cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New branching rules induced by plethysm
Creators: name: Fauser, B.
name: Jarvis, P. D.
name: King, R. C.
name: Wybourne, B. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 05E05; 16W30; 20G10; 11E57

description: We derive group branching laws for formal characters of subgroups $H_π$ of GL(n) leaving invariant an arbitrary tensor $T^π$ of Young symmetry type $π$ where $π$ is an integer partition. The branchings $GL(n)\downarrow GL(n-1)$, $GL(n)\downarrow O(n)$ and $GL(2n)\downarrow Sp(2n)$ fixing a vector $v_i$, a symmetric tensor $g_{ij}=g_{ji}$ and an antisymmetric tensor $f_{ij}=-f_{ji}$, respectively, are obtained as special cases. All new branchings are governed by Schur function series obtained from plethysms of the Schur function $s_π\equiv {\{} π{\}}$ by the basic $M$ series of complete symmetric functions and the $L =M^{-1}$ series of elementary symmetric functions. Our main technical tool is that of Hopf algebras, and our main result is the derivation of a coproduct for any Schur function series obtained by plethysm from another such series. Therefrom one easily obtains $π$-generalized Newell-Littlewood formulae, and the algebra of the formal group characters of these subgroups is established. Concrete examples and extensive tabulations are displayed for $H_{1^3}$, $H_{21}$, and $H_{3}$, showing their involved and nontrivial representation theory. The nature of the subgroups is shown to be in general affine, and in some instances non reductive. We discuss the complexity of the coproduct formula and give a graphical notation to cope with it. We also discuss the way in which the group branching laws can be reinterpreted as twisted structures deformed by highly nontrivial 2-cocycles. The algebra of subgroup characters is identified as a cliffordization of the algebra of symmetric functions for GL(n) formal characters. Modification rules are beyond the scope of the present paper, but are briefly discussed.
description: 40 pages, uses pstricks, dedicated to Brian G. Wybourne
The Importance of Classification to Business Model Research
Creators: name: Lambert, Susan
Publisher: name: Journal of Business Models
Year: 2015

description: Purpose: To bring to the fore the scientific significance of classification and its role in business model theory building. To propose a method by which existing classifications of business models can be analyzed and new ones developed.

Design/Methodology/Approach: A review of the scholarly literature relevant to classifications of business models is presented along with a brief overview of classification theory applicable to business model research. Existing business model classifications are evaluated in terms of their propensity to contribute to theory building and a method for designing classifications schemes is proposed.

Findings: Little attention has been paid to the rationale underlying the design of business model classifications and often there is no explicit consideration of the suitability of the classification for its intended purpose. Each classification contributes to the understanding of business models in practice but there is a dearth of taxonomical research that can facilitate progression of business model research towards theorizing.

Originality/Value: This paper addresses the research element of classification that is largely overlooked yet is crucial for business model theory building. The nature of business model classifications is examined in the light of classification philosophies and a structured method of classification design is proposed. A case is made for the development of a general classification of business models that can facilitate the progression of business model
research towards theory building.
description: Journal of Business Models, Vol 3 No 1 (2015): Journal of Business Models
Irreversible Performance of a Quantum Harmonic Heat Engine
Creators: name: Rezek, Yair
name: Kosloff, Ronnie
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The unavoidable irreversible losses of power in a heat engine are found to be of quantum origin. Following thermodynamic tradition a model quantum heat engine operating by the Otto cycle is analyzed. The working medium of the model is composed of an ensemble of harmonic oscillators. A link is established between the quantum observables and thermodynamical variables based on the concept of canonical invariance. These quantum variables are sufficient to determine the state of the system and with it all thermodynamical variables. Conditions for optimal work, power and entropy production show that maximum power is a compromise between the quasistatic limit of adiabatic following on the compression and expansion branches and a sudden limit of very short time allocation to these branches. At high temperatures and quasistatic operating conditions the efficiency at maximum power coincides with the endoreversible result. The optimal compression ratio varies from the square root of the temperature ratio in the quasistatic limit where their reversibility is dominated by heat conductance to the temperature ratio to the power of 1/4 in the sudden limit when the irreversibility is dominated by friction. When the engine deviates from adiabatic conditions the performance is subject to friction. The origin of this friction can be traced to the noncommutability of the kinetic and potential energy of the working medium.
description: 25 pages, 7 figures. Revision added explicit heat-transfer expression and extended the discussion on the quantum origin of friction
Business Models for NFC based mobile payments
Creators: name: Sang Un Chae, Johannes
name: Hedman, Jonas
Publisher: name: Journal of Business Models
Year: 2015

description: Purpose: The purpose of the paper is to develop a business model framework for NFC based mobile payment solutions consisting of four mutually interdepended components: the value service, value network, value architecture, and value finance.

Design: Using a comparative case study method, the paper investigates Google Wallet and ISIS Mobile Wallet and their underlying business models.

Findings: Google Wallet and ISIS Mobile Wallet are focusing on providing an enhanced customer experience with their mobile wallet through a multifaceted value proposition. The delivery of its offering requires cooperation from multiple stakeholders and the creation of an ecosystem. Furthermore, they focus on the scalability of their value propositions.

Originality / value: The paper offers an applicable business model framework that allows practitioners and academics to study current and future mobile payment approaches.
description: Journal of Business Models, Vol 3 No 1 (2015): Journal of Business Models
Accounting for Business Models: Increasing the Visibility of Stakeholders
Creators: name: Haslam, Colin
name: Tsitsianis, Nick
name: Andersson, Tord
name: Gleadle, Pauline
Publisher: name: Journal of Business Models
Year: 2015

description: Purpose: This paper conceptualises a firm’s business model employing stakeholder theory as a central organising element to help inform the purpose and objective(s) of business model financial reporting and disclosure.

Framework: Firms interact with a complex network of primary and secondary stakeholders to secure the value proposition of a firm’s business model. This value proposition is itself a complex amalgam of value creating, value capturing and value manipulating arrangements with stakeholders. From a financial accounting perspective the purpose of the value proposition for a firm’s business model is to sustain liquidity and solvency as a going concern.

Findings: This article argues that stakeholder relations impact upon the financial viability of a firm’s business model value proposition. However current financial reporting by function of expenses and the central organising objectives of the accounting conceptual framework conceal firm-stakeholder relations and their impact on reported financials.

Practical implications: The practical implication of our paper is that ‘Business Model’ financial reporting would require a reorientation in the accounting conceptual framework that defines the objectives and purpose of financial reporting. This reorientation would involve  reporting about stakeholder relations and their impact on a firms financials not simply reporting financial information to ‘investors’.

Social Implications: Business model financial reporting has the potential to be stakeholder inclusive because the numbers and narratives reported by firms in their annual financial statements will increase the visibility of stakeholder relations and how these are being managed.

What is original/value of paper: This paper’s original perspective is that it argues that a firm’s business model is structured out of stakeholder relations. It presents the firm’s value proposition as the product of value creating, capturing and manipulating firm-stakeholder relationships. The originality of this paper is that it calls into question the nature of the accounting conceptual framework. Business model financial reporting will involve reporting about material stakeholder relationships and how these impact upon the viability of a firm’s business model value proposition.
description: Journal of Business Models, Vol 3 No 1 (2015): Journal of Business Models
Agricultural policy (AP2011) Reform and the WTO: Potential Impacts on Swiss Agriculture
Creators: name: Ferjani, Ali
name: Ferjani, Ali
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Livestock Production/Industries
subject: Partial equilibrium model
subject: simulation
subject: AP2011
subject: WTO
subject: dairy industry

description: This article analyses the impact of the planned Swiss package of agricultural policy measures AP2011 and the tariff reductions scheduled as part of the WTO Doha Round, with special emphasis on effects in the dairy and meat sector. The simulations are carried out using an extended partial equilibrium model. This article discusses the anticipated impact of changing structural conditions on production, processing, consumption, prices and exports in the milk market. If account is taken of the Bilateral Agreements between Switzerland and the EU providing for liberalisation of the common cheese market, raw milk production increases by 10.5 %, whereas the milk price shows a significant drop to around 60 centimes per kilogram of milk. The abolition of subsidies will result in comparatively more milk being processed into high value-added products. All WTO scenarios have a negative impact on the dairy and meat market. The results reveal that Pork meat is sensitive to the tariff reduction formula under the WTO draft proposal.
Value Proposition Design: How to create products and services customers want
Creators: name: Kyhnau, Jan
name: Nielsen, Christian
Publisher: name: Journal of Business Models
Year: 2015

description: Leading on from the bestselling 2010 book Business Model Generation (VPD), Alexander Osterwalder and Yves Pigneur, this time flanked by Greg Bernarda, Alan Smith and Trish Papadakos, set out to further the intricate link between business models and value propositions in the 2014 publication Value Proposition Design (VPD). This is a Book Review on the new publication.
description: Journal of Business Models, Vol 3 No 1 (2015): Journal of Business Models
Fractional black $p$-branes on orbifold ${\mathbb C}^n/{\mathbb Z}_n$
Creators: name: Nitta, Muneto
name: Uzawa, Kunihito
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The recent discovery of an explicit solution of a black hole on the resolved orbifold ${\mathbb C}^n/{\mathbb Z}_n$ makes it possible to investigate the existence of $p$-branes on the orbifold. In particular, it is possible with reasonable precision to verify the prediction that an M2-brane on ${\mathbb C}^4/{\mathbb Z}_4$ in eleven dimensions and a D3-brane on ${\mathbb C}^3/{\mathbb Z}_3$ in ten dimensions have a family of black $p$-branes on the orbifold ${\mathbb C}^n/{\mathbb Z}_n$. These solutions are extremal and have regular horizons $S^{2n-1}/{\mathbb Z}_n$ without any naked singularity, with near horizon geometries AdS${}_{p+2}\times S^{2n-1}/{\mathbb Z}_n$.
description: 13 pages, Journal version
Form factors in RQM approaches: constraints from space-time translations
Creators: name: Desplanques, Bertrand
name: Dong, Yu Bing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Different relativistic quantum mechanics approaches have recently been used to calculate properties of various systems, form factors in particular. It is known that predictions, which most often rely on a single-particle current approximation, can lead to predictions with a very large range. It was shown that accounting for constraints related to space-time translations could considerably reduce this range. It is shown here that predictions can be made identical for a large range of cases. These ones include the following approaches: instant form, front form, and "point-form" in arbitrary momentum configurations and a dispersion-relation approach which can be considered as the approach which the other ones should converge to. This important result supposes both an implementation of the above constraints and an appropriate single-particle-like current. The change of variables that allows one to establish the equivalence of the approaches is given. Some points are illustrated with numerical results for the ground state of a system consisting of scalar particles.
description: 37 pages, 7 figures; further comments in ps 16 and 19; further references; modified presentation of some formulas; corrected misprints
Constructing a Business Model Taxonomy: Using statistical tools to generate a valid and reliable business model taxonomy
Creators: name: Groth, Pernille
name: Nielsen, Christian
Publisher: name: Journal of Business Models
Year: 2015

description: Purpose: The paper proposes a research design recipe capable of leading to future business model taxonomies and discusses the potential benefits and implications of achieving this goal.

Design/Methodology/Approach: The paper provides a review of relevant scholarly literature about business models to clarify the subject as well as highlighting the importance of past studies of business model classifications. In addition it reviews the scholarly literature on relevant methodological approaches, such as cluster analysis and latent class analysis, for constructing a business model taxonomy. The two literature streams combined to form the basis for the suggested recipe.

Findings: The paper highlights the need for further large-scale empirical studies leading to a potential business model taxonomy, a topic that is currently under-exposed even though its merits are highlighted continuously in the contemporary literature. However, the research stream in relation to a business model taxonomy also needs a sound starting point in order to ensure valid and reliable outcomes. In this paper a research design for conducting such studies is presented and obstacles, which need to be overcome to ensure the quality of business model taxonomy studies in the future are identified.

Originality/Value: The paper highlights the benefits and potential implications of designing business model taxonomy studies and makes the case for ensuring the quality of future studies relating to e.g. performance. Reviewing the literature on both business models and methodological theories achieves this.
description: Journal of Business Models, Vol 3 No 1 (2015): Journal of Business Models
Dying of the Light: An X-ray Fading Cold Quasar at z ~ 0.405
Creators: name: Cooke, Kevin C.
name: Kirkpatrick, Allison
name: Estrada, Michael
name: Messias, Hugo
name: Peca, Alessandro
name: Cappelluti, Nico
name: Ananna, Tonima Tasnim
name: Brewster, Jason
name: Glikman, Eilat
name: LaMassa, Stephanie
name: Leung, T. K. Daisy
name: Trump, Jonathan R.
name: Turner, Tracey Jane
name: Urry, C. Megan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Cold quasars are a rare subpopulation observed to host unobscured, X-ray luminous active galactic nuclei (AGN) while also retaining a cold gas supply fueling high star formation rates. These objects are interpreted as AGN early in their evolution. We present new SOFIA HAWC+ far-infrared observations, FUV-FIR photometry, and optical spectroscopy to characterize the accretion and star formation behavior in a cold quasar at z ~ 0.405 (CQ 4479). CQ 4479 is a starburst galaxy with a predominantly young stellar population and a high gas mass fraction of ~50-70%. The AGN component has yet to become the dominant component of the FIR emission. We also find AGN bolometric luminosity that varies as a function of observation method and AGN region probed. Finally, we identify a candidate outflow feature corroborating the hypothesis that cold quasars have energetic feedback. This object presents an intriguing look into the early stages of AGN feedback and probes the rare phase where an AGN and cold gaseous component co-exist.
description: 10 pages, 8 figures, Published in ApJ 6-November-2020
High speed contouring control for machine tool drives
Creators: name: Erkorkmaz, Kaan
Publisher: name: University of British Columbia
Year: 2009

description: High speed machining technology has been rapidly adopted in aerospace, die and mold manufacturing industry for its high productivity. High speed machine tools require a rigid structure, thermally and dynamically stable spindles with high power, and fast feed drives which are able to track complex tool paths accurately at feed speeds up to 40 [m/min] with high accelerations over 1 [g]. The design of trajectory generation and control algorithms play a crucial role in realizing the accuracy requirement for high speed feed motion. This thesis presents a systematic approach to designing a smooth trajectory generation algorithm and a high performance control system for machine tool feed drives. A jerk limited trajectory generation algorithm employing trapezoidal acceleration profiles is developed to minimize discontinuity and harmonics in actuation force. The original position commands with varying interpolation period are re-sampled at control loop frequency via fifth order polynomials. The generated smooth trajectory commands for individual axes are delivered to a control system designed for accurate tracking and disturbance robustness. Axis dynamics are first stabilized via pole-placement control. Overall bandwidth is increased with a zero phase error tracking controller to minimize tracking errors. Disturbance rejection and parameter variation robustness is achieved using a Kalman filter based disturbance observer. Friction forces are compensated for in feedforward to improve the tracking accuracy at sharp corners and circular quadrants. On top of these, the contour error is also estimated in real-time and used in cross-coupling control via PID controllers, to achieve additional contouring accuracy in the presence of cutting forces. The effectiveness of the proposed trajectory generation and control scheme is verified both in simulations and in experiments, where a high speed x-y table driven by linear motors is used.
Excited hadrons as a signal for quark-gluon plasma formation
Creators: name: Layek, Biswanath
name: Srivastava, Ajit M.
name: Sanyal, Soma
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: At the quark-hadron transition, when quarks get confined to hadrons, certain orbitally excited states, namely those which have excitation energies above the respective $L = 0$ states of the same order as the transition temperature $T_c$, may form easily because of thermal velocities of quarks at the transition temperature. We propose that the ratio of multiplicities of such excited states to the respective $L = 0$ states can serve as an almost model independent signal for the quark-gluon plasma formation in relativistic heavy-ion collisions. For example, the ratio $R^*$ of multiplicities of $D_{SJ}^{*\pm}(2317)(J^P = 0^+)$ and $D_S^{*\pm}(2112)(J^P = 1^-)$ when plotted with respect to the center of mass energy of the collision $\sqrt{s}$ (or vs. centrality/number of participants), should show a jump at the value of $\sqrt{s}$ beyond which the QGP formation occurs. This should happen irrespective of the shape of the overall plot of $R^*$ vs. $\sqrt{s}$. Recent data from RHIC on $Λ^*/Λ$ vs. N$_{part}$ for large values of N$_{part}$ may be indicative of such a behavior, though there are large error bars. We give a list of several other such candidate hadronic states.
description: 19 pages, RevTex, no figures, minor changes
Separable subgroups of mapping class groups
Creators: name: Leininger, Christopher J.
name: McReynolds, D. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F38 (Primary) 20F28, 20F18 (Secondary)

description: We investigate the separability of several well known classes of subgroups of the mapping class group of a surface.
description: 11 pages. Minor typos corrected, references added
Ligand unbinding mechanisms and kinetics for T4 lysozyme mutants from tauRAMD simulations
Creators: name: Nunes-Alves, Ariane
name: Kokh, Daria B.
name: Wade, Rebecca C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The protein-ligand residence time, tau, influences molecular function in biological networks and has been recognized as an important determinant of drug efficacy. To predict tau, computational methods must overcome the problem that tau often exceeds the timescales accessible to conventional molecular dynamics (MD) simulation. Here, we apply the tau-Random Acceleration Molecular Dynamics (tauRAMD) method to a set of kinetically characterized complexes of T4 lysozyme mutants with engineered binding cavities. tauRAMD yields relative ligand dissociation rates in good accordance with experiments and thereby allows a comprehensive characterization of the ligand egress routes and determinants of tau. Although ligand dissociation by multiple egress routes is observed, we find that egress via the predominant route determines the value of tau. We also find that the presence of metastable states along egress pathways slows down protein-ligand dissociation. These physical insights could be exploited in the rational optimization of the kinetic properties of drug candidates.
description: Changes in the format of the manuscript
Bose-Einstein condensation on a superconducting atom chip
Creators: name: Roux, C.
name: Emmert, A.
name: Lupascu, A.
name: Nirrengarten, T.
name: Nogues, G.
name: Brune, M.
name: Raimond, J. -M.
name: Haroche, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have produced a Bose-Einstein condensate (BEC) on an atom chip using only superconducting wires in a cryogenic environment. We observe the onset of condensation for 10^4 atoms at a temperature of 100 nK. This result opens the way for studies of atom losses and decoherence in a BEC interacting with a superconducting surface. Studies of dipole-blockade with long-lived Rydberg atoms in a small and dense atomic sample are underway.
description: 4 pages, 4 figures. Accepted for publication in Europhysics Letters
Stiefel Liquids: Possible Non-Lagrangian Quantum Criticality from Intertwined Orders
Creators: name: Zou, Liujun
name: He, Yin-Chen
name: Wang, Chong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a new type of quantum liquids, dubbed Stiefel liquids, based on $2+1$ dimensional nonlinear sigma models on target space $SO(N)/SO(4)$, supplemented with Wess-Zumino-Witten terms. We argue that the Stiefel liquids form a class of critical quantum liquids with extraordinary properties, such as large emergent symmetries, a cascade structure, and nontrivial quantum anomalies. We show that the well known deconfined quantum critical point and $U(1)$ Dirac spin liquid are unified as two special examples of Stiefel liquids, with $N=5$ and $N=6$, respectively. Furthermore, we conjecture that Stiefel liquids with $N>6$ are non-Lagrangian, in the sense that under renormalization group they flow to infrared (conformally invariant) fixed points that cannot be described by any renormalizable continuum Lagrangian. Such non-Lagrangian states are beyond the paradigm of parton gauge mean-field theory familiar in the study of exotic quantum liquids in condensed matter physics. The intrinsic absence of (conventional or parton-like) mean-field construction also means that, within the traditional approaches, it will be difficult to decide whether a non-Lagrangian state can actually emerge from a specific UV system (such as a lattice spin system). For this purpose we hypothesize that a quantum state is emergible from a lattice system if its quantum anomalies match with the constraints from the (generalized) Lieb-Schultz-Mattis theorems. Based on this hypothesis, we find that some of the non-Lagrangian Stiefel liquids can indeed be realized in frustrated quantum spin systems, for example, on triangular or Kagome lattice, through the intertwinement between non-coplanar magnetic orders and valence-bond-solid orders.
description: A summary of results can be found on pages 4-6
Periodic long-term X-ray and radio variability of Cygnus X-1
Creators: name: Lachowicz, Pawel
name: Zdziarski, Andrzej A.
name: Schwarzenberg-Czerny, Alex
name: Pooley, Guy G.
name: Kitamoto, Shunji
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of long-term periodic variability of Cyg X-1 using the method of multiharmonic analysis of variance (mhAoV) applied to available monitoring data since 1969, in X-rays from Vela 5B, Ariel 5, Ginga, CGRO and RXTE satellites and in radio from the Ryle and Green Bank telescopes. We confirm a number of previously obtained results, and, for the first time, find an orbital modulation at 15 GHz in the soft state and show the detailed non-sinusoidal shape of that modulation in the hard state of both the 15-GHz emission and the X-rays from the RXTE/ASM. We find the CGRO/BATSE data are consistent with the presence of a weak orbital modulation, in agreement with its theoretical modelling as due to Compton scattering in the companion wind. We then confirm the presence of a ~150-d superorbital period in all of the data since ~1976, finding it in particular for the first time in the Ariel 5 data. Those data sets, covering >65 superorbital cycles, show a remarkable constancy of both the period and the phase. On the other hand, we confirm the presence of a ~290-d periodicity in the 1969-1979 Vela 5B data, indicating a switch from that period to its first harmonic at some time
description: MNRAS, in press
A business model design framework for viability; a business ecosystem approach
Creators: name: D’Souza, Austin
name: Wortmann, Hans
name: Huitema, George
name: Velthuijsen, Hugo
Publisher: name: Journal of Business Models
Year: 2015

description: Purpose: To facilitate the design of viable business models by proposing a novel business model design framework for viability.

Design: A design science research method is adopted to develop a business model design framework for viability. The business model design framework for viability is demonstrated by using it to design a business model for an energy enterprise. The aforementioned framework is validated in theory by using expert opinion.

Findings: It is difficult to design viable business models because of the changing market conditions, and competing interests of stakeholders in a business ecosystem setting. Although the literature on business models provides guidance on designing viable business models, the languages (business model ontologies) used to design business models largely ignore such guidelines. Therefore, we propose a business model design framework for viability to overcome the identified shortcomings. The theoretical validation of the business model design framework for viability indicates that it is able to successfully bridge the identified shortcomings, and it is able to facilitate the design of viable business models. Moreover, the validation of the framework in practice is currently underway.

Originality / value: Several business model ontologies are used to conceptualise and evaluate business models. However, their rote application will not lead to viable business models, because they largely ignore vital design elements, such as design principles, configuration techniques, business rules, design choices, and assumptions. Therefore, we propose and validate a novel business model design framework for viability that overcomes the aforementioned shortcomings.
description: Journal of Business Models, Vol 3 No 2 (2015): Journal of Business Models
Hadronic mass and q^2 moments of charmless semileptonic B decay distributions
Creators: name: Gambino, Paolo
name: Ossola, Giovanni
name: Uraltsev, Nikolai
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report OPE predictions for hadronic mass and q^2 moments in inclusive semileptonic B decays without charm, taking into account experimental cuts on the charged lepton energy and on the hadronic invariant mass, and address the related theoretical uncertainty.
description: 16 pages, 1 figure; v3: we have corrected a mistake in the code that produced the numerical results; tables replaced, small changes in the text
Transcription of the narration of Reel #4 (collection LA 256)
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio files VP-280717-04a/c/e: transcription of VP-190317-05 (narration of Reel #4 from the LA 256 collection at SCOIL, one of six reels of 8mm film created by Verdena in the 1960s, featuring scenes of everyday life around Hoopa Valley as well as Brush Dances), from 15:12 to 20:16. Due to re-numbering, Reel #4 has been assigned the CLA item number LA 256.043.
title: Overlay Recommendations for I 64:
title: Rowan, Carter, and Boyd Counties
titleType: Subtitle
Creators: name: Sharpe, Gary W.
name: Southgate, Herbert F.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1980
Subjects: subject: Transportation Engineering

description: A method was developed in 1978 for designing asphaltic concrete overlays for flexible pavements. This procedure utilizes Kentucky's theoretical flexible pavement design curves, estimates of pavement fatigue from traffic data, estimates of subgrade strengths, and estimates of the structural capacity of the existing pavement. Overlay designs were recommended for the asphaltic concrete pavement sections of I 64 in Rowan, Carter, and Boyd Counties. Road Rater deflection data were used to estimate the subgrade strength and the effective worth of the pavement structures. Pavement rutting and roughness were also considered in determining the final overlay thicknesses.
Absolute determination of the single-photon optomechanical coupling rate via a Hopf bifurcation
Creators: name: Piergentili, Paolo
name: Li, Wenlin
name: Natali, Riccardo
name: Vitali, David
name: Di Giuseppe, Giovanni
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We establish a method for the determination of the single-photon optomechanical coupling rate, which characterizes the radiation pressure interaction in an optomechanical system. The estimation of the rate with which a mechanical oscillator, initially in a thermal state, undergoes a Hopf bifurcation, and reaches a limit cycle, allows us to determine the single-photon optomechanical coupling rate in a simple and consistent way. Most importantly, and in contrast to other methods, our method does not rely on knowledge of the system's bath temperature and on a calibration of the signal. We provide the theoretical framework, and experimentally validate this method, providing a procedure for the full characterization of an optomechanical system, which could be extended outside cavity optomechanics, whenever a resonator is driven into a limit cycle by the appropriate interaction with another degree of freedom.
The axis of evil
Creators: name: Land, Kate
name: Magueijo, Joao
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine previous claims for a preferred axis at $(b,l)\approx (60,-100)$ in the cosmic radiation anisotropy, by generalizing the concept of multipole planarity to any shape preference (a concept we define mathematically). Contrary to earlier claims, we find that the amount of power concentrated in planar modes for $\ell=2,3$ is not inconsistent with isotropy and Gaussianity. The multipoles' alignment, however, is indeed anomalous, and extends up to $\ell=5$ rejecting statistical isotropy with a probability in excess of 99.9%. There is also an uncanny correlation of azimuthal phases between $\ell=3$ and $\ell=5$. We are unable to blame these effects on foreground contamination or large-scale systematic errors. We show how this reappraisal may be crucial in identifying the theoretical model behind the anomaly.
description: Small corrections introduced
Interpretation of Dynamic Pavement Deflections
Creators: name: Sharpe, Gary W.
name: Southgate, Herbert F.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1980
Subjects: subject: Transportation Engineering

description: In 1977, a methodology was .developed to evaluate pavement performance using dynamic (Road Rater) deflections. Since then, additional research has resulted in modifications ill the procedures. This paper presents the procedures presently used to evaluate flexible pavement structures. Background information is included on various procedures used by others. A sample set of data is presented and evaluated. A discussion is included on how the analyses of dynamic pavement deflections can be used to design overlays and in pavement management.
Use of Economic Analyses and Dynamic Programming in the Selection of Projects for Resurfacing
Creators: name: Zegeer, Charles V.
name: Agent, Kenneth R.
name: Rizenbergs, Rolands L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1980
Subjects: subject: Transportation Engineering

description: The objective of this paper was to develop a dynamic programming procedure using economic analyses to assist in optimizing expenditures in pavement resurfacing programs. Benefit relationships were determined from expected accident reduction, improved comfort, time saving, fuel savings, and maintenance savings. The only cost input to the program was the resurfacing cost of each project.  Dynamic programming was adapted to the selection of projects for resurfacing in Kentucky. Over $8.4 million of additional user benefits would have been realized in 1976 if dynamic programming had been used in selecting projects. The benefit-cost ratio of sections selected for resurfacing by the present procedures was 3.21 compared to 4.22 if dynamic programming had been used.
Electron self-trapping and fluctuation density-of-states tail at the critical point
Creators: name: Auslender, M. I.
name: Katsnelson, M. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider electron self-trapping due to its interaction with order-parameter fluuctuations at the second-order phase-transition or critical point (for example, at the Curie temperature in magnetic or ferroelectric semiconductors). Using Feynman path integral approach the autolocalization energy and the size of the self-trapped state (fluctuon) are estimated. It is shown that the fluctuon states are connected with the Lifshitz tail of the electron density-of-states, the parameters of this tail being determined by the critical exponents.
description: 4 pages, revtex4, Phys. Rev. B, accepted
Mechanical and Engineering Properties of a Cherty Paleozoic Material
Creators: name: Deen, Robert C.
name: Allen, David L.
name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1983
Subjects: subject: Transportation Engineering

description: In September 1982, Research Report UKTRP-82-16 was issued to document the sampling of a cherty Paleozoic material from a test pit on Divide Cut Section 3A of the Tennessee-Tombigbee Waterway. Results of laboratory testing of the samples were also reported.  Subsequent to the issuance of Report UKTRP-82-16, additional testing and analyses have been completed. The purpose of this report is to document the results of those tests and analyses.
Evaluation of Asphaltic Pavements for Overlay Design
Creators: name: Deen, Robert C.
name: Southgate, Herbert F.
name: Sharpe, Gary W.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1983
Subjects: subject: Transportation Engineering

description: To evaluate projects involving approximately 200 route-miles of interstate and primary pavements in Kentucky and Tennessee in relatively short time frames, it was decided to test, analyze, and design overlays using test equipment (Road Rater) and procedures developed by the University of Kentucky Transportation Research Program. This paper presents the analysis methodology and the evaluation and overlay designs for selected projects, including the before-and-after analysis of milling on one project.  The Road Rater applies a dynamic sinusoidal loading of known force and frequency. The velocity of the vibration waves are measured by sensors and integrated electronically to obtain surface deflections . An analysis of the shape and magnitude of the deflection bowl permits an assessment of whether the structure is performing as anticipated or whether some component is significantly weaker than designed. Analyses permit the determination of the "behavioral" or effective thicknesses of the asphaltic concrete layers and the in-place subgrade moduli. Strip charts of effective thickness and subgrade strength (or alternatively, overlay thicknesses) along the length of a project permit delineation of the project into relatively uniform segments. The arithmetic mean and standard error are determined for each segment to estimate design parameters. The required overlay thickness is the difference between the total thickness required for new construction to carry the anticipated traffic and the behavioral thickness of the existing pavement.
WNTRAC: AI Assisted Tracking of Non-pharmaceutical Interventions Implemented Worldwide for COVID-19
Creators: name: Suryanarayanan, Parthasarathy
name: Tsou, Ching-Huei
name: Poddar, Ananya
name: Mahajan, Diwakar
name: Dandala, Bharath
name: Madan, Piyush
name: Agrawal, Anshul
name: Wachira, Charles
name: Samuel, Osebe Mogaka
name: Bar-Shira, Osnat
name: Kipchirchir, Clifton
name: Okwako, Sharon
name: Ogallo, William
name: Otieno, Fred
name: Nyota, Timothy
name: Matu, Fiona
name: Barros, Vesna Resende
name: Shats, Daniel
name: Kagan, Oren
name: Remy, Sekou
name: Bent, Oliver
name: Guhan, Pooja
name: Mahatma, Shilpa
name: Walcott-Bryant, Aisha
name: Pathak, Divya
name: Rosen-Zvi, Michal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The Coronavirus disease 2019 (COVID-19) global pandemic has transformed almost every facet of human society throughout the world. Against an emerging, highly transmissible disease with no definitive treatment or vaccine, governments worldwide have implemented non-pharmaceutical intervention (NPI) to slow the spread of the virus. Examples of such interventions include community actions (e.g. school closures, restrictions on mass gatherings), individual actions (e.g. mask wearing, self-quarantine), and environmental actions (e.g. public facility cleaning). We present the Worldwide Non-pharmaceutical Interventions Tracker for COVID-19 (WNTRAC), a comprehensive dataset consisting of over 6,000 NPIs implemented worldwide since the start of the pandemic. WNTRAC covers NPIs implemented across 261 countries and territories, and classifies NPI measures into a taxonomy of sixteen NPI types. NPI measures are automatically extracted daily from Wikipedia articles using natural language processing techniques and manually validated to ensure accuracy and veracity. We hope that the dataset is valuable for policymakers, public health leaders, and researchers in modeling and analysis efforts for controlling the spread of COVID-19.
description: Updated title (Artificial Intelligence => AI). Updated figures. Referenced the open-sourced code repository in Code Availability section. Updated figures in the Usage Notes section
On the Effects of Idiotypic Interactions for Recommendation Communities in Artificial Immune Systems
Creators: name: Cayzer, Steve
name: Aickelin, Uwe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: It has previously been shown that a recommender based on immune system idiotypic principles can out perform one based on correlation alone. This paper reports the results of work in progress, where we undertake some investigations into the nature of this beneficial effect. The initial findings are that the immune system recommender tends to produce different neighbourhoods, and that the superior performance of this recommender is due partly to the different neighbourhoods, and partly to the way that the idiotypic effect is used to weight each neighbours recommendations.
Elicitation of exclamatives and miratives
Creators: name: Parker, Verdena
name: Escamilla, Ramón
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-280717-05: Zevakhina's 2012 exclamatives questionnaire (n.d., "Exclamatives: A Questionnaire," based on the questionnaire in Natalia Zevakhina 2012, "The Syntax of Exclamative Constructions," Ph.D. Dissertation, Moscow State University, translated into English by Marina Rakhilin, URL: https://www.eva.mpg.de/lingua/tools-at-lingboard/pdf/Exclamatives_questionnaire.pdf), attempting in part to elicit use of miratives. Through #25.
The metallicity of the old open cluster NGC 6791
Creators: name: Gratton, Raffaele
name: Bragaglia, Angela
name: Carretta, Eugenio
name: Tosi, Monica
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have observed four red clump stars in the very old and metal-rich open cluster NGC 6791 to derive its metallicity, using the high resolution spectrograph SARG mounted on the TNG. Using a spectrum synthesis technique we obtain an average value of [Fe/H] = +0.47 (+/- 0.04, rms=0.08) dex. Our method was tested on mu Leo, a well studied metal-rich field giant. We also derive average oxygen and carbon abundances for NGC 6791 from synthesis of [O I] at 6300 A and C_2 at 5086 A, finding [O/Fe] =~ -0.3 and [C/Fe] =~ -0.2.
description: In press on ApJ
Probability distribution of residence times of grains in models of ricepiles
Creators: name: Pradhan, Punyabrata
name: Dhar, Deepak
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the probability distribution of residence time of a grain at a site, and its total residence time inside a pile, in different ricepile models. The tails of these distributions are dominated by the grains that get deeply buried in the pile. We show that, for a pile of size $L$, the probabilities that the residence time at a site or the total residence time is greater than $t$, both decay as $1/t(\ln t)^x$ for $L^ω \ll t \ll \exp(L^γ)$ where $γ$ is an exponent $ \ge 1$, and values of $x$ and $ω$ in the two cases are different. In the Oslo ricepile model we find that the probability that the residence time $T_i$ at a site $i$ being greater than or equal to $t$, is a non-monotonic function of $L$ for a fixed $t$ and does not obey simple scaling. For model in $d$ dimensions, we show that the probability of minimum slope configuration in the steady state, for large $L$, varies as $\exp(-κL^{d+2})$ where $κ$ is a constant, and hence $ γ= d+2$.
description: 13 pages, 23 figures, Submitted to Phys. Rev. E
Hauschild, Wolf-Dieter, Wilkens, Erwin, Kretschmar, Georg, Lohse, Eduard: Kirchliches Jahrbuch für die evangelische Kirche in Deutschland 1979
Creators: name: Krüger, Hanfried
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 34 Nr. 1 (1985): Ökumenische Rundschau, Band 34, Heft 1
Positivity in Multi-Field EFTs
Creators: name: Li, Xu
name: Xu, Hao
name: Yang, Chengjie
name: Zhang, Cen
name: Zhou, Shuang-Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the general method for obtaining full positivity bounds on multi-field effective field theories (EFTs). While the leading order forward positivity bounds are commonly derived from the elastic scattering of two (superposed) external states, we show that for a generic EFT containing 3 or more low-energy modes, this approach only gives incomplete bounds. We then identify the allowed parameter space as the dual to a spectrahedron, constructed from crossing symmetries of the amplitude, and show that finding the optimal bounds for a given number of modes is equivalent to a geometric problem: finding the extremal rays of a spectrahedron. We show how this is done analytically for simple cases, and numerically formulated as semidefinite programming (SDP) problems for more complicated cases. We demonstrate this approach with a number of well-motivated examples in particle physics and cosmology, including EFTs of scalars, vectors, fermions and gravitons. In all these cases, we find that the SDP approach leads to results that either improve the previous ones or are completely new. We also find that the SDP approach is numerically much more efficient.
description: 5 pages + refs + supplementary material, 5 figures; to appear in PRL