cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of Early Science Experiences and T.V. Watching, 1980-1982
Creators: name: Rutherford, M.
name: Ormerod, M. B.
Publisher: name: UK Data Service
Year: 1983

description: To compare a sample in an urban environment in comprehensive schools (outer London borough) with a study carried out by J. Bottomley in 1976-79 (SN:1965) in a semi-rural middle class area of one of the home counties (S. Bucks), and to investigate the effects of T.V. viewing on attitudes to and choice of science subjects at 14 plus.
Banishing AdS ghosts with a UV cutoff
Creators: name: Andrade, Tomas
name: Faulkner, Thomas
name: Marolf, Donald
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A recent attempt to make sense of scalars in AdS with "Neumann boundary conditions" outside of the usual BF-window $-(d/2)^2 < m^2 l^2 < -(d/2)^2 + 1$ led to pathologies including (depending on the precise context) either IR divergences or the appearance of ghosts. Here we argue that such ghosts may be banished by imposing a UV cutoff. It is also possible to achieve this goal in certain UV completions. An example is the above AdS theory with a radial cutoff supplemented by particular boundary conditions on the cutoff surface. In this case we explicitly identify a region of parameter space for which the theory is ghost free. At low energies, this theory may be interpreted as the standard dual CFT (defined with "Dirichlet" boundary conditions) interacting with an extra scalar via an irrelevant interaction. We also discuss the relationship to recent works on holographic fermi surfaces and quantum criticality.
description: 20 pages, 9 figures
Patterns of Residential Burglary and Urban Environments, 1982-1983
Creators: name: Herbert, D. T.
name: Hyde, S. W.
Publisher: name: UK Data Service
Year: 1983

description: The aims of this survey were: to identify patterns of burglary and related forms of residential crime; to identify vulnerable areas and examine bases of vulnerability; to research attitudes within different types of residential area and policy implications.
Adiabatic demagnetization and generation of entanglement in spin systems
Creators: name: Furman, Gregory B.
name: Meerovich, Victor M.
name: Sokolovsky, Vladimir L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the entanglement emergence in a dipolar-coupled nuclear spin-1/2 system cooled using the adiabatic demagnetization technique. The unexpected behavior of entanglement for the next- and next-next-neighbor spins is revealed: entangled states of a spin system appear in two distinct temperature and magnetic field regions separated by a zero-concurrence area. The magnetic field dependence of the concurrence can have two maximums which positions are determined by the initial conditions and number of spins in a chain.
description: 9 figures; Physics Letters A 2012
An Implementation study of the Native Education Project text,The land of the Bloods
Creators: name: Duska, Deborah A. J.
Publisher: name: University of Calgary
Year: 1990
Subjects: subject: E 78 A34 D88 1990
subject: Indians of North America - Study and teaching - Alberta
subject: Multiculturalism - Canada

description: Bibliography: p. 287-299.
Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
Creators: name: Deng, M. T.
name: Yu, C. L.
name: Huang, G. Y.
name: Larsson, M.
name: Caroff, P.
name: Xu, H. Q.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on the observation of excitation of Majorana fermions in a Nb-InSb nanowire quantum dot-Nb hybrid system. The InSb nanowire quantum dot is formed between the two Nb contacts by weak Schottky barriers and is thus in the regime of strong couplings to the contacts. Due to the proximity effect, the InSb nanowire segments covered by superconductor Nb contacts turn to superconductors with a superconducting energy gap $Δ^*$. Under an applied magnetic field larger than a critical value for which the Zeeman energy in the InSb nanowire is $E_z\sim Δ^*$, the entire InSb nanowire is found to be in a nontrivial topological superconductor phase, supporting a pair of Majorana fermions, and Cooper pairs can transport between the superconductor Nb contacts via the Majorana fermion states. This transport process will be suppressed when the applied magnetic field becomes larger than a second critical value at which the transition to a trivial topological superconductor phase occurs in the system. This physical scenario has been observed in our experiment. We have found that the measured zero-bias conductance for our hybrid device shows a conductance plateau in a range of the applied magnetic field in quasi-particle Coulomb blockade regions.
description: 7 pages, 4 figures, supplementary materials of 3 pages and 1 figure
title: Deployment Architectures of MQTT Brokers in Event-Driven Industrial Internet of Things
Creators: name: Amiri, Amirali
name: Just, Valentin Philipp
name: Steindl, Gernot
name: Nastic, Stefan
name: Kastner, Wolfgang
name: Gorton, Ian
Publisher: name: TU Wien
Year: 2024
Subjects: Event-Driven IIoT
Empirical Data
MQTT Deployment Architectures

description: The Industrial Internet of Things (IIoT) involves various standards, protocols, and tools, requiring extensive expertise for system design. The traditional automation pyramid limits scalability due to tightly-coupled components. Integrating IIoT data in the cloud through event-driven communication, like MQTT brokers, provides loose coupling. This integration also aids in resource monitoring and planning, enhancing IIoT application performance. Despite many IIoT architecture studies, there is a lack of empirical comparisons of MQTT broker deployment strategies. This paper examines an edge-cloud aggregation scenario, where IIoT device requests are aggregated at the edge and fog services before being transmitted to the cloud. We study four MQTT deployment architectures and compare the results empirically. We use an Arduino Opta as an IIoT device. Also, we use software-based load generation to support replicability of our experiment and reproducibility of our results. Findings indicate that a central broker on a dedicated virtual machine gives 13.8% improvements of the mean response time compared to the shared deployment of MQTT broker and device gateways. Our results offer insights into effective deployment strategies.
English Provincial Repertory Theatre, 1977/78 to 1980/81
Creators: name: University Of York, Institute Of Social
name: Austen-Smith, D.
name: Jenkins, S.
Publisher: name: UK Data Service
Year: 1984

description: The research was concerned with the relationships that exist between those who distribute and those who receive grants in theatre markets. The aim was to consider questions such as:
 (i) What is the distribution of grants across repertory theatres from each of the various sources (Arts Council, local authority, other)?
 (ii) What effect does one donor's policy have upon other donors' decisions?
 (iii) In what way do recipients respond to variations in grant allocation?
 In the absence of any suitable published statistics, the data set was specially compiled to provide an empirical perspective on these questions.
Information Needs of the Elderly, 1979-1980
Creators: name: Sand, P. W.
name: Epstein, J.
name: Yelding, D.
Publisher: name: UK Data Service
Year: 1984

description: The purpose of this study was to examine the information available to the elderly and to show how they make use of it. The goal was to identify areas where information needs are not being met, and to suggest viable alternatives.
Constraints on dark matter annihilation from M87: Signatures of prompt and inverse-Compton gamma rays
Creators: name: Saxena, Sheetal
name: Summa, Alexander
name: Elsässer, Dominik
name: Rüger, Michael
name: Mannheim, Karl
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: As the largest mass concentrations in the local Universe, nearby clusters of galaxies and their central galaxies are prime targets in searching for indirect signatures of dark matter annihilation (DMA). We seek to constrain the dark matter annihilation emission component from multi-frequency observations of the central galaxy of the Virgo cluster. The annihilation emission component is modeled by the prompt and inverse-Compton gamma rays from the hadronization of annihilation products from generic weakly interacting dark matter particles. This component is fitted to the excess of the observed data above the spectral energy distribution (SED) of the jet in M87, described with a best-fit synchrotron-self-Compton (SSC) spectrum. While this result is not sufficiently significant to claim a detection, we emphasize that a dark matter "double hump signature" can be used to unambiguously discriminate the dark matter emission component from the variable jet-related emission of M87 in future, more extended observation campaigns.
description: 5 pages, 2 figures. Accepted for publication in EPJC
Hydrodynamic Fluctuations in Laminar Fluid Flow. II. Fluctuating Squire Equation
Creators: name: de Zarate, Jose M. Ortiz
name: Sengers, Jan V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use fluctuating hydrodynamics to evaluate the enhancement of thermally excited fluctuations in laminar fluid flow using plane Couette flow as a representative example. In a previous publication [J. Stat. Phys. vol. 144 (2011) p. 774] we derived the energy amplification arising from thermally excited wall-normal fluctuations by solving a fluctuating Orr-Sommerfeld equation. In the present paper we derive the energy amplification arising from wall-normal vorticity fluctuation by solving a fluctuating Squire equation. The thermally excited wall-normal vorticity fluctuations turn out to yield the dominant contribution to the energy amplification. In addition, we show that thermally excited streaks, even in the absence of any externally imposed perturbations, are present in laminar fluid flow.
description: 21 pages, 4 figures, Journal of Statistical Physics, accepted
Estimates of Densities and Filling Factors from a Cooling Time Analysis of Solar Microflares Observed with RHESSI
Creators: name: Baylor, R. N.
name: Cassak, P. A.
name: Christe, S.
name: Hannah, I. G.
name: Krucker, Säm
name: Mullan, D. J.
name: Shay, M. A.
name: Hudson, H. S.
name: Lin, R. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use more than 4,500 microflares from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) microflare data set (Christe et al., 2008, Ap. J., 677, 1385) to estimate electron densities and volumetric filling factors of microflare loops using a cooling time analysis. We show that if the filling factor is assumed to be unity, the calculated conductive cooling times are much shorter than the observed flare decay times, which in turn are much shorter than the calculated radiative cooling times. This is likely unphysical, but the contradic- tion can be resolved by assuming the radiative and conductive cooling times are comparable, which is valid when the flare loop temperature is a maximum and when external heating can be ignored. We find that resultant radiative and con- ductive cooling times are comparable to observed decay times, which has been used as an assumption in some previous studies. The inferred electron densities have a mean value of 10^11.6 cm^-3 and filling factors have a mean of 10^-3.7. The filling factors are lower and densities are higher than previous estimates for large flares, but are similar to those found for two microflares by Moore et al. (Ap. J., 526, 505, 1999).
description: Published in Ap. J
Chance and Probability Concepts Project, 1978-1981
Creators: name: Green, D. R.
Publisher: name: UK Data Service
Year: 1983

description: The aims of this project, which ran from November 1978 to October 1981 were:
 a) to survey the intuitions of chance and the concepts of probability possessed by English school pupils aged 11 to 16 years residing in the East Midlands region.
 b) to establish patterns of development of probability concepts and to relate these to other mathematics concepts.
 A special Probability Concepts Test was devised over a two year period, entailing six pilot versions before achieving the definitive form.
Gravitational entropy of black holes and wormholes
Creators: name: Romero, Gustavo E.
name: Thomas, Romain
name: Pérez, Daniela
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Pure thermodynamical considerations to describe the entropic evolution of the universe seem to violate the Second Law of Thermodynamics. This suggests that the gravitational field itself has entropy. In this paper we expand recent work done by Rudjord, GrØn and SigbjØrn where they suggested a method to calculate the gravitational entropy in black holes based on the so-called `Weyl curvature conjecture'. We study the formulation of an estimator for the gravitational entropy of Reissner-Nordström, Kerr, Kerr-Newman black holes, and a simple case of wormhole. We calculate in each case the entropy for both horizons and the interior entropy density. Then, we analyse whether the functions obtained have the expected behaviour for an appropriate description of the gravitational entropy density.
description: 11 pages, 11 figures, accepted for publication in International Journal of Theoretical Physics
Contemporary Work Situation of Clerical Employees, 1979-1981
Creators: name: Crompton, R.
name: Snow, T.
name: Jones, G. L.
name: Reid, S.
Publisher: name: UK Data Service
Year: 1984

description: The purpose of this study was to examine the impact of mechanisation (computerisation) on clerical work, with particular reference to the de-skilling of the clerical labour process; to examine the feminisation of the non-manual labour process and the implication of both computerisation and feminisation for male and female careers.
The AKS Gravity – A Universal Revelation of Motion, Permission, and the Unseen Force
Creators: name: Singh, Avish Kumar
Publisher: name: Zenodo
Year: 2025
Subjects: Avish Gravity Model
Gravity
curtain theory
invisible force
dual forces
metaphysical physics
atmospheric veil
conscious motion
universal law
cosmic permission
planetary balance
gravitational modulation

description: The AKS Gravity is not a theory born in academic labs but in moments of stillness, observation, and intuitive reflection.

It explores the idea that gravity is not merely a pulling force but a cosmic permission — a directive power that determines how, when, and where motion happens. This concept suggests that the universe doesn’t just allow movement but orchestrates it based on unseen principles and conscious dynamics.

This paper is a symbolic revelation that connects science with sensation, engineering with insight, and the seen with the unseen.

It is authored by Avish Kumar Singh, an independent researcher and the visionary behind LuminaraX, a futuristic ecosystem merging AI, blockchain, and universal consciousness.

This work is meant to be a starting point — not just for understanding gravity differently, but for feeling the universe more truthfully.
International Television Flow Project, 1977 : European Data
Creators: name: Johnson, J. H.
name: International Television Flow Project, European Regional Study
name: Chapman, G. P.
Publisher: name: UK Data Service
Year: 1984

description: The aims of the European Regional Project are:
 (1) to acquire and publish in collated form the data set on international traffic in television material into and within West Europe in 1977.
 (2) to analyse the structure of these flows using a rigorous methodology and a detailed classification scheme.
 (3) to relate the structure of flows as far as possible to the institutional, technical and other constraints which affect them.
Self-focused attention in depression and its relationship to internal self discrepancies and rumin
Creators: name: Frizzell, Beverly Jean
Publisher: name: University of Calgary
Year: 1990
Subjects: subject: BF 575 S75 F733 1990
subject: Depression, Mental
subject: Decision - making
subject: Self - perception
subject: Alberta - Calgary - Population, Women

description: Bibliography: p. 174-199.
description: offsite
Calcineurin in the heart- New horizons for an old friend.pdf
Creators: name: Rothermel, Beverly
Publisher: name: figshare
Year: 2023
Subjects: Signal transduction

description: Here, we will review the basics of calcineurin structure, regulation, and function in the context of cardiac biology. Particular attention will be given to: the development of improved tools to identify and validate new calcineurin substrates; recent studies identifying new calcineurin isoforms with unique properties and targeting mechanisms; and the role of calcineurin in cardiac development and regeneration.
Test-space characterizations of some classes of Banach spaces
Creators: name: Ostrovskii, Mikhail I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 46B07 (Primary) 05C12, 46B85, 54E35 (Secondary)

description: Let $\mathcal{P}$ be a class of Banach spaces and let $T=\{T_α\}_{α\in A}$ be a set of metric spaces. We say that $T$ is a set of {\it test-spaces} for $\mathcal{P}$ if the following two conditions are equivalent: (1) $X\notin\mathcal{P}$; (2) The spaces $\{T_α\}_{α\in A}$ admit uniformly bilipschitz embeddings into $X$. The first part of the paper is devoted to a simplification of the proof of the following test-space characterization obtained in M.I. Ostrovskii [Different forms of metric characterizations of classes of Banach spaces, Houston J. Math., to appear]: For each sequence $\{X_m\}_{m=1}^\infty$ of finite-dimensional Banach spaces there is a sequence $\{H_n\}_{n=1}^\infty$ of finite connected unweighted graphs with maximum degree 3 such that the following conditions on a Banach space $Y$ are equivalent: (A) $Y$ admits uniformly isomorphic embeddings of $\{X_m\}_{m=1}^\infty$; (B) $Y$ admits uniformly bilipschitz embeddings of $\{H_n\}_{n=1}^\infty$. The second part of the paper is devoted to the case when $\{X_m\}_{m=1}^\infty$ is an increasing sequence of spaces. It is shown that in this case the class of spaces given by (A) can be characterized using one test-space, which can be chosen to be an infinite graph with maximum degree 3.
Longitudinal Study from Middle School to 14+ of Some Factors Affecting the Development and Stability of English Pupils' Interest in Science and Science Subject Choices, 1976-1978
Creators: name: Bottomley, J. M.
Publisher: name: UK Data Service
Year: 1984

description: The purpose of this study was to examine the development of English pupils' attitudes to science from the time they left their middle schools until they chose science options at 14 plus. The pupils attended 3 grammar schools and a secondary modern school.
0097 Georg Schmidt und die Frage der künstlerischen Werte
Creators: name: Fayet, Roger
Publisher: name: RIHA Journal
Year: 2014

description: As a theorist and curator, the Swiss art historian Georg Schmidt (1896-1965), director of the Kunstmuseum Basel from 1939 to 1961, developed a decidedly normative approach to art history, based on a philosophy which measures history in terms of social and artistic progress. This normative axiom also governs Schmidt's theory of realism, a concept he associates with "concern for reality" and progressive, democratic views, but not with formal considerations. His notion of kitsch, directly derived from this theory, broadly corresponds to what Schmidt calls "idealistic naturalism", a varnished depiction of reality which applies the formal devices of naturalism. Unlike contemporaries such as Konrad Farner and Georg Lukács, Schmidt combines a sociological with a psychological perspective, a method reflected in the monograph of 1942 on Ferdinand Hodler.
description: RIHA Journal, 2014: RIHA Journal
Undergraduate Income and Expenditure Survey, 1982-1983
Creators: name: Polytechnic Of North London, Survey Research Unit
name: National Union Of Students
name: Ring, A. J.
name: Goring, R.
name: Hall, J. F.
name: Saxby, J.
Publisher: name: UK Data Service
Year: 1984

description: The Office of Population Censuses and Surveys (OPCS) carried out a survey in 1974/75 on behalf of the Department of Education and Science (DES) and Scottish Education Department (SED). The stated purpose of the survey was to `obtain information about students income and expenditure....which could help to provide the factual basis needed for reviewing the system of mandatory grants....This information could be used in the annual updating of awards to ensure that the levels of grant were more directly related to students actual income and expenditure patterns'.
 The full report was not published until 1979 and coincided with a change of Government. There is no evidence that the findings of the survey were ever acted upon. The National Union of Students considered that a review of the mandatory award system was necessary, based on students actual needs, but bearing in mind the changes in Education and the erosion of the value of the grant in recent years, realised that the figures and findings of the OPCS report were out of date. In November 1982, the NUS commissioned this survey.
 The main purpose of the survey was to replicate the earlier OPCS survey, so far as resources would allow, and the methods used by OPCS were therefore broadly adapted, particularly in sample design.
Avalanche amplification of a single exciton in a semiconductor nanowire
Creators: name: Bulgarini, Gabriele
name: Reimer, Michael E.
name: Hocevar, Moïra
name: Bakkers, Erik P. A. M.
name: Kouwenhoven, Leo P.
name: Zwiller, Val
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Interfacing single photons and electrons is a crucial ingredient for sharing quantum information between remote solid-state qubits. Semiconductor nanowires offer the unique possibility to combine optical quantum dots with avalanche photodiodes, thus enabling the conversion of an incoming single photon into a macroscopic current for efficient electrical detection. Currently, millions of excitation events are required to perform electrical read-out of an exciton qubit state. Here we demonstrate multiplication of carriers from only a single exciton generated in a quantum dot after tunneling into a nanowire avalanche photodiode. Due to the large amplification of both electrons and holes (> 10^4), we reduce by four orders of magnitude the number of excitation events required to electrically detect a single exciton generated in a quantum dot. This work represents a significant step towards single-shot electrical read-out and offers a new functionality for on-chip quantum information circuits.
Galaxy And Mass Assembly (GAMA): Galaxy environments and star formation rate variations
Creators: name: Wijesinghe, D. B.
name: Hopkins, A. M.
name: Brough, S.
name: Taylor, E. N.
name: Norberg, P.
name: Bauer, A.
name: Brown, M. J. I.
name: Cameron, E.
name: Conselice, C. J.
name: Croom, S.
name: Driver, S.
name: Grootes, M. W.
name: Jones, D. H.
name: Kelvin, L.
name: Loveday, J.
name: Pimbblet, K. A.
name: Popescu, C. C.
name: Prescott, M.
name: Sharp, R.
name: Baldry, I.
name: Sadler, E. M.
name: Liske, J.
name: Robotham, A. S. G.
name: Bamford, S.
name: Bland-Hawthorn, J.
name: Gunawardhana, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a detailed investigation into the effects of galaxy environment on their star formation rates (SFR) using galaxies observed in the Galaxy and Mass Assembly Survey (GAMA). We use three independent volume-limited samples of galaxies within z < 0.2 and Mr < -17.8. We investigate the known SFR-density relationship and explore in detail the dependence of SFR on stellar mass and density. We show that the SFR-density trend is only visible when we include the passive galaxy population along with the star-forming population. This SFR-density relation is absent when we consider only the star-forming population of galaxies, consistent with previous work. While there is a strong dependence of the EWH?a on density we find, as in previous studies, that these trends are largely due to the passive galaxy population and this relationship is absent when considering a "star-forming" sample of galaxies. We find that stellar mass has the strongest influence on SFR and EWH?a with the environment having no significant effect on the star-formation properties of the star forming population. We also show that the SFR-density relationship is absent for both early and late-type star-forming galaxies. We conclude that the stellar mass has the largest impact on the current SFR of a galaxy, and any environmental effect is not detectable. The observation that the trends with density are due to the changing morphology fraction with density implies that the timescales must be very short for any quenching of the SFR in infalling galaxies. Alternatively galaxies may in fact undergo predominantly in-situ evolution where the infall and quenching of galaxies from the field into dense environments is not the dominant evolutionary mode.
description: 15 pages, 35 figures, accepted by MNRAS
PSST Package of Simple Statistical Tests, 1973
Creators: name: Ingleby, J. D.
Publisher: name: UK Data Service
Year: 1984

description: PSST has been written for the user who has a set of measures on a sample of cases and wishes to look at the differences or associations between pairs of variables: it caters for the assortment of measures which are common in psychological or sociological research (classifications, ranking scales and interval scales). The user specifies any pair of variables whose relationship he wishes to examine, and the program selects statistical tests according to whether it is the difference or the association between variables which is to be tested, and the nature of the variables in each pair. Significance levels are given, as well as two-way tables (where practicable). The user may also obtain a printout and tabulation of selected variables. `Dud' scores may be catered for, and new variables can be created from the data read in (`transgeneration'). The limits on the number of cases and variables are set only by the amount of core store available on the computer; unlike most packaged programs, this one automatically re-writes its own storage declarations according to the user's requirements. This procedure has the added advantage of ensuring that the absolute minimum of core store is used, which can reduce computing costs.
 The statistical tests available are Mann-Whitney's U, Wilcoxon's T, Chi-squared, Kendall's tau, Product- moment Correlation, Goodman and Kruskal's Gamma, and t-tests. In most cases more than one test is used. This allows the user to compare the power of different tests in handling various types of data: the user should not, of course, adopt a policy of simply quoting the most significant statistic on each occasion.
Rational morphisms between quasilinear hypersurfaces
Creators: name: Scully, Stephen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11E04, 11E76, 14E05, 15A03

description: We prove analogues of several well-known results concerning rational morphisms between quadrics for the class of so-called quasilinear $p$-hypersurfaces. These hypersurfaces are nowhere smooth over the base field, so many of the geometric methods which have been successfully applied to the study of projective homogeneous varieties over fields cannot be used. We are therefore forced to take an alternative approach, which is partly facilitated by the appearance of several non-traditional features in the study of these objects from an algebraic perspective. Our main results were previously known for the class of quasilinear quadrics. We provide new proofs here, because the original proofs do not immediately generalise for quasilinear hypersurfaces of higher degree.
Polarity control of carrier injection at ferroelectric/metal interfaces for electrically switchable diode and photovoltaic effects
Creators: name: Lee, Daesu
name: Baek, S. H.
name: Kim, T. H.
name: Yoon, J. -G.
name: Folkman, C. M.
name: Eom, C. B.
name: Noh, T. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigated a switchable ferroelectric diode effect and its physical mechanism in Pt/BiFeO3/SrRuO3 thin-film capacitors. Our results of electrical measurements support that, near the Pt/BiFeO3 interface of as-grown samples, a defective layer (possibly, an oxygen-vacancy-rich layer) becomes formed and disturbs carrier injection. We therefore used an electrical training process to obtain ferroelectric control of the diode polarity where, by changing the polarization direction using an external bias, we could switch the transport characteristics between forward and reverse diodes. Our system is characterized with a rectangular polarization hysteresis loop, with which we confirmed that the diode polarity switching occurred at the ferroelectric coercive voltage. Moreover, we observed a simultaneous switching of the diode polarity and the associated photovoltaic response dependent on the ferroelectric domain configurations. Our detailed study suggests that the polarization charge can affect the Schottky barrier at the ferroelectric/metal interfaces, resulting in a modulation of the interfacial carrier injection. The amount of polarization-modulated carrier injection can affect the transition voltage value at which a space-charge-limited bulk current-voltage (J-V) behavior is changed from Ohmic (i.e., J ~ V) to nonlinear (i.e., J ~ V^n with n \geq 2). This combination of bulk conduction and polarization-modulated carrier injection explains the detailed physical mechanism underlying the switchable diode effect in ferroelectric capacitors.
description: Accepted for publication in Phys. Rev. B
Symmetries of finite Heisenberg groups for k-partite systems
Creators: name: Korbelar, M.
name: Tolar, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Symmetries of finite Heisenberg groups represent an important tool for the study of deeper structure of finite-dimensional quantum mechanics. This short contribution presents extension of previous investigations to composite quantum systems comprised of k subsystems which are described with position and momentum variables in Z_{n_i}, i=1,...,k. Their Hilbert spaces are given by k-fold tensor products of Hilbert spaces of dimensions n_1,...,n_k. Symmetry group of the corresponding finite Heisenberg group is given by the quotient group of a certain normalizer. We provide the description of the symmetry groups for arbitrary multipartite cases. The new class of symmetry groups represents very specific generalization of finite symplectic groups over modular rings.
description: 6 pages, to appear in Proceedings of QTS7 "Quantum Theory and Symmetries 7", Prague, August 7-13, 2011
title: Universitätsbibliothek Marburg Ms. 591: Messlektionar - Johannes von Neumarkt
Creators: name: Johannes, von Neumarkt
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Manuscripts & rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion von: [Handschrift] Universitätsbibliothek Marburg Ms. 591: Messlektionar - Johannes von Neumarkt. - 297 Blätter : Illustrationen. - Beschreibstoff: Papier; 30 x 21,5 cm. - Erschienen: [Mitteldeutschland (Hessen?)], [15. Jahrhundert, 1. Viertel]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 591. - Bemerkungen: Frühere Signatur: Mscr. 591. Ausführliche Beschreibung: Heyne, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg; Wiesbaden : Harrassowitz, 2002; S. 278-280. - Digitalisiert 2023
Medical Careers, 1976
Creators: name: Nuffield Centre For Health Services Studies
name: Johnson, M. L.
name: Elston, M. A.
Publisher: name: UK Data Service
Year: 1984

description: The purpose of this study was to examine the career development of a sample of English medical graduates to assess:
 (i) the influences of career outcome and the interaction between professional career and other aspects of life development;
 (ii) the implication of these influences for medical manpower planning and the structure of medical care;
 (iii) the level and nature of doctors' involvement in decision making and policy within and outside medical care.
Thomas Bayrle: 'Grafik-Mäntel', 20. bis 25. Januar 1968 / Thomas Bayrle: 'Grafik-Mäntel', Januar 20 to 25, 1968
Creators: name: Behn, Helga
Publisher: name: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts
Year: 2020

description: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts, No 31 (2020): Sediment
Elderly in the Community, 1979
Creators: name: Wenger, G. C., University College Of North Wales (Bangor), Department Of Social Theory And Institutions
Publisher: name: UK Data Service
Year: 1984

description: This study was designed to consider the available support and help which people in rural communities have access to and to ascertain the extent of informal support networks and the degree of involvement of statutory services together with finding out the problems which old people might have in terms of access to services, mobility, transport etc. At the same time, the study aimed to look at subjective responses to their situation in terms of morale, loneliness and isolation. The study was funded by the DHSS and was intended to inform social policy.
Vacuum-Induced Transparency
Creators: name: Tanji-Suzuki, Haruka
name: Chen, Wenlan
name: Landig, Renate
name: Simon, Jonathan
name: Vuletic, Vladan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Photons are excellent information carriers but normally pass through each other without consequence. Engineered interactions between photons would enable applications from quantum information processing to simulation of condensed matter systems. Using an ensemble of cold atoms strongly coupled to an optical cavity, we demonstrate experimentally that the transmission of light through a medium may be controlled with few photons and even by the electromagnetic vacuum field. The vacuum induces a group delay of 25 ns on the input optical pulse, corresponding to a light velocity of 1600 m/s, and a transparency of 40% that increases to 80% when the resonator is filled with 10 photons. This strongly nonlinear effect provides prospects for advanced quantum devices such as photon-number-state filters.
description: 13 pages, 4 figures
André Thomkins: Objekte aus Gummi und Palindrome, 8. Februar bis 6. März 1969), Domstrasse 81 / André Thomkins: (February 8 to March 6, 1969)
Creators: name: Behn, Helga
Publisher: name: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts
Year: 2020

description: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts, No 31 (2020): Sediment
Reentrant enhancement of quantum fluctuations for symmetric environmental coupling
Creators: name: Cuccoli, Alessandro
name: Del Sette, Niccolò
name: Vaia, Ruggero
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The `system-plus-reservoir' (SPR) model is the most common and effective approach to study quantum dissipative effects. Indeed, it makes quantization possible by considering the whole energy-conserving system, while the reservoir's degrees of freedom, assumed to be harmonic, can be `traced out' by the path-integral technique, leading to a formulation that only includes the system of interest. In the standard SPR model the environment is only coupled with the system's coordinate and turns out to quench its quantum fluctuations. However, there are physical systems coupled with an environment whose `coordinates' and `momenta' can be completely interchangeable (e.g., magnets), so an SPR coupling must symmetrically affect both canonical variables. In this paper such a general environmental coupling is studied in the case of a harmonic oscillator. It is found that quantum fluctuations are generally enhanced by environmental coupling, with an unexpected nonmonotonic behavior. This leads one to speculate about the possibility that spin-lattice coupling could drive the 2D Heisenberg antiferromagnet to reach its quantum-critical point.
description: 11 pages, 10 figures
Paleocoastlines GIS dataset
Creators: name: Zickel, Mirijam
name: Becker, Daniel
name: Verheul, Jan
name: Yasa Yener
name: Willmes, Christian
Publisher: name: CRC806-Database
Year: 2016
Subjects: bathymetry
coastline
glaciation
hydrology
paleoenvironment
sealevel

description: This GIS dataset contains 23 different modelled land masks of characteristic sea level high stand/ low stand for events and intervals during a period from 140 ka until today in Europe, the Nearer East and northern parts of Africa. The sea level data was collected from data published in scholarly works and GIS proceeded using GIS software QGIS and ArcMap also as GEBCO DEM.
Isle of Sheppey Survey, 1981: Divisions of Labour
Creators: name: Courtenay, G.
name: Pahl, R. E.
name: Wallace, C. D.
Publisher: name: UK Data Service
Year: 1984

description: The main aims of the study were to link households, forms of labour which they deploy in getting work done and the sources of labour outside the household on which they draw to provide them with various services. These distinctive patterns of work are called household work strategies which, in turn, are linked to the domestic division of labour and broader patterns of social and political behaviour.
 An associated qualitative dataset, The Social and Political Implications of Household Work Strategies, is available via Qualidata at the University of Essex.
Geomorphology and sedimentology of the lower delta plain and subaqueous delta plain of the Athabas
Creators: name: Gorecki, Richard C.
Publisher: name: University of Calgary
Year: 1990
Subjects: subject: GB 428.5 C3 G65 1990
subject: Geomorphology - Alberta - Athabasca River
subject: Sedimentation and deposition - Alberta - Athabasca River
subject: Deltas - Alberta - Athabasca River
subject: Alberta - Athabasca River Delta - Geomorphology

description: Bibliography: p. 182-195.
description: offsite
Wolf Vostell: 'Ruhender Verkehr', 2. bis 29. Oktober 1969, Domstrasse 81 / Wolf Vostell: 'Ruhender Verkehr' (Stationary Traffic), October 2 to 29, 1969
Creators: name: Behn, Helga
Publisher: name: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts
Year: 2020

description: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts, No 31 (2020): Sediment
Conventional Religion and Common Religion in Leeds, 1982
Creators: name: Krarup, H. E.
name: Toon, R. J.
name: Towler, R. C.
Publisher: name: UK Data Service
Year: 2013

description: The aim of this study was to investigate the religious practice, experience and belief in the northern industrial city of Leeds. Particular emphasis was placed on the religiousness which falls outside the normal scope of Christian denominations, including `common religion', and this was studied both in the general survey and also in additional interviews in depth.
Aktion 'Wir betreten den Kunstmarkt', 12. Oktober 1970 / The Action 'Wir betreten den Kunstmarkt' (We’re Going into the Kunstmarkt), Oct. 12, 1970
Creators: name: Renswou, Brigitte Jacobs Van
Publisher: name: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts
Year: 2020

description: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts, No 31 (2020): Sediment
Le Cliche et la poesie: autour du Portrait d'un inconnu de Nathalie Sarraute
Creators: name: Gourley, Sharon
Publisher: name: University of Calgary
Year: 1990
Subjects: subject: PN 98 S46 G68 1990
subject: Semiotics and literature
subject: Sarraute, Nathalie. Portrait d'un inconnu

description: Bibliography: p. 119-122.
Almost contact B-metric manifolds with curvature tensors of Kähler type
Creators: name: Manev, Mancho
name: Ivanova, Miroslava
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C05, 53C15, 53C50

description: On 5-dimensional almost contact B-metric manifolds, the form of any Kähler-type tensor (i.e. a tensor satisfying the properties of the curvature tensor of the Levi-Civita connection in the special class of the parallel structures on the manifold) is determined. The associated 1-forms are derived by the scalar curvatures of the Kähler-type tensor for the canonical connection on the manifolds from the main classes with closed 1-forms.
description: 12 pages
Strongdeco: Expansion of analytical, strongly correlated quantum states into a many-body basis
Creators: name: Juliá-Díaz, B.
name: Graß, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We provide a Mathematica code for decomposing strongly correlated quantum states described by a first-quantized, analytical wave function into many-body Fock states. Within them, the single-particle occupations refer to the subset of Fock-Darwin functions with no nodes. Such states, commonly appearing in two-dimensional systems subjected to gauge fields, were first discussed in the context of quantum Hall physics and are nowadays very relevant in the field of ultracold quantum gases. As important examples, we explicitly apply our decomposition scheme to the prominent Laughlin and Pfaffian states. This allows for easily calculating the overlap between arbitrary states with these highly correlated test states, and thus provides a useful tool to classify correlated quantum systems. Furthermore, we can directly read off the angular momentum distribution of a state from its decomposition. Finally we make use of our code to calculate the normalization factors for Laughlin's famous quasi-particle/quasi-hole excitations, from which we gain insight into the intriguing fractional behavior of these excitations.
description: Accepted in Computer Physics Communications. The code will be available at the journal or upon request by email
Consumer Concerns, 1979-1980
Creators: name: National Consumer Council
name: Research Services Limited
Publisher: name: UK Data Service
Year: 1984

description: The aim of this study was to enable the National Consumer Council to represent consumers more effectively by:
 (a) highlighting areas of major concern to consumers;
 (b) collecting information about consumers' problems that would enable the NCC to press for action to further consumers' interests;
 (c) providing information to others in the consumer movement.
Die lateinische Abstammung des Kardinals Nikolaus von Cusa
Creators: name: Kentenich, Gottfried
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 2 Nr. 4 (1927): Trierer Zeitschrift : Vierteljahreshefte für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
MSC/PSI Cohort Study of the Unemployed Flow, 1980-1982
Creators: name: Policy Studies Institute
Publisher: name: UK Data Service
Year: 1984

description: This study is a major longitudinal survey of 8000 people who came into unemployment in May 1980. Five stages of interviewing were carried out, the final stage taking place at the end of 1982. At each stage of interviewing, people who had found work were dropped from the cohort, after completing a schedule which recorded details of their new jobs. A follow-up survey was carried out of people who were dropped from the cohort at one of the first three stages.
"Personal mythologies": a written accompaniment to the thesis exhibition
Creators: name: Abrahamson, Kirsten
Publisher: name: University of Calgary
Year: 1990
Subjects: subject: ND 249 A37 A37 1990
subject: Abrahamson, Kirsten - Exhibitions
subject: Artists - Canada - Exhibitions
subject: Women artists - Canada - Exhibitions

description: Bibliography: p. 70-71.
Steady-state properties of coupled hot and cold Ising chains
Creators: name: Lavrentovich, Maxim O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recently, the author and Zia (2010) reported on exact results for a far-from-equilibrium system in which two coupled semi-infinite Ising chains at temperatures $T_h$ and $T_c$, with $T_h>T_c$, establish a flux of energy across their junction. This paper provides a complete derivation of those results, more explicit expressions for the energy flux, and a more detailed characterization of the system at arbitrary $T_c$ and $T_h$. We consider the two-point correlation functions and the energy flux $F(x)$ between each spin, located at integer position $x$, and its associated heat bath. In the $T_h \rightarrow \infty$ limit, the flux $F(x)$ decays exponentially into the cold bath (spins with $x=1,2,...$) for all $T_c>0$ and transitions into a power law decay as $T_c \rightarrow 0$. We find an asymptotic expansion for large $x$ in terms of modified Bessel functions that captures both of these behaviors. We perform Monte Carlo simulations that give excellent agreement with both the exact and asymptotic results for $F(x)$. The simulations are also used to study the system at arbitrary $T_h$ and $T_c$.
description: 27 pages, 8 figures, submitted to J. Phys. A
Elucidation of the anomalous A = 9 isospin quartet behaviour
Creators: name: Brodeur, M.
name: Brunner, T.
name: Ettenauer, S.
name: Lapierre, A.
name: Ringle, R.
name: Brown, B. A.
name: Lunney, D.
name: Dilling, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent high-precision mass measurements of $^{9}$Li and $^{9}$Be, performed with the TITAN Penning trap at the TRIUMF ISAC facility, are analyzed in light of state-of-the-art shell model calculations. We find an explanation for the anomalous Isobaric Mass Multiplet Equation (IMME) behaviour for the two $A$ = 9 quartets. The presence of a cubic $d$ = 6.3(17) keV term for the $J^π$ = 3/2$^{-}$ quartet and the vanishing cubic term for the excited $J^π$ = 1/2$^{-}$ multiplet depend upon the presence of a nearby $T$ = 1/2 state in $^{9}$B and $^{9}$Be that induces isospin mixing. This is contrary to previous hypotheses involving purely Coulomb and charge-dependent effects. $T$ = 1/2 states have been observed near the calculated energy, above the $T$ = 3/2 state. However an experimental confirmation of their $J^π$ is needed.
description: 5 pages, 2 figures
Der Trierer "Römersprudel", eine Heilquelle aus römischer Zeit
Creators: name: Gose, Erich
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 20 Nr. 1/2 (1951): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete