cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
GLOBALIZACJA A POSTAWY TURYSTÓW NA OBSZARACH WIEJSKICH POMORZA ŚRODKOWEGO – ASPEKTY ZARZĄDCZE
Creators: name: Feczko, Janusz
name: Feczko, Janusz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: globalization
subject: tourist bearings
subject: rural areas
subject: Central Pomerania
subject: management

description: The aim of study was to investigate the inhabitants’ selected attitudes related to globalization, which contributes to changing rural areas in Central Pomerania (Poland 2015); according to the management of development this areas. Research on inhabitants’ attitudes was conducted on a 216 representative group of people. The questionnaire-based interview method was used at the turn of the year 2014/2015. Continuation of the traditional pattern of behaviour, underestimation of knowledge-skills-qualifications for improving the standard of living, low activity in consuming rural tourism products were identified. Study results indicate that systematic optimization of operational management of the region is purposeful. Especially greater use of management tools: methods and measurements of efficiency, effectiveness, and rationality.
Determination of the strong vertices of doubly heavy baryons with pseudoscalar mesons in QCD
Creators: name: Alrebdi, H. I.
name: Aliev, T. M.
name: Şimşek, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strong coupling constant of doubly heavy baryons with light pseudoscalar mesons $ π$ and $ K $ are computed within the light cone sum rules. We take into account two-particle and three-particle distribution amplitudes of the said pseudoscalar mesons. We compare our result with the one existing in the literature.
description: 8 pages, 2 figures, 1 table
Additional file 2 of Profiling Italian cat and dog owners’ perceptions of pet food quality traits
Creators: name: Vinassa, Marica
name: Vergnano, Diana
name: Valle, Emanuela
name: Giribaldi, Marzia
name: Nery, Joana
name: Prola, Liviana
name: Bergero, Domenico
name: Schiavone, Achille
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2. Map of Italy. Map of Italy and segmentation in North, Center, South and Islands. Source: own source.
Analytic gradients for spin multiplets in natural orbital functional theory
Creators: name: Mitxelena, Ion
name: Piris, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Analytic energy gradients with respect to nuclear motion are derived for non-singlet compounds in the natural orbital functional theory. We exploit the formulation for multiplets in order to obtain a simple formula valid for any many-electron system in its ground mixed state with a total spin S and all possible spin projection Sz values. We demonstrate that the analytic gradients can be obtained without resorting to linear response theory or involving iterative procedures. It is required a single evaluation, so integral derivatives can be computed on-the-fly along the calculation and thus improve the effectiveness of screening by the Schwarz inequality. Results for small and medium size molecules with many spin multiplicities are shown. Our results are compared with experimental data and accurate theoretical equilibrium geometries.
description: 8 pages, 6 Tables
On the discrete version of the Schwarzschild problem
Creators: name: Khatsymovsky, V. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83C27, 83C57

description: We consider a Schwarzschild type solution in the discrete Regge calculus formulation of general relativity quantized within the path integral approach. Earlier, we found a mechanism of a loose fixation of the background scale of Regge lengths. This elementary length scale is defined by the Planck scale and some free parameter of such a quantum extension of the theory. Besides, Regge action was reduced to an expansion over metric variations between the tetrahedra and, in the main approximation, is a finite-difference form of the Hilbert-Einstein action. Using for the Schwarzschild problem a priori general non-spherically symmetrical ansatz, we get finite-difference equations for its discrete version. This defines a solution which at large distances is close to the continuum Schwarzschild geometry, and the metric and effective curvature at the center are cut off at the elementary length scale. Slow rotation can also be taken into account (Lense-Thirring-like metric). Thus we get a general approach to the classical background in the quantum framework in zero order: it is an optimal starting point for the perturbative expansion of the theory; finite-difference equations are classical, the elementary length scale has quantum origin. Singularities, if any, are resolved.
description: 24 pages, 1 figure; Special issue "Selected Papers from the 17th Russian Gravitational Conference -- International Conference on Gravitation, Cosmology and Astrophysics (RUSGRAV-17)"; explanations and refs added
WYNIKI FINANSOWE GOSPODARSTW ROLNICZYCH A OBCIĄŻENIE PODATKIEM ROLNYM
Creators: name: Ganc, Marzena
name: Mądra-Sawicka, Magdalena
name: Ganc, Marzena
name: Mądra-Sawicka, Magdalena
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: agriculture tax
subject: agriculturALe holdings
subject: FADN system
subject: financial results

description: The paper presents the relationship between the agricultural tax and the financial results achieved in individual farms. The amount of agricultural tax noticed insignificant share in relation to financial results of farms and it could be ascertained as generally low fiscal burden. The study included individual farms participating in the FADN farm accounting. In the analyzed period 2004-2009 did not noticed uniform trend in the fiscal burden of farms according to basic categories of financial results in aspect of their economic strength and type of farming.
title: Selecting tuning parameters in minimum distance estimators
Creators: name: Warwick, Jane
Publisher: name: The Open University
Year: 2002

description: Many minimum distance estimators have the potential to provide parameter estimates which are both robust and efficient and yet, despite these highly desirable theoretical properties, they are rarely used in practice. This is because the performance of these estimators is rarely guaranteed per se but obtained by placing a suitable value on some tuning parameter. Hence there is a risk involved in implementing these methods because if the value chosen for the tuning parameter is inappropriate for the data to which the method is applied, the resulting estimators may not have the desired theoretical properties and could even perform less well than one of the simpler, more widely used alternatives. There are currently no data-based methods available for deciding what value one should place on these tuning parameters hence the primary aim of this research is to develop an objective way of selecting values for the tuning parameters in minimum distance estimators so that the full potential of these estimators might be realised. This new method was initially developed to optimise the performance of the density power divergence estimator, which was proposed by Basu, Harris, Hjort and Jones [3]. The results were very promising so the method was then applied to two other minimum distance estimators and the results compared.
EKONOMICZNA EFEKTYWNOŚĆ UPRAWY BURAKA CUKROWEGO W WARUNKACH ZRÓŻNICOWANEGO NAWOŻENIA MINERALNEGO I W RÓŻNYCH SYSTEMACH UPRAWY KONSERWUJĄCEJ
Creators: name: Golinowska, Maria
name: Zimny, Lesław
name: Golinowska, Maria
name: Zimny, Lesław
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: costs
subject: efficiency
subject: sugar beet
subject: mineral fertilization
subject: conservation tillage systems

description: The aim of the research was analysis of economic efficiency of sugar beet cultivation in different systems of conservation tillage and two doses of N/ha fertilization. The researches were executed in the Agricultural Experimental Farm „Swojec” in Wrocław in the years 2007-2010. The variant involving winter vetch proved to be the most efficient economically, while the variant with rye, was the least efficient out of the ten variants of tillage systems subjected to the assessment.
title: Flächeninanspruchnahme der österreichischen Abfallwirtschaft
Creators: name: Scholz, Alexander
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Abfallwirtschaft
subject: Flächeninanspruchnahme
subject: Waste management system
subject: land use

description: Diese Arbeit befasst sich mit der Entwicklung der Flächeninanspruchnahme der österreichischen Abfallwirtschaft. Das Hauptthema ist die Entwicklung der Abfallwirtschaft sowie die Entwicklung der Flächeninanspruchnahme der Abfallwirtschaft von 1950 bis 2014. Die Arbeit untersucht das Ziel des Abfallwirtschaftsgesetzes, welches den schonenden Umgang mit der Ressource Fläche anstrebt. Die Forschungsfrage befasst sich damit, wie sich die Flächeninanspruchnahme sowie die Struktur der Abfallwirtschaft über die letzten Jahrzehnte verändert haben. Eine große Herausforderung war es Daten zu finden und diese über die letzten 60 Jahre vergleichbar zu machen. Die Struktur der Abfallwirtschaft sowie der Begriff 'Abfall' haben sich in den letzten Jahrzehnten oft und grundlegend verändert. In den 50iger Jahren gab es den Begriff 'Abfallwirtschaft' gar nicht und der Abfall wurde in sogenannten wilden Deponien abgelagert. Die Struktur der heutigen Abfallwirtschaft hat sich aus dem Umweltbewusstsein der 80er entwickelt. Die Hauptthese ist, dass in den letzten Jahren die Flächeninanspruchnahme der österreichischen Abfallwirtschaft zwar auf Grund der Sanierung und Sicherung von Altlasten zurückgegangen ist, jedoch diese in Zukunft durch die Zunahme an Abfallbehandlungsanlagen, wieder steigen wird.
description: This master thesis is about land consumption of the waste management in Austria. The main topic is the evolution of the waste management and the changes of land consumption between 1950 and 2014. The motivation of the work is that the waste management law from 2002 declares the conservation of the resource land. The main questions are how the land consumption and the structure of the waste industry changed over the last five decades. The biggest challenge was to unify and to gather data from 1950 to 2014. The structure of the waste management and the definition of 'waste' changed frequently and fundamentally during the last decades. During the 50ies there was no waste management and waste was dumped on municipal landfill sites. The waste management, as we know it now, evolved from the environment protection movement of the 80ies. The main thesis of the paper is that during the last years the land consumption of waste treatment facilities decreased but it will increase again. The main reason for the increase is the rehabilitation of abandoned polluted areas in conjunction with the increase of the total amount of waste disposal facilities.
Additional file 3 of Fetal sex and maternal pregnancy outcomes: a systematic review and meta-analysis
Creators: name: Broere-Brown, Zoe A.
name: Adank, Maria C.
name: Benschop, Laura
name: Tielemans, Myrte
name: Muka, Taulant
name: Gonçalves, Romy
name: Bramer, Wichor M.
name: Josje D Schoufour
name: Voortman, Trudy
name: Steegers, Eric A. P.
name: Franco, Oscar H.
name: Schalekamp-Timmermans, Sarah
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3. PRISMA checklist.
Spatial coherence singularities and incoherent vortex solitons
Creators: name: Motzek, Kristian
name: Kivshar, Yuri S.
name: Shih, Ming-Feng
name: Swartzlander, Grover A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study spatially localized optical vortices created by self-trapping of partially incoherent light with a phase dislocation in a biased photorefractive crystal. In a contrast to the decay of coherent self-trapped vortex beams due to the azimuthal instability, the incoherent vortices are stabilized when the spatial incoherence of light exceeds a certain threshold. We analyze the spatial coherence properties of the incoherent optical vortices and reveal the existence of ring-like singularities in the spatial coherence function of a vortex field that can characterize the stable propagation of vortices through nonlinear media.
description: 10 pages, 5 figures
PORÓWNANIE OPŁACALNOŚCI PRODUKCJI RZEPAKU OZIMEGO W GOSPODARSTWIE ROLNYM W TRZECH KOLEJNYCH LATACH UPRAWY
Creators: name: Gugała, Marek
name: Zarzecka, Krystyna
name: Krasnodębska, Ewa
name: Koselak, Jakub
name: Gugała, Marek
name: Zarzecka, Krystyna
name: Krasnodębska, Ewa
name: Koselak, Jakub
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: profitability
subject: rape
subject: yield
subject: growing years

description: The aim of this study was to conduct the economic analysis of winter rape production and presentation of the profitability of production in three consecutive growing seasons. The data came from the farm specializing in the production of winter rape. The yield of rapeseed in 2011 reached the level 2.10 t/ha in 2012 amounted to 4.00 t/ha, while in 2013, 4.11 t/ha. Revenue in the analyzed the periods was 5478.80 and 8878.30, and 7057.70 PLN per 1 ha, and a large variation in income was dictated price obtained in the different years of research per unit of production. The largest share in the structure of the costs incurred related to costs fertilizers (41.0 and 47.0%).
Spin-Hall conductivity of a disordered 2D electron gas with Dresselhaus spin-orbit interaction
Creators: name: Mal'shukov, A. G.
name: Chao, K. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-Hall conductivity of a disordered 2D electron gas has been calculated for an arbitrary spin-orbit interaction. We have found that in the diffusive regime of electron transport, in accordance with previous calculations, the dc spin-Hall conductivity of a homogeneous system turns to zero due to impurity scattering when the spin-orbit coupling is represented only by the Rashba interaction. However, when the Dresselhaus interaction is taken into account, the spin-Hall current is not zero. We also considered the spin-Hall currents induced by an inhomogeneous electric field. It is shown that a time dependent electric charge induces a vortex of spin-Hall currents.
description: 5 pages, figure added
GENERATION Z: PROBLEMS AND FEATURES. THE USE OF MODERN PEDAGOGICAL METHODS
Creators: name: Kuznetsova, M.P.
Publisher: name: Вестник науки
Year: 2024
Subjects: human resource management
human intelligence
training
generation
generation Z
career expectations

description: This chapter presents the theory of generations and analyzes the characteristics of each generation, particularly generation Z. The author considers the problem of communication, describes the peculiarities and cites the most common problems in communication of generation Z. The conclusion emphasizes possible solutions to these problems.
Investigation into Length Scale Dominance in Critical Black Hole Formation
Creators: name: Kelson-Packer, Cole
name: Belz, John
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The critical formation of low-mass black holes is a historical cornerstone of numerical General Relativity, with important implications in cosmology for censorship conjectures and the production of primordial black holes (PBHs). Concurrent with the surge in black hole observational physics in recent years has been an increased interest in these subjects. Critical formation is often suggested as a mechanism for PBH production, but it is possible that the existence of different types of critical processes potentially accompanying more realistic scenarios may affect this conclusion more than has been considered thus far. This paper numerically investigates, as a toy model, the interplay of multiple near-critical fields in the collapse of spherically symmetric scalar fields. It is found that a combination of type~I and type~II near-critical fields results in a kind of competition between their respective critical evolutions and propose. A heuristic explanation for this phenomenon is given employing ideas from the theory of dynamical systems.
description: 8 pages, 10 figures
UŻYTKOWANIE POWIERZCHNI ZIEMI W POLSCE W ASPEKCIE STABILNOŚCI EKOLOGICZNEJ
Creators: name: Harasim, Adam
name: Harasim, Adam
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: land area
subject: land use
subject: ecological stability

description: The objective of the study was to assess the environmental stability of land surface in Poland over time and space. The study showed that the level of ecological stability of land was low, approximating long-term average, and showed no variation over the years. The province of Lubuskie with its extensive forest areas is standing out for its high level of stability. The environmental status of land surface is shaped mainly by such land use forms as arable lands, forests and permanent grasslands. Land use pattern in Poland is undergoing two major kinds of change: lands sown to annual crops, lands under forest and urban and built-up areas are increasing whereas grasslands, lands under perennial crops and idle lands are decreasing in area.
Additional file 4 of Fetal sex and maternal pregnancy outcomes: a systematic review and meta-analysis
Creators: name: Broere-Brown, Zoe A.
name: Adank, Maria C.
name: Benschop, Laura
name: Tielemans, Myrte
name: Muka, Taulant
name: Gonçalves, Romy
name: Bramer, Wichor M.
name: Josje D Schoufour
name: Voortman, Trudy
name: Steegers, Eric A. P.
name: Franco, Oscar H.
name: Schalekamp-Timmermans, Sarah
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 4. MOOSE checklist.
In situ observation of the generation and annealing kinetics of E' centers induced in amorphous SiO2 by 4.7eV laser irradiation
Creators: name: Messina, F.
name: Cannas, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The kinetics of E' centers induced in silica by 4.7eV laser irradiation was investigated observing in situ their optical absorption band at 5.8 eV. After exposure the defects decay due to reaction with diffusing molecular hydrogen of radiolytic origin. Hydrogen-related annealing is active also during exposure and competes with the photo-induced generation of the centers until a saturation is reached. The concentrations of E' and H2 at saturation are proportional, so indicating that the UV-induced generation processes of the two species are correlated. These results are consistent with a model in which E' and hydrogen are generated from a common precursor Si-H.
description: 13 pages, 3 figures, 1 table
Strictly non-proportional geodesically equivalent metrics have $h_\text{top}(g)=0$
Creators: name: Kruglikov, Boris S.
name: Matveev, Vladimir S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B40 37J35 37A35 37M25 70H06 37J30 53B10 53A

description: Suppose the Riemannian metrics $g$ and $\bar g$ on a closed connected manifold $M^n$ are geodesically equivalent and strictly non-proportional at least at one point. Then the topological entropy of the geodesic flow of $g$ vanishes.
description: This is a slightly extended version of the paper submitted to ETDS. 16 pages, one .eps figure
Additional file 1 of Profiling Italian cat and dog owners’ perceptions of pet food quality traits
Creators: name: Vinassa, Marica
name: Vergnano, Diana
name: Valle, Emanuela
name: Giribaldi, Marzia
name: Nery, Joana
name: Prola, Liviana
name: Bergero, Domenico
name: Schiavone, Achille
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Questionnaire: how is pet food quality assessed? In this file the questionnaire used during the survey is reported, translated in English language.
The star-forming main sequence and the contribution of dust-obscured star formation since $z\sim4$ from the FUV+IR luminosity functions
Creators: name: Rodriguez-Puebla, Aldo
name: Avila-Reese, Vladimir
name: Cano-Diaz, Mariana
name: Faber, S. M.
name: Primack, Joel R.
name: Franco, Jose
name: Aretxaga, I.
name: Santiago-Mayoral, Eder
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: An analytical approach is proposed to study the evolution of the star-forming galaxy (SFG) main sequence (MS) and the fraction of dust-obscured SF up to $z\sim4$. Far-ultraviolet (FUV) and infrared (IR) star formation rates, SFRs, are described as conditional probability functions of $M_{\ast}$. We convolve them with the galaxy stellar mass function (GSMF) of SFGs to derive the FUV and IR LFs. The 2 SF modes formalism is used to describe starburst galaxies. By fitting observed FUV and IR LFs, the parametrization of SFR$_{\rm FUV}-M_{\ast}$ and SFR$_{\rm IR}-M_{\ast}$ are constrained. Our derived SFR$_{\rm FUV+IR}-M_{\ast}$ reproduces the evolution of the MS as compared to other observational inferences. At any redshift, we find that the sSFR$_{\rm FUV+IR}-M_{\ast}$ relation for MS SFGs approaches to a power law at the high-mass end. At lower masses, it bends and eventually the slope sign changes from negative to positive at very low masses. At $z\sim0$, this change of sign is at $M_{\ast}\sim5\times10^{8}{\rm M}_{\odot}$ close to dust-obscured SF regime, $M_{\ast}\sim6\times10^{8}{\rm M}_{\odot}$. The slope sign change is related to the knee of the FUV LF. Our derived dust-obscured fractions agree with previous determinations at $0\leq z\leq2.5$. Dust-obscured fractions depend strongly on mass with almost no dependence with redshift at $z\gtrsim1.2$. At $z\lesssim0.75$ high-mass galaxies become more "transparent" compared to their high redshift counterparts. On the opposite, low- and intermediate-mass galaxies have become more obscured by dust. The joint evolution of the GSMF and the FUV and IR LFs is a promising approach to study mass growth and dust formation/destruction mechanisms.
description: Submitted to ApJ, 20 pages, 12 figures. Comments are welcome. This is an improved version after the first Referee report. Results remained unchanged
title: Wo ist das (gute) alte Leben hin? Doing Family und Vereinbarkeitsmanagement in der Corona-Krise
Creators: name: Buschmeyer, Anna
name: Ahrens, Regina
name: Zerle-Elsäßer, Claudia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Arbeitsteilung
subject: Care
subject: Corona
subject: doing family
subject: Eltern
subject: Vereinbarkeit
subject: ddc:303

description: Um der Frage nachzugehen, wie während der Corona-Pandemie Erwerbs- und Sorgearbeit vereinbart werden, analysiert dieser Beitrag die Situation von Eltern mit Kindern unter zwölf Jahren aus dem Blickwinkel des Doing Family und mit Rückgriff auf Hartmut Rosas Thesen zur Be- und Entschleunigung. Anhand von Daten des DJI-Survey AID:A 2019, dessen ergänzender Corona-Befragung 2020 und 20 qualitativen Interviews mit Eltern zeigen wir Bewältigungsstrategien von Vereinbarkeitskonflikten während der Corona-Pandemie auf. Die quantitativen und auch die qualitativen Daten zeigen, dass sich die Rahmenbedingungen für das Balancemanagement durch Corona drastisch verändert haben. Besonders intrapersonale Vereinbarkeitskonflikte haben sich durch die Corona-Krise sowohl in beide Richtungen (Work-Family und Family-Work) als auch bei beiden Geschlechtern verstärkt. Viele dieser Veränderungen resultieren in einer Verfestigung der bisherigen Arbeitsteilung zwischen den Eltern. Es zeigen sich außerdem Ambivalenzen: Während sich die Situation für viele Eltern verschärft hat, hat sie sich für andere eher entspannt, teilweise zeigen sich beide Tendenzen innerhalb derselben Erzählung. Diese Ambivalenzen sind mit Dimensionen von Geschlecht verwoben.
Piecewise model with two overlapped stages for the structure formation and hardening upon severe plastic deformation
Creators: name: Talantsev, E. F.
name: Degtyarev, M. V.
name: Chashchukhina, T. I.
name: Voronova, L. M.
name: Pilyugin, V. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The evolution of metals micro/nano-structure upon severe plastic deformation (SPD) is still far to be theoretically explained, while experimental datasets are persistently growing. Major problem associated with understanding of SPD is a synergetic effect of several competing processes which alter material structure. In this paper we propose a model to reveal, as free-fitting parameters, strain breakpoints where predominantly one mechanism determines the micro/nano-structure in SPD materials from material hardness vs true strain experimental data. The model is applied to analyse SPD data for pure polycrystalline iron and two distinctive strain breakpoints have been revealed.
description: 11 pages, 4 figures
Phase transitions in a decentralized graph-based approach to human language
Creators: name: Vera, Javier
name: Urbina, Felipe
name: Palma, Wenceslao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computation and Language (cs.CL)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Zipf's law establishes a scaling behavior for word-frequencies in large text corpora. The appearance of Zipfian properties in human language has been previously explained as an optimization problem for the interests of speakers and hearers. On the other hand, human-like vocabularies can be viewed as bipartite graphs. The aim here is double: within a bipartite-graph approach to human vocabularies, to propose a decentralized language game model for the formation of Zipfian properties. To do this, we define a language game, in which a population of artificial agents is involved in idealized linguistic interactions. Numerical simulations show the appearance of a phase transition from an initially disordered state to three possible phases for language formation. Our results suggest that Zipfian properties in language seem to arise partly from decentralized linguistic interactions between agents endowed with bipartite word-meaning mappings.
The graviton vacuum as a distributional state in kinematic Loop Quantum Gravity
Creators: name: Varadarajan, Madhavan
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The quantum behaviour of weak gravitational fields admits an adequate, albeit approximate, description by those graviton states in which the expectation values and fluctuations of the linearised gravitational field are small. Such states must approximate corresponding states in full quantum gravity. We analyse the nature of this approximation for the graviton vacuum state in the context of kinematical Loop Quantum Gravity (LQG) wherein the constraints are ignored. We identify the graviton vacuum state with kinematically non-normalizable, distributional states in LQG by demanding that relations between linearised operator actions on the former are mirrored by those of their non-linear counterparts on the latter. We define a semi- norm on the space of kinematical distributions and show that the identification is approximate upto distributions which are small in this semi-norm. We argue that our candidate states are annihilated by the linearised constraints (expressed as operators in the full theory) to leading order in the parameter characterising the approximation. This suggests the possibility, in a scheme such as ours, of solving the full constraints order by order in this parameter. The main drawback of our considerations is that they depend on certain auxilliary constructions which, though mathematically well defined, do not arise from physical insight. Our work is an attempt to implement an earlier proposal of Iwasaki and Rovelli.
description: 44 pages, no figures
STAN I PERSPEKTYWY ROZWOJU ENERGETYKI ODNAWIALNEJ W POLSCE I NA UKRAINIE
Creators: name: Izdebski, Waldemar
name: Makarchuk, Oksana
name: Skudlarski, Jacek
name: Trypolska, Galyna
name: Zając, Stanisław
name: Zayka, Svetlana
name: Izdebski, Waldemar
name: Makarchuk, Oksana
name: Skudlarski, Jacek
name: Trypolska, Galyna
name: Zając, Stanisław
name: Zayka, Svetlana
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: energy
subject: renewable energy
subject: Poland
subject: Ukraine

description: The aim of the study was to compare the status and prospects of the development of renewable energy in Poland and Ukraine. The source of the data used in this study were available reports, yearbooks and statistical studies Polish and Ukrainian, and literature on the issue of renewable energy development in these countries. Both in Poland and Ukraine, there is an increase in the production of energy from renewable sources. The share of renewables in the energy balance of Ukraine is much lower than in Poland. A significant problem for the development of renewable energy in Ukraine is the current political and economic situation.
Holographic subdiffusion
Creators: name: Ganesan, Koushik
name: Lucas, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We initiate a study of finite temperature transport in gapless and strongly coupled quantum theories with charge and dipole conservation using gauge-gravity duality. In a model with non-dynamical gravity, the bulk fields of our model include a suitable mixed-rank tensor which encodes the boundary multipole symmetry. We describe how such a theory can arise at low energies in a theory with a covariant bulk action. Studying response functions at zero density, we find that charge relaxes via a fourth-order subdiffusion equation, consistent with a recently-developed field-theoretic framework.
description: 14+5 pages, 1+0 figure; v2: added references. v3: added discussions
Computational Investigation of Copper Phosphides as Conversion Anodes for Lithium-Ion Batteries
Creators: name: Harper, Angela F.
name: Evans, Matthew L.
name: Morris, Andrew J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using first principles structure searching with density-functional theory (DFT) we identify a novel $Fm\bar{3}m$ phase of Cu$_2$P and two low-lying metastable structures, an $I\bar{4}3d$--Cu$_3$P phase, and a $Cm$--Cu$_3$P$_{11}$ phase. The computed pair distribution function of the novel $Cm$--Cu$_3$P$_{11}$ phase shows its structural similarity to the experimentally identified $Cm$--Cu$_2$P$_7$ phase. The relative stability of all Cu--P phases at finite temperatures is determined by calculating the Gibbs free energy using vibrational effects from phonon modes at 0 K. From this, a finite-temperature convex hull is created, on which $Fm\bar{3}m$--Cu$_2$P is dynamically stable and the Cu$_{3-x}$P ($x < 1$) defect phase $Cmc2_1$--Cu$_8$P$_3$ remains metastable (within 20 meV/atom of the convex hull) across a temperature range from 0 K to 600 K. Both CuP$_2$ and Cu$_3$P exhibit theoretical gravimetric capacities higher than contemporary graphite anodes for Li-ion batteries; the predicted Cu$_2$P phase has a theoretical gravimetric capacity of 508 mAh/g as a Li-ion battery electrode, greater than both Cu$_3$P (363 mAh/g) and graphite (372 mAh/g). Cu$_2$P is also predicted to be both non-magnetic and metallic, which should promote efficient electron transfer in the anode. Cu$_2$P's favorable properties as a metallic, high-capacity material suggest its use as a future conversion anode for Li-ion batteries; with a volume expansion of 99% during complete cycling, Cu$_2$P anodes could be more durable than other conversion anodes in the Cu--P system with volume expansions greater than 150%.
description: For associated data see https://github.com/harpaf13/data.copper-phosphides and https://doi.org/10.17863/CAM.52272
ZRÓŻNICOWANIE CEN KWIATÓW CIĘTYCH NA RYNKU DETALICZNYM WARSZAWY
Creators: name: Jabłońska, Lilianna
name: Uścińska, Agnieszka
name: Sobczak, Wioleta
name: Jabłońska, Lilianna
name: Uścińska, Agnieszka
name: Sobczak, Wioleta
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: retail prieces
subject: cut flowers

description: The annual and monthly variation in retail prices of 10 cut flowers in Warsaw florists have been analyzed. It has been shown significant price differentials between species, florists and periods of the year. The highest prices were recorded in February and March, especially on Valentine’s Day, Women’s Day and Mother’s Day. A price level dependence on the location and florist trade potential has been found. The highest prices were recorded in florists located in shopping centers, with a very neat interior and a wide range of plants. These florists were also characterized by smaller seasonal variations.
title: Από το Απίθανο στο Πιθανό: Η εξέλιξη των μουσείων στην ψηφιακή εποχή
title: From impossible to possible : The evolution of museums in the digital age
Creators: name: Μανου Στυλιανη
name: Καλαμποκη-Παπαχρηστου Βικτωρια
Publisher: name: Technical University of Crete
Year: 2024

description: Ο εικονικός χώρος ενσωματώνεται ολοένα και περισσότερο στην καθημερινή μας ζωή, δημιουργώντας νέες ανάγκες και ευκαιρίες στον τομέα της αρχιτεκτονικής. Με την εισαγωγή εικονικών στοιχείων στο σχεδιασμό, οι αρχιτέκτονες αποκτούν τη δυνατότητα να πειραματιστούν και να δημιουργήσουν χώρους που υπερβαίνουν τα παραδοσιακά πρότυπα, συμπεριλαμβανομένων των υβριδικών χώρων. Η αρχιτεκτονική συνεργάζεται με τεχνολογικούς κλάδους, υιοθετώντας νέες σχεδιαστικές προσεγγίσεις, όπως αυτή της Εμπειρίας του Χρήστη. Τα μουσεία ακολουθούν, επίσης μια πιο εμπειρική προσέγγιση, αντιπροσωπεύοντας το φυσικό αποτέλεσμα της ιστορικής τους εξέλιξης, επηρεαζόμενα κυρίως από τη Νέα Μουσειολογία. Μεταμορφώνονται σε χώρους εμπειριών όπου οι επισκέπτες δεν είναι απλώς παρατηρητές αλλά ενεργοί συμμετέχοντες. Οι μουσειολόγοι πλέον εστιάζουν όχι μόνο στην παρουσίαση των εκθεμάτων αλλά και στην αφήγηση των ιστοριών που αυτά φέρουν, δίνοντας έμφαση στο νόημα και τη σημασία που μεταφέρουν. Αυτή η εστίαση στην άυλη πλευρά των αντικειμένων επιτρέπει τη χρήση εικονικών στοιχείων στα μουσεία. Βλέπουμε ότι η αξία των αντικειμένων δεν περιορίζεται στην υλική τους υπόσταση και ότι τα ψηφιακά αντικείμενα είναι κατάλληλα για να μεταφέρουν το νόημα του εκθέματος. Οι ψηφιακές εκθέσεις αποτελούν το επόμενο βήμα στην εξέλιξη της μουσειολογίας, ενσωματώνοντας την εμπειρία του χρήστη στον σχεδιασμό των χώρων και προσφέροντας νέες οπτικές στον επισκέπτη.
Graduate recitals
Creators: name: Liu, Hsiao-Feng Alice
Publisher: name: University of British Columbia
Year: 2010

description: The thesis for the Master of Music degree in Orchestral Instruments consists of two full-length recitals, or the equivalent, with emphasis on solo works, but also including representative chamber works. My two full-length recitals were performed on May 1st, 2005 and April 2nd , 2006.
Void Formation and Roughening in Slow Fracture
Creators: name: Afek, Itai
name: Bouchbinder, Eran
name: Katzav, Eytan
name: Mathiesen, Joachim
name: Procaccia, Itamar
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Slow crack propagation in ductile, and in certain brittle materials, appears to take place via the nucleation of voids ahead of the crack tip due to plastic yields, followed by the coalescence of these voids. Post mortem analysis of the resulting fracture surfaces of ductile and brittle materials on the $μ$m-mm and the nm scales respectively, reveals self-affine cracks with anomalous scaling exponent $ζ\approx 0.8$ in 3-dimensions and $ζ\approx 0.65$ in 2-dimensions. In this paper we present an analytic theory based on the method of iterated conformal maps aimed at modelling the void formation and the fracture growth, culminating in estimates of the roughening exponents in 2-dimensions. In the simplest realization of the model we allow one void ahead of the crack, and address the robustness of the roughening exponent. Next we develop the theory further, to include two voids ahead of the crack. This development necessitates generalizing the method of iterated conformal maps to include doubly connected regions (maps from the annulus rather than the unit circle). While mathematically and numerically feasible, we find that the employment of the stress field as computed from elasticity theory becomes questionable when more than one void is explicitly inserted into the material. Thus further progress in this line of research calls for improved treatment of the plastic dynamics.
description: 15 pages, 20 figures
Paternalisme et choix alimentaires
Creators: name: Marette, Stephan
name: Marette, Stephan
Publisher: name: Unknown
Year: 2016
Subjects: Consumer/Household Economics
Food Consumption/Nutrition/Food Safety

description: Face aux problèmes de maladies chroniques et de malnutrition, la puissance publique peut intervenir pour tenter d’améliorer la nutrition et la santé des personnes. Ces interventions peuvent être qualifiées de paternalistes, quand elles sont motivées par l’idée que le décideur public sait mieux que les consommateurs ce qui est bon pour eux, et qu’il dispose d’une légitimité pour les guider, voire les contraindre. Le paternalisme s’observe également au niveau des consommateurs, lorsqu’ils font des choix pour d’autres personnes, par exemple lorsque des parents décident de l’alimentation de leurs enfants. Les analyses des politiques publiques sous-estiment souvent les effets du paternalisme. Mesurer le paternalisme dans un cadre expérimental consiste à comparer, pour un participant, les décisions prises pour lui-même et celles prises pour une autre personne, qu’il s’agisse d’une personne anonyme ou d’un membre de sa famille. Les résultats de deux expériences montrent qu’un nombre significatif de participants ont fait des choix alimentaires pour eux-mêmes, différents des choix qu’ils ont réalisés pour une autre personne.
Environmanetal regulations and innovations versus competitiveness
Creators: name: Kulawik, Jacek
name: Kulawik, Jacek
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Porter hypothesis
subject: Hicks induced innovation
subject: competitiveness
subject: environmental policy
subject: environmental regulations.

description: Environmental regulations influence the prosperity and sustainability of organisations and households. According to the traditional belief, they constitute an additional, undesired cost which lowers competitiveness of economic operators and the entire sectors, although they might be socially desirable. The issue can be, however, approached from a different perspective, namely from the viewpoint of the induced innovation theory – authored by J.R. Hicks in 1932, later developed and presented in 1991 by M. Porter, then on known as Porter hypothesis. It states that a company, affected by more stringent environmental regulations, is often forced to use simple reserves and to implement fundamental technological, organisational and product innovations, which can, all in all, offset the higher costs of adhering to the more severe environmental policy. Consequently, its competitiveness does not have to drop, sometimes it can even grow. Porter hypothesis already has strong theoretical grounds, but empirical verification of its accuracy is still an open issue. In general, today it is assumed that it is completely true (it checks out in the so-called strong version), only in some, rather restrictive conditions. This conclusion – as evidenced in the paper – is also applicable to the food sector, including agriculture.
Geographical delineation of sugar market basing on Eliznga-Hogarty method
Creators: name: Pietrzak, Michał
name: Roman, Monika
name: Mucha, Marcin
name: Pietrzak, Michał
name: Roman, Monika
name: Mucha, Marcin
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Research Methods/ Statistical Methods
subject: sugar market
subject: Elzinga−Hogarty method
subject: market delineation
subject: LIFO test
subject: LOFI test

description: The aim of the paper was to define the geographical scope of the sugar market using the Elzinga−Hogarty method. For practical use of this method the authors made three assumptions: 1) sugar market was studied integrally, independently from type of sugar, its origin and kind of customer, 2) the European Union market treated en bloc was the starting point for the analysis, 3) LOFI and LIFO tests were established at the level of 90% (“strong” market). The authors used secondary data on sugar production, consumption, imports and exports on country and the EU level gathered for 2013 by the International Sugar Organization. Sugar market was defined by “adding” to each other subsequent national markets characterised by the highest trade exchange. The markets were added until the requirements for LOFI and LIFO tests were met at the level of 90%. The results of the research allow the authors to define the sugar market as a global market which consists of the EU area and 30 other countries in the world. Such market has production of 114 million tonnes, consumption of 110 million tonnes and small share of import and export at the level of 10.7 million tonnes and 11.4 million tonnes, respectively. The geographical definition of the sugar market determined in the paper is much broader than the ones used by the European Union and the Polish Office of Competition and Consumer Protection. The controversy about the geographical scope of the sugar market suggests the need for further research in the area.
A Proposal for a Modified Moller-Plesset Perturbation Theory
Creators: name: Cabo, Alejandro
name: Claro, Francisco
name: Menendez-Proupin, Eduardo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A modified version of the Moller-Plesset approach for obtaining the correlation energy associated to a Hartree-Fock ground state is proposed. The method is tested in a model of interacting fermions that allows for an exact solution. Using up to third order terms improved results are obtained, even more accurate in the limit of loosely bound particles. This result suggests the possible convenience of the scheme for the study of chemical bound problems.
description: 10 pages, 1 figure
Droughts versus the situation of the polish farms of natural persons
Creators: name: Józwiak, Wojciech
name: Zieliński, Marek
name: Ziętara, Wojciech
name: Józwiak, Wojciech
name: Zieliński, Marek
name: Ziętara, Wojciech
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Production Economics
subject: farms
subject: agricultural drought
subject: climate
subject: soil quality
subject: income
subject: replacement of fixed assets.

description: The paper presents the situation of farms located in areas exposed to droughts, emphasising the situation of those having poor quality soils. The research covered 296 farms keeping uninterrupted accounts under the Polish FADN over the period of 2006-2013, in the area of 96 gminas especially affected by droughts, which are situated in the following voivodeships: Wielkopolskie, Lubuskie, Kujawsko-Pomorskie, Łódzkie and Dolnośląskie. As a point of reference the research used 4,294 farms located in the area of other gminas countrywide. The analysis demonstrated that farms situated in the region frequently affected by droughts had worse production and economic results and a factor intensifying the effects of droughts was poor soil quality. Other factors determining the case were only preliminarily indicated, given small number of the analysed sample.
On Multiobjective Evolution Model
Creators: name: Ahmed, E.
name: Elettreby, M. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Self-Organized Criticality (SOC) phenomena could have a significant effect on the dynamics of ecosystems. The Bak-Sneppen (BS) model is a simple and robust model of biological evolution that exhibits punctuated equilibrium behavior. Here we will introduce random version of BS model. Also we generalize the single objective BS model to a multiobjective one.
description: 6 pages, 5 figures
Formation of the Large Nearby Galaxies
Creators: name: Peebles, P. J. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of the nearby large galaxies that can be examined in particularly close detail suggest that many have small stellar luminosity fractions in bulges and haloes. Simulations of galaxy formation tend to produce considerably larger fractions of the star particles in model bulges, stellar haloes, and more generally in orbits seriously different from circular. The situation might be improved by a prescription for non-Gaussian initial conditions on the scale of galaxies.
description: additions and revisions inspired by comments received. v3 has more additions and revisions