cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Balancing Static Vacuum Black Holes with Signed Masses in 4 and 5 Dimensions
Creators: name: Khuri, Marcus
name: Weinstein, Gilbert
name: Yamada, Sumio
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct a new set of asymptotically flat, static vacuum solutions to the Einstein equations in dimensions 4 and 5, which may be interpreted as a superposition of positive and negative mass black holes. The resulting spacetimes are axisymmetric in 4-dimensions and bi-axisymmetric in 5-dimensions, and are regular away from the negative mass singularities, for instance conical singularities are absent along the axes. In 5-dimensions, the topologies of signed mass black holes used in the construction may be either spheres $S^3$ or rings $S^1 \times S^2$; in particular, the negative mass static black ring solution is introduced. A primary observation that facilitates the superposition is the fact that, in Weyl-Papapetrou coordinates, negative mass singularities arise as overlapping singular support for a particular type of Green's function. Furthermore, a careful analysis of conical singularities along axes is performed, and formulas are obtained for their propagation across horizons, negative mass singularities, and corners. The methods are robust, and may be used to construct a multitude of further examples. Lastly, we show that balancing does not occur between any two signed mass black holes of the type studied here in 4 dimensions, while in 5 dimensions two-body balancing is possible.
description: 35 pages, 7 figures
Θεωρήματα μονοτονίας και αυξητικότητας – παραλλαγές του λήμματος Schwarz για ολόμορφες συναρτήσεις:
Creators: name: Κλεάνθους, Γαλάτεια Χρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Λήμμα Schwarz
Μονοτονιακά θεωρήματα
Θεωρήματα αυξητικότητας
Ολόμορφες συναρτήσεις
Schwarz lemma
Monotonicity theorems
Growth theorems
Holomorphic functions

description: Περίληψη διατριβής: Στην παρούσα διδακτορική διατριβή μελετήσαμε αρχικά μια γνωστή κλάση μερόμορφων συναρτήσεων, αποδεικνύοντας μονοτονιακά θεωρήματα για συναρτήσεις που περιλαμβάνουν γεωμετρικά και δυναμοθεωρητικά μεγέθη. Στη συνέχεια αποδείξαμε θεωρήματα αυξητικότητας για ολόμορφες συναρτήσεις, με γεωμετρικές συνθήκες για τις εικόνες τους. Επίσης μελετήσαμε την κλάση των ελλειπτικά απλών συναρτήσεων, δίνοντας εκτιμήσεις αυξητικότητας. Τέλος δώσαμε κάποιες γεωμετρικές εκδοχές του γνωστού λήμματος Schwarz.
description: Thesis’ summary: Ιn the present thesis we studied at first a famous class of meromorphic functions, giving monotonicity theorems for functions involving geometric and potential-theoretic measures. Afterwards we proved growth theorems for holomorphic functions, under geometric conditions for their images. We studied also the class of elliptically schlict functions and we proved a growth theorem. Finally we gave some geometric versions of the classical lemma Schwarz.
Business Model Opportunities in Brick and Mortar Retailing Through Digitalization
Creators: name: Hokkanen, Harri
name: Walker, Charlotte
name: Donnelly, Aaron
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose: In current retailing, digitalization provides new value creation mechanisms that increase competition and offer customers myriad options to fulfil their needs. Increasing complexities in the retail field has instigated restructuring, pressuring traditional retailers to reconsider their business models. The purpose of this study is to explore and identify the ways in which brick and mortar retailers are approaching opportunities presented by digitalization. Design/methodology/approach: 26 semi-structured interviews were conducted with top-level retail managers from the UK and Finland. This exploratory study analyzes the qualitative data through the five key drivers of innovation (operational effectiveness and efficiency, lock-in, customer effectiveness and efficiency). The opportunities are presented in terms of the three business model elements (format, activities, and governance). Findings: The findings illustrate seven key business model opportunities enabled by digitalization. Retailers are responding to competition, providing speed and convenience through multiple channels, leveraging digital tools to improve efficiencies and deliver customer experiences, rethinking management models, and adjusting organizational approaches. However, brick and mortar retailers should re-evaluate the business model elements collectively in order to seize opportunities that drive profits and gain competitive advantage. Originality/value: This topic is pertinent due to the accelerated restructuring of retail markets, yet the subject is underexplored in the literature. This paper highlights brick and mortar retail managers' perceptions and experiences of adapting through digitalization. Guided by this enriched data, we provide contributions by identifying and suggesting opportunities in brick and mortar retail business model reconfiguration. Keywords: business model, opportunities, digitalization, brick and mortar retailers
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Revealing Hidden Context: Improving Users' Mental Models of Personal Firewalls
Creators: name: Raja, Fahimeh
name: Hawkey, Kirstie
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2009
Subjects: Usable security
firewall
configuration
mental model
issnet

description: Windows Vista's personal firewall provides its diverse users with a basic interface that hides many operational details. However, our study of this interface revealed that concealing the impact of network context on the security state of the firewall results in mental models that are unclear about the protection provided by the firewall resulting in an inaccurate understanding of the firewall configuration. We developed a prototype to support more contextually complete mental models through inclusion of network context information. Results from our initial evaluation of the prototype support our approach of improving user understanding of underlying system states by revealing hidden context, while considering the tension between complexity of the interface and security of the system.
Towards a New Business Model Canvas for Platform Businesses in Two-Sided Markets
Creators: name: Taipale-Erävala, Kyllikki
name: Salmela, Erno
name: Hannele, Lampela
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose This study aims to increase the understanding of digital platform businesses and business model innovation in two-sided markets. Design/methodology/approach A new business model canvas tool was created through abductive reasoning and a real-life case study. The case was a unique driving school digital platform that belongs to employee and professional service platforms. Findings The proposed business model canvas is based on Scholten’s canvas (2016) for platform businesses and complements it by acknowledging changes in people’s values and macro-environmental factors as new elements. Research limitations/implications (if applicable) The study is limited to an exemplary case of a driving school digital platform. However, the results and the novel canvas tool can be applied to innovating business models for digital service platforms in many industries. Originality/value The novelty of the study is derived from the insights created by the case study and the new tool that helps platform businesses innovate in two-sided markets. Keywords: digital business model; two-sided market; canvas; value proposition; values; PESTEL
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
Business model canvas for adoption of International Patient Summary standards in mHealth industry
Creators: name: Tageo, Valentina
name: Dantas, Carina Bordalo Martins Soares
name: Chronaki, Catherine
name: Lowe, Charles
name: Berler, Alexander
name: Porcu, Federica
Publisher: name: Journal of Business Models
Year: 2021

description: Purpose This article intends to present and discuss two promising business models for deploying international patient summary standards in mobile health (mHealth) apps, enhancing the value brought by standards, in particular by HL7 (Health Level Seven International) FHIR (Fast Healthcare Interoperability Resources) IPS (International Patient Summary). More specifically, it will explain how these standards may be understood as the strategic and financial incentives for organisations – and nations – to adopt the IPS. Approach A thorough analysis of concepts will be followed by the presentation of a business canvas for mHealth applications, that aggregates basic information on a common framework for the adoption of IPS standards. Findings To better understand this framework, two illustrative use cases (Disaster management and MOCHA - Models of Child Health Appraised/Vaccination) are presented and the benefits of IPS standard adoption in these situations are specifically highlighted as they may translate better quality care and well-being and, at the same time, represent reduction of costs on health-related expenditure. Originality This article is a summary of work developed specifically as part of the Trillium II project, primarily by collaboration by the organisations represented by the authors. Logically, it uses concepts previously developed, and referenced in the text as appropriate, however the authors maintain that the business models presented represent an original synthesis of these concepts specifically appropriate to the task of encouraging widespread adoption of the HL7 FHIR IPS.
description: Journal of Business Models, Vol. 8 No. 3 (2020): Journal of Business Models
title: Effect of warm deformation parameters on hardness and microstructure of AISI 1020 low carbon steel for near-net shape forging
Creators: name: Napatsakorn Jhonthong
name: Sukangkana Talangkun
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Warm forging
Warm deformation
Upsetting
Low carbon steel

description: Engineering and Applied Science Research, 52, 2, 188-197
Non-locality and gravitoelectromagnetic duality
Creators: name: Boos, Jens
name: Kolář, Ivan
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The weak-field Schwarzschild and NUT solutions of general relativity are gravitoelectromagnetically dual to each other, except on the positive $z$-axis. The presence of non-locality weakens this duality and violates it within a smeared region around the positive $z$-axis, whose typical transverse size is given by the scale of non-locality. We restore an exact non-local gravitoelectromagnetic duality everywhere via a manifestly dual modification of the linearized non-local field equations. In the limit of vanishing non-locality we recover the well-known results from weak-field general relativity.
description: 8 pages, comments welcome!
A Multi-method Approach for User-centered Design of Identity Management Systems
Creators: name: Jaferian, Pooya
name: Botta, David
name: Hawkey, Kirstie
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2009
Subjects: Usable Security
IdM
Heuristic Evaluation
issnet

description: Identity management (IdM) comprises the processes and infrastructure for the creation, maintenance, and use of digital identities. This includes designating who has access to resources, who grants that access, and how accountability and compliance is maintained. IdM has become an important aspect of IT security infrastructure in organizations, and some consider it to be the most important solution for enabling compliance. To facilitate identity management, usable technological solutions are important. In this ongoing research, we plan to study the practice of identity management from a socio-technical point of view, and study how technology can improve IdM. Our final goal is to develop recommendations for user-centered design of IdM systems. We've devised a multi-method approach to address this problem. To begin with, we performed a case study of IdM adoption and use in an insurance organization. The case study provides us with a high level understanding about the problem domain and directions for the rest of our research. We plan to continue our research in two phases: (1) evaluate the usability of an IdM system using heuristic evaluation, and (2) perform a field study to further our understanding about IdM practices and technologies, validate the results of our heuristic evaluation, and develop recommendations for user-centered design of IdM systems.
Radio frequency spectrum analyzer with a 5 THz bandwidth based on nonlinear optics in a CMOS compatible high-index doped silica waveguide
Creators: name: Li, Yuhua
name: Kang, Zhe
name: Zhu, Kun
name: Ai, Shiqi
name: Wang, Xiang
name: Davidson, Roy R.
name: Wu, Yan
name: Morandotti, Roberto
name: Little, Brent E.
name: Moss, David J.
name: Chu, Sai Tak
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report an all-optical radio-frequency (RF) spectrum analyzer with a bandwidth greater than 5 terahertz (THz), based on a 50-cm long spiral waveguide in a CMOS-compatible high-index doped silica platform. By carefully mapping out the dispersion profile of the waveguides for different thicknesses, we identify the optimal design to achieve near zero dispersion in the C-band. To demonstrate the capability of the RF spectrum analyzer, we measure the optical output of a femtosecond fiber laser with an ultrafast optical RF spectrum in the terahertz regime.
description: 5 pages, 6 figures, 26 references
ประสิทธิภาพการบริหารงานห้องสมุดตามทัศนะของบุคลากรทางการศึกษาในโรงเรียนมัธยมศึกษา สังกัดสำนักงานเขตพื้นที่การศึกษามัธยมศึกษาเขต 12 จังหวัดนครศรีธรรมราช
Creators: name: กัณนิกา  เพชรส่งศรี
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2556
Subjects: ประสิทธิภาพ, การบริหารงานห้องสมุด

description: 2, 6, วารสารเทคโนโลยีภาคใต้
Thurston Geometries in Three-Dimensional New Massive Gravity
Creators: name: Flores-Alfonso, D.
name: Lopez-Monsalvo, C. S.
name: Maceda, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that the three-dimensional Thurston geometries are vacuum solutions to the 3D new massive gravity equations of motion. We analyze their Lorentzian counterparts as well.
KGTorrent: A Dataset of Python Jupyter Notebooks from Kaggle
Creators: name: Quaranta, Luigi
name: Calefato, Fabio
name: Lanubile, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Computational notebooks have become the tool of choice for many data scientists and practitioners for performing analyses and disseminating results. Despite their increasing popularity, the research community cannot yet count on a large, curated dataset of computational notebooks. In this paper, we fill this gap by introducing KGTorrent, a dataset of Python Jupyter notebooks with rich metadata retrieved from Kaggle, a platform hosting data science competitions for learners and practitioners with any levels of expertise. We describe how we built KGTorrent, and provide instructions on how to use it and refresh the collection to keep it up to date. Our vision is that the research community will use KGTorrent to study how data scientists, especially practitioners, use Jupyter Notebook in the wild and identify potential shortcomings to inform the design of its future extensions.
Violation of the Appelquist-Carazzone decoupling in non-SUSY GUT
Creators: name: Chankowski, Piotr H.
name: Wagner, Jakub
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We point out that in non supersymmetric GUTs, in which the SU(5) gauge symmetry is broken down to the Standard Model gauge group by a $\mathbf{24}$ Higgs multiplet the Appelquist-Carazzone decoupling is violated. This is because the $SU(2)_L$ Higgs triplet contained in the $\mathbf{24}$ acquires a dimensionfull coupling to the $SU(2)_L$ Higgs doublets which is proportional to the GUT breaking vacuum expectation value (VEV) $V$. As a result, at one loop heavy gauge and Higgs fields contribution to tadpoles generate a VEV of the triplet which is not suppressed for $V\to\infty$ and violates the custodial symmetry.
description: 17 pages, no figures
Search for medium modification of the $ρ$ meson
Creators: name: Nasseripour, R.
name: Wood, M. H.
name: Djalali, C.
name: Weygand, D. P.
name: Tur, C.
name: Mosel, U.
name: Muehlich, P.
name: Collaboration, CLAS
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The photoproduction of vector mesons on various nuclei has been studied using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory. The vector mesons, $ρ$, $ω$, and $ϕ$, are observed via their decay to $e^+e^-$, in order to reduce the effects of final state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the $ρ$ meson. The $ρ$ spectral function is extracted from the data on various nuclei, carbon, iron, and titanium, and compared to the spectrum from liquid deuterium, which is relatively free of nuclear effects. We observe no significant mass shift for the $ρ$ meson; however, there is some widening of the resonance in titanium and iron, which is consistent with expected collisional broadening.
description: 8 pages, 4 figures
Rotational Widths for Use in the Tully-Fisher Relation. II. The Impact of Surface Brightness
Creators: name: Catinella, Barbara
name: Haynes, Martha P.
name: Giovanelli, Riccardo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a large sample of spiral galaxies for which 21 cm single-dish and/or long-slit optical spectra are available, we make a detailed comparison between various estimates of rotational widths. Different optical width estimators are considered and their limitations discussed, with emphasis on biases associated with rotation curve properties (shape and extent) and disk central surface brightness. The best match with HI rotational velocities is obtained with Polyex widths, which are measured at the optical radius (encompassing a fixed fraction of the total light of the galaxy) from a model fit to the rotation curve. In contrast with Polyex widths, optical rotational velocities measured at 2.15 disk scale lengths r_d deviate from HI widths by an amount that correlates with the central surface brightness of the disk. This bias occurs because the rotation curves of galaxies are in general still rising at 2.15 r_d, and the fraction of total mass contained within this radius decreases with increasing disk surface brightness. Statistical corrections, parameterized by the radial extent of the observed rotation curve, are provided to reduce Polyex and HI width measurements into a homogeneous system. This yields a single robust estimate of rotational velocity to be used for applications of disk scaling relations.
description: 13 pages, 8 figures. To appear in the Astronomical Journal (August 2007)
Anomalous $Z^\prime$ bosons for anomalous $B$ decays
Creators: name: Davighi, Joe
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the intriguing discrepancies in $b\to s \ell\ell$ transitions, the fermion mass problem, and a desire to preserve the accidental symmetries of the Standard Model (SM), we extend the SM by an anomalous $U(1)_X$ gauge symmetry where $X=Y_3+a(L_μ-L_τ)/6$. The heavy $Z^\prime$ boson associated with spontaneously breaking $U(1)_X$ at the TeV scale mediates the $b\to s\ell\ell$ anomalies via $\mathcal{O}^μ_9 \sim\frac{1}{Λ^2}(\bar{s}γ_ρP_L b)(\barμ γ^ρμ)$. We show that this model, which features mixed gauge anomalies involving $U(1)_X$ and hypercharge, can be made anomaly-free for any $a\in \mathbb{Z}$ by integrating in a pair of charged fermions whose masses naturally reside somewhere between 1 and 30 TeV. The gauge symmetry permits only the third family Yukawas at the renormalisable level, and so the light quark masses and mixings are controlled by accidental $U(2)^3$ flavour symmetries which we assume are minimally broken alongside $U(1)_X$. The lepton sector is not governed by $U(2)$ symmetries, but rather one expects a nearly diagonal charged lepton Yukawa with $m_{e,μ} \ll m_τ$. The model does not explain the hierarchy $m_e\ll m_μ$, but it does possess high quality lepton flavour symmetries that are robust to the heavy physics responsible for generating $m_{e,μ}$. We establish the viability of these models by checking agreement with the most important experimental constraints. We comment on how the model could also explain neutrino masses and the muon $g-2$.
description: 41 pages, 2 figures, 2 tables. Matches version accepted for publication by JHEP
SiPM used as fast Photon-Counting Module and for Multiphoton Detection
Creators: name: Eraerds, P.
name: Legre, M.
name: Rochas, A.
name: Zbinden, H.
name: Gisin, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Astrophysics (astro-ph)
subject: Biological Physics (physics.bio-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We demonstrate fast counting and multiphoton detection abilities of a Silicon Photo Multiplier (SiPM). In fast counting mode we are able to detect two consecutive photons separated by only 2.3 ns corresponding to 430 MHz. The counting efficiency for small optical intensities at a wavelength of 532 nm was found to be around 8.3% with a dark count rate of 50 kHz at T=-7 degrees Celsius. Using the SiPM in multiphoton detection mode, we find a good signal discrimination for different numbers of simultaneous detected photons.
description: 11 pages, 13 figures
Physics-Inspired Heuristics for Soft MIMO Detection in 5G New Radio and Beyond
Creators: name: Kim, Minsung
name: Mandrà, Salvatore
name: Venturelli, Davide
name: Jamieson, Kyle
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Overcoming the conventional trade-off between throughput and bit error rate (BER) performance, versus computational complexity is a long-term challenge for uplink Multiple-Input Multiple-Output (MIMO) detection in base station design for the cellular 5G New Radio roadmap, as well as in next generation wireless local area networks. In this work, we present ParaMax, a MIMO detector architecture that for the first time brings to bear physics-inspired parallel tempering algorithmic techniques [28, 50, 67] on this class of problems. ParaMax can achieve near optimal maximum-likelihood (ML) throughput performance in the Large MIMO regime, Massive MIMO systems where the base station has additional RF chains, to approach the number of base station antennas, in order to support even more parallel spatial streams. ParaMax is able to achieve a near ML-BER performance up to 160x160 and 80x80 Large MIMO for low-order modulations such as BPSK and QPSK, respectively, only requiring less than tens of processing elements. With respect to Massive MIMO systems, in 12x24 MIMO with 16-QAM at SNR 16 dB, ParaMax achieves 330 Mbits/s near-optimal system throughput with 4--8 processing elements per subcarrier, which is approximately 1.4x throughput than linear detector-based Massive MIMO systems.
description: ACM MobiCom '21 (https://doi.org/10.1145/3447993.3448619)
First Constraints on Source Counts at 350 Microns
Creators: name: Khan, Sophia A.
name: Shafer, Richard A.
name: Serjeant, Stephen
name: Willner, S. P.
name: Pearson, Chris P.
name: Benford, Dominic J.
name: Staguhn, Johannes G.
name: Moseley, S. Harvey
name: Sumner, Timothy J.
name: Ashby, Matthew L. N.
name: Borys, Colin K.
name: Chanial, Pierre
name: Clements, David L.
name: Dowell, C. Darren
name: Dwek, Eli
name: Fazio, Giovanni G.
name: Kovács, Attila
name: Floc'h, Emeric Le
name: Silverberg, Robert F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have imaged a $\sim$6 arcminute$^2$ region in the Boötes Deep Field using the 350 $μ$m-optimised second generation Submillimeter High Angular Resolution Camera (SHARC II), achieving a peak 1$σ$ sensitivity of $\sim$5 mJy. We detect three sources above 3$σ$, and determine a spurious source detection rate of 1.09 in our maps. In the absence of $5σ$ detections, we rely on deep 24 $μ$m and 20 cm imaging to deduce which sources are most likely to be genuine, giving two real sources. From this we derive an integral source count of 0.84$^{+1.39}_{-0.61}$ sources arcmin$^{-2}$ at $S>13$ mJy, which is consistent with 350 $μ$m source count models that have an IR-luminous galaxy population evolving with redshift. We use these constraints to consider the future for ground-based short-submillimetre surveys.
description: accepted for publication in The Astrophysical Journal
Combining a Convolutional Neural Network with Autoencoders to Predict the Survival Chance of COVID-19 Patients
Creators: name: Khozeimeh, Fahime
name: Sharifrazi, Danial
name: Izadi, Navid Hoseini
name: Joloudari, Javad Hassannataj
name: Shoeibi, Afshin
name: Alizadehsani, Roohallah
name: Gorriz, Juan M.
name: Hussain, Sadiq
name: Sani, Zahra Alizadeh
name: Moosaei, Hossein
name: Khosravi, Abbas
name: Nahavandi, Saeid
name: Islam, Sheikh Mohammed Shariful
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: COVID-19 has caused many deaths worldwide. The automation of the diagnosis of this virus is highly desired. Convolutional neural networks (CNNs) have shown outstanding classification performance on image datasets. To date, it appears that COVID computer-aided diagnosis systems based on CNNs and clinical information have not yet been analysed or explored. We propose a novel method, named the CNN-AE, to predict the survival chance of COVID-19 patients using a CNN trained with clinical information. Notably, the required resources to prepare CT images are expensive and limited compared to those required to collect clinical data, such as blood pressure, liver disease, etc. We evaluated our method using a publicly available clinical dataset that we collected. The dataset properties were carefully analysed to extract important features and compute the correlations of features. A data augmentation procedure based on autoencoders (AEs) was proposed to balance the dataset. The experimental results revealed that the average accuracy of the CNN-AE (96.05%) was higher than that of the CNN (92.49%). To demonstrate the generality of our augmentation method, we trained some existing mortality risk prediction methods on our dataset (with and without data augmentation) and compared their performances. We also evaluated our method using another dataset for further generality verification. To show that clinical data can be used for COVID-19 survival chance prediction, the CNN-AE was compared with multiple pre-trained deep models that were tuned based on CT images.
title: Stress-strain relationships of spirally confined instant concrete under axial compression
Creators: name: Ghozi, Mohammad
name: Anik Budiati
name: Bambang Sabariman
name: Tavio
name: Slamet Widodo
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Concrete age
Confinement
Inelastic state
Spiral
Stress-strain relationship model

description: Engineering and Applied Science Research, 52, 2, 198-206
Electronic Transport in the Oxygen Deficient Ferromagnetic Semiconducting TiO$_{2-δ}$
Creators: name: Yoon, Soack Dae
name: Harris, Vincent G.
name: Vittoria, Carmine
name: Widom, Allan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: TiO$_{2-δ}$ films were deposited on (100) Lanthanum aluminates LaAlO$_{3}$ substrates at a very low oxygen chamber pressure $P\approx 0.3$ mtorr employing a pulsed laser ablation deposition technique. In previous work, it was established that the oxygen deficiency in these films induced ferromagnetism. In this work it is demonstrated that this same oxygen deficiency also gives rise to semiconductor titanium ion impurity donor energy levels. Transport resistivity measurements in thin films of TiO$_{2-δ}$ are presented as a function of temperature and magnetic field. Magneto- and Hall- resistivity is explained in terms of electronic excitations from the titanium ion donor levels into the conduction band.
description: RevTeX4, Four pages, Four Figures in ^.eps format
Interaction of carbon clusters with Ni(100) : Application to the nucleation of carbon nanotubes
Creators: name: Amara, Hakim
name: Bichara, Christophe
name: Ducastelle, François
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In order to understand the first stages of the nucleation of carbon nanotubes in catalytic processes, we present a tight-binding Monte Carlo study of the stability and cohesive mechanisms of different carbon structures deposited on nickel (100) surfaces. Depending on the geometry, we obtain contrasted results. On the one hand, the analysis of the local energy distributions of flat carbon sheets, demonstrate that dangling bonds remain unsaturated in spite of the presence of the metallic catalyst. Their adhesion results from the energy gain of the surface Ni atoms located below the carbon nanostructure. On the other hand, carbon caps are stabilized by the presence of carbon atoms occupying the hollow sites of the fcc nickel structure suggesting the saturation of the dangling bonds.
การใช้ไมยราบยักษ์ (Mimosa pudica)เพื่อเพิ่มปริมาณอินทรียวัตถุในดินสำหรับการปลูกคื่นฉ่าย (Apium graveolens Linn.)
Creators: name: ชาติทนง  โพธิ์ดง
Publisher: name: คณะเทคโนโลยีการเกษตร  มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2019
Subjects: ไมยราบยักษ์
อินทรียวัตถุ
คื่นฉ่าย

description: วารสารเกษตรพระวรุณ, 16, 2, 349 359
ผลของการจัดการวัสดุอินทรีย์ต่อความอุดมสมบูรณ์ของดิน การเจริญเติบโต และผลผลิตอ้อย
Creators: name: เสาวคนธ์  เหมวงษ์
Publisher: name: คณะเทคโนโลยีการเกษตร  มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2019
Subjects: วัสดุอินทรีย์
อ้อย
ความอุดมสมบูรณ์ของดิน
การเจริญเติบโต
ผลผลิต

description: วารสารเกษตรพระวรุณ, 16, 2, 361 373
ผลของสีฝักและวัสดุปลูกต่อการงอก และการเจริญเติบโตของต้นกล้าครามฝักงอ
Creators: name: ครองใจ  โสมรักษ์
Publisher: name: คณะเทคโนโลยีการเกษตร  มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2019
Subjects: คราม
วัสดุปลูก
การงอก
ต้นกล้า

description: วารสารเกษตรพระวรุณ, 16, 2, 375 386
Crystal structure, Fermi surface calculations and Shubnikov-de Haas oscillations spectrum of the organic metal $θ$-(BETS)$_4$HgBr$_4$(C$_6$H$_5$Cl) at low temperature
Creators: name: Vignolles, David
name: Audouard, Alain
name: Lyubovskii, Rustem B.
name: Pesotskii, Sergei I.
name: Béard, Jérome
name: Canadell, Enric
name: Shilov, Gena V.
name: Bogdanova, Olga A.
name: Zhilayeva, Elena I.
name: Lyubovskaya, Rimma N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The organic metal θ$-(BETS)$_4$HgBr$_4$(C$_6$H$_5$Cl) is known to undergo a phase transition as the temperature is lowered down to about 240 K. X-ray data obtained at 200 K indicate a corresponding modification of the crystal structure, the symmetry of which is lowered from quadratic to monoclinic. In addition, two different types of cation layers are observed in the unit cell. The Fermi surface (FS), which can be regarded as a network of compensated electron and hole orbits according to band structure calculations at room temperature, turns to a set of two alternating linear chains of orbits at low temperature. The field and temperature dependence of the Shubnikov-de Haas oscillations spectrum have been studied up to 54 T. Eight frequencies are observed which, in any case, points to a FS much more complex than predicted by band structure calculations at room temperature, even though some of the observed Fourier components might be ascribed to magnetic breakdown or frequency mixing. The obtained spectrum could result from either an interaction between the FS's linked to each of the two cation layers or to an eventual additional phase transition in the temperature range below 200 K.
description: accepted for publication in Solid State Sciences
title: Ψύξη με ακτινοβολία σε καινοτόμα υλικά κτιρίων και δαπεδόστρωσης
title: Radiative cooling in innovative building materials and flooring
Creators: name: Μεσσαριτακη Μαρια
Publisher: name: Technical University of Crete
Year: 2021

description: Η ψύξη με ακτινοβολία είναι μια τεχνολογία παθητικής ψύξης που μπορεί να δροσίσει ένα χώρο χωρίς τη χρήση κάποιας εξωτερικής πηγής ενέργειας. Με τη χρήση κατάλληλων υλικών επιτυγχάνεται η αντανάκλαση του φωτός του ήλιου και ακτινοβολείται θερμότητα στο απώτερο διάστημα, το οποίο λειτουργεί σαν μια μεγάλη αποθήκη θερμότητας. Στόχος του φαινόμενου είναι η ψύξη του υλικού και ό,τι αυτό περιβάλλει. Για το σκοπό αυτό μοντελοποιήθηκαν τρία διαφορετικά υλικά, στο περιβάλλον εργασίας της MATLAB και 11 διαφορετικές ατμόσφαιρες στο περιβάλλον εργασίας της MODTRAN. Πρώτο υλικό, μια επίστρωση που συγκροτείται από στρώσεις διοξειδίου του αφνίου (HfO2) και διοξείδιο του πυριτίου (SiO2). Δεύτερο υλικό, μια επίστρωση πολυ(βινυλιδενο-φθοριούχο-συν-εξαφθοροπροπενίου) (P(VDF-HFP)). Και τρίτο υλικό, μια επίστρωση αποτελούμενη από δύο στρώσεις διοξειδίου του αλουμινίου (Αl2O3) και άργυρο (Αg). Αφού μελετήθηκαν τα μετεωρολογικά δεδομένα της περιοχής επιλέχθηκαν τρείς αντιπροσωπευτικές μέρες, στις οποίες ελέγχθηκε η απόδοση των υλικών. Με την βοήθεια των απαραίτητων εξισώσεων υπολογίστηκε η ψυκτική ισχύς, καθώς και η θερμοκρασία του υλικού καθ’ όλη τη διάρκεια της ημέρας για κάθε ένα από τα σενάριά μας. Αναλύθηκε η συμπεριφορά της θερμοκρασίας του κάθε υλικού σε διαφορετικές ατμόσφαιρες και πως αυτή μεταβάλλεται όταν αλλάζουν βασικά χαρακτηριστικά της ατμόσφαιρας, όπως η υγρασία.
description: Radiation cooling is a passive cooling technology that can cool a room without the use of an external energy source. With the use of suitable materials, the reflection of sunlight and the radiation of heat in the outer space is achieved, which functions as a large storehouse of heat. The purpose of the phenomenon is to cool the material and whatever surrounds it. For this purpose, three different materials were modeled in the MATLAB work environment and 11 different atmospheres in the MODTRAN work environment. The first material, a coating consisting of layers of hafnium dioxide (HfO2) and silicon dioxide (SiO2). Second material, a coating of poly (vinylidene-fluoride-co-hexafluoropropene) (P(VDF-HFP)) and the third material, a coating consisting of two layers of aluminum dioxide (Al2O3) and silver (Ag). After studying the meteorological data of the area, three representative days were selected, in which we would check the performance of the materials. With the help of the necessary equations the cooling power and the temperature of the material was calculated throughout the day for each of our scenarios. The temperature of each material in different atmospheres was analyzed as well as the behavior of it when basic atmospheric characteristics change, such as humidity.
A generalization of the equinoctial orbital elements
Creators: name: Baù, Giulio
name: Hernando-Ayuso, Javier
name: Bombardelli, Claudio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We introduce six quantities that generalize the equinoctial orbital elements when some or all the perturbing forces that act on the propagated body are derived from a disturbing potential. Three of the elements define a non-osculating ellipse on the orbital plane, other two fix the orientation of the equinoctial reference frame, and the last allows one to determine the true longitude of the body. The Jacobian matrices of the transformations between the new elements and the position and velocity are explicitly given. As a possible application we investigate their use in the propagation of Earth's artificial satellites showing a remarkable improvement compared to the equinoctial orbital elements.
Authorization Recycling in RBAC Systems
Creators: name: Wei, Qiang
name: Crampton, Jason
name: Beznosov, Konstantin
name: Ripeanu, Matei
Publisher: name: Zenodo
Year: 2008
Subjects: SAAM
JAMES
Authorization recycling
RBAC

description: As distributed applications increase in size and complexity, traditional authorization mechanisms based on a single policy decision point are increasingly fragile because this decision point represents a single point of failure and a performance bottleneck. Authorization recycling is one technique that has been used to address these challenges. This paper introduces and evaluates the mechanisms for authorization recycling in RBAC enterprise systems. The algorithms that support these mechanisms allow precise and approximate authorization decisions to be made, thereby masking possible failures of the policy decision point and reducing its load. We evaluate these algorithms analytically and using a prototype implementation. Our evaluation results demonstrate that authorization recycling can improve the performance of distributed access control mechanisms.
Picking Sequences and Monotonicity in Weighted Fair Division
Creators: name: Chakraborty, Mithun
name: Schmidt-Kraepelin, Ulrike
name: Suksompong, Warut
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Theoretical Economics (econ.TH)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: We study the problem of fairly allocating indivisible items to agents with different entitlements, which captures, for example, the distribution of ministries among political parties in a coalition government. Our focus is on picking sequences derived from common apportionment methods, including five traditional divisor methods and the quota method. We paint a complete picture of these methods in relation to known envy-freeness and proportionality relaxations for indivisible items as well as monotonicity properties with respect to the resource, population, and weights. In addition, we provide characterizations of picking sequences satisfying each of the fairness notions, and show that the well-studied maximum Nash welfare solution fails resource- and population-monotonicity even in the unweighted setting. Our results serve as an argument in favor of using picking sequences in weighted fair division problems.
description: Appears in the 30th International Joint Conference on Artificial Intelligence (IJCAI), 2021
Once a quality-food consumer, always a quality-food consumer? Consumption patterns of organic, label rouge, and geographical indications in French scanner data
Creators: name: Lambotte, Mathieu
name: De Cara, Stéphane
name: Bellassen, Valentin
name: Lambotte, Mathieu
name: De Cara, Stéphane
name: Bellassen, Valentin
Publisher: name: Unknown
Year: 2020
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Health Economics and Policy
subject: Quality food
subject: Consumption behavior
subject: Organic
subject: Regularity
subject: Lancaster

description: The aim of this study is to analyze the behavior of French consumers with respect to food products under various quality labels (organic, label rouge, and geographical indications). In particular, we investigate if consumers who purchase once a product under a given label tend to purchase a large fraction of this product (and other products) under the same label. Using a large scanner database, the regularity of quality-food consumption is analyzed through the relative frequency of conventional and quality purchases. The respective roles in regular consumption of product attributes, availability, and household characteristics are then examined using a random utility model. Regular organic consumers purchase around 28% of the organic market value, with variations depending on products. We find that product attributes are more related to regular organic behavior than household characteristics. In particular, product availability and product family (vegetables, eggs, milk, etc.) play a key role whereas lowprice organic products are not associated with more regular consumption. Acknowledging the existence of regularity in organic consumption and understanding its variation between product categories should lead public policies to more often target specific products in order to develop quality-food consumption.
Boolean network model predicts cell cycle sequence of fission yeast
Creators: name: Davidich, Maria I.
name: Bornholdt, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: A Boolean network model of the cell-cycle regulatory network of fission yeast (Schizosaccharomyces Pombe) is constructed solely on the basis of the known biochemical interaction topology. Simulating the model in the computer, faithfully reproduces the known sequence of regulatory activity patterns along the cell cycle of the living cell. Contrary to existing differential equation models, no parameters enter the model except the structure of the regulatory circuitry. The dynamical properties of the model indicate that the biological dynamical sequence is robustly implemented in the regulatory network, with the biological stationary state G1 corresponding to the dominant attractor in state space, and with the biological regulatory sequence being a strongly attractive trajectory. Comparing the fission yeast cell-cycle model to a similar model of the corresponding network in S. cerevisiae, a remarkable difference in circuitry, as well as dynamics is observed. While the latter operates in a strongly damped mode, driven by external excitation, the S. pombe network represents an auto-excited system with external damping.
description: 10 pages, 3 figures
Impact of spin-orbit coupling on quantum Hall nematic phases
Creators: name: Manfra, M. J.
name: de Picciotto, R.
name: Jiang, Z.
name: Simon, S. H.
name: Pfeiffer, L. N.
name: West, K. W.
name: Sergent, A. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Anisotropic charge transport is observed in a two-dimensional (2D) hole system in a perpendicular magnetic field at filling factors nu=7/2, nu=11/2, and nu=13/2 at low temperature. In stark contrast, the transport at nu=9/2 is isotropic for all temperatures. Isotropic hole transport at nu=7/2 is restored for sufficiently low 2D densities or an asymmetric confining potential. The density and symmetry dependences of the observed anisotropies suggest that strong spin-orbit coupling in the hole system contributes to the unusual transport behavior.
description: 4 pages, 4 figures
UV Spectroscopy of Metal-Poor Massive Stars in the Small Magellanic Cloud
Creators: name: Lennon, Daniel J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Hubble Space Telescope has provided the first clear evidence for weaker winds of metal-poor massive stars in the Small Magellanic Cloud, confirming theoretical predictions of the metallicity dependence of mass-loss rates and wind terminal velocities. For lower luminosity O-type stars however, derived mass-loss rates are orders of magnitude lower than predicted, and are at present unexplained.
description: 4 pages, 3 figures. To appear in 'The Impact of HST on European Astronomy', Eds., G. De Marchi & F.D. Macchetto, Astrophysics & Space Science, Springer
Authorization Using the Publish-Subscribe Model
Creators: name: Wei, Qiang
name: Ripeanu, Matei
name: Beznosov, Konstantin
Publisher: name: Zenodo
Year: 2008
Subjects: publish/subscribe
pub/sub
authorization infrastructure
JAMES
SAAM
speculative authorization

description: Traditional authorization mechanisms based on the request-response model are generally supported by point-to-point communication between applications and authorization servers. As distributed applications increase in size and complexity, an authorization architecture based on point-to-point communication becomes fragile and difficult to manage. This paper presents the use of the publish-subscribe (pub-sub) model for delivering authorization requests and responses between the applications and the authorization servers. Our analysis suggests that using the pub-sub architecture improves authorization system availability and reduces system administration overhead. We evaluate our design using a prototype implementation, which confirms the improvement in availability. Although the response time is also increased, this impact can be reduced by bypassing the pub-sub channel when returning authorizations or by caching coupled with local inference of authorization decisions based on previously cached authorizations.
Analysis of intensity correlation enhanced plasmonic structured illumination microscopy
Creators: name: Classen, Anton
name: Liu, Xinghua
name: Zheltikov, Aleksei M.
name: Agarwal, Girish S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose to enhance the performance of localized plasmon structured illumination microscopy (LP-SIM) via intensity correlations. LP-SIM uses sub-wavelength illumination patterns to encode high spatial frequency information. It can enhance the resolution up to three-fold before gaps in the OTF support arise. For blinking fluorophores or for quantum antibunching an intensity correlation analysis induces higher harmonics of the illumination pattern and enlarges the effective OTF. This enables ultrahigh resolutions without gaps in the OTF support, and thus a fully deterministic imaging scheme. We present simulations that include shot and external noise and demonstrate the resolution power under realistic photon budgets. The technique has potential in light microscopy where low-intensity illumination is paramount while aiming for high spatial but moderate temporal resolutions.
title: Comparative analysis of steady and unsteady friction models in numerical simulation of water hammer phenomenon
Creators: name: Mohsin, Zakariya
name: Sulaiman, Zeyad
name: Sahad Khilqa
Publisher: name: Faculty of Engineering, Khon Kaen University
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Water hammer
Transient flow
Unsteady friction models
Method of characteristics
Two-coefficient instantaneous acceleration-based

description: Engineering and Applied Science Research, 52, 2, 207-220