cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conditions of naturalness and fine-tunings for type-I seesaw mechanism with four-zero texture
Creators: name: Yang, Masaki J. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we search for conditions that the mass matrix of light neutrinos $m_ν$ is not a result of large cancellations for the type-I seesaw mechanism with four-zero texture. For the Yukawa matrix of neutrinos $Y_ν$ and heavy Majorana mass matrix $M_{R}$, these conditions are written as $(Y_ν)_{i2} \propto (m_ν)_{i2} \, \Rightarrow \, (Y_ν)_{i2} \propto (M_{R})_{i2}$. We call them {\it alignment} conditions because they align the certain rows or columns of the three neutrino mass matrices. If these conditions do not hold, the large mixing in $m_ν$ is a result of fine-tuning due to the cancellation of several terms. Then they are required from a viewpoint of naturalness. They give an explanation of the seesaw-invariance of four-zero texture, and place rough restrictions on flavor structures of neutrinos. Under these conditions, $Y_ν$ must have a cascade hierarchy. For $M_{R}$, the 12 submatrix has a similar hierarchy as $Y_ν$ and $m_ν$. However, the 23 submatrix has a waterfall hierarchy without some fine-tuning. Therefore, it is likely that $Y_ν$ and $M_{R}$ have qualitatively different flavor structures. Furthermore, since the conditions restrict CP phases of the matrix elements, they imply existence of a universal generalized CP symmetry in the neutrino sector.
description: 16 pages, will be published in PTEP
Pheroliodes roblensis Covarrubias 1968
Creators: name: Revelo-Tobar, Harol
name: Ojeda, Margarita
name: García-Ayala, Leonardo J.
name: Palacios-Vargas, José G.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Pheroliodidae
Pheroliodes
Pheroliodes roblensis

description: Pheroliodes roblensis Covarrubias, 1968
 Distribution: Neotropical.
 Records in Mexico: Quintana Roo.
 Biogeographic province: Yucatan Peninsula.
 Habitat: Leaf litter and soil of medium sub evergreen forest, lowland forest, mangrove and halophyte vegetation.
 References: Vázquez et al. (2016): 147–162.
description: Published as part of Revelo-Tobar, Harol, Ojeda, Margarita, García-Ayala, Leonardo J. & Palacios-Vargas, José G., 2024, Checklist Of Oribatid Mites (Acari: Oribatida) From Mexico, pp. 1-178 in Zootaxa 5465 (1) on page 65, DOI: 10.11646/zootaxa.5465.1.1, http://zenodo.org/record/11613709
Algorithmic Amplification of Politics on Twitter
Creators: name: Huszár, Ferenc
name: Ktena, Sofia Ira
name: O'Brien, Conor
name: Belli, Luca
name: Schlaikjer, Andrew
name: Hardt, Moritz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Content on Twitter's home timeline is selected and ordered by personalization algorithms. By consistently ranking certain content higher, these algorithms may amplify some messages while reducing the visibility of others. There's been intense public and scholarly debate about the possibility that some political groups benefit more from algorithmic amplification than others. We provide quantitative evidence from a long-running, massive-scale randomized experiment on the Twitter platform that committed a randomized control group including nearly 2M daily active accounts to a reverse-chronological content feed free of algorithmic personalization. We present two sets of findings. First, we studied Tweets by elected legislators from major political parties in 7 countries. Our results reveal a remarkably consistent trend: In 6 out of 7 countries studied, the mainstream political right enjoys higher algorithmic amplification than the mainstream political left. Consistent with this overall trend, our second set of findings studying the U.S. media landscape revealed that algorithmic amplification favours right-leaning news sources. We further looked at whether algorithms amplify far-left and far-right political groups more than moderate ones: contrary to prevailing public belief, we did not find evidence to support this hypothesis. We hope our findings will contribute to an evidence-based debate on the role personalization algorithms play in shaping political content consumption.
Defining "Giant" Electrostriction
Creators: name: Yu, Jiacheng
name: Janolin, Pierre-Eymeric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The recent discovery of giant electrostrictors has re-ignited the interest in electrostriction, an electromechanical coupling existing in all dielectrics but overshadowed by its linear counterpart: piezoelectricity. In this review, after a reminder of classical electrostriction, we propose a definition of giant electrostriction based on two empirical relations (Newnam relation and one we propose). From this definition, we review previous reports on giant electrostrictors, to assess their nature. Focusing on the ones satisfying our definition, we compare their performances and characteristics. We also identify some of the hurdles to their adoption in the wide range of electromechanical applications, despite their fundamental and applicative interests.
An Exceptional Dimming Event for a Massive, Cool Supergiant in M51
Creators: name: Jencson, Jacob E.
name: Sand, David J.
name: Andrews, Jennifer E.
name: Smith, Nathan
name: Pearson, Jeniveve
name: Strader, Jay
name: Valenti, Stefano
name: Beasor, Emma R.
name: Rothberg, Barry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the discovery of an exceptional dimming event in a cool supergiant star in the Local Volume spiral M51. The star, dubbed M51-DS1, was found as part of a Hubble Space Telescope (HST) search for failed supernovae (SNe). The supergiant, which is plausibly associated with a very young ($\lesssim6$ Myr) stellar population, showed clear variability (amplitude $ΔF814W\approx0.7$ mag) in numerous HST images obtained between 1995 and 2016, before suddenly dimming by $>$2 mag in $F814W$ sometime between late 2017 and mid-2019. In follow-up data from 2021, the star rebrightened, ruling out a failed supernova. Prior to its near-disappearance, the star was luminous and red ($M_{F814W}\lesssim-7.6$ mag, $F606W-F814W=1.9$ - $2.2$ mag). Modeling of the pre-dimming spectral energy distribution of the star favors a highly reddened, very luminous ($\log[L/L_{\odot}] = 5.4$ - $5.7$) star with $T_{\mathrm{eff}}\approx3700$ - $4700$ K, indicative of a cool yellow or post-red supergiant (RSG) with an initial mass of $\approx26$ - $40$ $M_{\odot}$. However, the local interstellar extinction and circumstellar extinction are uncertain, and could be lower: the near-IR colors are consistent with an RSG, which would be cooler ($T_{\mathrm{eff}}\lesssim3700$ K) and slightly less luminous ($\log[L/L_{\odot}] = 5.2$ - $5.3$), giving an inferred initial mass of $\approx19$ - $22$ $M_{\odot}$. In either case, the dimming may be explained by a rare episode of enhanced mass loss that temporarily obscures the star, potentially a more extreme counterpart to the 2019 - 2020 "Great Dimming" of Betelgeuse. Given the emerging evidence that massive evolved stars commonly exhibit variability that can mimic a disappearing star, our work highlights a substantial challenge in identifying true failed SNe.
description: 21 pages, 6 figures, accepted in ApJ
Ledelse, tid og evalueringsanvendelse
Creators: name: Bjørnholt, Bente
Publisher: name: CEPRA-striben
Year: 2016

description: I folkeskolen får lederne stadig flere kompetencer, og ledelse tillægges større betydning. I artiklen undersøges det, hvorvidt ledelse og tid har betydning for brugen af evaluering. Mere konkret rejses spørgsmålene, hvorvidt henholdsvis professionelt- og managementorienterede skoleledere bruger evalueringer forskelligt, og hvorvidt deres evalueringsbrug ændres over tid. Dette undersøges via to identiske spørgeskemaundersøgelser udsendt til alle skoleledere i henholdsvis 2008 og 2012. Resultaterne herfra peger på, at skoleledere, der er managementorienterede, i højere grad bruger evalueringer instrumentelt og er mindre bekymrede for konstitutive konsekvenser end skoledere, der er mere professionelt orienterede. Dertil kommer, at der over tid blandt skoleledere generelt er sket en bevægelse mod mere instrumentel brug af evalueringer og mindre bekymring for konstitutive virkninger.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
Icon: A diagrammatic theorem prover for ontologies
Creators: name: Shams, Z
name: Jamnik, M
name: Stapleton, G
name: Sato, Y
Publisher: name: AAAI Press
Year: 2018

description: Concept diagrams form a visual language that is aimed at non-experts for the specification of ontologies and reason- ing about them. Empirical evidence suggests that they are more accessible to ontology users than symbolic notations typically used for ontologies (e.g., DL, OWL). Here, we re- port on iCon, a theorem prover for concept diagrams that al- lows reasoning about ontologies diagrammatically. The input to iCon is a theorem that needs proving to establish how an entailment, in an ontology that needs debugging, is caused by a minimal set of axioms. Such a minimal set of axioms is called an entailment justification. Carrying out inference in iCon provides a diagrammatic proof (i.e., explanation) that shows how the axioms in an entailment justification give rise to the entailment under investigation. iCon proofs are for- mally verified and guaranteed to be correct.
Portfolioen i slipstrømmen af et nyt evalueringsparadigme
Creators: name: Qvortrup, Ane
Publisher: name: CEPRA-striben
Year: 2016

description: Gennem de seneste to årtier har uddannelsessystemet
været vidne til et øget fokus på og nye krav
knyttet til et skifte fra summativ, produktorienteret
evaluering til formativ, procesorienteret evaluering.
Skiftet er blevet beskrevet som uddannelsessystemets
løsning på et misforhold mellem eksisterende
evalueringspraksisser og forventninger til
samfundsmæssige behov.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
title: L'éco-anxiété chez les adolescent·e·s du cycle 3 : exposition au sujet, facteurs socio-démographique et compétences émotionnelles
title: L'éco-anxiété chez les adolescent·e·s du cycle 3 : exposition au sujet, facteurs socio-démographique et compétences émotionnelles
titleType: AlternativeTitle
Creators: name: Egger, David
name: Mandanis, Zoé
Publisher: name: Unknown
Year: 0
Subjects: subject: émotion
subject: éco-anxiété
subject: adolescence
subject: crise climatique
subject: école secondaire

description: L’éco-anxiété est une émotion apparue que très récemment dans la littérature scientifique. Elle se caractérise par un état psychologique de mal-être généralisé provoqué par l’appréhension d’une menace future associée à l'effondrement environnemental. Cette menace se définit par une dimension incertaine et sur laquelle il semble y avoir peu de contrôle (Barnett et Anand, 2021 ; Gousse-Lessard, et Lebrun-Paré, 2022 ; Panu, 2020). L’adolescence est une période d’instabilité émotionnelle (Ahmed et al. 2015). Par conséquent, nous avons cherché à voir dans quelle mesure les adolescent·e·s du secondaire 1 ressentent de l’éco-anxiété. Nous avons vérifié différents facteurs pouvant l’influencer (âge, filière, degré, influence du cours de géographie, compétences émotionnelles, confiance en l’avenir). Nos résultats montrent qu’environ 5% des élèves du secondaire 1 ressentent une inquiétude importante liée à la crise climatique. Nous ne pouvons pas affirmer que les adolescent·e·s éprouvent de l’éco-anxiété. Néanmoins, nous avons observé une évolution du niveau de stress entre la 9H et la 11H. Ainsi, les autres facteurs ne semblent pas jouer un rôle déterminant chez les élèves du secondaire 1.
Cooperative learning og evaluering af elevers læring
Creators: name: Strange, Mette
Publisher: name: CEPRA-striben
Year: 2016

description: Cooperative Learning kan være med til at skabe mere aktivitet i undervisningen, og det kan være med til at skabe tid og rum for den vigtige evaluering af elevernes læring, fordi læreren ikke, som i en traditionel undervisning,
er på hele tiden. Eleverne bliver bevidste om egne styrker og deres eget bidrag til gruppens arbejde, og de kan på den måde øge deres læringsudbytte.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
Feedback - en metode til kompetenceudviklng hos børn og unge i den pædagogiske praksis
Creators: name: Pedersen, Kirsten Hyldahl
Publisher: name: CEPRA-striben
Year: 2016

description: Feedback er et centralt fokusområde inden for
uddannelsesforskningen i store dele af verden.
Det skyldes ikke mindst den newzealandske professor
John A. C. Hattie, der på baggrund af sin
omfattende forskning har udviklet en feedbackmodel,
som definerer rammerne for, hvornår
feedback har størst effekt på læring (Hattie 2009).
Artiklen belyser med udgangspunkt i feedbackmodellen,
hvordan denne kan anvendes som metode
til systematisk udvikling af faglige kompetencer
hos børn og unge i skolen. Herefter relateres
modellen kort til social kompetenceudvikling i
den pædagogiske praksis.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
FIESTA5: numerical high-performance Feynman integral evaluation
Creators: name: Smirnov, A. V.
name: Shapurov, N. D.
name: Vysotsky, L. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we present a new release of the FIESTA program (Feynman Integral Evaluation by a Sector decomposiTion Approach). FIESTA5 is performance-oriented - we implemented improvements of various kinds in order to make Feynman integral evaluation faster. We plugged in two new integrators, the Quasi Monte Carlo and Tensor Train. At the same time the old code of FIESTA4 was upgraded to the C++17 standard and mostly rewritten without self-made structures such as hash tables. There are also several essential improvements which are most relevant for complex integrations - the new release is capable of producing results where previously impossible.
Brug af forskningsbaseret viden - til kvalitetsudvikling i dagtilbud
Creators: name: Næsby, Torben
Publisher: name: CEPRA-striben
Year: 2016

description: Med LP-modellen som eksempel vises, hvordan
forskningsbaseret viden kan anvendes til kvalitetsudvikling.
Ikke organiseret som top-styrede
projekter, heller ikke som ”Bottom-up”- styrede,
men som kombination af disse. Med eksempler fra
den forskningsbaserede viden fra empirien, der er
indsamlet i LP-modellen (LP-data) sammenlignes
med forskning om pædagogisk kvalitet for dermed
at vise, om og i givet fald hvordan denne organisering
kan føre til udvikling af kvalitet i dagtilbud.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
Exact solution for a traversable wormhole in a curvature-coupled antisymmetric background field
Creators: name: Maluf, R. V.
name: Muniz, C. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we study a traversable wormhole sourced by an ideal matter fluid with an antisymmetric 2-tensor background field coupled to gravity in a scenario of spontaneously broken Lorentz symmetry. Contrary to employed in the literature, we use a nonminimal curvature-coupling term $B^{μν}B^{κλ}R_{μνκλ}$ which incorporates all three kinds of Lorentz-violating coefficient for the pure-gravity sector of the minimal standard-model extension. We find that the wormhole is non-asymptotically globally flat and determine the allowed parameters of the theory, showing that the matter fluid must be necessarily anisotropic. We also analyze the energy conditions, checking their validity range and comparing them with those predicted by general relativity.
description: 13 pages, 2 figures; minor changes; now matches the published version
Transferevaluering af pædagogisk efteruddannelse
Creators: name: Andresen, Bent B.
Publisher: name: CEPRA-striben
Year: 2016

description: Efteruddannelsesforløb bliver
ofte evalueret uden hensyntagen
til deres transferværdi.
Transfer betegner i denne
sammenhæng det forhold, at
deltagerne bruger det lærte
efter forløbet. Forskning tyder
på, at det lærte ofte bliver
brugt relativt lidt bagefter. Det
rejser spørgsmålet om, hvordan
man kan evaluere transfer
og opnå en høj værdi heraf.
I artiklen behandles dette
spørgsmål med udgangspunkt
i et casestudie vedrørende
Danmarks største skoleudviklingsprojekt,
som omfatter
alle pædagogiske medarbejdere
på over 500 folkeskoler.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
A global view of shocked plasma in the supernova remnant Puppis A provided by SRG/eROSITA
Creators: name: Mayer, Martin G. F.
name: Becker, Werner
name: Predehl, Peter
name: Sasaki, Manami
name: Freyberg, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context. Puppis A is a medium-age supernova remnant (SNR), which is visible as a very bright extended X-ray source. While numerous studies have investigated individual features of the SNR, at this time, no comprehensive study of the entirety of its X-ray emission exists. Aims. Using field-scan data acquired by the SRG/eROSITA telescope during its calibration and performance verification phase, we aim to investigate the physical conditions of shocked plasma and the distribution of elements throughout Puppis A. Methods. Using broad- and narrow-band imaging, we investigate the large-scale distribution of absorption and plasma temperature as well as typical emission lines. This approach is complemented by spatially resolved spectral analysis of the shocked plasma in Puppis A, for which we divide the SNR into around 700 distinct regions, resulting in maps of key physical quantities over its extent. Results. We find a strong peak of foreground absorption in the southwest quadrant, which in conjunction with high temperatures at the northeast rim creates the well-known strip of hard emission crossing Puppis A. Furthermore, using the observed distribution of ionization ages, we attempt to reconstruct the age of the shock in the individual regions. We find a quite recent shock interaction for the prominent northeast filament and ejecta knot, as well as for the outer edge of the bright eastern knot. Finally, elemental abundance maps reveal only a single clear enhancement of the plasma with ejecta material, consistent with a previously identified region, and no obvious ejecta enrichment in the remainder of the SNR. Within this region, we confirm the spatial separation of silicon-rich ejecta from those dominated by lighter elements.
description: 20+5 pages, 10+5 figures; Accepted by A&A for the Special Issue: The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG Mission; Abstract abridged
Random matrix theory for quantum and classical metastability in local Liouvillians
Creators: name: Li, Jimin L.
name: Rose, Dominic C.
name: Garrahan, Juan P.
name: Luitz, David J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the effects of strong dissipation in quantum systems with a notion of locality, which induces a hierarchy of many-body relaxation timescales as shown in [Phys. Rev. Lett. 124, 100604 (2020)]. If the strength of the dissipation varies strongly in the system, additional separations of timescales can emerge, inducing a manifold of metastable states, to which observables relax first, before relaxing to the steady state. Our simple model, involving one or two "good" qubits with dissipation reduced by a factor $α<1$ compared to the other "bad" qubits, confirms this picture and admits a perturbative treatment.
description: 5 pages, 3 figures plus supplementary material
Sosial, faglig og opplevd inklusjon for ulike elevgrupper i skolen
Creators: name: Nordahl, Thomas
name: Sunnevåg, Anne-Karin
Publisher: name: CEPRA-striben
Year: 2016

description: For elevene i skolen er ikke inklusjon i eller eksklusjon fra et fellesskap et spørsmål som kan besvares med et enkelt ja eller nei. Det er behov for en rekke ulike tilnærminger og nyanser for å kunne analysere og forstå inklusjon for elevene. Denne artikkelen har til hensikt å sette fokus på inklusjon i skolen med utgangspunkt i resultater fra en kvantitativ spørreundersøkelse gjennomført høsten 2012 ved 53 skoler som arbeider med LP-modellen(Læringsmiljø og pedagogisk analyse). Artikkelen tar utgangspunkt i resultater fra spørreundersøkelser
ut fra både et elev- og et lærerperspektiv, og det analyseres i hvilken grad ulike grupper av elever er i inkludert i ulike fellesskaper i skolen.
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
Dagtilbud med høy, god og lav kvalitet
Creators: name: Sunnevåg, Anne-Karin
Publisher: name: CEPRA-striben
Year: 2016

description: Denne artikkelen har til hensikt å sette fokus på
kvalitet i dagtilbudet med utgangspunkt i resultater
fra en kvantitativ spørreundersøkelse gjennomført
høsten 2012 av Senter for praksisrettet utdanningsforskning
(SePU) ved Høgskolen i Hedmark,
ved 44 danske dagtilbud som har arbeidet med
LP-modellen (Læringsmiljø og pedagogisk analyse)
i perioden 2010-2012. Hovedformålet i arbeidet med
LP-modellen er å utvikle gode lærings og utviklingsmiljøer
med hensiktsmessige betingelser for
barns trivsel, deres personlige, sosiale, språklige
og motoriske læring og utvikling. Artikkelen tar
utgangspunkt i resultater både i et voksenperspektiv
og barneperspektiv, og ser resultatene i lys av
begrepet om dagtilbud med høy, god og lav kvalitet
(Sheridan 2001). Artikkelens problemstilling er;
«hva kjennetegner læringsmiljøet i dagtilbud som
arbeider med LP-modellen?»
description: CEPRA-striben, Nr. 15 (2013): Inklusion og evaluering
Evolving Heterotic Gauge Backgrounds: Genetic Algorithms versus Reinforcement Learning
Creators: name: Abel, Steven
name: Constantin, Andrei
name: Harvey, Thomas R.
name: Lukas, Andre
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The immensity of the string landscape and the difficulty of identifying solutions that match the observed features of particle physics have raised serious questions about the predictive power of string theory. Modern methods of optimisation and search can, however, significantly improve the prospects of constructing the standard model in string theory. In this paper we scrutinise a corner of the heterotic string landscape consisting of compactifications on Calabi-Yau three-folds with monad bundles and show that genetic algorithms can be successfully used to generate anomaly-free supersymmetric SO(10) GUTs with three families of fermions that have the right ingredients to accommodate the standard model. We compare this method with reinforcement learning and find that the two methods have similar efficacy but somewhat complementary characteristics.
description: 29 pages, 12 figures
A novel event generator for the automated simulation of neutrino scattering
Creators: name: Isaacson, Joshua
name: Höche, Stefan
name: Gutierrez, Diego Lopez
name: Rocco, Noemi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An event generation framework is presented that enables the automatic simulation of events for next-generation neutrino experiments in the Standard Model or extensions thereof. The new generator combines the calculation of the leptonic current based on an automated matrix element generator, and the computation of the hadronic current based on a state-of-the-art nuclear physics model. The approach is validated in Standard-Model simulations for electron scattering and neutrino scattering. Furthermore, the first fully-differential neutrino trident production results are shown in the quasielastic region.
description: 13 pages, 8 figures
Cosmic-Ray-Related Signals from Detectors in Space: the Spitzer/IRAC Si:As IBC Devices
Creators: name: Hagan, Brendan
name: Rieke, George
name: Fox, Ori D.
name: Noriega-Crespo, Alberto
name: Hines, Dean C.
name: Cracraft, Misty
name: Marin, Macarena Garcia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the hit rate of cosmic rays and their daughter particles on the Si:As IBC detectors in the IRAC instrument on the Spitzer Space Telescope. The hit rate follows the ambient proton flux closely, but the hits occur at more than twice the rate expected just from this flux. Toward large amplitudes, the size distribution of hits by single-charge particles (muons) follows the Landau Distribution. The amplitudes of the hits are distributed to well below the energy loss of a traditional ``average minimum-ionizing proton'' as a result of statistical fluctuations in the ionization loss within the detectors. Nonetheless, hits with amplitudes less than a few hundred electrons are rare; this places nearly all hits in an amplitude range that is readily identified given the read noises of modern solid-state detectors. The spread of individual hits over multiple pixels is dominated by geometric effects, i.e., the range of incident angles, but shows a modest excess probably due to: (1) showering and scattering of particles; (2) the energy imparted on the ionization products by the energetic protons; and (3) interpixel capacitance. Although this study is focused on a specific detector type, it should have general application to operation of modern solid-state detectors in space.
description: PASP,in press
МЕТОДИКА ОРГАНИЗАЦИИ ПОВТОРЕНИЯ НА УРОКАХ ЛИТЕРАТУРЫ
Creators: name: Турдимуродова, Сарвиноз
name: Мавлянова, Тамилла
Publisher: name: Zenodo
Year: 2025

description: В представленной работе рассматриваются традиционные и инновационные методики организации повторения на уроках литературы. Подчеркиваются как преимущества классических подходов (лекции, пересказ, анализ по плану), способствующих систематизации знаний и развитию памяти учащихся, так и их недостатки, такие как пассивность и ограниченность глубинного анализа. Особое внимание уделяется современным образовательным технологиям, включая проектную деятельность, использование мультимедийных средств, интерактивных платформ и дискуссионных форматов. Рассматриваются примеры успешных проектов, направленных на развитие критического мышления, творческого подхода и междисциплинарных связей. Работа акцентирует важность осмысленного и активного повторения как ключевого этапа формирования у учащихся глубокого понимания литературных произведений и устойчивого интереса к предмету.
Boerhaave syndrome â spontaneous esophageal perforation
Creators: name: Buntzen, Annalea
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Mediastinum
subject: CT
subject: Diagnostic procedure
subject: Abscess

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 70 years
description: Clinical History: Sudden clinical deterioration in intensive care unit patient with longstanding pneumonia. The patient had severe chest pain. Lab tests showed signs of infection. Normal ECG. No abdominal pain or vomiting. Final Diagnosis: Spontaneous esophageal rupture
Partial Hadamard Encoded Synthetic Transmit Aperture for High Frame Rate Imaging with Minimal l2-Norm Least Square Method
Creators: name: Zhang, Jingke
name: Liu, Jing
name: Fan, Wei
name: Qiu, Weibao
name: Luo, Jianwen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Synthetic transmit aperture (STA) ultrasound imaging is well known for ideal focusing in the full field of view. However, it suffers from low signal-to-noise ratio (SNR) and low frame rate, because each array element must be activated individually. In our previous study, we encoded all the array elements with partial Hadamard matrix and reconstructed the complete STA dataset with compressed sensing (CS) algorithm (CS-STA). As all the elements are activated in each transmission and the number of transmissions is smaller than that of STA, this method can achieve higher SNR and higher frame rate. Its main drawback is the time-consuming CS reconstruction. In this study, we accelerate the complete STA dataset reconstruction with minimal l2-norm least square method. Thanks of the orthogonality of partial Hadamard matrix, the minimal l2-norm least square solution can be easily calculated. The proposed method is tested with simulation data and experimental phantom and in-vivo data. The results demonstrate that the proposed method achieves ~5*10^3 times faster reconstruction speed than CS algorithm. The simulation results demonstrate that the proposed method is capable of achieving the same accuracy for STA dataset reconstruction as conventional CS-STA method. The simulations, phantom and in-vivo experiments show that the proposed method is capable of improving the generalized contrast-to-noise ratio (gCNR) and SNR with maintained spatial resolution and fewer transmissions, compared with STA. In conclusion, the improved image quality and reduced computational time of LS-STA pave the way for its real-time applications in the clinics.
Forord
Creators: name: Miller, Tanja
Publisher: name: CEPRA-striben
Year: 2016

description: Dette temanummer tager fat på evaluering
med et særligt fokus på kontekstens
betydning for evalueringsdesign,
evalueringsspørgsmål og anvendelse i
konteksten. Evalueringsresultater er altid
kontekstafhængige, men nogle design og
processer er mere egnede til at producere
viden, der kan ”flyttes” mellem kontekster.
Og nogle metoder – f.eks. feedback – kan
slet ikke flyttes, men fungerer kun i
konkrete kontekster og situationer.
description: CEPRA-striben, Nr. 13 (2012): Evaluering i konteksten
Pheroliodes wehnckei Willmann 1930
Creators: name: Revelo-Tobar, Harol
name: Ojeda, Margarita
name: García-Ayala, Leonardo J.
name: Palacios-Vargas, José G.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Pheroliodidae
Pheroliodes
Pheroliodes wehnckei

description: Pheroliodes wehnckei Willmann, 1930
 Distribution: Neotropical.
 Records in Mexico: Quintana Roo.
 Biogeographic province: Yucatan Peninsula.
 Habitat: Mangrove litter.
 References: Vázquez (2008): 12.
description: Published as part of Revelo-Tobar, Harol, Ojeda, Margarita, García-Ayala, Leonardo J. & Palacios-Vargas, José G., 2024, Checklist Of Oribatid Mites (Acari: Oribatida) From Mexico, pp. 1-178 in Zootaxa 5465 (1) on page 65, DOI: 10.11646/zootaxa.5465.1.1, http://zenodo.org/record/11613709
Forord
Creators: name: Miller, Tanja
Publisher: name: CEPRA-striben
Year: 2016

description: En væsentlig del af udviklings-, undervisnings-
og læreprocesser er den feedback
deltagerne modtager fra omgivelserne på
forskellige måder. Artiklen ”The power of
feedback” (2007) af Hattie og Timperley
blev startskuddet til yderligere forskning
i feedbacks betydning, for både dem der
modtager og dem der giver det. Andre har
lavet udviklingsprojekter, hvor de generelle
fund fra artiklen er implementeret og
udviklet i forskellige kontekster og dermed
blevet mere egnede, som en del af en
evalueringskultur i en inklusionspraksis.
Dette temanummer beskæftiger sig med
feedback processer i forskellige kontekster.
description: CEPRA-striben, Nr. 14 (2013): Feedback
The fate of pairing and spin-charge separation in the presence of long-range antiferromagnetism
Creators: name: Yang, Luhang
name: Hamad, Ignacio
name: Manuel, Luis O.
name: Feiguin, Adrian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a numerical study of competing orders in the 1D $t$-$J$ model with long-range RKKY-like staggered spin interactions. By circumventing the constraints imposed by Mermin-Wagner's theorem, this Hamiltonian can realize long-range Néel order at half-filling. We determine the full phase diagram as a function of the exchange and particle density using the density matrix renormalization group (DMRG) method. We show that pairing is disfavored and the AFM insulator and metallic phases are separated by a broad regime with phase segregation, before spin-charge separation re-emerges at low densities. Upon doping, interactions induce a confining potential that binds holons and spinons into full fledged fermionic quasi-particles in a range of parameters and densities. We numerically calculate the photoemission spectrum of the model, showing the appearance of a coherent quasi-particle band splitting away from the holon-spinon continuum with a width determined by $J$ that survives at finite doping. Comparison with analytical results using the self-consistent Born approximation (SCBA) and by solving the spinon-holon problem offer insight into the internal structure of the quasi-particles and help us explain the different features in the spectrum. We discuss how this simple toy-model can teach us about the phenomenology of its higher dimensional counterpart.
description: New version with extended results and theoretical analysis. 15 Figures
Betydninger af folkeskolens afsluttende prøver – belyst ud fra forskellige elevperspektiver
Creators: name: Rasmussen, Annette
Publisher: name: CEPRA-striben
Year: 2016

description: Artiklen omfatter en analyse af prøver i skolen i elevperspektiv: Hvilke betydninger har folkeskolens afsluttende prøver for forskellige elever i relation til deres hidtidige skoleerfaringer og for valg af fremtidige uddannelser?
Analysen bygger på en tværgående analyse af interview gennemført i tre forskellige casestudier og fokuserer på forholdet mellem habitusformer og prøvernes betydninger for motivering, disciplinering, selektering og ”valg” af uddannelse. Eleverne er unge, der er på vej til eller væk fra de ungdomsuddannelser, som aktuelle uddannelsespolitikker lægger stor vægt på, at alle unge skal sluses videre til og fastholdes i.
Analysen konkluderer, at prøverne i varierende grad har motiverende, disciplinerende og selekterende betydninger for forskellige elever.
description: CEPRA-striben, Nr. 14 (2013): Feedback
Лингвокогнитивные особенности ценностных концептов юмора (на примере американского молодежного сериала «The Big Bang Theory» – «Теория Большого Взрыва»)
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2025
Subjects: linguocognitive analysis
values
anti-values
value concepts
linguocognitive specifics of humorous statements
лингвокогнитивный анализ
ценности
антиценности
ценностные концепты
лингвокогнитивные особенности юмористических высказываний

description: Международный научно-исследовательский журнал, Выпуск 3 (153) 2025
Optical leakage mitigation in ortho-mode transducer detectors for microwave applications
Creators: name: Gualtieri, Riccardo
name: Barry, Peter S.
name: Cecil, Thomas
name: Bender, Amy N.
name: Chang, Clarence . L.
name: Hood, John C.
name: Lisovenko, Margarita
name: Yefremenko, Volodymyr G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Planar ortho-mode transducers (OMTs) are a commonly used method of coupling optical signals between waveguides and on-chip circuitry and detectors. While the ideal OMT-waveguide coupling requires minimal disturbance to the waveguide, when used for mm-wave applications the waveguide is typically constructed from two sections to allow the OMT probes to be inserted into the waveguide. This break in the waveguide is a source of signal leakage and can lead to loss of performance and increased experimental systematic errors. Here we report on the development of new OMT-to-waveguide coupling structures with the goal of reducing leakage at the detector wafer interface. The pixel to pixel optical leakage due to the gap between the coupling waveguide and the backshort is reduced by means of a protrusion that passes through the OMT membrane and electrically connects the two waveguide sections on either side of the wafer. High frequency electromagnetic simulations indicate that these protrusions are an effective method to reduce optical leakage in the gap by ~80% percent, with a ~60% filling factor, relative to an standard OMT coupling architecture. Prototype devices have been designed to characterize the performance of the new design using a relative measurement with varying filling factors. We outline the simulation setup and results, and present a chip layout and sample box that will be used to perform the initial measurements.
description: 6 pages, 4 figures, conference proceeding
Evaluering som logik og praksis i erhvervsuddannelser
Creators: name: Friche, Nanna
Publisher: name: CEPRA-striben
Year: 2016

description: Med afsæt i sociologisk, nyinstitutionel teori analyseres
evaluering som logik og praksis i uddannelserne
til smed og mediegrafiker. Ærindet er at vise,
hvordan erhvervsskolens legitimitet beror på en
evne til at spejle omverdens kulturelle konstruktioner
af kvalitet i uddannelse. Analysen identificerer en
skuemesterlogik, der er produktorienteret og en
rekontekstualiseret skolelogik, der er procesorienteret.
Herfra diskuteres implikationerne af disse
logikker for eleven, branchen og for samfundet.
Behovet for opmærksomhed på elevers evne til
refleksion som grundlag for livslang læring i
erhvervsfaglig uddannelse diskuteres i den forbindelse.
Artiklen er således et bidrag til bredere
diskussioner af kvalitet i erhvervsuddannelserne.
description: CEPRA-striben, Nr. 14 (2013): Feedback
Covariant formulation of Generalised Uncertainty Principle
Creators: name: Singh, Raghvendra
name: Kothawala, Dawood
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a formulation of the generalised uncertainty principle based on commutator $\left[ {\hat x}^i, {\hat p}_j \right]$ between position and momentum operators defined in a covariant manner using normal coordinates. We show how any such commutator can acquire corrections if the momentum space is curved. The correction is completely determined by the extrinsic curvature of the surface $p^2=$ constant in the momentum space, and results in non-commutativity of normal position coordinates $\left[ {\hat x}^i, {\hat x}^j \right] \neq 0$. We then provide a construction for the momentum space geometry as a suitable four dimensional extension of a geometry conformal to the three dimensional relativistic velocity space - the Lobachevsky space - whose curvature is determined by the dispersion relation $F(p^2)=-m^2$, with $F(x)=x$ yielding the standard Heisenberg algebra.
description: 6 pages, 3 figures, published as a Letter in Physical Review D
SEALK, dialog, feedback og individuelle udviklingsplaner
Creators: name: Madsen, Claus
Publisher: name: CEPRA-striben
Year: 2016

description: Det er skolens ledelse, der må sikre, at lærerne arbejder professionelt med den pædago-gisk-didaktiske praksis. Forudsætningen for, at man kan vurdere, om dette er tilfældet eller ej, er, at man på skoleniveau evaluerer på lærernes praksis. Som leder har man ansvaret for at vurdere lærernes præstationer og kompetencer med henblik på lærernes udvikling og læring som fagprofessionelle, på samme måde som lærerne skal (være i stand til at) understøtte og vurdere elevernes præstationer og læringsudbytte af undervisningen. Læ-rerne skal også medvirke og dermed evaluere sig selv forud for den fælles dialog omkring vurdering af kompetenceudviklingsbehov og -tiltag. Hvordan kan man varetage den komplekse opgave at lede lærernes
udvikling og læring?
Artiklen formidler nogle bud på, hvordan denne ledelsesopgave kan håndteres gennem systematisk evaluering af lærernes kompetencer, dialog, feedback og individuelle udviklingsplaner. Artiklen henvender sig til ledere (og lærere) både i folkeskolen og på ungdomsuddannelserne. Den kunne formentlig også være
til inspiration for ledere og lære-re i andre skoleformer. Den henvender sig i nogen grad også til de øverste chefniveauer for skolerne som inspiration til, hvad der kunne være behov for at understøtte i forhold til implementering i praksis.
description: CEPRA-striben, Nr. 14 (2013): Feedback
Electronics integration for the GE2/1 and ME0 GEM detector systems for the CMS Phase-2 Muon System Upgrade
Creators: name: Butalla, Stephen D.
name: Hohlmann, Marcus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Large Hadron Collider is currently undergoing its High Luminosity upgrade, which is set to increase the instantaneous luminosity by about a factor of five. Consequently, the Compact Muon Solenoid experiment is upgrading its muon spectrometer to cope with the increased muon flux in the forward region. The GE2/1 triple-Gas Electron Multiplier detector, which has recently entered the mass production phase, and the ME0 triple-GEM detector system, which is in the late prototyping phase, are undergoing electronics integration. These proceedings briefly discuss the frontend electronics for the GE2/1 and ME0 detector systems, the electronics integration testing process, and the future plans for the frontend electronics of these two detector systems by the CMS GEM Collaboration.
description: 6 pages, 6 figures, submitted to the proceedings of the Topical Workshop on Electronics for Particle Physics (TWEPP2021)
Elevfeedback som læringsfremmende undervisningsaktivitet i danskfaget i udskolingen
Creators: name: Christensen, Vibeke
name: Pjengaard, Søren
Publisher: name: CEPRA-striben
Year: 2016

description: Feedback er ifølge nyere forskning et at de tiltag,
der har allerstørst virkning på elevers læringsudbytte,
hvilket har betydet øget fokus på feedback
i praksis. Gensidig elevfeedback bidrager til at øge
mængden af feedback, men der er også udfordringer
forbundet med denne form for feedback. Disse udfordringer
er afsæt for et aktionsforskningsstudie,
hvor det undersøges, hvordan gensidig elevfeedback
kan inddrages og kvalificeres i 7. klasseelevers
arbejde med oplæsning i faget dansk i
den danske folkeskole. Artiklen præsenterer og
diskuterer en anvendelig metode til undersøgelse
af problemstillingen, opstiller en teoretisk ramme
for undersøgelsen og beskriver undersøgelsesdesignet.
På dette grundlag genereres og analyseres
data. Afslutningsvis diskuteres analysens fund i et
didaktisk og læringsteoretisk perspektiv og nogle
mulige konklusioner bliver draget.
description: CEPRA-striben, Nr. 14 (2013): Feedback
ОСОБЕННОСТИ ГЕОЛОГИИ И КЛИМАТА ЛОВОЗЁРСКИХ ТУНДР И ИХ ВЛИЯНИЕ НА РЕКРЕАЦИОННО-ТУРИСТИЧЕСКОЕ ОСВОЕНИЕ ТЕРРИТОРИИ
Creators: name: Клепиков, Олег
Publisher: name: ООО Цифра
Year: 2025
Subjects: nepheline syenites
pegmatites
mineralogical tourism
climatic conditions
Seidyavr Nature Reserve
нефелиновые сиениты
пегматиты
минералогический туризм
климатические условия
заказник Сейдъявврь

description: Международный научно-исследовательский журнал, Выпуск 3 (153) 2025
What Can Possibly Go Wrong?
Creators: name: Griesshammer, Harald W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: A lot. [In this hard, unbiased and objective look at some past and continuing blunders in following Weinberg's suggestions to arrive at a comprehensive description of Nuclear Physics using Effective Field Theories, some names and citations are withheld to protect the innocent.]
description: 20 pages LaTeX2e (pdflatex) including 4 figures as .pdf files using includegraphics and svjour3. Text-identical to publication in Few-Body Systems, Special Issue "Celebrating 30 years of the Steven Weinberg's paper Nuclear Forces from Chiral Lagrangians", but correcting journal's erroneous placing of motto
Bedömning som lärande: Vad elever kan lära sig genom att ge feedback
Creators: name: Berggren, Jessica
Publisher: name: CEPRA-striben
Year: 2016

description: Här presenteras en del av en större fallstudie som
fokuserar på bedömning som lärande med utgångspunkt
i ett arbetsområde i engelska i årskurs åtta.
Eleverna som deltog i studien fick ge feedback på
sina kamraters texter, och syftet var att undersöka
vad elever kan lära sig genom att läsa och kommentera
andras arbeten. Artikeln ger en kort bakgrund
till kamratbedömning i skolan, beskriver hur undervisningen
gick till och diskuterar resultaten från ett
didaktiskt perspektiv.
description: CEPRA-striben, Nr. 14 (2013): Feedback
A Butterfly-Accelerated Volume Integral Equation Solver for Broad Permittivity and Large-Scale Electromagnetic Analysis
Creators: name: Sayed, Sadeed B.
name: Liu, Yang
name: Gomez, Luis J.
name: Yucel, Abdulkadir C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A butterfly-accelerated volume integral equation (VIE) solver is proposed for fast and accurate electromagnetic (EM) analysis of scattering from heterogeneous objects. The proposed solver leverages the hierarchical off-diagonal butterfly (HOD-BF) scheme to construct the system matrix and obtain its approximate inverse, used as a preconditioner. Complexity analysis and numerical experiments validate the $O(N\log^2N)$ construction cost of the HOD-BF-compressed system matrix and $O(N^{1.5}\log N)$ inversion cost for the preconditioner, where $N$ is the number of unknowns in the high-frequency EM scattering problem. For many practical scenarios, the proposed VIE solver requires less memory and computational time to construct the system matrix and obtain its approximate inverse compared to a $\mathcal{H}$ matrix-accelerated VIE solver. The accuracy and efficiency of the proposed solver have been demonstrated via its application to the EM analysis of large-scale canonical and real-world structures comprising of broad permittivity values and involving millions of unknowns.
Inklusion og børn i udsatte positioner – RP-metoden som evaluering af inklusionsindsatser i dagtilbud
Creators: name: Hostrup, Mathilde Nyvang
Publisher: name: CEPRA-striben
Year: 2016

description: I denne artikel diskuteres, hvilke faktorer der er
vigtige for børns inklusion i dagtilbud – med særligt
fokus på børn i udsatte positioner. RP-metoden
præsenteres som en metode til at screene, analysere
og evaluere sin praksis for in- og eksklusion.
Analyse af, og refleksion over, den pædagogiske
praksis som en vigtig faktor i forhold til at
sikre kvalitet i dagtilbud (Fremtidens Dagtilbud,
2012), og pædagoger efterspørger metoder, som er
enkle og knap så tidskrævende. RP-metoden er et
bud på at imødekomme disse pædagogiske udfordringer.
Samtidig kan metoden være medvirkende
til at sikre, at alle børn inkluderes i dagtilbuddets
betydningsfulde fællesskaber. Denne artikel har
således to mål: 1) at sætte fokus på viden om inklusion,
med særligt fokus på børn i udsatte positioner
og 2) at præsentere en evalueringsmetode, som kan
bidrage til at spotte udsathed i den pædagogiske
praksis.
description: CEPRA-striben, Nr. 14 (2013): Feedback