cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Excited states of the helium-antihydrogen system
Creators: name: Sharipov, V.
name: Labzowsky, L.
name: Plunien, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Potential energy curves for excited leptonic states of the helium-antihydrogen system are calculated within Ritz' variational approach. An explicitly correlated ansatz for the leptonic wave function is employed describing accurately the motion of the leptons (two electrons and positron) in the field of the helium nucleus and of the antiproton with arbitrary orbital angular momentum projection $Λ$ onto the internuclear axis. Results for $Λ$=0, 1 and 30 are presented. For quasibound states with large values of $Λ$ and rotational quantum numbers $J>Λ$ no annihilation and rearrangement decay channels occur, i. e. they are metastable.
Odderon with a running coupling constant
Creators: name: Braun, M. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The running coupling is introduced into the equation for the odderon via the bootstrap relation. It is shown that the previously found odderon state with a maximal intercept, which is constructed from antisymmetric pomeron wave function, continues to exist in the running coupling case. Its intercept is found to remain equal to unity independent of the behaviour assumed for the running coupling at low momenta.
description: 9 pages, LaTex
Braneworld Cosmology
Creators: name: Cline, James M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A brief review of the field of braneworld cosmology, from its inception with the large extra dimension scenario, to aspects of cosmology in warped extra dimensions, including the RS-I and RS-II models, braneworld inflation, the Goldberger-Wise mechanism, mirage cosmology, the radion-induced phase transition in RS-I, possible gravity wave signals, and the DGP model.
description: 14 pages, 2 figures, invited review talk given at "From Strings to LHC," International Center, Dona Paula, Goa, India, 2-10 Jan. 2007
Consistent Kaluza-Klein Reductions for General Supersymmetric AdS Solutions
Creators: name: Gauntlett, Jerome P.
name: Varela, Oscar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For the most general supersymmetric solutions of type IIB supergravity consisting of a warped product of AdS_5 with a five-dimensional manifold M_5, we construct an explicit consistent Kaluza-Klein reduction on M_5 to minimal D=5 gauged supergravity. Thus, any solution of the gauged supergravity can be uplifted on M_5 to obtain an exact solution of type IIB supergravity. We also show that for general AdS_4 x SE_7 solutions, where SE_7 is a seven-dimensional Sasaki-Einstein manifold, and for a general class of supersymmetric solutions that are a warped product of AdS_4 with a seven-dimensional manifold N_7, there is an analogous consistent reduction to minimal D=4 gauged supergravity.
description: 21 pages; v2: References, some minor comments, and acknowledgements added. Version to appear in Phys. Rev. D
‘storytelling science’ approach making the eco-business modeling turn
Creators: name: Boje, David Michael
name: Jørgensen, Kenneth Mølbjerg
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose: To develop a transdisciplinary ecological-business model paradigm (eco-business modelling). Design Methodology Approach: We do that in four steps. First step is an analysis of the ways triple bottom line and circular economy emplotments have colonized and co-opted the United Nations and European Union Agenda 2030 initiatives by privileging business-as-usual scenarios of ‘sustainable development. Findings: The challenge is instead to create comprehensive ecological business models that foster worst-case and best case scenario comparisons with status quo business-as-usual. Originality Value: We propose that business modeling is about storytelling, making ‘bets on the future’ scenarios and propose a ‘five worlds of storytelling model’ to business modeling. Research Implications: ‘New Business models’ (NBMs) research is getting beyond silo building to develop interdisciplinary and multidisciplinary theory, research, and praxis that is ecologically accountable. The contribution is to propose a ‘self-correcting’ storytelling method of iterative, ‘crossover storytelling conversations’ as a way of developing collaborative ‘interdisciplinary research projects’ across specialized business model disciplines. We contend that self-correcting storytelling conversations fit scientific methods of inquiry to allow business modelers comparison of alternative future scenarios for more effective risk management. Practical Implications: We call for crossover conversations that challenge unintended consequences of the triple bottom line and circular economy business models. Social Implications: With ozone depletion, climate change, natural resource depletion, loss of biodiversity and habitat — there are pressures to develop ecologically sensitive business models. Classification: Conceptual Paper Key words: eco-business models, storytelling, triple bottom line, circular economy, scenario-analysis, transdisciplinary conversations
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Equilibrium states for interval maps: the potential $-t\log |Df|$
Creators: name: Bruin, Henk
name: Todd, Mike
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D35; 37D25; 37E05

description: Let $f:I \to I$ be a $C^2$ multimodal interval map satisfying polynomial growth of the derivatives along critical orbits. We prove the existence and uniqueness of equilibrium states for the potential $ϕ_t:x\mapsto -t\log|Df(x)|$ for $t$ close to 1, and also that the pressure function $t \mapsto P(ϕ_t)$ is analytic on an appropriate interval near $t = 1$.
Galaxy redshift surveys selected by neutral hydrogen using FAST
Creators: name: Duffy, Alan R.
name: Battye, Richard A.
name: Davies, Rod D.
name: Moss, Adam
name: Wilkinson, Peter N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the possibility of performing a substantial spectroscopic galaxy redshift survey selected via the 21cm emission from neutral hydrogen using the Five-hundred metre Aperture Spherical Telescope (FAST) to be built in China. We consider issues related to the estimation of the source counts and optimizations of the survey, and discuss the constraints on cosmological models that such a survey could provide. We find that a survey taking around two years could detect ~10^7 galaxies with an average redshift of ~0.15 making the survey complementary to those already carried out at optical wavelengths. These conservative estimates have used the z=0 HI mass function and have ignored the possibility of evolution. The results could be used to constrain Gamma = (Omega_m h) to 5 per cent and the spectral index, n_s, to 7 per cent independent of cosmic microwave background data. If we also use simulated power spectra from the Planck satellite, we can constrain w to be within 5 per cent of -1.
description: 13 pages, 15 figures, Accepted by MNRAS, minor corrections
Plasmon modes of coupled quantum Hall edge channels in the presence of disorder-induced tunneling
Creators: name: Fujisawa, Toshimasa
name: Lin, Chaojing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coupled quantum Hall edge channels show intriguing non-trivial modes, for example, charge and neutral modes at Landau level filling factors 2 and 2/3. We propose an appropriate and effective model with Coulomb interaction and disorder-induced tunneling characterized by coupling capacitances and tunneling conductances, respectively. This model explains how the transport eigenmodes, within the interaction- and disorder-dominated regimes, change with the coupling capacitance, tunneling conductance, and measurement frequency. We propose frequency- and time-domain transport experiments, from which eigenmodes can be determined using this model.
description: 7 pages, 3 figures
Revealing Hidden Context: Improving Mental Models of Personal Firewall Users
Creators: name: Raja, Fahimeh
name: Hawkey, Kirstie
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2009
Subjects: Usable security
firewall
configuration
mental model
issnet

description: The Windows Vista personal firewall provides its diverse users with a basic interface that hides many operational details. However, concealing the impact of network context on the security state of the firewall may result in users developing an incorrect mental model of the protection provided by the firewall.  We present a study of participants' mental models of Vista Firewall (VF). We investigated changes to those mental models and their understanding of the firewall's settings after working with both the VF basic interface and our prototype. Our prototype was designed to support development of a more contextually complete mental model through inclusion of network location and connection information. We found that participants produced richer mental models after using the prototype than when working with the VF basic interface; they were also significantly more accurate in their understanding of the configuration of the firewall.  Based on our results, we discuss methods of improving user understanding of underlying system states by revealing hidden context, while considering the tension between complexity of the interface and security of the system.
title: CHÉRI-BIBI
Creators: name: Misraki, Paul
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: subject: Musique de film

description: Esquisses, relevés, manuscrits des partitions musicales du film réalisé par Léon Mathot : CHÉRI-BIBI. 246 grandes pages, 13 paysages, 15 A4 paysages
description: Temporal: XXème siècle
Cluster dynamics studied with the phase-space Minimum Spanning Tree approach
Creators: name: Kireyeu, Viktar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The origin of weakly bound objects like clusters and hypernuclei, observed in heavy-ion collisions, is of theoretical and experimental interest. It is in the focus of the experiments at RHIC and LHC since it is not evident how such weakly bound objects can survive in an environment whose hadronic decay products point to a temperature of the order of 150 MeV. It is as well one of the key research topics in the future facilities of FAIR and NICA which are under construction in Darmstadt (Germany) and Dubna (Russia), respectively. We present here first results on the cluster dynamics within the model-independent cluster recognition library "phase-space Minimum Spanning Tree" (psMST) applied to different transport approaches: PHQMD, PHSD, SMASH and UrQMD. The psMST is based on the "Minimum Spanning Tree" (MST) algorithm for the cluster recognition which exploits correlations in coordinate space, and it is extended to correlations of baryons in the clusters in momentum space. We show the sensitivity of the cluster formation on the microscopic realization of the n-body dynamics and on the potential interactions in heavy-ion collisions.
Simultaneous Face Hallucination and Translation for Thermal to Visible Face Verification using Axial-GAN
Creators: name: Immidisetti, Rakhil
name: Hu, Shuowen
name: Patel, Vishal M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Existing thermal-to-visible face verification approaches expect the thermal and visible face images to be of similar resolution. This is unlikely in real-world long-range surveillance systems, since humans are distant from the cameras. To address this issue, we introduce the task of thermal-to-visible face verification from low-resolution thermal images. Furthermore, we propose Axial-Generative Adversarial Network (Axial-GAN) to synthesize high-resolution visible images for matching. In the proposed approach we augment the GAN framework with axial-attention layers which leverage the recent advances in transformers for modelling long-range dependencies. We demonstrate the effectiveness of the proposed method by evaluating on two different thermal-visible face datasets. When compared to related state-of-the-art works, our results show significant improvements in both image quality and face verification performance, and are also much more efficient.
description: International Joint Conference on Biometrics (IJCB)
title: Agricultural drought characterization for sugarcane management in Thailand
Creators: name: Piyapong Wongkhunkaew
name: Vichai Sriboonlue
name: Supasit Konyai
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Drought hazard
Sugarcane
Standardized actual evapotranspiration index
El Nino
Theory of runs

description: Engineering and Applied Science Research, 52, 2, 148-158
BAT AGN Spectroscopic Survey XXVII: Scattered X-Ray Radiation in Obscured Active Galactic Nuclei
Creators: name: Gupta, K. K.
name: Ricci, C.
name: Tortosa, A.
name: Ueda, Y.
name: Kawamuro, T.
name: Koss, M.
name: Trakhtenbrot, B.
name: Oh, K.
name: Bauer, F. E.
name: Ricci, F.
name: Privon, G. C.
name: Zappacosta, L.
name: Stern, D.
name: Kakkad, D.
name: Piconcelli, E.
name: Veilleux, S.
name: Mushotzky, R.
name: Caglar, T.
name: Ichikawa, K.
name: Elagali, A.
name: Powell, M. C.
name: Urry, C. M.
name: Harrison, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Accreting supermassive black holes (SMBHs), also known as active galactic nuclei (AGN), are generally surrounded by large amounts of gas and dust. This surrounding material reprocesses the primary X-ray emission produced close to the SMBH and gives rise to several components in the broadband X-ray spectra of AGN, including a power-law possibly associated with Thomson-scattered radiation. In this work, we study the properties of this scattered component for a sample of 386 hard-X-ray-selected, nearby ($z \sim 0.03$) obscured AGN from the 70-month Swift/BAT catalog. We investigate how the fraction of Thomson-scattered radiation correlates with different physical properties of AGN, such as line-of-sight column density, X-ray luminosity, black hole mass, and Eddington ratio. We find a significant negative correlation between the scattering fraction and the column density. Based on a large number of spectral simulations, we exclude the possibility that this anti-correlation is due to degeneracies between the parameters. The negative correlation also persists when considering different ranges of luminosity, black hole mass, and Eddington ratio. We discuss how this correlation might be either due to the angle dependence of the Thomson cross-section or to more obscured sources having a higher covering factor of the torus. We also find a positive correlation between the scattering fraction and the ratio of [OIII] $λ$5007 to X-ray luminosity. This result is consistent with previous studies and suggests that the Thomson-scattered component is associated with the narrow-line region.
description: Accepted for publication in MNRAS, 18 pages, 9 figures, 2 tables, 1 equation
Nonlinear circular dichroism in Mie-resonant nanoparticle dimers
Creators: name: Frizyuk, Kristina
name: Melik-Gaykazyan, Elizaveta
name: Choi, Jae-Hyuck
name: Petrov, Mihail
name: Park, Hong-Gyu
name: Kivshar, Yuri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study nonlinear response of a dimer composed of two identical Mie-resonant dielectric nanoparticles illuminated normally by a circularly polarized light. We develop a general theory describing hybridization of multipolar modes of the coupled nanoparticles, and reveal nonvanishing nonlinear circular dichroism (CD) in the second-harmonic generation (SHG) signal enhanced by the multipolar resonances in the dimer provided its axis is oriented under an angle to the crystalline lattice of the dielectric material. We present experimental results for this SHG-CD effect obtained for the AlGaAs dimers placed on an engineered substrate which confirm the basic prediction of our general multipolar hybridization theory.
Non-adiabatic Effects in the Dissociation of Oxygen Molecules at the Al(111) Surface
Creators: name: Behler, Jorg
name: Reuter, Karten
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The measured low initial sticking probability of oxygen molecules at the Al(111) surface that had puzzled the field for many years was recently explained in a non-adiabatic picture invoking spin-selection rules [J. Behler et al., Phys. Rev. Lett. 94, 036104 (2005)]. These selection rules tend to conserve the initial spin-triplet character of the free O2 molecule during the molecule's approach to the surface. A new locally-constrained density-functional theory approach gave access to the corresponding potential-energy surface (PES) seen by such an impinging spin-triplet molecule and indicated barriers to dissociation which reduce the sticking probability. Here, we further substantiate this non-adiabatic picture by providing a detailed account of the employed approach. Building on the previous work, we focus in particular on inaccuracies in present-day exchange-correlation functionals. Our analysis shows that small quantitative differences in the spin-triplet constrained PES obtained with different gradient-corrected functionals have a noticeable effect on the lowest kinetic energy part of the resulting sticking curve.
description: 17 pages including 11 figures; related publications can be found at http://www.fhi-berlin.mpg.de/th/th.html
User Centered Design of ITSM Tools
Creators: name: Jaferian, Pooya
Publisher: name: Zenodo
Year: 2009
Subjects: Security Tools
Usable Security
Security Practitioners
Collaboration
Case Study
IdM
Heuristic Evaluation
issnet

description: IT Security Management (ITSM) requires collaboration between diverse stakeholders, has an environment of numerous technological and business specializations (is complex), has many issues that need to be handled with discretion, is fast paced, uncertain, requires reliance of practitioners on tacit knowledge, and there is lack of immediate feedback when imposing a change on the system. Direct observation of tool use can be time consuming as much security work is spontaneous (e.g. security incident response) or occurs over many months. As ITSM tool use is intrinsically cooperative, its study inherits the difficulties of studying cooperation. As a result, we argue that discount usability evaluation of ITSM tools could be a viable component of user centered design of ITSM tools. We address the lack of discount usability evaluation methods for ITSM tools by developing guidelines and heuristics for evaluation of ITSM tools.
The tightness of multipartite coherence from spectrum estimation
Creators: name: Ding, Qi-Ming
name: Fang, Xiao-Xu
name: Lu, He
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Detecting multipartite quantum coherence usually requires quantum state reconstruction, which is quite inefficient for large-scale quantum systems. Along this line of research, several efficient procedures have been proposed to detect multipartite quantum coherence without quantum state reconstruction, among which the spectrum-estimation-based method is suitable for various coherence measures. Here, we first generalize the spectrum-estimation-based method for the geometric measure of coherence. Then, we investigate the tightness of the estimated lower bound of various coherence measures, including the geometric measure of coherence, $l_1$-norm of coherence, the robustness of coherence, and some convex roof quantifiers of coherence multiqubit GHZ states and linear cluster states. Finally, we demonstrate the spectrum-estimation-based method as well as the other two efficient methods by using the same experimental data [Ding et al. Phys. Rev. Research 3, 023228 (2021)]. We observe that the spectrum-estimation-based method outperforms other methods in various coherence measures, which significantly enhances the accuracy of estimation.
description: 7 pages, 1 figure
Structure and properties of crosslinked high density polyethylene nanocomposite materials:
Creators: name: Ρούμελη, Ελευθερία Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Νανοσύνθετα
Πολυμερή
Δομή
Υλικά
Nanocomposites
Polymers
Structure
Materials

description: Σκοπός της διατριβής ήταν να ενισχυθούν οι ιδιότητες ενός βιομηχανικού πολυμερούς, του δικτυωμένου υψηλής πυκνότητας πολυαιθυλενίου με προσθήκη νανοϋλικών. Συγκεκριμένα επιλέχθηκαν οι νανοσωλήνες άνθρακα πολλαπλών τοιχωμάτων, τα νανοδιαμάντια και συνδυασμοί αυτών ως νανοπρόσθετα ενισχυτικά υλικά. Λόγω του ότι η κύρια χρήση του συγκεκριμένου πολυμερούς είναι οι σωλήνες γεωθερμίας, επιχειρήθηκε η ενίσχυση κυρίως των μηχανικών του ιδιοτήτων και της θερμικής του αγωγιμότητας. Με χρήση διάφορων φυσικοχημικών τεχνικών χαρακτηρισμού και με ακόλουθη ανάλυση των πειραματικών δεδομένων προέκυψαν τα εξής συμπεράσματα: η προσθήκη νανοσωλήνων άνθρακα πολλαπλών τοιχωμάτων ή νανοδιαμαντιών οδηγεί σε σημαντική ενίσχυση των μηχανικών ιδιοτήτων (μέτρο ελαστικότητας, αντοχή στο όριο διαρροής και θραύσης, δυσθραυστότητα) του πολυμερούς με διαφορετικούς τρόπους και διαφορετικές τάσεις. Επίσης με διαφορετικούς τρόπους επιτυγχάνεται η ενίσχυση της θερμικής αγωγιμότητας του πολυμερούς όταν σε αυτό προστίθενται ποσότητες των συγκεκριμένων νανοϋλικών. Η προσθήκη και των δύο τύπων νανοπρόσθετων στο συγκεκριμένο πολυμερές επιφέρει μικρότερη ενίσχυση τόσο των μηχανικών ιδιοτήτων όσο και της θερμικής αγωγιμότητας. Αναπτύχθηκαν διάφορα πρωτότυπα μοντέλα εσωτερικής μικροδομής-ιδιοτήτων για τα νανοσύνθετα πολυμερικά συστήματα που παρασκευάστηκαν, τα οποία ερμηνεύουν σε ικανοποιητικό βαθμό τις μακροσκοπικά παρατηρούμενες ιδιότητες των συγκεκριμένων υλικών.
description: The aim of this work was to enhance the properties of an industrial polymer, cross-linked high density polyethylene, with the incorporation of nanomaterials. The selected reinforcing nanomaterials were multiwall carbon nanotubes, nanodiamonds and combinations them. As the primary use of that particular polymer is for pipes for geothermal applications, we mainly focused on the enhancement of the mechanical properties and thermal conductivity. By using various physicochemical characterization techniques and subsequent analysis of the experimental data, the following conclusions were drawn: the addition of multiwall carbon nanotubes and nanodiamonds leads to significant enhancement of crosslinked high density polyethylene’s mechanical properties (elastic modulus, yield and ultimate strength, toughness) which is achieved in different ways and presents different trends. The significant thermal conductivity enhancement is also achieved in different ways for the different types of nanoparticles. The incorporation of both types nanofillers in that particular polymer results in a less significant enhancement of both the mechanical properties and thermal conductivity. In the present thesis, several internal microstructure-property models have been developed which successfully explain the observed macroscopic properties of these materials.
Matter waves in atomic-molecular condensates with Feshbach resonance management
Creators: name: Abdullaev, F Kh
name: Ogren, M
name: Yuldashev, J S
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Chaotic Dynamics (nlin.CD)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The dynamics of matter waves in the atomic to molecular condensate transition with a time-modulated atomic scattering length is investigated. Both the cases of rapid and slow modulations are studied. In the case of rapid modulations, the average over oscillations for the system is derived. The corresponding conditions for dynamical suppression of the association of atoms into the molecular field, or of second-harmonic generation in nonlinear optical systems, are obtained. For the case of slow modulations, we find resonant enhancement in the molecular field. We then illustrate chaos in the atomic-molecular BEC system. We suggest a sequential application of the two types of modulations, slow and rapid, when producing molecules.
Cahiers Mérimée. 2014, n° 6
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2014
Subjects: subject: Sources
subject: Influences
subject: Plagiat
subject: Parodie
subject: Presse romantique
subject: Opéra

description: Contributeurs : René Andioc, Françoise Bercé, Xavier Bourdenet, Jean Canavaggio, Guillaume Cousin, Barbara Dimopoulou, Antonia Fonyi, Anne Geisler-Szmulewicz, Jean Goyetche, Alexandre Stroev, Sylvie Thorel et Peter Whyte.
Sustainable Value Creation Through Business Models
Creators: name: Lüdke-Freund, Florian
name: Rauter, Romana
name: Gjerdum Pedersen, Esben Rahbeck
name: Nielsen, Christian
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose: We discuss traditional assumptions about value creation and confront these with current views on sustainable value creation (SVC). Against this backdrop, the articles contained in the special issue ‘Sustainable Value Creation Through Business Models’ are introduced, and their contributions to the exploration of SVC are highlighted.* Methodology: Assumptions about value creation are summarised and turned into an initial theoretical framework concerning the what, who and how of value creation. This framework is used to structure and discuss current views on SVC that have been presented in the sustainable business model (SBM) litterature. Findings: The proposed framework identifies cornerstones for theorising about SVC in regard to the what, who and how of value creation. A main finding is that, although value creation and SVC are widely discussed in the literature, there are huge gaps in terms of the who, what and how of value creation, particularly in the SBM field. Research implications and limitations: The major implication is that the SBM discourse still lacks clear SVC concepts, and closing this gap may enable the creation of a new multi- and interdisciplinary research programme. A major limitation of this paper is the mainly theoretical and preliminary nature of the presented discussion and framework. Originality and value: There is a surprising dearth of definitions and concepts of value creation in both the traditional business model and SBM research. The originality and value of this paper lie in its potential to stimulate further research on the theoretical foundations of SVC. Various theoretical propositions are developed, including notions such as stakeholder-responsive and relational interpretations of value creation.
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Classical mechanics as nonlinear quantum mechanics
Creators: name: Nikolic, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All measurable predictions of classical mechanics can be reproduced from a quantum-like interpretation of a nonlinear Schrodinger equation. The key observation leading to classical physics is the fact that a wave function that satisfies a linear equation is real and positive, rather than complex. This has profound implications on the role of the Bohmian classical-like interpretation of linear quantum mechanics, as well as on the possibilities to find a consistent interpretation of arbitrary nonlinear generalizations of quantum mechanics.
description: 7 pages, invited talk given at conference Quantum Theory: Reconsideration of Foundations 4, Vaxjo, Sweden, June 11-16, 2007
The Differential Rotation of Kappa1 Ceti as Observed by MOST
Creators: name: Walker, Gordon A. H.
name: Croll, Bryce
name: Kuschnig, Rainer
name: Walker, Andrew
name: Rucinski, Slavek M.
name: Matthews, Jaymie M.
name: Guenther, David B.
name: Moffat, Anthony F. J.
name: Sasselov, Dimitar
name: Weiss, Werner W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We first reported evidence for differential rotation of Kappa1 Ceti in Paper I. In this paper we demonstrate that the differential rotation pattern closely matches that for the Sun. This result is based on additional MOST (Microvariability & Oscillations of STars) observations in 2004 and 2005, to complement the 2003 observations discussed in Paper I. Using StarSpotz, a program developed specifically to analyze MOST photometry, we have solved for k, the differential rotation coefficient, and P_{EQ}, the equatorial rotation period using the light curves from all three years. The spots range in latitude from 10 to 75 degrees and k = 0.090^{+0.006}_{-0.005} -- less than the solar value but consistent with the younger age of the star. k is also well constrained by the independent spectroscopic estimate of vsini. We demonstrate independently that the pattern of differential rotation with latitude in fact conforms to solar. Details are given of the parallel tempering formalism used in finding the most robust solution which gives P_{EQ} = 8.77^{+0.03}_{-0.04} days -- smaller than that usually adopted, implying an age < 750 My. Our values of P_{EQ} and k can explain the range of rotation periods determined by others by spots or activity at a variety of latitudes. Historically, Ca II activity seems to occur consistently between latitudes 50 and 60 degrees which might indicate a permanent magnetic feature. Knowledge of k and P_{EQ} are key to understanding the dynamo mechanism and rotation structure in the convective zone as well assessing age for solar-type stars. We recently published values of k and P_{EQ} for epsilon Eri based on MOST photometry and expect to analyze MOST light curves for several more spotted, solar-type stars.
description: 16 pages, 7 Figures, published in ApJ
Correlation-driven topological and valley states in monolayer VSi$_{2}$P$_{4}$
Creators: name: Li, Si
name: Wang, Qianqian
name: Zhang, Chunmei
name: Guo, Ping
name: Yang, Shengyuan A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic correlations could have significant impact on the material properties. They are typically pronounced for localized orbitals and enhanced in low-dimensional systems, so two-dimensional (2D) transition metal compounds could be a good platform to study their effects. Recently, a new class of 2D transition metal compounds, the MoSi$_2$N$_4$-family materials, have been discovered, and some of them exhibit intrinsic magnetism. Here, taking monolayer VSi$_{2}$P$_{4}$ as an example from the family, we investigate the impact of correlation effects on its physical properties, based on the first-principles calculations. We find that different correlation strength can drive the system into a variety of interesting ground states, with rich magnetic, topological and valley features. With increasing correlation strength, while the system favors a ferromagnetic semiconductor state for most cases, the magnetic anisotropy and the band gap type undergo multiple transitions, and in the process, the band edges can form single, two or three valleys for electrons or holes. Remarkably, there is a quantum anomalous Hall (QAH) insulator phase, which has a unit Chern number. The boundary of the QAH phase correspond to the half-valley semimetal state with fully valley polarized bulk carriers. We further show that for phases with the out-of-plane magnetic anisotropy, the interplay between spin-orbit coupling and orbital character of valleys enable an intrinsic valley polarization for electrons but not for holes. This electron valley polarization can be switched by reversing the magnetization direction, providing a new route of magnetic control of valleytronics. Our result sheds light on the possible role of correlation effects in the 2D transition metal compounds, and it will open new perspectives for spintronic, valleytronic and topological nanoelectronic applications based on these materials.
description: 8 pages, 8 figures
title: Optimization of green-synthesized silver nanoparticles using Mimosa pudica L. for enhanced photocatalytic degradation of methylene blue: A response surface methodology approach
Creators: name: Pharini Chaison
name: Wimonrat Tongpoothorn
name: Kitiyaporn Wittayanarakul
name: Manop Sriuttha
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Silver nanoparticles
Methylene blue
Response surface methodology
Photocatalytic degradation
Mimosa pudica L.

description: Engineering and Applied Science Research, 52, 2, 159-173
The stellar mass in and around isolated central galaxies: connections to the total mass distribution through galaxy-galaxy lensing in the Hyper Suprime-Cam survey
Creators: name: Wang, Wenting
name: Li, Xiangchong
name: Shi, Jingjing
name: Han, Jiaxin
name: Yasuda, Naoki
name: Jing, Yipeng
name: More, Surhud
name: Takada, Masahiro
name: Miyatake, Hironao
name: Nishizawa, Atsushi J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using photometric galaxies from the HSC survey, we measure the stellar mass density profiles for satellite galaxies as a function of the projected distance, $r_p$, to isolated central galaxies (ICGs) selected from SDSS/DR7 spectroscopic galaxies at $z\sim0.1$. By stacking HSC images, we also measure the projected stellar mass density profiles for ICGs and their stellar halos. The total mass distributions are further measured from HSC weak lensing signals. ICGs dominate within $\sim$0.15 times the halo virial radius ($0.15R_{200}$). The stellar mass versus total mass fractions drop with the increase in $r_p$ up to $\sim0.15R_{200}$, beyond which they are less than 1\% while stay almost constant, indicating the radial distribution of satellites trace dark matter. The total stellar mass in satellites is proportional to the virial mass of the host halo, $M_{200}$, for ICGs more massive than $10^{10.5}M_\odot$, i.e., $M_{\ast,\mathrm{sat}} \propto M_{200}$, whereas the relation between the stellar mass of ICGs $+$ stellar halos and $M_{200}$ is close to $M_{\ast,\mathrm{ICG+diffuse}}\propto M_{200}^{1/2}$. Below $10^{10.5}M_\odot$, the change in $M_{200}$ is much slower with the decrease in $M_{\ast,\mathrm{ICG+diffuse}}$. At fixed stellar mass, red ICGs are hosted by more massive dark matter halos and have more satellites. At $M_{200}\sim10^{12.7}M_\odot$, both $M_{\ast,\mathrm{sat}}$ and the fraction of stellar mass in satellites versus total stellar mass, $f_\mathrm{sat}$, tend to be slightly higher around blue ICGs, perhaps implying the late formation of blue galaxies. $f_\mathrm{sat}$ increases with the increase in both $M_{\ast,\mathrm{ICG+diffuse}}$ and $M_{200}$, and scales more linearly with $M_{200}$. We provide best-fitting formulas for these scaling relations and for red and blue ICGs separately.
description: accepted by ApJ - comments welcome - data available upon request
Towards Productizing AI/ML Models: An Industry Perspective from Data Scientists
Creators: name: Lanubile, Filippo
name: Calefato, Fabio
name: Quaranta, Luigi
name: Amoruso, Maddalena
name: Fumarola, Fabio
name: Filannino, Michele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The transition from AI/ML models to production-ready AI-based systems is a challenge for both data scientists and software engineers. In this paper, we report the results of a workshop conducted in a consulting company to understand how this transition is perceived by practitioners. Starting from the need for making AI experiments reproducible, the main themes that emerged are related to the use of the Jupyter Notebook as the primary prototyping tool, and the lack of support for software engineering best practices as well as data science specific functionalities.
description: 4 pages
Electron Beam Irradiation of Gallium Nitride-on-Silicon Betavoltaics Fabricated with a Triple Mesa Etch
Creators: name: Heuser, T.
name: Braun, M.
name: Senesky, D. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A process for growing gallium nitride (GaN) vertical p-i-n homojunctions on (111) silicon (Si) substrates using metalorganic chemical vapor deposition (MOCVD) was developed, and a triple mesa etch technique was used to fabricate efficient betavoltaic energy converters. Monte Carlo simulation platform CASINO was used to model beta radiation penetration into GaN to aid device design. The resulting devices were tested under irradiation from a scanning electron microscope (SEM) electron beam (e-beam) tuned to imitate the energies of the 63Ni beta emission spectrum. Based on current-voltage (I-V) measurements taken under e-beam illumination, a maximum open-circuit voltage of 412 mV and a maximum short-circuit current density of 407 nA/cm2 were measured. A high fill factor (FF) of 0.77 and power conversion efficiency of 6.6% were obtained. Additionally, the proposed triple mesa etch technique used to create these betavoltaics has potential for further use in fabricating many types of electronic devices using a wide variety of material platforms.
description: 7 pages, 8 figures
title: Europium-doped soda lime borosilicate glass from agricultural wastes: Physical, structural, and optical properties
Creators: name: Serifat O. Adeleye
name: Adekunle A. Adeleke
name: Nzerem, Petrus
name: Adebayo I. Olosho
name: Anosike-Francis, Esther N.
name: Waliyi A. Adeleke
name: Abdulkarim M. Hamza
name: Prabhu Paramasivam
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Bio-silicate materials
Europium-doped
Borosilicate glass
Agricultural wastes
Melt-quenching technique

description: Engineering and Applied Science Research, 52, 2, 174-187
Accounting and ecocentrism:
Creators: name: Di Fabio, Costanza
Publisher: name: Journal of Business Models
Year: 2021

description: This commentary on A ‘storytelling science’ approach making the eco-business modelling turn discusses ecocentrism in relation to accounting, providing an overview of the debate on the matter. Some tools are suggested to provide organisations and research with food for thought in the perspective of creating higher awareness of value generated by ecosystems.
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Divide and create. A commoning approach to business modeling
Creators: name: Van Andel, Walter
name: Herman, Arne
name: Schramme, Annick
Publisher: name: Journal of Business Models
Year: 2021

description: Under pressure of declines in the cultural sector, many classical music organizations are reacting similarly with a turn towards predictability regarding both organizational model and artistic output. This paper examines the business model of an organization that utilizes a commoning approach in order to unlock possibilities for artistic innovation.
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Tau-jet signatures of vectorlike quark decays to heavy charged and neutral Higgs bosons
Creators: name: Dermisek, Radovan
name: Lunghi, Enrico
name: McGinnis, Navin
name: Shin, Seodong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study $4b+2τ$ and $4b+1τ$ signatures of heavy neutral and charged Higgs bosons originating from cascade decays of pair-produced new quarks. Decays of vectorlike quarks through heavy Higgses can easily dominate in the two Higgs doublet model of type-II, and the studied signatures are common to many possible decay chains. We design search strategies for these final states and discuss the mass ranges of heavy Higgs bosons and new quarks that can be explored at the Large Hadron Collider as functions of branching ratios in a model independent way. We further combine the results with a similar study focusing on decays which lead to a $6b$ final state and interpret the sensitivity to charged and neutral Higgs bosons and vectorlike quarks in the type-II two Higgs doublet model. We find that the LHC reach for their masses extends to well above 2 TeV in the case of an SU(2) doublet quark and to at least 1.8 TeV for a bottom-like SU(2) singlet quark in the whole range of $\tanβ$ between 1 and 50.
description: 19 pages, 10 figures; v2: matches published version
Motives for perfect PAC fields with pro-cyclic Galois group
Creators: name: Halupczok, Immanuel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic (math.LO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 03C10; 03C60; 03C98; 12L12; 12E30; 12F10; 14G15; 14G27

description: Denef and Loeser defined a map from the Grothendieck ring of sets definable in pseudo-finite fields to the Grothendieck ring of Chow motives, thus enabling to apply any cohomological invariant to these sets. We generalize this to perfect, pseudo algebraically closed fields with pro-cyclic Galois group. In addition, we define some maps between different Grothendieck rings of definable sets which provide additional information, not contained in the associated motive. In particular we infer that the map of Denef-Loeser is not injective.
description: 15 pages, to appear in JSL; minor corrections and one proof replaced by a sketch of proof and a reference
Ultrafast coherent all-optical switching of an antiferromagnet with the inverse Faraday effect
Creators: name: Dannegger, Tobias
name: Berritta, Marco
name: Carva, Karel
name: Selzer, Severin
name: Ritzmann, Ulrike
name: Oppeneer, Peter M.
name: Nowak, Ulrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the possibility of ultrafast, coherent all-optical magnetization switching in antiferromagnets by studying the action of the inverse Faraday effect in CrPt, an easy-plane antiferromagnet. Using a combination of density functional theory and atomistic spin dynamics simulations, we show how a circularly polarized laser pulse can switch the order parameter of the antiferromagnet within a few hundred femtoseconds. This nonthermal switching takes place on an elliptical path, driven by the staggered magnetic moments induced by the inverse Faraday effect and leading to reliable switching between two perpendicular magnetic states.
description: 6 pages, 6 figures
Fully relativistic predictions in Horndeski gravity from standard Newtonian N-body simulations
Creators: name: Brando, Guilherme
name: Koyama, Kazuya
name: Wands, David
name: Zumalacárregui, Miguel
name: Sawicki, Ignacy
name: Bellini, Emilio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The N-body gauge allows the introduction of relativistic effects in Newtonian cosmological simulations. Here we extend this framework to general Horndeski gravity theories, and investigate the relativistic effects that the scalar field introduces in the matter power spectrum at intermediate and large scales. In particular, we show that the kineticity function at these scales enhances the amplitude of the signal of contributions coming from the extra degree of freedom. Using the Quasi-Static Approximation (QSA), we separate modified gravity effects into two parts: one that only affects small-scale physics, and one that is due to relativistic effects. This allows our formalism to be readily implemented in modified gravity N-body codes in a straightforward manner, e.g., relativistic effects can be included as an additional linear density field in simulations. We identify the emergence of gravity acoustic oscillations (GAOs) in the matter power spectrum at large scales, $k \sim 10^{-3}-10^{-2}$ Mpc$^{-1}$. GAO features have a purely relativistic origin, coming from the dynamical nature of the scalar field. GAOs may be enhanced to detectable levels by the rapid evolution of the dark energy sound horizon in certain modified gravity models and can be seen as a new test of gravity at scales probed by future galaxy and intensity-mapping surveys.
description: 26 pages, 11 figures and 1 table. To appear in JCAP
The correlation between soft and hard X-rays component in flares: from the Sun to the stars
Creators: name: Isola, C.
name: Favata, F.
name: Micela, G.
name: Hudson, H. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this work we study the correlation between the soft (1.6--12.4 keV, mostly thermal) and the hard (20--40 and 60--80 keV, mostly non-thermal) X-ray emission in solar flares up to the most energetic events, spanning about 4 orders of magnitude in peak flux, establishing a general scaling law and extending it to the most intense stellar flaring events observed to date. We used the data from the Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) spacecraft, a NASA Small Explorer launched in February 2002. RHESSI has good spectral resolution (~1 keV in the X-ray range) and broad energy coverage (3 keV--20 MeV), which makes it well suited to distinguish the thermal from non-thermal emission in solar flares. Our study is based on the detailed analysis of 45 flares ranging from the GOES C-class, to the strongest X-class events, using the peak photon fluxes in the GOES 1.6--12.4 keV and in two bands selected from RHESSI data, i.e.20--40 keV and 60--80 keV. We find a significant correlation between the soft and hard peak X-ray fluxes spanning the complete sample studied. The resulting scaling law has been extrapolated to the case of the most intense stellar flares observed, comparing it with the stellar observations. Our results show that an extrapolation of the scaling law derived for solar flares to the most active stellar events is compatible with the available observations of intense stellar flares in hard X-rays.
description: 9 pages, 10 figures. To be published in Astronomy and Astrophysics