cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Compensação e Incentivo à Proteção Ambiental: o caso do ICMS Ecológico em Minas Gerais
Creators: name: Fernandes, Luciany Lima
name: Coelho, Alexandre Bragança
name: Fernandes, Elaine Aparecida
name: Lima, Joao Eustaquio De
name: Fernandes, Luciany Lima
name: Coelho, Alexandre Bragança
name: Fernandes, Elaine Aparecida
name: Lima, Joao Eustaquio De
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Ecological ICMS
subject: Minas Gerais
subject: Panel Data Model
subject: Conservation Units.

description: The Ecological ICMS was first used to distribute a share of the ICMS revenue in the Paraná state in 1991. This pioneer experience originated from counties’ claims which argued that their economies were harmed by land use restrictions, mainly because they were watershed protection areas or their territory was part of a conservation unit. Responding to these claims, the state government changed the ICMS allocation criteria, favoring those counties with added funds. In the Minas Gerais state, the Ecological ICMS was implemented in 1995 with the “Robin Hood Law”. The objective of this study was to evaluate the Ecological ICMS in Minas Gerais as an instrument for compensation and incentive. Production and preservation indexes were calculated for all Minas Gerais counties and a panel data model was used to verify the relationship between the amount of Ecological ICMS received and the protected area in each county. Results showed the creation of a conservation unit would compensate most of Minas Gerais counties because of the Ecological ICMS, although the attractiveness of the conservation option has been declining systematically over the years. Regarding the incentive effect of the Ecological ICMS, results showed that the Ecological ICMS really compensates and incentives Minas Gerais counties to preserve the environment because there is a direct relationship between the amount received from the Ecological ICMS and the growth of protected areas in Minas Gerais counties.
Role of Marcellina in "The Marriage of Figaro"
Creators: name: Lowry, Milo Marie
Publisher: name: University of British Columbia
Year: 2010

description: The thesis for the Master of Music degree in Opera consists of the performance of a major role in one full opera production in the first or second year. My major role in one full opera production was Marcellina performed in The Marriage of Figaro on March 2nd and 4th 2006.
Ethnographische Forschungsdaten – eine Verantwortung!
Creators: name: Kramreither, Birgit
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Bibliothek
subject: Dekolonisierung
subject: library
subject: decolonization
subject: 020 Bibliotheks- und Informationswissenschaften

description: Die Geschichte des Fachs Kultur- und Sozialanthropologie in Wien spiegelt sich im Literaturbestand der Fachbereichsbibliothek Kultur- und Sozialanthropologie wider. Aus heutiger Sicht muss mit ethnographischem Datenmaterial zum Schutz der Beforschten sehr sorgsam umgegangen werden. Die Verantwortung darüber liegt nicht zuletzt bei Repositorien, Archiven und Bibliotheken.
Noise Statistics in Optically Pre-Amplified DPSK Receivers with Optical Mach-Zehnder Interferometer Demodulation
Creators: name: Zhang, Xiupu
name: Qu, Zhenqian
name: Zhang, Guodong
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This paper presents for the first time a comprehensive study of noise statistics by use pdf.
description: 12 pages
Tuning the quantumness of simple Bose systems: A universal phase diagram
Creators: name: Kora, Youssef
name: Boninsegni, Massimo
name: Son, Dam Thanh
name: Zhang, Shiwei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a comprehensive theoretical study of the phase diagram of a system of many Bose particles interacting with a two-body central potential of the so-called Lennard-Jones form. First-principles path-integral computations are carried out, providing essentially exact numerical results on the thermodynamic properties. The theoretical model used here provides a realistic and remarkably general framework for describing simple Bose systems ranging from crystals to normal fluids to superfluids and gases. The interplay between particle interactions on the one hand, quantum indistinguishability and delocalization on the other, is characterized by a single quantumness parameter, which can be tuned to engineer and explore different regimes. Taking advantage of the rare combination of the versatility of the many-body Hamiltonian and the possibility for exact computations, we systematically investigate the phases of the systems as a function of pressure (P) and temperature (T), as well as the quantumness parameter. We show how the topology of the phase diagram evolves from the known case of He-4, as the system is made more (and less) quantum, and compare our predictions with available results from mean-field theory. Possible realization and observation of the phases and physical regimes predicted here are discussed in various experimental systems, including hypothetical muonic matter.
description: 7 pages, 7 figures
Determinantes da Demanda Brasileira por Importação de Arroz do Mercosul
Creators: name: Capitani, Daniel Henrique Dario
name: Miranda, Sílvia Helena Galvão De
name: Martines-Filho, Joao Gomes
name: Capitani, Daniel Henrique Dario
name: Miranda, Sílvia Helena Galvão De
name: Martines-Filho, Joao Gomes
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Rice
subject: demand
subject: imports
subject: Mercosur
subject: VAR.

description: Since the middle of the 90’s, rice has been one of the main agricultural products imported by Brazil, particularly from Uruguay and Argentina, which very often raises concerns to Brazilian rice producers. This paper aims to analyze the factors that determine the Brazilian rice imports, and therefore proposes an economic model to examine these trade flows in Mercosur, assuming that the Brazilian rice imports results from a domestic demand surplus. An econometric model Vector Auto-regressive (structural VAR) is applied. Results show a strong relationship among rice imports and domestic rice prices, as well as the exchange rate. A significant effect of import prices over domestic prices has been verified. The quantity of rice imports relates positively to an increase of domestic prices and negatively to an increase of import prices, as well as increases in the exchange rate. A bicausality relationship is verified between domestic and import prices for rice. One of the major conclusions is that Brazilian rice imports answer immediately to changes in domestic prices and exchange rate and react one quarter later to changes in import prices suggesting a delay over rice importers to substitute imports by the domestic rice.
Fatores Associados à Eficiência Técnica e de Escala das Cooperativas Agropecuárias Paranaenses
Creators: name: Souza, Uemerson Rodrigues De
name: Braga, Marcelo Jose
name: Ferreira, Marco Aurélio Marques
name: Souza, Uemerson Rodrigues De
name: Braga, Marcelo Jose
name: Ferreira, Marco Aurélio Marques
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Efficiency
subject: finances
subject: agricultural cooperatives

description: The present paper analyzes the scale and the technical efficiency of the agricultural cooperatives in the Paraná state, and identifies the factors that are related with their efficiency. The methodology is based on Data Envelopment Analysis (DEA), and discriminant analysis. Results demonstrate that large agricultural cooperatives are more efficient than the small ones. The main factors that influence the efficiency are own capital (equity) and smaller payment periods. In synthesis, to reach larger levels of competitiveness, the agricultural cooperatives need to develop better defined capitalization practices.
Implications of COVID-19 for the Indigenous labour market
Creators: name: DINKU, YONATAN
name: Hunter, Boyd
name: Markham, Francis
Publisher: name: Canberra, ACT: Australian National University, Centre for Aboriginal Economic Policy Research (CAEPR)
Year: 2020
Subjects: subject: Aboriginal and Torres Strait Islander peoples

description: The medical and policy response to COVID-19 has focussed on the containment of the virus, including active surveillance, contact tracing, quarantine, and early strong social distancing efforts needed to limit transmission. The response to the virus has led to a substantial economic disruption. The net effect on the Australian economy has been a sharp decline in national economic activity, which is likely to be exacerbated by the inherent uncertainty of the health crisis and the ongoing need for further containment for a second wave of outbreaks. This ongoing uncertainty will amplify the economic uncertainty inherent in recessions. The global nature of the pandemic and the evolving geopolitical environment may affect international trade for a number of years. Macroeconomic shocks can affect the Indigenous labour market in a number of ways. The primary effect is through the depressed aggregate demand that leads to fewer jobs. Labour market scarring that occurs in a recession may lead to atrophying of skills through the lack of use in the workplace and the poor quality of matches between job seekers and jobs as some workers stay in jobs to which they are unsuited. However, Indigenous workers also experience racial discrimination and historical social exclusion, which reduces the prospect of re-entry into the labour market following a recession and increases exits from employment and turnover between jobs that reduce the ability to build up labour market experience. It is reasonable to anticipate a substantial increase in the number of discouraged Indigenous workers after a COVID recession.
Acceleration of charged particles from near-extremal rotating black holes embedded in magnetic fields
Creators: name: Coimbra-Araújo, C. H.
name: Anjos, R. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The aim of the present article is to evaluate the motion of charged test particles in the vicinity of a near-extremal rotating black hole in the presence of magnetic fields. Euler-Lagrange motion equations and effective potential methods are used to characterize the motion out of the equatorial plane. Such approach is of peculiar significance if it is considered, e.g., accretion processes onto rotating black holes. In general investigations concerning accretion focus mostly on the simplest case of particles moving in the equatorial plane. Here it will be considered that particles initially moving around some particular orbit may be perturbed by a kick along the $θ$ direction, giving rise to other possible orbits. We confirm the possibility that ultra high energy cosmic rays would be produced at the very center of AGNs, for a specific range of magnetic field magnitudes, since it is possible that ultra-high center-of-mass energies can be produced by particles colliding near the horizon of fastly rotating black holes.
description: 13 pages, 14 figures
The Supernova Legacy Survey
Creators: name: Sullivan, Mark
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Type Ia supernovae (SNe Ia) currently provide the most direct evidence for an accelerating Universe and for the existence of an unknown "dark energy" driving this expansion. The 5-year Supernova Legacy Survey (SNLS; http://cfht.hawaii.edu/SNLS/) will deliver ~1000 SN Ia detections with well-sampled g'r'i'z' light curves. Using this definitive dataset, we will obtain a precise measurement of the cosmological parameters (Omega_m, Omega_lambda); our goal is to determine the cosmological equation of state parameter "w" to a statistical precision of +/-0.07, testing theories for the origin of the universal acceleration. In this proceeding, we summarise the progress made during the first full year of the survey operation.
description: To appear in "1604-2004: Supernovae as Cosmological Lighthouses", Padua, June 16-19 2004, eds. Turatto et al., ASP conference Series. 4 pages
Additional file 1 of methCancer-gen: a DNA methylome dataset generator for user-specified cancer type based on conditional variational autoencoder
Creators: name: Joungmin Choi
name: Chae, Heejoon
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Plant Biology

description: Additional file 1 Supplementary material S1. (A) Average classification accuracy results for each cancer type based on different classifiers from the simulation performance evaluation in Fig. 1. (B) False positive rate (FPR) of methCancer-gen for each cancer type from the simulation performance evaluation in Fig. 1. To measure the FPR, multi-class datasets are converted to binary classification problems by using one class v.s. others scheme. (C) False negative rate (FNR) of methCancer-gen for each cancer type from the simulation performance evaluation in Fig. 1. To measure the FNR, multi-class datasets are converted to binary classification problems by using one class v.s. others scheme.
LO Peg in 1998: Starspot patterns and differential rotation
Creators: name: Barnes, J. R.
name: Cameron, A. Collier
name: Lister, T. A.
name: Pointer, G. R.
name: Still, M. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Doppler images of the young K5V - K7V rapid rotator LO Peg from seven nights of continuous spectroscopy obtained in 1998 from July 04 to July 10. The images reveal the presence of a strong polar cap with appendages extending to mid-latitudes, but no starspots are seen below 15\degr. We briefly discuss the distribution of spots in light of recent flux transport simulations which are able to reproduce the observed latitude dependence. With the full timeseries of spectra, of which 314 are useful, many phases are observed three times over the seven nights of observations. Using starspots as tracers of a solar-like latitudinal differential rotation in our image reconstructions, we find that the equatorial regions complete one more rotation than the polar regions every {181 $\pm$ 35} d. LO Peg is the second coolest star for which such a measurement has been made using indirect imaging methods. The degree of latitudinal shear is less than that seen in G and early K dwarfs, suggesting a trend in which differential rotation decreases with stellar mass in (pre-)main sequence objects.
description: 9 pages (to appear in MNRAS)
Quantifying mixing and available potential energy in vertically periodic simulations of stratified flows
Creators: name: Howland, Christopher J.
name: Taylor, John R.
name: Caulfield, C. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Turbulent mixing exerts a significant influence on many physical processes in the ocean. In a stably stratified Boussinesq fluid, this irreversible mixing describes the conversion of available potential energy (APE) to background potential energy (BPE). In some settings the APE framework is difficult to apply and approximate measures are used to estimate irreversible mixing. For example, numerical simulations of stratified turbulence often use triply periodic domains to increase computational efficiency. In this setup however, BPE is not uniquely defined and the method of Winters et al. (1995, J. Fluid Mech., 289) cannot be directly applied to calculate the APE. We propose a new technique to calculate APE in periodic domains with a mean stratification. By defining a control volume bounded by surfaces of constant buoyancy, we can construct an appropriate background buoyancy profile $b_\ast(z,t)$ and accurately quantify diapycnal mixing in such systems. This technique also permits the accurate calculation of a finite amplitude local APE density in periodic domains. The evolution of APE is analysed in various turbulent stratified flow simulations. We show that the mean dissipation rate of buoyancy variance $χ$ provides a good approximation to the mean diapycnal mixing rate, even in flows with significant variations in local stratification. When quantifying measures of mixing efficiency in transient flows, we find significant variation depending on whether laminar diffusion of a mean flow is included in the kinetic energy dissipation rate. We discuss how best to interpret these results in the context of quantifying diapycnal diffusivity in real oceanographic flows.
description: 28 pages, 10 figures, accepted to J. Fluid Mech
Which Globular Clusters contain Intermediate-mass Black Holes?
Creators: name: Baumgardt, Holger
name: Makino, Junichiro
name: Hut, Piet
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been assumed that intermediate-mass black holes (IMBHs) in globular clusters can only reside in the most centrally concentrated clusters, with a so-called `core-collapsed' density profile. While this would be a natural guess, it is in fact wrong. We have followed the evolution of star clusters containing IMBHs with masses between 125 \le M_{BH} \le 1000 M_{\odot} through detailed N-body simulations, and we find that a cluster with an IMBH, in projection, appears to have a relatively large `core' with surface brightness only slightly rising toward the center. This makes it highly unlikely that any of `core-collapsed' clusters will harbor an IMBH. On the contrary, the places to look for an IMBH are those clusters that can be fitted well by medium-concentration King models. The velocity dispersion of the visible stars in a globular cluster with an IMBH is nearly constant well inside the apparent core radius. For a cluster of mass M_C containing an IMBH of mass M_{BH}, the influence of the IMBH becomes significant only at a fraction 2.5 M_{BH}/M_C of the half-mass radius, deep within the core, where it will affect only a small number of stars. In conclusion, observational detection of an IMBH may be possible, but will be challenging.
description: 13 pages, 3 figures, Accepted ofr publication in ApJ (scheduled for February 2005)
Desafios da Agroindústria Canavieira no Brasil Pós-desregulamentação: uma análise das capacidades tecnológicas
Creators: name: Shikida, Pery Francisco Assis
name: Azevedo, Paulo Furquim De
name: Vian, Carlos Eduardo De Freitas
name: Shikida, Pery Francisco Assis
name: Azevedo, Paulo Furquim De
name: Vian, Carlos Eduardo De Freitas
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Dynamics
subject: technology
subject: sugar
subject: ethanol

description: This paper aims to appraise the technological capabilities (LALL concept, 1992) of Brazilian sugarcane agroindustry for a sample of three leading production states: São Paulo, Paraná and Minas Gerais. A field research survey with sugar and ethanol mills provides the primary data for assessing technological capabilities (39%, 40% and 35% of the units in São Paulo, Minas Gerais and Paraná State, respectively, answered, which means approximately 32% of national production of sugarcane, sugar and ethanol). As a main finding, the sugarcane agroindustry, technically qualified and with low costs, presents an expressive domain of simple routine and adaptive duplicative technological capabilities. However, the advanced technological capabilities (innovative risky) are still lagging behind the technological frontier, especially in the innovation process and in the R&D.
Spin Dynamics of Half-Doped La3/2Sr1/2NiO4
Creators: name: Freeman, P. G.
name: Boothroyd, A. T.
name: Prabhakaran, D.
name: Frost, C.
name: Enderle, M.
name: Hiess, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report polarized- and unpolarized- neutron inelastic scattering measurements of the magnetic excitation spectrum in the spin-charge ordered phase of La3/2Sr1/2NiO4. Up to energies of ~30 meV we observe broad magnetic modes characteristic of a near checkerboard ordering. A linear spin-wave model for an ideal checkerboard ordering with a single antiferromagnetic exchange interaction J' = 5.8 +/- 0.5 meV between next-nearest-neighbour spins on Ni2+ sites, together with a small XY-like single-ion anisotropy, provides a reasonable description of the measured dispersion. Above 30 meV the excitations are not fully consistent with the linear spin-wave model, with modes near the two-dimensional reciprocal space wavevector (0.5,0.5) having an anomalously large intensity. Furthermore, two additional dispersive modes not predicted by spin wave theory were observed, both of which are probably magnetic. One disperses away from (0.5,0.5) in the energy range between 50-56 meV, and the other appears around (h,k) type positions (h,k = integer) in the energy range 31-39 meV. We propose a model in which these anomalous features are explained by the existence of discommensurations in the checkerboard ordering. At low energies there is additional diffuse scattering centred on the magnetic ordering wavevector. We associate this diffuse scattering with dynamic antiferromagnetic correlations between spins attached to the doped holes.
description: 10 pages, 8 figures
Additional file 2 of methCancer-gen: a DNA methylome dataset generator for user-specified cancer type based on conditional variational autoencoder
Creators: name: Joungmin Choi
name: Chae, Heejoon
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Plant Biology

description: Additional file 2 Supplementary material S2. Average AUC results for each cancer type from the performance evaluation in Fig. 1.To measure the AUC, multi-class datasets are converted to binary classification problems by using one class v.s. others scheme.
A KÁROLY RÓBERT BEFEKTETÉSI CSOPORT PORTFOLIÓJÁBAN MEGJELENŐ KOCKÁZAT
Creators: name: Kálmán, Zsuzsanna
name: Zakár, Tivadar
name: Kálmán, Zsuzsanna
name: Zakár, Tivadar
Publisher: name: Unknown
Year: 2011
Subjects: subject: Financial Economics
subject: Teaching/Communication/Extension/Profession
subject: diverzifikáció
subject: kovariancia
subject: korreláció
subject: részvény
subject: deviza
subject: covariance
subject: correlation
subject: diversification
subject: share
subject: foreign exchange

description: A tanulmány során a Károly Róbert Főiskolán működő tehetséggondozó program portfoliójában megjelenő kockázatot vizsgálom. A Befektetési Csoport elsődleges feladata egy jól teljesítő portfolió összeállítása. A kockázat vizsgálata során kitérek minden olyan tényezőre, amely meghatározza a teljesítményt illetve azt is részletezem, hogy az egyes kockázati tényezőknek milyen hatása van a portfolióra. A deviza-, az árfolyam-, és a piaci kockázatra térek ki, valamint a részvények árfolyam kockázatát megvizsgálom kovariancia- és korrelációelemzéssel a pontos kockázat hozzájárulás érdekében. ------------------------------------------------------------ During my study I analysed the portfolio risks which monitored by the Károly Róbert College talent management. The Investment Group goals to create a well performing portfolio. I analysed the risk of all factors which derermine the performance and describe the individual risk factors which have affected the portfolio. I analysed currency risk, market risk,, the foreign exchange rate and I examined the correlation and covariance.
Probing the Surfaces of Interstellar Dust Grains: The Adsorption of CO at Bare Grain Surfaces
Creators: name: Fraser, Helen J.
name: Bisschop, Suzanne E.
name: Pontoppidan, Klaus M.
name: Tielens, Alexander G. G. M.
name: van Dishoeck, Ewine F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A solid-state feature was detected at around 2175 cm-1 towards 30 embedded young stellar objects in spectra obtained using the ESO VLT-ISAAC. We present results from laboratory studies of CO adsorbed at the surface of Zeolite wafers, where absorption bands were detected at 2177 and 2168 cm-1 (corresponding to CO chemisorbed at the Zeolite surface), and 2130 cm-1 (corresponding to CO physisorbed at the Zeolite surface), providing an excellent match to the observational data. We propose that the main carrier of the 2175-band is CO chemisorbed at bare surfaces of dust grains in the interstellar medium. This result provides the first direct evidence that gas-surface interactions do not have to result in the formation of ice mantles on interstellar dust. The strength of the 2175-band is estimated to be ~ 4 x 10-19 cm molecule-1. The abundance of CO adsorbed at bare grain surfaces ranges from 0.06 to 0.16 relative to H2O ice, which is, at most, half of the abundance (relative to H2O ice) of CO residing in H2O-dominated ice environments. These findings imply that interstellar grains have a large (catalytically-active) surface area, providing a refuge for interstellar species. Consequently the potential exists for heterogeneous chemistry to occur involving CO molecules in unique surface chemistry pathways not currently considered in gas-grain models of the interstellar medium.
description: 19 pages inc. 3 figures 2 tables, accepted for publication in MNRAS
What do we have in canon? : Chinese Canadian anthologies and the posit(ion)ing of an ethno-national literary canon and its contexts
Creators: name: Lew, Janey
Publisher: name: University of British Columbia
Year: 2010

description: Chinese Canadian anthologies are sites for negotiating community boundaries, positing coalitions, deconstructing social and literary institutions, and asserting legitimacy. They pose the question, What do we have in canon?, by interrogating the representation of Chinese Canadian writers in the existing canon and by offering an alternative canon for consideration. I propose the term "ethno-national literature" to account for the ethno-racial and national distinctiveness of the literary category "Chinese Canadian." While recent scholarly work has been directed toward conceptualizing "Asian Canadian" and "Asian North American" as disciplinary areas of study within English, it does not address the issue that specific ethno-racial groups continue to identify themselves in categories such as "Chinese Canadian" or "Japanese Canadian." This thesis considers the theoretical potential of Chinese Canadian anthologies as texts which articulate rhetorical community. I examine five anthologies of Chinese Canadian literature, Inalienable Rice (a collaboration between Chinese and Japanese Canadian artist-activists, 1979), Many-Mouthed Birds (1991), Jin Guo (1992), Swallowing Clouds (1999) and Strike the Wok (2003), in comparison with three Oxford anthologies of Canadian literature to consider how Chinese Canadian anthologies act as culturally-resistant, canon-forming texts.
KNN Transformer with Pyramid Prompts for Few-Shot Learning
Creators: name: Li, Wenhao
name: Wang, Qiangchang
name: Zhao, Peng
name: Yin, Yilong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4.9

description: Few-Shot Learning (FSL) aims to recognize new classes with limited labeled data. Recent studies have attempted to address the challenge of rare samples with textual prompts to modulate visual features. However, they usually struggle to capture complex semantic relationships between textual and visual features. Moreover, vanilla self-attention is heavily affected by useless information in images, severely constraining the potential of semantic priors in FSL due to the confusion of numerous irrelevant tokens during interaction. To address these aforementioned issues, a K-NN Transformer with Pyramid Prompts (KTPP) is proposed to select discriminative information with K-NN Context Attention (KCA) and adaptively modulate visual features with Pyramid Cross-modal Prompts (PCP). First, for each token, the KCA only selects the K most relevant tokens to compute the self-attention matrix and incorporates the mean of all tokens as the context prompt to provide the global context in three cascaded stages. As a result, irrelevant tokens can be progressively suppressed. Secondly, pyramid prompts are introduced in the PCP to emphasize visual features via interactions between text-based class-aware prompts and multi-scale visual features. This allows the ViT to dynamically adjust the importance weights of visual features based on rich semantic information at different scales, making models robust to spatial variations. Finally, augmented visual features and class-aware prompts are interacted via the KCA to extract class-specific features. Consequently, our model further enhances noise-free visual representations via deep cross-modal interactions, extracting generalized visual representation in scenarios with few labeled samples. Extensive experiments on four benchmark datasets demonstrate the effectiveness of our method.
description: 10 pages, 5 figures, accepted by ACM Multimedia 2024
The Proper Motion of the Central Compact Object RX J0822-4300 in the Supernova Remnant Puppis A, Revisited
Creators: name: Mayer, Martin
name: Becker, Werner
name: Patnaude, Daniel
name: Winkler, P. Frank
name: Kraft, Ralph
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an improved proper motion measurement of the central compact object RX J0822-4300, located in the supernova remnant Puppis A. By employing a new data set taken in February 2019 by the High Resolution Camera aboard the Chandra X-ray Observatory, we approximately double the available temporal baseline for our analysis to slightly more than 19 years (7000 days). We correct for the astrometric inaccuracy of Chandra using calibrator stars with known optical positions that are detected in all observations. Thereby, we obtain absolute positions of RX J0822-4300 accurate to around $0.1^{\prime\prime}$ and from these a new best estimate for its total proper motion of $μ_{\rm tot}= (80.4 \pm 7.7)\,\rm{mas\,yr}^{-1}$. For a remnant distance of 2 kpc, this corresponds to a projected kick velocity of $(763 \pm 73)\, \rm{km\,s}^{-1}$ at a position angle of $ϕ_0 = (247.8 \pm 4.4)^{\circ}$. The proper motion measurement of RX J0822-4300 is used for discussing the kinematic age of Puppis A.
description: 15 pages, 7 figures, Accepted for publication in ApJ
Inclusive scattering data on light nuclei as a precision tool for the extraction of G_M^n
Creators: name: Rinat, A. S.
name: Taragin, M. F.
name: Viviani, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We demonstrate that refinements in the analysis of inclusive scattering data on light nuclei enable the extraction of, generally accurate, values of the neutron magnetic form factor G_M^n(Q^2). In particular, a recent parametrization of ep inclusive resonance excitation enables a reliable calculation of the inelastic background, and as a consequence a separation of quasi-elastic and inelastic contributions. A far larger number of data points than previously considered is now available for analysis and enables a more reliable extraction of G_M^n from cross section and R_T data on D and He. The achieved accuracy appears mainly limited by the present uncertainties in the knowledge of proton form factors and by the accuracy of the data.
description: new version with minor changes in the text and figures, added references and 5 figures
Tunneling between two-dimensional electron systems in a high magnetic field: role of interlayer interactions
Creators: name: Klironomos, F. D.
name: Dorsey, A. T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the tunneling current for a bilayer quantum Hall system in the interlayer incoherent regime. In order to capture the strong correlation effects we model the layers as two Wigner crystals coupled through interlayer Coulomb interactions, treated in the continuum limit. By generalizing previous work by Johansson and Kinaret (JK), we are able to study the effect of the low energy out-of-phase magnetophonon modes on the electron ``shake-up'' which occurs during a tunneling event. We find the tunneling current peak value to scale with the magnetic field as found by JK; however, we find a different scaling of the peak value with the interlayer separation, which agrees with the measurements by Eisenstein \it{et al.}
description: 10 pages, 3 figures article submitted to Phys. Rev. B
Additional file 1 of Genome-wide association study of Striga resistance in early maturing white tropical maize inbred lines
Creators: name: Adewale, Samuel Adeyemi
name: Baffour Badu-Apraku
name: Akinwale, Richard Olutayo
name: Agre Angelot Paterne
name: Melaku Gedil
name: Garcia-Oliveira, Ana Luísa
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1: Figure S1. Quality filtering of 44,470 markers among 132 maize inbred lines. Description of data: Quality filtering of 44,470 markers among 132 maize inbred lines that were used for population structure analysis and the GWAS.
Umklapp scattering of pairs in BCS superconductivity theory
Creators: name: Zheng, X. H.
name: Walmsley, D. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The BCS theory of superconductivity is extended to recognize pairing of electrons by both normal and umklapp scattering. Application of the variational approach shows that coexistence of normal and umklapp scattering frustrates superconductivity.
description: 9 pages, 5 figures. to be published in Journal of Physics: Condensed Matter
Fast Adaptive Task Offloading in Edge Computing based on Meta Reinforcement Learning
Creators: name: Wang, Jin
name: Hu, Jia
name: Min, Geyong
name: Zomaya, Albert Y.
name: Georgalas, Nektarios
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multi-access edge computing (MEC) aims to extend cloud service to the network edge to reduce network traffic and service latency. A fundamental problem in MEC is how to efficiently offload heterogeneous tasks of mobile applications from user equipment (UE) to MEC hosts. Recently, many deep reinforcement learning (DRL) based methods have been proposed to learn offloading policies through interacting with the MEC environment that consists of UE, wireless channels, and MEC hosts. However, these methods have weak adaptability to new environments because they have low sample efficiency and need full retraining to learn updated policies for new environments. To overcome this weakness, we propose a task offloading method based on meta reinforcement learning, which can adapt fast to new environments with a small number of gradient updates and samples. We model mobile applications as Directed Acyclic Graphs (DAGs) and the offloading policy by a custom sequence-to-sequence (seq2seq) neural network. To efficiently train the seq2seq network, we propose a method that synergizes the first order approximation and clipped surrogate objective. The experimental results demonstrate that this new offloading method can reduce the latency by up to 25% compared to three baselines while being able to adapt fast to new environments.
description: Accepted by IEEE Transaction on Parallel and Distributed Systems
Estimation of the Adriatic sea water turnover time using fallout 90Sr as a radioactive tracer
Creators: name: Franic, Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Medical Physics (physics.med-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Systematic, long term measurements, starting in 1963, of 90Sr activity concentrations in sea water have been performed at four locations (cities of Rovinj, Rijeka, Split and Dubrovnik) along the Croatian coast of the Adriatic sea. In addition, fallout samples were collected in the city of Zadar. 90Sr activity concentrations are in good correlation with the fallout activity, the coefficient of correlation being 0.72. After the nuclear moratorium on atmospheric nuclear bomb tests in 1960s, 90Sr activity concentrations in sea water exponentially dropped from 14.8 +/- 2.4 Bq/m3 in 1963 to 2.0 +/- 0.3 Bq/m3 in 2003. In the same period, the total annual 90Sr land surface deposit in Zadar fell by three orders of magnitude, from 713.3 Bq/m2 in 1963 to 0.4 Bq/m2 in 2003. Using strontium sea water and fallout data, a mathematical model was developed to describe the rate of change of 90Sr activity concentrations in the Adriatic sea water and estimate its mean residence time in the Adriatic. By fitting the experimental data to a theoretically predicted curve, the mean residence time of 90Sr in the Adriatic sea water was estimated to be approximately 3.4 +/- 0.4 years, standard deviation being calculated by Monte Carlo simulations. As in physical oceanography 90Sr can be used as effective radioactive tracer of water mass transport, this value also reflects the upper limit for turnover time of the Adriatic sea water. The turnover time of 3.4 years for the Adriatic sea water is in reasonable agreement with the value which was estimated, by studying water flows through the Strait of Otranto, to be on the order of 1 year.
description: 27 pages, including 1 table and 5 figures; final version; accepted by Journal of Marine Systems
A CSONGRÁDI SZŐLŐTERMELŐK GAZDASÁGI HELYZETE
Creators: name: Kispál, Gabriella
name: Liebmann, Lajos
name: Kispál, Gabriella
name: Liebmann, Lajos
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: termékpálya
subject: költség
subject: hozam
subject: veszteség
subject: chain
subject: cost
subject: yield
subject: loss

description: A tanulmány a csongrádi szőlőtermelők gazdasági helyzetét több vizsgálati módszer felhasználására alapozva mutatja be. A termelők a rendelkezésükre álló egyébként jó természeti adottságok kihasználása mellett – más hazai szőlőtermő területek, borvidékek gazdálkodóihoz hasonlóan – hosszabb ideje kedvezőtlen gazdasági feltételek között dolgoznak fennmaradásukért. Eredményességüket meghatározza az is, hogy kévéssé ismert termőhelyen végzik tevékenységüket, továbbá a termékpálya helyi kapcsolatrendszerében, éppen a borvidék piaci alul pozícionáltsága miatt, kiszolgáltatottságuk még kifejezettebb. ------------------------------------------------- The study shows the economic situation of grape producers at Csongrád county, based on the use of several analytical methods. The producers have been working by adverse economic conditions for surviving for a long time, similarly producers from other wine regions and grape producing areas, beside the utilization of available good natural conditions. Their efficiency was determined, that they work in a less known region, additionally their defenselessness is larger within the chain’s relationship, because of the low market position of the wine region.
Tethered Particle Motion Technique in Crowded Media: Compaction of DNA by Globular Macromolecules
Creators: name: Joyeux, Marc
Publisher: name: arXiv
Year: 2024
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Tethered Particle Motion (TPM) is a single molecule technique, which consists in tracking the motion of a nano-particle (NP) immersed in a fluid and tethered to a glass surface by a DNA molecule. The present work addresses the question of the applicability of TPM to fluids which contain crowders at volume fractions ranging from that of the nucleoid of living bacteria (around 30%) up to the jamming threshold (around 66%). In particular, we were interested in determining whether TPM can be used to characterize the compaction of DNA by globular crowders. To this end, extensive Brownian Dynamics simulations were performed with a specifically built coarse-grained model. Analysis of the simulations reveals several effects not observed in dilute media, which impose constraints on the TPM set-up. In particular, the Tethered Fluorophore Motion (TFM) technique, which consists in replacing the NP by a much smaller fluorophore, is probably better suited than standard TPM. Moreover, a sample preparation technique which does not involve hydrophilic patches may be required. Finally, the use of a DNA brush may be needed to achieve DNA concentrations close to in vivo ones.
Particle dynamics in the Newtonian potential sourced by a homogeneous circular ring
Creators: name: Igata, Takahisa
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Newtonian gravitational potential sourced by a homogeneous circular ring in arbitrary dimensional Euclidean space takes a simple form if the spatial dimension is even. In contrast, if the spatial dimension is odd, it is given in a form that includes complete elliptic integrals. In this paper, we analyze the dynamics of a freely falling massive particle in its Newtonian potential. Focusing on circular orbits on the symmetric plane where the ring is placed, we observe that they are unstable in 4D space and above, while they are stable in 3D space. The sequence of stable circular orbits disappears at $1.6095\cdots$ times the radius of the ring, which corresponds to the innermost stable circular orbit (ISCO). On the axis of symmetry of the ring, there are no circular orbits in 3D space but more than in 4D space. In particular, the circular orbits are stable between the ISCO and infinity in 4D space and between the ISCO and the outermost stable circular orbit in 5D space. There exist no stable circular orbits in 6D space and above.
description: 18 pages, 1 figure; v2: minor revision; v3: published version
title: KNOWLEDGE STORAGE : Revitalisierung eines Tabakspeichers aus den 1920er Jahren in Plovdiv, Bulgarien
Creators: name: Shileva, Margarita
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Revitalisierung
subject: Bulgarien
subject: Plovdiv
subject: Kulturhauptstadt
subject: Tabakstadt
subject: Mediathek
subject: revitalizing
subject: Bulgarien
subject: Plovdiv
subject: Capital of Culture
subject: tobacco manufacturers
subject: media center

description: Der 'Tabakspeicher von Kudoglu' ist Teil eines großteils unbenutzten Areals inmitten der bulgarischen Stadt Plovdiv, über dessen zukünftige Nutzung in der Stadt seit ein paar Jahren debattiert wird. Zentrales Ergebnis dieser Arbeit ist ein innovativer architektonischer Entwurf, der sich der Revitalisierung dieses Tabakspeichers widmet und damit exemplarisch darstellt, wie dieses Areal, die sogenannte 'Tabakstadt', unter Berücksichtigung konservatorischer Maßnahmen, revitalisiert und für die Bewohner der Stadt zugänglich gemacht werden kann. Die Umfunktionierung des ehemaligen Tabakspeichers zu einer Mediathek, in der mit modernen Mitteln gelernt und gearbeitet wird, zeigt auf, wie die Stadt Plovdiv auf den gesellschaftlichen Wandel hin zu einer Wissensgesellschaft zukunftsorientiert agieren und aktiv die Entwicklung der Stadt gestalten kann. Nicht zuletzt ist diese Arbeit ein Beitrag für die Vorbereitungen der Stadt Plovdiv, die 2019 die Kulturhauptstadt Europas sein wird.
description: The Tobacco Warehouse of Kudoglu is situated in an abandoned industrial area in the heart of Plovdiv, Bulgaria. Extensive debates have surrounded the dubbed 'Tobacco City' and its future. The focus of this master thesis is an innovative proposal for the revitalization of Kudoglu's warehouse. Furthermore, it suggests how the former industrial area can be involved in the development of Plovdiv. The scheme proposes a change in function of the building - from a tobacco warehouse into a Media Lab, where users have access to modern methods for learning and working. Technology and exchange of information play an important role in the contemporary society. The proposal offers a view how the city can adjust and react to the current social and hi-tech standards. Moreover, the scheme contributes to the development and preparation of Plovdiv as the 2019 European Capital of Culture.
Ground-state phases in antiferromagnetic spin-crossover chains
Creators: name: Timm, Carsten
name: Schollwöck, Ulrich
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Spin-crossover molecules having a low-spin ground state and a low-lying excited high-spin state are promising components for molecular electronics. We theoretically examine one-dimensional spin-crossover chain molecules of the type of Fe-II triazole complexes. The existence of the additional low-spin/high-spin degree of freedom leads to rich behavior already in the ground state. We obtain the complete ground-state phase diagram, taking into account an elastic nearest-neighbor interaction, a ferromagnetic or antiferromagnetic exchange interaction between the magnetic ions, and an external magnetic field. Ground-state energies are calculated with high numerical precision using the density-matrix renormalization group. Besides pure low-spin, highspin, and alternating low-spin/high-spin phases we obtain a number of periodic ground states with longer periods, which we discuss in detail. For example, for antiferromagnetic coupling there exists a dimer phase with a magnetic unit cell containing two high-spin ions forming a spin singlet and a single low-spin ion, which is stabilized by the energy gain for singlet formation.
description: 8 pages RevTeX, 8 figures included