cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bufo Laurenti 1768
Creators: name: Bailon, Salvador
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Bufonidae
Bufo

description: Bufo sp.
MATÉRIEL EXAMINÉ. — 30 vertèbres, 1 urostyle, 2 ilions, 2 radio-ulnas, 5 humérus, 1 fémur et 2 tibiofibulas.
DESCRIPTION
 Bien que l’attribution de ces éléments au genre Bufo n’offre pas de doute (voir caractères ostéologiques du genre Bufo dans Sanchiz 1977; Bailon & Hossini 1990; Bailon 1991, 1999), l’état de conservation des os, parfois trop fragmentés, ou la morphologie générale de ceux-ci, trop semblable chez les différentes espèces du genre, ne permet pas une attribution spécifique précise. Cependant, nous pouvons signaler que, d’après la morphologie de la première vertèbre (atlas), deux types morphologiques différents sont présents à Ahl al Oughlam. Un premier type d’atlas est caractérisé par la présence d’un canal neural circulaire, d’un condyle postérieur bien étiré latéralement et très aplati dorso-ventralement et d’une épine neurale basse et faiblement épaissie postérieurement. Chez le deuxième type morphologique le canal neural est ogival, le condyle nettement moins étiré latéralement et moins aplati et l’épine neurale, toujours basse, s’épaissit considérablement à son extrémité postérieure. Le premier type morphologique se rapproche de B. viridis et de B. regularis Reuss, 1833 (ce dernier actuellement absent du Maroc), tandis que le deuxième type ressemble surtout à B. bufo. Cependant, l’absence d’un matériel plus caractéristique ne permet pas une détermination plus poussée.
description: Published as part of Bailon, Salvador, 2000, Amphibiens et reptiles du Pliocène terminal d'Ahl al Oughlam (Casablanca, Maroc), pp. 539-558 in Geodiversitas 22 (4) on page 542, DOI: 10.5281/zenodo.4650486
The Contribution of bioenergy in the renewable energy technology mix: research perspective
Creators: name: Eloka-Eboka, A. C.
name: Chetty, R.
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 90502 Construction Engineering
subject: FOS: Civil engineering
subject: 90503 Construction Materials

description: Renewable energy from biomass, biofuels and biodiesel encapsulated as bioenergy has become an interested aspect of clean energy technology and is currently receiving global attention. Bioenergy produced from renewable feedstocks and sustainable wastes using several technologies is the focus of this research and development presentation. In South Africa, bioenergy in the forms of solids, liquids and gaseous fuels have been characterised as first, second and third generations (1D, 2D and 3D) systems in order to solve myriads and most critical energy aspects of the sustainable development goals of Africa. The technologies evolved have been directed to specific bioenergy feedstocks and needs for optimal utilisation and application and they include: direct combustion (for power generation), anaerobic digestion (for methane-rich gas production), fermentation (of sugars for alcohols as fuels), oil extraction and transesterification (for biodiesel as fuels), pyrolysis (for biochar, gas and oils for fuel and chemicals), gasification (for carbon monoxide and hydrogen-rich syngas as fuels and value added products) and generalised thermo-chemical conversion. The technologies are further driven by arrays of secondary treatments (stabilization, dewatering, upgrading, refining) depending on specific final products. This presentation explored these and all such research and development (R and D) strategies and technological packages of bioenergy in South Africa. These have implications in the commercialisation, entrepreneurship, informing policy and direct impact in Africa’s energy sustainability. The exploration of sugar-cane bagasse biomass for use as briquette/pellet fuels are also presented.
Hyla meridionalis Boettger 1874
Creators: name: Bailon, Salvador
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Amphibia
Anura
Hylidae
Hyla
Hyla meridionalis

description: Hyla cf. meridionalis (Fig. 1D)
MATÉRIEL EXAMINÉ. — 1 ilion gauche (AaO 2116, INSAP, Rabat, Maroc).
DESCRIPTION
 L’ilion présente la morphologie caractéristique du genre: absence de crête dorsale, présence d’une tubérosité supérieure munie d’une protubérence dorsale globuleuse et incurvée latéralement et d’une « pars descendens » élargie ventralement (Sanchiz 1981). D’après Holman (1992), la morphologie de la tubérosité supérieure constitue un critère de différenciation entre les espèces H. arborea Linné, 1758 et H. meridionalis: tubérosité supérieure basse et munie d’une protubérance dorsale de forme ovale chez H. arborea et tubérosité supérieure sub-triangulaire et portant une protubérance dorsale sphérique chez H. meridionalis. D’après ces données, l’ilion fossile s’accorde bien avec celui d’ H. meridionalis, le seul représentant actuel du genre au Maroc et plus largement en Afrique.
 D’après les données fossiles (Sanchiz 1998), il s’agirait de la première mention à l’état fossile du genre Hyla en Afrique.
description: Published as part of Bailon, Salvador, 2000, Amphibiens et reptiles du Pliocène terminal d'Ahl al Oughlam (Casablanca, Maroc), pp. 539-558 in Geodiversitas 22 (4) on page 542, DOI: 10.5281/zenodo.4650486
Growth and optical properties of GaN/AlN quantum wells
Creators: name: Adelmann, C.
name: Sarigiannidou, E.
name: Jalabert, D.
name: Hori, Y.
name: Rouviere, J. -L.
name: Daudin, B.
name: Fanget, S.
name: Bru-Chevallier, C.
name: Shibata, T.
name: Tanaka, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the growth of GaN/AlN quantum well structures by plasma-assisted molecular-beam epitaxy by taking advantage of the surfactant effect of Ga. The GaN/AlN quantum wells show photoluminescence emission with photon energies in the range between 4.2 and 2.3 eV for well widths between 0.7 and 2.6 nm, respectively. An internal electric field strength of $9.2\pm 1.0$ MV/cm is deduced from the dependence of the emission energy on the well width.
description: Submitted to APL
Lynx D6.6 Final report on communication activities
Creators: name: González-Conejero, Jorge
name: Casanovas, Pompeu
Publisher: name: Zenodo
Year: 2021
Subjects: Lynx communication plan

description: The aim of this document is to report on the communication activities carried out during the Lynx project lifespan (from M1 to M40). This deliverable builds up on D6.1 “Website, project identity set, and communication plan” [1] and on D6.3 “Intermediate report on communication activities” [2]. The communication plan released in D6.1 has been updated throughout the whole project lifespan as new inputs emerged. D6.3 was an intermediate report delivered in M18, therefore, the submitted content has been updated and, when necessary, new materials have been added.
Numerical Relativity at the Frontier
Creators: name: Shapiro, Stuart L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Numerical relativity is an essential tool for solving Einstein's equations of general relativity for dynamical systems characterized by high velocities and strong gravitational fields. The implementation of new algorithms that can solve these nonlinear equations in 3+1 dimensions has enabled us to tackle many long-standing problems of astrophysical interest, leading to an explosion of important new results. Numerical relativity has been used to simulate the evolution of a diverse array of physical systems, including coalescing black hole and neutron star binaries, rotating and collapsing compact objects (stars, collisionless clusters, and scalar fields), and magnetic and viscous stars, to name a few. Numerical relativity has been exploited to address fundamental points of principle, including critical phenomena and cosmic censorship. It holds great promise as a guide for interpreting observations of gravitational waves and gamma-ray bursts and identifying the sources of such radiation. Highlights of a few recent developments in numerical relativity are sketched in this brief overview.
description: to appear in ``The Next Chapter in Einstein's Legacy'', Proceedings of YKIS 2005, Kyoto, Japan, eds M. Sasaki, J. Soda and T. Tanaka, in Progress of Theoretical Physics Suppl, in press (2006)
Lynx D4.5 Final implementation and report of Data and Content Curation Services
Creators: name: Moreno-Schneider, Julián
name: Rehm, Georg
Publisher: name: Zenodo
Year: 2021
Subjects: Lynx curation services, curation workflow manager, workflow manager, Camunda, document manager

description: This report describes the final implementation of the curation workflow manager (WM), which controls the workflows associated to every business use case (as defined in “D4.1 Pilots requirements analysis report” [LynxD41]). This implementation is based on the definition provided in “D4.2 Initial version of Workflow definition” [LynxD42] and “D4.3 Final version of Workflow definition” [LynxD43], in which we outlined four workflows: a common workflow, LKG population, and three use case specific workflows, namely Contract Analysis (OLS), Geothermal Project Analysis (DNVGL), and Labour Law Analysis (CuatreCasas), and “D4.4 Initial implementation and report of Data and Content Curation Services” [LynxD44] where an initial implementation was described. The final implementation of the curation workflow manager is based on the Camunda BPMN engine (https://camunda.com/products/bpmn-engine/), allowing the definition, implementation and execution of workflows inside the same Lynx platform. The main components of the curation workflow manager were already described in “D4.4 Initial implementation and report of Data and Content Curation Services” [LynxD44]. This report also describes the final implementation of the document manager (DCM), which is responsible for the storage of the Legal Knowledge Graph and the documents once they have been processed through the different workflows. One implementation of the DCM is based on Trellis Linked Data Platform (LDP) (https://www.trellisldp.org/). A second implementation is based on ElasticSearch (ES). By utilizing the flexibility of JSON-LD and the capabilities of an LDP, the DCM is the main building component for storing the Lynx Legal Knowledge Graph (LKG).
Detection of the ISW and SZ effects from the CMB-Galaxy correlation
Creators: name: Fosalba, Pablo
name: Gaztanaga, Enrique
name: Castander, Francisco
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a cross-correlation analysis of the WMAP cosmic microwave background (CMB) temperature anisotropies and the SDSS galaxy density fluctuations. We find significant detections of the angular CMB-galaxy correlation for both the flux limited galaxy sample (z~0.3) and the high redshift (z ~ 0.5) color selected sample. The signal is compatible with that expected from the integrated Sachs-Wolfe (ISW) effect at large angles (θ> 3deg) and the Sunyaev-Zeldovich (SZ) effect at small scales (θ< 1 deg). The detected correlation at low-z is in good agreement with a previous analysis using the APM survey (z~0.15). The combined analysis of all 3 samples yields a total significance better than 3 sigma for ISW and about 2.7 σfor SZ, with a Compton parameter y~10^(-6). For a given flat LCDM model, the ISW effect depends both on the value of Ω_Λand the galaxy bias b. To break this degeneracy, we estimate the bias using the ratio between the galaxy and mass auto-correlation functions in each sample. With our bias estimation, all samples consistently favor a best fit dark-energy dominated model: Ω_Λ~ 0.8, with a 2 σerror Ω_Λ=0.69-0.86.
description: Accepted by ApJL. New figure and further discussion about error estimates
Lynx D5.8 Evaluation Report of the Lynx platform and pilots
Creators: name: Maganza, Filippo
Publisher: name: Zenodo
Year: 2021
Subjects: testing and evaluation plan, Lynx platform, Lynx pilots

description: In D5.4 “Testing and evaluation plan” [1] we described our plan for testing that the Lynx system with its pilots addresses the requirements of the Lynx project. With this deliverable, D5.8 “Evaluation Report of the Lynx platform and pilots”, we present the application of the methods described in D5.4, the obtained results, and the conclusions that have been drawn. Section 2, “Integration level testing and evaluation”, reports the updated versions of the integration tests for the Lynx platform presented in the “Integration level testing and evaluation plan” Section of D5.4, shows the results which have been obtained from their application and the conclusions that have been drawn. Section 3, “Pilot use cases level testing and evaluation”, shows the results of the tests and benchmarks that have been performed to verify the conformance of the three Lynx pilot applications with respect to their requirements. The testing methodology for the Lynx pilot applications has been presented in the “Pilot use cases level testing and evaluation plan” Section of D5.4.
Shell Model of Two-dimensional Turbulence in Polymer Solutions
Creators: name: Benzi, Roberto
name: Horesh, Nizan
name: Procaccia, Itamar
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We address the effect of polymer additives on two dimensional turbulence, an issue that was studied recently in experiments and direct numerical simulations. We show that the same simple shell model that reproduced drag reduction in three-dimensional turbulence reproduces all the reported effects in the two-dimensional case. The simplicity of the model offers a straightforward understanding of the all the major effects under consideration.
Cluster approximations for probabilistic systems: a new perspective of epidemiological modelling
Creators: name: Petermann, Thomas
name: Rios, Paolo De Los
Publisher: name: arXiv
Year: 2004
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Especially in lattice structured populations, homogeneous mixing represents an inadequate assumption. Various improvements upon the ordinary pair approximation based on a number of assumptions concerning the higher-order correlations have been proposed. To find approaches that allow for a derivation of their dynamics remains a great challenge. By representing the population with its connectivity patterns as a homogeneous network, we propose a systematic methodology for the description of the epidemic dynamics that takes into account spatial correlations up to a desired range. The equations which the dynamical correlations are subject to, are derived in a straightforward way, and they are solved very efficiently due to their binary character. The method embeds very naturally spatial patterns such as the presence of loops characterizing the square lattice or the treelike structure ubiquitous in random networks, providing an improved description of the steady state as well as the invasion dynamics.
description: Submitted to J. Theor. Biol; 11 pages, 12 figures
An Investigation into Sustainable Computer Hardware
Creators: name: Gradzi, Dominik
name: Leung, Titus
name: Cen, Qing
Publisher: name: The University of British Columbia
Year: 2010

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.”
Flow regimes of Rayleigh-Bénard convection in a vertical magnetic field
Creators: name: Zürner, Till
name: Schindler, Felix
name: Vogt, Tobias
name: Eckert, Sven
name: Schumacher, Jörg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The effects of a vertical static magnetic field on the flow structure and global transport properties of momentum and heat in liquid metal Rayleigh-Bénard convection are investigated. Experiments are conducted in a cylindrical convection cell of unity aspect ratio, filled with the alloy GaInSn at a low Prandtl number of $\mathit{Pr}=0.029$. Changes of the large-scale velocity structure with increasing magnetic field strength are probed systematically using multiple ultrasound Doppler velocimetry sensors and thermocouples for a parameter range that is spanned by Rayleigh numbers of $10^6 \le \mathit{Ra} \le 6\times 10^7$ and Hartmann numbers of $\mathit{Ha} \le 1000$. Our simultaneous multi-probe temperature and velocity measurements demonstrate how the large-scale circulation is affected by an increasing magnetic field strength (or Hartmann number). Lorentz forces induced in the liquid metal first suppress the oscillations of the large-scale circulation at low $\mathit{Ha}$, then transform the one-roll structure into a cellular large-scale pattern consisting of multiple up- and downwellings for intermediate $\mathit{Ha}$, before finally expelling any fluid motion out of the bulk at the highest accessible $\mathit{Ha}$ leaving only a near-wall convective flow that persists even below Chandrasekhar's linear instability threshold. Our study thus proves experimentally the existence of wall modes in confined magnetoconvection. The magnitude of the transferred heat remains nearly unaffected by the steady decrease of the fluid momentum over a large range of Hartmann numbers. We extend the experimental global transport analysis to momentum transfer and include the dependence of the Reynolds number on the Hartmann number.
Elliptic Solutions for Higher Order KdV Equations
Creators: name: Hayashi, Masahito
name: Shigemoto, Kazuyasu
name: Tsukioka, Takuya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study higher order KdV equations from the GL(2,$\mathbb{R}$) $\cong$ SO(2,1) Lie group point of view. We find elliptic solutions of higher order KdV equations up to the ninth order. We argue that the main structure of the trigonometric/hyperbolic/elliptic $N$-soliton solutions for higher order KdV equations is the same as that of the original KdV equation. Pointing out that the difference is only the time dependence, we find $N$-soliton solutions of higher order KdV equations can be constructed from those of the original KdV equation by properly replacing the time-dependence. We discuss that there always exist elliptic solutions for all higher order KdV equations.
description: 14 pages
Bohr-Sommerfeld quantization of spin Hamiltonians
Creators: name: Garg, Anupam
name: Stone, Michael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Bohr-Sommerfeld rule for a spin system is obtained, including the first quantum corrections. The rule applies to both integer and half-integer spin, and respects Kramers degeneracy for time-reversal invariant systems. It is tested for various models, in particular the Lipkin-Meshkov-Glick model, and found to agree very well with exact results.
description: Revtex 4, no figures, 1 table
Eumeces algeriensis Peters 1864
Creators: name: Bailon, Salvador
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Eumeces
Eumeces algeriensis

description: Eumeces algeriensis Peters, 1864 (Fig. 4A, B)
MATÉRIEL EXAMINÉ. — 2 fragments de dentaires, droit et gauche.
DESCRIPTION
Les deux dentaires présentent un aspect massif avec, en vue latérale, une forte impression musculaire postérieure. En vue médiale, le canal de Meckel est largement ouvert postérieurement puis se rétrécit progressivement vers l’avant jusqu’à atteindre une symphyse mandibulaire réduite. Les dents, au nombre de 15, sont pleurodontes, isodontes, cylindriques, unicuspides, robustes et élargies latéro-médialement.
 La morphologie générale de l’os ne diffère guère de celle de l’actuel Eumeces algeriensis, actuellement présent au Maroc. Le genre est mentionné dans le Miocène de Beni Mellal (Hoffstetter 1961; Rage 1976).
description: Published as part of Bailon, Salvador, 2000, Amphibiens et reptiles du Pliocène terminal d'Ahl al Oughlam (Casablanca, Maroc), pp. 539-558 in Geodiversitas 22 (4) on page 547, DOI: 10.5281/zenodo.4650486
Simulating the Fermi Bubbles as Forward Shocks Driven by AGN Jets
Creators: name: Zhang, Ruiyu
name: Guo, Fulai
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Fermi bubbles are two giant bubbles in gamma rays lying above and below the Galactic center (GC). Despite numerous studies on the bubbles, their origin and emission mechanism remain elusive. Here we use a suite of hydrodynamic simulations to study the scenario where the cosmic rays (CRs) in the bubbles are mainly accelerated at the forward shocks driven by a pair of opposing jets from Sgr A*. We find that an active galactic nucleus (AGN) jet event happened $5-6$ Myr ago can naturally reproduce the bilobular morphology of the bubbles, and the postshock gas temperature in the bubbles is heated to $\sim0.4$ keV, consistent with recent X-ray observations. The forward shocks compress the hot halo gas, and at low latitudes, the compressed gas shows an X-shaped structure, naturally explaining the biconical X-ray structure in the ROSAT 1.5 keV map in both morphology and X-ray surface brightness. CR acceleration is most efficient in the head regions of the bubbles during the first 2 Myrs. The opposing jets release a total energy of $\sim 10^{55}$ erg with an Eddington ratio of $\sim 10^{-3}$, which falls well in the range of the hot accretion flow mode for black holes. Our simulations further show that the forward shocks driven by spherical winds at the GC typically produce bubbles with much wider bases than observed, and could not reproduce the biconical X-ray structure at low latitudes. This suggests that starburst or AGN winds are unlikely the origin of the bubbles in the shock scenario.
description: Slightly revised version, accepted for publication in ApJ. 15 pages, 15 figures
title: Hyperlocal Online Deliberation and Civic Governance: A Sociotechnical Perspective
Creators: name: Van Der Merwe, Rean
Publisher: name: The Open University
Year: 2013

description: This dissertation concerns the role of online deliberation in hyperlocal governance, that is the self-governance of a small geographically bounded neighbourhood or community. The research has three closely related but distinct purposes: to assess the impact of online technology in terms of the emergent character of self-governance; to describe the social and technological relations that produced the observed impact; and to suggest explanations that link those socio-technical relations with the observed governance effects. The work draws upon concepts at the intersection of theories from human-centred computing, especially those that relate to online deliberation, and from political science, where direct deliberative democracy offers an evaluative benchmark for democratic governance. This interdisciplinary theoretical framework provides the basis for a case-based analysis of empirical observations of online interactions relating to hyperlocal governance. The study describes and analyses patterns of "governance conversation" observed in interactions on local e-mail lists, and shows how they facilitate the pluralist deliberation required to manage complex local governance problems. The analysis suggests how geographic proximity presents both distinctive opportunities and constraints for online deliberation that aspires to support direct, democratic process and practice.
Atlantidosteus Lelievre 1984
Creators: name: Young, Gavin C.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Placodermi
Arthrodira
Homostiidae
Atlantidosteus

description: Genus Atlantidosteus Lelièvre, 1984
REMARKS
Lelièvre (1984a) defined his new genus on the following features of the SO plate: suborbital lamina strongly incurved in a medial direction; high postorbital lamina; ornamentation of very small tubercles. The unusual shape of this new example of the SO plate closely resembles that of the type species, in having a high postorbital lamina with a curved dorsal margin, an unornamented mesially directed suborbital lamina, and a distinctive sensory groove pattern.
description: Published as part of Young, Gavin C., 2003, A new species of Atlantidosteus Lelièvre, 1984 (Placodermi, Arthrodira, Brachythoraci) from the Middle Devonian of the Broken River area (Queensland, Australia), pp. 681-694 in Geodiversitas 25 (4) on page 684, DOI: 10.5281/zenodo.4650651
Post-AGB Evolution in the Large Magellanic Cloud. A Study of the Central Stars of Planetary Nebulae
Creators: name: Villaver, Eva
name: Stanghellini, Letizia
name: Shaw, Richard A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present medium- and broad-band Hubble Space Telescope (HST) photometry of a sample of 35 central stars (CSs) of Planetary Nebulae (PNs) in the Large Magellanic Cloud (LMC). The observations were made with the WFPC2 and STIS instruments on board the HST. By observing LMC objects, our sample is free of the distance uncertainty that is the dominate source of error in the determination of CS luminosities in Galactic PNs. By observing with the HST, we resolve the nebula and therefore we often detect the CSs unambiguously. We obtain core masses of 16 of the objects by comparing their positions on the HR diagram to theoretical evolutionary tracks, once we determine the stellar effective temperature through Zanstra analysis. This sample of CS masses is the largest and most reliable set obtained in an extra-Galactic environment. We find an average mass of 0.65 Msun, though a few of the objects have very high mass. This average value is consistent with the average mass of the white dwarf population in the Galaxy. As the immediate precursors of white dwarfs, the study of the mass distribution of PN CSs should help to constrain the initial-to-final mass relation within environments of differing metallicity. Finally, by exploring the physical connections between the star and the nebula, we establish the importance of the study of PNs in the LMC to constrain the energy input from the wind during the post-AGB phase.
description: Accepted for publication in Astrophysical Journal. 23 pages, 8 figures and 4 tables
title: Sensory Augmentation for Navigation in Difficult Urban Environments by People With Visual Impairment
Creators: name: Johnston, Anthony Denis
Publisher: name: The Open University
Year: 2013

description: Independent mobility in completing such tasks as walking through a town centre is taken for granted by well-bodied individuals. However, for those with a disability such as impairment of vision, mobility and navigation can become challenging tasks not easily undertaken. The barriers to access for blind and partially sighted individuals are increased when familiar navigational cues are removed in difficult urban environments such as Shared Space. The research consisted of investigating methods of navigation employed by people with visual impairment and designing a device to restore confidence to this group so as to lower the barriers of access to such environments. Investigation was carried out through the deployment of a questionnaire; discussions with groups representing blind and partially sighted people; and a site visit to Shared Space environments. Statistical analysis was carried out on the results of the questionnaire to ascertain the navigational habits of blind and partially sighted individuals in different environments. From the analysis and the results of the discussions and site visit it was established that it would be socially acceptable to design a secondary aid to navigation that would complement the primary aids of long cane or guide dog. A concept experiment was carried out to test the idea that knowledge about changes in surface colour could help with navigation. A prototype device that could be used by individuals with visual impairment to increase their confidence when navigating a difficult environment was designed, built and tested. Different programming methods were researched and trialled to effectively use machine vision to provide a solution to analyse video feed from a passive camera and return useful information to a blind or partially sighted user. The device was tested indoors and outdoors and found to be effective at detecting changes in surface colour. Further work is needed to run the software on a more compact platform such as a mobile phone, but initial results show that the concept is viable and that the barriers that present to blind and partially sighted people navigating difficult urban environments can be much reduced through the use of this technology.
Pion Form Factor in the $k_T$ Factorization Formalism
Creators: name: Huang, T.
name: Wu, X. G.
name: Wu, X. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on the light-cone (LC) framework and the $k_T$ factorization formalism, the transverse momentum effects and the different helicity components' contributions to the pion form factor $F_π(Q^2)$ are recalculated. In particular, the contribution to the pion form factor from the higher helicity components ($λ_1+λ_2=\pm 1$), which come from the spin-space Wigner rotation, are analyzed in the soft and hard energy regions respectively. Our results show that the right power behavior of the hard contribution from the higher helicity components can only be obtained by fully keeping the $k_T$ dependence in the hard amplitude, and that the $k_T$ dependence in LC wave function affects the hard and soft contributions substantially. As an example, we employ a model LC wave function to calculate the pion form factor and then compare the numerical predictions with the experimental data. It is shown that the soft contribution is less important at the intermediate energy region.
description: 21 pages, 4 figures
Pump depletion in parametric down-conversion with low pump energies
Creators: name: Flórez, Jefferson
name: Lundeen, Jeff S.
name: Chekhova, Maria V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the efficient generation of high-gain parametric down-conversion, including pump depletion, with pump powers as low as 100 $μ$W (energies $0.1$~$μ$J/pulse) and conversion efficiencies up to 33\%. In our simple configuration, the pump beam is tightly focused into a bulk periodically poled lithium niobate crystal placed in free space. We also observe a change in the photon number statistics for both the pump and down-converted beams as the pump power increases to reach the depleted pump regime. The experimental results are a clear signature of the interplay between the pump and the down-converted beams in highly efficient parametric down-conversion sources.
description: 5 pages, 4 figures
Quantum theory of multimode fields: Applications to optical resonators
Creators: name: Viviescas, Carlos
name: Hackenbroich, Gregor
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recently developed technique for the system--and--bath quantization of open optical cavities is applied to three resonator geometries: A one dimensional dielectric, a Fabry--Perot resonator, and a dielectric disk. The system--and--bath Hamiltonian for these geometries is derived starting from Maxwell's equations and employed to compute the electromagnetic fields, the resonances, and the cavity gain factors. Exact agreement is found with standard quantization methods based on a modes--of--the--universe description. Our analysis provides a microscopic justification for the system--and--bath quantization even in the regime of spectrally overlapping modes.
description: 25 pages, 6 figures, corrected typos
A new sample of large angular size radio galaxies. III. Statistics and evolution of the grown population
Creators: name: Lara, L.
name: Giovannini, G.
name: Cotton, W. D.
name: Feretti, L.
name: Marcaide, J. M.
name: Marquez, I.
name: Venturi, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present in this paper a detailed study of a new sample of large angular size FR I and FR II radio galaxies and compare the properties of the two classes. As expected, a pure morphology based distinction of FR Is and FR IIs corresponds to a break in total radio power. The radio cores in FR Is are also weaker than in FR IIs, although there is not a well defined break power. We find that asymmetry in the structure of the sample members must be the consequence of anisotropies in the medium where the lobes expand, with orientation playing a minor role. Moreover, literature data and our observations at kiloparsec scales suggest that the large differences between the structures of FR I and FR II radio galaxies must arise from the poorly known central kiloparsec region of their host galaxies. We analyze the sub-sample of giant radio galaxies, and do not find evidence that these large objects require higher core powers. Our results are consistent with giant radio galaxies being the older population of normal FR I and FR II objects evolving in low density environments. Comparing results from our sample with predictions from the radio luminosity function we find no evidence of a possible FR II to FR I evolution. Moreover, we conclude that at z~0.1, one out of four FR II radio sources has a linear size above 500 kpc, thus being in an advanced stage of evolution (for example, older than ~10 Myr assuming a jet-head velocity of 0.1c). Radio activity seems to be a short-lived process in active galaxies, although in some cases recurrent: five objects in our sample present signs of reactivation in their radio structures.
description: 14 pages, 14 figures, accepted for publication in Astronomy & Astrophysics
Leptolophus Remy 1965
Creators: name: Badiola, Ainara
name: Astibia, Humberto
name: Suberbiola, Xabier Pereda
name: Murelaga, Xabier
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Pachynolophidae
Leptolophus

description: Genus Leptolophus Remy, 1965
 TYPE SPECIES. — Leptolophus stehlini Remy, 1965, by original designation.
description: Published as part of Badiola, Ainara, Astibia, Humberto, Suberbiola, Xabier Pereda & Murelaga, Xabier, 2002, First record of the genus Leptolophus Remy, 1965 (Mammalia, Perissodactyla) in the late Eocene (Priabonian) of Europe, pp. 841-848 in Geodiversitas 24 (4) on page 842, DOI: 10.5281/zenodo.4650641
IDENTIFICATION AND ESTIMATION OF UNDERLYING MARKET SUPPLY FUNCTION PARAMETERS FOR A COMMODITY WITH MANDATORY OUTPUT CONTROLS
Creators: name: Goodwin, Barry K.
name: Sumner, Daniel A.
name: Sparrow, D. Arthur
name: Goodwin, Barry K.
name: Sumner, Daniel A.
name: Sparrow, D. Arthur
Publisher: name: Unknown
Year: 1987
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Data on lease rates for transferable output quotas allow implicit, measurements of marginal costs. Regression of these costs on quantities of quota allows identification and estimation of parameters of the marginal cost function. Econometric analysis of sixty tobacco counties for eight recent years yields implied supply elasticities of about 3.3.
An Investigation into the Sustainability of Paper Towels vs. the Dyson Airblade
Creators: name: Amin, Tarek
name: Tai, Kelvin
name: Yue, David
Publisher: name: The University of British Columbia
Year: 2010

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.”
Heat transport of La$_{2-y}$Eu$_y$CuO$_4$ and La$_{1.88-y}$Eu$_y$Sr$_{0.12}$CuO$_4$ single crystals
Creators: name: Sun, X. F.
name: Komiya, Seiki
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: To study the rare-earth doping effect on the phonon heat transport of La-based cuprates and shed light on the mechanism of phonon scattering, both $ab$-plane and c-axis thermal conductivities ($κ_{ab}$ and $κ_c$) are measured for La$_{2-y}$Eu$_y$CuO$_4$ ($y$ = 0, 0.02 and 0.2) and La$_{1.88-y}$Eu$_y$Sr$_{0.12}$CuO$_4$ ($y$ = 0 and 0.2) single crystals. It is found that the phonon peak (at 20 -- 25 K) in $κ_{ab}(T)$ of La$_{2-y}$Eu$_y$CuO$_4$ shows an anomalous Eu-doping dependence: it completely disappears for $y$ = 0.02, which is discussed to be due to the local lattice distortions around Eu dopants, and reappears for $y$ = 0.2 with much smaller peak magnitude compared to $y$ = 0 sample. In contrast to the strong suppression of the phonon peak in Eu-doped La$_2$CuO$_4$, Eu-doping to La$_{1.88}$Sr$_{0.12}$CuO$_4$ enhances the low-$T$ phonon heat transport that results in the reappearance of the phonon peak in this charge-carrier-doped system. The data clearly show that the establishment of static stripe phase rather than the structural change is responsible for the reappearance of phonon peak.
description: 7 pages, 5 figures, final version published in Phys. Rev. B
How good is your metalens? Experimental verification of metalens performance criterion
Creators: name: Engelberg, Jacob
name: Wildes, Talia
name: Zhou, Chen
name: Mazurski, Noa
name: Bar-David, Jonathan
name: Kristensen, Anders
name: Levy, Uriel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A metric for evaluation of overall metalens performance is presented. It is applied to determination of optimal operating spectral range of a metalens, both theoretically and experimentally. This metric is quite general and can be applied to the design and evaluation of future metalenses, particularly achromatic metalenses.
Identifying Threshold Technical Advances Required for Incorporating Alternative Crops Into Current Crop Mixes
Creators: name: Rister, M. Edward
name: Stockton, Matthew
name: Richardson, James W.
name: Perry, Gregory M.
name: Bessler, David A.
name: Matocha, John E.
name: Bremer, John
name: Livingston, Steve
name: Reyes, Lucas
name: Novak, James
name: Rister, M. Edward
name: Stockton, Matthew
name: Richardson, James W.
name: Perry, Gregory M.
name: Bessler, David A.
name: Matocha, John E.
name: Bremer, John
name: Livingston, Steve
name: Reyes, Lucas
name: Novak, James
Publisher: name: Unknown
Year: 1987
Subjects: Crop Production/Industries
Research Methods/ Statistical Methods

description: Prospects for incorporating a currently non-competitive alternative crop into agricultural producers' annual crop mix portfolio are investigated. Through iterative use of a whole fann simulation model, it is demonstrated Texas Coastal Bend soybean yields must increase in excess of 50% to economically compete with present grain sorghum and cotton acreage.
Foundations of Finsler spacetimes from the Observers' Viewpoint
Creators: name: Bernal, Antonio
name: Javaloyes, Miguel Ángel
name: Sánchez, Miguel
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Physical foundations for relativistic spacetimes are revisited, in order to check at what extent Finsler spacetimes lie in their framework. Arguments based on inertial observers (as in the foundations of Special Relativity and Classical Mechanics) are shown to correspond with a double linear approximation in the measurement of space and time. While General Relativity appears by dropping the first linearization, Finsler spacetimes appear by dropping the second one. The classical Ehlers-Pirani-Schild approach is carefully discussed and shown to be compatible with the Lorentz-Finsler case. The precise mathematical definition of Finsler spacetime is discussed by using the {\em space of observers}. Special care is taken in some issues such as: the fact that a Lorentz-Finsler metric would be physically measurable only on the causal directions for a cone structure, the implications for models of spacetimes of some apparently innocuous hypotheses on differentiability, or the possibilities of measurement of a varying speed of light.
description: v2: 47 pages, new section 5.2.5, added seven references and minor changes
Choice of Utility Functional Form: Its Effect on Classification of Risk Preferences and the Prediction of Farmer Decisions
Creators: name: Zuhair, Segu M. M.
name: Taylor, Daniel B.
name: Kramer, Randall A.
name: Zuhair, Segu M. M.
name: Taylor, Daniel B.
name: Kramer, Randall A.
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Research Methods/ Statistical Methods
Risk and Uncertainty

description: Subjective utility values were elicited from Sri Lankan producers of minor export crops. Exponential, quadratic, and cubic utility functions were estimated. The choice of functional form was found to affect both the classification of risk attitudes and the prediction of harvesting strategy.
Desafios e possibilidades de ciência aberta em bibliotecas digitais jurídicas: estudo de caso da biblioteca digital do TJDFT
Creators: name: Mártires Pinto, Elton
name: de Jesus Pereira, Fernando
name: Torres Schiessl, Ingrid
name: Macêdo, Diego José
name: Shintaku, Milton
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão “O meu Póster em 1 minuto”, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Oioceros Gaillard 1902
Creators: name: Roussiakis, Socrates J.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Bovidae
Oioceros

description: Genus Oioceros Gaillard, 1902
 TYPE SPECIES. — Antilope rothii Wagner, 1857.
 ADDITIONAL SPECIES. — O. atropatenes (Rodler & Weithofer, 1890).
DIAGNOSIS. — Small to medium sized antelopes; short face (M3 below the orbit), slightly bent in relation to the braincase; nasal bones widening posteriorly; prominent orbital rims; frontals between the horncores almost at the same level as the supraorbital margins; frontal depression between the posterior part of the nasals and the horn-core bases; supraorbital foramina close to the bases of the horn-cores; infraorbital foramen above P3; postcornual fossa present; horncores inserted above the posterior part of the orbits, with inverse torsion, and a main keel that starts from a postero-lateral position; horn-core axis almost straight in lateral view; anteroposterior and transverse diameter of the horn-cores that diminish gradually from the base upwards; braincase not shortened.
description: Published as part of Roussiakis, Socrates J., 2003, Oioceros rothii (Wagner, 1857) from the late Miocene of Pikermi (Greece): cranial and dental morphology, comparison with related forms, pp. 717-735 in Geodiversitas 25 (4) on page 719, DOI: 10.5281/zenodo.4650685
Stationary BGK models for chemically reacting gas in a slab
Creators: name: Kim, Doheon
name: Lee, Myeong-Su
name: Yun, Seok-Bae
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the boundary value problem of two stationary BGK-type models - the BGK model for fast chemical reaction and the BGK model for slow chemical reaction - and provide a unified argument to establish the existence and uniqueness of stationary flows of reactive BGK models in a slab. For both models, the main difficulty arises in the uniform control of the reactive parameters from above and below, since, unlike the BGK models for non-reactive gases, the reactive parameters for the reactive BGK models are defined through highly nonlinear relations. To overcome this difficulty, we introduce several nonlinear functionals that capture essential structures of such nonlinear relations such as the monotonicity in specific variables, that enable one to derive necessary estimates for the reactive equilibrium coefficients.
description: typo checked
title: Combining Genetic Gain and Diversity in Plant Breeding: Heritability of Root Selection in Wheat Populations
Creators: name: Timaeus, Johannes
name: Weedon, Odette Denise
name: Finckh, Maria Renate
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: composite cross population
subject: organic plant breeding
subject: crop diversity
subject: genetic gain
subject: early vigor
subject: 630
subject: Agrarökologie
subject: Pflanzenzüchtung
subject: Biodiversität
subject: Resilienz
subject: Weizen
subject: Wurzel

description: Gefördert durch den Publikationsfonds der Universität Kassel
Measurement-induced spin squeezing in a cavity
Creators: name: Saito, Hiroki
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin squeezing of an ensemble of N atoms in a high-Q cavity is shown to be enhanced by continuous measurement of photons in the cavity. A degree of spin squeezing proportional to N^{-1/3} is attained as a quasi-steady state over a broad set of initial states of the atoms and photons.
description: 9 pages, 5 figures
An Investigation into Paper Towel vs. Electric Hand Dryers
Creators: name: Cai, Shang
name: Lee, Carol
name: Cheung, Jacky
Publisher: name: The University of British Columbia
Year: 2010

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.”
Strong vortex-antivortex fluctuations in the type II superconducting film
Creators: name: Ovchinnikov, Yu. N.
name: Varlamov, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The small size vortex-antivortex pairs proliferation in type II superconducting film is considered for the wide interval of temperatures below Tc. The corresponding contribution to free energy is calculated. It is shown that these fluctuations give the main contribution to the heat capacity of the film both at low temperatures and in the vicinity of transition.