cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Creating an Active Multisensory Environment for People Living with Dementia (AMuSED)
Creators: name: Olorunda, Esther
Publisher: name: University of Reading
Year: 2022

description: There are over 50 million people with dementia worldwide including 900,000 people in the UK. 
Dementia is a health condition that can affect the memory, thinking capability, mood, behaviour, 
orientation, and lifestyle of a person living with it. It is an overall term used to represent a range of 
progressive disorders that cause damage to the brain. To maintain wellbeing, reduce apathy, and 
encourage participation in activities outside of a person with dementia’s daily routine, it is 
important to provide opportunities for engagement in activities such as art, exercise, music, 
aromatherapy, and reminiscence. There are many very useful interventions, kits and activities on 
the market that help meet this goal ranging from simple jigsaws and colouring books to highly 
technical sensory rooms and interactive games. However, whilst each intervention contributes 
known benefits, there are also some downsides variously attached to them such as: high cost per 
unit, primary focus on only one element, inability to engage users for a long time, lack of challenges 
in games and activities, inability to cater to people across different stages of dementia, lack of 
adaptability as a person’s dementia progresses, and inability to be personalised based on users’ 
interests. Through working with a group of experts in dementia care and adopting a user-centric 
Design Thinking approach to the research, this PhD has developed a multisensory toolkit, AMuSED 
(Active Multi-Sensory Environment for People Living with Dementia) that brings together different 
aspects of dementia therapy into a single portable box for use by carers, care teams and dementia 
activity coordinators with people living with dementia to engage and stimulate them physically, 
mentally, and socially through a combination of sensory elements and themed activities. As well as 
defining the AMuSED Concept and creating the AMuSED Framework as a way of specifying different 
AMuSED toolkit themes, four differently themed AMuSED toolkits(Countryside, Seaside, Christmas, 
and Entertainment) were developed and evaluated in six different care environments during the 
PhD.
PRICE DISCOVERY MECHANISMS AND ALTERNATIVES FOR CANADIAN AGRICULTURE; Part I: A Review of Pricing Mechanisms in Agriculture
Creators: name: Mussell, Al
name: Mayer, Holly
name: Martin, Larry J.
name: Grier, Kevin
name: Westgren, Randall E.
name: Mussell, Al
name: Mayer, Holly
name: Martin, Larry J.
name: Grier, Kevin
name: Westgren, Randall E.
Publisher: name: Unknown
Year: 2003
Subjects: Demand and Price Analysis

description: The purpose of this section is to review pricing mechanisms in agriculture and food. We started by constructing a taxonomy and system of classification for pricing mechanisms that is rooted in economic theory. This framework was applied to 26 pricing mechanisms observed from the following product categories: · Beef · Hogs · Grains and oilseeds · Dairy · Poultry and Eggs · Processed Food and Horticulture
THE ECONOMIC ENVIRONMENT: IMPLICATIONS FOR THE REGULATED MARKETING SYSTEM IN BRITISH COLUMBIA
Creators: name: Martin, Larry J.
name: Grier, Kevin
name: Mayer, Holly
name: Martin, Larry J.
name: Grier, Kevin
name: Mayer, Holly
Publisher: name: Unknown
Year: 2002
Subjects: Industrial Organization

description: This report is the second part of a three part review of regulated marketing in British Columbia undertaken by the British Columbia Ministry of Agriculture, Food and Fisheries (BCMAFF). The focus of this report is the implications of the economic environment for the objectives, policies and regulations of the regulated marketing system. The regulated marketing system in British Columbia includes both supply managed and non-supply managed commodities. The supply managed commodities include chicken, eggs, turkey, milk/dairy and hatching eggs. The non-supply managed commodities include hogs, cranberries, mushrooms and vegetables (which includes greenhouse vegetables). The report is organized as follows: Section 1 describes the basic problem that is at the core of this study, the resulting research problem, the objectives and the methodology of the study. Section 2 contains the historical context of regulated marketing, and Section 3 discusses the current economic environment. Section 4 addresses the relevancy of the historical objectives of regulated marketing and the implications for the regulations.
Extracting the charm cross section from semileptonic decays into muons
Creators: name: Liu, Haidong
name: Zhang, Yifei
name: Zhong, Chen
name: Xu, Zhangbu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We propose a sensitive measurement of the charm total cross-section at RHIC through muon identification from charm semileptonic decay at low transverse momentum ($p_T$). This can test the binary-collision scaling ($N_{bin}$) properties of the charm total cross-section and be used to study whether heavy-flavor quarks, which are used as a probe, are produced exclusively at the initial impact in hadron-hadron collisions. The effect of the charm semileptonic decay form factor on extracting the total charm cross section and on the shape of the lepton spectra are also discussed in detail. We conclude that lepton spectra from charmed hadron decays at transverse momentum $p_T\simeq1.0$ GeV/$c$ are sensitive to the charmed hadron spectrum shape. Therefore, the interactions of heavy quarks with the medium created in relativistic heavy-ion collisions, especially the flow effects, can be extracted from the lepton spectra from charmed hadron decays at low $p_T$.
description: 7 pages, 6 figures; improve figures (Fig.4,Fig.6) and text; accepted for publication in Phys. Lett. B
An Adaptive Metric for BRDF Appearance Matching
Creators: name: Bieron, James
name: Peers, Pieter
Publisher: name: The Eurographics Association
Year: 2020

description: Image-based BRDF matching is a special case of inverse rendering, where the parameters of a BRDF model are optimized based on a photograph of a homogeneous material under natural lighting. Using a perceptual image metric, directly optimizing the difference between a rendering and a reference image can provide a close visual match between the model and reference material. However, perceptual image metrics rely on image-features and thus require full resolution renderings that can be costly to produce especially when embedded in a non-linear search procedure for the optimal BRDF parameters. Using a pixel-based metric, such as the squared difference, can approximate the image error from a small subset of pixels. Unfortunately, pixel-based metrics are often a poor approximation of human perception of the material's appearance. We show that comparable quality results to a perceptual metric can be obtained using an adaptive pixel-based metric that is optimized based on the appearance similarity of the material. As the core of our adaptive metric is pixel-based, our method is amendable to imagesubsampling, thereby greatly reducing the computational cost.
description: Workshop on Material Appearance Modeling
description: Acquiring Accurate Input
description: 1
description: 4
description: James Bieron and Pieter Peers
Active sub-Rayleigh alignment of parallel or antiparallel laser beams
Creators: name: Mueller, Holger
name: Chiow, Sheng-wey
name: Long, Quan
name: Vo, Christoph
name: Chu, Steven
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We measure and stabilize the relative angle of (anti-)parallel laser beams to 5 nanoradian per root Hertz resolution by comparing the phases of radio frequency beat notes on a quadrant photodetector. The absolute accuracy is 5.1 microradian and 2.1 microradian for antiparallel and parallel beams, respectively, which is more than 6 and 16 times below the Rayleigh criterion.
description: References added; to appear in Optics Letters. 3 pages, 4 figures
The Problem of Entangled Material Properties in SVBRDF Recovery
Creators: name: Saryazdi, Soroush
name: Murphy, Christian
name: Mudur, Sudhir
Publisher: name: The Eurographics Association
Year: 2020
Subjects: I.4.1 [Image Procesing and Computer Vision]
Digitization and Image Capture
Reflectance

description: SVBRDF (spatially varying bidirectional reflectance distribution function) recovery is concerned with deriving the material properties of an object from one or more images. This problem is particularly challenging when the images are casual rather than calibrated captures. It makes the problem highly under specified, since an object can look quite different from different angles and from different light directions. Yet many solutions have been attempted under varying assumptions, and the most promising solutions to date are those which use supervised deep learning techniques. The network is first trained with a large number of synthetically created images of surfaces, usually planar, with known values for material properties and then asked to predict the properties for image(s) of a new object. While the results obtained are impressive as shown through renders of the input object using recovered material properties, there is a problem in the accuracy of the recovered properties. Material properties get entangled, specifically the diffuse and specular reflectance behaviors. Such inaccuracies would hinder various down stream applications which use these properties. In this position paper we present this property entanglement problem. First, we demonstrate the problem through various property map outputs obtained by running a state of the deep learning solution. Next we analyse the present solutions, and argue that the main reason for this entanglement is the way the loss function is defined when training the network. Lastly, we propose potential directions that could be pursued to alleviate this problem.
description: Workshop on Material Appearance Modeling
description: Acquiring Accurate Input
description: 5
description: 8
description: Soroush Saryazdi, Christian Murphy, and Sudhir Mudur
description: Categories and Subject Descriptors (according to ACM CCS): I.4.1 [Image Procesing and Computer Vision]: Digitization and Image Capture-Reflectance
Explicit Representations for the T-Matrix on Unphysical Energy Sheets and Resonances in Two- and Three-Body Systems
Creators: name: Motovilov, Alexander K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the structure of the two- and three-body T-matrices, scattering matrices, and resolvents continued to the unphysical energy sheets. Our conclusions arise due to the representations that have been found for analytically continued momentum-space kernels of the T-operators. These representations are explicitly written only in terms of the physical-sheet kernels of the T-matrix itself. One of advantages of the representations in the three-body case is that they show which portions of the physical-sheet three-body scattering matrix are ``responsible'' for the resonances associated with a particular unphysical sheet. A resonance appears to be the energy where the correspondingly truncated scattering matrix (taken on the physical sheet) has eigenvalue zero. We also mention applications of this approach to some specific three-body systems, based on the Faddeev differential equations.
description: Based on a lecture given at the International Workshop ``Critical Stability of Few-Body Quantum Systems'' (Dresden, October 17--22, 2005)
El imaginario nacional a través de las transformaciones del melodrama en Venezuela : de Doña Bárbara (novela) a El país de las mujeres (telenovela)
Creators: name: Rodríguez, Omar A.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis examines Venezuelan national imaginaries through the transformations of melodramatic narratives. Two works are studied in two specific historical moments. Following Fernando Coronil's account, Venezuelan history is punctuated, on the one hand, by the dictatorship (1908-1935) of General Juan Vicente Gomez, and on the other hand, by the second presidential period (1988-1993) of Carlos Andres Perez: the first span frames the oil-impulsed myth of Venezuelan progress and the emergence of the protective state; the second, the collapse of the myth and the switch to a neoliberal state. Within this context, the first text to be analysed is the canonical Doha Barbara (1929) by Romulo Gallegos, a novel with a transparent ideological stance and a clear nationalistic project. The second narrative, El pais de las mujeres (1999), is a telenovela (term used for Latin American soap operas) that brings up the dynamics of a global era in which the national ideology is masked and its elements become deterritorialised. Both works are analysed primarily from an ideological standpoint, brought together with the assumption of a common denominator, i.e., narrative strategies related to a melodramatic cultural matrix. The first chapter lays out the theoretical considerations needed to understand the nation as a network of symbolic and imaginary relations that reproduce institutional dynamics. In this view, dominating segments of society can articulate national discourses and distribute them among the masses. The tendency for these discourses is to be set as melodramas. The second chapter revises the history of melodrama and describes it as a cultural matrix, defining the operations over which it relates to the social. The third chapter looks at Doha Barbara's plot structure and construction of characters to identify the melodramatic disposition of the text and to point out the use and validation of certain national images. The last chapter takes a similar approach to chapter three and shows how El pais de las mujeres reworks the nation to accommodate it to the requirements of new economic forces. The conclusions indicate that during the crucial periods of social transformation in Venezuela, melodramatic narratives have made important contributions to identity formation in portraying what is understood to be Venezuelan, but whereas a novel like Doha Barbara presents an easily identifiable country in an specific context, the telenovela tends to erase particular traces and uses local elements to provide a platform from which is possible to globalize the nation.
Improving Spectral Upsampling with Fluorescence
Creators: name: König, Lars
name: Jung, Alisa
name: Dachsbacher, Carsten
Publisher: name: The Eurographics Association
Year: 2020
Subjects: I.3.7 [Computer Graphics]
Three Dimensional Graphics and Realism
Color
shading
shadowing
and texture

description: Modern photorealistic rendering simulates spectral behaviour of light. Since many assets are still created in different RGB color spaces, spectral upsampling of the RGB colors to a spectral representation is required to use them in a spectral renderer. Limiting the upsampled spectra to physically valid and natural, i.e. smooth, spectra results in a more realistic image, but decreases the size of the gamut of colors that can be recreated. In order to upsample wide gamut color spaces with colors outside the gamut of physically valid reflectance spectra, a previous approach added fluorescence to create accurate and physically valid representations. We extend this approach to increase the realism and accuarcy while considering memory and computation time.
description: Workshop on Material Appearance Modeling
description: Acquiring Accurate Input
description: 9
description: 12
description: Lars König, Alisa Jung, and Carsten Dachsbacher
description: Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color, shading, shadowing, and texture
A Genetic Algorithm Based Heterogeneous Subsurface Scattering Representation
Creators: name: Kurt, Murat
Publisher: name: The Eurographics Association
Year: 2020
Subjects: I.3.7 [Computer Graphics]
Three Dimensional Graphics and Realism
Color
shading
shadowing
and texture

description: In this paper, we present a novel heterogeneous subsurface scattering (sss) representation, which is based on a combination of Singular Value Decomposition (SVD) and genetic optimization techniques. To find the best transformation that is applied to measured subsurface scattering data, we use a genetic optimization framework, which tries various transformations to the measured heterogeneous subsurface scattering data to find the fittest one. After we apply the best transformation, we compactly represent measured subsurface scattering data by separately applying the SVD per-color channel of the transformed profiles. In order to get a compact and accurate representation, we apply the SVD on the model errors, iteratively. We validate our approach on a range of optically thick, real-world translucent materials. It's shown that our genetic algorithm based heterogeneous subsurface scattering representation achieves greater visual accuracy than alternative techniques for the same level of compression.
description: Workshop on Material Appearance Modeling
description: Subsurface Scattering Issues
description: 13
description: 16
description: Murat Kurt
description: Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color, shading, shadowing, and texture
Sequential single-photon and direct two-photon absorption processes for Xe interacting with attosecond XUV pulses
Creators: name: Hadjipittas, Antonis
name: Banks, H. I. B.
name: Bergues, B.
name: Emmanouilidou, Agapi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate the interaction of Xe with isolated attosecond XUV pulses. Specifically, we calculate the ion yields and determine the pathways leading to the formation of ionic charged states up to Xe$^{5+}$. To do so, in our formulation we account for single-photon absorption, sequential multi-photon absorption, direct two-photon absorption, single and double Auger decays, and shake-off. We compare our results for the ion yields and for ion yield ratios with recent experimental results obtained for 93 eV and 115 eV attosecond XUV pulses. In particular, we investigate the role that a sequence of two single-photon ionization processes plays in the formation of Xe$^{4+}$. We find that each one of these two processes ionizes a core electron and thus leads to the formation of a double core-hole state. Remarkably, we find that the formation of Xe$^{5+}$ involves a direct two-photon absorption process and the absorption of a total of three photons.
description: 8 pages, 4 figures
jciinsight-5-139640.pdf
Creators: name: Fan, Min
name: Yang, Kun
name: Xiaohui Wang
name: Yanan  Wang
name: Tu, Fei
name: Tuanzhu Ha
name: Liu, Li
name: Williams, David
name: Chuanfu Li
Publisher: name: Health Research Alliance
Year: 2021
Subjects: subject: 60802 Animal Cell and Molecular Biology
subject: FOS: Biological sciences
subject: 60602 Animal Physiology - Cell
subject: Cell Biology
subject: 60103 Cell Development, Proliferation and Death

description: Endothelial cell HSPA12B and yes-associated protein cooperatively regulate angiogenesis following myocardial infarction.
On the Nature of Perceptual Translucency
Creators: name: Gigilashvili, Davit
name: Thomas, Jean-Baptiste
name: Hardeberg, Jon Yngve
name: Pedersen, Marius
Publisher: name: The Eurographics Association
Year: 2020
Subjects: subject: I.3.6 [Computer Graphics]
subject: Methodology and Techniques
subject: Standards
subject: J.4 [Social and Behavioral Sciences]
subject: Psychology
subject: FOS: Psychology

description: Translucency is an appearance attribute used to characterize materials with some degree of subsurface light transport. Although translucency as a radiative transfer inside the medium is relatively well understood, translucency as a perceptual attribute leaves much room for interpretation. Our understanding of the translucency perception mechanisms of the human visual system remains limited. No agreement exists on how to quantify perceived translucency, how to compare translucency of multiple objects and materials, how translucency relates to transparency and opacity, and what are the perceptual dimensions of it. We highlight the challenges in perception research arisen by these ambiguities and argue for the need for standardization.
description: Workshop on Material Appearance Modeling
description: Subsurface Scattering Issues
description: 17
description: 20
description: Davit Gigilashvili, Jean-Baptiste Thomas, Jon Yngve Hardeberg, and Marius Pedersen
description: Categories and Subject Descriptors (according to ACM CCS): I.3.6 [Computer Graphics]: Methodology and Techniques- Standards J.4 [Social and Behavioral Sciences]: Psychology
Dark Energy and Viscous Cosmology
Creators: name: Brevik, I.
name: Gorbunova, O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Singularities in the dark energy universe are discussed, assuming that there is a bulk viscosity in the cosmic fluid. In particular, it is shown how the physically natural assumption of letting the bulk viscosity be proportional to the scalar expansion in a spatially flat FRW universe can drive the fluid into the phantom region (w < -1), even if lies in the quintessence region (w > -1) in the non-viscous case.
description: 11 pages. Printing error in eq.(23) corrected. To appear in Gen. Rel. Grav
Entanglement in spin-one Heisenberg chains
Creators: name: Wang, XiaoGuang
name: Li, HaiBin
name: Sun, Zhe
name: Li, You-Quan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By using the concept of negativity, we study entanglement in spin-one Heisenberg chains. Both the bilinear chain and the bilinear-biquadratic chain are considered. Due to the SU(2) symmetry, the negativity can be determined by two correlators, which greatly facilitate the study of entanglement properties. Analytical results of negativity are obtained in the bilinear model up to four spins and the two-spin bilinear-biquadratic model, and numerical results of negativity are presented. We determine the threshold temperature before which the thermal state is doomed to be entangled.
description: 7 pages and 4 figures
MANURE AS A PUBLIC HEALTH ISSUE: WHAT ACCOUNTABILITY AND DIRECTION FOR LIVESTOCK AGRICULTURE?
Creators: name: Mussell, Al
name: Martin, Larry J.
name: Mussell, Al
name: Martin, Larry J.
Publisher: name: Unknown
Year: 2000
Subjects: Livestock Production/Industries

description: The contamination of the municipal water supply in Walkerton, Ontario with E. coli and the resulting human tragedy shocked the public. While we may never know the source of the contamination, an anxious public is looking for answers and livestock agriculture is a leading suspect. In particular, "factory farms" are coming under increased scrutiny. What is livestock's record of safety and accountability with respect to manure runoff and water contamination, and what can be done to ensure that livestock operations are both safe and efficient? Little hard evidence exists on these topics- this paper raises questions and discusses the following issues: * What are the sources of water contamination in rural areas, and how significant is livestock agriculture's contribution to the problem? * Are "factory farms" responsible for water quality problems? * What steps must be taken to ensure that livestock agriculture does not degrade water quality and remains competitive? Commercial livestock facilities in Canada have received increased public scrutiny recently. For example, Maclean's cover story for June 12th, 20001 asserts that "there are dangerous consequences of factory farming that are being felt across the country". The concerns relate to perceived environmental and public health problems related to manure. But what is the evidence supporting them, and how do they relate to increasing farm sizes and agri-food competitiveness?
jciinsight-5-139640.pdf
Creators: name: Fan, Min
name: Yang, Kun
name: Xiaohui Wang
name: Wang, Yana
name: Tu, Fei
name: Tuanzhu Ha
name: Liu, Li
name: Williams, David
name: Chuanfu Li
Publisher: name: Health Research Alliance
Year: 2021
Subjects: subject: Cell Biology
subject: 60103 Cell Development, Proliferation and Death
subject: FOS: Biological sciences
subject: 60802 Animal Cell and Molecular Biology

description: Endothelial cell HSPA12B and yes-associated protein cooperatively regulate angiogenesis following myocardial infarction.
WHAT THE ENVIRONMENTAL COMMISSIONER SAID: THE FEDERAL REPORT CARD ON AGRICULTURE IN ONTARIO AND QUEBEC
Creators: name: Mussell, Al
name: Brethour, Cher
name: Martin, Larry J.
name: Mussell, Al
name: Brethour, Cher
name: Martin, Larry J.
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy

description: On October 2nd, 2001 the federal environment commissioner released her annual report. In it, she offered an assessment of the environmental impact of agriculture in the Great Lakes basin and the federal government's role. Specifically, the environment commissioner addressed: * Manure and fertilizer management * Soil erosion * Environmental impact of farm programs * Federal role in sustainable agriculture. Based on environmental audits and other analyses, the commissioner presented the following conclusions: * There is a problem with the accumulation of soil nutrients as a result of manure and chemical fertilizer applications in the Great Lakes basin * Soil erosion is a continuing problem that is not receiving adequate attention or data collection * Agriculture and Agri-food Canada (AAFC) has not adequately taken account of the environmental impact of farm programs, and farm programs can have impacts that conflict with AAFC's stated environmental goals * AAFC has not appropriately targeted funding for the environment by region, and there is a greater need for cross-compliance in farm programs * Certain agricultural practices are unsustainable, and the framework to alter unsustainable farming practices is lacking. But are these conclusions warranted, given the mix of belief and credible evidence that typically permeates discussions of agriculture and the environment? In this special report, we provide a brief analysis of the Environment Commissioner's report as it relates to livestock and sustainability. Specifically, we clarify a misconception in the Commissioner's comparison between livestock waste and human waste, and discuss the sustainability of crop nutrients (loadings and uptake) in Ontario and Quebec as they relate to manure loadings and fertilizer use.
Unsupervised Learning of Non-Hermitian Topological Phases
Creators: name: Yu, Li-Wei
name: Deng, Dong-Ling
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Non-Hermitian topological phases bear a number of exotic properties, such as the non-Hermitian skin effect and the breakdown of conventional bulk-boundary correspondence. In this paper, we introduce an unsupervised machine learning approach to classify non-Hermitian topological phases based on diffusion maps, which are widely used in manifold learning. We find that the non-Hermitian skin effect will pose a notable obstacle, rendering the straightforward extension of unsupervised learning approaches to topological phases for Hermitian systems ineffective in clustering non-Hermitian topological phases. Through theoretical analysis and numerical simulations of two prototypical models, we show that this difficulty can be circumvented by choosing the on-site elements of the projective matrix as the input data. Our results provide a valuable guidance for future studies on learning non-Hermitian topological phases in an unsupervised fashion, both in theory and experiment.
description: 7+12 pages, 3+8 figures
Interference between independent fluctuating condensates
Creators: name: Polkovnikov, Anatoli
name: Altman, Ehud
name: Demler, Eugene
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a problem of interference between two independent condensates, which lack true long range order. We show that their interference pattern contains information about correlation functions within each condensate. As an example we analyze the interference between a pair of one dimensional interacting Bose liquids. We find universal scaling of the average fringe contrast with system size and temperature that depends only on the Luttinger parameter. Moreover the full distribution of the fringe contrast, which is also equivalent to the full counting statistics of the interfering atoms, changes with interaction strength and lends information on high order correlation functions. We also demonstrate that the interference between two-dimensional condensates at finite temperature can be used as a direct probe of the Kosterlitz-Thouless transition. Finally, we discuss generalization of our results to describe the intereference of a periodic array of independent fluctuating condensates.
description: 7 pages, 3 figures, published version
Bonn Appearance Benchmark
Creators: name: Merzbach, Sebastian
name: Klein, Reinhard
Publisher: name: The Eurographics Association
Year: 2020
Subjects: I.3.7 [Computer Graphics]
Three Dimensional Graphics and Realism
Color
shading
shadowing
and texture

description: There is a general shortage of standardized comparisons in the field of appearance modeling. We therefore introduce a benchmark for assessing the quality of reflectance models on a dataset of high quality material measurements obtained with a commercial appearance scanner. The dataset currently consists of 56 fabric materials which are measured as radiometrically calibrated HDR images together with a precise surface geometry. We pose a public challenge to attract further participation and spark new research. Participants evaluate their models on provided directional light and view sampling to recreate the appearance of a set of unseen images per material. The results are automatically evaluated under various image metrics and ranked in a public leaderboard. Our benchmark provides standardized testing and thus enables fair comparisons between related works. We also release baseline SVBRDF material fits.
description: Workshop on Material Appearance Modeling
description: Material Appearance Modeling Community Infrastructure
description: 21
description: 24
description: Sebastian Merzbach and Reinhard Klein
description: Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Color, shading, shadowing, and texture
The homogeneous and isotropic Weyssenhoff fluid
Creators: name: Boehmer, Christian G.
name: Bronowski, Piotr
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a Weyssenhoff fluid assuming that the spacetime is homogeneous and isotropic, therefore being relevant for cosmological considerations of gravity theories with torsion. In this paper, it is explicitely shown that the Weyssenhoff fluids obeying the Frenkel condition or the Papapetrou-Corinaldesi condition are incompatible with the cosmological principle, which restricts the torsion tensor to have only a vector and an axial vector component. Moreover it turns out that the Weyssenhoff fluid obeying the Tulczyjew condition is also incompatible with the cosmological principle. Based on this result we propose to reconsider a number of previous works that analysed cosmological solutions of Einstein-Cartan theory, since their spin fluids usually did not obey the cosmological principle.
description: 9 pages, invited submission by UJP; revised acknowledgements
Periodic fast radio bursts from forcedly precessing neutron stars, anomalous torque, and internal magnetic field for FRB 180916.J0158+65 and FRB 121102
Creators: name: Sob'yanin, Denis Nikolaevich
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A recent discovery of the periodic activity of the repeating fast radio burst source FRB 180916.J0158+65 in the Canadian Hydrogen Intensity Mapping Experiment (CHIME) hints at possible origin of the FRB from a freely precessing neutron star with a magnetar magnetic field of about $10^{16}$ G. However, the absence of simultaneously detected high-energy emission in the Swift and AGILE observations imposes stringent constraints on the field magnitude and questions the possibility of such a progenitor. We show that consideration of forced precession of a neutron star does not encounter the difficulty. This kind of precession takes place even if the neutron star is not deformed and is brought about by the anomalous moment of electromagnetic forces induced by stellar rotation and determined by non-corotational currents. Contrary to what is expected for the currents of corotation, the anomalous torque calculated by the direct method appears to be non-zero. If the observed 16.35-day period corresponds to the period of stellar precession, the inferred internal magnetic field appears to be about $6\times10^{14}$ G for rotational period 1 s. For another possibly periodic FRB 121102 with 157-day period the magnetic field is even lower, $2\times10^{14}$ G, thereby justifying earlier considerations and not ruling out the hypothesis of FRB origin from precessing neutron stars.
description: 8 pages, 2 figures, MNRAS accepted
The Value of Information Provision at Iowa Feeder Cattle Auctions
Creators: name: Bulut, Harun
name: Lawrence, John D.
name: Bulut, Harun
name: Lawrence, John D.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Controlling a variety of feeder cattle characteristics, and market and sale conditions, we estimate that certified vaccinations claims along with at least 30 days weaning claims bring in a premium of $6.13/cwt, which is nearly two times of that for similar uncertified claims, compared to no vaccinations and weaning claims at all in Iowa feeder cattle auctions. This indicates that the third-party certification is supported in the market as a tool to signal quality in terms of vaccinations and weaning claims towards preconditioning.
Validating UTF-8 In Less Than One Instruction Per Byte
Creators: name: Keiser, John
name: Lemire, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The majority of text is stored in UTF-8, which must be validated on ingestion. We present the lookup algorithm, which outperforms UTF-8 validation routines used in many libraries and languages by more than 10 times using commonly available SIMD instructions. To ensure reproducibility, our work is freely available as open source software.
A Taxonomy of Bidirectional Scattering Distribution Function Lobes for Rendering Engineers
Creators: name: McGuire, Morgan
name: Dorsey, Julie
name: Haines, Eric
name: Hughes, John F.
name: Marschner, Steve
name: Pharr, Matt
name: Shirley, Peter
Publisher: name: The Eurographics Association
Year: 2020

description: We propose a taxonomy and terminology for rendering engineers to use in describing the main categories of mathematical lobes that are combined to implement bidirectional scattering distribution functions (BSDFs). Bringing consistent language to this area will increase clarity in API names, textbooks, and scholarly publications. We developed this taxonomy and terminology for consistency across our own upcoming works. The taxonomy corresponds to the major BSDF implementation branches in a renderer, rather than surface appearance, and is consistent with physical considerations. The terminology aligns as closely as possible with previous work in rendering and adjacent fields, while resolving inconsistencies among them. The taxonomy is not intended for art direction, machine vision research, optics, material/lighting engineering, or other areas where the critical distinctions between materials differ from those needed by a renderer.
description: Workshop on Material Appearance Modeling
description: Material Appearance Modeling Community Infrastructure
description: 25
description: 28
description: Morgan McGuire, Julie Dorsey, Eric Haines, John F. Hughes, Steve Marschner, Matt Pharr, and Peter Shirley
Time- and Polarization-Resolved Optical Spectroscopy of Colloidal CdSe Nanocrystal Quantum Dots in High Magnetic Fields
Creators: name: Furis, Madalina
name: Hollingsworth, Jennifer
name: Klimov, Victor I.
name: Crooker, Scott A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In an effort to elucidate the spin (rather than charge) degrees of freedom in colloidal semiconductor nanocrystal quantum dots, we report on a series of static and time-resolved photoluminescence measurements of colloidal CdSe quantum dots in ultra-high magnetic fields up to 45 Tesla. At low temperatures (1.5 K - 40 K), the steady-state photoluminescence (PL) develops a high degree of circular polarization with applied magnetic field, indicating the presence of spin-polarized excitons. Time-resolved PL studies reveal a marked decrease in radiative exciton lifetime with increasing magnetic field and temperature. Except for an initial burst of unpolarized PL immediately following photoexcitation, high-field time-resolved PL measurements reveal a constant degree of circular polarization throughout the entire exciton lifetime, even in the presence of pronounced exciton transfer via Forster energy transfer processes.
description: This paper has been published in J.Phys. Chem B 109, 15332 (2005)
Study on Distribution of Edible Fungus Variety Rights of Mori Sangyo Co., Ltd.
Creators: name: WU Xueming
name: YE  Gao
name: WU Xueming
name: YE  Gao
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Variety rights, Distribution, Japan, Analysis

description: Taking the variety rights of Japanese edible fungus production enterprise Mori Sangyo Co., Ltd. as the research object, this paper analyzed the application authorization trend, variety certification period, effective varieties, etc. to clarify the key breeding fields, key breeders, and variety characteristics of Mori Sangyo Co., Ltd., and discussed its distribution of edible fungus variety rights in Japan. In addition, it provided the general methods and related indicators for analysis of variety rights.
Symmetric pairs and associated commuting varieties
Creators: name: Panyushev, Dmitri
name: Yakimova, Oksana
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L30, 17B20

description: We obtain a series of new results on the problem of irreducibility of commuting varieties associated with symmetric pairs or, in other words, $Z_2$-graded simple Lie algebras. In particular, we present many examples of reducible commuting varieties and show that the number of irreducible components can be arbitrarily large.
description: 18 pages
Generalized periodic orbits in some restricted three-body problems
Creators: name: Ortega, Rafael
name: Zhao, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We treat the circular and elliptic restricted three-body problems in inertial frames as periodically forced Kepler problems with additional singularities and explain that in this setting the main result of [4] is applicable. This guarantees the existence of an arbitrary large number of generalized periodic orbits (periodic orbits with possible double collisions regularized) provided the mass ratio of the primaries is small enough.
description: 10 pages
Is Storage at a Loss Merely an Illusion of Aggregation?
Creators: name: Franken, Jason R.V.
name: Garcia, Philip
name: Irwin, Scott H.
name: Franken, Jason R.V.
name: Garcia, Philip
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The storage at a loss paradox of positive inventories despite inadequate spot-futures price spread coverage of storage costs is an unresolved issue of long-standing interest to economists. Alternative explanations include risk premiums for futures market speculators, convenience yields from having inventories on hand, and the mismeasurement/aggregation of data. T-test analyses of disaggregated data suggest soybean price behavior consistent with intertemporal arbitrage conditions and corn price behavior that may imply convenience yields.
Comparing omnidirectional reflection from periodic and quasiperiodic one-dimensional photonic crystals
Creators: name: Barriuso, A. G.
name: Monzon, J. J.
name: Sanchez-Soto, L. L.
name: Felipe, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We determine the range of thicknesses and refractive indices for which omnidirectional reflection from quasiperiodic multilayers occurs. By resorting to the notion of area under the transmittance curve, we assess in a systematic way the performance of the different quasiperiodic Fibonacci multilayers.
description: 5 pages, 4 color figures. Comments welcome!
Are Corn and Soybean Options Too Expensive?
Creators: name: Urcola, Hernan A.
name: Irwin, Scott H.
name: Urcola, Hernan A.
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: corn
subject: soybeans
subject: options markets
subject: mispricing
subject: trading returns
subject: market efficiency

description: A growing body of recent evidence suggests that premiums for financial options might be too high. For agricultural options, market participants often make similar claims, however there is very limited scientific literature to prove or disprove such claims. This research investigates the efficiency of corn and soybean options markets by directly computing trading returns. Time effects on market efficiency are also investigated. When the sample period is considered as a whole, risk adjusted returns indicate that no profits can be made by taking either side of the corn or soybean options markets. However, when time effects are analyzed, corn calls appear to have provided excess returns during the 1998--2005 period. This result do not appear to be driven by movements in the underlying futures, since similar differences were not found for corn puts. Based on the evidence presented here, corn puts and soybean options would constitute fairly-well priced insurance tools. Further research should investigate the causes of corn call returns.
A Comparative Evaluation of Cash Flow and Batch Profit Hedging Effectiveness in Commodity Processing
Creators: name: Dahlgran, Roger A.
name: Dahlgran, Roger A.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business

description: Agribusinesses make long-term plant-investment decisions based on discounted cash flow. It is therefore incongruous for an agribusiness firm to use cash flow as a plant-investment criterion and then to completely discard cash flow in favor of batch profits as an operating objective. This paper assumes that cash flow and its stability are important to commodity processors and examines methods for hedging cash flows under continuous processing. Its objectives are (a) to determine how standard hedging models should be modified to hedge cash flows, (b) to outline the differences between cash flow hedging and profit hedging, and (c) to determine the effectiveness of hedging in reducing cash flow variability. A cash flow hedging methodology is developed. This methodology is similar to that used for batch profit hedging. This methodology balances the daily cash flow destabilizing effect of futures positions against the periodic cash flow destabilizing effect of cash price changes. The resulting cash flow hedges are simulated for soybean processors. These hedges are less effective than batch profit hedging. The reduction in cash flow variance achieved through hedging, though small, is nonetheless statistically significant.
Development Situations and Countermeasures of Gastrodia elata Industry in Zhaotong City
Creators: name: ZHU Xuewei
name: LI Qifa
name: HE Yujie
name: ZHU Xuewei
name: LI Qifa
name: HE Yujie
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Gastrodia elata in Zhaotong, Current situations of Gastrodia elata industry, Two varieties of bacteria planting

description: With the rapid development of technology, people's living standards have been greatly improved, and more and more people have started to care more about the theory and health preservation function of TCM. Gastrodia elata, as a precious Chinese herbal medicine, is harmless to human health. Due to the high economic benefits and real benefits for farmers, the G. elata industry has developed rapidly. Zhaotong is the hometown of Gastrodia elata f.glauca in China, but the current situation of the G. elata industry lags behind other producing areas. Through field survey and literature review, this paper comprehensively analyzed the development status of the G. elata industry in Zhaotong City. Combined with the natural conditions, policy conditions, and socio-economic conditions of the G. elata industry in Zhaotong City to find countermeasures and recommendations to promote the further development of the G. elata industry in Zhaotong and provide recommendations for the sustainable development of G. elata industry.
Search for Cross-Correlations of Ultra--High-Energy Cosmic Rays with BL Lacertae Objects
Creators: name: S Eye Collaboration
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Data taken in stereo mode by the High Resolution Fly's Eye (HiRes) air fluorescence experiment are analyzed to search for correlations between the arrival directions of ultra--high-energy cosmic rays with the positions of BL Lacertae objects. Several previous claims of significant correlations between BL Lacs and cosmic rays observed by other experiments are tested. These claims are not supported by the HiRes data. However, we verify a recent analysis of correlations between HiRes events and a subset of confirmed BL Lacs from the 10th Veron Catalog, and we study this correlation in detail. Due to the a posteriori nature of the search, the significance level cannot be reliably estimated and the correlation must be tested independently before any claim can be made. We identify the precise hypotheses that will be tested with statistically independent data.
description: 5 pages, 1 figure, submitted to ApJ