cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Degradation of a leather-dye by the combination of depolymerised wood-chip biochar adsorption and solid-state fermentation with Trametes villosa SCS-10
Creators: name: Ortiz-Monsalve, S.
name: M. Gutterres
name: P. Valente
name: J. Plácido
name: S. Bustamante-López
name: D. Kelly
name: S. L. Kelly
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology

description: Additional file 1: Table S1. Physical and chemical characteristics of the leather-dye AB161. Table S2. Analyse of Variance (ANOVA) of the obtained model for dye removal. Table S3. Analyse of Variance (ANOVA) and Duncan's multiple range test for dye removal by adsorption. Table S4. Analyse of Variance (ANOVA) and Duncan's multiple range test for the desorption assays. Table S5. Analyse of Variance (ANOVA) and Duncan's multiple range test for fungal growth. Table S6. Analyse of Variance (ANOVA) and Duncan's multiple range test for the laccase activity. Figure S1. Calibration curve: absorbance vs. concentration of AB161.
A Dataset-free Deep learning Method for Low-Dose CT Image Reconstruction
Creators: name: Ding, Qiaoqiao
name: Ji, Hui
name: Quan, Yuhui
name: Zhang, Xiaoqun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Numerical Analysis (math.NA)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Low-dose CT (LDCT) imaging attracted a considerable interest for the reduction of the object's exposure to X-ray radiation. In recent years, supervised deep learning (DL) has been extensively studied for LDCT image reconstruction, which trains a network over a dataset containing many pairs of normal-dose and low-dose images. However, the challenge on collecting many such pairs in the clinical setup limits the application of such supervised-learning-based methods for LDCT image reconstruction in practice. Aiming at addressing the challenges raised by the collection of training dataset, this paper proposed a unsupervised deep learning method for LDCT image reconstruction, which does not require any external training data. The proposed method is built on a re-parametrization technique for Bayesian inference via deep network with random weights, combined with additional total variational~(TV) regularization. The experiments show that the proposed method noticeably outperforms existing dataset-free image reconstruction methods on the test data.
Constraints on determinism: Bell versus Conway-Kochen
Creators: name: Cator, Eric
name: Landsman, Klaas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81Q99

description: Bell's Theorem from 1964 and the (Strong) Free Will Theorem of Conway and Kochen from 2009 both exclude deterministic hidden variable theories (or, in modern parlance, `ontological models') that are compatible with some small fragment of quantum mechanics, admit `free' settings of the archetypal Alice & Bob experiment, and satisfy a locality condition called Parameter Independence. We clarify the relationship between these theorems by giving reformulations of both that exactly pinpoint their resemblance and their differences. Our reformulation imposes determinism in what we see as the only consistent way, in which the `ontological state' initially determines both the settings and the outcome of the experiment. The usual status of the settings as `free' parameters is subsequently recovered from independence assumptions on the pertinent (random) variables. Our reformulation also clarifies the role of the settings in Bell's later generalization of his theorem to stochastic hidden variable theories.
description: 10 pages, v2: references [19] and [37] added, footnote 2 expanded. Accepted by Foundations of Physics
Elementary analytic functions in $VTC^0$
Creators: name: Jeřábek, Emil
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 03F20, 03F30, 33B10

description: It is known that rational approximations of elementary analytic functions (exp, log, trigonometric, and hyperbolic functions, and their inverse functions) are computable in the weak complexity class $\mathrm{TC}^0$. We show how to formalize the construction and basic properties of these functions in the corresponding theory of bounded arithmetic, $\mathsf{VTC}^0$.
description: 57 pages
title: Berufliche Bildung in der Einwanderungsgesellschaft. Diversity als Herausforderung für Organisationen, Lehrkräfte und Ausbildende
Creators: name: Kimmelmann, Nicole
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2009
Subjects: subject: 370 Bildung und Erziehung

description: Wie kann eine berufsbildende Schule ein Schulklima schaffen, das die kulturelle Vielfalt der Schüler/innen widerspiegelt und einbindet? Welche Möglichkeiten hat ein Betrieb, die Zusammenarbeit seiner multikulturellen Auszubildenden zu stärken und für den Ausbildungserfolg zu nutzen? Was für Kompetenzen brauchen eigentlich Lehrkräfte und Ausbildende in der Beruflichen Bildung, um mit ihren kulturell unterschiedlichen Lernenden umzugehen? Wie kann man diese Kompetenzen in der Aus- und Weiterbildung trainieren? Diese und weitere Fragen der Beruflichen Bildung in der Einwanderungsgesellschaft versucht der Band mit exemplarischen Beiträgen aus Wissenschaft und Praxis zu beantworten. Aufgezeigt werden neben notwendigen Veränderungen auf der organisatorischen Ebene auch Wege zu einer höheren Professionalität der pädagogischen Akteure sowie konkrete Projekte bzw. Ansätze auf Unterrichts-, Betriebs- und Schulebene für die Lernenden. Der Fokus liegt dabei nicht (allein) auf den Schwierigkeiten, die mit einer kulturell diversen Zielgruppe verbunden sind. Die Autorinnen und Autoren zeigen vielmehr, dass und wie die zunehmende (über kulturelle Aspekte hinausgehende) Diversität der Lernenden bei einem erfolgreichen Diversity Management insbesondere auch eine Bereicherung und Chance für alle Beteiligten sein kann.
description: Texte zur Wirtschaftspädagogik und Personalentwicklung, 2
Bearbeitungsmuster von Studierenden im Umgang mit formalen Definitionen im Kontext konstanter Folgen
Creators: name: Schlüter, Sarah
name: Liebendörfer, Michael
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Definitionen
subject: formales Argumentieren
subject: konstante Folge
subject: Hochschule
subject: Argumentieren & Beweisen
subject: interdisziplinär
subject: Schnittstelle Sek 2 und Hochschule
subject: Analysis
subject: 510

description: Im Übergang von der Schule zur Hochschule vollzieht sich insbesondere ein Übergang zur formalen Mathematik. Während in der Schulmathematik die Argumentation anhand von Beispielen, Visualisierungen und intuitivem Denken üblich ist, nutzt die Hochschulmathematik Beweise auf Grundlage von Axiomen und Definitionen (Liebendörfer, 2018). Da Studierenden die Rolle von Definitionen bei mathematischen Argumentationen oftmals nicht bewusst ist, verwenden sie diese häufig nicht dazu (Edwards & Ward, 2008). Stattdessen argumentieren viele anhand von Beispielen oder intuitiven Überlegungen, selbst wenn Aufgaben ohne Definitionen nicht gelöst werden können (Alcock & Simpson, 2002; Holguin, 2016). Viele Studierende haben Schwierigkeiten mit den neuen Arbeitsweisen, fühlen sich vom neuen Diskurs ausgeschlossen und verlieren deutlich an Motivation (Liebendörfer, 2018). In diesem Beitrag berichten wir über eine explorative Studie mit dem Ziel, Schwierigkeiten und Strategien von Studierenden beim formalen Argumentieren zu identifizieren.
Komparative Fallanalysen zur Spezifität von Wissensentwicklungsprozessen in empirischen Settings im Mathematikunterricht der Grundschule
Creators: name: Schneider, Rebecca
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Maßstab
subject: Grundschule
subject: Empirische Theorien
subject: Wissensentwicklung
subject: Empirische Settings
subject: Arithmetik
subject: Geometrie
subject: 510

description: Die Entwicklung mathematischen Wissens durch den Einsatz von Aufgaben zu fördern, die Phänomene aus der Erfahrungswelt der Lernenden aufgreifen, ist für den Mathematikunterricht der Grundschule wesentlich. Das Erkenntnisinteresse der vorliegenden Studie gilt der Frage, inwiefern der Einsatz von Settings, die beabsichtigen mathematisches Wissen anhand realistischer Kontexte durch Schüler*innen konstruieren zu lassen tragfähig ist und welche Spezifika sich für in solchen Settings angeregte mathematische Lernprozesse ausmachen lassen. Der Begriff des empirischen Settings nach Dilling (2022) beschreibt in diesem Zusammenhang kurz gefasst „Lernumgebung[en], in der empirische Objekte einen tragende Rolle spielen“ (S.5) und kann dementsprechend als übergeordneter Begriff für zahlreiche Konzeptionen und Begrifflichkeiten dienen, in denen die hier beschriebenen Bestrebungen fokussiert werden.
Interplay between microdynamics and macrorheology in vesicle suspensions
Creators: name: Kaoui, Badr
name: Jonk, Ruben J. W.
name: Harting, Jens
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The microscopic dynamics of objects suspended in a fluid determines the macroscopic rheology of a suspension. For example, as shown by Danker and Misbah [Phys. Rev. Lett. {\bf 98}, 088104 (2007)], the viscosity of a dilute suspension of fluid-filled vesicles is a non-monotonic function of the viscosity contrast (the ratio between the viscosities of the internal encapsulated and the external suspending fluids) and exhibits a minimum at the critical point of the tank-treading-to-tumbling transition. By performing numerical simulations, we recover this effect and demonstrate that it persists for a wide range of vesicle parameters such as the concentration, membrane deformability, or swelling degree. We also explain why other numerical and experimental studies lead to contradicting results. Furthermore, our simulations show that this effect even persists in non-dilute and confined suspensions, but that it becomes less pronounced at higher concentrations and for more swollen vesicles. For dense suspensions and for spherical (circular in 2D) vesicles, the intrinsic viscosity tends to depend weakly on the viscosity contrast.
description: 9 pages, 9 figures, to appear in Soft Matter (2014)
Quantum capacity and codes for the bosonic loss-dephasing channel
Creators: name: Leviant, Peter
name: Xu, Qian
name: Jiang, Liang
name: Rosenblum, Serge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bosonic qubits encoded in continuous-variable systems provide a promising alternative to two-level qubits for quantum computation and communication. So far, photon loss has been the dominant source of errors in bosonic qubits, but the significant reduction of photon loss in recent bosonic qubit experiments suggests that dephasing errors should also be considered. However, a detailed understanding of the combined photon loss and dephasing channel is lacking. Here, we show that, unlike its constituent parts, the combined loss-dephasing channel is non-degradable, pointing towards a richer structure of this channel. We provide bounds for the capacity of the loss-dephasing channel and use numerical optimization to find optimal single-mode codes for a wide range of error rates.
description: 18 pages, 10 figures; This paper was accepted to Quantum on 5 Sept 2022
Relativistic electron precipitation by EMIC waves: importance of nonlinear resonant effects
Creators: name: Grach, Veronika S.
name: Artemyev, Anton V.
name: Demekhov, Andrei G.
name: Zhang, Xiao-Jia
name: Bortnik, Jacob
name: Angelopoulos, Vassilis
name: Nakamura, R.
name: Tsai, E.
name: Wilkins, C.
name: Roberts, O. W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Relativistic electron losses in Earth's radiation belts are usually attributed to electron resonant scattering by electromagnetic waves. One of the most important wave mode for such scattering is the electromagnetic ion cyclotron (EMIC) mode. Within the quasi-linear diffusion framework, the cyclotron resonance of relativistic electrons with EMIC waves results in very fast electron precipitation to the atmosphere. However, wave intensities often exceed the threshold for nonlinear resonant interaction, and such intense EMIC waves have been shown to transport electrons away from the loss cone due to the force bunching effect. In this study we investigate if this transport can block electron precipitation. We combine test particle simulations, low-altitude ELFIN observations of EMIC-driven electron precipitation, and ground-based EMIC observations. Comparing simulations and observations, we show that, despite of the low pitch-angle electrons being transported away from the loss cone, the scattering at higher pitch angles results in the loss cone filling and electron precipitation.
Symmetry restoration, Tunnelling and the Null Energy Condition
Creators: name: Alexandre, Jean
name: Polonyi, Janos
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A finite volume allows tunnelling between degenerate vacua in Quantum Field Theory, and leads to remarkable energetic features, arising from the competition of different saddle points in the partition function. We describe this competition for finite temperature at equilibrium, taking into account both static and (Euclidean) time-dependent saddle points. The effective theory for the homogeneous order parameter yields a non-extensive vacuum energy at low temperatures, implying a dynamical violation of the Null Energy Condition.
description: 14 pages, two figures
„Die sind doch nicht ähnlich zueinander!“: Lehramtsstudierende philosophieren über den Begriff der Ähnlichkeit
Creators: name: Scholl, Theresa
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Ähnlichkeit
subject: philosophieren
subject: Fachsprache
subject: Alltagssprache
subject: Hochschule
subject: Lehrerbildung (1., 2. und 3. Phase)
subject: Sprache & Mathematik
subject: Geometrie
subject: 510

description: An der Justus-Liebig-Universität in Gießen ist in einer Veranstaltung zur Didaktik der Geometrie aufgefallen, dass Lehramtsstudierende Probleme mit dem mathematischen Schulwissen haben. Aus dieser Problemlage ist im Zuge eines geförderten Projekts (HessenHub) das Lernmodul Basiswissen Geometrie digital entstanden, bei dem Lehramtsstudierende das mathematische Wissen der Schulgeometrie wiederholen können (Scholl & Lengnink, 2021). Zu diesem Lernmodul wurden unter anderem Seiten zum Philosophieren entwickelt, bei denen das Philosophieren als tool (Jankvist & Iversen, 2014) genutzt wird, um eine vertiefende Auseinandersetzung mit mathematischen Begriffen bei den Lehramtsstudierenden anzustoßen. So wird im Themengebiet Strahlensätze und Ähnlichkeit das Ziel verfolgt, die alltagssprachliche und die fachsprachliche Verwendung des Begriffs ähnlich zu diskutieren (Abb. 1).
Constraints on dark matter self-interaction from the internal density profiles of X-COP galaxy clusters
Creators: name: Eckert, D.
name: Ettori, S.
name: Robertson, A.
name: Massey, R.
name: Pointecouteau, E.
name: Harvey, D.
name: McCarthy, I. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: TThe fundamental properties of the postulated dark matter (DM) affect the internal structure of gravitationally-bound structures. In the cold dark matter paradigm, DM particles interact only via gravity. Their distribution is well represented by an Einasto profile with shape parameter $α\approx0.18$, in the smallest dwarf galaxies or the most massive galaxy clusters alike. Conversely, if dark matter particles self-interact via additional forces, we expect the mass density profiles of DM halos to flatten in their central regions, thereby increasing the Einasto shape parameter. We measure the structural properties of the 12 massive X-COP galaxy clusters from observations of their hot gaseous atmosphere using the X-ray observatory XMM-Newton, and of the Sunyaev-Zeldovich effect using the Planck all-sky survey. After removing morphologically disturbed systems, we measure Einasto shape parameters with mean $\langleα\rangle = 0.19 \pm 0.03$ and intrinsic scatter $σ_α=0.06$, in close agreement with the prediction of the cold dark matter paradigm. We use cosmological hydrodynamical simulations of cluster formation with self-interacting DM (BAHAMAS-SIDM) to determine how the Einasto shape parameter depends on the self-interaction cross section. We use the fitted relation to turn our measurements of $α$ into constraints on the self-interaction cross section, which imply $σ/m < 0.19$ cm$^2$/g (95% confidence level) at collision velocity $v_\mathrm{DM-DM}\sim1,000$ km/s. This is lower than the interaction cross-section required for dark matter self-interactions to solve the core-cusp problem in dwarf spheroidal galaxies, unless the cross section is a strong function of velocity.
description: Re-submitted to A&A after revision
Stability of the Schwarzschild-de Sitter black hole in the dRGT massive gravity theory
Creators: name: Kodama, Hideo
name: Arraut, Ivan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Schwarzschild-de Sitter solution in the Einstein theory with a positive cosmological constant $Λ=m^2/α$ becomes an exact solution to the dRGT non-linear massive gravity theory with the mass parameter $m$ when the theory parameters $α$ and $β$ satisfy the relation $β=α^2$. We study the perturbative behaviour of this black hole solution in the non-linear dRGT theory with $β=α^2$. We find that the linear perturbation equations become identical to those for the vacuum Einstein theory when they are expressed in terms of the gauge-invariant variables. This implies that this black hole is stable in the dRGT theory as far as the spacetime structure is concerned in contrast to the case of the bi-Schwarzschild solution in the bi-metric theory. However, we have also found a pathological feature that the general solution to the perturbation equations contain a single arbitrary function of spacetime coordinates. This implies a degeneracy of dynamics in the Stückelberg field sector at the linear perturbation level in this background. Physical significance of this degenercy depends on how the Stückelberg fields couple observable fields.
description: Minor corrections
Revisiting secondary CMB distortions due to kinetic Sunyaev-Zel'dovich effect from quasar bubbles before reionization
Creators: name: Acharya, Sandeep Kumar
name: Majumdar, Subhabrata
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We discuss the secondary cosmic microwave background (CMB) anisotropy due to kinetic Sunyaev-Zel'dovich (kSZ) effect from ionized bubbles around individual quasars prior to the reionization of the Universe. The bubbles create local ionization modulations which move with the large scale structure linear bulk flow and act as sources for kSZ. We improve upon previous calculations of this effect, using a halo model based description of quasar abundance, and find that the kSZ distortion power spectrum, $C_\ell$, from the bubbles to be sub-dominant to kSZ from patchy reionization driven by galaxies. However, the shape of the two $C_\ell$'s are very different with the quasar bubble $C_\ell$ having a peak at $\ell \approx 500-700$ whereas the $C_\ell$ due to patchy reionization flattening out at $\ell > 1000$ thus making it plausible to separate the two using $C_\ell$ template-fitting in a future survey like CMB-HD. Next, we look at the imprint of a single quasar bubble on the CMB and show that it can be detected in a high-resolution, ambitious effort like CMB-HD. A detection of a high redshift quasar bubble in the CMB would carry complimentary information to its detection in HI or Lyman-$α$ and a joint analysis can be used to break parameter degeneracies.
description: Updated to match the published version
Additional file 1 of Improving care for residents in long term care facilities experiencing an acute change in health status
Creators: name: Munene, Abraham
name: Lang, Eddy
name: Ewa, Vivian
name: Hair, Heather
name: Cummings, Greta
name: McLane, Patrick
name: Spackman, Eldon
name: Faris, Peter
name: Zuzic, Nancy
name: Quail, Patrick B.
name: George, Marian
name: Heinemeyer, Anne
name: Grigat, Daniel
name: McMillen, Mark
name: Reid, Shawna
name: Jayna Holroyd-Leduc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Additional file 1. OPTICS tool. Older Persons Transition in Care Success (OPTICS) tool (modified for use with ED transfers or community paramedicine visits). Questionnaire to be used to determine resident experiences with transfers to the ED or with visits from Community Paramedics.
Additional file 2 of Improving care for residents in long term care facilities experiencing an acute change in health status
Creators: name: Munene, Abraham
name: Lang, Eddy
name: Ewa, Vivian
name: Hair, Heather
name: Cummings, Greta
name: McLane, Patrick
name: Spackman, Eldon
name: Faris, Peter
name: Zuzic, Nancy
name: Quail, Patrick B.
name: George, Marian
name: Heinemeyer, Anne
name: Grigat, Daniel
name: McMillen, Mark
name: Reid, Shawna
name: Jayna Holroyd-Leduc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Additional file 2. Focus group questionnaire. Focus group questionnaire for health practitioners. Sample of Focus group questionnaire to be administered to health practitioners based on the Theoretical domains framework.
Imaging of double slit interference by scanning gate microscopy
Creators: name: Kolasiński, K.
name: Szafran, B.
name: Nowak, M. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider scanning gate microscopy imaging of the double slit interference for a pair of quantum point contacts (QPCs) defined within the two-dimensional electron gas. The interference is clearly present in the scattered electron wave functions for each of the incident subbands. Nevertheless, we find that the interference is generally missing in the experimentally accessible conductance maps for many incident subbands. We explain this finding on the basis of the Landauer approach. A setup geometry allowing for observation of the double slit interference by the scanning gate microscopy is proposed.
description: 6 pages, 7 figures
Bouncing cosmology in modified gravity with higher-order curvature terms
Creators: name: Singh, J. K.
name: Balhara, Harshna
name: Bamba, Kazuharu
name: Jena, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A bouncing scenario of a flat homogeneous and isotropic universe is explored by using the reconstruction technique for the power-law parametrization of the Hubble parameter in a modified gravity theory with higher-order curvature and trace of the energy-momentum tensor terms. It is demonstrated that bouncing criteria are satisfied so that the cosmological initial singularity can be avoided. In addition, it is shown that the equation of state parameter crosses the line of the phantom divide. In the present scenario, the universe is filled with perfect fluid around the bouncing point, in which the universe becomes highly unstable and a big bounce can be realized. Furthermore, it is found that extremal acceleration occurs at the bouncing point.
description: 14 pages, 13 figures
Transition Phenomena for the Attractor of an Iterated Function System
Creators: name: Leśniak, Krzysztof
name: Snigireva, Nina
name: Strobin, Filip
name: Vince, Andrew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Iterated function systems (IFSs) and their attractors have been central to the theory of fractal geometry almost from its inception. And contractivity of the functions in the IFS has been central to the theory of iterated functions systems. If the functions in the IFS are contractions, then the IFS is guaranteed to have a unique attractor. Recently, however, there has been an interest in what occurs to the attractor at the boundary between contractvity and expansion of the IFS. That is the subject of this paper. For a family $F_t$ of IFSs depending on a real parameter $t>0$, the existence and properties of two types of transition attractors, called the lower transition attractor $A_{\bullet}$ and the upper transition attractor $A^{\bullet}$, are investigated. A main theorem states that, for a wide class of IFS families, there is a threshold $t_0$ such that the IFS $F_t$ has a unique attractor $A_t$ for $tt_0$. At the threshold $t_0$, there is an $F_{t_0}$-invariant set $A^{\bullet}$ such that $A^{\bullet} = \lim_{t\rightarrow t_0} A_t$.
FACTORS OF AGRICULTURAL PRODUCTION AND THE POSSIBILITY OF AGRICULTURAL GMO PRODUCTION IN GHANA
Creators: name: LUCYNA, PRZEZBÓRSKA-SKOBIEJ
name: VANESSA, PHILIP-QUAQUE
name: LUCYNA, PRZEZBÓRSKA-SKOBIEJ
name: VANESSA, PHILIP-QUAQUE
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: genetically modified organisms (GMOs)
subject: factors of production
subject: land
subject: labour
subject: capital
subject: productivity
subject: agricultural production
subject: Ghana

description: This research work aims to pinpoint the actual production factors that are deteriorating and explore the essence of genetically modified organism (GMO) in helping to combat the degrading nature of production factors in Ghana. Agriculture has always employed dynamic processes from seed sowing to harvest over the years, but there are key factors that are non-negotiable in the sector, production factors. There has been diverse research and view on what production factors are inclusive in agriculture’s production factors. This notwithstanding, aside these divergent views, land, labour and capital still remain the most essential part of the production factors in agriculture. Ghana just like any other country has employed these factors but is lagging in hitting the productivity mark. There has been numerous research works, to dissect the roadblocks to agriculture yields in Ghana. Genetically modified organism as a section of biological innovation will be of an immerse and complete supplement to the production factors in Ghana if we look forward to achieving a bountiful agriculture harvest. The paper comprises selected facts and opinions on the GMO production development in Ghana in the nearest future and some factors influencing the development of GM food production, including land, labour and capital in Ghanaian agriculture.
Sprechangst im Mathematikunterricht und Zweitsprachenverwendungsangst im Mathematikunterricht
Creators: name: Schnieders, Maxime
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Sprechangst
subject: Zweitsprachenverwendungsangst
subject: Emotionen
subject: Sek I
subject: Sprache & Mathematik
subject: interdisziplinär
subject: 510

description: Die Teilhabe am mathematischen Diskurs wird als wichtige Gelingensbedingung für den Aufbau konzeptuellen Wissens erachtet (Maier & Schweiger, 1999, S. 64; Moschkovich, 2015, S. 57). Dies kann mit der Annahme darüber, wie Wissen im Mathematikunterricht (MU) intersubjektiv ausgehandelt wird, begründet werden: Ausgehend von zunächst individuellen Interpretationen mathematischer Gegenstände wird durch die Interaktion mit anderen ein gemeinsames Verständnis konstruiert (Voigt, 1995, S. 29 ff.). Der Tätigkeit des Sprechens wird damit eine zentrale Rolle beim Erwerb mathematischen Wissens zugeschrieben. Die mündliche Beteiligung am Unterricht scheint empirischen Befunden zufolge jedoch nicht allen Lernenden leicht zu fallen. Schmiedebach und Wegner (2019, S. 5) berichten beispielsweise von der Angst neu zugewanderter Schüler*innen, sich im Fachunterricht mündlich zu beteiligen. Darüber hinaus verweisen Chlebnikow und Backhaus (2017, S. 1) auf die Schwierigkeiten, die auch Lernende mit Deutsch als Muttersprache mit der Bildungssprache haben. In Anlehnung daran werden im Dissertationsprojekt die Emotionen Sprechangst im MU und Zweitsprachenverwendungsangst im MU in den Fokus der Aufmerksamkeit gerückt. Es wird untersucht, inwieweit die Angstemotionen im MU beobachtbar sind, wodurch sie entstehen und welche Auswirkungen sie haben; der vorliegende Beitrag fokussiert auf die Entstehungsbedingungen.
One particle quantum equation in a de Sitter spacetime
Creators: name: Frick, Rudolf A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a free particle in a de Sitter spacetime. We use a picture in which the analogs of the Schrödinger operators of the particle are independent of both the time and the space coordinates. These operators induce operators which are related to Killing vectors of the de Sitter spacetime.
description: 12 pages
Additional file 4 of Improving care for residents in long term care facilities experiencing an acute change in health status
Creators: name: Munene, Abraham
name: Lang, Eddy
name: Ewa, Vivian
name: Hair, Heather
name: Cummings, Greta
name: McLane, Patrick
name: Spackman, Eldon
name: Faris, Peter
name: Zuzic, Nancy
name: Quail, Patrick B.
name: George, Marian
name: Heinemeyer, Anne
name: Grigat, Daniel
name: McMillen, Mark
name: Reid, Shawna
name: Jayna Holroyd-Leduc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Additional file 4. SPIRIT diagram. SPIRIT diagram for plan for study.
RSA cryptosystem for rings with commuting ideals
Creators: name: Nasrutdinov, Marat
name: Tronin, Serge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: G.0
subject: 94A60, 16-02, 16U80

description: This article presents a generalization of the RSA cryptosystem for rings with commuting ideals. An analogue of the Euler function for ideals and the concept of an RSA-ideal are defined. An analog of a cryptosystem for the ring with commuting ideals is formulated and a description of the RSA-ideals for which this is possible is obtained.
description: 7 pages
Reduced dynamics and Lagrangian submanifolds of symplectic manifolds
Creators: name: Andrés, E. García-Toraño
name: Guzmán, E.
name: Marrero, J. C.
name: Mestdag, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D05, 53D12, 70G65, 70H03, 70H05, 70H33

description: In this paper, we will see that the symplectic creed by Weinstein "everything is a Lagrangian submanifold" also holds for Hamilton-Poincaré and Lagrange-Poincaré reduction. In fact, we show that solutions of the Hamilton-Poincaré equations and of the Lagrange-Poincaré equations are in one-to-one correspondence with distinguished curves in a Lagrangian submanifold of a symplectic manifold. For this purpose, we will combine the concept of a Tulczyjew triple with Marsden-Weinstein symplectic reduction.
description: 26 pages
Statistical-mechanical study of deep Boltzmann machine given weight parameters after training by singular value decomposition
Creators: name: Ichikawa, Yuma
name: Hukushima, Koji
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Deep learning methods relying on multi-layered networks have been actively studied in a wide range of fields in recent years, and deep Boltzmann machines(DBMs) is one of them. In this study, a model of DBMs with some properites of weight parameters obtained by learning is studied theoretically by a statistical-mechanical approach based on the replica method. The phases characterizing the role of DBMs as a generator and their phase diagram are derived, depending meaningfully on the numbers of layers and units in each layer. It is found, in particular, that the correlation between the weight parameters in the hidden layers plays an essential role and that an increase in the layer number has a negative effect on DBM's performance as a generator when the correlation is smaller than a certain threshold value.
description: 12 pages, 10 figures
Conditioned backward and forward times of diffusion with stochastic resetting: a renewal theory approach
Creators: name: Masó-Puigdellosas, Axel
name: Campos, Daniel
name: Méndez, Vicenç
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Stochastic resetting can be naturally understood as a renewal process governing the evolution of an underlying stochastic process. In this work, we formally derive well-known results of diffusion with resets from a renewal theory perspective. Parallel to the concepts from renewal theory, we introduce the conditioned backward and forward times for stochastic processes with resetting to be the times since the last and until the next reset, given that the current state of the system is known. We focus on studying diffusion under Markovian and non-Markovian resetting. For these cases, we find the conditioned backward and forward time PDFs, comparing them with numerical simulations of the process. In particular, we find that for power-law reset time PDFs with asymptotic form $φ(t)\sim t^{-1-α}$, significant changes in the properties of the conditioned backward and forward times happen at half-integer values of $α$. This is due to the composition between the long-time scaling of diffusion $P(x,t)\sim 1/\sqrt{t}$ and the reset time PDF.
description: Submitted to Physical Review E
title: Qualität in Schule und Betrieb: Forschungsergebnisse und gute Praxis
Creators: name: Bals, Thomas
name: Hegmann, Kai
name: Wilbers, Karl
name: Friedrich-Alexander-Universität Erlangen-Nürnberg
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2008
Subjects: subject: 370 Bildung und Erziehung

description: Die 15. Hochschultage Berufliche Bildung fanden im Frühjahr 2008 am Lehrstuhl für Wirtschaftspädagogik und Personalentwicklung der Universität Erlangen-Nürnberg am Hochschulstandort Nürnberg statt. Das Thema der Tagung „Qualität in Schule und Betrieb“ wurde von etwa 1.500 Teilnehmenden aus Forschung, Schulen, Unternehmen und Politik in 17 Fachtagungen, 26 Workshops, einer Posterausstellung, zwei Kurzvortragsbänden, einem Dutzend Exkursionen sowie 21 Ausbildungsprojekten bearbeitet.
description: Texte zur Wirtschaftspädagogik und Personalentwicklung, 1
Cicadina (Insecta: Homoptera) of the Eastern Rhodopes (Bulgaria)
Creators: name: Gjonov, Ilia
Publisher: name: Zenodo
Year: 2004
Subjects: Cicadina, Auchenorrhyncha, Homoptera, Bulgaria, Rhodopes, distribution

description: On the basis of published and original data 128 species of Cicadina (Homoptera) are reported from the Bulgarian part of the Eastern Rhodopes. They belong to 12 families: Cixiidae – 7 species, Delphacidae – 16, Dictyopharidae – 5, Tettigometridae – 10, Caliscelidae – 2, Issidae – 8, Flatidae – 1, Cicadidae – 1, Cercopidae – 2, Aphrophoridae – 6, Membracidae – 2 and Cicadellidae – 68 species. That is about 20% of known Bulgarian species. New to the region are 62 species and 4 of them are new to the Bulgarian fauna: Tettigometra fusca, Tettigometra vitellina, Opsius cypriacus and Thamnotettix creticus.
DEVELOPMENT OF ORGANIC FARMING AND ITS ENVIRONMENT IN POLAND IN THE LIGHT OF THE EUROPEAN GREEN DEAL CHALLENGES
Creators: name: WIOLETTA, WRZASZCZ
name: WIOLETTA, WRZASZCZ
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: organic farming
subject: European Green Deal
subject: Farm to Fork Strategy
subject: Biodiversity Strategy
subject: sustainable development of agriculture

description: The aim of European Green Deal (EGD) is to implement a pro-environmental and pro-climate policy, which should be translated into economic practice. EGD concerns agriculture, including organic, hence the importance of recognizing the current path of development of this management system and future prospects. The aim of this paper is illustration of current challenges in organic farming and its environment in Poland, taking into account European strategic and market goals. The population of organic farms and other organic entities operating in this segment were analyzed. The period covered 2004- 2020, and data of Agricultural and Food Quality Inspection and Statistics Poland. Indicator analysis methods were used and trends were established. A comparison of the statistics for 2020 and 2004 showed the development of organic farming in Poland, taking into account the farms’ number and the agricultural land in organic system. The period 2004-2020 was not homogeneous, and the last years can be considered as a period of stagnation. In the adopted perspective, the production profile of organic farms changed, which more and more often carried out only crop production, omitting livestock production. The further development of organic farming will be an important challenge, also taking into account the level of development of the market environment of organic farms, in particular the number of processors and operators involved in the supply of certified seed. The main determinant of the development of organic farming in Poland was, and in the next few years probably will be, the institutional factory.
Classification of Fermi-LAT unidentified gamma-ray sources using CatBoost gradient boosting decision trees
Creators: name: Coronado-Blázquez, Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The latest $\textit{Fermi}$-LAT gamma-ray catalog, 4FGL-DR3, presents a large fraction of sources without clear association to known counterparts, i.e., unidentified sources (unIDs). In this paper, we aim to classify them using machine learning algorithms, which are trained with the spectral characteristics of associated sources to predict the class of the unID population. With the state-of-the-art $\texttt{CatBoost}$ algorithm, based on gradient boosting decision trees, we are able to reach a 67% accuracy on a 23-class dataset. Removing a single of these classes -- blazars of uncertain type -- increases the accuracy to 81%. If interested only in a binary AGN/pulsar distinction, the model accuracy is boosted up to 99%. Additionally, we perform an unsupervised search among both known and unID population, and try to predict the number of clusters of similar sources, without prior knowledge of their classes. The full code used to perform all calculations is provided as an interactive Python notebook.
description: 8 pages, 8 figures. Matches the accepted MNRAS version
Das Geometrische Quadrat: Wie reagieren Lernende auf ein historisches Unterrichtsmittel?
Creators: name: Schöneburg-Lehnert, Silvia
name: Krohn, Thomas
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2023
Subjects: subject: Geometrisches Quadrat
subject: Geschichte der Mathematik
subject: History as a tool
subject: Organum mathematicum
subject: Sek I
subject: Geschichte & Philosophie der Mathematik
subject: Geometrie
subject: interdisziplinär
subject: 510

description: Im folgenden Beitrag werden einige konzeptionelle Überlegungen zur Einbeziehung von Mathematikgeschichte des 17. Jahrhunderts im Mathematikunterricht am Beispiel des historischen Unterrichtsmaterials „Organum mathematicum“, speziell am Inhalt des Geometrischen Quadrats in dessen Geometrie- Fach thematisiert, die damit verbundene Quellenarbeit erläutert sowie Erfahrungen aus dem Unterricht vorgestellt.
Synchronization of persistent oscillations in spin systems with non-local dissipations
Creators: name: Li, Xingli
name: Li, Yan
name: Jin, Jiasen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the synchronization phenomenon in the quantum few-body system of spins with the non-local dissipation. Without the external driving, we find that the system can exhibit stable oscillatory behaviors in the long-time dynamics accompanied by the appearance of the purely imaginary eigenvalues of the Liouvillian. Moreover, the oscillations of the next-nearest-neighboring spins are completely synchronized revealed by the quantum trajectory analysis within the stochastic Schrödinger equation. The possibility of the appearance of the long-time oscillations in infinite-size lattice by means of cluster mean-field approximation is also discussed.
description: 12 pages, 8 figures, accepted version
Dynamical heat engines with non--Markovian reservoirs
Creators: name: Cavaliere, Fabio
name: Carrega, Matteo
name: De Filippis, Giulio
name: Cataudella, Vittorio
name: Benenti, Giuliano
name: Sassetti, Maura
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss whether, and under which conditions, it is possible to realize a heat engine simply by dynamically modulating the couplings between the quantum working medium and thermal reservoirs. For that purpose, we consider the paradigmatic model of a quantum harmonic oscillator, exposed to a minimal modulation, that is, a monochromatic driving of the coupling to only one of the thermal baths. We demonstrate, at any order in the system/bath coupling strength, that in this setup non--Markovianity of the bath is a necessary condition to obtain a heat engine. In addition, we identify suitable structured environments for the engine to approach the ideal Carnot efficiency. Our results open up new possibilities for the use of non--Markovian open quantum systems for the construction and optimization of quantum thermal machines.
description: Final revision as published on Physical Review Research: 19 pages, 7 color figures
Additional file 3 of Improving care for residents in long term care facilities experiencing an acute change in health status
Creators: name: Munene, Abraham
name: Lang, Eddy
name: Ewa, Vivian
name: Hair, Heather
name: Cummings, Greta
name: McLane, Patrick
name: Spackman, Eldon
name: Faris, Peter
name: Zuzic, Nancy
name: Quail, Patrick B.
name: George, Marian
name: Heinemeyer, Anne
name: Grigat, Daniel
name: McMillen, Mark
name: Reid, Shawna
name: Jayna Holroyd-Leduc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology

description: Additional file 3. SPIRIT checklist. SPIRIT guidelines checklist for article.
Quantum Black Hole Wave Packet: Average Area Entropy and Temperature Dependent Width
Creators: name: Davidson, Aharon
name: Yellin, Ben
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A quantum Schwarzschild black hole is described, at the mini super spacetime level, by a non-singular wave packet composed of plane wave eigenstates of the momentum Dirac-conjugate to the mass operator. The entropy of the mass spectrum acquires then independent contributions from the average mass and the width. Hence, Bekenstein's area entropy is formulated using the $\langle \text{mass}^2 \rangle$ average, leaving the $\langle \text{mass} \rangle$ average to set the Hawking temperature. The width function peaks at the Planck scale for an elementary (zero entropy, zero free energy) micro black hole of finite rms size, and decreases Doppler-like towards the classical limit.
description: 5 PRD pages, 1 figure; v.2 minor typo corrections
Additional file 1 of An observational cohort study of health outcomes and costs associated with early pregnancy assessment units in the UK
Creators: name: Keeney, Edna
name: Memtsa, Maria
name: Goodhart, Venetia
name: Jurkovic, Davor
name: Ambler, Gareth
name: Khan, Nazim
name: Round, Jeff
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.