cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scalar and Tensor Sea Contributions to Nucleons
Creators: name: Batra, M.
name: Upadhyay, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Statistical approach for proton and neutron have been used to study the low energy properties of nucleons. Nucleons is assumed as a composite system of three quarks and "sea" where sea is assumed to be in S-wave consisting of quark-antiquark pairs (u]\bar{u},d\bar{d} only) and gluons. Here the contributions from scalar, vector and tensor sea is taken into consideration to find α and β. Distribution of spin among valence quarks and sea-quark for proton and neutron are denoted by I_1^pand I_1^n respectively. Statistical model predicted the values as 0.132 and -0.011 which is close to EMC experimental value 0.136 and -0.013 for I_1^p and I_1^n respectively. Although the statistical model predictions give close to EMC data for neutron spin distribution. The results have also been compared with the Simple quark model results that matches well with SU(6) model..
Enhancement of associated H^\pm W^\mp production in the NMSSM
Creators: name: Enberg, R.
name: Pasechnik, R.
name: Stål, O.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the Large Hadron Collider. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power between supersymmetric extensions of the Standard Model with minimal or extended Higgs sectors. We compute the cross section for this process in the next-to-minimal supersymmetric Standard Model (NMSSM), at the tree level for quark-quark scattering and at one-loop level for gluon-gluon scattering. The most important corrections beyond leading order are taken into account using an improved Born approximation. We find that the pp \to H^\pm W^\mp cross section can be resonantly enhanced by up to an order of magnitude over its MSSM value (both for \sqrt{s}=7 TeV and 14 TeV) through the contributions of heavy, neutral, singlet-dominated Higgs bosons appearing in the s-channel. Since such Higgs mass configurations are normally not possible in the MSSM, the observation of associated H^\pm W^\mp production at the LHC could provide a striking, although indirect, signature of a more complicated Higgs sector.
description: 25 pages, 12 figures
GHz bandwidth electro-optics of a single self-assembled quantum dot in a charge-tunable device
Creators: name: Prechtel, Jonathan H.
name: Dalgarno, Paul A.
name: Hadfield, Robert H.
name: McFarlane, Jamie
name: Badolato, Antonio
name: Petroff, Pierre M.
name: Warburton, Richard J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The response of a single InGaAs quantum dot, embedded in a miniaturized charge-tunable device, to an applied GHz bandwidth electrical pulse is investigated via its optical response. Quantum dot response times of 1.0 \pm 0.1 ns are characterized via several different measurement techniques, demonstrating GHz bandwidth electrical control. Furthermore a novel optical detection technique based on resonant electron-hole pair generation in the hybridization region is used to map fully the voltage pulse experienced by the quantum dot, showing in this case a simple exponential rise.
description: 7 pages, 4 figures
Trends in the magnetic properties of Fe, Co and Ni clusters and monolayers on Ir(111), Pt(111) and Au(111)
Creators: name: Bornemann, S.
name: Šipr, O.
name: Mankovsky, S.
name: Polesya, S.
name: Staunton, J. B.
name: Wurth, W.
name: Ebert, H.
name: Minár, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a detailed theoretical investigation on the magnetic properties of small single-layered Fe, Co and Ni clusters deposited on Ir(111), Pt(111) and Au(111). For this a fully relativistic {\em ab-initio} scheme based on density functional theory has been used. We analyse the element, size and geometry specific variations of the atomic magnetic moments and their mutual exchange interactions as well as the magnetic anisotropy energy in these systems. Our results show that the atomic spin magnetic moments in the Fe and Co clusters decrease almost linearly with coordination on all three substrates, while the corresponding orbital magnetic moments appear to be much more sensitive to the local atomic environment. The isotropic exchange interaction among the cluster atoms is always very strong for Fe and Co exceeding the values for bulk bcc Fe and hcp Co, whereas the anisotropic Dzyaloshinski-Moriya interaction is in general one or two orders of magnitude smaller when compared to the isotropic one. For the magnetic properties of Ni clusters the magnetic properties can show quite a different behaviour and we find in this case a strong tendency towards noncollinear magnetism.
Star Cluster Populations in the Outer Disks of Nearby Galaxies
Creators: name: Herbert-Fort, Stéphane
name: Zaritsky, Dennis
name: Moustakas, John
name: Di Paola, Andrea
name: Pogge, Richard W.
name: Ragazzoni, Roberto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a Large Binocular Telescope (LBT) imaging study that characterizes the star cluster component of nearby galaxy outer disks (beyond the optical radius R_25). Expanding on the pilot project of Herbert-Fort et al. (2009), we present deep (~ 27.5 mag V-band point-source limiting magnitude) U- and V-band imaging of six galaxies: IC 4182, NGC 3351, NGC 4736, NGC 4826, NGC 5474, and NGC 6503. We find that the outer disk of each galaxy is populated with marginally-resolved star clusters with masses ~10^3 M_sun and ages up to ~ 1 Gyr (masses and ages are limited by the depth of our imaging and uncertainties are large given how photometry can be strongly affected by the presence or absence of a few stars in such low mass systems), and that they are typically found out to at least 2 R_25 but sometimes as far as 3 to 4 R_25- even beyond the apparent HI disk. The mean rate of cluster formation for 1 R_25<= R <= 1.5R_25 is at least one every ~2.5 Myr and the clusters are spatially correlated with the HI, most strongly with higher density gas near the periphery of the optical disk and with lower density neutral gas at the HI disk periphery. We hypothesize that the clusters near the edge of the optical disk are formed in the extension of spiral structure from the inner disk and are a fairly consistent phenomenon and that the clusters formed at the periphery of the HI disk are the result of accretion episodes.
description: 23 pages, accepted for publication in ApJ
The Wave Properties of Coronal Bright Fronts Observed Using SDO/AIA
Creators: name: Long, David M.
name: DeLuca, Edward E.
name: Gallagher, Peter T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal bright fronts (CBFs) are large scale wavefronts that propagate though the solar corona at hundreds of kilometers per second. While their kinematics have been studied in detail, many questions remain regarding the temporal evolution of their amplitude and pulse width. Here, contemporaneous high cadence, multi-thermal observations of the solar corona from the Solar Dynamic Observatory (SDO) and Solar TErrestrial RElations Observatory (STEREO) spacecraft are used to determine the kinematics and expansion rate of a CBF wavefront observed on 2010 August 14. The CBF was found to have a lower initial velocity with weaker deceleration in STEREO observations compared to SDO (~340 km/s and -72 m/s/s as opposed to ~410 km/s and -279 m/s/s). The CBF kinematics from SDO were found to be highly passband-dependent, with an initial velocity ranging from 379+/-12 km/s to 460+/-28 km/s and acceleration ranging from -128+/-28 m/s/s to -431+/-86 m/s/s in the 335A and 304A passbands respectively. These kinematics were used to estimate a quiet coronal magnetic field strength range of ~1-2 G. Significant pulse broadening was also observed, with expansion rates of ~130 km/s (STEREO) and ~220 km/s (SDO). By treating the CBF as a linear superposition of sinusoidal waves within a Gaussian envelope, the resulting dispersion rate of the pulse was found to be ~8-13 Mm^2 s^-1. These results are indicative of a fast-mode magnetoacoustic wave pulse propagating through an inhomogeneous medium.
description: 14 pages, 2 figures. Accepted for publication in The Astrophysical Journal Letters
Online függelék - Társadalmi különbségek a magyarországi gyerekek fogainak állapotában és egészségmagatartásában
Creators: name: Hajdu, Tamás
name: Kertesi, Gábor
name: Fadgyas-Freyler, Petra
Publisher: name: figshare
Year: 2023
Subjects: Health economics

description: Online függelék a "Társadalmi különbségek a magyarországi gyerekek fogainak állapotában és egészségmagatartásában" c. tanulmányhoz
Charge Exchange X-ray Emission of Nearby Star-forming Galaxies
Creators: name: Liu, Jiren
name: Wang, Q. Daniel
name: Mao, Shude
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Properties of hot gas outflows from galaxies are generally measured from associated X-ray line emission assuming that it represents atomic transitions in thermally excited hot gas. X-ray line emission, however, can also arise from the charge exchange between highly ionised ions and neutral species. The Kα triplet of He-like ions can be used as a powerful diagnostic, because the charge exchange X-ray emission (CXE) favours the inter-combination and forbidden lines, while the thermal emission favours the resonance line. We analyse the OVII triplet of a sample of nine nearby star-forming galaxies observed by the XMM-Newton reflection grating spectrometers. For most galaxies, the forbidden lines are comparable to or stronger than the resonance lines, which is in contrast to the thermal prediction. For NGC 253, M51, M83, M61, NGC 4631, and the Antennae galaxy, the observed line ratios are consistent with the ratio of the CXE; for M94 and NGC 2903, the observed ratios indicate multiple origins; for M82, different regions show different line ratios, also indicating multiple origins. We discuss other possible mechanisms that can produce a relatively strong forbidden line, such as a collisional non-equilibrium-ionization recombining/ionizing plasma, which are not favoured. These results suggest that the CXE may be a common process and contribute a significant fraction of the soft X-ray line emission for galaxies with massive star formation.
description: 8 pages, 5 figures, accepted for publication in MNRAS
Modeling Quality Problems for a Generic Data Quality Management Process for Research Data
Creators: name: Matoni, Markus
name: Stein, Regine
Publisher: name: Zenodo
Year: 2020
Subjects: Quality Problems
Quality
Data Quality
Data Quality Management Process
Research Data
LIDO

description: This presentation presents a catalog of quality problems in research data that are focussed on material cultural objects, corresponding data models and data transformations. The catalog was created within the KONDA research project. The presentation was presented at CIDOC 2020 on December 8th, 2020. It aims at quality problems that have been modeled for a generic quality management process for research data. There are two examples included that model quality problems regarding LIDO 1.1 Public Beta.
COREWIND - ACTIVEFLOAT OpenFAST model 15 MW FOWT Grand Canary Island site
Creators: name: Duran, Ruben
name: Hernandez, Sergio
name: Vigara, Fernando
name: M. Youssef Mahfouz
Publisher: name: Zenodo
Year: 2020
Subjects: COREWIND project
Horizon2020
Renewable Energy
Wind
Floating Wind Energy
SemiSubmesible platform
15 MW wind Turbine

description: Files to simulate and run, ACTIVEFLOAT OpenFAST model 15MW FOWT from NREL (DTU) at Grand Canary Island site. This model version is consistent with deliverable D1.3 from COREWIND project (link to delvierable). Link to the 15MW wind turbine model can be found in the following link: GitHub - IEAWindTask37/IEA-15-240-RWT: 15MW reference wind turbine repository developed in conjunction with IEA Wind Disclaimer: The files and models are provided “as is”, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. in no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the models and files or the use or other dealings in the models and files provided.
description: WO2014177729 - SUBMERSIBLE STRUCTURE FOR ACTIVELY SUPPORTING TOWERS OF GENERATORS AND SUB-STATIONS OR SIMILAR ELEMENTS, IN MARITIME FACILITIES, NEBRERA GARCÍA, José Alfonso ALTOLAGUIRRE MCCRUMLISH, Jaime, 2014 (https://patentscope.wipo.int/search/es/detail.jsf?docId=WO2014177729)
description: {"references": ["Garrett Barter, Nikhar Abbas, Fanzhong Meng, Pietro Bortolotti, Witold Skrzypinski, George Scott, Roland Feil, Henrik Bredmose, Katherine Dykes, Matt Shields, Christopher Allen, and Anthony Viselli. 2020. Definition of the IEA 15-Megawatt Offshore Reference Wind. Golden, CO: National Renewable Energy Laboratory. NREL/TP-5000-75698. https://www.nrel.gov/docs/fy20osti/75698.pdf", "COREWIND D1.2 Design Loads, 2019.", "COREWIND D1.3", "WO2014177729 - SUBMERSIBLE STRUCTURE FOR ACTIVELY SUPPORTING TOWERS OF GENERATORS AND SUB-STATIONS OR SIMILAR ELEMENTS, IN MARITIME FACILITIES, NEBRERA GARC\u00cdA, Jos\u00e9 Alfonso ALTOLAGUIRRE MCCRUMLISH, Jaime, 2014"]}
Efficient Non-Interactive Secure Two-Party Computation for Equality and Comparison
Creators: name: Karimian Ardestani, Negin
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Computer Science
subject: Secure Two-Party Computation

description: Multi-party computation is receiving more and more attention as its application in more areas prove promising. In this research, our focus is on secure two-party computation. In particular, we propose non-interactive constructions for securely computing private equality testing and greater-than testing protocols. Our first construction is a private equality testing (PET) protocol. What distinguishes our construction from the state of the art is that it is single-round and secure against malicious adversaries. Our second construction is a private greater-than testing (PGT) protocol (i.e. the Yao's Millionaires problem) which is also single-round but only secure in the semi-honest model. Our protocols are based on the Peikert-Vaikuntanathan-Waters maliciously secure oblivious transfer and a collision resistant hash function. We formally prove that the PET protocol and the PGT protocol provide computational security. In this research, we developed our protocol for PET and run experiments to test it. The results provide evidence of efficiency of our protocol.
Generalised eigenfunction expansion and singularity expansion methods for canonical time-domain wave scattering problems
Creators: name: Wilks, Ben
name: Meylan, Michael H.
name: Montiel, Fabien
name: Wakes, Sarah
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The generalised eigenfunction expansion method (GEM) and the singularity expansion method (SEM) are applied to solve the canonical problem of wave scattering on an infinite stretched string in the time domain. The GEM, which is shown to be equivalent to d'Alembert's formula when no scatterer is present, is also derived in the case of a point-mass scatterer coupled to a spring. The discrete GEM, which generalises the discrete Fourier transform, is shown to reduce to matrix multiplication. The SEM, which is derived from the Fourier transform and the residue theorem, is also applied to solve the problem of scattering by the mass-spring system. The GEM and SEM are also applied to the problem of scattering by a mass positioned a fixed distance from an anchor point, which supports more complicated resonant behavior.
description: 18 pages, 7 figures
False Colouring
Creators: name: Procter, Anne
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Fine Arts
subject: Souvenir
subject: Materiality
subject: Memory
subject: Story
subject: Precious
subject: Catharsis

description: False Colouring is an exhibition that consists of three looping video installations, and over a thousand hand-sized, hand-printed paper dresses that were hung with clothespins to a labyrinthine configuration of white string. This installation was created as a means to externalize, reveal, and release personal narratives, as well as the physical relics – or souvenirs – that they were tied to. Through this exhibition I have given new life to the ephemeral memories of my past, and I have been given an opportunity to live more presently in my own life. The present paper was written as an accompaniment to the False Colouring exhibition, an explanation for all the choices that I have made, and the inspiration that I have felt. I have studied the life and works of Matisse, and I have read many books, including The Comfort of Things and Stuff by Daniel Miller and On Longing by Susan Stewart. Keywords: Souvenir, Materiality, Story, Memory, Precious, Paper, and Catharsis.
Generalised eigenfunction expansion and singularity expansion methods for two-dimensional acoustic time-domain wave scattering problems
Creators: name: Wilks, Ben
name: Meylan, Michael H.
name: Montiel, Fabien
name: Wakes, Sarah
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Time-domain wave scattering in an unbounded two-dimensional acoustic medium by sound-hard scatterers is considered. Two canonical geometries, namely a split-ring resonator (SRR) and an array of cylinders, are used to highlight the theory, which generalises to arbitrary scatterer geometries. The problem is solved using the generalised eigenfunction expansion method (GEM), which expresses the time-domain solution in terms of the frequency-domain solutions. A discrete GEM is proposed to numerically approximate the time-domain solution. It relies on quadrature approximations of continuous integrals and can be thought of as a generalisation of the discrete Fourier transform. The solution then takes a simple form in terms of direct matrix multiplications. In parallel to the GEM, the singularity expansion method (SEM) is also presented and applied to the two aforementioned geometries. It expands the time-domain solution over a discrete set of unforced, complex resonant modes of the scatterer. Although the coefficients of this expansion are divergent integrals, we introduce a method of regularising them using analytic continuation. The results show that while the SEM is usually inaccurate at $t=0$, it converges rapidly to the GEM solution at all spatial points in the computational domain, with the most rapid convergence occurring inside the resonant cavity.
description: 24 pages, 9 figures
Well-Being in Adults with High Functioning Autism Characteristics
Creators: name: Beler, Janice Marie
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education--Curriculum and Instruction
subject: Autism
subject: Well-Being
subject: Integral Methodological Pluralism

description: This study sought to examine well-being in adults with characteristics of high functioning autism. Drawing on first-, second-, and third-person perspectives, this study explored how autistic traits affect well-being. Integral methodological pluralism (IMP) was employed as a framework towards achieving a more balanced, comprehensive understanding of both background knowledge and issues germane to the topic of well-being in high functioning autism. The themes examined include the role of self in autism, relationships and autism, cognitive science and autism, and the approach to teaching learners with high functioning autism recommended by the Ministry of Education in the province of Alberta. Autism is a complex developmental disorder that is marked by its heterogeneity of symptoms, severity, and etiology. It has become a major field of research in multiple disciplines. Increased awareness has led to new methods for educating this growing population of learners. In spite of Alberta’s movement towards evidence-based teaching, much of our effort currently focuses on managing and controlling symptoms in order to promote positive behavior and immediate academic success. There is evidence that this approach amounts to short-term interventions designed to meet the more immediate needs of the child within the school setting, possibly at the expense of identifying and imparting skills and understandings that will contribute to long-term success and wellness. In the spirit of backward design models of educational planning, this study investigated understandings of well-being in high functioning autism. By improving the understanding relating to how adults with high functioning autism interpret and experience well-being, the findings can be used to provide curricular direction for youth that are less likely to be able to recognize and articulate the phenomena than adults.
The biological role of IL-7Ralpha Y449 signaling in lymphocyte development, function and transformation
Creators: name: Osborne, Lisa Colleen
Publisher: name: University of British Columbia
Year: 2010

description: The cytokine interleukin (IL)-7 is necessary for human T cell development and murine B and T lymphopoiesis. Mice lacking IL-7, either of its receptor components, the common γ chain (γc) or IL-7 receptor α (IL-7Rα), or essential intracellular signaling molecules are severely lymphopenic. Due to the developmental block in early T and B progenitors, the requirement for IL-7Rα signaling in later T and B cell stages has been difficult to evaluate. To address this question, we characterized lymphopoiesis in IL-7Rα449F mice harboring a single point mutation in IL-7Rα, where a key signaling residue (tyrosine 449) is mutated to phenylalanine (F). Biochemical analysis revealed that IL-7Rα Y449 is essential for activation of STAT5 and that there are both Y449-dependent and independent contributions to cell survival through regulation of Bcl-2 family members. IL-7Rα449F T and B cells are able to overcome the characteristic developmental block of IL-7Rα-/- mice and develop appreciable numbers of peripheral T and B cells. This finding permitted evaluation of peripheral T cell function. These experiments demonstrated that IL-7Rα Y449 signals are required for naïve T cell homeostasis, generation of a primary CD4 T cell response and for maintenance of memory CD8 T cells following Listeria monocytogenes infection. In contrast to expectations, the CD8 memory T cell maintenance defect does not appear to be a direct result of decreased Bcl-2 expression. Dysregulated cytokine signaling can also contribute to development and/or maintenance of leukemia and lymphoma. Through genetic analysis of two distinct oncogenes, we were able to show that the IL-7Rα449F mutation was sufficient to protect mice from IL-7 mediated T and B cell transformation and significantly delay the emergence of B cell lymphomas in the Eμ-myc mouse model of Burkitt’s lymphoma. Disruption of STAT5 activation appears to play a significant role in both models of tumor protection. Collectively, the data demonstrate that IL-7Rα signaling has both Y449-dependent and independent modalities that cooperate to ensure optimal B and T cell development and response to infection. Further, the data show that these signaling pathways can contribute to lymphomagenesis, and may be attractive targets for immunotherapeutics of IL-7 responsive tumors.
Vacuum levitation and motion control on chip
Creators: name: Melo, Bruno
name: Cuairan, Marc T.
name: Tomassi, Gregoire F. M.
name: Meyer, Nadine
name: Quidant, Romain
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Levitation in vacuum has evolved into a versatile technique which has already benefited diverse scientific directions, from force sensing and thermodynamics to material science and chemistry. It also holds great promises of advancing the study of quantum mechanics in the unexplored macroscopic regime. While most current levitation platforms are complex and bulky, miniaturization is sought to gain robustness and facilitate their integration into confined settings, such as cryostats or portable devices. Integration on chip is also anticipated to enhance the control over the particle motion through a more precise engineering of optical and electric fields. As a substantial milestone towards this goal, we present here levitation and motion control in high vacuum of a silica nanoparticle at the surface of a hybrid optical-electrostatic chip. By combining fiber-based optical trapping and sensitive position detection with cold damping through planar electrodes, we cool the particle motion to a few hundred phonons. Our results pave the way to the next generation of integrated levitation platforms combining integrated photonics and nanophotonics with engineered electric potentials, towards complex state preparation and read out.
description: 6 pages, 4 figures
Elevating Communication, Collaboration, and Shared Experiences between Peers in Mobile Video Communication using Drones
Creators: name: Jones, Brennan
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Computer Science
subject: video communication
subject: drones
subject: telepresence
subject: teleoperation
subject: Collaboration
subject: shared experiences
subject: CSCW
subject: HRI

description: People are increasingly using mobile video conferencing (e.g., Skype, FaceTime, Hangouts) to communicate, collaborate, and share experiences while on the go. Yet this presents challenges in adequately sharing camera views with remote users. In this thesis, I study the use of semi-autonomous drones for video conferencing, where an outdoor user (using a smartphone) is connected to a desktop user (e.g., who is at home or in an office) who can explore the environment from the drone's perspective. I describe findings from a study where pairs collaborated to complete shared navigation and search tasks. I illustrate the benefits of providing the desktop user with a view that is elevated, manipulable, and decoupled from the outdoor user. In addition, I articulate how participants overcame challenges in communicating environmental information and navigational cues, negotiated control of the view, and used the drone as a tool for sharing experiences. This provides a new way of thinking about mobile video conferencing, where cameras that are decoupled from both users play an integral role in communication, collaboration, and sharing experiences.
Multinomial belief networks for healthcare data
Creators: name: Donker, H. C.
name: Neijzen, D.
name: de Jong, J.
name: Lunter, G. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Healthcare data from patient or population cohorts are often characterized by sparsity, high missingness and relatively small sample sizes. In addition, being able to quantify uncertainty is often important in a medical context. To address these analytical requirements we propose a deep generative Bayesian model for multinomial count data. We develop a collapsed Gibbs sampling procedure that takes advantage of a series of augmentation relations, inspired by the Zhou$\unicode{x2013}$Cong$\unicode{x2013}$Chen model. We visualise the model's ability to identify coherent substructures in the data using a dataset of handwritten digits. We then apply it to a large experimental dataset of DNA mutations in cancer and show that we can identify biologically meaningful clusters of mutational signatures in a fully data-driven way.
description: 18 pages, 4 figs; supplement: 22 pages
Factors Influencing Breast Cancer Screening Practices Among Arabic Women Living in the State of Qatar: The Health Care Providers' Perspective
Creators: name: Hwang, Jasmine Jihye
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Health Care Management
subject: Nursing
subject: FOS: Health sciences
subject: Public Health
subject: breast cancer
subject: Qatar
subject: Early detection

description: Breast cancer is the most common cancer contributing to morbidity and mortality among Arabic women in Qatar. Arabic women are at risk primarily due to their low participation rates in breast cancer screening practices. Therefore, there must be a strong emphasis on the health care system to increase efforts in early detection of breast cancer. Using critical ethnography, the purpose of this study was to explore, understand, and describe factors influencing Arabic women’s breast cancer screening practices. Fifteen health care providers in Qatar were interviewed. An analysis of the data revealed influences of (a) knowledge and awareness and pain perception, (b) culture, (c) gender and power relations, and (d) systemic factors on women’s breast cancer screening practices. Study findings suggest that Arabic women’s health cannot be understood in isolation from the environment in which they live; therefore, solutions need to address the context and not be limited to the individual.
Global Phase Diagram of D-wave Superconductivity in the Square-Lattice $t\text{-}J$ Model
Creators: name: Chen, Feng
name: Haldane, F. D. M.
name: Sheng, D. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Hubbard and closely related $t\text-J$ models are exciting platforms for unconventional superconductivity (SC). Through state-of-the-art density matrix renormalization group calculations using the grand canonical ensemble, we address open issues regarding the ground-state phase diagram of the extended $t\text{-}J$ model on a square lattice in the parameter regime relevant to cuprate superconductors. On large 8-leg cylinders, we demonstrate that the pure $t\text{-}J$ model with only nearest-neighbor hoppings and superexchange interactions, for a wide range of doping ($δ=0.1-0.2$), hosts robust d-wave superconductivity possibly coexisting with weak unidirectional pair density wave. Furthermore, a small next nearest neighbor hopping $t_2$ suppresses pair and charge density waves, resulting in a uniform d-wave SC phase in both electron- and hole-doped cuprate model systems. Our work validates the $t\text-J$ model as a proper minimum model for the emergence of superconductivity in cuprate superconductors.
Optimal operation of cryogenic calorimeters through deep reinforcement learning
Creators: name: Angloher, G.
name: Banik, S.
name: Benato, G.
name: Bento, A.
name: Bertolini, A.
name: Breier, R.
name: Bucci, C.
name: Burkhart, J.
name: Canonica, L.
name: D'Addabbo, A.
name: Di Lorenzo, S.
name: Einfalt, L.
name: Erb, A.
name: Feilitzsch, F. v.
name: Fichtinger, S.
name: Fuchs, D.
name: Garai, A.
name: Ghete, V. M.
name: Gorla, P.
name: Guillaumon, P. V.
name: Gupta, S.
name: Hauff, D.
name: Ješkovský, M.
name: Jochum, J.
name: Kaznacheeva, M.
name: Kinast, A.
name: Kuckuk, S.
name: Kluck, H.
name: Kraus, H.
name: Langenkämper, A.
name: Mancuso, M.
name: Marini, L.
name: Mauri, B.
name: Meyer, L.
name: Mokina, V.
name: Niedermayer, K.
name: Olmi, M.
name: Ortmann, T.
name: Pagliarone, C.
name: Pattavina, L.
name: Petricca, F.
name: Potzel, W.
name: Povinec, P.
name: Pröbst, F.
name: Pucci, F.
name: Reindl, F.
name: Rothe, J.
name: Schäffner, K.
name: Schieck, J.
name: Schönert, S.
name: Schwertner, C.
name: Stahlberg, M.
name: Stodolsky, L.
name: Strandhagen, C.
name: Strauss, R.
name: Usherov, I.
name: Wagner, F.
name: Wagner, V.
name: Willers, M.
name: Zema, V.
name: Heitzinger, C.
name: Waltenberger, W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to light dark matter-nucleus scattering in current direct detection dark matter searches. In such devices, the temperature of the thermometer and the bias current in its readout circuit need careful optimization to achieve optimal detector performance. This task is not trivial and is typically done manually by an expert. In our work, we automated the procedure with reinforcement learning in two settings. First, we trained on a simulation of the response of three CRESST detectors used as a virtual reinforcement learning environment. Second, we trained live on the same detectors operated in the CRESST underground setup. In both cases, we were able to optimize a standard detector as fast and with comparable results as human experts. Our method enables the tuning of large-scale cryogenic detector setups with minimal manual interventions.
description: 23 pages, 14 figures, 2 tables
Optical systems with translational invariance
Creators: name: Zhuridov, Dmitry
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The leading order monochromatic aberrations are investigated for the optical systems, which obey single-plane symmetry and translational invariance. These aberrations are classified from the symmetry principles for the wave aberration function. The Fermat's Principle is applied for a system made of generic cylindrical surfaces and a complete set of the aberration coefficients required for calculation of the aberrations for any paraxial ray is obtained. To demonstrate the applied value of the analytical results obtained the criteria of compensation of the leading aberrations for cylindrical analog of the Cassegrain telescope were found.
description: 10 pages, 4 figures, 5 tables; updated to match the published version with errata
On the Convergence to the Continuum of Finite Range Lattice Covariances
Creators: name: Brydges, David C.
name: Mitter, P. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82Bxx (Primary) 35Jxx, 60XX (Secondary)

description: In J. Stat. Phys. 115, 415-449 (2004) Brydges, Guadagni and Mitter proved the existence of multiscale expansions of a class of lattice Green's functions as sums of positive definite finite range functions (called fluctuation covariances). The lattice Green's functions in the class considered are integral kernels of inverses of second order positive self adjoint operators with constant coefficients and fractional powers thereof. The fluctuation coefficients satisfy uniform bounds and the sequence converges in appropriate norms to a smooth, positive definite, finite range continuum function. In this note we prove that the convergence is actually exponentially fast.
description: 14 pages. We have added further references as well as a proof of Corollary 2.2. This version submitted for publication
StructureTransfer: A Scene Parsing Framework via Graph Matching for Images and Point Clouds
Creators: name: Yu, Tianshu
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Computer Science
subject: Robotics
subject: scene parsing
subject: semantic segmentation
subject: graph matching

description: Scene parsing is to densely label the pixels in an image with the semantic categories. In this thesis, we present a scene parsing framework which can work on both images and point clouds. To this end, we develop two separate pipelines for images and point clouds. For point clouds, a coarse segmentation is implemented to obtain an initial distribution for the objects. For images, superpixel segmentation is implemented and StructureTransfer is carried out. StructureTransfer is a model to find similar regions across scenes. The two pipelines converge at the inference step. Several novel potentials, representing point cloud constraints and StructureTransfer scores, are introduced into a traditional Markov Random Field (MRF) for the inference. The parsing accuracy of the proposed method is close to state-of-the-art algorithms on images. With the point clouds, the accuracy is significantly enhanced. The proposed framework shows remarkable prospect in real-world applications.
Objective Meaning: Exploring Mediated Discourse with Anonymous Public Interaction and Visual Techniques
Creators: name: Storteboom, Sarah
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Fine Arts
subject: Computer Science
subject: participatory
subject: Art
subject: public
subject: display
subject: anonymous
subject: interaction
subject: computer
subject: mediated
subject: discourse

description: This thesis explores self-expression and dialogue at the intersection of virtual and physical public space, through the conceptualization and development of "Objective Meaning". This is an artwork that allows individuals to contribute messages anonymously to a public display via personal devices. It builds on relational and disruptive art practices to create an unconventional experience that elicits reflection and a sense of agency for individuals who encounter it. By visually abstracting messages on the display, it is intended that individuals contemplate their engagement with public discourse. The use of visual abstraction also reveals a new space for mediating publicly contributed content on interactive displays. This is further explored through deployment of "Objective Meaning" in a semi-public space, collection of log data and field observations, followed by analysis and reflection on how people make use of this system and respond to the visual mediation of their expression.
When Graph Convolution Meets Double Attention: Online Privacy Disclosure Detection with Multi-Label Text Classification
Creators: name: Liang, Zhanbo
name: Guo, Jie
name: Qiu, Weidong
name: Huang, Zheng
name: Li, Shujun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: With the rise of Web 2.0 platforms such as online social media, people's private information, such as their location, occupation and even family information, is often inadvertently disclosed through online discussions. Therefore, it is important to detect such unwanted privacy disclosures to help alert people affected and the online platform. In this paper, privacy disclosure detection is modeled as a multi-label text classification (MLTC) problem, and a new privacy disclosure detection model is proposed to construct an MLTC classifier for detecting online privacy disclosures. This classifier takes an online post as the input and outputs multiple labels, each reflecting a possible privacy disclosure. The proposed presentation method combines three different sources of information, the input text itself, the label-to-text correlation and the label-to-label correlation. A double-attention mechanism is used to combine the first two sources of information, and a graph convolutional network (GCN) is employed to extract the third source of information that is then used to help fuse features extracted from the first two sources of information. Our extensive experimental results, obtained on a public dataset of privacy-disclosing posts on Twitter, demonstrated that our proposed privacy disclosure detection method significantly and consistently outperformed other state-of-the-art methods in terms of all key performance indicators.
description: The manuscript is accepted by Data Mining and Knowledge Discovery(ECML PKDD Journal track)
A JOURNEY THROUGH THE HISTORY OF CRAFT TERMS AND THEIR THEMATIC GROUPS
Creators: name: Abduvalieva, Khulkaroy
Publisher: name: Zenodo
Year: 2023

description: This comprehensive article explores the evolution of craft terms and their thematic groups throughout human history. It begins with the primitive tools of early craftsmanship, progresses through ancient civilizations with their specialized trades, examines the impact of medieval guilds on craft terminology, delves into the fusion of art and craft during the Renaissance, explores the industrial revolution's influence on mass production terminology, and discusses the contemporary revival of handmade craftsmanship. The narrative extends into the digital age, showcasing the emergence of terms related to technological craftsmanship. The article emphasizes the dynamic nature of craft language, shaped by cultural, technological, and societal shifts.
Examining User Experience in Multi-Display Environments
Creators: name: Seyed, Alemayehu
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Computer Science
subject: Multi-Display Environments
subject: Multi-Surface Environments
subject: User Experience
subject: MDE

description: With a large number of interactive displays and devices available for users today, multi-display environments are becoming both increasingly common and complex. This complexity also has an effect on a fundamental interaction that users frequently perform in multi-display environments – transferring content. The devices and displays in a multi-display environment – such as digital tabletops, tablets, and high resolution wall displays – now allow users to transfer content in a variety of different combinations. A review of existing research literature revealed that many of the interactions designed for transferring content in multi-display environments were created by system designers and were not necessarily interactions that users would find usable in real-world multi-display environments. From a user experience perspective, these interactions in multi-display environments require a focus on users, whose real-world experiences and perceptions play a significant role in the interactions themselves. This thesis presents research that identifies better interaction design for multi-display environments. This is accomplished by performing an elicitation study to determine the interactions that users are both comfortable with and prefer for transferring content in a multi-display environment. The result is a set of interaction metaphors and guidelines for user experience professionals to draw upon when creating new gestures and interactions for transferring content in multi-display environments.
Populism and the pandemic: The politicization of COVID-19 and cleavage agency among populist radical right parties
Creators: name: Volk, Sabine
name: De Jonge, Léonie
name: Rensmann, Lars
Publisher: name: Zenodo
Year: 2023
Subjects: cleavage agency
populist radical right parties
super cleavage
anti-establishment
COVID-19

description: This paper explores the politicization of the COVID-19 pandemic and cleavage agency among populist radical right parties (PRRPs) across the European Union (EU). Conceptualizing PRRPs as meaning-making agents, we ask if and to what extent they have reshaped socio-political conflicts and cleavage politics through COVID-19 issue entrepreneurship. To this end, we draw on a small-N comparative analysis of three country and party cases from across Europe, covering different regions within the EU as well as different institutional settings, with PRRPs being either in opposition (AfD in Germany, FvD in The Netherlands) or in power (PiS in Poland). We conduct a critical discourse analysis of party mobilizations and discursive framing in these three country contexts based on an original qualitative corpus including party media and publications, manifestos, political speeches, and social media posts, published in the context of election campaigns in 2020/21. Our findings indicate that despite variation across cases, all PRRPs studied in this paper contributed to consolidating a new politico-cultural super cleavage between liberal pluralism and authoritarian populism, which ideologically frames all societal conflicts in terms of an antagonism between alleged "totalitarian elites" and the (values of the) "democratic people".
Bullying in the Context of Politics, Pedagogy and Power
Creators: name: Buitenhuis, Eelco Bart
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education
subject: Leadership
subject: transformative leadership
subject: Pedagogy
subject: critical pedagogy
subject: Bullying
subject: workplace mobbing
subject: faculty of education
subject: tenure as bully
subject: Faculty
subject: academic bullying
subject: academic bullying culture
subject: Education
subject: power
subject: neoliberal politics
subject: bullying culture

description: In this qualitative research study, the causes of bullying between professors in faculties of education in Canada, the U.S., Europe, and Australia are investigated. The study shows how what was thought to be the unique burden of school children appears to also be a menace to academics; more specifically, this menace is found in the area of Pedagogy, the field that provides anti-bullying programs and policies. After an overview of the literature covering aspects of workplace bullying, the researcher concluded that little research has focused on this group, and that within the literature studied, most researchers were not interested in the causes of bullying. Eight professors were interviewed, and the study recorded many painful and costly effects of bullying. Through an interpretive qualitative study, the researcher sought explanations for the phenomenon, which may be found in an overly competitive culture, and in the politics and leadership resulting from this culture. Faculty who are forced to struggle for their place in the academy and have sacrificed to get there, have become fierce competitors who may lose their values.
On the Perception of Difficulty: Differences between Humans and AI
Creators: name: Spitzer, Philipp
name: Holstein, Joshua
name: Vössing, Michael
name: Kühl, Niklas
Publisher: name: CEUR-WS.org
Year: 2023
Subjects: Artificial Intelligence
Human-AI Interaction
Confidence Estimation
Instance Difficulty

description: With the increased adoption of artificial intelligence (AI) in industry and society, effective human-AI interaction systems are becoming increasingly important. A central challenge in the interaction of humans with AI is the estimation of difficulty for human and AI agents for single task instances. These estimations are crucial to evaluate each agent's capabilities and, thus, required to facilitate effective collaboration. So far, research in the field of human-AI interaction estimates the perceived difficulty of humans and AI independently from each other. However, the effective interaction of human and AI agents depends on metrics that accurately reflect each agent's perceived difficulty in achieving valuable outcomes. Research to date has not yet adequately examined the differences in the perceived difficulty of humans and AI. Thus, this work reviews recent research on the perceived difficulty in human-AI interaction and contributing factors to consistently compare each agent's perceived difficulty, e.g., creating the same prerequisites. Furthermore, we present an experimental design to thoroughly examine the perceived difficulty of both agents and contribute to a better understanding of the design of such systems.