cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High-speed generation of vector beams through random spatial multiplexing
Creators: name: Hu, Xiao-Bo
name: Ma, Si-Yuan
name: Rosales-Guzmán, Carmelo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Complex vector modes have become topical of late due to their fascinating properties and the many applications they have found across a broad variety of research fields. Even though such modes can be generated in a wide variety of ways, digital holography stands out as one of the most flexible and versatile. Along this line, Digital Micromirror Devices (DMDs) have gain popularity in recent time due to their high refresh rates, which allows the generation of vector modes at kHz rates. Nonetheless, most techniques are limited either by the diversity of vector modes that can be generated or by the speed at which they can be switched. Here we propose a technique based on the concept of random encoding, which allows the generation of arbitrary vector beams at speeds limited only by the refresh rate of the DMD. Our technique will be of great relevance in research fields such as optical communications, laser material processing and optical manipulation, amongst others.
description: 9 pages, 9 figures
The effect of a single treatment with Capsaicin 8% patch in neuropathic chronic low back pain – a pilot study
Creators: name: J. Prosenz
name: S. M. Neuwersch
name: H. Kloimstein
name: R.  Likar
name: B. Gustorff
Publisher: name: F1000Research
Year: 2015

description: Background and aims: The concept of neuropathic pain (NeP) in low back pain (LBP) leads to the hypothesis, that capsaicin 8% patch reduces neuropathic LBP. The aim of this study was to determine whether capsaicin 8% is an effective treatment and to identify predictors of responsiveness.

Methods: This prospective, unblinded study included 54 LBP patients with pain >3/10 on the NRS 24h before inclusion and a Pain Detect Questionnaire (PDQ) score >13 meaning possible or present (>18) NeP. At baseline pain intensity, PDQ and quantitative sensory testing (QST) were assessed as predictors. After 1h capsaicin 8% treatment on the low back NRS was assessed over 3 months. Response was determined at 1 month (≥30% pain reduction) and predictors were compared accordingly.

Results: Twenty-one (39%) patients responded at 1 month (p < 0.0001) and even 10 of the 21 responders showed a ≥ 50% pain reduction. No pain reduction was seen in non-responders (p = 0.47). At baseline responders and non-responders did not differ in NRS (p = 0.86), PDQ score (p = 0.47), duration of pain (mean of 72.2 vs. 77.9 months) nor age. Patients’ QST findings did not differ between groups.

Conclusions: Capsaicin 8% patch is an effective treatment in about 40% of chronic patients with neuropathic LBP. However, predictors for response could not be identified.
Giant Component and Vacant Set for Random Walk on a Discrete Torus
Creators: name: Benjamini, Itai
name: Sznitman, Alain-Sol
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35; 60G50; 82C41; 05C80

description: We consider random walk on a discrete torus E of side-length N, in sufficiently high dimension d. We investigate the percolative properties of the vacant set corresponding to the collection of sites which have not been visited by the walk up to time uN^d. We show that when u is chosen small, as N tends to infinity, there is with overwhelming probability a unique connected component in the vacant set which contains segments of length const log N. Moreover, this connected component occupies a non-degenerate fraction of the total number of sites N^d of E, and any point of E lies within distance an arbitrary fractional power of N from this component.
description: 38 pages
Statistically optimal analysis of samples from multiple equilibrium states
Creators: name: Shirts, Michael R.
name: Chodera, John D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a new estimator for computing free energy differences and thermodynamic expectations as well as their uncertainties from samples obtained from multiple equilibrium states via either simulation or experiment. The estimator, which we term the multistate Bennett acceptance ratio (MBAR) estimator because it reduces to the Bennett acceptance ratio when only two states are considered, has significant advantages over multiple histogram reweighting methods for combining data from multiple states. It does not require the sampled energy range to be discretized to produce histograms, eliminating bias due to energy binning and significantly reducing the time complexity of computing a solution to the estimating equations in many cases. Additionally, an estimate of the statistical uncertainty is provided for all estimated quantities. In the large sample limit, MBAR is unbiased and has the lowest variance of any known estimator for making use of equilibrium data collected from multiple states. We illustrate this method by producing a highly precise estimate of the potential of mean force for a DNA hairpin system, combining data from multiple optical tweezer measurements under constant force bias.
description: 13 pages (including appendices), 1 figure, LaTeX
Scales of relative importance and damage schedules : a non-monetary valuation approach for natural resource management
Creators: name: Chuenpagdee, Ratana
Publisher: name: University of British Columbia
Year: 2009

description: The damage schedule framework was applied as an analytical protocol to assess communities' valuation of environmental resources. The study was an empirical test of the feasibility of developing damage schedules using two coastal areas of Thailand, Ban Don Bay and Phangnga Bay. The objectives of this research included (a) investigating the ability of people to provide judgments about the relative importance of resources, (b) examining how this information could be used to derive scales of relative importance, and (c) developing the damage schedules based on these importance scales. A questionnaire containing series of paired comparison questions was used as a survey instrument. About 200 people were surveyed for each study area. These included 'formal experts', such as researchers, policy makers and administrators, and 'layexperts', such as resource users, other stakeholders, and people living in the study areas. The first part of the questionnaire presented pairs of resource losses (e.g. damage to coral reefs, loss of mangrove forests), while loss-causing activities (e.g. an oil spill, shrimp farming) were paired in the second part of the questionnaire. For a series of these pairs, respondents were asked to indicate which member within each pair was more important. The results showed a significant agreement in the rankings of importance of resource losses and activities provided by all respondents in each study area. Agreement in the rankings was found between formal experts and layexperts and among layexperts of different occupations. Intransitive responses occurred but did not have a significant effect on the resulting scale values and rankings. Comparison between the damage schedules of the two areas supported the underlying assumption that people could make judgments on the relative importance of different losses and could provide meaningful rankings that reflect community values. The damage schedules can be adjusted over time as losses or activities of different magnitude occur, by interpolating or extrapolating from the initial scale values. Damage schedules, apart from providing predictability and enforceability in the damage payments, can also be developed quickly and at lower cost than current valuation methods.
Literature profiling workshop: steps 1-3 (S File 2)
Creators: name: Chaussabel, Damien
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: A spreadsheet in the MS Excel format that provides an illustrative use case and can serve as a template for the completion of Steps 1-3 of a literature profiling workshop (described in a publication this resource is linked to).
Calibration of Moving Puncture Simulations
Creators: name: Bruegmann, Bernd
name: Gonzalez, Jose A.
name: Hannam, Mark
name: Husa, Sascha
name: Sperhake, Ulrich
name: Tichy, Wolfgang
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present single and binary black hole simulations that follow the moving puncture paradigm of simulating black-hole spacetimes without excision, and use moving boxes mesh refinement. Focussing on binary black hole configurations where the simulations cover roughly two orbits, we address five major issues determining the quality of our results: numerical discretization error, finite extraction radius of the radiation signal, physical appropriateness of initial data, gauge choice and computational performance. We also compare results we have obtained with the BAM code described here with the independent LEAN code.
description: 21 pages, 21 figures, three tables
Simulation of 10830 Å absorption with a 3D hydrodynamic model reveals the solar He abundance in upper atmosphere of WASP-107b
Creators: name: Khodachenko, M. L.
name: Shaikhislamov, I. F.
name: Fossati, L.
name: Lammer, H.
name: Rumenskikh, M. S.
name: Berezutsky, A. G.
name: Miroshnichenko, I. B.
name: Efimof, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Transmission spectroscopy of WASP-107b revealed 7-8% absorption at the position of metastable HeI triplet at 10830 Å in Doppler velocity range of [-20; 10] km/s, which is stronger than that measured in other exoplanets. With a dedicated 3D self-consistent hydrodynamic multi-fluid model we calculated the expanding upper atmosphere of WASP-107b and reproduced within the observations accuracy the measured HeI absorption profiles, constraining the stellar XUV flux to (6-10) erg cm-2 s-1 at 1 a.u., and the upper atmosphere helium abundance He/H to 0.075-0.15. The radiation pressure acting on the metastable HeI atoms was shown to be an important factor affecting the shape of the absorption profiles. Its effect is counterbalanced by the processes of collisional depopulation of the HeI metastable state. Altogether, the observed HeI absorption in WASP-107b can be interpreted with the expected reasonable parameters of the stellar-planetary system and appropriate account of the electron and atom impact processes.
description: to be published
Effect of the surface-stimulated mode on the kinetics of homogeneous crystal nucleation in droplets
Creators: name: Djikaev, Yuri S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A kinetic theory of homogeneous crystal nucleation in unary droplets is presented taking into account that a crystal nucleus can form not only in the volume-based mode (with all its facets within the droplet) but also in the surface-stimulated one (with one of its facets at the droplet surface). The previously developed thermodynamics of surface-stimulated crystal nucleation rigorously showed that if at least one of the facets of the crystal is only partially wettable by its melt, then it is thermodynamically more favorable for the nucleus to form with that facet at the droplet surface rather than within the droplet. So far, however, the kinetic aspects of this phenomenon had not been studied at all. The theory proposed in the present paper advocates that even in the surface-stimulated mode crystal nuclei initially emerge (as sub-critical clusters) homogeneously in the sub-surface layer, not "pseudo-heterogeneously" at the surface. A homogeneously emerged sub-critical crystal can become a surface-stimulated nucleus due to density and structure fluctuations. This effect contributes to the total rate of crystal nucleation (as the volume-based mode does). An explicit expression for the total per-particle rate of crystal nucleation is derived. Numerical evaluations for water droplets suggest that the surface-stimulated mode can significantly enhance the per-particle rate of crystal nucleation in droplets as large as 10 microns in radius. Possible experimental verification of the proposed theory is discussed.
description: 33 pages, 3 figures
Memorias colectivas de las Bibliotecas populares y comunitarias de la zona Noroccidental de Medellín - Colombia: una huella para el futuro
Creators: name: Información, conocimiento y sociedad, Grupo de investigación
name: Quintero Castro, Nathalia
name: Bornacelly Castro, Jaime Alberto
Publisher: name: figshare
Year: 2021
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: RESUMEN: En este texto se presentan los resultados del proyecto de investigación Barrio y Biblioteca. Memorias colectivas en la constitución barrial de la Zona dos del Noroccidente de Medellín, las características de su abordaje metodológico, las voces de los bibliotecarios, de algunos líderes y habitantes de los barrios, investigadores y finalmente algunas reflexiones. Se concluye, entre otros aspectos que: la configuración barrial de la zona Noroccidental de Medellín da cuenta de un proceso histórico-comunitario diseñado por sus habitantes con fuertes convicciones colectivas de resistencia; las bibliotecas populares y comunitarias en dichos barrios fueron lugares de refugio y protección de un número importante de niños y jóvenes en la ciudad, en un contexto de violencias, narcotráfico, adicciones y ‘no futuro’; las bibliotecas participaron del florecimiento y formación de líderes barriales y bibliotecarios que se empeñaron en su deseo de hacer de los libros, la lectura y las bibliotecas herramientas y medios para la interacción social, el encuentro con otros, el reconocimiento de la humanidad y la solidaridad, imprimiendo en sus habitantes el deseo de una ciudad distinta, el anhelo de vivir en sus barrios sin miedos, violencias y exclusiones.
 ABSTRACT: In this text it is presented the results of the research project Neighborhood and Library. Collective memories in the constitution of Zone Two northwestern of Medellín [Barrio y Biblioteca. Memorias colectivas en la constitución barrial de la Zona dos del Noroccidente de Medellín], the characteristics of its methodological approach, the voices of librarians and some leaders and inhabitants of the neighborhoods, finally some reflections. It is concluded, among other aspects that, the neighborhoods configuration of the northwestern zone of Medellin describes of historical-community process designed by its inhabitants with strong collective convictions; popular and community libraries, in these neighborhoods were containers or protectors of significant numbers of children and young people in the city, in a context of violence, drug trafficking, addictions, and “no future”; the libraries participated in the formation of leaders and librarians who were committed in to use the books, reading, libraries and, in general, the registered memory, tools and means for social interaction, the recognition of humanity and solidarity, fixing on their inhabitant’s memory the wish of a different city, the desire to live in its neighborhoods without fear, violence and exclusion.
Grammatical elicitation: Word order, compositionality, phonological phrases
Creators: name: Ovelar, Irma Easty
name: Dabkowski, Maksymilian
name: Jarvis, Rebecca
name: Michael, Lev
name: Russell, Katherine
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Word order of -gua'u, -se, -vy, -guy, -mi, -py, -na, -ne, -ke, etc.; compositionality of meaning with -gua'u and -se, and parsing into phonological phrases.
Study of Cluster Structures in Nuclei through the Ratio Method. A Tribute to Mahir Hussein
Creators: name: Capel, Pierre
name: Johnson, Ronald C.
name: Nunes, Filomena M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: For one-neutron halo nuclei, the cross section for elastic scattering and breakup at intermediate energy exhibit similar angular dependences. The Recoil Excitation and Breakup (REB) model of reactions elegantly explains this feature. It also leads to the idea of a new reaction observable to study the structure of loosely-bound nuclear systems: the Ratio. This observable consists of the ratio of angular distributions for different reaction channels, viz. elastic scattering and breakup, which cancels most of the dependence on the reaction mechanism; in particular it is insensitive to the choice of optical potentials that simulate the projectile-target interaction. This new observable is very sensitive to the structure of the projectile. In this article, we review the Ratio Method and its extension to low beam energies and proton-halo nuclei.
description: Submitted to the European Physical Journal A as a contribution to the Special Issue on "Cluster structure and dynamics of nuclei" dedicated to the memory of Mahir S. Hussein (1944-2019). 12 pages, 7 figures
Nonequilibrium charge-Kondo transport through negative-U molecules
Creators: name: Koch, Jens
name: Sela, Eran
name: Oreg, Yuval
name: von Oppen, Felix
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Low-temperature transport through molecules with effectively negative charging energy U exhibits a charge-Kondo effect. We explore this regime analytically by establishing an exact mapping between the negative-U and the positive-U Anderson models, which is suitable for the description of nonequilibrium transport. We employ this mapping to demonstrate the intimate relation between nonequilibrium tranport in the spin-Kondo and charge-Kondo regimes, and derive analytical expressions for the nonlinear current-voltage chracteristics as well as the shot noise in the latter regime. Applying the mapping in the opposite direction, we elucidate the finding of super-Poissonian noise in the positive-U Anderson model at high temperatures, by relating the correlations between spin flips to pair-tunneling processes at negative U.
description: 11 pages, 5 figures
Literature profiling workshop: steps 1-3
Creators: name: Chaussabel, Damien
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: A spreadsheet in the MS Excel format that provides an illustrative use case and can serve as a template for the completion of Steps 1-3 of a literature profiling workshop (described in a publication this resource is linked to).
Super-zeta functions and regularized determinants associated to cofinite Fuchsian groups with finite-dimensional unitary representations
Creators: name: Friedman, Joshua S.
name: Jorgenson, Jay
name: Smajlovic, Lejla
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 11M36, 11F72

description: Let $M$ be a finite volume, non-compact hyperbolic Riemann surface, possibly with elliptic fixed points, and let $χ$ denote a finite dimensional unitary representation of the fundamental group of $M$. Let $Δ$ denote the hyperbolic Laplacian which acts on smooth sections of the flat bundle over $M$ associated to $χ$. From the spectral theory of $Δ$, there are three distinct sequences of numbers: The first coming from the eigenvalues of $L^{2}$ eigenfunctions, the second coming from resonances associated to the continuous spectrum, and the third being the set of negative integers. Using these sequences of spectral data, we employ the super-zeta approach to regularization and introduce two super-zeta functions, $\Z_-(s,z)$ and $\Z_+(s,z)$ that encode the spectrum of $Δ$ in such a way that they can be used to define the regularized determinant of $Δ-z(1-z)I$. The resulting formula for the regularized determinant of $Δ-z(1-z)I$ in terms of the Selberg zeta function, see Theorem 5.3, encodes the symmetry $z\leftrightarrow 1-z$, which could not be seen in previous works, due to a different definition of the regularized determinant.
description: submitted to Letters in Mathematical Physics. arXiv admin note: text overlap with arXiv:1607.08053
Influence of Social Networking Sites among Rural Area UG Students with Special Reference to CSI Jeyaraj Annapackiam College, Nallur, Tirunelveli: A Study
Creators: name: Thangiah, Raja
name: I, Ravi Kumar Kennedy
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 461006
subject: Library studies

description: Social Networking Sites play very essential role in the day to day-life for sharing information. Under graduate students of rural arts and science colleges are using the social networking sites casually in home, laptop and mobile. This study focuses on the availability of using social networking sites among the rural area under graduate students. This study concludes that 43.36 percentage of the students are using the Facebook, 66.43 percentage of the students using the SNS through mobile phone and 61.54 percentage of the students spend 30 minutes per day for using SNS. The study proves that 60.13 percentage students are using SNS as an effective tool for e-learning.
Resonance and antiresonance in Raman scattering in GaSe and InSe crystals
Creators: name: Osiekowicz, M.
name: Staszczuk, D.
name: Olkowska-Pucko, K.
name: Kipczak, Ł.
name: Grzeszczyk, M.
name: Zinkiewicz, M.
name: Nogajewski, K.
name: Kudrynskyi, Z. R.
name: Kovalyuk, Z. D.
name: Patané, A.
name: Babiński, A.
name: Molas, M. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The temperature effect on the Raman scattering efficiency is investigated in $\varepsilon$-GaSe and $γ$-InSe crystals. We found that varying the temperature over a broad range from 5 K to 350 K permits to achieve both the resonant conditions and the antiresonance behaviour in Raman scattering of the studied materials. The resonant conditions of Raman scattering are observed at about 270 K under the 1.96 eV excitation for GaSe due to the energy proximity of the optical band gap. In the case of InSe, the resonant Raman spectra are apparent at about 50 K and 270 K under correspondingly the 2.41 eV and 2.54 eV excitations as a result of the energy proximity of the \mbox{so-called} B transition. Interestingly, the observed resonances for both materials are followed by an antiresonance behaviour noticeable at higher temperatures than the detected resonances. The significant variations of phonon-modes intensities can be explained in terms of electron-phonon coupling and quantum interference of contributions from different points of the Brillouin zone
description: 7 pages, 6 figures
Relation Between Chiral Susceptibility and Solutions of Gap Equation in Nambu--Jona-Lasinio Model
Creators: name: Zhao, Yue
name: Chang, Lei
name: Yuan, Wei
name: Liu, Yu-xin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the solutions of the gap equation, the thermodynamic potential and the chiral susceptibility in and beyond the chiral limit at finite chemical potential in the Nambu--Jona-Lasinio (NJL) model. We give an explicit relation between the chiral susceptibility and the thermodynamic potential in the NJL model. We find that the chiral susceptibility is a quantity being able to represent the furcation of the solutions of the gap equation and the concavo-convexity of the thermodynamic potential in NJL model. It indicates that the chiral susceptibility can identify the stable state and the possibility of the chiral phase transition in NJL model.
description: 21 pages, 6 figures, misprints are corrected
Biblioteca escolar y calidad educativa: una revisión de la literatura
Creators: name: Información, conocimiento y sociedad, Grupo de investigación
name: Duque Cardona, Natalia
name: Rodríguez Gómez, Hilda Mar
name: Muñoz, Wilson Castaño
Publisher: name: figshare
Year: 2021
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: RESUMEN: Este artículo tiene como propósito aproximarse al universo documental, en el ámbito producción científica, que aborda el tema de la biblioteca escolar y la calidad educativa. El ejercicio se enmarca en la investigación La incidencia de la biblioteca escolar en la calidad educativa en Colombia: un estudio a través de los resultados en pruebas censales. Inicialmente se introduce y contextualiza la revisión de literatura en el marco del proyecto de investigación. A continuación, se presente la metodología usada para llevar a cabo la revisión, para dar paso a la exposición de los resultados en dos vías: el análisis de la producción científica y el análisis de las categorías conceptuales fundamentales para el ejercicio investigativo. Seguidamente se desarrolla un breve apartado de discusión que vincula el análisis de los resultados y se cierra con las conclusiones, donde se proponen tendencias, hallazgos y vacíos del conocimiento en el campo de la biblioteca escolar y calidad educativa, específicamente asociada con rendimiento académico en pruebas censales. ABSTRACT: The purpose of this article is to know the documentary universe, in the field of scientific production, which deals with the subject of the school library and educational quality. The exercise is part of the research: The impact of the school library on educational quality in Colombia: a study through the results in census tests. Initially, the literature review is introduced and contextualized within the framework of the research project. Then, we present the methodology used to carry out the review, to give way to the presentation of the results in two ways: the analysis of scientific production and the analysis of the fundamental conceptual categories for the research exercise. Then a brief discussion section is developed that links the analysis of the results and closes with the conclusions, where tendencies, findings and knowledge gaps are proposed in the field of the school library and educational quality.
Early Elementary Years and the Social World Around Them
Creators: name: Dyer, Kelli
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Elementary school
peers
children
friendships

description: In chapter 3 of Children’s Friendships: The Beginning of Intimacy, written by Judy Dunn the social world children during the elementary school age are living in is the main discussion. The early school years and the beginning of Kindergarten is a huge time of change for children. There becomes a sense of freedom regarding who and how they can socialize with. They become fixed on the importance and novelty that a school social network environment brings. The importance of social skills emerges and children develop into social beings that are capable of many things. In this chapter, Dunn discusses the beginning and importance of child gossip, compromise, morals, and the growth of togetherness or theory of mind.
Effects of latitude-dependent gravity wave source variations on the middle and upper atmosphere
Creators: name: Yiğit, Erdal
name: Medvedev, Alexander S.
name: Ern, Manfred
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Atmospheric gravity waves (GWs) are generated in the lower atmosphere by various weather phenomena. They propagate upward, carry energy and momentum to higher altitudes, and appreciably influence the general circulation upon depositing them in the middle and upper atmosphere. We use a three-dimensional first-principle general circulation model (GCM) with an implemented nonlinear whole atmosphere GW parameterization to study the global climatology of wave activity and produced effects at altitudes up to the upper thermosphere. The numerical experiments were guided by the GW momentum fluxes and temperature variances as measured in 2010 by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument onboard NASA's TIMED (Thermosphere Ionosphere Mesosphere Energetics Dynamics) satellite. This includes the latitudinal dependence and magnitude of GW activity in the lower stratosphere for the boreal summer season. The modeling results were compared to the SABER temperature and total absolute momentum flux, and Upper Atmosphere Research Satellite (UARS) data in the mesosphere and lower thermosphere. Simulations suggest that, in order to reproduce the observed circulation and wave activity in the middle atmosphere, smaller than the measured GW fluxes have to be used at the source level in the lower atmosphere. This is because observations contain a broader spectrum of GWs, while parameterizations capture only a portion relevant to the middle and upper atmosphere dynamics. Accounting for the latitudinal variations of the source appreciably improves simulations.
description: Submitted to Frontiers in Astronomy and Space Sciences. Research Topic: "Coupling Processes in Terrestrial and Planetary Atmospheres"
title: FLAME tutorial examples : cellular automata - the game of life
Creators: name: Chin, LS
name: Greenough, C
name: Worth, DJ
Publisher: name: Science and Technology Facilities Council
Year: 2012
Subjects: game of life
FLAME
agent-based modelling
tutorial example
cellular automata

description: FLAME - the Flexible Large-scale Agent Modelling Environment - is a framework for developing agent-based models. FLAME has been developed in a collaboration between the Computer Science Department of the University of Sheffield and the Software Engineering Group of the STFC Rutherford Appleton Laboratory. This report documents the FLAME implementation of the Cellular Automata pro- gram known as the the Game of Life. The Game of Life was invented by John Horton Conway and it has been used extensively in demonstrating and testing complex sys tems software.
The Non-Null and Force-Free Electromagnetic Field
Creators: name: Menon, Govind
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we present a covariant formalism that connects solutions to force-free electrodynamics in the non-null case and foliations of spacetime. In doing so, we are also able to derive an expression of the general non-null current density vector. Just as in the null case, solutions in the non-null case can give rise to a dual solution, however, as is shown below, this can happen only when the solution describes a vacuum field. All theorems are illustrated with previously known solutions.
description: I have added some global results in this version
Image quality enhancement in wireless capsule endoscopy with adaptive fraction gamma transformation and unsharp masking filter
Creators: name: Ezatian, Rezvan
name: Khaledyan, Donya
name: Jafari, Kian
name: Heidari, Morteza
name: Khuzani, Abolfazl Zargari
name: Mashhadi, Najmeh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Wireless Capsule Endoscopy (WCE) presented in 2001 as one of the key approaches to observe the entire gastrointestinal (GI) tract, generally the small bowels. It has been used to detect diseases in the gastrointestinal tract. Endoscopic image analysis is still a required field with many open problems. The quality of many images it produced is rather unacceptable due to the nature of this imaging system, which causes some issues to prognosticate by physicians and computer-aided diagnosis. In this paper, a novel technique is proposed to improve the quality of images captured by the WCE. More specifically, it enhanced the brightness, contrast, and preserve the color information while reducing its computational complexity. Furthermore, the experimental results of PSNR and SSIM confirm that the error rate in this method is near to the ground and negligible. Moreover, the proposed method improves intensity restricted average local entropy (IRMLE) by 22%, color enhancement factor (CEF) by 10%, and can keep the lightness of image effectively. The performances of our method have better visual quality and objective assessments in compare to the state-of-art methods.
description: 7 pages, 7 figures
Voila mon Billet - pour mon Logis
Creators: name: Neustück, Maximilian
Publisher: name: [s.n.]
Year: 1790
Subjects: Soldat

description: Ein weiteres, nicht koloriertes Exemplar befindet sich unter der Signatur: Geschichte 1793 Basel I, 4 ebenfalls im Bestand der Graphischen Sammlung
description: Max Neustück inv. et fecit
Interactions between growth, sex, reproduction, and activity levels in control and fast-growing strains of Nile tilapia (Oreochromis niloticus)
Creators: name: Bozynski, Chantelle Carole
Publisher: name: University of British Columbia
Year: 2009

description: Cultured fish play an important role i n meeting increasing demands of human consumption around the world. To meet consumer demand for larger-sized fish, fish culturist seek strains that possess a high growth rate and reach harvestable size before attaining sexual maturation. Given the importance for farmers of understanding growth phenomena and controlling sexual maturation in fish stocks, this thesis examined the relationship between growth, behavioural activity, and sexual maturation i n control strains of Nile tilapia, Oreochromis niloticus, and i n strains resulting from a project devoted to the Genetic Improvement of Farmed Tilapias (GIFT). Behavioural activity of fish groups was videorecorded each month of the three month study period. Under laboratory conditions, the fast-growing GIFT fish performed less locomotory and agonistic activity than the slow-growing control fish. Mirror image stimulation tests performed on individual males supported the finding that controls are more aggressive than GIFT fish. In the comparison of females and males, the fast-growing male GIFT performed less locomotory, but more agonistic behaviour than the slow-growing female GIFT. In the controls, growth rates of males and females were relatively similar even though, the male controls performed more locomotory and agonistic behaviour than the female control fish. In all, low growth was associated with a high activity level; however, a few experimental observations appear to deviate from this relationship and are discussed. Nesting behaviour, which is often the first indication of sexual maturity, was observed only i n males. Male controls performed more nesting behaviour than male GIFT fish. Also, significantly more nests were built by the control than GIFT fish. This suggest, at least i n males, that the slow-growing control fish became sexually mature sooner, and at a smaller size than the fast-growing GIFT fish. Furthermore, male GIFT fish required more time to complete their nest(s), and built fewer nests than male control fish.
The dynamical state of RX J1347.5-1145 from a combined strong lensing and X-ray analysis
Creators: name: Miranda, M.
name: Sereno, M.
name: De Filippis, E.
name: Paolillo, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform a combined X-ray and strong lensing analysis of RX J1347.5-1145, one of the most luminous galaxy clusters at X-ray wavelengths. We show that evidence from strong lensing alone, based on published VLT and new HST data, strongly argues in favor of a complex structure. The analysis takes into account arc positions, shapes and orientations and is done thoroughly in the image plane. The cluster inner regions are well fitted by a bimodal mass distribution, with a total projected mass of $M_{tot} = (9.9 \pm 0.3)\times 10^{14} M_\odot/h$ within a radius of $360 \mathrm{kpc}/h$ ($1.5'$). Such a complex structure could be a signature of a recent major merger as further supported by X-ray data. A temperature map of the cluster, based on deep Chandra observations, reveals a hot front located between the first main component and an X-ray emitting South Eastern sub-clump. The map also unveils a filament of cold gas in the innermost regions of the cluster, most probably a cooling wake caused by the motion of the cD inside the cool core region. A merger scenario in the plane of the sky between two dark matter sub-clumps is consistent with both our lensing and X-ray analyses, and can explain previous discrepancies with mass estimates based on the virial theorem.
description: 9 pages, 7 figures, accepted for publication in MNRAS. High resolution version at http://www-theorie.physik.unizh.ch/~solar/papers/RXJ1347.pdf
Approximation Limitations of Pure Dynamic Programming
Creators: name: Jukna, Stasys
name: Seiwert, Hannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We prove the first, even super-polynomial, lower bounds on the size of tropical (min,+) and (max,+) circuits approximating given optimization problems. Many classical dynamic programming (DP) algorithms for optimization problems are pure in that they only use the basic min, max, + operations in their recursion equations. Tropical circuits constitute a rigorous mathematical model for this class of algorithms. An algorithmic consequence of our lower bounds for tropical circuits is that the approximation powers of pure DP algorithms and greedy algorithms are incomparable. That pure DP algorithms can hardly beat greedy in approximation, is long known. New in this consequence is that also the converse holds.
Classical central extension for asymptotic symmetries at null infinity in three spacetime dimensions
Creators: name: Barnich, Glenn
name: Compere, Geoffrey
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The symmetry algebra of asymptotically flat spacetimes at null infinity in three dimensions is the semi-direct sum of the infinitesimal diffeomorphisms on the circle with an abelian ideal of supertranslations. The associated charge algebra is shown to admit a non trivial classical central extension of Virasoro type closely related to that of the anti-de Sitter case.
description: 4 sign mistakes due to a change of conventions are corrected in section 2, none of the conclusions are affected, takes precedence over published version, including corrigendum
A devil in the detail: parameter cross-talk from the solar cycle and estimation of solar p-mode frequencies
Creators: name: Chaplin, W. J.
name: Jimenez-Reyes, S. J.
name: Eff-Darwich, A.
name: Elsworth, Y.
name: New, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Frequencies, powers and damping rates of the solar p modes are all observed to vary over the 11-yr solar activity cycle. Here, we show that simultaneous variations of these parameters give rise to a subtle cross-talk effect, which we call the ``devil in the detail'', that biases p-mode frequencies estimated from analysis of long power frequency spectra. We also show that the resonant peaks observed in the power frequency spectra show small distortions due to the effect. Most of our paper is devoted to a study of the effect for Sun-as-a-star observations of the low-l p modes. We show that for these data the significance of the effect is marginal. We also touch briefly on the likely l dependence of the effect, and discuss the implications of these results for solar structure inversions.
description: 9 pages; accepted for publication in MNRAS
Connecting gravity field, moment of inertia, and core properties in Jupiter through empirical structure models
Creators: name: Neuenschwander, Benno A.
name: Helled, Ravit
name: Movshovitz, Naor
name: Fortney, Jonathan J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Constraining Jupiter's internal structure is crucial for understanding its formation and evolution history. Recent interior models of Jupiter that fit Juno's measured gravitational field suggest an inhomogeneous interior and potentially the existence of a diluted core. These models, however, strongly depend on the model assumptions and the equations of state used. A complementary modelling approach is to use empirical structure models. These can later be used to reveal new insights on the planetary interior and be compared to standard models. Here we present empirical structure models of Jupiter where the density profile is constructed by piecewise-polytropic equations. With these models we investigate the relation between the normalized moment of inertia (MoI) and the gravitational moments $J_2$ and $J_4$. Given that only the first few gravitational moments of Jupiter are measured with high precision, we show that an accurate and independent measurement of the MoI value could be used to further constrain Jupiter's interior. An independent measurement of the MoI with an accuracy better than $\sim 0.1\%$ could constrain Jupiter's core region and density discontinuities in its envelope. We find that models with a density discontinuity at $\sim$ 1 Mbar, as would produce a presumed hydrogen-helium separation, correspond to a fuzzy core in Jupiter. We next test the appropriateness of using polytropes, by comparing them with empirical models based on polynomials. We conclude that both representations result in similar density profiles and ranges of values for quantities like core mass and MoI.
description: 16 pages, 12 figures, 5 tables, accepted for publication in ApJ
Adolescent Brain Development and Peer Relationships
Creators: name: Ho, Thao
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: adolescents
peer relationships
high school
development
cognitive
risky behaviors

description: Adolescence is a critical period of development in brain growth and neural systems that influence physical, cognitive, social-emotional development. As adolescents mature cognitively and biologically, the environment and education culture changes, as they transition from a small, single classroom in the early preschool year to endless long hour classes in high school. Friendships and peer preferences also change throughout these years. It is also a time where there are high opinions and demands from peers and family, which often times can be overwhelming to adolescents. Understanding the biological and psychological changes in different parts of the brain can help determine how it affects adolescents transition to high school and peer relationships.
Diseño de un protocolo para la obtención de modelos digitales de superficie geométricamente consistentes y con precisión de elevación para zonas urbanas y periurbanas.
Creators: name: Esteban-Muñoz, Álvaro
name: Aroca-Jiménez, Estefanía
name: Bodoque, José María
Publisher: name: Zenodo
Year: 2022
Subjects: Modelo Digital de Superficies
MDT
Urbano
Alta resolución
Geoestadística

description: Documento técnico donde se describe pormenorizadamente los pasos a seguir para generar un Modelo Digital de Superficies (MDS) geométricamente consistente utilizando ArcGIS e información publica tal como datos Lidar y capas proporcionadas por organismos públicos. Se complementa con la descripción del proceso para la validación MDS mediante aplicación de geoestadística y la utilización de puntos de cotas obtenidos del catastro. Todo el documento está enfocado mayormente a zonas urbanas y periurbanas, aunque se puede aplicar en zonas no urbanas. Los elementos de la superficie tratados en detalle son: edificios, calles, muros, motas y puentes.
Grammatical elicitation: Verbal nominals with possession, statives, proper names
Creators: name: Ovelar, Irma Easty
name: Jarvis, Rebecca
name: Dabkowski, Maksymilian
name: Michael, Lev
name: Russell, Katherine
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Possession especially using nouns with relational prefixes. Proper names with determiners.
Personal archives and transitional justice in Colombia: the Fonds of Fabiola Lalinde and Mario Agudelo
Creators: name: Información, conocimiento y sociedad, Grupo de investigación
name: Giraldo, Marta Lucía
name: Tobón, Daniel Jerónimo
Publisher: name: figshare
Year: 2021
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: ABSTRACT: This article studies two personal human rights archives and their interactions with transitional justice mechanisms in Colombia. The ‘Fabiola Lalinde fonds’ contains documentation produced duringthe search of truth and justice for the forced disappearance of her son Luis Fernando Lalinde. The ‘Mario Agudelo Fonds’ gathers documentation related to his militancy in the Popular Liberation Army (EPL), his later political activism and his participation in peace processes. The relationship between these archives and transitional justice can be described as a virtuous circle. Both archives preceded and prepared the implementation of transitional justice mechanisms in Colombia and have provided evidence for trials and reparation processes. In turn, transitional institutions have enhanced the public recognition of these archives as paradigmatic examples of memory initiatives of the civil society. The article shows that these types of archives can contribute to the creation of a record of human rights violations, help consolidate collective memory and have symbolic power as testimony of lives dedicated to the defence of human rights and the search for a more just country. They belong to the canon of human rights archives and, in the current Colombian context, face political and material risks that must be addressed.
ДИАГНОСТИКА И ОПТИМАЛЬНЫЕ МЕТОДЫ КОРРЕКЦИИ СГИБАТЕЛЬНОЙ КОНТРАКТУРЫ КОЛЕННОГО СУСТАВА У ДЕТЕЙ С ЦЕРЕБРАЛЬНЫМИ ПАРАЛИЧАМИ
Creators: name: Хамроев, Ф.Ш.
name: Эшматов, М.М.
name: Нурматова, Ш.О.
name: Эшматова, Д.Г
Publisher: name: Zenodo
Year: 2024

description: Проанализированы результаты диагностики и лечения 63 пациентов со сгибательной контрактурой коленного сустава при церебральных параличах. Определены три варианта степени тяжести патологии: легкая степень - до 15º, умеренная - от 15º до 30º и тяжелая - свыше 30. Деформация устранена хирургическим методом у 46 детей, консервативным – у 17. Результаты лечения прослежены в период до 5 лет. Неудовлетворительные результаты не наблюдены. Рекомендовано выявление основного-первичного фактора сгибательной контрактуры коленного сустава, определяющего тактику устранения деформации.