cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the dynamic suction pumping of blood cells in tubular hearts
Creators: name: Battista, Nicholas A.
name: Lane, Andrea N.
name: Miller, Laura A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: 76Zxx, 74F10, 92C10, 92C30

description: Around the third week after gestation in embryonic development, the human heart consists only of a valvless tube, unlike a fully developed adult heart, which is multi-chambered. At this stage in development, the heart valves have not formed and so net flow of blood through the heart must be driven by a different mechanism. It is hypothesized that there are two possible mechanisms that drive blood flow at this stage - Liebau pumping (dynamic suction pumping or valveless pumping) and peristaltic pumping. We implement the immersed boundary method with adaptive mesh refinement (IBAMR) to numerically study the effect of hematocrit on the circulation around a valveless. Both peristalsis and dynamic suction pumping are considered. In the case of dynamic suction pumping, the heart and circulatory system is simplified as a flexible tube attached to a relatively rigid racetrack. For some Womersley number (Wo) regimes, there is significant net flow around the racetrack. We find that the addition of flexible blood cells does not significantly affect flow rates within the tube for Wo $\leq$ 10. On the other hand, peristalsis consistently drives blood around the racetrack for all Wo and for all hematocrit considered.
description: 21 pages, 19 figures
Deep Learning Approach for Classifying the Aggressive Comments on Social Media: Machine Translated Data Vs Real Life Data
Creators: name: Akter, Mst Shapna
name: Shahriar, Hossain
name: Ahmed, Nova
name: Cuzzocrea, Alfredo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Aggressive comments on social media negatively impact human life. Such offensive contents are responsible for depression and suicidal-related activities. Since online social networking is increasing day by day, the hate content is also increasing. Several investigations have been done on the domain of cyberbullying, cyberaggression, hate speech, etc. The majority of the inquiry has been done in the English language. Some languages (Hindi and Bangla) still lack proper investigations due to the lack of a dataset. This paper particularly worked on the Hindi, Bangla, and English datasets to detect aggressive comments and have shown a novel way of generating machine-translated data to resolve data unavailability issues. A fully machine-translated English dataset has been analyzed with the models such as the Long Short term memory model (LSTM), Bidirectional Long-short term memory model (BiLSTM), LSTM-Autoencoder, word2vec, Bidirectional Encoder Representations from Transformers (BERT), and generative pre-trained transformer (GPT-2) to make an observation on how the models perform on a machine-translated noisy dataset. We have compared the performance of using the noisy data with two more datasets such as raw data, which does not contain any noises, and semi-noisy data, which contains a certain amount of noisy data. We have classified both the raw and semi-noisy data using the aforementioned models. To evaluate the performance of the models, we have used evaluation metrics such as F1-score,accuracy, precision, and recall. We have achieved the highest accuracy on raw data using the gpt2 model, semi-noisy data using the BERT model, and fully machine-translated data using the BERT model. Since many languages do not have proper data availability, our approach will help researchers create machine-translated datasets for several analysis purposes.
The impact of vaccination on transmission and death by COVID-19: an observational study in Portugal’s biggest primary care cluster
Creators: name: Tedim, Sofia
name: Pinho-Bandeira, Tiago
name: Leitão, Rui Pedro
name: Silva, Cristiana
name: Pinheiro, Sofia J
name: Afreixo, Vera
name: Oliveira, Ana
Publisher: name: Journal of Statistics on Health Decision
Year: 2022

description: Vaccines are a key tool to manage the COVID-19 pandemic by preventing infection, hospitalization, severe disease, or death. In Portugal, information on vaccine effectiveness in real-life settings is still limited. Therefore, the main goal of this study is to evaluate the association between vaccination against COVID-19 and mortality and transmissibility in the population of the biggest Primary Care Cluster in Portugal, ACES Baixo Vouga (ACES BV). A retrospective, observational study including all reported cases of COVID-19 in ACES BV between December 2020 and September 2021 was conducted (N=18,415). Anonymized data on demographic, clinical, epidemiological characteristics and outcomes of interest of the COVID-19 confirmed cases were collected. To model vaccination’s association with death, a logistic regression analysis was performed. To estimate the effect of vaccination on the number of secondary cases, a zero-inflated negative binomial model was used. Of 18,415 confirmed cases included in this study, 1,981 (10.8%) were vaccinated. A complete vaccination scheme against COVID-19 (OR=0.22, CI95 0.09-0.47) and female sex (OR=0.42, CI95 0.30-0.57) protected against death, while age (OR=1.12, CI95 1.10-1.13), comorbidities (OR=4.14, CI95 2.27- 8.34) and the presence of symptoms (OR=1.72, CI95 2.27-8.34) increased the odds of death. A complete vaccination scheme (RR 0.63, CI95 0.49–0.81) decreased the risk for the number of secondary cases in the model without outliers. It is vital to monitor the vaccination effects in the real world and to better understand the characteristics of COVID-19 vaccine-induced immunity.
description: Journal of Statistics on Health Decision, vol. 4 n.º 2 (2022)
Short term fluctuations of wind and solar power systems
Creators: name: Anvari, M.
name: Lohmann, G.
name: Wächter, M.
name: Milan, P.
name: Lorenz, E.
name: Heinemann, D.
name: Tabar, M. Reza Rahimi
name: Peinke, Joachim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Wind and solar power are known to be highly influenced by weather events and may ramp up or down abruptly. Such events in the power production influence not only the availability of energy, but also the stability of the entire power grid. By analysing significant amounts of data from several regions around the world with resolutions of seconds to minutes, we provide strong evidence that renewable wind and solar sources exhibit multiple types of variability and nonlinearity in the time scale of {\it seconds} and characterise their stochastic properties. In contrast to previous findings, we show that only the jumpy characteristic of renewable sources decreases when increasing the spatial size over which the renewable energies are harvested. Otherwise, the strong non-Gaussian, intermittent behaviour in the cumulative power of the total field survives even for a country-wide distribution of the systems. The strong fluctuating behaviour of renewable wind and solar sources can be well characterised by Kolmogorov-like power spectra and $q-$exponential probability density functions. Using the estimated potential shape of power time series, we quantify the jumpy or diffusive dynamic of the power. Finally we propose a time delayed feedback technique as a control algorithm to suppress the observed short term non-Gaussian statistics in spatially strong correlated and intermittent renewable sources.
description: arXiv admin note: substantial text overlap with arXiv:1505.01638
Minimum-Time Transitions between Thermal and Fixed Average Energy States of the Quantum Parametric Oscillator
Creators: name: Stefanatos, Dionisis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences
subject: 49K15, 82C10

description: In this article we use geometric optimal control to completely solve the problem of minimum-time transitions between thermal equilibrium and fixed average energy states of the quantum parametric oscillator, a system which has been extensively used to model quantum heat engines and refrigerators. We subsequently use the obtained results to find the minimum driving time for a quantum refrigerator and the quantum finite-time availability of the parametric oscillator, i.e. the potential work which can be extracted from this system by a very short finite-time process.
description: arXiv admin note: text overlap with arXiv:1603.01545
OH-SMArt Symposium 2023 Data Management
Creators: name: Stigter, Sanneke
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2023
Subjects: subject: Humanities
subject: FOS: Humanities
subject: Information and Computing Sciences
subject: Language, Communication and Culture
subject: Museology

description: Presentation on Data Management for Oral History interviews about artworks in museums and cultural heritage institutions. Presented at the OH-SMArt symposium that took place on 19 April 2023 in De Pont, Tilburg, the Netherlands. Oral History – Stories at the Museum around Artworks (OH-SMArt) is a long term initiative to significantly improve the digital research chain around using Oral History and spoken narratives, with research into artworks and museums as a use case.
Mapping the Chemical Potential Landscape of a Triple Quantum Dot
Creators: name: Broome, M. A.
name: Gorman, S. K.
name: Keizer, J. G.
name: Watson, T. F.
name: Hile, S. J.
name: Baker, W. J.
name: Simmons, M. Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the non-equilibrium charge dynamics of a triple quantum dot and demonstrate how electron transport through these systems can give rise to non-trivial tunnelling paths. Using a real-time charge sensing method we establish tunnelling pathways taken by particular electrons under well-defined electrostatic configurations. We show how these measurements map to the chemical potentials for different charge states across the system. We use a modified Hubbard Hamiltonian to describe the system dynamics and show that it reproduces all experimental observations.
description: 7 pages, 3 figures
Better partitions of protein graphs for subsystem quantum chemistry
Creators: name: von Looz, Moritz
name: Wolter, Mario
name: Jacob, Christoph R.
name: Meyerhenke, Henning
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Determining the interaction strength between proteins and small molecules is key to analyzing their biological function. Quantum-mechanical calculations such as \emph{Density Functional Theory} (DFT) give accurate and theoretically well-founded results. With common implementations the running time of DFT calculations increases quadratically with molecule size. Thus, numerous subsystem-based approaches have been developed to accelerate quantum-chemical calculations. These approaches partition the protein into different fragments, which are treated separately. Interactions between different fragments are approximated and introduce inaccuracies in the calculated interaction energies. To minimize these inaccuracies, we represent the amino acids and their interactions as a weighted graph in order to apply graph partitioning. None of the existing graph partitioning work can be directly used, though, due to the unique constraints in partitioning such protein graphs. We therefore present and evaluate several algorithms, partially building upon established concepts, but adapted to handle the new constraints. For the special case of partitioning a protein along the main chain, we also present an efficient dynamic programming algorithm that yields provably optimal results. In the general scenario our algorithms usually improve the previous approach significantly and take at most a few seconds.
description: 14 pages main part, 6 pages appendix. Published in the Proceedings of the 15th International Symposium on Experimental Algorithms (SEA 2016)
Franz Josef Schallberger, an Joseph Wolfgang von Deschwanden (1819-1866), mit Beilage betr. Wohltätigkeitslotterie zugunsten der Errichtung eines Schulhauses in Stansstad
Creators: name: Schallberger, Franz Josef
Publisher: name: [s.n.]
Year: 1858

description: Brief aus Obbürgen.
Beilage (in mehr. Ex.) : Gedruckter Aufruf an edle Schulfreunde, unterzeichnet von J. W. Akermann, Kaplan, Caspar Blättler, Gemeindepräsident, Jos. Engelberger, Ratsherr
Properties of the false vacuum as the quantum unstable state
Creators: name: Urbanowski, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze properties of unstable vacuum states from the point of view of the quantum theory. In the literature one can find some suggestions that some of false (unstable) vacuum states may survive up to times when their survival probability has a non-exponential form. At asymptotically late times the survival probability as a function of time $t$ has an inverse power--like form. We show that at this time region the energy of the false vacuum states tends to the energy of the true vacuum state as $1/t^{2}$ for $t \to \infty$. This means that the energy density in the unstable vacuum state should have analogous properties and hence the cosmological constant $Λ= Λ(t)$ too. The conclusion is that $Λ$ in the Universe with the unstable vacuum should have a form of the sum of the "bare" cosmological constant and of the term of a type $1/t^{2}$: $Λ(t) \equiv Λ_{bare} + d/ t^{2}$ (where $Λ_{bare}$ is the cosmological constant for the Universe with the true vacuum).
description: 14 pages, 2 figures, accepted for Theoretical and Mathematical Physics. arXiv admin note: substantial text overlap with arXiv:1304.2796
LEGAL FRAMEWORK FOR REGULATING ARTIFICIAL INTELLIGENCE (AI) AND SMART CONTRACTS IN NIGERIA
Creators: name: Imoisi Simon, Ejokema, PhD
name: Iyemeake, Sunday
name: Itoko Tariere, Erica
Publisher: name: ZAP Journal
Year: 2025
Subjects: Artificial Intelligence, AI, Contract, Smart Contracts.

description: A contract is simply an agreement between parties, creating mutual obligations that are enforceable by law. The advent of artificial intelligence presents a new phase in the contractual world. Today, smart contracts have become very popular internationally. In terms of traditional contracts, AI and smart contracts operate as a historical compass, giving direction with respect to a wider spectrum of their evolution. Therefore, the aim of this paper is to present a framework that facilitates a comprehensive examination of the legal implications arising from the convergence of innovation and tradition through an analysis of the conceptual landscape.
Evidences for the exciton gas phase and its condensation in monolayer 1T-ZrTe2
Creators: name: Song, Yekai
name: Jia, Chunjing
name: Xiong, Hongyu
name: Wang, Binbin
name: Jiang, Zhicheng
name: Huang, Kui
name: Hwang, Jinwoong
name: Li, Zhuojun
name: Hwang, Choongyu
name: Liu, Zhongkai
name: Shen, Dawei
name: Sobota, Jonathan
name: Kirchmann, Patrick
name: Xue, Jiamin
name: Devereaux, Thomas P.
name: Mo, Sung-Kwan
name: Shen, Zhi-Xun
name: Tang, Shujie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The excitonic insulator (EI) is a Bose-Einstein condensation (BEC) of excitons bound by electron-hole interaction in a solid, which could support high-temperature BEC transition. The material realization of EI has been elusive, which is further challenged by the difficulty of distinguishing it from a conventional charge density wave (CDW) state. In the BEC limit, the pre-condensation exciton gas phase is a hallmark to distinguish EI from conventional CDW, yet direct experimental evidence has been lacking. Here we report a distinct correlated phase beyond the $2\times2$ CDW ground state emerging in epitaxially grown monolayer 1T-ZrTe2 and its investigation by angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). The results show novel band- and energy-dependent folding behavior in a two-step process, evidenced by an exciton gas phase prior to its condensation into the final CDW state. The excellent agreement between experiments and theoretical predictions on the recovery of the pristine band structure by carrier-density-dependent suppression of the CDW state further corroborates the monolayer 1T-ZrTe2 as an EI. Our findings provide a versatile two-dimensional platform that allows tuning of the excitonic effect.
description: 22 pages, 4 figures
Entrepreneurial marketing for the international growth of niche SMEs : An exploratory study in the MENA region”
Creators: name: Bedda, Wael Eldesouki
Publisher: name: Cardiff Metropolitan University
Year: 2023
Subjects: Entrepreneurship
Small business organisation and management
Strategy
International business
Marketing management (incl. strategy and customer relations)
Marketing theory

description: Purpose – Development of SMEs in the MENA region is important for its significant contribution to employment, to GDP, and to the overall economy, for that reason this study aims at investigating the critical entrepreneurial marketing (EM) strategies for internationally oriented Small and Medium-sized Enterprises (SMEs) operating in niche markets in the Middle East and North Africa (MENA) region, and to develop a framework of practice to enhance the growth of these firms internationally. Design/methodology/approach – The researcher adopts a qualitative, exploratory approach to apply EM lens to SMEs with international orientation and (focuses) on niche markets in MENA region. Data was collected on two phases; 20 interviews were conducted with founders, cofounders, or management of SMEs operating in the MENA region in phase one, and was followed by phase two conducting 8 interviews with regional experts who have been working closely with SMEs in the region, like marketing consultants, incubators managers, mentors, or experts from international organizations who work closely with SMEs. Findings – Out of 12 Entrepreneurial marketing strategies proposed in the initial conceptual framework, 7 strategies were found out to be critical for SME’s internationalization in the region including partnerships, online marketing, utilization of networks, direct sales, followed by content creation, PR and publicity and use of referrals. Meanwhile, market selection for internationally oriented SMEs in the MENA region was done on a “trial and error” basis, some market analysis tools were concluded like digital analytical tools, google trends, desk research, and some other market attractions were considered for market selection like country regulations, market entry cost, in addition to personal network and support organizations. Originality/value –Researcher has developed a unique framework of practice that identifies a comprehensive set of EM strategies, tactics, and market selection considerations that helps the internationalization of SMEs (focusing on the MENA region is adding to the originality of this research).
Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd
Creators: name: Neupane, Madhab
name: Alidoust, Nasser
name: Hosen, M. Mofazzel
name: Zhu, Jian-Xin
name: Dimitri, Klauss
name: Xu, Su-Yang
name: Dhakal, Nagendra
name: Sankar, Raman
name: Belopolski, Ilya
name: Sanchez, Daniel S.
name: Chang, Tay-Rong
name: Jeng, Horng-Tay
name: Miyamoto, Koji
name: Okuda, Taichi
name: Lin, Hsin
name: Bansil, Arun
name: Kaczorowski, Dariusz
name: Chou, Fangcheng
name: Hasan, M. Zahid
name: Durakiewicz, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, noncentrosymmetric superconductor BiPd has attracted considerable research interest due to the possibility of hosting topological superconductivity. Here we report a systematic high-resolution angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES study of the normal state electronic and spin properties of BiPd. Our experimental results show the presence of a surface state at higher-binding energy with the location of Dirac point at around 700 meV below the Fermi level. The detailed photon energy, temperature-dependent and spin-resolved ARPES measurements complemented by our first principles calculations demonstrate the existence of the spin polarized surface states at high-binding energy. The absence of such spin-polarized surface states near the Fermi level negates the possibility of a topological superconducting behavior on the surface. Our direct experimental observation of spin-polarized surface states in BiPd provides critical information that will guide the future search for topological superconductivity in noncentrosymmetric materials.
description: 30 pages, 12 figures, Expanded version of arXiv:1505.03466, To appear in Nature Communications
AUTOMATION AND HUMAN CAPITAL DEVELOPMENT IN THE NIGERIAN OIL AND GAS INDUSTRY
Creators: name: Mbah, Christopher Nwankwo
name: Adamu, Garba Bagam
name: Mbah,, Anastasia Usoaku
Publisher: name: TOP Journal
Year: 2024
Subjects: capital development, automation, Nigerian oil and gas industry, challenges.

description: This study examined the impact of automation on human capital development within the Nigerian oil and gas industry. It specifically focused on the potential for reskilling and upskilling and the adaptability of the workforce to automation-driven changes. The study employed a descriptive survey research design, utilizing a questionnaire to collect data from a sample of 385 workers, selected from a population of 10,671 employees across three major oil and gas companies in Nigeria. The sample was determined using the Yamane Taro method, and a multi-stage sampling technique was employed to target industry experts. The findings indicate a generally positive perception of reskilling and upskilling opportunities, with an overall mean score of 4.02, which suggest that the industry is making significant efforts to equip its workforce with the necessary skills to handle automation. However, some variability in responses highlights the need for improved accessibility and structure of these programs. Regarding workforce adaptability to automation-driven changes, the overall mean score of 4.14 reflects a strong capacity to adapt, though the data reveals challenges in training effectiveness, managerial support, and the pace of technological advancements. The study concluded that while the Nigerian oil and gas industry is proactive in addressing the challenges posed by automation through reskilling and upskilling initiatives, there are areas for improvement, particularly in ensuring equitable access to these programs and enhancing support mechanisms for workers. These efforts are critical for sustaining the growth of the industry and ensuring that the workforce can fully leverage the benefits of automation
Johann Jakob Reithard (1805-1857) an Joseph Wolfgang von Deschwanden (1819-1866)
Creators: name: Reithard, Johann Jakob
Publisher: name: [s.n.]
Year: 1843

description: Brief aus Zürich, Ankündigung einer Pensions-Anstalt in Zürich und unter Angabe der früheren Tätigkeit als Schulinspektor des Kantons Glarus
Discovery of a z=0.65 Post-Starburst BAL Quasar in the DES Supernova Fields
Creators: name: Mudd, Dale
name: Martini, Paul
name: Tie, Suk Sien
name: Lidman, Chris
name: McMahon, Richard
name: Banerji, Manda
name: Davis, Tamara
name: Peterson, Bradley
name: Sharp, Rob
name: Childress, Michael
name: Lewis, Geraint
name: Tucker, Brad
name: Yuan, Fang
name: Abbot, Tim
name: Abdalla, Filipe
name: Allam, Sahar
name: Benoit-Levy, Aurelien
name: Bertin, Emmanuel
name: Brooks, David
name: Rosell, A. Camero
name: Kind, Matias Carrasco
name: Carretero, Jorge
name: da Costa, Luiz N.
name: Desai, Shantanu
name: Diehl, Thomas
name: Eifler, Tim
name: Finley, David
name: Flaugher, Brenna
name: Glazebrook, Karl
name: Gruen, Daniel
name: Gruendl, Robert
name: Gutierrez, Gaston
name: Hinton, Samuel
name: Honscheid, Klaus
name: James, David
name: Kuehn, Kyler
name: Kuropatkin, Nikolav
name: Macaulay, Edward
name: Maia, M. A. G.
name: Miquel, Ramon
name: Ogando, Ricardo
name: Plazas, Andres
name: Riel, Kevin
name: Sanchez, Eusebio
name: Santiago, Basillio
name: Schubnell, Michael
name: Sevilla-Noarbe, Ignacio
name: Smith, R. C.
name: Soares-Santos, Marcelle
name: Sobreira, Flavia
name: Suchyta, Eric
name: Swanson, Molly
name: Tarle, Gregory
name: Thomas, Daniel
name: Uddin, Syed
name: Walker, Alistair
name: Zhang, Bonnie
name: Collaboration, The DES
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the discovery of a z=0.65 low-ionization broad absorption line (LoBAL) quasar in a post-starburst galaxy in data from the Dark Energy Survey (DES) and spectroscopy from the Australian Dark Energy Survey (OzDES). LoBAL quasars are a minority of all BALs, and rarer still is that this object also exhibits broad FeII (an FeLoBAL) and Balmer absorption. This is the first BAL quasar that has signatures of recently truncated star formation, which we estimate ended about 40 Myr ago. The characteristic signatures of an FeLoBAL require high column densities, which could be explained by the emergence of a young quasar from an early, dust-enshrouded phase, or by clouds compressed by a blast wave. The age of the starburst component is comparable to estimates of the lifetime of quasars, so if we assume the quasar activity is related to the truncation of the star formation, this object is better explained by the blast wave scenario.
description: 7 pages, 4 figures, and 1 table; Submitted to MNRAS. For a brief video summarizing the paper, please see the Coffee Brief at this link: https://www.youtube.com/watch?v=jLhHSFU9u3g&feature=youtu.be Authors updated!
OH-SMArt Symposium 2023 DANS Data Infrastructuur & Deponeren van Oral History Data
Creators: name: Touber, Jetze
name: Mahabier, Widia
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2023
Subjects: subject: Humanities
subject: FOS: Humanities
subject: Information and Computing Sciences
subject: Language, Communication and Culture
subject: Museology

description: Dutch language presentation about the data infrastructure of Data Archiving and Networked Services (DANS) and the deposition of Oral History research data in the DANS repository. Presented at the OH-SMArt symposium that took place on 19 April 2023 in De Pont, Tilburg, the Netherlands. Oral History – Stories at the Museum around Artworks (OH-SMArt) is a long term initiative to significantly improve the digital research chain around using Oral History and spoken narratives, with research into artworks and museums as a use case.
Early Growing Supermassive Black Holes Do Not Weaken Bars
Creators: name: Valluri, Monica
name: Wheeler, Vance
name: Beraldo e Silva, Leandro
name: Dattathri, Shashank
name: Debattista, Victor P.
Publisher: name: Zenodo
Year: 2023
Subjects: galactic bars, supermassive blackholes, boxy/peanut bulges, N-body simulations

description: Slides of online talk presented at "Galactic bars: driving and decoding galaxy evolution" 3 - 7 July, 2023
description: MV gratefully acknowledges funding from the US National Science Foundation (grants NSF-AST-1515001, NSF-AST-2009122) and the Space Telescope Science Institute (grant JWST- ERS-01364.002-A).
A scattering theory approach to Cauchy horizon instability and applications to mass inflation
Creators: name: Luk, Jonathan
name: Oh, Sung-Jin
name: Shlapentokh-Rothman, Yakov
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Motivated by the strong cosmic censorship conjecture, we study the linear scalar wave equation in the interior of subextremal strictly charged Reissner-Nordström black holes by analyzing a suitably-defined "scattering map" at $0$ frequency. The method can already be demonstrated in the case of spherically symmetric scalar waves on Reissner-Nordström: we show that assuming suitable ($L^2$-averaged) upper and lower bounds on the event horizon, one can prove ($L^2$-averaged) polynomial lower bound for the solution (1) on any radial null hypersurface transversally intersecting the Cauchy horizon, and (2) along the Cauchy horizon towards timelike infinity. Taken together with known results regarding solutions to the wave equation in the exterior, (1) above in particular provides yet another proof of the linear instability of the Reissner-Nordström Cauchy horizon. As an application of (2) above, we prove a conditional mass inflation result for a nonlinear system, namely, the Einstein-Maxwell-(real)-scalar field system in spherical symmetry. For this model, it is known that for a generic class of Cauchy data $\mathcal G$, the maximal globally hyperbolic future developments are $C^2$-future-inextendible. We prove that if a (conjectural) improved decay result holds in the exterior region, then for the maximal globally hyperbolic developments arising from initial data in $\mathcal G$, the Hawking mass blows up identically on the Cauchy horizon.
description: 34 pages, 2 figures; minor revisions
Spin structures of textured and isotropic Nd-Fe-B-based nanocomposites: Evidence for correlated crystallographic and spin texture
Creators: name: Michels, Andreas
name: Weber, Raoul
name: Titov, Ivan
name: Mettus, Denis
name: Périgo, Élio Alberto
name: Peral, Inma
name: Vallcorba, Oriol
name: Kohlbrecher, Joachim
name: Suzuki, Kiyonori
name: Ito, Masaaki
name: Kato, Akira
name: Yano, Masao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the results of a comparative study of the magnetic microstructure of textured and isotropic $\mathrm{Nd}_2\mathrm{Fe}_{14}\mathrm{B}/α$-$\mathrm{Fe}$ nanocomposites using magnetometry, transmission electron microscopy, synchrotron x-ray diffraction, and, in particular, magnetic small-angle neutron scattering (SANS). Analysis of the magnetic neutron data of the textured specimen and computation of the correlation function of the spin misalignment SANS cross section suggests the existence of inhomogeneously magnetized regions on an intraparticle nanometer length scale, about $40-50 \, \mathrm{nm}$ in the remanent state. Possible origins for this spin disorder are discussed: it may originate in thin grain-boundary layers (where the materials parameters are different than in the $\mathrm{Nd}_2\mathrm{Fe}_{14}\mathrm{B}$ grains), or it may reflect the presence of crystal defects (introduced via hot pressing), or the dispersion in the orientation distribution of the magnetocrystalline anisotropy axes of the $\mathrm{Nd}_2\mathrm{Fe}_{14}\mathrm{B}$ grains. X-ray powder diffraction data reveal a crystallographic texture in the direction perpendicular to the pressing direction -- a finding which might be related to the presence of a texture in the magnetization distribution, as inferred from the magnetic SANS data.
SALES PROMOTIONS AS A CATALYST: ANALYZING THEIR INFLUENCE ON CONSUMER PURCHASE INTENT IN NIGERIAN BREWERIES, ENUGU, NIGERIA
Creators: name: Abude, Peter
name: Ebizie, Promise Ikechukwu
Publisher: name: TOP Journal
Year: 2024
Subjects: Sales promotion strategies, Contest, Price off and Consumers' intention

description: The study examined the influence of sales promotion strategies on consumers’ intention to purchase Nigerian Breweries product.  Specifically, the study sought to: ascertained the influence of contest on consumers’ intention to purchase Nigerian Breweries products in Enugu, Nigeria, and determine the influence of price off on consumers’ intention to purchase coca cola product in Enugu State, Nigeria. Descriptive research design was adopted in this study. The population of the study comprises of consumers of Nigerian Breweries products in Enugu State. The data generated was analyzed using simple percentage and frequency tables. Linear multiple regression analysis was employed to test the hypotheses. This was done with the help of Statistical Package for Social Sciences (SPSS) version 20. 0. The study showed that sales contest and Prize-off have a significant effect on consumers’ intention to purchase Nigerian Breweries product. Based on the findings of this study, the study recommended that among others that Nigerian Breweries should make sure that sales contest is free and fair contest in other to increase customers’ intention to purchase
Shock persistence in economic time series : an empirical investigation
Creators: name: Mayadunne, Geetha.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The SLC26A9 inhibitor S9‐A13 provides no evidence for a role of SLC26A9 in airway chloride secretion but suggests a contribution to regulation of ASL pH and gastric proton secretion
Creators: name: Jo, Sungwoo
name: Centeio, Raquel
name: Park, Jinhong
name: Ousingsawat, Jiraporn
name: Jeon, Dong‐kyu
name: Talbi, Khaoula
name: Schreiber, Rainer
name: Ryu, Kunhi
name: Kahlenberg, Kristin
name: Somoza, Veronika
name: Delpiano, Livia
name: Gray, Michael A.
name: Amaral, Margarida D.
name: Railean, Violeta
name: Beekman, Jeffrey M.
name: Rodenburg, Lisa W.
name: Namkung, Wan
name: Kunzelmann, Karl
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: airways, asthma, Cl− secretion, cystic fibrosis, pH regulation, S9-A13, SLC26A9
subject: 570 Biowissenschaften, Biologie

description: The solute carrier 26 family member A9 (SLC26A9) is an epithelial anion transporter that is assumed to contribute to airway chloride secretion and surface hydration. Whether SLC26A9 or CFTR is responsible for airway Cl− transport under basal conditions is still unclear, due to the lack of a specific inhibitor for SLC26A9. In the present study, we report a novel potent and specific inhibitor for SLC26A9, identified by screening of a drug-like molecule library and subsequent chemical modifications. The most potent compound S9-A13 inhibited SLC26A9 with an IC50 of 90.9 ± 13.4 nM. S9-A13 did not inhibit other members of the SLC26 family and had no effects on Cl− channels such as CFTR, TMEM16A, or VRAC. S9-A13 inhibited SLC26A9 Cl− currents in cells that lack expression of CFTR. It also inhibited proton secretion by HGT-1 human gastric cells. In contrast, S9-A13 had minimal effects on ion transport in human airway epithelia and mouse trachea, despite clear expression of SLC26A9 in the apical membrane of ciliated cells. In both tissues, basal and stimulated Cl− secretion was due to CFTR, while acidification of airway surface liquid by S9-A13 suggests a role of SLC26A9 for airway bicarbonate secretion.
OH-SMArt Symposium 2023 Stappenplan voor Musea
Creators: name: Wolfkamp, Laura
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2023
Subjects: subject: Humanities
subject: FOS: Humanities
subject: Information and Computing Sciences
subject: Language, Communication and Culture
subject: Museology

description: Dutch language presentation of a step-by-step plan for Oral History interviews about artworks in museums and cultural heritage institutions. Presented at the OH-SMArt symposium that took place on 19 April 2023 in De Pont, Tilburg, the Netherlands. Oral History – Stories at the Museum around Artworks (OH-SMArt) is a long term initiative to significantly improve the digital research chain around using Oral History and spoken narratives, with research into artworks and museums as a use case.
Supplementary Information from Free energy dissipation enhances spatial accuracy and robustness of self-positioned Turing pattern in small biochemical systems
Creators: name: Zhang, Dongliang
name: Zhang, Chenghao
name: Ouyang, Qi
name: Tu, Yuhai
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
classificationCode: 60104
subject: Cell Metabolism
classificationCode: 60199
subject: Biochemistry and Cell Biology not elsewhere classified
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary text and figures
Entropic multi-relaxation-time lattice Boltzmann model for large density ratio two-phase flows
Creators: name: Hosseini, S. A.
name: Dorschner, B.
name: Karlin, I. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We propose a multiple relaxation time entropic realization of a two-phase flow lattice Boltzmann model we introduced in earlier works arXiv:2112.01975 S.A. Hosseini, B. Dorschner, and I. V. Karlin, arXiv preprint, arXiv:2112.01975 (2021). While the original model with a single relaxation time allows us to reach large density ratios, it is limited in terms of stability with respect to non-dimensional viscosity and Courant--Friedrichs--Lewy number. Here we show that the entropic multiple relaxation time model extends the stability limits of the model significantly, which allows us to reach larger Reynolds numbers for a given grid resolution. The thermodynamic properties of the solver, using the Peng--Robinson equation of state, are studied first using simple configurations. Co-existence densities and temperature scaling of both the interface thickness and the surface tension are shown to agree well with theory. The model is then used to simulate the impact of a drop onto a thin liquid film with density and viscosity ratios matching those of water and air both in 2-D and 3-D. The results are in very good agreement with theoretically predicted scaling laws and experimental data.
The 2-degree Field Lensing Survey: design and clustering measurements
Creators: name: Blake, Chris
name: Amon, Alexandra
name: Childress, Michael
name: Erben, Thomas
name: Glazebrook, Karl
name: Harnois-Deraps, Joachim
name: Heymans, Catherine
name: Hildebrandt, Hendrik
name: Hinton, Samuel R.
name: Janssens, Steven
name: Johnson, Andrew
name: Joudaki, Shahab
name: Klaes, Dominik
name: Kuijken, Konrad
name: Lidman, Chris
name: Marin, Felipe A.
name: Parkinson, David
name: Poole, Gregory B.
name: Wolf, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is the first wide-area spectroscopic survey specifically targeting the area mapped by deep-imaging gravitational lensing fields, in this case the Kilo-Degree Survey. 2dFLenS obtained 70,079 redshifts in the range z < 0.9 over an area of 731 sq deg, and is designed to extend the datasets available for testing gravitational physics and promote the development of relevant algorithms for joint imaging and spectroscopic analysis. The redshift sample consists first of 40,531 Luminous Red Galaxies (LRGs), which enable analyses of galaxy-galaxy lensing, redshift-space distortion, and the overlapping source redshift distribution by cross-correlation. An additional 28,269 redshifts form a magnitude-limited (r < 19.5) nearly-complete sub-sample, allowing direct source classification and photometric-redshift calibration. In this paper, we describe the motivation, target selection, spectroscopic observations, and clustering analysis of 2dFLenS. We use power spectrum multipole measurements to fit the redshift-space distortion parameter of the LRG sample in two redshift ranges 0.15 < z < 0.43 and 0.43 < z < 0.7 as beta = 0.49 +/- 0.15 and beta = 0.26 +/- 0.09, respectively. These values are consistent with those obtained from LRGs in the Baryon Oscillation Spectroscopic Survey. 2dFLenS data products will be released via our website http://2dflens.swin.edu.au.
description: 28 pages, 21 figures, accepted for publication by MNRAS
Learning Stochastic Graph Neural Networks with Constrained Variance
Creators: name: Gao, Zhan
name: Isufi, Elvin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Stochastic graph neural networks (SGNNs) are information processing architectures that learn representations from data over random graphs. SGNNs are trained with respect to the expected performance, which comes with no guarantee about deviations of particular output realizations around the optimal expectation. To overcome this issue, we propose a variance-constrained optimization problem for SGNNs, balancing the expected performance and the stochastic deviation. An alternating primal-dual learning procedure is undertaken that solves the problem by updating the SGNN parameters with gradient descent and the dual variable with gradient ascent. To characterize the explicit effect of the variance-constrained learning, we conduct a theoretical analysis on the variance of the SGNN output and identify a trade-off between the stochastic robustness and the discrimination power. We further analyze the duality gap of the variance-constrained optimization problem and the converging behavior of the primal-dual learning procedure. The former indicates the optimality loss induced by the dual transformation and the latter characterizes the limiting error of the iterative algorithm, both of which guarantee the performance of the variance-constrained learning. Through numerical simulations, we corroborate our theoretical findings and observe a strong expected performance with a controllable standard deviation.
A study on the effects of feedback on the relationship between perceptions of performance, ability and effort
Creators: name: Robertson, Susan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
OH-SMArt Symposium 2023 Conclusion
Creators: name: Stigter, Sanneke
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2023
Subjects: subject: Humanities
subject: FOS: Humanities
subject: Information and Computing Sciences
subject: Language, Communication and Culture
subject: Museology

description: Conclusion of the OH-SMArt symposium that took place on 19 April 2023 in De Pont, Tilburg, the Netherlands. Oral History – Stories at the Museum around Artworks (OH-SMArt) is a long term initiative to significantly improve the digital research chain around using Oral History and spoken narratives, with research into artworks and museums as a use case.
Introduction to Data Analysis
Creators: name: Lacey, Seán
Publisher: name: Zenodo
Year: 2023
Subjects: Data analysis
Descriptive statistics
Statistical inference

description: Presentation by Seán Lacey at the Academy of Clinical Science and Laboratory Medicine, Research Workshop for Health and Social Care Professionals, September 2023. The workshop is an output from SLÁINTE - Strategic Launch of research resources And Infrastructure for Novel clinical decision support Tools and data analytics Expertise, funded by the Irish Higher Education Authority through Munster Technological University's Technological University Transformation Fund.
Charge density wave with meronlike spin texture induced by a lateral superlattice in a two-dimensional electron gas
Creators: name: Côté, R.
name: Bazier-Matte, Xavier
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The combined effect of a lateral square superlattice potential and the Coulomb interaction on the ground state of a two-dimensional electron gas in a perpendicular magnetic field is studied for different rational values of $Γ$, the inverse of the number of flux quanta per unit cell of the external potential, at filling factor $ν=1$ in Landau level $N=0.$ When Landau level mixing and disorder effects are neglected, increasing the strength $W_{0}$ of the potential induces a transition, at a critical strength $W_{0}^{\left( c\right) },$ from a uniform and fully spin polarized state to a two-dimensional charge density wave (CDW) with a meronlike spin texture at each maximum and minimum of the CDW. The collective excitations of this vortex-CDW are similar to those of the Skyrme crystal that is expected to be the ground state near filling factor $ν=1$. In particular, a broken U(1) symmetry in the vortex-CDW results in an extra gapless phase mode that could provide a fast channel for the relaxation of nuclear spins. The average spin polarization $% S_{z}$ changes in a continuous or discontinuous manner as $W_{0}$ is increased depending on whether $Γ\in \left[ 1/2,1\right] $ or $Γ\in \left[ 0,1/2\right] .$ The phase mode and the meronlike spin texture disappear at large value of $W_{0},$ leaving as the ground state a partially spin-polarized CDW if $Γ\neq 1/2$ or a spin-unpolarized CDW if $Γ=1/2.$
description: 11 pages with 9 eps figures
Libraries' Metadata as Data in the Era of the Semantic Web: Modeling a Repository of Master Theses and PhD Dissertations for the Web of Data
Creators: name: Peponakis, Manolis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: This study argues that metadata of library catalogs can stand autonomously, providing valuable information detached from the resources they point to and, therefore, could be used as data in the context of the Semantic Web. We present an analysis of this perception followed by an implementation proposal for a Master's thesis and PhD dissertation repository. The analysis builds on the flexibility of the Resource Description Framework (RDF) and takes into account the Functional Requirements for Bibliographic Records (FRBR) and Functional Requirements for Authority Data (FRAD) in order to reveal the latent academic network by linking its entities to a meaningful and computationally processable set. Current library catalogs retrieve documents to find answers, whereas in our approach catalogs can provide answers that could not be found in any specific document.
description: 16 pages, 2 figures