cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlations turn electronic structure of finite-layer nickelates upside down
Creators: name: Worm, Paul
name: Si, Liang
name: Kitatani, Motoharu
name: Arita, Ryotaro
name: Tomczak, Jan M.
name: Held, Karsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent discovery of superconductivity in the pentalayer nickelate Nd$_6$Ni$_5$O$_{12}$ [Nature Materials 10.1038], we calculate its electronic structure and superconducting critical temperature. We find that electronic correlations are essential for pushing Nd$_6$Ni$_5$O$_{12}$ into the superconducting doping range as they shift the electron pockets above the Fermi energy. As a consequence, Nd$_6$Ni$_5$O$_{12}$ can be described with a single $d_{x^2-y^2}$ orbital per Ni. Instead, for the bilayer nickelate Nd$_3$Ni$_2$O$_6$ we find correlations to drive the system into a three-orbital regime also involving the Ni $d_{xz,yz}$ states. We suggest, however, that single-orbital physics with optimal doping can be restored by substituting 60% of the trivalent Nd or La by tetravalent Zr.
description: 16 pages totally, 4 figures in main text and 9 figures in supplementary materials
Outer regions of the merging system Arp 270
Creators: name: Zasov, A.
name: Saburova, A.
name: Katkov, I.
name: Egorov, O.
name: Afanasiev, V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Arp 270 (NGC 3395 and NGC 3396) is the system of two actively star-forming late-type galaxies in contact, which already have experienced at least one close encounter in the past. We performed long-slit observations of peripheric regions of this merging system with the 6-m telescope of SAO RAS. Line-of-sight velocity distribution along the slits was obtained for gas and stellar population. We found that the stellar component of NGC 3395 differs by its velocity from the emission gas component in the extended region in the periphery, which evidences a spatial separation of stars and gas in the tidally disturbed galaxy. Gas abundances obtained by different methods demonstrate that both galaxies are mildly underabundant (log(O/H) $\approx 8.4$) without significant variations of metallicity along the slits. By comparing stellar and gaseous masses of galaxies we came to conclusion that the chemical evolution of gas is badly described by the closed box model. It allows us to admit that the significant part of interstellar gas was swept out of galaxies during the preceding encounter(s). A special attention was paid to the extended kpc-size island of star formation between the galaxies. We have not found neither noticeable kinematic decoupling of this region from the adjacent areas, nor any peculiarities of its emission spectra, which evidences that it was formed recently from the gas of NGC 3395 in the transition region between the colliding galaxies.
description: 10 pages, 6 figures, accepted by MNRAS
(1055) Thomas Ansdell Romer
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Precision spectroscopy of the hydrogen molecular ions: present status of theory and experiment
Creators: name: Korobov, Vladimir I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We review recent experiments on HD$^+$ spectroscopy. The reduced proton-deuteron mass to electron mass ratio, $μ_{pd}/m_e$, is inferred from the comparison of theory and experiment. Theoretical issues related to the calculations of the spin structure, which are currently the main limiting factor of theoretical accuracy, are discussed.
description: 4 pages, 3 Tables, Proceedings of the Conference on Precision Physics and Fundamental Physical Constants, Slovakia, 2021
L’implementazione di un Piano del Cibo: il caso di Castel del Giudice
Creators: name: Curcio, Francesca
name: Mazzocchi, Giampiero
name: Virtuoso, Manuela
name: Valentino Mosesso, Carmine
Publisher: name: Re|Cibo
Year: 2023

description: Partire o restare? È questa la domanda più frequente che si pongono le persone che vivono al margine. Gli abitanti di Castel del Giudice, insieme all’Amministrazione comunale, hanno deciso di mettersi in gioco e praticare nuove forme del riabitare i luoghi, facendo leva sulle potenzialità del sistema agroalimentare locale. L’articolo esplora l’evoluzione della politica locale del cibo di Castel del Giudice con l’obiettivo di valutarne la coerenza rispetto al Piano del Cibo adottato nel 2019 dopo un percorso di costruzione dal basso.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Il progetto Nutrire Trento: evoluzione e aggiornamento dell’esperienza
Creators: name: Forno, Francesca
name: Andreola, Mattia
Publisher: name: Re|Cibo
Year: 2023

description: Questo contributo aggiorna la riflessione sull’esperienza del Tavolo di lavoro denominato Nutrire Trento, una iniziativa promossa congiuntamente dal Comune e dall’Università di Trento avviata nel 2017 nell’ambito del progetto UniCittà. Nel contributo a firma di Forno et al. (2019) pubblicato nel volume “Lo spazio della politiche locali del cibo: temi, esperienze e prospettive” si era posta l’attenzione in particolare sui fattori che favoriscono e ostacolano l’implementazione di percorsi verso una politica alimentare per le città mettendo a confronto due esperienze di città medie, quella di Trento e quella di Bergamo, avviate seguendo un simile percorso. Questo contributo riprende alcune parti sviluppate all’interno di quella riflessione aggiornando l’esperienza trentina con i sui più recenti sviluppi.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Linking Accountability and Service Delivery in a Decentralizing System: An Analysis of Human Resource Management Powers in Malawi’s Education Sector
Creators: name: Michela Del Mastro
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: While decentralization has long been considered an effective tool for improving service delivery, the theoretical benefits of this policy have not always materialized in practice. I aim to understand this gap between theory and practice by exploring the degree of human resource management (HRM) power possessed by district education officials in Malawi. I then consider how insufficient power may lead to struggles with accountability and service delivery. Through semi-structured interviews and a survey, I probe the experiences of district education officials, who are tasked with managing teachers within their district. I contextualize district officials’ perceptions of HRM power with interviews from key informants working in the central government. Through thematic analysis, I identify four moments in the HRM system where decision-making power is perceived to be essential: hiring, disciplining, dismissing, and promoting. I name these moments ‘Inflection Points for Better Service Delivery,’ and adapt Bossert’s (1998) “decision space” model as an analytical framework to assess whether officials have narrow, moderate, or wide decision-making power at each of these crucial moments. I conclude that participants largely perceive power at each inflection point to be insufficient for holding teachers accountable, which negatively impacts service delivery outputs in the classroom. Despite these challenges, however, I find that respondents are hopeful about the future of decentralization. While they acknowledge that the process is slow and that there are barriers to overcome, they are equally positive about achieving a future in which they might have the power to enforce better service delivery for the citizens of Malawi.
Asymptotics for Erdos-Solovej Zero Modes in Strong Fields
Creators: name: Elton, Daniel M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35P20, 81Q10, 35Q40, 35J46

description: We consider the strong field asymptotics for the occurrence of zero modes of certain Weyl-Dirac operators on $\mathbb{R}^3$. In particular we are interested in those operators $\mathcal{D}_{B}$ for which the associated magnetic field $B$ is given by pulling back a $2$-form $β$ from the sphere $\mathbb{S}^2$ to $\mathbb{R}^3$ using a combination of the Hopf fibration and inverse stereographic projection. If $\int_{\mathbb{S}^2}β\neq0$ we show that \[ \sum_{0\le t\le T}\mathrm{dim}\,\mathrm{Ker}\,\mathcal{D}_{tB} =\frac{T^2}{8π^2}\,\biggl\lvert\int_{\mathbb{S}^2}β\biggr\rvert\,\int_{\mathbb{S}^2}\lvertβ\rvert+o(T^2) \] as $T\to+\infty$. The result relies on Erdős and Solovej's characterisation of the spectrum of $\mathcal{D}_{tB}$ in terms of a family of Dirac operators on $\mathbb{S}^2$, together with information about the strong field localisation of the Aharonov-Casher zero modes of the latter.
description: 24 pages, typos corrected, some minor rewording
(1052) Eliza Jane [Stevens]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Salix alaxensis (Anders.)
Creators: name: Coville, Frederick V.
Publisher: name: Zenodo
Year: 1900

description: A description of Salix alaxensis. In "Papers from the Harriman Alaska Expedition. — IV. The Tree Willows of Alaska. Frederick V. Coville. Issued Oct. 10, 1900."
description: Downloaded from the Biodiversity Heritage Library.
Ranked General Lineal Models from Experimentally flight-impaired females show higher levels of extra-pair paternity in the pied flycatcher Ficedula hypoleuca
Creators: name: Plaza, Mireia
name: Cantarero, Alejandro
name: Gil, Diego
name: Moreno, Juan
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Results from ranking the GLMs within 4 units from the model with lowest AICc and QAICc
IMPROVING INFORMED CONSENT FOR EPIDURAL ANESTHESIA TO INCLUDE POSTDURAL HEADACHE EDUCATION
Creators: name: Chloe Gomez
Publisher: name: Zenodo
Year: 2024
Subjects: informed consent
epidural anesthesia informed consent
education module for nurse anesthetists
postdural puncture headache

description: The purpose of this Doctor of Nursing Practice scholarly project was to improve the epidural informed consent process for CRNAs at Kaiser Permanente San Bernardino County by implementing an educational module emphasizing a standardized epidural informed consent to include PDPH education for laboring parturients. Background - CRNAs are ethically responsible for informed consent for all procedures. Parturients are a unique challenge to obtaining informed consent due to the labor process and its environment. Lack of standardization for obtaining informed consent from this population can lead to unintentional omission of risks of the procedure, including postdural puncture headache. Methodology - This was a pilot study with data collected At Kaiser San Bernardino County from September 6, 2023 to November 19, 2023. Participants were 15 CRNAs (n=15) that worked the most OB CRNA shifts from April 2022 to April 2023. Pre-post intervention evaluation was based on an abstraction tool and suggested scoring approach developed by the British Journal of Medicine. A paired t-test statistical analysis compared pre-education module consent scores with post-education module scores. Results - The difference between the pre-education module scores and the post-education module scores was statistically significant (p<0.001). Additionally, there was no correlation between the participant’s demographic data and their pre- and post-intervention scores, including how many years worked as a CRNA. Thus, standardization of informed consent processes improved the quality of informed consent, increasing patient education on postdural puncture headaches.
Supplimentary material from Atomic force microscopy-based indentation of cells: modelling the effect of a pericellular coat
Creators: name: Argatov, Ivan
name: Jin, Xiaoqing
name: Mishuris, Gennady
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Biophysics
subject: 110601 Biomechanics
subject: FOS: Health sciences
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: pdf file with text and graphs
Comparing growth rate patterns in Mercenaria mercenaria and M. campechiensis shells from North Carolina and Florida, USA.
Creators: name: Turek,Sage
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: Mercenaria mercenaria and M. campechiensis are ecologically and economically important bivalves found along the US Mid Atlantic and Gulf Costal Plains. Morphological characteristics have been used to distinguish between the two species. These characteristics are not always diagnostic of genotype because the two species can hybridize where they co-occur, and some morphologic characteristics may not be preserved in fossil specimens (e.g., pigmentation and ridges). Such uncertainty can potentially have important implications on life history studies of fossil and archaeological Mercenaria shells. This study tests the hypothesis that modern M. mercenaria and M. campechiensis shells from the same location will have similar life history patterns. We test this hypothesis using the von Bertalanffy growth (VBG) equation to assess growth rate. We collected two populations of specimens alive from Wilmington, NC (n = 39; n = 56) and Pineland Island Sound (PIS), FL (n = 8), and were given one population identified as M. campechiensis from a local clam farmer (n = 33). We also analyzed M. mercenaria and M. campechiensis shells from nearby Sanibel-Captiva Island (SCI), FL collected in the 1930s (provided by the Florida Museum of Natural History) (n = 14 for each species). There was a significant difference between the two North Carolina populations (p = 6.765 e-09) and a significant change between Florida populations collected in the 1930s and Florida populations collected in 2019. This suggests that environmental conditions are the main driver in differences in k-values between populations. We also hypothesize that latitudinal differences are not affecting the growth rates of Mercenaria. Future work will identify species from our live-collected specimens using a polymerase chain reaction (PCR) analysis of each shell’s nuclear genotype, allowing us to validate the assumption that species-level identification between M. mercenaria and M. campechiensis from fossil and archaeological deposits for life history studies is not required.
Observational Evidence for a Dark Side to NGC5128's Globular Cluster System
Creators: name: Taylor, Matthew
name: Puzia, Thomas
name: Gomez, Matias
name: Woodley, Kristin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study of the dynamical properties of 125 compact stellar systems (CSSs) in the nearby giant elliptical galaxy NGC5128, using high-resolution spectra (R 26,000) obtained with VLT/FLAMES. Our results provide evidence for a new type of star cluster, based on the CSS dynamical mass scaling relations. All radial velocity (v_r) and line-of-sight velocity dispersion (sigma_los) measurements are performed with the penalized pixel fitting (ppxf) technique, which provided sigma_ppxf estimates for 115 targets. The sigma_ppxf estimates are corrected to the 2D projected half-light radii, sigma_{1/2}, as well as the cluster cores, sigma_0, accounting for observational/aperture effects and are combined with structural parameters, from high spatial resolution imaging, in order to derive total dynamical masses (M_dyn) for 112 members of NGC5128's star cluster system. In total, 89 CSSs have dynamical masses measured for the first time along with the corresponding dynamical mass-to-light ratios (Upsilon_V^dyn). We find two distinct sequences in the Upsilon_V^dyn - M_dyn plane, which are well approximated by power laws of the forms Upsilon_V^dyn M_dyn^0.33+\-0.04 and Upsilon_V^dyn - M_dyn^0.79+\-0.04. The shallower sequence corresponds to the very bright tail of the globular cluster luminosity function (GCLF), while the steeper relation appears to be populated by a distinct group of objects which require significant dark gravitating components such as central massive black holes and/or exotically concentrated dark matter distributions. This result would suggest that the formation and evolution of these CSSs are markedly different from the "classical" globular clusters in NGC5128 and the Local Group, despite the fact that these clusters have luminosities similar to the GCLF turn-over magnitude. We include a thorough discussion of myriad factors potentially influencing our measurements.
description: 21 pages, 14 figures, accepted for publication in The Astrophysical Journal
Tomographic entanglement indicators in frequency combs and Talbot carpets
Creators: name: Sharmila, B.
name: Lakshmibala, S.
name: Balakrishnan, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent theoretical investigations on tomographic entanglement indicators have showcased the advantages of the tomographic approach in the context of continuous-variable (CV), spin and hybrid quantum systems. Direct estimation of entanglement using experimental data from the IBM quantum computing platform and NMR experiments have also been carried out in earlier work. A similar investigation in the context of CV systems is necessary to fully assess the utility of our tomographic approach. In this paper, we highlight the advantages of our approach in the context of experiments reported in the literature on two CV systems, namely, entangled Talbot carpets and biphoton frequency combs. We use the tomographic entanglement indicator to assess the extent of entanglement between a pair of Talbot carpets and demonstrate that this provides a simpler and more direct procedure compared to the one suggested in the experiment. We also establish that the tomograms corresponding to the two biphoton frequency combs carry clear entanglement signatures that distinguish between the two states.
description: 13 pages, 4 figures
Una food policy federiciana: il Food Policy Hub di Andria
Creators: name: Fattibene, Daniele
name: Fattibene, Nicola
Publisher: name: Re|Cibo
Year: 2023

description: Le città sono diventate degli attori chiave nella trasformazione dei sistemi alimentari. In Puglia, la città di Andria ha avviato un progetto di innovazione sociale che ruota intorno al Food Policy Hub. Attraverso 4 fasi che ruotano intorno a 5 leve strategiche, l’Hub si pone come obiettivo di fungere da polo di aggregazione e confronto capace non solo di accompagnare e aumentare l’efficienza della macchina amministrativa comunale sui temi dell’alimentazione sostenibile, ma anche di favorire delle importanti ripercussioni dal punto di vista economico, ambientale ed educativo sul territorio circostante, agendo su varie politiche. L’articolo si pone come obiettivo quello di presentare le attività e le potenzialità del Food Policy Hub di Andria, riflettendo allo stesso tempo sugli ostacoli che occorrerà affrontare per garantire un’implementazione efficace del progetto.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Feynman's i-epsilon prescription, almost real spacetimes, and acceptable complex spacetimes
Creators: name: Visser, Matt
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Feynman's i-epsilon prescription for quantum field theoretic propagators has a quite natural reinterpretation in terms of a slight complex deformation of the Minkowski spacetime metric. Though originally a strictly flat-space result, once reinterpreted in this way, these ideas can be naturally extended first to semi-classical curved-spacetime QFT on a fixed background geometry and then, (with more work), to fluctuating spacetime geometries. There are intimate connections with variants of the weak energy condition. We shall take the Lorentzian signature metric as primary, but note that allowing the complex deformation to become large leads to a variant of Wick rotation, and more importantly leads to physically motivated constraints on the configuration space of acceptable off-shell geometries to include in Feynman's functional integral when attempting to quantize gravity. Ultimately this observation allows one to connect the discussion back to recent ideas on "acceptable" complex metrics, in the Louko-Sorkin and Kontsevich-Segal-Witten sense, with Lorentzian signature spacetimes occurring exactly on the boundary of the set of "acceptable" complex metrics. By adopting the tetrad formalism we explicitly construct the most general set of acceptable complex metrics satisfying the 0-form, 1-form, and 2-form acceptability conditions.
description: V1: 22 pages; 50 references; V2: Now 27 pages; 54 references. Significant improvement (and restructuring) in presentation; now includes a tetrad analysis. V3: Now 33 pages; 55 references. Significant pedagogical improvements, sign conventions more carefully explained and standardized. This version accepted for publication in JHEP
Critical exponents of model with matrix order parameter from resummation of six-loop results for anomalous dimensions
Creators: name: Lebedev, N. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this contribution an application of two techniques for resummation of asymptotic series namely Borel-Pade technique and Borel-Leroy technique with conformal mapping to the case of a model with multiple coupling constants will be discussed and the results of application of this methods to the $O(n)$-symmetric $ϕ^{4}$ model with an antisymmetric tensor order parameter will be presented.
Quantum fluctuations, particles and entanglement: a discussion towards the solution of the quantum measurement problems
Creators: name: Konishi, Kenichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The quantum measurement problems are revisited from a new perspective. One of the main ideas of this work is that the basic entities of our world are various types of particles, elementary or composite. It follows that each elementary process, hence each measurement process at its core, is a spacetime, pointlike, event. Another key idea is that, when a microsystem $ψ$ gets into contact with the experimental device, factorization of $ψ$ rapidly fails and entangled mixed states appear. The wave functions for the microsystem-apparatus coupled systems for different measurement outcomes then lack overlapping spacetime support. It means that the aftermath of each measurement is a single term in the sum: a "wave-function collapse". Our discussion leading to a diagonal density matrix, $ρ= {\rm diag} ( |c_1|^2, \ldots, |c_n|^2, \ldots )$ shows how the information encoded in the wave function $|ψ\rangle = \sum_n c_n | n \rangle$ gets transcribed, via entanglement with the experimental device and environment, into the relative frequencies ${\cal P}_n = |c_n|^2$ for various experimental results $F=f_n$. These results represent new, significant steps towards filling in the logical gaps in the standard interpretation based on Born's rule, and replacing it with a more natural one. Accepting objective reality of quantum fluctuations, independent of any experiments, and independently of human presence, one renounces the idea that in a fundamental, complete theory of Nature the result of each single experiment must necessarily be predictable. A few well-known puzzles such as the Schrödinger cat conundrum and the EPR paradox are briefly reviewed: they can all be naturally explained away.
description: 44 pages, 2 figures
(1049) Alice [Romer]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Glukometer, Honig und Tee
Creators: name: Heil, Ingeborg
name: Koch, Kerstin
name: Bohrmann, Johannes
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2020

description: Am Beispiel der Saccharase können einfache Schulexperimente zum Inhaltsfeld Energiestoffwechsel durchgeführt werden. Das Enzym, auch Invertase genannt, ist in Honig enthalten und katalysiert die Spaltung von Saccharose in Fruktose und Glukose. Unter geeigneten Versuchsbedingungen kann letztere mittels eines herkömmlichen Glukometers gemessen werden und ist ein Maß für die Saccharaseaktivität. Es werden Experimente zu verschiedenen Faktoren, die diese beeinflussen, vorgestellt.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Vol 3 No 2 (2020): Bienen, Blüten, bilingual
Fatigue and Kinesiophobia: Examining Load in Collegiate Athletes After Anterior Cruciate Ligament Reconstruction
Creators: name: Pitsinger, Taylor
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: Fatigue was hypothesized to influence the loading profiles of athletes after anterior cruciate ligament reconstruction (ACLR) who have returned to sport, and athletes after ACLR who have returned to sport were hypothesized to report higher kinesiophobia levels than their healthy, matched teammates. The aims of this study were to (1) assess within-session reliability of quantifying the magnitude and symmetry of average impact load and cumulative impact load in athletes without a history of anterior cruciate ligament (ACL) injury, (2) investigate the effects of fatigue on the loading profiles of athletes after ACLR who have returned to sport, and (3) evaluate kinesiophobia levels in athletes after ACLR who have returned to sport compared to their healthy, matched teammates. Ten Division 1 field sport athletes completed the Tampa Scale for Kinesiophobia (TSK-11) and two trials of the unanticipated agility task; the trials were separated by a 10-minute rest period for the control group and a fatigue protocol for the ACLR group. (1) In the control group, the non-dominant limb displayed good reliability for cumulative impact load (0.794) and average impact load (0.824). (2) There was a non-significant trend such that fatigue altered cumulative impact load in athletes after ACLR who returned to sport (p = .051), and fatigue did not significantly exacerbate asymmetrical cumulative and average impact loading. (3) Athletes after ACLR who have returned to sport did not significantly differ in their reports of kinesiophobia levels relative to their healthy, matched teammates; this non-significant trend opposed the hypothesized direction.
Gravitational collapse of spherical shells of fluid in the isotropic homogeneous universe
Creators: name: Yokoyama, Shuichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate gravitational collapse of thick shell of fluid in the isotropic homogeneous universe without radiation described by the Einstein gravity with cosmological constant. We construct analytic solutions of this kind interpolating the Friedmann-Lemaitre-Robertson-Walker (FLRW) metric and the de-Sitter Schwarzschild black hole one by the Gullstrand-Painlevé one. After determining the scale factor for a perfect fluid coexisting with cosmological constant, we determine the orbit of the collapsing shells of fluid from the continuity condition for density and the perpendicular component of pressure at interface. However the continuity condition cannot fix the orbit when there does not exist a perfect fluid inside the shells. In this case we determine the orbit from an equation of state for the fluid consisting a shell near the surface. Finally we confirm that the total energy defined in arXiv:2005.13233 is independent of the given time evolution in this system.
description: 1+22 pages, 6 figures, v2: clarification of the scale factor connecting to inflationary period, v3: further clarification, minor improvements, figures, references added, v4: reorganization, minor revisions, published version
(1050) Rosalie Eliza Chester
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Results of multiple group analysis from Are global and specific interindividual differences in cortical thickness associated with facets of cognitive abilities, including face cognition?.
Creators: name: Meyer, Kristina
name: Garzón, Benjamín
name: Lövdén, Martin
name: Hildebrandt, Andrea
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: Fit statistics of multiple group models testing for invariance across gender groups
CRISPR/Cas9: Vom Fachwissen zum Bewerten
Creators: name: Christ, Laura
name: Charapitsa, Iryna
name: Dahm, Ralf
name: Dreesmann, Daniel
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2020

description: Das CRISPR/Cas9-System hat aufgrund der vielfältigen Anwendungsmöglichkeiten zu einer breiten öffentlichen Debatte geführt und ist aus dem heutigen Dialog von Biologen, Biotechnologen, Medizinern und Agrarwissenschaftlern nicht mehr wegzudenken. Um Schülerinnen und Schülern höherer Jahrgangsstufen näherzubringen, was sich hinter dieser scheinbar genialen Methode der Gentechnik verbirgt, wird in diesem Artikel eine erprobte Unterrichtseinheit vorgestellt. In dieser Einheit soll nicht nur die Funktionsweise des CRSIRP/Cas9-Systems erarbeitet werden. Sie soll auch den aktuellen Forschungsstand sowie eine eigene ethische Bewertung dieses Verfahrens vermitteln.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Vol 3 No 2 (2020): Bienen, Blüten, bilingual
Viaggio verso la sostenibilità: un’opportunità per il settore della distribuzione automatica di cibo e bevande
Creators: name: Bertossi, Alberto
name: Marangon, Francesco
name: Troiano, Stefania
Publisher: name: Re|Cibo
Year: 2023

description: Il presente contributo mira a discutere sul ruolo del settore della distribuzione automatica di cibo e bevande in un’ottica di sviluppo sostenibile. Lungo il testo verranno presentate: a) le principali problematiche che il settore deve affrontare perseguendo il suo viaggio verso la sostenibilità; b) alcuni esempi di interventi sul prodotto, sul contesto o sulla filiera finora implementati; c) alcune possibili soluzioni a livello politico, finanziario e aziendale in grado di superare gli ostacoli ad una completa transizione sostenibile.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Residual zonal flows in tokamaks and stellarators at arbitrary wavelengths
Creators: name: Monreal, P.
name: Calvo, I.
name: Sánchez, E.
name: Parra, F. I.
name: Bustos, A.
name: Könies, A.
name: Kleiber, R.
name: Görler, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In the linear collisionless limit, a zonal potential perturbation in a toroidal plasma relaxes, in general, to a non-zero residual value. Expressions for the residual value in tokamak and stellarator geometries, and for arbitrary wavelengths, are derived. These expressions involve averages over the lowest order particle trajectories, that typically cannot be evaluated analytically. In this work, an efficient numerical method for the evaluation of such expressions is reported. It is shown that this method is faster than direct gyrokinetic simulations performed with the GENE and EUTERPE codes. Calculations of the residual value in stellarators are provided for much shorter wavelengths than previously available in the literature. Electrons must be treated kinetically in stellarators because, unlike in tokamaks, kinetic electrons modify the residual value even at long wavelengths. This effect, that had already been predicted theoretically, is confirmed by gyrokinetic simulations.
description: 31 pages, 15 figures
Correlations between CT measures acquired using different ROIs from Are global and specific interindividual differences in cortical thickness associated with facets of cognitive abilities, including face cognition?.
Creators: name: Meyer, Kristina
name: Garzón, Benjamín
name: Lövdén, Martin
name: Hildebrandt, Andrea
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: Plot depicting manifest correlations between the CT values acquired using 5 mm, 10 mm or across-subject ROIs, respectively
Factor loadings of accuracy models from Are global and specific interindividual differences in cortical thickness associated with facets of cognitive abilities, including face cognition?.
Creators: name: Meyer, Kristina
name: Garzón, Benjamín
name: Lövdén, Martin
name: Hildebrandt, Andrea
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: Standardized estimates of factor loadings with standard errors for general and nested factors of accuracy - preregistered and post-hoc modified models
(1051) Richard Ansdell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Explaining excesses in four-leptons at the LHC with a double peak from a CP violating Two Higgs Doublet Model
Creators: name: Antusch, Stefan
name: Fischer, Oliver
name: Hammad, A.
name: Scherb, Christiane
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Extended scalar sectors with additional degrees of freedom appear in many scenarios beyond the Standard Model. Heavy scalar resonances that interact with the neutral current could be discovered via broad resonances in the tails of the four-lepton invariant mass spectrum, where the Standard Model background is small and well understood. In this article we consider a recent ATLAS measurement of four-lepton final states, where the data is in excess over the background for invariant masses above 500 GeV. We discuss the possibility that this excess could be interpreted as a "double peak" from the two extra heavy neutral scalars of a CP violating Two Higgs Doublet Model, both coupling to the $Z$ boson. We apply an iterative fitting procedure to find viable model parameters that can match the excess, resulting in a benchmark point where the observed four-lepton invariant mass spectrum can be explained by two scalar particles $H_2$ and $H_3$, with masses of 540 GeV and 631 GeV, respectively, being admixtures of the CP eigenstates. Our explanation predicts additional production processes for $t\bar t$, $W^+W^-$, $4b$ and $γγ$, some of which have cross sections close to the current experimental limits. Our results further imply that the electric dipole moment of the electron should be close to the present bounds.
description: 9 pages, 2 figures
Ohne die innere Uhr keine Blüte
Creators: name: Begger, Jan-Hendrik
name: Steffen, Alexander
name: Nolding, Jana
name: Staiger, Dorothee
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2020

description: Der Beitrag führt in das Thema „Die circadianen Rhythmen der Pflanzenwelt“ ein und fokussiert auf die Blühinduktion bei Arabidopsis thaliana. Die Unterrichtseinheit ist für Ökologie-, Genetik- oder Projektkurse der Sek. II konzipiert.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Vol 3 No 2 (2020): Bienen, Blüten, bilingual
Exploring fundamental laws of classical mechanics via predicting the orbits of planets based on neural networks
Creators: name: Zhang, Jian
name: Liu, Yiming
name: Tu, Z. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Neural networks have provided powerful approaches to solve various scientific problems. Many of them are even difficult for human experts who are good at accessing the physical laws from experimental data. We investigate whether neural networks can assist us in exploring the fundamental laws of classical mechanics from data of planetary motion. Firstly, we predict the orbits of planets in the geocentric system using the gate recurrent unit, one of the common neural networks. We find that the precision of the prediction is obviously improved when the information of the Sun is included in the training set. This result implies that the Sun is particularly important in the geocentric system without any prior knowledge, which inspires us to gain Copernicus' heliocentric theory. Secondly, we turn to the heliocentric system and make successfully mutual predictions between the position and velocity of planets. We hold that the successful prediction is due to the existence of enough conserved quantities (such as conservations of mechanical energy and angular momentum) in the system. Our research provides a new way to explore the existence of conserved quantities in mechanics system based on neural networks.
Enzymes in everyday life
Creators: name: Ohlberger, Stephanie
name: Wegner, Claas
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2020

description: In Zeiten, in denen bilingualer Unterricht immer mehr an Bedeutung gewinnt und aus der heutigen Schullandschaft kaum noch weg zu denken ist, ist es dennoch nicht für jede Schule möglich, ein institutionalisiertes bilinguales Lehrangebot zu schaffen. Aus diesem Grund sind bilinguale Module auf dem Vormarsch, was bedeutet, dass vereinzelt ganze Unterrichtseinheiten in einer Fremdsprache unterrichtet werden, sofern der Lehrer sich dazu in der Lage sieht. Um diesen Prozess zu unterstützen, wird im vorliegenden Beitrag ein Vorhaben zur Enzymatik vorgestellt – geeignet für Schüler*innen der EF, die bereits gute Sprachfähigkeiten aufweisen und dadurch eine Auflockerung ihres Unterrichtsalltags erleben.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Vol 3 No 2 (2020): Bienen, Blüten, bilingual
Two-loop anomalous dimension for the resummation of non-global observables
Creators: name: Becher, Thomas
name: Rauh, Thomas
name: Xu, Xiaofeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The soft radiation emitted in jet cross sections can resolve the directions and colors of individual hard partons, leading to a complicated pattern of logarithmically enhanced terms in the perturbative series. Starting from a factorization theorem and solving the renormalization group equations for its ingredients, these large logarithms can be resummed. In this paper, we extract the two-loop anomalous dimension governing the resummation of subleading logarithms in jet cross sections and other non-global observables. This anomalous dimension can be obtained by considering soft limits of hard amplitudes, but the presence of collinear singularities in intermediate expressions makes its extraction delicate. As a consistency check, we use our results to predict the known subleading non-global logarithms in the two-jet cross section.
description: 53 pages, 3 figures, v2: journal version
Atlante del Cibo di Matera. Verso una governance agro-urbana
Creators: name: Mininni, Mariavaleria
name: Romano, Miriam
Publisher: name: Re|Cibo
Year: 2023

description: L’articolo descrive il caso dell’Atlante del Cibo Matera, un percorso di ricerche indirizzate a costruire un processo di conoscenze a supporto della decisione in grado di attivare una governance delle politiche del cibo in chiave agrourbana e farsi dispositivo per la transizione ecologica. L’Atlante del Cibo Matera vuole sperimentare le sue potenzialità operando in una realtà meridionale con una grande tradizione agricola e agroindustriale ma con deficit infrastrutturali, scarsa disposizione alla cooperazione di filiera, alla territorializzazione e alla valorizzazione dei processi produttivi. L’articolo offre elementi di discussione in merito al rapporto tra strumenti, processi, e azioni mostrando le potenzialità della piattaforma dell’Atlante dentro una visione di City-Region Food Governance.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Sprachsensibler Biologieunterricht mit neuzugewanderten Schüler*innen
Creators: name: Schmiedebach, Mario
name: Baumgarth, Julia
name: Wegner, Claas
Publisher: name: BU praktisch - Das Online-Journal für den Biologieunterricht
Year: 2020

description: Die Beschulung neuzugewanderter Schüler*innen hat in den letzten Jahren aufgrund steigender Zuwanderungszahlen an Bedeutung für das deutsche Schulsystem gewonnen. Oftmals werden diese Kinder und Jugendliche in eigens für sie eingerichtete Klassen, so genannten „internationalen Klassen“ (IK), Willkommensklassen, Sprachfördergruppen, etc., unterrichtet. Der vorliegende Artikel zeigt, wie in einer solchen Lerngruppe Biologieunterricht trotz geringer Sprachkenntnisse erfolgen kann und ist im Rahmen des Projekts „Biology for Everyone“ entstanden. Zudem lässt er sich auch im Regelunterricht als sprachsensibler Fachunterricht umsetzen.
description: BU praktisch - Das Online-Journal für den Biologieunterricht, Vol 3 No 2 (2020): Bienen, Blüten, bilingual
Generalized Likelihood Ratio Test for Adversarially Robust Hypothesis Testing
Creators: name: Puranik, Bhagyashree
name: Madhow, Upamanyu
name: Pedarsani, Ramtin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Machine learning models are known to be susceptible to adversarial attacks which can cause misclassification by introducing small but well designed perturbations. In this paper, we consider a classical hypothesis testing problem in order to develop fundamental insight into defending against such adversarial perturbations. We interpret an adversarial perturbation as a nuisance parameter, and propose a defense based on applying the generalized likelihood ratio test (GLRT) to the resulting composite hypothesis testing problem, jointly estimating the class of interest and the adversarial perturbation. While the GLRT approach is applicable to general multi-class hypothesis testing, we first evaluate it for binary hypothesis testing in white Gaussian noise under $\ell_{\infty}$ norm-bounded adversarial perturbations, for which a known minimax defense optimizing for the worst-case attack provides a benchmark. We derive the worst-case attack for the GLRT defense, and show that its asymptotic performance (as the dimension of the data increases) approaches that of the minimax defense. For non-asymptotic regimes, we show via simulations that the GLRT defense is competitive with the minimax approach under the worst-case attack, while yielding a better robustness-accuracy tradeoff under weaker attacks. We also illustrate the GLRT approach for a multi-class hypothesis testing problem, for which a minimax strategy is not known, evaluating its performance under both noise-agnostic and noise-aware adversarial settings, by providing a method to find optimal noise-aware attacks, and heuristics to find noise-agnostic attacks that are close to optimal in the high SNR regime.
description: Submitted to the IEEE Transactions on Signal Processing