cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing Sound Speed of an Optically-Trapped Bose Gas with Periodically Modulated Interactions by Bragg Spectroscopy
Creators: name: Chen, Lei
name: Li, Wu
name: Chen, Zhu
name: Zhang, Zhidong
name: Liang, Zhaoxin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A Bose-Einstein condensate (BEC) with periodically modulated interactions (PMI) has emerged as a novel kind of periodic superfluid, which has been recently experimentally created using optical Feshbach resonance. In this paper, we are motivated to investigate the superfluidity of a BEC with PMI trapped in an optical lattice (OL). In particular, we explore the effects of PMI on the sound speed and the dynamical structure factor of the model system. Our numerical results, combined with the analytical results in both the weak-potential limit and the tight-binding limit, have shown that the PMI can strongly modify the sound speed of a BEC. Moreover, we have shown that the effects of PMI on sound speed can be experimentally probed via the dynamic structure factor, where the excitation strength toward the first Bogoliubov band exhibits marked difference from the non- PMI one. Our predictions of the effects of PMI on the sound speed can be tested using the Bragg spectroscopy.
description: 10 pages, 5 figures
MEASURING POLITICAL POLARIZATION IN MASS PUBLICS: THE CLUSTER-POLARIZATION COEFFICIENT
Creators: name: Mehlhaff, Isaac
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: Political polarization has become a key concern in many important topics within comparative politics, yet past research has reached little consensus as to its substantive causes and effects. Much of this disagreement, I argue, stems from the use of diverse measurement strategies that do not reliably capture the two key dynamics of polarization: distance and concentration. I use unsupervised machine learning methods to derive the cluster-polarization coefficient (CPC), a novel measurement strategy that scales to high-dimensional analysis and accepts a wide variety of data structures. I use Monte Carlo simulations to show that the CPC predicts polarization with substantially greater accuracy than current measures and I offer a substantive application by replicating and extending the well-known work of DiMaggio, Evans, and Bryson (1996) using data from the American National Election Studies.
On triples of ideal chambers in A2-buildings
Creators: name: Parreau, Anne
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20E42, 51E24

description: We investigate the geometry in a real Euclidean building X of type A2 of some simple configurations in the associated projective plane at infinity P, seen as ideal configurations in X, and relate it with the projective invariants (from the cross ratio on P). In particular we establish a geometric classification of generic triples of ideal chambers of X and relate it with the triple ratio of triples of flags.
description: to appear in Innovations in Incidence Geometry
PIP MRI Magnetization Transfer Ratio (MTR) Measurement of Myelofibrosis in Mouse Tibia
Creators: name: Chenevert, Thomas
name: Malyarenko, Dariya
Publisher: name: My University
Year: 2023

description: The goal of this Co-Clinical Imaging Research Program (CIRP) pre-clinical imaging protocol (PIP) is to provide detailed description of key steps used to achieve a stated level of technical repeatability (precision) embodied in “Claims”, for MRI measurement of magnetization transfer ratio (MTR) in tibia bone marrow of myelofibrosis mouse models. This pre-clinical imaging procedure document will be referred to as a “profile” and adheres to a PIP MRI template provided in: https://www.protocols.io/workspaces/pre-clinical-imaging-protocols. Here we treat MTR as a “quantitative” metric, although numerical MTR results are a strong function of multiple experimental parameters and MRI hardware conditions. This profile will adopt the common practice to express MTR values in on a 0 to 1 scale. Empirically, MTR reflects fraction of visible signal loss due to application of off-resonance saturation RF energy depleting magnetization in the semi-solid (invisible) macromolecular matrix thus reducing magnetization replenishing visible signal.Simple fluids free of macromolecules should have an MTR » 0, whereas macromolecule-rich semi-solid tissues such as myelin, muscle, scar and collagen exhibit relatively high MTR (> 0.5). This document details procedures for MTR measurement in MF mouse tibia to achieve stated performance claims. Tibia bone marrow composition in MF mouse models has gradation going from proximal to distil ends of the tibia, therefore separate claims are made for volume of interest (VOI) analysis of ADC maps for each of three distinct sections along the length of the tibia (see Figure 1): Section 1 (proximal)º VOI (~4-5mm3) within 9mm of proximal end of tibia Section 2 (transition)º VOI (~0.4-0.5mm3) from 10 to 12mm of proximal end of tibia Section 3 (distil)º VOI (~0.1-0.2mm3) from 13 to 14mm of proximal end of tibia Claim 1:A measured change in the mean ADC in Section 1 VOI of MF mouse model tibia that exceeds ±0.037µm2/ms indicates a true biological change has occurred in the tibia bone marrow with 95% confidence. Claim 2:A measured change in the mean ADC in Section 2 VOI of MF mouse model tibia that exceeds ±0.087µm2/ms indicates a true biological change has occurred in the tibia bone marrow with 95% confidence Claim 3:A measured change in the mean ADC in Section 3 VOI of MF mouse model tibia that exceeds ±0.030µm2/ms indicates a true biological change has occurred in the tibia bone marrow with 95% confidence.
Dynamical preparation of quantum spin liquids in Rydberg atom arrays
Creators: name: Giudici, Giuliano
name: Lukin, Mikhail D.
name: Pichler, Hannes
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We theoretically analyze recent experiments [G. Semeghini et al., Science 374, 1242 (2021)] demonstrating the onset of a topological spin liquid using a programmable quantum simulator based on Rydberg atom arrays. In the experiment, robust signatures of topological order emerge in out-of-equilibrium states that are prepared using a quasi-adiabatic state preparation protocol. We show theoretically that the state preparation protocol can be optimized to target the fixed point of the topological phase -- the resonating valence bond (RVB) state of hard dimers -- in a time that scales linearly with the number of atoms. Moreover, we provide a two-parameter variational manifold of tensor network (TN) states that accurately describe the many-body dynamics of the preparation process. Using this approach we analyze the nature of the non-equilibrium state, establishing the emergence of topological order.
description: 5+4 pages, 4+5 figures
How reachable is Europe for the Japanese beetle: tracking planes, trains, and trucks to inform surveillance strategies
Creators: name: Borner, Leyli
name: Martinetti, Davide
name: Poggi, Sylvain
Publisher: name: Zenodo
Year: 2023
Subjects: biological invasion
human-facilitated dispersal
transport network
Popillia japonica
risk assessment
surveillance strategy
epidemic surveillance

description: The Japanese beetle (Popillia japonica) is a polyphagous insect listed as priority pest by the EU phytosanitary legislation. The beetle was first detected in Continental Europe in 2014, in the Italian regions of Piedmont and Lombardy. Since then, it has quickly invaded a large portion of Northwestern Italy and Southern Switzerland, despite the eradication effort of regional phytosanitary services. Furthermore, several interceptions of living adults have occurred in distant locations as a result of unintended passive transport of the beetle. Indeed, it is well established in the literature that Popillia japonica is capable of being dispersed over large distances via passive human transportation (hitchhiking behavior). In this work we analyzed how the invaded areas of Northern Italy and Switzerland are connected to the rest of Europe via three main transportation networks: planes, trains and trucks. We built reachability maps from the invaded zone highlighting sites that are likely to act as stepping stones or entry points for the beetle, both close and further away from the currently infested zone. Combined with a suitability map, this allows to prioritize sites for early-detection surveillance based on how likely they are to be reached, as well as their potential for being a future outbreak of infestation. This is crucial, as experiences in North America proved that early detection followed by effective eradication protocols can prevent the establishment of the beetle.
Maximum mass of magnetic white dwarfs
Creators: name: Paret, D. Manreza
name: Martinez, A. Perez
name: Horvath, J. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We revisit in this work the problem of the maximum masses of magnetized White Dwarfs (WD). The impact of a strong magnetic field onto the structure equations is addressed. The pressures become anisotropic due to the presence of the magnetic field and split into a parallel and perpendicular components. We first construct stable solutions of TOV equations for the parallel pressures, and found that physical solutions vanish for the perpendicular pressure when $B \gtrsim 10^{13}$ G. This fact establishes an upper bound for a magnetic field and the stability of the configurations in the (quasi) spherical approximation. Our findings also indicate that it is not possible to obtain stable magnetized WD with super Chandrasekhar masses because the values of the magnetic field needed for them are higher than this bound. To proceed into the anisotropic regime, we derived structure equations appropriated for a cylindrical metric with anisotropic pressures. From the solutions of the structure equations in cylindrical symmetry we have confirmed the same bound for $B \sim 10^{13} $ G, since beyond this value no physical solutions are possible. Our tentative conclusion is that massive WD, with masses well beyond the Chandrasekhar limit do not constitute stable solutions and should not exist.
description: 6 pages, 3 figures
Improving the Management of Environmental Health
Creators: name: Lave, Lester B.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Environmental health regulation has been developed on the premise that both problems and solutions are obvious, requiring only attention and commitment. The result has been impossible legislative goals and frenetic, unfocused agency efforts to deal with too many issues. Preventing all environmental health problems is impossible and not the best approach; instead, attention ought to be shifted toward reacting quickly to problems before irreversible, severe health damage has occurred. Rather than having regulatory agencies attempt to manage all problems, they should be focused on exemplifying goals and productive approaches, and on handling a few major issues. Regulatory agencies should be managing the nonregulatory institutions to ensure that they are effective in dealing with the myriad issues that the agencies will never be able to handle. The inherent limitations of federal regulatory agencies must be recognized to restructure environmental health management to be more effective in lowering risks while being efficient, administratively simple, and more equitable.
Axion-photon multimessenger astronomy with giant flares
Creators: name: De Miguel, Javier
name: Otani, Chiko
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We treat prospects for multimessenger astronomy with giant flares (GFs), a rare transient event featured by magnetars that can be as luminous as a hundred of the brightest supernovae ever observed. The beamed photons could correlate with an axion counterpart via resonant conversion in the magnetosphere. In a realistic parameter space, we find that the sensitivity limit to galactic GFs for currently viable experiments is $\mathrm{g}_{ϕγ}\!\gtrsim\!\mathrm{several}\!\times\!10^{-13}$ GeV$^{-1}$ \& $\mathrm{g}_{ϕe}\!\gtrsim\!\mathrm{few}\!\times\!10^{-12}$. We rule out the compatibility of axion flares with the recent XENON1T excess only due to the time persistence of the signal.
description: 7 pages, 3 figures
Health benefits exceed by 70 % costs to control stationary source air pollution
Creators: name: Lave, Lester B
name: Seskin, Eugene P.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The 1960's was a decade of U.S. idealism-there was a belief that our society could accomplish anything it set its mind to do. The decade opened with President Kennedy declaring that we would put a man on the moon by 1970. Social injustices were to be righted by a series of civil rights acts that pushed aside economic as well as legal barriers. Finally, President Johnson believed that we could have Great Society programs at home while fighting a war in Southeast Asia.
Additional file 2 of Comparative evolutionary analyses of eight whitefly Bemisia tabaci sensu lato genomes: cryptic species, agricultural pests and plant-virus vectors
Creators: name: Campbell, Lahcen I.
name: Nwezeobi, Joachim
name: van Brunschot, Sharon L.
name: Kaweesi, Tadeo
name: Seal, Susan E.
name: Swamy, Rekha A. R.
name: Namuddu, Annet
name: Maslen, Gareth L.
name: Mugerwa, Habibu
name: Armean, Irina M.
name: Haggerty, Leanne
name: Martin, Fergal J.
name: Malka, Osnat
name: Santos-Garcia, Diego
name: Juravel, Ksenia
name: Morin, Shai
name: Stephens, Michael E.
name: Muhindira, Paul Visendi
name: Kersey, Paul J.
name: Maruthi, M. N.
name: Omongo, Christopher A.
name: Navas-Castillo, Jesús
name: Fiallo-Olivé, Elvira
name: Mohammed, Ibrahim Umar
name: Wang, Hua-Ling
name: Onyeka, Joseph
name: Alicai, Titus
name: Colvin, John
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Supplementary figures S1-S17.
A study of commonly used tokenizers in Corpus Linguistics
Creators: name: Rodrigues Gomide, Andressa
name: Fekete, João
Publisher: name: Zenodo
Year: 2022
Subjects: Tokenizer accuracy
Corpus preparation
Tokenization control

description: Tokenization and segmentation are steps performed in the earlier stages of most text analysis. It is normally a fast process done using deterministic algorithms [3] to establish token and sentence boundaries [5]. Inexact tokenization can negatively affect later processes and applications with the corpus. For instance, applying a dependency parser to a badly tokenized sequence yields errors beyond the span of the problematic token. Also, depending on the input (e.g. language, variety, register) and on the purpose of the study, distinct tokenization decisions might be expected. For instance, multiword expressions and ambiguous separators such as hashtags can be approached in different ways. This study explores three widely used tokenizers - TreeTagger [8], FreeLing [7], SpaCy [1] - by analyzing their output when processing three different corpora, BNC2014 [6], Corifa [4], ukWac [2]. These corpora were chosen to range for a great variation on size, writing style, and register conventions, to account for a better representativity of the community use. By discussing the different outputs, we intend to shed some light on the importance of having control (and awareness) of all the stages of corpus preparation.
The dipolar Bose-Hubbard model
Creators: name: Lake, Ethan
name: Hermele, Michael
name: Senthil, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a simple model of interacting bosons on a d-dimensional cubic lattice whose dynamics conserves both total boson number and total boson dipole moment. This model provides a simple framework in which several remarkable consequences of dipole conservation can be explored. As a function of chemical potential and hopping strength, the model can be tuned between gapped Mott insulating phases and various types of gapless condensates. The condensed phase realized at large hopping strengths, which we dub a Bose-Einstein insulator, is particularly interesting: despite having a Bose condensate, it is insulating, and despite being an insulator, it is compressible.
description: 15 pages, 5 figures; v3: updated discussion of the 1d model
A strategy developed as a means to support open scholarship at a university in a low-income country in the global south
Creators: name: Nyahodza, Lena
name: Raju, Jaya
Publisher: name: Zenodo
Year: 2023
Subjects: Open access
Open scholarship
Research support
Publication funding
University of Cape Town
Academic promotion

description: Open scholarship supports a social justice agenda, particularly through the democratisation of knowledge (by removing knowledge access barriers ) for marginalised communities. However, most universities in the global south have either little or no funding to support open access, open data sharing and creation of open educational resources (OERs). The University of Cape Town (UCT), a research-intensive university in Africa (in the global south), expressed a commitment, in its mission statement, to advance and disseminate knowledge to address the key challenges facing society (that is, in South Africa, on the African continent and at global level). This calls for engagement in open scholarship (open access, open data sharing and OERS) as a social justice agenda through promoting re-use of knowledge for human development. A study finalised in 2022 at UCT revealed that academics and researchers that participated in the study minimally participating in open scholarship due to diverse reasons including lack of funding, lack of awareness of the availability of infrastructure, lack of awareness of the existence of open scholarship policies and other factors. The study also revealed that the promotion system at the university value metrics such as journal impact factor, which supports a closed publishing culture over openness of scholarship, whereas communities in South Africa and in other African countries experience complexities of marginalisation including income imbalances due to historical political experiences of apartheid and colonialism. Openness of scholarship has a significant role to support the transformation and decolonisation of education in the post-apartheid and post-colonial era. The findings of the study supported the development of a strategy to support open scholarship utilising resources available at UCT. Therefore, this strategy will be shared in a poster format, and factors that contributed to the development of the strategy will be shared during poster presentation.
Shilnikov problem in Filippov dynamical systems
Creators: name: Novaes, Douglas D.
name: Teixeira, Marco A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34A36, 37C29, 37H20

description: In this paper we introduce the concept of sliding Shilnikov orbits for $3$D Filippov systems. In short, such an orbit is a piecewise smooth closed curve, composed by Filippov trajectories, which slides on the switching surface and connects a Filippov equilibrium to itself, namely a pseudo saddle-focus. A version of the Shilnikov's Theorem is provided for such systems. Particularly, we show that sliding Shilnikov orbits occur in generic one-parameter families of Filippov systems, and that arbitrarily close to a sliding Shilnikov orbit there exist countably infinitely many sliding periodic orbits. Here, no additional Shilnikov-like assumption is needed in order to get this last result. In addition, we show the existence of sliding Shilnikov orbits in discontinuous piecewise linear differential systems. As far as we know, the examples of Fillippov systems provided in this paper are the first exhibiting such a sliding phenomenon.
Wide-band timing of GMRT discovered millisecond pulsars
Creators: name: Sharma, Shyam S.
name: Roy, Jayanta
name: Bhattacharyya, Bhaswati
name: Levin, Lina
name: Stappers, Ben
name: Pennucci, Timothy T.
name: Schult, Levi
name: Singh, Shubham
name: Kaninghat, Aswathy
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Modeling of frequency-dependent effects, contributed by the turbulence in the free electron density of interstellar plasma, is required to enable the detection of the expected imprints from the stochastic gravitational-wave (GW) background in pulsar timing data. In this work, we present an investigation of temporal variations of interstellar medium for a set of millisecond pulsars (MSPs) with the upgraded GMRT aided by large fractional bandwidth at lower observing frequencies. Contrary to the conventional narrow-band analysis using a frequency invariant template profile, we applied $PulsePortraiture$ based wide-band timing analysis while correcting for the evolution of the pulsar profile with frequency. Implementation of $PulsePortraiture$ based wide-band timing method for the GMRT discovered MSPs to probe the DM variations resulted in a DM precision of $10^{-4}\,pc~cm^{-3}$. In general, we achieve similar DM and timing precision from wide-band timing compared to the narrow-band timing with matching temporal variations of DMs. This wide-band timing study of newly discovered MSPs over a wide frequency range highlights the effectiveness of profile-modeling at low frequencies and probes the potential of using them in pulsar timing array.
description: 35 pages, 28 figures, accepted in ApJ
Inference-Based Sensitivity Analysis for Mixed Integer/Linear Programming
Creators: name: M. W. Dawande
name: Hooker, John N.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: A new method of sensitivity analysis for mixed integer/linear programming (MILP) is derived from the idea of inference duality. The inference dual of an optimization problem asks how the optimal value can be deduced from the constraints. In MILP, a deduction based on the resolution method oftheorem proving can be obtained from the branch-and-cut tree that solves the primal problem. One can then investigate which perturbations ofthe problem leave this proof intact. On this basis it is shown that, in a minimization problem, any perturbation that satisfies a certain system of linear inequalities will reduce the optimal value no more than a prespecified amount. One can also give an upper bound on the increase in the optimal value that results from a given perturbation. The method is illustrated on two realistic problems.
Near-Exact Nuclear Gradients of Complete Active Space Self-Consistent Field Wave Functions
Creators: name: Smith, James E. T.
name: Lee, Joonho
name: Sharma, Sandeep
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this paper, we study the nuclear gradients of heat bath configuration interaction self-consistent field (HCISCF) wave functions and use them to optimize molecular geometries for various molecules. We show that the HCISCF nuclear gradients are fairly insensitive to the size of the "selected" variational space, which allows us to reduce the computational cost without introducing significant error. The ability of HCISCF to treat larger active spaces combined with the flexibility for users to control the computational cost makes the method very attractive for studying strongly correlated systems which require a larger active space than possible with complete active space self-consistent field (CASSCF). Finally, we study the realistic catalyst, Fe(PDI), and highlight some of the challenges this system poses for density functional theory (DFT). We demonstrate how HCISCF can clarify the energetic stability of geometries obtained from DFT when the results are strongly dependent on the functional. We also use the HCISCF gradients to optimize geometries for this species and study the adiabatic singlet-triplet gap. During geometry optimization, we find that multiple near-degenerate local minima exist on the triplet potential energy surface.
Accelerated growth of seed black holes by dust in the early universe
Creators: name: Park, KwangHo
name: Chiaki, Gen
name: Wise, John H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the effect of dust on the growth of seed black holes (BHs) in the early universe. Previous 1D radiation-hydrodynamic (RHD) simulations show that increased radiation pressure on dust further suppresses the accretion rate than the case for the chemically pristine gas. Using the Enzo+Moray code, we perform a suite of 3D RHD simulations of accreting BHs in a dusty interstellar medium (ISM). We use the modified Grackle cooling library to consider dust physics in its non-equilibrium chemistry. The BH goes through an early evolutionary phase, where ionizing BH radiation creates an oscillating HII region as it cycles between accretion and feedback. As the simulations proceed, dense cold gas accumulates outside the ionized region where inflow from the neutral medium meets the outflow driven by radiation pressure. In the late phase, high-density gas streams develop and break the quasi-spherical symmetry of the ionized region, rapidly boosting the accretion rate. The late phase is characterized by the coexistence of strong ionized outflows and fueling high-density gas inflows. The mean accretion rate increases with metallicity reaching a peak at Z$\sim$0.01-0.1$\,Z_\odot$, one order of magnitude higher than the one for pristine gas. However, as the metallicity approaches the solar abundance, the mean accretion rate drops as the radiation pressure becomes strong enough to drive out the high-density gas. Our results indicate that a dusty metal-poor ISM can accelerate the growth rate of BHs in the early universe, however, can stun its growth as the ISM is further enriched toward the solar abundance.
description: 13 pages, 7 figures, 1 table, submitted to ApJ
Einsteigen und Arbeiten mit eLabFTW. Ein Hands-On Beispiel aus dem Molekulargenetischen Labor der Kinder- und Jugendpsychiatrie
Creators: name: Chiocchetti, Andreas
name: Haslinger, Denise
Publisher: name: Zenodo
Year: 2023
Subjects: Forschungsdatenmanagement
FDM
elektronisches Laborbuch
digitale Transformation
Research data management
RDM
electronical lab notebook
digital transformation
good practice
eLabFTW
ELN

description: Welchen Wandel hat das elektronische Laborbuch eLabFTW dem Molekulargenetisches Labor der Kinderpsychiatrie am Uniklinikum Frankfurt gebracht und wie sind sie dort hingekommen? Der Übergang vom traditionellen, papierbasierten Laborbuch auf ein elektronisches System hat ganz klar zu einer verbesserten Nachverfolgbarkeit von Experimenten und einer effizienteren Arbeitsweise beigetragen.

 In diesem Vortrag teilen Prof. Andreas Chiocchetti und Dr. Denise Haslinger praktische Tipps und Tricks, die sie im Laufe der Zeit gelernt haben, um das elektronische Laborbuch effektiv zu nutzen. Sie gehen auf die Vor- und Nachteile ein und zeigen anhand praktischer Beispiele, wie sie in ihrem Team Experimente erstellen, kollaborativ bearbeiten und die durchsuchbaren Datenbank-items erstellen und nutzen. Des Weiteren berichten sie, wie sie in ihrem Team erfolgreich den Wechsel von Papier auf elektronisch vollzogen haben, und welche Hürden sie dabei zu nehmen hatten.

 Die dreitägige HeFDI Data Week ermöglicht es Forschenden, Lehrenden und allen weiteren Interessierten, Themen und Angebote des Forschungsdatenmanagements kennenzulernen und zu erproben. Darüber hinaus werden den Teilnehmenden Daten- und Coding-Kompetenzen vermittelt sowie Dienste und Angebote verschiedener hessischer Infrastruktur-Einrichtungen und Zentren vorgestellt.
description: Die HeFDI Data Week ist ein Angebot der Landesinitiative HeFDI - Hessische Forschungsdateninfrastrukturen, welche vom Hessischen Ministerium für Wissenschaft und Kunst (HMWK) finanziert wird.
Point-contact Andreev-reflection spectroscopy in Fe(Te,Se) films: multiband superconductivity and electron-boson coupling
Creators: name: Daghero, D.
name: Pecchio, P.
name: Ummarino, G. A.
name: Nabeshima, F.
name: Imai, Y.
name: Maeda, A.
name: Tsukada, I.
name: Komiya, S.
name: Gonnelli, R. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on a study of the superconducting order parameter in Fe(Te$_{1-x}$Se$_{x}$) thin films (with different Se contents: x=0.3, 0.4, 0.5) by means of point-contact Andreev-reflection spectroscopy (PCARS). The PCARS spectra show reproducible evidence of multiple structures, namely two clear conductance maxima associated to a superconducting gap of amplitude $Δ_E \simeq 2.75 k_B T_c$ and additional shoulders at higher energy that, as we show, are the signature of the strong interaction of charge carriers with a bosonic mode whose characteristic energy coincides with the spin-resonance energy. The details of some PCARS spectra at low energy suggest the presence of a smaller and not easily discernible gap of amplitude $Δ_H \simeq 1.75 k_B T_c$. The existence of this gap and its amplitude are confirmed by PCARS measurements in Fe(Te$_{1-x}$Se$_{x}$) single crystals. The values of the two gaps $Δ_E$ and $Δ_H$, once plotted as a function of the local critical temperature $T_c^A$, turn out to be in perfect agreement with the results obtained by various experimental techniques reported in literature.
description: 8 pages, 6 figures. This is an author-created, un-copyedited version of an article published in Supercond. Sci. Technol. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/0953-2048/27/12/124014
Estimating Both Directed and Bidirectional Contemporaneous Relations in Time Series Data Using Hybrid-GIMME
Creators: name: Luo, Lan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: Researchers across varied fields increasingly are collecting and analyzing intensive longitudinal data (ILD) to examine change processes at the individual level. Whereas lagged relations are usually modeled using auto- and cross-regressions, there has yet to have one standard method to model contemporaneous relations. This project introduces hybrid-uSEM, an approach that combines two currently best applied approaches, unified Structural Equation Modeling and graphical Vector Autoregression. This project also implements hybrid-uSEM into Group  Iterative Multiple Model Estimation (GIMME), a data-driven algorithm that search for lagged and contemporaneous relations simultaneously in ILD, as hybrid-GIMME. Both simulated and empirical data were used to test the performance of hybrid-GIMME, and hybrid-GIMME performed substantially well especially when the data has a relatively large number of time points.
Inflation, Energy, and the World Economy
Creators: name: Meltzer, Allan
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: International cooperation is one of the remedies suggested as a solution to many of the economic problems we face, I have not found a reason to be for or against cooperation in general, and I do not have any reason to believe that such a judgment will help to discriminate in particular cases.
Timing-residual power spectrum of a polarized stochastic gravitational-wave background in pulsar-timing-array observation
Creators: name: Liu, Guo-Chin
name: Ng, Kin-Wang
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the observation of stochastic gravitational-wave background (SGWB) made by pulsar-timing arrays in the spherical harmonic space. Instead of using the Shapiro time delay, we keep the Sachs-Wolfe line-of-sight integral for the timing residual of an observed pulsar. We derive the power spectrum of the timing residual, from which the overlap reduction functions and the bipolar spherical harmonics coefficients are constructed for the SGWB intensity and polarization anisotropies. We have reproduced the previous results, noting that we have developed a fast algorithm for computing accurate overlap reduction functions and the bipolar spherical harmonics coefficients for the linear-polarization anisotropy are worked out for the first time. Our harmonic-space method is useful for future pulsar-timing-array observation on a few thousand pulsars and provides optimal estimators for testing the statistical isotropy of the SGWB.
description: 10 pages. arXiv admin note: text overlap with arXiv:2107.00536
A High-resolution Haplotype-resolved Reference Panel Constructed from the China Kadoorie Biobank Study
Creators: name: Xianmei(Lan)
Publisher: name: CNGB
Year: 2023
Subjects: Genome sequencing
Variation
Other
Human

description: Precision medicine relies on high-accuracy individual-level genotype data. However, the whole-genome sequencing (WGS) is currently not suitable for studies with very large sample sizes due to budget constraints. It is particularly important to construct highly accurate haplotype reference panel for genotype imputation. In this study, we randomly selected 9,950 individuals from the China Kadoorie Biobank (CKB) cohort and 50 Chinese samples from the 1000 Genome Project (1KGP) for medium-depth WGS to construct a CKB reference panel. The results of imputing microarray datasets showed that the CKB panel outperformed the extended high coverage 1KGP, TOPMed, ChinaMAP, and NuyWa panels in terms of both the number of well-imputed variants and imputation accuracy. In addition, we have completed the imputation of over 100,000 CKB microarray data with the CKB panel, and the after-imputed genotype data is the hitherto largest whole genome data of the Chinese population. Finally, we developed an online server for offering free genotype imputation service based on the CKB reference panel (https://db.cngb.org/imputation/). We believe that the constructed CKB reference panel is of great value for imputing microarray or low-depth genotype data of Chinese population. The imputation-completed 100,000 microarray data are fundamental resources of population genetic studies for complex traits and diseases in the Chinese population.
Additional file 4 of Comparative evolutionary analyses of eight whitefly Bemisia tabaci sensu lato genomes: cryptic species, agricultural pests and plant-virus vectors
Creators: name: Campbell, Lahcen I.
name: Nwezeobi, Joachim
name: van Brunschot, Sharon L.
name: Kaweesi, Tadeo
name: Seal, Susan E.
name: Swamy, Rekha A. R.
name: Namuddu, Annet
name: Maslen, Gareth L.
name: Mugerwa, Habibu
name: Armean, Irina M.
name: Haggerty, Leanne
name: Martin, Fergal J.
name: Malka, Osnat
name: Santos-Garcia, Diego
name: Juravel, Ksenia
name: Morin, Shai
name: Stephens, Michael E.
name: Muhindira, Paul Visendi
name: Kersey, Paul J.
name: Maruthi, M. N.
name: Omongo, Christopher A.
name: Navas-Castillo, Jesús
name: Fiallo-Olivé, Elvira
name: Mohammed, Ibrahim Umar
name: Wang, Hua-Ling
name: Onyeka, Joseph
name: Alicai, Titus
name: Colvin, John
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4. Supplementary text.
Discrete scaling and criticality in a chain of adaptive excitable integrators
Creators: name: Martinez-Saito, Mario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We describe a chain of unidirectionally coupled adaptive excitable elements slowly driven by a stochastic process from one end and open at the other end, as a minimal toy model of unresolved irreducible uncertainty in a system performing inference through a hierarchical model. Threshold potentials adapt slowly to ensure sensitivity without being wasteful. Activity and energy are released as intermittent avalanches of pulses with a discrete scaling distribution largely independent of the exogenous input form. Subthreshold activities and threshold potentials exhibit Lorentzian temporal spectra, with a power-law range determined by position in the chain. Subthreshold bistability closely resembles empirical measurements of intracellular membrane potential. We suggest that critical cortical cascades emerge from a trade-off between metabolic power consumption and performance requirements in a critical world, and that the temporal scaling patterns of brain electrophysiological recordings ensue from weighted linear combinations of subthreshold activities and pulses from different hierarchy levels.
The Neuromusculoskeletal Epidemiological Outcome (NEO) Matrix
Creators: name: Fraser, John J
Publisher: name: figshare
Year: 2023
Subjects: Epidemiology not elsewhere classified
Orthopaedics
Sports medicine
Physiotherapy

description: In the NEO matrix, neuromusculoskeletal is classified by the anatomical complex affected. The complexes are arranged from distal to proximal in the lower extremity, inferior to superior in the trunk and head, and proximal to distal in the upper extremity. On the x-axis of the NEO matrix, injuries are characterized by the primary tissue type affected. Osseous injuries involve conditions of bone such as fractures. Articular injuries encompass any injuries involving the capsule, ligaments, or cartilage of diarthrodial or intervertebral articulations. Musculotendinous injuries involve conditions of the muscle or the tendinous attachments. Neural injuries involve the structures of the central or peripheral nervous system. Lastly, non-specific classification encompasses conditions that do not fit within the other categories. NEO categories are classified using ICD-9 and ICD-10 codes.
Holomorph of generalized Bol loops
Creators: name: Adéníran, John Olushola
name: Jaíyéolá, Tèmítópé Gbóláhàn
name: Ìdòwú, Keheinde Adisa
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20N02, 20NO5

description: The notion of the holomorph of a generalized Bol loop and generalized flexible-Bol loop are characterized. With the aid of two self-mappings on the holomorph of a loop, it is shown that: the loop is a generalized Bol loop if and only if its holomorph is a generalized Bol loop; the loop is a generalized flexible-Bol loop if and only if its holomorph is a generalized flexible-Bol loop. Furthermore, elements of the Bryant Schneider group of a generalized Bol loop are characterized in terms of pseudo-automorphism, and the automorphisms gotten are used to build the holomorph of the generalized Bol loop.
description: 16
MMS Observations of a Compressed Current Sheet: Importance of the Ambipolar Electric Field
Creators: name: DuBois, Ami M.
name: Crabtree, Chris
name: Ganguli, Gurudas
name: Malaspina, David M.
name: Amatucci, William E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Spacecraft data reveals a nonuniform ambipolar electric field transverse to the magnetic field in a thin magnetotail current sheet that leads to intense ExB velocity shear and non-gyrotropic particle distributions. The ExB drift far exceeds the diamagnetic drift and drives lower hybrid waves localized to the magnetic field reversal region, which is ideally suited for the anomalous dissipation necessary for reconnection. It also reveals substructures embedded in the current density, indicating the formation of a non-ideal current sheet.
description: 6 pages, 4 figures
Density functional study of twisted graphene $L1_0$-FePd heterogeneous interface
Creators: name: Uemoto, Mitsuharu
name: Adachi, Hayato
name: Naganuma, Hiroshi
name: Ono, Tomoya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphene on $L1_0$-FePd(001), which has been experimentally studied in recent years, is a heterogeneous interface with a significant lattice symmetry mismatch between the honeycomb structure of graphene and tetragonal alloy surface. In this work, we report on the density functional study of its atomic-scale configurations, electronic and magnetic properties, and adsorption mechanism, which have not been well understood in previous experimental studies. We propose various atomic-scale models, including simple nontwisted and low-strain twisted interfaces, and analyze their energetical stability by performing structural optimizations using the van der Waals interactions of both DFT-D2 and optB86b-vdW functionals. The binding energy of the most stable structure reached $E_\mathrm{B}=-0.22$~eV/atom for DFT-D2 ($E_\mathrm{B}=-0.19$~eV/atom for optB86b-vdW). The calculated FePd-graphene spacing distance was approximately 2~Å, which successfully reproduced the experimental value. We also find out characteristic behaviors: the modulation of $π$-bands, the suppression of the site-dependence of adsorption energy, and the rise of \color{blue} moiré-like \color{black} corrugated buckling. In addition, our atomic structure is expected to help build low-cost computational models for investigating the physical properties of $L1_0$ alloys/two-dimensional interfaces.
description: 10 pages, 11 figures
Higher Symmetries of 5d Orbifold SCFTs
Creators: name: Del Zotto, Michele
name: Heckman, Jonathan J.
name: Meynet, Shani Nadir
name: Moscrop, Robert
name: Zhang, Hao Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Topology (math.AT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We determine the higher symmetries of 5d SCFTs engineered from M-theory on a $\mathbb{C}^3 / Γ$ background for $Γ$ a finite subgroup of $SU(3)$. This resolves a longstanding question as to how to extract this data when the resulting singularity is non-toric (when $Γ$ is non-abelian) and/or not isolated (when the action of $Γ$ has fixed loci). The BPS states of the theory are encoded in a 1d quiver quantum mechanics gauge theory which determines the possible 1-form and 2-form symmetries. We also show that this same data can also be extracted by a direct computation of the corresponding defect group associated with the orbifold singularity. Both methods agree, and these computations do not rely on the existence of a resolution of the singularity. We also observe that when the geometry faithfully captures the global 0-form symmetry, the abelianization of $Γ$ detects a 2-group structure (when present). As such, this establishes that all of this data is indeed intrinsic to the superconformal fixed point rather than being an emergent property of an IR gauge theory phase.
description: v2: 42 pages, 5 figures, reference added, typos corrected, clarifications added
Information asymmetry and equilibrium monitoring in education
Creators: name: Ferreyra, Maria Marta
name: Jinghong Liang
Publisher: name: Figshare
Year: 2018
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We develop a theoretical and computational model of school choice and achievement that embeds information asymmetries in the provision of education. Because school effort is unobservable to households and policymakers, schools have an incentive to under provide effort. This moral hazard affects both public and private schools, although public schools are subject to an additional distortion because of limited competition and fixed funding. Household monitoring of schools can mitigate moral hazard, but some households may free-ride on the monitoring of others. Using our calibrated model we simulate two policies aimed at raising achievement: public monitoring of public schools and private school vouchers. Our results indicate that in large scale settings no single tool may suffice. The reason is twofold: a) no tool raises achievement or welfare for all households; and b) since the extent of moral hazard is endogenous, the application of each tool has unintended consequences that limit its own effectiveness. Results also indicate that setting the policy parameters for public schools at the levels preferred by the majority of households may mitigate the distortions. Nonetheless, the current actual values of these parameters seem to match more closely the preferences of public schools than the preferences of parents.
Schule für alle – aus der Perspektive der Klassenlehrpersonen
Creators: name: Friedli, Mirjam
Publisher: name: Zenodo
Year: 2023
Subjects: Sonderpädagogik
Masterarbeit
Klassenlehrperson
Schule für alle

description: Schüler:innen mit besonderem Bildungsbedarf werden in Wangen bei Olten weitgehend in der Regelschule unterrichtet. Der Wechsel von separativen zu inklusiven Schulformen bringt eine umfassende Veränderung für die Schule und insbesondere die Klassenlehrpersonen. Diese Masterarbeit soll einen Einblick darüber geben, wie die Klassenlehrpersonen den veränderten Schulalltag erleben. Die Heterogenität der Schüler:innen hinsichtlich ihrer Lernvoraussetzungen und Bedürfnissen ist für den Schulalltag herausfordernd. Die Arbeit zeigt auf, zu welchen Belastungen die Herausforderung führt. Ausgehend von diesen Belastungen werden Bedürfnisse abgeleitet. In einem abschliessenden Teil wird nach Entlastungsmöglichkeiten gesucht, die an die Bedürfnisse der Klassenlehrpersonen anknüpfen.
Die Perspektive der Klassenlehrpersonen wurde exemplarisch im Team 'Alp' der Schule Wangen beleuchtet. Dazu diente eine Online-Befragung aller Klassenlehrpersonen und eine Vertiefung der Inhalte im Rahmen von vier Interviews. Die Auswertung erfolgte mittels qualitativer Inhaltsanalyse. Die empirisch ermittelten Erfahrungen wurden in der Fachliteratur verortet.
Die Ergebnisse zeigen, dass die 'Schule für alle' vielseitig erlebt wird. Es kommt zum Ausdruck, dass eigene Erfahrungen und Werte das Erleben beeinflussen. Die heterogene Klasse wird als Bereicherung erlebt, wenn Verschiedenartigkeit als Ressource in den Blick genommen wird. Erlebte schwierige Schulsituationen dagegen führen dazu, inklusiven Schulalltag als herausfordernd bis zu energieraubend und ungerecht zu empfinden.
Generell als belastend wird erlebt, 'nicht allen gerecht' zu werden. Dieses Gefühl resultiert aus dem Umstand knapper Ressourcen, ist aber auch auf die hohen Anforderungen an die Lehrpersonen als Folge der Heterogenität zurückzuführen.
Aus der Arbeit geht hervor, dass ausgebaute Kooperation und 'inklusive Didaktik' Antworten auf die beschriebene Belastung geben. Diese beiden Aspekte bilden in Verbindung mit positiven Erfahrungen eine Schlüsselrolle. Wenn es gelingt, Kooperation und 'inklusive Didaktik' als Entlastung erfahrbar zu machen, trägt dies zur Entwicklung und Etablierung einer 'Schule für alle' bei.