cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Artificial intelligence for celestial object census: the latest technology meets the oldest science
Creators: name: Lao, Baoqiang
name: An, Tao
name: Wang, Ailing
name: Xu, Zhijun
name: Guo, Shaoguang
name: Lv, Weijia
name: Wu, Xiaocong
name: Zhang, Yingkang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Large surveys using modern telescopes are producing images that are increasing exponentially in size and quality. Identifying objects in the generated images by visual recognition is time-consuming and labor-intensive, while classifying the extracted radio sources is even more challenging. To address these challenges, we develop a deep learning-based radio source detector, named \textsc{HeTu}, which is capable of rapidly identifying and classifying radio sources in an automated manner for both compact and extended radio sources. \textsc{HeTu} is based on a combination of a residual network (ResNet) and feature pyramid network (FPN). We classify radio sources into four classes based on their morphology. The training images are manually labeled and data augmentation methods are applied to solve the data imbalance between the different classes. \textsc{HeTu} automatically locates the radio sources in the images and assigns them to one of the four classes. The experiment on the testing dataset shows an average operation time of 5.4 millisecond per image and a precision of 99.4\% for compact point-like sources and 98.1\% for double-lobe sources. We applied \textsc{HeTu} to the images obtained from the GaLactic and the Galactic Extragalactic All-Object Murchison Wide-field Array (GLEAM) survey project. More than 96.9\% of the \textsc{HeTu}-detected compact sources are matched compared to the source finding software used in the GLEAM. We also detected and classified 2,298 extended sources (including Fanaroff-Riley type I and II sources, and core-jet sources) above $5σ$. The cross-matching rates of extended sources are higher than 97\%, showing excellent performance of \textsc{HeTu} in identifying extended radio sources. \textsc{HeTu} provides an efficient tool for radio source finding and classification and can be applied to other scientific fields.
description: Accepted by Science Bulletin. Note that the final version of the paper in the journal is formatted slightly differently from the one in astro-ph because of the journal's layout
Die Herausforderung, (nicht) für andere zu sprechen
Creators: name: Sonderegger, Ruth
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2016

description: This paper seeks to demonstrate that Rancière should not be conceived of as historian (or art historian, literary or lm theorist, philosopher etc.) but, rather, as an activist attester and witness of equality and that he, thereby, transgresses all kinds of disciplinary boundaries. In order to flesh this claim out, the rst part of the essay examines Rancière’s archival studies that are devoted, according to the main claim of this paper, to verifying the capacity of subaltern beings to speak on behalf of and thereby emancipate themselves. e second part introduces Gayatri Spivak’s widely known contention that the subalterns cannot always and everywhere speak for themselves as a critique of Rancière’s basic assumption. Whereas the third section focuses on Rancière’s account of equality in order to fend o some dimensions of Spivakian critique, the forth aims at showing that and why both Rancière’s account of equality and his activity as witness and attester of equality would have profited tremendously from taking note of Spivak in particular and the historical approach of the subaltern studies group in general.
description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 27 Nr. 1 (2016): Apropos Rancière
Criticità e sfide giuridiche legate all'utilizzo dell'AI generativa (UniSapienza, 03/04/2025)
Creators: name: Aliprandi, Simone
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Artificial intelligence
subject: Intellectual Property
subject: Copyright

description: Le slides utilizzate dal Prof. Simone Aliprandi per la lezione intitolata "Criticità e sfide giuridiche legate all'utilizzo dell’AI generativa" e tenuta il 2 aprile 2025 all'interno del Master in "Management, marketing e comunicazione" della musica dell'Università La Sapienza di Roma.
Superquadric Object Representation for Optimization-based Semantic SLAM
Creators: name: Tschopp, Florian
name: Nieto, Juan
name: Siegwart, Roland
name: Cadena, Cesar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Introducing semantically meaningful objects to visual Simultaneous Localization And Mapping (SLAM) has the potential to improve both the accuracy and reliability of pose estimates, especially in challenging scenarios with significant view-point and appearance changes. However, how semantic objects should be represented for an efficient inclusion in optimization-based SLAM frameworks is still an open question. Superquadrics(SQs) are an efficient and compact object representation, able to represent most common object types to a high degree, and typically retrieved from 3D point-cloud data. However, accurate 3D point-cloud data might not be available in all applications. Recent advancements in machine learning enabled robust object recognition and semantic mask measurements from camera images under many different appearance conditions. We propose a pipeline to leverage such semantic mask measurements to fit SQ parameters to multi-view camera observations using a multi-stage initialization and optimization procedure. We demonstrate the system's ability to retrieve randomly generated SQ parameters from multi-view mask observations in preliminary simulation experiments and evaluate different initialization stages and cost functions.
Meta-learning for downstream aware and agnostic pretraining
Creators: name: Luo, Hongyin
name: Dong, Shuyan
name: Chuang, Yung-Sung
name: Li, Shang-Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Neural network pretraining is gaining attention due to its outstanding performance in natural language processing applications. However, pretraining usually leverages predefined task sequences to learn general linguistic clues. The lack of mechanisms in choosing proper tasks during pretraining makes the learning and knowledge encoding inefficient. We thus propose using meta-learning to select tasks that provide the most informative learning signals in each episode of pretraining. With the proposed method, we aim to achieve better efficiency in computation and memory usage for the pretraining process and resulting networks while maintaining the performance. In this preliminary work, we discuss the algorithm of the method and its two variants, downstream-aware and downstream-agnostic pretraining. Our experiment plan is also summarized, while empirical results will be shared in our future works.
description: Extended abstract
Combining FAIR Digital Object Implementation Concepts in a Real-Life Application
Creators: name: Heinrichs, Benedikt Paul Anton
name: Hunke, Sirieam Marie
name: Politze, Marius
Publisher: name: RWTH Aachen University
Year: 2025

description: International FAIR Digital Objects Implementation Summit 2024 : 20 - 21 March 2024, Berlin / Editors: Peter Wittenburg, Claudia Biniossek, Larry Lannom, Dirk Betz International FAIR Digital Objects Implementation Summit 2024, FDO Summit 2024, Berlin, Germany, 20 Mar 2024 - 21 Mar 2024; Hannover : TIB Open Publishing, Open Conference Proceedings 5, 1-4 (2025). doi:10.52825/ocp.v5i.1173
description: Published by TIB Open Publishing, Hannover
Estimating the Parameters of Sgr A*'s Accretion Flow Via Millimeter VLBI
Creators: name: Broderick, Avery E.
name: Fish, Vincent L.
name: Doeleman, Sheperd S.
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent millimeter-VLBI observations of Sagittarius A* (Sgr A*) have, for the first time, directly probed distances comparable to the horizon scale of a black hole. This provides unprecedented access to the environment immediately around the horizon of an accreting black hole. We leverage both existing spectral and polarization measurements and our present understanding of accretion theory to produce a suite of generic radiatively inefficient accretion flow (RIAF) models of Sgr A*, which we then fit to these recent millimeter-VLBI observations. We find that if the accretion flow onto Sgr A* is well described by a RIAF model, the orientation and magnitude of the black hole's spin is constrained to a two-dimensional surface in the spin, inclination, position angle parameter space. For each of these we find the likeliest values and their 1-sigma & 2-sigma errors to be a=0(+0.4+0.7), inclination=50(+10+30)(-10-10) degrees, and position angle=-20(+31+107)(-16-29) degrees, when the resulting probability distribution is marginalized over the others. The most probable combination is a=0(+0.2+0.4), inclination=90(-40-50) degrees and position angle=-14(+7+11)(-7-11) degrees, though the uncertainties on these are very strongly correlated, and high probability configurations exist for a variety of inclination angles above 30 degrees and spins below 0.99. Nevertheless, this demonstrates the ability millimeter-VLBI observations, even with only a few stations, to significantly constrain the properties of Sgr A*.
description: 10 pages, 7 figures, accepted by ApJ
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Attiya, Hagit
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2020
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Software and its engineering → Distributed systems organizing principles
subject: Computing methodologies → Distributed computing methodologies
subject: Computing methodologies → Concurrent computing methodologies
subject: Hardware → Fault tolerance
subject: Networks
subject: Information systems → Data structures
subject: Theory of computation
subject: Theory of computation → Models of computation
subject: Theory of computation → Design and analysis of algorithms

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 179, 34th International Symposium on Distributed Computing (DISC 2020), pages 0:i-0:xviii
Microgrid Deployments and Lessons Learned
Creators: M. AHMED
E. VAAHEDI
E. AMUNDSON
M. SHAHIDEHPOUR
Publisher: name: IEEE
Year: 2021

2021 ISGT NA Panel Presentation
Microgrids provide resiliency, reliability, efficiency and economic benefits. With the increasing penetration of microgrids, this panel session explores the deployment of microgrids and elaborates on lessons learned.
Οι νεότερες εξελίξεις της νομολογίας του Ευρωπαϊκού Δικαστηρίου των Δικαιωμάτων του Ανθρώπου, του Δικαστηρίου της Ευρωπαϊκής Ένωσης και των ελληνικών ανώτατων δικαστηρίων στην εφαρμογή της αρχής «ne bis in idem
Creators: name: Παπαδοπούλου, Καλλιρρόη-Ελένη Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: κριτήρια Engel
διπλή δίωξη ή ποινή για το ίδιο αδίκημα
A και B κατά Νορβηγίας
NE BIS IN IDEM
Engel
Right not to be tried or punished twice

description: Σκοπός της μεταπτυχιακής διπλωματικής εργασίας ήταν η μελέτη των νεότερων εξελίξεων στη νομολογία του Ευρωπαϊκού Δικαστηρίου των Δικαιωμάτων του Ανθρώπου (ΕΔΔΑ), του Δικαστηρίου της Ευρωπαϊκής Ένωσης (ΔΕΕ) και των ελληνικών ανωτάτων δικαστηρίων ως προς την εφαρμογή της αρχής «ne bis in idem». Παρουσιάσαμε τον μηχανισμό ελέγχου παραβίασης της αρχής από κάθε ένα από τα ανωτέρω δικαστήρια (έλεγχος του ποινικού χαρακτήρα μιας διαδικασίας δυνάμει των κριτηρίων Engel, έλεγχος των στοιχείων idem και bis, κρίση των περιπτώσεων, που δικαιολογείται η διπλή διαδικασία, κατά το ΕΔΔΑ, και των προϋποθέσεων αιτιολογημένου περιορισμού εφαρμογής της αρχής, κατά το ΔΕΕ) καθώς και το παρεχόμενο επίπεδο προστασίας από την αρχή. Στη συνέχεια, παραθέσαμε αναλυτικά τη νεότερη νομολογία των ανωτέρω δικαστηρίων, ΕΔΔΑ, ΔΕΕ και εθνικών, ενώ μας απασχόλησε η εύρεση κοινών στοιχείων και αντιθέσεων ως προς την εφαρμογή της αρχής, αντιπαραθέτοντας, αφενός, τη νομολογία του ΕΔΔΑ και του ΔΕΕ, αφετέρου, τη νομολογία του ΔΕΕ στους διάφορους τομείς του ενωσιακού δικαίου. Τέλος, μας απασχόλησε η υιοθέτηση των πρόσφατων εξελίξεων στη νομολογία του ΕΔΔΑ και του ΔΕΕ από την εθνική μας νομολογία.
description: The aim of the present thesis was the study of the recent developments in the case law of the European Court of Human Rights (ECtHR), the Court of Justice of the European Union (CJEU) and the Greek supreme courts as regards the application of the principle "ne bis in idem". We presented the mechanism of control of the violation of the principle by each of the above courts (control of the criminal nature of a procedure under the Engel criteria, control of the elements idem and bis, judging the cases where the ECtHR justifies dual proceedings and the conditions of reasoned limitation of the application of the principle under the CJEU) as well as the level of protection provided by the principle. We then set out in detail the recent case law of the above courts, ECtHR, CJEU and national, and were concerned to find common elements and contrasts in the application of the principle, contrasting, on the one hand, the case law of the ECtHR and CJEU and, on the other hand, the case law of the CJEU in the various areas of EU law. Finally, we were concerned with the adoption of recent developments in the case law of the ECtHR and the CJEU by our national case law.
THE EFFECTIVENESS OF LEARNING SUPERVISION FOR GRADUATES COMPETITIVENESS IN THE COVID-19 PANDEMIC (Case Study at SD Muhammadiyah 2 Kejapanan - Gempol)
Creators: name: ACHMAD SAMSONI
Publisher: name: Zenodo
Year: 2022
Subjects: Supervision, Hybrid Learning, Covid-19 Pandemic Introduction

description: Some research data explains that one of the causes of the decline in the quality and competitiveness of education graduates today is the covid-19 pandemic. The COVID-19 pandemic has had a tremendous impact on the world of education, especially. Therefore, educational institutions are expected to be able to maximize their role, both in terms of leadership design, improvement of the quality of learning and curriculum, supervision, formation of school climate/atmosphere, self-assessment and evaluation and involvement of parents (society), so that the pandemic phenomenon is no longer an obstacle but as an obstacle. strategic momentum to formulate a new strategy as a guarantee of the quality and competitiveness of graduates. One strategy that can be done is to conduct learning supervision. Supervision activities are expected to be able to improve the process of learning activities for students so that they are able to improve the quality of educational services and improve the quality and competitiveness of graduates. The aims of this study: 1) describe the application of standards and learning models during the pandemic; 2) describe learning supervision strategies during the pandemic. This research is a qualitative research. The research data was obtained using structured interview techniques, observation and documentation studies which were analyzed based on the theory of Miles & Huberman through the stages of reduction, presentation, inference and interpretation of the data. The results of this study explain that; 1) Learning at SD Muhammadiyah 2 Kejapanan during the Covid-19 pandemic used a hybrid learning model, namely 2-way learning (offline and online); 2) Learning supervision is carried out by school principals during the Covid-19 pandemic with the aim of maintaining and even improving the quality and competitiveness of graduates.
АТМОСФЕРА ҲАВОСИДАГИ ЗАРАРЛИ МОДДАЛАРНИНГ ЭКОЛОГИК НОҚУЛАЙ САНОАТ ҲУДУДИДА ЯШОВЧИ КАТТА ЁШДАГИ АҲОЛИ ОРГАНИЗМИГА ТАЪСИРИ
Creators: name: Ҳакимов, Тўймурод
Publisher: name: Zenodo
Year: 2025

description: Ҳудудларда атроф-муҳит ҳолатига ҳақиқий баҳо аҳоли саломатлиги ҳолатини таҳлил қилиш орқали берилиши мумкин. Иммунитет тизими мураккаб кўп компетентли тизимдир. Шунинг учун у салбий экологик омиллар таъсирига жуда сезгир. Инсон танасига деярли ҳар қандай, ҳатто энг аҳамиятсиз ташқи таъсир, иммунитет тизимининг ҳолатини ўзгаришига олиб келади.
Politisches Film-Denken durchkreuzt Ästhetisierungsneigung
Creators: name: Robnik, Drehli
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2016

description: .
description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 27 Nr. 1 (2016): Apropos Rancière
Boosting promotes advantageous risk-taking
Creators: name: Folke, Tomas
name: Bertoldo, Giulia
name: D’Souza, Darlene
name: Alì, Sonia
name: Stablum, Federica
name: Ruggeri, Kai
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/4014/477
/4014/4013
article

description: Abstract: Due to the prevalence and importance of choices with uncertain outcomes, it is essential to establish what interventions improve risky decision-making, how they work, and for whom. Two types of low-intensity behavioural interventions are promising candidates: nudges and boosts. Nudges guide people to better decisions by altering how a choice is presented, without restricting any options or modifying the underlying payoff matrix. Boosts, on the other hand, teach people decision strategies that focus their attention on key aspects of the choice, which allows them to make more informed decisions. A recent study compared these two types of interventions and found that boosts worked better for risky choices aimed at maximising gains, whereas nudges worked best for choices aimed at minimising losses. Though intriguing, these findings could not be easily interpreted because of a limitation in the items used. Here we replicate that study, with an extended item set. We find that boosts work by promoting risk-taking when it is beneficial, whereas nudges have a consistent (lesser) impact, regardless of whether risk-taking is beneficial or not. These results suggest that researchers and policymakers should consider the base rate risk propensity of the target population when designing decision-support systems.
J. G. Ballard’s Surrealist Liberalism
Creators: name: Bell, Duncan
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Articles
J. G. Ballard
liberalism
surrealism
Freud
psychoanalysis
war

description: J. G. Ballard was one of the most original writers of the postwar era. Although he has drawn considerable attention from scholars across various fields, the character of his political thinking remains a puzzle. He has been claimed as both a radical and a conservative, while others suggest that his work expresses no distinct political stance. Drawing on a wide range of source materials, I argue that from the 1960s to the early years of the twenty-first century Ballard developed a bold and intriguing account of liberalism grounded in insights drawn from surrealism and Freudian psychoanalysis. This was an idiosyncratic version of the liberalism of fear. The essay analyzes Ballard’s sociopolitical vision, focusing in particular on his account of human nature, social reality, totalitarianism, and the power of the imagination.
Green-Kubo formula for Boltzmann and Fermi-Dirac statistics
Creators: name: Deng, X. G.
name: Ma, Y. G.
name: Zhang, Y. X.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Shear viscosity of nuclear matter is extracted via the Green-Kubo formula and the Gaussian thermostated SLLOD algorithm (the shear rate method) in a periodic box by using an improved quantum molecular dynamic (ImQMD) model without mean field, also it is calculated by a Boltzmann-type equation. Here a new form of the Green-Kubo formula is put forward in the present work. For classical limit at nuclear matter densities of $0.4ρ_{0}$ and $1.0ρ_{0}$, shear viscosity by the traditional and new form of the Green-Kubo formula as well as the SLLOD algorithm are coincident with each other. However, for non-classical limit, shear viscosity by the traditional form of the Green-Kubo formula is higher than those obtained by the new form of the Green-Kubo formula as well as the SLLOD algorithm especially in low temperature region. In addition, shear viscosity from the Boltzmann-type equation is found to be less than that by the Green-Kubo method or the SLLOD algorithm for both classical and non-classical limits.
description: 8 pags, 5 figures
title: Advancing Research Through DataCite’s Global Access Fund: Universidad Autónoma de Zacatecas, Mexico
Creators: name: Garcia-Guerrero, Montserrat
name: Mejias, Gabriela
name: Garduño-Magaña, Arturo
Publisher: name: DataCite
publisherIdentifier: https://ror.org/04wxnsj81
publisherIdentifierScheme: ROR
Year: 2025

description: In 2024, thanks to the DataCite Global Access Fund, the Autonomous University of Zacatecas (Mexico) developed a project to promote open science. In this blog, we tell you about the development of the project and its results.
Infrared and millimetre-wavelength evidence for cold accretion within a z = 2.83 Lyman-alpha blob
Creators: name: Smith, Daniel J. B.
name: Jarvis, Matt J.
name: Lacy, Mark
name: Martínez-Sansigre, Alejo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper discusses infrared and millimetre-wavelength observations of a Lyman-alpha blob discovered by Smith & Jarvis, a candidate for ionization by the cold accretion scenario discussed in Fardal et al. and Dijkstra et al. We have observed the counterpart galaxy at infrared wavelengths in deep observations with the Spitzer Space Telescope using the IRAC 3.6, 4.5, 5.8 & 8.0 micron and MIPS 24 micron bands, as well as using the Max-Planck Millimeter Bolometer Array at a wavelength of 1.2mm with the IRAM 30 metre telescope. These observations probe the > 95kpc Lyman-alpha halo for the presence of obscured AGN components or the presence of a violent period of star formation invoked by other models of ionisation for these mysterious objects. 24 micron observations suggest that an obscured AGN would be insufficiently luminous to ionize the halo, and that the star formation rate within the halo may be as low as <140 Msolar/yr depending on the model SED used. This is reinforced by our observations at 1.2mm using MAMBO-2, which yield an upper limit of SFR <550 Msolar/yr from our non-detection to a 3 sigma flux limit of 0.86 mJy/beam. Finding no evidence for either AGN or extensive star formation, we conclude that this halo is ionised by a cold accretion process. We derive model SEDs for the host galaxy, and use the Bruzual & Charlot and Maraston libraries to show that the galaxy is well described by composite stellar populations of total mass 3.42 +/- 0.13 x 10^11 Msolar or 4.35 +/- 0.16 x 10^11 Msolar depending on the model SEDs used.
description: 7 pages, 5 figures; accepted for publication in MNRAS
Mass determination of protoplanetary disks from dust evolution
Creators: name: Franceschi, Riccardo
name: Birnstiel, Tilman
name: Henning, Thomas
name: Pinilla, Paola
name: Semenov, Dmitry
name: Zormpas, Apostolos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The mass of protoplanetary disks is arguably one of their most important quantities shaping their evolution toward planetary systems, but it remains a challenge to determine this quantity. Using the high spatial resolution now available on telescopes such as the Atacama Large Millimeter/submillimeter Array (ALMA), recent studies derived a relation between the disk surface density and the location of the "dust lines". This is a new concept in the field, linking the disk size at different continuum wavelengths with the radial distribution of grain populations of different sizes. We aim to use a dust evolution model to test the dependence of the dust line location on disk gas mass. In particular, we are interested in the reliability of the method for disks showing radial substructures, as recent high-resolution observations revealed. Our models show that the determination of the dust line location is a promising approach to the mass estimate of protoplanetay disks, but the exact relation between the dust line location and disk mass depends on the structure of the particular disk. We calibrated the relation for disks without evidence of radial structures, while for more complex structures we ran a simple dust evolution model. However, this method fails when there is evidence of strong dust traps. It is possible to reveal when dust evolution is dominated by traps, providing the necessary information for when the method should be applied with caution.
description: 14 pages, 18 figures, accepted by Astronomy & Astrophysics
On surface brightness fluctuations: probabilistic and statistical bases I: Stellar population and theoretical SBF
Creators: name: Cervino, M.
name: Luridiana, V.
name: Jamet, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work aims to provide a theoretical formulation of Surface Brightness Fluctuations (SBF) in the framework of probabilistic synthesis models, and to distinguish between the different distributions involved in the SBF definition. RESULTS: We propose three definitions of SBF: (i) stellar population SBF, which can be computed from synthesis models and provide an intrinsic metric of fit for stellar population studies; (ii) theoretical SBF, which include the stellar population SBF plus an additional term that takes into account the distribution of the number of stars per resolution element psi(N); theoretical SBF coincide with Tonry & Schneider (1998) definition in the very particular case that psi(N) is assumed to be a Poisson distribution. However, the Poisson contribution to theoretical SBF is around 0.1% of the contribution due to the stellar population SBF, so there is no justification to include any reference to Poisson statistics in the SBF definition; (iii) observational SBF, which are those obtained in observations that are distributed around the theoretical SBF. Finally, we show alternative ways to compute SBF and extend the application of stellar population SBF to defining a metric of fitting for standard stellar population studies. CONCLUSIONS: We demostrate that SBF are observational evidence of a probabilistic paradigm in population synthesis, where integrated luminosities have an intrinsic distributed nature, and they rule out the commonly assumed deterministic paradigm of stellar population modeling.
description: A&A accepted
Geschlechterverhältnisse im Spanischen Bürger*innenkrieg
Creators: name: Bianchi, Vera
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2016

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 27 Nr. 3 (2016): Perspektivenwechsel. Geschlechterverhältnisse im Austrofaschismus
Pressebüro und Zensur im Spanischen Bürger*innenkrieg
Creators: name: Lugschitz, Reneé
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2016

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 27 Nr. 3 (2016): Perspektivenwechsel. Geschlechterverhältnisse im Austrofaschismus
A New Approach to mu-Bmu
Creators: name: Csaki, Csaba
name: Falkowski, Adam
name: Nomura, Yasunori
name: Volansky, Tomer
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new approach to the mu-Bmu problem of gauge mediated supersymmetry breaking. Rather than reducing the generically large contribution to Bmu we point out that acceptable electroweak symmetry breaking can be achieved with mu^2 << Bmu if at the same time Bmu << m_Hd^2. This hierarchy can easily appear in models where the Higgs fields are directly coupled to the supersymmetry breaking sector. Such models can yield novel electroweak symmetry breaking vacua, can deal with the supersymmetric flavor and CP problems, allow for gauge coupling unification, and result in distinct phenomenological predictions for the spectrum of superparticles.
description: 5 pages; reference added
Axionic Extensions of the Supersymmetric Standard Model
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Supersymmetric Standard Model is a benchmark theoretical framework for particle physics, yet it suffers from a number of deficiencies, chief among which is the strong CP problem. Solving this with an axion in the context of selected new particles, it is shown in three examples that other problems go away automatically as well, resulting in (-)^L and (-)^{3B} conservation, viable combination of two dark-matter candidates, successful baryogenesis, seesaw neutrino masses, and verifiable experimental consequences at the TeV energy scale.
description: 12 pages, 1 figure
Compensatory ion transport buffers daily protein rhythms to regulate osmotic balance and cellular physiology.
Creators: name: Stangherlin, Alessandra
name: Watson, Joseph L
name: Wong, David C S
name: Barbiero, Silvia
name: Zeng, Aiwei
name: Seinkmane, Estere
name: Chew, Sew Peak
name: Beale, Andrew D
name: Hayter, Edward A
name: Guna, Alina
name: Inglis, Alison J
name: Putker, Marrit
name: Bartolami, Eline
name: Matile, Stefan
name: Lequeux, Nicolas
name: Pons, Thomas
name: Day, Jason
name: Van Ooijen, Gerben
name: Voorhees, Rebecca M
name: Bechtold, David A
name: Derivery, Emmanuel
name: Edgar, Rachel S
name: Newham, Peter
name: O'Neill, John S
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: Between 6-20% of the cellular proteome is under circadian control and tunes mammalian cell function with daily environmental cycles. For cell viability, and to maintain volume within narrow limits, the daily variation in osmotic potential exerted by changes in the soluble proteome must be counterbalanced. The mechanisms and consequences of this osmotic compensation have not been investigated before. In cultured cells and in tissue we find that compensation involves electroneutral active transport of Na+, K+, and Cl- through differential activity of SLC12A family cotransporters. In cardiomyocytes ex vivo and in vivo, compensatory ion fluxes confer daily variation in electrical activity. Perturbation of soluble protein abundance has commensurate effects on ion composition and cellular function across the circadian cycle. Thus, circadian regulation of the proteome impacts ion homeostasis with substantial consequences for the physiology of electrically active cells such as cardiomyocytes.
Molecules with ALMA at Planet-forming Scales (MAPS XVIII): Kinematic Substructures in the Disks of HD 163296 and MWC 480
Creators: name: Teague, Richard
name: Bae, Jaehan
name: Aikawa, Yuri
name: Andrews, Sean M.
name: Bergin, Edwin A.
name: Bergner, Jennifer B.
name: Boehler, Yann
name: Booth, Alice S.
name: Bosman, Arthur D.
name: Cataldi, Gianni
name: Czekala, Ian
name: Guzmán, Viviana V.
name: Huang, Jane
name: Ilee, John D.
name: Law, Charles J.
name: Gal, Romane Le
name: Long, Feng
name: Loomis, Ryan A.
name: Ménard, François
name: Öberg, Karin I.
name: Pérez, Laura M.
name: Schwarz, Kamber R.
name: Sierra, Anibal
name: Walsh, Catherine
name: Wilner, David J.
name: Yamato, Yoshihide
name: Zhang, Ke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We explore the dynamical structure of the protoplanetary disks surrounding HD 163296 and MWC 480 as part of the Molecules with ALMA at Planet Forming Scales (MAPS) large program. Using the $J = 2-1$ transitions of $^{12}$CO, $^{13}$CO and C$^{18}$O imaged at spatial resolutions of $\sim 0.^{\prime \prime}15$ and with a channel spacing of $200$ ${\rm m\,s^{-1}}$, we find perturbations from Keplerian rotation in the projected velocity fields of both disks ($\lesssim\!5\%$ of the local Keplerian velocity), suggestive of large-scale (10s of au in size), coherent flows. By accounting for the azimuthal dependence on the projection of the velocity field, the velocity fields were decomposed into azimuthally averaged orthogonal components, $v_ϕ$, $v_r$ and $v_z$. Using the optically thick $^{12}$CO emission as a probe of the gas temperature, local variations of $\approx\! 3$ K ($\approx\! 5 \%$ relative changes) were observed and found to be associated with the kinematic substructures. The MWC 480 disk hosts a suite of tightly wound spiral arms. The spirals arms, in conjunction with the highly localized perturbations in the gas velocity structure (kinematic planetary signatures), indicate a giant planet, $\sim\! 1$ $M_{\rm Jup}$, at a radius of $\approx 245$ au. In the disk of HD 163296, the kinematic substructures were consistent with previous studies of Pinte et al. (2018a) and Teague et al. (2018a) advocating for multiple $\sim\! 1$ $M_{\rm Jup}$ planets embedded in the disk. These results demonstrate that molecular line observations that characterize the dynamical structure of disks can be used to search for the signatures of embedded planets. This paper is part of the MAPS special issue of the Astrophysical Journal Supplement.
description: 32 pages, 21 figures, accepted for publication in ApJS, MAPS cross-references updated
The ionizing background at the end of overlap
Creators: name: Furlanetto, Steven
name: Mesinger, Andrei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One of the most sought-after signatures of reionization is a rapid increase in the ionizing background (usually measured through the Lyman-alpha optical depth toward distant quasars). Conventional wisdom associates this with the "overlap" phase when ionized bubbles merge, allowing each source to affect a much larger volume. We argue that this picture fails to describe the transition to the post-overlap Universe, where Lyman-limit systems absorb ionizing photons over moderate lengthscales (20-100 Mpc). Using an analytic model, we compute the probability distribution of the amplitude of the ionizing background throughout reionization, including both discrete ionized bubbles and Lyman-limit systems (parameterized by an attenuation length). We show that overlap does not by itself cause a rapid increase in the ionizing background or a rapid decrease in the mean Lyman-alpha transmission toward distant quasars. More detailed semi-numeric models support these conclusions. We argue that rapid changes should instead be interpreted as evolution in the attenuation length itself, which may or may not be directly related to overlap.
description: submitted to MNRAS, 7 pages, 5 figures
Harry Kesten’s work in probability theory
Creators: name: Grimmett, Geoffrey R.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
Probability
Random walk
Branching process
Random matrix
Diffusion limited aggregation
Percolation
60-03
60G50
60J80
60B20
60K35
82B20

description: Abstract: We survey the published work of Harry Kesten in probability theory, with emphasis on his contributions to random walks, branching processes, percolation, and related topics.
The Late Stellar Assembly of Massive Cluster Galaxies Via Major Merging
Creators: name: Tran, Kim-Vy H.
name: Moustakas, John
name: Gonzalez, Anthony H.
name: Bai, Lei
name: Zaritsky, Dennis
name: Kautsch, Stefan J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present multi-wavelength observations of the brightest galaxies in four X-ray luminous groups at z~0.37 that will merge to form a cluster comparable in mass to Coma. Ordered by increasing stellar mass, the four brightest group galaxies (BGGs) present a time sequence where BGG-1, 2, and 3 are in merging systems and BGG-4 is a massive remnant [M(stars)=6.7x10^(11) Msun]. BGG-1 and 2 have bright, gravitationally bound companions and BGG-3 has two nuclei separated by only 2.5 kpc, thus merging at z<0.5 increases the BGG mass by >40% (merging timescale<2 Gyr) and V-band luminosity by ~0.4 mag. The BGGs' rest-frame (B-V) colors correspond to stellar ages of >3 Gyr, and their tight scatter in (B-V) color [sigma(BV)=0.032] confirms they formed the bulk of their stars at z>0.9. Optical spectroscopy shows no signs of recent (<1.5 Gyr) or ongoing star formation. Only two BGGs are weakly detected at 24 microns, and X-ray and optical data indicate the emission in BGG-2 is due to an AGN. All four BGGs and their companions are early-type (bulge-dominated) galaxies, and they are embedded in diffuse stellar envelopes up to ~140 kpc across. The four BGG systems must evolve into the massive, red, early-type galaxies dominating local clusters. Our results show that: 1) massive galaxies in groups and clusters form via dissipationless merging; and 2) the group environment is critical for this process.
description: Accepted for publication in ApJ Letters
Supercurrent: Vector Hair for an AdS Black Hole
Creators: name: Basu, Pallab
name: Mukherjee, Anindya
name: Shieh, Hsien-Hang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In arXiv:0803.3295 [hep-th] a holographic black hole solution is discussed which exhibits a superconductor like transition. In the superconducting phase the black holes show infinite DC conductivity. This gives rise to the possibility of deforming the solutions by turning on a time independent current (supercurrent), without any electric field. This type of deformation does not exist for normal (non-superconducting) black holes, due to the no-hair theorems. In this paper we have studied such a supercurrent solution and the associated phase diagram. Interestingly, we have found a "special point" (critical point) in the phase diagram where the second order superconducting phase transition becomes first order. Supercurrent in superconducting materials is a well studied phenomenon in condensed matter systems. We have found some qualitative agreement with known results.
description: 23 pages, latex
Evolution of environment dependent galaxy properties in the Sloan Digital Sky Survey
Creators: name: O'Mill, Ana Laura
name: Padilla, Nelson
name: Lambas, Diego Garcia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use photometric redshifts to analyse the effect of local environment on galaxy colours at redshifts z < 0.63 in the SDSS data release 6. We construct mock SDSS-DR6 catalogues using semi-analytic galaxies to study possible systematic effects on the characterisation of environment and colour statistics due to the uncertainty in the determination of redshifts. We use the projected galaxy density derived from the distance to the nearest neighbours with a suitable radial velocity threshold to take into account the uncertainties in the photometric redshift estimates. Our findings indicate that the use of photometric redshifts greatly improves estimates of projected local galaxy density when galaxy spectra are not available. We find a tight relationship between spectroscopic and photometric derived densities, both in the SDSS-DR6 data (up to z=0.3) and mock catalogues (up to z=0.63). At z=0, faint galaxies show a clear increase of the red galaxy fraction as the local density increases. Bright galaxies, on the other hand, show a constant red galaxy fraction. We are able to track the evolution of this fraction to z=0.55 for galaxies brighter than M_r=-21.5 and find that the fraction of blue galaxies with respect to the total population progressively becomes higher as the redshift increases, at a rate of 15% Gyr. Also, at any given redshift, bright galaxies show a larger red population, indicating that the star-formation activity shifts towards smaller objects as the redshift decreases.
description: 9 pages, 6 figures. Accepted by MNRAS
Gravitational fields as generalized string models
Creators: name: Hernandez, Francisco J.
name: Nettel, Francisco
name: Quevedo, Hernando
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that Einstein's main equations for stationary axisymmetric fields in vacuum are equivalent to the motion equations for bosonic strings moving on a special nonflat background. This new representation is based on the analysis of generalized harmonic maps in which the metric of the target space explicitly depends on the parametrization of the base space. It is shown that this representation is valid for any gravitational field which possesses two commuting Killing vector fields. We introduce the concept of dimensional extension which allows us to consider this type of gravitational fields as strings embedded in D-dimensional nonflat backgrounds, even in the limiting case where the Killing vector fields are hypersurface orthogonal.
description: latex, 25 pages
About a (standard model) universe dominated by the right matter
Creators: name: Barenboim, G
name: Vives, O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the phenomenology of a prolonged early epoch of matter domination by an unstable but very long-lived massive particle. This new matter domination era can help to relax some of the requirements on the primordial inflation. Its main effect is the huge entropy production produced by the decays of such particle that can dilute any possible unwanted relic, as the gravitino in supersymmetric models, and thus relax the constraints on the inflationary reheating temperature. Furthermore, a long period of matter domination reduces the number of $e$-foldings after the horizon crossing by observable perturbations and therefore the requirements on flatness of the inflationary potential. A natural candidate for such heavy, long-lived particle already present in the Standard Model of the electroweak interactions would be a heavy right-handed neutrino. In this case, we show that its decays can also generate the observed baryon asymmetry with right-handed neutrino masses well above the bound from gravitino overproduction.
description: 14 pages, 3 figures. References on late time enthropy release included, several points clarified
Introducing Identity
Creators: name: Griffiths, Owen
name: Ahmed, Arif
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
Identity
Logical constants
Inferentialism
Meaning-is-use
Proof-theoretic semantics

description: Abstract: The best-known syntactic account of the logical constants is inferentialism . Following Wittgenstein’s thought that meaning is use, inferentialists argue that meanings of expressions are given by introduction and elimination rules. This is especially plausible for the logical constants, where standard presentations divide inference rules in just this way. But not just any rules will do, as we’ve learnt from Prior’s famous example of tonk, and the usual extra constraint is harmony. Where does this leave identity? It’s usually taken as a logical constant but it doesn’t seem harmonious: standardly, the introduction rule (reflexivity) only concerns a subset of the formulas canvassed by the elimination rule (Leibniz’s law). In response, Read [5, 8] and Klev [3] amend the standard approach. We argue that both attempts fail, in part because of a misconception regarding inferentialism and identity that we aim to identify and clear up.
Very-High-Energy Emission From Pulsars
Creators: name: Harding, Alice K.
name: Venter, Christo
name: Kalapotharakos, Constantinos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Air-Cherenkov telescopes have detected pulsations at energies above 50 GeV from a growing number of Fermi pulsars. These include the Crab, Vela, PSR B1706-44 and Geminga, with the first two having pulsed detections above 1 TeV. In some cases, there appears to be very-high-energy (VHE) emission that is an extension of the Fermi spectra to high energies, while in other cases, additional higher-energy spectral components that require a separate emission mechanism may be present. We present results of broad-band spectral modeling using global magnetosphere fields and multiple emission mechanisms that include synchro-curvature (SC) and inverse Compton scattered (ICS) radiation from accelerated particles (primaries) and synchrotron-self Compton (SSC) emission from lower-energy pairs. Our models predict three distinct VHE components: SC from primaries whose high-energy tail can extend to 100 GeV, SSC from pairs that can extend to several TeV and ICS from primary particles accelerated in the current sheet, scattering pair synchrotron radiation, that appears beyond 10 TeV. Our models suggest that H.E.S.S.-II and MAGIC have detected the high-energy tail of the primary SC component that produces the Fermi spectrum in Vela, Geminga and PSR B1706-44. We argue that the ICS component peaking above 10 TeV from Vela has been seen by H.E.S.S. Detection of this emission component from the Crab and other pulsars is possible with HAWC and CTA, and directly measures the maximum particle energy in pulsars.
description: 28 pages, 14 figures, accepted for publication in Astrophysical Journal
Extending the baseline: Spitzer Mid-Infrared Photometry of Globular Cluster Systems in the Centaurus A and Sombrero Galaxies
Creators: name: Spitler, Lee R.
name: Forbes, Duncan A.
name: Beasley, Michael A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spitzer IRAC mid-infrared photometry is presented for the globular cluster (GC) systems of the NGC 5128 ("Centaurus A") and NGC 4594 ("Sombrero") galaxies. Existing optical photometric and spectroscopic are combined with this new data in a comprehensive optical to mid-IR colour catalogue of 260 GCs. Empirical colour-metallicity relationships are derived for all optical to mid-IR colour combinations. These colours prove to be very effective quantities to test the photometric predictions of simple stellar population (SSP) models. In general, four SSP models show larger discrepancies between each other and the data at bluer wavelengths, especially at high metallicities. Such differences become very important when attempting to use colour-colour model predictions to constrain the ages of stellar populations. Furthermore, the age-substructure determined from colour-colour diagrams and 91 NGC 5128 GCs with spectroscopic ages from Beasley et al. (2008) are inconsistent, suggesting any apparent GC system age-substructure implied by a colour-colour analysis must be verified independently. Unlike blue wavebands, certain optical to mid-IR colours are insensitive to the flux from hot horizontal branch stars and thus provide an excellent metallicity proxy. The NGC 5128 GC system shows strong bimodality in the optical R-band to mid-IR colour distributions, hence proving it is bimodal in metallicity. In this new colour space, a colour-magnitude trend, a "blue tilt", is found in the NGC 5128 metal-poor GC data. The NGC 5128 young GCs do not contribute to this trend. [abridged]
description: 16 pages, 12 colour figures. To be published in MNRAS. Catalogue available from the first author. Full resolution copy available here http://lee.spitler.googlepages.com/spitzer_spitler.pdf