cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Binding energy of the positronium negative ion via dimensional scaling
Creators: name: Blinov, Nikita
name: Czarnecki, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We determine the binding energy of the negative positronium ion in the limits of one spatial dimension and of infinitely many dimensions. The numerical result for the one-dimensional ground state energy seems to be a rational number, suggesting the existence of an analytical solution for the wave function. We construct a perturbation expansion around the infinitely-dimensional limit to compute an accurate estimate for the physical three-dimensional case. That result for the energy agrees to five significant figures with variational studies.
description: 12 pages, 4 figures. Accepted for publication in Physical Review A
Entanglement in phase-space distribution for an anisotropic harmonic oscillator in noncommutative space
Creators: name: Patra, Pinaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The bi-partite Gaussian state, corresponding to an anisotropic harmonic oscillator in a noncommutative-space, is investigated with the help of the Simon's separability condition (generalized Peres-Horodecki criterion). It turns out that, in order to exhibit the entanglement between the noncommutative co-ordinates, the parameters (mass and frequency) have to satisfy an unique constraint equation. Exact solutions for the system are obtained after diagonalizing the model, keeping the intrinsic symplectic structure intact. It is shown that, the identification of the entangled degrees of freedom is possible by studying the Wigner quasiprobability distribution in phase-space. We have shown that the co-ordinates are entangled only with the conjugate momentum corresponding to other co-ordinates.
Dissipative continuous Euler flows
Creators: name: De Lellis, Camillo
name: Székelyhidi, László
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We show the existence of continuous periodic solutions of the 3D incompressible Euler equations which dissipate the total kinetic energy.
XXIII. Internationaler Kongress für Kunstgeschichte, Granada 3. 9. BIS 15. 9.1973
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 25 Nr. 11 (1972): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Project Poseidon: White Paper
Creators: name: Goh, Kheng Lim
name: De Silva, Rangika Thilan
name: Pasbakhsh, Pooria
name: Zivkovic, Vladimir
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 401609
subject: Polymers and plastics
classificationCode: 401102
subject: Environmentally sustainable engineering
classificationCode: 410503
subject: Groundwater quality processes and contaminated land assessment

description: The Poseidon project, a collaboration between SLINTEC, Monash University Malaysia, and Newcastle University UK and Singapore, introduces a patented portable water filtration device to provide clean drinking water to water-stressed communities. The research outlines a strategic roadmap emphasizing global outreach, technological advancements, educational partnerships, and commercialization to enhance the impact of water filtration solutions. Objectives include collaboration with international organizations, technological enhancements, educational partnerships, commercialization efforts, community engagement, and networking platforms. The research aims to contribute to global clean water initiatives by fostering innovative collaborations and advancements in water filtration technology.
Constrained second-order power corrections in HQET: $R(D^{(*)})$, $|V_{cb}|$, and new physics
Creators: name: Bernlochner, Florian U.
name: Ligeti, Zoltan
name: Papucci, Michele
name: Prim, Markus T.
name: Robinson, Dean J.
name: Xiong, Chenglu
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We postulate a supplemental power counting within the heavy quark effective theory, that results in a small, highly-constrained set of second-order power corrections, compared to the standard approach. We determine all $\bar{B} \to D^{(*)}$ form factors, both within and beyond the standard model to $\mathcal{O}(α_s/m_{c,b}, 1/m_{c,b}^2)$, under truncation by this power counting. We show that the second-order power corrections to the zero-recoil normalization of the $\bar{B} \to D^{(*)} l ν$ matrix elements ($l = e$, $μ$, $τ$) are fully determined by hadron mass parameters, and are in good agreement with lattice QCD (LQCD) predictions. We develop a parametrization of these form factors under the postulated truncation, that achieves excellent fits to the available LQCD predictions and experimental data, and we provide precise updated predictions for the $\bar{B} \to D^{(*)} τ\barν$ decay rates, lepton flavor universality violation ratios $R(D^{(*)})$, and the CKM matrix element $|V_{cb}|$. We point out some apparent errors in prior literature concerning the $\mathcal{O}(1/m_cm_b)$ corrections, and note a tension between commonly-used simplified dispersive bounds and current data.
description: 85 pages, 11 figures, 19 tables; published version; minor typos corrected
Deploying SIP-based Mobile Exam Application onto Next Generation Network testbed
Creators: name: Barnawi, Ahmed
name: Akkari, Nadine
name: Emran, Muhammad
name: Khan, Asif Irshad
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Over the past few years, mobile operators are faced with enormous challenges. Of such challenges, evolved user demands on personalized applications. Telecommunications industry as well as research community have paid enormous attention to Next Generation Networks (NGN) to address this challenge. NGN is perceived as a sophisticated platform where both application developers and mobile operators cooperate to develop user applications with enhanced quality of experience. The objective of this paper is twofold: first we present an introduction to state-of-the-art NGN testbed to be developed at KAU, and second we provide initial analysis for deploying a mobile application on top of the testbed.
description: 6 Pages, Electronics, Communications and Photonics Conference (SIECPC), 2011 Saudi International, Riyadh, KSA, 24-26 April 2011
MPEC 2023-M153 : 2023 MM5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 MM5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Reasoning about Action: An Argumentation - Theoretic Approach
Creators: name: Foo, N. Y.
name: Vo, Q. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present a uniform non-monotonic solution to the problems of reasoning about action on the basis of an argumentation-theoretic approach. Our theory is provably correct relative to a sensible minimisation policy introduced on top of a temporal propositional logic. Sophisticated problem domains can be formalised in our framework. As much attention of researchers in the field has been paid to the traditional and basic problems in reasoning about actions such as the frame, the qualification and the ramification problems, approaches to these problems within our formalisation lie at heart of the expositions presented in this paper.
Karin Hildebrandt, Tierknochenfunde aus der Stadt auf dem Magdalensberg bei Klagenfurt in Kärnten, V: Die Rinderknochen
Creators: name: Reichstein, Hans
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Karin Hildebrandt, Tierknochenfunde aus der Stadt auf dem Magdalensberg bei Klagenfurt in Kärnten, V: Die Rinderknochen. Kärntener Museumsschriften XLII. Klagenfurt 1966. 54 Seiten, 12 Bildtafeln und 11 Diagramme
description: Bonner Jahrbücher, Bd. 167.1967: Bonner Jahrbücher
(In)equivalence of Metric-Affine and Metric Effective Field Theories
Creators: name: Pradisi, Gianfranco
name: Salvio, Alberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter sector, where the connection does not carry additional dynamical fields. Among other things, this helps in identifying the complement set of effective field theories where there are other dynamical fields, which can have an interesting phenomenology. Within the latter set, we study in detail a vast class where the Holst invariant (the contraction of the curvature with the Levi-Civita antisymmetric tensor) is a dynamical pseudoscalar. In the Einstein-Cartan case (where the connection is metric compatible and fermions can be introduced) we also comment on the possible phenomenological role of dynamical dark photons from torsion and compute interactions of the above-mentioned pseudoscalar with a generic matter sector and the metric. Finally, we show that in an arbitrary realistic metric-affine theory featuring a generic matter sector the equivalence principle always emerges at low energies without the need to postulate it.
description: v3: matches published version, 31 pages, 1 figure
Thirty milliseconds in the life of a supercooled liquid
Creators: name: Scalliet, Camille
name: Guiselin, Benjamin
name: Berthier, Ludovic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We combine the swap Monte Carlo algorithm to long multi-CPU molecular dynamics simulations to analyse the equilibrium relaxation dynamics of model supercooled liquids over a time window covering ten orders of magnitude for temperatures down to the experimental glass transition temperature $T_g$. The analysis of \rev{several} time correlation functions coupled to spatio-temporal resolution of particle motion allow us to elucidate the nature of the equilibrium dynamics in deeply supercooled liquids. We find that structural relaxation starts at early times in rare localised regions characterised by a waiting time distribution that develops a power law near $T_g$. At longer times, relaxation events accumulate with increasing probability in these regions as $T_g$ is approached. This accumulation leads to a power-law growth of the linear extension of relaxed domains with time with a large, temperature-dependent dynamic exponent. Past the average relaxation time, unrelaxed domains slowly shrink with time due to relaxation events happening at their boundaries. Our results provide a complete microscopic description of the particle motion responsible for key experimental signatures of glassy dynamics, from the shape and temperature evolution of relaxation spectra to the core features of dynamic heterogeneity. They also provide a microscopic basis to understand the emergence of dynamic facilitation in deeply supercooled liquids and allow us to critically reassess theoretical descriptions of the glass transition.
description: 22 pages, 21 figures
Catch-Me-If-You-Can: The Overshoot Problem and the Weak/Inflation Hierarchy
Creators: name: Conlon, Joseph P.
name: Revello, Filippo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the overshoot problem in the context of post-inflationary string cosmology (in particular LVS). LVS cosmology features a long kination epoch as the volume modulus rolls down the exponential slope towards the final minimum, with an energy density that scales as $m_s^4$. This roll admits attractor tracker solutions, and if these are located the overshoot problem is solved. We show that, provided a sufficiently large hierarchy exists between the inflationary scale and the weak scale, this will always occur in LVS as initial seed radiation grows into the tracker solution. The consistency requirement of ending in a stable vacuum containing the weak hierarchy therefore gives a preference for high inflationary scales -- an anthropic argument, if one likes, for a large inflation/weak hierarchy. We discuss various origins, both universal and model-dependent, of the initial seed radiation (or matter). One particularly interesting case is that of a fundamental string network arising from brane inflation -- this may lead to an early epoch in which the universe energy density principally consists of gravitational waves, while an LVS fundamental string network survives into the present universe.
description: Added references, corrected typos and improved discussion on the validity of the EFT approach. Matches published version
Driving Electromoibility in the UK and Singapore
Creators: name: Newcastle University, Electromobility Workstream
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400205
subject: Hybrid and electric vehicles and powertrains
classificationCode: 440714
subject: Urban policy
classificationCode: 440704
subject: Environment policy
classificationCode: 440799
subject: Policy and administration not elsewhere classified

description: This report summarizes the Electromobility Symposium held in April 2023 in Singapore, which addressed issues related to electromobility in both Singapore and the UK. The symposium, titled "Accelerating Electromobility in the UK and Singapore: a shared challenge," was hosted by Newcastle University (UK) in Singapore in collaboration with the Energy Research Institute at Nanyang Technological University. Funding for the event was provided by the UK Government's Department for Science, Innovation, and Technology. The primary goal of the symposium was to identify opportunities for bilateral partnerships and research endeavors aimed at overcoming socio-economic, scientific, and technical barriers to the widespread adoption of electric vehicles (EVs) and other forms of electromobility. It also sought to highlight the potential for joint academic and industry collaborations between the UK and Singapore in the field of advanced electric transport research and the commercialization of related solutions. Over the course of three days, the symposium featured speakers from various sectors, including industry, government, and academia. With the participation of over 200 registered attendees, the event provided valuable insights from technological, economic, and policy perspectives. It employed plenary sessions, panel discussions, case study presentations, and breakout sessions, all aimed at fostering discussions and knowledge sharing regarding the acceleration of electromobility in both the UK and Singapore.
X-ray Modeling of η Carinae and WR140 from SPH Simulations
Creators: name: Russell, Christopher M. P.
name: Corcoran, Michael F.
name: Okazaki, Atsuo T.
name: Madura, Thomas I.
name: Owocki, Stanley P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The colliding wind binary (CWB) systems η Carinae and WR140 provide unique laboratories for X-ray astrophysics. Their wind-wind collisions produce hard X-rays that have been monitored extensively by several X-ray telescopes, including RXTE. To interpret these RXTE X-ray light curves, we model the wind-wind collision using 3D smoothed particle hydrodynamics (SPH) simulations. Adiabatic simulations that account for the absorption of X-rays from an assumed point source at the apex of the wind-collision shock cone by the distorted winds can closely match the observed 2-10keV RXTE light curves of both η Car and WR140. This point-source model can also explain the early recovery of η Car's X-ray light curve from the 2009.0 minimum by a factor of 2-4 reduction in the mass loss rate of η Car. Our more recent models relax the point-source approximation and account for the spatially extended emission along the wind-wind interaction shock front. For WR140, the computed X-ray light curve again matches the RXTE observations quite well. But for η Car, a hot, post-periastron bubble leads to an emission level that does not match the extended X-ray minimum observed by RXTE. Initial results from incorporating radiative cooling and radiatively-driven wind acceleration via a new anti-gravity approach into the SPH code are also discussed.
description: 5 pages, 3 figures, Proceedings of the 39th Li\'ege Astrophysical Colloquium, held in Li\`ege 12-16 July 2010, edited by G. Rauw, M. De Becker, Y. Naz\'e, J.-M. Vreux, P. Williams
State-Augmented Learnable Algorithms for Resource Management in Wireless Networks
Creators: name: NaderiAlizadeh, Navid
name: Eisen, Mark
name: Ribeiro, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider resource management problems in multi-user wireless networks, which can be cast as optimizing a network-wide utility function, subject to constraints on the long-term average performance of users across the network. We propose a state-augmented algorithm for solving the aforementioned radio resource management (RRM) problems, where, alongside the instantaneous network state, the RRM policy takes as input the set of dual variables corresponding to the constraints, which evolve depending on how much the constraints are violated during execution. We theoretically show that the proposed state-augmented algorithm leads to feasible and near-optimal RRM decisions. Moreover, focusing on the problem of wireless power control using graph neural network (GNN) parameterizations, we demonstrate the superiority of the proposed RRM algorithm over baseline methods across a suite of numerical experiments.
description: To appear in IEEE Transactions on Signal Processing. The implementation code is available at https://github.com/navid-naderi/StateAugmented_RRM_GNN
Estimating cell-type specific gene expression in mouse spinal cord injury through deconvolution of bulk RNA-seq data
Creators: name: Forenzo, Dylan
Publisher: name: No Publisher Supplied
Year: 2020

description: Advancements in single-cell RNA-Sequencing (scRNA-Seq) have allowed for the characterization of individual cell-type gene expression profiles. However, adult nerve cells exposed to a traumatic injury, such as cells in the spinal cord, are difficult to keep alive and viable for scRNA-Seq after isolation, making it difficult to study individual cell-type response to injury. Here, we use computational methods to deconvolve bulk RNA-Seq data obtained from mixtures of cells in the injured mouse spinal cord into individual cell types using healthy mouse scRNA-Seq Data. Through this deconvolution, we deduce that the mixtures mainly consist of neurons, oligodendrocytes, and astrocytes which make up approximately 54%, 24%, and 16% of the total cell population, respectively. These cell proportions and the differential gene expression between mixtures are then used to estimate the changes in cell-type specific gene expression between experimental conditions. The resulting gene expression profiles are then compared in a differential gene expression analysis (DGE) to provide evidence of the biological effects of gene therapies on neuron, oligodendrocyte, and microglia cell populations. Through the DGE analysis, we identified an average of 650 differentially expressed genes in neurons, 147 in oligodendrocytes, and 40 in microglia across experimental conditions. This approach provides an accessible and useful method for identifying the gene expression profiles of various cell-types after injury.
Optimization and knock modelling of a gas fueled spark ignition engine
Creators: name: Alizadeh Attar, Alireza
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: TJ787 .A55 1997
subject: Combustion--Mathematical models.
subject: Internal comustion engines--Knock.
subject: Automobiles - Motors - Knock

description: Bibliography: p. 215-231
Control of Oscillatory Temperature Field in a Building via Damping Assignment to Nonlinear Koopman Mode
Creators: name: Susuki, Yoshihiko
name: Eto, Kohei
name: Hiramatsu, Naoto
name: Ishigame, Atsushi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper addresses a control problem on air-conditioning systems in buildings that is regarded as a control practice of nonlinear distributed-parameter systems. Specifically, we consider the design of a controller for suppressing an oscillatory response of in-room temperature field. The main idea in this paper is to apply the emergent theory of Koopman operator and Koopman mode decomposition for nonlinear systems, and to formulate a technique of damping assignment to a nonlinear Koopman mode in a fully data-driven manner. Its effectiveness is examined by numerical simulations guided by measurement of a practical room space.
description: 15 pages, 6 figures
Homogeneous Symplectic Spaces and Central Extensions
Creators: name: Beckett, Andrew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Symplectic Geometry (math.SG)
subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D20, 22E60

description: We summarise recent work (arXiv:2203.07405 [math.SG]) on the classical result of Kirillov that any simply-connected homogeneous symplectic space of a connected group $G$ is a hamiltonian $\widehat{G}$-space for a one-dimensional central extension $\widehat{G}$ of $G$, and is thus (by a result of Kostant) a cover of a coadjoint orbit of $\widehat{G}$. We emphasise that existing proofs in the literature assume that $G$ is simply-connected and that this assumption can be removed by application of a theorem of Neeb. We also interpret Neeb's theorem as relating the integrability of one-dimensional central extensions of Lie algebras to the integrability of an associated Chevalley--Eilenberg 2-cocycle.
description: 7 pages, submitted to International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering, IHP, Paris, July 18-22, 2022
Behavior of [S/Fe] in Very Metal-Poor Stars from the S I 1.046 micron Lines Revisited
Creators: name: Takeda, Yoichi
name: Takada-Hidai, Masahide
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: With an aim of establishing how the [S/Fe] ratios behave at the very low metallicity regime down to [Fe/H] ~ -3, we conducted a non-LTE analysis of near-IR S ~ {\sc i} triplet lines (multiplet 3) at 10455-10459 A for a dozen of very metal-poor stars (-3.2
description: 7 pages, 5 figures, accepted for publication in PASJ, Vol. 64, No. 3 (2012)
Second order hydrodynamics based on effective kinetic theory and electromagnetic signals from QGP
Creators: name: Naik, Lakshmi J.
name: Sreekanth, V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the thermal dilepton and photon production from relativistic heavy ion collisions in presence of viscosities by employing the recently developed second order dissipative hydrodynamic formulation estimated within a quasiparticle description of thermal QCD (Quantum Chromo-Dynamics) medium. The sensitivity of shear and bulk viscous pressures to the temperature dependence of relaxation time is analyzed within one dimensional boost invariant expansion of quark gluon plasma (QGP).The dissipative corrections to the phase-space distribution functions upto first order in gradients are obtained from the Chapman-Enskog like iterative solution of effective Boltzmann equation in the relaxation time approximation. Thermal dilepton and photon production rates for QGP are calculated by employing this viscous modified distribution function. Yields of these particles are quantified for the longitudinal expansion of QGP with different temperature dependent relaxation times. Our analysis employing this second order hydrodynamic model indicates that the spectra of dileptons and photons gets enhanced by both bulk and shear viscosities and is well behaved. Also, these particle yields are found to be sensitive to relaxation time. Further, we do a comparison of these particle spectra with a standard hydrodynamic formulation.
description: 14 pages, 12 figures; to appear in Journal of Physics G
Grand Unification without Higgs Bosons
Creators: name: Barr, Stephen M.
name: Calmet, Xavier
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss how a model for the electroweak interactions without a Higgs could be embedded into a grand unified theory. The requirement of a non-trivial fixed point in the SU(2) sector of the weak interactions together with the requirement of the numerical unification of the gauge couplings leads to a prediction for the value of the SU(2) gauge coupling in the fixed point regime. The fixed point regime must be in the TeV region to solve the unitarity problem in the elastic scattering of W bosons. We find that the unification scale is at about 10^{14} GeV. Viable grand unified theories must thus conserve baryon number. We discuss how to build such a model without using Higgs bosons.
description: 8 pages, to be published in the proceedings devoted to the Scientific and Human Legacy of Julius Wess, initiated by the JW2011 Workshop, August 27 - 28, 2011, Donji Milanovac, Serbia
A synergistic model of organizational career development: bridging the gap between employees and organizations
Creators: name: Bernes, Kerry B.
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: HF5549.5.C35 B47 1997
subject: Additional Copy: 370 EDC 1998 BER in the DOUCETTE Education library
subject: Career development
subject: Career education
subject: Personnel management

description: Bibliography: p. 195-211
description: UARC
Demand-supply dynamics in tourism systems: a spatio-temporal GIS analysis. The Alberta ski industry case study
Creators: name: Bertazzon, Stefania
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: G155 .A4 B47 1998
subject: Tourism--Mathematical models
subject: Tourism-- Economic aspects--Alberta
subject: Ski resorts--Economic aspects--Alberta

description: Bibliography: p. 287-296
title: Effects of Indole Derivative IDC16 on Cell Proliferation, Transfection, and Alternative Splicing in Production of Lentiviral Vectors by Transient Co-Transfection
Creators: name: Mier, Nataly
Publisher: name: Utah State University
Year: 2023

description: Viruses can efficiently introduce genetic material into a variety of cells through cell infection. Therefore, viral vectors, defined as virus-based gene delivery systems, effectively transfer functional gene constructs to target cells. Among different viral vectors, lentiviral vectors are of interest due to the advantages offered to research and therapeutic applications. Low productivity of lentiviral vectors in mammalian producer cells and high production cost, however, remain barriers to the vectors’ routinary use, particularly in clinical settings.
Since most lentiviral vectors are derived from human immunodeficiency virus type I, their genome has been engineered to increase safety. Nevertheless, modifications of the lentiviral vector genetic material and the characteristics of producer mammalian cells have impacted the efficiency of the lentiviral vector production process. A better understanding of the production process at a molecular level may contribute to the design of safer and more cost-effective manufacture strategies.
This study analyzed the effect of splicing, an important molecular process in human immunodeficiency virus type I propagation, on lentiviral vector productivity; specifically, how modulation of this molecular process corresponds to the production of functional lentiviral vectors. Indole small molecules were previously reported to modify human immunodeficiency virus type I splicing. The similarity between lentiviral vectors and human immunodeficiency virus type I motivated examining whether indoles might also impact lentiviral vectors’ splicing and thus affect the production of functional lentiviral vectors. Results showed that the indole derivative alters the splicing of lentiviral vectors and negatively impacts functional lentiviral vector production. However, disruption by the indole of the early stages of the production process and producer cell cycle seems to have a larger effect on lentiviral vector yield than splicing. These results expand the understanding of splicing in lentiviral vector production in mammalian producer cells.
Solving Set Constraint Satisfaction Problems using ROBDDs
Creators: name: Hawkins, P. J.
name: Lagoon, V.
name: Stuckey, P. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper we present a new approach to modeling finite set domain constraint problems using Reduced Ordered Binary Decision Diagrams (ROBDDs). We show that it is possible to construct an efficient set domain propagator which compactly represents many set domains and set constraints using ROBDDs. We demonstrate that the ROBDD-based approach provides unprecedented flexibility in modeling constraint satisfaction problems, leading to performance improvements. We also show that the ROBDD-based modeling approach can be extended to the modeling of integer and multiset constraint problems in a straightforward manner. Since domain propagation is not always practical, we also show how to incorporate less strict consistency notions into the ROBDD framework, such as set bounds, cardinality bounds and lexicographic bounds consistency. Finally, we present experimental results that demonstrate the ROBDD-based solver performs better than various more conventional constraint solvers on several standard set constraint problems.
A practical guide to verifiable, evidence-based conservation: analysis
Creators: name: Funk, Stephan M
Publisher: name: Zenodo
Year: 2023
Subjects: conservation plan
conservation management
conservation standards
evidence-based conservation
data analysis

description: The integration of data analysis into conservation management is critical for informed decision-making and effective intervention. This necessitates a collaborative approach in the development of combined monitoring and analysis plans, ensuring both field experts and data analysts contribute to a coherent strategy. An effective data analysis plan must include clear research questions, defined data collection methods, appropriate statistical techniques, and robust data visualization. Strong data management practices and continuous analysis are essential to ensure data quality and facilitate adaptive management. By prioritizing these elements, conservation organizations can enhance their capacity to utilize data for evidence-based conservation, thereby improving the success rate of conservation outcomes.
Success and failure in the AEF style of warfare: artillery, 2 Division, and the search for solutions in 1918
Creators: name: Grotelueschen, Mark E.
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: D570.327.G76 1997
subject: World War, 1914-1918--Artillery operations.
subject: United States. Army Artillery, 2nd.

description: Bibliography: p. 157-163
A Taylor-like Expansion of a Commutator with a Function of Self-Adjoint, Pairwise Commuting Operators
Creators: name: Rasmussen, Morten Grud
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B47

description: Let $A$ be a $ν$-vector of self-adjoint, pairwise commuting operators and $B$ a bounded operator of class $C^{n_0}(A)$. We prove a Taylor-like expansion of the commutator $[B,f(A)]$ for a large class of functions $f\colon\mathbm{R}^ν\to \mathbm{R}$, generalising the one-dimensional result where $A$ is just a self-adjoint operator. This is done using almost analytic extensions and the higher-dimensional Helffer-Sjöstrand formula.
description: To appear in Math.Scand
AGN activity and the misaligned hot ISM in the compact radio elliptical NGC4278
Creators: name: Pellegrini, S.
name: Wang, J.
name: Fabbiano, G.
name: Kim, D. W.
name: Brassington, N. J.
name: Gallagher, J. S.
name: Trinchieri, G.
name: Zezas, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The analysis of a deep (579 ks) Chandra ACIS pointing of the elliptical galaxy NGC4278, which hosts a low luminosity AGN and compact radio emission, allowed us to detect extended emission from hot gas out to a radius of \sim 5 kpc, with a 0.5--8 keV luminosity of 2.4x10^{39} erg/s. The emission is elongated in the NE-SW direction, misaligned with respect to the stellar body, and aligned with the ionized gas, and with the Spitzer IRAC 8\mum non-stellar emission. The nuclear X-ray luminosity decreased by a factor of \sim 18 since the first Chandra observation in 2005, a dimming that enabled the detection of hot gas even at the position of the nucleus. Both in the projected and deprojected profiles, the gas shows a significantly larger temperature (kT=0.75 keV) in the inner \sim 300 pc than in the surrounding region, where it stays at \sim 0.3 keV, a value lower than expected from standard gas heating assumptions. The nuclear X-ray emission is consistent with that of a low radiative efficiency accretion flow, accreting mass at a rate close to the Bondi one; estimates of the power of the nuclear jets require that the accretion rate is not largely reduced with respect to the Bondi rate. Among possibile origins for the central large hot gas temperature, such as gravitational heating from the central massive black hole and a recent AGN outburst, the interaction with the nuclear jets seems more likely, especially if the latter remain confined, and heat the nuclear region frequently. The unusual hot gas distribution on the galactic scale could be due to the accreting cold gas triggering the cooling of the hot phase, a process also contributing to the observed line emission from ionize gas, and to the hot gas temperature being lower than expected; alternatively, the latter could be due to an efficiency of the type Ia supernova energy mixing lower than usually adopted.
description: 48 pages, submitted to ApJ
Topology of Born-Infeld AdS black holes in 4D novel Einstein-Gauss-Bonnet gravity
Creators: name: Yerra, Pavan Kumar
name: Bhamidipati, Chandrasekhar
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The topological classification of critical points of black holes in 4D Einstein-Gauss-Bonnet gravity coupled to Born-Infeld theory is investigated. Considered independently, Born-infeld corrections to the Einstein action alter the topological charge of critical points of the charged AdS black hole system, whereas the Gauss-Bonnet corrections do not. For the combined system though, the total topological charge of the Einstein-Gauss-Bonnet theory is unaltered in the presence of Born-Infeld coupling.
description: v1: 14 pages, 5 figures; v2: 17 pages, 7 figures, minor changes, matches published version
Quantumness of gravity in harmonically trapped particles
Creators: name: Kaku, Youka
name: Maeda, Shin'ya
name: Nambu, Yasusada
name: Osawa, Yuki
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This study investigates the quantumness of gravity under the setup of the atomic interferometry from the viewpoint of mass-energy equivalence. We evaluated interference visibility considering a particle with internal energy levels in a harmonic trapping potential. As per the result, for a spatially superposed gravitational source mass, interference visibility exhibits collapse and revival behavior, which implies that an initial separable internal state evolves to the entangled state with respect to the degrees of freedom of the center of mass, the internal energy levels, and the external source state. In particular, it does not exhibit revival behavior when gravity is treated as a quantum interaction, while it revives with a finite period for a semiclassical treatment of gravity. We also examined the temporal behavior of entanglement negativity and found that the nonrevival behavior of visibility reflects the creation of the entanglement between the internal energy state and the external source state which is uniquely induced by the quantum interaction of gravity in accordance with the weak equivalence principle.
description: 21 pages, accepted version in PRD
Determination of the levitation limits of dust particles within the sheath in complex plasma experiments
Creators: name: Douglass, Angela
name: Land, Victor
name: Qiao, Ke
name: Matthews, Lorin
name: Hyde, Truell
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Experiments are performed in which dust particles are levitated at varying heights above the powered electrode in a RF plasma discharge by changing the discharge power. The trajectories of particles dropped from the top of the discharge chamber are used to reconstruct the vertical electric force acting on the particles. The resulting data, together with the results from a selfconsistent fluid model, are used to determine the lower levitation limit for dust particles in the discharge and the approximate height above the lower electrode where quasineutrality is attained, locating the sheath edge. These results are then compared with current sheath models. It is also shown that particles levitated within a few electron Debye lengths of the sheath edge are located outside the linearly increasing portion of the electric field.
The 'PAMELA anomaly' indicates a nearby cosmic ray accelerator
Creators: name: Mertsch, Philipp
name: Sarkar, Subir
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We discuss the recently observed `excesses' in cosmic ray electron and positron fluxes which have been widely interpreted as signals of dark matter. By considering the production and acceleration of secondary electrons and positrons in nearby supernova remnants, we predict an additional, harder component that becomes dominant at high energies. The unknown spatial distribution of the supernova remnants introduces a stochastic uncertainty which we estimate analytically. Fitting the prediction for different source distributions to the total electron + positron flux measured by Fermi--LAT fixes all free parameters and allows us to `postdict' the rise in the positron fraction seen by PAMELA. A similar rise in the B/C ratio is predicted at high energies.
description: 9 pages, 6 figures; accepted for the publication in the proceedings of the ICATPP Conference on Cosmic Rays for Particle and Astroparticle Physics, Villa Olmo (Como), Oct. 2010
Old and New Results on Alphabetic Codes
Creators: name: Bruno, Roberto
name: De Prisco, Roberto
name: Vaccaro, Ugo
Publisher: name: arXiv
Year: 2025
Subjects: subject: Information Theory (cs.IT)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: This comprehensive survey examines the field of alphabetic codes, tracing their development from the 1960s to the present day. We explore classical alphabetic codes and their variants, analyzing their properties and the underlying mathematical and algorithmic principles. The paper covers the fundamental relationship between alphabetic codes and comparison-based search procedures and their applications in data compression, routing, and testing. We review optimal alphabetic code construction algorithms, necessary and sufficient conditions for their existence, and upper bounds on the average code length of optimal alphabetic codes. The survey also discusses variations and generalizations of the classical problem of constructing minimum average length alphabetic codes. By elucidating both classical results and recent findings, this paper aims to serve as a valuable resource for researchers and students, concluding with promising future research directions in this still-active field.
description: Published in: Information Theory and Related Fields, Lecture Notes in Computer Science
Anacroneuria froehlichi Miguel & Almeida & Novaes & Bispo 2022, n. sp.
Creators: name: Miguel, Marina
name: Almeida, Lucas Henrique De
name: Novaes, Marcos Carneiro
name: Bispo, Pitágoras Da Conceição
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Anacroneuria
Anacroneuria froehlichi

description: Anacroneuria froehlichi n. sp. Miguel, Almeida & Bispo
(Figs. 11A–G)
 Material examined. BR, GO. Holotype male: Chapada dos Veadeiros, Alto Paraíso de Goiás, Ribeirão Couro, Cachoeira São Bento, 13.xii.2006, PCB (MZUSP). Paratypes: Chapada dos Veadeiros, Alto Paraíso de Goiás, Ribeirão Saltador, 12.xii.2006, PCB, 7 males (CLBA); Ribeirão Saltador, 12.xii.2006, PCB, 8 males (MZUSP); Loquinhas, 15.xii.2006, PCB, 1 male (MZUSP); Ribeirão Água Fria, 14°05'28.8"S 47°29'40.9"W, 16.xii.2006, PCB, 1 male (MZUSP).
 Morphometric data. Holotype male, anterior wing length: 11.5 mm; paratype males (n= 17), anterior wing length: 11.5–16.0 mm.
 Description. General color yellowish to ochraceous. Head and pronotum ochraceous; head with inconspicuous M-line, central frons darker, clypeus and occiput yellowish (Fig. 11A). Antennae ochraceous, scape with darker spot laterally. Palpi pale yellowish. Pronotum with posterior corners rounded (Fig. 11A). Wings with membranes ochraceous and conspicuous veins. Presence of 4 to 8 transverse veins between the medial and anterior cubital veins. Legs yellowish with darker stripe in distal part of the femur. Abdomen pale yellowish. Sternum IX with small bristles on posterior margin; hammer as a short truncate cone (Fig. 11D). Penial armature, in dorsal view (Fig. 11E), tapering gradually up to the level of distal part of the hooks where there is a rounded expansion, which subsequently narrows sharply in an elongated final process; in ventral view (Fig. 11F), with pair of large distal vesicles and with hooks regularly curved with tips pointed; in the lateral view (Fig. 11G), with the apex slightly inclined ventrally. Cerci ochraceous.
 Remarks. Anacroneuria froehlichi was collected in the streams of Chapada dos Veadeiros, northern Goiás state. This species has a color pattern common to several species of the genus. A. froehlichi has penial armature (in dorsal view) with an abruptly narrowed apex, forming a slender process. This penial armature shape of A. froehlichi is unique, easily distinguishing it from other species of the genus.
 Etymology. The name honors Claudio Gilberto Froehlich, a pioneer in Plecoptera research in South America.
description: Published as part of Miguel, Marina, Almeida, Lucas Henrique De, Novaes, Marcos Carneiro & Bispo, Pitágoras Da Conceição, 2022, Anacroneuria (Plecoptera: Perlidae) from Central Brazil: new species, new geographic records, and taxonomic notes, pp. 487-506 in Zootaxa 5162 (5) on page 502, DOI: 10.11646/zootaxa.5162.5.2, http://zenodo.org/record/6816755
Characterising the magnetic fields of the Herbig Ae/Be stars HD97048, HD150193, HD176386, and MWC480
Creators: name: Hubrig, S.
name: Schoeller, M.
name: Ilyin, I.
name: Cowley, C. R.
name: Mikulasek, Z.
name: Stelzer, B.
name: Pogodin, M. A.
name: Yudin, R. V.
name: Cure, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our knowledge of the presence and the role of magnetic fields in intermediate-mass pre-main-sequence stars remains very poor. We present the magnetic properties of four Herbig Ae/Be stars that have not been previously studied in detail. Our results for the three Herbig Ae/Be stars HD97048, HD150193, and HD176386 are based on multi-epoch low-resolution spectra obtained in spectropolarimetric mode with FORS2 mounted on the VLT. New high-resolution polarimetric spectra were obtained for MWC480 with the SOFIN spectrograph installed at the Nordic Optical Telescope. We discuss 41 FORS2 low-resolution observations of the Herbig Ae/Be stars HD97048, HD150193, and HD176386 and determine their rotational periods. Using stellar fundamental parameters and the longitudinal magnetic field phase curves, we place constraints on the magnetic field geometry. Three high-resolution circularly polarised SOFIN spectra obtained for MWC480 were measured using the moment technique where wavelength shifts between right- and left-hand side circularly polarised spectra are interpreted in terms of a longitudinal magnetic field . Our search for periodicities resulted in P=0.693d for HD97048, P=1.317d for HD150193, and P=0.899d for HD176386. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength B_d of several hundred Gauss. The longitudinal magnetic-field measurements of MWC480 reveal the presence of a strong kG field, which was undetected in our previous low-resolution polarimetric observations with FORS1. A weak magnetic field was detected in the circumstellar components of the Ca II H&K lines and the Na I D lines, indicating a complex interaction between the stellar magnetic field and the circumstellar environment.
description: 8 pages, 9 figures, 5 tables, accepted for publication in A&A
The imaginary girlfriend: a study of Margaret Atwood's The Handmaids' Tale, Cat's Eye, The Robber Bride, and Alias Grace
Creators: name: Adamo, Laura
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: PS8551 .T93 Z523 1998
subject: Feminism in literature
subject: Atwood, Margaret, 1939 - Criticism and interpretation

description: Bibliography: p. 184-193