cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Approximate hedging with proportional transaction costs in stochastic volatility models with jumps
Creators: name: Nguyen, Thai Huu
name: Pergamenschchikov, Serguei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: 91G20, 60G44

description: We study the problem of option replication under constant proportional transaction costs in models where stochastic volatility and jumps are combined to capture the market's important features. Assuming some mild condition on the jump size distribution we show that transaction costs can be approximately compensated by applying the Leland adjusting volatility principle and the asymptotic property of the hedging error due to discrete readjustments is characterized. In particular, the jump risk can be approximately eliminated and the results established in continuous diffusion models are recovered. The study also confirms that for the case of constant trading cost rate, the approximate results established by Kabanov and Safarian (1997)and by Pergamenschikov (2003) are still valid in jump-diffusion models with deterministic volatility using the classical Leland parameter in Leland (1986).
Termination orderings for associative-commutative rewriting systems
Creators: name: Plaisted, David
name: Bachmair, Leo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: In this paper we describe a new class of orderings—associative path orderings—for proving termination of associative-commutative term rewriting systems .These orderings are based on the concept of simplification orderings and extend the well-known recursive path orderings to E - congruence classes, where E is an equational theory consisting of associativity and commutativity axioms. Associative path orderings are applicable to term rewriting systems for which a precedence ordering on the set of operator symbols can be defined that satisfies a certain condition,the associative path condition. The precedence ordering can often be derived from the structure of the reduction rules. We include termination proofs for various term rewriting systems (for rings,boolean algebra,etc.) and, in addition, point out ways to handle situations where the associative path condition is too restrictive.
On the mechanical derivation of loop invariants
Creators: name: Chadha, Ritu
name: Plaisted, David
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: We describe an iterative algorithm for mechanically deriving loop invariants for the purpose of proving the partial correctness of programs. The algorithm is based on resolution and a novel unskolemization technique for deriving logical consequences of first-order formulas. Our method is complete in the sense that if a loop invariant exists for a loop in a given first-order language relative to a given finite set of first-order axioms, then the algorithm produces a loop invariant for that loop which can be used for proving the partial correctness of the program. Existing techniques in the literature are not complete.
The rational homotopy type of (n-1)-connected manifolds of dimension up to 5n-3
Creators: name: Crowley, Diarmuid
name: Nordström, Johannes
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 55P62, 57N65

description: We define the Bianchi-Massey tensor of a topological space X to be a linear map from a subquotient of the fourth tensor power of H*(X). We then prove that if M is a closed (n-1)-connected manifold of dimension at most 5n-3 (and n > 1) then its rational homotopy type is determined by its cohomology algebra and Bianchi-Massey tensor, and that M is formal if and only if the Bianchi-Massey tensor vanishes. We use the Bianchi-Massey tensor to show that there are many (n-1)-connected (4n-1)-manifolds that are not formal but have no non-zero Massey products, and to present a classification of simply-connected 7-manifolds up to finite ambiguity.
description: 31 pages. v3: Corrected statement of Theorem 1.5. To appear in the Journal of Topology
Complexity of Representations in Deep Learning
Creators: name: Ho, Tin Kam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep neural networks use multiple layers of functions to map an object represented by an input vector progressively to different representations, and with sufficient training, eventually to a single score for each class that is the output of the final decision function. Ideally, in this output space, the objects of different classes achieve maximum separation. Motivated by the need to better understand the inner working of a deep neural network, we analyze the effectiveness of the learned representations in separating the classes from a data complexity perspective. Using a simple complexity measure, a popular benchmarking task, and a well-known architecture design, we show how the data complexity evolves through the network, how it changes during training, and how it is impacted by the network design and the availability of training samples. We discuss the implications of the observations and the potentials for further studies.
Reproducibility Companion Paper: Describing Subjective Experiment Consistency by $p$-Value P-P Plot
Creators: name: Nawała, Jakub
name: Janowski, Lucjan
name: Ćmiel, Bogdan
name: Rusek, Krzysztof
name: Kastner, Marc A.
name: Zahálka, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: H.5.1; G.3
subject: 62-04

description: In this paper we reproduce experimental results presented in our earlier work titled "Describing Subjective Experiment Consistency by $p$-Value P-P Plot" that was presented in the course of the 28th ACM International Conference on Multimedia. The paper aims at verifying the soundness of our prior results and helping others understand our software framework. We present artifacts that help reproduce tables, figures and all the data derived from raw subjective responses that were included in our earlier work. Using the artifacts we show that our results are reproducible. We invite everyone to use our software framework for subjective responses analyses going beyond reproducibility efforts.
description: Please refer to the original publication: https://dl.acm.org/doi/10.1145/3474085.3477935 Related paper: https://dl.acm.org/doi/abs/10.1145/3394171.3413749 or arXiv:2009.13372
Cohesion as an Element of Style in Kaine Agary's Yellow-Yellow and Amma Darko's Faceless: A Systemic Textlinguistic Approach
Creators: name: Goodluck C. Kadiri
name: Joekin Ekwueme
Publisher: name: Zenodo
Year: 2024
Subjects: Cohesion, Textlinguistics, Style, Novels, Primitive Order Level.

description: Abstract

Systemic Textlinguistics is a viable approach in the study of the second order text. This study, therefore, investigated cohesion as an element of style in Agary’s Yellow-Yellow and Darko’s Faceless using the approach of Systemic Textlinguistics. The study investigates how the authors were able to creatively use cohesive devices within the semiotic universe of the texts to project their message. Textual data were extracted at random, using the concepts of “projection” and “procedure” as postulated by Adejare (1992) and analyzed qualitatively using the primitive order level of language. The findings revealed that the message of the novels was projected at the primitive order level using cohesive devices such as coordinate conjunctions, transitory word, lexical repetition, personal reference and ellipsis. The researchers concluded that both authors used cohesion creatively in the semiotic universe of texts to project the message of women's subjugation in Africa.
(102457) Norah Constance Parry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(102454) Bertha Helen Parry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Exercise-induced distal atrioventricular block
Creators: name: Gettes, Leonard
name: Foster, James
name: Woelfel, Alan
name: Simpson, Ross
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: Three patients with 1:1 atrioventricular (AV) conduction at rest developed fixed 2:1 or 3:1 AV block during treadmill exercise testing. Electrophysiologic study documented block distal to the AV node in all three patients, and suggested that the exercise-induced block occurred because of increased atrial rate and abnormal refractoriness of the His-Purkinje conduction system. The findings in these three patients suggest that high grade AV block appearing during exercise reflects conduction disease of the His-Purkinje system rather than of the AV node, even in the absence of bundle branch block. Patients with this diagnosis should be considered for permanent cardiac pacing.
The effects of He I 10830 on helium abundance determinations
Creators: name: Aver, Erik
name: Olive, Keith A.
name: Skillman, Evan D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of helium and hydrogen emission lines from metal-poor extragalactic H II regions provide an independent method for determining the primordial helium abundance, Y_p. Traditionally, the emission lines employed are in the visible wavelength range, and the number of suitable lines is limited. Furthermore, when using these lines, large systematic uncertainties in helium abundance determinations arise due to the degeneracy of physical parameters, such as temperature and density. Recently, Izotov, Thuan, & Guseva (2014) have pioneered adding the He 10830 infrared emission line in helium abundance determinations. The strong electron density dependence of He 10830 makes it ideal for better constraining density, potentially breaking the degeneracy with temperature. We revisit our analysis of the dataset published by Izotov, Thuan, & Stasinska (2007) and incorporate the newly available observations of He 10830 by scaling them using the observed-to-theoretical Paschen-gamma ratio. The solutions are better constrained, in particular for electron density, temperature, and the neutral hydrogen fraction, improving the model fit to data, with the result that more spectra now pass screening for quality and reliability, in addition to a standard 95% confidence level cut. Furthermore, the addition of He 10830 decreases the uncertainty on the helium abundance for all galaxies, with reductions in the uncertainty ranging from 10-80%. Overall, we find a reduction in the uncertainty on Y_p by over 50%. From a regression to zero metallicity, we determine Y_p = 0.2449 +/- 0.0040, consistent with the BBN result, Y_p = 0.2470 +/- 0.0002, based on the Planck determination of the baryon density. The dramatic improvement in the uncertainty from incorporating He 10830 strongly supports the case for simultaneous (thus not requiring scaling) observations of visible and infrared helium emission line spectra.
description: 21 pages, 6 figures
Neural Mechanisms of Mutualistic Fish Cleaning Behaviour: a Study in the Wild_MS
Creators: name: Romeo, Daniele
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310505
subject: Gene expression (incl. microarray and other genome-wide approaches)
classificationCode: 310509
subject: Genomics
classificationCode: 310511
subject: Neurogenetics

description: Codes for data analysis of the ms.
A gap at 1 au in the disk of DI Cha A revealed by infrared interferometry
Creators: name: Juhász, Tímea
name: Ábrahám, Péter
name: Moór, Attila
name: Chen, Lei
name: Kóspál, Ágnes
name: Varga, József
name: Regály, Zsolt
name: Zsidi, Gabriella
name: Pál, András
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: DI Cha A is K0-type pre-main sequence star, the brightest component of a quadruple stellar system. Here we report on a detailed study of this star based on archival VLTI/MIDI and VLTI/PIONIER infrared interferometric observations, as well as optical--infrared photometric monitoring from ground-based and space-born instruments. We determined the structure of the circumstellar disk by fitting simultaneously the interferometric visibilities and the spectral energy distribution, using both analytical models and the radiative transfer code RADMC-3D. The modeling revealed that the radial density distribution of the disk appears to have a gap between 0.21 and 3.0 au. The inner ring, whose inner size coincides with the sublimation radius, is devoid of small, submicrometer-sized dust grains. The inner edge of the outer disk features a puffed-up rim, typically seen in intermediate-mass stars. Grain growth, although less progressed, was also detected in the outer disk. The inner ring is variable at mid-infrared wavelengths on both daily and annual timescales, while the star stays remarkably constant in the optical, pointing to geometrical or accretion changes in the disk as possible explanation for the flux variations.
description: 19 pages, 18 figures
CIOOS: Scaling Up in this Ocean Decade
Creators: name: Fitzsimmons, Shayla
name: Jenkyns, Reyna
name: Smit, Michael
name: Brunsting, Ray
name: Deschamps, Ryan
name: Thupaki, Pramod
name: Munroe, James
Publisher: name: Zenodo
Year: 2022
Subjects: ocean observation
ocean data management
UN Ocean Decade

description: This is a presentation delivered as part of Ocean Sciences Meeting 2022 (AGU/ASLO/TOS), in session OS11: Observing and Predicting the Global Coastal Ocean 03. This presentation was recorded and is available here: https://www.youtube.com/watch?v=GKi7ZlCfQYk The Canadian Integrated Ocean Observing System (CIOOS) launched in 2019, following a decade of initiatives seeking nationally coordinated ocean observations. CIOOS completed its pilot phase, where it built infrastructure, defined metadata standards, prioritized EOVs, and established relationships. As we embark on the UN Ocean Decade and Canada’s contribution to a transparent and predictable ocean, we identify five 10-year horizon key challenges. 1. Streams and scale: We anticipate a transition from mostly static data to streams in the cloud. This will strain our capacity and conceptual models. This means investment in data processing infrastructure, co-locating analysis with data, and building ocean-to-desktop systems. 2. Principles and practices: CIOOS seeks to meet the FAIR, CARE and TRUST Principles, and to integrate and develop best practices relevant to the oceanographic and data management communities. Key focus areas include biological data, marine debris and model outputs. 3. Indigenous data and knowledge: CIOOS is forming partnerships with First Nations in coastal areas. Through co-design, CIOOS can integrate digital frameworks that meet the CARE (Collective benefit, Authority to control, Responsibility and Ethics) Principles and recognize sensitive data concerns. The application of Traditional Knowledge and Biocultural labels is a plausible approach for customizable data usage constraints. 4. Private sector engagement: These companies are an important producer and user of data. The underway VITALITY project has a mission to facilitate sharing of private sector data and to deliver outcomes that will build the blue economy. 5. Global collaboration: CIOOS recognizes partnerships and interoperability with observatories in adjacent waters are essential for applications that transcend national borders. Plans include participation in international working groups, co-development with the US IOOS, and data inputs to the Global Telecommunications System.
Borodin-Okounkov formula, string equation and topological solutions of Drinfeld-Sokolov hierarchies
Creators: name: Cafasso, Mattia
name: Wu, Chao-Zhong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We give a general method to compute the expansion of topological tau functions for Drinfeld-Sokolov hierarchies associated to an arbitrary untwisted affine Kac-Moody algebra. Our method consists of two main steps: first these tau functions are expressed as (formal) Fredholm determinants of the type appearing in the Borodin-Okounkov formula, then the kernels for these determinants are found using a reduced form of the string equation. A number of explicit examples are given.
description: Some changes in the exposition
(102455) Gladys Kate Parry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
OPTIMAL PLANNING AND OPERATION OF DISTRIBUTION SYSTEMS WITH MASSIVE ELECTRIC VEHICLES
Creators: name: Wang, Lusha
Publisher: name: Washington State University
Year: 2022
Subjects: Charging station planning
Distribution system
Electric vehicle
EV flexibility evaluation
Synthetic test feeder
Voltage control

description: The concern for global warming and the development of battery technology have promoted the adoption of electric vehicles (EVs) in recent years. The increasing penetration of EVs brings both challenges and opportunities to distribution systems. In the planning stage, system operators need to consider where to build public charging stations considering both economic and technology constraints. In the operation stage, system operators can take advantage of the EVs flexibility to mitigate operational issues and participate in markets. Therefore, it is of great importance to improve distribution system planning and operation with the trend of massive EV penetration.The objectives of my research are as follows: (1) to develop tools to generate synthetic distribution test feeders; (2) to develop methods to allocate public charging stations considering hosting capacity; (3) to develop methods solving voltage violations quickly and flexibility; and (4) to develop methods to evaluate the aggregate EVs flexibility.
description: In this dissertation, we outline my contributions to the team effort to develop CP-SyNet, a tool to generate customizable cyber-physical synthetic distribution test feeders. CP-SyNet generates three-phase unbalanced test feeders according to users' requirements, while simultaneously considering both the cyber side and the physical side of the network for more advanced analysis.
description: In the system planning stage, this dissertation proposes a comprehensive planning method for allocating charging stations considering realistic distribution and transportation operations. A new concept of extra load hosting capacity (ELHC) is proposed to evaluate the maximum extra load that the system can absorb without operational violations.
description: In the system operation stage, this dissertation proposes a decentralized voltage control algorithm which considers the coordination of EVs and Photovoltaics (PV) inverters. The approach involves clustering of the distribution network that considers EV flexibility and prediction period and solving voltage problems in each cluster using the proposed model predictive control (MPC)-based algorithm.
description: To evaluate the flexibility of massive EVs, this dissertation proposes a coordinated evaluation method, where distribution system operators (DSO) first evaluate EV aggregators' operational boundaries to exploit distribution level services and transmission system operators (TSO) then determine EV charging schedules and ancillary service capacity simultaneously, considering the requirement from DSO.
Exercise-induced st segment elevation in a patient with effort angina pectoris and normal coronary arteries
Creators: name: Sheps, David
name: Noneman, Jack
name: Popio, Kenneth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: A 32 year old woman who complained of exercise-induced chest pain was found to have widespread elevation of the ST segment of the electrocardiogram during exercise testing. Coronary angiography demonstrated no obstructive lesions and no evidence of coronary artery spasm despite ergonovine administration, bicycle ergo-metry and rapid atrial pacing. Exercise thallium-201 cintigraphy demonstrated no perfusion defects despite ST segment elevation. Radionuclide blood pool imaging revealed a slight decrease in ejection fraction with exercise. The available evidence raises the possibility of small vessel coronary artery disease, either structural or vasotonic, as a cause of this patient's symptoms.
Minimum Risk Point Estimation of Gini Index
Creators: name: De, Shyamal Krishna
name: Chattopadhyay, Bhargab
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This paper develops a theory and methodology for estimation of Gini index such that both cost of sampling and estimation error are minimum. Methods in which sample size is fixed in advance, cannot minimize estimation error and sampling cost at the same time. In this article, a purely sequential procedure is proposed which provides an estimate of the sample size required to achieve a sufficiently smaller estimation error and lower sampling cost. Characteristics of the purely sequential procedure are examined and asymptotic optimality properties are proved without assuming any specific distribution of the data. Performance of our method is examined through extensive simulation study.
(102449) Alfred Henry Compton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Growth parameters of Bi0.1Y2.9Fe5O12 thin films for high frequency applications
Creators: name: Gurjar, Ganesh
name: Sharma, Vinay
name: Patnaik, Satyabrata
name: Kuanr, Bijoy K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The growth and characterization of Bismuth (Bi) substituted YIG (Bi-YIG, Bi0.1Y2.9Fe5O12) thin films are reported. Pulsed laser deposited (PLD) films with thicknesses ranging from 20 to 150 nm were grown on Gadolinium Gallium Garnet substrates. Two substrate orientations of (100) and (111) were considered. The enhanced distribution of Bi3+ ions at dodecahedral site along (111) is observed to lead to an increment in lattice constant from 12.379 angstrom in (100) to 12.415 angstrom in (111) oriented films. Atomic force microscopy images showed decreasing roughness with increasing film thickness. Compared to (100) grown films, (111) oriented films showed an increase in ferromagnetic resonance linewidth and consequent increase in Gilbert damping. The lowest Gilbert damping values are found to be (1.06) * 10E-4 for (100) and (2.30) * 10E-4 for (111) oriented films with thickness of 150 nm. The observed values of extrinsic linewidth, effective magnetization, and anisotropic field are related to thickness of the films and substrate orientation. In addition, the in-plane angular variation established four-fold symmetry for the (100) deposited films unlike the case of (111) deposited films. This study prescribes growth conditions for PLD grown single-crystalline Bi-YIG films towards desired high frequency and magneto-optical device applications.
WASP-80b has a dayside within the T-dwarf range
Creators: name: Triaud, Amaury H. M. J.
name: Gillon, Michael
name: Ehrenreich, David
name: Herrero, Enrique
name: Lendl, Monika
name: Anderson, David R.
name: Cameron, Andrew Collier
name: Delrez, Laetitia
name: Demory, Brice-Olivier
name: Hellier, Coel
name: Heng, Keving
name: Jehin, Emmanuel
name: Maxted, Pierre F. L.
name: Pollacco, Don
name: Queloz, Didier
name: Ribas, Ignasi
name: Smalley, Barry
name: Smith, Alexis M. S.
name: Udry, Stephane
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: WASP-80b is a missing link in the study of exo-atmospheres. It falls between the warm Neptunes and the hot Jupiters and is amenable for characterisation, thanks to its host star's properties. We observed the planet through transit and during occultation with Warm Spitzer. Combining our mid-infrared transits with optical time series, we find that the planet presents a transmission spectrum indistinguishable from a horizontal line. In emission, WASP-80b is the intrinsically faintest planet whose dayside flux has been detected in both the 3.6 and 4.5 $μ$m Spitzer channels. The depths of the occultations reveal that WASP-80b is as bright and as red as a T4 dwarf, but that its temperature is cooler. If planets go through the equivalent of an L-T transition, our results would imply this happens at cooler temperatures than for brown dwarfs. Placing WASP-80b's dayside into a colour-magnitude diagram, it falls exactly at the junction between a blackbody model and the T-dwarf sequence; we cannot discern which of those two interpretations is the more likely. Flux measurements on other planets with similar equilibrium temperatures are required to establish whether irradiated gas giants, like brown dwarfs, transition between two spectral classes. An eventual detection of methane absorption in transmission would also help lift that degeneracy. We obtained a second series of high-resolution spectra during transit, using HARPS. We reanalyse the Rossiter-McLaughlin effect. The data now favour an aligned orbital solution and a stellar rotation nearly three times slower than stellar line broadening implies. A contribution to stellar line broadening, maybe macroturbulence, is likely to have been underestimated for cool stars, whose rotations have therefore been systematically overestimated. [abridged]
description: 15 pages, 5 figures, 2 tables (and appendices), accepted for publication in MNRAS
Being at Home in the Metaverse? Prospectus for a Social Imaginary
Creators: name: Gorichanaz, Tim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The metaverse has seen growing corporate and popular interest over the past few years. While visions vary, the metaverse is generally seen as an extension of the internet that may be developed through advances in a number of digital technologies, such as augmented and virtual reality, as well as new technical infrastructure and standards. The metaverse constitutes an emerging social imaginary, a way of both understanding and directing our shared existence. This paper examines this emerging social imaginary through the phenomenological concept of dwelling, or being at home in the world, as developed by Martin Heidegger. To examine in depth one influential articulation of this social imaginary, this paper focuses on the metaverse as envisioned by Mark Zuckerberg, CEO of Meta (formerly Facebook). The paper presents a thematic analysis of Zuckerberg's public statements regarding the metaverse to provide a close reading of this particular vision. Then, through the lens of Heidegger's philosophy of dwelling, this paper identifies numerous threats to dwelling posed by the metaverse social imaginary. This paper explains these threats and their prognoses, and it closes with some considerations for how the metaverse could be designed to better facilitate human dwelling.
Perspectives and future trends in cellular electrophysiology: Implications for the clinician
Creators: name: Gettes, Leonard S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: As a result of single fiber electrophysiologic studies, the clinical approach to the electrical behavior of the heart has improved. Three areas are examined: 1) the electrocardiographic waveform, 2) normal and abnormal cardiac rhythms, and 3) the mechanism of action of antiarrhythmic drugs. In each area, the results of single fiber studies have provided a conceptual framework for diagnostic and therapeutic decisions. These studies have also enabled investigators to test hypotheses formulated from clinical observations. It may be only a slight exaggeration to attribute many of our recent advances in each of the three areas to the development and use of the microelectrode.
Model fitting to concrete carbonation data with non-zero initial carbonation depth
Creators: name: Forsdyke, JC
name: Lees, JM
Publisher: name: Apollo - University of Cambridge Repository
Year: 2023
Subjects: Original Article
Carbonation
Concrete
Modelling
Durability

description: AbstractCarbonation is a key mechanism for deterioration of reinforced concrete structures. In design for resistance to carbonation, the performance of mixes is often specified and measured in laboratory carbonation tests where initial carbonation is sometimes present in specimens. The coherent interpretation of results from carbonation tests is vital as they enable a more accurate prediction of the performance of concrete structures in situ. This paper assesses two different approaches to considering the initial carbonation depth when extracting the carbonation coefficient from results of carbonation testing. Experimental data is compared to models for either approach using least squares regression. Both linear and non-linear representations of the initial carbonation depth are shown to fit the data well. The non-linear approach gives a larger estimate of carbonation coefficient than the linear approach, and is more consistent with the mathematical derivation of the carbonation equation. The ramifications of this difference will be most significant when the initial carbonation depth is large relative to the depth of the carbonation front. The accurate modelling of carbonation progression underpins performance-based design of new concrete structures and the assessment of existing concrete infrastructure.
(102452) Maude Beatrice Parry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Electroweak Corrections
Creators: name: Barbieri, Riccardo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The test of the electroweak corrections has played a major role in providing evidence for the gauge and the Higgs sectors of the Standard Model. At the same time the consideration of the electroweak corrections has given significant indirect information on the masses of the top and the Higgs boson before their discoveries and important orientation/constraints on the searches for new physics, still highly valuable in the present situation.The progression of these contributions is reviewed.
description: 14 pages, 3 figures, a contribution to "The Standard Theory up to the Higgs discovery - 60 years of CERN"
(102453) Arthur Cecil Parry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On the CFT Operator Spectrum at Large Global Charge
Creators: name: Hellerman, Simeon
name: Orlando, Domenico
name: Reffert, Susanne
name: Watanabe, Masataka
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the anomalous dimensions of operators with large global charge $J$ in certain strongly coupled conformal field theories in three dimensions, such as the O(2) model and the supersymmetric fixed point with a single chiral superfield and a $W = Φ^3$ superpotential. Working in a $1/J$ expansion, we find that the large-$J$ sector of both examples is controlled by a conformally invariant effective Lagrangian for a Goldstone boson of the global symmetry. For both these theories, we find that the lowest state with charge $J$ is always a scalar operator whose dimension $Δ_J$ satisfies the sum rule $ J^2 Δ_J - \left( \tfrac{J^2}{2} + \tfrac{J}{4} + \tfrac{3}{16} \right) Δ_{J-1} - \left( \tfrac{J^2}{2} - \tfrac{J}{4} + \tfrac{3}{16} \right) Δ_{J+1} = 0.035147 $ up to corrections that vanish at large $J$. The spectrum of low-lying excited states is also calculable explcitly: For example, the second-lowest primary operator has spin two and dimension $Δ\ll J + \sqrt{3}$. In the supersymmetric case, the dimensions of all half-integer-spin operators lie above the dimensions of the integer-spin operators by a gap of order $J^{1/2}$. The propagation speeds of the Goldstone waves and heavy fermions are $\frac{1}{\sqrt{2}}$ and $\pm \frac{1}{2}$ times the speed of light, respectively. These values, including the negative one, are necessary for the consistent realization of the superconformal symmetry at large $J$.
description: Typos corrected. References added
(102444) Mary Jane Giles
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Mechanical vibration transmission characteristics of the left ventricle: Implications with regard to auscultation and phonocardiography
Creators: name: Craige, Ernesti
name: Smith, Damon
name: Ishimitsu, Toshiyuki
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: Systolic-diastolic phasic alteration of left ventricular mechanical vibration transmissibility was studied in an open chest canine preparation. A continuous vibratory tone was applied to the base of the heart, and a miniature heart surface vibration sensor applied to the epicardium near the ventricular apex. This allowed the detection of the percent of the vibration that was transmitted from source to sensor. These data were compared with those from intracardiac phonocardiograms obtained using a micromanometer-tipped catheter. It was found that in systole, the ventricle transmitted a vibratory tone from the cardiac base to the apex so that it was readily detected by the heart surface sensor. In marked contrast, during diastole the relaxed ventricle failed almost completely to transmit the vibration to the apical position. When the dog experienced heart failure during hypoxia, the ventricular diastolic vibration transmissibility was found to equal or exceed that of the systolic phase.
(102450) Frances Ada Hughes
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Estimation of Gini Index within Pre-Specied Error Bound
Creators: name: Chattopadhyay, Bhargab
name: De, Shyamal Krishna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Gini index is a widely used measure of economic inequality. This article develops a general theory for constructing a confidence interval for Gini index with a specified confidence coefficient and a specified width. Fixed sample size methods cannot simultaneously achieve both the specified confidence coefficient and specified width. We develop a purely sequential procedure for interval estimation of Gini index with a specified confidence coefficient and a fixed margin of error. Optimality properties of the proposed method, namely first order asymptotic efficiency and asymptotic consistency are proved. All theoretical results are derived without assuming any specific distribution of the data.
A Secure Intelligent Decision Support System for Prescribing Medication
Creators: name: Omotosho, Adebayo
name: Justice, Emuoyibofarhe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The process of electronic approach to writing and sending medical prescription promises to improve patient safety, health outcomes, maintaining patients privacy, promoting clinician acceptance and prescription security when compared with the customary paper method. Traditionally, medical prescriptions are typically handwritten or printed on paper and hand-delivered to pharmacists. Paper-based medical prescriptions are generating major concerns as the incidences of prescription errors have been increasing and causing minor to serious problems to patients, including deaths. In this paper, intelligent eprescription model that comprises a knowledge base of drug details and an inference engine that can help in decision making when writing a prescription was developed. The research implements the e-prescription model with multifactor authentication techniques which comprises password and biometric technology. Microsoft Visual Studio 2008, using C-Sharp programming language, and Microsoft SQL Server 2005 database were employed in developing the systems front end and back end respectively. This work implements a knowledge base to the e-prescription system which has added intelligence for validating doctors prescription and also added security feature to the e-prescription system.
D-dimensional three-body bound-state problem with zero range interactions
Creators: name: Rosa, D. S.
name: Frederico, T.
name: Krein, G
name: Yamashita, M. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We solved analytically the three-body mass-imbalanced problem embedded in D dimensions for zero-range resonantly interacting particles. We derived the negative energy eigenstates of the three-body Schrodinger equation by imposing the Bethe-Peierls boundary conditions in D-dimensions for zero-energy two-body bound states. The solution retrieves the Efimov-like discrete scaling factor dependence with dimension. The analytical form of the mass-imbalanced three-body bound state wave function can be used to probe the effective dimension of asymmetric cold atomic traps for Feshbach resonances tuned close to the Efimov limit.
Pearle's Hidden-Variable Model Revisited
Creators: name: Gill, Richard D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P45

description: Pearle (1970) gave an example of a local hidden variables model which exactly reproduced the singlet correlations of quantum theory, through the device of data-rejection: particles can fail to be detected in a way which depends on the hidden variables carried by the particles and on the measurement settings. If the experimenter computes correlations between measurement outcomes of particle pairs for which both particles are detected, he is actually looking at a subsample of particle pairs, determined by interaction involving both measurement settings and the hidden variables carried in the particles. We correct a mistake in Pearle's formulas (a normalization error) and more importantly show that the model is more simple than first appears. We illustrate with visualisations of the model and with a small simulation experiment, with code in the statistical programming language R included in the paper. Open problems are discussed.
description: 19pp. This is now arXiv version 4 = final revision for journal
On the Energy-Efficiency Maximization for IRS-Assisted MIMOME Wiretap Channels
Creators: name: Mukherjee, Anshu
name: Kumar, Vaibhav
name: Ng, Derrick Wing Kwan
name: Tran, Le-Nam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Security and energy efficiency have become crucial features in the modern-era wireless communication. In this paper, we consider an energy-efficient design for intelligent reflecting surface (IRS)-assisted multiple-input multiple-output multiple-eavesdropper (MIMOME) wiretap channels (WTC). Our objective is to jointly optimize the transmit covariance matrix and the IRS phase-shifts to maximize the secrecy energy efficiency (SEE) of the considered system subject to a secrecy rate constraint at the legitimate receiver. To tackle this challenging non-convex problem in which the design variables are coupled in the objective and the constraint, we propose a penalty dual decomposition based alternating gradient projection (PDDAPG) method to obtain an efficient solution. We also show that the computational complexity of the proposed algorithm grows only linearly with the number of reflecting elements at the IRS, as well as with the number of antennas at transmitter/receivers' nodes. Our results confirm that using an IRS is helpful to improve the SEE of MIMOME WTC compared to its no-IRS counterpart only when the power consumption at IRS is small. In particular, and a large-sized IRS is not always beneficial for the SEE of a MIMOME WTC.
description: 6 pages, 7 figures