cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CONVERGENCE, HARMONIZATION, AND COMPATIBILITY UNDER NAFTA: A 2003 STATUS REPORT
Creators: name: Knutson, Ronald D.
name: Ochoa, Rene F.
name: Knutson, Ronald D.
name: Ochoa, Rene F.
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: In the 2001 Workshop the authors developed and applied a taxonomy and framework for assessing the status of agricultural and food policies in each of the NAFTA countries (Knutson, Loyns and Ochoa, 2002). It divided the policies into the following areas: -Facilitate growth and progress. -Regulation. -Market intervention. For each area the paper identified the major points of conflict that existed in 2001 at the time the paper was written and the requirements for harmonization. The major areas of conflict included; -Facilitate growth and progress: particularly grades and standards in grains (US-CA) and beef (US-CA); trade policy in dairy (US-CA), sugar (US-MX), poultry (US-MX), and wheat (US-CA); infrastructure policies (border conflicts US-MX). -Regulation: particularly plant and animal protection (US-MX), food safety (US-MX), pesticides (US-CA-MX). -Market interventions: particularly disaster assistance (US-CA-MX), price supports and safety nets (US-CA-MX), and supply management and state trading. The purpose of this paper is to update that paper and to draw conclusions as to whether progress has been made since 2001 has been positive, negative, or neutral in each of these areas of conflict for policy/program convergence, harmonization, and compatibility. The 2001 policies, therefore, can be looked upon as a policy baseline point of reference for comparison in 2003. Many of the policy changes were embodied in the precipitated by the US 2002 farm bill. However, care was taken to review each of the policy/program areas covered in the 2001 taxonomy to identify changes in the level of conflict.
Electroweak corrections uncertainty on the W mass measurement at LEP
Creators: name: Cossutti, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The systematic uncertainty on the W mass and width measurement resulting from the imperfect knowledge of electroweak radiative corrections is discussed. The intrinsic uncertainty in the 4-f generator used by the DELPHI Collaboration is studied following the guidelines of the authors of YFSWW, on which its radiative corrections part is based. The full DELPHI simulation, reconstruction and analysis chain is used for the uncertainty assessment. A comparison with the other available 4-f calculation implementing DPA O(alpha) corrections, RacoonWW, is also presented. The uncertainty on the W mass is found to be below 10 MeV for all the WW decay channels used in the measurement.
description: 34 pages, 3 figures
[Brev til DKNVS]
Creators: name: Horneman, Christian Hersleb
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1836

description: Oversender prof. Sverdrups brev vedr. noen prisoppgaver samt en trykksak av B.M. Keilhau
On Valency Problems of Saxl Graphs
Creators: name: Chen, Jiyong
name: Huang, Hong Yi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $G$ be a permutation group on a set $Ω$ and recall that a base for $G$ is a subset of $Ω$ such that its pointwise stabiliser is trivial. In a recent paper, Burness and Giudici introduced the Saxl graph of $G$, denoted $Σ(G)$, with vertex set $Ω$ and two vertices adjacent if they form a base. If $G$ is transitive, then $Σ(G)$ is vertex-transitive and it is natural to consider its valency (which we refer to as the valency of $G$). In this paper we present a general method for computing the valency of any finite transitive group and we use it to calculate the exact valency of every primitive group with stabiliser a Frobenius group with cyclic kernel. As an application, we calculate the valency of every almost simple primitive group with an alternating socle and soluble stabiliser and we use this to extend results of Burness and Giudici on almost simple primitive groups with prime-power or odd valency.
TRACEABILITY AND COUNTRY OF ORIGIN LABELLING
Creators: name: Hobbs, Jill E.
name: Hobbs, Jill E.
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety

description: Country of origin labelling (COOL) on food products is controversial. There is disagreement over whether consumers value information on country of origin intrinsically or as a quality or a safety signal. The debate becomes more heated when country of origin labelling is mandated by regulation, with fears that the regulation is driven by producer rather than consumer interests. Country of origin labelling has implications for traceability systems in agrifood supply chains. The ability to provide consumers with information on the country of origin requires a basic level of traceability, although does not necessarily imply full traceability throughout the supply chain to the farm. This paper examines the role of traceability and identity preservation systems in marketing agrifood products, focusing on the underlying economic functions of traceability systems. Voluntary versus mandatory labelling of country of origin and/or traceability becomes a question of determining if consumers value this information and whether a market failure exists in providing this information. The table implications of mandatory country of origin labelling are explored within this context.
The quasi-particle gap in a disordered boson Hubbard model in two dimensions
Creators: name: Lee, Ji-Woo
name: Cha, Min-Chul
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the behavior of the quasi-particle energy gap near quantum phase transitions in a two-dimensional disordered boson Hubbard model at a commensurate filling. Via Monte Carlo simulations of ensembles with fixed numbers of particles, we observe the behavior of the gap as a function of the tuning parameter for various strength of diagonal disorder. For weak disorder, we find that gapped Mott insulating phase is sustained up to the transition point and disappears only in a superfluid, strongly supporting a direct Mott-insulator-to-superfluid transition. Bose glass behavior, insulating with vanishing gap, appears only when the strength of disorder is bigger than a critical value.
Randomized Quaternion Singular Value Decomposition for Low-Rank Approximation
Creators: name: Liu, Qiaohua
name: Ling, Sitao
name: Jia, Zhigang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.3
subject: 65F55

description: This paper presents a randomized quaternion singular value decomposition (QSVD) algorithm for low-rank matrix approximation problems, which are widely used in color face recognition, video compression, and signal processing problems. With quaternion normal distribution based random sampling, the randomized QSVD algorithm projects a high-dimensional data to a low-dimensional subspace and then identifies an approximate range subspace of the quaternion matrix. The key statistical properties of quaternion Wishart distribution are proposed and used to perform the approximation error analysis of the algorithm. Theoretical results show that the randomized QSVD algorithm can trace dominant singular value decomposition triplets of a quaternion matrix with acceptable accuracy. Numerical experiments also indicate the rationality of proposed theories. Applied to color face recognition problems, the randomized QSVD algorithm obtains higher recognition accuracies and behaves more efficient than the known Lanczos-based partial QSVD and a quaternion version of fast frequent directions algorithm.
description: 31 pages, 9 figures
Torus graphs and simplicial posets
Creators: name: Maeda, Hiroshi
name: Masuda, Mikiya
name: Panov, Taras
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Topology (math.AT)
subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: For several important classes of manifolds acted on by the torus, the information about the action can be encoded combinatorially by a regular n-valent graph with vector labels on its edges, which we refer to as the torus graph. By analogy with the GKM-graphs, we introduce the notion of equivariant cohomology of a torus graph, and show that it is isomorphic to the face ring of the associated simplicial poset. This extends a series of previous results on the equivariant cohomology of torus manifolds. As a primary combinatorial application, we show that a simplicial poset is Cohen-Macaulay if its face ring is Cohen-Macaulay. This completes the algebraic characterisation of Cohen-Macaulay posets initiated by Stanley. We also study blow-ups of torus graphs and manifolds from both the algebraic and the topological points of view.
description: 26 pages, LaTeX2e; examples added, some proofs expanded
Graph Rewriting and Relabeling with PBPO+
Creators: name: Overbeek, Roy
name: Endrullis, Jörg
name: Rosset, Aloïs
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We extend the powerful Pullback-Pushout (PBPO) approach for graph rewriting with strong matching. Our approach, called \pbpostrong, exerts more control over the embedding of the pattern in the host graph, which is important for a large class of graph rewrite systems. In addition, we show that \pbpostrong is well-suited for rewriting labeled graphs and certain classes of attributed graphs. For this purpose, we employ a lattice structure on the label set and use order-preserving graph morphisms. We argue that our approach is simpler and more general than related relabeling approaches in the literature.
description: 20 pages, accepted to the International Conference on Graph Transformation 2021 (ICGT 2021)
On the pseudo-manifold of quantum states
Creators: name: D'Andrea, Francesco
name: Franco, Davide
Publisher: name: arXiv
Year: 2020
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: There are various statements in the physics literature about the stratification of quantum states, for example into orbits of a unitary group, and about generalized differentiable structures on it. Our aim is to clarify and make precise some of these statements. For A an arbitrary finite-dimensional C*-algebra and U(A) the group of unitary elements of A, we observe that the partition of the state space S(A) into U(A) orbits is not a decomposition and that the decomposition into orbit types is not a stratification (its pieces are not manifolds without boundary), while there is a natural Whitney stratification into matrices of fixed rank. For the latter, when A is a full matrix algebra, we give an explicit description of the pseudo-manifold structure (the conical neighborhood around any point). We then make some comments about the infinite-dimensional case.
description: 18 pages, 4 figures. Minor corrections
Analysis of binary spatial data by quasi-likelihood estimating equations
Creators: name: Lin, Pei-Sheng
name: Clayton, Murray K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62H11 (Primary) 62H12 (Secondary)

description: The goal of this paper is to describe the application of quasi-likelihood estimating equations for spatially correlated binary data. In this paper, a logistic function is used to model the marginal probability of binary responses in terms of parameters of interest. With mild assumptions on the correlations, the Leonov-Shiryaev formula combined with a comparison of characteristic functions can be used to establish asymptotic normality for linear combinations of the binary responses. The consistency and asymptotic normality for quasi-likelihood estimates can then be derived. By modeling spatial correlation with a variogram, we apply these asymptotic results to test independence of two spatially correlated binary outcomes and illustrate the concepts with a well-known example based on data from Lansing Woods. The comparison of generalized estimating equations and the proposed approach is also discussed.
description: Published at http://dx.doi.org/10.1214/009053605000000057 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The Gibbons-Hawking ansatz in generalized Kähler geometry
Creators: name: Streets, Jeffrey
name: Ustinovskiy, Yury
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We derive a local ansatz for generalized Kähler surfaces with nondegenerate Poisson structure and a biholomorphic $S^1$ action which generalizes the classic Gibbons-Hawking ansatz for invariant hyperKähler manifolds, and allows for the choice of one arbitrary function. By imposing the generalized Kähler-Ricci soliton equation, or equivalently the equations of type IIB string theory, the construction becomes rigid, and we classify all complete solutions with the smallest possible symmetry group.
description: 61 pages, 3 figures, the version to appear in Communications in Mathematical Physics
CHANGES IN MEXICAN AGRICULTURAL POLICIES, 2001-2003
Creators: name: Rosenzweig, Andres
name: Rosenzweig, Andres
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy

description: Several changes in agricultural policies in Mexico have taken place during the administration of President Fox, which started in December 2000. For the fist time in modern history an opposition party won the Presidential election in July of that year. The new government has shown a new attitude towards agriculture, seeing to the greatest possible extent market oriented policies and is pushing hard to change the attitude of Mexican farmers, in order to foster their entrepreneurial skills. Traditionally most farmers have relied heavily in government guidance for their production and marketing decisions. In contrast, the largest farmer organizations, with strong political ties to the former governing Party, do not share a large the new policy orientations. Moreover, the Fox administration does not hold a majority in Congress. Even though all political parties state that agriculture is one of their main priorities, a common view is lacking. Policy developments during the last two years should be analyzed under the perspective of compromise between the major players involved.
Log-parabolic spectra and particle acceleration in blazars. III: SSC emission in the TeV band from Mkn 501
Creators: name: Massaro, E.
name: Tramacere, A.
name: Perri, M.
name: Giommi, P.
name: Tosti, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Curved broad-band spectral distributions of non-thermal sources like blazars are described well by a log-parabolic (LP) law where the second degree term measures the curvature. LP energy spectra can be obtained for relativistic electrons by means of a statistical acceleration mechanism whose probability of acceleration depends on energy. In this paper we compute the spectra radiated by an electron population via synchrotron (S) and Synchro-Self Compton(SSC) processes to derive the relations between the LP parameters. These spectra were obtained by means of an accurate numerical code. We found that the ratio between the curvature parameters of the S spectrum to that of the electrons is equal to about 0.2 instead of 0.25, the value foreseen in the delta approximation. Inverse Compton spectra are also intrinsically curved and can be approximated by a log-parabola only in limited ranges. The curvature parameter, estimated around the SED peak, may vary from a lower value than that of the S spectrum up to that of emitting electrons depending on whether the scattering is in the Thomson or in the Klein-Nishina regime. We applied this analysis to computing the SSC emission from the BL Lac object Mkn 501 during the large flare of April 1997. We fit simultaneous BeppoSAX and CAT data and reproduced intensities and spectral curvatures of both components with good accuracy. The large curvature observed in the TeV range was found to be mainly intrinsic, and therefore did not require a large pair production absorption against the extragalactic background. We regard this finding as an indication that the Universe is more transparent at these energies than previously assumed by several models found in the literature. This conclusion is supported by recent detection of two relatively high redshift blazars with H.E.S.S.
description: Comments: 12 pages, 11 figures. Accepted for publication in the Astronomy and Astrophysics
Free-boundary conformal parameterization of point clouds
Creators: name: Choi, Gary P. T.
name: Liu, Yechen
name: Lui, Lok Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Geometry (cs.CG)
subject: Graphics (cs.GR)
subject: Numerical Analysis (math.NA)
subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: With the advancement in 3D scanning technology, there has been a surge of interest in the use of point clouds in science and engineering. To facilitate the computations and analyses of point clouds, prior works have considered parameterizing them onto some simple planar domains with a fixed boundary shape such as a unit circle or a rectangle. However, the geometry of the fixed shape may lead to some undesirable distortion in the parameterization. It is therefore more natural to consider free-boundary conformal parameterizations of point clouds, which minimize the local geometric distortion of the mapping without constraining the overall shape. In this work, we develop a free-boundary conformal parameterization method for disk-type point clouds, which involves a novel approximation scheme of the point cloud Laplacian with accumulated cotangent weights together with a special treatment at the boundary points. With the aid of the free-boundary conformal parameterization, high-quality point cloud meshing can be easily achieved. Furthermore, we show that using the idea of conformal welding in complex analysis, the point cloud conformal parameterization can be computed in a divide-and-conquer manner. Experimental results are presented to demonstrate the effectiveness of the proposed method.
Symplectically Covariant Schrödinger Equation in Phase Space
Creators: name: De Gosson, Maurice A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: NA

description: A classical theorem of Stone and von Neumann says that the Schrödinger representation is, up to unitary equivalences, the only irreducible representation of the Heisenberg group on the Hilbert space of square-integrable functions on configuration space. Using the Wigner-Moyal transform we construct an irreducible representation of the Heisenberg group on a certain Hilbert space of square-integrable functions defined on phase space. This allows us to extend the usual Weyl calculus into a phase-space calculus and leads us to a quantum mechanics in phase space, equivalent to standard quantum mechanics. We also briefly discuss the extension of metaplectic operators to phase space and the probabilistic interpretation of the solutions of the phase space Schrödinger equation
description: To appear in J Phys A
The Interpretation of Inertial Force and The Existence of Absolute Background
Creators: name: Chen, ChiYi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The formalism of classical particle dynamics is reinvestigated according to the basic requirement of causal consistency, and a new equation of particle dynamics, which is more general and more in line with classical mechanics experiments than Newton's second law, is obtained. More importantly, the inertial frame of reference is no longer required and the inertial force is no longer introduced by hand. The new dynamical equation can be straightforwardly applied in any reference frame as long as which is irrotational with respect to the absolute background of the universe. The nature of the inertial force is nothing but the real forces acting on the reference object. The essence of this reform of classical particle dynamics is just a drawback of traditional formalism in Newtonian mechanics being corrected. However, it may be more important that a logical derivation of this new particle dynamics equation strongly suggests the existence of an absolute background for the whole space of the universe. In physical concepts, the absolute background for space does not conflict with the relative length of the base unit of space in Einstein's Special Relativity and General Relativity. Furthermore, the size of the base unit of space should essentially be understood as the length of the line segment, which is cut from the absolute background of space by the intrinsic physical events.
description: 14 pages, in Chinese
Die Vertiefung der innerprotestantischen Kirchentrennung im 19. Jahrhundert
Creators: name: Fagerberg, Holsten
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 19 Nr. 1 (1970): Ökumenische Rundschau, Band 19, Heft 1
Nonclassical rotational behavior at the vicinity of the lamda point
Creators: name: Koh, Shun-ichiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The rotational property of a quantum liquid at the vicinity of the lambda point is examined. In a liquid helium 4 just above the lambda point, under the strong influence of Bose statistics, the coherent many-body wave function grows to an intermediate size between a macroscopic and a microscopic one, which is of a different nature from the thermal fluctuations. It must reflect in the rotational properties such as the moment of inertia. Beginning with the bosons without the condensate, we make a perturbation calculation of its susceptibility with respect to the repulsive interaction, and examine how, with decreasing temperature, the growth of the coherent wave function gradually changes the rotational behavior of a liquid:The moment of inertia slightly decreases just above the lambda point. This means that at the vicinity of the lambda point, the mechanical superfluid density does not always agree with the thermodynamical one.We compare the result to the experiment by Hess and Fairbank. A new interpretation of the shear viscosity just above the lambda point is given from this viewpoint.
description: 12pages, 5figures
Deliverable 6.2 REPORT ON PILOTING OF EDUCATIONAL MODULE
Creators: name: Paca, Cristina
name: Fenollosa, Carmen
name: Regeer, Barbara
name: De Wildt-Liesveld, Renée
name: Van der Meij, Marjoleine G.
name: Brierley, Chrissie
name: Broerse, Jacqueline
Publisher: name: Zenodo
Year: 2020
Subjects: FIT4FOOD2030
Dissemination
Responsible Research and Innovation
Food and Nutrition Security
FOOD2030EU
Food system transformation
Tools for transformation
Horizon Europe Programme
Piloting of Educational Modules

description: The objective of this deliverable is to document the piloting of educational modules under Task 6.4., capture the changes made as a result of this phase and provide further insights to those looking to use the FIT4FOOD2030 educational modules. The deliverable has been compiled based on the submissions made by the coordinators of the City Labs and semi-structured interviews between the coordinators and the Work Package 6 leads. It is recommended that this deliverable is consulted in parallel with Deliverable 6.3 which provides an overview of the 15 modules and contains step-by-step guidelines to implement the educational modules with which this report is concerned.
Monte Carlo techniques for real-time quantum dynamics
Creators: name: Dowling, Mark R.
name: Davis, Matthew J.
name: Drummond, Peter D.
name: Corney, Joel F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The stochastic-gauge representation is a method of mapping the equation of motion for the quantum mechanical density operator onto a set of equivalent stochastic differential equations. One of the stochastic variables is termed the "weight", and its magnitude is related to the importance of the stochastic trajectory. We investigate the use of Monte Carlo algorithms to improve the sampling of the weighted trajectories and thus reduce sampling error in a simulation of quantum dynamics. The method can be applied to calculations in real time, as well as imaginary time for which Monte Carlo algorithms are more-commonly used. The method is applicable when the weight is guaranteed to be real, and we demonstrate how to ensure this is the case. Examples are given for the anharmonic oscillator, where large improvements over stochastic sampling are observed.
description: 28 pages, submitted to J. Comp. Phys
Phase transitions in Lu$_2$Ir$_3$Si$_5$
Creators: name: Singh, Yogesh
name: Pal, Dilip
name: Ramakrishnan, S.
name: Awasthi, A. M.
name: Malik, S. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the results of our investigations on a polycrystalline sample of Lu$_2$Ir$_3$Si$_5$ which crystallizes in the U$_2$Co$_3$Si$_5$ type structure (Ibam). These investigations comprise powder X-ray diffraction, magnetic susceptibility, electrical resistivity and high temperature (120-300 K) heat capacity studies. Our results reveal that the sample undergoes a superconducting transition below 3.5 K. It also undergoes a first order phase transition between 150-250 K as revealed by an upturn in the resistivity, a diasmagnetic drop in the magnetic susceptibility and a large anomaly (20-30 J/mol K) in the specific heat data. We observe a huge thermal hysteresis of almost 45 K between the cooling and warming data across this high temperature transition in all our measurements. Low temperature X-ray diffraction measurements at 87 K reveals that the compound undergoes a structural change at the high temperature transition. Resistivity data taken in repeated cooling and warming cycles indicate that at the high temperature transition, the system goes into a highly metastable state and successive heating/cooling curves are found to lie above the previous one and the resistance keeps increasing with every thermal cycle. The room temperature resistance of a thermaly cycled piece of the sample decays exponentialy with time with a decay time constant estimated to be about 10$^4$ secs. The anomaly (upturn) in the resistivity and the large drop (almost 45%) in the susceptibility across the high temperature transition suggest that the observed structural change is accompanied or induced by an electronic transition.
description: 7 figures, 1 table and 18 references
Population aging: towards a sustainable future
Creators: name: Landucci, Margret
Publisher: name: University of British Columbia
Year: 2009

description: A critical concern for society at the present time is the detrimental effects of human activity on the ecosystems. However, while there is raised awareness about issues such as global warming and the thinning ozone layer, humans still plan and develop the urban landscape from the perspective of the Cartesian worldview. This is also apparent in planning for the aging population. Although there is a large body of literature on population aging and sustainable urban development as well as a significant amount of material on aging and urban planning, the three issues of sustainability, urban planning and population aging are seldom addressed simultaneously. This thesis addresses the question of how sustainability planning principles can be integrated with planning for population aging. To this end, I investigate the underlying paradigms of both planning and the sociology of aging to gain an understanding of the values that underscore the policy directions in both these fields. I also review the literature on population aging, as well as housing and health service planning to highlight some needs, preferences and beliefs of the older population. Finally, I survey the literature on sustainable urban planning to elucidate some points of intersection between the needs and preferences of an aging population and the dominant principles underwriting a more sustainable lifestyle. The most significant themes arising from this investigation are the need for social and physical restructuring through changing paradigms. It is clear that older people are treated as a special group and have been segregated either covertly or overtly from mainstream society. Therefore, a change in values is required normalizing the older population within the societal structure. At the same time, traditional urban planning supports increasing consumption of material and energy resources leading to greater environmental degradation. Physical urban restructuring that reduces fossil fuel consumption and waste production will move society towards sustainability. Social ecology and ecological planning principles underwrite such social and ecological restructuring.
Fast DNA Sequencing via Transverse Electronic Transport
Creators: name: Lagerqvist, Johan
name: Zwolak, Michael
name: Di Ventra, Massimiliano
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A rapid and low-cost method to sequence DNA would usher in a revolution in medicine. We propose and theoretically show the feasibility of a protocol for sequencing based on the distributions of transverse electrical currents of single-stranded DNA while it translocates through a nanopore. Our estimates, based on the statistics of these distributions, reveal that sequencing of an entire human genome could be done with very high accuracy in a matter of hours without parallelization, e.g., orders of magnitude faster than present techniques. The practical implementation of our approach would represent a substantial advancement in our ability to study, predict and cure diseases from the perspective of the genetic makeup of each individual.
description: 5 pages, 3 figures
Lower Mass Bounds on FIMP Dark Matter Produced via Freeze-In
Creators: name: D'Eramo, Francesco
name: Lenoci, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Feebly Interacting Massive Particles (FIMPs) are dark matter candidates that never thermalize in the early universe and whose production takes place via decays and/or scatterings of thermal bath particles. If FIMPs interactions with the thermal bath are renormalizable, a scenario which is known as freeze-in, production is most efficient at temperatures around the mass of the bath particles and insensitive to unknown physics at high temperatures. Working in a model-independent fashion, we consider three different production mechanisms: two-body decays, three-body decays, and binary collisions. We compute the FIMP phase space distribution and matter power spectrum, and we investigate the suppression of cosmological structures at small scales. Our results are lower bounds on the FIMP mass. Finally, we study how to relax these constraints in scenarios where FIMPs provide a sub-dominant dark matter component.
description: 50 pages, 14 figures, 3 tables; version published in JCAP
Geometry of regular modules over canonical algebras
Creators: name: Bobinski, Grzegorz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 16G20, 14L30

description: We classify canonical algebras such that for every dimension vector of a regular module the corresponding module variety is normal (respectively, a complete intersection). We also prove that for the dimension vectors of regular modules normality is equivalent to irreducibility.
Strange metals as ersatz Fermi liquids
Creators: name: Else, Dominic V.
name: Senthil, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A long standing mystery of fundamental importance in correlated electron physics is to understand strange non-Fermi liquid metals that are seen in diverse quantum materials. A striking experimental feature of these metals is a resistivity that is linear in temperature ($T$). In this paper we ask what it takes to obtain such non-Fermi liquid physics down to zero temperature in a translation invariant metal. If in addition the full frequency ($ω$) dependent conductivity satisfies $ω/T$ scaling, we argue that the $T$-linear resistivity must come from the intrinsic physics of the low energy fixed point. Combining with earlier arguments that compressible translation invariant metals are `ersatz Fermi liquids' with an infinite number of emergent conserved quantities, we obtain powerful and practical conclusions. We show that there is necessarily a diverging susceptibility for an operator that is odd under inversion/time reversal symmetries, and has zero crystal momentum. We discuss a few other experimental consequences of our arguments, as well as potential loopholes which necessarily imply other exotic phenomena.
description: 6 pages + 4 pages appendices. v3 various minor corrections
Quantum harmonic oscillator spectrum analyzers
Creators: name: Keller, Jonas
name: Hou, Pan-Yu
name: McCormick, Katherine C.
name: Cole, Daniel C.
name: Erickson, Stephen D.
name: Wu, Jenny J.
name: Wilson, Andrew C.
name: Leibfried, Dietrich
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Characterization and suppression of noise are essential for the control of harmonic oscillators in the quantum regime. We measure the noise spectrum of a quantum harmonic oscillator from low frequency to near the oscillator resonance by sensing its response to amplitude modulated periodic drives with a qubit. Using the motion of a trapped ion, we experimentally demonstrate two different implementations with combined sensitivity to noise from 500 Hz to 600 kHz. We apply our method to measure the intrinsic noise spectrum of an ion trap potential in a previously unaccessed frequency range.
description: 6 + 10 pages, 4 + 7 figures
Die Entstehung der innerprotestantischen Kirchentrennung im 16. Jahrhundert
Creators: name: Staedtke, Joachim
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 19 Nr. 1 (1970): Ökumenische Rundschau, Band 19, Heft 1
XMM-Newton observations of AM CVn binaries
Creators: name: Ramsay, Gavin
name: Hakala, Pasi
name: Marsh, Tom
name: Nelemans, Gijs
name: Steeghs, Danny
name: Cropper, Mark
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of XMM-Newton observations of four AM CVn systems -- AM CVn, CR Boo, HP Lib and GP Com. Their light curves show very different characteristics. The X-ray light curves show no coherent pulsations, suggesting the accreting white dwarfs have relatively low magnetic field strengths. Their spectra were best modelled using a multi-temperature emission model and a strong UV component. We find that CR Boo and HP Lib have X-ray spectra with abundances consistent with relatively low temperature CNO processed material, while AM CVn and GP Com show an enhancement of nitrogen. A large fraction of the accretion luminosity is emitted in the UV. We determine accretion luminosities of ~1.6x10^{33} ergs/s and 1.7x10^{31} ergs/s for AM CVn and GP Com respectively. Comparing the implied mass transfer rates with that derived using model fits to optical and UV spectra, we find evidence that in the case of AM CVn, we do not detect a significant proportion of the accretion energy. This missing component could be lost in the form of a wind.
description: accepted A&A, 8 pages
Absolute irreducibility of the binomial polynomials
Creators: name: Rissner, Roswitha
name: Windisch, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13F20, 13A05, 11C08, 11C20

description: In this paper we investigate the factorization behaviour of the binomial polynomials $\binom{x}{n} = \frac{x(x-1)\cdots (x-n+1)}{n!}$ and their powers in the ring of integer-valued polynomials $\operatorname{Int}(\mathbb{Z})$. While it is well-known that the binomial polynomials are irreducible elements in $\operatorname{Int}(\mathbb{Z})$, the factorization behaviour of their powers has not yet been fully understood. We fill this gap and show that the binomial polynomials are absolutely irreducible in $\operatorname{Int}(\mathbb{Z})$, that is, $\binom{x}{n}^m$ factors uniquely into irreducible elements in $\operatorname{Int}(\mathbb{Z})$ for all $m\in \mathbb{N}$. By reformulating the problem in terms of linear algebra and number theory, we show that the question can be reduced to determining the rank of, what we call, the valuation matrix of $n$. A main ingredient in computing this rank is the following number-theoretical result for which we also provide a proof: If $n>10$ and $n$, $n-1$, \ldots, $n-(k-1)$ are composite integers, then there exists a prime number $p > 2k$ that divides one of these integers.
description: This is an update to the journal version to include more references; all results and proofs remain unchanged
GEMS embeddings of Schwarzschild and RN black holes in Painlevé-Gullstrand spacetimes
Creators: name: Hong, Soon-Tae
name: Kim, Yong-Wan
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Making use of the higher dimensional global embedding Minkowski spacetime (GEMS), we embed (3+1)-dimensional Schwarzschild and Reissner-Nordström (RN) black holes written by the Painlevé-Gullstrand (PG) spacetimes, which have off-diagonal components in metrics, into (5+1)- and (5+2)-dimensional flat ones, respectively. As a result, we have shown the equivalence of the GEMS embeddings of the spacetimes with the diagonal and off-diagonal terms in metrics. Moreover, with the aid of their geodesic equations satisfying various boundary conditions in the flat embedded spacetimes, we directly obtain freely falling temperatures. We also show that freely falling temperatures in the PG spacetimes are well-defined beyond the event horizons, while they are equivalent to the Hawking temperatures, which are obtained in the original curved ones in the ranges between the horizon and the infinity. These will be helpful to study GEMS embeddings of more realistic Kerr, or rotating BTZ black holes.
description: 18 pages, 3 figures, version to appear in Universe
Efficient symmetric multiparty quantum state sharing of an arbitrary m-qubit state
Creators: name: Li, Xi-Han
name: Zhou, Ping
name: Li, Chun-Yan
name: Zhou, Hong-Yu
name: Deng, Fu-Guo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a scheme for symmetric multiparty quantum state sharing of an arbitrary $m$-qubit state with $m$ Greenberger-Horne-Zeilinger states following some ideas from the controlled teleportation [Phys. Rev. A \textbf{72}, 02338 (2005)]. The sender Alice performs $m$ Bell-state measurements on her $2m$ particles and the controllers need only to take some single-photon product measurements on their photons independently, not Bell-state measurements, which makes this scheme more convenient than the latter. Also it does not require the parties to perform a controlled-NOT gate on the photons for reconstructing the unknown $m$-qubit state and it is an optimal one as its efficiency for qubits approaches the maximal value.
description: 6 pages, no figures; It simplifies the process for sharing an arbitrary m-qubit state in Phys. Rev. A 72, 022338 (2005) (quant-ph/0501129)
Large N Scaling Behavior of the Lipkin-Meshkov-Glick Model
Creators: name: Leyvraz, F
name: Heiss, WD
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a novel semiclassical approach to the Lipkin model. In this way the well-known phase transition arising at the critical value of the coupling is intuitively understood. New results -- showing for strong couplings the existence of a threshold energy which separates deformed from undeformed states as well as the divergence of the density of states at the threshold energy -- are explained straightforwardly and in quantitative terms by the appearance of a double well structure in a classical system corresponding to the Lipkin model. Previously unnoticed features of the eigenstates near the threshold energy are also predicted and found to hold.
description: 4 pages, 2 figures, to appear in PRL
Non-thermal Sunyaev-Zeldovich signal from radio galaxy lobes
Creators: name: Acharya, Sandeep Kumar
name: Majumdar, Subhabrata
name: Nath, Biman B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Energetic electrons in the lobes of radio galaxies make them potential sources for not only radio and X-rays but also Sunyaev-Zeldovich (SZ) distortions in the cosmic microwave background (CMB) radiation. Previous works have discussed the energetics of radio galaxy lobes, but assuming thermal SZ effect, coming from the non-thermal electron population. We use an improved evolutionary model for radio galaxy lobes to estimate the observed parameters such as the radio luminosity and intensity of SZ-distortions at the redshifts of observation. We, further, quantify the effects of various relevant physical parameters of the radio galaxies, such as the jet power, the time scale over which the jet is active, the evolutionary time scale for the lobe, etc on the observed parameters. For current SZ observations towards galaxy clusters, we find that the non-thermal SZ distortions from radio lobes embedded in galaxy clusters can be non-negligible compared to the amount of thermal SZ distortion from the intra-cluster medium and, hence, can not be neglected. We show that small and young (and preferably residing in a cluster environment) radio galaxies offer better prospects for the detection of the non-thermal SZ signal from these sources. We further discuss the limits on different physical parameters for some sources for which SZ effect has been either detected or upper limits are available. The evolutionary models enable us to obtain limits, previously unavailable, on the low energy cut-off of electron spectrum ($p_{min} \sim 1\hbox{--}2$) in order to explain the recent non-thermal SZ detection. Finally, we discuss how future CMB experiments, which would cover higher frequency bands ($>$400 GHz), may provide clear signatures for non-thermal SZ effect.
description: Replaced with published version
Temporal jitter produces PI-PB rollover in young normal-hearing listeners
Creators: name: Miranda, Terence T.
Publisher: name: University of British Columbia
Year: 2009

description: Older listeners, even those with audiograms in the normal range, often have more difficulty than younger listeners when listening to speech in background noise. It is thought that one of the reasons for their difficulty may be due to a temporal processing deficit such as a lack of neural synchrony. The present study investigates whether temporal jitter can simulate neural asynchrony in young, normal-hearing listeners. Sixteen young normal-hearing participants were tested with intact and temporally jittered NU-6 word lists in quiet at 40, 55, 65, and (UCL-5) dBHL. Results show significant PI-PB rollover in the jittered but not the intact condition. Results support the claim that temporal jitter simulates neural asynchrony and help explicate the neural basis for PI-PB rollover. Results are consistent with the hypothesis that synchrony coding plays a role in the perception of high-level speech.
Quantum scattering process and information transfer out of a black hole
Creators: name: Emelyanov, V. A.
name: Klinkhamer, F. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the probability amplitude for tree-level elastic electron-muon scattering in Minkowski spacetime with carefully prepared initial and final wave packets. The obtained nonzero amplitude implies a nonvanishing probability for detecting a recoil electron outside the light-cone of the initial muon. Transposing this Minkowski-spacetime scattering result to a near-horizon spacetime region of a massive Schwarzschild black hole and referring to a previously proposed Gedankenexperiment, we conclude that, in principle, it is possible to have information transfer from inside the black-hole horizon to outside.
description: 18 pages, 3 figures, v5: published version
Deliverable 9.1 Data Management Protocol
Creators: name: Den Boer, Alanya
Publisher: name: Zenodo
Year: 2018
Subjects: FIT4FOOD2030
Responsible Research and Innovation
Food and Nutrition Security
FOOD2030EU
Food system transformation
Tools for transformation
Horizon Europe Programme
Coordination and Support Action

description: FIT4FOOD2030 has been established to support the European Commission (EC) in further development and implementation of the FOOD 2030 policy framework and its action plan. This Coordination and Support Action (CSA) aims to establish a sustainable multi-stakeholder, multi-level platform, mobilizing a wide variety of stakeholders at the level of cities, regions, countries, and Europe; the FOOD 2030 Platform. The project will support the urgently needed transformation of research and innovation (R&I) on food and nutrition security (FNS) by providing a network and instruments for the adoption of a food system and Responsible Research and Innovation (RR&I) approach to R&I.
Evidence of a single nonmagnetic Co3+ state in the Na1CoO2 cobaltate
Creators: name: Lang, G.
name: Bobroff, J.
name: Alloul, H.
name: Mendels, P.
name: Blanchard, N.
name: Collin, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Macroscopic magnetization, muon spin rotation (muSR), and NMR measurements were carried out to study magnetism in the Na1CoO2 cobaltate. Using SQUID measurements, Na1CoO2 is shown to have a bulk magnetic susceptibility much lower and flatter than that of NaxCoO2 with x=0.7-0.9. In fact, muSR yields a signal of mostly nonmagnetic origin, which is attributed to the x=1 phase. The intrinsic cobalt spin susceptibility corresponding to this x=1 phase is measured using Na NMR. It is indeed found to be almost zero, in agreement with a low-spin 3+ charge state of all cobalt atoms. This single state of Co ions in CoO2 planes is confirmed by Co NMR, whose determination of cobalt shift and quadrupolar parameters allows us to give a reference value of the Co3+ orbital shift in cobaltates.
description: 7 pages, LaTeX ; v2: corrected typos, minor additions