cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
WER GEHT NOCH AN DIE THEKE? ERGEBNISSE EINER VERBRAUCHERSTUDIE ZU SB-FLEISCH
Creators: name: Schulze, Birgit
name: Spiller, Achim
name: Schulze, Birgit
name: Spiller, Achim
Publisher: name: Unknown
Year: 2007
Subjects: subject: Consumer/Household Economics
subject: Discountereffekt
subject: Kaufverhalten
subject: Regressionsanalyse
subject: Zielgruppen
subject: Discount store effect
subject: Buying behaviour
subject: Regression analysis
subject: Target groups

description: The German meat market is facing considerable changes. Along with the boom of case-ready and discount stores, butchers and smaller retailers loose market shares, and private labels become widely accepted. The consumers' preferences are often neglected by these trends. This contribution discusses the German case-ready trend on the basis of an extensive literature review and a consumer survey. A target group of high-income consumers with high preference for meat counters is identified. Consumers who currently buy case-ready meat are acting rather due to price advantages than for reasons of technical advantages such as longer storage life. International examples show that in such a situation it is up to the retailers, if meat counters can survive. Der deutsche Fleischmarkt befindet sich in einer Umbruchphase. Mit dem Siegeszug von SB und Discountware verlieren Fleischerfachgeschäfte und kleinere Handelsgeschäfte an Relevanz, Handelsmarken setzen sich durch. Weitgehend unbeachtet bleiben dabei die tatsächlichen Verbraucherpräferenzen. Dieser Beitrag diskutiert den SB-Trend im deutschen Fleischmarkt auf Basis einer umfangreichen Literaturanalyse und einer Verbraucherbefragung. Es wird eine einkommensstarke Zielgruppe mit beträchtlicher Präferenz für hochwertige Thekenware identifiziert. Verbraucher, die derzeit SB-Fleisch kaufen, tun dies weniger aufgrund der produktionstechnischen Vorteile (z. B. längere Haltbarkeit), als aufgrund von Preisvorteilen. Internationale Beispiele zeigen, dass es in einer solchen Situation vom Anbieter-Verhalten abhängt, ob Bedienungsware langfristig Marktanteile verteidigen kann.
Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at $\boldsymbol{\sqrt{\textit s}}=13$ TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at $\sqrt{s} =13$ TeV by the ALICE Collaboration. The yields of particle pairs at short-($Δη$ $\sim$ 0) and long-range ($1.6 < |Δη| < 1.8$) in pseudorapidity are extracted on the near-side ($Δφ$ $\sim$ 0). They are reported as a function of transverse momentum ($p_{\mathrm T}$) in the range $1
description: 24 pages, 7 captioned figures, 1 table, authors from page 19, published version, figures at http://alice-publications.web.cern.ch/node/6759
EFFIZIENZ UND RENTABILITÄT VON BIOGASANLAGEN
Creators: name: Odening, Martin
name: Filler, Gunther
name: Odening, Martin
name: Filler, Gunther
Publisher: name: Unknown
Year: 2007
Subjects: Resource /Energy Economics and Policy

description: Die Verbreitung von Technologien zur Biogaserzeugung hängt maßgeblich von deren einzelbetrieblicher Wirtschaftlichkeit ab. Der vorliegende Beitrag bestimmt die technische und die ökonomische Effizienz sowie die Rentabilität von Biogasanlagen auf der Basis empirischer Daten, die aus einer Befragung des KTBL hervorgehen. Die Effizienzmessung erfolgt mittels Data Envelopment Analyse (DEA). Es zeigt sich, dass die Effizienz der untersuchten Anlagen eine große Variabilität aufweist. Dies deutet darauf hin, dass die Produktionstechnik nicht in allen Betrieben voll beherrscht wird. Entscheidend für die Effizienz von Biogasanlagen ist weniger deren Größe als vielmehr eine gute Auslastung. Mit Blick auf die Rentabilität stellen die Kosten für die Bereitstellung der Gärsubstrate eine Schlüsselgröße dar. Darüber hinaus wird deutlich, dass die Novellierung des EEG in 2004 und die damit verbundene Erhöhung der Stromvergütung die Rentabilität von Biogasanlagen deutlich erhöht hat. Während zuvor Biogas nur unter günstigen Bedingungen wirtschaftlich zu erzeugen war, lassen sich nunmehr unter Ausnutzung sämtlicher Preiszuschläge sehr hohe Renditen erzielen.
DER AGRARSTRUKTURWANDEL IN DEN ALPEN 1980 -2000: EIN VERGLEICH HARMONISIERTER AGRARSTRUKTURINDIKATOREN AUF GEMEINDEEBENE IM ALPENKONVENTIONSGEBIET
Creators: name: Streifeneder, Thomas
name: Hoffmann, Christian
name: Ruffini, Flavio V.
name: Streifeneder, Thomas
name: Hoffmann, Christian
name: Ruffini, Flavio V.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agrarstrukturwandel
subject: Alpenkonvention
subject: Ländliche Entwicklung
subject: Driving forces
subject: Agro-structural change
subject: Alpine Convention
subject: Rural development

description: In the whole area of the Alps, the agro-structural change between 1980-2000 shows a significant decline of the farms (-40%). Alpine Regions with relatively stable situations (Austria, Switzerland) stand against those ones with major structural changes (Italy, Slovenia). The causes for these processes are manifold and concern cultural, agro-political,and economic as well as intra-farm factors. This study analyses form and dimension of the agro-structural change. Contrary to expectations, the Alpine regions did not always register a more significant structural change than non-alpine regions. Besides clear contrasts on the national and regional level, the analyses show that there are also parallels in the development of the agrarian patterns. In the Alps there are areas with moderate Germany/Austria/Switzerland), dynamic (Italy/Slovenia) and uncorrelated (France)developments (1980-2000) of farms and the utilized agricultural area. Der Agrarstrukturwandel 1980-2000 zeigt im gesamten Alpenraum einen starken Rückgang (-40 %) der Betriebe. Alpenräume mit stabilen Verhältnissen (AT, CH), stehen Alpenräumen mit einem starken Strukturwandel (IT, SI) gegenüber. Hierfür sind vielfältige kulturelle, agrarpolitische, ökonomische und innerbetriebliche Faktoren verantwortlich. Die Untersuchung analysiert Art und Ausmaß der Veränderungen der betrieblichen Strukturen. Der Alpenraum hat entgegen den Erwartungen nicht immer einen stärkeren Strukturwandel erfahren als die Nicht-Alpenräume. Neben den deutlichen Gegensätzen auf nationaler und regionaler Ebene, gehen aus den Analysen auch Parallelen bei der Entwicklung der Agrarstrukturen hervor. Es existieren Alpenräume mit einer moderaten (DE/AT/CH), dynamischen (IT/SI) und unkorrelierten (FR) Entwicklung (1980-2000) der Betriebe und Nutzflächen.
Energy Distribution of Black Plane Solutions
Creators: name: Halpern, Paul
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the Einstein energy-momentum complex to calculate the energy distribution of static plane-symmetric solutions of the Einstein-Maxwell equations in 3+1 dimensions with asymptotic anti-de Sitter behavior. This solution is expressed in terms of three parameters: the mass, electric charge and cosmological constant. We compare the energy distribution to that of the Reissner-Nordstrom-anti-de Sitter solution, pointing to qualitative differences between the models. Finally, we examine these results within the context of the Cooperstock hypothesis.
description: 9 pages
Fingerprint region of the formic acid dimer: variational vibrational computations in curvilinear coordinates
Creators: name: Daria, Alberto Martin Santa
name: Avila, Gustavo
name: Matyus, Edit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Curvilinear kinetic energy models are developed for variational nuclear motion computations including the inter- and the low-frequency intra-molecular degrees of freedom of the formic acid dimer. The coupling of the inter- and intra-molecular modes is studied by solving the vibrational Schrödinger equation for a series of vibrational models, from two up to ten active vibrational degrees of freedom by selecting various combinations of active modes and constrained coordinate values. Vibrational states, nodal assignment, and infrared vibrational intensity information is computed using the the full-dimensional potential energy surface (PES) and electric dipole moment surface developed by Qu and Bowman [Phys. Chem. Chem. Phys. 18, 24835 (2016); J. Chem. Phys. 148, 241713 (2018)]. Good results are obtained for several fundamental and combination bands in comparison with with jet-cooled vibrational spectroscopy experiments, but the description of the $ν_8$ and $ν_9$ fundamental vibrations, which are close in energy and have the same symmetry, appears to be problematic. For further progress in comparison with experiment, the potential energy surface, and in particular, its multi-dimensional couplings representation, requires further improvement.
Protests in Latin America in the middle of ongoing global systemic crises
Creators: name: Jimenez  Jimenez, Magda Catalina
name: Diaz Pabon, Fabio Andres
Publisher: name: Zenodo
Year: 2023
Subjects: protest
conflict
inequality
crises
democracy

description: The last years have observed a series of mounting challenges that have deepened tensions in

the region, as illustrated by the increase in the number of protests in the region. The increase

in tensions relate to the intersection of worsening of living conditions for millions of citizens- a

consequence of the pandemic, the ripple effects of Russian aggression towards Ukraine, and

the concerns about a coming global recession. These tensions will bring challenges to political

systems across the region, manifested in the occurrence of different types of protests, and the

risk of declining support for democracy in Latin America, should governments fail to respond

to the demands of their citizens.
Cosmic evolution of the galaxy mass and luminosity functions by morphological type from multi-wavelength data in the CDF-South
Creators: name: Franceschini, A.
name: Rodighiero, G.
name: Cassata, P.
name: Berta, S.
name: Vaccari, M.
name: Nonino, M.
name: Vanzella, E.
name: Hatziminaoglou, E.
name: Antichi, J.
name: Cristiani, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We constrain the evolution of the galaxy mass and luminosity functions from the analysis of (public) multi-wavelength data in the Chandra Deep Field South (CDFS) area, obtained from the GOODS and other projects, and including very deep high-resolution imaging by HST/ACS. Our reference catalogue of faint high-redshift galaxies, which we have thoroughly tested for completeness and reliability, comes from a deep (S(3.6micron)>1 microJy) image by IRAC on the Spitzer Observatory. These imaging data in the field are complemented with extensive optical spectroscopy by the ESO VLT/FORS2 and VIMOS spectrographs, while deep K-band VLT/ISAAC imaging is also used to derive further complementary statistical constraints and to assist the source identification and SED analysis. We have selected a highly reliable IRAC 3.6micron sub-sample of 1478 galaxies with S(3.6)>10microJy, 47% of which have spectroscopic redshift, while for the remaining objects both COMBO-17 and Hyperz are used to estimate the photometric redshift. This very extensive dataset is exploited to assess evolutionary effects in the galaxy luminosity and stellar mass functions, while luminosity/density evolution is further constrained with the number counts and redshift distributions. The deep ACS imaging allows us to differentiate these evolutionary paths by morphological type, which our simulations show to be reliable at least up to z=1.5 for the two main early- (E/S0) and late-type (Sp/Irr) classes. These data, as well as our direct estimate of the stellar mass function above M=10^(10)M_sun for the spheroidal subclass, consistently evidence a progressive dearth of such objects to occur starting at z=0.7, paralleled by an increase in luminosity. (abridged)
description: paper accepted for publication in A&A
Properly stratified algebras and tilting
Creators: name: Frisk, Anders
name: Mazorchuk, Volodymyr
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16G10; 16E10

description: We study the properties of tilting modules in the context of properly stratified algebras. In particular, we answer the question when the Ringel dual of a properly stratified algebra is properly stratified itself, and show that the class of properly stratified algebras for which the characteristic tilting and cotilting modules coincide is closed under taking the Ringel dual. Studying stratified algebras, whose Ringel dual is properly stratified, we discover a new Ringel-type duality for such algebras, which we call the two-step duality. This duality arises from the existence of a new (generalized) tilting module for stratified algebras with properly stratified Ringel dual. We show that this new tilting module has a lot of interesting properties, for instance, its projective dimension equals the projectively defined finitistic dimension of the original algebra, it guarantees that the category of modules of finite projective dimension is contravariantly finite, and, finally, it allows one to compute the finitistic dimension of the original algebra in terms of the projective dimension of the characteristic tilting module.
description: A revised version of the preprint 2003:31, Department of Mathematics, Uppsala University
FARMING IN THE EASTERN AMAZON-POOR BUT ALLOCATIVELY EFFICIENT
Creators: name: Sauer, Johannes
name: Mendoza-Escalante, Arisbe
name: Sauer, Johannes
name: Mendoza-Escalante, Arisbe
Publisher: name: Unknown
Year: 2007
Subjects: subject: Farm Management
subject: Efficiency
subject: Joint Production
subject: Small Scale Farming
subject: Schultz Hypothesis

description: This research empirically investigates the well known 'poor-but-efficient' hypothesis formulated by Schultz (1964) assuming that small scale farmers in developing countries are reasonably efficient in allocating their scarce resources by responding positively to price incentives. Deviating from Schultz it is assumed here that scale effects explain a considerable proportion of small scale farmers' relative efficiency. The theoretical underpinnings of the scale efficiency concept are briefly reviewed before a normalized generalized Leontief profit function is modeled by using its output supply and input demand system to capture the joint production of cassava flour and maize by a sample of small scale farmers in the Bragantina region of the Eastern Amazon, Brazil. The discussion on theoretical consistency and functional flexibility is considered by imposing convexity on the GL profit framework. The empirical results confirm our revised hypothesis that small farmers in traditional development settings are 'poor-but-allocatively efficient' by clearly suggesting considerable inefficiency with respect to the scale of operations.
Floquet Engineering of Multifold Fermions
Creators: name: Jaiswal, Rimika
name: Narayan, Awadhesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using Floquet theory, we investigate the effect of light on triple fold fermions. We study a low energy model as well as a simplified tight binding model under illumination. We find that the three fold degeneracy remains symmetry protected even after applying light if the original band structure is rotationally symmetric around the degeneracy. Otherwise, light can lift the degeneracy and open up a gap. We further investigate the effect of light on the topological Fermi arcs by means of numerical computations. The changes caused by illumination are reflected in experimentally detectable signatures, such as the anomalous Hall conductivity, which we calculate.
description: Published version
Energy and angular momentum of general 4-dimensional stationary axi-symmetric spacetime in teleparallel geometry
Creators: name: Nashed, Gamal Gergess Lamee
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive an exact general axi-symmetric solution of the coupled gravitational and electromagnetic fields in the tetrad theory of gravitation. The solution is characterized by four parameters $M$ (mass), $Q$ (charge), $a$ (rotation) and $L$ (NUT). We then, calculate the total exterior energy using the energy-momentum complex given by Møller in the framework of Weitzenb$\ddot{o}$ck geometry. We show that the energy contained in a sphere is shared by its interior as well as exterior. We also calculate the components of the spatial momentum to evaluate the angular momentum distribution. We show that the only non-vanishing components of the angular momentum is in the Z direction.
description: Latex. Will appear in IJMPA
Holographic scalar and vector exchange in OTOCs and pole-skipping phenomena
Creators: name: Kim, Keun-Young
name: Lee, Kyung-Sun
name: Nishida, Mitsuhiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study scalar and vector exchange terms in out-of-time-order correlators (OTOCs) holographically. By applying a computational method in graviton exchange, we analyze exponential behaviors in scalar and vector exchange terms at late times. We show that their exponential behaviors in simple holographic models are related to pole-skipping points obtained from the near-horizon equations of motion of scalar and vector fields. Our results are generalizations of the relation between the graviton exchange effect in OTOCs and the pole-skipping phenomena of the dual operator, to scalar and vector fields.
description: 18 pages, 2 figures. v2: typos corrected. v3: minor revision, comments added, a figure added
title: „Uneins auch hier“ – Musikalische Präferenzen bei Prinz Heinrich und Friedrich II.
Creators: name: Liedtke, Ulrike
Publisher: name: Max Weber Stiftung
Year: 2023
Subjects: subject: Friedrich II., Preußen, König
subject: Heinrich, Preußen, Prinz
subject: Musik
subject: Schloss Rheinsberg (Rheinsberg) / Schlosstheater
subject: 943
subject: 780.9
subject: 792

description: Die Prinzen Heinrich und Friedrich prägten maßgeblich musikalische Neurungen ihrer Zeit, wenngleich verschieden in Genre, Besetzung, Professionalität, Funktion, Spielstätte, Philosophie und finanziellem Rahmen. Der Kronprinz verstand sich als Musiker und Komponist, Prinz Heinrich eher als Dichter, Librettist, Deklamator und Theaterakteur. Friedrich übte täglich Flöte, Heinrich spielte gelegentlich Geige. Friedrich wurde Opernhauserbauer und Repertoire bestimmender Impresario in Berlin, Heinrich ließ das Komödienhaus in Rheinsberg bauen und agierte als vielseitiger Theatermacher. Friedrich umgab sich mit Theaterphilosophen, Heinrich mit Theaterpraktikern. Friedrich liebte die kammermusikalische Feinheit, Heinrich das große Hoffest. Während König Friedrich II. in Berlin die repräsentativen italienischen Opern von Graun und Hasse pflegte und zugleich in Sanssouci mit ausgewählten Hofmusikern um seinen Lehrer Quantz kompositorisch an der Entwicklung der Vorklassik beteiligt war, ermöglichte Prinz Heinrich im Rheinsberger Komödienhaus Glucks französische Reformoper und deutsche Singspiele der Zweiten Berliner Liederschule.
description: Gespräche am Rheinsberger Musenhof – Auftakt: Beiträge des ersten Kolloquiums vom 6. und 7. Mai 2022, p. 91
A preserved high-z compact progenitor in the heart of NGC3311 revealed with MUSE 2D stellar population analysis
Creators: name: Barbosa, C. E.
name: Spiniello, C.
name: Arnaboldi, M.
name: Coccato, L.
name: Hilker, M.
name: Richtler, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive early-type galaxies are believed to be the end result of an extended mass accretion history. The stars formed in situ very early on in the initial phase of the assembly might have originated from an extremely intense star formation burst, and may still be found within the cores of such galaxies today. We investigate the presence of a surviving high-$z$ compact progenitor component in the brightest galaxy of the Hydra I cluster, NGC 3311, by mapping its 2D kinematics and stellar population out to 2 effective radii, combining MUSE observations, extended EMILES models, and a newly developed parametric fully Bayesian framework using full-spectrum fitting. We present 2D maps and radial profiles of the stellar velocity dispersion, age, total metallicity, $α$-element, sodium abundance ([Na/Fe]), and the initial mass function (IMF) slope. All properties have significant gradients, confirming the existence of multiple structural components, including a young, metal-rich "blue spot". We find that the component dominating the light budget of NGC 3311 within $R\lesssim 2.0$ kpc is the surviving $z=0$ analog of a high-$z$ compact core. This concentrated structure has a relatively small velocity dispersion ($σ_*\approx 180$ km s$^{-1}$), is very old (ages$\gtrsim 11$ Gyr), metal-rich ([Z/H]$\sim0.2$ and [Na/Fe]$\sim0.4$), and has a bottom-heavy IMF (with slope $Γ_b\sim2.4$). In the outer region, stars become increasingly hotter, younger, metal and sodium poorer, $α$-element richer, and the IMF slope becomes Chabrier-like. The multiple structural components in NGC 3311 confirm the predictions from the two-phase formation scenario for NGC 3311. Interestingly, the outer stellar population has an overabundant [$α$/Fe], most likely because NGC 3311, located at the center of the galaxy cluster, accreted stars from rapidly quenched satellites.[Abridged]
description: 19 pages, 11 figures, 1 appendix, accepted for publication in A&A, with substantial improvement and language editing endorsed
Parafermionic derivation of Andrews-type multiple sums
Creators: name: Jacob, P.
name: Mathieu, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A multi-parafermion basis of states for the Z_k parafermionic models is derived. Its generating function is constructed by elementary steps. It corresponds to the Andrews multiple-sum which enumerates partitions whose parts separated by the distance k-1 differ by at least 2. Two analogous bases are derived for graded parafermions; one of these entails a new expression for their fermionic characters.
description: 16 pages
THE IMPACT OF CLIMATE CHANGE ON THE PROFITABILITY OF SITE SPECIFIC TECHNOLOGIES
Creators: name: Finger, Robert
name: Gerwig, Claude N.
name: Finger, Robert
name: Gerwig, Claude N.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Climate Change
subject: Site Specific Technologies
subject: Adaptation
subject: Crop Production Function.

description: Site Specific Technologies (SST) can reduce environmental pollution caused by common agricultural practice. Using a case study for corn yields, we investigate the impact of climate change (CC) on profitability of SSTs. We find CC to increase spatial variability of soils with respect to optimal input application and yield variability. This leads, ceteris paribus, to higher incentives for SST adoption in the future.
Can Small Museums Develop Compelling, Educational and Accessible Web Resources? The Case of Accademia Carrara
Creators: name: Filippini-Fantoni, Silvia
name: Bowen, Jonathan P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Multimedia (cs.MM)
subject: Computers and Society (cs.CY)
subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.5; H.3.7; H.4.3; H.5.1; H.5.2; H.5.3; H.5.4; K.3.1; K.4.0

description: Due to the lack of budget, competence, personnel and time, small museums are often unable to develop compelling, educational and accessible web resources for their permanent collections or temporary exhibitions. In an attempt to prove that investing in these types of resources can be very fruitful even for small institutions, we will illustrate the case of Accademia Carrara, a museum in Bergamo, northern Italy, which, for a current temporary exhibition on Cezanne and Renoir's masterpieces from the Paul Guillaume collection, developed a series of multimedia applications, including an accessible website, rich in content and educational material [www.cezannerenoir.it].
description: 14 pages, 6 figures
Discriminating among interpretations for the $X(2900)$ states
Creators: name: Burns, T. J.
name: Swanson, E. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make predictions for the production and decays of $X(2900)$ states, and their possible charged partners, in $B^+$ and $B^0$ decays, considering a number of competing models for the states, including triangle diagrams mediated by quark exchange or pion exchange, and resonance scenarios including molecules and tetraquarks. Assuming only isospin symmetry and the dominance of colour-favoured weak decays, we find characteristic differences in the predictions of the different models. Future experimental studies can therefore discriminate among the competing interpretations for the states.
description: 13 pages, 3 figures. Version to appear in Phys.Rev.D
ECONOMETRIC ANALYSIS OF MARKET POWER ON THE UKRAINIAN MARKET FOR RAW MILK
Creators: name: Perekhozhuk, Oleksandr
name: Grings, Michael
name: Perekhozhuk, Oleksandr
name: Grings, Michael
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business

description: The main emphasis of the present study is the empirical analysis of buyer market power of the Ukrainian milk processing industry on the market for raw milk. For an econometric analysis of pricing behaviour on the Ukrainian market for raw milk a sectoral, comparative-static structural model, based on the New Empirical Industrial Organization (NEIO) framework has been constructed. The model consists of a short-term supply function for raw milk and a first order condition for profit maximizing raw milk demand of the milk processing enterprises. The results of the econometric estimation of the model do not show any evidence for the existence of market power in the Ukrainian milk processing industry on the national level for the estimation period January 1996 to December 2003. However, these results do not exclude existence of market power on the regional level.
Transcription of the narration of Reel #4 (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio files VP-160717-02a/c: transcription of VP-190317-05 (narration of Reel #4 from the LA 256 collection at SCOIL, one of six reels of 8mm film created by Verdena in the 1960s, featuring scenes of everyday life around Hoopa Valley as well as Brush Dances), from 8:00 to 12:12. Due to re-numbering, Reel #4 has been assigned the CLA item number LA 256.043.
Primordial monopolium as dark matter
Creators: name: Vento, Vicente
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The existence of monopoles is a characteristic signature of Kaluza-Klein multidimensional theories. The topology of these solutions is extremely interesting. The existence of a dipole solution, which we have associated to a monople-anti-monopole bound state, is the leitmotiv of this investigation. The dipole in its lowest energy state, which we here call also monopolium, is electromagnetically inert in free space interacting only gravitationally. Monopolium when interacting with time dependent magnetic fields acquires a time dependent induced magnetic moment and radiates. We have analyzed the most favorable astrophysical scenario for radiative monopolium and found that the amount of radiation is so small that is not detectable by conventional equipments. These findings suggest that Kaluza-Klein monopolium, if existent, would be a candidate for a primordial dark matter constituent.
description: 11 pages and 9 figures
Observation of a Mott insulating ground state for Sn/Ge(111) at low temperature
Creators: name: Cortes, R.
name: Tejeda, A.
name: Lobo, J.
name: Didiot, C.
name: Kierren, B.
name: Malterre, D.
name: Michel, E. G.
name: Mascaraque, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report an investigation on the properties of 0.33 ML of Sn on Ge(111) at temperatures down to 5 K. Low-energy electron diffraction and scanning tunneling microscopy show that the (3x3) phase formed at 200 K, reverts to a new (root-3xroot-3)R30 phase below 30 K. The vertical distortion characteristic of the (3x3) phase is lost across the phase transition. Angle-resolved photoemission experiments show that concomitantly with the structural phase transition, a metal-insulator phase transition takes place. In agreement with theoretical predictions, the (root-3xroot-3)R30 ground state is interpreted as the experimental realization of a Mott insulator for a narrow half-filled band in a two-dimensional triangular lattice.
description: 4 pages, 4 figures
Final state interactions and long-distance effects in B to pion pion K and B to K anti K K decays
Creators: name: Lesniak, Leonard
name: Furman, Agnieszka
name: Kaminski, Robert
name: Loiseau, Benoit
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Charged and neutral B decays into the pi+pi-K, K+K-K and K0S K0S K0S systems have been studied. The pi+pi- and K+K- final state interactions in the S-wave isoscalar state are treated in an unitary way. The long-distance contributions called charming penguins are introduced in the model. Effective mass distributions, branching ratios and some asymmetries are succesfully compared with the recent BaBar and Belle data. A particularly large negative direct CP-violating asymmetry in the charged B decays into f0(980)K is evaluated for one set of the charming penguin amplitudes.
description: 4 pages, 1 figure, contribution to Proc. Int. Europhysics Conference on High Energy Physics (HEP2005), July 21-27, 2005, Lisbon, Portugal; PoS(HEP2005)249
Relativistic mean-field corrections for interactions of dark matter particles with nucleons
Creators: name: Wang, X. G.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the interactions of weakly interacting massive particles (WIMPS) with nucleons in nuclear medium by taking into account the effect of nuclear dynamics. We derive the nonrelativistic effective operators starting from the relativistic mean-field approximation. Certain interactions receive non-negligible corrections, which may significantly change the sensitivities of WIMP-nucleus scattering cross section to these effective operators.
description: 9 pages, 1 table
In-Medium properties of the omega meson in photon induced nuclear reactions
Creators: name: Muehlich, P.
name: Mosel, U.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the possibility to study the in-medium changes of the properties of the omega meson in reactions on ordinary nuclei with elementary electromagnetic probes. We present a tree-level calculation of the elementary gamma p -> omega p process which is extended to describe also the photoproduction of medium-modified omega mesons in nuclear matter. Using a semi-classical transport approach we obtain results for e+e- and pi0 gamma photoproduction off heavy nuclei in the invariant mass range of the rho and omega mesons. Both reactions are also studied experimentally and are presently being analyzed at accelerator facilities in Bonn and at Jefferson Lab. We show that the in-medium signals expected can be as large as those obtained in heavy-ion reactions.
description: 8 pages, 7 figures, Contribution to the "Workshop on In-Medium Hadron Physics", Giessen, Germany, 11-13 November 2004
Emergent chiral symmetry in a three-dimensional interacting Dirac liquid
Creators: name: Szabo, Andras
name: Roy, Bitan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the effects of strong Hubbardlike local electronic interactions on three-dimensional four-component massless Dirac fermions, which in a noninteracting system possess a microscopic global U(1)$\otimes$SU(2) chiral symmetry. A concrete lattice realization of such chiral Dirac excitations is presented, and the role of electron-electron interactions is studied by performing a field theoretic renormalization group (RG) analysis, controlled by a \emph{small} parameter $ε$ with $ε=d-1$, about the lower-critical one spatial dimension. Besides the noninteracting Gaussian fixed point, the system supports four quantum critical and four bicritical points at nonvanishing interaction couplings $\sim ε$. Even though the chiral symmetry is absent in the interacting model, it gets restored (either partially or fully) at various RG fixed points as emergent phenomena. A representative cut of the global phase diagram displays a confluence of scalar and pseudoscalar excitonic and superconducting (such as the $s$-wave and $p$-wave) mass ordered phases, manifesting restoration of (a) chiral U(1) symmetry between two excitonic masses for repulsive interactions and (b) pseudospin SU(2) symmetry between scalar or pseudoscalar excitonic and superconducting masses for attractive interactions. Finally, we perturbatively study the effects of \emph{weak} rotational symmetry breaking on the stability of various RG fixed points.
description: Published Version: 28 Pages, 3 Figures, 4 Tables
Statistical analysis of periodic data in neuroscience
Creators: name: Baker, Daniel H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Many experimental paradigms in neuroscience involve driving the nervous system with periodic sensory stimuli. Neural signals recorded using a variety of techniques will then include phase-locked oscillations at the stimulation frequency. The analysis of such data often involves standard univariate statistics such as T-tests, conducted on the Fourier amplitude components (ignoring phase), either to test for the presence of a signal, or to compare signals across different conditions. However, the assumptions of these tests will sometimes be violated because amplitudes are not normally distributed, and furthermore weak signals might be missed if the phase information is discarded. An alternative approach is to conduct multivariate statistical tests using the real and imaginary Fourier components. Here the performance of two multivariate extensions of the T-test are compared: Hotelling's $T^2$ and a variant called $T^2_{circ}$. A novel test of the assumptions of $T^2_{circ}$ is developed, based on the condition index of the data (the square root of the ratio of eigenvalues of a bounding ellipse), and a heuristic for excluding outliers using the Mahalanobis distance is proposed. The $T^2_{circ}$ statistic is then extended to multi-level designs, resulting in a new statistical test termed $ANOVA^2_{circ}$. This has identical assumptions to $T^2_{circ}$, and is shown to be more sensitive than MANOVA when these assumptions are met. The use of these tests is demonstrated for two publicly available empirical data sets, and practical guidance is suggested for choosing which test to run. Implementations of these novel tools are provided as an R package and a Matlab toolbox, in the hope that their wider adoption will improve the sensitivity of statistical inferences involving periodic data.
description: 18 pages, 10 figures
Capital investment appraisal for advanced mining technology : case studies in GPS and information based surface mining technology
Creators: name: Dessureault, Sean
Publisher: name: University of British Columbia
Year: 2009

description: Canadian, American and Australian mining industries are currently faced with the requirement to streamline their operations in light of new economic realities. Automation has been seen as a key step toward the survival and competitiveness of these industries. Unfortunately, technology providers seldom have the expertise or resources to properly transfer technology from the development stage to the productive stage. Mining companies, the potential customers of technology providers are similarly inexperienced at appraising and implementing these new technologies. The manufacturing industry is well experienced in appraising (referred most commonly in manufacturing as justifying) and implementing new technology and has developed numerous capital investment appraisal (CIA) methods that can more accurately appraise new technology. These techniques offer the potential to be adapted to suit the mining industry. The primary objective of this thesis is to investigate the usefulness of various decisionmaking tools in the CIA of advanced technologies for the mining industry. This research discusses the current technological situation in the mining industry to show the requirement for new capital appraisal techniques. The current evaluation methods are analyzed and their weaknesses are identified. The classification schemes and CIA methods derived from the manufacturing industry are adapted to mining. Analytical examples are provided in terms of hypothetical situations and two case studies at an open pit copper mine in British Columbia are described. The first case study reveals the limitations of current CIA methods when applied to advanced technology and applies alternative CIA techniques whose applicability is rated by the decision-maker at the mine as being "very useful". The second case study uses object based simulation as a CIA tool for a blending project by estimating parameters within the project that were previously only subjective opinion.
The Danger Theory and Its Application to Artificial Immune Systems
Creators: name: Aickelin, Uwe
name: Cayzer, Steve
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Over the last decade, a new idea challenging the classical self-non-self viewpoint has become popular amongst immunologists. It is called the Danger Theory. In this conceptual paper, we look at this theory from the perspective of Artificial Immune System practitioners. An overview of the Danger Theory is presented with particular emphasis on analogies in the Artificial Immune Systems world. A number of potential application areas are then used to provide a framing for a critical assessment of the concept, and its relevance for Artificial Immune Systems.
The fate of planetesimals formed at planetary gap edges
Creators: name: Eriksson, L. E. J.
name: Ronnet, T.
name: Johansen, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The presence of rings and gaps in protoplanetary discs are often ascribed to planet-disc interactions, where dust and pebbles are trapped at the edges of planetary induced gas gaps. Recent work has shown that these are likely sites for planetesimal formation via the streaming instability. Given the large amount of planetesimals that potentially form at gap edges, we address the question of their fate and ability to radially transport solids in protoplanetary discs. We perform a series of N-body simulations of planetesimal orbits, taking into account the effect of gas drag and mass loss via ablation. We consider two planetary systems: one akin to the young Solar System, and another one inspired by HL Tau. In both systems, the close proximity to the gap-opening planets results in large orbital excitations, causing the planetesimals to leave their birth locations and spread out across the disc soon after formation. Planetesimals that end up on eccentric orbits interior of 10au experience efficient ablation, and lose all mass before they reach the innermost disc region. In our nominal Solar System simulation with $\dot{M}_0=10^{-7}\, M_{\odot}\, \textrm{yr}^{-1}$ and $α=10^{-2}$, we find that 70% of the initial planetesimal mass has been ablated after 500kyr. The ablation rate in HL Tau is lower, and only 11% of the initial planetesimal mass has been ablated after 1Myr. The ablated material consist of a mixture of solid grains and vaporized ices, where a large fraction of the vaporized ices re-condense to form solid ice. Assuming that the solids grow to pebbles in the disc midplane, this results in a pebble flux of $\sim 10-100\,M_{\oplus}\textrm{Myr}^{-1}$ through the inner disc. Our results demonstrate that scattered planetesimals can carry a significant flux of solids past planetary-induced gaps in young and massive protoplanetary discs.
description: Accepted for publication in A&A
Annealing-induced changes of the magnetic anisotropy of (Ga,Mn)As epilayers
Creators: name: Stanciu, V.
name: Svedlindh, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dependence of the magnetic anisotropy of As-capped (Ga,Mn)As epilayers on the annealing parameters - temperature and time - has been investigated. A uniaxial magnetic anisotropy is evidenced, whose orientation with respect to the crystallographic axes changes upon annealing from [-110] for the as-grown samples to [110] for the annealed samples. Both cubic an uniaxial anisotropies are tightly linked to the concentration of charge carriers, the magnitude of which is controlled by the annealing process.
description: 3 pages, 3 figures
Economic Dispatch With Distributed Energy Resources: Co-Optimization of Transmission and Distribution Systems
Creators: name: Zhou, Xinyang
name: Chang, Chin-Yao
name: Bernstein, Andrey
name: Zhao, Changhong
name: Chen, Lijun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The increasing penetration of distributed energy resources (DERs) in the distribution networks has turned the conventionally passive load buses into active buses that can provide grid services for the transmission system. To take advantage of the DERs in the distribution networks, this letter formulates a transmission-and-distribution (T&D) systems co-optimization problem that achieves economic dispatch at the transmission level and optimal voltage regulation at the distribution level by leveraging large generators and DERs. A primal-dual gradient algorithm is proposed to solve this optimization problem jointly for T&D systems, and a distributed market-based equivalent of the gradient algorithm is used for practical implementation. The results are corroborated by numerical examples with the IEEE 39-Bus system connected with 7 different distribution networks.
title: DPFU Theory: The Role of Sterile Neutrinos and Minigravitational Waves in Dark Matter, Dark Energy, and Neutrino Oscillations
title: Dei principium at finis universum
titleType: AlternativeTitle
Creators: name: Plhák, Boleslav
name: Novák, Marek
Publisher: name: Zenodo
Year: 2024
Subjects: Dark energy
Temná hmota
Neutrino oscilations
DPFU
Expansion of the Universe
Cosmology
Minigravitational Waves
Higgs Field Interactions
Numerical Simulations
Sjednocení fyziky

description: The DPFU theory (Dei Principium at Finis Universum) proposes a new model of the universe where sterile neutrinos play a key role in the dynamics of expansion and the formation of large-scale structures through interactions with the Higgs field. These interactions lead to the formation of minigravitational waves (MGWs), defined as localized density differences arising at the point of sterile neutrino decay. MGWs affect spacetime curvature and may explain phenomena such as dark energy, dark matter, and the accelerating expansion of the universe. This paper details the DPFU theory, presents results from extensive numerical simulations that support it, and discusses their correlation with experimental data. Additionally, the implications of the theory for cosmological modeling and future research directions are explored.
Temperature evolution of quasiparticle dispersion dynamics in semimetallic 1T-TiTe2 via high-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy
Creators: name: Zhu, Shuang-Xing
name: Zhang, Chen
name: Wu, Qi-Yi
name: Tang, Xiao-Fang
name: Liu, Hao
name: Liu, Zi-Teng
name: Luo, Yang
name: Song, Jiao-Jiao
name: Wu, Fan-Ying
name: Zhao, Yin-Zou
name: Liu, Shu-Yu
name: Le, Tian
name: Lu, Xin
name: Ma, He
name: Liu, Kai-Hui
name: Yuan, Ya-Hua
name: Huang, Han
name: He, Jun
name: Liu, H. Y.
name: Duan, Yu-Xia
name: Meng, Jian-Qiao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy were used to study semimetallic 1T - TiTe2 quasiparticle dispersion and dynamics. A kink and a flat band, having the same energy scale and temperature-dependent behaviors along the G-M direction, were detected. Both manifested at low temperatures but blurred as temperature increased. The kink was formed by an electron-phonon coupling. And the localized flat band might be closely related to an electron-phonon coupling. Ultrafast optical spectroscopy identified multiple distinct time scales in the 10-300 K range. Quantitative analysis of the fastest decay process evidenced a significant lifetime temperature dependence at high temperatures, while this starts to change slowly below ~ 100 K where an anomalous Hall coefficient occurred. At low temperature, a coherent A1g phonon mode with a frequency of ~ 4.36 THz was extracted. Frequency temperature dependence suggests that phonon hardening occurs as temperature falls and anharmonic effects can explain it. Frequency fluence dependence indicates that the phonons soften as fluence increases.
description: 7 pages, 4 figures
Copyright and Promotion: Oxymoron or Opportunity?
Creators: name: Numerico, Teresa
name: Bowen, Jonathan P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Computers and Society (cs.CY)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences
subject: H.3.5; H.3.7; K.3.1; K.4.1; K.4.2; K.5.1; K.5.2

description: Copyright in the cultural sphere can act as a barrier to the dissemination of high-quality information. On the other hand it protects works of art that might not be made available otherwise. This dichotomy makes the area of copyright difficult, especially when it applies to the digital arena of the web where copying is so easy and natural. Here we present a snapshot of the issues for online copyright, with particular emphasis on the relevance to cultural institutions. We concentrate on Europe and the US; as an example we include a special section dedicated to the situation in Italy.
description: 10 pages, 0 figures