cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Higgs Inflation as Nonlinear Sigma Model and Scalaron as its $σ$-meson
Creators: name: Ema, Yohei
name: Mukaida, Kyohei
name: van de Vis, Jorinde
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We point out that a model with scalar fields with a large nonminimal coupling to the Ricci scalar, such as Higgs inflation, can be regarded as a nonlinear sigma model (NLSM). With the inclusion of not only the scalar fields but also the conformal mode of the metric, our definition of the target space of the NLSM is invariant under the frame transformation. We show that the $σ$-meson that linearizes this NLSM to be a linear sigma model (LSM) corresponds to the scalaron, the degree of freedom associated to the $R^2$ term in the Jordan frame. We demonstrate that quantum corrections inevitably induce this $σ$-meson in the large-$N$ limit, thus providing a frame independent picture for the emergence of the scalaron. The resultant LSM only involves renormalizable interactions and hence its perturbative unitarity holds up to the Planck scale unless it hits a Landau pole, which is in agreement with the renormalizability of quadratic gravity.
description: 18 pages + appendices, 1 figures; v2: references added; v3: explanation clarified, published version; v4: one reference added
Singularities in scalar-tensor gravity
Creators: name: Faraoni, Valerio
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The analysis of certain singularities in scalar-tensor gravity contained in a recent paper is completed, and situations are pointed out in which these singularities cannot occur.
description: 6 pages, LaTeX
Quota of Four:the First Women Graduates of the Medical School (A)
Creators: name: Sims, Ronald H
Publisher: name: DigitalHub. Galter Health Sciences Library
Year: 2016
Subjects: subject: Galter Health Sciences Library
subject: Physicians, Women
subject: Schools, Medical
subject: Women physicians
subject: Medical education

description: One of a series of articles prepared for Galter Library's website on co-education in the medical school at Northwestern University. This article was posted during National Women's History Month in 2014, and honors the first four female Northwestern MD graduates following the initiation of co-education at the medical school in 1926. Features highlights about the lives and careers of: Verna Anne Christophel (1905-1973); Elizabeth Adrienne Sirmay (1899-1990); Edna May Ward (1906-1993); Vera Blanche Slagerman (1907-1994).
Pontogenessa Monro 1924
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Aphroditidae
Pontogenessa

description: Pontogenessa Monro, 1924
 (= Pontogenia fide Pettibone 1966a) obscura Monro, 1924: Macclesfield Bank, Paracel Islands, South China Sea. NHM AN02 1925.1.28.100- 105, ZSI 3381/1
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 12, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
Additional file 1 of Some data quality issues at ClinicalTrials.gov
Creators: name: Chaturvedi, Neha
name: Bagish Mehrotra
name: Kumari, Sangeeta
name: Saurabh Gupta
name: H. S. Subramanya
name: Saberwal, Gayatri
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: S1. Text: Further details of methodology. (DOC 62 kb)
Tri-Phase Reactive Battery Theory (TPRBT): A Framework for Interface-Driven, Pressure-Modulated Electrochemical Systems
Creators: name: Fernandes, Ricardo Miguel Machado
Publisher: name: Ricardo Miguel Machado Fernandes
Year: 2025
Subjects: battery
theory
multi-phase
interface chemistry
energy systems
tri-phase battery
novel battery design
LCID

description: This theoretical framework introduces a novel class of electrochemical systems structured around three interacting physical phases: two immiscible liquids with distinct redox potentials, and a non-flammable gas phase for pressure modulation and dielectric control. The Tri-Phase Reactive Battery Theory (TPRBT) departs from traditional solid-state battery architectures by emphasizing dynamic interface reactivity, phase-responsive energy transformation, and recursive feedback behavior. Grounded in known physical laws and constraints, and aligned with principles from the Law of Conserved Informational Dynamics (LCID), this model proposes a flexible, environmentally adaptive approach to energy storage. While untested experimentally, the theory is designed to provoke exploration and collaboration among electrochemists, materials scientists, and energy system designers seeking to innovate beyond the limitations of conventional battery paradigms.
Responsibilities of Newspaper and Yearbook Advisors in the Public Senior High Schools of Washington, D.C
Creators: name: Morris, Beunyce Raiford
Publisher: name: American University
Year: 2023

description: The publication of student newspapers and yearbooks is now traditional in the American educational system. These organs are produced primarily through the joint efforts of faculty advisers and students.This study was undertaken for the purpose of defining the role of the adviser in the production of newspapers and yearbooks. These questions frequently arise: Does the adviser produce the publication with the aid of a few gifted students, or do the students publish the organ with occasional advice from a member of the faculty? How free are newspapers to express student opinion? IS the language used that of the student or that of the administration?
Amplifying The Uncanny
Creators: name: Broad, Terence
name: Leymarie, Frederic Fol
name: Grierson, Mick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Deep neural networks have become remarkably good at producing realistic deepfakes, images of people that (to the untrained eye) are indistinguishable from real images. Deepfakes are produced by algorithms that learn to distinguish between real and fake images and are optimised to generate samples that the system deems realistic. This paper, and the resulting series of artworks Being Foiled explore the aesthetic outcome of inverting this process, instead optimising the system to generate images that it predicts as being fake. This maximises the unlikelihood of the data and in turn, amplifies the uncanny nature of these machine hallucinations.
Monmouth University Poll: Coronavirus April 2020 New Jersey
Creators: name: Monmouth University Polling Institute
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: New Jersey as a place to live (1); New Jersey Governor Phil Murphy job approval (1); New Jersey state legislature job approval (1); President Donald Trump job approval (1); New Jersey senators job approval (2); coronavirus (COVID-19) outbreak (5); government responses to coronavirus outbreak (6); New Jersey coronavirus outbreak rules (13); New Jersey coronavirus outbreak rules approval (13); New Jersey school closures (2); laid off work because of pandemic (1); daily stress levels during outbreak (1); life back to normal after coronavirus (1); New Jersey shore (4); voter likelihood (1); 2020 general election (4); legalization of marijuana (5); your town as a place to live (3); neighborhood safety (1); registered to vote (1).
Optical Flashes and Very Early Afterglows in Wind Environments
Creators: name: Wu, X. F.
name: Dai, Z. G.
name: Huang, Y. F.
name: Lu, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The interaction of a relativistic fireball with its ambient medium is described through two shocks: a reverse shock that propagates into the fireball, and a forward shock that propagates into the medium. The observed optical flash of GRB 990123 has been considered to be the emission from such a reverse shock. The observational properties of afterglows suggest that the progenitors of some GRBs may be massive stars and their surrounding media may be stellar winds. We here study very early afterglows from the reverse and forward shocks in winds. An optical flash mainly arises from the relativistic reverse shock while a radio flare is produced by the forward shock. The peak flux densities of optical flashes are larger than 1 Jy for typical parameters, if we do not take into account some appropriate dust obscuration along the line of sight. The radio flare always has a long lasting constant flux, which will not be covered up by interstellar scintillation. The non-detections of optical flashes brighter than about 9th magnitude may constrain the GRBs isotropic energies to be no more than a few $10^{52}$ ergs and wind intensities to be relatively weak.
description: 21 pages, 6 figures, accepted by MNRAS on March 7, 2003
Towards a theory of differential constraints of a hydrodynamic hierarchy
Creators: name: Alonso, L. Martínez
name: Shabat, A. B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We present a theory of compatible differential constraints of a hydrodynamic hierarchy of infinite-dimensional systems. It provides a convenient point of view for studying and formulating integrability properties and it reveals some hidden structures of the theory of integrable systems. Illustrative examples and new integrable models are exhibited.
description: Published by JNMP at http://www.sm.luth.se/math/JNMP/
Pontogenia Claparede 1868
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Aphroditidae
Pontogenia

description: Pontogenia Claparède, 1868 indica Grube, 1875: Bohol, Philippines; Singapore. MPW 361, ZMB 1048, 2103 lichaucoi Pillai, 1965: Hundred Islands, Philippines. RTS 13 mcintoshi Monro, 1924: Macclesfield Bank, Paracel Islands, South China Sea. NHM AN02 1925.1.28.94-99 (pro Palmyra aurifera sensu McIntosh, 1885) nuda Horst, 1917: Buton Strait. NML 1189 spinosa Horst, 1917: N Waigeu Island. NML 1190 villosa Horst, 1917: Beo, Karakelong Islands. NML 1191
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 12, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
Can we constrain the extragalactic magnetic field from very high energy observations of GRB 190114C?
Creators: name: Dzhatdoev, T. A.
name: Podlesnyi, E. I.
name: Vaiman, I. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Primary very high energy $γ$-rays from $γ$-ray bursts (GRBs) are partially absorbed on extragalactic background light (EBL) photons with subsequent formation of intergalactic electromagnetic cascades. Characteristics of the observable cascade $γ$-ray signal are sensitive to the strength and structure of the extragalactic magnetic field (EGMF). GRB 190114C was recently detected with the MAGIC imaging atmospheric Cherenkov telescopes, for the first time allowing to estimate the observable cascade intensity. We inquire whether any constraints on the EGMF strength and structure could be obtained from publicly-available $γ$-ray data on GRB 190114C. We present detailed calculations of the observable cascade signal for various EGMF configurations. We show that the sensitivity of the Fermi-LAT space $γ$-ray telescope is not sufficient to obtain such constraints on the EGMF parameters. However, next-generation space $γ$-ray observatories such as MAST would be able to detect pair echoes from GRBs similar to GRB 190114C for the EGMF strength below 10^{-17}--10^{-18} G.
description: 8 pages, 4 figures. Accepted for publication in Phys. Rev. D
Responsibilities of Newspaper and Yearbook Advisors in the Public Senior High Schools of Washington, D.C
Creators: name: Morris, Beunyce Raiford
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: The publication of student newspapers and yearbooks is now traditional in the American educational system. These organs are produced primarily through the joint efforts of faculty advisers and students.This study was undertaken for the purpose of defining the role of the adviser in the production of newspapers and yearbooks. These questions frequently arise: Does the adviser produce the publication with the aid of a few gifted students, or do the students publish the organ with occasional advice from a member of the faculty? How free are newspapers to express student opinion? IS the language used that of the student or that of the administration?
Colour changes in quasar light curves
Creators: name: Hawkins, M. R. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The study of quasar variability has long been seen as a way to understanding the structure of the central engine of active galactic nuclei, and as a means of verifying the morphology of the standard model. Much work has already been done on the statistical properties of light curves monitored in one colour, and it is now possible to use these observations to test predictions of theoretical models. The addition of a second colour can add enormously to the power of such tests, and put tight constraints on the nature of the variations. In this paper a yearly monitoring programme of several hundred quasars in blue and red passbands covering 21 years is presented. The statistics of colour changes are examined for a 15 year period of homogeneous data with Fourier power spectrum analysis, in a form suitable for testing against theoretical predictions. The results of the Fourier analysis show that there is more power in blue light on all timescales than in the red. Examination of the light curves shows several different modes of colour change. However, if allowance is made for the effects of the underlying host galaxy, the variations become close to achromatie. There are however structural differences between red and blue light curves which cannot be accounted for in this way, and various modes of variability including disc instability and microlensing are examined to provide explanations for these features.
description: 11 pages including 6 figures. Published in MNRAS
Determining the $Θ^+$ quantum numbers through the $K^+p\to π^+K^+n$ reaction
Creators: name: Hyodo, T.
name: Hosaka, A.
name: Oset, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the $K^+p\to π^+K^+n$ reaction with some kinematics suited to the production of the $Θ^+$ resonance recently observed. We show that, independently of the quantum numbers of the $Θ^+$, a resonance signal is always observed in the $K^+$ forward direction. In addition, we also show how a combined consideration of the strength at the peak, and the angular dependence of polarization observables can help determine the $Θ^+$ quantum numbers using the present reaction.
description: 21 pages, 8 figures, Version to appear in Phys. Lett. B
Towards a Deterministic Model of Planetary Formation I: a Desert in the Mass and Semi Major Axis Distributions of Extra Solar Planets
Creators: name: Ida, S.
name: Lin, D. N. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the accretion of cores of giant planets from planetesimals, gas accretion onto the cores, and their orbital migration. We adopt a working model for nascent protostellar disks with a wide variety of surface density distributions in order to explore the range of diversity among extra solar planetary systems. If some cores can acquire more mass than a critical value of several Earth masses during the persistence of the disk gas, they would be able to rapidly accrete gas and evolve into gas giant planets. The gas accretion process is initially regulated by the Kelvin-Helmholtz contraction of the planets' gas envelope. Based on the assumption that the exponential decay of the disk-gas mass occurs on the time scales $\sim 10^{6}-10^{7}$ years and that the disk mass distribution is comparable to those inferred from the observations of circumstellar disks of T Tauri stars, we carry out simulations to predict the distributions of masses and semi major axes of extra solar planets. Since planets' masses grow rapidly from $10 M_{\oplus}$ to $100 M_{\oplus}$, the gas giant planets rarely form with asymptotic masses in this intermediate range. Our model predicts a paucity of extra solar planets with mass in the range 10-$100 M_{\oplus}$ and semi major axis less than 3AU. We refer to this deficit as a ``planet desert''. The effect of migration is to sharpen the boundaries and to enhance the contrast of the planet desert. The mass and semi major axis distributions generated in our simulations for the gas giants are consistent with those of the known extra solar planets.
description: 55 pages, 12 figures
XMM-Newton Observations of NGC 507: Super-solar Metal Abundances in the Hot ISM
Creators: name: Kim, Dong-Woo
name: Fabbiano, Giuseppina
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the X-ray XMM-Newton observations of NGC 507, a dominant elliptical galaxy in a small group of galaxies, and report 'super-solar' metal abundances of both Fe and a-elements in the hot ISM of this galaxy. We find Z_Fe = 2-3 times solar inside the D25 ellipse of NGC 507. This is the highest Z_Fe reported so far for the hot halo of an elliptical galaxy; this high Iron abundance is fully consistent with the predictions of stellar evolution models, which include the yield of both type II and Ia supernovae. The spatially resolved, high quality XMM spectra provide enough statistics to formally require at least three emission components: two soft thermal components indicating a range of temperatures in the hot ISM, plus a harder component, consistent with the integrated output of low mass X-ray binaries (LMXBs). The abundance of a-elements (most accurately determined by Si) is also found to be super-solar. The a-elements to Fe abundance ratio is close to the solar ratio, suggesting that ~70% of the Iron mass in the hot ISM was originated from SNe Type Ia. The a-element to Fe abundance ratio remains constant out to at least 100 kpc, indicating that SNe Type II and Ia ejecta are well mixed in a scale much larger than the extent of the stellar body.
description: 29 pages, 6 figures, Accepted in ApJ (v613, Oct. 1, 2004); Minor revisions after referee's comments; A high-resolution pdf file available at http://hea-www.harvard.edu/~kim/pap/N507_XMM.pdf
Relatório de Aula Prática - Programação Web
Creators: name: Pereira Brandão, Vitor Hugo Fernando
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 330206
subject: Building science, technologies and systems
classificationCode: 461204
subject: Programming languages

description: Este relatório descreve o desenvolvimento de uma API REST para gerenciamento de usuários usando Spring Boot. O projeto implementa operações CRUD, organizando-se em camadas de entidade, repositório, serviço e controlador. A API resultante permite manipular registros de usuários de forma eficiente, demonstrando a eficácia do Spring Boot na criação de sistemas backend robustos e escaláveis.
FCVARmodel.m: A Matlab software package for estimation and testing in the fractionally cointegrated VAR model
Creators: name: ÃŸrregaard Nielsen, Morten
name: Morin, Lealand
name: ÃŸrregaard Nielsen, Morten
name: Morin, Lealand
Publisher: name: Unknown
Year: 2014
Subjects: subject: Financial Economics
subject: Institutional and Behavioral Economics
subject: cofractional process
subject: cointegration rank
subject: computer program
subject: fractional autoregressive model
subject: fractional co integration
subject: fractional unit root
subject: Matlab
subject: VAR model

description: This manual describes the usage of the accompanying freely available software pack- age for estimation and testing in the fractionally cointegrated vector autoregressive (VAR) model.
Analysis of Lackadaisical Quantum Walks
Creators: name: Høyer, Peter
name: Yu, Zhan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The lackadaisical quantum walk is a quantum analogue of the lazy random walk obtained by adding a self-loop to each vertex in the graph. We analytically prove that lackadaisical quantum walks can find a unique marked vertex on any regular locally arc-transitive graph with constant success probability quadratically faster than the hitting time. This result proves several speculations and numerical findings in previous work, including the conjectures that the lackadaisical quantum walk finds a unique marked vertex with constant success probability on the torus, cycle, Johnson graphs, and other classes of vertex-transitive graphs. Our proof establishes and uses a relationship between lackadaisical quantum walks and quantum interpolated walks for any locally arc-transitive graph.
description: 17 pages, 3 figures
Commuter & Resident Student Non-Participants for Move UBC
Creators: name: Parag, Akira
name: Parag, Nishtha
name: Parag, Harika
name: Okano, Hanae
Publisher: name: The University of British Columbia
Year: 2019

description: The Move UBC initiative to help students, staff, and faculty at the University of British Columbia (UBC) to become more active, has recently completed its third campaign. During the month of February, Move UBC hosts a variety of free and low-cost events on the UBC Vancouver and Okanagan campuses. In addition to increasing physical activity levels on campus, Move UBC aims to raise awareness about the health risks of a sedentary lifestyle, which include physical, mental, and emotional deficits (Allen, Walter, & Swann, 2019; Patterson et al., 2018; Zhai, Zhang, & Zhang, 2014). Considering the importance of the Move UBC initiative, it is necessary to examine the factors influencing lack of participation in Move UBC events. This project, Commuter & Resident Student Non-Participants for Move UBC, aimed to determine the interests and barriers faced by non-participant undergraduate commuter and resident students on the UBC Vancouver campus. Directly following the conclusion of Move UBC, commuter and resident students were surveyed to determine their preferred mode of advertising, their interests in terms of events, as well as their reasons for not participating in Move UBC. Results indicated that commuters were drawn to Move UBC events to be more active whereas residents were interested to be more social and to have fun. Responses further showed that students preferred social media as a means of receiving information about Move UBC. Students demonstrated interest in the campaign and suggested a need for advanced and detailed promotion of events, as well as more varied events. Overall, students were favourable to the Move UBC initiative and willing to provide recommendations for how to improve participation. Based on the results of this project, it is recommended that Move UBC begin advertising further in advance, providing more details on events and timings. Furthermore, Move UBC should increase its use of social media as a means of advertising and engaging students. Finally, students indicated a need for more varied events, suggesting that Move UBC diversify its event listings. Further evidence-based suggestions are provided within the report. These recommendations are provided in the hopes of increasing participation in the Move UBC campaign, an initiative that has significant positive health impacts on the university population. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
title: Reifegradanalyse im Kontext digitaler Transformation
title: Unterstützung digitaler Transformationsprojekte in Produktionsunternehmen anhand von Reifegradmodellen
titleType: Subtitle
Creators: name: Raos, Mathias
Publisher: name: FH Vorarlberg
Year: 2021
Subjects: subject: 650 Management

description: Mit dem Voranschreiten und der Weiterentwicklung der Informationstechnologie und Industrie 4.0 stehen Industrieunternehmen, speziell im Bereich der Fertigung und Produktion, vor der Herausforderung, ihre Prozesse zu digitalisieren und automatisieren. Durch die Digitalisierung werden Daten gesammelt, die zur Regelung der Prozesse und Unterstützung von Entscheidungen eingesetzt werden. Um die digitale Transformation erfolgreich umzusetzen und vor allem die Veränderung der Arbeitsabläufe im Unternehmen zu etablieren, braucht es gewissenhafte Vorbereitung. Es bietet sich im Vorfeld eines Projektes an, mittels Reifegradmodellen zur Digitalisierung, den aktuellen Status des Unternehmens zu erheben. Diese Masterarbeit setzt sich zum Ziel zu evaluieren, ob Reifegradmodelle geeignete Tools sind, um Hindernisse und Chancen von Digitalisierungsprojekten im Vorfeld zu erkennen und abzufangen. Um vorhandene Ressourcen zielgerichtet und verschwendungsfrei einzusetzen, müssen kritische Bereiche identifiziert werden, auf die der Fokus gelegt werden sollte. Zur Bearbeitung des Themas wurde folgende Forschungsfrage gestellt: Sind Reifegradmodelle geeignete Werkzeuge, um aktiv und präventiv Barrieren für digitale Transformationsprojekte zu identifizieren und vermeiden? Um die Forschungsfrage zu beantworten wurde eine systematische Literaturrecherche und -analyse durchgeführt. Dabei wurden bestehende Reifegradmodelle zur Digitalisierung untersucht, indem ihre Bewertungskriterien in einem Schema kategorisiert wurden. Durch die Kategorisierung wurde ersichtlich, welche Modelle für welchen Zweck einsetzbar sind, bzw. ob die wichtigen Bereiche abgedeckt werden. Ergebnis der Recherche sind sieben Reifegradmodelle, mit unterschiedlichen Herangehensweisen, die exemplarisch vorgestellt und analysiert werden.
The Impact of Commodity Price Volatility on Resource Intensive Economies
Creators: name: Keay, Ian
name: Keay, Ian
Publisher: name: Unknown
Year: 2010
Subjects: subject: Demand and Price Analysis
subject: Financial Economics
subject: Commodity Price Volatility
subject: resource based growth
subject: simulation modeling

description: Commodity price volatility is bad for macroeconomic performance. Virtually all empirical studies that document this negative relationship rely on the estimation of aggregate growth equations using cross-section evidence drawn from the post-1970 era. This paper uses a simulation model based on the structure of a dynamic renewable resource model of optimal extraction to determine why commodity price volatility affects investment decisions, production levels, profitability, and ultimately long run growth. The Canadian forestry sector is used as a case study to assess the relative strength of each of these effects. Simulation exercises reveal that commodity price volatility shocks significantly reduce resource firms' equity prices and their demand for reproducible and natural capital. As a result of these changes in the firms' external financing costs and investment incentives, extraction costs rise, output levels and profits fall, and real GDP per capita growth slows.
NGC 1883: a neglected intermediate-age open cluster located in the outskirts of the Galactic disk
Creators: name: Carraro, Giovanni
name: Baume, Gustavo
name: Villanova, Sandro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on $BVI$ CCD photometry of a field centered in the region of the open cluster NGC 1883 down to V=21. This cluster has never been studied insofar, and we provide for the first time estimates of its fundamental parameters, namely radial extent, age, distance and reddening. We find that the cluster has a radius of about 2.5 arcmin, and shows signatures of dynamical relaxation. NGC 1883 is located in the anti-center direction, and exhibits a reddening in the range E$(B-V)= 0.23-0.35$, depending on the metal abundance. It turns out to be of intermediate-age (1 billion years old), and quite distant for an open cluster. In fact it is located 4.8 kpc from the Sun, and more than 13 kpc from the Galactic center. This results makes NGC 1883 one of the most peripheral old open clusters, with important consequences for the trend of the metallicity with distance in the outer Galactic disk.
description: 5 pages, 6 eps figures, in press in MNRAS
Squeezing and entanglement in continous variable systems
Creators: name: Xia, Yun-Jie
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on total variance of a pair of Einstein-Podolsky-Rosen (EPR) type operators, the generalized EPR entangled states in continuous variable systems are defined. We show that such entangled states must correspond with two-mode squeezing states whether these states are Gaussian or not and whether they are pure or not. With help of the relation between the total variance and the entanglement, the degree of such entanglement is also defined. Through analyzing some specific cases, we see that this method is very convenient and easy in practical application. In addition, an entangled state with no squeezing is studied, which reveals that there certainly exist something unknown about entanglement in continuous variable systems.
description: 5 pages
The dynamics of the early universe in a model with radiation and a generalized Chaplygin gas
Creators: name: Monerat, G. A.
name: Santos, C. G. M.
name: Oliveira-Neto, G.
name: Silva, E. V. Corrêa
name: Filho, L. G. Ferreira
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The early universe is modeled through the quantization of a Friedmann-Robertson-Walker model with positive curvature of the spatial hypersurfaces. In this model, the universe is filled by two fluids: radiation and a generalized Chaplygin gas. The quantization of this model is made following the prescriptions due to J. A. Wheeler and B. DeWitt. Using the Schutz's formalism, the time notion is recovered and the Wheeler-DeWitt equation transforms into a time dependent Schrödinger equation, which rules the dynamics of the early universe, under the action of an effective potential $V_{eff}$. That potential, depends on three parameters. Depending on the values of these parameters, $V_{eff}$ may have two different shapes. $V_{eff}(a)$ may have the shape of a barrier or the shape of a well followed by a barrier. We solve, numerically, the appropriate time dependent Schrödinger equation and obtain the time evolution of an initial wave function, for both cases. These wave functions satisfy suitable boundary conditions. For both shapes of $V_{eff}$, we compute the tunneling probability, which is a function of the mean kinetic energy associated to the radiation energy $E_m$ and of the three parameters of the generalized Chaplygin gas: $α$, $A$ and $B$. The tunneling probabilities, for both shapes of $V_{eff}$, indicates that the universe should nucleate with the highest possible values of $E_m$, $α$, $A$ and $B$. Finally, we study the classical universe evolution after the wavefunction has tunneled $V_{eff}$. The calculations show that the universe may emerge from the Planck era in an inflationary phase.
description: In that new version, we removed a section and four figures. It has, now, 30 pages and 13 figures
Optical Light Curves of Supernovae
Creators: name: Leibundgut, Bruno
name: Suntzeff, Nicholas B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Photometry is the most easily acquired information about supernovae. The light curves constructed from regular imaging provide signatures not only for the energy input, the radiation escape, the local environment and the progenitor stars, but also for the intervening dust. They are the main tool for the use of supernovae as distance indicators through the determination of the luminosity. The light curve of SN 1987A still is the richest and longest observed example for a core-collapse supernova. Despite the peculiar nature of this object, as explosion of a blue supergiant, it displayed all the characteristics of Type II supernovae. The light curves of Type Ib/c supernovae are more homogeneous, but still display the signatures of explosions in massive stars, among them early interaction with their circumstellar material. Wrinkles in the near-uniform appearance of thermonuclear (Type Ia) supernovae have emerged during the past decade. Subtle differences have been observed especially at near-infrared wavelengths. Interestingly, the light curve shapes appear to correlate with a variety of other characteristics of these supernovae. The construction of bolometric light curves provides the most direct link to theoretical predictions and can yield sorely needed constraints for the models. First steps in this direction have been already made.
description: To be published in:"Supernovae and Gamma Ray Bursters", Lecture Notes in Physics (http://link.springer.de/series/lnpp)
Shaken not Stirred: Understanding and Preparing to Support Research Transparency through Publication Validation
Creators: name: Ringuette, Rebecca
Publisher: name: Zenodo
Year: 2024

description: As Heliophysics transitions to open science practices, we face a crisis where many important published results cannot be reproduced even by the authors themselves shortly after publication. Such a lack of research transparency prevents important progress across our field, including model validation efforts, event catalog creation, and machine learning and AI developments. This work will: (1) Define and present motivation for publication validation based on many studies of replication and reproducibility, (2) Outline the spectrum of open science possible for publications, ranging from the closed formats of previous generations to easily findable and completely executable work, and (3) Recommend a feasible minimum standard to require of publications to make validation possible and useful, and additional best practices to help publications be born transparent. Based on these considerations, a new more efficient infrastructure design will be proposed to support publication validation both in Heliophysics and across the sciences, which will require cloud technology for collaborative validation efforts. Iterations on the spectrum of tasks presented and the minimum standard and best practices proposed are expected to occur in an upcoming community workshop in the near future, with the goal of producing a public rubric for proposal and performance reviewers to better rank research proposals based on their open science activities and products.
Rate-dependent Stick-slips in Steady Shearing: Signature of Transition between Granular Solid and Fluid
Creators: name: Jih-Chiang
name: Tsai
name: Huang, Guan-Hao
name: Tsai, Cheng-En
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Despite extensive studies on either smooth granular-fluid flow or the solid-like deformation at the slow limit, the change between these two extremes remains largely unexplored. By systematically investigating the fluctuations of tightly packed grains under steady shearing, we identify a transition zone with prominent stick-slip avalanches. We establish a state diagram, and propose a new dimensionless shear rate based on the speed dependence of inter-particle friction and particle size. With fluid-immersed particles confined in a fixed volume and forced to "flow" at viscous numbers $J$ decades below reported values, we answer how a granular system can transition to the regime sustained by solid-to-solid friction that goes beyond existing paradigms based on suspension rheology.
Very smooth points of spaces of operators
Creators: name: Rao, T. S. S. R. K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper we study very smooth points of Banach spaces with special emphasis on spaces of operators. We show that when the space of compact operators is an $M$-ideal in the space of bounded operators, a very smooth operator $T$ attains its norm at a unique vector $x$ (up to a constant multiple) and $T(x)$ is a very smooth point of the range space. We show that if for every equivalent norm on a Banach space, the dual unit ball has a very smooth point then the space has the Radon--Nikodým property. We give an example of a smooth Banach space without any very smooth points.
description: 12 pages, no figures, no tables
Capitellethus Chamberlin 1919
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Capitellidae
Capitellethus

description: Capitellethus Chamberlin, 1919 branchiferus Gallardo, 1968: Nha Trang, Vietnam. LACM 319
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 13, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
Indonesia's Foreign Relations and the Netherlands New Guinea (West Irian) Issue
Creators: name: Biondo, Mauro A.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: The primary purpose of this paper is to acquaint the reader with Indonesia's foreign policy through an appreciation of her history and present day role in foreign affairs. The all important problem of Netherlands New Guinea has been subjected to heated and irrational discussion. As a result, proponents of colonialism, communism, and nationalism have obscured the original nature of the issue.
Evolution of the N=20 and 28 Shell Gaps and 2-particle-2-hole states in the FSU Interaction
Creators: name: Lubna, R. S.
name: Kravvaris, K.
name: Tripathi, S. L. Tabor. Vandana
name: Rubino, E.
name: Volya, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The FSU $spsdfp$ cross-shell interaction for the shell model was successfully fitted to a wide range of mostly intruder negative parity states of the $sd$ shell nuclei. This paper reports the application of the FSU interaction to systematically trace out the relative positions of the effective single-particle energies of the $0f_{7/2}$ and $1p_{3/2}$ orbitals, the evolution from normally ordered low-lying states to the "Island of Inversion" (IoI), and the behavior of a wide range of excited states with a $0f_{7/2}$ proton and neutron coupled to maximum spin of $7 \hbar$. Above a proton number of about 13 the $0f_{7/2}$ orbital lies below that of $1p_{3/2}$, which is considered normal ordering, but systematically at $Z = 10$ to $12$ the orbitals cross. The calculations reproduce well the 2p2h - 0p0h inversion in the configurations of nuclei inside the IoI, they reproduce the absolute binding energies and the transition to normal ordering as the proton number approaches that of the neutrons. The important role of $1p_{3/2}$ neutron pairs in the IoI is also demonstrated. The calculations account well for the energies of the fully aligned states with 0, 1, or 2 individual $sd$ nucleon aligned in spin with the aligned $π0f_{7/2}$ - $ν0f_{7/2}$ pair and reproduce well their systematic variation with $A$ and number of aligned $sd$ nucleons. The results presented in this paper give hope for the predictive power of the FSU interaction for more exotic nuclei to be explored in near future.
Indonesia's Foreign Relations and the Netherlands New Guinea (West Irian) Issue
Creators: name: Biondo, Mauro A.
Publisher: name: American University
Year: 2023

description: The primary purpose of this paper is to acquaint the reader with Indonesia's foreign policy through an appreciation of her history and present day role in foreign affairs. The all important problem of Netherlands New Guinea has been subjected to heated and irrational discussion. As a result, proponents of colonialism, communism, and nationalism have obscured the original nature of the issue.
On the dimensions of conformal repellers. Randomness and parameter dependency
Creators: name: Rugh, Hans Henrik
Publisher: name: arXiv
Year: 2004
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C45, 28A78, 60D05, 37H15

description: Bowen's formula relates the Hausdorff dimension of a conformal repeller to the zero of a `pressure' function. We present an elementary, self-contained proof which bypasses measure theory and the Thermodynamic Formalism to show that Bowen's formula holds for $C^1$ conformal repellers. We consider time-dependent conformal repellers obtained as invariant subsets for sequences of conformally expanding maps within a suitable class. We show that Bowen's formula generalizes to such a repeller and that if the sequence is picked at random then the Hausdorff dimension of the repeller almost surely agrees with its upper and lower Box dimensions and is given by a natural generalization of Bowen's formula. For a random uniformly hyperbolic Julia set on the Riemann sphere we show that if the family of maps and the probability law depend real-analytically on parameters then so does its almost sure Hausdorff dimension.
description: 45 pages, 5 figures
Dasybranchus Grube 1850
Creators: name: Salazar-Vallejo, Sergio I.
name: Carrera-Parra, Luis F.
name: Muir, Alexander I.
name: León-González, Jesús Angel De
name: Piotrowski, Christina
name: Sato, Masanori
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Capitellidae
Dasybranchus

description: Dasybranchus Grube, 1850 lumbricoides Grube, 1878: Bohol, Philippines. MPW 267 umbrinus Grube, 1878: Bohol, Philippines. MPW 268, ZMB 10655
description: Published as part of Salazar-Vallejo, Sergio I., Carrera-Parra, Luis F., Muir, Alexander I., León-González, Jesús Angel De, Piotrowski, Christina & Sato, Masanori, 2014, Polychaete species (Annelida) described from the Philippine and China Seas, pp. 1-68 in Zootaxa 3842 (1) on page 13, DOI: 10.11646/zootaxa.3842.1.1, http://zenodo.org/record/4928482
A Stochastic Game Framework for Efficient Energy Management in Microgrid Networks
Creators: name: Nayak, Shravan
name: Ekbote, Chanakya Ajit
name: Chauhan, Annanya Pratap Singh
name: Diddigi, Raghuram Bharadwaj
name: Ray, Prishita
name: Sikdar, Abhinava
name: Danda, Sai Koti Reddy
name: Bhatnagar, Shalabh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We consider the problem of energy management in microgrid networks. A microgrid is capable of generating a limited amount of energy from a renewable resource and is responsible for handling the demands of its dedicated customers. Owing to the variable nature of renewable generation and the demands of the customers, it becomes imperative that each microgrid optimally manages its energy. This involves intelligently scheduling the demands at the customer side, selling (when there is a surplus) and buying (when there is a deficit) the power from its neighboring microgrids depending on its current and future needs. Typically, the transaction of power among the microgrids happens at a pre-decided price by the central grid. In this work, we formulate the problems of demand and battery scheduling, energy trading and dynamic pricing (where we allow the microgrids to decide the price of the transaction depending on their current configuration of demand and renewable energy) in the framework of stochastic games. Subsequently, we propose a novel approach that makes use of independent learners Deep Q-learning algorithm to solve this problem. Through extensive empirical evaluation, we show that our proposed framework is more beneficial to the majority of the microgrids and we provide a detailed analysis of the results.
Transcription des brouillons de la danse de Salomé f653v
Creators: name: CÉRÉdI
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017

description: created: n.d.