cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
UBC Farm chicken shelter
Creators: name: Bailey, Zach
name: Pawlowski, Aleksandra
name: Jaoude, Hady Abou
name: Guo, Di Hao (Derek)
name: Hosford, James
name: Burgin, Andrew
name: Cheung, Julian
Publisher: name: The University of British Columbia
Year: 2012

description: UBC Farm is currently in need of a moveable chicken coop that is intended to house 12 chickens. The chicken coop is to provide shelter, a place to lay eggs, and a small area to graze for the chickens. A seven‐person UBC Civil Engineering (CSL) team has been asked to design and construct a chicken coop that, in addition to being moveable, would take on a dollhouse‐like design. The size, durability, and materials used for the coop must meet the requirements stated by the client. In order for the chicken coop to be certified organic, there are certain size and material criterion that must be conformed to. The approximate size of the chicken coop is to be 55 square feet, where 25 square feet are allotted for the indoor portion, while the remaining space, including that below the raised coop, will make up the run. The estimated cost of the project is $340.33. In designing this project, size constraints were considered in great detail. As it is intended to be moveable as well as easily accessible, the final design had to be both small and light, while still adhering to Organic Standards. This report provides detailed designs and explanations of all aspects of the chicken coop to be built for UBC Farm. Dates for build have been selected and the client has seen and approved the recommended coop design. Construction of the shelter is currently scheduled for January of 2011 with materials ordered from manufactures and collected from the Farm. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
CP asymmetry from hadronic charm rescattering in $B^\pm \to π^-π^+π^\pm$ decays at the high mass region
Creators: name: Bediaga, I.
name: Frederico, T.
name: Magalhaes, P. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A model for the $B^\pm \to π^-π^+π^\pm$ decay amplitude is proposed to study the large CP violation observed at the high mass region of the Dalitz plane. A short distance $ b \to u $ amplitude with the weak phase $γ$ is considered together with the contribution of a hadronic charm loop and a s-wave $D\bar{D}\to ππ$ rescattering. In the model, the $χ_c^0$ appears as a narrow resonant state of the $D\bar D$ system below threshold. It is introduced in an unitary two channel S-matrix model of the coupled $D\bar D$ and $ππ$ channels, where the $χ_c^0$ complex pole in $D\bar D$ channel shows its signature in the off-diagonal matrix element and in the associated $D\bar{D}\to ππ$ transition amplitude. The strong phase of the resulting decay amplitude has a sharp sign change at the $D\bar D$ threshold, changing the sign of the CP asymmetry, as it is observed in the data. We conclude that the hadronic charm loop and rescattering mechanism are relevant to the broadening of the CP asymmetry around the $χ_c^0$ resonance in the $ππ$ channel. This novel mechanism provides a possible interpretation of the CP asymmetry defier experimental result presented by the LHCb collaboration for the $B^\pm \to π^-π^+π^\pm$ decay in the high mass region.
Prevalence of X-ray variability in the Chandra Deep Field South
Creators: name: Paolillo, M.
name: Schreier, E. J.
name: Giacconi, R.
name: Koekemoer, A. M.
name: Grogin, N. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We studied the X-ray variability of sources detected in the Chandra Deep Field South (Giacconi et al. 2002), nearly all of which are low to moderate z AGN (Tozzi et al. 2001). We find that 45% of the sources with >100 counts exhibit significant variability on timescales ranging from a day up to a year. The fraction of sources found to be variable increases with observed flux, suggesting that >90% of all AGNs possess intrinsic variability. We also find that the fraction of variable sources appears to decrease with increasing intrinsic absorption; a lack of variability in hard, absorbed AGNs could be due to an increased contribution of reflected X-rays to the total flux. We do not detect significant spectral variability in the majority (~70%) of our sources. In half of the remaining 30%, the hardness ratio is anti-correlated with flux, mimicking the high/soft-low/hard states of galactic sources. The X-ray variability appears anti-correlated with the luminosity of the sources, in agreement with previous studies. High redshift sources, however, have larger variability amplitudes than expected from extrapolations of their low-z counterparts, suggesting a possible evolution in the accretion rate and/or size of the X-ray emitting region. Finally, we discuss some effects that may produce the observed decrease in the fraction of variable sources from z=0.5 out to z=2.
description: 24 pages, including 15 figures and 1 table. In press on ApJ
Platonicons: the Platonic solids start rolling
Creators: name: Seaton, Katherine A.
name: Hirsch, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 52B05

description: We describe the construction of a new family of developable rollers based on the Platonic solids. In this way kinetic sculptures may be realised, with the Platonic solids quite literally in their heart. We also describe the strong way in which the Platonicons circumscribe the Platonic solids.
description: 4 pages, 5 figures, submitted for Bridges Helsinki 2020; revised version after reviewing
Inferences from Bose-Einstein correlations in multiple particle production processes
Creators: name: Zalewski, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Data on Bose-Einstein correlations yield information about the interaction regions in multiple particle production processes. The conclusions are model dependent. Several popular models are briefly presented, compared and discussed.
description: Latex, 9 pages, no figures
Agrilus mrazi
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus mrazi

description: Agrilus mrazi (Obenberger, 1933)
 Paradomorphus mrazi Obenberger, 1933b: 152.
 Material examinado: BRASIL, São Paulo, São Paulo (Cantareira), 1 ex., XI.1951, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on pages 94-95, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Additional file 3 of Effect of xenon and dexmedetomidine as adjuncts for general anesthesia on postoperative emergence delirium after elective cardiac catheterization in children: study protocol for a randomized, controlled, pilot trial
Creators: name: Devroe, Sarah
name: Devriese, Lisa
name: Debuck, Frederik
name: Fieuws, Steffen
name: Cools, Bjorn
name: Gewillig, Marc
name: Velde, Marc Van De
name: Rex, Steffen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Informed consent.
K_{e3} decays and CKM unitarity
Creators: name: Cirigliano, V.
name: Neufeld, H.
name: Pichl, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed numerical study of the K_{e3} decays to O(p^6,(m_d-m_u)p^2,e^2p^2) in chiral perturbation theory with virtual photons and leptons. We describe the extraction of the CKM matrix element |V_{us}| from the experimental K_{e3} decay parameters. We propose a consistency check of the K^+_{e3} and K^0_{e3} data that is largely insensitive to the dominating theoretical uncertainties, in particular the contributions of order p^6. Our analysis is highly relevant in view of the recent high statistics measurement of the K^+_{e3} branching ratio by E865 at Brookhaven which does not indicate any significant deviation from CKM unitarity but rather a discrepancy with the present K^0_{e3} data.
description: 13 pages, 2 figures, uses EPJC macros
Consistent inflationary cosmology from quadratic gravity with dynamical torsion
Creators: name: Aoki, Katsuki
name: Mukohyama, Shinji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The idea of gauge theories of gravity predicts that there should exist not only the massless graviton but also massive particles carrying the gravitational force. We study the cosmology in a quadratic gravity with dynamical torsion where gravity may be interpreted as a gauge force associated with the Poincaré group. In addition to the massless spin-2 graviton, the model contains four non-ghost massive particle species: a couple of spin-0, a spin-1 and a spin-2. Supposing the restoration of the local Weyl invariance in the UV limit and the parity invariance, we find the most general minisuperspace action describing a homogeneous and isotropic universe with a flat spatial geometry. We then transform the minisuperspace action to a quasi-Einstein frame in which the field space is a hyperboloid and the field potential is a combination of those of a Starobinsky-like inflation and a natural inflation. Remarkably, thanks to the multi-field dynamics, the Starobinsky-like inflationary trajectory can be realized even if the initial condition is away from the top of the Starobinsky-like potential. We also study linear tensor perturbations and find qualitatively different features than the Starobinsky inflation, spontaneous parity violation and mixing of the massless and massive spin-2 modes, which might reveal the underlying nature of gravity through inflationary observables.
description: 35 pages, 5 figures, published version
TIDAK ADA YANG PASTI DI DUNIA INI, KECUALI KEMATIAN DAN PAJAK
Creators: name: Winarto, Amos
Publisher: name: figshare
Year: 2021
Subjects: subject: 220199 Applied Ethics not elsewhere classified
subject: FOS: Philosophy, ethics and religion
subject: 220105 Legal Ethics

description: One underlying question on the ethics of taxation is what makes a tax system just and fair? This article will ethically and philosophically deal with civil freedom, justice, and equity in relation to taxation. Especially, for Christians, the Scripture gives the foundation of believers' responsibility in paying taxes even when taxes required by the government are neither just nor fair.
Satu pertanyaan dasar tentang etika perpajakan adalah apa yang membuat pajak atau sistem pajak itu adil dan pantas? Artikel ini akan meninjau secara filosofis-etis kebebasan warga negara dan keadilan serta kepantasan dalam perpajakan. Dan secara khusus bagi orang Kristen, Alkitab akan digunakan sebagai dasar untuk menunjukkan tanggung jawab orang percaya dalam membayar pajak bahkan ketika pajak yang ditetapkan oleh pemerintah itu ternyata secara etis tidak adil dan/atau tidaklah pantas.
Additional file 3 of A different vision of translational research in biomarker discovery: a pilot study on circulatory mitochondrial proteins as Parkinson’s disease potential biomarkers
Creators: name: Anjo, Sandra I.
name: Santos, Patrícia Valério Dos
name: Rosado, Luiza
name: Baltazar, Graça
name: Baldeiras, Inês
name: Pires, Diana
name: Gomes, Andreia
name: Januário, Cristina
name: Castelo-Branco, Miguel
name: Grãos, Mário
name: Manadas, Bruno
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry

description: Additional file 3: Supplementary Table 1. Data of patients and control individuals included in the discovery study.
Agrilus quattuordecimsignatus Obenberger 1935
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus quattuordecimsignatus

description: Agrilus quattuordecimsignatus Obenberger, 1935
 Agrilus quattuordecimsignatus Obenberger, 1935: 111.
 Material examinado: BRASIL, São Paulo, São Paulo (Cantareira), 1 ex., XI.1951, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on pages 95-96, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
A minimax approach for inverse variational inequalities
Creators: name: López, Pablo Montiel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this work, we characterize the existence of solution for a certain variational inequality by means of a classical minimax theorem. In addition, we propose a numerical algorithm for the solution of an inverse problem associated with a variational inequality. To this end we state a collage-type result in this variational framework.
Non-commutative Complex Projective Spaces and the Standard Model
Creators: name: Dolan, Brian P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The standard model fermion spectrum, including a right handed neutrino, can be obtained as a zero-mode of the Dirac operator on a space which is the product of complex projective spaces of complex dimension two and three. The construction requires the introduction of topologically non-trivial background gauge fields. By borrowing from ideas in Connes' non-commutative geometry and making the complex spaces `fuzzy' a matrix approximation to the fuzzy space allows for three generations to emerge. The generations are associated with three copies of space-time. Higgs' fields and Yukawa couplings can be accommodated in the usual way.
description: Contribution to conference in honour of A.P. Balachandran's 65th birthday: "Space-time and Fundamental Interactions: Quantum Aspects", Vietri sul Mare, Italy, 25th-31st May, 2003, 10 pages, typset in LaTeX
Towards a general parametrization of the warm dark matter halo mass function
Creators: name: Lovell, Mark R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Studies of flux anomalies statistics and perturbations in stellar streams have the potential to constrain models of warm dark matter (WDM), including sterile neutrinos. Producing these constraints requires a parametrization of the WDM mass function relative to that of the cold dark matter (CDM) equivalent. We use five WDM models with half-mode masses, $M_\mathrm{hm}=[1.3,35]\times10^{8}$~$M_{\odot}$, spread across simulations of the Local Group, lensing ellipticals and the $z=2$ universe, to generate such a parametrization: we fit parameters to a functional form for the WDM-to-CDM halo mass function ratio, $n_\mathrm{WDM}(M_{X})/n_\mathrm{CDM}(M_{X})$, of ($1+(αM_\mathrm{hm}/M_{X})^β)^γ$. For $M_{X}\equiv$ virial mass of central halos we obtain $α=2.3$, $β=0.8$, and $γ=-1.0$, and this fit is steeper than the extended Press-Schechter formalism predicts. For $M_{X}\equiv$ mass of subhalos we instead obtain $α=4.2$, $β=2.5$ and $γ=-0.2$; in both mass definitions the scatter is $\sim20$~per~cent. The second fit typically underestimates the relative abundance of $z=2$ WDM subhaloes at the tens of per cent level. We caution that robust constraints will require bespoke simulations and a careful definition of halo mass, particularly for subhalos of mass $<10^{8}M_{\odot}$.
description: Replacing original ApJL submission with accepted ApJ version. 9 pages, 4 figures. Contact: lovell@hi.is
Reconstructing large running-index inflaton potentials
Creators: name: Chen, Chiyi
name: Feng, Bo
name: Wang, Xiulian
name: Yang, Zhaoyu
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent fits of cosmological parameters by the first year Wilkinson Microwave Anisotropy Probe (WMAP) measurement seem to favor a primordial scalar spectrum with a large varying index from blue to red. We use the inflationary flow equations to reconstruct large running-index inflaton potentials and comment on current status on the inflationary flow. We find previous negligence of higher order slow rolling contributions when using the flow equations would lead to unprecise results.
description: Final version to appear in Class. Quant. Grav. References added
The UBC food system project : summary 2010
Creators: name: Baker-French, Sophia
name: Richer, Liska
Publisher: name: The University of British Columbia
Year: 2012

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
The Radio Spectrum of TVLM513-46546: Constraints on the Coronal Properties of a Late M Dwarf
Creators: name: Osten, Rachel A.
name: Hawley, Suzanne L.
name: Bastian, Timothy S.
name: Reid, I. Neill
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the radio emission from the M9 dwarf, TVLM513-46546, at multiple radio frequencies, determining the flux spectrum of persistent radio emission, as well as constraining the levels of circular polarization. Detections at both 3.6 and 6 cm provide spectral index measurement $α$ (where S$_ν \propto ν^α$) of $-0.4\pm0.1$. A detection at 20 cm suggests that the spectral peak is between 1.4 and 5 GHz. The most stringent upper limits on circular polarization are at 3.6 and 6 cm, with $V/I
description: 11 pages, 2 figures Accepted for publication in the Astrophysical Journal
Additional file 2 of Effect of xenon and dexmedetomidine as adjuncts for general anesthesia on postoperative emergence delirium after elective cardiac catheterization in children: study protocol for a randomized, controlled, pilot trial
Creators: name: Devroe, Sarah
name: Devriese, Lisa
name: Debuck, Frederik
name: Fieuws, Steffen
name: Cools, Bjorn
name: Gewillig, Marc
name: Velde, Marc Van De
name: Rex, Steffen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. World Health Organization trial registration dataset.
The Soviet Market for Inventions: The Case of Jet Propulsion, 1932 to 1944
Creators: name: Harrison, Mark
name: Harrison, Mark
Publisher: name: Unknown
Year: 2001
Subjects: International Development
Research and Development/Tech Change/Emerging Technologies

description: The paper outlines the problem of aviation jet propulsion in the interwar period and World War II and analyses Soviet progress towards a solution using newly available archival documentation. Soviet R&D commitments were influenced by long–term security motivations and the need to invest in local tacit knowledge. The scale and diversity of the Soviet R&D effort is described. The allocation of resources resulted from R&D agents’ horizontally organised market–like interactions within a vertically organised command system. Financing decisions were made in a context of asymmetric information, adverse selection, and opportunism. Overall funding was rationed; budget constraints on individual projects were soft, but were periodically hardened. In addition to decisions to finance and refinance or terminate projects, takeovers and mergers took place in a secondary asset market. There is evidence of rent–seeking activity, but where rent–seeking was detected it was punished.
Diffusion of a particle in the Gaussian random energy landscape: Einstein relation and analytical properties of average velocity and diffusivity as functions of driving force
Creators: name: Novikov, S. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We demonstrate that the Einstein relation for the diffusion of a particle in the random energy landscape with the Gaussian density of states is an exclusive 1D property and does not hold in higher dimensions. We also consider the analytical properties of the particle velocity and diffusivity for the limit of weak driving force and establish connection between these properties and dimensionality and spatial correlation of the random energy landscape.
description: 19 pages, 5 figures
Additional file 2 of A different vision of translational research in biomarker discovery: a pilot study on circulatory mitochondrial proteins as Parkinson’s disease potential biomarkers
Creators: name: Anjo, Sandra I.
name: Santos, Patrícia Valério Dos
name: Rosado, Luiza
name: Baltazar, Graça
name: Baldeiras, Inês
name: Pires, Diana
name: Gomes, Andreia
name: Januário, Cristina
name: Castelo-Branco, Miguel
name: Grãos, Mário
name: Manadas, Bruno
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry

description: Additional file 2: Supplementary Figures. Document containing the following supporting images.
Force-free Electrodynamics and Foliations in an arbitrary Spacetime
Creators: name: Menon, Govind
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we formulate the relationship between force-free electrodynamics and foliations. The background metric, is considered predetermined and electrically neutral, but otherwise arbitrary. As it turns out, solutions to force-free electrodynamics is intimately connected to the existence of foliations of a spacetime with prescribed properties. We also prove a local existence and uniqueness theorem and provide a recipe for constructing the unique solution/class of solutions when certain conditions are met. We clarify the theorem with examples. We are also able to also prove a singularity theorem for when non-null solutions approach the null limit. Here too, we construct an explicit example to illustrate the singularity theorem.
description: 11 pages
Plan, Siphoning, and Corruption in the Soviet Command Economy
Creators: name: Harrison, Mark
name: Kim, Byung-Yeon
name: Harrison, Mark
name: Kim, Byung-Yeon
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
International Development

description: This paper reconsiders Andrei Shleifer and Robert Vishny’s suggestion that a socialist industry will always prefer to cut both price and output relative to a market– clearing equilibrium in order to maximise bribe income. The evidence from recent archival studies of the Soviet economy does not support this conjecture. To understand the evidence we present an analytical framework within which a plan– setter and an effort–setter interact, subject to a hard resource constraint, to determine real output and hidden inflation simultaneously. We find that managers who use resources gained corruptly were enabled to produce more real output with less hidden inflation and fulfil the plan more honestly as a result. We find clear rationales for plan–setters to have tolerated corruption and siphoning while maintaining plan tension, and we associate reduced plan tension in the 1970s with the spread of disloyal behaviours.
A large X-ray flare from the Herbig Ae star V892 Tau
Creators: name: Giardino, G.
name: Favata, F.
name: Micela, G.
name: Reale, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the XMM-Newton observation of a large X-ray flare from the Herbig Ae star V892 Tau. The apparent low mass companion of V892 Tau, V892 Tau NE, is unresolved by XMM-Newton. Nevertheless there is compelling evidence from combined XMM-Newton and Chandra data that the origin of the flare is the Herbig Ae star V892 Tau. During the flare the X-ray luminosity of V892 Tau increases by a factor of ~15, while the temperature of the plasma increases from kT ~ 1.5 keV to kT ~ 8 keV. From the scaling of the flare event, based on hydrodynamic modeling, we conclude that a 500 G magnetic field is needed in order to confine the plasma. Under the assumptions that a dynamo mechanism is required to generate such a confining magnetic field and that surface convection is a necessary ingredient for a dynamo, our findings provide indirect evidence for the existence of a significant convection zone in the stellar envelope of Herbig Ae stars.
description: accepted for publication in A&A (12 pages - 6 figures)
Bimolecular Recombination of Charge Carriers in Polar Amorphous Organic Semiconductors: Effect of Spatial Correlation of the Random Energy Landscape
Creators: name: Novikov, S. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a simple model of the bimolecular charge carrier recombination in polar amorphous organic semiconductors where the dominant part of the energetic disorder is provided by permanent dipoles and show that the recombination rate constant could be much smaller than the corresponding Langevin rate constant. The reason for the strong decrease of the rate constant is the long range spatial correlation of the random energy landscape in amorphous dipolar materials, without spatial correlation even strong disorder does not modify the Langevin rate constant. Our study shows that the significant suppression of the bimolecular recombination could take place in homogeneous amorphous organic semiconductors and does not need large scale inhomogeneity of the material.
description: 28 pages 5 figures
The Role of Consumers in Competition and Competition Policy
Creators: name: Waterson, Michael
name: Waterson, Michael
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy
Consumer/Household Economics

description: This paper develops the idea that consumers’ behaviour matters significantly from the viewpoint of industry performance. This is examined through some theoretical propositions, but then at greater length by means of some case study examples. These examples demonstrate how, even in potentially competitive industries, reluctance on the part of consumers to search or to switch suppliers can lead to a sub-competitive outcome. The significance of non-traditional competition policy remedies in changing the outcome is drawn out.
Anomaly in the dielectric response at the charge orbital ordering transition of crystalline Pr0.67Ca0.33MnO3
Creators: name: Mercone, Silvana
name: Wahl, Alexandre
name: Pautrat, Alain
name: Pollet, Michael
name: Simon, Charles
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The complex impedance of a Pr0.67Ca0.33MnO3 crystal has been measured. The frequency dependence is studied for a wide range of temperatures (50K-403K) and is found to be characteristic of relaxation process with a single Debye time relaxation constant, which is interpreted as a dielectric constant of the material. A strong peak is observed in this dielectric constant (up to two millions) at the charge ordering transition suggesting an interpretation in terms of ordering of electric dipoles at TCO or in term of phase separation. Comparison with Pr0.63Ca0.37MnO3 - in which the phase separation is much smaller and the peak in the dielectric constant is absent - suggests an interpretation in term of phase separation between insulating and metallic states.
description: pdf file
Learning in Elections and Voter Turnout Equilibria
Creators: name: DeMichelis, Stefano
name: Dhillon, Amrita
name: DeMichelis, Stefano
name: Dhillon, Amrita
Publisher: name: Unknown
Year: 2001
Subjects: subject: Political Economy
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: Voter Participation
subject: Voter Learning
subject: Stable Equilibrium
subject: Asymptotically
subject: Markov chain
subject: long run equilibria

description: Both complete and incomplete game Theoretic Models of Voter Turnout (Palfrey and Rosenthal, 1983,1985) have the problem of multiple equilibria, some of which seem unreasonable. How can the counter intuitive high turnout equilibria be explained? Palfrey and Rosenthal (1985) suggest that the main reason is that strategic uncertainty is too low in a com- plete information model. We show that this is not the main problem with these equilibria{ incomplete information may exacerbate the problem of multiple equilibria. We propose a very intuitive criterion based on voter learning to distinguish reasonable equilibria. This paper makes precise the sense in which the high turnout equilibria in the Palfrey-Rosenthal model are not robust. We show how the model can be used to qualitatively explain several phenomena observed in reality.
Crystal growth and anisotropic transport properties of high-Tc superconductors Bi2Sr2Can-1CunO2n+4+d (n = 2, 3)
Creators: name: Watanabe, Takao
name: Fujii, Takenori
name: Matsuda, Azusa
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Large high-quality single crystals of Bi2Sr2Can-1CunO2n+4+d (n = 2, 3) were successfully grown using an improved traveling solvent floating zone (TSFZ) method, which features a slow growth rate and steep temperature gradient along the melting zone. By measuring anisotropic resistivities and susceptibilities of Bi2Sr2CaCu2O8+d, the characteristic pseudogap temperature T* was studied as a function of doping. The T* suggest that the pseudogap is not simply a precursor of high-Tc superconductivity, but that the pseudogap and the superconducting gap compete with each other. The anisotropic resistivities of Bi2Sr2Ca2Cu3O10+d were also measured, revealing that the Tc remains fixed in the overdoped region while anisotropy decreases continuously. This anomalous behavior will be discussed in terms of the inequivalent hole doping, which occurs between two inequivalent CuO2 planes in the triple-layer system.
description: 29 pages, 26 figures, a review paper
Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source
Creators: name: Ellis, John
name: Lewicki, Marek
name: No, José Miguel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We survey systematically the general parametrisations of particle-physics models for a first-order phase transition in the early universe, including models with polynomial potentials both with and without barriers at zero temperature, and Coleman-Weinberg-like models with potentials that are classically scale-invariant. We distinguish three possibilities for the transition - detonations, deflagrations and hybrids - and consider sound waves and turbulent mechanisms for generating gravitational waves during the transitions in these models, checking in each case the requirement for successful percolation. We argue that in models without a zero-temperature barrier and in scale-invariant models the period during which sound waves generate gravitational waves lasts only for a fraction of a Hubble time after a generic first-order cosmological phase transition, whereas it may last longer in some models with a zero-temperature barrier that feature severe supercooling. We illustrate the implications of these results for future gravitational-wave experiments.
description: 32 pages, 14 figures
Finite-Volume Form Factors in Semiclassical Approximation
Creators: name: Mussardo, G.
name: Riva, V.
name: Sotkov, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A semiclassical approach is used to obtain Lorentz covariant expressions for the form factors between the kink states of a quantum field theory with degenerate vacua. Implemented on a cylinder geometry it provides an estimate of the spectral representation of correlation functions in a finite volume. Illustrative examples of the applicability of the method are provided by the Sine-Gordon and the broken ϕ^4 theories in 1+1 dimensions.
description: 17 pages, latex, 1 figure
Соціально-економічна та екологічна стійкість коротких ланцюгів постачання: можливості для розвитку сільських територій
Social-economic and environmental sustainability of short supply chains: opportunities for development rural territories
Creators: name: Бабич, Микола
name: Бабич, Микола
Publisher: name: Unknown
Year: 2018
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: economic sustainability
subject: social sustainability
subject: environmental sustainability
subject: community
subject: rural development
subject: health and well-being
subject: farming
subject: Ukraine

description: The paper substantiates the expediency of developing short supply chains at the local level. The focus of this paper is to determine opportunities for developing rural territories in Ukraine on the basis of the development of short supply chains in terms of ensuring social, economic and environmental sustainability. It is established that such an approach provides stability of development of rural territory, in particular, it promotes: social interaction (trust, justice, solidarity and common values between consumers and producers), community development (just relationships, pride, social cohesion and community affiliation, strengthening local culture and identity), health and well-being of the population (healthy diet); access to healthy food, health improvement), which ensures social sustainability of the system; rural development and economic recovery (increase of workplaces, tourism development, increase of local incomes, development of small and medium-sized farms), achievement of economic benefits to farms (reduction of overheads, fixed margin and premium for quality, increase of competitiveness and economic viability, sustainable use resources), which ensures economic stability of the system; reducing energy consumption and carbon dioxide emissions (reducing transport and storage time; using alternative technologies; maximizing manual labor; reducing the use of plastic packaging; reducing food losses); sustainability of agro-systems (promoting agro-biodiversity; using local varieties; highlighting ecological and organic production), which ensures the ecological stability of the system.
Additional file 1 of Effect of xenon and dexmedetomidine as adjuncts for general anesthesia on postoperative emergence delirium after elective cardiac catheterization in children: study protocol for a randomized, controlled, pilot trial
Creators: name: Devroe, Sarah
name: Devriese, Lisa
name: Debuck, Frederik
name: Fieuws, Steffen
name: Cools, Bjorn
name: Gewillig, Marc
name: Velde, Marc Van De
name: Rex, Steffen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol.
UBC Student Union Building living wall design proposal
Creators: name: Wilson, Stephanie
name: Hilbrecht, Brittany
name: Li, Wen
name: Cowan, Jordan
name: Tran, Wilson
name: Ling, Jacky
Publisher: name: The University of British Columbia
Year: 2012

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Domain wall propagation and nucleation in a metastable two-level system
Creators: name: Fogedby, Hans C.
name: Hertz, John
name: Svane, Axel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a dynamical description and analysis of non-equilibrium transitions in the noisy one-dimensional Ginzburg-Landau equation for an extensive system based on a weak noise canonical phase space formulation of the Freidlin-Wentzel or Martin-Siggia-Rose methods. We derive propagating nonlinear domain wall or soliton solutions of the resulting canonical field equations with superimposed diffusive modes. The transition pathways are characterized by the nucleations and subsequent propagation of domain walls. We discuss the general switching scenario in terms of a dilute gas of propagating domain walls and evaluate the Arrhenius factor in terms of the associated action. We find excellent agreement with recent numerical optimization studies.
description: 28 pages, 16 figures, revtex style
The Fast Loaded Dice Roller: A Near-Optimal Exact Sampler for Discrete Probability Distributions
Creators: name: Saad, Feras A.
name: Freer, Cameron E.
name: Rinard, Martin C.
name: Mansinghka, Vikash K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation (stat.CO)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper introduces a new algorithm for the fundamental problem of generating a random integer from a discrete probability distribution using a source of independent and unbiased random coin flips. We prove that this algorithm, which we call the Fast Loaded Dice Roller (FLDR), is highly efficient in both space and time: (i) the size of the sampler is guaranteed to be linear in the number of bits needed to encode the input distribution; and (ii) the expected number of bits of entropy it consumes per sample is at most 6 bits more than the information-theoretically optimal rate. We present fast implementations of the linear-time preprocessing and near-optimal sampling algorithms using unsigned integer arithmetic. Empirical evaluations on a broad set of probability distributions establish that FLDR is 2x-10x faster in both preprocessing and sampling than multiple baseline algorithms, including the widely-used alias and interval samplers. It also uses up to 10000x less space than the information-theoretically optimal sampler, at the expense of less than 1.5x runtime overhead.
description: 12 pages, 5 figures, 1 table. Appearing in AISTATS 2020
Getting Computer Technology to Small-Scale Farmers: A Preliminary Assessment
Creators: name: Mu'min, Ridgely A.
name: Evans, Sidney H.
name: Strickland-Horton, Sedalia
name: Mu'min, Ridgely A.
name: Evans, Sidney H.
name: Strickland-Horton, Sedalia
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Research and Development/Tech Change/Emerging Technologies

description: The major objective of this research project is to quantify the benefits of microcomputer uses and applications for small-scale farmers. Major phases of the project include: 1) development of computerized decision aids for small-scale farmers; 2) training of farmers in the use of technology; and 3) measurement of the benefits through evaluating economic performance over time. The first phase of the research produced INTEG. INTEG is an integrated set of Multiplan templates that allows for 1) planning farm operations and financial activities; 2) records management in terms of monitoring actual vs. intended levels of financial activity; and 3) cost control through enterprise budgeting and production efficiency analysis. The INTEG system is being used in five counties to help farmers plan, monitor, and control their operations. After the first year, average net benefits to participating farmers were estimated at $1,500 to $1,800. The benefits were measured as the monetary value of reduced expenditures, different resource allocations and/or improved money management.
WHAT'S A FARM? AN ECONOMIC EVALUATION
Creators: name: Lines, Allan E.
name: Zulauf, Carl
name: Lines, Allan E.
name: Zulauf, Carl
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Production Economics

description: Critics suggest the Census definition of a farm is subjective and too inclusive. This paper reviews the evolution of the current definition, proposes alternative objective minimum economic performance criteria, and examines the impact of these alternatives on common indicators used to monitor the farm sector's economic performance.
Agrilus vanini Curletti & Migliore 2014, sp. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus vanini

description: Agrilus vanini sp. nov.
 (Fig. 14)
 Etimologia: a espécie é dedicada ao Prof. Sérgio Antonio Vanin da Universidade de São Paulo, em sinal de apreço e amizade.
Comprimento 6,1 mm. Fronte glabra, azul- -escura como o pronoto e amplamente deprimida. Clípeo elevado em relação à linha frontal, separado dela por uma carena em forma de V aberto. Antenas curtas com reflexos bronzeados, denteadas a partir do antenômero V. Pronoto com carenas pré-umerais inteiras. Carenas marginais soladadas a 1/4 da base do pronoto. Mentoneira com margem anterior amplamemnte sinuada. Processo prosternal largo, com lados sinuosos no meio. Élitros com uma marcada carena pos-úmeral. Laterotergitos verdes brilhantes, glabros. Lado ventral do corpo glabro, com metasterno bronzeado e urosternitos preto-azulados. Pernas com todas as unhas simplesmente denticuladas. Metatarso mais curto do que a metatíbia; metatarsômero I tão longo quanto a soma dos dois seguintes (I = II + III).
 Material tipo: Holótipo ♀: BRASIL, Minas Gerais, Parque Estadual do Rio Doce, (19°45’48”S, 42°37’54”W), 20.XI.2010, Curletti & L. Migliore col. (MZUSP).
 Discussão: A presença das costas elirais sub-umerais coloca A. vanini sp. nov. em um grupo de espécies bem caracterizadas, que no Brasil compreende: A. mrazi Obenberger 1933, A. pictipennis Gory & Laporte 1837, A. vinitius Obenberger 1933. De todas essas espécies diferencia-se pelas menores dimensões, pela coloração e pelos élitros glabros.
 Esse grupo poderia apresentar um dimorfismo sexual acetuado: o síntipo de A. mrazi, conservado no NHML é um macho e, ao contrário dos cinco síntipos fêmeas, presentes no NMPC, é caracterizado pelo pronoto azul e os élitros roxos; possui coloração semelhante a A. vanini sp. nov. com margem do pronoto e calo umeral verdes. Todavia, o macho da espécie de Obenberger diferencia-se pela pubescência em formato Y na metade basal dos élitros, pela carena pré-umeral inteira e pelos urosternitos uniformenete pubescentes.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 99, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
FastGCN+ARSRGemb: a novel framework for object recognition
Creators: name: Manzo, Mario
name: Pellino, Simone
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.4.10; I.5.1; I.2.10
subject: 92B20, 94A08, 68T10

description: In recent years research has been producing an important effort to encode the digital image content. Most of the adopted paradigms only focus on local features and lack in information about location and relationships between them. To fill this gap, we propose a framework built on three cornerstones. First, ARSRG (Attributed Relational SIFT (Scale-Invariant Feature Transform) regions graph), for image representation, is adopted. Second, a graph embedding model, with purpose to work in a simplified vector space, is applied. Finally, Fast Graph Convolutional Networks perform classification phase on a graph based dataset representation. The framework is evaluated on state of art object recognition datasets through a wide experimental phase and is compared with well-known competitors.