cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
FOOD PRICE VOLATILITY AND CONSUMER PURCHASE PATTERNS POST-FUEL SUBSIDY REMOVAL IN ABIA STATE
Creators: name: Chukwudi, B. Nwosu
Publisher: name: nol
Year: 2024
Subjects: Effect, Fuel Subsidy, Food Prices, Consumer Purchase Behaviour, Market Dynamics

description: To evaluate and better understand the effect of fuel subsidy removal on food prices and consumer purchase behaviour in Abia State: A market dynamics perspective, the study focused on civil servants, lecturers, students, transporters, businesspeople, farmers, and self-employed people who live in Umuahia and Aba metropolitans of Abia State. The study uses both primary and secondary sources of data extensively. Using Topman’s formula, the sample size of 196 respondents was established. With the help of Statistical Package for Social Sciences (SPSS) version 23.0, Ordinal Least Square (OLS) was used to test the presented hypotheses at a 5% level of significance. According to the study, fuel subsidy removal has a significant and positive effect on food prices in Abia State; also, the removal of fuel subsidies has a significant and positive impact on food purchases in Abia State. Again, there is a significant and positive effect of fuel subsidy removal on consumer purchase behaviour in Abia State. In conclusion, the removal of the fuel subsidy has led to higher food prices, which has in turn affected food purchasing and overall consumer purchase behaviour in Abia State. The study recommended that the government and policymakers in Abia State should implement targeted support programs, such as subsidized food vouchers or direct cash transfers, specifically for low-income households to help them manage increased costs while maintaining access to essential items, such as food
Dirac surface states in magnonic analogs of topological crystalline insulators
Creators: name: Kondo, Hiroki
name: Akagi, Yutaka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose magnonic analogs of topological crystalline insulators which possess Dirac surface states protected by the combined symmetry of time-reversal and half translation. Constructing models of the topological magnon systems, we demonstrate that the energy current flows through the systems in response to an electric field, owing to the Dirac surface states with the spin-momentum locking. We also propose a realization of the magnonic analogs of topological crystalline insulators in a magnetic compound CrI$_{3}$ with a monoclinic structure.
Slow-wave effect and mode-profile matching in Photonic Crystal microcavities
Creators: name: Sauvan, C.
name: Lalanne, P.
name: Hugonin, J. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Physical mechanisms involved in the light confinement in photonic crystal slab microcavities are investigated. We first present a full three-dimensional numerical study of these microcavities. Then, to gain physical insight into the confinement mechanisms, we develop a Fabry-Perot model. This model provides accurate predictions and sheds new light on the physics of light confinement. We clearly identify two mechanisms to enhance the Q factor of these microcavities. The first one consists in improving the mode-profile matching at the cavity terminations and the second one in using a slow wave in the cavity.
description: accepted for publication in Phys. Rev. B, 8 pages, 4 figures
Angaria neglecta Poppe & Goto 1993
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Trochida
Angariidae
Angaria
Angaria neglecta

description: neglecta, Angaria Poppe & Goto, 1993
 Angaria neglecta Poppe & Goto, 1993: 22 (pl. 6).
Gastropoda, Angariidae
 Paratype: MZSP 95951.
 Locality: Japan, Wakayama prefecture, Nada-Cho, 510 fms.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. The specimen listed above was initially designated as paratype # 12 in the original description. The senior author (Poppe, pers. comm.) confirmed the type status.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 38, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Induced theta vacua in heavy ion collisions
Creators: name: Buckley, Kirk B. W.
Publisher: name: University of British Columbia
Year: 2009

description: In the following we demonstrate that it is possible to create non-zero θ-states during heavy ion collisions. Using the effective Lagrangian for low energy QCD derived in [1, 2], we will show numerically that in the period immediately following a quench, the chiral condensate phases fa and fa will relax to the value ~ θ /N[sub f]. This is a true condensate in the sense that if the volume of the system is changed, the zero mode still remains. If such a state can be created, it would decay by various mechanisms to the θ[sup fund] = 0 state which exists in our world. We will discuss the experimental signature for the produced non-trivial θ-state. In particular, we will provide evidence that the creation of a non-zero θ -state would result in an excess of low momentum particles (π⁰, ƞ, and ƞ'-mesons) , in the (10 - 100) MeV range. This phenomena could possibly account for the excess of low momentum dileptons observed at CERN [3, 4].
SiO Outflows as Tracers of Massive Star Formation in Infrared Dark Clouds
Creators: name: Liu, Mengyao
name: Tan, Jonathan C.
name: Marvil, Joshua
name: Kong, Shuo
name: Rosero, Viviana
name: Caselli, Paola
name: Cosentino, Giuliana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To study the early phases of massive star formation, we present ALMA observations of SiO(5-4) emission and VLA observations of 6 cm continuum emission towards 32 Infrared Dark Cloud (IRDC) clumps, spatially resolved down to $\lesssim 0.05$ pc. Out of the 32 clumps, we detect SiO emission in 20 clumps, and in 11 of them the SiO emission is relatively strong and likely tracing protostellar outflows. Some SiO outflows are collimated, while others are less ordered. For the six strongest SiO outflows, we estimate basic outflow properties. In our entire sample, where there is SiO emission, we find 1.3 mm continuum and infrared emission nearby, but not vice versa. We build the spectral energy distributions (SEDs) of cores with 1.3 mm continuum emission and fit them with radiative transfer (RT) models. The low luminosities and stellar masses returned by SED fitting suggest these are early stage protostars. We see a slight trend of increasing SiO line luminosity with bolometric luminosity, which suggests more powerful shocks in the vicinity of more massive YSOs. We do not see a clear relation between the SiO luminosity and the evolutionary stage indicated by $L/M$. We conclude that as a protostar approaches a bolometric luminosity of $\sim 10^2 \: L_{\odot}$, the shocks in the outflow are generally strong enough to form SiO emission. The VLA 6 cm observations toward the 15 clumps with the strongest SiO emission detect emission in four clumps, which is likely shock ionized jets associated with the more massive ones of these protostellar cores.
description: 42 pages, 18 figures, accepted to ApJ
Intercomparison of the northern hemisphere winter mid-latitude atmospheric variability of the IPCC models
Creators: name: Lucarini, Valerio
name: Calmanti, Sandro
name: Dell'Aquila, Alessandro
name: Ruti, Paolo M.
name: Speranza, Antonio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We compare, for the overlapping time frame 1962-2000, the estimate of the northern hemisphere (NH) mid-latitude winter atmospheric variability within the XX century simulations of 17 global climate models (GCMs) included in the IPCC-4AR with the NCEP and ECMWF reanalyses. We compute the Hayashi spectra of the 500hPa geopotential height fields and introduce an integral measure of the variability observed in the NH on different spectral sub-domains. Only two high-resolution GCMs have a good agreement with reanalyses. Large biases, in most cases larger than 20%, are found between the wave climatologies of most GCMs and the reanalyses, with a relative span of around 50%. The travelling baroclinic waves are usually overestimated, while the planetary waves are usually underestimated, in agreement with previous studies performed on global weather forecasting models. When comparing the results of various versions of similar GCMs, it is clear that in some cases the vertical resolution of the atmosphere and, somewhat unexpectedly, of the adopted ocean model seem to be critical in determining the agreement with the reanalyses. The GCMs ensemble is biased with respect to the reanalyses but is comparable to the best 5 GCMs. This study suggests serious caveats with respect to the ability of most of the presently available GCMs in representing the statistics of the global scale atmospheric dynamics of the present climate and, a fortiori, in the perspective of modelling climate change.
description: 39 pages, 8 figures, 2 tables
Steeriana nivea Nordsieck 2005
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Clausiliidae
Steeriana
Steeriana nivea

description: nivea, Steeriana Nordsieck, 2005
 Steeriana nivea Nordsieck, 2005b: 211 (fig. 16).
Gastropoda, Clausiliidae
 Paratype: MZSP 95479 (Fig. 6 G–H).
 Locality: Peru, La Libertad Department, c. 25 km from Cajabamba to Huamachuco, c. 3200 m altitude (type locality), 4 Apr. 2012.
 Collector: J. Hemmen.
 Preservation: Dry.
 Remarks: Former Jens Hemmen Collection. The specimen listed above is a remainder of a 21-specimen paratype lot deposited by Nordsieck in Hemmen’s collection.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on pages 38-39, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
Local Measures of Entanglement and Critical Exponents at Quantum Phase Transitions
Creators: name: Venuti, L. Campos
name: Boschi, C. Degli Esposti
name: Morandi, G.
name: Roncaglia, M.
name: Scaramucci, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We discuss on general grounds some local indicators of entanglement, that have been proposed recently for the study and classification of quantum phase transitions. In particular, we focus on the capability of entanglement in detecting quantum critical points and related exponents. We show that the singularities observed in all local measures of entanglement are a consequence of the scaling hypothesis. In particular, as every non-trivial local observable is expected to be singular at criticality, we single out the most relevant one (in the renormalization group sense) as the best-suited for finite-size scaling analysis. The proposed method is checked on a couple of one-dimensional spin systems. The present analysis shows that the singular behaviour of local measures of entanglement is fully encompassed in the usual statistical mechanics framework.
description: 5 pages, 2 eps figures. Abstract replaced, minor changes in the text
MODELING AGRICULTURAL TRADE LIBERALIZATION AND ITS IMPLICATIONS FOR THE EUROPEAN UNION
Creators: name: Anania, Giovanni
name: Anania, Giovanni
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: The paper reviews the models used in the past 10 years or so to analyze the expected effects of liberalizing agricultural trade with specific reference to the implications for agriculture and agricultural policies in the European Union. Its main aim is to provide the reader with an overview of models which have been used to assess, first, during the Uruguay Round, the implications of alternative hypothetical trade liberalization scenarios, then, the Agreement itself, and, more recently, the implications of further steps in liberalizing agricultural markets as a result of the on-going WTO negotiations. The conclusion is that the efforts to model agricultural trade and trade policies, taken as a whole, are not fully satisfactory. Although there are several models which offer accurate representations of international agricultural markets and trade policies, there are many others, including several developed and used by governments and relevant multilateral institutions, which are structurally incapable of providing reliable answers to certain policy questions they are posed. The final part of the paper identifies priorities for actions to be taken in order to improve modeling of trade policies and WTO commitments.
Provable entanglement and information cost for qubit-based quantum key-distribution protocols
Creators: name: Nikolopoulos, G. M.
name: Khalique, A.
name: Alber, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Provable entanglement has been shown to be a necessary precondition for unconditionally secure key generation in the context of quantum cryptographic protocols. We estimate the maximal threshold disturbance up to which the two legitimate users can prove the presence of quantum correlations in their data, in the context of the four- and six-state quantum key-distribution protocols, under the assumption of coherent attacks. Moreover, we investigate the conditions under which an eavesdropper can saturate these bounds, by means of incoherent and two-qubit coherent attacks. A direct connection between entanglement distillation and classical advantage distillation is also presented.
description: Published online in Eur. Phys. J. D
RURAL DEVELOPMENT POLICIES AND NON TRADE CONCERNS: THE CASE OF ITALY
Creators: name: Gatto, Emilio
name: Henke, Roberto
name: Velazquez, Beatriz E.
name: Gatto, Emilio
name: Henke, Roberto
name: Velazquez, Beatriz E.
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development

description: The set of policy tools that the EU puts under the heading of Rural Development is extremely heterogeneous and brings out the need to discuss the actual consistency of such tools with the EU position on NTCs in WTO negotiations. Examined in the present work are the Rural Development Plans (RDPs) and the Regional Operational Programmes (ROPs) recently approved by the European Commission for the Italian Regions. The analysis is of a purely qualitative type and is based on currently available information, that is, the measures and the relative project typologies approved within the Plans. Taking into account the EU position on NTCs and their relationship with multifunctionality, we look at the policy instruments for Rural Development applied in Italy with respect to their effects on production, production of externalities/non tradables and consistency with the EU position on NTCs. Financial allotment by measure typology is also examined. We found out that the present set of actions that fall under Rural Development is still dominated by a sectoral approach, even in the case of measures aimed at safeguarding the environment. Paradoxically, a modest share of financial resources are allocated to measures aimed at the promotion of rural development and training, that better respond to the NTC objectives.
Kollaborative Anreicherung der Metadatenallmende zur Förderung eines diversen Open-Access-Ökosystems (KOMET) - Vortrag im Rahmen der Vernetzungsveranstaltung Kultur Open Access 2024
Creators: name: Hauschke, Christian
name: Aydin, Zeynep
name: Yücel, Gazi
name: Nüst, Daniel
name: Niers, Tom
Publisher: name: Zenodo
Year: 2024

description: Präsentation des KOMET Forschungsvorhabens gehalten im Rahmen einer Vernetzungsveranstaltung im Oktober 2024 zur BMBF Förderlinie für eine gelebte Open Access-Kultur.
Early-type stars observed in the ESO UVES Paranal Observatory Project: I -- Interstellar Na I UV, Ti II and Ca II K observations
Creators: name: Hunter, I.
name: Smoker, J. V.
name: Keenan, F. P.
name: Ledoux, C.
name: Jehin, E.
name: Cabanac, R.
name: Melo, C.
name: Bagnulo, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of interstellar Na I (lambda=3302.37Å, 3302.98Å), Ti II (lambda=3383.76Å) and Ca II K (lambda=3933.66Å) absorption features for 74 sightlines towards O- and B-type stars in the Galactic disc. The data were obtained from the UVES Paranal Observatory Project, at a spectral resolution of 3.75km/s and with mean signal to noise ratios per pixel of 260, 300 and 430 for the Na I, Ti II and Ca II observations, respectively. Interstellar features were detected in all but one of the Ti II sightlines and all of the Ca II sightlines. The dependence of the column density of these three species with distance, height relative to the Galactic plane, H I column density, reddening and depletion relative to the solar abundance has been investigated. We also examine the accuracy of using the Na I column density as an indicator of that for H I. In general we find similar strong correlations for both Ti and Ca, and weaker correlations for Na. Our results confirm the general belief that Ti and Ca occur in the same regions of the interstellar medium and also that the Ti II/Ca II ratio is constant over all parameters. We hence conclude that the absorption properties of Ti and Ca are essentially constant under the general interstellar medium conditions of the Galactic disc.
description: Accepted by MNRAS, 36 pages, 14 figures
FROM THE FIRST TO THE SECOND PILLAR OF CAP: HYPOTHESES OF DIRECT AID MODULATION IN ITALY
Creators: name: Henke, Roberto
name: Sardone, Roberta
name: Henke, Roberto
name: Sardone, Roberta
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural and Food Policy

description: The paper focuses on the implementation of direct aids modulation, as provided for by Regulation 1259/99. After a critical review of the most relevant questions arisen around the effectiveness and the viability of modulation, the paper presents results about its possible application in Italy. In the first part of the paper a special attention is given to the actual distribution of direct aids in Italy, to the number of farms involved and the amount of revenues realised. In the second part four different hypotheses of modulation are tested. In order to evaluate the effectiveness of modulation revenues under the four different hypotheses are compared with the financial resources allotted in Italy to the regional Rural Development Plans (RDPs). While results of modulation are, generally speaking, quite poor in terms of re-distribution of direct aids, there is a more relevant effect in terms of additional resources destined to the RDPs. However, resources are to be destined to measures that receive the highest share of resources within the RDPs. On the contrary, other measures, more genuinely addressing Rural Development and territorial issues within the RDPs, receive a much smaller amount of resources and cannot be funded through modulation. In other words, if the main objective of the modulation is that of shifting resources from the first to the second pillar of the CAP, this is only partially realised, given the mandatory destination of financial resources on measures that are substantially financed and that do not fully address the economic diversification and the development of rural areas.
Bulk Photovoltaic Effect Driven by Collective Excitations in a Correlated Insulator
Creators: name: Kaneko, Tatsuya
name: Sun, Zhiyuan
name: Murakami, Yuta
name: Golež, Denis
name: Millis, Andrew J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the bulk photovoltaic effect, which rectifies light into electric current, in a collective quantum state with correlation driven electronic ferroelectricity. We show via explicit real-time dynamical calculations that the effect of the applied electric field on the electronic order parameter leads to a strong enhancement of the bulk photovoltaic effect relative to the values obtained in a conventional insulator. The enhancements include both resonant enhancements at sub-band-gap frequencies, arising from excitation of optically active collective modes, and broadband enhancements arising from nonresonant deformations of the electronic order. The deformable electronic order parameter produces an injection current contribution to the bulk photovoltaic effect that is entirely absent in a rigid-band approximation to a time-reversal symmetric material. Our findings establish that correlation effects can lead to the bulk photovoltaic effect and demonstrate that the collective behavior of ordered states can yield large nonlinear optical responses.
description: 20 pages, 11 figures
Solemya notialis Simone 2009
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Solemyoida
Solemyidae
Solemya
Solemya notialis

description: notialis, Oscilla Pimenta, Santos & Absalão, 2008
 Oscilla notialis Pimenta, Santos & Absalão, 2008: 175–176 (fig. 2A–F).
Gastropoda, Pyramidellidae
 Paratype 1: MZSP 86787.
 Paratypes 2 (5 spc): MZSP 86788.
 Paratypes 3 (2 spc): MZSP 86790.
 Paratypes 4 (5 spc): MZSP 86791.
 Paratypes 5 (29 spc): MZSP 86792.
 Paratype 6: MZSP 86793.
 Paratypes 7 (14 spc): MZSP 86794.
 Paratypes 8 (2 spc): MZSP 86795.
 Paratypes 9 (9 spc): MZSP 86798.
 Paratypes 10 (11 spc): MZSP 86799.
 Paratype 11: MZSP 86800.
 Paratype 12: MZSP 86801.
 Localities: Brazil; 1) off São Paulo, 24°.42.608' S, 44°43.419' W, PADCT sta. 6573, 155 m depth; 2) 26°15' S, 45°53' W, PADCT sta. 6541, 130 m; 3) 25°46' S, 45°28.8' W, PADCT sta. 6631, 164 m; 4) off Rio de Janeiro, 21°51.6' S, 47°42' W, PADCT sta. 6617, 327 m; 5) off São Paulo, 24°12.74' S, 44°58.98' W, PADCT sta. 6571, 79 m; 6) off Santa Catarina, 27°48.07' S, 47°24.04' W, PADCT sta. 6606, 175 m depth; 7) off São Paulo, 25°15.76' S, 45°04.62' W, PADCT sta. 6577, 124 m; 8) off Santa Catarina, 27°10.38' S, 47°27.54' W, PADCT sta. 6635, 129 m; 9) 26°23.55' S, 46°39.49' W, PADCT sta. 6595, 175 m; 10) off São Paulo, 24°00.95' S, 43°55.54' W, REVIZEE sta. 6662, 135 m; 11) 24°17.13' S, 44°12.15' W, REVIZEE sta. 666, 163 m; 12) off Santa Catarina, 26°15' S, 45°53' W, PADCT sta. 6641, 153 m.
 Collector: R/V W. Besnard.
 Preservation: Dry.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 39, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
THE COMMON AGRICULTURAL POLICY IN ECONOMETRIC MODELS
Creators: name: Sckokai, Paolo
name: Sckokai, Paolo
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Research Methods/ Statistical Methods

description: The paper reviews the econometric models used in the past 10 years to analyse the most widely used agricultural policy instruments. The main aim of the paper is to provide the reader with an overview of these models, analysing the technical solutions adopted, the type of results that can be obtained, as well as their potential for simulation exercises. The conclusion reached is that the contribution of econometric models to the analysis of the CAP has been significant, especially from the point of view of modelling the main policy instruments according to their theoretical impact on farmers' behaviour. However, many problems have still to be overcome. For this reason, in the concluding section, the paper tries to identify a number of priorities for further research.
Observing the Profile of an Atom Laser Beam
Creators: name: Köhl, M.
name: Busch, Th.
name: Molmer, K.
name: Hänsch, T. W.
name: Esslinger, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on an investigation of the beam profile of an atom laser extracted from a magnetically trapped $^{87}$Rb Bose-Einstein condensate. The transverse momentum distribution is magnified by a curved mirror for matter waves and a momentum resolution of 1/60 of a photon recoil is obtained. We find the transverse momentum distribution to be determined by the mean-field potential of the residing condensate, which leads to a non-smooth transverse density distribution. Our experimental data are compared with a full 3D simulation of the output coupling process and we find good agreement.
description: 4 pages, 4 figures
Lensing magnification: gravitational waves from coalescing stellar-mass binary black holes
Creators: name: Shan, Xikai
name: Wei, Chengliang
name: Hu, Bin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves (GWs) may be magnified or de-magnified due to lensing. This phenomenon will bias the distance estimation based on the matched filtering technique. Via the multi-sphere ray-tracing technique, we study the GW magnification effect and selection effect with particular attention to the stellar-mass binary black holes (BBHs). We find that, for the observed luminosity distance $\lesssim 3~\mathrm{Gpc}$, which is the aLIGO/Virgo observational horizon limit, the average magnification keeps as unity, namely unbiased estimation, with the relative distance uncertainty $σ(\hat{d})/\hat{d}\simeq0.5\%\sim1\%$. Beyond this observational horizon, the estimation bias can not be ignored, and with the scatters $σ(\hat{d})/\hat{d} = 1\%\sim 15\%$. Furthermore, we forecast these numbers for Einstein Telescope. We find that the average magnification keeps closely as unity for the observed luminosity distance $\lesssim 90~\mathrm{Gpc}$. The luminosity distance estimation error due to lensing for Einstein Telescope is about $σ(\hat{d})/\hat{d} \simeq 10\%$ for the luminosity distance $\gtrsim 25~\mathrm{Gpc}$. Unlike the aLIGO/Virgo case, this sizable error is not due to the selection effect. It purely comes from the unavoidably accumulated lensing magnification. Moreover, we investigated the effects of the orientation angle and the BH mass distribution models. We found that the results are strongly dependent on these two components.
description: 9 pages, 9 figures, published in MNRAS
THE EFFECTS OF ALTERNATIVE PROPOSALS ON EXPORT SUBSIDIES TO AGRICULTURAL PRODUCTS IN THE CURRENT WTO ROUND
Creators: name: Conforti, Piero
name: Velazquez, Beatriz E.
name: Conforti, Piero
name: Velazquez, Beatriz E.
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: The paper is aimed at assessing the impact of reducing and/or eliminating EU export subsidies within the next WTO round. The Global Trade Analysis Project (GTAP) model and database are employed to study the effects of the two main proposals put forward in the Doha Round on this matter by the EU and the US. Results of the simulations confirm the common knowledge that the elimination of EU export subsidies would imply increasing prices, exports and production for several net exporters of agricultural products. At the same time, such effects are all relatively small in size, particularly on trade, production and welfare, even under the more radical scenario that simulates the elimination of export subsidies. Despite some net importing countries would suffer from a more expensive import bills, benefits may arise for some of them in terms of incentives to substitute imports with domestic production. This is the case of the Mediterranean region, and to a lower extent of Sub Saharan Africa.
Theoretical and numerical analysis for a hybrid tumor model with diffusion depending on vasculature
Creators: name: Fernández-Romero, A.
name: Guillén-González, F.
name: Suárez, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35A01, 35B40, 35M10, 35Q92, 47J35, 92B05

description: In this work we analyse a PDE-ODE problem modelling the evolution of a Glioblastoma, which includes an anisotropic nonlinear diffusion term with a diffusion velocity increasing with respect to vasculature. First, we prove the existence of global in time weak-strong solutions using a regularization technique via an artificial diffusion in the ODE-system and a fixed point argument. In addition, stability results of the critical points are given under some constraints on parameters. Finally, we design a fully discrete finite element scheme for the model which preserves the pointwise and energy estimates of the continuous problem.
description: 28 pages, 5 figures
Reduction of Vaisman structures in complex and quaternionic geometry
Creators: name: Gini, Rosa
name: Ornea, Liviu
name: Parton, Maurizio
name: Piccinni, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53C55, 53C25, 53D20

description: We consider locally conformal Kaehler geometry as an equivariant (homothetic) Kaehler geometry: a locally conformal Kaehler manifold is, up to equivalence, a pair (K,Γ) where K is a Kaehler manifold and Γa discrete Lie group of biholomorphic homotheties acting freely and properly discontinuously. We define a new invariant of a locally conformal Kaehler manifold (K,Γ) as the rank of a natural quotient of Γ, and prove its invariance under reduction. This equivariant point of view leads to a proof that locally conformal Kaehler reduction of compact Vaisman manifolds produces Vaisman manifolds and is equivalent to a Sasakian reduction. Moreover we define locally conformal hyperkaehler reduction as an equivariant version of hyperkaehler reduction and in the compact case we show its equivalence with 3-Sasakian reduction. Finally we show that locally conformal hyperkaehler reduction induces hyperkaehler with torsion (HKT) reduction of the associated HKT structure and the two reductions are compatible, even though not every HKT reduction comes from a locally conformal hyperkaehler reduction.
description: 29 pages; Section 4 changed (and accordingly the Introduction); Remark 8.2 added; References updated
THE MID-TERM REVIEW OF THE COMMON AGRICULTURAL POLICY: ASSESSING THE EFFECTS OF THE COMMISSION PROPOSALS
Creators: name: Conforti, Piero
name: De Filippis, Fabrizio
name: Salvatici, Luca
name: Conforti, Piero
name: De Filippis, Fabrizio
name: Salvatici, Luca
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural and Food Policy

description: The paper is aimed at assessing the effects of the reforms proposed by the European Commission in July 2002 for the Mid Term Review (MTR) of Agenda 2000. The proposals are described in the framework of the long standing CAP reform process driven by political priorities such as the enlargement to the Central and Eastern European countries, the budget issues, and the ongoing WTO negotiations. The most important measures proposed are the full decoupling of direct payments, the modulation of direct payments, and changes in the support regimes for cereals and rice. Altogether, the proposals for the MTR appear substantial, especially considering the conservative attitude of the EU decision-making process. The Applied General Equilibrium model provided by the Global Trade Analysis Project was employed to simulate the effects of the MTR. Scenarios were designed to highlight especially the impact of the full decoupling and the modulation of direct payments. The Eastward enlargement of the EU was also introduced; in this case, direct payments were calculated starting from the financial perspectives indicated by the Commission after the Brussels Council. Results indicate that the full decoupling of direct payments is by far the most significant change proposed, whereas both the changes in the CMOs and the payment modulation appear to have a more limited impact.
Equivariant Localization for Supersymmetric Quantum Mechanics
Creators: name: Akant, Levent
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply equivariant localization to supersymmetric quantum mechanics and show that the partition function localizes on the instantons of the theory. Our construction of equivariant cohomology for SUSY quantum mechanics is different than the ones that already exist in the literature. A hidden bosonic symmetry is made explicit and the supersymmetry is extended. New bosonic symmetry is the square of the new fermionic symmetry. The D term is now the parameter of the bosonic symmetry. This construction provides us with an equivariant complex together with a Cartan differential and makes the use of localization principle possible.
description: 16 pages, no figures; corrected references and typos
Theory of emission from an active photonic lattice
Creators: name: Chow, Weng W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The emission from a radiating source embedded in a photonic lattice is calculated. The analysis considers the photonic lattice and free space as a combined system. Furthermore, the radiating source and electromagnetic field are quantized. Results show the deviation of the photonic lattice spectrum from the blackbody distribution, with intracavity emission suppressed at certain frequencies and enhanced at others. In the presence of rapid population relaxation, where the photonic lattice and blackbody populations are described by the same equilibrium distribution, it is found that the enhancement does not result in output intensity exceeding that of the blackbody at the same frequency. However, for slow population relaxation, the photonic lattice population has a greater tendency to deviate from thermal equilibrium, resulting in output intensities exceeding those of the blackbody, even for identically pumped structures.
description: 19 pages, 11 figures
Prefigurative Remembrance: Archiving as Activist Mnemonic Practice
Creators: name: Rigney, Ann
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 470207
subject: Cultural theory
classificationCode: 470208
subject: Culture, representation and identity

description: This article explores the role of archives and archiving in the memory–activism nexus with reference to the various ‘movements of the squares’ that started in 2011. The Egyptian Uprising, 15M, Occupy Wall Street, the Gezi Uprising and Nuit Debout each made concerted efforts to ensure their future remembrance by laying down an archive in which their actions and aspirations were ‘sedimented’. The article explores the crossover between the prospective and retrospective orientations of this activist memory work. It argues that there is an affinity between the affordances of archives as a mnemonic medium and the movements’ ‘politics of prefiguration’, both because the participatory character of the archiving is already an exercise in radical democracy and because an archive provides not a single narrative with a prescribed meaning but a resource for future meaning-making by others.
Set coherence: basis-independent quantification of quantum coherence
Creators: name: Designolle, Sébastien
name: Uola, Roope
name: Luoma, Kimmo
name: Brunner, Nicolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The coherence of an individual quantum state can be meaningfully discussed only when referring to a preferred basis. This arbitrariness can however be lifted when considering sets of quantum states. Here we introduce the concept of set coherence for characterising the coherence of a set of quantum systems in a basis-independent way. We construct measures for quantifying set coherence of sets of quantum states as well as quantum measurements. These measures feature an operational meaning in terms of discrimination games and capture precisely the advantage offered by a given set over incoherent ones. Along the way, we also connect the notion of set coherence to various resource-theoretic approaches recently developed for quantum systems.
description: 10 pages
COASTAL ALABAMA RECREATIONAL LIVE BAIT STUDY
Creators: name: Wallace, R.K.
name: Hanson, Terrill R.
name: Hatch, L. Upton
name: Wallace, R.K.
name: Hanson, Terrill R.
name: Hatch, L. Upton
Publisher: name: Unknown
Year: 2004
Subjects: Resource /Energy Economics and Policy

description: Recreational fishing is major industry and reasonably priced, high quality bait plays an important role in sustaining recreational fishing's popularity. This study provides a summary of Alabama's coastal live bait market including information on previous live bait studies and results of two surveys on the live bait shrimp, bull minnow and other bait markets. Results indicated there were periods of supply shortages, dealer willingness to pay more for shrimp that live longer and a dealers' use of multiple supply sources. Lost income was reported from not having live bait shrimp available for sale at peak demand periods. The economics of shrimp mariculture needs to be examined to determine its feasibility in augmenting the current supply of shrimp to the live bait industry.
Effect of inelastic scattering on spin entanglement detection through current noise
Creators: name: San-Jose, Pablo
name: Prada, Elsa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effect of inelastic scattering on the spin entanglement detection and discrimination scheme proposed by Egues, Burkard, and Loss [Phys. Rev. Lett. \textbf{89}, 176401 (2002)]. The finite-backscattering beam splitter geometry is supplemented by a phenomenological model for inelastic scattering, the charge-conserving voltage probe model, conveniently generalized to deal with entangled states. We find that the behavior of shot-noise measurements in one of the outgoing leads remains an efficient way to characterize the nature of the non-local spin correlations in the incoming currents for an inelastic scattering probability up to 50%. Higher order cumulants are analyzed, and are found to contain no additional useful information on the spin correlations. The technique we have developed is applicable to a wide range of systems with voltage probes and spin correlations.
description: 14 pages, 6 figures, updated with published version (appendix added)
THE POTENTIAL VIABILITY OF BIOMASS ETHANOL AS A RENEWABLE FUEL SOURCE: A DISCUSSION
Creators: name: Nalley, Lawton Lanier
name: Hudson, Darren
name: Nalley, Lawton Lanier
name: Hudson, Darren
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: Much attention has been paid to alternative fuel sources of late. Ethanol has been a politically popular alternative fuel additive and has recently been pushed to the forefront as a leading replacement to MTBE as an oxygenate. This paper examines the potential markets for ethanol, including biomass ethanol, and discusses the strengths and weaknesses of different oxygenate products. We find that the market for ethanol is tenuous and dependent on government support at this time. Biomass ethanol is more expensive to produce, but does have the advantage of being able to be produced near petroleum refineries, thus reducing transport costs, compared to other sources of ethanol.
SALES FORCE ENHANCEMENT AND ITS EFFECTS ON SME PERFORMANCE IN DELTA STATE
Creators: name: Olufunmilayo, S. Adebayo
name: Chinedu, I. Okwuosa
Publisher: name: no
Year: 2024

description: Globalization has altered the way organizations conduct their businesses and made competition more pronounced, and technology is constantly becoming more advanced, particularly in the area of retail business. The main objective of this study examined performance influence and sales force enhancement of selected retail outlets in Delta State. The specific objectives were first, to examine the effect of coaching on sales force enhancement of selected retail outlets in Delta State and second, to determine the effect of commission base pay on sales force enhancement of selected retail outlets in Delta State. The quantitative research method which utilized a cross-sectional survey research design was adopted in the study. The population of the study comprises 131 of owners of selected retail outlets across major cities in Delta State. Using Krejcie and Morgan’s (1970) table for determining sample size, the sample size of 97 was obtained. Questionnaire was administered on the 97 respondents and 89 were correctly filled and returned. The value of the reliability test was 0.942, which was determined using Cronbach’s alpha. Survey was adopted for the study and data were analyzed using Pearson’s Product Moment Correlation Coefficient. Findings revealed that coaching has a significant positive effect on sales force. Also, it was revealed that commission based pay has a significant effect on sales force performance and  it was revealed that career advancement opportunity  has significant effect on sales force performance. Although salesmen are born, adequate coaching is highly accentuated among sales managers. Such coaching is necessary to enable the sales force gather enough and important knowledge and experience needed to distribute quality service delivery national and international borders.

Therefore, both coaching and commission based pay programmes should be conducted for the sales force to improve performance
ESTIMATED COSTS, YIELDS, AND RETURNS ASSOCIATED WITH 8-ROW SOLID AND 12-ROW SKIP-ROW COTTON PRODUCTION SYSTEMS: A CASE STUDY
Creators: name: Parvin, David W.
name: Cooke, Fred T.
name: Stephens, J.D.
name: Parvin, David W.
name: Cooke, Fred T.
name: Stephens, J.D.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Production Economics
subject: cotton
subject: equipment width
subject: skip-row

description: Cotton production systems based on wider equipment are more efficient (cost less per acre). They improve net returns if yield can be maintained or the value of the yield reduction (which may or may not occur depending upon planting pattern and soil type) is less than the reduction in cost of production (which will occur).
Kernel Smoothing, Mean Shift, and Their Learning Theory with Directional Data
Creators: name: Zhang, Yikun
name: Chen, Yen-Chi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Directional data consist of observations distributed on a (hyper)sphere, and appear in many applied fields, such as astronomy, ecology, and environmental science. This paper studies both statistical and computational problems of kernel smoothing for directional data. We generalize the classical mean shift algorithm to directional data, which allows us to identify local modes of the directional kernel density estimator (KDE). The statistical convergence rates of the directional KDE and its derivatives are derived, and the problem of mode estimation is examined. We also prove the ascending property of the directional mean shift algorithm and investigate a general problem of gradient ascent on the unit hypersphere. To demonstrate the applicability of the algorithm, we evaluate it as a mode clustering method on both simulated and real-world data sets.
description: 92 pages, 11 figures. Accepted to the Journal of Machine Learning Research
Oscilla notialis Pimenta, Santos & Absalao 2008
Creators: name: Cavallari, Daniel C.
name: Dornellas, Ana Paula S.
name: Simone, Luiz Ricardo L.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Solemyoida
Pyramidellidae
Oscilla
Oscilla notialis

description: notialis, Solemya Simone, 2009
 Solemya notialis Simone, 2009: 423–434 (figs 39–46, 111–117).
Bivalvia, Solemyidae
 Holotype: MZSP 88440.
 Paratype: MZSP 20935.
 Paratypes 1 (2 spc): MZSP 20936.
 Paratype 2: MZSP 20937.
 Paratype 3: MZSP 35257.
 Localities: Brazil, São Paulo, off Ubatuba, sta. 12, 23°25'S, 44°43'W, 33.5 m depth (type locality), 17 Dec. 1965; 1) Rio de Janeiro, Angra dos Reis, sta 53, 31 m, 29 Jun. 1966; 2) sta. 54, 27 m, 29 Jun. 1966; 3) Cabo Frio, May 2002.
 Collectors: R/V Emilia; 3) P. Gonçalves.
 Preservation: Dry and 70% ethanol.
description: Published as part of Cavallari, Daniel C., Dornellas, Ana Paula S. & Simone, Luiz Ricardo L., 2016, Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-59 in European Journal of Taxonomy 213 on page 39, DOI: 10.5852/ejt.2016.213, http://zenodo.org/record/3840125
On the Perturbative Quantization of Einstein-Hilbert Gravity Embedded in a Higher Derivative Model
Creators: name: Pottel, Steffen
name: Sibold, Klaus
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a perturbative approach Einstein-Hilbert gravity is quantized about a flat background. In order to render the model power counting renormalizable, higher order curvature terms are added to the action. They serve as Pauli-Villars type regulators and require an expansion in the number of fields in addition to the standard expansion in the number of loops. Renormalization is then performed within the BPHZL scheme, which provides the action principle to construct the Slavnov-Taylor identity and invariant differential operators. The final physical state space of the Einstein-Hilbert theory is realized via the quartet mechanism of Kugo and Ojima. Renormalization group and Callan-Symanzik equation are derived for the Green functions and, formally, also for the $S$-matrix.
description: 58 pages; v2: minor edits, some comments and references added; v3: correction of Sec. 7