-consuming as the artifacts can include substantial text to peruse organized in different ways. For example, it might be easier to locate information in tutorial artifacts with structured headings whereas artifacts consisting of developer conversations might need to be read in detail. Given the limited time developers have to spend on any task, researchers have attempted to aid the developers by proposing a range of techniques to automate the identification of relevant text. However, this prior work is generally constrained to one or only a few types of artifacts. Enabling a developer access to artifact-specific approaches is difficult to deploy and support to the multitude of artifact types that is constantly evolving is challenging, if not impractical. In this dissertation, we propose a set of generalizable techniques to aid developers in locating a portion of text that might be useful for a task. These techniques are based on semantic patterns that arise from the empirical analysis of the text relevant to a task in multiple kinds of artifacts, leading us to propose techniques that incorporate the semantics of words and sentences to identify text likely relevant to a developer's task automatically. We evaluate the proposed techniques assessing the extent to which they identify text that developers deem relevant in different kinds of artifacts associated with Android development tasks. We then investigate how a tool that embeds the most promising semantic-based technique might assist developers while they perform a task. Results show that semantic-based techniques perform equivalently well across multiple artifact types and that a tool that automates the provision of task-relevant text assists developers in effectively completing a software development task.
title: «Астреин век». Великобритания, Россия и проблема нового мирового порядка в европейской политике первой половины XIX века (1815–1854 гг.)
title: Монография
titleType: Subtitle
Creators: name: Орлов А.А.
Publisher: name: Московский педагогический государственный университет
Year: 2019

description: Монография посвящена комплексному анализу отношений Великобритании и России в первой половине XIX в. (1815–1854 гг.) с целью выявления всех факторов (политических, экономических, правовых, социальных, отчасти психологических), способствовавших взаимодействию двух стран в борьбе за сохранение венской системы международных отношений и формирование нового мирового порядка в Европе, на Ближнем Востоке и в Центральной Азии. В работе основное внимание обращено не на противоречия, разделявшие обе страны, хотя, конечно, и им уделено необходимое внимание, а на то, что сближало Лондон и Петербург в двусторонних и международных отношениях, заставляя стремиться к возобновлению сотрудничества даже после периодов охлаждения или кризиса. На основе архивных документов, неиспользованных или малоиспользованных ранее материалов мемуарного характера, эпистолярных источников, публицистики прослежен процесс сложной и многоступенчатой эволюции британо-российских отношений от взаимодействия в рамках Четверного союза (1815 г.) к постепенному снижению уровня сотрудничества и, в конце концов, к разрыву отношений в эпоху Крымской войны (1854 г.).
description: The monograph is devoted to the complex analysis of the relations of great Britain and Russia in first half XIX century (1815-1854) was to identify all the factors (political, economic, legal, social, and partly psychological) which contributed to the cooperation between the two countries in the struggle to preserve the Vienna system of international relations and the formation of a new world order in Europe, the middle East and Central Asia. The work focuses not on the controversies that separated the two countries, although, of course, and they are given the necessary attention, and that brought London and Petersburg in bilateral and international relations, forcing to strive for the resumption of cooperation even after periods of cooling or crisis. On the basis of archival documents, unused or previously malosolone materials, memoirs, epistolary sources, journalism traced the process is complex and multistage evolution of British-Russian relations of cooperation in the framework of the Quadruple Alliance (1815) to the gradual decrease in the level of cooperation and, in the end, to the breakdown of relationships in the era of the Crimean war (1854).
'Instant music' a graphic-musical-movement score in 5 parts by Iga Eckert
Creators: name: Iga, Eckert
Publisher: name: Zenodo
Year: 2023
Subjects: score, graphic score, infinite music, improvisation, overparametric music, color, shape, sound, movement, common language, symbol, instant music

description: The creation of 'Instant Music', referring to distant artistic events of the 20th century, was intended to show contemporary art in the context of tradition and avant-garde achievements of the past. Improvized music is captured in a 5-part graphic-musical-movement piece. Each part refers to the specific examples of Schaeffer's music forms such as graphic music, decomposition, happening, infinite and overparametric music, instrumental theatre. The possibility to create one’s own graphic notation in part 3 of 'Instant music' is intended to indicate the common features of visual, musical, movement and spatial symbols. 'Instant music' as a graphic score may be limited to the sound or movement layer only but it was originally designed to develop body awareness, improvisation skills and to model an individual, symbolic language which appears in sound, movement and visual arts. ISMN 979-0-801570-06-2 The article is published on the digital platform ‚Atlas of Eurhythmics’ This contribution is part of the Erasmus+ Project Eurhythmics in Education and Artistic Practice (EEAP) 2020-1-SE01-KA203-077823 Scientific publication
description: This contribution is part of the Erasmus+ Project Eurhythmics in Education and Artistic Practice (EEAP) 2020-1-SE01-KA203-077823
Intermodal Passenger Solutions: The Acadia National Park Case
Creators: name: Fricke, Donna
name: Hummel, John
name: Fricke, Donna
name: Hummel, John
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
title: LiCSBAS
title: An Open-Source InSAR Time Series Analysis Package Integrated with the LiCSAR Automated Sentinel-1 InSAR Processor
titleType: Subtitle
Creators: name: Morishita, Yu
name: Lazecky, Milan
name: Wright, Tim J.
name: Weiss, Jonathan R.
name: Elliott, John R.
name: Hooper, Andy
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: For the past five years, the 2-satellite Sentinel-1 constellation has provided abundant and useful Synthetic Aperture Radar (SAR) data, which have the potential to reveal global ground surface deformation at high spatial and temporal resolutions. However, for most users, fully exploiting the large amount of associated data is challenging, especially over wide areas. To help address this challenge, we have developed LiCSBAS, an open-source SAR interferometry (InSAR) time series analysis package that integrates with the automated Sentinel-1 InSAR processor (LiCSAR). LiCSBAS utilizes freely available LiCSAR products, and users can save processing time and disk space while obtaining the results of InSAR time series analysis. In the LiCSBAS processing scheme, interferograms with many unwrapping errors are automatically identified by loop closure and removed. Reliable time series and velocities are derived with the aid of masking using several noise indices. The easy implementation of atmospheric corrections to reduce noise is achieved with the Generic Atmospheric Correction Online Service for InSAR (GACOS). Using case studies in southern Tohoku and the Echigo Plain, Japan, we demonstrate that LiCSBAS applied to LiCSAR products can detect both large-scale (>100 km) and localized (~km) relative displacements with an accuracy of <1 cm/epoch and ~2 mm/yr. We detect displacements with different temporal characteristics, including linear, periodic, and episodic, in Niigata, Ojiya, and Sanjo City, respectively. LiCSBAS and LiCSAR products facilitate greater exploitation of globally available and abundant SAR datasets and enhance their applications for scientific research and societal benefit.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1078
title: Entanglement, complementarity, and vacuum fields in spontaneous parametric down-conversion
Creators: name: Menzel, Ralf
name: Heuer, Axel
name: Milonni, Peter W.
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 530 Physik

description: Using two crystals for spontaneous parametric down-conversion in a parallel setup, we observe two-photon interference with high visibility. The high visibility is consistent with complementarity and the absence of which-path information. The observations are explained as the effects of entanglement or equivalently in terms of interfering probability amplitudes and also by the calculation of a second-order field correlation function in the Heisenberg picture. The latter approach brings out explicitly the role of the vacuum fields in the down-conversion at the crystals and in the photon coincidence counting. For comparison, we show that the Hong–Ou–Mandel dip can be explained by the same approach in which the role of the vacuum signal and idler fields, as opposed to entanglement involving vacuum states, is emphasized. We discuss the fundamental limitations of a theory in which these vacuum fields are treated as classical, stochastic fields.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1077
On graphs of defect at most 2
Creators: name: Feria-Purón, Ramiro
name: Miller, Mirka
name: Pineda-Villavicencio, Guillermo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35, 05C75

description: In this paper we consider the degree/diameter problem, namely, given natural numbers Δ \geq 2 and D \geq 1, find the maximum number N(Δ,D) of vertices in a graph of maximum degree Δ and diameter D. In this context, the Moore bound M(Δ,D) represents an upper bound for N(Δ,D). Graphs of maximum degree Δ, diameter D and order M(Δ,D), called Moore graphs, turned out to be very rare. Therefore, it is very interesting to investigate graphs of maximum degree Δ \geq 2, diameter D \geq 1 and order M(Δ,D) - ε with small ε > 0, that is, (Δ,D,-ε)-graphs. The parameter ε is called the defect. Graphs of defect 1 exist only for Δ = 2. When ε > 1, (Δ,D,-ε)-graphs represent a wide unexplored area. This paper focuses on graphs of defect 2. Building on the approaches developed in [11] we obtain several new important results on this family of graphs. First, we prove that the girth of a (Δ,D,-2)-graph with Δ \geq 4 and D \geq 4 is 2D. Second, and most important, we prove the non-existence of (Δ,D,-2)-graphs with even Δ \geq 4 and D \geq 4; this outcome, together with a proof on the non-existence of (4, 3,-2)-graphs (also provided in the paper), allows us to complete the catalogue of (4,D,-ε)-graphs with D \geq 2 and 0 \leq ε \leq 2. Such a catalogue is only the second census of (Δ,D,-2)-graphs known at present, the first being the one of (3,D,-ε)-graphs with D \geq 2 and 0 \leq ε \leq 2 [14]. Other results of this paper include necessary conditions for the existence of (Δ,D,-2)-graphs with odd Δ \geq 5 and D \geq 4, and the non-existence of (Δ,D,-2)-graphs with odd Δ \geq 5 and D \geq 5 such that Δ \equiv 0, 2 (mod D).
description: 22 pages, 11 Postscript figures
Energy efficiency analysis as a function of the working voltages in supercapacitors
Creators: name: Quintana, Jose
name: Ramos, Alejandro
name: Diaz, Moises
name: Nuez, Ignacio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Supercapacitors are increasingly used as energy storage elements. Unlike batteries, their state of charge has a considerable influence on their voltage in normal operation, allowing them to work from zero to their maximum voltage. In this work, a theoretical and practical analysis is proposed of the energy efficiency of these devices according to their working voltages. To this end, several supercapacitors were subjected to charge and discharge cycles until the measurements of current and voltage stabilized. At this point their energy efficiency was calculated. These charge-discharge cycles were carried out: i) without rest between charging and discharging; and ii) with a rest of several minutes between the two stages. Using the information obtained from the tests, the energy efficiency is shown plotted against the minimum and maximum working voltages. By consulting the data and the graphs, the ideal working voltages to optimize the energy efficiency of these devices can be obtained.
description: 18 pages, 10 figures
title: Student-led assessment in the primary classroom: facilitating student ownership and motivations towards assessment
Creators: name: Brennan, Kate
Publisher: name: University of Glasgow
Year: 2018
Subjects: subject: Assessment, motivation, student-led assessment, student engagement.

description: By allowing students to play an active role in the assessment of their work, can their perceptions and motivations be changed? This dissertation considers the impact of working collaboratively with primary school teachers and students to develop the skills needed to integrate student-led assessment into their daily practice, with the objective of analysing how this affects the students’ motivations and attitudes towards their work. Three teachers and the researcher, the Head of Primary, concertedly trained in how to develop student-led assessment across a 13-week trial that involved Year 4 students in an English curriculum international school in Malaysia. An experimental group comprising of 28 student participants engaged in three rounds of focus groups, while the three teacher participants engaged in weekly working focus groups as well as three interviews over the trial period. The findings suggest that students benefited from their involvement in student-led assessment since, at the end of the study, they could more accurately understand and explain their progress and predict their grades, as well as explain the uses and importance of assessment as learning. The teachers observed successes, such as increased student motivation, enhanced student understanding, more advanced autonomy, and challenges, such as timing and consistency with student-led assessment across the three Year 4 classes. The research leads to suggestions with regards to implications for practice of teachers, schools and policy makers, as well as directions for future research.
Spin Damping Monopole
Creators: name: Takeuchi, Akihito
name: Tatara, Gen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present theoretical evidence that a magnetic monopole emerges in dynamic magnetic systems in the presence of the spin-orbit interaction. The monopole field is expressed in terms of spin damping associated with magnetization dynamics. We demonstrate that the observation of this spin damping monopole is accomplished electrically using Ampere's law for monopole current. Our discovery suggests the integration of monopoles into electronics, namely, monopolotronics.
description: 9 pages, 1 figures
Quantum dynamics of the Einstein-Rosen wormhole throat
Creators: name: Kunstatter, Gabor
name: Louko, Jorma
name: Peltola, Ari
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the polymer quantization of the Einstein wormhole throat theory for an eternal Schwarzschild black hole. We numerically solve the difference equation describing the quantum evolution of an initially Gaussian, semi-classical wave packet. As expected from previous work on loop quantum cosmology, the wave packet remains semi-classical until it nears the classical singularity at which point it enters a quantum regime in which the fluctuations become large. The expectation value of the radius reaches a minimum as the wave packet is reflected from the origin and emerges to form a near Gaussian but asymmetrical semi-classical state at late times. The value of the minimum depends in a non-trivial way on the initial mass/energy of the pulse, its width and the polymerization scale. For wave packets that are sufficiently narrow near the bounce, the semi-classical bounce radius is obtained. Although the numerics become difficult to control in this limit, we argue that for pulses of finite width the bounce persists as the polymerization scale goes to zero, suggesting that in this model the loop quantum gravity effects mimicked by polymer quantization do not play a crucial role in the quantum bounce.
description: 23 pages, 11 figures. v2: minor corrections and clarifications
Analyzing the Passenger Transportation Mode Decision Process: A Study of Business Travelers
Creators: name: Hanna, Joe
name: Drea, John
name: Hanna, Joe
name: Drea, John
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
title: Using effect catalogues for the design of sensing machine elements – Method and exemplary application
Creators: name: Harder, André
name: Gross, Hans Joachim
name: Vorwerk-Handing, Gunnar
name: Kirchner, Eckhard
Publisher: name: Cambridge University Press
Year: 2023

description: Close to process measuring improves the data quality of a condition monitoring process. A possibility to access such measurements comes with the addition of a sensory function in machine elements. For a systematic development of sensing machine elements, an approach is presented for the identification of possible measurands to determine a variable of interest. Based on a modelling of physical causeeffect- relationships by using an effect matrix and an effect catalogue it allows to consider both direct and indirect measurements for the determination of measurands in technical systems.

The presented approach is initially applied to develop a sensory solution for self-lubricated fibrecomposite sliding bearings. The aim is to measure a variable of interest that can give a conclusion about the estimated remaining useful lifetime. The development process is described and possible solutions for measurement concepts are presented. The electrical capacity measurement, evaluated as the most promising concept, is described in detail and experimental results are presented.

These results show the applicability of the sensory concept and therefore, the benefits of the presented approach.
Characterizing telomerase reverse transcriptase’s DNA damage response activity in the context of homologous recombination-deficient ovarian cancer
Creators: name: Nguyen, Truc
Publisher: name: University of British Columbia
Year: 2024

description: Telomerase is a specialized RNA-dependent DNA polymerase that maintains the length of telomeres at chromosomal ends by synthesizing telomeric repeats de novo from an internal RNA template. Without telomerase activity, telomeres shorten with each cell division, eventually reaching a length that would prompt either senescence or apoptosis. Telomerase reverse transcriptase (TERT), the catalytic component of telomerase, is upregulated in the majority of human cancers, often at a level that is more than sufficient to keep telomere length above the critical threshold. Previously, our laboratory reported that recombinant TERT expression protects transformed fibroblasts that utilize an alternative telomerase-free telomere lengthening mechanism against drug-induced DNA damage, indicating that TERT has a role in DNA damage response which is independent from its canonical telomeric function. In the present study, we treated recombinant TERT-expressing ovarian cancer cells with genotoxic agents of distinct mechanisms of action to identify possible DNA damage response pathways that TERT participates in. Specifically, our cell model is the recombinant TERT-expressing PEO1 ovarian cancer cells (PEO1+TERT) which have innately impaired capacity for the error-free DNA repair pathway homologous recombination (HR). Genotoxic drugs tested include CX5461 (a G-quadruplex stabilizer currently in clinical trials for HR-deficient cancers) and the following FDA-approved chemotherapeutic agents: bleocin (direct double-strand break inducer); etoposide (topoisomerase II inhibitor); niraparib and olaparib (poly-ADP ribose polymerase (PARP) inhibitors); cisplatin and oxaliplatin (platinum compounds); and mitomycin C (non-platinum crosslinking agent). Additionally, we performed immunofluorescence to detect γH2AX foci – a DNA damage biomarker – in drug-treated PEO1+TERT in comparison to vector-control cells. We found that recombinant TERT confers significant protection against bleocin, CX5461, etoposide, and mitomycin C, and insignificant protection against platinum compounds, on HR-deficient PEO1, and that this protective effect of TERT is not dependent on PARP activity. Additionally, we observed that PEO1+TERT escapes cell cycle arrest and proliferates better than vector-control cells subjected to the same treatment despite sustaining higher level of γH2AX foci formation. Thus, we conclude that TERT promotes DNA damage tolerance and/or error-prone repair in HR-deficient PEO1 cells, and as such is a potential chemotherapy-sensitizing target for telomerase-positive HR-deficient cancers.
Anisotropic surface transport in topological insulators in proximity to a helical spin density wave
Creators: name: Li, Qiuzi
name: Ghosh, Parag
name: Sau, Jay D.
name: Tewari, Sumanta
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effects of spatially localized breakdown of time reversal symmetry on the surface of a topological insulator (TI) due to proximity to a helical spin density wave (HSDW). The HSDW acts like an externally applied one-dimensional periodic(magnetic) potential for the spins on the surface of the TI, rendering the Dirac cone on the TI surface highly anisotropic. The decrease of group velocity along the direction $\hat{x}$ of the applied spin potential is twice as much as that perpendicular to $\hat{x}$. At the Brillouin zone boundaries (BZB) it also gives rise to new semi-Dirac points which have linear dispersion along $\hat{x}$ but quadratic dispersion perpendicular to $\hat{x}$. The group velocity of electrons at these new semi-Dirac points is also shown to be highly anisotropic. Experiments using TI systems on multiferroic substrates should realize our predictions. We further discuss the effects of other forms of spin density wave on the surface transport property of topological insulator.
description: 8 pages, 8 figures
Superconducting phase with a chiral $f$-wave pairing symmetry and Majorana fermions induced in a hole-doped semiconductor
Creators: name: Mao, Li
name: Shi, Junren
name: Niu, Qian
name: Zhang, Chuanwei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that a chiral $f+if$-wave superconducting pairing may be induced in the lowest heavy hole band of a hole-doped semiconductor thin film through proximity contact with an \textit{s}-wave superconductor. The chirality of the pairing originates from the $3π$ Berry phase accumulated for a heavy hole moving along a close path on the Fermi surface. There exist three chiral gapless Majorana edge states, in consistence with the chiral $f+if$% -wave pairing. We show the existence of zero energy Majorana fermions in vortices in the semiconductor-superconductor heterostructure by solving the Bogoliubov-de-Gennes equations numerically as well as analytically in the strong confinement limit.
description: 5 pages, 4 figures
Double-delta potentials: one dimensional scattering. The Casimir effect and kink fluctuations
Creators: name: Guilarte, J. Mateos
name: Muñoz-Castañeda, Jose M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The path is explored between one-dimensional scattering through Dirac-$δ$ walls and one-dimensional quantum field theories defined on a finite length interval with Dirichlet boundary conditions. It is found that two $δ$'s are related to the Casimir effect whereas two $δ$'s plus the first transparent P$\ddot{\rm o}$sch-Teller well arise in the context of the sine-Gordon kink fluctuations, both phenomena subjected to Dirichlet boundary conditions. One or two delta wells will be also explored in order to describe absorbent plates, even though the wells lead to non unitary Quantum Field Theories.
description: 15 pages. To be published in the International Journal of Theoretical Physics
Global estimates of fundamental solutions for higher-order Schrödinger equations
Creators: name: Kim, JinMyong
name: Arnold, Anton
name: Yao, Xiaohua
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 42B20, 42B37, 35Q41, 35B65

description: In this paper we first establish global pointwise time-space estimates of the fundamental solution for Schrödinger equations, where the symbol of the spatial operator is a real non-degenerate elliptic polynomial. Then we use such estimates to establish related Lp-Lq estimates on the Schrödinger solution. These estimates extend known results from the literature and are sharp. This result was latetly already generalized to a degenerate case (cf. [9]).
Baxter Q-Operators and Representations of Yangians
Creators: name: Bazhanov, Vladimir V.
name: Frassek, Rouven
name: Lukowski, Tomasz
name: Meneghelli, Carlo
name: Staudacher, Matthias
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a new approach to Baxter Q-operators by relating them to the theory of Yangians, which are the simplest examples for quantum groups. Here we open up a new chapter in this theory and study certain degenerate solutions of the Yang-Baxter equation connected with harmonic oscillator algebras. These infinite-state solutions of the Yang-Baxter equation serve as elementary, "partonic" building blocks for other solutions via the standard fusion procedure. As a first example of the method we consider sl(n) compact spin chains and derive the full hierarchy of operatorial functional equations for all related commuting transfer matrices and Q-operators. This leads to a systematic and transparent solution of these chains, where the nested Bethe equations are derived in an entirely algebraic fashion, without any reference to the traditional Bethe ansatz techniques.
description: 27 pages, 5 figures; v2: typos fixed, references updated and added
Polarization-selective vortex-core switching by orthogonal Gaussian-pulse currents
Creators: name: Yu, Young-Sang
name: Lee, Ki-Suk
name: Jung, Hyunsung
name: Choi, Youn-Seok
name: Yoo, Myoung-Woo
name: Han, Dong-Soo
name: Im, Mi-Young
name: Fischer, Peter
name: Kim, Sang-Koog
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We experimentally demonstrate low-power-consumption vortex-core switching in magnetic nanodisks using tailored rotating magnetic fields that are produced with orthogonal and unipolar Gaussian-pulse currents. Optimal width of the orthogonal pulses and their time delay are found to be determined only by the angular eigenfrequency ω_D for a given vortex-state disk of its polarization p, such that σ = 1/ω_D and Δt = πp/2ω_D, as studied from analytical and micromagnetic numerical calculations. The estimated optimal pulse parameters are in good agreements with the experimentally found results. This work provides a foundation for energy-efficient information recording in vortex-core cross-point architecture.
description: 32 pages, 10 figures
Concept for User Support Network Documentation (NFDI4Earth Deliverable D2.2.3)
Creators: name: Mehrtens, Hela
name: Langer, Ines
name: Purr, Christopher
name: Getzlaff, Klaus
name: Hachinger, Stephan
name: Lorenz, Sören
name: Müller-Pfefferkorn, Ralph
Publisher: name: Zenodo
Year: 2023
Subjects: NFDI
NFDI4Earth
NFDI4Earth Deliverable
NFDI4Earth User Support Network
NFDI4Earth USN
NFDI4Earth Task Area 2
NFDI4Earth 2Facilitate

description: In this concept we describe the different documentation processes of the
NFDI4Earth distributed user support network (USN) and explain the need
for internal or open access to the description of different processes
for support.

The USN will provide content for the NFDI4Earth Knowledge Hub, in
particular for the NFDI4Earth Living Handbook, produced according to
previously defined documentation standards. Additionally, user-relevant
gaps in the Knowledge Hub documentation will be identified from the user
questions coming up in the USN helpdesk. They will be collected and
communicated to the corresponding measures.
description: This work has been funded by the German Research Foundation (DFG) through the project NFDI4Earth (DFG project no.460036893, https://www.nfdi4earth.de/) within the German National Research Data Infrastructure (NFDI, https://www.nfdi.de/).
Equivalence relations for homology cylinders and the core of the Casson invariant
Creators: name: Massuyeau, Gwenael
name: Meilhan, Jean-Baptiste
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27, 57N10, 20F38

description: Let R be a compact oriented surface of genus g with one boundary component. Homology cylinders over R form a monoid IC into which the Torelli group I of R embeds by the mapping cylinder construction. Two homology cylinders M and M' are said to be Y_k-equivalent if M' is obtained from M by "twisting" an arbitrary surface S in M with a homeomorphim belonging to the k-th term of the lower central series of the Torelli group of S. The J_k-equivalence relation on IC is defined in a similar way using the k-th term of the Johnson filtration. In this paper, we characterize the Y_3-equivalence with three classical invariants: (1) the action on the third nilpotent quotient of the fundamental group of R, (2) the quadratic part of the relative Alexander polynomial, and (3) a by-product of the Casson invariant. Similarly, we show that the J_3-equivalence is classified by (1) and (2). We also prove that the core of the Casson invariant (originally defined by Morita on the second term of the Johnson filtration of I) has a unique extension (to the corresponding submonoid of IC) that is preserved by Y_3-equivalence and the mapping class group action.
description: 63 pages. One reference added and some minor modifications in this final version
On the spectrum of sum and product of non-hermitian random matrices
Creators: name: Bordenave, Charles
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this short note, we revisit the work of T. Tao and V. Vu on large non-hermitian random matrices with independent and identically distributed entries with mean zero and unit variance. We prove under weaker assumptions that the limit spectral distribution of sum and product of non-hermitian random matrices is universal. As a byproduct, we show that the generalized eigenvalues distribution of two independent matrices converges almost surely to the uniform measure on the Riemann sphere.
description: 8 pages, statement of main theorem slightly improved
Brazil's Soybean Transportation System: A Comparison with the US System?
Creators: name: McVey, Marty J.
name: Baumel, C. Phillip
name: Wisner, Robert
name: McVey, Marty J.
name: Baumel, C. Phillip
name: Wisner, Robert
Publisher: name: Unknown
Year: 2000
Subjects: Public Economics

description: Presented at the 42nd Transportation Research Forum meeting, Nov.29-Dec.1, 2000, Annapolis, MD
Care conundrum : experiences of younger adult eldercare providers
Creators: name: Treleaven, Christina
Publisher: name: University of British Columbia
Year: 2022

description: Caring is complex—often framed in love, sometimes mired with obligation, guilt, stress and anxiety. Informal care is rarely a simple addition to one’s life but rather it represents a re-thinking of relationships, a re-evaluation of priorities and career direction, and an emotional journey as carers navigate issues of autonomy and independence when supporting their parents and older family members. In this integrated-article dissertation, I combine qualitative and quantitative methods to consider the broader experience of younger adult informal eldercare providers. In Chapter 2, I examine how informal eldercare providers conceptualize care and caregiving. Findings suggest that participants define care in two key ways: as assistance or activities driven by necessity, or as physical care. In Chapter 3, I examine the work/family conflict that arises for younger adult eldercare providers, and the associated reductions in work hours or limits to career advancement by turning down or choosing not to apply for promotions. My findings demonstrate that these individuals are indeed making career choices in relation to care, and that women in particular are shaping their career trajectories around their eldercare responsibilities—with the potential for long term career effects. In Chapter 4, I use theories of mental labour to analyze the experiences of informal eldercare providers in the COVID-19 pandemic. My findings highlight the salience of mental labour as an important form of eldercare, as exemplified by worries about transmission risk, the consequences of isolation, and navigating access to needed medical services during periods of lockdown or reduced interaction. My dissertation offers a glimpse into the insights and experiences of younger adult eldercare providers. I reflect the stories, experiences, and implications of informal care, conscientiously examining the relational nature of care provision. In doing so, my aim is to encourage scholars to think differently about eldercare—to expand our conception of care beyond task or time-based approaches, to consider the path-based nature of care penalties, and to acknowledge new care strategies and behaviours emerging throughout the COVID-19 pandemic.
VISITOR EXPERIENCE TOWARDS DIGITAL PAYMENTS AMONG TOURISTS
Creators: name: GARIMA SINGH
name: Dr. RAJEEV P. V.
Publisher: name: Zenodo
Year: 2023
Subjects: UTAUT-2, Digital Payment Services, Effort Expectancy, Performance Expectancy, Social Influence, Price Value, Promotional Offers, Facilitating Conditions, Habit, Behavioural Intention, Use Behaviour, Financial Strength.

description: Abstract 
The study aims to examine the impact of various constructs of UTAUT-2 on tourists' behavioural intention to use digital payment services. The study also attempted to examine the impact of usage behaviour on financial strength of the tourists. Data for the study has been collected from tourists of Uttar Pradesh, India. The study has used Interview schedule as the main data collection. The collected data has been analysed through SPSS 26.0 and AMOS 26.0. The findings of the study led to the conclusion that all constructs of UTAUT-2 have a significant and positive impact on their behavioural intention to use digital payment services. The findings of this study imply that digital payment services are an effective tool for ensuring the financial strength of the tourists. The findings presented in this study are highly valuable for policymakers, business enterprises and academicians working in the field of digital payment services. This study provides a more comprehensive understanding of how people adopt and use technology, as well as the consequences of their actions. Finally, this study adds to the limited literature on the adoption and usage behaviour of digital payment apps in the context of Indian tourists.
Nonlinear vibration behavior of metal foam structures
Creators: name: Mohammadzadeh Keleshteri, Mohammad
Publisher: name: University of British Columbia
Year: 2022

description: Metal foam structures (MFS) show promising static and dynamic performances with some initial real-life applications. However, the dynamic behavior of MFS is not thoroughly addressed yet, which is one of the reasons that limits their use. This thesis studies their nonlinear vibration behavior for better understanding and further development of this structural material. Theoretical models are developed in this thesis to study nonlinear free and forced vibrational behavior of beams with bidirectional porosities, where the voids are non-uniformly distributed through the length and thickness of the beam. Moreover, effect of porosities on nonlinear natural frequencies of cylindrical panels is studied as well. In addition, a few novel porosity distributions are proposed to improve the vibrational response of the metal foam structures. The dynamic governing equations are derived based on the third-order shear deformation theory, Hamilton’s principle and von Kármán geometrical nonlinearity. The governing equations are solved using numerical and analytical methods (method of multiple scales and harmonic balance method) based on the problem type. Generalized differential quadrature method (GDQM) is one of the utilized numerical methods due to its simplicity and low computational cost. However, the GDQM has some limitations in implementing boundary conditions, thus to overcome this issue, a novel and simple approach is proposed in this study. Elastic properties of the composite metal foams (CMFs) are evaluated using homogenization technique and finite element simulation. CMFs are a new class of closed-cell porous materials that can be produced by distributing metallic spheres in a metallic matrix. The CMFs have better mechanical performance than the regular metal foams. Studying the effect of microporosities in spheres’ wall and matrix of the CMFs revealed that the matrix microporosity has higher effect on the CMFs elastic modulus than the spheres’ microporosity. Furthermore, results revealed that increasing the packing factor and spheres wall thickness increases the CMFs elastic modulus. Finally, it is shown that the CMF structures could have better vibrational response in comparison to the regular metal foam structures. This allows widespread use of CMFs as a new and attractive type of metal foam.