cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Casimir Invariants from Quasi-Hopf (Super)algebras
Creators: name: Gould, Mark. D.
name: Zhang, Yao-Zhong
name: Isaac, Phillip S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show how to construct, starting from a quasi-Hopf (super)algebra, central elements or Casimir invariants. We show that these central elements are invariant under quasi-Hopf twistings. As a consequence, the elliptic quantum (super)groups, which arise from twisting the normal quantum (super)groups, have the same Casimir invariants as the corresponding quantum (super)groups.
description: 24 pages, Latex file
Completion of Linear Differential Systems to Involution
Creators: name: Gerdt, Vladimir P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we generalize the involutive methods and algorithms devised for polynomial ideals to differential ones generated by a finite set of linear differential polynomials in the differential polynomial ring over a zero characteristic differential field. Given a ranking of derivative terms and an involutive division, we formulate the involutivity conditions which form a basis of involutive algorithms. We present an algorithm for computation of a minimal involutive differential basis. Its correctness and termination hold for any constructive and noetherian involutive division. As two important applications we consider posing of an initial value problem for a linear differential system providing uniqueness of its solution and the Lie symmetry analysis of nonlinear differential equations. In particular, this allows to determine the structure of arbitrariness in general solution of linear systems and thereby to find the size of symmetry group.
description: 23 pages, LaTeX, uses the Springer file lncse.cls
Additional file 2: of Relationship between tumor biomarkers and efficacy in MARIANNE, a phase III study of trastuzumab emtansine Âą pertuzumab versus trastuzumab plus taxane in HER2-positive advanced breast cancer
Creators: name: Perez, Edith
name: Haas, Sanne De
name: Eiermann, Wolfgang
name: Barrios, Carlos
name: Toi, Masakazu
name: Young-Hyuck Im
name: Conte, Pier
name: Martin, Miguel
name: Pienkowski, Tadeusz
name: Pivot, Xavier
name: Burris, Howard
name: Stanzel, Sven
name: Patre, Monika
name: Ellis, Paul
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: List of institutional review boards/ethics committees. (PDF 354 kb)
An analogue of the Perelomov-Popov formula for the Lie superalgebra Q(N)
Creators: name: Grigoryev, Timofey
name: Nazarov, Maxim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: In this short note we study the center of the universal enveloping algebra of the strange Lie superalgebra Q(N). We obtain an analogue of the well known Perelomov-Popov formula (1968) for central elements of this algebra - an expression of the central characters through the highest weight parameters.
description: 5 pages, thanks added
Manet's Watercolors: Transition and Translation in the 1860s
Creators: Kremnitzer, Kathryn
Publisher: name: Columbia University
Year: 2020
Subjects: Watercolor painting, French
Drawing
Prints--Technique
Art
History in art

description: This dissertation aims to establish a technical discourse around Édouard Manet’s early watercolors and to clarify their intermediary function between his painting and printmaking in the 1860s. My project breaks from historically medium-specific divisions within museum collections and catalogue raisonnés to consider a series of case studies that attest to Manet’s working methods across media. Guided by collaborative efforts in conversation with curators and conservators, my close physical examination and analysis of the paintings, drawings, and prints that constitute each chapter resulted in new technical imaging that contributes unprecedented visual evidence to the study of Manet’s crucially influential career.
Cluster Percolation and Critical Behaviour in Spin Models and SU(N) Gauge Theories
Creators: name: Fortunato, Santo
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The critical behaviour of several spin models can be simply described as percolation of some suitably defined clusters, or droplets: the onset of the geometrical transition coincides with the critical point and the percolation exponents are equal to the thermal exponents. It is still unknown whether, given a model, one can define at all the droplets. In the cases where this is possible, the droplet definition depends in general on the specific model at study and can be quite involved. We propose here a simple general definition for the droplets: they are clusters obtained by joining nearest-neighbour spins of the same sign with some bond probability p_B, which is the minimal probability that still allows the existence of a percolating cluster at the critical temperature T_c. By means of lattice Monte Carlo simulations we find that this definition indeed satisfies the conditions required for the droplets, for many classical spin models, discrete and continuous, both in two and in three dimensions. In particular, our prescription allows to describe exactly the confinement-deconfinement transition of SU(N) gauge theories as Polyakov loop percolation.
description: 10 pages, 7 figures, 6 tables
Differential Observation Techniques for the SZE-21cm and radio sources
Creators: name: Takalana, Charles Mpho
name: Marchegiani, Paolo
name: Colafrancesco, Sergio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The SZE-21cm has been proposed as an alternative probe for the Dark Ages (DA) and the Epoch of Reionization (EoR). The effect is produced when photons of the 21cm background are inverse Compton (up-)scattered by electrons residing in hot plasma of cosmic structures and can be studied through differential observations of the large-scale structure, towards and away a region of the radio sky containing the cosmic structure of interest. This work makes use of the 21cmFAST code to simulate low frequency radio observations of a galaxy cluster from which we then extract the SZE-21cm signal. We further explore uses of the differential technique to radio observations of active radio galaxies using radio observations from the MWA GLEAM survey. The differential techniques this work studies enable us to extract the SZE-21cm signal from simulated galaxy cluster observations, which can then be used to obtain the global features of the 21cm signal during the DA and EoR. The technique shows further benefits in source extraction and characterisation, and feature enhancement in radio observations particularly for low-surface brightness and extended radio sources.
description: 11 pages, 5 figures, (Accepted) Proceedings of Science: High Energy Astrophysics in South Africa 2018. arXiv admin note: text overlap with arXiv:astro-ph/0511240 by other authors
Maneuvering Mobility: Measuring Multimodality in New York City’s Selected Transit Hubs
Creators: Indrakesuma, Faisha Namira
Publisher: name: Columbia University
Year: 2018
Subjects: City planning
Urban transportation
Terminals (Transportation)

description: The main purpose of this research is to answer the question of how New York City encourages multimodality through institutional and fare integration and how different transportation hubs within the city service multimodality through physical design. This research is primarily a qualitative study that heavily relies on direct field observations as well as reviews of the relevant literature. The analysis of this thesis is broken down into three main categories of multimodality integration: institutional, fare, and physical. The analysis of physical integration is focused on three transportation hubs: namely the Atlantic Terminal, the Wall Street Ferry Station, and the Harlem 125th Street Station. This thesis finds that New York City is a unique context in the organizations that are active in daily operations of public transportation. This institutional division of operations would consequently lead to low integration. While the presence of different transportation modes are continually present in proximity to each other, the ease of transfer most of the time is coincidental based on density and frequency of service and has little to do with intentional integration.
Additional file 1: of Prevalence of intestinal parasitic infection and its association with anemia among pregnant women in Wondo Genet district, Southern Ethiopia: a cross-sectional study
Creators: name: Amelo Bolka
name: Gebremedhin, Samson
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: STROBE Statement. (DOC 86 kb)
Manhattan Parking Garages 1897 – 1930: Significance And Preservation
Creators: Grossman, Hilary
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Architecture
subject: FOS: Civil engineering
subject: Historic buildings
subject: Parking garages
subject: Architecture--Preservation

description: This thesis is a survey and study of the purpose built garages erected between 1897 and 1930 with a focus on upper Manhattan north of 50th Street. This study is bracketed between the years 1897, when the first commercial garage was opened in Manhattan and 1930 when new zoning regulations and an economic downturn ended the construction of purpose built garages in Manhattan. This thesis identifies and defines purpose-built garages as a distinct and significant architectural type and makes a case for their preservation by highlighting their historical development, architectural design, technical features, and cultural significance. In conclusion, this thesis puts forth a complete study of the early 1900s upper Manhattan purpose built garage building from its development to the present day.
Critical Behavior in the Brans-Dicke Theory of Gravitation
Creators: name: Chiba, Takeshi
name: Soda, Jiro
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The collapse of a massless scalar field in the Brans-Dicke theory of gravitation is studied in the analysis of both analytical solution and numerical one. By conformally transforming the Roberts's solution into the Brans-Dicke frame, we find for $ω> -3/2$ that a continuous self-similarity continues and that the critical exponent does depend on $ω$. By conformally transforming the Choptuik's solution into the Brans-Dicke frame, we find for $ω> -3/2$ that at the critical solution shows discrete self-similarity, however, the critical exponent depends strongly on $ω$ while the echoing parameter weakly on it.
description: 6 pages
title: Loropetalum chinense (R. Br.) Oliv.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2011
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Το άτομον της ύλης και η διάσπασις αυτού εις την βόμβαν του ατόμου: προς ολοκληρωτικήν καταστροφήν ή επίγειον παράδεισον;
Creators: name: (:Unkn) Unknown
Publisher: name: [χ.έ]
Year: 2024
Subjects: Atomic bomb, History

description: 48 σ.
On Extracting Data from Tables that are Encoded using HTML
Creators: name: Roldán, Juan C.
name: Jiménez, Patricia
name: Corchuelo, Rafael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Tables are a common means to display data in human-friendly formats. Many authors have worked on proposals to extract those data back since this has many interesting applications. In this article, we summarise and compare many of the proposals to extract data from tables that are encoded using HTML and have been published between $2000$ and $2018$. We first present a vocabulary that homogenises the terminology used in this field; next, we use it to summarise the proposals; finally, we compare them side by side. Our analysis highlights several challenges to which no proposal provides a conclusive solution and a few more that have not been addressed sufficiently; simply put, no proposal provides a complete solution to the problem, which seems to suggest that this research field shall keep active in the near future. We have also realised that there is no consensus regarding the datasets and the methods used to evaluate the proposals, which hampers comparing the experimental results.
Sweet & Sour and other flavours of ccc forcing notions
Creators: name: Roslanowski, Andrzej
name: Shelah, Saharon
Publisher: name: arXiv
Year: 1999
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E35 (Primary) 03E40, 03E05 (Secondary)

description: The present paper has three themes. First, we continue the investigations started in Judah, Roslanowski and Shelah \math.LO/9310224 and Roslanowski and Shelah math.LO/9807172, math.LO/9703222, and we investigate the method of norms on possibilities in the context of ccc forcing notions, getting a number of constructions of nicely definable ccc forcings. The second theme of the paper is a part of the general program ``how special are random and Cohen forcing notions (or: the respective ideals)''. Shelah math.LO/9303208 shows that the two forcing notions may occupy special positions in the realm of nicely definable forcing notions. In this realm we may classify forcing notions using the methods of Shelah [Sh:630] (math.LO/9712283), [Sh:669] and, for example, declare that very Souslin (or generally omega-nw-nep) ccc forcing notions are really nice. Both the Cohen forcing notion and the random forcing notion and their FS iterations (and nice subforcings) are all ccc omega-nw-nep, and Problem 4.24 of math.LO/9906113 asked if we have more examples. It occurs that our method relatively easily results in very Souslin ccc forcing notions. The third theme is Sweet & Sour, and it is related to one of the most striking differences between the random and the Cohen forcing notions that appears when we consider the respective regularity properties of projective sets: the Lebesgue measurability of Sigma^1_3 sets implies aleph_1 is inaccessible in L, while one can construct (in ZFC) a forcing notion P which forces ``projective subsets of R have the Baire property'' (see Shelah [Sh:176]).
title: Ludisia discolor (Ker-Gawl.) A. Rich.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2011
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Additional file 1: of Relationship between tumor biomarkers and efficacy in MARIANNE, a phase III study of trastuzumab emtansine Âą pertuzumab versus trastuzumab plus taxane in HER2-positive advanced breast cancer
Creators: name: Perez, Edith
name: Haas, Sanne De
name: Eiermann, Wolfgang
name: Barrios, Carlos
name: Toi, Masakazu
name: Young-Hyuck Im
name: Conte, Pier
name: Martin, Miguel
name: Pienkowski, Tadeusz
name: Pivot, Xavier
name: Burris, Howard
name: Stanzel, Sven
name: Patre, Monika
name: Ellis, Paul
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 60506 Virology
subject: Computational Biology

description: Table S1. List of covariates (and associated hazard ratios with 95% CIs as well as P-values) included in the final multivariate regression model applied to evaluate PFS. Final model derived using stepwise backward variable selection. Table S2. PFS in HER2 mRNA and PIK3CA biomarker subgroups. Table S3. PFS in biomarker subgroups defined by PIK3CA in combination with HER2 mRNA expression. Figure S1. PFS by HER2 mRNA expression and PIK3CA biomarker status in patients with de novo disease. (PDF 546 kb)
Refraction enhancement in plasmonics by the coherent control of plasmon resonances
Creators: name: Panahpour, Ali
name: Mahmoodpoor, Abolfazl
name: Lavrinenko, Andrei V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A plasmonic nanoantenna probed by a plane-polarized optical field in a medium with no gain materials can show zero absorption or even amplification, while exhibiting maximal polarizability. This occurs through coupling to an adjacent nanoantenna in a specially designed metamolecule, which is pumped by an orthogonal optical field with phase shift. The introduced scheme is a classical counterpart of an effect known in quantum optics as enhancement of the index of refraction (EIR). In contrary to electromagnetically induced transparency (EIT), where the medium is rendered highly dispersive at the point of zero susceptibility and minimum absorption, in the EIR the system exhibits large susceptibility and low dispersion at the point of zero or negative absorption. The plasmonic analogue of the EIR allows for coherent control over the polarizability and absorption of plasmonic nanoantennas, offering a novel approach to all optical switching and coherent control of transmission, diffraction and polarization conversion properties of plasmonic nanostructures, as well as propagation properties of surface plasmon polaritons on metasurfaces. It may also open up the way for lossless or amplifying propagation of optical waves in zero-index to high refractive index plasmonic metamaterials
One-loop effective potential for two-dimensional competing scalar order parameters
Creators: name: Lopes, Nei
name: Continentino, Mucio A.
name: Barci, Daniel G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the method of the effective potential of quantum field theory, we compute the quantum corrections to the phase diagram of systems with competing order parameters. This is specially useful to study metallic systems with competing antiferromagnetic and superconducting ground states. We focus on the two-dimensional (2d) case that is relevant for high Tc superconductors and heavy fermion systems. We consider two different types of couplings between the order parameters and obtain the modifications in the phase diagrams due to critical quantum fluctuations in these systems with conflicting orders. We consider z = 1, as well as, a dissipative z = 2 dynamics, typical of antiferromagnetic metals close to the magnetic quantum critical point. Our results, when compared to those in the 3d case, show that these depend strongly on both dimensionality and dynamics of the propagators describing the excitations of the possible ordered states. We find stable unconventional coexisting phases, as well as, the enhancement of the region of coexistence by fluctuations. These effects may be observed experimentally in many interesting cases of strongly correlated materials.
description: 7 pages and 4 figures. Improved version. Abstract rewritten. References updated. Two small sentences added in section III
Manufactories of Virtù: Classicism, Commerce, and Authorship in Georgian Britain, c. 1759-1800
Creators: von Preussen, Brigid
Publisher: name: Columbia University
Year: 2020
Subjects: History
Intellectual property
Eighteenth century
Art--Historiography
Classicism in art
Commerce
Arts--Authorship

description: This dissertation examines the confluence of ideas about classicism, commerce, and authorship in Britain in the final decades of the eighteenth century, when the commercial potential of classical forms and, conversely, the artistic potential of ‘mechanical’ forms of production both seemed greater, and yet more vulnerable, than they had ever been. While classical antiquity was a crucial source of artistic authority in this period, the emergence of a model of individual, inwardly generated, original authorship provided a different opportunity for commercial classicists to distinguish themselves in a crowded and competitive marketplace. In successive chapters of the dissertation, I discuss four makers whose works were produced in the context of competing models of authorship and authority: the architect, Robert Adam; the potter and manufacturer, Josiah Wedgwood; the painter and printmaker, Angelica Kauffman; and the sculptor and designer, John Flaxman. Each of these authors straddled the worlds of the mechanical and liberal arts, using a self-consciously classical artistic vocabulary in conjunction with highly commercial production and marketing strategies. They increasingly shaped and presented their works and style as their own proprietary creations, capitalising on emerging concepts of original genius and individual authorship: the very concepts that seem to be at odds both with academic classicism and with reproductive practices. Adam, Wedgwood, Kauffman, and Flaxman demonstrate how classicism, the idea of genius, and commercial, industrial modernity were mutually constitutive, resulting in the creation of artistic styles that are still associated with their authors today.
Περί τοξικών αερίων: (ασφυξιογόνα, κνιδωγόνα, πταρμογόνα, κλπ, μαχητικά αέρια)
Creators: name: (:Unkn) Unknown
Publisher: name: Τύποις Υπουργείου Στρατιωτικών
Year: 2024
Subjects: Chemical warfare

description: 63 σ.
Mansion: Inner Cosmologies, Thresholds, and Contacts
Creators: Diaz de Leon, Mario
Publisher: name: Columbia University
Year: 2013
Subjects: Music
Composition (Music)

description: This dissertation is in two parts. The first is the dissertation essay, which features an analysis of the work Mansion, and the second is the score to the Mansion Cycle, written for the International Contemporary Ensemble between 2009 and 2011. The score is included as an appendix, and consists of five works, which may be performed individually or as a complete cycle. In order of appearance, the works are Prism Path, Altar of Two Serpents, Mansion, Luciform, and Portals Before Dawn. The essay is an investigation of poetic and aesthetic concerns in my compositional practice, as well as an analysis of my composition Mansion, for two alto flutes, percussion, and pre-recorded electronics. Broadly describing the work as an "inner journey", I discuss the relationship of mythological themes to my music and titles, citing examples such as the labyrinth and the trope of the "central structure." I then relate these concepts to my use of form, citing other works in the cycle as points of comparison, and identifying ways in which recurring ideas are elaborated in my body of work. The historical context of my work in "mixed music" is briefly considered, alongside my aesthetic interest in the medium and my choice of musical tools. I then present a concise analysis of the discourse in Mansion, and describe how its language of "thresholds and contrasts" operates on a moment to moment level.
Εισαγωγή εις την φυσικήν του ατόμου
Creators: name: (:Unkn) Unknown
Publisher: name: Τυπογραφείον Ν. Δ.Φραντζεσκάκη
Year: 2024
Subjects: Physics
Atoms

description: xvi, 352 σ., πιν., σχ.
Operating a zero-discharge mine waste disposal facility in northern B.C. : the Huckleberry Mines experience
Creators: name: Johnson, Doug
name: Letient, Henri
Publisher: name: The University of British Columbia
Year: 2009

description: The Huckleberry Copper Mine site is located in west central British Columbia, approximately 85 km southwest of Houston. The mine site is at an elevation of about 1050 m and experiences on average 1100mm of precipitation annually. Production from the open pit copper mine began in the fall of 1997. The ore zones are being mined by conventional open pit operations, with a projected total 11-year life according to the latest mine plan. The mill throughput is a nominal 21,000 tonnes per day. The TMF-2 facility provides storage for the mine waste generated by the Huckleberry Mines operations. The facility was commissioned in October 1997. TMF-2 provides not only storage for the tailings but also disposal and permanent submergence of potentially acid generating (PAG) waste rock. TMF-2 also provides the source of process water. Despite the wet climate, TMF-2 is presently operated as a zero-discharge facility and provides the main source of process water for the mill. Only about 150 m³/hr of fresh water is added at the mill for specific process requirements (i.e., less than 10% of the process water). It is not until the impoundment is expanded to the east in the later years of the operations that excess water may need to be discharged. All analyses to date have shown water quality in the pond will be suitable for discharge. This paper explains how the system was initially conceptualised, how it is operated and how it will be configured on closure. Water management aspects of the operations are highlighted. The mass/water balance is an essential operating tool for planning annual raises and predicted flooding levels. The presentation will explain how the mass balance is updated as production data arid site-specific climate information becomes available.
Eperua Aublet 1775
Creators: name: Fortes, Elenice A.
name: Mansano, Vidal F.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Eperua

description: Eperua Aublet (1775: 369).
 Type:— Eperua falcata Aublet (1775: 369).
 Parivoa Aublet (1775: 756). Type:— Parivoa grandiflora Aublet (1775: 757) [≡ Eperua grandiflora (Aublet 1775: 757) Baillon (1870: 110)].
 Dimorpha Schreber, (1791: 493) nom. illeg. superfl.
 Panzera Willdenow (1799: 540) nom. illeg. superfl. Type:— Panzera falcata (Aublet 1775: 369) Willdenow (1799: 540) [≡ Eperua falcata Aublet (1775: 369)].
description: Published as part of Fortes, Elenice A. & Mansano, Vidal F., 2022, Untangling nomenclatural issues of some Amazonian trees of Eperua Aubl. (Leguminosae, Detarioideae, Detariae), pp. 189-198 in Phytotaxa 542 (2) on page 191, DOI: 10.11646/phytotaxa.542.2.6, http://zenodo.org/record/6417751
Vorticity alignment results for the three-dimensional Euler and Navier-Stokes equations
Creators: name: Galanti, B.
name: Gibbon, J. D.
name: Heritage, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We address the problem in Navier-Stokes isotropic turbulence of why the vorticity accumulates on thin sets such as quasi-one-dimensional tubes and quasi-two-dimensional sheets. Taking our motivation from the work of Ashurst, Kerstein, Kerr and Gibson, who observed that the vorticity vector ${\boldmath$ω$}$ aligns with the intermediate eigenvector of the strain matrix $S$, we study this problem in the context of both the three-dimensional Euler and Navier-Stokes equations using the variables $α= \hat{\boldmath$ξ$}\cdot S\hat{\boldmath$ξ$}$ and ${\boldmath$χ$} = \hat{\boldmath$ξ$}\times S\hat{\boldmath$ξ$}$ where $\hat{\boldmath$ξ$} = {\boldmath$ω$}/ω$. This introduces the dynamic angle $ϕ(x,t) = \arctan(\fracχα)$, which lies between ${\boldmath$ω$}$ and $S{\boldmath$ω$}$. For the Euler equations a closed set of differential equations for $α$ and ${\boldmath$χ$}$ is derived in terms of the Hessian matrix of the pressure $P = \{p_{,ij}\}$. For the Navier-Stokes equations, the Burgers vortex and shear layer solutions turn out to be the Lagrangian fixed point solutions of the equivalent $(α,{\boldmath$χ$})$ equations with a corresponding angle $ϕ= 0$. Under certain assumptions for more general flows it is shown that there is an attracting fixed point of the $(α,\bchi)$ equations which corresponds to positive vortex stretching and for which the cosine of the corresponding angle is close to unity. This indicates that near alignment is an attracting state of the system and is consistent with the formation of Burgers-like structures.
description: To appear in Nonlinearity Nov. 1997
Καύσιμοι και λιπαντικαί ύλαι: (Προελεύσις - έλεγχος - εφαρμογαί)
Creators: name: (:Unkn) Unknown
Publisher: name: Τυπογραφείον Παρασκευά Λεώνη
Year: 2024
Subjects: Fuel
Lubrication and lubricants

description: 294 σ.
Map Data Integration Technique with Large-Scale Fleet Telematics Data As Road Safety Surrogate Measures in The New York Metropolitan Area
Creators: Alrassy, Patrick
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Civil engineering
subject: FOS: Civil engineering
subject: Roads--Safety measures
subject: Traffic accidents--Research
subject: Traffic safety

description: Conventional road safety models rely on historical crash data. Locations with high crash injury statistics are given primary interventions. However, crash data are subject to errors, under-reportings, inaccuracy, and requires years to get updated, as crash events are infrequent and partly random(Gettman, Pu, Sayed and Shelby, 2008), as well as road conditions might change. With the advances in connected vehicle technologies, vehicles can be used as mobile sensors that collects driver behavior information. And if found correlated with the crash data, the driver behavior indices can act as safety surrogate measures. This dissertation focuses first on presenting an algorithm for mapping a vehicle sensing big dataset to a digital road network, in a metropolitan city, using the accompanied GPS trajectories. This is a challenging task since the data collected from the on-board-diagnostic port of the vehicle is sampled at a low ping rate, adding to that the excess of GPS noise in urban canyons, which makes the map matching problem even harder. Next, a spatial correlation study is presented. It investigates the spatial relationship between the driver behavior indices (i.e. speed parameters, hard braking and hard acceleration) and crashes (crash frequencies and crash rates, normalized with traffic volume). Highways and non-highway roads are bucketed separately. The other focus of this dissertation is developing an injury-prediction network screening model, that provide safety ranking of road intersections. Novel explanatory variables are derived from the telematics data, such as intersection traffic maneuvers and traffic conflicts. The non-linearity between the explanatory variables as well as the spatial dependency between road intersection is also tested.
KP-approach for non-symmetric short-range defects: resonant states and alloy bandstructure
Creators: name: Vasko, F. T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The short-range defect with reduced symmetry is studied in the framework of KP-approach taking into account a matrix structure of potential energy in the equations for envelope functions. The case of the narrow-gap semiconductor, with defects which are non-symmetric along the [001], [110], or [111] directions, is considered. Resonant state at a single defect is analyzed within the Koster-Slater approximation. The bandstructure modification of the alloy, formed by non-symmetric impurities, is discussed and a generalized virtual crystal approximation is introduced.
description: Extended version, 9 pages, 6 figures (EPS)
Η διαιτησία των εμπορικών και βιομηχανικών επιμελητηρίων: Νομοθεσία -Ν. Διατάγματα -Κανονισμός Κατάλογος Διαιτητών
Creators: name: (:Unkn) Unknown
Publisher: name: Α. Β. Πάσχα
Year: 2024
Subjects: Commercial law

description: 74 σ.
Canonical Quantization of Photons in a Rindler Wedge
Creators: name: Moretti, V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Photons and thermal photons are studied in the Rindler Wedge employing Feynman's gauge and canonical quantization. A Gupta-Bleuler-like formalism is explicitly implemented. Non thermal Wightman functions and related (Euclidean and Lorentzian) Green functions are explicitly calculated and their complex time analytic structure is analyzed using the Fulling-Ruijsenaars master function. The invariance of the advanced minus retarded fundamental solution is checked and a Ward identity discussed. It is suggested the KMS condition can be implemented to define thermal states also dealing with unphysical photons. Following this way, thermal Wightman functions and related (Euclidean and Lorentzian) Green functions are built up. Their analytic structure is examined employing a thermal master function as in the non thermal case and other corresponding properties are discussed. Some subtleties arising dealing with unphysical photons in presence of the Rindler conical singularity are pointed out. In particular, a family of thermal Wightman and Schwinger functions with the same physical content is proved to exist due to a remaining static gauge ambiguity. A photon version of Bisognano-Wichmann theorem is investigated in the case of photons propagating in the Rindler Wedge employing Wightman functions. Despite of the found ambiguity in defining Rindler Green functions, the coincidence of $(β= 2π)$-Rindler Wightman functions and Minkowski Wightman functions is proved dealing with test functions related to physical photons and Lorentz photons.
description: 32 pages, latex, no figures, revised version, no changes in the physical results, to be published in J. Math. Phys
Twisting of quantum differentials and the Planck scale Hopf algebra
Creators: name: Majid, Shahn
name: Oeckl, Robert
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show that the crossed modules and bicovariant different calculi on two Hopf algebras related by a cocycle twist are in 1-1 correspondence. In particular, for quantum groups which are cocycle deformation-quantisations of classical groups the calculi are obtained as deformation-quantisation of the classical ones. As an application, we classify all bicovariant differential calculi on the Planck scale Hopf algebra $\C[x]\bicross_{\hbar,\grav}\C[p]$. This is a quantum group which has an $\hbar\to 0$ limit as the functions on a classical but non-Abelian group and a $\grav\to 0$ limit as flat space quantum mechanics. We further study the noncommutative differential geometry and Fourier theory for this Hopf algebra as a toy model for Planck scale physics. The Fourier theory implements a T-duality like self-duality. The noncommutative geometry turns out to be singular when $\grav\to 0$ and is therefore not visible in flat space quantum mechanics alone.
description: 37 pages, LaTeX2e, uses AMS packages
Spectroscopic Assignments of the Excited $B$-Mesons
Creators: name: Godfrey, Stephen
name: Moats, Kenneth
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Excited $B$-mesons have been observed by the D0, CDF, LHCb and CMS experiments. We use the predictions of the relativized quark model to make quark model spectroscopic assignments for these states. We identify the $B_2^*(5747)$ and $B_1(5721)$ as the $B_2^*[1^3P_2]$ and $B_1[1P_1]$ states and the $B_{s2}^*(5840)$ and $B_{s1}(5830)$ as the $B_{s2}^*[1^3P_2]$ and $B_{s1}[1P_1]$ states. More information is needed to identify the $B_J(5970)$ and $B_J(5840)$ states and we suggest a number of measurements to make this identification: the determination of their $J^P$ quantum numbers and either confirming or ruling out their decays to the $Bπ$ final state. With the current information available we believe it most likely that the $B_J(5970)$ is the $B^*[2^3S_1]$ state, with the $B_J(5840)$ needing confirmation.
description: 7 pages, 5 tables, expt error for B_2^* decay ratio corrected, some minor word edits
Σχήματα εκ των μαθημάτων της τεχνολογίας εκρηκτικών υλών
Creators: name: (:Unkn) Unknown
Publisher: name: Εθνικόν Μετσόβιον Πολυτεχνείον
Year: 2024
Subjects: Explosives

description: 12 σ.
Energy Flows Modeling and Economic Evaluation of Watermelon Production in Fars Province of Iran
Creators: name: Rostami, Sajad
name: Lotfalian, Maryam
name: Samani, Bahram Hosseinzadeh
name: Ghasemi-Varnmkhasti, Mahdi
name: Rostami, Sajad
name: Lotfalian, Maryam
name: Samani, Bahram Hosseinzadeh
name: Ghasemi-Varnmkhasti, Mahdi
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: Resource /Energy Economics and Policy
subject: Artificial neural networks
subject: Conservation
subject: Energy use efficiency
subject: Mechanized

description: This study aimed to evaluate the efficiency of energy consumption and economic analysis of different watermelon cultivation systems in Fars Province of Iran. Watermelon production systems were classified into five systems, namely, custom tillage (group 1), conservation tillage (group 2), traditional planting (group3), semi mechanized planting (group 4), and mechanized planting (group 5). Data were collected from 317 watermelon producers from different parts of the province through face to face interviews. Multi-Layer Perceptron artificial neural networks were used to model the energy flows of watermelon production. The results showed that the greatest energy consumption belonged to mechanized planting system with the value of 81317.72 MJha-1 and with the productivity of 0.61 kgha-1 and energy use efficiency of 1.17. Clustering function with three inputs (human resources, machines and diesel fuel) showed that the difference between groups 2 and 4 is more than the other groups. The least energy consumption belonged to the conservative agriculture as78163.86 MJha-1 and the energy productivity and energy use efficiency about 0.64 kgha-1 and 1.22, respectively. The results of energy modeling showed that an ANN model with 9-10-1 structure was determined to be optimal for energy flow modeling of this system. Generally, it was concluded that the artificial neural network models can be applicable to prognosticate the energy flows of watermelon production. From an economic point of view, the least net profit belonged to traditional planting with the value of 2618.14$, and the most net return belonged to mechanized planting with the value of 2752.88$/ha.
Refined Kato inequalities and conformal weights in Riemannian geometry
Creators: name: Calderbank, David M. J.
name: Gauduchon, Paul
name: Herzlich, Marc
Publisher: name: arXiv
Year: 1999
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 53B21; 58G03

description: We establish refinements of the classical Kato inequality for sections of a vector bundle which lie in the kernel of a natural injectively elliptic first-order linear differential operator. Our main result is a general expression which gives the value of the constants appearing in the refined inequalities. These constants are shown to be optimal and are computed explicitly in most practical cases.
description: AMS-LaTeX, 36pp, 1 figure (region.eps)
$\mathcal{N}$-extended Maxwell supergravities as Chern-Simons theories in three spacetime dimensions
Creators: name: Concha, Patrick
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new class of three-dimensional $\mathcal{N}$-extended supergravity theories based on the $\mathcal{N}$-extended Maxwell superalgebra with central charges and $\mathfrak{so}(\mathcal{N})$ internal symmetry generators. The presence of $\mathfrak{so}(\mathcal{N})$ generators is required in order to define a non-degenerate invariant inner product. Such symmetry allows us to construct an alternative supergravity action without cosmological constant term. Interestingly, the new theories can be obtained as a flat limit of a $\mathcal{N}$-extended AdS-Lorentz supergravity theories enlarged with $\mathfrak{so}(\mathcal{N})$ gauge fields.
description: V2, 16 pages, reference added, accepted version in Physics Letters B
Servitization across countries and sectors: Evidence from World Input-Output Data
Creators: name: Friesenbichler, Klaus
name: Kügler, Agnes
Publisher: name: Zenodo
Year: 2021
Subjects: servitiziation
employment
productivity
WIOT
latent class analysis

description: This paper uses the supply tables underlying WIOT data to explore the provision of services by manufacturing. The service shares differ substantially across countries and sectors, while they remain largely stable over time. Findings from a latent class analysis reveal that servitization increase with labor productivity. The service intensities in the sectoral production mix of broadly defined manufacturing sectors are lower in countries with higher manufacturing shares. This holds for both catching‑up and developed economies. Yet, servitization is largely unrelated to productivity and employment growth. We therefore argue that the degree of servitization is contingent on and an attribute of the respective economic model in which a sector operates.
Eperua banaensis G. A. Romero & Aymard 2019
Creators: name: Fortes, Elenice A.
name: Mansano, Vidal F.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Eperua
Eperua banaensis

description: Eperua banaensis G.A.Romero & Aymard (2019: 341)
 Holotype: — VENEZUELA. Amazonas: Municipio Autónomo Maroa, cuenca del río San Miguel, alto caño Mee, bana sobre arena blanca al sur de la serranía de Cariche, 106 m, 2˚44’14”N 66˚20’7”W, 18 September 2011, G.A. Romero et al. 4079 (VEN not seen; isotypes GH not located, MO not seen, TFAV not seen).
description: Published as part of Fortes, Elenice A. & Mansano, Vidal F., 2022, Untangling nomenclatural issues of some Amazonian trees of Eperua Aubl. (Leguminosae, Detarioideae, Detariae), pp. 189-198 in Phytotaxa 542 (2) on page 191, DOI: 10.11646/phytotaxa.542.2.6, http://zenodo.org/record/6417751
O Espaço em Aristóteles: da bidimensionalidade do topos às seis diastaseis que definem os animais
Creators: name: Caruso, Francisco
name: de Araújo, Roberto Moreira Xavier
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Within the general discussion of space and its dimensionality, Aristotle's position is of the greatest relevance, as one will have the opportunity to argue and discuss in this article.
description: 18 pp, in Portuguese
Mining in Zambia : environmental management
Creators: name: Dixon, B. M. (Brenda M.), 1952-
name: Tisch, Bryan
name: Kangamba, Gerhad
Publisher: name: The University of British Columbia
Year: 2009

description: The nationalized mining sector in Zambia has undergone virtually complete privatization since January 2000. Immediately prior to this, Zambian mines, while blessed with substantial copper and cobalt deposits, had been significantly undercapitalized1, with little upgrading or funding for environmental protection. In the pre and post war era, legislation (in the then Northern Rhodesia) had been passed, due to the paramount concerns of the war and post war reconstruction efforts, that exempted mining companies from prosecution related to air quality- issues. This legislation persisted to the mid-1990s. Currently, air quality in areas of the Copperbelt Province and the aquatic habitat in the Kafue River, a tributary to the Zambezi River, are two of the more significant mining environment issues in Zambia. With the onset of privatization, new investors in the form of multinational mining companies, have adopted their corporate environmental policies in Zambia, which has placed increased pressure on the Environmental Program of the Zambian Mines Safely Department (MSD) of the Ministry of Mines and Minerals Development to review development plans as well as monitor and enforce environmental regulations related to mining. The Mining and Mineral Sciences Laboratories (MMSL-CANMET) of Natural Resources Canada under contract with the Canadian International Development Agency (CIDA), are working with MSD to accelerate the development of an increasingly functional environmental inspection program for mining, using Canadian experience and consulting expertise to facilitate this process. With a considerable Canadian mining presence already established in Zambia, it is anticipated that the project will help to establish a regulatory regime that will benefit new and existing Canadian mining companies in Zambia.
Additional file 2: of Quality of basic emergency obstetric and newborn care (BEmONC) services from patientsâ perspective in Adigrat town, Eastern zone of Tigray, Ethiopia. 2017: a cross sectional study
Creators: name: Betell Berhane
name: Haftom Gebrehiwot
name: Weldemariam, Solomon
name: Berhane Fisseha
name: Kahsay, Samson
name: Gebremariam, Alem
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Tigrigna questionnaire, The English version questionnaire was later translated to the local language Tigrigna. (DOCX 31 kb)
title: Historische Studien aus dem Pharmakologischen Institute der Kaiserlichen Universität Dorpat Band 1. 1889 - 2. 1890
Creators: name: :None
Publisher: name: Tausch & Grosse
Year: 1890
Subjects: subject: 615

description: Historische Studien aus dem Pharmakologischen Institute der Kaiserlichen Universität Dorpat, vol. 1889/1890
Unified description of quantum affine (super)algebras U_q(A_{1}^{(1)}) and U_q(C(2)^{(2)})
Creators: name: Khoroshkin, S. M.
name: Lukierski, J.
name: Tolstoy, V. N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show that the quantum affine algebra U_{q}(A_{1}^{(1)}) and the quantum affine superalgebra U_{q}(C(2)^{(2)}) admit unified description. The difference between them consists in the phase factor which is equal to 1 for U_{q}(A_{1}^{(1)}) and is equal to -1 for U_{q}(C(2)^{(2)}). We present such a description for the construction of Cartan-Weyl generators and their commutation relations, as well for the universal R-matrices.
description: 16 pages, LaTeX. Talk by V.N. Tolstoy at XIV-th Max Born Symposium "New Symmetries and Integrable Models", Karpacz, September 1999; in press in Proceedings, Ed. World Scientific, 2000
The excavation of a medieval site at Muddleswood, near Hurstpierpoint, West Sussex
Creators: name: Butler, Chris
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 132, 101-114
description: A field survey carried out in advance of the A23 road improvements discovered a previously unknown medieval house platform. Sampling, and then larger-scale excavations during 1987 and 1989 revealed evidence (or an early medieval settlement. Evidence (or prehistoric activity and (or a 19th-century military encampment was also found. (Includes microfiche)