cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental review of distance sensors for indoor mapping
Creators: name: Mirdanies, Midriem
name: Saputra, Roni Permana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In this paper, some of the distance sensor, including Kinect, Hokuyo UTM-30LX, and RPLidar were observed experimentally. Strengths and weaknesses of each sensor were reviewed so that it can be used as a reference for selecting a suitable sensor for any particular application. A software application has been developed in C programming language as a platform for gathering information for all tested sensors. According to the experiment results, it showed that Hokuyo UTM-30LX results in random normally distributed error on measuring distance with average error 21.94 mm and variance 32.11. On the other hand, error measurement resulted by Kinect and RPLidar strongly depended on measured distance of the object from the sensors, while measurement error resulted by Kinect had a negative correlation with the measured distance and the error resulted by RPLidar sensor had a positive correlation with the measured distance. The performance of these three sensors for detecting a transparent object shows that the Kinect sensors can detect the transparent object on its effective range measurement, Hokuyo UTM-30LX can detect the transparent object in the distance more than equal to 200 mm, and the RPLidar sensor cannot detect the transparent object at all tested distance. Lastly, the experiment shows that the Hokuyo UTM-30LX has the fastest processing time significantly, and the RPLidar has the slowest processing time significantly, while the processing time of Kinect sensor was in between. These processing times were not significantly affected by various tested distance measurement.
description: 10 pages, 15 figures, published in Journal of Mechatronics, Electrical Power, and Vehicular Technology 8 (2017) 85-94
Towards More Precise Survey Photometry for PanSTARRS and LSST: Measuring Directly the Optical Transmission Spectrum of the Atmosphere
Creators: name: Stubbs, Christopher W.
name: High, F. William
name: George, Matthew R.
name: DeRose, Kimberly L.
name: Blondin, Stephane
name: Tonry, John L.
name: Chambers, Kenneth C.
name: Granett, Benjamin R.
name: Burke, David L.
name: Smith, R. Chris
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by the recognition that variation in the optical transmission of the atmosphere is probably the main limitation to the precision of ground-based CCD measurements of celestial fluxes, we review the physical processes that attenuate the passage of light through the Earth's atmosphere. The next generation of astronomical surveys, such as PanSTARRS and LSST, will greatly benefit from dedicated apparatus to obtain atmospheric transmission data that can be associated with each survey image. We review and compare various approaches to this measurement problem, including photometry, spectroscopy, and LIDAR. In conjunction with careful measurements of instrumental throughput, atmospheric transmission measurements should allow next-generation imaging surveys to produce photometry of unprecedented precision. Our primary concerns are the real-time determination of aerosol scattering and absorption by water along the line of sight, both of which can vary over the course of a night's observations.
description: 41 pages, 14 figures. Accepted PASP
Properly ordered dimers, $R$-charges, and an efficient inverse algorithm
Creators: name: Gulotta, Daniel R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $\mathcal{N}=1$ superconformal field theories that arise in AdS-CFT from placing a stack of D3-branes at the singularity of a toric Calabi-Yau threefold can be described succinctly by dimer models. We present an efficient algorithm for constructing a dimer model from the geometry of the Calabi-Yau. Since not all dimers produce consistent field theories, we perform several consistency checks on the field theories produced by our algorithm: they have the correct number of gauge groups, their cubic anomalies agree with the Chern-Simons coefficients in the AdS dual, and all gauge invariant chiral operators satisfy the unitarity bound. We also give bounds on the ratio of the central charge of the theory to the area of the toric diagram. To prove these results, we introduce the concept of a properly ordered dimer.
description: 33 pages, 19 figures, some corrections and clarifications
Cosmographic approach to Running Vacuum dark energy models: new constraints using BAOs and Hubble diagrams at higher redshifts
Creators: name: Rezaei, Mehdi
name: Sola, Joan
name: Malekjani, Mohammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we study different types of dark energy (DE) models in the framework of the cosmographic approach, with emphasis on the Running Vacuum models (RVMs). We assess their viability using different information criteria and compare them with the so-called Ghost DE models (GDEs) as well as with the concordance $Λ$CDM model. We use the Hubble diagrams for Pantheon SnIa, quasars (QSOs), gamma-ray bursts (GRBs) as well as the data on baryonic acoustic oscillations (BAOs) in four different combinations. Upon minimizing the $χ^2$ function of the distance modulus in the context of the Markov Chain Monte Carlo method (MCMC), we put constraints on the current values of the standard cosmographic parameters in a model-independent way. It turns out that, in the absence of BAOs data, the various DE models generally exhibit cosmographic tensions with the observations at the highest redshifts (namely with the QSOs and GRBs data). However, if we include the robust observations from BAOs to our cosmographic sample, the $Λ$CDM and RVMs are clearly favored against the GDEs. Finally, judging from the perspective of the deviance information criterion (DIC), which enables us to compare models making use of the Markov chains of the MCMC method, we conclude that the RVMs are the preferred kind of DE models. We find it remarkable that these models, which had been previously shown to be capable of alleviating the $σ_8$ and $H_0$ tensions, appear now also as the most successful ones at the level of the cosmographic analysis.
description: 16 pages, 2 figures, Accepted for publication in MNRAS
Automatic Guided Vehicles System and Its Coordination Control for Containers Terminal Logistics Application
Creators: name: Saputra, Roni Permana
name: Rijanto, Estiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Automatic Guided Vehicle (AGV) has been widely applied in automatic logistics system because it provides flexibility and efficiency. This paper addresses review and design of multi AGVs system (MAGS) and its coordination control to be implemented at containers terminal logistics systems. It focuses on design of electric AGV and supervisory control to coordinate multi AGVs. Firstly, related previous works by other researchers are reviewed including containers terminal system, application of AGV in logistics systems and multi mobile robots control systems. Secondly, application of AGV system in containers terminal is proposed including AGV design specification, AGV control method, multi AGV system supervisory control method, and containers terminal port model. Conclusions have been obtained as follows: an electric AGV may be developed using electric motors with total power between 700-900KW and speed of 228 rpm; a MAGVS is proposed based on free ranging navigation system using GPS, digital compass and rotary encoder sensors; path planning, coordination and traffic management control is conducted by the supervisory controller based on priority based coordinative (PBC) control algorithm; a model of MAGVS for containers terminal logistics system can be developed using the navigation system and PBC control algorithm.
description: 10 pages, 16 figures, presented at International Logistic Seminar and Workshop 2012, Jakarta, Indonesia
Setting global priorities for the conservation of tetrapod phylogenetic diversity
Creators: name: Gumbs, Rikki Stephen
Publisher: name: Imperial College London
Year: 2020

description: We have entered the sixth mass extinction in Earth’s history. Our ever-growing extraction of natural resources and conversion of natural habitats is eroding global biodiversity. Averting the loss of biodiversity is essential to maintaining the planet’s ability to support human life. However, given the limited resources available for conservation action, we must prioritise effectively. Biodiversity, in the purest sense, is living variation. One measure of biodiversity, phylogenetic diversity, quantifies the collective contribution of species to the Tree of Life and is linked to the maintenance of future options for humanity. Phylogenetic diversity is increasingly used in conservation prioritisation exercises to capture aspects of biodiversity not represented by species richness alone. In this thesis I will utilise global datasets to explore humanity’s impact on the phylogenetic diversity of the world’s tetrapods. I will then identify priorities for conserving threatened phylogenetic diversity across the world’s amphibians, birds, mammals and reptiles. To facilitate the accurate prioritisation of evolutionarily distinct tetrapod species for conservation, I will develop a novel approach to overcome deficiencies in phylogenetic data for poorly-known species. I will then extend existing approaches to develop a spatially-explicit metric to identify highly irreplaceable regions and species responsible for large amounts of phylogenetic diversity under threat from human encroachment. Finally, I will explore the impacts of major threat types on phylogenetic diversity to determine whether certain extinction drivers pose disproportionately large threats to global biodiversity. The research presented in this thesis will offer new insights into the threats facing phylogenetic diversity and provide advances in global conservation priority setting for the tetrapod Tree of Life.
Daubechies wavelets as a basis set for density functional pseudopotential calculations
Creators: name: Genovese, Luigi
name: Neelov, Alexey
name: Goedecker, Stefan
name: Deutsch, Thierry
name: Ghasemi, Seyed Alireza
name: Willand, Alexander
name: Caliste, Damien
name: Zilberberg, Oded
name: Rayson, Mark
name: Bergman, Anders
name: Schneider, Reinhold
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Daubechies wavelets are a powerful systematic basis set for electronic structure calculations because they are orthogonal and localized both in real and Fourier space. We describe in detail how this basis set can be used to obtain a highly efficient and accurate method for density functional electronic structure calculations. An implementation of this method is available in the ABINIT free software package. This code shows high systematic convergence properties, very good performances and an excellent efficiency for parallel calculations.
description: 15 pages, 11 figures
Submillimeter arcsecond-resolution mapping of the highly collimated protostellar jet HH 211
Creators: name: Lee, Chin-Fei
name: Ho, Paul T. P.
name: Palau, Aina
name: Hirano, Naomi
name: Bourke, Tyler L.
name: Shang, Hsien
name: Zhang, Qizhou
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have mapped the protostellar jet HH 211 in 342 GHz continuum, SiO ($J=8-7$), and CO ($J=3-2$) emission at $\sim$ \arcs{1} resolution with the Submillimeter Array (SMA). Thermal dust emission is seen in continuum at the center of the jet, tracing an envelope and a possible optically thick compact disk (with a size $
description: 24 pages, 11 figures
Super Linear Algebra
Creators: name: Kandasamy, W. B. Vasantha
name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 04-xx, 11-xx

description: In this book, the authors introduce the notion of Super linear algebra and super vector spaces using the definition of super matrices defined by Horst (1963). This book expects the readers to be well-versed in linear algebra. Many theorems on super linear algebra and its properties are proved. Some theorems are left as exercises for the reader. These new class of super linear algebras which can be thought of as a set of linear algebras, following a stipulated condition, will find applications in several fields using computers. The authors feel that such a paradigm shift is essential in this computerized world. Some other structures ought to replace linear algebras which are over a century old. Super linear algebras that use super matrices can store data not only in a block but in multiple blocks so it is certainly more powerful than the usual matrices. This book has 3 chapters. Chapter one introduces the notion of super vector spaces and enumerates a number of properties. Chapter two defines the notion of super linear algebra, super inner product spaces and super bilinear forms. Several interesting properties are derived. The main application of these new structures in Markov chains and Leontief economic models are also given in this chapter. The final chapter suggests 161 problems mainly to make the reader understand this new concept and apply them.
description: 293 pages
On a Holographic Model for Confinement/Deconfinement
Creators: name: Bayona, C. A. Ballon
name: Boschi-Filho, Henrique
name: Braga, Nelson R. F.
name: Zayas, Leopoldo A. Pando
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the thermodynamics of the hard wall model, which consists in the introduction of an infrared cut-off in asymptotically AdS spaces. This is a toy model for confining backgrounds in the context of the gauge/gravity correspondence. We use holographic renormalization and reproduce the existence of a Hawking Page phase transition recently discussed by Herzog. We also show that the entropy jumps from $N^0$ to $N^2$, which reinforces the interpretation of this transition as the gravity dual of confinement/deconfinement. We also show that similar results hold for the phenomenologically motivated soft wall model, underlining the potential universality of our analysis.
description: 14 pages. V2: We included a new section discussing the soft wall model and new references. V3: We clarified some points and updated the references. Results unchanged. Version published in PRD
Prospects for near-infrared characterisation of hot Jupiters with VSI
Creators: name: Renard, S.
name: Absil, O.
name: Berger, J. -P.
name: Bonfils, X.
name: Forveille, T.
name: Malbet, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we study the feasibility of obtaining near-infrared spectra of bright extrasolar planets with the 2nd generation VLTI Spectro-Imager instrument (VSI), which has the required angular resolution to resolve nearby hot Extrasolar Giant Planets (EGPs) from their host stars. Taking into account fundamental noises, we simulate closure phase measurements of several extrasolar systems using four 8-m telescopes at the VLT and a low spectral resolution (R = 100). Synthetic planetary spectra from T. Barman are used as an input. Standard chi2-fitting methods are then used to reconstruct planetary spectra from the simulated data. These simulations show that low-resolution spectra in the H and K bands can be retrieved with a good fidelity for half a dozen targets in a reasonable observing time (about 10 hours, spread over a few nights). Such observations would strongly constrain the planetary temperature and albedo, the energy redistribution mechanisms, as well as the chemical composition of their atmospheres. Systematic errors, not included in our simulations, could be a serious limitation to these performance estimations. The use of integrated optics is however expected to provide the required instrumental stability (around 10^-4 on the closure phase) to enable the first thorough characterisation of extrasolar planetary emission spectra in the near-infrared.
description: 10 pages, 8 figures, Proc. SPIE conference 7013 "Optical and Infrared Interferometry" (Marseille 2008)
A New Approach to Axial Vector Gauge Theories
Creators: name: Kapoor, A K
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In an earlier paper it has been shown that the ultra violet divergence structure of anomalous U(1) axial vector gauge model in the stochastic quantization scheme is different from that in the conventional quantum field theory. Also it has been shown that the model is expected to be renormalizable. Based on the operator formalism of the stochastic quantization, a new approach to anomalous U(1) axial vector gauge model is proposed. The operator formalism provides a convenient framework for analysis of ultra violet divergences, but the computations in a realistic model become complicated. In this paper a new approach to do computations in the model is formulated directly in four dimensions. The suggestions put forward here will lead to simplification in the study of applications of the axial vector gauge theory, as well as those of other similar models
description: Latex 8 pages
Effect of inelastic collisions on multiphonon Raman scattering in graphene
Creators: name: Basko, D. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We calculate the probabilities of two- and four-phonon Raman scattering in graphene and show how the relative intensities of the overtone peaks encode information about relative rates of different inelastic processes electrons are subject to. If the most important processes are electron-phonon and electron-electron scattering, the rate of the latter can be deduced from the Raman spectra.
X-ray edge problem of graphene
Creators: name: Yang, S. -R. Eric
name: Lee, Hyun C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The X-ray edge problem of graphene with the Dirac fermion spectrum is studied. At half-filling the linear density of states suppresses the singular response of the Fermi liquid, while away from half-filling the singular features of the Fermi liquid reappear. The crossover behavior as a function of the Fermi energy is examined in detail. The exponent of the power-law absorption rate depends both on the intra- and inter-valley scattering, and it changes as a function of the Fermi energy, which may be tested experimentally.
description: 7 pages, 1 figure
Spingersi al di là della finestra: la finestra decostruita. Estetica antiborghese e fantasia speculativa in Zäzilie di Christian Morgenstern
Creators: name: Ferragamo, Emanuela
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: Morgenstern; umoristico; fantasia ; Weltanschauung;

description: The essay "Going beyond the Window: the deconstructed Window" provides a critical interpretation of Zäzilie in Palmstrom (Humoristic Poems, III, 1990:128), one of the humoristic poems by C. Morgenstern. The essay makes an important reference to W. Ross, Zäzilie(II) (in Ein Knie geht einsam durch die Welt, 1989:108–111). In such a context, it first focuses on the concept of anti-bourgeois in Morgenstern's poetics and interprets the reduction of the window to its wooden skeleton as a challenge posed by the man to the role of the objects in bourgeois aesthetics: the deconstructed window turns into the metaphor of an anti-mimetic view of the world. Second, the essay examines Zäzilie within the philosophical side of Morgenstern's poetics: the “philosophical dilettantism” (Giffei, 1931:28). Finally, it provides an analysis of Zäzilie based on the main concepts of Morgenstern's poetics. Such an analysis highlights that Zäzilie's housework reproduces the author's never-ending philosophical research and his way of looking “beyond and though” the man (Morgenstern, Letters, 1979:138).
description: Altre Modernità, 2015: NUMERO SPECIALE Finestre: sguardi e riflessi, trasparenze e opacità
On the orthogonal polynomials associated with a Lévy process
Creators: name: Solé, Josep Lluís
name: Utzet, Frederic
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G51 (Primary) 42C05 (Secondary)

description: Let $X=\{X_t, t\ge0\}$ be a càdlàg Lévy process, centered, with moments of all orders. There are two families of orthogonal polynomials associated with $X$. On one hand, the Kailath--Segall formula gives the relationship between the iterated integrals and the variations of order $n$ of $X$, and defines a family of polynomials $P_1(x_1), P_2(x_1,x_2),...$ that are orthogonal with respect to the joint law of the variations of $X$. On the other hand, we can construct a sequence of orthogonal polynomials $p^σ_n(x)$ with respect to the measure $σ^2δ_0(dx)+x^2 ν(dx)$, where $σ^2$ is the variance of the Gaussian part of $X$ and $ν$ its Lévy measure. These polynomials are the building blocks of a kind of chaotic representation of the square functionals of the Lévy process proved by Nualart and Schoutens. The main objective of this work is to study the probabilistic properties and the relationship of the two families of polynomials. In particular, the Lévy processes such that the associated polynomials $P_n(x_1,...,x_n)$ depend on a fixed number of variables are characterized. Also, we give a sequence of Lévy processes that converge in the Skorohod topology to $X$, such that all variations and iterated integrals of the sequence converge to the variations and iterated integrals of $X$.
description: Published in at http://dx.doi.org/10.1214/07-AOP343 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Diffusive instabilities of baroclinic lenticular vortices
Creators: name: Labarbe, Joris
name: Kirillov, Oleg N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider a model of a circular lenticular vortex immersed into a deep and vertically stratified viscous fluid in the presence of gravity and rotation. The vortex is assumed to be baroclinic with a Gaussian profile of angular velocity both in the radial and axial directions. Assuming the base state to be in a cyclogeostrophic balance, we derive linearized equations of motion and seek for their solution in a geometric optics approximation to find amplitude transport equations that yield a comprehensive dispersion relation. Applying algebraic Bilharz criterion to the latter, we establish that stability conditions are reduced to three inequalities that define stability domain in the space of parameters. The main destabilization mechanism is either stationary or oscillatory axisymmetric instability depending on the Schmidt number ($Sc$), vortex Rossby number and the difference between the radial and axial density gradients as well as the difference between the epicyclic and vertical oscillation frequencies. We discover that the boundaries of the regions of stationary and oscillatory axisymmetric instabilities meet at a codimension-2 point, forming a singularity of the neutral stability curve. We give an exhaustive classification of the geometry of the stability boundary, depending on the values of the Schmidt number. Although we demonstrate that the centrifugally stable (unstable) Gaussian lens can be destabilized (stabilized) by the differential diffusion of mass and momentum and that destabilization can happen even in the limit of vanishing diffusion, we also describe explicitly a set of parameters in which the Gaussian lens is stable for all $Sc>0$.
"Nihil alieni a me alienum puto". L'alieno e il diverso nello spettacolo UFO Spotykacz di Paweł Passini
Creators: name: Minczewa, Barbara
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: teatro contemporaneo, fantascienza, alieno, diversità

description: On the basis of the Polish performance from 2009 UFO Spotykacz (UFO Encounter) by the director Paweł Passini, this article presents and analyses how the figure of the alien – unusual for the theatre – became the figure of the Other. Three characters apply to be human being suited to meet an alien; this specific casting situation aiming to find the ideal person who could establish a "close encounter" opens the way to a series of questions about the condition of humanity in general and specifically about the condition of the contemporary society. The Freudian idea of Unheimlich, the theory of Julia Kristeva, and Giorgio Agamben's concept of anthropological machine help to answer to questions such as: is there anyone on Earth who truly represents humanity? and why does the Other – in this case represented by the alien – induce such strong emotions, from interest and desire to fear and hatred? The real meeting between the humans and the alien taking place at the end of the performance reveals only the phobias and frustrations of each character. The silent alien is here a metaphorical window that shows the lack of communication between human beings and the deepest fears of contemporary society.
description: Altre Modernità, 2015: NUMERO SPECIALE Finestre: sguardi e riflessi, trasparenze e opacità
Un nuovo sguardo dalla (e sulla) letteratura tedesca contemporanea: l'Adelbert-von-Chamisso-Preis
Creators: name: Pellegrino, Ramona
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: Chamisso-Preis; Chamisso-Literatur; Bosch Stiftung; Harald Weinrich; letteratura transculturale tedesca

description: The Adelbert-von-Chamisso-Preis is a literary prize awarded by the Robert Bosch Stiftung to non-German authors who write in German and chose this language as their form of expression. Since the first prizes were awarded in 1985, 65 writers from more that twenty different countries have won the award. It was Harald Weinrich who convinced the Bosch Stiftung of the value of establishing the Adelbert-von-Chamisso-Preis. In the 1980s, the prize was awarded to what was still called ‘Gastarbeiterliteratur’ and the stress was laid on the writers’ condition of foreigners in Germany rather than on the quality of their literary work, whereas today it has become a substantial part of contemporary German literature and it is sometimes called ‘Chamisso-Literatur’. However, it may be argued that the use of this term, even though it isn't as unsatisfactory as ‘Gastarbeiterliteratur’ or ‘Migrantenliteratur’, still implies that this kind of literature isn't ‘genuine’ German literature. Maybe non-German authors don't need their work to be defined by a special term and some of them don't want a special literary prize either. The question about the ‘Chamisso-Literatur’ is still under discussion. Nevertheless the Adelbert-von-Chamisso-Preis has undoubtedly contributed to spread German literature by non-German authors and to improve its reception.
description: Altre Modernità, 2015: NUMERO SPECIALE Finestre: sguardi e riflessi, trasparenze e opacità
Quantum $RLC$ circuits: charge discreteness and resonance
Creators: name: Utreras-Diaz, Constantino A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a recent article, we have advanced a semiclassical theory of quantum circuits with discrete charge and electrical resistance. In this work, we present a few elementary applications of this theory. For the zero resistance, inductive circuit, we obtain the Stark ladder energies in yet another way; and generalize earlier results by Chandia et. al, for the circuit driven by a combination d.c. plus a.c. electromotive force (emf). As a second application, we investigate the effect of electrical resistance, together with charge discreteness, in the current amplitude, and resonance conditions of a general $RLC$ quantum circuit, including nonlinear effects up to third order on the external sinusoidal emf.
title: A Escola Normal de Lisboa e a formação de professores: percursos, identidade e afirmação sob o signo da pedagogia republicana da educação nova
Creators: name: Mogarro, Maria João
Publisher: name: CIED-Centro Interdisciplinar de Estudos Educacionais. Escola Superior de Educação, Instituto Politécnico de Lisboa
Year: 2018

description: A Escola Normal de Lisboa representa um símbolo maior da formação de professores, nomeadamente durante o período republicano (1910-1926), em que se registou um investimento significativo na formação de professores, tanto ao nível do discurso político e educativo, como no esforço reformista. O ensino normal conheceu então a sua fase de apogeu, pela importância que foi atribuída à formação de docentes, fundamental na conceção da educação como motor do desenvolvimento e progresso do país, assim como na construção do chamado Homem Novo – o cidadão republicano, culto e instruído, participante ativo na vida política da nova nação que a República, laica e democrática, queria criar.
Semiclassical thermodynamics of scalar fields
Creators: name: Bessa, A.
name: de Carvalho, C. A. A.
name: Fraga, E. S.
name: Gelis, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a systematic semiclassical procedure to compute the partition function for scalar field theories at finite temperature. The central objects in our scheme are the solutions of the classical equations of motion in imaginary time, with spatially independent boundary conditions. Field fluctuations -- both field deviations around these classical solutions, and fluctuations of the boundary value of the fields -- are resummed in a Gaussian approximation. In our final expression for the partition function, this resummation is reduced to solving certain ordinary differential equations. Moreover, we show that it is renormalizable with the usual 1-loop counterterms.
description: 24 pages, 5 postscript figures
A survey on Dependable Digital Systems using FPGAs: Current Methods and Challenges
Creators: name: bashi, Farah Natiq Kassab
name: Khairullah, Shawkat S
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Fault tolerance is increasingly being use to design Dependable Digital Systems (DDS), which refers to the capability of a system to keep performing its intended functions in existence of faults. DDS are typically used in Safety-critical system (SCS) such as medical (I&C) devices, Nuclear power Plants (I&C) devices and Aerospace (I&C) systems, the failure in these systems can cause harm to environment, death, injury to people. Different fault tolerance techniques were developed to overcome these issues and that has led to increase the reliability and dependability of applications on Field Programmable Gate Arrays (FPGAs). In this paper, multiple related works are present dealing with different types of faults and fault tolerance methods in FPGA based systems. Furthermore, a comparison between the evaluation metrics of previous works of Fault Tolerant (FT) techniques like hardware redundancy overhead, time delay, reliability, and performance are also present.
description: 8 pages, 2 figures
Il doppiaggio: interferenze linguistiche sulla soglia tra inglese e italiano
Creators: name: Sileo, Angela
Publisher: name: Università degli  Studi di Milano
Year: 2015
Subjects: televisione; doppiaggio; italiano vs. inglese; interferenza; doppiaggese

description: TV has played a fundamental role in unifying Italy and the Italian language (cfr. D’Achille 2006: 225; cfr. Maggini 2011: 131) and has recently turned into a medium for linguistic and cultural globalization and colonization. As a consequence, dubbing and “doppiaggese” (a sort of Italian equivalent of dubbese, though carrying a negative connotation) have assumed crucial importance in the evolution of the Italian language, especially if we consider that the great majority of TV products broadcast in Italy are dubbed from English. “Doppiaggese” is not only the language of bad or unskilled dubbing from English into Italian, but also a significant component of the language of fictional TV programs in Italian itself, which often unintentionally use scripts full of calques and influence the everyday spoken and written discourse of Italian speakers.

The aim of the present article is to open a window on the mutation undergone by the Italian language often due to inaccurate dubbing, the so-called “doppiaggese”. By taking into consideration the research and surveys carried out by the present writer on some cases of interference (cfr. Sileo 2010 and Sileo 2012), this study aims to convey the image of AVT translation as a window which puts two different linguo-cultural systems in contact and influences the target language system.
description: Altre Modernità, 2015: NUMERO SPECIALE Finestre: sguardi e riflessi, trasparenze e opacità
A Closure Theory for Non-linear Evolution of Cosmological Power Spectra
Creators: name: Taruya, Atsushi
name: Hiramatsu, Takashi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We apply a non-linear statistical method in turbulence to the cosmological perturbation theory and derive a closed set of evolution equations for matter power spectra. The resultant closure equations consistently recover the one-loop results of standard perturbation theory and beyond that, it is still capable of treating the non-linear evolution of matter power spectra. We find the exact integral expressions for the solutions of closure equations. These analytic expressions coincide with the renormalized one-loop results presented by Crocce & Scoccimarro (2006,2007). By constructing the non-linear propagator, we analytically evaluate the non-linear matter power spectra based on the first-order Born approximation of the integral expressions and compare it with those of the renormalized perturbation theory.
description: 22 pages, 4 figures, accepted for publication in ApJ
Spatiotemporal instability of a confined capillary jet
Creators: name: Herrada, Miguel A.
name: Ganan-Calvo, Alfonso M.
name: Guillot, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Recent experimental studies on the instability appearance of capillary jets have revealed the capabilities of linear spatiotemporal instability analysis to predict the parametrical map where steady jetting or dripping takes place. In this work, we present an extensive analytical, numerical and experimental analysis of confined capillary jets extending previous studies. We propose an extended, accurate analytic model in the limit of low Reynolds flows, and introduce a numerical scheme to predict the system response when the liquid inertia is not negligible. Theoretical predictions show a remarkable accuracy with results from the extensive experimental exploration provided.
description: Submitted to the Physical Review E (20-March-2008)
Gender differences in science achievement tests
Creators: name: Farkas, Sandra Irene
Publisher: name: University of British Columbia
Year: 2010

description: The primary intent of this study was to examine the possible role of early learning experiences in contributing to sex-related differences in selected science achievement items. The science achievement items were drawn from the 1982 BC Science Assessment on the basis of a difference in P value (percent correct) of 10% or greater between males and females. The items were administered to a group of 23 8 high school students randomly selected from three schools in the Vancouver School District. The major data base for this study was obtained through interviewing 15 students with the basic question, "Can you tell me what you were thinking when you chose your answer for question 1.. 2.. ?" The interviews were audio-taped, transcribed, and condensed into five major categories which provided the main analytical framework for the study. Among the significant findings of this study were: 1. Boys' explanations for their responses to the test items referred to considerably more informal learning experiences than girls. 2. Girls' explanations for their responses to the test items referred to considerably more formal learning experiences than boys. 3. Even though girls used more formal experiences than boys to justify their answers, their performance was still substantially lower than boys for the majority of test items. 4. Girls expressed some negative reactions to a number of test items, particularly items in the physical sciences. 5. A substantial number of girls expressed uncertainty in their responses for a number of items.None of this uncertainty appeared among the boys. The findings of this study suggest that prior experiences appear to contribute to some of the sex-related differences observed in the science achievement items. It appears from this study that informal experiences reinforce and enhance school learning and could possibly result in superior performance levels.
Closed conformal Killing-Yano tensor and Kerr-NUT-de Sitter spacetime uniqueness
Creators: name: Houri, Tsuyoshi
name: Oota, Takeshi
name: Yasui, Yukinori
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study spacetimes with a closed conformal Killing-Yano tensor. It is shown that the D-dimensional Kerr-NUT-de Sitter spacetime constructed by Chen-Lu-Pope is the only spacetime admitting a rank-2 closed conformal Killing-Yano tensor with a certain symmetry.
description: 7 pages, LaTeX
Simple Front End Electronics for Multigap Resistive Plate Chambers
Creators: name: Llope, W. J.
name: Nussbaum, T.
name: Eppley, G.
name: Velkovska, J.
name: Chujo, T.
name: Huang, S.
name: Love, B.
name: Valle, H.
name: Ruan, L.
name: Xu, Z.
name: Bonner, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A simple circuit for the presentation of the signals from Multi-gap Resistive Plate Chambers (MRPCs) to standard existing digitization electronics is described. The circuit is based on "off-the-shelf" discrete components. An optimization of the values of specific components is required to match the aspects of the MRPCs for the given application. This simple circuit is an attractive option for the initial signal processing for MRPC prototyping and bench- or beam-testing efforts, as well as for final implementations of small-area Time-of-Flight systems with existing data acquisition systems.
description: submitted to Nucl. Inst. and Methods, Section A
Dust Settling and Clumping in MRI Turbulent Outer Protoplanetary Disks
Creators: name: Xu, Ziyan
name: Bai, Xue-Ning
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planetesimal formation is a crucial yet poorly understood process in planet formation. It is widely believed that planetesimal formation is the outcome of dust clumping by the streaming instability (SI). However, recent analytical and numerical studies have shown that the SI can be damped or suppressed by external turbulence, and at least the outer regions of protoplanetary disks are likely weakly turbulent due to magneto-rotational instability (MRI). We conduct high-resolution local shearing-box simulations of hybrid particle-gas magnetohydrodynamics (MHD), incorporating ambipolar diffusion as the dominant non-ideal MHD effect, applicable to outer disk regions. We first show that dust backreaction enhances dust settling towards the midplane by reducing turbulence correlation time. Under modest level of MRI turbulence, we find that dust clumping is in fact easier than the conventional SI case, in the sense that the threshold of solid abundance for clumping is lower. The key to dust clumping includes dust backreaction and the presence of local pressure maxima, which in our work is formed by the MRI zonal flows overcoming background pressure gradient. Overall, our results support planetesimal formation in the MRI-turbulent outer protoplanetary disks, especially in ring-like substructures.
description: 21 pages, 9 figures, accepted for publication in ApJ
Finite Element Simulation of Light Propagation in Non-Periodic Mask Patterns
Creators: name: Zschiedrich, L.
name: Schmidt, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Rigorous electromagnetic field simulations are an essential part for scatterometry and mask pattern design. Today mainly periodic structures are considered in simulations. Non-periodic structures are typically modeled by large, artificially periodified computational domains. For systems with a large radius of influence this leads to very large computational domains to keep the error sufficiently small. In this paper we review recent advances in the rigorous simulation of isolated structures embedded into a surrounding media. We especially address the situation of a layered surrounding media (mask or wafer) with additional infinite inhomogeneities such as resist lines. Further we detail how to extract the far field information needed for the aerial image computation in the non-periodic setting.
description: Proceedings SPIE conference Photomask Japan (2008)
Utilization of the simulated flue gas on the cultivation of Chlorella protothecoides
Creators: name: Özel, Cem
name: Boğoçlu, Muharrem Erdem
name: Keçeciler, Ceren
name: Kaplan, Ecem
name: Yücel, Sevil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: 00-02

description: In recent years, fossil-based fuels have been used to supply the energy needs of the world. Fossil-based fuels induce accumulation of the atmospheric CO2 which causes global warming. One of CO2 source is flue gas emission from the power plant. The microalgae have been considered excellent biological materials for reduction CO2 with ability to photosynthesis. In this study, air, 10% CO2, 15% CO2 and simulated flue gas (containing 15% CO2) feed were used to observe effect CO2 concentration and flue gas on cell growth and lipid content of Chlorella protothecoides. The highest dry cell weight (1,5 g/L) and lipid content (45%) values were obtained with 15% CO2 feed while the highest growth rate (1,10), biomass productivity (0,125 g/L/day), and lipid weight (0,63 g/g) were observed in 10% CO2 feed. Cultures fed with flue gas did not inhibited C. protothecoides growth and showed similar results with those fed with 15% CO2 gas in terms of growth rate, dry cell weight, biomass productivity and lipid content. These results showed that C. protothecoides has great potential for reducing CO2 emission from flue gas.
description: 6 pages, 6 figures
The effect of Fe atoms on the adsorption of a W atom on W(100) surface
Creators: name: Houze, J.
name: Kim, Sungho
name: Park, Seong-Jin
name: German, Randall M.
name: Horstemeyer, M. F.
name: Kim, Seong-Gon
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a first-principles calculation that models the effect of iron (Fe) atoms on the adsorption of a tungsten (W) atom on W(100) surfaces. The adsorption of a W atom on a clean W(100) surface is compared with that of a W atom on a W(100) surface covered with a monolayer of Fe atoms. The total energy of the system is computed as the function of the height of the W adatom. Our result shows that the W atom first adsorbs on top of the Fe monolayer. Then the W atom can replace one of the Fe atoms through a path with a moderate energy barrier and reduce its energy further. This intermediate site makes the adsorption (and desorption) of W atoms a two-step process in the presence of Fe atoms and lowers the overall adsorption energy by nearly 2.4 eV. The Fe atoms also provide a surface for W atoms to adsorb facilitating the diffusion of W atoms. The combination of these two effects result in a much more efficient desorption and diffusion of W atoms in the presence of Fe atoms. Our result provides a fundamental mechanism that can explain the activated sintering of tungsten by Fe atoms.
description: 9 pages, 2 figures
Extratos de mamona (Ricinus communis L.) no controle de insectos-praga no cultivo de feijão (Phaseolus vulgaris L.)
Creators: name: Nzayadio Mampasi
name: and others
Publisher: name: Zenodo
Year: 2023

description: R E S U M OO feijão (Phaseolus vulgaris L) é uma cultura potencialmente de alto rendimento, ele é atacado por diversas pragas que podem reduzir essa produtividade. Nesse sentido, o principal método de controle de pragas é o uso de inseticidas sintéticos. Portanto, o uso de plantas com atividade inseticida, como a mamona (Ricinus communis L.), tem sido promovido para obtenção de outros métodos de controle com menor impacto ambiental. sendo assim, este estudo teve como objetivo avaliar a eficácia do extrato de folhas de mamona (R. communis L.) no controle de pragas de leguminosas. Para tanto, foram realizados experimentos em laboratório utilizando extrato de mamona (R. communis L.) na concentração de 10 ml. Ao utilizar extrato aquoso de mamona, observou-se que a taxa de mortalidade variou entre 9 e 29,6%, o que corresponde a 75,9%. Conclui-se que o extrato de mamona é eficaz contra a mortalidade de Bemisia tabaci, Coccinella, Euschistus spp., Schistcerca spp., e Spodoptera spp.Palavras-Chaves: Controle de insectos, plantas insecticidas, extratos vegetais