cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Luminous Blue Variable candidates in M31
Creators: name: Sarkisyan, A.
name: Sholukhova, O.
name: Fabrika, S.
name: Bizyaev, D.
name: Valeev, A.
name: Vinokurov, A.
name: Solovyeva, Y.
name: Kostenkov, A.
name: Malanushenko, V.
name: Nedialkov, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study five Luminous Blue Variable (LBV) candidates in the Andromeda galaxy and one more (MN112) in the Milky Way. We obtain the same-epoch near-infrared (NIR) and optical spectra on the 3.5-meter telescope at the Apache Point Observatory and on the 6-meter telescope of the SAO RAS. The candidates show typical LBV features in their spectra: broad and strong hydrogen lines, HeI, FeII, and [FeII] lines. We estimate the temperatures, reddening, radii and luminosities of the stars using their spectral energy distributions. Bolometric luminosities of the candidates are similar to those of known LBV stars in the Andromeda galaxy. One candidate, J004341.84+411112.0, demonstrates photometric variability (about 0.27 mag in V band), which allows us to classify it as a LBV. The star J004415.04+420156.2 shows characteristics typical for B[e]-supergiants. The star J004411.36+413257.2 is classified as FeII star. We confirm that the stars J004621.08+421308.2 and J004507.65+413740.8 are warm hypergiants. We for the first time obtain NIR spectrum of the Galactic LBV candidate MN112. We use both optical and NIR spectra of MN112 for comparison with similar stars in M31 and notice identical spectra and the same temperature in the J004341.84+411112.0. This allows us to confirm that MN112 is a LBV, which should show its brightness variability in longer time span observations.
description: 12 pages, 4 figures
Structural aspects of the metal-insulator transition in BaVS3
Creators: name: Fagot, S.
name: Foury-Leylekian, P.
name: Ravy, S.
name: Pouget, J. P.
name: Anne, M.
name: Popov, G.
name: Lobanov, M. V.
name: Greenblatt, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A sequence of structural transitions occurring in the quasi-one-dimensional (1D) 3d1 system BaVS3 at low temperature was investigated by high resolution synchrotron X-ray diffraction. The orthorhombic Cmc21 structure of the intermediate-temperature (70K
Integrált információs rendszerek a mezőgazdasági vállalkozásokban
Creators: name: Zorog, Zoltan
name: Csomos, Tamas
name: Zorog, Zoltan
name: Csomos, Tamas
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Teaching/Communication/Extension/Profession
subject: információ-menedzsment
subject: vállalati információs rendszerek
subject: agrárinformatika
subject: information management
subject: corporate information systems
subject: agricultural informatics.

description: A vizsgált, közel háromszáz mezőgazdasági tevékenységet folytató vállalkozás elenyésző arányban (rendszerenként a megkérdezettek 1–8% közötti arányában) ismer integrált vállalati információs rendszert. A megkérdezett vállalkozások nem használnak belső információkat integráló rendszert, amelynek segítségével nyomon követhetnék a vállalkozás működését, belső folyamatait. Ennek okaként egyrészt megemlíthető, hogy a rendszerek megvásárlása – a pénzügyi helyzetükből kifolyólag – meglehetősen nagy terhet jelent a vállalkozások számára. Részben ez is lehet az oka annak, hogy az általunk megkérdezett termelők kevés információval rendelkeznek a rendszerek által nyújtott lehetőségekről, ezáltal tovább gátolva azok bevezetésének esélyét, előnyeinek hasznosítását. Jóllehet egyfajta előrelépés tapasztalható a mezőgazdasági vállalkozások körében a különböző számítástechnikai alkalmazások térinformatikai, távérzékelési szolgáltatásaiban, a vezeték nélküli technológiák használatában, viszont ezek úgynevezett szigetszerű megoldásoknak tekintendők, és nem segítik az integrált rendszerekhez való közeledést, amelyek lehetőséget nyújthatnának egyes ágazati folyamatok modellezésére. -------------------------------------------------- Very few of the almost three hundred examined agricultural enterprises (between 1% and 8% of the respondents in different sectors) are familiar with integrated information systems. The surveyed enterprises do not use internal information integrating systems that would help them to closely follow the operations of the enterprise and its internal processes. The reason for this on the one hand is that the purchase of such systems – due to the financial situation – presents a very heavy burden for agricultural enterprises. This may partially be the reason why the interviewed producers are not aware of the possibilities offered by such systems, which further hinders the chances of introducing these systems and utilizing their advantages. Although there are certain visible advances in agricultural enterprises using different IT applications, spatial informatics and remote sensing services, and wireless technology, these represent so called isolated solutions and do not support the acceptance of integrated systems which could present possibilities for modelling sectoral processes.
Túl sok agrárszakembert képzünk?
Creators: name: Lakner, Zoltan
name: Lakner, Zoltan
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Teaching/Communication/Extension/Profession
subject: agrár-felsőoktatás
subject: OECD
subject: nemzetközi összehasonlítás
subject: higher education
subject: agriculture
subject: comparative analysis

description: Az elmúlt években mind a közbeszédben, mind az oktatáspolitikai stratégia főbb irányait kereső dokumentumokban egyre gyakrabban vetődik fel a túlképzés fogalma. Az agrár-felsőoktatási intézmények sokszor szerepelnek azok között, melyek – a vélelmezők szerint – indokolatlanul sok szakembert bocsátanak ki. A tanulmány a nyugati világ legfejlettebb gazdaságú országait tömörítő Gazdasági Együttműködési és Fejlesztési Szervezet (OECD) adatai alapján vizsgálja a felsőfokú agrárszakember- képzés arányait a nemzetközi összehasonlítás tükrében. A statisztikai adatok elemzésével egyáltalán nem igazolható, hogy hazánkban agrártúlképzés lenne. Az összességében csökkenő, bizonyos intézmények esetében zuhanó beiskolázási keretszámok néhány éven belül súlyos agrárszakember-hiány esélyét vetítik előre. --------------------------------------- In the last decades there is an intense discussion in public and professional sphere on over-production of agricultural specialists. It is generally accepted, that the agricultural faculties are pouring out a high number of young agricultural specialists on the labour market. The study analyses this phenomenon in the light of international comparison, using the official database of the Organisation for Economic Cooperation and Development, calculating the different indices of number of agricultural specialists. It can not be supported the hypothesis, that there is an over-production of agricultural specialists, on the contrary, after some years an increasing shortage of agricultural specialists can be expected.
A korszerű agrárgazdaság alapja a tudomány
Creators: name: Gazdag, Laszlo
name: Gazdag, Laszlo
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Teaching/Communication/Extension/Profession
subject: ökonómiai és ökológiai hatékonyság
subject: technikai fejlődés
subject: versenyképesség
subject: egészséges élelmiszer
subject: állatbarát technológia
subject: tudomány
subject: economical and ecological efficiency
subject: technical development
subject: efficiency
subject: healthy food
subject: animal friendly technology

description: A korszerű agrártermelés lényege, hogy versenyképesen, megfelelő mennyiségben és minőségben állítson elő egészséges élelmiszert, környezetbarát módon. Ezt a komplex feladatot csakis a modern tudomány eredményeit alkalmazó gazdálkodás képes teljesíteni. A múltba révedés, az elavult formákhoz való visszatérés, a haladásellenes logika csakis az ágazat leépüléséhez, nemzetközi térvesztéséhez vezethet, ahogyan ezt sajnos a rendszerváltás utáni magyar tapasztalat is bizonyítja. ------------------------------------------ The essence of modern agriculture are the economical and ecological efficiency, the quality and quantity, the healthy food, and the environment-friendly methodology. This complex mission can be carried out by the modern scientific achievements. The returning to past (archaic), to forms of out of date induces cutting down of the sector.
title: Exact and heuristic approaches for unrelated parallel machine scheduling
Creators: name: Moser, Maximilian
Publisher: name: TU Wien
Year: 2019
Subjects: subject: Parallel Machine Scheduling
subject: MIP
subject: Constraint Programming
subject: Metaheuristics
subject: Parallel Machine Scheduling
subject: MIP
subject: Constraint Programming
subject: Metaheuristics

description: Parallel-Machine-Scheduling-Probleme wurden vielfach in der wissenschaftlichen Literatur untersucht und sind häufig in der Industrie anwendbar. Diese Diplomarbeit beschäftigt sich mit einem praktisch auftretendem Problem, welches als Unrelated Parallel-Machine- Scheduling-Problem mit sequenzabhängigen Umrüstzeiten, Fälligkeitsterminen und Einschränkungen für die Verwendung der Maschinen beschreiben lässt. Das Ziel ist die Minimierung der gesamten Verspätung und Produktionsdauer. Da bereits existierende mathematische Formulierungen nicht direkt auf unser Problem anwendbar sind, erweitern wir verschiedene bestehende Formulierungen für verwandte Probleme und passen sie auf unser Problem an. Des weiteren stellen wir mehrere Varianten von Simulated Annealing vor, welche wir zum Lösen sehr großer Problem-Instanzen verwenden. Als Teil dieser Algorithmen verwenden wir verschiedene Suchnachbarschaften und untersuchen die Verwendung zusätzlicher innovativer Heuristiken zur Auswahl benachbarter Lösungen. Wir verwenden die neu generierten Probleminstanzen zusammen mit bestehenden Instan- zen aus der Literatur, um die vorgestellten mathematischen Modelle und metaheuristi- schen Algorithmen auszuwerten. Die praktischen Resultate zeigen, dass unsere gewählten Methoden in der Lage sind, die Resultate der bisher besten Methoden zu verbessern.
description: Parallel Machine Scheduling problems have been subject of intensive research and have many applications in the manufacturing industry. In this thesis, we study a real-life scheduling problem that can be formulated as an Unrelated Parallel Machine Scheduling Problem with Sequence-Dependent Setup Times, Due Dates, and Machine Eligibility Constraints. The aim is to minimise total tardiness and makespan. As existing formulations from the literature cannot be directly applied to our problem, we extend and adapt different mathematical models for related problems to approach the problem. Furthermore, we propose several variants of Simulated Annealing to solve very large-scale problem instances as they appear in practice. In these algorithms, we utilise several different search neighbourhoods and additionally investigate the use of innovative heuristic neighbourhood move selection strategies. Further, we provide a set of real-life problem instances as well as a random instance generator that we use to generate a large number of instances. Using the novel datasets together with existing instances from the literature, we perform a thorough evaluation of the mathematical models and meta-heuristic algorithms that are studied in this thesis. Experimental results show that our methods are able to improve the results produced with state-of-the-art approaches for a large number of instances.
Estudio del desarrollo histórico de la labor científico educativa de  las Brigadas Técnicas Juveniles en Cuba en el período de 1964  hasta 2021
Creators: name: Carmona, Jeiller
Publisher: name: Zenodo
Year: 2024

description: “Los estudios históricos no constituyen un lujo del conocimiento, son una necesidad para enfrentar el análisis teórico lógico de cualquier fenómeno o proceso que se desee investigar para su transformación”. (Chávez, J. y Pérez L., 2001). La tesis que se presenta tiene como objeto de estudio: el desarrollo histórico de la labor científico educativa y se propone como objetivo realizar una valoración del desarrollo histórico de la labor científico educativa de las BTJ en Cuba en el período de 1964 hasta 2021.En el estudio se aplicaron para el proceso investigativo los métodos teóricos y empíricos propios de la investigación educativa, con énfasis en los de la Historia de la Educación.Para lograr este propósito se parte de ver el hecho histórico como categoría esencial de la historia como ciencia, en el cual se establecen las circunstancias concretas, el lugar y el tiempo en que ocurrió el fenómeno, en el que el investigador comienza por un proceso de análisis y de razonamiento inductivo, para arribar entonces a un momento cualitativamente superior del proceso deductivo, lo que implica la periodización. En la tesis se emplea la periodización como proceder metodológico para revelar los hitos en la labor científico educativa de las BTJ en el período de 1964 hasta 2021. El análisis de las etapas se realiza teniendo en cuenta, en cada momento histórico, las consideraciones económicas, políticas, sociales e ideal educativo; análisis de las conferencias de trabajo de las brigadas; análisis del fundamento legal de los reglamentos establecidos para las brigadas; análisis del pensamiento científico educativo de José Martí, Ernesto Che Guevara y Fidel Castro Ruz sobre la labor científico educativa de las brigadas y la identificación de los enfoques pedagógicos que se manifiestan en labor científico educativa de las brigada
Game theory, maximum entropy, minimum discrepancy and robust Bayesian decision theory
Creators: name: Grunwald, Peter D.
name: Dawid, A. Philip
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62C20 (Primary) 94A17 (Secondary)

description: We describe and develop a close relationship between two problems that have customarily been regarded as distinct: that of maximizing entropy, and that of minimizing worst-case expected loss. Using a formulation grounded in the equilibrium theory of zero-sum games between Decision Maker and Nature, these two problems are shown to be dual to each other, the solution to each providing that to the other. Although Topsœdescribed this connection for the Shannon entropy over 20 years ago, it does not appear to be widely known even in that important special case. We here generalize this theory to apply to arbitrary decision problems and loss functions. We indicate how an appropriate generalized definition of entropy can be associated with such a problem, and we show that, subject to certain regularity conditions, the above-mentioned duality continues to apply in this extended context. This simultaneously provides a possible rationale for maximizing entropy and a tool for finding robust Bayes acts. We also describe the essential identity between the problem of maximizing entropy and that of minimizing a related discrepancy or divergence between distributions. This leads to an extension, to arbitrary discrepancies, of a well-known minimax theorem for the case of Kullback-Leibler divergence (the ``redundancy-capacity theorem'' of information theory). For the important case of families of distributions having certain mean values specified, we develop simple sufficient conditions and methods for identifying the desired solutions.
description: Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Statistics (http://www.imstat.org/aos/) at http://dx.doi.org/10.1214/009053604000000553
A világ kacsahústermelése és -piaca
Creators: name: Kozak, Janos
name: Kozak, Janos
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: Livestock Production/Industries
subject: kacsahústermelés
subject: export-import
subject: piac
subject: fogyasztás
subject: duck meat production
subject: trade
subject: consumption

description: A világ kacsahústermelése 1984–2009 között 4,75-szörösére növekedett, ezzel jelentősen túlszárnyalta az össz-baromfihústermelés ütemét. Ez a kacsatartás és a kacsatermékek kedvező biológiai tulajdonságainak és gazdasági előnyeinek, valamint a fogyasztói szokások megváltozásának tudható be. A kacsatartás jelentősen hozzájárulhat az emberiség állati fehérjével való ellátásához és az élelmiszer-biztonsághoz. A hagyományos kacsatartási rendszerek helyett az intenzív tartásmód terjed, s a hasznosítási irányok változásával a kacsák genotípusa és a kacsatermékek választéka strukturálisan átrendeződik. A termék-előállítás és a fogyasztás szezonalitása megszűnőben van, a piaci verseny pedig egyre élesebbé válik Magyarország számára is. A fogyasztói elvárások miatt a környezetvédelmi és állatjóléti elvárások alapvetőek. ------------------------------------- Between 1984 and 2009, global duck meat production increased by nearly fivefold (4.75) and outperformed the rate of total poultry meat production. The grown was attributable to the recognition of the economic advantages of duck keeping, the favourable biological properties of duck products and the changes in the consumers’ preference. Duck farming can considerable contribute to the supply of human population with protein and to the improvement of food security. Extensive duck-keeping systems have been gradually replaced by intensive ones in more and more countries worldwide. Changes in type of utilisation entail also changes in duck genotypes and the structural rearrangement of the assortment of duck products. Seasonality of production and consumption of duck products is declining, whilst market competition is getting more and more intensive also for Hungary. Nowadays, assertion of environmental and animal welfare issues is absolute indispensable to meet consumer demand.
Hoof pain changes how dairy cattle distribute their body weight
Creators: name: Neveux, Sophie
Publisher: name: University of British Columbia
Year: 2009

description: Behavioural changes associated with lameness in dairy cattle are often subtle, making lameness detection difficult. Objective and reliable methods of assessing weight distribution among the four limbs may be useful in the early detection of hoof injuries. To determine how cows redistribute their body weight among the four limbs in response to discomfort, I used a standing force platform with uncomfortable surfaces under either a single hoof (Exp. 1, n = 13 cows) or two hooves (Exp. 2, n = 15 cows). In control sessions, when all four hooves were on comfortable surfaces, cows in both experiments kept more weight on the front hooves than on the back hooves. In Experiment 1, when one of the back hooves was on an uncomfortable surface, cows removed weight from this hoof and redistributed the majority of this weight onto the contralateral back hoof but did not change the distribution of weight among the front hooves. When the uncomfortable surface was under a front hoof, cows placed less weight on that hoof and placed more weight on the contralateral front hoof and the ipsilateral back hoof. The variation in weight placed by the cows on both contralateral hooves increased when one of the hooves was on the uncomfortable surface. Cows in Experiment 2 placed more weight on the back hooves when both front hooves were on uncomfortable surfaces, though there was no change in weight distribution when both back hooves were on uncomfortable surfaces. This study demonstrates that dairy cows can alter their weight distribution to accommodate discomfort and that they adopt different standing behaviours depending on the location of discomfort. These results will help in the interpretation of data from force platforms for on-farm detection of lameness in dairy cattle.
The Validity of the Local Density Approximation for Smooth Short Range Interaction Potentials
Creators: name: Mietzsch, Nicco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the full quantum theory, the energy of a many-body quantum system with a given one-body density is described by the Levy-Lieb functional. It is exact, but very complicated to compute. For practical computations, it is useful to introduce the Local Density Approximation which is based on the local energy of constant densities. The aim of this paper is to make a rigorous connection between the Levy-Lieb functional theory and the Local Density Approximation. Our justification is valid for fermionic systems with a general class of smooth short range interaction potentials, in the regime of slowly varying densities. We follow a general approach developed by Lewin, Lieb and Seiringer for Coulomb potential, but avoid using any special properties of the potential including the scaling property and screening effects for the localization of the energy.
Deformed Two-Photon Squeezed States in Noncommutative Space
Creators: name: Zhang, Jian-Zu
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent studies on non-perturbation aspects of noncommutative quantum mechanics explored a new type of boson commutation relations at the deformed level, described by deformed annihilation-creation operators in noncommutative space. This correlated boson commutator correlates different degrees of freedom, and shows an essential influence on dynamics. This paper devotes to the development of formalism of deformed two-photon squeezed states in noncommutative space. General representations of deformed annihilation-creation operators and the consistency condition for the electromagnetic wave with a single mode of frequency in NC space are obtained. Two-photon squeezed states are studied. One finds that variances of the dimensionless hermitian quadratures of the annihilation operator in one degree of freedom include variances in the other degree of freedom. Such correlations show the new feature of spatial noncommutativity and allow a deeper understanding of the correlated boson commutator.
description: 11 pages. Physics Letters B (accepted)
Additional file 3 of Heat-not-burn tobacco, electronic cigarettes, and combustible cigarette use among Japanese adolescents: a nationwide population survey 2017
Creators: name: Kuwabara, Yuki
name: Kinjo, Aya
name: Fujii, Maya
name: Imamoto, Aya
name: Yoneatsu Osaki
name: Jike, Maki
name: Otsuka, Yuichiro
name: Itani, Osamu
name: Kaneita, Yoshitaka
name: Minobe, Ruriko
name: Maezato, Hitoshi
name: Higuchi, Susumu
name: Yoshimoto, Hisashi
name: Kanda, Hideyuki
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3. Patterns of ever use of tobacco-related products by demographics, lifestyle, and future education intention.
Merre tart a világ mezőgazdasága? Változó prioritások a világ agrártermelésében
Creators: name: Csaki, Csaba
name: Csaki, Csaba
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Political Economy
subject: globális agrárfejlődés
subject: tendenciák
subject: kihívások
subject: global agricultural development
subject: trends
subject: challenges

description: A globális agrárpiacok számos változáson mentek keresztül az utóbbi évtizedekben. Napjaink legfontosabb tendenciái a növekvő globális agrártermelés, a növekvő jövedelem és fogyasztás és a bővülő nemzetközi agrárkereskedelem, amelyek mögött azonban jelentős regionális és országok közötti különbségek rejlenek. Napjaink legfőbb kihívásai a növekvő ármozgások, a globális élelmiszer-ellátás biztonsága, a növekvő éhezés és tartós vidéki szegénység, a szélesedő vidék-város jövedelemkülönbségek, valamint a klímaváltozás. A fenti kihívásoknak való megfeleléshez fokozottabb nemzetközi együttműködés, a mezőgazdaság és az ahhoz kapcsolódó intézményi infrastruktúra fejlesztése, vidéki munkahelyteremtés, az agrárkutatások kiemelt támogatása, integrált területi és vidékfejlesztési stratégiák kidolgozása és a klímaváltozásra való globális felkészülés szükséges. ------------------------------------------------- Global agricultural markets have undergone several changes during recent decades. The most important trends at present are the growing global agricultural production, the increasing income and consumption, and the expanding international agricultural trade with significant regional and country differences. Currently, the biggest challenges are increasing price volatility, global food security, increasing starvation and permanent rural poverty together with the increasing urban-rural income gap and climate change. In order to meet these challenges, increased international cooperation, agricultural and the associated institutional development, rural job creation, support of agricultural research, integrated territorial and rural development strategies as well as global preparation for climate change are needed.
Entropic destruction of heavy quarkonium in heavy quark cloud
Creators: name: Zhang, Zi-qiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Previous research has shown that the peak of the quarkonium entropy at the deconfinement transition would be related to the entropic force which induces the melting of quarkonium. In this article, we study the effect of backreaction on the entropic force in a strongly coupled plasma of adjoint matter. The backreaction covered here comes from the presence of static heavy quarks evenly distributed over such a plasma. It is found that the inclusion of backreaction increases the entropic force thus enhancing the quarkonium dissociation, in accord with the findings of the imaginary potential.
description: 7 pages, 2 figures, Phys. Rev. D (to be published)
Low-energy excitations of a linearly Jahn-Teller coupled orbital quintet
Creators: name: Manini, Nicola
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The low-energy spectra of the single-mode h x (G+H) linear Jahn-Teller model is studied by means of exact diagonalization. Both eigenenergies and photoemission spectral intensities are computed. These spectra are useful to understand the vibronic dynamics of icosahedral clusters with partly filled orbital quintet molecular shells, for example C60 positive ions.
description: 14 pages revtex
Measuring the masses of magnetic white dwarfs: A NuSTAR Legacy Survey
Creators: name: Shaw, A. W.
name: Heinke, C. O.
name: Mukai, K.
name: Tomsick, J. A.
name: Doroshenko, V.
name: Suleimanov, V. F.
name: Buisson, D. J. K.
name: Gandhi, P.
name: Grefenstette, B. W.
name: Hare, J.
name: Jiang, J.
name: Ludlam, R. M.
name: Rana, V.
name: Sivakoff, G. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The hard X-ray spectrum of magnetic cataclysmic variables can be modelled to provide a measurement of white dwarf mass. This method is complementary to radial velocity measurements, which depend on the (typically rather uncertain) binary inclination. Here we present results from a Legacy Survey of 19 magnetic cataclysmic variables with NuSTAR. We fit accretion column models to their 20-78 keV spectra and derive the white dwarf masses, finding a weighted average $\bar{M}_{\rm WD}=0.77\pm0.02$ $M_{\odot}$, with a standard deviation $σ=0.10$ $M_{\odot}$, when we include the masses derived from previous NuSTAR observations of seven additional magnetic cataclysmic variables. We find that the mass distribution of accreting magnetic white dwarfs is consistent with that of white dwarfs in non-magnetic cataclysmic variables. Both peak at a higher mass than the distributions of isolated white dwarfs and post-common-envelope binaries. We speculate as to why this might be the case, proposing that consequential angular momentum losses may play a role in accreting magnetic white dwarfs and/or that our knowledge of how the white dwarf mass changes over accretion-nova cycles may also be incomplete.
description: 14 pages. 5 figures in main paper, 1 figure in appendix. Accepted for publication in MNRAS
Additional figures and tables from Microsporidian parasite impairs colony fitness in bumblebees
Creators: name: Camenzind, Domenic Walter
name: Bruckner, Selina
name: Neumann, Peter
name: Van Oystaeyen, Annette
name: Strobl, Verena
name: Williams, Geoffrey
name: Straub, Lars
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 320499
subject: Immunology not elsewhere classified

description: Additional figures and tables based on the analysed data
Asymptotics of the Colored Jones Polynomial and the A-Polynomial
Creators: name: Hikami, Kazuhiro
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We reveal a relationship between the colored Jones polynomial and the A-polynomial for twist knots. We demonstrate that an asymptotics of the $N$-colored Jones polynomial in large $N$ gives the potential function, and that the A-polynomial can be computed. Also discussed is a case of torus knots.
description: 16 pages, 4 figures
Gondolatok egy üzemszabályozási törvény indokoltságáról
Creators: name: Kurucz, Mihaly
name: Kurucz, Mihaly
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: globális agrárfejlődés
subject: tendenciák
subject: kihívások
subject: agricultural farm as production and legal unit
subject: market of living and real instruments
subject: quotas and subsidies
subject: agro-producer

description: Az agrárüzemek elemeinek, alapításának és forgalmának önálló szabályozása nemcsak a magántermelői és családi gazdaságok személyi és vagyoni viszonyainak szabályozását teszi lehetővé, de elkerülhetetlenül előtérbe kerül a jogi személyek által hasznosított magántulajdonú földek, élő és holt felszerelés forgalmi helyzeteinek szabályozásában, sőt felhasználható a jogi személyek által alapított üzemek vagyoni viszonyai szabályozásában is. Az üzemtörvény objektív, egyértelmű és világos képet nyújt a mezőgazdasági termelők technikai-gazdasági állapotáról, kapacitásáról, az agrár hardware-ről. Ezt a rendszert az üzemi eszközök: termőföld, gépek, berendezések, állatállomány, támogatások, pénzügyi kedvezmények forgalmába történő állami beavatkozás esetén a szabályozás alapjaként és a beavatkozások viszonyítási pontjaként lehet alkalmazni. Az üzem maga is a forgalom tárgyává válik mind az élők között (átruházások, biztosítékul adás), mind halál esetére. ----------------------------------------------------------- The distinct regulation of the market for arable land, separated from the other elements of agricultural farms such as machinery, equipment, animal stock, human labour, knowledge, and management seems to be a fundamentally false approach from the point of view of agricultural law. Beside the elements of farms such as plough land, buildings and structures, and equipment, the farm itself can be a single unit of agricultural assets. This integrated kind of regulation of farm assets in the market provides us with an objective and clear basis for identifying the holdings of agricultural legal entities. Hungarian and European law tolerate the limitations of the free movement of assets, if the limitation is determined and urged by public interest and the items of limitation are suitable for reaching the objectives. There is a clear demand amongst Hungarian farmers for more agricultural land. The size or the number of farms is from a strictly legal point of view determined by the sizes of the arable plots. In this respect the preferences are determined by the rural development policy interests of different countries. The foundation, sale, purchase and mortgage of agricultural farms such as legal units makes it possible for the legislator to regulate the different personal and assets relationships of agricultural farms in a clear and objective way. Moreover this integrated type of regulation can be the basis of treating and handling of different market subjects applying for public fiscal subsidies and entitlements.
Additional file 2 of The introduction of risk stratified screening into the NHS breast screening Programme: views from British-Pakistani women
Creators: name: Woof, Victoria G.
name: Ruane, Helen
name: French, David P.
name: Ulph, Fiona
name: Qureshi, Nadeem
name: Nasaim Khan
name: Evans, D. Gareth
name: Donnelly, Louise S.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Additional file 2.
title: A bicultural study on the intention to use unmanned stores
Creators: name: Mousavi Nejad, Seyed Shahabodin
Year: 2023

description: Die Integration von KI-Technologie im Einzelhandel, wie bei Amazon Go, hat zu erhöhten Investitionen in Geschäfte ohne Personal (Unmanned Stores) geführt. Diese wissenschaftliche Arbeit untersuchte die Nutzungsabsicht von Amazon-Go in Südkorea und Österreich unter Berücksichtigung von wahrgenommenen Benutzerfreundlichkeit und fünf nationalen kulturellen Dimensionen. Diese Arbeit ergab signifikante Unterschiede in der Nutzungsabsicht von Amazon-Go, der wahrgenommenen Benutzerfreundlichkeit und fünf nationalen kulturellen Dimensionen zwischen österreichischen und koreanischen Gruppen. Die Nutzungsabsicht von Amazon-Go wurde sowohl in österreichischen als auch in koreanischen Gruppen durch Unsicherheitsvermeidung und Lang- und Kurzfristorientierung negativ und durch Zeitorientierung und entfernte Kommunikation positiv beeinflusst. Darüber hinaus war der Einfluss von der entfernten Kommunikation auf die Nutzungsabsicht zwischen den beiden Gruppen deutlich unterschiedlich.
description: Integrating AI technology in retail, like Amazon Go, has increased investments in unmanned stores. This study explored the intention to use Amazon Go in South Korea and Austria, considering perceived ease of use and five national cultural dimensions. The study found significant differences between Austrian and Korean groups' intention to use Amazon Go, perceived ease of use, and five national cultural dimensions. The intention to use unmanned stores was negatively affected by uncertainty avoidance and long and short term orientation and positively affected by time orientation and disconnected communication within Austrian and Korean groups. Moreover, the impact of disconnected communication on the intention to use significantly differed between the two groups.
Principal fibrations from noncommutative spheres
Creators: name: Landi, Giovanni
name: van Suijlekom, Walter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We construct noncommutative principal fibrations S_θ^7 \to S_θ^4 which are deformations of the classical SU(2) Hopf fibration over the four sphere. We realize the noncommutative vector bundles associated to the irreducible representations of SU(2) as modules of coequivariant maps and construct corresponding projections. The index of Dirac operators with coefficients in the associated bundles is computed with the Connes-Moscovici local index formula. The algebra inclusion $A(S_θ^4) \into A(S_θ^7)$ is an example of a not trivial quantum principal bundle.
description: 23 pages. Latex. v3: Additional minor corrections, version published in CMP
X-ray spectral and timing characteristics of the stars in the young open cluster IC 2391
Creators: name: Marino, A.
name: Micela, G.
name: Peres, G.
name: Pillitteri, I.
name: Sciortino, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present X-ray spectral and timing analysis of members of the young open cluster IC 2391 observed with the XMM-Newton observatory. We detected 99 X-ray sources by analysing the summed data obtained from MOS1, MOS2 and pn detectors of the EPIC camera; 24 of them are members, or probable members, of the cluster. Stars of all spectral types have been detected, from the early-types to the late-M dwarfs. Despite the capability of the instrument to recognize up to 3 thermal components, the X-ray spectra of the G, K and M members of the cluster are well described with two thermal components (at kT$_1 \sim$ 0.3-0.5 keV and kT$_2 \sim$ 1.0-1.2 keV respectively) while the X-ray spectra of F members require only a softer 1-T model. The Kolmogorov-Smirnov test applied to the X-ray photon time series shows that approximately 46% of the members of IC 2391 are variable with a confidence level $>$99%. The comparison of our data with those obtained with ROSAT/PSPC, nine years earlier, and ROSAT/HRI, seven years earlier, shows that there is no evidence of significant variability on these time scales, suggesting that long-term variations due to activity cycles similar to that on the Sun are not common, if present at all, among these young stars.
description: Astronomy & Astrophysics, in press
Optical spectral properties of radio loud quasars along the main sequence
Creators: name: del Olmo, A.
name: Marziani, P.
name: Ganci, V.
name: D'Onofrio, M.
name: Bon, E.
name: Bon, N.
name: Negrete, A. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze the optical properties of Radio-Loud quasars along the Main Sequence (MS) of quasars. A sample of 355 quasars selected on the basis of radio detection was obtained by cross-matching the FIRST survey at 20cm and the SDSS DR12 spectroscopic survey. We consider the nature of powerful emission at the high-FeII end of the MS. At variance with the classical radio-loud sources which are located in the Population B domain of the MS optical plane, we found evidence indicating a thermal origin of the radio emission of the highly accreting quasars of Population A.
description: 3 pages, 2 figures; Proceedings paper of the IAU symposium 356 "Nuclear Activity in Galaxies Across Cosmic Time" (Ethiopia) accepted to be published under the Cambridge University Press, eds. M. Povic, P. Marziani, J. Masegosa, H. Netzer, S. H. Negu, and S. B. Tessema
Ultrathin water layers on viruses
Creators: name: Bittner, Alexander
Publisher: name: Zenodo
Year: 2023

description: Abstract:For many viruses, transmission requires "survival" in dry conditions, specifically forthe airborne route [1,2,3]. Simple plant viruses survive complete dehydration andexhibit an ultrathin water layer in ambient conditions [3,4]. For the complex envelopedviruses, the lipid bilayers must persist. How is this possible?
A Bayesian Approach to the Simulation Argument
Creators: name: Kipping, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: The Simulation Argument posed by Bostrom (2003) suggests that we may be living inside a sophisticated computer simulation. If post-human civilizations eventually have both the capability and desire to generate such Bostrom-like simulations, then the number of simulated realities would greatly exceed the one base reality, ostensibly indicating a high probability that we do not live in said base reality. In this work, it is argued that since the hypothesis that such simulations are technically possible remains unproven, then statistical calculations need to consider not just the number of state spaces, but the intrinsic model uncertainty. This is achievable through a Bayesian treatment of the problem, which is presented here. Using Bayesian model averaging, it is shown that the probability that we are sims is in fact less than 50%, tending towards that value in the limit of an infinite number of simulations. This result is broadly indifferent as to whether one conditions upon the fact that humanity has not yet birthed such simulations, or ignore it. As argued elsewhere, it is found that if humanity does start producing such simulations, then this would radically shift the odds and make it very probable that we are in fact sims.
description: Published in Universe. This version is formatted using the AAS 6.2 template
Depolarization channels with zero-bandwidth noises
Creators: name: Dragan, Andrzej
name: Wódkiewicz, Krzysztow
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A simple model describing depolarization channels with zero-bandwidth environment is presented and exactly solved. The environment is modelled by Lorentzian, telegraphic and Gaussian zero-bandwidth noises. Such channels can go beyond the standard Markov dynamics and therefore can illustrate the influence of memory effects of the noisy communication channel on the transmitted information. To quantify the disturbance of quantum states the entanglement fidelity between arbitrary input and output states is investigated.
description: 15 pages, 3 figures
Spatially explicit bio-economic modelling for the Baltic Sea: Do the benefits of nutrient abatement outweigh the costs?
Creators: name: Hyytiainen, Kari
name: Ahlvik, Lassi
name: Ahtiainen, Heini
name: Artell, Janne
name: Dahlbo, Kim
name: Huhtala, Anni
name: Hyytiainen, Kari
name: Ahlvik, Lassi
name: Ahtiainen, Heini
name: Artell, Janne
name: Dahlbo, Kim
name: Huhtala, Anni
Publisher: name: Unknown
Year: 2013
Subjects: subject: Environmental Economics and Policy
subject: cost-effectiveness
subject: environmental valuation
subject: eutrophication
subject: integrated assessment modelling
subject: nitrogen
subject: optimization
subject: phosphorus

description: This paper develops and applies a spatially explicit bioeconomic model to study trans-boundary nutrient pollution of the Baltic Sea. We combine catchment, marine and economic models covering the entire Baltic Sea region to weigh the costs of nutrient abatement and the benefits of improved water quality and solve for the socially optimal level of water protection. The overall benefits of the Baltic Sea Action Plan, the present convention on nutrient abatement, clearly outweigh the costs. Nevertheless, the total cost could be almost halved if the mix of measures and the regional targets were planned in a spatially cost-effective manner and if the consequent reductions of nitrogen and phosphorus, the two nutrients causing eutrophication, were better balanced. Policy optimizations, however, suggest that the socially optimal level of nutrient abatement is somewhat lower than the more ambitious level envisaged by the convention. The welfare gains from cost sharing that makes the socially optimal level of nutrient abatement worthwhile for all littoral countries would be 100 million euros annually.
The first known Chinese calendar : a reconstruction by the synchronic evidential approach
Creators: name: Liu, Xueshun
Publisher: name: University of British Columbia
Year: 2009

description: The first known Chinese calendar refers to the calendar embodied in the Yin oracle-bone inscriptions (OBI). Since 1925, the two-layered evidential method has been the standard approach to interpreting them. This method combines primary inscriptional evidence with secondary materials, resulting in inconclusiveness and inaccuracy in previous studies. By adopting the synchronic evidential approach, the present dissertation aims at accurately reconstructing the system by which the Yin divided time into fixed periods. Chapter 1 deals with background issues: it justifies the assertion that the Yin calendar was the first known Chinese calendar, presents inscriptional evidence indicating the existence of a prescriptive Yin calendar, proposes absolute dates for this calendar and justifies the adoption of the synchronic evidential approach. Chapter 2 focuses on time divisions in the Yin day. The two criteria for determining a time division in the OBI are defined as: 1) a word's usage as a time division in early Chinese texts, and 2) suitableness of this usage in inscriptional contexts. The order of the twelve time divisions shows that "su" is the first division of the Yin day. "Su" is thus the start of the Yin day. Chapter 3 analyzes the lunation in the Yin calendar. Inscriptional evidence confirms that the Yin month is either 30 or 2 9 days long. There is no proof of a long Yin month of 31 days or longer, or for a short one of 25 days. Long and short Yin months occur alternately. The Yin employed both year-end intercalation and in-year intercalation. By late periods, in-year intercalation replaced year-end intercalation. Chapter 4 addresses issues concerning the Yin year. A normal Yin year consists of 12 months, a leap year 13 months. The designation for the Yin year is "si". Reconstructions show the commencement of the Yin year is the second month before the month containing the winter solstice. Chapter 5 takes issue with a problematic attitude in the field. It is inappropriate to deny conclusions drawn from inscriptions. Rather, a researcher should give priority to inscriptional evidence over all other secondary materials. It is time to replace the two-layered evidential method with the synchronic evidential approach.
Flat and safe under the graphene sheet
Creators: name: Berger, Claire
name: de Heer, Walt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Large-scale atomically thin metals can be stabilized through confinement epitaxy at graphene / SiC interface, which exhibit a gradient bonding type and are air stable, providing a compelling platform for quantum and optoelectronic technologies.
The distance to the Leo I dwarf spheroidal galaxy from the Red Giant Branch Tip
Creators: name: Bellazzini, M.
name: Gennari, N.
name: Ferraro, F. R.
name: Sollima, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present V and I photometry of a 9.4 arcmin X 9.4 arcmin field centered on the dwarf spheroidal galaxy Leo I. The I magnitude of the tip of the Red Giant Branch is robustly estimated from two different datasets (I^{TRGB}=17.97 +0.05/-0.03). From this estimate, adopting [M/H]=-1.2 from the comparison of RGB stars with Galactic templates, we obtain a distance modulus (m-M)_0=22.02 +/- 0.13, corresponding to a distance D=254 +16/-19 Kpc.
description: 6 pages, 5 figures, Fig. 1 and 2 provided in low resolution version. Latex. Accepted for publication by MNRAS
Additional file 2 of Heat-not-burn tobacco, electronic cigarettes, and combustible cigarette use among Japanese adolescents: a nationwide population survey 2017
Creators: name: Kuwabara, Yuki
name: Kinjo, Aya
name: Fujii, Maya
name: Imamoto, Aya
name: Yoneatsu Osaki
name: Jike, Maki
name: Otsuka, Yuichiro
name: Itani, Osamu
name: Kaneita, Yoshitaka
name: Minobe, Ruriko
name: Maezato, Hitoshi
name: Higuchi, Susumu
name: Yoshimoto, Hisashi
name: Kanda, Hideyuki
Publisher: name: figshare
Year: 2020
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Junior high (grades 7–9) and high school (grades 10–12) students’ age-adjusted combined smoking prevalence rates by gender.