cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark Matter as Cosmic Standing Waves: A Harmonic Interpretation of Galactic Structures
Creators: name: Welebny, Stefan Karl
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Dark matter

description: We propose that the gravitational effects attributed to dark matter arise naturally from extremely low-frequency standing electromagnetic waves spanning galactic and larger cosmic scales. In this model, the energy density of overlapping harmonics generates smooth gravitational potentials that match observed dark matter distributions, including flat galactic rotation curves and core-like density profiles. The allowed modes are bounded by the cosmic scale and the Planck length, tuning the universal resonator through Planck’s quantum constant h. This framework provides a unified, observationally compatible alternative to exotic particle hypotheses and connects large-scale cosmic structures with quantum mechanical principles.
Collapse of Primordial Clouds II. The Role of Dark Matter
Creators: name: Oliveira, S. R.
name: Miranda, O. D.
name: de Araujo, J. C. N.
name: Opher, R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this article we extend the study performed in our previous article on the collapse of primordial objects. We here analyze the behavior of the physical parameters for clouds ranging from $10^7M_\odot$ to $10^{15}M_\odot$. We studied the dynamical evolution of these clouds in two ways: purely baryonic clouds and clouds with non-baryonic dark matter included. We start the calculations at the beginning of the recombination era, following the evolution of the structure until the collapse (that we defined as the time when the density contrast of the baryonic matter is greater than $10^4$). We analyze the behavior of the several physical parameters of the clouds (as, e.g., the density contrast and the velocities of the baryonic matter and the dark matter) as a function of time and radial position in the cloud. In this study all physical processes that are relevant to the dynamical evolution of the primordial clouds, as for example photon-drag (due to the cosmic background radiation), hydrogen molecular production, besides the expansion of the Universe, are included in the calculations. In particular we find that the clouds, with dark matter, collapse at higher redshift when we compare the results with the purely baryonic models. As a general result we find that the distribution of the non-baryonic dark matter is more concentrated than the baryonic one. It is important to stress that we do not take into account the putative virialization of the non-baryonic dark matter, we just follow the time and spatial evolution of the cloud solving its hydrodynamical equations. We studied also the role of the cooling-heating processes in the purely baryonic clouds.
description: 8 pages, MN plain TeX macros v1.6 file, 13 PS figures. Also available at http://www.iagusp.usp.br/~oswaldo (click "OPTIONS" and then "ARTICLES"). MNRAS in press
Challenge-based instruction promotes students’ development of transferable frameworks and confidence for engineering problem solving
Creators: name: Clegg, John R.
name: Diller, Kenneth R.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Challenge-based teaching facilitates students’ simultaneous development of content mastery and strategies for applying technical knowledge innovatively. The University of Texas at Austin Department of Biomedical Engineering has offered a challenge-based course on biotransport as an accelerated study-abroad learning experience in Cambridge, England. We used a mixed methods approach to characterize students’ learning trajectory, to include technical prowess, problem-solving self-efficacy, and engineering identity throughout the entirety of this course. Students developed problem solving strategies and confidence over the semester and readily transferred their acquired solution framework to technical domains outside of the course subject of biotransport. Students identified challenge-based pedagogies as their preferred methods of classroom instruction, became familiar with corresponding assessments, and identified strongly as practitioners within the engineering field. We believe this illustrative case study provides significant evidence for the effectiveness of challenge-based instruction and can serve as a model for pedagogy-sensitive classroom assessment in engineering.
Distance Estimation in Cosmology
Creators: name: Hendry, M. A.
name: Simmons, J. F. L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we outline the framework of mathematical statistics with which one may study the properties of galaxy distance estimators. We describe, within this framework, how one may formulate the problem of distance estimation as a Bayesian inference problem, and highlight the crucial question of how one incorporates prior information in this approach. We contrast the Bayesian approach with the classical `frequentist' treatment of parameter estimation, and illustrate -- with the simple example of estimating the distance to a single galaxy in a redshift survey -- how one can obtain a significantly different result in the two cases. We also examine some examples of a Bayesian treatment of distance estimation -- involving the definition of Malmquist corrections -- which have been applied in recent literature, and discuss the validity of the assumptions on which such treatments have been based.
description: Plain Latex version 3.1, 18 pages + 2 figures, `Vistas in Astronomy' in press
Polarized light field Imaging for reflectance separation and transparent object acquisition
Creators: name: Kim, Jaewon
Publisher: name: Imperial College London
Year: 2018

description: This thesis addresses two challenging acquisition problems for computer graphics: acquisition of layered reflectance, and acquiring common transparent objects (axially-symmetric containers) and liquids. The first problem is approached using a novel computational photography method for single shot separation of diffuse/specular reflectance as well as novel angular domain separation of layered reflectance. A polarized light field camera is presented as a key component for simultaneously capturing multiple states of polarization and this thesis demonstrates single-shot reflectance separation under various types of incident illumination. To tackle the second problem, a practical solution is proposed for high quality reconstruction of axially-symmetric transparent objects and estimation of the optical properties of various common liquids contained in such objects. Acquisition setup of the solution involves imaging such objects from a single viewpoint while illuminating them from directly behind with polarized patterns. A reconstruction step is then based on optimization of the object's geometry and its refractive index to minimize the difference between observed and simulated transmission and refraction of rays passing through the object. The same setup is also employed for developing a novel method for estimating optical properties of common liquids contained in natural concentrations in a known axially-symmetric transparent container.
The effect of highly structured cosmic magnetic fields on ultra-high energy cosmic ray propagation
Creators: name: Tanco, Gustavo Medina
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The possibility that the magnetic field is strongly correlated with the large-scale structure of the universe has been recently considered in the literature. In this scenario the intergalactic magnetic field has a strong ($μ$G) regular component spanning tens of Mpc but localized in sheets and filaments, while the vast voids in between are almost free of magnetic field. If true, this could have important consequences on the propagation of ultra-high energy cosmic rays, and severely affect our capacity of doing astronomy with charged particles. A quantitative discussion of these effects is given in the present work.
description: 4 pages, 4 figures (jpg), Astrophys. J. Letters (in press)
title: Mapping the Future of Particle Radiobiology in Europe: The INSPIRE Project
Creators: name: Henthorn, Nicholas T.
name: Sokol, Olga
name: Durante, Marco
name: De Marzi, Ludovic
name: Pouzoulet, Frederic
name: Miszczyk, Justyna
name: Olko, Pawel
name: Brandenburg, Sytze
name: Goethem, Marc Jan van
name: Barazzuol, Lara
name: Tambas, Makbule
name: Langendijk, Johannes A.
name: Davídková, Marie
name: Vondráĉek, Vladimír
name: Bodenstein, Elisabeth
name: Pawelke, Joerg
name: Lomax, Antony J.
name: Weber, Damien C.
name: Dasu, Alexandru
name: Stenerlöw, Bo
name: Poulsen, Per R.
name: Sørensen, Brita S.
name: Grau, Cai
name: Sitarz, Mateusz K.
name: Heuskin, Anne-Catherine
name: Lucas, Stephane
name: Warmenhoven, John W.
name: Merchant, Michael J.
name: Mackay, Ran I.
name: Kirkby, Karen J.
Publisher: name: Frontiers Media S.A.
Year: 2024

description: Particle therapy is a growing cancer treatment modality worldwide. However, there still remains a number of unanswered questions considering differences in the biological response between particles and photons. These questions, and probing of biological mechanisms in general, necessitate experimental investigation. The “Infrastructure in Proton International Research” (INSPIRE) project was created to provide an infrastructure for European research, unify research efforts on the topic of proton and ion therapy across Europe, and to facilitate the sharing of information and resources. This work highlights the radiobiological capabilities of the INSPIRE partners, providing details of physics (available particle types and energies), biology (sample preparation and post-irradiation analysis), and researcher access (the process of applying for beam time). The collection of information reported here is designed to provide researchers both in Europe and worldwide with the tools required to select the optimal center for their research needs. We also highlight areas of redundancy in capabilities and suggest areas for future investment.
Enhanced photoenergy harvesting and extreme Thomson effect in hydrodynamic electronic systems
Creators: name: Andersen, Trond I.
name: Smith, Thomas B.
name: Principi, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The thermoelectric (TE) properties of a material are dramatically altered when electron-electron interactions become the dominant scattering mechanism. In the degenerate hydrodynamic regime, the thermal conductivity is reduced and becomes a {\it decreasing} function of the electronic temperature, due to a violation of the Wiedemann-Franz (WF) law. We here show how this peculiar temperature dependence gives rise to new striking TE phenomena. These include an 80-fold increase in TE efficiency compared to the WF regime, dramatic qualitative changes in the steady state temperature profile, and an anomalously large Thomson effect. In graphene, which we pay special attention to here, these effects are further amplified due to a doubling of the thermopower.
description: 6 pages, 3 figures
title: 02_0888
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Ferramentas do IBICT que podem úteis na sua pesquisa acadêmica
Creators: name: Gomes, Josir Cardoso
name: Braga, Tiago
name: Pimenta, Ricardo Medeiros
Publisher: name: Zenodo
Year: 2024

description: Apresentação do Curso de Verão 2024 do PPGCI/IBICT que descreve as ferramentas criadas e utilizadas pelo IBICT para auxiliar na pesquisa científica
Calculating charged particle observables using modified Wood Saxon model in HIJING for U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV
Creators: name: Tripathy, S. K.
name: Younus, M.
name: Naik, Z.
name: Sahu, P. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have implemented spherical harmonics in default Wood Saxon distribution of the HIJING model and calculated various physical observables such as transverse momentum, charged particle multiplicity, nuclear modification factor and particle ratios for charged particles at top RHIC energy with collisions of Uranium (U) nuclei. Results have been compared with available experimental data. We observe that, a particular type of collision configuration can produce significant magnitude change in observables. We have noticed that the tip-tip configuration shows higher magnitude of particle yield in central collisions, while the body-body configuration shows higher value in the cases of peripheral collisions, with the flip in the trend occurring for the mid-central U+U collisions. We observe that particle ratios are independent of configuration type.
description: 10 pages, 7 figures
Intracluster Globular Clusters
Creators: name: West, Michael J.
name: Cote, Patrick
name: Jones, Christine
name: Forman, William
name: Marzke, Ronald O.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Globular cluster populations of supergiant elliptical galaxies are known to vary widely, from extremely populous systems like that of UGC 9799, the centrally dominant galaxy in Abell 2052, to globular-cluster-poor galaxies such as NGC 5629 in Abell 2666. Here we propose that these variations point strongly to the existence of a population of globular clusters that are not bound to individual galaxies, but rather move freely throughout the cores of clusters of galaxies. Such intracluster globular clusters may have originated as tidally stripped debris from galaxy interactions and mergers, or alternatively they may have formed in situ in some scenarios of globular cluster formation.
description: 9 pages, uuencoded compressed postscript. Accepted for publication in the Astrophysical Journal Letters
A New Channel for the Detection of Planetary Systems Through Microlensing: I. Isolated Events Due to Planet Lenses
Creators: name: Di Stefano, Rosanne
name: Scalzo, Richard A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose and evaluate the feasibility of a new strategy to search for planets via microlensing. This new strategy is designed to detect planets in "wide" orbits, i.e., with orbital separation, $a$ greater than $\sim 1.5 R_E$. Planets in wide orbits may provide the dominant channel for the microlensing discovery of planets, particularly low-mass (e.g., Earth-mass) planets. This paper concentrates on events in which a single planet serves as a lens, leading to an isolated event of short duration. We point out that a distribution of events due to lensing by stars with wide-orbit planets is necessarily accompanied by a distribution of shorter- duration events. The fraction of events in the latter distribution is proportional to the average value of $\sqrt{q}$, where $q$ is the ratio between \pl and stellar masses. The position of the peak or peaks also provides a measure of the mass ratios typical of planetary systems. We study detection strategies that can optimize our ability to discover isolated short-duration events due to lensing by planets, and find that monitoring employing sensitive photometry is particularly useful. If planetary systems similar to our own are common, even modest changes in detection strategy should lead to the discovery of a few isolated events of short duration every year. We therefore also address the issue of the contamination due to stellar populations of any microlensing signal due to low-mass MACHOs. We describe how, even for isolated events of short duration, it will be possible to test the hypothesis that the lens was a planet instead of a low-mass MACHO, if the central star of the planetary system contributes a measurable fraction of the baseline flux.
description: 37 pages, 6 figure. To be published in the Astrophysical Journal. This is part one of a series of papers on microlensing by planetary systems containing wide-orbit planets; the series represents a reorganization and extension of astro-ph/9711013
Nature of the Magnetic Interactions in Sr$_3$NiIrO$_6$
Creators: name: Birol, Turan
name: Haule, Kristjan
name: Vanderbilt, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Iridates abound with interesting magnetic behaviours because of their strong spin-orbit coupling. Sr$_3$NiIrO$_6$ brings together the spin-orbital entanglement of the Ir$^{4+}$ ion with a 3$d$ Ni cation and a one-dimensional crystal structure. It has a ferrimagnetic ground state with a 55 T coercive field. We perform a theoretical study of the magnetic interactions in this compound, and elucidate the role of anisotropic symmetric exchange as the source of its strong magnetic anisotropy. Our first-principles calculations reproduce the magnon spectra of this compound and predict a signature in the cross sections that can differentiate the anisotropic exchange from single-ion anisotopy.
description: 7 pages, 5 figures
Self-similarity and scaling behavior of scale-free gravitational clustering
Creators: name: Colombi, S.
name: Bouchet, F. R.
name: Hernquist, L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the scaling properties of the probability distribution of the smoothed density field in $N$-body simulations of expanding universes with scale-free initial power-spectra, with particular attention to the predictions of the stable clustering hypothesis. We concentrate our analysis on the ratios $S_Q(\ell)\equiv {\bar ξ}_Q/{\bar ξ}_2^{Q-1}$, $Q \leq 5$, where ${\bar ξ}_Q$ is the averaged $Q$-body correlation function over a cell of radius $\ell$. The behavior of the higher order correlations is studied through that of the void probability distribution function. As functions of ${\bar ξ}_2$, the quantities $S_Q$, $3 \leq Q \leq 5$, exhibit two plateaus separated by a smooth transition around ${\bar ξ}_2 \sim 1$. In the weakly nonlinear regime, ${\bar ξ}_2 \la 1$, the results are in reasonable agreement with the predictions of perturbation theory. In the nonlinear regime, ${\bar ξ}_2 > 1$, the function $S_Q({\bar ξ}_2)$ is larger than in the weakly nonlinear regime, and increasingly so with $-n$. It is well-fitted by the expression $S_Q= ({\bar ξ}_2/100)^{0.045(Q-2)}\ {\widetilde S}_Q$ for all $n$. This weak dependence on scale proves {\em a small, but significant departure from the stable clustering predictions} at least for $n=0$ and $n=+1$. The analysis of $P_0$ confirms that the expected scale-invariance of the functions $S_Q$ is not exactly attained in the part of the nonlinear regime we probe, except possibly for $n=-2$ and marginally for $n=-1$. In these two cases, our measurements are not accurate enough to be discriminant.
description: 31 pages, postscript file, figure 1 missing. Postscript file including figure 1 available at ftp://ftp-astro-theory.fnal.gov:/pub/Publications/Pub-95-256-A
Vultur aura Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Accipitriformes
Cathartidae
Vultur
Vultur aura

description: Vultur aura [spec. nov.]
V. fuscogriseus, remigibus nigris, rostro albo.
Tzopilotle s. Aura. Hernand. mex. 331.
Urubu brasiliensibus. Marcgr. bras. 207. Willugb. orn. 68. Raj. av. 10. 180.
Buteo specie gallo-pavonis. Catesb. car. 1. p. 6. t. 6.
Vultur gallinae africanae facie. Sloan. jam. 2. p. 294. t. 254.
Vultur pullus, capite implumi, cute crassa rugosa ultra aperturas nasales laxata. Brown. jam. 471.
Habitat in America calidiore.
Privilegio munitus in Jamaica.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on pages 86-87, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Threshold corrections of $χ_{\rm c}(2P)$ and $χ_{\rm b}(3P)$ states and $J/ψρ$ and $J/ψω$ transitions of the $X(3872)$ in a coupled-channel model
Creators: name: Ferretti, J.
name: Santopinto, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the masses of $χ_{\rm c}(2P)$ and $χ_{\rm b}(3P)$ states with threshold corrections in a coupled-channel model. Here, the meson quarkonium core is augmented by higher Fock components due to pair-creation effects. According to our results, we interpret the resonances characterized by very small threshold corrections, like $χ_{\rm b}(3P)$'s, as almost pure quarkonia, and those states characterized by non-negligible threshold corrections, like the $X(3872)$, as quarkonium cores plus meson-meson components. We also study the $J/ψρ$ and $J/ψω$ hidden-flavor strong decays of the $X(3872)$. The decays are calculated as the dissociation of one of these components ($D^0 \bar D^{0*}$) into a $c \bar c$ state ($J/ψ$) plus a light meson ($ρ$ or $ω$) in a potential model. In particular, our result for the ratio between the $X(3872) \rightarrow J/ψω$ and $J/ψρ$ widths (0.6) is compatible with the present experimental data ($0.8\pm0.3$) within the experimental error.
SMM creates more sensing, adapting and reacting capabilities of Smart Textile
Creators: name: Rumon, md abdullah al
Publisher: name: figshare
Year: 2021
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering
subject: 91205 Functional Materials
subject: 91012 Textile Technology

description: Today’s textile concept isn’t as similar as past and expectations around on textile have been changing more and more. At this point, shape memory materials can drive to solve these needs in textile due to its exclusive smart features. Shape memory materials (SMM) are exclusive materials that can remember and recover according to programmed deformation upon external stimulus such as chemicals, temperature, pH, light, a magnetic field, etc. Shape memory materials have been used in many areas and application on textiles of this technology has covered a wide range of usage recently. Shape-memory materials can be used in textile as clothing, yarn, fabric and sophisticated garment designing. The Applications and possibilities are huge by our imagination and creativity.
CoTO: A Novel Approach for Fuzzy Aggregation of Semantic Similarity Measures
Creators: name: Hagenberg, Jorge
Publisher: name: figshare
Year: 2018
Subjects: subject: 80604 Database Management
subject: FOS: Computer and information sciences
subject: 80105 Expert Systems
subject: 80606 Global Information Systems
subject: Information Systems
subject: 80704 Information Retrieval and Web Search
subject: FOS: Media and communications

description: Semantic similarity measurement aims to determine the likeness between two text expressions that use different lexicographies for representing the same real object or idea. There are a lot of semantic similarity measures for addressing this problem. However, the best results have been achieved when aggregating a number of simple similarity measures. This means that after the various similarity values have been calculated, the overall similarity for a pair of text expressions is computed using an aggregation function of these individual semantic similarity values. This aggregation is often computed by means of statistical functions. In this work, we present CoTO (Consensus or Trade-Off) a solution based on fuzzy logic that is able to outperform these traditional approaches.
The cosmological origin of the Tully-Fisher relation
Creators: name: Steinmetz, Matthias
name: Navarro, Julio
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use high-resolution cosmological simulations that include the effects of gasdynamics and star formation to investigate the origin of the Tully-Fisher relation in the standard Cold Dark Matter cosmogony. Luminosities are computed for each model galaxy using their full star formation histories and the latest spectrophotometric models. We find that at z=0 the stellar mass of model galaxies is proportional to the total baryonic mass within the virial radius of their surrounding halos. Circular velocity then correlates tightly with the total luminosity of the galaxy, reflecting the equivalence between mass and circular velocity of systems identified in a cosmological context. The slope of the relation steepens slightly from the red to the blue bandpasses, and is in fairly good agreement with observations. Its scatter is small, decreasing from \~0.45 mag in the U-band to ~0.34 mag in the K-band. The particular cosmological model we explore here seems unable to account for the zero-point of the correlation. Model galaxies are too faint at z=0 (by about two magnitudes) if the circular velocity at the edge of the luminous galaxy is used as an estimator of the rotation speed. The Tully-Fisher relation is brighter in the past, by about ~0.7 magnitudes in the B-band at z=1, at odds with recent observations of z~1 galaxies. We conclude that the slope and tightness of the Tully-Fisher relation can be naturally explained in hierarchical models but that its normalization and evolution depend strongly on the star formation algorithm chosen and on the cosmological parameters that determine the universal baryon fraction and the time of assembly of galaxies of different mass.
description: 5 pages, 4 figures included, submitted to ApJ (Letters)
Modelling Energy Demand from Air Conditioning in Households Using MAED: Suriname Case Study
Creators: name: Jalimsing, Gyany
Publisher: name: Zenodo
Year: 2024
Subjects: Suriname
Electricity
Residential
Efficiency
MAED

description: This report was created during the EMP-LAC 2024 capacity building event organized by the Climate Compatible Growth Programme, with training being provided by Ilse Berdellans Escobar of the International Atomic Energy Agency (IAEA) for the Model for Analysis of Energy Demand (MAED) track.
Electron mobility in graphene without invoking the Dirac equation
Creators: name: Ullal, Chaitanya K.
name: Shi, Jian
name: Sundararaman, Ravishankar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Dirac point and linear band structure in Graphene bestow it with remarkable electronic and optical properties, a subject of intense ongoing research. Explanations of high electronic mobility in graphene, often invoke the masslessness of electrons based on the effective relativistic Dirac-equation behavior, which are inaccessible to most undergraduate students and are not intuitive for non-physics researchers unfamiliar with relativity. Here, we show how to use only basic concepts from semiconductor theory and the linear band structure of graphene to explain its unusual effective mass and mobility, and compare them with conventional metals and semiconductors. We discuss the more intuitive concept of transverse effective mass that emerges naturally from these basic derivations, which approaches zero in the limit of undoped graphene at low temperature and is responsible for its extremely high mobility.
description: 5 pages, 3 figures
title: Growth and Recruitment of Two Penaeids in the Bay of St. Louis, Mississippi During 1979
Creators: name: Heaton, Teresa C.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1981

description: Juvenile brown (Penaeus aztecus, Ives) and white (Penaeus setiferus, Linnaeus) shrimp were collected from two stations of a nursery area in St. Louis Bay Mississippi, during May to October, 1979. Periods of shrimp recruitment and growth were determined to discern whether the concurrent environmental variables of salinity and temperature had an influence on shrimp abundance and yield. Growth estimates were obtained from length frequency measurements of trawl samples taken over a 24-h period per month from each station. An analysis of variance of length versus the variables of sex, month, station, time of day, salinity and temperature was run for each species. Station, month, and month-·sex were found significant (P≤ .05) for both species. Additionally, sex and station-month were found significant (P≤ .05) for P. aztecus. A multiple regression of number of shrimp versus salinity, temperature, and salinity and temperature revealed that shrimp number significantly ( P≤ .05) varies with changes in salinity in P. aztecus. Temperature appeared to have little effect on shrimp abundance and productivity.
An Overview of Current Ontology Meta-Matching Solutions
Creators: name: Hagenberg, Jorge
Publisher: name: figshare
Year: 2018
Subjects: subject: 80604 Database Management
subject: FOS: Computer and information sciences
subject: 80105 Expert Systems
subject: 80606 Global Information Systems
subject: Information Systems
subject: 80107 Natural Language Processing

description: Nowadays, there are a lot of techniques and tools for addressing the ontology matching problem; however, the complex nature of this problem means that the existing solutions are unsatisfactory. This work intends to shed some light on a more flexible way of matching ontologies using ontology meta-matching. This emerging technique selects appropriate algorithms and their associated weights and thresholds in scenarios where accurate ontology matching is necessary. We think that an overview of the problem and an analysis of the existing state-of-the-art solutions will help researchers and practitioners to identify the most appropriate specific features and global strategies in order to build more accurate and dynamic systems following this paradigm.
MANUFACTURED EXPORTS FROM DEVELOPING COUNTRIES AND GOVERNMENT , POLICY UNDER IMPERFECT INTERNATIONAL MARKETS: CORPORATE INCOME TAXES AND EXCHANGE RATE
Creators: name: Tello, Mario
name: Tello, Mario
Publisher: name: Unknown
Year: 1986
Subjects: International Development
International Relations/Trade

description: This paper deals with the effects of corporate income tax and exchange rate policies on exports of intermediate goods from a developing country, the foreign exchange earnings, and welfare derived from them under different forms of organization and ownership of foreign firms with activities in the export sector of that country. These foreign firms are competing in an oligopolistic market for the finished goods which use the intermediate goods produced in the developing country. The analysis is simple and the conditions for optimal policy intervention have direct empirical content.
Mass and Light of Abell 370: A Strong and Weak Lensing Analysis
Creators: name: Strait, Victoria
name: Bradac, Marusa
name: Hoag, Austin
name: Huang, Kuang-Han
name: Treu, Tommaso
name: Wang, Xin
name: Amorin, Ricardo
name: Castellano, Marco
name: Fontana, Adriano
name: Lemaux, Brian
name: Merlin, Emiliano
name: Schmidt, Kasper B.
name: Schrabback, Tim
name: Tomczack, Adam
name: Trenti, Michele
name: Vulcani, Benedetta
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new gravitational lens model of the Hubble Frontier Fields cluster Abell 370 ($z = 0.375$) using imaging and spectroscopy from Hubble Space Telescope and ground-based spectroscopy. We combine constraints from a catalog of 1344 weakly lensed galaxies and 39 multiply-imaged sources comprised of 114 multiple images, including a system of multiply-imaged candidates at $z=7.93 \pm 0.02$, to obtain a best-fit mass distribution using the cluster lens modeling code Strong and Weak Lensing United. As the only analysis of A370 using strong and weak lensing constraints from Hubble Frontier Fields data, our method provides an independent check on assumptions in other methods on the mass distribution. Convergence, shear, and magnification maps are made publicly available through the HFF website. We find that the model we produce is similar to models produced by other groups, with some exceptions due to the differences in lensing code methodology. In an effort to study how our total projected mass distribution traces light, we measure the stellar mass density distribution using Spitzer/Infrared Array Camera imaging. Comparing our total mass density to our stellar mass density in a radius of 0.3 Mpc, we find a mean projected stellar to total mass ratio of $\langle f* \rangle = 0.011 \pm 0.003$ (stat.) using the diet Salpeter initial mass function. This value is in general agreement with independent measurements of $\langle f* \rangle$ in clusters of similar total mass and redshift.
Peak statistics on COBE maps
Creators: name: Fabbri, R.
name: Torres, S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform the stastistics of temperature maxima and minima in COBE-DMR 2-year maps. For power-law spectra the surface distribution of peaks implies an amplitude consistent with more conventional analyses of COBE data (for instance, we get $Q_{\rm rms-PS}=17\pm 3\ μ$K for a spectral index $% n=1),$ but not with the measured quadrupole $Q_{\rm rms}=6\pm 3\ μ$K. This provides further support for the existence an infrared cutoff in the cosmic spectrum.
description: Latex file, Astronomy & Astrophysics L-aa style. Hardcopy figures available separately, send requests to fabbri@vaxfi.fi.infn.it
Attractive interaction between superconducting vortices in tilted magnetic fields
Creators: name: Correa, Alexandre
name: Mompean, Federico
name: Guillamon, Isabel
name: Herrera, Edwin
name: Garcia-Hernandez, Mar
name: Yamamoto, Takashi
name: Kashiwagi, Takanari
name: Kadowaki, Kazuo
name: Buzdin, Alexander I.
name: Suderow, Hermann
name: Munuera, Carmen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Many practical applications of high T$_c$ superconductors involve layered materials and magnetic fields applied on an arbitrary direction with respect to the layers. When the anisotropy is very large, Cooper pair currents can circulate either within or perpendicular to the layers. Thus, tilted magnetic fields lead to intertwined lattices of Josephson and Abrikosov vortices, with quantized circulation across and within layers, respectively. Transport in such intertwined lattices has been studied in detail, but direct observation and manipulation of vortices remains challenging. Here we present magnetic force microscopy experiments in tilted magnetic fields in the extremely quasi-two dimensional superconductor $Bi_{2}Sr_{2}CaCu_{2}O_{8}$. We trigger Abrikosov vortex motion in between Josephson vortices, and find that Josephson vortices in different layers can be brought on top of each other. Our measurements suggest that intertwined lattices in tilted magnetic fields can be intrinsically easy to manipulate thanks to the mutual interaction between Abrikosov and Josephson vortices.
Vultur barbatus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Accipitriformes
Cathartidae
Vultur
Vultur barbatus

description: Vultur barbatus [spec. nov.]
V. albidus, dorso fusco, jugulo barbato, rostro incarnato, capite linea nigra cincto.
Vultur aureus. Gesn. av. 783. t. 781.
Vultur barbatus. Edv. av. 106. t. 106.
Habitat in Africa.
Ad basin maxillae inferioris barba dependet; frons oculorumque regio atra.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 87, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0226v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0226v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0226v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Limits on Interactions between Weakly Interacting Massive Particles and Nucleons Obtained with NaI(Tl) crystal Detectors
Creators: name: Kim, K. W.
name: Adhikari, G.
name: Adhikari, P.
name: Choi, S.
name: Ha, C.
name: Hahn, I. S.
name: Jeon, E. J.
name: Joo, H. W.
name: Kang, W. G.
name: Kim, H. J.
name: Kim, N. Y.
name: Kim, S. K.
name: Kim, Y. D.
name: Kim, Y. H.
name: Ko, Y. J.
name: Lee, H. S.
name: Lee, J. S.
name: Lee, J. Y.
name: Lee, M. H.
name: Leonard, D. S.
name: Olsen, S. L.
name: Park, B. J.
name: Park, H. K.
name: Park, H. S.
name: Park, K. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Limits on the cross section for weakly interacting massive particles (WIMPs) scattering off nucleons in the NaI(Tl) detectors at the Yangyang Underground Laboratory are obtained with a 2967.4 kg*day data exposure. Nuclei recoiling are identified by the pulse shape of scintillating photon signals. Data are consistent with no nuclear recoil hypothesis, and 90% confidence level upper limits are set. These limits partially exclude the DAMA/LIBRA region of WIMP-sodium interaction with the same NaI(Tl) target detector. This 90% confidence level upper limit on WIMP-nucleon spin-independent cross section is 3.26*10^-4 pb for a WIMP mass at 10 GeV/c^2.
L'influence de la valeur à vie d'un client sur la performance marketing des entreprises de services : Elaboration d'un modèle conceptuel théorique
Creators: name: Yousfi AOUAD
name: Akram BOUATERIA
name: Chouaib DAKOUAN
Publisher: name: Zenodo
Year: 2024

description: Cette recherche vise à explorer l'impact de la Customer Lifetime Value (CLV) sur la performance marketing dans le secteur des services. La question principale de cette étude est : "Comment la compréhension et la maximisation de la CLV peuvent-elles servir de leviers stratégiques pour améliorer les performances marketing dans le secteur des services ?" Ce sujet est devenu particulièrement pertinent dans le contexte économique actuel caractérisé par une concurrence accrue et des comportements de consommateurs en constante évolution.

L'article débute par une analyse approfondie des principes de la CLV et de la performance marketing, en s'appuyant sur des travaux de recherche influents tels que ceux de Kotler et al. (2002) et V. Kumar (2008). Il examine comment une CLV élevée, renforcée par des stratégies de Gestion de la Relation Client (GRC) efficaces, peut influencer positivement la performance marketing. Le cœur de l'article se concentre sur la construction d'un cadre théorique robuste et la formulation d'hypothèses spécifiques, inspirées par des recherches telles que celles de Kamakura et al. (2002) et Homburg et al. (2017). Ces hypothèses explorent divers aspects de l'impact de la CLV sur la performance marketing, y compris le ROI, le taux de conversion, l'acquisition de nouveaux clients et la croissance des revenus marketing.

Un modèle conceptuel théorique est proposé pour valider ces hypothèses. Ce modèle vise à encapsuler les interactions complexes entre la CLV et la performance marketing, avec un accent particulier sur le secteur des services. Il s'agit d'une extension d'une étude précédente sur la GRC et la CLV.

La validation du modèle se fait à travers une étude empirique dans le secteur des services au Maroc, avec un focus particulier sur le secteur bancaire marocain. Cette recherche empirique utilise des méthodes statistiques pour tester la robustesse du modèle dans un contexte professionnel réel.

En conclusion, l'étude offre un nouvel éclairage sur l'interaction entre la CLV et la performance marketing, enrichissant la littérature existante et fournissant des insights pratiques et théoriques significatifs. Elle souligne l'importance cruciale de la GRC dans la formation de la CLV et, par extension, dans la réussite des stratégies marketing des entreprises de services, s'inscrivant dans une démarche de recherche continue pour comprendre l'importance croissante de ces concepts dans le paysage économique dynamique actuel.
Compact ultracold electron source based on a grating magneto optical trap
Creators: name: Franssen, J. G. H.
name: de Raadt, T. C. H.
name: van Ninhuijs, M. A. W.
name: Luiten, O. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The ultrafast and ultracold electron source, based on near-threshold photoionisation of a laser-cooled and trapped atomic gas, offers a unique combination of low transverse beam emittance and high bunch charge. Its use is however still limited because of the required cold-atom laser-cooling techniques. Here we present a compact ultracold electron source based on a grating magneto-optical trap (GMOT), which only requires one trapping laser beam that passes through a transparent accelerator module. This makes the technique more widely accessible and increases its applicability. We show the GMOT can be operated with a hole in the center of the grating and with large electric fields applied across the trapping region, which is required for extracting electron bunches. The calculated values of the applied electric field were found to agree well with measured Stark shifts of the laser cooling transition. The electron beams extracted from the GMOT have been characterised. Beam energies up to 10 keV were measured using a time-of-flight method. The normalised root-mean-squared transverse beam emittance was determined using a waist scan method, resulting in $ε= 1.9 \rm{nm}$. The root-mean-squared transverse size of the ionisation volume is $30 μ\rm{m}$ or larger, implying an electron source temperature in the few-10K range, $2-3$ orders of magnitude lower than conventional electron sources, based on photoemission or thermionic emission from solid state surfaces.
Oxygen ion transport and dopant segregation in strained oxide thin films
Creators: name: Harrington, George
Publisher: name: Imperial College London
Year: 2015

description: Modified ionic transport at interfaces in oxide conductors has received significant interest recently, yet previous studies have provided inconsistent and often controversial results. Lattice strain occurring at heterogeneous interfaces or surrounding dislocations is often speculated as the cause for enhanced transport properties, yet direct evidence for this is lacking. The aim of this work was to investigate the possibility for modified oxygen conductivity at interfaces and develop a greater understanding of the underlying mechanisms. In this work, it was shown that the crystallographic orientation of yttria-stabilised zirconia (YSZ) films fabricated by pulsed laser deposition (PLD), could be altered by the roughness and the temperature of the substrate during deposition. Furthermore, the films were seen to feature an expanded out-of-plane lattice parameter, which was found to be dependent upon the deposition temperature, substrate, the orientation of film, and the thermal history after growth. The ionic transport of YSZ films fabricated on a range of substrates was assessed as a function of film thickness using electrochemical impedance spectroscopy (EIS) and a novel method of oxygen isotope exchange tracer diffusion (IETD). No enhancement over the conductivity of bulk YSZ was observed, despite expanded out-of-plane lattice parameters, substrates representing both positive and negative lattice mismatch, and a high density of interfacial dislocations. Instead, all interface regions were found to be more resistive due to a higher density of grain boundaries. Finally, gadolinia-doped ceria (CGO) films were analysed by low energy ion scattering (LEIS), to investigate the effects of dopant segregation to the surface and sub-surface regions. Gd segregation was found to occur for all films and observed to increase for higher annealing temperatures. Investigations into the affect of the lattice parameter on the rate of dopant segregation showed a possible link between segregation and lattice strain.