cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enterprise Architecture in Higher Education: Processes, Principles, Challenges, Success Factors and Agility
Creators: name: Alghamdi, Aliaa
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Enterprise Architecture
Higher Education
Higher EducationInstitutions
Agility
Success Factors
Principles
EA Framework
Tool
Model

description: There has been growing interest in the use of Enterprise Architecture (EA) in the public sector, including in higher education (HE) institutions. Many HE institutions have adopted EA to help align their vision, objectives, and needs with their IT strategy and objectives, to support decision-making and to improve business processes. They have used specific tools, models and EA frameworks to simplify the adoption and development of EA. The main goal of this research is to answer the following question: How is EA being used in HE institutions and what lessons can be learned that will help improve EA in HE? To achieve our goal, we first conducted literature reviews (Chapter 2 and Chapter 3). These showed that there is a lack of studies of this topic, with gaps in knowledge about the longer-term evolution of EA implementation, tools and frameworks used, challenges and success factors of EA adoption, and the adoption of the agile EA. Then we followed an exploratory sequential mixed method process. We first used grounded analysis by conducting interviews with 21 higher education enterprise architects (HEEAs) in 6 countries. We analyzed the interviews and identified the main themes and categories. From these, we developed a survey and received responses from 115 HEEAs in 29 countries. Our key contributions are to present a descriptive analysis of EA in HE institutions and to provide a set of recommendations and lessons learned based on our findings. Some observations were these: Key motivations and objectives for HEEAs are to facilitate the alignment of projects with the university’s goals, to align business and IT sectors, to reduce duplication, and to enable digital transformation and automation. HEEAs do the vast majority of their modelling using generic tools like spreadsheets, with ease of use, cost-effectiveness, and collaboration being the most-needed tool attributes. Keeping models up to date and the lack of automatic population of data are key tool challenges. TOGAF is the dominant framework, but Gartner and CAUDIT approaches also have significant influence. Critical challenges include resistance to change and finding ways to support the university’s mission and goals. A key practice to follow is enterprise thinking. Most respondents indicated that their EA process was moderately agile.
title:  Fonti locali di vulnerabilità al cambiamento climatico e ai conflitti armati in Africa orientale
Creators: name: Paglialunga, Elena
name: Cappelli ,  Federica
name: Marin , Giovanni
name: D’Angeli,  Mariagrazia
name: Costantini ,  Valeria
Publisher: name: RomaTrE-Press
Year: 2023

description: Our empirical work sheds new light on the climate-conflict nexus by investigating the vulnerability factors which explain why some locations are more likely to engage in armed conflicts than others in the presence of a similar level of exposure to climatic changes. In particular, we focus our analysis on the concept of vulnerability to both climate change and armed conflicts and, accordingly, on the identification of a specific set of factors that enhance vulnerability of some shares of the population at the local level. We employ a Spatial Autoregressive Model to capture the spatial and context-specific dimension of vulnerability factors in driving the climate-conflict nexus in East Africa at a high-resolution geographical level (about 25 km). Results from our analysis provide some interesting insights: first, we find that climate change does not increase conflict risk per sé, but only in the presence of preexisting vulnerabilities. Second, in line with the literature on climate change vulnerability, we find that socioeconomic factors play a key role in the climate-conflict nexus. In particular, vulnerability is enhanced whenever power is not distributed in such a way as to ensure an equitable distribution of resources.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
The study of beef cattle production data of kalasin farmers and effect of feeding on beef cattle release
Creators: name: Thitima Norrapoke
name: Tanitpan Phongchongmit
name: Nopparat Phakachoed
name: Thipsuda Boonmatan
name: Anusorn Cherdthong
Publisher: name: Faculty of Agriculture
Year: 2019
Subjects: fermented cassava pulp, grazing cattle, beef cattle

description: Khon Kaen Agriculture Journal, 47, 3, 587-594
Select examples of novelty and mechanisms that may lead to novelty from Evolutionary novelty in communication between the sexes
Creators: name: Broder, E. Dale
name: Elias, Damian O.
name: Rodríguez, Rafael L.
name: Rosenthal, Gil G.
name: Seymoure, Brett M.
name: Tinghitella, Robin M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Supplementary Table 1: Select examples of novelty in mating communication as well as examples of mechanisms that may lead to novelty (noted as “NA (mechanism)” in the modality column). These examples and mechanisms are referenced in the manuscript.
Discovery of Pulsations and a Possible Spectral Feature in the X-ray Emission from Rotating Radio Transient J1819-1458
Creators: name: McLaughlin, M. A.
name: Rea, N.
name: Gaensler, B. M.
name: Chatterjee, S.
name: Camilo, F.
name: Kramer, M.
name: Lorimer, D. R.
name: Lyne, A. G.
name: Israel, G. L.
name: Possenti, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: PSR J1819-1458 is a rotating radio transient (RRAT) source with an inferred surface dipole magnetic field strength of 5e13 G and a 4.26-s spin period. We present XMM-Newton observations of the X-ray counterpart of this source, CXOU J181939.1-145804, in which we identify pulsations and a possible spectral feature. The X-ray pulsations are at the period predicted by the radio ephemeris, providing an unambiguous identification with the radio source and confirmation of its neutron star nature. The X-ray pulse has a 0.3-5 keV pulsed fraction of 34% and is aligned with the expected phase of the radio pulse. The X-ray spectrum is fit well by an absorbed blackbody with kT = 0.14 keV with the addition of an absorption feature at 1 keV, with total absorbed flux of 1.5e-13 ergs/cm^2/s (0.3-5 keV). This absorption feature is well modeled by a Gaussian or resonant cyclotron scattering model, but its significance is dependent on the choice of continuum model. We find no evidence for any X-ray bursts or aperiodic variability on timescales of 6 ms to the duration of the observation and can place the most stringent limit to date of < 3e-9 ergs/cm^2/s on the absorbed 0.3-5 keV flux of any bursts.
description: 5 figures, accepted by ApJ
DiagViB-6: A Diagnostic Benchmark Suite for Vision Models in the Presence of Shortcut and Generalization Opportunities
Creators: name: Eulig, Elias
name: Saranrittichai, Piyapat
name: Mummadi, Chaithanya Kumar
name: Rambach, Kilian
name: Beluch, William
name: Shi, Xiahan
name: Fischer, Volker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Common deep neural networks (DNNs) for image classification have been shown to rely on shortcut opportunities (SO) in the form of predictive and easy-to-represent visual factors. This is known as shortcut learning and leads to impaired generalization. In this work, we show that common DNNs also suffer from shortcut learning when predicting only basic visual object factors of variation (FoV) such as shape, color, or texture. We argue that besides shortcut opportunities, generalization opportunities (GO) are also an inherent part of real-world vision data and arise from partial independence between predicted classes and FoVs. We also argue that it is necessary for DNNs to exploit GO to overcome shortcut learning. Our core contribution is to introduce the Diagnostic Vision Benchmark suite DiagViB-6, which includes datasets and metrics to study a network's shortcut vulnerability and generalization capability for six independent FoV. In particular, DiagViB-6 allows controlling the type and degree of SO and GO in a dataset. We benchmark a wide range of popular vision architectures and show that they can exploit GO only to a limited extent.
description: Accepted for publication at IEEE International Conference on Computer Vision (ICCV) 2021; updated affiliations & corrected typo
Periodic orbits in the logarithmic potential
Creators: name: Pucacco, Giuseppe
name: Boccaletti, Dino
name: Belmonte, Cinzia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Analytic methods to investigate periodic orbits in galactic potentials. To evaluate the quality of the approximation of periodic orbits in the logarithmic potential constructed using perturbation theory based on Hamiltonian normal forms. The solutions of the equations of motion corresponding to periodic orbits are obtained as series expansions computed by inverting the normalizing canonical transformation. To improve the convergence of the series a resummation based on a continued fraction may be performed. This method is analogous to that looking for approximate rational solutions (Prendergast method). It is shown that with a normal form truncated at the lowest order incorporating the relevant resonance it is possible to construct quite accurate solutions both for normal modes and periodic orbits in general position.
description: 10 pages, 9 figures, accepted for publication on Astronomy and Astrophysics
Planetary embryos and planetesimals residing in thin debris disks
Creators: name: Quillen, Alice C.
name: Morbidelli, Alessandro
name: Moore, Alex
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider constraints on the planetesimal population residing in the disks of AU Microscopii, Beta Pictoris and Fomalhaut taking into account their observed thicknesses and normal disk opacities. We estimate that bodies of radius 5, 180 and 70 km are responsible for initiating the collisional cascade accounting for the dust production for AU-Mic, Beta-Pic and Fomalhaut's disks, respectively, at break radii from the star where their surface brightness profiles change slope. Larger bodies, of radius 1000km and with surface density of order 0.01 g/cm^2, are required to explain the thickness of these disks assuming that they are heated by gravitational stirring. A comparison between the densities of the two sizes suggests the size distribution in the largest bodies is flatter than that observed in the Kuiper belt. AU Mic's disk requires the shallowest size distribution for bodies with radius greater than 10km suggesting that the disk contains planetary embryos experiencing a stage of runaway growth.
description: submitted to MNRAS
Dpes massless QCD have vacuum energy?
Creators: name: Holdom, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is widely thought that this question has a positive answer, but we argue that the support for this belief from both experiment and theory is weak or nonexistent. We then list some of the ramifications of a negative answer.
description: 8 pages, no figures, version to appear in NJP
The structure and chemistry of the massive shell around AFGL 2343: 29SiO and HCN as tracers of high-excitation regions
Creators: name: Quintana-Lacaci, G.
name: Bujarrabal, V.
name: Castro-Carrizo, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The yellow hypergiant stars (YHGs) are very massive objects that are expected to pass through periods of intense mass loss during their evolution. Despite of this, massive circumstellar envelopes have been found only in two of them, IRC+10420 and AFGL 2343. The envelopes around these objects and the processes that form them are poorly known. We aim to study the structure, dynamics and chemistry of the envelope around AFGL 2343. We have obtained interferometric maps of the rotational lines 29SiO J= 2-1, HCN J= 1-0 and SO J(K)= 2(2)-1(1) towards AFGL 2343. We have used an LVG excitation model to analyze the new observations and some previously published line profiles of AFGL 2343. The analysis of the observational data and the fitting results show the presence of a thin, hot and dense component within the previously identified CO shell. This component can be associated with recently shocked gas, but it could also be due to a phase of extremely copious mass loss. We suggest that this shell is the responsible for the whole 29SiO emission and significantly contributes to the HCN emission. The presence of such a dense shell rich in SiO can be related with that previously found for IRC+10420, which was also suggested to result from a shock. This may be a common feature in the evolution of these stars, as a consequence of the episodic mass loss periods that they pass during their evolution. We present new results for the mass loss pattern, the total mass of the circumstellar envelope and the molecular abundances of some species in AFGL 2343.
description: 9 pages, 9 figures
Heavy-quark pair production at two loops in QCD
Creators: name: Moch, S.
name: Uwer, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present updated predictions for the total cross section of top-quark pair production at Tevatron and LHC. For the LHC we also provide results at sqrt(s) = 10 TeV, in view of the anticipated run in 2008 and quote numbers for the production of new heavy-quark pairs with mass in the range 0.5 - 2 TeV. Our two-loop results incorporate all logarithmically enhanced terms near threshold including Coulomb corrections as well as the exact dependence on the renormalization and factorization scale through next-to-next-to-leading order in QCD.
description: 6 pages, LaTeX, 2 figures. To appear in the proceedings of `Loops and Legs in Quantum Field Theory', April 2008, Sondershausen (Germany) and (shortened) DIS 2008, London, April 2008
Lepton Flavour Violation in Unparticle Physics
Creators: name: Aliev, T. M.
name: Cornell, A. S.
name: Gaur, Naveen
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently H. Georgi has introduced an unparticle $\unpart$ in order to describe the low energy physics of a nontrivial scale invariant sector of an effective theory. In this work we have explored the phenomenology of an unparticle using the lepton flavour violating decay $μ^{-}\to e^{-} e^{+} e^{-}$, and found that the branching ratio of this decay is strongly dependent on the scaling dimension.
description: 7 pages, 3 figures; typographical errors corrected and references added in version 2
Select examples of novelty and mechanisms that may lead to novelty from Evolutionary novelty in communication between the sexes
Creators: name: Broder, E. Dale
name: Elias, Damian O.
name: Rodríguez, Rafael L.
name: Rosenthal, Gil G.
name: Seymoure, Brett
name: Tinghitella, Robin M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Supplementary Table 1: Select examples of novelty in mating communication as well as examples of mechanisms that may lead to novelty (noted as “NA (mechanism)” in the modality column). These examples and mechanisms are referenced in the manuscript.
Die Qualitätskriterien von Lehrkräften für frei verfügbare Lehrmittel aus dem Internet. Eine qualitative Befragung mittels Lauten Denkens
Creators: name: Tenhagen, Christina
Publisher: name: RWTH Aachen University
Year: 2019

description: Masterarbeit, RWTH Aachen University, 2019; Masterarbeit, RWTH Aachen University, 2019
Quaternion CR-submanifolds of a Locally Conformal Quaternion Kaehler Manifold
Creators: name: Sahin, Bayram
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 53C42

description: The purpose of the present paper is to study the differential geometric properties of a quaternion CR-submanifold in a locally conformal quaternion Kaehler manifold.
description: 10 pages
title:  Modelli Latent Markov per dati longitudinali: utilizzo in ambito econometrico e possibili estensioni
Creators: name: Dotto  ,  Francesco
Publisher: name: RomaTrE-Press
Year: 2023

description: Our contribution is focused on Latent Markov Models (LM) and some empirical applications in the econometrics context. In particular, we introduce the mathematical and statistical basic notions needed for both interpreting the output of a LM model and understanding the role of the parameters of the model. Furthermore, we present the issues that may arise whenever covariates (discrete or continuous) are inserted within the model. Finally, we present an empirical econometric application tailored at facing the problem of estimating material deprivation.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
The origin of bulges and discs in the CALIFA survey: I. Morphological evolution
Creators: name: Mendez-Abreu, J.
name: de Lorenzo-Caceres, A.
name: Sanchez, S. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This series of papers aims at understanding the formation and evolution of non-barred disc galaxies. We use the new spectro-photometric decomposition code, C2D, to separate the spectral information of bulges and discs of a statistically representative sample of galaxies from the CALIFA survey. Then, we study their stellar population properties analising the structure-independent datacubes with the Pipe3D algorithm. We find a correlation between the bulge-to-total ($B/T$) luminosity (and mass) ratio and galaxy stellar mass. The $B/T$ mass ratio has only a mild evolution with redshift, but the bulge-to-disc ($B/D$) mass ratio shows a clear increase of the disc component since redshift $z < 1$ for massive galaxies. The mass-size relation for both bulges and discs describes an upturn at high galaxy stellar masses (log{(M_{\star}/M_{\sun})} > 10.5). The relation holds for bulges but not for discs when using their individual stellar masses. We find a negligible evolution of the mass-size relation for both the most massive (log{(M_{\star \rm ,b,d}/M_{\sun})} > 10) bulges and discs. For lower masses, discs show a larger variation than bulges. We also find a correlation between the Sérsic index of bulges and both galaxy and bulge stellar mass, which does not hold for the disc mass. Our results support an inside-out formation of nearby non-barred galaxies, and they suggest that i) bulges formed early-on and ii) they have not evolved much through cosmic time. However, we find that the early properties of bulges drive the future evolution of the galaxy as a whole, and particularly the properties of the discs that eventually form around them.
description: 16 pages, 11 figures. Accepted for publication in MNRAS
Political Leadership in Papua New Guinea: Three Women Parliamentarians Defeated in the 2017 Election: Part One
Creators: name: Yangin, Russel
Publisher: name: Canberra, ACT: Dept. of Pacific Affairs, Research School of Pacific and Asian Studies, The Australian National University
Year: 2021

description: The three women parliamentarians who were elected in the 2012 Papua New Guinea (PNG) election failed to win re-election in the 2017 general election. Their electoral defeats only deepen the concern for gender representation in parliament. However, an analysis of their short-lived political careers reveals that their conduct in the 9th parliament is consistent with the demands and expectations made of the Papua New Guinean politician. In PNG there are two arenas in politics a member of parliament (MP) must contend with to ensure survival: the first, naturally, is electoral victory; the second is the politics of electoral development — when elected, an MP is expected to successfully deliver development to their electorate.
Political Leadership in Papua New Guinea: Three Women Parliamentarians Defeated in the 2017 Election: Part Two
Creators: name: Yangin, Russel
Publisher: name: Canberra, ACT: Dept. of Pacific Affairs, Research School of Pacific and Asian Studies, The Australian National University
Year: 2021

description: This is the second In Brief in a two-part series. Part 1 detailed the circumstances surrounding the unsuccessful re-election of three women members of parliament (MPs) in Papua New Guinea (PNG). In this second part I analyse the case studies and reach three findings: the women’s attempts to consolidate power in their province during their first term were unsuccessful; the importance of provincial assemblies in national politics should not be underestimated; and the rules of big-man1 politics seem likely to apply to women MPs.
A multiconfigurational pair-density functional theory approach to molecular junctions
Creators: name: Sand, Andrew M.
name: Malme, Justin T.
name: Hoy, Erik P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Due to their small size and unique properties, single-molecule electronics have long seen research interest from experimentalists and theoreticians alike. From a theoretical standpoint, modeling these systems using electronic structure theory can be difficult due to the importance of electron correlation in the determination of molecular properties, and this electron correlation can be computationally expensive to consider, particularly multiconfigurational correlation energy. In this work, we develop a new approach for the study of single-molecule electronic systems, denoted NEGF-MCPDFT, which combines multiconfiguration pair-density functional theory (MC-PDFT) with the non-equilibrium Green's function formalism (NEGF). The use of MC-PDFT with NEGF allows for the efficient inclusion of both static and dynamic electron correlation in the description of the junction's electronic structure. CASSCF wave functions are used as references in the MC-PDFT calculation, and like with any active space method, effort must be made to determine the proper orbital character to include in the active space. We perform conductance and transmission calculations on a series of alkanes (predominantly single-configurational character) and benzyne (multiconfigurational character), exploring the role that active space selection has on the computed results. For the alkane junctions explored (where dynamic electron correlation dominates), the MCPDFT-NEGF results agree well with DFT-NEGF results. For the benzyne junction (which has significant static correlation), we see clear differences in the MCPDFT-NEGF and DFT-NEGF results, and evidence that NEGF-MCPDFT is capturing additional electron correlation effects beyond those provided by the PBE functional.
All you ever wanted to know about optical long baseline stellar interferometry, but were too shy to ask your adviser
Creators: name: Millour, Florentin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I try to present a small view of the properties and issues related to astronomical interferometry observations. I recall a bit of history of the technique, give some basic assessments to the principle of interferometry, and finally, describe physical processes and limitations that affect optical long baseline interferometry and which are, in general, very useful for everyday work. Therefore, this text is not intended to perform strong demonstrations and show accurate results, but rather to transmit the general "feeling" one needs to have to not be destabilised by the first contact to real world interferometry.
title:  Potere contrattuale dei lavoratori e inflazione: un’analisi empirica
Creators: name: Levrero, Enrico Sergio
name: Romaniello, Davide
name: Fontanari, Claudia
Publisher: name: RomaTrE-Press
Year: 2023

description: The purpose of this study is to create a synthetic measure of workers’ bargainning power and analyze how it relates to inflation in the US economy. We first identify the variables influencing workers’ bargaining power by referring to various categories of variables, including labor market indicators, institutional indicators (such as collective bargaining coverage and union density), and economic characteristics (such as the degree of capital mobility and the proportion of employment by sector). The indicators are then evaluated using Principal Component Analysis (PCA), and weights are determined to combine the individual indicators into a composite index. In a subsequent stage, we estimate the effect of our Bargaining index on inflation between the 1968 and the 2018. Thus, the composite index serves two purposes: it reveals the degree to which shifts in the labor market over the past few decades have reduced employees’ negotiating strength and it can be used to examine how changes in the wage negotiation system have an impact on inflation.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
Cooper-pair propagation and superconducting correlations in graphene
Creators: name: Gonzalez, J.
name: Perfetto, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the Cooper-pair propagation and the proximity effect in graphene under conditions in which the distance L between superconducting electrodes is much larger than the width W of the contacts. In the case of undoped graphene, supercurrents may exist with a spatial decay proportional to W^2/L^3. This changes upon doping into a 1/L^2 behavior, opening the possibility to observe a supercurrent over length scales above 1 micron at suitable doping levels. We also show that there is in general a crossover temperature T ~ v_F/k_B L that marks the onset of the strong decay of the supercurrent, and that corresponds to the scale below which the Cooper pairs are not disrupted by thermal effects during their propagation.
description: 5 pages, 2 figures; corrected discussion
title:  Scelta delle tecniche e mercato dei titoli in un modello stazionario con generazioni sovrapposte
Creators: name: M. Fratini  ,  Saverio
Publisher: name: RomaTrE-Press
Year: 2023

description: The paper deals with an overlapping generation model with production in which firms issue securities in order to finance the outlay for the costs of production. We assume there are many different commodities, and each of them can be produced by many different methods, forming alternative techniques. Since we focus on stationary conditions, because of the non-substitution theorem, once an interest rate is given, the technique in use and the price system are determined accordingly. Since re-switching and reverse capital deepening are possible in the model we consider, then higher interest rate levels can be associated with the use of technique with a greater net product per worker – namely less labour-intensive techniques. The main result of the paper concerns the possibility of reverse capital deepening as an equilibrium phenomenon. In the event of multiple equilibria, equilibria with a higher interest rate can be associated with a greater net output per unit of labour.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
An exactly solvable model for anyons with non-Abelian flux
Creators: name: Klajn, Bruno
name: Domazet, Silvije
name: Jukić, Dario
name: Buljan, Hrvoje
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an exactly solvable model for synthetic anyons carrying non-Abelian flux. The model corresponds to a two-dimensional electron gas in a magnetic field with a specific spin interaction term, which allows only fully aligned spin states in the ground state; the ground state subspace is thus two-fold degenerate. This system is perturbed with identical solenoids carrying a non-Abelian gauge potential. We explore dynamics of the ground state as these solenoids are adiabatically braided and show they behave as anyons with a non-Abelian flux. Such a system represents a middle ground between the ordinary Abelian anyons and the fully non-Abelian anyons.
description: 6 pages, 2 figures
A threshold-improved narrow-width approximation for BSM physics
Creators: name: Kauer, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A modified narrow-width approximation that allows for O(Gamma/M)-accurate predictions for resonant particle decay with similar intermediate masses is proposed and applied to MSSM processes to demonstrate its importance for searches for particle physics beyond the Standard Model.
description: 10 pages, 5 figures, version to appear in JHEP
The Ancient Colors of Mural Paintingwan Chapel: Re-Imaging of Faith in the Bhuddhaisa
Creators: name: Pichai Thutongkinanon
Publisher: name: Faculty of Fine and Applied Arts, Chulalongkorn University
Year: 2011
Subjects: Ancient Colour, Mural Painting, Bhuddhaisawan Chapel, Early Ratanakosin Art Period

description: -, 3, Journal of Urban Culture Research
To be a New Laborer, or Not: Dagongren as an Identity-in-the-Making
Creators: name: Fang, Zhilan
Publisher: name: University of Chicago
Year: 2021
Subjects: subject: labor
subject: meme
subject: dagongren
subject: language ideology
subject: China

description: Emerging as an Internet meme, the word dagongren, literally meaning “laborer,” has recently become popular across various online platforms in China. Coined by a local security guard in September 2020, it has been taken up by the young educated white-collar workers for self-identification in work-related topics. Based mainly on the short videos on Douyu platform and the posts in the online group “Dagongren Gathering Place” on Douban platform, this research follows the circulating trajectory of the meme and unpacks the language ideologies underlying the changes of meanings of this word. While previous studies on the meme culture in China primarily situate these discourses under the binary liberating/reifying framework, this study instead argues that dagongren signals neither a united resistance nor an outright passivity towards the status quo. Uncertain and ambiguous as it is, it constitutes a “floating signifier” through which young educated white-collar workers can foster an identity-in-the-making in the face of the “loss of the ideal self.”
A fully data-driven algorithm for accurate shear estimation
Creators: name: Hoekstra, Henk
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Weak lensing by large-scale structure is a powerful probe of cosmology if the apparent alignments in the shapes of distant galaxies can be accurately measured. We study the performance of a fully data-driven approach, based on MetaDetection, focusing on the more realistic case of observations with an anisotropic PSF. Under the assumption that PSF anisotropy is the only source of additive shear bias, we show how unbiased shear estimates can be obtained from the observed data alone. To do so, we exploit the finding that the multiplicative shear bias obtained with MetaDetection is nearly insensitive to the PSF ellipticity. In practice, this assumption can be validated by comparing the empirical corrections obtained from observations to those from simulated data. We show that our data-driven approach meets the stringent requirements for upcoming space and ground-based surveys, although further optimisation is possible.
description: 11 pages, accepted for publication in Astronomy and Astrophysics
An old Method of Jacobi to find Lagrangians
Creators: name: Nucci, M. C.
name: Leach, P. G. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In a recent paper by Ibragimov [N. H. Ibragimov, Invariant Lagrangians and a new method of integration of nonlinear equations, J. Math. Anal. Appl. 304 (2005) 212--235] a method was presented in order to find Lagrangians of certain second-order ordinary differential equations admitting a two-dimensional Lie symmetry algebra. We present a method devised by Jacobi which enables to derive (many) Lagrangians of any second-order differential equation. The method is based on the search of the Jacobi Last Multipliers of the equations. We exemplify the simplicity and elegance of Jacobi's method by applying it to the same two equations as did Ibragimov. We show that the Lagrangians obtained by Ibragimov are particular cases of some of the many Lagrangians that can be obtained by Jacobi's method.
description: 12 pages
Keeping It Alive - Mapping Bangkok Diverse Living Culture
Creators: name: Bussakorn Binson
name: Pattara Komkam
name: Pornprapit Phaosavadi
name: Kumkom Pornprasit
Publisher: name: Faculty of Fine and Applied Arts, Chulalongkorn University
Year: 2011
Subjects: Bangkok Culture, Living Tradition, Thailand Urban Culture, Performing Art, Local Culture, Thai Arts and Crafts

description: -, 3, Journal of Urban Culture Research
Metal contacts in carbon nanotube field effect transistors: Beyond the Schottky barrier paradigm
Creators: name: Palacios, J. J.
name: Tarakeshwar, P.
name: Kim, Dae M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The observed performances of carbon nanotube field effect transistors are examined using first-principles quantum transport calculations. We focus on the nature and role of the electrical contact of Au and Pd electrodes to open-ended semiconducting nanotubes, allowing the chemical contact at the surface to fully develop through large-scale relaxation of the contacting atomic configuration. We present the first direct numerical evidence of Pd contacts exhibiting perfect transparency for hole injection as opposed to that of Au contacts. Their respective Schottky barrier heights, on the other hand, turn out to be fairly similar for realistic contact models. These findings are in general agreement with experimental data reported to date, and show that a Schottky contact is not merely a passive ohmic contact but actively influences the device I-V behavior.
description: Submitted to PRL
Magnetic connections across the chromosphere-corona transition region
Creators: name: Judge, Philip G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The plasma contributing to emission from the Sun between the cool chromosphere ($\le 10^4$K) and hot corona ($\ge 10^6$K) has been subjected to many different interpretations. Here we look at the magnetic structure of this transition region (TR) plasma, based upon the implications of CLASP2 data of an active region recently published by Ishikawa et al., and earlier IRIS and SDO data of quiet regions. Ishikawa et al. found that large areas of sunspot plages are magnetically unipolar as measured in the cores of \ion{Mg}{2} resonance lines, formed in the lower transition region under low plasma-$β$ conditions. Here we show that IRIS images in the line cores have fibrils which well aligned with the overlying coronal loop segments seen in the 171 Å channel of SDO. When the TR emission in active regions arise from plasma magnetically and thermally connected to the corona, then the line cores can provide the first credible magnetic boundary conditions for force-free calculations extended to the corona. We also re-examine IRIS images of dynamic TR cool loops previously reported as a major contributor to transition region emission from the quiet Sun. Dynamic cool loops contribute only a small fraction of the total TR emission from the quiet Sun.
description: 10 Pages, 5 figures, 1 table
Small-Angle CMB Temperature Anisotropies Induced by Cosmic Strings
Creators: name: Fraisse, Aurélien A.
name: Ringeval, Christophe
name: Spergel, David N.
name: Bouchet, François R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use Nambu-Goto numerical simulations to compute the cosmic microwave background (CMB) temperature anisotropies induced at arcminute angular scales by a network of cosmic strings in a Friedmann-Lemaitre-Robertson-Walker (FLRW) expanding universe. We generate 84 statistically independent maps on a 7.2 degree field of view, which we use to derive basic statistical estimators such as the one-point distribution and two-point correlation functions. At high multipoles, the mean angular power spectrum of string-induced CMB temperature anisotropies can be described by a power law slowly decaying as \ell^{-p}, with p=0.889 (+0.001,-0.090) (including only systematic errors). Such a behavior suggests that a nonvanishing string contribution to the overall CMB anisotropies may become the dominant source of fluctuations at small angular scales. We therefore discuss how well the temperature gradient magnitude operator can trace strings in the context of a typical arcminute diffraction-limited experiment. Including both the thermal and nonlinear kinetic Sunyaev-Zel'dovich effects, the Ostriker-Vishniac effect, and the currently favored adiabatic primary anisotropies, we find that, on such a map, strings should be ``eye visible,'' with at least of order ten distinctive string features observable on a 7.2 degree gradient map, for tensions U down to GU \simeq 2 x 10^{-7} (in Planck units). This suggests that, with upcoming experiments such as the Atacama Cosmology Telescope (ACT), optimal non-Gaussian, string-devoted statistical estimators applied to small-angle CMB temperature or gradient maps may put stringent constraints on a possible cosmic string contribution to the CMB anisotropies.
description: 17 pages, 9 figures. v2: matches published version, minor clarifications added, typo in Eq. (8) fixed, results unchanged
A NLO analysis on fragility of dihadron tomography in high energy $AA$ collisions
Creators: name: Zhang, Hanzhong
name: Owens, J. F.
name: Wang, Enke
name: Wang, X. -N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dihadron spectra in high energy $AA$ collisions are studied within the NLO pQCD parton model with jet quenching taken into account. The high $p_T$ dihadron spectra are found to be contributed not only by jet pairs close and tangential to the surface of the dense matter but also by punching-through jets survived at the center while the single hadron high $p_T$ spectra are only dominated by surface emission. Consequently, the suppression factor of such high-$p_T$ hadron pairs is found to be more sensitive to the initial gluon density than the single hadron suppression factor.
description: 4 pages, 4 figures, proceedings for the 19th international Conference on ultra-relativistic nucleus-nucleus collisions (QM2006), Shanghai, China, November 14-20, 2006
Comparison of machine learning and deep learning techniques in promoter prediction across diverse species
Creators: name: Bhandari, Nikita
name: Khare, Satyajeet
name: Walambe, Rahee
name: Kotecha, Ketan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Genomics (q-bio.GN)
subject: Machine Learning (cs.LG)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Gene promoters are the key DNA regulatory elements positioned around the transcription start sites and are responsible for regulating gene transcription process. Various alignment-based, signal-based and content-based approaches are reported for the prediction of promoters. However, since all promoter sequences do not show explicit features, the prediction performance of these techniques is poor. Therefore, many machine learning and deep learning models have been proposed for promoter prediction. In this work, we studied methods for vector encoding and promoter classification using genome sequences of three distinct higher eukaryotes viz. yeast (Saccharomyces cerevisiae), A. thaliana (plant) and human (Homo sapiens). We compared one-hot vector encoding method with frequency-based tokenization (FBT) for data pre-processing on 1-D Convolutional Neural Network (CNN) model. We found that FBT gives a shorter input dimension reducing the training time without affecting the sensitivity and specificity of classification. We employed the deep learning techniques, mainly CNN and recurrent neural network with Long Short Term Memory (LSTM) and random forest (RF) classifier for promoter classification at k-mer sizes of 2, 4 and 8. We found CNN to be superior in classification of promoters from non-promoter sequences (binary classification) as well as species-specific classification of promoter sequences (multiclass classification). In summary, the contribution of this work lies in the use of synthetic shuffled negative dataset and frequency-based tokenization for pre-processing. This study provides a comprehensive and generic framework for classification tasks in genomic applications and can be extended to various classification problems.
description: 17 pages, 4 figures, 4 tables
title:  Ambiente, salute e lavoro nei nuovi articoli 9 e 41 della Costituzione: perimetri regolativi e prospettive di integrazione
Creators: name: Giovannone  ,  Maria
Publisher: name: RomaTrE-Press
Year: 2023

description: In the field of labour law, among the most critical issues around which the doctrinal and jurisprudential comparison has arisen is that of the employer’s responsibility in the field of health and safety in the context of new jobs, new ways of carrying out work and emerging risks. This debate has recently expanded in the light of the formal introjection of the demands of sustainability in the constitutional dictate and the new concept of environmental protection (including work) introduced by the combined provisions of the new articles. 9 and 41 of the Constitution. With particular reference to labour law, in fact, the constitutional reform feeds the debate on the social purpose of the company and economic activities and introduces new possible prospects for extending the obligations of employer protection also aimed at the environment outside the company. On this point, the critical contribution of the penal and constitutional doctrine was not lacking; therefore, also because of the marked interdisciplinary nature of the theme, the explicit introjection of environmental protection and the principle of sustainability in the Constitutional dictate makes a reflection appropriate. Firstly, on the possible extension of employers’ prevention obligations to the environment outside the organisation of the undertaking. Secondly, on the role that companies, workers and social partners can play in the development of environmental and ecological transition policies. After a critical reflection on the prospects for extending the prevention obligation – and the related employer liability – to the external environment, the paper focuses on possible integrations between environmental protection tools and those of occupational safety protection, in the wake of the experience gained from business organizational models, collective bargaining and other techniques of worker participation.
description: Giornate della Ricerca del Dipartimento di Economia di Roma Tre
Electric Impedance Tomography problem for surfaces with internal holes
Creators: name: Badanin, A. V.
name: Belishev, M. I.
name: Korikov, D. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35R30, 46J15, 46J20, 30F15

description: Let $(M,g)$ be a smooth compact Riemann surface with the multicomponent boundary $Γ=Γ_0\cupΓ_1\cup\dots\cupΓ_m=:Γ_0\cup\tildeΓ$. Let $u=u^f$ obey $Δu=0$ in $M$, $u|_{Γ_0}=f,\,\,u|_{\tildeΓ}=0$ (the grounded holes) and $v=v^h$ obey $Δv=0$ in $M$, $v|_{Γ_0}=h,\,\,\partial_νv|_{\tildeΓ}=0$ (the isolated holes). Let $Λ_{g}^{\rm gr}: f\mapsto\partial_νu^f|_{Γ_{0}}$ and $Λ_{g}^{\rm is}: h\mapsto\partial_νv^h|_{Γ_{0}}$ be the corresponding DN-maps. The EIT problem is to determine $M$ from $Λ_{g}^{\rm gr}$ or $Λ_{g}^{\rm is}$. To solve it, an algebraic version of the BC-method is applied. The main instrument is the algebra of holomorphic functions on the ma\-ni\-fold ${\mathbb M}$, which is obtained by gluing two examples of $M$ along $\tildeΓ$. We show that this algebra is determined by $Λ_{g}^{\rm gr}$ (or $Λ_{g}^{\rm is}$) up to isometric isomorphism. Its Gelfand spectrum (the set of characters) plays the role of the material for constructing a relevant copy $(M',g',Γ_{0}')$ of $(M,g,Γ_{0})$. This copy is conformally equivalent to the original, provides $Γ_{0}'=Γ_{0},\,\,Λ_{g'}^{\rm gr}=Λ_{g}^{\rm gr},\,\,Λ_{g'}^{\rm is}=Λ_{g}^{\rm is}$, and thus solves the problem.
description: 17 pages, 0 figures. arXiv admin note: text overlap with arXiv:2009.08367
Nodeless superconductivity in the centro- and noncentrosymmetric rhenium-boron superconductors
Creators: name: Shang, T.
name: Xie, W.
name: Zhao, J. Z.
name: Chen, Y.
name: Gawryluk, D. J.
name: Medarde, M.
name: Shi, M.
name: Yuan, H. Q.
name: Pomjakushina, E.
name: Shiroka, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a comprehensive study of the centrosymmetric Re$_3$B and noncentrosymmetric Re$_7$B$_3$ superconductors. At a macroscopic level, their bulk superconductivity (SC), with $T_c$ = 5.1 K (Re$_3$B) and 3.3 K (Re$_7$B$_3$), was characterized via electrical-resistivity, magnetization, and heat-capacity measurements, while their microscopic superconducting properties were investigated by means of muon-spin rotation/relaxation ($μ$SR). In both Re$_3$B and Re$_7$B$_3$ the low-$T$ zero-field electronic specific heat and the superfluid density (determined via tranverse-field $μ$SR) suggest a nodeless SC. Both compounds exhibit some features of multigap SC, as evidenced by temperature-dependent upper critical fields $H_\mathrm{c2}(T)$, as well as by electronic band-structure calculations. The absence of spontaneous magnetic fields below the onset of SC, as determined from zero-field $μ$SR measurements, indicates a preserved time-reversal symmetry in the superconducting state of both Re$_3$B and Re$_7$B$_3$. Our results suggest that a lack of inversion symmetry and the accompanying antisymmetric spin-orbit coupling effects are not essential for the occurrence of multigap SC in these rhenium-boron compounds.
description: 9 pages, 6 figures, accepted by Phys. Rev. B
Weak-strong uniqueness for the isentropic compressible Navier-Stokes system
Creators: name: Germain, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 76N10

description: We prove weak-strong uniqueness results for the isentropic compressible Navier-Stokes system on the torus. In other words, we give conditions on a strong solution so that it is unique in a class of weak solutions. Known weak-strong uniqueness results are improved. Classical uniqueness results for this equation follow naturally.
description: 12 pages