cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effect of Client Appraisal on the Efficiency of Micro Finance Bank
Creators: name: Enoch, Esther Yusuf
name: Arabo, Usman Abubakar
name: Digil, Abubakar Mahmud
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: One of the major problems confronting financial institutions most especially microfinance institutions is the increasing incidence of loan defaults and consequence loan losses which manifested in their financial performance with huge uncollectible loans and advances. This study assessed the effects of credit management on financial performance on microfinance institutions in Adamawa State, Nigeria. Specifically, we examine the effect of client appraisal on the efficiency of microfinance banks in Adamawa State. The methodology employed in this study is the survey method in which both primary and secondary sources were used in the collection of data. A multi-stage sampling method was adopted in selecting a sample of 21 respondents from a total population of 52 credit officers. Questionnaires were used in the due collection of data from the respondents. Descriptive statistics (simple percentage) and inferential statistics (regression analysis) were used to analyze the data collected and in testing the hypotheses. The study showed that client appraisal has a positive effect on efficiency and productivity.
description: 13 pages journal. arXiv admin note: text overlap with arXiv:2105.10991
QuakeMigrate: a Modular, Open-Source Python Package for Automatic Earthquake Detection and Location
Creators: name: Winder, Tom
name: Bacon, Conor
name: Smith, Jonathan
name: Hudson, Thomas
name: Greenfield, Tim
name: White, Robert
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: earthquake detection
earthquake location
seismology
volcano seismology
icequakes
open source software

description: Detecting and locating microearthquakes from continuous waveform records is the fundamental step in microseismic processing. Dense local networks and arrays have introduced the possibility to detect large numbers of far weaker events, but when viewed on seismic records from individual stations their waveforms are often obscured by noise. Furthermore, areas of interest for microseismic monitoring often feature extremely high event rates, highlighting the limitations of traditional techniques based on phase picking and association. In order to maximise the new insights gained, we require fully automated techniques which can exploit modern recordings to produce highly complete earthquake catalogues containing few artefacts. QuakeMigrate is a new modular, open-source Python package providing a framework to efficiently, automatically and robustly detect and locate microseismicity. The user inputs continuous seismic data, a velocity model or pre-calculated look-up table and list of station locations. Instead of reducing the raw waveforms to discrete time picks, they are transformed (by amplitude, frequency and/or polarisation analysis) to continuous functions representing the probability of a particular phase arrival through time. These ‘onset functions’ from stations across the network are then migrated according to a travel-time look-up table and stacked to perform a grid-search for coherent sources of energy in the subsurface. This enables detection of earthquakes at close to or below the signal-to-noise ratio at individual stations, and implicitly associates phase arrivals even at very small inter-event times. We demonstrate the flexibility and power of this approach with examples of basal icequakes detected at the Rutford Ice Stream, Antarctica, dike- and caldera-collapse induced seismicity at Bárðarbunga central volcano, Iceland, and the aftershock sequence from a M5 earthquake at Mt. Kinabalu, northern Borneo. The modular nature of the workflow and wide range of automatic plotting options makes parameter choice straightforward, and robust event location uncertainty statistics facilitate filtering to produce a robust catalogue. QuakeMigrate also outputs phase picks and local magnitude estimates, with an architecture designed to promote further community-driven extension in future.
Ellipsoidal universe in the brane world
Creators: name: Ge, Xian-Hui
name: Kim, Sang Pyo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a scenario of the ellipsoidal universe in the brane world cosmology with a cosmological constant in the bulk . From the five-dimensional Einstein equations we derive the evolution equations for the eccentricity and the scale factor of the universe, which are coupled to each other. It is found that if the anisotropy of our universe is originated from a uniform magnetic field inside the brane, the eccentricity decays faster in the bulk in comparison with a four-dimensional ellipsoidal universe. We also investigate the ellipsoidal universe in the brane-induced gravity and find the evolution equation for the eccentricity which has a contribution determined by the four- and five-dimensional Newton's constants. The role of the eccentricity is discussed in explaining the quadrupole problem of the cosmic microwave background.
description: 15 pages, 1 figure, Version 3, references added, contents expanded
The Effect of Inefficient Accretion on Planetary Differentiation
Creators: name: Cambioni, Saverio
name: Jacobson, Seth A.
name: Emsenhuber, Alexandre
name: Asphaug, Erik
name: Rubie, David C.
name: Gabriel, Travis S. J.
name: Schwartz, Stephen R.
name: Furfaro, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Pairwise collisions between terrestrial embryos are the dominant means of accretion during the last stage of planet formation. Hence, their realistic treatment in N-body studies is critical to accurately model the formation of terrestrial planets and to develop interpretations of telescopic and spacecraft observations. In this work, we compare the effects of two collision prescriptions on the core-mantle differentiation of terrestrial planets: a model in which collisions are always completely accretionary (``perfect merging'') and a more realistic model based on neural networks that has been trained on hydrodynamical simulations of giant impacts. The latter model is able to predict the loss of mass due to imperfect accretion and the evolution of non-accreted projectiles in hit-and-run collisions. We find that the results of the neural-network model feature a wider range of final core mass fractions and metal-silicate equilibration pressures, temperatures, and oxygen fugacities than the assumption of perfect merging. When used to model collisions in N-body studies of terrestrial planet formation, the two models provide similar answers for planets more massive than 0.1 Earth's masses. For less massive final bodies, however, the inefficient-accretion model predicts a higher degree of compositional diversity. This phenomenon is not reflected in planet formation models of the solar system that use perfect merging to determine collisional outcomes. Our findings confirm the role of giant impacts as important drivers of planetary diversity and encourage a realistic implementation of inefficient accretion in future accretion studies.
description: 21 pages, 2 tables, 7 figures. Published open access on PSJ: https://iopscience.iop.org/article/10.3847/PSJ/abf0ad
Knot Floer homology detects fibred knots
Creators: name: Ni, Yi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R58, 57M27; 57R30

description: Ozsváth and Szabó conjectured that knot Floer homology detects fibred knots in $S^3$. We will prove this conjecture for null-homologous knots in arbitrary closed 3--manifolds. Namely, if $K$ is a knot in a closed 3--manifold $Y$, $Y-K$ is irreducible, and $\hat{HFK}(Y,K)$ is monic, then $K$ is fibred. The proof relies on previous works due to Gabai, Ozsváth--Szabó, Ghiggini and the author. A corollary is that if a knot in $S^3$ admits a lens space surgery, then the knot is fibred.
description: version 4: incorporates referee's suggestions, to appear in Inventiones Mathematicae
Additional file 1 of A combination of climate, tree diversity and local human disturbance determine the stability of dry Afromontane forests
Creators: name: Hishe, Hadgu
name: Oosterlynck, Louis
name: Kidane Giday
name: Keersmaecker, Wanda De
name: Somers, Ben
name: Muys, Bart
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1 : Appendix 1. Methodological protocol for humus, soil depth, and local human disturbance indicators assessment.
Coercive fields in ultrathin BaTiO3 capacitors
Creators: name: Jo, J. Y.
name: Kim, Y. S.
name: Noh, T. W.
name: Yoon, Jong-Gul
name: Song, T. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thickness-dependence of coercive field (EC) was investigated in ultrathin BaTiO3 capacitors with thicknesses (d) between 30 and 5 nm. The EC appears nearly independent of d below 15 nm, and decreases slowly as d increases above 15 nm. This behavior cannot be explained by extrinsic effects, such as interfacial passive layers or strain relaxation, nor by homogeneous domain models. Based on domain nuclei formation model, the observed EC behavior is explainable via a quantitative level. A crossover of domain shape from a half-prolate spheroid to a cylinder is also suggested at d~ 15 nm, exhibiting good agreement with experimental results.
description: 10 pages, 3 figures
An MHD spectral theory approach to Jeans' magnetized gravitational instability
Creators: name: Durrive, J. -B.
name: Keppens, R.
name: Langer, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper, we revisit the governing equations for linear magnetohydrodynamic (MHD) waves and instabilities existing within a magnetized, plane-parallel, self-gravitating slab. Our approach allows for fully non-uniformly magnetized slabs, which deviate from isothermal conditions, such that the well-known Alfvén and slow continuous spectra enter the description. We generalize modern MHD textbook treatments, by showing how self-gravity enters the MHD wave equation, beyond the frequently adopted Cowling approximation. This clarifies how Jeans' instability generalizes from hydro to magnetohydrodynamic conditions without assuming the usual Jeans' swindle approach. Our main contribution lies in reformulating the completely general governing wave equations in a number of mathematically equivalent forms, ranging from a coupled Sturm-Liouville formulation, to a Hamiltonian formulation linked to coupled harmonic oscillators, up to a convenient matrix differential form. The latter allows us to derive analytically the eigenfunctions of a magnetized, self-gravitating thin slab. In addition, as an example we give the exact closed form dispersion relations for the hydrodynamical p- and Jeans-unstable modes, with the latter demonstrating how the Cowling approximation modifies due to a proper treatment of self-gravity. The various reformulations of the MHD wave equation open up new avenues for future MHD spectral studies of instabilities as relevant for cosmic filament formation, which can e.g. use modern formal solution strategies tailored to solve coupled Sturm-Liouville or harmonic oscillator problems.
description: 20 pages, 1 figure, accepted for publication in MNRAS
Teak Log Coffins in Northwest Thailand: Dated by Dendrochronology and 14Cwiggle Matching
Creators: name: Nathsuda Pumijumnong
name: Sineenart Wannasri
Publisher: name: Environmental Research Institute Chulalongkorn University Press
Year: 2015
Subjects: Dendrochronology, archaeology, teak, log coffins, wiggle matching

description: 2, 37, Applied Environmental Research
Mushroom: Fungus with powerful Nutritional and Medicinal value
Creators: name: D, Badhe Pravin
name: Badhe Ashwini P
Publisher: name: Zenodo
Year: 2021
Subjects: Mushroom, Fungi, nutraceutical, Vitamin D, Functional foods

description: As a folk medicine and a nutraceutical rich source of nutrients, mushrooms have remained an integral part of traditional cuisines for centuries due to their beneficial health attributes. They are being studied extensively today to explain their chemical nature and mechanisms of action in biomedicine and nutraceuticals. As a macrofungus, mushrooms belong to the astounding kingdom of Fungi. Mushrooms have impressive health benefits, including antiviral, antibacterial, wound healing, anticancer, immunomodulating, antioxidant, hepatoprotective, anti-hypercholesterolemia, and anti-diabetic effects, etc., all have been reported throughout the world and have generated significant interest in even further research. Consequently, they can serve as functional foods, help with the treatment of health issues that are not in optimal states, and can reduce the risk of developing life-threatening conditions. It was found that mushrooms contained a variety of polysaccharides, proteins, lipids/fats, vitamins and minerals that contributed to their therapeutic effects.
Evolution of Collisionally Merged Massive Stars
Creators: name: Suzuki, Takeru K.
name: Nakasato, Naohito
name: Baumgardt, Holger
name: Ibukiyama, Akihiro
name: Makino, Junichiro
name: Ebisuzaki, Toshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the evolution of collisionally merged stars with mass of ~100 MSun which might be formed in dense star clusters. We assumed that massive stars with several tens Msun collide typically after ~1Myr of the formation of the cluster and performed hydrodynamical simulations of several collision events. Our simulations show that after the collisions, merged stars have extended envelopes and their radii are larger than those in the thermal equilibrium states and that their interiors are He-rich because of the stellar evolution of the progenitor stars. We also found that if the mass-ratio of merging stars is far from unity, the interior of the merger product is not well mixed and the elemental abundance is not homogeneous. We then followed the evolution of these collision products by a one dimensional stellar evolution code. After an initial contraction on the Kelvin-Helmholtz (thermal adjustment) timescale (~1000-10000 yr), the evolution of the merged stars traces that of single homogeneous stars with corresponding masses and abundances, while the initial contraction phase shows variations which depend on the mass ratio of the merged stars. We infer that, once runaway collisions have set in, subsequent collisions of the merged stars take place before mass loss by stellar winds becomes significant. Hence, stellar mass loss does not inhibit the formation of massive stars with mass of ~1000Msun.
description: 11 pages, 16 figures embedded, submitted to ApJ
Sabores con saber. Las cocinas regionales andinas desde sus ingredientes, saberes y prácticas. La provincia de Jujuy (Argentina) como plato principal
Creators: name: Musaubach, Maria Gabriela
Publisher: name: Zenodo
Year: 2021
Subjects: subject: cultivos andinos
subject: Quebrada de Humahuaca
subject: cocinas regionales
subject: sistema agroalimentario
subject: https://en.wikipedia.org/wiki/Ethnoarchaeology
subject: https://en.wikipedia.org/wiki/Andean_agriculture
subject: https://en.wikipedia.org/wiki/Quebrada_de_Humahuaca

description: CONFERENCE PAPER: Presentamos resultados preliminares de las investigaciones realizadas con cocineras regionales y con productores jujeños dedicados a la agricultura a pequeña escala en la Comunidad Aborigen Los Chorrillos, en la Quebrada Los Filtros y en Villa El Perchel (Jujuy, Argentina). Este trabajo forma parte de los estudios desarrollados en el sector centro y centro-sur de la Quebrada de Humahuaca, cuyo objetivo es estudiar los saberes y prácticas culinarias tradicionales locales, así como su raíz ancestral en el registro arqueológico. Buscamos comprender y valorizar las cocinas regionales, sus ingredientes y sus recetarios. En esta oportunidad discutimos cuestiones vinculadas a los cultivos andinos del actual sistema agroalimentario jujeño, su forma de producción, obtención y su consumo. Registramos las dinámicas y estrategias aplicadas para su crianza, así como la memoria familiar de recetas tradicionales realizadas tanto para la vida cotidiana, como aquellas realizadas para festividades que forman parte del calendario agrícola-ritual (Pachamama, Día de los Santos Inocentes o Carnaval, entre otros). El trabajo etnográfico y etnoarqueológico realizado en los huertos y chacras nos permitió explorar los paisajes productivos quebradeños, su organización e infraestructura. El trabajo realizado en las cocinas, nos acercó a los procesamientos culinarios (recetas y pasos operativos), los utensilios empleados en su preparación, así como los elementos inmateriales de los saberes culinarios (sabores, significados, recuerdos evocados). Estudiamos nuevas recetas, contextos de preparación y consumo para profundizar nuestro conocimiento sobre las prácticas culinarias tradicionales y sus raíces ancestrales. La información obtenida de las practicas actuales resulta valiosa para derivar hipótesis de trabajo acerca de las practicas culinarias y recetas que se habrían podido realizar en épocas prehispánicas en la Quebrada de Humahuaca. Mediante estos estudios, nos proponemos seguir aportando a la valorización, visibilización, salvaguarda y gestión del patrimonio culinario quebradeño como patrimonio integral.
description: III Jornadas Argentinas de Etnobiología y Sociedad. "Naturaleza/s en construcción: en la confluencia de territorios, actores y disciplinas" (10, 11 y 12 de noviembre de 2021, La Plata - Modalidad virtual)
Being Home: Jazz Authority and the Politics of Place
Creators: name: Iyer, Vijay
Publisher: name: Current Musicology
Year: 2001

description: Songs of the Unsung: The Musical and Social Journey of Horace Tapscott sets forth an astonishing, searingly honest view of one segment of music history that is indeed unsung. Tapscott (1934-1999) was a pianist, composer, bandleader, and social activist who spent most of his life in the Mrican American communities of Los Angeles. In 1998, sociologist Steven Isoardi collaborated with several generations of Los Angeles jazz musicians to compile a vital oral history of that city’s rich, undervalued role in African American music and culture (Bryant et al. 1998). Among Isoardi’s interview subjects was Tapscott, who also served as a co-editor of the compilation. Several hours of conversation with Tapscott were distilled into a handful of pages for his entry in that volume. Subsequent to Tapscott’s death, Isoardi arranged these transcribed recollections into a coherent, compelling autobiography. The resultant memoir reminds us with stunning candor that too much has happened under the radar of the jazz industry. Released in time for the holiday season in 2000, The Oxford Companion to Jazz (hereafter OCJ) endeavors to be viewed as “the one indispensable publication in the field,” to quote a highlighted phrase in the back-of-thejacket testimonial by seasoned producer George Avakian. Editor Bill Kirchner commissioned sixty brief thematic chapters by fifty-nine different contributors, including journalists, critics, scholars, and musicians. Many of the chapters take the form of mini-histories, covering important individual figures of jazz, single canonical stylistic eras by decade and genre, notable musicians by instrument, or specific jazz histories by region.
description: Current Musicology, No 71-73 (2002): Current Musicology
The development of speech acts by a blind child and his sighted identical twin
Creators: name: Klincans, Lisa Helena
Publisher: name: University of British Columbia
Year: 2010

description: The current study compares the types of speech acts used by a blind child and his sighted identical twin. To describe the children's speech acts, a taxonomy was developed based on Searle & Vanderveken's (1985) Speech Act Theory. The taxonomy incorporated categories from Ninio & Wheeler's taxonomy of speech acts in mother-child interactions. The children who participated in the study were a pair of identical twin boys, one of whom is blind due to retinopathy of prematurity, and one of whom has functionally normal vision. Data for this study were obtained from audio-videotapes of the twins interacting with family members at home, and transcripts of these interactions. The twins' utterances were coded for speech act types. Speech act types and frequency were analyzed for each child at four different ages: 2 years 3 months (2;3), 3;0, 3;6 and 4;0. Results indicate that the order of emergence of speech acts was essentially the same for both boys. The main difference in the twins' speech act use was in the relative frequency with which each twin used particular speech act types. The blind twin produced more requests for action, information and clarification than the sighted twin, suggesting strategic use of language to manipulate others in his environment and to gain some control in social interaction. His tendency to refer to others' activities was lower than his sighted brother's tendency to do so. In addition, temporal reference in the assertions of the blind child was predominandy to ongoing events; he referred to future, past and make-believe events less often than his sighted twin. These differences may be attributable to the blind child's inability to perceive events occurring around him that do not involve him or that cannot be perceived auditorily. The current taxonomy succeeded in describing children's early speech acts in accordance with the principles of Speech Act Theory presented by Searle & Vanderveken (1985). The taxonomy facilitated description of the children's speech act development better than previous taxonomies because it maintained the integrity of discourse and illocutionary levels of language.
Moufang symmetry X. Generalized Lie and Maurer-Cartan equations of continuous Moufang transformations
Creators: name: Paal, Eugen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20N05, 17D10

description: The differential equations for a continuous birepresentation of a local analytic Moufang loop are established. The commutation relations for the infinitesimal operators of the representation are found. These commutation relations can be seen as a (minimal) generalization of the Maurer-Cartan equations and do not depend on the particular birepresentation.
description: 7 pages, LaTeX2e, no figures
Entropy bound in Einstein-Born-Infeld black holes
Creators: name: Falciano, F. T.
name: Peñafiel, M. L.
name: Fabris, J. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the validity of Bekenstein's entropy bound for a charged black hole in the context of nonlinear electrodynamics. Bekenstein's inequalities are commonly understood as universal relations between the entropy, the charge, the momentum, and the energy of a physical system but independent of its dynamics. In particular, we consider the Born-Infeld electrodynamics coupled to gravity as described by General Relativity. Following the steps that lead to these inequalities, we study the absorption of a charged test particle by the black hole and verify that the entropy bound is violated. We find a modified upper bound for the entropy that depends on the maximum field parameter of the Born-Infeld theory.
description: 13 pages, 5 figures
Nonequilibrium dynamics of polymer translocation and straightening
Creators: name: Sakaue, Takahiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: When a flexible polymer is sucked into a localized small hole, the chain can initially respond only locally and the sequential nonequilibrium processes follow in line with the propagation of the tensile force along the chain backbone. We analyze this dynamical process by taking the nonuniform stretching of the polymer into account both with and without hydrodynamics interactions. Earlier conjectures on the absorption time are criticized and new formulae are proposed together with time evolutions of relevant dynamical variables.
description: 7 pages, 4 figures
title: Организационно-правовые основы государственной службы в России
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2024

description: В учебном пособии раскрыты основные положения организационно-правового обеспечения в сфере государственной службы России. Охарактеризованы отдельные институты, нормы которых регулируют отношения в указанной сфере. Рассмотрены формы и методы управления государственной службой. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов юридических и экономических специальностей, изучающих дисциплины «Организационно-правовые основы государственной и муниципальной службы», «Государственная и муниципальная служба». Также будет полезно преподавателям и аспирантам вузов, других высших и средних учебных заведений, научным работникам, а также всем изучающим или интересующимся проблемами государственной службы в современной России.
A Timely Musical Discourse, or A Music Treatise from Lost Times, Part I
Creators: name: Bonus, Alexander
Publisher: name: Current Musicology
Year: 2013

description: Eschewing some serious scholarly reservations, I wish to present a significant portion of a heretofore unknown treatise that concerns the nature of musical time. It takes the form of a dialogue between two musicians, a teacher and his student. The characters might represent actual musicians, or perhaps they personify two entirely contrasting musical cultures. In all likelihood, they are both fictional. Yet if we take their discussion as an allegorical representation of a fundamental rift in the understanding of musical time, then the characters seem to function as every–musicians, who offer a variety of arguments in support of fundamentally oppositional stances. Their wandering discussion, as is typical of the Socratic style, nevertheless revolves around a central thesis. What quickly comes to the fore is the teacher’s assertion that objectivist ideals regarding temporality fail to reflect complex performance practices from past Western traditions.
description: Current Musicology, No 95 (2013): Current Musicology
title: Организационно-правовые основы государственной службы в России
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2024

description: В учебном пособии рассматриваются такие вопросы, как сущность, принципы и содержание государственного управления и исполнительной деятельности, механизм и особенности организационно-правового регулирования в современный период, правовой статус субъектов государственной службы, формы и методы их управленческой деятельности. Дана характеристика отдельных институтов, нормы которых регулируют отношения в указанной сфере, показаны формы и методы управления государственной службой. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта среднего профессионального образования. Учебное пособие предназначено для студентов специальности «Документационное обеспечение управления и архивоведение», изучающих дисциплину «Государственная и муниципальная служба». Также будет полезно всем читателям, изучающим или интересующимся проблемами государственной службы в современной России.
Toy models for closed string tachyon solitons
Creators: name: Bergman, Oren
name: Razamat, Shlomo S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present qualitative evidence that closed string tachyon solitons describe backgrounds of lower-dimensional sub-critical string theory. We show that a co-dimension one soliton in the low energy effective gravity-dilaton-tachyon theory in general has a flat string-frame metric, and a dilaton that grows in both directions away from the core, and is linear in the soliton worldvolume coordinates. Spacetime, as seen in the Einstein frame, is therefore effectively localized in (D-1)-dimensions, in which the dilaton is linear, in agreement with the linear dilaton background of the (D-1)-dimensional sub-critical string. We construct a number of exactly solvable toy models with specific tachyon potentials that exhibit these features, and address the question of finding solitons in the bosonic closed string field theory using the recent advances in computing the tachyon potential.
description: 19 pages, 10 figures; v2: references added
Surface Geometry of 5D Black Holes and Black Rings
Creators: name: Frolov, Valeri P.
name: Goswami, Rituparno
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: We discuss geometrical properties of the horizon surface of five-dimensional rotating black holes and black rings. Geometrical invariants characterizing these 3D geometries are calculated. We obtain a global embedding of the 5D rotating black horizon surface into a flat space. We also describe the Kaluza-Klein reduction of the black ring solution (along the direction of its rotation) which relates this solution to the 4D metric of a static black hole distorted by the presence of external scalar (dilaton) and vector (`electromagnetic') field. The properties of the reduced black hole horizon and its embedding in $\E^3$ are briefly discussed.
description: 10 pages, 9 figures, Revtex4
Semiflexible Polymer Confined in Closed Spaces
Creators: name: Sakaue, Takahiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze static properties of a strongly confined semiflexible polymer, i.e. either trapped in a closed space or compressed by external forces, in an athermal solvent. Like a flexible polymer case, we can resort to an analogy with the semidilute solution, but a complication due to the additional length scale arising from the chain rigidity results in more diverse behaviours depending on system parameters. For each regime, scaling forms of the excess free energy of the confinement are derived. Effects of the confinement geometry and the solvent quality are briefly discussed.
description: 7 pages, 2 figures
Synthesis and biological evaluation of halogenated phenoxychalcones and their corresponding pyrazolines as cytotoxic agents in human breast cancer
Creators: name: Halim, Peter A.
name: Hassan, Rasha A.
name: Mohamed, Khaled O.
name: Hassanin, Soha O.
name: Khalil, Mona G.
name: Abdou, Amr M.
name: Osman, Eman O.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Novel halogenated phenoxychalcones 2a–f and their corresponding N-acetylpyrazolines 3a–f were synthesised and evaluated for their anticancer activities against breast cancer cell line (MCF-7) and normal breast cell line (MCF-10a), compared with staurosporine. All compounds showed moderate to good cytotoxic activity when compared to control. Compound 2c was the most active, with IC50 = 1.52 µM and selectivity index = 15.24. Also, chalcone 2f showed significant cytotoxic activity with IC50 = 1.87 µM and selectivity index = 11.03. Compound 2c decreased both total mitogen activated protein kinase (p38α MAPK) and phosphorylated enzyme in MCF-7 cells, suggesting its ability to decrease cell proliferation and survival. It also showed the ability to induce ROS in MCF-7 treated cells. Compound 2c exhibited apoptotic behaviour in MCF-7 cells due to cell accumulation in G2/M phase and elevation in late apoptosis 57.78-fold more than control. Docking studies showed that compounds 2c and 2f interact with p38alpha MAPK active sites.
Unimodular Fourier multipliers for modulation spaces
Creators: name: Benyi, Arpad
name: Gröchenig, Karlheinz
name: Okoudjou, Kasso
name: Rogers, Luke
Publisher: name: arXiv
Year: 2006
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42B15, 42B35, 47G30

description: We investigate the boundedness of unimodular Fourier multipliers on modulation spaces. Surprisingly, the multipliers with general symbol $e^{i|ξ|^α}$, where $α\in[0, 2]$, are bounded on all modulation spaces, but, in general, fail to be bounded on the usual $L^p$-spaces. As a consequence, the phase-space concentration of the solutions to the free Schrödinger and wave equations are preserved. As a byproduct, we also obtain boundedness results on modulation spaces for singular multipliers $|ξ|^{-δ} \sin (|ξ|^α)$ for $ 0 \leq δ\leq α$.
description: 18 pages
Fan Fare: An Investigation of Recent Jazz Biographies
Creators: name: Spring, Evan
Publisher: name: Current Musicology
Year: 2001

description: Expert music scholars have long derided most jazz books as glorified fandom, or at best inflated magazine articles. Especially suspect is jazz bi-ography, the sycophantish fan's most likely entree into book publishing. Unfortunately, these biographies under consideration, with one or per-haps two exceptions, will do little to dispel highbrow suspicions.
description: Current Musicology, No 71-73 (2002): Current Musicology
Phosphorylation status of 72 kDa MMP-2 determines its structure and activity in response to peroxynitrite
Creators: name: Jacob-Ferreira, Anna Laura; Kondo, Marcia Yuri; Baral, Pravas Kumar; James, Michael N.; Holt, Andrew; Fan, Xiaohu; Schulz, Richard
Publisher: name: University of Alberta Libraries
Year: 2013

Abstract
Review of Rob van der Bliek, ed. 2001. The Thelonious Monk Reader. New York: Oxford University Press
Creators: name: Priestley, Brian
Publisher: name: Current Musicology
Year: 2001

description: The music of Thelonious Monk has evoked increasing interest in the twenty years since his death. His themes, which used to be thought unappetizing for others to play, are now eagerly lapped up by performance students, as well as by those professionals for whom honoring “the tradition” is an important activity. Already since the 1960s, when the concept of avant-garde jazz meant so many different things to different people, Monk’s combination of surface irregularity with a ruthless inner logic has been consistently influential; in particular, the organic and unstilted use of motivic development in his themes is widely seen as an ideal to aspire to. Meanwhile, his own documentation of these themes-both the original recordings dating principally from 1947-56 and the later extended versions representing his live performance methods-have been remastered and reissued in great profusion. It is understandable that, especially among those absorbed in the music, and among those less captivated by it too, there is also still considerable curiosity about Monk’s history. The Thelonious Monk Reader, a collection of previously published journalism and criticism, usefully focuses on a life of marked contrasts, as far as his public reputation and visibility were concerned, but one balanced by a private existence that was seemingly more stable and unruffled than that enjoyed by most jazz musicians.
description: Current Musicology, No 71-73 (2002): Current Musicology
Photon decay in UHE air showers: stringent bound on Lorentz violation
Creators: name: Duenkel, Fabian
name: Niechciol, Marcus
name: Risse, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In extensive air showers induced by ultra-high-energy (UHE) cosmic rays, secondary photons are expected to be produced at energies far above those accessible by other means. It has been shown that the decay of such photons, as possible in certain theories allowing Lorentz violation, can lead to significant changes of the shower development. Based on observations of the average depth of the shower maximum $\left$, a stringent bound on Lorentz violation has been placed in a previous work. Here we include the shower-to-shower fluctuations $σ(X_\text{max})$ as an additional observable. The combined comparison of $\left$ and $σ(X_\text{max})$ to shower observations allows a much stricter test of the possible decay of UHE photons, improving the previous bound by a factor of 50.
description: 13 pages, 5 figures; v2: final version to appear in PRD
Redesigning Decision Matrix Method with an indeterminacy-based inference process
Creators: name: Salmeron, Jose L.
name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.11

description: For academics and practitioners concerned with computers, business and mathematics, one central issue is supporting decision makers. In this paper, we propose a generalization of Decision Matrix Method (DMM), using Neutrosophic logic. It emerges as an alternative to the existing logics and it represents a mathematical model of uncertainty and indeterminacy. This paper proposes the Neutrosophic Decision Matrix Method as a more realistic tool for decision making. In addition, a de-neutrosophication process is included.
description: 12 pages, 4 figures, one table
Predicting the Time Until a Vehicle Changes the Lane Using LSTM-based Recurrent Neural Networks
Creators: name: Wirthmüller, Florian
name: Klimke, Marvin
name: Schlechtriemen, Julian
name: Hipp, Jochen
name: Reichert, Manfred
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: To plan safe and comfortable trajectories for automated vehicles on highways, accurate predictions of traffic situations are needed. So far, a lot of research effort has been spent on detecting lane change maneuvers rather than on estimating the point in time a lane change actually happens. In practice, however, this temporal information might be even more useful. This paper deals with the development of a system that accurately predicts the time to the next lane change of surrounding vehicles on highways using long short-term memory-based recurrent neural networks. An extensive evaluation based on a large real-world data set shows that our approach is able to make reliable predictions, even in the most challenging situations, with a root mean squared error around 0.7 seconds. Already 3.5 seconds prior to lane changes the predictions become highly accurate, showing a median error of less than 0.25 seconds. In summary, this article forms a fundamental step towards downstreamed highly accurate position predictions.
description: the article has been accepted for publication in IEEE Robotics and Automation Letters (RA-L); the article has been submitted to RA-L with IEEE ICRA conference option; if the article will be presented during the conference will be decided independently; 8 pages, 5 figures, 6 tables
Phil Pastras. Dead Man Blues: Jelly Roll Morton Way Out West. Berkeley: University of California Press, 2001. xx, 246 pp.
Creators: name: Ogren, Kathy J.
Publisher: name: Current Musicology
Year: 2001

description: Author Phil Pastras opens his biographical study of legendary pianist Jelly Roll Morton with an epigram from poet Dylan Thomas-"Oh make me a mask"-and with that signal, Dead Man Blues: Jelly Roll Morton Way Out West takes us on the road with trickster Ferdinand Joseph LaMenthe, a.k.a. Jelly Roll. Pastras appreciates the facility with which Morton, like many Mrican American jazz musicians, used performative masks to strate-gize resilient careers in a capricious music business. Pastras writes: "Morton was a man of many masks, especially at the beginning of his ca-reer: pool hustler, card shark, pimp, vaudevillian, pianist, composer and bandleader. He did not focus exclusively on the music until after his five year stay on the West Coast, from 1917 to 1923" (6). Acknowledging the examples set by Ralph Ellison (1964) and Albert Murray (1976) in their essays on the ritual importance of donning masks in performance, Pastras sets out to find "what the mask tells us about its maker" (12). And the setting for this exploration-the American West-locates Jelly Roll as a rambler who reinvents himself and finds his defining identity on the American frontier.
description: Current Musicology, No 71-73 (2002): Current Musicology
From Errata 5uite
Creators: name: Retallack, Joan
Publisher: name: Current Musicology
Year: 2013

description: Errata 5uite. errant phrase denoting a succession of 5 line errata slips of tongue composed of letter notes written on 5 line musical staves (invisible) together forming a silent suite (Fr. a following).
description: Current Musicology, No 95 (2013): Current Musicology
Review of Eric Porter. 2002. What Is This Thing Called Jazz?: African American Musicians as Artists, Critics, and Activists. Berkeley: University of California Press
Creators: name: Gabbard, Krin
Publisher: name: Current Musicology
Year: 2001

description: For too long, jazz writers, including the handful of academics who can legitimately be called ‘Jazz scholars,” promoted myths of the music’s autonomy. According to this myth, the identity of the musicians, the venues where they performed, and what they said off the bandstand were of little or no importance. It was all about the music. This conviction led the esteemed jazz scholar Gunther Schuller to write a huge book on the Swing Era that consists almost entirely of record reviews. Writing on Louis Armstrong in The Swing Era, Schuller goes out on a limb and says that “one must eventually come to grips with the totality of his life and work. This can only be done in a dispassionate way, which also takes into account Louis’s personality and temperament, and the social-economic conditions within which he labored” (1989:160). This call, however, is in a footnote, and there is virtually nothing in Schuller’s book that follows through on his own suggestions about how to understand Armstrong’s life and work. It is also significant that Schuller omits any reference to what Armstrong, a highly prolific writer himself (see Armstrong 1999), may have had to say about those “social-economic conditions.” Many of us in the jazz studies community are now likely to agree that it’s never just about the music. The music only means what it is allowed to mean. For most of its one hundred year history, jazz has been colonized by critics, most of them white, who have imposed their own meanings on the music. And during much of this period, jazz artists, most of them African American, have struggled to combine their words with their musical utterances in order to create their own meanings.
description: Current Musicology, No 71-73 (2002): Current Musicology
All-optical manipulation of photonic membranes
Creators: name: Askari, Meisam
name: Kirkpatrick, Blair C.
name: Čižmár, Tomas
name: Di Falco, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Here we demonstrate the all-optical manipulation of polymeric membranes in microfluidic environments. The membranes are decorated with handles for their use in holographic optical tweezers setups. Our results show that due to their form factor the membranes present an 8-fold increase in their mechanical stability, respect to micrometric dielectric particles. This intrinsic superior stability is expected to improve profoundly a wide range of bio-photonic applications that rely on the optical manipulation of micrometric objects while studying single-molecule mechanics and sub-cellular scale transport processes.
Review of Alyn Shipton. 2001. A New History of Jazz. London and New York: Continuum
Creators: name: Tirro, Frank
Publisher: name: Current Musicology
Year: 2001

description: The arrival of a book that purports to be a “new” history of jazz signals an event of no small consequence among the dedicated community of jazz scholars. Several excellent histories, such as those by Lewis Porter and Michael Ullman (1992) and by Ted Gioia (1997), have been published within the past decade, the former a work of careful scholarship and good pedagogical sensibility and the latter just as thoughtfully constructed, but more philosophical in nature. At the same time, outstanding dissertations, monographs, research articles, collected readings, conference papers, reviews, obituaries, discographies, useful web sites, and more are now appearing with frequent regularity to expand our knowledge of the field. Barry Kernfeld’s finely edited second edition of the New Grove Dictionary of Jazz (2001), popularly referred to as JazzGrove II, is a stellar resource and has been welcomed with consistently good reviews. Additionally, the hundreds of entries onjazz, ragtime, blues, and popular musicians in the new American National Biography (Garraty and Carnes 1999) have begun to give us a sense of finally coming to grips with the history of this music. In dealing with Shipton’s book, we must first put the publisher’s hyperbole to rest and hope that it does not truly represent the view of the author. To start with, the book is accompanied by a pair of compact disk recordings entitled: Jazz: The Definitive Performances. Almost by definition, there are no definitive performances in jazz, an improvisatory art that reinvents the created art object with each subsequent performance. Also, no collection of thirty-two samples can even approach a representative display of jazz in its many forms or its artists in their various phases. Additionally, any collection of jazz that has no Charlie Parker recordings, for whatever reason, is certainly less than definitive. And finally, compared to the outstanding list of jazz recordings selected by Martin Williams for the Smithsonian Collection of Classic Jazz-even with its faults, omissions, and limitations-Shipton’s two CDs are not in the same league. The publisher’s press releases also billed this book as an “antidote to Ken Burns’ ‘Jazz’,” the ten-part television documentary that needs no antidote. Burns’s work, with all its shortcomings, was constructed in a totally different medium, created with a substantially different audience in mind, and was part of a larger personal triptych on race relations in the United States: The Civil War, Baseball, and Jazz. The comparison is unwarranted and unfair.
description: Current Musicology, No 71-73 (2002): Current Musicology