cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Концептуальна сутність і структура агропродовольчого ринку
Concept essence and structure of agrifood market
Creators: name: Samoilyk, Iu.
name: Samoilyk, Iu.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: market
subject: agrifood market
subject: structure of agrifood market
subject: subsystem of agrifood market

description: The approaches to identify the essence and role of the agrifood market in environment of globalization of economy gained further development in the article. The Interpretation of category “agrifood market” improved on the basis of generalization of conceptual approaches, which unlike existing, means the totality of relationships, which is identified in time and place and provide to the sale of agricultural products, processed products and by-products that are combined in a complex hierarchy orderly structured system. This system encompasses subsystems and segments that can be related and unrelated to each other. It is grounded that agrifood market is one of the subsystems of the national market and, in turn, consists of a lower level subsystems, namely market of stockbreeding-industrial product; market of crop-industrial production; adverse market of by-products.
Diquarks as Inspiration and as Objects
Creators: name: Wilczek, Frank
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is plausible that several of the most profound aspects of low-energy QCD dynamics are connected to diquark correlations, including: paucity of exotics (which is the foundation of the quark model and of traditional nuclear physics), similarity of mesons and baryons, color superconductivity at high density, hyperfine splittings, $ΔI = 1/2$ rule, and some striking features of structure and fragmentation functions. After a brief overview of these issues, I discuss how diquarks can be studied in isolation, both phenomenologically and numerically, and present approximate mass differences for diquarks with different quantum numbers. The mass-loaded generalization of the Chew-Frautschi formula provides an essential tool.
description: 15 pages, 1 figure. Solicited contribution to the Ian Kogan memorial volume, ed. M. Shifman. v2: several typos corrected
Phenomenological studies on the $\bar{B}^0\rightarrow [K^-π^+]_{S/V}[π^+π^-]_{V/S} \rightarrow K^-π^+π^+π^-$ decay
Creators: name: Qi, Jing-Juan
name: Wang, Zhen-Yang
name: Zhang, Zhu-Feng
name: Guo, Xin-Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the quasi-two-body decay model, we study the localized $CP$ violation and branching fraction of the four-body decay $\bar{B}^0\rightarrow [K^-π^+]_{S/V}[π^+π^-]_{V/S} \rightarrow K^-π^+π^-π^+$ when $K^-π^+$ and $π^-π^+$ pair invariant masses are $0.35
description: 20 pages, 4 tables
Концепції управління економічною безпекою підприємств
The concept of economic security of enterprises
Creators: name: Shumilo, О.
name: Shumilo, О.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural Finance
subject: Financial Economics
subject: Food Security and Poverty
subject: Risk and Uncertainty
subject: scientific approach
subject: scientific conceptions
subject: retail trade
subject: economic security

description: In the process of research the author has determine that system (a general system approach and an approach based on functional systems), functional, process, and situational approaches are the most effective theoretical approaches to managing the economic security of a retail trading enterprise. These approaches are the basis for management conceptions. Effective management of the enterprise economic security requires complex application of these approaches (in combinational or integral concert). The author proves that the combinational interaction consists in common and simultaneous application of several methods in the case of different combinations. The integral interaction enables to provide system continuous improvement of application of these approaches in the process of managing the enterprise economic security. The article summarizes the inherent characteristics of the most important mentioned concepts of management, which can be applied in the process of managing the enterprise economic security general view of the conception of managing the economic security of a retail trading enterprise can be formed due to the mentioned conceptions. Importance of application of each of these conceptions is stipulated by matching to goals of the economic security of a retail trading enterprise.
Genetic structure and mating patterns of diploid and polyploid Easter daisies (Townsendia hookeri, asteraceae)
Creators: name: Thompson, Stacey Lee
Publisher: name: University of British Columbia
Year: 2010

description: Reproduction in the Rocky Mountain genus Townsendia involves a complex interplay of polyploidy and apomixis. Molecular markers were used to assess genetic structure in relation to patterns of mating mode and ploidy at four hierarchical levels: within the genus, within T. hookeri, within populations of this species, and among progeny from these populations. Phylogenetic analyses of rDNA repeats indicated that polyploid apomixis has evolved multiple times within the genus. Pollen studies and analyses of cpDNA demonstrated that sexual diploids of T. hookeri are found in both northern and southern unglaciated regions, polyploid apomicts have evolved at least once in the north and thrice in the south, and these polyploid apomicts have colonized the post-glacial landscape from two refugia, suggesting that glaciation and not latitude influenced the distribution of apomicts. Pollen studies, flow cytometry, and multilocus tests on AFLP marker genotypes from four Yukon standing populations of T. hookeri indicated sexuality in one male-fertile diploid population, clonality in two male-sterile tetraploid populations, and a combination of sexual and clonal reproduction in one male-sterile polyploid population. This latter population of mixed mating mode included triploids and tetraploids and showed that evidence of cryptic sex may linger in the genomes within a morphologically asexual population. Finally, a new method for mating system analysis, which jointly estimates the rates of outcrossing, selfing, automixis and apomixis, was developed and applied to dominant AFLP marker genotypes from progeny whose mothers arose from three Yukon populations of T. hookeri, one consisting of male-fertile diploids, the other two of male-sterile tetraploids. Despite indications of sexuality in some standing populations, progeny analyses revealed that apomixis is the predominant mating mode in all populations. Levels of outcrossing were moderate in the diploid population and very low in the tetraploids. Selfing/automixis was absent in the diploids and moderate in tetraploids. These findings suggest that the correlation between ploidy and apomixis is not strict when observed on a fine scale, that polyploidy alone does not induce apomixis, and perhaps it is asexuality that selects for polyploidy within this system.
Negative differential Rashba effect in two-dimensional hole systems
Creators: name: Habib, B.
name: Tutuc, E.
name: Melinte, S.
name: Shayegan, M.
name: Wasserman, D.
name: Lyon, S. A.
name: Winkler, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate experimentally and theoretically that two-dimensional (2D) heavy hole systems in single heterostructures exhibit a \emph{decrease} in spin-orbit interaction-induced spin splitting with an increase in perpendicular electric field. Using front and back gates, we measure the spin splitting as a function of applied electric field while keeping the density constant. Our results are in contrast to the more familiar case of 2D electrons where spin splitting increases with electric field.
description: 3 pages, 3 figures. To appear in APL
Spin-fluctuation-induced pairing in twisted bilayer graphene
Creators: name: Fischer, Ammon
name: Klebl, Lennart
name: Honerkamp, Carsten
name: Kennes, Dante M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the interplay of magnetic fluctuations and Cooper pairing in twisted bilayer graphene from a purely microscopic model within a large-scale tight-binding approach resolving the Ångström scale. For local onsite repulsive interactions and using the random-phase approximation for spin fluctuations, we derive a microscopic effective pairing interaction that we use for self-consistent solutions of the Bogoliubov-de-Gennes equations of superconductivity. We study the predominant pairing types as function of interaction strength, temperature and band filling. For large regions of this parameter space, we find chiral $d$-wave pairing regimes, spontaneously breaking time-reversal symmetry, separated by magnetic instabilities at integer band fillings. Interestingly, the $d$-wave pairing is strongly concentrated in the AA regions of the moiré unit cell and exhibits phase windings of integer multiples of $2π$ around these superconducting islands, i.e. pinned vortices. The spontaneous circulating current creates a distinctive magnetic field pattern. This signature of the chiral pairing should be measurable by state-of-the-art experimental techniques.
description: 5 pages, 3 figures
D3.3: Application-specific extensions integrated with the protocol
Creators: name: Gonzalez Labrador, Hugo
name: Müller, Daniel
name: Angenent, Holger
name: Lo Presti, Giuseppe
name: Aben, Guido
name: Ferreira, Pedro
name: Sieprawski, Marcin
name: Antos, David
Publisher: name: Zenodo
Year: 2021

description: This document describes all application-specific extensions integrated with the protocols and APIs developed for the Science Mesh project.
Adoption and Intensity of Modern Bee Hive in wag Himra and North Wollo zones, Amhara region, Ethiopia
Creators: name: Abeje, A.
name: Ayen, K.
name: Awoke, M.
name: Abebaw, L.
name: Abeje, A.
name: Ayen, K.
name: Awoke, M.
name: Abebaw, L.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Production Economics
subject: Adoption
subject: Modern beehive
subject: double-hurdle Model
subject: Intensity

description: Wag Himra zone is one of the Amhara Regional State which has a potential honey production and it is a quite suitable for apiculture activities. The objectives of the study were (1) quantifying the determinant factors of the probability of adoption, (2) evaluating the intensity use of modern beehive and (3) identifying the major constraints of modern beehive production in wag Himra and north Wollo zones, Amhara Region, Ethiopia. Multi-stage sampling methods were employed. 268 rural beekeepers were interviewed for this study with proportional random sampling method from adopters and non-adopters. Among the 268 beekeepers, 97 (36.19%) and 171 (63.81%) were non-adopters and adopters respectively. Descriptive analysis and econometric (double-hurdle model) were applied using SPSS-22 and STATA-12, respectively. The first hurdle result revealed that age, the number of livestock owned, educational level, the number of local hives beekeepers possessed, training provided, the the total annual income of beekeepers, credit service, distance to Woreda agricultural office, extension service and participation in off-farm activities are the main factors that affect the probability of adoption decision. Moreover, the second hurdle revealed that age, the number of local hives beekeepers possessed, training access, credit service, and distance to Woreda agricultural office are the main factors that affect the intensity use of modern beehive. Additionally, Pests and predators, drought and lack of bee equipment and accessories are ranked as the first, second and third major constraints of beekeeping respectively which lead the bee colony to abscond and reduction of honey yield. According to the finding the authors safely recommended that those significant factors in adoption decision and intensity use of modern beehive should be considered by policy makers and planners of governmental and NGOs in setting their policies and strategies of honey production improvement interventions.
An ab-initio investigation of magnetism in two-dimensional uranium systems
Creators: name: Komelj, Matej
name: Stojic, Natasa
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The orbital and spin magnetic moments, and the X-ray-magnetic circular-dichroism (XMCD) spectra at the $M_{4,5}$ edges of the U atoms in a UAs/Co multilayer and in an $α$-U film are calculated within the framework of the density-functional theory in combination with the local-spin-density approximation (LSDA), the generalized-gradient approximation (GGA) and the LDA+$U$ method. The antiparallel arrangement between the U and Co spin magnetic moments at the interface results in the vanishing of ferromagnetism for the case of very thin Co layers. The U moments decay rapidly with the distance from the film surface. The magnitude of the magnetic-dipole term $$, which appears in the spin XMCD sum rule, is small. The different exchange-correlation treatments do not yield qualitatively different results.
Determination of the relationship between outputs and inputs in agriculture in the EU member states
Creators: name: Figurek, A.
name: Vasković, U.
name: Figurek, A.
name: Vasković, U.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: International Development
subject: Production Economics
subject: agriculture
subject: FADN
subject: analysis
subject: input
subject: output

description: The EU member states have established FADN (The Farm Accountancy Data Network) system to collect and process accounting data from agricultural holdings. The system is based on precisely defined methodology that is unique for all member states. At EU level, the data are integrated from all member countries, and bring common agricultural policy measures aimed at improving operations and improving financial results achieved in farms. This system operates on the representative sample of about 80.000 agricultural farms from the EU, which represent about 5 million of commercial farms. In this paper we present relationship of outputs and inputs in the agricultural sector of the EU Member States. On the basis of FADN data, there is a possibility of long-term planning of investment in agricultural production, the level of subsidization of agricultural production and adjusting the type and volume of production to market demand.
Geometric Aspects of the Dipolar Interaction in Lattices of Small Particles
Creators: name: Arias, Paola R.
name: Altbir, D.
name: Bahiana, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The hysteresis curves of systems composed of small interacting magnetic particles, regularly placed on stacked layers, are obtained with Monte Carlo simulations. The remanence as a function of temperature, in interacting systems, presents a peak that separates two different magnetic states. At low temperatures, small values of remanence are a consequence of antiferromagnetic order due to the dipolar interaction. At higher values of temperature the increase of the component normal to the lattice plane is responsible for the small values of remanence. The effect of the number of layers, coordination number and distance between particles are investigated.
description: 5 pages, 7 figures
title: “Die große Form liegt mir nicht”: Interview mit Ilma Rakusa
Creators: name: Sasse, Sylvia
Publisher: name: Fachinformationsdienst Slavistik
Year: 2010
Subjects: subject: Rakusa, Irma
subject: Lyrikerin
subject: Literaturwissenschaftlerin
subject: Übersetzerin
subject: Literaturkritikerin
subject: Interview
subject: 491.8

description: Über den Wind am Mittelmeer, Brodskij im Garten und Kiš im Montparnasse. Ein Gespräch mit Ilma Rakusa über ihre Autobiographie "Mehr Meer" und den osteuropäischen Literaturbetrieb.
description: novinkizurückgefragt, no. 2010-01-19
Mass-zero constrained molecular dynamics for electrode charges in simulations of electrochemical systems
Creators: name: Coretti, Alessandro
name: Scalfi, Laura
name: Bacon, Camille
name: Rotenberg, Benjamin
name: Vuilleumier, Rodolphe
name: Ciccotti, Giovanni
name: Salanne, Mathieu
name: Bonella, Sara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Classical molecular dynamics simulations have recently become a standard tool for the study of electrochemical systems. State-of-the-art approaches represent the electrodes as perfect conductors, modelling their responses to the charge distribution of electrolytes via the so-called fluctuating charge model. These fluctuating charges are additional degrees of freedom that, in a Born-Oppenheimer spirit, adapt instantaneously to changes in the environment to keep each electrode at a constant potential. Here we show that this model can be treated in the framework of constrained molecular dynamics, leading to a symplectic and time-reversible algorithm for the evolution of all the degrees of freedom of the system. The computational cost and the accuracy of the new method are similar to current alternative implementations of the model. The advantage lies in the accuracy and long term stability guaranteed by the formal properties of the algorithm and in the possibility to systematically introduce additional kinematic conditions of arbitrary number and form. We illustrate the performance of the constrained dynamics approach by enforcing the electroneutrality of the electrodes in a simple capacitor consisting of two graphite electrodes separated by a slab of liquid water.
Weak mixing angle at low energies
Creators: name: Erler, Jens
name: Ramsey-Musolf, Michael J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We determine the weak mixing angle in the MS-bar scheme at energy scales relevant for present and future low energy electroweak measurements. We relate the renormalization group evolution of the weak mixing angle to the corresponding evolution of the QED coupling and include higher-order terms in alpha_s and alpha that had not been treated in previous analyses. We also up-date the analysis of non-perturbative hadronic contributions and argue that the associated uncertainty is small compared to anticipated experimental errors. The resulting value of the low-energy weak mixing angle is sin^2 theta_W (0) = 0.23867 +- 0.00016.
description: 21 pages; 1 figure and some references added, some changes in text; final version as published
Specific aspects of logistics enterprises in the fat-and-oil industry
Creators: name: Sumets, A.
name: Sumets, A.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Production Economics
subject: enterprise
subject: fat-and-oil industry
subject: logistics
subject: logistics information system
subject: specific aspects of logistics

description: The article reveals the importance and the relevance of logistics management principles for the fat-and-oil industry enterprises. The priorities regarding the implementation of the logistical approach into the industry are specified. The specific aspects of logistics enterprises in the fat-and-oil industry are outlined. The types of material flows and the composition of the logistics industry enterprise system are identified. The factors of the synergistic effect as a result of the logistics information system implementation at the enterprises are stated. The usefulness of the logistics information system for producers and consumers of sunflower oil product are described. The specific domains of the logistics to be researched are identified.
Assessing the suitability of the MAGIC model for analysis of acidification potential in the oil sands region of northeastern Alberta
Creators: name: Kampala, Benjamin M.
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is an evaluation of the suitability of the Model of Acidification of Groundwater in Catchments (MAGIC) for estimating acidification potential in lakes in the oil sands producing region of Northeastern Alberta. Parameterization of the model is undertaken for two study lakes representing cases with differing acidification potential. Applications of MAGIC for these cases demonstrate that the model is robust for explaining the behavior of these different natural systems. Additional applications of the model demonstrate how it may be used to predict the impact of various projections of oil sands emissions on the future status of lakes affected by acidifying emissions. Under all cases, it is shown that oil sands production may occur without resulting in harmful effects on these two study lakes. Improvements in the parameterization of the model are also identified, and these include gathering more soil data and information regarding nitrogen immobilization. Extensions of this work that would lead to a greater understanding of acidification in the Oil Sands Region include: regionalizing MAGIC for Northeastern Alberta, including climate change considerations, and incorporating this or other predictive models as part of a greater management system to assess the potential acidification of lakes.
Ubiquity of entropies of intermediate factors
Creators: name: McGoff, Kevin
name: Pavlov, Ronnie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We consider topological dynamical systems $(X,T)$, where $X$ is a compact metrizable space and $T$ denotes an action of a countable amenable group $G$ on $X$ by homeomorphisms. For two such systems $(X,T)$ and $(Y,S)$ and a factor map $π: X \rightarrow Y$, an intermediate factor is a topological dynamical system $(Z,R)$ for which $π$ can be written as a composition of factor maps $ψ: X \rightarrow Z$ and $φ: Z \rightarrow Y$. In this paper we show that for any countable amenable group $G$, for any $G$-subshifts $(X,T)$ and $(Y,S)$, and for any factor map $ π:X \rightarrow Y$, the set of entropies of intermediate subshift factors is dense in the interval $[h(Y,S), h(X,T)]$. As a corollary, we also prove that if $(X,T)$ and $(Y,S)$ are zero-dimensional $G$-systems, then the set of entropies of intermediate zero-dimensional factors is equal to the interval $[h(Y,S), h(X,T)]$. Our proofs rely on a generalized Marker Lemma that may be of independent interest.
description: The zero-dimensional results have been generalized and unified relative to the previous version
Розвиток кооперативного маркетингу в Україні та світі
The cooperative marketing development in Ukraine and in the world
Creators: name: Budnik, О.
name: Budnik, О.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: agrarian sector
subject: cooperative marketing
subject: small business
subject: competitiveness

description: The article presents a case study of the cooperative marketing, used in Ukraine and in the world. The author also focuses on the small business development. The influence and negative impact of different economic factors on small business are determined. The current problems and impossibility of getting the necessary financial resources for the small companies is accented. The special attention is paid to the importance of agricultural cooperation. The essence of the concept of agricultural cooperation is specified. The main cooperative trends in Ukraine economy as well as in the world companies are reviewed and systematized. The attention is paid to the research of the sales, service, marketing, processing, supply and multipurpose cooperatives. The research also shows the necessity of marketing approaches to the modern domestic agricultural company’s activity implementation. The organizational and economic aspects of cooperative marketing are grounded. The basic problems of market adaptation in the sphere of cooperative marketing are investigated. The special attention is paid to the advantages and prospects of cooperative marketing for agricultural organizations. The features and factors of the rural economy development based on the cooperative marketing are detailed. The cooperative marketing as an effective element of the agricultural producer’s protection is under consideration.
Pion form factor using domain wall valence and asqtad sea quarks
Creators: name: LHP Collaboration
name: Fleming, George T.
name: Bonnet, Frederic D. R.
name: Edwards, Robert G.
name: Lewis, Randy
name: Richards, David G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We compute the pion electromagnetic form factor in a hybrid calculation with domain wall valence quarks and improved staggered (asqtad) sea quarks. This method can easily be extended to rho-to-gamma-pi transition form factors.
description: 3 pages, 3 figures, Lattice2004(spectrum)
Optimizing Computer-Assisted Transcription Quality with Iterative User Interfaces
Creators: name: Sperber, Matthias
name: Neubig, Graham
name: Nakamura, Satoshi
name: Waibel, Alex
Publisher: name: European Language Resources Association (ELRA)
Year: 2016

description: Computer-assisted transcription promises high-quality speech transcription at reduced costs. This is achieved by limiting human effort to transcribing parts for which automatic transcription quality is insufficient. Our goal is to improve the human transcription quality via appropriate user interface design. We focus on iterative interfaces that allow humans to solve tasks based on an initially given suggestion, in this case an automatic transcription. We conduct a user study that reveals considerable quality gains for three variations of iterative interfaces over a non-iterative from-scratch transcription interface. Our iterative interfaces included post-editing, confidence-enhanced post-editing, and a novel retyping interface. All three yielded similar quality on average, but we found that the proposed retyping interface was less sensitive to the difficulty of the segment, and superior when the automatic transcription of the segment contained relatively many errors. An analysis using mixed-effects models allows us to quantify these and other factors and draw conclusions over which interface design should be chosen in which circumstance.
Інноваційний розвиток України як основа формування біоекономіки
Innovative development of Ukraine as a basis for formation of bioeconomy
Creators: name: Butenko, V.
name: Butenko, V.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: bioeconomy
subject: innovation
subject: economic growth
subject: research and development
subject: the Global Competitiveness Index
subject: the Global Innovation Index

description: Innovation is an important factor for the economic development. Analysis of innovative development indicators makes it possible to determine the main directions of innovation as the basis of formation of the bioeconomy. There is considered the correlation dependence between the level of economic development and innovation. Ukraine has a strong position in the development of human capital (education, availability of skilled personnel, the labor market, patent activity of the population, educational and scientific infrastructure). But the organizational, institutional components and market and business environment hamper the development of innovation, the formation of the bioeconomy and economic growth. Ukraine has a high intellectual, creative and innovative potential but it does not use it in implicitly, which leads to deceleration of the economic growth and hamper the development of the bioeconomy. Ukraine will accelerate the formation of the bioeconomy, focusing on such components of the innovation as the human and resource capital, development of the high-tech economy.
Analysis of $N^{\star}$ spectra using matrices of correlation functions based on irreducible baryon operators
Creators: name: LHP Collaboration
name: Basak, S.
name: Sato, I.
name: Wallace, S.
name: Edwards, R.
name: Fleming, G. T.
name: Richards, D.
name: Fiebig, R.
name: Heller, U. M.
name: Morningstar, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results for ground and excited-state nucleon masses in quenched lattice QCD using anisotropic lattices. Group theoretical constructions of local and nonlocal straight-link irreducible operators are used to obtain suitable sources and sinks. Matrices of correlation functions are diagonalized to determine the eigenvectors. Both chi-square fitting and Bayesian inference with an entropic prior are used to extract masses from the correlation functions in a given channel. We observe clear separation of the excited state masses from the ground state mass. States of spin >= 5/2 have been isolated by use of G_2 operators.
description: Lattice2004 (spectrum)
D4.1 Blueprint for the European Citizen Science Academy
Creators: name: Haklay, Muki
name: Montanari, Madeleine Cléa
Publisher: name: Zenodo
Year: 2023
Subjects: European Citizen Science Academy
Training
Education
Citizen Science
Participatory Research

description: This deliverable covers the various steps that have been undertaken to develop the path to creating and developing a European Citizen Science Academy (ECS Academy). It is an aggregation of documents and reports that have been elaborated throughout the first year of the ECS project, with a community of practice of citizen science educators and trainers, the European Citizen Science Association and the ECS consortium. They set the stage to the co-creation of the ECS Academy.

The ECS Academy is a work package within the European Citizen Science (ECS) project. It seeks to promote citizen science within various stakeholder spheres, countries, by being a point of reference for training material and by regrouping a community of practice around citizen science training and education to develop training needs.
Order-preserving dynamics in one dimension -- single-file diffusion and caging from the perspective of dynamical density functional theory
Creators: name: Wittmann, René
name: Löwen, Hartmut
name: Brader, Joseph M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Dynamical density functional theory (DDFT) is a powerful variational framework to study the nonequilibrium properties of colloids by only considering a time-dependent one-body number density. Despite the large number of recent successes, properly modeling the long-time dynamics in interacting systems within DDFT remains a notoriously difficult problem, since structural information, accounting for temporary or permanent particle cages, gets lost. Here we address such a caging scenario by reducing it to a clean one-dimensional problem, where the particles are naturally ordered (arranged on a line) by perfect cages created by their two next neighbors. In particular, we construct a DDFT approximation based on an equilibrium system with an asymmetric pair potential, such that the corresponding one-body densities still carry the footprint of particle order. Applied to a system of confined hard rods, this order-preserving dynamics (OPD) yields exact results at the system boundaries, in addition to the imprinted correct long-time behavior of density profiles representing individual particles. In an open system, our approach correctly reproduces the reduced long-time diffusion coefficient and subdiffusion, characteristic for a single-file setup. These observations cannot be made using current forms of DDFT without particle order.
description: A limited number of open eprints of the original article is available at https://www.tandfonline.com/eprint/MNBYTHZKYBH3QQH5T5PA/full?target=10.1080/00268976.2020.1867250
Розвиток фермерських господарств і їхнє місце в аграрному виробництві регіону
Development of farms and their place in agricultural production area
Creators: name: Gorikhovskyi, M.
name: Gorikhovskyi, M.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Farm Management
subject: farms
subject: competitiveness
subject: land resources
subject: production
subject: development
subject: analysis

description: The article analyzes the land fund of Khmelnitsky region, the dynamics of the production of agricultural economic output by types of farms, as well as a comparison with the size of the area of the farm with farmer households in other countries. Also, conditions were analyzed and opportunities that improve the competitiveness of farms. The paper reveals the modern challenges and opportunities for agricultural production in the Khmelnitsky region. The central object of research is the farm, as one of the key elements of sustainable development of the region in the context of the development of rural areas and communities. Also, the relationship was analyzed between farm size and competitiveness, as well as given the factors that would improve the competitiveness of farm data. From our research shows that the development of agriculture as a whole Khmelnitsky region still has potential, but only if increasing the number of farms and small and medium enterprises. With the consolidation of enterprises Khmelnytsky region could lose by charging taxes and the budget will face a global problem of unemployment in rural areas as farmers keep themselves and their families, family. In addition, the farmer will develop its rural areas and local communities.
title: A study of teaching assistants' engagement with a mathematics block of learning
Creators: name: Crisp, Martin Timothy Palmer
Publisher: name: The Open University
Year: 2017

description: This study explores the learning experiences of students on a four-week block on mathematics as part of The Open University’s Foundation Degree for primary teaching assistants. The key research questions seek to identify the outcomes and processes of the teaching assistants’ study in relation to their work ‘supporting’ children’s mathematical learning, and their wider experience as teaching assistants. The study adopts an interpretivist, constructivist approach based on an illuminative evaluation framework (Parlett & Hamilton, 1972). A questionnaire gathered data from 67 students to provide a broad picture of their experience during the block. Progressively focused telephone interviews were carried out with nine students using their written assignments, online forum posts and questionnaire responses as prompts to discussion. From the literature review I identified two potentially relevant areas of theory, in particular, Harland & Kinder’s (1997) ordering of INSET outcomes, and Lave & Wenger’s (1991) theory of ‘legitimate peripheral participation’. All nine teaching assistants identified positive outcomes from their study relating to their practice, in particular their increased confidence in mathematics as a subject, and ability to work with children in a fine-grained way to the extent that many aspects of their practice might be more accurately characterised as teaching rather than ‘supporting’ learning. A key finding concerned the ways in which the teaching assistants’ study enabled them to develop agency as practitioners, and strengthened their participation in the professional life of their school. The study brought out how issues surrounding the learning of mathematics sometimes heightened the extent to which this occurred. Harland & Kinder’s hierarchy of INSET outcomes and the notion of legitimate peripheral participation were found to be helpful concepts for understanding the outcomes of the block of study on the work of teaching assistants, but were both identified as insufficiently nuanced to adequately characterise the diversity and complexity of their varied roles and individual career trajectories.
Confinement from Instantons or Merons
Creators: name: Negele, J. W.
name: Lenz, F.
name: Thies, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In contrast to ensembles of singular gauge instantons, which are well known to fail to produce confinement, it is shown that effective theories based on ensembles of merons or regular gauge instantons do produce confinement. Furthermore, when the scale is set by the string tension, the action density, topological susceptibility, and glueball masses are similar to those arising in lattice QCD.
description: 3 pages, 5 figures. Talk given at Lattice2004 (topology and confinement) Fermilab June 21-26, 2004
title: The influence of management transactions on stock returns : evidence for Switzerland
Creators: name: Graas, Antoine
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Directors' dealings
subject: private and public information
subject: firm valuation
subject: disclosure requirements

description: This thesis examines the influence of management transactions on stock returns in Switzerland. As trading based on private information is forbidden and in a bid to improve stock market integrity, insiders are obligated to disclose their transactions to the Swiss stock exchange. The data sample consists of 1568 transactions from May 2011 to June 2014. An event study and a multivariate regression analysis are applied to measure abnormal returns around transactions. The results show significant negative abnormal performances following sale transactions and significant positive abnormal performances following purchase transactions. This indicates that management transactions reveal previously unknown information to investors. Further observations suggest firm size as an influencing factor with deals in small company stocks triggering greater market reactions. Somewhat unexpectedly, stock price momentum seems to have a considerable impact on long-term price development as well.
Status of International Lattice Data Grid -- An Overview --
Creators: name: Ukawa, Akira
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report on the status of the International Lattice Data Grid.
description: Lattice2004(ILDG),2 pages
Non-local Entanglement and Fast Scrambling in De-Sitter Holography
Creators: name: Geng, Hao
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study holographic entanglement and information scrambling in de-Sitter (dS) space in the context of the DS/dS correspondence. We find that our previously identified non-local entanglement structure of dS vacua can be extended out of the time-reflection symmetric slice. We extend the geometry to a two-sided configuration and calculate the zero-time mutual information between two intervals on different sides when there is a localized shock wave in the bulk. Interestingly, we find that the information scrambling time saturates the fast scrambler bound proposed by Sekino and Susskind and that the shock wave renders a wormhole to be traversable. Furthermore, we calculate a two-sided out-of-time-ordered correlator (OTOC) in the late time regime and we see that, before scrambling, it exponentially grows with an exponent whose value saturates the maximal bound of chaos proposed by Maldacena, Shenker and Stanford. At the end, we provide an explanation why the exponential growing of the late-time OTOC with the maximal bound of chaos saturated and the traversability of the wormhole are simple results of the non-local entanglement structure and point out that this is a realization of the ER=EPR proposal.
description: 24 pages, 10 figures. v2 A typo is corrected and references are added. v3 a revised version.v4 references added Comments are welcomed!
Peroxidase activity of yeast iso-1-cytochrome c
Creators: name: Villegas, Jose
Publisher: name: University of British Columbia
Year: 2010

description: Understanding the peroxidase activity of cytochrome c is essential for the development of potential applications of this useful property in diagnostics, chemical synthesis and bioremediation. Such knowledge may also be relevant for understanding the chemical basis of the physiological consequences of this reaction under conditions of oxidative stress induced by toxic species generated by various cellular processes. In the present work, the thermodynamic, spectroscopic and catalytic properties of two classes of cytochrome c variants have been studied in an effort to gain greater insight into the structural basis for the peroxidase activity of the cytochrome. The ultimate goal of this was to identify a strategy for the design or identification of new cytochrome c variants with significantly enhanced peroxidase activity. Development of one class of these variants was based on structural insight provided by X-ray crystallography, and the resulting variants were produced by site-directed mutagenesis. The other class of variants were obtained by a directed evolution method in which randomly-generated variants with elevated peroxidase activity were identified by the use of an activity screen. The results obtained suggest that the changes in the peroxidase activity observed for each variant are related not only to an overall destabilization of the protein structure but also to localized variations around the prosthetic group that function in combination to regulate the kinetic behavior of this protein. Such structural factors are discussed here in the context of the thermodynamic, spectroscopic and catalytic properties of each variant.
First-Order Methods for Nonconvex Quadratic Minimization
Creators: name: Carmon, Yair
name: Duchi, John C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider minimization of indefinite quadratics with either trust-region (norm) constraints or cubic regularization. Despite the nonconvexity of these problems we prove that, under mild assumptions, gradient descent converges to their global solutions, and give a non-asymptotic rate of convergence for the cubic variant. We also consider Krylov subspace solutions and establish sharp convergence guarantees to the solutions of both trust-region and cubic-regularized problems. Our rates mirror the behavior of these methods on convex quadratics and eigenvector problems, highlighting their scalability. When we use Krylov subspace solutions to approximate the cubic-regularized Newton step, our results recover the strongest known convergence guarantees to approximate second-order stationary points of general smooth nonconvex functions.
description: This is a SIAM Review preprint covering our papers "Gradient Descent Finds the Cubic-Regularized Non-Convex Newton Step" (SIOPT, 2019) and "Analysis of Krylov Subspace Solutions of Regularized Nonconvex Quadratic Problems" (NeurIPS, 2018); some materials in Section 6 are new
D2.5: Service Included in EOSC-Future
Creators: name: Müller, Daniel
name: Angenent, Holger
name: Antoš, David
name: Daneček, Milan
name: Furter, Renato
name: Trompert, Ron
Publisher: name: Zenodo
Year: 2023

description: Report on the inclusion of the ScienceMesh into EOSC-Future.
title: Diameter, Girth And Other Properties Of Highly Symmetric Graphs
Creators: name: Erskine, Grahame
Publisher: name: The Open University
Year: 2017

description: We consider a number of problems in graph theory, with the unifying theme being the properties of graphs which have a high degree of symmetry. In the degree-diameter problem, we consider the question of finding asymptotically large graphs of given degree and diameter. We improve a number of the current best published results in the case of Cayley graphs of cyclic, dihedral and general groups. In the degree-diameter problem for mixed graphs, we give a new corrected formula for the Moore bound and show non-existence of mixed Cayley graphs of diameter 2 attaining the Moore bound for a range of open cases. In the degree-girth problem, we investigate the graphs of Lazebnik, Ustimenko and Woldar which are the best asymptotic family identified to date. We give new information on the automorphism groups of these graphs, and show that they are more highly symmetrical than has been known to date. We study a related problem in group theory concerning product-free sets in groups, and in particular those groups whose maximal product-free subsets are complete. We take a large step towards a classification of such groups, and find an application to the degree-diameter problem which allows us to improve an asymptotic bound for diameter 2 Cayley graphs of elementary abelian groups. Finally, we study the problem of graphs embedded on surfaces where the induced map is regular and has an automorphism group in a particular family. We give a complete enumeration of all such maps and study their properties.
How creators manage the risks and constraints of online hyper(in)visibility - Interview record
Creators: name: Are, Carolina
Publisher: name: Northumbria University
Year: 2024
Subjects: classificationCode: 470101
subject: Communication studies

description: This is the repository concerning the interview connected to the above study, 12 interviews carried out with censored, marginalised content creators in the UK, Ireland, Italy, Australia and the USA.This article complicates understandings of online visibility by highlighting the experiences of a diverse set of ‘sexual(ity)’ content creators, for whom visibility comes with substantial risks. This repository is about a set of 12 semi-structured, virtual ethnographic interviews via the videoconferencing software Zoom with Instagram and TikTok content creators, who had publicly shared that they believed they had been de-platformed after malicious user reports. These interviews constitute the Northumbria side of this dataset for this co-written article. The data are not publicly available due to the privacy of research participants. To request access please contact carolina.are@northumbria.ac.uk
Quantum dynamics under simultaneous and continuous measurement of noncommutative observables
Creators: name: Jiang, Chao
name: Watanabe, Gentaro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider simultaneous and continuous measurement of two noncommutative observables of the system whose commutator is not necessarily a $c$-number. We revisit the Arthurs-Kelly model and generalize it to describe the simultaneous measurement of two observables of the system. Using this generalized model, we continuously measure the system by following the scheme proposed by Scott and Milburn [Scott and Milburn, Phys. Rev. A 63, 042101 (2001)]. We find that the unconditioned master equation reduces to the Lindblad form in the continuous limit. In addition, we find that the master equation does not contain a cross term of these two measurements. Finally, we propose a scheme to prepare the state of a two-level system in an external field by feedback control based on the simultaneous, continuous measurement of the two observables.
description: 12 pages, 4 figures