cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Legendrian knots and monopoles
Creators: name: Mrowka, Tomasz S
name: Rollin, Yann
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57M25, 57M27, 57R17, 57R57

description: We prove a generalization of Bennequin's inequality for Legendrian knots in a 3-dimensional contact manifold (Y,xi), under the assumption that Y is the boundary of a 4-dimensional manifold M and the version of Seiberg-Witten invariants introduced by Kronheimer and Mrowka [Invent. Math. 130 (1997) 209-255] is nonvanishing. The proof requires an excision result for Seiberg-Witten moduli spaces; then the Bennequin inequality becomes a special case of the adjunction inequality for surfaces lying inside M.
description: This is the version published by Algebraic & Geometric Topology on 24 February 2006
A Note on Supersymmetric Godel Black Holes, Strings and Rings of Minimal d=5 Supergravity
Creators: name: Ortin, Tomas
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how any asymptotically flat supersymmetric solution of minimal d=5 supergravity with flat base space can be deformed into another supersymmetric asymptotically-Godel solution and apply this procedure to the recently found supersymmetric black-ring and black-string solutions.
description: 9 pages, Latex2e. Additional references included
OCENA ZRÓWNOWAŻENIA PRODUKCJI ROLNICZEJ W GOSPODARSTWACH UCZESTNICZĄCYCH W PROGRAMIE ROLNOŚRODOWISKOWYM ZA POMOCĄ MODELU RISE
Creators: name: Feledyn-Szewczyk, Beata
name: Kopiński, Jerzy
name: Feledyn-Szewczyk, Beata
name: Kopiński, Jerzy
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: sustainability assessment
subject: RISE model
subject: agri-environment program
subject: farms

description: The results of the evaluation the sustainability of agricultural production using RISE model, in 3 selected farms, implementing the agri-environmental programme 2007-2013, were presented in the paper. The RISE model (Response-Inducing Sustainability Evaluation) is a tool (computer program) for easy and holistic assessment of agricultural production sustainability at a farm level in ecological, economic, and social aspects and enables the initiation of measures to improve the sustainability. The analysis showed that only one of 3 tested farms, implementing “Organic Farming” package, reached the positive values of all 12 indices and could be defined as sustainable according to the RISE methods. Other farms obtained the negative value of the biodiversity indicator. The best economic results achieved the farm of plant production profile, implementing “Sustainable Agriculture” package whereas the highest values of environmental indicators characterized organic farm. The evaluation indicated the possible directions of improvement the agricultural production in tested farms.
SALDO DOPŁAT I PODATKÓW W POLSKICH GOSPODARSTWACH ROLNYCH NA TLE WYBRANYCH KRAJÓW UNII EUROPEJSKIEJ
Creators: name: Gołasa, Piotr
name: Gołasa, Piotr
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: FADN
subject: support
subject: taxation of agriculture

description: The aim of this article was to determine the balance of subsidies and taxes in agricultural holdings (balance of public transfers) in Poland compared to selected EU countries in the years 2006-2012. The calculations were based on FADN data. In all EU countries over the considered period there was a positive balance transfers for all types of farms. Balance of transfers for Polish farms is at a low level of 5271 EUR (twice lower than the EU average). It is caused by lower average size of farms. Compered to other UE countries, polish farms do not have special advantage due to construction of subsidies and taxes system. In others countries transfers are at higher levels, so it can not be a argument to the introduction of income tax in agriculture
Spontaneous CP violation and quark mass ambiguities
Creators: name: Creutz, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: I explore the regions of quark masses where CP will be spontaneously broken in the strong interactions. The boundaries of these regions are controlled by the chiral anomaly, which manifests itself in ambiguities in the definition of non-degenerate quark masses. In particular, the concept of a single massless quark is ill defined.
description: 9 pages, 5 figures, contribution to the 6th Conference on Quark Confinement and the Hadron Spectrum
title: Baghdad - Tigris riverside revival
Creators: name: Al-Hilou, Sahra
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Architektonischer Entwurf
subject: Architectural design

description: The project focuses on the regeneration of an important area of Baghdad, the tigris riverside of the karradah district, jadriya and the green zone. With the help of a parametric design program, the masterplan applies a new method of concept, that enables a new composition of a barrier-free accessibilty of the river, to embrace the riverwalk in a new way, and an essential public space with a cultural axis that connects the two riverside. Reviving the waterfront with a sequence of zones designated for play, relaxation, learning, gathering, connecting, enjoying.
Exact Exploration
Creators: name: Blass, Andreas
name: Dershowitz, Nachum
name: Gurevich, Yuri
Publisher: name: arXiv
Year: 2024
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Data Structures and Algorithms (cs.DS)
subject: Software Engineering (cs.SE)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Recent analysis of classical algorithms resulted in their axiomatization as transition systems satisfying some simple postulates, and in the formulation of the Abstract State Machine Theorem, which assures us that any classical algorithm can be emulated step-by-step by a most general model of computation, called an ``abstract state machine''. We refine that analysis to take details of intra-step behavior into account, and show that there is in fact an abstract state machine that not only has the same state transitions as does a given algorithm but also performs the exact same tests on states when determining how to proceed to the next state. This enhancement allows the inclusion -- within the abstract-state-machine framework -- of algorithms whose states only have partially-defined equality, or employ other native partial functions, as is the case, for instance, with inversion of a matrix of computable reals.
UWARUNKOWANIA ZMIAN WOLUMENU PRODUKCJI, DOCHODÓW ORAZ DOCHODOWOŚCI PRACY SEKTORA ROLNEGO W CHORWACJI
Creators: name: Gołaś, Zbigniew
name: Gołaś, Zbigniew
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: work profitability in agriculture
subject: economic accounts for agriculture
subject: Croatia

description: The main goal of the paper was to analyze the changes in the work profitability of Croatian agriculture. The analysis was based on the Economic Accounts for Agriculture. The basis of the research was formed by proposed indicator systems operating profitability and factor analysis. Studies have shown that in the post-accession period, the profitability in Croatian agriculture has experienced marginal increase, and in the years 2013-2014 in relation to years 2011-2012, the level of profitability of labor was higher in real terms by only 1%. In the light of the factor analysis, as the main determinants of changes in operating profitability in the Croatian agriculture, changes in labor productivity, production subsidies and level and structure of employment shall be indicated.
title: Musical Instrument Museum (MEM) Istanbul
Creators: name: Petek, Maide Aybala
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Architektonischer Entwurf
subject: architectural design

description: Music retained a very important position for Turkish military, public and religious life throughout thousand years of Turkish history. Istanbul is an art centre along history, where the infinite composers have lived and were highly developed. This thesis proposes a Musical Instruments Museum design for Turkey in Istanbul. Absence of a Museum pertaining Classical Turkish Music, which is among a few well-known classical music in the point of generating tradition and permanence, is a big loss. The project, which is going to be prepared, has been set while considering it was not ever built in Istanbul. European Council has confirmed the museum in 2006 and it came to the fore in 2010 once again, because of Istanbul has been designated as The European Capital of Culture in the mentioned year and also that year was 400th anniversary of Ali Ufki Bey's birth. I have chosen the area for location which is currently used as a multi-storey car park in Beyoglu. This place that is known as 'Pera' stands for 'up' in ancient Greek language. I aimed to create an appropriate centre in this area which is very central both for Istanbul residents and tourists, accommodating functions such as caffé, archive, and study or experience workshops in where visitors may know and learn the instruments; and a centre which corresponds the Musical Complex idea in Turkish Culture. The building has been interpreted organically with musical waves in its form. The large bright fields inside are representing the relieving atmosphere given by Dom in Turkish culture.
ODPOWIEDZIALNOŚĆ ROLNIKÓW ZA STAN ŚRODOWISKA NATURALNEGO
Creators: name: Gołębiewska, Barbara
name: Pajewski, Tomasz
name: Gołębiewska, Barbara
name: Pajewski, Tomasz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: environmental protection
subject: sustainable development
subject: agriculture
subject: environmental awareness

description: The paper attempts to evaluate awareness of Polish farmers the responsibility for the negative consequences that can cause agricultural production and the ability to counteract this effect. The aim of the study was also the assessment of knowledge of the principles of farming in line with sustainable development. The article presents the opinion of farmers on the responsibility for the consequences of negative externalities in agriculture. It was found that farmers know the rules of the Common Good Agricultural Practice and cross compliance. It can be concluded that farmers are afraid of responsibility for the negative environmental effects.
Das Informationsnetz Landwirtschaftlicher Buchführungen als Grundlage für die Politikbewertung
Creators: name: Koester, Ulrich
name: Loy, Jens-Peter
name: Koester, Ulrich
name: Loy, Jens-Peter
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
Research Methods/ Statistical Methods

description: Ziffer 68 der Präambel der Verordnung (EU) Nr. 1306 /2013 fordert: „Jede GAP-Maßnahme sollte überwacht und bewertet werden, um ihre Qualität zu verbessern und ihre Wirksamkeit aufzuzeigen“. In diesem Policy Brief wird untersucht, ob das Informationsnetz Landwirtschaftlicher Buchführungen (INLB), das laut offizieller Verlautbarung als Grundlage für Politikbewertungen genutzt werden soll, auch für die Quantifizierung der Wirkungen der Direktzahlungen auf die offiziellen agrarpolitischen Ziele verwendet werden kann. INLB-Daten sind wegen der Besonderheiten der Stichprobe nicht geeignet für die Bewertung von Direktzahlungen. Erstens, die Stichprobe für die Auswahl der Betriebe für das INLB erfolgt nicht aus der Population aller Betriebe, die Direktzahlungen erhalten. Folglich kann die Wirkung für eine Gruppe landwirtschaftlicher Betriebe mit Hilfe dieser Daten nicht ermittelt werden. Zweitens – und wahrscheinlich von größerer Bedeutung – wird mit Hilfe der Daten das sogenannte „landwirtschaftliche Einkommen“ (das Einkommen aus landwirtschaftlicher Tätigkeit) und nicht das Einkommen der Landwirte erfasst. Drittens, die Datenerhebung hat sich im Zeitverlauf verändert und es gibt bei der Ermittlung erhebliche Unterschiede zwischen den EU-Ländern. Dieser Policy Brief zeigt grundsätzliche Probleme auf und geht auf beispielhafte Datenprobleme ausgewählter Länder ein. Die Analyse führt zu der Schlussfolgerung, dass der gegenwärtige Datensatz des INLB nicht für die Bewertung der Einkommenswirkungen von Direktzahlungen geeignet ist. Das Ergebnis der Untersuchung stimmt mit der Analyse des Europäischen Rechnungshofs überein (European Court of Auditors, 2016).
Cosmic String Evolution in Higher Dimensions
Creators: name: Avgoustidis, A.
name: Shellard, E. P. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the equations of motion for cosmic strings in extensions of the 3+1 FRW model with extra dimensions. From these we derive a generalisation of the Velocity-dependent One-Scale (VOS) model for cosmic string network evolution which we apply, first, to a higher-dimensional isotropic $D+1$ FRW model and, second, to a 3+1 FRW model with static flat extra dimensions. In the former case the string network does not achieve a scaling regime because of the diminishing rate of string intersections ($D>3$), but this can be avoided in the latter case by considering compact, small extra dimensions, for which there is a reduced but still appreciable string intercommuting probability. We note that the velocity components lying in the three expanding dimensions are Hubble-damped, whereas those in the static extra dimensions are only very weakly damped. This leads to the pathological possibility, in principle, that string motion in the three infinite dimensions can come to a halt preventing the strings from intersecting, with the result that scaling is not achieved and the strings irreversibly dominate the early universe. We note criteria by which this can be avoided, notably if the spatial structure of the network becomes essentially three-dimensional, as is expected for string networks produced in brane inflation. Applying our model to a brane inflation setting, we find scaling solutions in which the effective 3D string motion does not necessarily stop, but it is slowed down because of the excitations trapped in the extra dimensions. These effects are likely to influence cosmic string network evolution for a long period after formation and we discuss their more general implications.
description: 23 pages, 8 figures. Minor updates and notational clarifications
Orbital Physics in the Perovskite Ti Oxides
Creators: name: Mochizuki, Masahito
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the perovskite Ti oxide RTiO3 (R=rare-earth ions), the Ti t2g orbitals and spins in the 3d^1 state couple each other through the strong electron correlations, resulting in a rich variety of orbital-spin phases. The origin and nature of orbital-spin states of these Mott insulators have been intensively studied. In this article, we review the studies on orbital physics in the perovskite titanates. We focus on the following three topics: (1) the origin and nature of the ferromagnetism as well as the orbital ordering in the compounds with relatively small R ions such as GdTiO3 and YTiO3, (2) the origin of the G-type antiferromagnetism and the orbital state in LaTiO3, and (3) the orbital-spin structures in other AFM(G) compounds with relatively large R ions (R=Ce, Pr, Nd and Sm). On the basis of these discussions, we discuss the whole phase diagram together with mechanisms of the magnetic phase transition. We also show that the Ti t2g degeneracy is inherently lifted in the titanates, which allows the single-band descriptions of the ground-state and low-energy electronic structures as a good starting point. Our analyses indicate that these compounds offer touchstone materials described by the single-band Hubbard model on the cubic lattice. From this insight, we also reanalyze the hole-doped titanates. Experimentally revealed filling-dependent and bandwidth-dependent properties and the critical behavior of the metal-insulator transitions are discussed in the light of theories based on the single-band Hubbard models.
description: Review article, 26 pages, to appear in New Journal of Physics
From spatially periodic instantons to singular monopoles
Creators: name: Charbonneau, Benoit
Publisher: name: arXiv
Year: 2004
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C07

description: The main result is a computation of the Nahm transform of a SU(2)-instanton over RxT^3, called spatially-periodic instanton. It is a singular monopole over T^3, a solution to the Bogomolny equation, whose rank is computed and behavior at the singular points is described.
description: 23 pages. Major revision: proofs added for Lemma 4.1, Theorem 4.2, and Corollary 6.3, and many typos corrected
A Fresh Look at Gauge Coupling Unification
Creators: name: Bourilkov, Dimitri
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The apparent unification of gauge couplings around 10^16 GeV is one of the strong arguments in favor of Supersymmetric extensions of the Standard Model (SM). In this contribution a new analysis, using the latest experimental data, is performed. The strong coupling alpha_s emerges as the key factor for evaluating the results of the fits, as the experimental and theoretical uncertainties in its measurements are substantially higher than for the electromagnetic and weak couplings. The present analysis pays special attention to numerical and statistical details. The results, combined with the current limits on the supersymmetric particle masses, favor a value for the SUSY scale
description: 4 pages, 1 table, 1 figure; presented at the Meeting of the Division of Particles and Fields of the APS, Riverside, USA, August 2004
Analysis of the Use of Satellite Data and Drones for Land Monitoring in Kazakhstan
Creators: name: Kudaibergenov, Olzhas
Publisher: name: Zenodo
Year: 2024

description: The article discusses the use of satellite data and drones for land monitoring in Kazakhstan, emphasising their importance in the context of population growth and increasing agricultural demand. Satellite technologies, such as Sentinel-2 and Landsat, provide essential data for analysing land resources, including soil erosion and the condition of agricultural lands. Unmanned aerial vehicles (UAVs) complement satellite data by offering detailed low-altitude imagery, enabling the detection of local issues such as irrigation system failures and soil compaction.

The study demonstrates that integrating drone and satellite data allows for more efficient land resource management. For example, 35% of agricultural land in southern Kazakhstan is affected by soil degradation, while overgrazing issues were identified in the northern regions. These innovative monitoring methods enable early detection of threats, allowing timely measures to be taken to improve land management practices.

The conclusion highlights that the use of these technologies requires not only infrastructure but also skilled professionals. The integration of satellites and drones creates opportunities for more precise and timely monitoring, which is essential for sustainable land resource management in Kazakhstan.
title: Ausnahmen nach § 69 der Bauordnung für Wien und deren Auswirkungen auf die Immobilienbewertung
Creators: name: Beilein, Veronika
Publisher: name: TU Wien
Year: 2016
Subjects: subject: §69 WBO
subject: Ausnahmen
subject: Bewertung von Abweichungen
subject: Wertsteigerung durch Ausnahmen

description: Um den Wert einer Ausnahme nach § 69 WBO berechnen zu können, ist es notwendig, diese planlich darzustellen und zahlenmäßig zu erfassen. Aus diesem Grund ist es erforderlich einen Architekten mit einzubeziehen, um die Möglichkeiten erkennen zu können und schlüssige Argumentationen zu formulieren. Jedenfalls muss der positive Effekt im Vergleich zum gesetzlich möglichen Rahmen dargestellt werden. Für die Bewertung ist es relevant, ob eine mögliche Abweichung bereits eingereicht wurde. Je nach Fall und Fortschritt einer Ausnahmebewilligung muss die richtige Bewertungsmethode ausgewählt werden. Diese Entscheidung ist abhängig davon, zu welchem Zweck eine Bewertung stattfinden soll, wer diese in Auftrag gibt und die Nutzung und Beschaffenheit des zu bewertenden Objektes. Die verschiedenen Bewertungsverfahren können grundsätzlich alle für eine Bewertung einer Ausnahme nach § 69 WBO herangezogen werden. Allerdings hat nicht jede Ausnahme nach § 69 WBO eine Flächenvergrößerung zur Folge. Es kann auch vorkommen, dass bestehende Flächen an sich verbessert werden. Dadurch sind nicht alle Bewertungsmethoden in gleicher Weise für jede Ausnahme anzuwenden. Zusätzlich kann der Ausgang einer betreffenden Bewilligung nicht vorausgesehen werden. Dieses Risiko kann nach rechnerischer Differenzierung des Mehrwertes durch diese Ausnahme, mit einer Wahrscheinlichkeit belegt werden, die das Risiko der Zurückweisung abgelten soll. Können Ausnahmen nicht in die Bewertung einfließen, kann die eventuelle Wertsteigerung einer Immobilie trotzdem als möglicher Bonus angesehen werden, darf dann allerdings nicht zur Entscheidungsgrundlage für z.B. einen Ankauf werden. Da es keine rechtlichen Regelungen für die Bewertung von Ausnahmen nach § 69 WBO gibt, obliegt es schlussendlich dem beauftragten Sachverständigen, inwieweit und in welcher Weise die Wertsteigerung durch eine Ausnahme Berücksichtigung finden kann. Der Sachverständige muss die Bewertung jedenfalls ausreichend begründen und nachvollziehbar darlegen können. Wurde eine Ausnahme bereits bewilligt oder vielleicht sogar schon baulich ausgeführt, ist diese bis zum Untergang der Immobilie auf jeden Fall bewertungsrelevant und sollte somit in eine allfällige Bewertung einfließen.
On the extreme stationary outflows from super-star clusters: from superwinds to supernebulae and further massive star formation
Creators: name: Tenorio-Tagle, Guillermo
name: Silich, Sergiy
name: Rodriguez-Gonzalez, Ary
name: Munoz-Tunon, Casiana
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The properties of star cluster winds in the supercritical, catastrophic cooling regime are discussed. We demonstrate that strong radiative cooling may inhibit superwinds and, after a rapid phase of accumulation of the ejected material within the star-forming volume, a new stationary isothermal regime, supported by the ionizing radiation from the central cluster, is established. The expected appearance of this core/halo supernebula in the visible line regime and possible late evolutionary tracks for super-star cluster winds, in the absence of ionizing radiation, are thoroughly discussed.
description: 11 pages, 5 figures, accepted for publication by The Astrophysical Journal
Smectic-like rheology and pseudo-layer compression elastic constant of a twist-bend nematic liquid crystal
Creators: name: Kumar, M. Praveen
name: Kula, P.
name: Dhara, Surajit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In twist-bend nematic (N\textsubscript{TB}) liquid crystals (LCs), the mean molecular orientation exhibits heliconical structure with nanoscale periodicity. On the mesoscopic scale, N\textsubscript{TB} resembles layered systems (like smectics), where the helical pitch is equivalent to "pseudo-layers" without a true mass density wave. We study rheological properties of a N\textsubscript{TB} phase and compare the results with those of an usual SmA phase. Analysing the shear response and adapting a simplified physical model for rheology of defect mediated lamellar systems we measure the pseudo-layer compression elastic constant $B_{eff}$ of N\textsubscript{TB} phase from the measurements of dynamic modulus $G^{*}(ω)$. We find that $B_{eff}$ of the N\textsubscript{TB} phase is in the range of $10^{3}-10^{6}$ Pa and it follows a temperature dependence, $B_{eff}\sim (T_{TB}-T)^{2}$ as predicted by the recent coarse-grained elastic theory. Our results show that the structural rheology of N\textsubscript{TB} is strikingly similar to that of the usual smectic LCs although the temperature dependence of $B_{eff}$ is much faster than smectic LCs as predicted by the coarse-grained models.
description: 6 pages, 6 figures
On the Generation, Propagation, and Reflection of Alfven Waves from the Solar Photosphere to the Distant Heliosphere
Creators: name: Cranmer, S. R.
name: van Ballegooijen, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comprehensive model of the global properties of Alfven waves in the solar atmosphere and fast solar wind. Linear non-WKB wave transport equations are solved from the photosphere to 4 AU, and for wave periods ranging from 3 seconds to 3 days. We derive a radially varying power spectrum of kinetic and magnetic energy fluctuations for waves propagating in both directions along a superradially expanding magnetic flux tube. This work differs from previous models in 3 major ways. (1) In the chromosphere and low corona, the successive merging of flux tubes on granular and supergranular scales is described using a 2D magnetostatic model of a network element. Below a critical merging height the waves are modeled as thin-tube kink modes, and we assume that all of the kink-mode wave energy is transformed into volume-filling Alfven waves above the merging height. (2) The frequency spectrum of horizontal motions is specified only at the photosphere based on prior analyses of G-band bright point kinematics. Everywhere else the amplitudes of outward and inward propagating waves are computed with no free parameters. We find that the wave amplitudes in the corona agree well with off-limb nonthermal line widths. (3) Nonlinear turbulent damping is applied to the results of the linear model using a phenomenological loss term. A single choice for the normalization of the turbulent outer-scale length produces both the right amount of damping at large distances (to agree with in situ measurements) and the right amount of heating in the extended corona (to agree with empirical wind acceleration models). In the corona, the modeled heating rate differs by more than an order of magnitude from a rate based on isotropic Kolmogorov turbulence.
description: 54 pages (AASTeX), 19 figures, Ap. J. Supplement, in press (February 2005)
Physics results from the first COHERENT observation of CE$ν$NS in argon and their combination with cesium-iodide data
Creators: name: Cadeddu, M.
name: Dordei, F.
name: Giunti, C.
name: Li, Y. F.
name: Picciau, E.
name: Zhang, Y. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results on the radius of the neutron distribution in $^{40}\text{Ar}$, on the low-energy value of the weak mixing angle, and on the electromagnetic properties of neutrinos obtained from the analysis of the coherent neutrino-nucleus elastic scattering data in argon recently published by the COHERENT collaboration, taking into account proper radiative corrections. We present also the results of the combined analysis of the COHERENT argon and cesium-iodide data for the determination of the low-energy value of the weak mixing angle and the electromagnetic properties of neutrinos. In particular, the COHERENT argon data allow us to improve significantly the only existing laboratory bounds on the electric charge $q_{μμ}$ of the muon neutrino and on the transition electric charge $q_{μτ}$.
description: 20 pages
Spread-F occurrence during geomagnetic storms near the southern crest of the EIA in Argentina
Creators: name: González, Gilda
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This work presents, for the first time, the analysis of the occurrence of ionospheric irregularities during geomagnetic storms at Tucumán-Argentina, a low latitude station in the Southern American longitudinal sector ( 26.9 ° S, 294.6 ° E; magnetic latitude 15.5 ° S), near the southern crest of the equatorial ionization anomaly (EIA). Three geomagnetic storms occurred on May 27, 2017 (a month of low occurrence rates of spread-F), October 12, 2016 (a month of transition from low to high occurrence rates of spread-F) and November 7, 2017 (a month of high occurrence rates of spread-F) are analyzed using Global Positioning System (GPS) receivers and ionosondes. The rate of change of total electron content (TEC) Index (ROTI), GPS Ionospheric L-band scintillation, the virtual height of the F-layer bottom side (h'F) and the critical frequency of the F2 layer (foF2) are considered. Furthermore, each ionogram is manually examined for the presence of spread-F signatures. The results show that, for the three events studied, geomagnetic activity creates favorable conditions for the initiation of ionospheric irregularities, manifested by ionogram spread-F and TEC fluctuation. Post-midnight irregularities are developed due to the presence of eastward disturbance dynamo electric fields (DDEF). For the storm of May, an eastward over-shielding prompt penetration electric field (PPEF) is also acting. This PPEF is added to the DDEF and produces the uplifting of the F region that helps trigger the irregularities. What is more, during October and November, strong GPS L band scintillation is observed associated with strong range spread-F (SSF), that is, irregularities29 extending from the bottom-side to the topside of the F region.
description: Accepted for publication in "Advances In Space Research" October, 30 2020
Delayed transfer of entanglement to initially populated qubits
Creators: name: Bougouffa, Smail
name: Ficek, Zbigniew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transfer of entangled, quantum correlated, flying photons from a squeezed field to single-mode cavities is investigated. It is shown that, while the transfer of photons begins immediately after the input squeezed field is turned on, the time at which quantum correlations start to be transferred to the cavities is strongly dependent on the initial population of the cavities. For the initially empty cavities, the transfer of quantum correlations begins immediately after the squeezed field is turned on, but it is delayed by a certain time interval when the cavities are initially populated. We find that the transfer of the quantum correlations is postponed until the one-photon states of the system are almost completely depopulated. In other words, the system "waits" for the population of the single-photon states to decay out before starting to build up the quantum correlation between the cavities. The delay time interval is independent of the number of photons initially present in the system, but it is dependent on the decay rates of the cavities and can be varied (controlled) when the cavities decay with different rates. It is shown that the delayed transfer of the quantum correlation is directly related to the presence of quantum jumps, which transfer the population from the entangled to incoherent mixture states.
description: 10 pages, 7 figures
The Thermodynamic Model for Nuclear Multifragmentation
Creators: name: Das, C. B.
name: Gupta, S. Das
name: Lynch, W. G.
name: Mekjian, A. Z.
name: Tsang, M. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A great many observables seen in intermediate energy heavy ion collisions can be explained on the basis of statistical equilibrium. Calculations based on statistical equilibrium can be implemented in microcanonical ensemble (energy and number of particles in the system are kept fixed), canonical ensemble (temperature and number of particles are kept fixed) or grand canonical ensemble (fixed temperature and a variable number of particles but with an assigned average). This paper deals with calculations with canonical ensembles. A recursive relation developed recently allows calculations with arbitrary precision for many nuclear problems. Calculations are done to study the nature of phase transition in intermediate energy heavy ion collision, to study the caloric curves for nuclei and to explore the possibility of negative specific heat because of the finiteness of nuclear systems. The model can also be used for detailed calculations of other observables not connected with phase transitions, such as populations of selected isotopes in a heavy ion collision. The model also serves a pedagogical purpose. For the problems at hand, both the canonical and grand canonical solutions are obtainable with arbitrary accuracy hence we can compare the values of observables obtained from the canonical calculations with those from the grand canonical. Sometimes, very interesting discrepancies are found. To illustrate the predictive power of the model, calculated observables are com$data from the central collisions of Sn isotopes.
description: 60 pages,24 figures, to be published as Physics Report
Algebraic Curve for the SO(6) sector of AdS/CFT
Creators: name: Beisert, N.
name: Kazakov, V. A.
name: Sakai, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We construct the general algebraic curve of degree four solving the classical sigma model on RxS5. Up to two loops it coincides with the algebraic curve for the dual sector of scalar operators in N=4 SYM, also constructed here. We explicitly reproduce some particular solutions.
description: 58 pages, v2: minor changes, references added, v3: "length" identified in sigma model, comparison of curves improved, minor changes, v4: references added, to appear in Commun. Math. Phys
Lower and upper bounds on the secret key rate for QKD protocols using one--way classical communication
Creators: name: Kraus, B.
name: Gisin, N.
name: Renner, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a general class of quantum key distribution (QKD) protocols using one-way classical communication. We show that full security can be proven by considering only collective attacks. We derive computable lower and upper bounds on the secret key rate of those QKD protocol involving only entropies of two--qubit density operators. As an illustration of our results, we determine new bounds for the BB84, the six-state, and the B92 protocol. We show that in all these cases the first classical processing that the legitimate partners should apply consists in adding noise. This is precisely why any entanglement based proof would generally fail here.
description: minor changes, results for BB84 and B92 added
Pierre-François Tordeau de Crupilly
Creators: name: Plouvain, Pierre-Antoine-Samuel-Joseph (1754-1832)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: Officier de justice d'Ancien Régime

description: Source: http://www.sudoc.fr/080675700
description: Coverage: Parlement de Flandre
A Center-Symmetric 1/N Expansion
Creators: name: Schaden, Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The free energy of U(N) gauge theory is expanded about a center-symmetric topological background configuration with vanishing action and vanishing Polyakov loops. We construct this background for SU(N) lattice gauge theory and show that it uniquely describes center-symmetric minimal action orbits in the limit of infinite lattice volume. The leading contribution to the free energy in the 1/N expansion about this background is of O(N^0) rather than O(N^2) as one finds when the center symmetry is spontaneously broken. The contribution of planar 't Hooft diagrams to the free energy is O(1/N^2) and sub-leading in this case. The change in behavior of the diagrammatic expansion is traced to Linde's observation that the usual perturbation series of non-Abelian gauge theories suffers from severe infrared divergences. This infrared problem does not arise in a center-symmetric expansion. The 't Hooft coupling λ=g^2 N is found to decrease proportional to 1/\ln(N) for large N. There is evidence of a vector-ghost in the planar truncation of the model.
description: 27 pages, 2 figures; extended and corrected version with additional material and references
Policy evaluation on the basis of the Farm Accountancy Data Network
Creators: name: Koester, Ulrich
name: Loy, Jens-Peter
name: Koester, Ulrich
name: Loy, Jens-Peter
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
Research Methods/ Statistical Methods

description: According to recital (68) of the preamble to regulation (EU) No. 1306 /2013, ‘Each measure under the CAP should be subject to monitoring and evaluation in order to improve its quality and to demonstrate its achievements.’ This policy brief investigates whether the officially-declared data set for policy evaluation, the Farm Accountancy Data Network (FADN), can be used to assess the impact that direct payments of the Common Agricultural Policy (CAP) actually have on official policy objectives. It is our opinion that FADN data are inadequate to be used in policy evaluation due to the specifics of selection of the sample. First, there is a mismatch between farms that are included in the sample and farms that are entitled to receive direct payments. Second, and possibly even more importantly, the information collected, so-called farm income, does not represent farmers’ actual income. Third, the data are neither consistent in time nor between Member States. This policy brief reports on selected data problems for selected EU countries. The analysis leads to the final conclusion that the present setup of FADN data is inadequate for the data to be used to evaluate EU farm income policy. This conclusion is completely in line with the European Court of Auditors’ Report (European Court of Auditors, 2016).
Investigating The Possible Anomaly Between Nebular and Stellar Oxygen Abundances in the Dwarf Irregular Galaxy WLM
Creators: name: Lee, Henry
name: Skillman, Evan D.
name: Venn, Kim A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained new optical spectra of 13 H II regions in WLM with EFOSC2; oxygen abundances are derived for nine H II regions. The temperature-sensitive [O III] 4363 emission line was measured in two bright H II regions HM7 and HM9. The direct oxygen abundances for HM7 and HM9 are 12+log(O/H) = 7.72 +/- 0.04 and 7.91 +/- 0.04, respectively. We adopt a mean oxygen abundance of 12+log(O/H) = 7.83 +/- 0.06. This corresponds to [O/H] = -0.83 dex, or 15% of the solar value. In H II regions where [O III] 4363 was not measured, oxygen abundances derived with bright-line methods are in general agreement with direct values of the oxygen abundance to an accuracy of about 0.2 dex. In general, the present measurements show that the H II region oxygen abundances agree with previous values in the literature. The nebular oxygen abundances are marginally consistent with the mean stellar magnesium abundance ([Mg/H] = -0.62). However, there is still a 0.62 dex discrepancy in oxygen abundance between the nebular result and the A-type supergiant star WLM15 ([O/H] = -0.21). Non-zero reddening values derived from Balmer line ratios were found in H II regions near a second H I peak. There may be a connection between the location of the second H I peak, regions of higher extinction, and the position of WLM15 on the eastern side of the galaxy.
description: Accepted, Ap.J.; 19 pages (AASTeX 5.2) with 6 figures. Full paper with color figures at http://www.astro.umn.edu/~hlee/
ПРОИЗВОДИТЕЛЬНОСТЬ ТРУДА В СЕЛЬСКОМ ХОЗЯЙСТВЕ И ПРОДОВОЛЬСТВЕННАЯ БЕЗОПАСНОСТЬ (НА МАТЕРИАЛАХ РЕСПУБЛИКИ БАШКОРТОСТАН)
Creators: name: Кузнецова, Альфия
name: Кузнецова, Альфия
Publisher: name: Unknown
Year: 2016
Subjects: Food Security and Poverty
Labor and Human Capital

description: The selected paper presented at the IAMO Samarkand Conference
A place like this : a study of elders’ perceptins (sic) of living in a care home that has adopted the Eden Alternative philosophy of care
Creators: name: Martinez, Angela Anna
Publisher: name: University of British Columbia
Year: 2010

description: Care facilities for elders have been guided by a medical model of care, with a focus on physical conditions. The Eden Alternative (EA) philosophy is being introduced in many facilities in attempt to move beyond the medical model and address psychosocial needs. However, little research exists to demonstrate its impact on the day-to-day lives of the residents living in these facilities. The purpose of this qualitative study was to understand how the EA has influenced the lives of elders in facilities. Data was generated through personal interviews with 9 participants from two facilities that are committed to adopting the philosophy of care. Three dominant ideas emerged from the data in response to the research question. First, the philosophy did influence participants' lives in three meaningful ways: (1) through opportunities for personal choice (2) through opportunities to maintain personal identity and (3) through opportunities for caring. However, the second idea that emerged related to the extent to which the philosophy had infiltrated the day-to-day experience of living in a care facility. Specifically, according to participants' stories, the philosophy's goal of creating a sense of home or community was not yet realized. Finally, the third major idea that emerged was that the presence of two competing societal discourses that both supported and/or competed with the implementation of the Eden Alternative philosophy: life is what you make it and I am old and useless. Recommendations for practice highlight the importance of learning elders' life stories but also recognize that health professionals need to raise questions about our current societal discourses of aging and long-term care and can use the Eden Alternative philosophy to begin to reconstruct discourses that recognize elders as valuable, contributors to our society.
SOME STUDIES ON IDENTIFICATION OF RAAGA USING GAUSSIAN MIXTURE MODEL
Creators: name: Eluri, Ramesh
name: B.Tarakeswara Rao
name: P.Lakshmi Kanth
Publisher: name: figshare
Year: 2020
Subjects: Computer Engineering

description: Raagas are the heart of Indian classical music. Raaga is one of the fundamental musical concepts in Indian music. Raaga plays an important role in Indian classical music. Identification of raaga emotions from speech has gained immense attention recently. With the increasing demand for human computer interaction, it is necessary to understand the raaga emotional state of the singer. In this paper an attempt has been made to recognize and classify the raaga emotions from singers Database. Here the classification is mainly based on extracting several key features like Mel Frequency Cepstral Coefficients (MFCCs) from the speech signals of those persons by using the process of feature extraction. For training and testing of the method, data collection is carried out from singers. It consists of acted speeches of one short raaga, emotionally biased sentence repeated 5 times with different states by 52 melakartha raagas for training and another 10 melakartha raagas for testing. The experiments were performed pertaining to singer raagas. Using a statistical model like Gaussian Mixture Model classifier (GMM) and features extracted from these speech signals. We build a unique identity for each raaga emotion that enrolled for raaga emotion recognition. Expectation and Maximization (EM) algorithm, an elegant and powerful method is used with latent variables for finding the maximum likelihood solution, to test the other raaga emotions against the database of all melakartha raagas in the database.
X-ray Insights Into Interpreting CIV Blueshifts and Optical/UV Continua
Creators: name: Gallagher, S. C.
name: Richards, G. T.
name: Hall, P. B.
name: Brandt, W. N.
name: Schneider, D. P.
name: Berk, D. E. Vanden
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 0.5-8.0 keV Chandra observations of six bright quasars that represent extrema in quasar emission-line properties -- three quasars each with small and large blueshifts of the CIV emission line with respect to the systemic redshift of the quasars. Supplemented with seven archival Chandra observations of quasars that met our selection criteria, we investigate the origin of this emission-line phenomenon in the general context of the structure of quasars. We find that the quasars with the largest CIV blueshifts show evidence, from joint-spectral fitting, for intrinsic X-ray absorption (N_H ~ 10^22 cm^-2). Given the lack of accompanying CIV absorption, this gas is likely to be highly ionized, and may be identified with the shielding gas in the disk-wind paradigm. Furthermore, we find evidence for a correlation of alpha_uv, the ultraviolet spectral index, with the hardness of the X-ray continuum; an analysis of independent Bright Quasar Survey data from the literature supports this conclusion. This result points to intrinsically red quasars having systematically flatter hard X-ray continua without evidence for X-ray absorption. We speculate on the origins of these correlations of X-ray properties with both CIV blueshift and alpha_uv and discuss the implications for models of quasar structure.
description: 9 figs, 25 pages, AASTeX; accepted for publication in AJ
Российские ограничения импорта и их влияниена аграрный сектор стран Кавказа и Центральной Азии
Creators: name: Булатов, Дмитрий
name: Булатов, Дмитрий
Publisher: name: Unknown
Year: 2016
Subjects: International Development
International Relations/Trade

description: The selected paper presented at the IAMO Samarkand Conference