cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
National Opinion Polls National Political Surveys; March 1968
March 1968
Creators: name: NOP Market Research Limited
Publisher: name: UK Data Service
Year: 1981

description: The NOP National Political Surveys were designed principally to ascertain public opinion on political parties, leaders and government, and to record voting intention. In addition, the majority of the surveys included data of topical interest and of social importance.
More on Tanaka-Tagoshi Parametrization of post-1PN Spin-Free Gravitational Wave Chirps: Equispaced and Cardinal Interpolated Lattices
Creators: name: Croce, R. P.
name: Demma, Th.
name: Pierro, V.
name: Pinto, I. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The conclusions obtained in gr-qc/0101067 are shown to be valid also if the full 2.5PN expansion of the chirp phase is used.
description: 2 pages, 1 table, 3 figures, submitted to Phys. Rev. D as Brief Report
Orthogonality relations for triple modes at dielectric boundary surfaces
Creators: name: Hammer, Hanno
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We work out the orthogonality relations for the set of Carniglia-Mandel triple modes which provide a set of normal modes for the source-free electromagnetic field in a background consisting of a passive dielectric half-space and the vacuum, respectively. Due to the inherent computational complexity of the problem, an efficient strategy to accomplish this task is desirable, which is presented in the paper. Furthermore, we provide all main steps for the various proofs pertaining to different combinations of triple modes in the orthogonality integral.
description: 15 pages
Public investment in agricultural research and development in Australia remains a sensible policy option
Creators: name: Mullen, John D.
name: Mullen, John D.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Farm Management
subject: total factor productivity
subject: returns to research
subject: crowding out

description: There is evidence that productivity in Australia’s broadacre agriculture (extensive cropping and livestock industries) has been slowing in the past decade. A series of poor seasons has been partly responsible, but an econometric analysis of structural changes in the trend of total factor productivity (TFP) indicates that stagnant public investment in agricultural R&D has also made a significant contribution to this slowdown in TFP. Related econometric analysis of the returns to public investment in agricultural R&D in the broadacre sector confirms that the rate of return to investment remains high. Despite these findings, a recent enquiry by Australia’s Productivity Commission into the financing of rural research suggests that the public sector may be ‘crowding out’ private sector investment in agricultural R&D and recommends a reduction in public support. In this paper I briefly review the econometric analyses to date and the trends in TFP and public R&D investment. While I have not been able to conclusively test the ‘crowding out’ hypothesis, there seems to be little empirical evidence to prefer this hypothesis to a more traditional ‘market failure’ hypothesis. Clearly, stakeholders in agricultural R&D in Australia have to do a better job in communicating the case for public investment in agricultural R&D. Other developed countries are experiencing the same phenomenon and it may become an issue in the future for developing countries in Asia.
Stability of rotating black holes in Einstein dilaton Gauss-Bonnet gravity
Creators: name: Okounkova, Maria
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order to perform model-dependent tests of general relativity with gravitational wave observations, we must have access to numerical relativity binary black hole waveforms in theories beyond general relativity (GR). In this study, we focus on order-reduced Einstein dilaton Gauss-Bonnet gravity (EDGB), a higher curvature beyond-GR theory with motivations in string theory. The stability of single, rotating black holes in EDGB is unknown, but is a necessary condition for being able to simulate binary black hole systems (especially the early-inspiral and late ringdown stages) in EDGB. We thus investigate the stability of rotating black holes in order-reduced EDGB. We evolve the leading-order EDGB scalar field and EDGB spacetime metric deformation on a rotating black hole background, for a variety of spins. We find that the EDGB metric deformation exhibits linear growth, but that this level of growth exponentially converges to zero with numerical resolution. Thus, we conclude that rotating black holes in EDGB are numerically stable to leading-order, thus satisfying our necessary condition for performing binary black hole simulations in EDGB.
description: 4 pages, 5 figures
Private sector investment in agricultural research and development in Australia
Creators: name: Keogh, Mick
name: Keogh, Mick
Publisher: name: Unknown
Year: 2012
Subjects: subject: Farm Management
subject: agriculture
subject: research and development
subject: public sector
subject: private sector

description: There is growing recognition that the private sector is playing an increasingly important role in agricultural research and development internationally, and in Australia. There are only very limited data available about the extent of private sector research and development (R&D) investment that is occurring in Australia, and the nature of that investment. This paper reports the results of a survey and data review that was carried out to gain a better understanding of private sector agricultural R&D investment in Australia. The survey, whilst limited, suggests that private sector agricultural R&D investment in Australia is more significant than previously reported, and that private sector investors see public sector investment in this area as complementary, rather than competitive.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-13)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-14)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
On games with coordinating and anti-coordinating agents
Creators: name: Vanelli, Martina
name: Arditti, Laura
name: Como, Giacomo
name: Fagnani, Fabio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Multiagent Systems (cs.MA)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences
subject: 91A06, 91A10, 91A13, 91A40

description: This work studies Nash equilibria for games where a mixture of coordinating and anti-coordinating agents, with possibly heterogeneous thresholds, coexist and interact through an all-to-all network. Whilst games with only coordinating or only anti-coordinating agents are potential, also in the presence of heterogeneities, this does not hold when both type of agents are simultaneously present. This makes their analysis more difficult and existence of Nash equilibria not guaranteed. Our main result is a checkable condition on the threshold distributions that characterizes the existence of Nash equilibria in such mixed games. When this condition is satisfied an explicit algorithm allows to determine the complete set of such equilibria. Moreover, for the special case when only one type of agents is present (either coordinating or anti-coordinating), our results allow an explicit computation of the cardinality of Nash equilibria.
description: 8 pages, 6 figures
RXTE All-Sky Monitor Detection of the Orbital Period of Scorpius X-1
Creators: name: Vanderlinde, Keith W.
name: Levine, Alan M.
name: Rappaport, Saul A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The orbital period of Scorpius X-1 has been accepted as 0.787313 d since its discovery in archival optical photometric data by Gottlieb, Wright, & Liller (1975). This period has been confirmed in both photometric and spectroscopic optical observations, though to date only marginal evidence has been reported for modulation of the X-ray intensity at that period. We have used data taken with the RXTE All Sky Monitor to search for such a modulation. A major difficulty in detecting the orbit in X-ray data is presented by the flaring behavior of Sco X-1, which contributes white noise to Fourier transforms of the intensity time series, and tends to obscure weak modulations. We present a new technique for substantially reducing the effects of the flaring behavior while retaining much of any periodic orbital modulation, provided only that the two temporal behaviors exhibit different spectral signatures. Through such a search, we have found evidence for orbital modulation at about the 1% level with a period of 0.78893 d, equal within our accuracy to a period which differs by 1 cycle per year from the accepted value. If we compare our results with the period of the 1 year sideband cited by Gottlieb et al. we conclude that the actual period may be 0.78901 d.
description: AASTeX, 20 pages, 5 Postscript figures
Environment protection: challenges for future farming
Creators: name: Pannell, David J.
name: Pannell, David J.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Farm Management
subject: environment
subject: community expectations
subject: water policy
subject: carbon farming

description: There has been increased public demand for environment protection, including in rural areas. Government programs and policies have responded to these demands in various ways, such as by attempting to increase farmer awareness of environmental issues, increasing budgets for rural environmental programs, increasing environmental regulation, purchasing water from irrigators for environmental purposes, and encouraging farmer adoption of new environmentally friendly practices. These changes create a number of challenges for farmers, including challenges related to maintaining farm productivity, meeting community expectations, living with less water and evaluating new opportunities. These challenges are described and discussed. While there certainly are challenges, it is concluded that they are not insurmountable.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-15)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-16)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-17)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-18)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Modeling Land Use Pattern Change Analysis in the Northern Great Plains: A Novel Approach
Creators: name: Parvez, Md Rezwanul
name: Ripplinger, David
name: Maduraperuma, Buddhika
name: Parvez, Md Rezwanul
name: Ripplinger, David
name: Maduraperuma, Buddhika
Publisher: name: Unknown
Year: 2015
Subjects: subject: Land Economics/Use
subject: Land Use

description: The issue of land use/cover (LCLU) change has become a critical field of investigation for economists. This research is designed to present the underlying causes of land use change due to macroeconomic factors and economic growth in Northern Great Plains (NGP) area. This paper introduces a holistic approach that incorporates spatial econometric modeling and geo-spatial modeling to examine the relation between areas of land use change and level of economic activity. The economic component of this study consider panel data sets (both time series and cross section) and the primary sources of data are National Resources Inventory (land use classes), bureau of economic analysis (GDP per capita data), and U.S. census (population density data). A spatial econometric model (Fixed Effect Model) is used to better understand the relationships between areas in land uses and macroeconomic factors influencing change in land use pattern during 1992-2007 time period. The U.S. Geological Survey (USGS) National Land Cover Database (NLCD) is also used here for land use mapping and modeling. The geo-spatial component of this research estimates first-order Markov chain Monte Carlo simulation(MCMC) to calculate transitional probabilities for explaining spatial and temporal patterns of land conversion. The cross sectional analysis reveal the inverse relationship between area of land uses and level of economic activity, as measured by GDP per capita. Also, the fixed effect model indicates the same inverse relation between economic growth and land use change. Key findings also indicate high conversion of urban land and population growth rates have led to an increasingly fragmented land use pattern in the area. Markov chain simulation results for the region also illustrate a change in land use pattern and forest to non-forest conversion over a sixteen year time period.
Detection and Implications of a Time-reversal breaking state in underdoped Cuprates
Creators: name: Simon, M. E.
name: Varma, C. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present general symmetry considerations on how a Time-reversal breaking state may be detected by angle-resolved photoemission using circularly polarized photons as has been proposed earlier. Results of recent experiments utilizing the proposal in underdoped cuprates are analysed and found to be consistent in their symmetry and magnitude with a theory of the Copper-Oxides. These togather with evidence for a quantum critical point and marginal Fermi-liquid properties near optimum doping suggest that a valid microscopic theory of the phenomena in the cuprates has been found.
description: A statement on detecting the Anyon state is added and some typos are subtracted
On amplitude oscillation of vibrations of strongly anisotropic high-temperature superconductors of BiPbSrCaCuO system
Creators: name: Chigvinadze, J. G.
name: Iashvili, A. A.
name: Machaidze, T. V.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Effect of oscillations of the vibration amplitude of cylindrical sample suspended by a thin elastic thread and vibrating in a transverse magnetic field and containing 2D quasi-two-dimensional vortices (pancakes), was observed in the strongly anisotropic high-$T_{c}$ superconductor of $Bi_{1.7}Pb_{0.3}Sr_{2}Ca_{2}Cu_{3}O_{y}$ system.
description: 8 pages, 7 figures
Marginal triviality of the scaling limits of critical 4D Ising and $ϕ_4^4$ models
Creators: name: Aizenman, Michael
name: Duminil-Copin, Hugo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that the scaling limits of spin fluctuations in four-dimensional Ising-type models with nearest-neighbor ferromagnetic interaction at or near the critical point are Gaussian. A similar statement is proven for the $λϕ^4$ fields over $\mathbb{R}^4$ with a lattice ultraviolet cutoff, in the limit of infinite volume and vanishing lattice spacing. The proofs are enabled by the models' random current representation, in which the correlation functions' deviation from Wick's law is expressed in terms of intersection probabilities of random currents with sources at distances which are large on the model's lattice scale. Guided by the analogy with random walk intersection amplitudes, the analysis focuses on the improvement of the so-called tree diagram bound by a logarithmic correction term, which is derived here through multi-scale analysis.
description: Revisions include some minor improvements in the presentation of the results of the original paper. Latex, 59 pages, 5 figures
Gravitational self force by mode sum regularization
Creators: name: Barack, Leor
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a practical scheme for calculating the local gravitational self-force experienced by a test mass particle moving in a black hole spacetime. The method---equally effective for either weak or strong field orbits---employs the {\em mode-sum regularization scheme} previously developed for a scalar toy model. The starting point for the calculation, in this approach, is the formal expression for the regularized self-force derived by Mino et al. (and, independently, by Quinn and Wald), which involves a worldline integral over the tail part of the retarded Green's function. This force is decomposed into multipole (tensor harmonic) modes, whose sum is subjected to a carefully designed regularization procedure. This procedure involves an analytic derivation of certain ``regularization parameters'' by means of a local analysis of the Green's function. This manuscript contains the following main parts: (1) Introduction of the mode sum scheme as applied to the gravitational case. (2) Two simple cases studied: the test case of a static particle in flat spacetime, and the case of a particle at a turning point of a radial geodesic in Schwarzschild spacetime. In both cases we derive all necessary regularization parameters. (3) An Analytic foundation is set for applying the scheme in more general cases. (In this paper, the mode sum scheme is formulated within the harmonic gauge. The implementation of the scheme in other gauges shall be discussed in a separate, forthcoming paper.)
description: Latex, 19 pages, accepted for publication in PRD
title: „Wir leben nicht mehr in der Epoche des Faschismus... die wirklichen Konfliktpunkte sind Recht, Humanität, Bildung....“. Ein Interview mit dem Zeithistoriker Lutz Niethammer
Creators: name: Niethammer, Lutz
name: Müller, Yves
name: Rigoll, Dominik
Publisher: name: ZZF - Centre for Contemporary History: Zeitgeschichte online
Year: 2019

description: Lutz Niethammer ist einer der bedeutendsten Zeithistoriker Deutschlands. Bis zu seiner Emeritierung im Jahr 2005 war er Professor für Neuere und Neueste Geschichte an der Friedrich-Schiller-Universität Jena. Im Jahr 1971 wurde er zum Thema Praxis der Entnazifizierung in der US-amerikanischen Besatzungszone promoviert, hatte anschließend Professuren an der Universität Essen und der FernUniversität Hagen inne. Bekannt ist Niethammer als Doyen der Oral History in der Bundesrepublik. Kontroversen löste seine Studie über „die roten Kapos“ aus. Sein erstes Buch ist allerdings in Vergessenheit geraten, zu Unrecht. In der Studie Angepaßter Faschismus (1969) befasste sich der damals noch unbekannte Lutz Niethammer mit der erst 1964 gegründeten Nationaldemokratischen Partei Deutschlands (NPD). Seine Erkenntnisse über das Wesen des „organisierten Nationalismus“ scheinen heute wieder aktuell. Yves Müller und Dominik Rigoll sprachen mit Lutz Niethammer über das vor 50 Jahren erschienene Buch und über gegenwärtige Gefahren für die Demokratie.
National Opinion Polls National Political Surveys; April 1968
April 1968
Creators: name: NOP Market Research Limited
Publisher: name: UK Data Service
Year: 1981

description: The NOP National Political Surveys were designed principally to ascertain public opinion on political parties, leaders and government, and to record voting intention. In addition, the majority of the surveys included data of topical interest and of social importance.
Normalization of breast MRIs using Cycle-Consistent Generative Adversarial Networks
Creators: name: Modanwal, Gourav
name: Vellal, Adithya
name: Mazurowski, Maciej A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Dynamic Contrast Enhanced-Magnetic Resonance Imaging (DCE-MRI) is widely used to complement ultrasound examinations and x-ray mammography during the early detection and diagnosis of breast cancer. However, images generated by various MRI scanners (e.g. GE Healthcare vs Siemens) differ both in intensity and noise distribution, preventing algorithms trained on MRIs from one scanner to generalize to data from other scanners successfully. We propose a method for image normalization to solve this problem. MRI normalization is challenging because it requires both normalizing intensity values and mapping between the noise distributions of different scanners. We utilize a cycle-consistent generative adversarial network to learn a bidirectional mapping between MRIs produced by GE Healthcare and Siemens scanners. This allows us learning the mapping between two different scanner types without matched data, which is not commonly available. To ensure the preservation of breast shape and structures within the breast, we propose two technical innovations. First, we incorporate a mutual information loss with the CycleGAN architecture to ensure that the structure of the breast is maintained. Second, we propose a modified discriminator architecture which utilizes a smaller field-of-view to ensure the preservation of finer details in the breast tissue. Quantitative and qualitative evaluations show that the second proposed method was able to consistently preserve a high level of detail in the breast structure while also performing the proper intensity normalization and noise mapping. Our results demonstrate that the proposed model can successfully learn a bidirectional mapping between MRIs produced by different vendors, potentially enabling improved accuracy of downstream computational algorithms for diagnosis and detection of breast cancer. All the data used in this study are publicly available.
description: Final accepted draft in Computer Methods and Programs in Biomedicine
The Significance of Urban Hierarchy in Explaining Population Dynamics in the United States
Creators: name: Dobis, Elizabeth A.
name: Delgado, Michael S.
name: Florax, Raymond J.G.M
name: Mulder, Peter
name: Dobis, Elizabeth A.
name: Delgado, Michael S.
name: Florax, Raymond J.G.M
name: Mulder, Peter
Publisher: name: Unknown
Year: 2015
Subjects: subject: Community/Rural/Urban Development
subject: population growth
subject: urban hierarchy
subject: spatial lag
subject: hierarchical linear models

description: In much of the literature focusing on the growth and structure of the urban system, the difference between contagious and hierarchical interrelations across cities comprised in the urban system are obfuscated. In this paper, we clearly distinguish and quantify the effects of both. In other words, we focus on how the structure of the urban system influences population growth by using central place theory as a theoretical basis for addressing the research question: what natural and man-made locational characteristics influence population growth? We make three major contributions to the existing literature. First, we utilize a unique dataset of urban areas with decennial observations from 1990 to 2010 which captures the agglomerated economic activity and built extent of urban locations with at least 2,500 inhabitants, to include all but the smallest rural communities. Second, our analysis includes both the hierarchical relationship among cities of differing sizes and the continuous nature of proximity to other cities. The novel use of a spatially-lagged hierarchical linear model allows us to include both these critical aspects of the urban system in our analysis. Third, we include man-made amenities and characteristics of cities, which have been omitted from previous studies in an effort to avoid endogeneity in the analysis. By focusing on the intercept and lagged population variables in the urban area equation, we use this model to empirically explore the debate on whether there is random or deterministic growth in the distribution of cities in the United States.
Realistic fast quantum gates with hot trapped ions
Creators: name: Sasura, Marek
name: Steane, Andrew M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The "pushing gate" proposed by Cirac and Zoller in 2000 for quantum logic in ion traps is discussed, in which a force is used to give a controlled push to a pair of trapped ions and thus realize a phase gate. The original proposal had a weakness in that it involved a hidden extreme sensitivity to the size of the force. Also, the physical origin of this force was not fully addressed. Here, we discuss the sensitivity and present a way to avoid it by choosing the spatial form of the pushing force in an optimal way. We also analyse the effect of imperfections in a pair of pi pulses which are used to implement a "spin-echo" to cancel correlated errors. We present a physical model for the force, namely the dipole force, and discuss the impact of unwanted photon scattering, and of finite temperature of the ions. The main effect of the temperature is to blur the phase of the gate owing to the ions exploring a range of values of the force. When the distance scale of the force profile is smaller than the ion separation, this effect is more important than the high-order terms in the Coulomb repulsion which were originally discussed. Overall, we find that whereas the "pushing gate" is not as resistant to imperfections as was supposed, it remains a significant candidate for ion trap quantum computing since it does not require ground state cooling, and in some cases it does not require the Lamb-Dicke limit, while the gate rate is fast, close to (rather than small compared to) the trap vibrational frequency.
description: 24 pages, 9 figures, revtex4
The Business of Safe Food: An Assessment of the Global Food Safety Certification Industry
Creators: name: Boys, Kathryn A.
name: Caswell, Julie A.
name: Hoffmann, Sandra A.
name: Colarusso, Samantha
name: Boys, Kathryn A.
name: Caswell, Julie A.
name: Hoffmann, Sandra A.
name: Colarusso, Samantha
Publisher: name: Unknown
Year: 2015
Subjects: Agricultural and Food Policy
Food Consumption/Nutrition/Food Safety
Industrial Organization
International Relations/Trade

description: Business and consumer demand for private, third-party, and public systems that audit and certify food safety is growing both domestically and internationally. As it has been proposed that third-party certification systems be used to help assure the safety of imported food products governed by FSMA, demand for these standards is likely to further increase. It is unknown, however, to what extent the food safety certification industry has the capacity to accommodate this expanding demand. This is particularly true of regions where third-party firms which provide audits to food safety standards (certification bodies), do not have a large presence. This study offers a first, in-depth, and comprehensive effort at assessing the industrial organization of global food safety certification industry. Using a unique dataset developed for this study, we inventory the food safety certification industry and the firms that certify individual farms, food processors, and food manufacturers to a broad range of national and international food safety standards. An assessment of the geographic distribution of certification bodies is then undertaken to identify areas in potential need of additional food safety certification capacity. Implications of these findings are considered.
National Opinion Polls National Political Surveys; May 1968
May 1968
Creators: name: NOP Market Research Limited
Publisher: name: UK Data Service
Year: 1981

description: The NOP National Political Surveys were designed principally to ascertain public opinion on political parties, leaders and government, and to record voting intention. In addition, the majority of the surveys included data of topical interest and of social importance.
The Atacama Large Millimeter Array (ALMA)
Creators: name: Wootten, Alwyn
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Atacama Large Millimeter Array, or ALMA, is an international telescope project which will be built over the coming decade in Northern Chile. With over 7000 m^2 of collecting area comprised of 64 12m antennas arrayed over baselines up to 14 km in extent, ALMA will provide images of unprecedented clarity and detail. One revolutionary feature of ALMA will be its ability to combine interferometric and single telescope data, providing complete flux recovery. ALMA will cover a spectral wavelength range from 7mm to 0.3 mm or shorter wavelengths, providing astronomy with its first detailed look at the structures which emit millimeter and submillimeter photons, the most abundant photons in the Universe.
Generality of Starobinsky and Higgs inflation in the Jordan frame
Creators: name: Mishra, Swagat S.
name: Müller, Daniel
name: Toporensky, Aleksey V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the problem of generality of Starobinsky and Higgs inflation. The known results obtained in the Einstein frame are generalized for the case of an arbitrary initial energy of the scalar field. These results are compared with the results obtained directly in the Jordan frame, which, to our knowledge, has not been thoroughly explored in the literature previously. We demonstrate that the qualitative picture of initial conditions zone in the $(ϕ, \dot ϕ)$ plane, which leads to sufficient amount of inflation, is quite similar for both the frames in the case of Higgs inflation. For Starobinsky inflation, the conformal transformation between the frames relates the geometrical variables in the Jordan frame with the properties of an effective scalar field in the Einstein frame. We show that the transformation $(H, R) \to (ϕ, \dot ϕ)$ is not regular everywhere, leading to some peculiarities in the zone of good initial conditions in the $(H, R)$ plane.
description: 15 pages, 8 figures, additional text and references, typos corrected, matches published version in PRD
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1940-08-24)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1940
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Semiclassical Theory of Chaotic Quantum Transport
Creators: name: Richter, Klaus
name: Sieber, Martin
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a refined semiclassical approach to the Landauer conductance and Kubo conductivity of clean chaotic mesoscopic systems. We demonstrate for systems with uniformly hyperbolic dynamics that including off-diagonal contributions to double sums over classical paths gives a weak-localization correction in quantitative agreement with results from random matrix theory. We further discuss the magnetic field dependence. This semiclassical treatment accounts for current conservation.
description: 4 pages, 1 figure
Influence of Sensor Feedback Limitations on Power Oscillation Damping and Transient Stability
Creators: name: Björk, Joakim
name: Obradović, Danilo
name: Harnefors, Lennart
name: Johansson, Karl Henrik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Fundamental sensor feedback limitations for improving rotor angle stability using local frequency or phase angle measurement are derived. Using a two-machine power system model, it is shown that improved damping of inter-area oscillations must come at the cost of reduced transient stability margins, regardless of the control design method. The control limitations stem from that the excitation of an inter-area mode by external disturbances cannot be estimated with certainty using local frequency information. The results are validated on a modified Kundur four-machine two-area test system where the active power is modulated on an embedded high-voltage dc link. Damping control using local phase angle measurements, unavoidably leads to an increased rotor angle deviation following certain load disturbances. For a highly stressed system, it is shown that this may lead to transient instability. The limitations derived in the paper may motivate the need for wide-area measurements in power oscillation damping control.
description: This article has been accepted for publication as an open access article in IEEE Transactions on Power Systems
National Opinion Polls National Political Surveys; July 1968
July 1968
Creators: name: NOP Market Research Limited
Publisher: name: UK Data Service
Year: 1981

description: The NOP National Political Surveys were designed principally to ascertain public opinion on political parties, leaders and government, and to record voting intention. In addition, the majority of the surveys included data of topical interest and of social importance.
Null Geodesics in Five Dimensional Manifolds
Creators: name: Seahra, Sanjeev S.
name: Wesson, Paul S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyze a class of 5D non-compact warped-product spaces characterized by metrics that depend on the extra coordinate via a conformal factor. Our model is closely related to the so-called canonical coordinate gauge of Mashhoon et al. We confirm that if the 5D manifold in our model is Ricci-flat, then there is an induced cosmological constant in the 4D sub-manifold. We derive the general form of the 5D Killing vectors and relate them to the 4D Killing vectors of the embedded spacetime. We then study the 5D null geodesic paths and show that the 4D part of the motion can be timelike -- that is, massless particles in 5D can be massive in 4D. We find that if the null trajectories are affinely parameterized in 5D, then the particle is subject to an anomalous acceleration or fifth force. However, this force may be removed by reparameterization, which brings the correct definition of the proper time into question. Physical properties of the geodesics -- such as rest mass variations induced by a variable cosmological ``constant'', constants of the motion and 5D time-dilation effects -- are discussed and are shown to be open to experimental or observational investigation.
description: 19 pages, REVTeX, in press in Gen. Rel. Grav
System Design and Co-Product Streams: Does Technological Choice Matter for Aquaponic Profitability?
Creators: name: Gibbons, Grace
name: McCarty, Tanner
name: Gibbons, Grace
name: McCarty, Tanner
Publisher: name: Unknown
Year: 2020
Subjects: subject: Aquaponics
subject: Benefit Cost Analysis
subject: Techno Economic Analysis

description: Population growth, urbanization and climate change will create future challenges for agribusiness. One particularly vexing challenge will be producing more food using less land and water. Aquaponics offers the potential to overcome these obstacles, but a lack ofresearch providing insight into managerial decision-making in this industry limits its effectiveness. This research is particularly lacking in the realm of aquaponic technological selection. This study compares the expected profitability of four leading aquaponics production systems. It compares expected net present value for coupled and decoupled aquaponic platforms, with and without a co-product capture for organic fertilizer. Technological choice has a considerable impact on aquaponic profitability.Expected net present value estimates ranged from $87,507 to $156,599 across the four technological combinations considered. Decoupled platforms combined with an organic fertilizer co-product capture provided the highest expected net present value. This result holds under a variety of economic conditions.
Electric field fluctuations in the two-dimensional Coulomb fluid
Creators: name: Gray, Callum
name: Bramwell, Steven T.
name: Holdsworth, Peter C. W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The structure factor for electric field correlations in the two dimensional Coulomb fluid is simulated and compared to theories of the dielectric function. Singular changes in the structure factor occur at the BKT insulator to conductor transition, as well as at a higher temperature correlation transition between a poor electrolyte and perturbed Debye-Hückel fluid. Structure factors are found to differ in the canonical and grand canonical ensembles, with the poor electrolyte showing full ensemble inequivalence. We identify mechanisms of `underscreening' and `pinch point' scattering that are relevant to experiments on ionic liquids and artificial spin ice respectively.
description: 18 pages, 9 figures
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-19)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-20)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Great Britain Ministry of Information – Daily Press Notices and Bulletins (1941-05-21)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1941
Subjects: World War, 1939-1945 – Social aspects
World War, 1939-1945 -- History
World War II
Second World War
World War Two
Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Quantum control and the Strocchi map
Creators: name: Mendes, R. Vilela
name: Man'ko, V. I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Identifying the real and imaginary parts of wave functions with coordinates and momenta, quantum evolution may be mapped onto a classical Hamiltonian system. In addition to the symplectic form, quantum mechanics also has a positive-definite real inner product which provides a geometrical interpretation of the measurement process. Together they endow the quantum Hilbert space with the structure of a Käller manifold. Quantum control is discussed in this setting. Quantum time-evolution corresponds to smooth Hamiltonian dynamics and measurements to jumps in the phase space. This adds additional power to quantum control, non unitarily controllable systems becoming controllable by ``measurement plus evolution''. A picture of quantum evolution as Hamiltonian dynamics in a classical-like phase-space is the appropriate setting to carry over techniques from classical to quantum control. This is illustrated by a discussion of optimal control and sliding mode techniques.
description: 16 pages Latex