cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Structure of Periodic Eigenvalues of the Vectorial $p$-Laplacian
Creators: name: Liu, Changjian
name: Zhang, Meirong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34L30, 70H03, 58E05, 35B38, 70H06, 34C14, 70G60

description: In this paper we will solve an open problem raised by Manásevich and Mawhin twenty years ago on the structure of the periodic eigenvalues of the vectorial $p$-Laplacian. This is an Euler-Lagrangian equation on the plane or in higher dimensional Euclidean spaces. The main result obtained is that for any exponent $p$ other than $2$, the vectorial $p$-Laplacian on the plane will admit infinitely many different sequences of periodic eigenvalues with a given period. These sequences of eigenvalues are constructed using the notion of scaling momenta we will introduce. The whole proof is based on the complete integrability of the equivalent Hamiltonian system, the tricky reduction to $2$-dimensional dynamical systems, and a number-theoretical distinguishing between different sequences of eigenvalues. Some numerical simulations to the new sequences of eigenvalues and eigenfunctions will be given. Several further conjectures towards to the panorama of the spectral sets will be imposed.
description: 35 pages, 10 figures
Time for Reflection? Considering the "Past", "Present" and "Future" of Feminist Legal Scholarship: A Roundtable Discussion
Creators: name: Bhandar, Brenna
name: Chryssostalis, Julia
name: Loizidou, Elena
name: Richardson, Janice
Publisher: name: feminists@law
Year: 2011

description: In his "Theses On the Philosophy of History" (1940), Walter Benjamin called for a blasting open of the continuum of history. His call was one that would bring into question teleological narratives of progress, and urge a radical rethinking of the concept of the “present”. Similarly, Judith Jack Halberstam considers the ability of new temporal logics to “open up new life narratives and alternative relations to time and space” (2005). Though differently conceptualised, these insights from Benjamin and Halberstam make poignant interventions on the pitfalls of unreflective time, and the political possibilities of imagining a new temporality. What do such insights mean for feminist legal studies? Has an orientation towards a "future" feminist ideal been productive in feminist legal scholarship and activism? How does your own work engage with temporality? Does a reconceptualization of time offer any insight for your work, or for feminist legal projects more generally? Discussion of these questions intends to interrogate what is often taken for granted as "progress" within the field, and to consider the benefits and drawbacks of thinking feminist research and activism inside or outside (or indeed of deploying this dualism in the first place) the domain of chronological time. This Roundtable Discussion was recorded at the PECANS (Postgraduate and Early Career Academics Network) conference, 'Transgressing Power(s)', held at the University of Westminster, UK, on 30 April 2010. It was organised by Stacy Douglas and chaired by Sarah Keenan.
description: feminists@law, Vol 1 No 1 (2011)
A pilot project to explore methods for improving student engagement in undergraduate entrepreneurship courses
Creators: name: Balan, Peter
Publisher: name: Swinburne
Year: 2024

description: Research into student engagement provides the basis for a novel method for mapping teaching methods to develop entrepreneurship courses that optimise student engagement. The entrepreneurship education literature identifies a very wide range of 'desirable' teaching methods and activities, but does not provide practical guidelines for selecting the ones that are appropriate for particular teaching contexts. This paper describes a pilot project to help educators assess potential teaching methods against available student engagement data in order to select and then develop methods that are most likely to result in higher levels of student engagement, and hence in improved learning effectiveness, in their particular teaching context.
Wavefield reconstruction inversion via physics-informed neural networks
Creators: name: Song, Chao
name: Alkhalifah, Tariq
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Wavefield reconstruction inversion (WRI) formulates a PDE-constrained optimization problem to reduce cycle skipping in full-waveform inversion (FWI). WRI often requires expensive matrix inversions to reconstruct frequency-domain wavefields. Physics-informed neural network (PINN) uses the underlying physical laws as loss functions to train the neural network (NN), and it has shown its effectiveness in solving the Helmholtz equation and generating Green's functions, specifically for the scattered wavefield. By including a data-constrained term in the loss function, the trained NN can reconstruct a wavefield that simultaneously fits the recorded data and satisfies the Helmholtz equation for a given initial velocity model. Using the predicted wavefields, we rely on a small-size NN to predict the velocity using the reconstructed wavefield. In this velocity prediction NN, spatial coordinates are used as input data to the network and the scattered Helmholtz equation is used to define the loss function. After we train this network, we are able to predict the velocity in the domain of interest. We develop this PINN-based WRI method and demonstrate its potential using a part of the Sigsbee2A model and a modified Marmousi model. The results show that the PINN-based WRI is able to invert for a reasonable velocity with very limited iterations and frequencies, which can be used in a subsequent FWI application.
Hole probability for noninteracting fermions in a $d$-dimensional trap
Creators: name: Gouraud, Gabriel
name: Doussal, Pierre Le
name: Schehr, Gregory
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The hole probability, i.e., the probability that a region is void of particles, is a benchmark of correlations in many body systems. We compute analytically this probability $P(R)$ for a spherical region of radius $R$ in the case of $N$ noninteracting fermions in their ground state in a $d$-dimensional trapping potential. Using a connection to the Laguerre-Wishart ensembles of random matrices, we show that, for large $N$ and in the bulk of the Fermi gas, $P(R)$ is described by a universal scaling function of $k_F R$, for which we obtain an exact formula ($k_F$ being the local Fermi wave-vector). It exhibits a super exponential tail $P(R)\propto e^{- κ_d (k_F R)^{d+1}}$ where $κ_d$ is a universal amplitude, in good agreement with existing numerical simulations. When $R$ is of the order of the radius of the Fermi gas, the hole probability is described by a large deviation form which is not universal and which we compute exactly for the harmonic potential. Similar results also hold in momentum space.
description: Main text: 6 pages, 1 figure Supp mat: 15 pages, 6 figures
Development and preliminary user testing of the DCIDA (Dynamic computer interactive decision application) for ‘nudging’ patients towards high quality decisions
Creators: name: Bansback, Nick
name: Li, Linda C.
name: Lynd, Larry
name: Bryan, Stirling
Publisher: name: BioMed Central
Year: 2016

description: Background: Patient decision aids (PtDA) are developed to facilitate informed, value-based decisions about health. Research suggests that even when informed with necessary evidence and information, cognitive errors can prevent patients from choosing the option that is most congruent with their own values. We sought to utilize principles of behavioural economics to develop a computer application that presents information from conventional decision aids in a way that reduces these errors, subsequently promoting higher quality decisions. Method: The Dynamic Computer Interactive Decision Application (DCIDA) was developed to target four common errors that can impede quality decision making with PtDAs: unstable values, order effects, overweighting of rare events, and information overload. Healthy volunteers were recruited to an interview to use three PtDAs converted to the DCIDA on a computer equipped with an eye tracker. Participants were first used a conventional PtDA, and then subsequently used the DCIDA version. User testing was assessed based on whether respondents found the software both usable: evaluated using a) eye-tracking, b) the system usability scale, and c) user verbal responses from a ‘think aloud’ protocol; and useful: evaluated using a) eye-tracking, b) whether preferences for options were changed, and c) and the decisional conflict scale. Results: Of the 20 participants recruited to the study, 11 were male (55%), the mean age was 35, 18 had at least a high school education (90%), and 8 (40%) had a college or university degree. Eye-tracking results, alongside a mean system usability scale score of 73 (range 68–85), indicated a reasonable degree of usability for the DCIDA. The think aloud study suggested areas for further improvement. The DCIDA also appeared to be useful to participants wherein subjects focused more on the features of the decision that were most important to them (21% increase in time spent focusing on the most important feature). Seven subjects (25%) changed their preferred option when using DCIDA. Conclusion: Preliminary results suggest that DCIDA has potential to improve the quality of patient decision-making. Next steps include larger studies to test individual components of DCIDA and feasibility testing with patients making real decisions.
$b\to s\ell\ell$ Global Fits after $R_{K_S}$ and $R_{K^{*+}}$
Creators: name: Algueró, Marcel
name: Capdevila, Bernat
name: Descotes-Genon, Sébastien
name: Matias, Joaquim
name: Novoa-Brunet, Martín
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present an up-to-date complete model-independent global fit to $b\to s\ell^+\ell^-$ observables that confirms patterns of New Physics able to explain the data. We include the recent LHCb measurements of $R_K$, $R_{K_S}$, $R_{K^{*+}}$, $B_s \to ϕμ^+μ^-$ and $B_s\toμμ$ in our analysis, which now includes 254 observables. This updates our previous analyses and strengthens their two main outcomes. First, the presence of right-handed couplings encoded in the Wilson coefficients $\mathcal{C}_{9'μ}$ and $\mathcal{C}_{10'μ}$ remains a viable possibility. Second, a lepton flavour universality violating (LFUV) left-handed lepton coupling ($\mathcal{C}_{9μ}^{\rm V}=-\mathcal{C}_{10μ}^{\rm V}$), often preferred from the model building point of view, accommodates the data better if lepton-flavour universal New Physics is allowed, in particular in $\mathcal{C}_{9}^{\rm U}$. We observe that the LFUV observable $Q_5$ offers a very interesting possibility to separate both types of scenarios.
description: Version accepted for publication in EPJC, extended to include SM predictions for all observables in the fits and additional references
About the Landau-Fermi-Dirac equation with moderately soft potentials
Creators: name: Alonso, Ricardo
name: Bagland, Véronique
name: Desvillettes, Laurent
name: Lods, Bertrand
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We present in this document some essential properties of solutions to the homogeneous Landau-Fermi-Dirac equation for moderately soft potentials. Uniform in time estimates for statistical moments, $L^{p}$-norm generation and Sobolev regularity are shown using a combination of techniques that include recent developments concerning level set analysis in the spirit of De Giorgi and refined entropy-entropy dissipation functional inequalities for the Landau collision operator which are extended to the case in question here. As a consequence of the analysis, we prove algebraic relaxation of non degenerate distributions towards the Fermi-Dirac statistics under a weak non saturation condition for the initial datum. All quantitative estimates are uniform with respect to the quantum parameter. They therefore also hold for the classical limit, that is the Landau equation.
The Role of Social Security Performance in Accordance with Gharavasadhamma of The Personnel of The Bangkok Social Security Office
Creators: name: Kajohnyot Nopmaneewan
Publisher: name: DR.KET INSTITUTE OF ACADEMIC DEVELOPMENT AND PROMOTION
Year: 2024
Subjects: Work Performance
Gharavasadhamma
Social Security Office

description: Journal of Interdisciplinary Social Development, 2, 4, 1-12
Decide: Knowledge-Based Version Incompatibility Detection in Deep Learning Stacks
Creators: name: Zhou, Zihan
name: Zhao, Zhongkai
name: Kou, Bonan
name: Zhang, Tianyi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Version incompatibility issues are prevalent when reusing or reproducing deep learning (DL) models and applications. Compared with official API documentation, which is often incomplete or out-of-date, Stack Overflow (SO) discussions possess a wealth of version knowledge that has not been explored by previous approaches. To bridge this gap, we present Decide, a web-based visualization of a knowledge graph that contains 2,376 version knowledge extracted from SO discussions. As an interactive tool, Decide allows users to easily check whether two libraries are compatible and explore compatibility knowledge of certain DL stack components with or without the version specified. A video demonstrating the usage of Decide is available at https://youtu.be/wqPxF2ZaZo0.
Cosmology with variable $G$ and nonlinear electrodynamics
Creators: name: Joseph, Gabriel W.
name: Övgün, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a bid to resolve lingering problems in cosmology, more focus is being tilted towards cosmological models in which physical constants of nature are not necessarily real constants but vary with cosmic time. In this paper, we study a cosmological model in nonlinear electrodynamics with Newton's gravitational constant $G$, which is not a constant but varies in terms of a power law of the scale factor of the universe. Hence, the evolution of the scale factor $a(t)$ is studied in this model, which depends on a fine-tuning term of nonlinear electrodynamics, $α$. Finally, we verify the stability of the model using the speed of sound.
description: 6 pages, Accepted for publication in Indian Journal of Physics
Judging in the Presence of Women as Legal Persons – Feminist alternative to the Indian Supreme Court Judgment in Sakshi v. Union of India
Creators: name: Mukherjee, Madhumanti
Publisher: name: feminists@law
Year: 2011

description: In this paper I will present a feminist alternative to the Supreme Court of India’s judgment in the case of Sakshi v. Union of India AIR 2004 SC 3566. The purpose of this exercise inspired by the Feminist Judgments Project in the UK and elsewhere, is to implement feminist theory in judicial practice and to provide an alternative to the supposedly ‘universal’ voice of judicial authority. In 1997 Sakshi, a sexual violence intervention and victim support organisation, through a writ petition asked the Supreme Court of India to broaden the definition of rape by judicial re-interpretation to include all kinds of penetrative sexual violence against women. The petition argued that the narrow definition of rape as only vaginal-penile violates the fundamental rights of women who endure ‘other’ kinds of non-consensual sexual penetration. After a long deliberation, in 2004 the petition was dismissed by the Court. I have chosen to write an alternative to this particular judgment because its inadequacies affect women’s lives profoundly in relation to sexual violence and rape.
description: feminists@law, Vol 1 No 2 (2011)
Government Under Sangahavatthu Of The Officials In Rajamanggala University Of Technology Rattannkosin Phuttamonthin District Nakhonpathom Provinec
Creators: name: Kanokporn  Wimontrakul
Publisher: name: DR.KET INSTITUTE OF ACADEMIC DEVELOPMENT AND PROMOTION
Year: 2024
Subjects: Governance, Sangagahawat 4
Officials In Rajamanggala University of Technology Rattannkosin

description: Journal of Interdisciplinary Social Development, 2, 4, 13-27
Introduction: Diminishing Returns? Feminist Engagements with the Return to "the Commons"
Creators: name: Douglas, Stacy
Publisher: name: feminists@law
Year: 2012

description: Recently, there has been a resurgence in political theory and political philosophy addressing the concept of “the commons”. Some of the most popularly cited references to the idea can be found in the work of Slavoj Žižek (2009) and Hardt and Negri (2009). The past century has also seen vast and varied critical feminist engagements with historically changing concepts of communism and “the commons”. Struggles for universal suffrage, critiques of universality, denouncements of the hollowing out of the welfare state as a result of neoliberalisation, and challenges to the concept of the human, are all examples of a rich and diverse feminist tradition of engagement with the concept of “the commons”. Given the popular return to the idea of the commons, what more does feminist analysis have to give to this conversation? The following papers arise from a workshop held in March 2011, hosted by the Kent Centre for Law, Gender, and Sexuality and Kent Law School, to explore this question.
description: feminists@law, Vol 1 No 2 (2011)
Discrete Painlevé transcendent solutions to the multiplicative type discrete KdV equations
Creators: name: Nakazono, Nobutaka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Hirota's discrete KdV equation is an integrable partial difference equation on $\mathbb{Z}^2$, which approaches the Korteweg-de Vries (KdV) equation in a continuum limit. In this paper, we show that its multiplicative-discrete versions have the special solutions given by the solutions of $q$-Painlevé equations of types $A_J^{(1)}$ $(J=3,4,5,6)$.
description: 17 pages
Calculating the Green's function of two-site Fermionic Hubbard model in a photonic system
Creators: name: Zhu, Jie
name: Nakagawa, Yuya O.
name: Li, Chuan-Feng
name: Guo, Guang-Can
name: Zhang, Yong-Sheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Green's function has been an indispensable tool to study many-body systems that remain one of the biggest challenges in modern quantum physics for decades. The complicated calculation of Green's function impedes the research of many-body systems. The appearance of the noisy intermediate-scale quantum devices and quantum-classical hybrid algorithm inspire a new method to calculate Green's function. Here we design a programmable quantum circuit for photons with utilizing the polarization and the path degrees of freedom to construct a highly-precise variational quantum state of a photon, and first report the experimental realization for calculating the Green's function of the two-site Fermionic Hubbard model, a prototypical model for strongly-correlated materials, in photonic systems. We run the variational quantum eigensolver to obtain the ground state and excited states of the model, and then evaluate the transition amplitudes among the eigenstates. The experimental results present the spectral function of Green's function, which agrees well with the exact results. Our demonstration provides the further possibility of the photonic system in quantum simulation and applications in solving complicated problems in many-body systems, biological science, and so on.
description: 6 pages, 2 figures
The New Communists of the Commons: 21st Century Proudhonists
Creators: name: Desai, Radhika
Publisher: name: feminists@law
Year: 2012

description: If Proudhonism in the 19th century was, as Marx argued, a petty bourgeois ideology, this paper argues that the new communism of the commons propounded by Badiou, Hardt and Negri and Žižek is a 21st century avatar of it. It speaks not for what Poulantzas called the ‘traditional petty bourgeoisie’, as Proudhon did, but for the ‘new petty bourgeoisie’ of ‘non-productive wage-earners’, which has also lately styled itself the ‘creative class.’ A failure to comprehend the dynamics of capitalist accumulation and a general antipathy to any general organization of labour in society, and thus to any serious politics, are common to both. In addition, the paper shows that the protection of the cultural commons, the core of the project, is but a programme aiming for the continued reproduction of the creative class within capitalism. It is also prey to a series of misunderstandings - of the concept of the commons itself, of contemporary capitalism whose dynamics forms the backdrop of their project and key economic and political ideas of Marx whose authority they seek to attach to their project. This is a pre-print of an article published in the journal International Critical Thought (c) 2011 Chinese Academy of Social Sciences. The article is available online at: http://www.tandfonline.com/doi/abs/10.1080/21598282.2011.584163
description: feminists@law, Vol 1 No 2 (2011)
Absence of a boson peak in anharmonic phonon models with Akhiezer-type damping
Creators: name: Shvaika, A.
name: Shpot, M.
name: Schirmacher, W.
name: Bryk, T.
name: Ruocco, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In a recent article M. Baggioli and A. Zaccone (Phys. Rev. Lett. {\bf 112}, 145501 (2019)) claimed that an anharmonic damping, leading to a sound attenuation proportional to $ω^2$ (Akhiezer-type damping) would imply a boson peak, i.e.\ a maximum in the vibrational density of states, divided by the frequency squared (reduced density of states). This would apply both to glasses and crystals.Here we show that this is not the case. In a mathematically correct treatment of the model the reduced density of states monotonously decreases, i.e.\ there is no boson peak. We further show that the formula for the would-be boson peak, presented by the authors, corresponds to a very short one-dimensional damped oscillator system. The peaks they show correspond to resonances, which vanish in the thermodynamic limit.
description: 3 pages, 2 figures
Brain-inspired computing: We need a master plan
Creators: name: Mehonic, Adnan
name: Kenyon, Anthony J
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: Artificial Intelligence (cs.AI)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: New computing technologies inspired by the brain promise fundamentally different ways to process information with extreme energy efficiency and the ability to handle the avalanche of unstructured and noisy data that we are generating at an ever-increasing rate. To realise this promise requires a brave and coordinated plan to bring together disparate research communities and to provide them with the funding, focus and support needed. We have done this in the past with digital technologies; we are in the process of doing it with quantum technologies; can we now do it for brain-inspired computing?
description: 9 oages 4 figures. Perspectives commentary
The relationship between mind-wandering, meta-awareness, and ADHD symptomatology
Creators: name: Franklin, M. S.
name: Mrazek, M. M.
name: Anderson, C. L.
name: Johnston, Charlotte
name: Smallwood, J.
name: Kingstone, A.
name: Schooler, J. W.
Publisher: name: The University of British Columbia
Year: 2016

description: Although earlier work has shown a link between mind-wandering and attention-deficit/hyperactivity disorder (ADHD) symptoms, this relationship has not been further investigated by taking into account recent advances in mind-wandering research. The present study provides a comprehensive assessment of the relationship between mind-wandering and ADHD symptomatology in an adult community sample (N=105, 71 female, mean age=23.1) using laboratory measures and experience sampling during daily-life. Mind-wandering and detrimental mind-wandering were positively associated with ADHD symptoms. Meta-awareness of mind-wandering mediated the relationship between ADHD symptomatology and detrimental mind-wandering, suggesting that some of the negative consequences can be ameliorated by strategies that facilitate meta-awareness. Interestingly, participants with low ADHD scores showed a positive relationship between detrimental mind-wandering and useful mind-wandering; however, participants with high ADHD scores failed to engage in this type of 'strategic' mind-wandering. These results provide new insights into the relationship between ADHD symptomatology and mind-wandering that could have important clinical implications.
Letter from Australia to Britain: trading in human misery: immigration and the 'Malaysian solution'
Creators: name: Briskman, Linda
Publisher: name: Swinburne
Year: 2024

description: The UK and Australia share some undesirable features. This is nowhere clearer than how we treat those we wish to banish from our countries, particularly through the cruel use of immigration detention. It matters little how much evidence is presented in both countries about the harm this causes both to people and to the reputation of the nations. In Australia detention policies and practices are enshrined within a 'stop the boats' paradigm to deter people from coming and to deny the human rights afforded to others.
Calibration-Disentangled Learning and Relevance-Prioritized Reranking for Calibrated Sequential Recommendation
Creators: name: Jeon, Hyunsik
name: Yoon, Se-eun
name: McAuley, Julian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Calibrated recommendation, which aims to maintain personalized proportions of categories within recommendations, is crucial in practical scenarios since it enhances user satisfaction by reflecting diverse interests. However, achieving calibration in a sequential setting (i.e., calibrated sequential recommendation) is challenging due to the need to adapt to users' evolving preferences. Previous methods typically leverage reranking algorithms to calibrate recommendations after training a model without considering the effect of calibration and do not effectively tackle the conflict between relevance and calibration during the reranking process. In this work, we propose LeapRec (Calibration-Disentangled Learning and Relevance-Prioritized Reranking), a novel approach for the calibrated sequential recommendation that addresses these challenges. LeapRec consists of two phases, model training phase and reranking phase. In the training phase, a backbone model is trained using our proposed calibration-disentangled learning-to-rank loss, which optimizes personalized rankings while integrating calibration considerations. In the reranking phase, relevant items are prioritized at the top of the list, with items needed for calibration following later to address potential conflicts between relevance and calibration. Through extensive experiments on four real-world datasets, we show that LeapRec consistently outperforms previous methods in the calibrated sequential recommendation. Our code is available at https://github.com/jeon185/LeapRec.
description: Published at CIKM '24 as a full research paper
METHODOLOGY TO CHARACTERIZE DIRECTIONAL COUPLER
Creators: name: Feugnet, Gilles
Publisher: name: Zenodo
Year: 2024
Subjects: Thin film niobate lithium
photonics
directional coupler

description: This document aims at summarizing the characterization method that was developed in H2020 ELENA project. In this project, different partners characterize the same building blocks and they had to define common characterizations and analysis methods. We do not claim that this is the only method to characterize directional coupler.

 

The information, documentation and figures in this document are written by the ELENA consortium under EC grant agreement no. 101016138 and do not necessarily reflect the views of the European Commission. The European Commission is not liable for any use that may be made of the information contained herein.
Bound states at partial dislocation defects in multipole higher-order topological insulators
Creators: name: Yamada, Sasha S.
name: Li, Tianhe
name: Lin, Mao
name: Peterson, Christopher W.
name: Hughes, Taylor L.
name: Bahl, Gaurav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The bulk-boundary correspondence, which links a bulk topological property of a material to the existence of robust boundary states, is a hallmark of topological insulators. However, in crystalline topological materials the presence of boundary states in the insulating gap is not always necessary since they can be hidden in the bulk energy bands, obscured by boundary artifacts of non-topological origin, or, in the case of higher-order topology, they can be gapped altogether. Crucially, in such systems the interplay between symmetry-protected topology and the corresponding symmetry defects can provide a variety of bulk probes to reveal their topological nature. For example, bulk crystallographic defects, such as disclinations and dislocations, have been shown to bind fractional charges and/or robust localized bound states in insulators protected by crystalline symmetries. Recently, exotic defects of translation symmetry called partial dislocations have been proposed as a probe of higher-order topology. However, it is a herculean task to have experimental control over the generation and probing of isolated defects in solid-state systems; hence their use as a bulk probe of topology faces many challenges. Instead, here we show that partial dislocation probes of higher-order topology are ideally suited to the context of engineered materials. Indeed, we present the first observations of partial-dislocation-induced topological modes in 2D and 3D higher-order topological insulators built from circuit-based resonator arrays. While rotational defects (disclinations) have previously been shown to indicate higher-order topology, our work provides the first experimental evidence that exotic translation defects (partial dislocations) are bulk topological probes.
The Acoustic Properties of Water Submerged Lodgepole Pine (Pinus contorta) and Spruce (Picea spp.) Wood and Their Suitability for Use as Musical Instruments
Creators: name: Hilde, Calvin
name: Woodward, Renata
name: Avramidis, Stavros
name: Hartley, Ian D.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2019

description: Wood is a common material used for the manufacture of many products, and submerged wood, in particular, has been used in niche markets and musical instruments. In order to examine if submerged wood in British Columbia, Canada, would be appropriate for use as musical instruments, a study was performed in 2007 on submerged wood from Ootsa Lake, British Columbia, Canada. The results of that study showed the wood was not suitable for musical instruments. In this paper, the wood samples were allowed to age untouched in a laboratory setting and were then retested under the hypothesis that physical acoustic characteristics would improve. It was shown, however, that acoustic properties became less adequate after being left to dry over time. This article describes the density, speed of sound, acoustic constant and characteristic impedance properties for submerged wood and a comparison is made for different applications for musical instruments.
The Physicist Inside the Ambiguous Room: an argument against the need of consciousness in quantum mechanical measurement process
Creators: name: Roselli, Carlo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper aims to invalidate the hypothesis that consciousness is necessary for the quantum measurement process. To achieve this target, I propose a considerable modification of the Schroedinger cat and the Dead-Alive Physicist thought experiments, called 'PIAR', short for Physicist Inside the Ambiguous Room. A specific strategy has enabled me to plan the experiment in such a way as to logically justify the inconsistency of the above hypothesis and to oblige its supporters to rely on an alternative interpretation of quantum mechanics in which the real-world phenomena exist independently of our conscious mind and where observers play no special role. Moreover, in my description, the measurement apparatus will be complete, in the sense that the experiment, given that it includes also the experimenter, will begin and end exclusively within a sealed room. Hence, my analysis provides a logical explanation of the relationship between the observer and the objects of her/his experimental observation; this and a few other implications are discussed in the fifth section and the conclusions.
description: 10 pages and 2 figures. arXiv admin note: substantial text overlap with arXiv:2006.06368
Utilization of Anti-Secretory Drugs for Stress Ulcer Prophylaxis in General Internal Medicine Wards
Creators: name: Areerut Leelathanalerk
Publisher: name: Faculty of Pharmaceutical Sciences KKU MSU UBU
Year: 2020
Subjects: anti-secretory drugs, stress ulcer prophylaxis, internal medicine patient, proton pump inhibitors

description: Isan Journal ofPharmaceutical Sciences, 16, 2, 1-10
The closeness of localised structures between the Ablowitz-Ladik lattice and Discrete Nonlinear Schrödinger equations II: Generalised AL and DNLS systems
Creators: name: Hennig, Dirk
name: Karachalios, Nikos I.
name: Cuevas-Maraver, Jesus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The Ablowitz-Ladik system, being one of the few integrable nonlinear lattices, admits a wide class of analytical solutions, ranging from exact spatially localised solitons to rational solutions in the form of the spatiotemporally localised discrete Peregrine soliton. Proving a closeness result between the solutions of the Ablowitz-Ladik and a wide class of Discrete Nonlinear Schrödinger systems in a sense of a continuous dependence on their initial data, we establish that such small amplitude waveforms may be supported in the nonintegrable lattices, for significant large times. The nonintegrable systems exhibiting such behavior include a generalisation of the Ablowitz-Ladik system with a power-law nonlinearity and the Discrete Nonlinear Schrödinger with power-law and saturable nonlinearities. The outcome of numerical simulations illustrates in an excellent agreement with the analytical results the persistence of small amplitude Ablowitz-Ladik analytical solutions in all the nonintegrable systems considered in this work, with the most striking example being that of the Peregine soliton.
description: arXiv admin note: text overlap with arXiv:2102.05332
Development of a high-light-yield liquid argon detector using tetraphenyl butadiene and silicon photomultiplier array
Creators: name: Aoyama, Kazutaka
name: Tanaka, Masashi
name: Kimura, Masato
name: Yorita, Kohei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: To increase the light yield of a liquid Ar (LAr) detector, we optimized the evaporation technique of tetraphenyl butadiene (TPB) on the detector surface and tested the operability of a silicon photomultiplier (SiPM), namely, the multi-pixel photon counter with through-silicon-via (TSV-MPPC, Hamamatsu Photonics K.K.) at LAr temperature. TPB converts the LAr scintillations (vacuum ultraviolet light) to visible light, which can be detected by high-sensitivity photosensors. Because the light yield depends on the deposition mass of TPB on the inner surface of the detector, we constructed a well-controlled TPB evaporator to ensure reproducibility and measured the TPB deposition mass using a quartz crystal microbalance sensor. After optimizing the deposition mass of TPB (30 $μg/cm^2$ on the photosensor window and 40 $μg/cm^2$ on the detector wall), the light yield was 12.8 $\pm$ 0.3 p.e./keVee using PMTs with a quantum efficiency of approximately 30% for TPB-converted light. We also tested the low-temperature tolerance of TSV-MPPC, which has a high photon-detection efficiency, in the LAr environment. The TSV-MPPC detected the LAr scintillations converted by TPB with a photon-detection efficiency exceeding 50%.
A Feature Fusion-Net Using Deep Spatial Context Encoder and Nonstationary Joint Statistical Model for High Resolution SAR Image Classification
Creators: name: Liang, Wenkai
name: Wu, Yan
name: Li, Ming
name: Zhang, Peng
name: Cao, Yice
name: Hu, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Convolutional neural networks (CNNs) have been applied to learn spatial features for high-resolution (HR) synthetic aperture radar (SAR) image classification. However, there has been little work on integrating the unique statistical distributions of SAR images which can reveal physical properties of terrain objects, into CNNs in a supervised feature learning framework. To address this problem, a novel end-to-end supervised classification method is proposed for HR SAR images by considering both spatial context and statistical features. First, to extract more effective spatial features from SAR images, a new deep spatial context encoder network (DSCEN) is proposed, which is a lightweight structure and can be effectively trained with a small number of samples. Meanwhile, to enhance the diversity of statistics, the nonstationary joint statistical model (NS-JSM) is adopted to form the global statistical features. Specifically, SAR images are transformed into the Gabor wavelet domain and the produced multi-subbands magnitudes and phases are modeled by the log-normal and uniform distribution. The covariance matrix is further utilized to capture the inter-scale and intra-scale nonstationary correlation between the statistical subbands and make the joint statistical features more compact and distinguishable. Considering complementary advantages, a feature fusion network (Fusion-Net) base on group compression and smooth normalization is constructed to embed the statistical features into the spatial features and optimize the fusion feature representation. As a result, our model can learn the discriminative features and improve the final classification performance. Experiments on four HR SAR images validate the superiority of the proposed method over other related algorithms.
description: 17 pages,11 figures
Real-time Ionospheric Imaging of S4 Scintillation from Limited Data with Parallel Kalman Filters and Smoothness
Creators: name: Koulouri, Alexandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we propose a Bayesian framework to create two dimensional ionospheric images of high spatio-temporal resolution to monitor ionospheric irregularities as measured by the S4 index. Here, we recast the standard Bayesian recursive filtering for a linear Gaussian state-space model, also referred to as the Kalman filter, first by augmenting the (pierce point) observation model with connectivity information stemming from the insight and assumptions/standard modeling about the spatial distribution of the scintillation activity on the ionospheric shell at 350 km altitude. Thus, we achieve to handle the limited spatio-temporal observations. Then, by introducing a set of Kalman filters running in parallel, we mitigate the uncertainty related to a tuning parameter of the proposed augmented model. The output images are a weighted average of the state estimates of the individual filters. We demonstrate our approach by rendering two dimensional real-time ionospheric images of S4 amplitude scintillation at 350 km over South America with temporal resolution of one minute. Furthermore, we employ extra S4 data that was not used in producing these ionospheric images, to check and verify the ability of our images to predict this extra data in particular ionospheric pierce points. Our results show that in areas with a network of ground receivers with a relatively good coverage (e.g. within a couple of kilometers distance) the produced images can provide reliable real-time results. Our proposed algorithmic framework can be readily used to visualize real-time ionospheric images taking as inputs the available scintillation data provided from freely available web-servers.
Fünf Gründe für eine Veröffentlichung von Forschungsdaten
Creators: name: Böker, Elisabeth
Publisher: name: Zenodo
Year: 2020
Subjects: Forschungsdaten veröffentlichen
Forschungsdaten
Forschungsdatenmanagement
Wissenschaftliche Integrität
Nachnutzbarkeit von Daten

description: In dieser Präsentation werden fünf Gründe behandelt, die dafür sprechen, die Forschungsdaten zu Veröffentlichen. Diese sind: 1. Wissenschaftliche Integrität stärken 2. Sichtbarkeit erhöhen 3. Daten nachnutzbar machen 4. Gesamtgesellschaftlicher Nutzen 5. Pflichterfüllung Dr. Elisabeth Böker arbeitet am Kommunikations-, Informations-, Medienzentrum der Universität Konstanz und ist Projektkoordinatorin der baden-württembergisches Landesinitiative bw2FDM. Zudem hat sie die Chefredaktion der Informationsplattform forschungsdaten.info inne.
title: 01_1880
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: 3D Micro/Nanopatterning of a Vinylferrocene Copolymer
Creators: name: Löber, Dennis
name: Dey, Subhayan
name: Kaban, Burhan
name: Roesler, Fabian
name: Maurer, Martin
name: Hillmer, Hartmut
name: Pietschnig, Rudolf
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: vinylferrocene
subject: copolymer
subject: methyl methacrylate
subject: reverse nanoimprint lithography
subject: 530
subject: 540
subject: Copaxone
subject: Ferrocen

description: Gefördert durch den Publikationsfonds der Universität Kassel
New twists in compact binary waveform modelling: a fast time domain model for precession
Creators: name: Estellés, Héctor
name: Colleoni, Marta
name: García-Quirós, Cecilio
name: Husa, Sascha
name: Keitel, David
name: Mateu-Lucena, Maite
name: Planas, Maria de Lluc
name: Ramos-Buades, Antoni
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present IMRPhenomTPHM, a phenomenological model for the gravitational wave signals emitted by the coalescence of quasi-circular precessing binary black holes systems. The model is based on the "twisting up" approximation, which maps non-precessing signals to precessing ones in terms of a time dependent rotation described by three Euler angles, and which has been utilized in several frequency domain waveform models that have become standard tools in gravitational wave data analysis. Our model is however constructed in the time domain, which allows several improvements over the frequency domain models: we do not use the stationary phase approximation, we employ a simple approximation for the precessing Euler angles for the ringdown signal, and we implement a new method for computing the Euler angles through the evolution of the spin dynamics of the system, which is more accurate and also computationally efficient.
description: 18 pages, 10 figures, 4 tables
Tomographic entanglement indicators from NMR experiments
Creators: name: Sharmila, B.
name: Krithika, V. R.
name: Pal, Soham
name: Mahesh, T. S.
name: Lakshmibala, S.
name: Balakrishnan, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In recent years, the performance of different entanglement indicators obtained directly from tomograms has been assessed in continuous-variable and hybrid quantum systems. In this paper, we carry out this task in the case of spin systems. We compute the entanglement indicators from actual experimental data obtained from three liquid-state NMR experiments, and compare them with standard entanglement measures calculated from the corresponding density matrices, both experimentally reconstructed and numerically computed. The gross features of entanglement dynamics and spin squeezing properties are found to be reproduced by these entanglement indicators. However, the extent to which these indicators and spin squeezing track the entanglement during time evolution of the multipartite systems in the NMR experiments is very sensitive to the precise nature and strength of interactions as well as the manner in which the full system is partitioned into subsystems. We also use the IBM quantum computer to implement equivalent circuits that capture the dynamics of the multipartite system in one of the NMR experiments. We compute and compare the entanglement indicators obtained from the tomograms corresponding to the experimental execution and simulation of these equivalent circuits. This exercise shows that these indicators can estimate the degree of entanglement without necessitating detailed state reconstruction procedures, establishing the advantage of the tomographic approach.
description: 26 pages, 17 figures