cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Algebraic semantics of ER-models from the standpoint of map calculus. Part I: Static view
Creators: name: Doberkat, Ernst-Erich
name: Omodeo, Eugenio G.
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 004

description: Entity-Relationship modeling is a popular technique for data modeling. Despite its popularity and wide spread use, it lacks a firm semantic foundation. We propose a translation of an ER-model into mapalgebra, suggesting that mapalgebra does provide suitable mechanisms for establishing a formal semantics of entity-relationship modeling. This report deals with the techniques necessary for the translation and provides a static view of an ER-model in its mapalgebraic disguise.
description: Internes Memorandum des Lehrstuhls für Software-Technologie / Fachbereich Informatik, Universität Dortmund ; 110
(200229) Arthur Templer Webster
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On the interaction of non-convex investment technologies and financial frictions
Creators: name: Bayer, Christian
Publisher: name: Universität Dortmund
Year: 2004
Subjects: subject: investment
subject: non-convex adjustment costs
subject: Financial frictions
subject: 330

description: This thesis analyses the interaction of financial frictions with fixed adjustment costs ofreal capital and other non-convexities in the investment technology. The key result isthat the combination of fixed adjustment cost and financial market imperfectionsaggravate the influence of each factor on investment decisions.The analysis starts off with a model of a monopolistically competitive firm facing bothfrictions. In this model, the interaction of the frictions opens a further channel ofinfluence for financial frictions on investment besides the one most models haveemphasised so far, the effect financial frictions have on the cost-of-capital. The furtherchannel is a separate effect of liquidity on the frequency with which investment projectsare undertaken.This theoretical framework is then empirically assessed by employing two balancesheet data sets, a British (Cambridge DTI-Database) and a German one (BonnDatabase). While the long-run effect of liquidity on the optimal stock-of-capital is at besta very weak one, the frequency-effect appears both statistically and economicallyimportant and explains virtually all correlation of investment and liquidity.The long-run optimal stock of capital is estimated using panel co-integrationtechniques. The investment-function itself is obtained by non-parametrically regressinginvestment on the difference between optimal and actual capital (the co-integrationerror term) and the equity ratio.The non-parametric approach is chosen as the investment-function in its functionalform depends itself on the form of the production function as well as on the forms of thedistribution-functions of all shocks that influence firm-level investment in a complexmanner, so that specifying a precise functional form would be very restrictive and mightbias the results. Yet, estimating the investment-function non-parametrically avoids thispossible mis-specification bias. By estimating average derivatives, still the variousalternative investment models can be tested structurally and the introduced frequencyeffect can be identified.The last part of the thesis extends the introductory model and develops a model inwhich irreversibility of investment, capital market imperfections and imperfect goodsmarketcompetition interact and so bring about patterns of investment behaviour thatare neither present in the irreversible investment, nor in the imperfect competitionframework. Especially, the model gives a rational explanation for the occurrence ofpredatory behaviour in non-collusive industries.
The action of matrix groups on aspherical manifolds
Creators: name: Ye, Shengkui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Let $\mathrm{SL}_{n}(\mathbb{Z})$ $(n\geq 3)$ be the special linear group and $M^{r}$ be a closed aspherical manifold. It is proved that when $r
description: The article arXiv:1609.07699 is split into two parts. This is the second part. The title is also changed. To appear in Algebraic and Geometric Topology
(200232) Ethel Charlotte Hewett
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
MPEC 2023-O22 : 2023 OG
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OG

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TDCC-NES Project programme and funding opportunities
Creators: name: Stanic, Mira
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science, Natural and Engineering Sciences

description: This is a short presentation about the TDCC-NES programme funding, managed by TDCC-NES that was presented during the OPEN and FAIR Networking event for the OSCD and 4TU.ResearchData communities on 14 September 2023.
Strain-induced Isostructural and Magnetic Phase Transitions in Monolayer MoN$_2$
Creators: name: Wang, Yao
name: Wang, Shan-Shan
name: Lu, Yunhao
name: Jiang, Jianzhong
name: Yang, Shengyuan A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The change of bonding status, typically occurring only in chemical processes, could dramatically alter the material properties. Here, we show that a tunable breaking and forming of a diatomic bond can be achieved through physical means, i.e., by a moderate biaxial strain, in the newly discovered MoN$_2$ two-dimensional (2D) material. Based on first-principles calculations, we predict that as the lattice parameter is increased under strain, there exists an isostructural phase transition at which the N-N distance has a sudden drop, corresponding to the transition from a N-N nonbonding state to a N-N single bond state. Remarkably, the bonding change also induces a magnetic phase transition, during which the magnetic moments transfer from the N(2p) sublattice to the Mo(4d) sublattice, meanwhile the type of magnetic coupling is changed from ferromagnetic to anti-ferromagnetic. We provide a physical picture for understanding these striking effects. The discovery is not only of great scientific interest in exploring unusual phase transitions in low-dimensional systems, but it also reveals the great potential of the 2D MoN$_2$ material in the nanoscale mechanical, electronic, and spintronic applications.
description: 21 pages,5 figures
Efficient algorithms for calculating optimal designs in pharmacokinetics and dose finding studies
Creators: name: Dette, Holger
name: Holland-Letz, Tim
name: Renard, Didier
Publisher: name: Technische Universität Dortmund
Year: 2010
Subjects: subject: Correlated observation
subject: Dose-finding study
subject: Heteroscedastic regression
subject: Locally optimal design
subject: Multiplicative algorithm
subject: Pharmacokinetic model
subject: Random effect
subject: 310
subject: 330
subject: 620

description: Random effects models are widely used in population pharmacokinetics and dose finding studies. In such models the presence of correlated observations (due to shared random effects and possibly residual serial correlation) usually makes the explicit determination of optimal designs diffcult. In this paper we develop a class of multiplicative algorithms for the numerical calculation of optimal experimental designs in such situations. In particular we demonstrate its application in a concrete example of a cross-over dose finding trial. Additionally, we show that the methodology can be modified to determine optimal designs where there exist some requirements regarding the minimal number of treatments for several (in some cases all) experimental conditions. AMS Subject Classi cation: 62K05
description: Discussion Paper / SFB 823;41/2010
Graphical Models for Zero-Inflated Single Cell Gene Expression
Creators: name: McDavid, Andrew
name: Gottardo, Raphael
name: Simon, Noah
name: Drton, Mathias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Bulk gene expression experiments relied on aggregations of thousands of cells to measure the average expression in an organism. Advances in microfluidic and droplet sequencing now permit expression profiling in single cells. This study of cell-to-cell variation reveals that individual cells lack detectable expression of transcripts that appear abundant on a population level, giving rise to zero-inflated expression patterns. To infer gene co-regulatory networks from such data, we propose a multivariate Hurdle model. It is comprised of a mixture of singular Gaussian distributions. We employ neighborhood selection with the pseudo-likelihood and a group lasso penalty to select and fit undirected graphical models that capture conditional independences between genes. The proposed method is more sensitive than existing approaches in simulations, even under departures from our Hurdle model. The method is applied to data for T follicular helper cells, and a high-dimensional profile of mouse dendritic cells. It infers network structure not revealed by other methods; or in bulk data sets. An R implementation is available at https://github.com/amcdavid/HurdleNormal .
description: Fixed error in software URL
Lattice thermal conductivity of Ti$_x$Zr$_y$Hf$_{1-x-y}$NiSn half-Heusler alloys calculated from first principles: Key role of nature of phonon modes
Creators: name: Eliassen, Simen N. H.
name: Katre, Ankita
name: Madsen, Georg K. H.
name: Persson, Clas
name: Løvvik, Ole Martin
name: Berland, Kristian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In spite of their relatively high lattice thermal conductivity $κ_{\ell}$, the XNiSn (X=Ti, Zr or Hf) half-Heusler compounds are good thermoelectric materials. Previous studies have shown that $κ_{\ell}$ can be reduced by sublattice-alloying on the X-site. To cast light on how the alloy composition affects $κ_\ell$, we study this system using the phonon Boltzmann-transport equation within the relaxation time approximation in conjunction with density functional theory.The effect of alloying through mass-disorder scattering is explored using the virtual crystal approximation to screen the entire ternary Ti$_x$Zr$_{y}$Hf$_{1-x-y}$NiSn phase diagram. The lowest lattice thermal conductivity is found for the Ti$_x$Hf$_{1-x}$NiSn compositions; in particular, there is a shallow minimum centered at Ti$_{0.5}$Hf$_{0.5}$NiSn with $κ_l$ taking values between 3.2 and 4.1 W/mK when the Ti content varies between 20 and 80\%. Interestingly, the overall behavior of mass-disorder scattering in this system can only be understood from a combination of the nature of the phonon modes and the magnitude of the mass variance. Mass-disorder scattering is not effective at scattering acoustic phonons of low energy. By using a simple model of grain boundary scattering, we find that nanostructuring these compounds can scatter such phonons effectively and thus further reduce the lattice thermal conductivity; for instance, Ti$_{0.5}$Hf$_{0.5}$NiSn with a grain size of $L= 100$ nm experiences a 42\% reduction of $κ_{\ell}$ compared to that of the single crystal.
Spinning solutions in general relativity with infinite central density
Creators: name: Flammer, Philip David
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper presents general relativistic numerical simulations of uniformly rotating polytropes. Equations are developed using MSQI coordinates, but taking a logarithm of the radial coordinate. The result is relatively simple elliptical differential equations. Due to the logarithmic scale, we can resolve solutions with near-singular mass distributions near their center, while the solution domain extends many orders of magnitude larger than the radius of the distribution (to connect with flat space-time). Rotating solutions are found with very high central energy densities for a range of adiabatic exponents. Analytically, assuming the pressure is proportional to the energy density (which is true for polytropes in the limit of large energy density), we determine the small radius behavior of the metric potentials and energy density. This small radius behavior agrees well with the small radius behavior of large central density numerical results, lending confidence to our numerical approach. We compare results with rotating solutions available in the literature, which show good agreement. We study the stability of spherical solutions: instability sets in at the first maximum in mass versus central energy density; this is also consistent with results in the literature, and further lends confidence to the numerical approach.
description: 14 pages, 6 figures
EU Green Deal steelmaking challenges: recycling, reuse, hydrogen, & artificial intelligence
Creators: name: SALERNO, Andrea
name: ROMERO-BAIVIER, Severine
name: PICICCO, Martiniano
name: REBOUILLAT, Lionel
name: HUGER, Marc
name: TESSIER-DOYEN, Nicolas
name: THUNE, Elsa
Publisher: name: Zenodo
Year: 2023
Subjects: Refractories
Finite Element Modelling
Recycling
Sustainability

description: EU Green Deal steelmaking challenges: recycling, reuse, hydrogen, & artificial intelligence,
(200227) Ernest Frederic Sulivan
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
AusEaaSI and Archiving Australian Media Art
Creators: name: de Vries, Denise
name: Moya, Cynde
name: Swalwell, Melanie
name: Stuckey, Helen
Publisher: name: Zenodo
Year: 2024
Subjects: media arts
emulation
EaaSI

description: AusEaaSI is an Australian consortium of research institutions and organisations in the Galleries, Libraries, Archives and Museums (GLAM)sector to build a network using Emulation-as-a-Service infrastructure (EaaSI) in order to stabilise and provide access to culturally significant born-digital artefacts.

In tandem with this, the Archiving Australian Media Arts project is developing a good practice method for preserving and emulating historic digital media artworks with special regard to artworks that are nteractive, complex digital artefacts, which react and respond to the clicks and mouse movements of the user.The collaborative approach and buy-in from stakeholders has built a nascent community with the confidence to tackle the particular challenges that are entailed in collecting, stabilising and emulating complex digital artefacts. No one institution is undertaking this work in isolation; rather, they are part of a national digital preservation ecosystem, supported by a core research team with high level specialist skills.

A diverse range of case studies drawn from exhibitions and the media art collections that have been developing across t he Australian cultural institutions partnering this project. These include: dLux MediaArts, Experimenta Media Art, ANAT, ACMI, the Art Gallery of New South Wales, the State Library of South Australia, and Griffith University ArtMuseum.

This poster outlines the work that has been achieved creating images from a range of media, configuring emulated environments and providing access for archival appraisal and public exhibition.
Area-preserving diffeomorphism of the hyperbolic plane and K-surfaces in Anti-de Sitter space
Creators: name: Bonsante, Francesco
name: Seppi, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: General Topology (math.GN)
subject: FOS: Mathematics

description: We prove that any weakly acausal curve $Γ$ in the boundary of Anti-de Sitter (2+1)-space is the asymptotic boundary of two spacelike $K$-surfaces, one of which is past-convex and the other future-convex, for every $K\in(-\infty,-1)$. The curve $Γ$ is the graph of a quasisymmetric homeomorphism of the circle if and only if the $K$-surfaces have bounded principal curvatures. Moreover in this case a uniqueness result holds. The proofs rely on a well-known correspondence between spacelike surfaces in Anti-de Sitter space and area-preserving diffeomorphisms of the hyperbolic plane. In fact, an important ingredient is a representation formula, which reconstructs a spacelike surface from the associated area-preserving diffeomorphism. Using this correspondence we then deduce that, for any fixed $θ\in(0,π)$, every quasisymmetric homeomorphism of the circle admits a unique extension which is a $θ$-landslide of the hyperbolic plane. These extensions are quasiconformal.
description: 47 pages, 18 figures. More details added to Remark 4.14, Remark 6.2 and Theorem 7.8 Step 2. Several references added and typos corrected. Final version. To appear in Journal of Topology
(200228) John Ironside Wood
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
APPENDIX IV: Eigenvectors Tables Of Analysis of the Ichnology, Depositional Environment of the Middle Cambrian Mount Whyte Formation, Alberta, Canada
Creators: Chundi Shan
Publisher: name: University of Alberta Library
Year: 2023

This is APPENDIX IV, eigenvectors tables, for Chundi Shan's Master thesis title "Analysis of the Ichnology, Depositional Environment of the Middle Cambrian Mount Whyte Formation, Alberta, Canada"
Design and Operational Experience of a Microwave Cavity Axion Detector for the 20-100 micro-eV Range
Creators: name: Kenany, S. Al
name: Anil, M. A.
name: Backes, K. M.
name: Brubaker, B. M.
name: Cahn, S. B.
name: Carosi, G.
name: Gurevich, Y. V.
name: Kindel, W. F.
name: Lamoreaux, S. K.
name: Lehnert, K. W.
name: Lewis, S. M.
name: Malnou, M.
name: Palken, D. A.
name: Rapidis, N. M.
name: Root, J. R.
name: Simanovskaia, M.
name: Shokair, T. M.
name: Urdinaran, I.
name: van Bibber, K. A.
name: Zhong, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe a dark matter axion detector designed, constructed, and operated both as an innovation platform for new cavity and amplifier technologies and as a data pathfinder in the $5 - 25$ GHz range ($\sim20-100\: μ$eV). The platform is small but flexible to facilitate the development of new microwave cavity and amplifier concepts in an operational environment. The experiment has recently completed its first data production; it is the first microwave cavity axion search to deploy a Josephson parametric amplifier and a dilution refrigerator to achieve near-quantum limited performance.
description: 17 pages, published in NIM A. v2: added changes made during the review process
Survival with primary lung cancer in Northern Ireland: 1991–1992
Creators: name: Mackenzie, Gilbert
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences

description: Lung cancer is a major cause of death in Western countries, but survival had never been studied in Northern Ireland (NI) on a population basis prior to this study. Aims The primary aims were to describe the survival of patients with primary lung cancer, evaluate the effect of treatment, identify patient characteristics influencing survival and treatment and describe current trends in survival. Methods A population-based study identified all incident cases of primary lung cancer in NI during 1991–2 and followed them for 21 months. Their clinical notes were traced and relevant details abstracted. Survival status was monitored via the Registrar General’s Office, and ascertainment is thought to be near-complete. Appropriate statistical methods were used to analyse the survival data. Results Some 855 incident cases were studied. Their 1-year survival was 24.5% with a median survival time of 4.7 months. Surgical patients had the best 1-year survival, 76.8%; however, adjustment suggested that about half of the benefit could be attributed to case-mix factors. Factors influencing treatment allocation were also identified, and a screening test showed the discordance between ‘model’ and ‘medic’: 210 patients were misclassified. Finally, the current trend in 1-year survival observed in the Republic of Ireland was best in the British Isles. Conclusions Overall, survival remains poor. The better survival of surgical patients is due, in part, to their superior case-mix profiles. Survival with other therapies is less good suggesting that the criteria for treatment might be relaxed with advantage .using a treatment model to aid decision-making.
Agrypnus muscosus
Creators: name: Hoffmannova, Johana
name: Packova, Gabriela
name: Prosvirov, Alexander S.
name: Akhter, Muhammad Atique
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Agrypnus
Agrypnus muscosus

description: Agrypnus muscosus (Candèze, 1893)
Lacon muscosus Candèze, 1893: 170.
Agrypnus muscosus: Hayek, 1973: 187. For more information, including synonyms, see Hayek (1973). Distribution. India, Pakistan (Hayek 1973, Chakraborty & Chakrabarti 2000, Platia & Ahmed 2016).
Literature. Platia & Ahmed (2016: 4): first record from Pakistan, figures of male habitus and genitalia.
description: Published as part of Hoffmannova, Johana, Packova, Gabriela, Prosvirov, Alexander S., Akhter, Muhammad Atique & Kundrata, Robin, 2023, An updated catalogue of Agrypninae (Coleoptera: Elateridae) from Pakistan, pp. 281-305 in Zootaxa 5270 (2) on page 285, DOI: 10.11646/zootaxa.5270.2.6, http://zenodo.org/record/7864780
Field-Induced Delocalization and Zener Breakdown in Semiconductor Superlattices
Creators: name: Bechstedt, F.
name: Glutsch, S.
name: Köhler, K.
name: Leo, K.
name: Lyssenko, V. G.
name: Löser, F.
name: Meinhold, D.
name: Rosam, B.
name: Rossi, F.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Homomorphisms from Specht Modules to Signed Young Permutation Modules
Creators: name: Lim, Kay Jin
name: Tan, Kai Meng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C30

description: We construct a class $Θ_{\mathscr{R}}$ of homomorphisms from a Specht module $S_{\mathbb{Z}}^λ$ to a signed permutation module $M_{\mathbb{Z}}(α|β)$ which generalises James's construction of homomorphisms whose codomain is a Young permutation module. We show that any $ϕ\in \operatorname{Hom}_{\mathbb{Z}\mathfrak{S}_{n}}\big(S_{\mathbb{Z}}^λ, M_{\mathbb{Z}}(α|β)\big)$ lies in the $\mathbb{Q}$-span of $Θ_{\text{sstd}}$, a subset of $Θ_{\mathscr{R}}$ corresponding to semistandard $λ$-tableaux of type $(α|β)$. We also study the conditions for which $Θ^{\mathbb{F}}_{\mathrm{sstd}}$ - a subset of $\operatorname{Hom}_{\mathbb{F}\mathfrak{S}_{n}}\big(S_{\mathbb{F}}^λ,M_{\mathbb{F}}(α|β)\big)$ induced by $Θ_{\mathrm{sstd}}$ - is linearly independent, and show that it is a basis for $\operatorname{Hom}_{\mathbb{F}\mathfrak{S}_{n}}\big(S_{\mathbb{F}}^λ,M_{\mathbb{F}}(α|β)\big)$ when $\mathbb{F}\mathfrak{S}_{n}$ is semisimple.
Supplementary material of "Designing problem-specific operators for solving the Cell Switch-Off problem in ultra-dense 5G networks with hybrid MOEAs"
Creators: name: Galeano-Brajones, Jesús
Publisher: name: figshare
Year: 2023
Subjects: Evolutionary computation
Fuzzy computation

description: Supplementary material of "Designing problem-specific operators for solving the Cell Switch-Off problem in ultra-dense 5G networks with hybrid MOEAs". It contains the following files: - Supplementary.pdf. Supplementary document with complementary data. - raw.zip. Contains the approximated fronts (FUN folders) and the decision variables (VAR folders). - hv.zip. HV calculations.
Queensland Guidelines for the provision of tree shade on suburban nature-strips
Creators: name: Downs, Nathan
Publisher: name: University of Southern Queensland
Year: 2022
Subjects: tree, shade, SPI, Brisbane, Ipswich

description: This report presents all data collected between June to September 2022 for the University of Southern Queensland Sponsored Research Agreement – USQ1061432022. A total of 100 publicly accessible footpaths were surveyed. Measurements taken at a spacing of 10 m along each street are presented for an approximate linear footpath length of 100 m. These are indicated in the report by street identification number (1 to 100) and survey site identifiers (a,b,c,d,e,f,g,h,i,j). Site measurements include Whole Sky Images (WSI) for the full 180o sky field of view, the Ultraviolet Protection Factor (UPF) measured using a handheld radiometer (Solar Light Co, Model 3D), and the ambient wet and dry bulb temperature. Locations of site measurements are shown in aerial maps listed in the results. Aerial maps of each street were sourced from Google Maps Imagery (© CNES/Airbus, Maxar Technologies, Map data © 2022) and were used to measure the approximate spacing, typical height and canopy diameter of trees located within a street. Analysis of solar ultraviolet protection characteristics of each survey site were made according to the WSI hemispherical analysis methodology of Downs et al. (2019). These results are presented as the site Shade Protection Index (SPI). The SPI represents the solar ultraviolet protection at a measurement site due to trees and surrounding surfaces objects. It is expressed as the ratio of the available ambient ultraviolet exposure to the site ultraviolet exposure expected over a full day from 5:00 am to 7:00 pm. SPI analysis is made for both winter (21 June) and summer (21 December), presenting the expected maximum annual range in daily UV protection at every site on every surveyed street and pathway. Recommendations on linear planting distance, ideal canopy diameter, and tree height are drawn from the collective analysis of all 100 street surveys. These optimal characteristics are used to develop an understanding of local tree species encountered during the survey that are likely to provide optimal protection from solar ultraviolet radiation in winter and summer.
Direct data-driven control of constrained linear parameter-varying systems: A hierarchical approach
Creators: name: Piga, Dario
name: Formentin, Simone
name: Bemporad, Alberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In many nonlinear control problems, the plant can be accurately described by a linear model whose operating point depends on some measurable variables, called scheduling signals. When such a linear parameter-varying (LPV) model of the open-loop plant needs to be derived from a set of data, several issues arise in terms of parameterization, estimation, and validation of the model before designing the controller. Moreover, the way modeling errors affect the closed-loop performance is still largely unknown in the LPV context. In this paper, a direct data-driven control method is proposed to design LPV controllers directly from data without deriving a model of the plant. The main idea of the approach is to use a hierarchical control architecture, where the inner controller is designed to match a simple and a-priori specified closed-loop behavior. Then, an outer model predictive controller is synthesized to handle input/output constraints and to enhance the performance of the inner loop. The effectiveness of the approach is illustrated by means of a simulation and an experimental example. Practical implementation issues are also discussed.
description: Preliminary version of the paper "Direct data-driven control of constrained systems" published in the IEEE Transactions on Control Systems Technology
(200230) Henry Benny Webster
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr.03/2010
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2010
Subjects: subject: 080

description: 1. Ordnung zur Änderung der Prüfungsordnung für den Bachelor-Studiengang Datenanalyse und Datenmanagement der Technischen Universität Dortmund vom 17. März 2010
description: 1. Ordnung zur Änderung der Prüfungsordnung für den Bachelor-Studiengang Statistik der Fakultät Statistik der Technischen Universität Dortmund vom 17. März 2010
description: 1. Ordnung zur Änderung der Prüfungsordnung für den Master-Studiengang Datenwissenschaft der Fakultät Statistik der Technischen Universität Dortmund vom 17. März 2010
description: 1. Ordnung zur Änderung der Prüfungsordnung für den Master-Studiengang Statistik der Fakultät Statistik der Technischen Universität Dortmund vom 17. März 2010
description: Geschäftsordnung des Instituts für Soziologie der Fakultät Erziehungswissenschaft und Soziologie der Technischen Universität Dortmund
description: Prüfungsordnung für den Master-Studiengang Kulturanalyse und Kulturvermittlung der Fakultät Kunst- und Sportwissenschaften der Technischen Universität Dortmund vom 17. März 2010
description: Zweite Ordnung zur Änderung der Promotionsordnung der Technischen Universität Dortmund für die Fakultät Erziehungswissenschaft und Soziologie
description: Amtliche Mitteilungen der Technischen Universität Dortmund ; 3, 2010
On the strength of the $U_A(1)$ anomaly at the chiral phase transition in $N_f=2$ QCD
Creators: name: Brandt, Bastian B.
name: Francis, Anthony
name: Meyer, Harvey B.
name: Philipsen, Owe
name: Robaina, Daniel
name: Wittig, Hartmut
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the thermal transition of QCD with two degenerate light flavours by lattice simulations using $O(a)$-improved Wilson quarks. Temperature scans are performed at a fixed value of $N_t = (aT)^{-1}=16$, where $a$ is the lattice spacing and $T$ the temperature, at three fixed zero-temperature pion masses between 200 MeV and 540 MeV. In this range we find that the transition is consistent with a broad crossover. As a probe of the restoration of chiral symmetry, we study the static screening spectrum. We observe a degeneracy between the transverse isovector vector and axial-vector channels starting from the transition temperature. Particularly striking is the strong reduction of the splitting between isovector scalar and pseudoscalar screening masses around the chiral phase transition by at least a factor of three compared to its value at zero temperature. In fact, the splitting is consistent with zero within our uncertainties. This disfavours a chiral phase transition in the $O(4)$ universality class.
description: 46 pages, 16 figure, 12 tables; v2: typos corrected; enhanced explanations and discussions; included study of systematic effects for the extraction of screening masses; conclusions unchanged; new version to match published version
Tracing star formation with non-thermal radio emission
Creators: name: Schober, Jennifer
name: Schleicher, Dominik R. G.
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A key for understanding the evolution of galaxies and in particular their star formation history will be future ultra-deep radio surveys. While star formation rates (SFRs) are regularly estimated with phenomenological formulas based on the local FIR-radio correlation, we present here a physically motivated model to relate star formation with radio fluxes. Such a relation holds only in frequency ranges where the flux is dominated by synchrotron emission, as this radiation originates from cosmic rays produced in supernova remnants, therefore reflecting recent star formation. At low frequencies synchrotron emission can be absorbed by the free-free mechanism. This suppression becomes stronger with increasing number density of the gas, more precisely of the free electrons. We estimate the critical observing frequency below which radio emission is not tracing the SFR, and use the three well-studied local galaxies M 51, M 82, and Arp 220 as test cases for our model. If the observed galaxy is at high redshift, this critical frequency moves along with other spectral features to lower values in the observing frame. In the absence of systematic evolutionary effects, one would therefore expect that the method can be applied at lower observing frequencies for high redshift observations. However, in case of a strong increase of the typical gas column densities towards high redshift, the increasing free-free absorption may erase the star formation signatures at low frequencies. At high radio frequencies both, free-free emission and the thermal bump, can dominate the spectrum, also limiting the applicability of this method.
description: 13 pages, 8 figures, accepted for publication at MNRAS
Interferometric computation beyond quantum theory
Creators: name: Garner, Andrew J. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There are quantum solutions for computational problems that make use of interference at some stage in the algorithm. These stages can be mapped into the physical setting of a single particle travelling through a many-armed interferometer. There has been recent foundational interest in theories beyond quantum theory. Here, we present a generalized formulation of computation in the context of a many-armed interferometer, and explore how theories can differ from quantum theory and still perform distributed calculations in this set-up. We shall see that quaternionic quantum theory proves a suitable candidate, whereas box-world does not. We also find that a classical hidden variable model first presented by Spekkens [Phys. Rev. A, 75:3:32100, 2007] can also be used for this type of computation due to the epistemic restriction placed on the hidden variable.
description: AAM, appearing in special issue on the Foundational Aspects of Quantum Information in Foundations of Physics. Some of the concepts presented here are also in the author's DPhil thesis [University of Oxford, Hilary 2015]
Universal freezing of asymmetry
Creators: name: Zhang, Da-Jian
name: Yu, Xiao-Dong
name: Huang, Hua-Lin
name: Tong, D. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Asymmetry of quantum states is a useful resource in applications such as quantum metrology, quantum communication, and reference frame alignment. However, asymmetry of a state tends to be degraded in physical scenarios where environment-induced noise is described by covariant operations, e.g., open systems constrained by superselection rules, and such degradations weaken the abilities of the state to implement quantum information processing tasks. In this paper, we investigate under which dynamical conditions asymmetry of a state is totally unaffected by the noise described by covariant operations. We find that all asymmetry measures are frozen for a state under a covariant operation if and only if the relative entropy of asymmetry is frozen for the state. Our finding reveals the existence of universal freezing of asymmetry, and provides a necessary and sufficient condition under which asymmetry is totally unaffected by the noise.
description: 6 pages
(200225) John Filmer Sulivan
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: Who cares who works?
Creators: name: Steiner, Dorothea
Year: 2024

description: In Österreich werden mehr als 70 % der unbezahlten Arbeit, also Putzen, Kochen und Pflege, von Frauen geleistet. Obwohl feministische Ökonom*innen schon seit Jahrzehnten auf die Bedeutung unbezahlter Arbeit hinweisen, wurde und wird ihre Rolle sowohl in der Wirtschaftstheorie als auch in der Politik vernachlässigt. Daher untersuche ich in dieser Arbeit, wie sich verschiedene sozioökonomische Merkmale darauf auswirken, wie Männer und Frauen ihre Zeit zwischen bezahlter und unbezahlter Arbeit aufteilen und wo hierbei signifikante Unterschiede liegen. Dabei stütze ich mich auf die Zeitverwendungs- sowie die Arbeitskräfteerhebung der Statistik Austria aus dem Jahr 2008. Um das vorherrschende Ungleichgewicht in der Arbeitsteilung zu analysieren, führe ich eine umfangreiche Literaturrecherche durch, untersuche die Daten deskriptiv und führe sowohl OLS- als auch Logit-Regressionen durch. Sowohl für das extensive als auch das intensive Erwerbs- als auch Betreuungsarbeitsangebot spielen Kinder und Bildung entscheidende, gegensätzliche Rollen – insbesondere für Frauen. Die Tatsache, dass die Hausarbeit hauptsächlich auf den Schultern von Frauen lastet, scheint dagegen willkürlich. Rückkopplungseffekte zwischen bezahlter und unbezahlter Arbeit und eine gewisse Zyklizität beeinflussen jedoch unbestreitbar die Art und Weise, wie wir unsere Zeit verbringen.
description: In Austria more than 70% of the unpaid workload that is cleaning, cooking and taking care of others is provided by women. Albeit feminist economists have been pointing out its importance for decades, unpaid labour and its role both in economic theory and politics has been neglected. Therefore, in this thesis, I investigate how various socioeconomic characteristics affect how men and women allocate their time between paid and unpaid labour and where significant differences lie. In doing so I make use of the time use survey as well as the labour force survey conducted by Austria's Federal Statistical Office in 2008. In attempting to shed light on the prevailing imbalance in labour division, I conduct an extensive literature review, descriptively explore the data and run both OLS and logit regressions. Both on the extensive and intensive margin of paid labour market participation and care work, children and education play crucial opposing roles, especially so for women. The fact that household work rests mostly on female shoulders, on the other hand, seems arbitrary. However, feedback effects between time spent on paid and unpaid work and a certain cyclicality indisputably affect the way we choose to spend our time.
title: Branding für Start-Ups. Ein Praxisleitfaden
Creators: name: Keppler, Lea
Publisher: name: Hochschule Offenburg
Year: 2023
Subjects: subject: 300 Sozialwissenschaften

description: Das Ziel dieses Praxisleitfadens ist es Start Ups dabei zu unterstützen ihre Marke und deren Auftritt so zu gestalten, dass sich ihre Brand Awareness erhöht.
description: Arbeitspapiere für Marketing und Management; 71
Supplementary material of "Designing problem-specific operators for solving the Cell-Switch Off problem in ultra-dense 5G networks with hybrid MOEAs"
Creators: name: Galeano-Brajones, Jesús
Publisher: name: figshare
Year: 2022
Subjects: Evolutionary computation
Fuzzy computation

description: Supplementary material of "Designing problem-specific operators for solving the Cell-Switch Off problem in ultra-dense 5G networks with hybrid MOEAs". It contains the following files: - Supplementary.pdf. Supplementary document with complementary data. - raw.zip. Contains the approximated fronts (FUN folders) and the decision variables (VAR folders). - hv.zip. HV calculations.
Стратегическое планирование и развитие предприятий
Creators: name: Федеральное государственное бюджетное учреждение науки Центральный экономико-математический институт Российской академии наук
Publisher: name: Федеральное государственное бюджетное учреждение науки Центральный экономико-математический институт Российской академии наук
Year: 2022

description: Стратегическое планирование и развитие предприятий
Ein Kategorienschema zur Analyse von Aussagen im MU
Creators: name: Köster, Dennis
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2009
Subjects: subject: 510

description: Welche Prozesse vollziehen sich eigentlich während der Bearbeitung von Aufgaben im Mathematikunterricht? Um diese Frage genauer zu untersuchen ist es hilfreich, Schüler bei der Arbeit zu beobachten. Doch nur eine Beobachtung alleine liefert im Allgemeinen nicht genügend Details, um konkrete Aussagen treffen zu können. In der Studie, auf die hier näher eingegangen wird, wurden die Bearbeitungen audiographisch festgehalten und mit einem Kategorienschema ausgewertet. Dieses soll zunächst vorgestellt werden, bevor dann die damit erzielten Ergebnisse der Studie präsentiert werden.
title: Data-driven Analysis of Microstructure-Property Relation in Functional Materials
Creators: name: Lin, Binbin
Publisher: name: UNSPECIFIED
Year: 2023

description: The interplay between structure and property is a fundamental research topic in materials science and engineering. Materials possess diverse microstructures, and effectively characterizing, representing, and correlating them with properties poses significant challenges. As a result, the understanding of the microstructure-property relation relies primarily on empirical approaches, which limits its application in materials optimization and design. However, the emergence of machine learning and data science methods in recent years has provided powerful tools with immense potential to advance materials research and design principles. These approaches offer promising opportunities to develop materials that meet future needs and have the capability to revolutionize traditional methods of materials research. This thesis focuses on the application of machine learning techniques to explore the relationships between microstructure and properties. Three prototype microstructural systems are studied: nanowire structure in lithium-ion cathode material, fibrous network structure in paper material, and grain/phase structure in dual-phase steel. The present work investigates different forms of microstructure representation across multiple microstructure levels. These include the use of deep neural networks to derive geometric descriptors to characterize nanowire morphology based on particle-level microscopy images, the derivation of descriptors from the complex fibrous network structure of paper materials at the network level, and the use of image-based latent features at the microstructure domain level for dual-phase steel. The material properties considered in this work are electrochemical properties obtained from experimental assessments, as in the case of battery cathode material, or from sound physical simulation data generated by sophisticated material models and simulations, as demonstrated for paper material and dual-phase steel. This thesis convincingly demonstrates that the use of machine learning-based techniques enables effective microstructural characterization, extraction of microstructural features, rapid prediction of material response, and ultimately the establishment of microstructure-property relations to facilitate improved material optimization and design.