cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Prediction Methods and Applications in the Science of Science: A Survey
Creators: name: Hou, Jie
name: Pan, Hanxiao
name: Guo, Teng
name: Lee, Ivan
name: Kong, Xiangjie
name: Xia, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Science of science has become a popular topic that attracts great attentions from the research community. The development of data analytics technologies and the readily available scholarly data enable the exploration of data-driven prediction, which plays a pivotal role in finding the trend of scientific impact. In this paper, we analyse methods and applications in data-driven prediction in the science of science, and discuss their significance. First, we introduce the background and review the current state of the science of science. Second, we review data-driven prediction based on paper citation count, and investigate research issues in this area. Then, we discuss methods to predict scholar impact, and we analyse different approaches to promote the scholarly collaboration in the collaboration network. This paper also discusses open issues and existing challenges, and suggests potential research directions.
description: 17 pages, 6 figures
Beris morrisii Dale 1841
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Stratiomyidae
Beris
Beris morrisii

description: Beris morrisii DALE, 1841
Bgld, Donnerskirchen, Kirchberg, 22.6.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
Philipomyia aprica
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Philipomyia
Philipomyia aprica

description: Philipomyia aprica (MEIGEN, 1820)
Bgld, Donnerskirchen, Teufelsgraben, 22.6.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
COVID-19 therapy target discovery with context-aware literature mining
Creators: name: Martinc, Matej
name: Škrlj, Blaž
name: Pirkmajer, Sergej
name: Lavrač, Nada
name: Cestnik, Bojan
name: Marzidovšek, Martin
name: Pollak, Senja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The abundance of literature related to the widespread COVID-19 pandemic is beyond manual inspection of a single expert. Development of systems, capable of automatically processing tens of thousands of scientific publications with the aim to enrich existing empirical evidence with literature-based associations is challenging and relevant. We propose a system for contextualization of empirical expression data by approximating relations between entities, for which representations were learned from one of the largest COVID-19-related literature corpora. In order to exploit a larger scientific context by transfer learning, we propose a novel embedding generation technique that leverages SciBERT language model pretrained on a large multi-domain corpus of scientific publications and fine-tuned for domain adaptation on the CORD-19 dataset. The conducted manual evaluation by the medical expert and the quantitative evaluation based on therapy targets identified in the related work suggest that the proposed method can be successfully employed for COVID-19 therapy target discovery and that it outperforms the baseline FastText method by a large margin.
description: Accepted to the 23rd International Conference on Discovery Science (DS 2020)
Modeling tau transport in the axon initial segment
Creators: name: Kuznetsov, Ivan A.
name: Kuznetsov, Andrey V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: By assuming that tau protein can be in seven kinetic states, we developed a model of tau protein transport in the axon and in the axon initial segment (AIS). Two separate sets of kinetic constants were determined, one in the axon and the other in the AIS. This was done by fitting the model predictions in the axon with experimental results and by fitting the model predictions in the AIS with the assumed linear increase of the total tau concentration in the AIS. The calibrated model was used to make predictions about tau transport in the axon and in the AIS. To the best of our knowledge, this is the first paper that presents a mathematical model of tau transport in the AIS. Our modeling results suggest that binding of free tau to MTs creates a negative gradient of free tau in the AIS. This leads to diffusion-driven tau transport from the soma into the AIS. The model further suggests that slow axonal transport and diffusion-driven transport of tau work together in the AIS, moving tau anterogradely. Our numerical results predict an interplay between these two mechanisms: as the distance from the soma increases, the diffusion-driven transport decreases, while motor-driven transport becomes larger. Thus, the machinery in the AIS works as a pump, moving tau into the axon.
description: final accepted version
Bio-energy from Mountain Pine Beetle Timber and Forest Residuals: The Economics Story
Creators: name: Niquidet, Kurt
name: Stennes, Brad
name: Van Kooten, G. Cornelis
name: Niquidet, Kurt
name: Stennes, Brad
name: Van Kooten, G. Cornelis
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: forest economics
subject: biomass and bio-energy
subject: forest pests

description: In light of the large volumes of pine killed in the Interior forests in British Columbia by the mountain pine beetle, many are keen to employ forest biomass as an energy source. To assess the feasibility of a wood biomass-fired power plant in the BC Interior it is necessary to know both how much physical biomass might be available over the life of a plant, but also its location because transportation costs are likely to be a major operating cost for any facility. To address these issues, we construct a mathematical programming model of fiber flows in the Quesnel Timber Supply Area of BC over a 25-year time horizon. The focus of the model is on minimizing the cost of supplying feedstock throughout space and time. Results indicate that over the life of the project feedstock costs will more than double, increasing from $54.60/BDt ($0.039/kWh) to $116.14/BDt ($0.083/kWh).
Towards High Performance Relativistic Electronic Structure Modelling: The EXP-T Program Package
Creators: name: Oleynichenko, Alexander V.
name: Zaitsevskii, Andréi
name: Eliav, Ephraim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Modern challenges arising in the fields of theoretical and experimental physics require new powerful tools for high-precision electronic structure modelling; one of the most perspective tools is the relativistic Fock space coupled cluster method (FS-RCC). Here we present a new extensible implementation of the FS-RCC method designed for modern parallel computers. The underlying theoretical model, algorithms and data structures are discussed. The performance and scaling features of the implementation are analyzed. The software developed allows to achieve a completely new level of accuracy for prediction of properties of atoms and molecules containing heavy and superheavy nuclei.
ECONOMIC OPPORTUNITIES FOR DAIRY COW CULLING MANAGEMENT OPTIONS
Creators: name: Ott, Stephen L.
name: Ott, Stephen L.
Publisher: name: Unknown
Year: 1996
Subjects: subject: Livestock Production/Industries
subject: NAHMS
subject: dairy
subject: cattle
subject: monitoring
subject: epidemiology
subject: production
subject: economics
subject: culling
subject: transportation
subject: milk
subject: marketing
subject: disease
subject: slaughter condemnation

description: Due to a lack of national information about cull dairy cows, the USDA's National Animal Health Monitoring System (NAHMS) Dairy '96 Study investigated culling management practices. Operations included in the study represented 83.1 percent of U.S. milk cows. Most dairy cows were culled for reasons associated with their inability to profitably produce high-quality milk and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all cull dairy cows in the US are intended for beef slaughter, as only about 4.4 percent were sent to other dairy operations. Nearly 77 percent of cows intended for beef slaughter were sent to markets, auctions, and sale barns, while 22 percent were sent straight to slaughter facilities. However, high levels of transportation of cull dairy cows can result in stresses, bruising, and disease exposure. producers of larger herds, classified as having 200 or more cows, tended to cull a larger percentage of cows for low production that was unrelated to disease than did producers of smaller herds, classified as having fewer than 100 cows: cows having low production consisted of 28.1 percent of cull cows from larger herds versus 19.2 percent of cull cows from smaller herds. Use of specific milk production levels to determine timing of culling in combination with monitoring of cow health in order to market cows earlier can prevent losses due to condemnations at slaughter, which can cost the producer $12 for every nonfed bovine marketed. Contact for this paper: Steven Ott
Spin-orbit induced mixed-spin ground state in $R$NiO$_3$ perovskites probed by XAS: new insight into the metal to insulator transition
Creators: name: Piamonteze, C.
name: de Groot, F. M. F.
name: Tolentino, H. C. N.
name: Ramos, A. Y.
name: Massa, N. E.
name: Alonso, J. A.
name: Martínez-Lope, M. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on a Ni L$_{2,3}$ edges x-ray absorption spectroscopy (XAS) study in $R$NiO$_3$ perovskites. These compounds exhibit a metal to insulator ($MI$) transition as temperature decreases. The L$_{3}$ edge presents a clear splitting in the insulating state, associated to a less hybridized ground state. Using charge transfer multiplet calculations, we establish the importance of the crystal field and 3d spin-orbit coupling to create a mixed-spin ground state. We explain the $MI$ transition in $R$NiO$_3$ perovskites in terms of modifications in the Ni$^{3+}$ crystal field splitting that induces a spin transition from an essentially low-spin (LS) to a mixed-spin state.
description: 4 pages, 4 figures, accepted as PRB - Rapid Comm. Dez. 2004
Antiphrisson trifarius
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Antiphrisson
Antiphrisson trifarius

description: Antiphrisson trifarius (LOEW, 1849)
Bgld, Zurndorf, NSG, 27.6.17, 2 Ex.
Nach Fauna Europaea neu für Österreich!
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
Remote implementations of partially unknown quantum operations of multiqubits
Creators: name: Wang, An Min
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and prove the protocol of remote implementations of partially unknown quantum operations of multiqubits belonging to the restricted sets. Moreover, we obtain the general and explicit forms of restricted sets and present evidence of their uniqueness and optimization. In addition, our protocol has universal recovery operations that can enhance the power of remote implementations of quantum operations.
description: 15 pages, the published version
Vertex Partitions of Chordal Graphs
Creators: name: Wood, David R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: A \emph{$k$-tree} is a chordal graph with no $(k+2)$-clique. An \emph{$\ell$-tree-partition} of a graph $G$ is a vertex partition of $G$ into `bags', such that contracting each bag to a single vertex gives an $\ell$-tree (after deleting loops and replacing parallel edges by a single edge). We prove that for all $k\geq\ell\geq0$, every $k$-tree has an $\ell$-tree-partition in which every bag induces a connected $\floor{k/(\ell+1)}$-tree. An analogous result is proved for oriented $k$-trees.
description: submitted to a journal
Risk Ranking: Investigating Expert and Public Differences in Evaluating Food Safety Risks
Creators: name: Webster, Kevin D.
name: Jardine, Cindy G.
name: McMullen, Lynn
name: Cash, Sean B.
name: Webster, Kevin D.
name: Jardine, Cindy G.
name: McMullen, Lynn
name: Cash, Sean B.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Risk ranking
subject: Food safety
subject: Experts
subject: Public

description: The allocation of resources with respect to food safety issues requires that decision-makers prioritize these issues, which may conflict with the public’s opinions on these matters. These differences between the experts’ perception of risk and that of the public were examined. A modified Carnegie Mellon risk ranking model was used to rank six food safety issues. The six food safety issues used in the discussions were: Bovine Spongiform Encephalopathy (BSE), Escherichia coli O157:H7, Salmonella, botulism, Paralytic Shellfish Poisoning (PSP), and acrylamide. Focus groups were conducted using public (n=29) and expert (n=21) participants, and a public survey was commissioned to further explore the focus group results. Key themes were identified from the focus groups as reasons why risks were rated high or low. Explanations for why choices were made included availability, affect, numeracy and optimistic bias. The effect of attribute framing seemed to be the most influential in a participant’s choices.
On the SPA Convention and Project
Creators: name: Kalinowski, Jan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Reconstruction of the fundamental supersymmetric theory and its breaking mechanism will require high-precision tools. Here a brief introduction to SPA, the Supersymmetry Parameter Analysis (SPA) Convention and Project, is presented which is based on a consistent set of conventions and input parameters.
description: LaTeX, 10 pages, 2 figures, Talk given at the International Workshop on Photon Linear Colliders, Kazimierz, Poland, 5-8 September 2005
Modifying surfaces in 4-manifolds by twist spinning
Creators: name: Kim, Hee Jung
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R57, 14J80, 57R95

description: In this paper, given a knot K, for any integer m we construct a new surface Sigma_K(m) from a smoothly embedded surface Sigma in a smooth 4-manifold X by performing a surgery on Sigma. This surgery is based on a modification of the `rim surgery' which was introduced by Fintushel and Stern, by doing additional twist spinning. We investigate the diffeomorphism type and the homeomorphism type of (X,Sigma) after the surgery. One of the main results is that for certain pairs (X,Sigma), the smooth type of Sigma_K(m) can be easily distinguished by the Alexander polynomial of the knot K and the homeomorphism type depends on the number of twist and the knot. In particular, we get new examples of knotted surfaces in CP^2, not isotopic to complex curves, but which are topologically unknotted.
description: This is the version published by Geometry & Topology on 25 February 2006
Cataclysmic variables as possible counterparts of ancient Far Eastern guest stars
Creators: name: Hoffmann, Susanne M
name: Vogt, Nikolaus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Continuing our efforts to select possible classical nova candidates among Far Eastern guest stars and to identify them with modern cataclysmic variables (CVs), we present a search for counterparts in 24 promising areas of the sky corresponding to ancient observations between 204 BCE and 1690 CE. These areas have been derived by us in a previous paper. Based on physical entities of the CVs in our areas and reasonable magnitude limits compatible with the distribution of known eruption amplitudes of telescopic classical novae, we present a catalogue of a total of 80 CVs and related targets which could possibly have caused the historical sightings. This list could potentially be reduced by additionally discussing further information more vaguely given in the text. In some cases, we present a detailed discussion of the interpretation of ancient sources confronting them with properties of the brightest CVs in the field. In order to estimate whether this list is representative, we discuss the distribution of CV types in our catalogue of counterparts for the historical events. Compared to the entire sky, the surface density of most CV subtypes in our search fields reveals similar values, except for polars and intermediate polars, i. e. strongly magnetic CVs, for which a significant excess in our search fields was detected. Finally, we give an outlook towards future research in this topic, and add in an Appendix a complete atlas of the celestial maps of all 24 guest star events, displaying the search areas and locations of CVs within them.
description: 12 pages, 29 figures (26 online only)
Policy Briefing. Developing Education Policies in Europe to Enhance Cultural Literacy
Creators: name: Maine, Fiona
name: Cook, Victoria
name: Harrison, Fiona
name: Lähdesmäki, Tuuli
name: Koistinen, Anna-Kaisa
name: Ylönen, Susanne
name: Zaleskienė, Irena
name: Duoblienė, Lilija
name: Kairė, Sandra
Publisher: name: Zenodo
Year: 2019
Subjects: intercultural dialogue
diversity
tolerance
empathy
inclusion
cultural literacy

description: Policy Briefing Europe needs education policies that seek to advance intercultural dialogue in a way which reflects the super-diversity of today’s Europe. The DIALLS project seeks to respond to these needs by developing the concept and idea of cultural literacy and creating a Cultural Literacy Learning Programme for young people. For DIALLS, cultural literacy means a social practice that is inherently dialogic and based on learning and gaining knowledge through empathetic, tolerant and inclusive interaction with others. Based on our analysis, we recommend that education policymakers be more precise and specific with culture-related concepts and better reflect increasing pluralism in Europe. We recommend that cultural literacy is used as a conceptual and practical means in education policy documentation to deal with differences and cultural interactions.
Modelling Reference-Dependent and Labelling Effects in Consumers’ Functional Food Choices
Creators: name: Zou, Ning Ning (Helen)
name: Hobbs, Jill E.
name: Zou, Ning Ning (Helen)
name: Hobbs, Jill E.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: consumer utility
subject: functional food
subject: labelling policy

description: This paper examines the reference-dependent and labelling effects when consumers make choices about functional foods, and explores how changes in reference points could alter individuals’ preferences. Functional food (probiotic yogurt) and regular food (regular yogurt) are used as examples to explore the potential reference-dependent effects and labelling effects. A consumer utility model with reference point effects is developed. The paper also explores how to model the effects of different labelling (health claim) policies, which could influence consumer preferences by changing consumers’ reference points.
Augmenting Molecular Images with Vector Representations as a Featurization Technique for Drug Classification
Creators: name: de Marchi, Daniel
name: Budhiraja, Amarjit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Biomolecules (q-bio.BM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: One of the key steps in building deep learning systems for drug classification and generation is the choice of featurization for the molecules. Previous featurization methods have included molecular images, binary strings, graphs, and SMILES strings. This paper proposes the creation of molecular images captioned with binary vectors that encode information not contained in or easily understood from a molecular image alone. Specifically, we use Morgan fingerprints, which encode higher level structural information, and MACCS keys, which encode yes or no questions about a molecules properties and structure. We tested our method on the HIV dataset published by the Pande lab, which consists of 41,127 molecules labeled by if they inhibit the HIV virus. Our final model achieved a state of the art AUC ROC on the HIV dataset, outperforming all other methods. Moreover, the model converged significantly faster than most other methods, requiring dramatically less computational power than unaugmented images.
X-ray Binaries in the Globular Cluster 47 Tucanae
Creators: name: Heinke, C. O.
name: Grindlay, J. E.
name: Edmonds, P. D.
name: Cohn, H. N.
name: Lugger, P. M.
name: Camilo, F.
name: Bogdanov, S.
name: Freire, P. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Chandra observations of globular clusters provide insight into the formation, evolution, and X-ray emission mechanisms of X-ray binary populations. Our recent (2002) deep observations of 47 Tuc allow detailed study of its populations of quiescent LMXBs, CVs, MSPs, and active binaries (ABs). First results include the confirmation of a magnetic CV in a globular cluster, the identification of 31 additional chromospherically active binaries, and the identification of three additional likely quiescent LMXBs containing neutron stars. Comparison of the X-ray properties of the known MSPs in 47 Tuc with the properties of the sources of uncertain nature indicates that relatively few X-ray sources are MSPs, probably only ~30 and not more than 60. Considering the \~30 implied MSPs and 5 (candidate) quiescent LMXBs, and their canonical lifetimes of 10 and 1 Gyr respectively, the relative birthrates of MSPs and LMXBs in 47 Tuc are comparable.
description: 6 pages, 2 figures (needs AIP style file). To appear in the conference proceedings of `Interacting Binaries: Accretion, Evolution & Outcomes' (Cefalu, July 4-10 2004)
Controlled and combined remote implementations of partially unknown quantum operations of multiqubits using GHZ states
Creators: name: Wang, An Min
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and prove protocols of controlled and combined remote implementations of partially unknown quantum operations belonging to the restricted sets [An Min Wang: PRA, \textbf{74}, 032317(2006)] using GHZ states. We detailedly describe the protocols in the cases of one qubit, respectively, with one controller and with two senders. Then we extend the protocols to the cases of multiqubits with many controllers and two senders. Because our protocols have to demand the controller(s)'s startup and authorization or two senders together working and cooperations, the controlled and combined remote implementations of quantum operations definitely can enhance the security of remote quantum information processing and potentially have more applications. Moreover, our protocol with two senders is helpful to farthest arrive at the power of remote implementations of quantum operations in theory since the different senders perhaps have different operational resources and different operational rights in practice.
description: 26 pages, the submitted version
An Ontological approach to representing historical knowledge
Creators: name: Abar, Vanesa Mirzaee
Publisher: name: University of British Columbia
Year: 2009

description: Electronic versions of historical documents are traditionally limited in both the representations they allow as well as the level of computational manipulation they support. Most electronic documents have two minimal advantages over their hard-copy printed counterparts: availability and keyword search. This means that electronic versions of printed matter do not allow the search for concepts, or the relations between concepts, found within a document. In this work, we present a novel approach to this issue by using ontologies to represent the semantics of the knowledge contained in historical documents. We utilize an evolving methodology to design and build an ontology to represent the information in the book, "The History of the Iranian Constitution. " After a review of available ontology development environments, we selected Protege-2000 to formalize and instantiate our ontology. The ontology was later evaluated by utilizing a set of competency questions and motivating scenarios. Our implementation was successful in answering these questions as well as in providing support for the selected scenarios. Our implementation and the evaluation results are presented along with our proposed future work.
Intermittent resetting potentials
Creators: name: Mercado-Vásquez, Gabriel
name: Boyer, Denis
name: Majumdar, Satya N.
name: Schehr, Grégory
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the non-equilibrium steady states and first passage properties of a Brownian particle with position $X$ subject to an external confining potential of the form $V(X)=μ|X|$, and that is switched on and off stochastically. Applying the potential intermittently generates a physically realistic diffusion process with stochastic resetting toward the origin, a topic which has recently attracted a considerable interest in a variety of theoretical contexts but has remained challenging to implement in lab experiments. The present system exhibits rich features, not observed in previous resetting models. The mean time needed by a particle starting from the potential minimum to reach an absorbing target located at a certain distance can be minimized with respect to the switch-on and switch-off rates. The optimal rates undergo continuous or discontinuous transitions as the potential strength $μ$ is varied across non-trivial values. A discontinuous transition with metastable behavior is also observed for the optimal strength at fixed rates.
description: 7 Figures
The Transmission of Price Trends from Consumers to Producers and Tests of Market Power
Creators: name: Lkassbi, Driss
name: West, Gale E.
name: Clark, J. Stephen
name: Lkassbi, Driss
name: West, Gale E.
name: Clark, J. Stephen
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Market power
subject: food processing
subject: cointegration

description: This study examines the competitiveness of four Canadian agricultural industries (eggs, milk, chicken and turkey) using a general equilibrium farm to retail pricing model developed by Wohlgenant (1989). The model generates retail and farm pricing equations that are estimated using maximum likelihood developed by Johansen (1992). The results indicate that in all cases, long-run constant returns is rejected, indicating market power within the Canadian retail to farm marketing sector. The model also finds more cointegrating vectors than predicted by theory, also inconsistent with competitive markets. Results are based on commercial disappearance as a proxy for consumer demand and therefore confounding between uncompetitive markets and quality differences may be indicated. Less ambiguous results would be obtained if consumer expenditures rather than commercial disappearance data were available. Still, results are rather emphatic in rejection of competitive markets in food markets in Canada. More competitive markets are indicated in the United States using similar methods.
Choerades dioctriaeformis
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Choerades
Choerades dioctriaeformis

description: Choerades dioctriaeformis (MEIGEN, 1820)
Bgld, Breitenbrunn, Thenau, 6.6.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
On the Generalized Dirac Equation for Fermions with Two Mass States
Creators: name: Kruglov, S. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The generalized Dirac equation of the second order, describing particles with spin 1/2 and two mass states, is analyzed. The projection operators extracting states with definite energy and spin projections are obtained. The first order generalized Dirac equation in the 20-dimensional matrix form and the relativistically invariant bilinear form are derived. We obtain the canonical energy-momentum tensor and density of the electromagnetic current expressed through the 20-component wave function. Minimal and non-minimal electromagnetic interactions of fermions are considered, and the quantum-mechanical Hamiltonian is found. It is shown that there are only causal propagations of waves in the approach considered.
description: 12 pages, typos corrected
Multi-terminal electronic transport in boron nitride encapsulated TiS$_3$ nanosheets
Creators: name: Papadopoulos, Nikos
name: Flores, Eduardo
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Ares, Jose R.
name: Sanchez, Carlos
name: Ferrer, Isabel J.
name: Castellanos-Gomez, Andres
name: Steele, Gary A.
name: van der Zant, Herre S. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied electrical transport as a function of carrier density, temperature and bias in multi-terminal devices consisting of hexagonal boron nitride (h-BN) encapsulated titanium trisulfide (TiS$_3$) sheets. Through the encapsulation with h-BN, we observe metallic behavior and high electron mobilities. Below $\sim$60 K an increase in the resistance, and non-linear transport with plateau-like features in the differential resistance are present, in line with the expected charge density wave (CDW) formation. Importantly, the critical temperature and the threshold field of the CDW phase can be controlled through the back-gate.
Newman-Penrose quantities as valuable tools in astrophysical relativity
Creators: name: Bruni, Marco
name: Nerozzi, Andrea
name: White, Frances
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this talk I will briefly outline work in progress in two different contexts in astrophysical relativity, i.e. the study of rotating star spacetimes and the problem of reliably extracting gravitational wave templates in numerical relativity. In both cases the use of Weyl scalars and curvature invariants helps to clarify important issues.
description: 3 pages. Proceedings of 16th SIGRAV conference, Vietri, Italy, September 2004
Choerades fimbriata
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Choerades
Choerades fimbriata

description: Choerades fimbriata (MEIGEN, 1820)
NÖ, Hainburg, Spitzerberg, 12.7.01; Bgld, Leitha-Auen E Gerhaus, 18.7.17.
Neu für Niederösterreich und Burgenland. In FRANZ (1989) nur 2 Fundangaben aus Ö.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
Dimensional Reduction of Helium-4 Inside Argon Plated MCM-41 Nanopores
Creators: name: Nichols, Nathan
name: Prisk, Timothy R.
name: Warren, Garfield
name: Sokol, Paul
name: Del Maestro, Adrian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The angstrom-scale coherence length describing the superfluid wavefunction of helium-4 at low temperatures has prevented its preparation in a truly one-dimensional geometry. Mesoporous ordered silica-based structures, such as the molecular sieve MCM-41, offer a promising avenue towards physical confinement, but the minimal pore diameters that can be chemically synthesized have proven to be too large to reach the quasi-one-dimensional limit. We present an active nano-engineering approach to this problem by pre-plating MCM-41 with a single, well controlled layer of Ar gas before filling the pores with helium. The structure inside the pore is investigated via experimental adsorption isotherms and neutron scattering measurements that are in agreement with large scale quantum Monte Carlo simulations. The results demonstrate angstrom and kelvin scale tunability of the effective confinement potential experienced by 4He atoms inside the MCM-41, with the Ar layer reducing the diameter of the confining media into a regime where a number of solid layers surround a one-dimensional quantum liquid.
description: 14 pages, 14 figures; updated Fig. 8 with additional data and corrected typos. For associated data and code repository see: https://github.com/DelMaestroGroup/PlatedHe4Nanopores
Farm Animal Welfare and Quality Verification
Creators: name: Uzea, Adrian D.
name: Hobbs, Jill E.
name: Uzea, Adrian D.
name: Hobbs, Jill E.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: farm animal welfare
subject: quality assurance
subject: labelling
subject: certification
subject: heterogeneous consumers.

description: Existing empirical evidence suggests that farm animal welfare may not be a top-of-mind issue for many consumers in North America. Nevertheless, there is pressure from animal welfare groups on food retailers and processors to implement more stringent requirements for their suppliers. Is the demand for more stringent animal welfare protocols primarily determined by a subset of consumers with very strong preferences or by an underlying change in consumer and societal preferences? Who do consumers trust for credible quality assurances with respect to farm animal welfare attributes? This paper provides a basis for further analysis of these issues. The roles of different stakeholders in delivering farm animal welfare quality assurances to consumers are first discussed. Then a social welfare analysis of the Canadian market for animal friendly pork is presented under different scenarios with respect to the strength of consumer preferences and the existence of voluntary standards versus mandatory standards. The analysis suggests that a situation of voluntary labelling that is reasonably credible is desirable as it maximizes the welfare that accrues to all players on the market. Furthermore, this scenario allows heterogeneous consumers to choose between different combinations of price and quality according to their preferences. The paper concludes with suggestions for further research.
Geometric Quantum Information Structure in Quantum Fields and their Lattice Simulation
Creators: name: Klco, Natalie
name: Savage, Martin J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An upper limit to distillable entanglement between two disconnected regions of massless non-interacting scalar field theory has an exponential decay defined by a geometric decay constant. When regulated at short distances with a spatial lattice, this entanglement abruptly vanishes beyond a dimensionless separation, defining a negativity sphere. In two spatial dimensions, we determine this geometric decay constant between a pair of disks and the growth of the negativity sphere toward the continuum through a series of lattice calculations. Making the connection to quantum field theories in three-spatial dimensions, assuming such quantum information scales appear also in quantum chromodynamics (QCD), a new relative scale may be present in effective field theories describing the low-energy dynamics of nucleons and nuclei. We highlight potential impacts of the distillable entanglement structure on effective field theories, lattice QCD calculations and future quantum simulations.
description: 9 pages, 3 figures
Choerades marginata
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Choerades
Choerades marginata

description: Choerades marginata (LINNAEUS, 1758)
Bgld, Donnerskirchen, Teufelsgraben, 22.6.17, 2 Ex.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 766, DOI: 10.5281/zenodo.4004374
An Experimental Investigation of the Impact of Fat Taxes: Prices Effects, Food Stigma, and Information Effects on Economics Instruments to Improve Dietary Health
Creators: name: Cash, Sean B.
name: Lacanilao, Ryan D.
name: Adamowicz, Wiktor L.
name: Raine, Kim
name: Cash, Sean B.
name: Lacanilao, Ryan D.
name: Adamowicz, Wiktor L.
name: Raine, Kim
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: obesity
subject: health policy
subject: fat taxes
subject: warning labels
subject: choice experiments

description: There is currently no published research on how food taxes may affect consumer behaviour when the imposition of the tax itself may be considered a source of consumer information. The work undertaken here seeks to address this gap in the literature by using experimental methods to enhance understanding on the joint effects of price changes induced by a fat tax and the stigma associated with the application of the tax. First, we conduct an interdisciplinary literature review (drawing from economics, psychology, and health promotion) and theoretical investigation of the impact of stigma on economic choice behaviours. We then employ Attribute-Based Stated Choice Methods (ABSCM) to elicit consumer response to fat tax scenarios that rely only on price changes, and to those that involve both price changes and stigma effects. The study is still ongoing, and will use a computer-assisted field data collection approach to collect data from participants at grocery stores and/or other food purchase venues. Econometric analysis of the resulting data will allow us to investigate the price response, stigma effect, and price-stigma interaction elicited by various taxation and labelling schemes. Preliminary results from pre-test samples are discussed here.
Implications of $b\to sμμ$ Anomalies for Future Measurements of $B \to K^{(*)} ν\bar ν$ and $K\to πν\bar ν$
Creators: name: Descotes-Genon, Sébastien
name: Fajfer, Svjetlana
name: Kamenik, Jernej F.
name: Novoa-Brunet, Martín
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the consequences of deviations from the Standard Model observed in $b\to sμμ$ transitions for flavour-changing neutral-current processes involving down-type quarks and neutrinos. We derive the relevant Wilson coefficients within an effective field theory approach respecting the SM gauge symmetry, including right-handed currents, a flavour structure based on approximate $U(2)$ symmetry, and assuming only SM-like light neutrinos. We discuss correlations among $B \to K^{(*)} ν\bar ν$ and $K\to πν\bar ν$ branching ratios in the case of linear Minimal Flavour Violation and in a more general framework, highlighting in each case the role played by various New Physics scenarios proposed to explain $b\to sμμ$ deviations.
description: 7 pages, 2 figures
Asymmetric dynamics and critical behavior in the Bak-Sneppen model
Creators: name: Garcia, Guilherme J. M.
name: Dickman, Ronald
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate, using mean-field theory and simulation, the effect of asymmetry on the critical behavior and probability density of Bak-Sneppen models. Two kinds of anisotropy are investigated: (i) different numbers of sites to the left and right of the central (minimum) site are updated and (ii) sites to the left and right of the central site are renewed in different ways. Of particular interest is the crossover from symmetric to asymmetric scaling for weakly asymmetric dynamics, and the collapse of data with different numbers of updated sites but the same degree of asymmetry. All non-symmetric rules studied fall, independent of the degree of asymmetry, in the same universality class. Conversely, symmetric variants reproduce the exponents of the original model. Our results confirm the existence of two symmetry-based universality classes for extremal dynamics.
description: 14 pages, 8 figures, 1 table
PHENIX results on collision energy dependent Levy HBT correlations from √sNN= 15 to 200 GeV
Creators: name: Kincses, Daniel
Publisher: name: Zenodo
Year: 2020
Subjects: wpcf18
phenix
levy
hbt
rhic
au+au
correlations
pion

description: Talk presented at the Workshop for Particle Correlations and Femtoscopy, 2018 conference. An overview of Levy/HBT correlation results in PHENIX.
Quality of service provisioning in cellular mobile networks
Creators: name: Yu, Fei
Publisher: name: University of British Columbia
Year: 2009

description: In recent years, tremendous growth has occurred in the use of cellular mobile communications around the world. This thesis studies Quality of Service (QoS) provisioning in cellular mobile networks. In order to guarantee the handoff dropping probability of mobile users in cellular networks, call admission control and bandwidth reservation schemes are proposed based on more realistic assumptions than those made in existing proposals. A mobility prediction scheme is derived from data compression techniques that are both theoretically optimal and good in practice. In order to utilize resources more efficiently, the proposed scheme predicts not only which cell the mobile will handoff to but also when the handoff will occur. Based on the mobility prediction, bandwidth is reserved to guarantee a given target handoff dropping probability. Simulation results show that the proposed schemes meet our design goals and outperform the static reservation scheme. We also develop a framework of combining QoS provisioning and mobility management in cellular mobile networks. The key component of this framework is a common mobility prediction scheme, which can be used in both locating/paging mobiles and in making admission decisions. Novel QoS provisioning and mobility management schemes are proposed in this framework. The performance of the proposed schemes is evaluated using simulations. Adaptive multimedia applications that can operate over a wide range of available bandwidths are expected to be used in future cellular mobile networks. We present a QoS provisioning scheme in adaptive multimedia cellular networks via reinforcement learning. The proposed scheme does not require explicit state transition probabilities, and therefore, the underlying assumptions of this scheme are more realistic than those in previous schemes. Simulation results demonstrate the superior performance of the proposed scheme over some of the existing methods. Finally, call admission control for cellular-to-Internet protocol (IP) internetworking is studied. In order to provide QoS to the Internet and avoid scalability problems, several recent papers propose endpoint measurement-based admission control (EMAC) scheme. Although EMAC has many desirable features in the wireline networks as shown in previous work, in this thesis, we show that several distinct characteristics in cellular mobile networks make EMAC difficult to implement. A novel mobile-EMAC (M-EMAC) scheme for cellular-to-IP internetworking is proposed. Simulation results show that M-EMAC outperforms EMAC in cellular mobile networks.
Correlated Insulating States at Fractional Fillings of the WS2/WSe2 Moiré Lattice
Creators: name: Huang, Xiong
name: Wang, Tianmeng
name: Miao, Shengnan
name: Wang, Chong
name: Li, Zhipeng
name: Lian, Zhen
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Okamoto, Satoshi
name: Xiao, Di
name: Shi, Su-Fei
name: Cui, Yong-Tao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Moiré superlattices of van der Waals materials, such as twisted graphene and transitional metal dichalcogenides, have recently emerged as a fascinating platform to study strongly correlated states in two dimensions, thanks to the strong electron interaction in the moiré minibands. In most systems, the correlated states appear when the moiré lattice is filled by integer number of electrons per moiré unit cell. Recently, correlated states at fractional fillings of 1/3 and 2/3 holes per moiré unit cell has been reported in the WS2/WSe2 heterobilayer, hinting the long range nature of the electron interaction. In this work, employing a scanning microwave impedance microscopy technique that is sensitive to local electrical properties, we observe a series of correlated insulating states at fractional fillings of the moiré minibands on both electron- and hole-doped sides in angle-aligned WS2/WSe2 hetero-bilayers, with certain states persisting at temperatures up to 120 K. Monte Carlo simulations reveal that these insulating states correspond to ordering of electrons in the moiré lattice with a periodicity much larger than the moiré unit cell, indicating a surprisingly strong and long-range interaction beyond the nearest neighbors. Our findings usher in unprecedented opportunities in the study of strongly correlated states in two dimensions.