cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PREVISÃO DE PREÇOS NA BOVINOCULTURA DE CORTE
Creators: name: Nogueira, Denismar Alves
name: Safadi, Thelma
name: Nogueira, Denismar Alves
name: Safadi, Thelma
Publisher: name: Unknown
Year: 2000
Subjects: subject: Analysis of Intervention
subject: SARIMA models
subject: Preview.

description: This paper is dedicated to analysing the historical series of prices for the gross beef bovines in the state of São Paulo from 1988 to 1998. For the analysis on the series the time series models were considered, aiming at finding the one which would be able to provide the best suited preview, among the models adjusted. Economical series are usually not stationary, the case in which the series floats around a straight line with either positive or negative inclinations ( linear tendency ) being the most common. Another form of non-stationariness occurs when the series floats around a level for a given period of time, changing levels afterwards and floating around a new level. Such fact may result from an event occurred at some point in the timeline, like government economical plans, frosts, etc.These events do alter the series’ behaviour and are denominated “interventions”. The interventions’effects can be incorporated into the series’ analysis. This piece of work seeks to adjusting models both with and without intervention. From all the models adjusted, the best previews were obtained from those which featured interventions. The previews for the year of 1999 were made based on the model chosen.
CUSTOS E OTIMIZAÇÃO DE ROTAS NO TRANSPORTE DE LEITE A LATÃO E A GRANEL: UM ESTUDO DE CASO
Creators: name: Silva, Iraue Casarin Vieira Da
name: Reis, Ricardo Pereira
name: Gomes, Marcos Jose Negreiros
name: Silva, Iraue Casarin Vieira Da
name: Reis, Ricardo Pereira
name: Gomes, Marcos Jose Negreiros
Publisher: name: Unknown
Year: 2000
Subjects: subject: milk transportation
subject: can and bulk
subject: optimization of routes.

description: This present work compares the can and the bulk milk transportation systems in the first run, taking into consideration the economical cost indexes, leveling point, optimization of routes and the forms of payment for the freight. The study was carried out at a milk receptor company in the western side of Minas Gerais and the optimization model was based on the Vehicles Path Vertices Problem ( PPV ). The SisGRAFO software was used. In the analysis operational deficiencies in the bulk milk transportation system were verified, as well as deficiencies in the remuneration of the carters and in the optimization of routes. The adoption of a system which rewards the carter per transported volume instead of traveled distance comes as a suggestion.
Entropic uncertainty relation in Garfinkle-Horowitz-Strominger dilation black hole
Creators: name: Shahbazi, Fariba
name: Haseli, Soroush
name: Dolatkhah, Hazhir
name: Salimi, Shahriar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Heisenberg's uncertainty principle is a fundamental element in quantum mechanics. It sets a bound on our ability to predict the measurement outcomes of two incompatible observables simultaneously. In quantum information theory, the uncertainty principle can be expressed using entropic measures. The entropic uncertainty relation can be improved by considering an additional particle as a memory particle. The presence of quantum correlation between the memory particle and the measured particle reduces the uncertainty. In a curved space-time, the presence of the Hawking radiation can reduce quantum correlation. Therefore, concerning the relationship between the quantum correlation and entropic uncertainty lower bound, we expect that the Hawking radiation increases the entropic uncertainty lower bound. In this work, we investigate the entropic uncertainty relation in Garfinkle-Horowitz-Strominger (GHS) dilation black hole. We consider a model in which the memory particle is located near the event horizon outside the black hole, while the measured particle is free falling. To study the proposed model, we will consider examples with Dirac fields. We also explore the effect of the Hawking radiation on the quantum secret key rate.
description: 15 pages, 13 figures
A INOVAÇÃO E A COMPETITIVIDADE COMO FATORES DETERMINANTES NA GESTÃODAS DAS EMPRESAS - UM DESAFIO PARA AS EMPRESAS MINEIRAS
Creators: name: Furtado, Renata Pedretti Morais
name: Furtado, Renata Pedretti Morais
Publisher: name: Unknown
Year: 2000
Subjects: subject: innovation
subject: globalim
subject: competitiveness

description: The objective of the present work is to evaluate the relationship among competitiveness, globalism and inovations determined factors of technical and administrative changes in companies of Minas Gerais. It was used a qualitative research that aimed to gather data about the structure of the company; investments that were carried pit; the strength and the weakness aspects; opportunities and threats; the use of technologies and development of new products; the training processes; the abilities and the new area of knowledge relevant for the professionals; establishment of partnership; levels of exporting; the existence of investments directed to P&D; the role of the state on the present process. The data were gathered in Belo Horizonte, Contagem, Betim, Varginha, Três Pontas and Lavras in companies dealing with various sectors: agro-industries, mechanical, electrical and electronics,telecomunication, wood and furniiture, as well as mining. The companies varied from big to small size.
How do people perceive the disclosure risk of maps? Examining the perceived disclosure risk of maps and its implications for geoprivacy protection
Creators: name: Junghwan Kim
name: Mei-Po Kwan
name: Levenstein, Margaret C.
name: Richardson, Douglas B.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: This research examines how people subjectively perceive the disclosure risk of a map using original data collected in an online survey with 856 participants. The results indicate that perceived disclosure risk increases as the amount of locational information displayed on a map increases. Compared to point-based maps, perceived disclosure risk is significantly lower for kernel density maps, convex hull maps, and standard deviational ellipse maps. The results also revealed that perceived disclosure risk is affected by map scale and the presence of information of other people on a map. For geomasking methods, perceived disclosure risk decreases as aggregation level increases and as relocation distance increases. However, aggregation methods (point to polygon) are more effective in preventing the re-identification of individuals when compared to relocation methods (point to point). Lastly, the perceived disclosure risk of a map that displays socially-vulnerable people is significantly higher than that of a map that displays non-vulnerable groups. Specifically, a map displaying the private locations of elementary school students has the highest perceived disclosure risk. Based on the results, a set of geoprivacy protection guidelines for mapping people’s private locations to minimize people’s perceived disclosure risk is proposed. Implications for mapping infectious diseases like the COVID-19 are also discussed.
Pynsett: A programmable relation extractor
Creators: name: Cetoli, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper proposes a programmable relation extraction method for the English language by parsing texts into semantic graphs. A person can define rules in plain English that act as matching patterns onto the graph representation. These rules are designed to capture the semantic content of the documents, allowing for flexibility and ad-hoc entities. Relation extraction is a complex task that typically requires sizable training corpora. The method proposed here is ideal for extracting specialized ontologies in a limited collection of documents.
description: Accepted for publication in SEMAPRO2020
Velocity Selection in 3D Dendrites: Phase Field Computations and Microgravity Experiments
Creators: name: Altundas, Y. B.
name: Caginalp, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The growth of a single needle of succinonitrile (SCN) is studied in three dimensional space by using a phase field model. For realistic physical parameters, namely, the large differences in the length scales, i.e., the capillarity length (10^{-8}cm - 10^{-6}cm), the radius of the curvature at the tip of the interface (10^{-3}cm - 10^{-2}cm) and the diffusion length (10^{-3}cm - 10^{-1}cm), resolution of the large differences in length scale necessitates a 500^{3} grid points on the supercomputer. The parameters, initial and boundary conditions used are identical to those of the microgravity experiments of Glicksman et al for SCN. The numerical results for the tip velocity are (i) largely consistent with the Space Shuttle experiments; (ii) compatible with the experimental conclusion that tip velocity does not increase with increased anisotropy; (iii) different for 2D versus 3D by a factor of approximately 1.9; (iv) essentially identical for fully versus rotationally symmetric 3D.
description: 18 pages and 5 figures
Seesaw and the Riddle of Mass
Creators: name: Ramond, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The prediction of small neutrino masses through the Seesaw Mechanism and their subsequent measurement suggests that the natural cut-off of the Standard Model is very high indeed. The recent neutrino data must be interpreted as a reflection of physics at very high energy. We examine their implications in terms of ideas of Grand Unification and Supersymmetry, and as possible hints for a unified theory of flavor.
description: Invited Talk, Seesaw 25, Institut Henri Poincar\'e, June 10-11, 2004, PAris, France
Table S 4. from Perfect mimicry between Heliconius butterflies is constrained by genetics and development
Creators: name: Belleghem, Steven M. Van
name: Roman, Paola A. Alicea
name: Gutierrez, Heriberto Carbia
name: Counterman, Brian A.
name: Papa, Riccardo
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology

description: MANOVA and LDA results for mid-forewing band (MFB) shape variation in H. erato and H. melpomene using the subset of landmarks. (A) MANOVA and LDA for H. erato. (B) MANOVA and LDA for H. melpomene. (C) MANOVA and LDA for H. erato and H. melpomene combined. (D) MANOVA and LDA for H. erato and H. melpomene Postman races combined. Only the scores of samples along significant PC axes were used as determined by permutation.
Rhinophis mendisi Gower 2020, sp. nov.
Creators: name: Gower, David J.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Uropeltidae
Rhinophis
Rhinophis mendisi

description: Rhinophis mendisi sp. nov.
Figs. 1–7; Tables 1–2
urn:lsid:zoobank.org.act: 9A614BD3-EC17-44E9-8A26-B7D9E9BE52EF
description: Published as part of Gower, David J., 2020, A new species of Rhinophis Hemprich, 1820 (Serpentes: Uropeltidae) from southwestern Sri Lanka, pp. 495-510 in Zootaxa 4810 (3) on page 496, DOI: 10.11646/zootaxa.4810.3.6, http://zenodo.org/record/3943969
Intersectoral Migration in Southeast Asia: Evidence from Indonesia, Thailand, and the Philippines
Creators: name: Butzer, Rita
name: Mundlak, Yair
name: Larson, Donald F.
name: Butzer, Rita
name: Mundlak, Yair
name: Larson, Donald F.
Publisher: name: Unknown
Year: 2003
Subjects: subject: agriculture
subject: Indonesia
subject: labor
subject: migration
subject: Philippines
subject: Thailand

description: Using time-series data spanning three decades, we examine the determinants of sectoral migration in Indonesia, Thailand, and the Philippines. We used a principal-components algorithm to address the problems associated with trended and intercorrelated explanatory variables. Migration rates in the three countries are low relative to other developing countries, with the consequence of persistent intersectoral income differentials. Even so, the rate of migration has been responsive to the income ratios in each country. The migration rates were also affected by the absorbing capacity of nonagriculture, as indicated by several measures. In contrast to other studies, policy variables consisting of indicators of physical and human capital had little impact on the migration rate separate from that captured by relative incomes.
A new example of a compact ERP G2-structure
Creators: name: Kath, Ines
name: Lauret, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We provide the second known example of an extremally Ricci pinched closed G2-structure on a compact 7-manifold, by finding a lattice in the only unimodular solvable Lie group admitting a left-invariant G2-structure. Furthermore, the Laplacian coflow and its solitons are studied on a 6-parameter family of left-invariant coclosed G2-structures on this Lie group. In this way, we obtain a 4-parameter subfamily of expanding solitons. The family is locally pairwise non-equivalent.
description: 18 pages
STIS ultraviolet/optical spectroscopy of `warm' ultraluminous infrared galaxies
Creators: name: Farrah, D.
name: Surace, J. A.
name: Veilleux, S.
name: Sanders, D. B.
name: Vacca, W. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We present high spatial resolution ultraviolet and optical spectroscopy, obtained using the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope, of nuclear structures within four `warm' Ultraluminous Infrared Galaxies (ULIRGs). We find an AGN in at least three, and probably all four of our sample, hosted in a compact, optically luminous `knot'. In three cases these knots were previously identified as a putative AGN nucleus from multiband optical imaging. Three of the sample also harbor a starburst in one or more knots, suggesting that the optically luminous knots seen in local ULIRGs are the most likely sites of the dust-shrouded starburst and AGN activity that power the infrared emission. The four AGN have a diverse range of properties; two are classical narrow line AGN, one shows both broad and narrow lines and evidence for lines of sight from the narrow through to the broad line regions, and one is plausibly a FeLoBAL AGN. The probable presence in one object of an FeLoBAL AGN, which are extremely rare in the QSO population, supports the idea that LoBAL AGN may be youthful systems shrouded in gas and dust rather than AGN viewed along a certain line of sight. The three starbursts for which detailed constraints are possible show a smaller range in properties; all three bursts are young with two having ages of ~4Myr and the third having an age of 20Myr, suggesting that ULIRGs undergo several bursts of star formation during their lifetimes. None of the starbursts show evidence for Initial Mass Function slopes steeper than about 3.3. The metallicities of the knots for which metallicities can be derived are all at least 1.5 times the Solar value. The properties of one further starburst knot are consistent with it being the forming core of an elliptical galaxy.
description: ApJ, accepted
The SAMI Galaxy Survey: A Range in S0 Properties Indicating Multiple Formation Pathways
Creators: name: Deeley, Simon
name: Drinkwater, Michael J.
name: Sweet, Sarah M.
name: Diaz, Jonathan
name: Bekki, Kenji
name: Couch, Warrick J.
name: Forbes, Duncan A.
name: Bland-Hawthorn, Joss
name: Bryant, Julia J.
name: Croom, Scott
name: Cortese, Luca
name: Lawrence, Jon S.
name: Lorente, Nuria
name: Medling, Anne M.
name: Owers, Matt
name: Richards, Samuel N.
name: van de Sande, Jesse
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It has been proposed that S0 galaxies are either fading spirals or the result of galaxy mergers. The relative contribution of each pathway, and the environments in which they occur remains unknown. Here we investigate stellar and gas kinematics of 219 S0s in the SAMI Survey to look for signs of multiple formation pathways occurring across the full range of environments. We identify a large range of rotational support in their stellar kinematics, which correspond to ranges in their physical structure. We find that pressure-supported S0s with $v/σ$ below 0.5 tend to be more compact and feature misaligned stellar and gas components, suggesting an external origin for their gas. We postulate that these S0s are consistent with being formed through a merger process. Meanwhile, comparisons of ellipticity, stellar mass and Sérsic index distributions with spiral galaxies shows that the rotationally supported S0s with $v/σ$ above 0.5 are more consistent with a faded spiral origin. In addition, a simulated merger pathway involving a compact elliptical and gas-rich satellite results in an S0 that lies within the pressure-supported group. We conclude that two S0 formation pathways are active, with mergers dominating in isolated galaxies and small groups, and the faded spiral pathway being most prominent in large groups ($10^{13} < M_{halo} < 10^{14}$).
description: 14 pages, 12 figures, accepted for publication in MNRAS
Sixth-Century Fragments of an East-Syrian Anaphora
Creators: name: Connolly, R. Hugh
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 20 (1922): Oriens christianus, Band 20/22
Cosmogenic Neutrinos from Cosmic Ray Interactions with Extragalactic Infrared Photons
Creators: name: De Marco, Daniel
name: Stanev, Todor
name: Stecker, F. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the production of cosmogenic neutrinos on extragalactic infrared photons in a model of its cosmological evolution. The relative importance of these infrared photons as a target for proton interactions is significant, especially in the case of steep injection spectra of the ultrahigh energy cosmic rays. For an E$^{-2.5}$ cosmic ray injection spectrum, for example, the event rate of neutrinos of energy above 1 PeV is more than doubled.
description: Seven pages, 9 postscript figures, uses revtex4
Gravitational Waves from Pati-Salam Dynamics
Creators: name: Huang, Wei-Chih
name: Sannino, Francesco
name: Wang, Zhi-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that it is possible to use gravitational wave detectors to observe the occurrence of a first order phase transition in Pati-Salam extensions of the Standard Model. We show that the peak frequency of the expected gravitational wave signals ranges within $0.1-10$ Hz. We find amusing that the next generation of gravity waves detectors are able to explore time honoured extensions of the Standard Model occurring at energy scales inaccessible by present and future particle physics accelerators.
description: 12 pages, 6 figures
The enteroinsular axis in glucose dependent insulinotropic polypeptide receptor knockout (GIPR-/-) miee
Creators: name: Pamir, Nathalie
Publisher: name: University of British Columbia
Year: 2009

description: The incretins, glucose-dependent insulinotropic polypeptide (GIP) and glucagonlike peptide-1 (GLP-1), are gut hormones that act via the enteroinsular axis to potentiate insulin secretion from the pancreas in a glucose-dependent manner. Both GLP-1 and GIP receptor knockout mice (GLP-1 R-/- and GIPR-/- respectively) have been generated to investigate the physiological importance of this axis. Studies in this thesis were carried out on GIP receptor knockout mice (GIPR-/-). Although reduced GIP action is a component of type 2 diabetes, GIP receptor-deficient mice exhibit only moderately impaired glucose tolerance. Thus, the present thesis was directed at investigating possible compensatory mechanisms that take place within the enteroinsular axis in the absence of GIP action. Fasting and 20t h minute OGTT serum GIP levels as well as duodenojejunal GIP content were altered in GIPR-/- mice. Total serum GLP-1 levels and serum DPIV activity in GIPR knockout mice were not significantly different from those in control animals, either before or during a glucose tolerance test. However, insulin responses to GLP-1 in pancreas perfusions and static islet incubations were significantly greater in GIPR -/- than in +/+ mice (P<0.05), and GLP-1 induced cAMP production was also elevated in the pancreatic islets of the knockout animals (P<0.05). Additionally, pancreatic insulin content and insulin gene expression were reduced in GIPR-/- mice compared to wild type (+/+) mice (P< 0.05). There was, however, no discernible difference in GLP-1 receptor mRNA levels. Immunohistochemistry studies revealed a normal distribution and localization of endocrine cells within the pancreatic islets of GIPR-/- mice. Surprisingly, these studies showed an increase in islet area, when compared to total pancreatic area, in the -/- mice (P<0.05) with less intense staining for insulin. In conclusion, the GIPR-/- mouse exhibits increased islet size and (3 cell sensitivity to GLP-1 despite a decrease in pancreatic insulin protein content and gene expression. These findings suggest a critical role for GIP in normal islet and (3 cell function and development.
Structural Regional Factors that Determine Absolute and Relative Accuracy of U.S. Regional Labor Market Forecasts
Creators: name: West, Carol Taylor
name: West, Carol Taylor
Publisher: name: Unknown
Year: 2003
Subjects: subject: forecasting accuracy
subject: panel data
subject: regional economies models

description: Panel data on regional employment forecasts from structural equation econometric models and time-series models are used to examine whether accuracy of the forecasts can be predicted, both absolutely and relatively. Specification of accuracy includes the time forecast was made, forecast horizon, and regional economic/demographic characteristics. The estimated model is able to predict accuracy of each forecast set at high step lengths but is less successful at low step lengths and is not successful at all in predicting relative accuracy. Regional characteristics are significant determinants of accuracy for both sets of forecasts, but the significant characteristics differ across methodologies and step lengths.
The hidden cost of using Amazon Mechanical Turk for research
Creators: name: Saravanos, A
name: Zervoudakis, S
name: Zheng, D
name: Stott, N
name: Hawryluk, B
name: Delfino, D
Publisher: name: Springer International Publishing
Year: 2021

description: In this study, we investigate the attentiveness exhibited by participants sourced through Amazon Mechanical Turk (MTurk), thereby discovering a significant level of inattentiveness amongst the platform’s top crowd workers (those classified as ‘Master’, with an ‘Approval Rate’ of 98% or more, and a ‘Number of HITS approved’ value of 1,000 or more). A total of 564 individuals from the United States participated in our experiment. They were asked to read a vignette outlining one of four hypothetical technology products and then complete a related survey. Three forms of attention check (logic, honesty, and time) were used to assess attentiveness. Through this experiment we determined that a total of 126 (22.3%) participants failed at least one of the three forms of attention check, with most (94) failing the honesty check – followed by the logic check (31), and the time check (27). Thus, we established that significant levels of inattentiveness exist even among the most elite MTurk workers. The study concludes by reaffirming the need for multiple forms of carefully crafted attention checks, irrespective of whether participant quality is presumed to be high according to MTurk criteria such as ‘Master’, ‘Approval Rate’, and ‘Number of HITS approved’. Furthermore, we propose that researchers adjust their proposals to account for the effort and costs required to address participant inattentiveness.
Community Watershed Management in Semi-Arid India: The State of Collective Action and its Effects on Natural Resources and Rural Livelihood
Creators: name: Shiferaw, Bekele A.
name: Kebede, Tewodros A.
name: Reddy, V. Ratna
name: Shiferaw, Bekele A.
name: Kebede, Tewodros A.
name: Reddy, V. Ratna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: collective action
subject: institutions
subject: property rights
subject: watershed management
subject: poverty
subject: environmental impacts

description: Spatial and temporal attributes of watersheds and the associated market failures that accelerate degradation of agricultural and environmental resources require innovative institutional arrangements for coordinating use and management of resources. Effective collective action (CA) allows smallholder farmers to jointly invest in management practices that provide collective benefits in terms of economic and sustainability gains. The Government of India takes integrated watershed management (IWM) as a key strategy for improving productivity and livelihoods in the rain-fed and drought-prone regions. This study investigates the institutional and policy issues that limit effective participation of people in community watershed programs and identifies key determinants for the degree of CA and its effectiveness in achieving economic and environmental outcomes. We use empirical data from a survey of 87 watershed communities in semi-arid Indian villages to identify a set of indicators of CA and its performance in attaining desired outcomes. Factor analysis is used to develop aggregate indices of CA and its effectiveness. Regression methods are then employed to test the effects of certain policy relevant variables and to determine the potential effects of CA in achieving desired poverty reduction and resource improvement outcomes. We find a positive and highly significant effect of CA on natural resource investments, but no evidence of its effects on household assets and poverty reduction outcomes. This may be attributable to longer gestation periods for realizing indirect effects from collective natural resource investments and the lack of institutional mechanisms to ensure equitable distribution of such gains across the community, including the landless and marginal farmers.
N=4 Superconformal Symmetry for the Covariant Quantum Superstring
Creators: name: Grassi, P. A.
name: van Nieuwenhuizen, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend our formulation of the covariant quantum superstring as a WZNW model with N=2 superconformal symmetry to N=4. The two anticommuting BRST charges in the N=4 multiplet of charges are the usual BRST charge Q_S and a charge Q_V proposed by Dijkgraaf, Verlinde and Verlinde for topological models. Using our recent work on "gauging cosets", we then construct a further charge Q_C which anticommutes with Q_S + Q_V and which is intended for the definition of the physical spectrum.
description: LaTeX, 18 pages, no figures
The 2019/20 Australian wildfires generated a persistent smoke-charged vortex rising up to 35 km altitude
Creators: name: Khaykin, Sergey
name: Legras, Bernard
name: Bucci, Silvia
name: Sellitto, Pasquale
name: Isaksen, Lars
name: Tence, Florent
name: Bekki, Slimane
name: Bourassa, Adam
name: Rieger, Landon
name: Zawada, Daniel
name: Jumelet, Julien
name: Godin-Beekman, Sophie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The Australian bushfires around the turn of the year 2020 generated an unprecedented perturbation of stratospheric composition, dynamical circulation and radiative balance. Here we show from satellite observations that the resulting planetary-scale blocking of solar radiation by the smoke is larger than any previously documented wildfires and of the same order as the radiative forcing produced by moderate volcanic eruptions. A striking effect of the solar heating of an intense smoke patch was the generation of a self-maintained anticyclonic vortex measuring 1000 km in diameter and featuring its own ozone hole. The highly stable vortex persisted in the stratosphere for over 13 weeks, travelled 66,000 km and lifted a confined bubble of smoke and moisture to 35 km altitude. Its evolution was tracked by several satellite-based sensors and was successfully resolved by the European Centre for Medium-Range Weather Forecasts operational system, primarily based on satellite data. Because wildfires are expected to increase in frequency and strength in a changing climate, we suggest that extraordinary events of this type may contribute significantly to the global stratospheric composition in the coming decades.
description: to appear in Communications Earth & Environment
On nonanticommutative N=2 sigma-models in two dimensions
Creators: name: Alvarez-Gaume, Luis
name: Vazquez-Mozo, Miguel A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study nonanticommutative deformations of N=2 two-dimensional Euclidean sigma models. We find that these theories are described by simple deformations of Zumino's Lagrangian and the holomorphic superpotential. Geometrically, this deformation can be interpreted as a fuzziness in target space controlled by the vacuum expectation value of the auxiliary field. In the case of nonanticommutative deformations preserving Euclidean invariance, we find that a continuation of the deformed supersymmetry algebra to Lorentzian signature leads to a rather intriguing central extension of the ordinary (2,2) superalgebra.
description: 29 pages. Typos corrected and references added
Universality and exact finite-size corrections for spanning trees on cobweb and fan networks
Creators: name: Izmailian, Nickolay
name: Kenna, Ralph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Universality is a cornerstone of theories of critical phenomena. It is well understood in most systems especially in the thermodynamic limit. Finite-size systems present additional challenges. Even in low dimensions, universality of the edge and corner contributions to free energies and response functions is less well understood. The question arises of how universality is maintained in correction-to-scaling in systems of the same universality class but with very different corner geometries. 2D geometries deliver the simplest such examples that can be constructed with and without corners. To investigate how the presence and absence of corners manifest universality, we analyze the spanning tree generating function on two finite systems, namely the cobweb and fan networks. We address how universality can be delivered given that the finite-size cobweb has no corners while the fan has four. To answer, we appeal to the Ivashkevich-Izmailian-Hu approach which unifies the generating functions of distinct networks in terms of a single partition function with twisted boundary conditions. This unified approach shows that the contributions to the individual corner free energies of the fan network sum to zero so that it precisely matches that of the web. Correspondence in each case with results established by alternative means for both networks verifies the soundness of the algorithm. Its range of usefulness is demonstrated by its application to hitherto unsolved problems-namely the exact asymptotic expansions of the logarithms of the generating functions and the conformal partition functions for fan and cobweb geometries. Thus, the resolution of a universality puzzle demonstrates the power of the algorithm and opens up new applications in the future.
description: This article belongs to the Special Issue Phase Transitions and Emergent Phenomena: How Change Emerges through Basic Probability Models. This special issue is dedicated to the fond memory of Prof. Ian Campbell who has contributed so much to our understanding of phase transitions and emergent phenomena
LANGUAGE INTERFERENCE AND CONTRASTIVE ANALYSIS HYPOTHESIS IN TEACHING FOREIGN LANGUAGE
Creators: name: Uzganova, Dilnoza
name: Jalolov, Sherali
Publisher: name: Zenodo
Year: 2024

description: This study is devoted to the concepts of interference and transference in the linguodidactic aspect. In the first part of the work, the author examines the main manifestations of interlingual and intralingual interference at different language levels, analyzes the opinions of methodologists on this issue.
Full Supplementary Material from Among-individual and within-individual variation in seasonal migration covaries with subsequent reproductive success in a partially migratory bird
Creators: name: Reid, Jane M.
name: Souter, Moray
name: Fenn, Sarah R.
name: Acker, Paul
name: Payo-Payo, Ana
name: Burthe, Sarah J.
name: Wanless, Sarah
name: Daunt, Francis
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Further details of study system, data and analyses
Enabling Equitable Collective Action and Policy Change for Poverty Reduction and Improved Natural Resource Management in the Eastern African Highlands
Creators: name: German, Laura
name: Mazengia, Waga
name: Tirwomwe, Wilberforce
name: Ayele, Shenkut
name: Tanui, Joseph
name: Nyangas, Simon
name: Begashaw, Leulseged
name: Taye, Hailemichael
name: Admassu, Zenebe
name: Tsegaye, Mesfin
name: Alinyo, Francis
name: Mekonnen, Ashenafi
name: Aberra, Kassahun
name: Chemangei, Awadh
name: Cheptegei, William
name: Tolera, Tesema
name: Jote, Zewude
name: Bedane, Kiflu
name: German, Laura
name: Mazengia, Waga
name: Tirwomwe, Wilberforce
name: Ayele, Shenkut
name: Tanui, Joseph
name: Nyangas, Simon
name: Begashaw, Leulseged
name: Taye, Hailemichael
name: Admassu, Zenebe
name: Tsegaye, Mesfin
name: Alinyo, Francis
name: Mekonnen, Ashenafi
name: Aberra, Kassahun
name: Chemangei, Awadh
name: Cheptegei, William
name: Tolera, Tesema
name: Jote, Zewude
name: Bedane, Kiflu
Publisher: name: Unknown
Year: 2008
Subjects: Food Security and Poverty
Resource /Energy Economics and Policy

description: The role of local and external institutions in natural resource management (NRM) is gaining attention in the literature, fostering greater understanding of the relationship between collective action and poverty, collective action and equity, and the conditions under which collective action institutions take root. It has also led to increased understanding of how uncritical practices by external development institutions can propagate social inequities in NRM. Yet little research has been conducted to understand how to foster local collective action institutions where they are absent, or to improve institutional practice. This research integrates empirical and action research in an effort to generate working solutions to problems facing rural communities in their efforts to manage their natural resources in the highlands of Ethiopia and Uganda. Following a brief introduction to the literature and the research, findings are presented according to two distinct phases of research. Data are first presented on existing forms of collective action, the influence of local and external institutions on economic development, and NRM problems that persist despite their negative livelihood consequences. Action research themes selected from a list of identified problems are then presented in greater detail, with lessons learnt thus far in attempting to overcome institutional barriers to improved NRM. The paper concludes with a discussion of the implications of findings for research, institutional practice, and policy.
Non-critical, near extremal AdS_6 background as a holographic laboratory of four dimensional YM theory
Creators: name: Kuperstein, S.
name: Sonnenschein, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study certain properties of the low energy regime of a theory which resembles four dimensional YM theory in the framework of a non-critical holographic gravity dual. We use for the latter the near extremal $AdS_6$ non-critical SUGRA. We extract the glueball spectra that associates with the fluctuations of the dilaton, one form and the graviton and compare the results to those of the critical near extremal $D4$ model and lattice simulations. We show an area law behavior for the Wilson loop and screening for the 't Hooft loop. The Luscher term is found to be $-{3/24}\frac π{L}$. We derive the Regge trajectories of glueballs associated with the spinning folded string configurations.
description: 25 pages, JHEP style
The Transformation of the Afar Commons in Ethiopia: State Coercion, Diversification, and Property Rights Change among Pastoralists
Creators: name: Hundie, Bekele
name: Padmanabhan, Martina Aruna
name: Hundie, Bekele
name: Padmanabhan, Martina Aruna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: traditional property rights
subject: pastoralists
subject: introduction of farming
subject: common property
subject: drought

description: The major economic activity for pastoralists is animal husbandry. The harsh environment in which herders raise their livestock requires constant mobility to regulate resource utilization via a common property regime. In contrast to the mobile way of life characterizing pastoralism, agriculture as a sedentary activity is only marginally present in the lowlands of the Afar regional state in Ethiopia. Nevertheless, this study reveals a situation where the traditional land–use arrangements in Afar are being transformed due to the introduction of farming. In the past, the Imperial and the Socialist governments introduced large–scale agriculture in a coercive manner, thereby instigating massive resistance from the pastoralists. Currently, the recurrence of drought in the study areas has facilitated the subdivision of the communal land on a voluntary basis for the purpose of farming. Qualitative and quantitative analysis highlight the drivers, both coercive and non–coercive, of the transformation of traditional property rights of Afar pastoralists.
Symmetry breaking in binary Bose-Einstein condensates in the presence of an inhomogeneous artificial gauge field
Creators: name: Hejazi, S. Sahar S.
name: Polo, Juan
name: Sachdeva, Rashi
name: Busch, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a two component Bose-Einstein condensate in the presence of an inhomogeneous artificial gauge field. In response to this field, the condensate forms a localised vortex lattice structure that leads to a non-trivial symmetry breaking in the phase separated regime. The underlying physical mechanism can be understood by considering the energy landscape and we present a simplified model that is capable of reproducing the main features of the phase separation transition. The intuition gained by numerically solving this simplified model is then corroborated using the analytical Thomas-Fermi model.
supplementary information from Vaccinating behaviour guided by imitation and aspiration
Creators: name: Md. Rajib Arefin
name: Tanaka Masaki
name: Tanimoto, Jun
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 19999 Mathematical Sciences not elsewhere classified

description: This file includes the detailed derivation of Eq. (9) in the main text (section A). It also provides the source code (c++) of the numerical simulation (section B).
Unmaking the Commons: Collective Action, Property Rights, and Resource Appropriation among (Agro-) Pastoralists in Eastern Ethiopia
Creators: name: Beyene, Fekadu
name: Korf, Benedikt
name: Beyene, Fekadu
name: Korf, Benedikt
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: pastoralism
subject: collective action
subject: property rights
subject: conflict
subject: Ethiopia
subject: water management
subject: rangelands management

description: In Ethiopian development policies, pastoralist areas have recently attracted more attention. However, much debate and policy advice is still based on assumptions that see a sedentary lifestyle as the desirable development outcome for pastoralist communities. This paper investigates current practices of collective action and how these are affected by changing property rights in the pastoralist and agro– pastoralist economies of three selected sites in eastern Ethiopia. We describe forms of collective action in water and pasture resource management and analyze how changing property rights regimes affect incentives for collective action. We illustrate the distributional effects these practices are having on (agro–) pastoralist communities and how these practices are being influenced by the broader political and economic dynamisms of the area.
Charm contribution to ultrahigh-energy neutrinos from newborn magnetars
Creators: name: Carpio, Jose Alonso
name: Murase, Kohta
name: Reno, Mary Hall
name: Sarcevic, Ina
name: Stasto, Anna
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Newborn, strongly magnetized neutron stars (so-called magnetars) surrounded by their stellar or merger ejecta are expected to be sources of ultrahigh-energy neutrinos via decay of mesons produced in hadronic interactions of protons which are accelerated to ultrahigh energies by magnetic dissipation of the spindown energy. We show that not only pions and kaons but also charm hadrons, which are typically neglected due to their small production cross sections, can represent dominant contributions to neutrino fluence at ultrahigh energies, because of their short lifetimes, while the ultrahigh-energy neutrino fluence from pion and kaon production is suppressed at early times due to their significant cooling before their decay. We show that the next-generation detectors such as Probe Of Extreme Multi-Messenger Astrophysics (POEMMA), Giant Radio Array for Neurtino Detection (GRAND) and IceCube-Gen2 have a good chance of observing neutrinos, primarily originating from charm hadrons, from nearby magnetars. We also show that neutrinos from nearby magnetar-driven merger novae could be observed in the time interval between $10^2$ s and $10^3$ s, where the charm hadron contribution is dominant for neutrino energies above $10^8$ GeV, of relevance to next generation detectors. We also comment on potential impacts of the charm hadron contribution to the diffuse neutrino flux.
description: 13 pages, 7 figures. Accepted for publication in PRD
Entanglement distillation using particle statistics
Creators: name: Huang, H. L.
name: Cheng, L. H.
name: Yi, X. X.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the idea of entanglement concentration for pure states(Phys. Rev. Lett. {\bf 88}, 187903) to the case of mixed states. The scheme works only with particle statistics and local operations, without the need of any other interactions. We show that the maximally entangled state can be distilled out when the initial state is pure, otherwise the entanglement of the final state is less than one. The distillation efficiency is a product of the diagonal elements of the initial state, it takes the maximum 50%, the same as the case for pure states.
description: 3 pages, 1 figure
Creation of a brane world with Gauss-Bonnet term
Creators: name: Aoyanagi, Koh-suke
name: Maeda, Kei-ichi
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a creation of a brane world using an instanton solution. We analyze a brane model with a Gauss-Bonnet term in a bulk spacetime. The curvature of 3-brane is assumed to be closed, flat, or open. We construct instanton solutions with branes for those models, and calculate the value of the actions to discuss an initial state of a brane universe.
description: 9 pages, 10 figures
Andgaaende Mag. Niels Svendsens Chroniche
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1750

description: N. Svendsen ble lector theol. i Chra i 1639, men måtte nedlegge embetet 1653. Ble av konsistoriet i 1655 dømt til landsforvisning. Han døde i Amsterdam. Se også Pontoppidans Annaler.
description: Kopi.
Spin half fermions with mass dimension one: theory, phenomenology, and dark matter
Creators: name: Ahluwalia-Khalilova, D. V.
name: Grumiller, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide the first details on the unexpected theoretical discovery of a spin-one-half matter field with mass dimension one. It is based upon a complete set of dual-helicity eigenspinors of the charge conjugation operator. Due to its unusual properties with respect to charge conjugation and parity, it belongs to a non-standard Wigner class. Consequently, the theory exhibits non-locality with (CPT)^2 = - I. We briefly discuss its relevance to the cosmological `horizon problem'. Because the introduced fermionic field is endowed with mass dimension one, it can carry a quartic self-interaction. Its dominant interaction with known forms of matter is via Higgs, and with gravity. This aspect leads us to contemplate the new fermion as a prime dark matter candidate. Taking this suggestion seriously we study a supernova-like explosion of a galactic-mass dark matter cloud to set limits on the mass of the new particle and present a calculation on relic abundance to constrain the relevant cross-section. The analysis favours light mass (roughly 20 MeV) and relevant cross-section of about 2 pb. Similarities and differences with the WIMP and mirror matter proposals for dark matter are enumerated. In a critique of the theory we bare a hint on non-commutative aspects of spacetime, and energy-momentum space.
description: 78 pages [Changes: referee-suggested improvements, additional important references, and better readability]