cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Selective Fossilization Hypothesis: A Revitalization of the Construct of Markedness in Second Language Acquisition
Creators: name: Finneran, Rosette Bambino
Publisher: name: Columbia University
Year: 2009
Subjects: Applied linguistics
Second language acquisition--Research
Markedness (Linguistics)
Fossilization (Linguistics)

description: With the Selective Fossilization Hypothesis (SFH), Han (2009) cites the synergy of first language (L1) markedness and second language (L2) input robustness as a determinant of selective fossilization and, in doing so, returns the construct of markedness to the forefront of second language acquisition (SLA) research and theory. With the SFH, Han offers a principled account of the differential consequences for L2 learning (Han, 2008, p. 6), and its explanatory and predictive qualities hold great promise for the field. Nevertheless, Han’s unique approach to markedness lays open the possibility for misunderstanding, particularly for those who are accustomed to viewing markedness in SLA through the lens of linguistic universals. Moreover, when one considers that markedness has long been a problematic term in linguistics, with “many different approaches defin[ing] markedness in different ways, apply[ing] it to different domains, and integrat[ing] it into different approaches” (Battistella, 1990, p. 5), the possibility for misunderstanding looms even larger. For these reasons, it might be helpful to take a retrospective look at markedness for the purposes of contextualizing the construct and preempting any potential misapprehensions of its role in the SFH.
Momentum Regularity and Stability of the Relativistic Vlasov-Maxwell-Boltzmann System
Creators: name: Guo, Yan
name: Strain, Robert M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In the study of solutions to the relativistic Boltzmann equation, their regularity with respect to the momentum variables has been an outstanding question, even local in time, due to the initially unexpected growth in the post-collisional momentum variables which was discovered in 1991 by Glassey & Strauss \cite{MR1105532}. We establish momentum regularity within energy spaces via a new splitting technique and interplay between the Glassey-Strauss frame and the center of mass frame of the relativistic collision operator. In a periodic box, these new momentum regularity estimates lead to a proof of global existence of classical solutions to the two-species relativistic Vlasov-Boltzmann-Maxwell system for charged particles near Maxwellian with hard ball interaction.
description: 23 pages; made revisions which were suggested by the referee; to appear in Comm. Math. Phys
Symmetry Dependent Scattering by Minority Interface Resonance States in Single-crystal Magnetic Tunnel Junctions
Creators: name: Lu, Y.
name: Yang, H. X.
name: Tiusan, C.
name: Hehn, M.
name: Chshiev, M.
name: Bellouard, C.
name: Kierren, B.
name: Lengaigne, G.
name: Duluard, A.
name: Lacour, D.
name: Montaigne, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Symmetry dependent scattering effect by minority interface resonance states (IRS) has been evidenced in full-epitaxial Fe/MgO/Fe magnetic tunnel junctions (MTJs). Two types of samples with and without carbon doped bottom Fe/MgO interface were fabricated to represent two different types of IRS in the minority channel in the vicinity of the Fermi level. By analysis of the first- principles calculated local density of states (LDOS) and the temperature dependence of conductance in parallel configuration at low bias, we show that the IRS in the carbon free sample is dominated by the delta5 symmetry. This has a major contribution on the majority deltai to delta5 channel scattering and explains the enhancement of the delta5 conductance in the parallel configuration at low temperature. Furthermore, the spectral composition of the IRS in the carbon doped interface is found to be dominated by the delta1 symmetry, which is responsible for the suppression of delta5 channel in the parallel conductance.
description: We recently find that the explication in this paper is not correct. We are continuing to study the mechanism
Where is the Indigenous law in state based transitional justice processes?
Creators: name: Slakov, Karen
Publisher: name: University of British Columbia
Year: 2017

description: This paper discusses the impact of state engagement with Indigenous legal orders through transitional justice mechanisms such as the Canadian Truth and Reconciliation Commission. My aim is to contribute to an understanding of the potential implications of the power imbalances caused by settler colonialism on interactions between state and Indigenous legal systems. This thesis builds on the Fanonian theorization of culture under settler colonialism by extending his analysis to Indigenous legal systems impacted by settler colonialism. In the case of the Canadian Truth and Reconciliation Commission, the inclusion of Indigenous legal traditions in the Commission’s work has failed to create space for Indigenous law as a set of viable alternatives to state law. Instead, longstanding settler depictions of Indigenous law as static and primitive are reinforced and the dominant position of state law in relation to Indigenous law is reinscribed in the collective settler imagination. Rather than create space for an Indigenous legal resurgence that would strengthen the legal authority of Indigenous law, the Commission’s engagement with Indigenous law ultimately served to affirm the supremacy of state law over Indigenous law and erase those aspects of Indigenous law that might prove threatening to the established settler colonial state.
Sutured Floer homology, sutured TQFT and non-commutative QFT
Creators: name: Mathews, Daniel V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 57M50 (Primary) 57R56, 57R58, 57M27 (Secondary)

description: We define a "sutured topological quantum field theory", motivated by the study of sutured Floer homology of product 3-manifolds, and contact elements. We study a rich algebraic structure of suture elements in sutured TQFT, showing that it corresponds to contact elements in sutured Floer homology. We use this approach to make computations of contact elements in sutured Floer homology over $\Z$ of sutured manifolds $(D^2 \times S^1, F \times S^1)$ where $F$ is finite. This generalises previous results of the author over $\Z_2$ coefficients. Our approach elaborates upon the quantum field theoretic aspects of sutured Floer homology, building a non-commutative Fock space, together with a bilinear form deriving from a certain combinatorial partial order; we show that the sutured TQFT of discs is isomorphic to this Fock space.
description: v.2: 49 pages, 13 figures. Improved and expanded exposition, some minor corrections. Sections on torsion, annuli, and tori moved to a separate paper
Bounding the scalar dissipation scale for mixing flows in the presence of sources
Creators: name: Alexakis, Alexandros
name: Tzella, Alexandra
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the mixing properties of scalars stirred by spatially smooth, divergence-free flows and maintained by a steady source-sink distribution. We focus on the spatial variation of the scalar field, described by the {\it dissipation wavenumber}, $k_d$, that we define as a function of the mean variance of the scalar and its gradient. We derive a set of upper bounds that for large Péclet number ($\Pe\gg1$) yield four distinct regimes for the scaling behavior of $k_d$, one of which corresponds to the Batchelor regime. The transition between these regimes is controlled by the value of $\Pe$ and the ratio $ρ=\ell_u/\ell_s$, where $\ell_u$ and $\ell_s$ are respectively, the characteristic lengthscales of the velocity and source fields. A fifth regime is revealed by homogenization theory. These regimes reflect the balance between different processes: scalar injection, molecular diffusion, stirring and bulk transport from the sources to the sinks. We verify the relevance of these bounds by numerical simulations for a {two-dimensional, chaotically mixing} example flow and discuss their relation to previous bounds. Finally, we note some implications for three dimensional turbulent flows.
Observational Study of Recurrent Jets: Evolution of Magnetic Flux, Current, and Helicity
Creators: name: Zhou, Chang
name: Guo, Yang
name: Chen, Guoyin
name: Qiu, Ye
name: Ding, M. D.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We observed three recurrent blowout jets in an active regio with Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO). Using Helioseismic Magnetic Imager (HMI) data. We found that the magnetic flux of an emerging negative pole increases steadily before declining just as the jets erupt. Certain physical quantities, like the total unsigned vertical current, align with the periodicity of the jets. The differential affine velocity of the vector magnetograms reveals strong shear around the negative pole. The Doppler velocity map, calculated from the H$α$ spectra observed by the Chinese H$α$ Solar Explorer (CHASE), shows upflows with large initial velocity before it can be observed by AIA. The magnetic field derived from the nonlinear force-free field (NLFFF) model suggests a topology akin to fan-spine structure, consistent with AIA images. We calculated the evolution of volumetric helicity ratio using the NLFFF model and found its phase aligns with the jet flux in AIA 171 Å. These results suggest that recurrent jets may be triggered by the accumulation and release of energy and helicity, driven by emergence, shearing and cancellation of photospheric magnetic field.
description: 15 pages, 8figures
A simple model for high-energy nucleon-nucleon elastic diffraction and exclusive diffractive electroproduction of vector mesons on protons
Creators: name: Godizov, A. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The processes of exclusive diffractive scattering $p+p\to p+p$, $\bar p+p\to\bar p+p$, and $γ^*+p\to V+p$ at high energies are considered in the framework of a unified Regge-eikonal model with a very simple reggeon structure of the eikonal. It is demonstrated that the pomeron trajectory is universal in all reactions and having intercept about 1.31 which could be exctracted explicitly from the data on the proton structure function $F_2(x,Q^2)$. The predictions for the proton-proton cross-sections at LHC energies are given.
description: 18 pages, 23 figures
Gluon saturation and entropy production in proton proton collisions
Creators: name: Kutak, Krzysztof
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study properties of high energy factorisable gluon densities focusing on saturation effects. In particular we show that the property of saturation of unintegrated gluon density allows for introduction of thermodynamical entropy associated with production of gluons. This is due to the observation that saturation scale acts like a mass of a gluon which related with temperature via thermodynamical relations allows for calculations of entropy. We also show that obtained entropy behaves like multiplicity of produced gluons.
description: Section 4 rewritten. Accepted for publication in Physics Letters B
An Amazon of the Avant-Garde:  Bronislava Nijinska in Revolutionary Russia
Creators: name: Garafola, Lynn
Publisher: name: Columbia University
Year: 2011
Subjects: Dance
Ballet
Choreographers
Revolution (Soviet Union : 1917-1921)

description: This article is a study of choreographer Bronislava Nijinska's artistic transformation during the Russian Revolution and its aftermath, the earliest abstract works she choreographed, and the treatises in which she sought to define the essence of dance and to articulate her vision of a contemporary approach to ballet composition and training.  The research is based on primary sources, chiefly materials in the Bronislava Nijinska Collection, Music Division, Library of Congress.
Toward advances in data acquisition and analysis for quantitative multi-contrast magnetic resonance imaging
Creators: name: Slavkova, Kalina Polet
name: 0000-0003-4311-2355
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: MRI physics
Cancer imaging
Image reconstruction
Deep learning
Untrained methods

description: Quantitative magnetic resonance imaging for cancer is an invaluable noninvasive imaging tool with superior tissue contrast and greater specificity for disease than other imaging modalities; however, MRI is costly and lengthy, making it difficult to deploy quantitative imaging techniques alongside existing clinical protocols. Moreover, radiologists require high spatial resolution images for anatomical interpretation, which is not often reconcilable with the need for high temporal resolution in dynamic quantitative imaging schemes. The purpose of this dissertation is to develop novel analysis and acquisition methods that support fast quantitative imaging for substantiating clinical protocols without necessitating significantly longer scan times, thereby providing opportunity for clinical deployment of quantitative MRI protocols. This purpose is achieved through three distinct approaches. First, we take high temporal resolution dynamic contrast-enhanced MRI data from women with locally advanced breast cancer and retrospectively abbreviate the data to varying degrees. We subsequently analyze the full-length and abbreviated datasets with perfusion models and assess the agreement between the quantitative parameters from the full-length and abbreviated analyses, showing that scans can be shortened by up to 58%. Second, using fully sampled variable-flip angle raw data of the brain from healthy volunteers, we retrospectively accelerate the raw data by 8- to 36-fold and apply an untrained deep learning method with physics-based regularization to reconstruct the anatomical images while simultaneously computing the relevant quantitative parameter map. We achieve images with high spatial resolution and quantitative maps that agree strongly with the quantitative information computed from the fully sampled data. Finally, with the purpose of noninvasively describing tumor heterogeneity, we identify three distinct tumor habitats by clustering multiparametric quantitative information from diffusion-weighted and dynamic contrast-enhanced MRI data from a murine model of glioma collected at multiple imaging visits. We subsequently model the growth of the tumor habitats over time with a system of ordinary differential equations, thereby establishing a computationally fast pipeline for noninvasive tumor habitat growth prediction. Overall, these approaches yield novel methods that enable fast acquisition of quantitative MRI data as well as pipelines for retrospective abbreviation and analysis of existing quantitative MRI data.
Identifying Quantum Topological Phases Through Statistical Correlation
Creators: name: Wang, Hao
name: Bauer, B.
name: Troyer, M.
name: Scarola, V. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically examine the use of a statistical distance measure, the indistinguishability, as a generic tool for the identification of topological order. We apply this measure to the toric code and two fractional quantum Hall models. We find that topologically ordered states can be identified with the indistinguishability for both models. Calculations with the indistinguishability also underscore a key distinction between symmetries that underlie topological order in the toric code and quantum Hall models.
description: 7 pages, 6 figures. Revised section III and added more references
Enhancement of proton acceleration from focusing targets
Creators: name: Smith, Herbie Lamar
name: 0000-0002-2310-1424
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Target normal sheath acceleration
TNSA
Proton acceleration
High energy density physics
Laser-plasma interactions

description: Particle acceleration from laser-plasma interactions has been a vibrant area of research since the discovery of electron and proton beams emitted from high intensity laser-plasma interactions in the 1980s. Since then, a large body of work has developed in pursuit of understanding and controlling the mechanisms that generate these particle beams, as well as the beams themselves. In particular, proton beams have a rich set of applications in the fields of medicine, fusion energy, and fundamental physics that motivates their study. In this thesis, we first discuss the laser technology that has enabled this research. We follow this with detailed information on the design and development of a 100 TW power upgrade to the graduate student-run GHOST laser system for the purposes of conducting repetition-rated laser-plasma experiments. We then outline the physics that drives particle acceleration during the interactions of high intensity lasers and solid targets with a particular focus on target normal sheath acceleration, the most widely studied laser-plasma particle acceleration mechanism. Finally, we describe experiments conducted on the Texas Petawatt Laser system to test an approach to enhance the yield, peak energy, and beam characteristics of proton beams generated by laser-plasma interactions with the use of focusing targets.
Kinematics of deep inelastic scattering in leading order of the covariant approach
Creators: name: Zavada, Petr
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the kinematics of deep inelastic scattering corresponding to the rotationally symmetric distribution of quark momenta in the nucleon rest frame. It is shown that rotational symmetry together with Lorentz invariance can in leading order impose constraints on the quark intrinsic momenta. Obtained constraints are discussed and compared with the available experimental data.
description: 4 pages, 2 figures, the version 2 is accepted to Phys.Rev.D
TeV scale Left Right Symmetry with spontaneous D-parity breaking
Creators: name: Borah, Debasish
name: Patra, Sudhanwa
name: Sarkar, Utpal
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The different scenarios of spontaneous breaking of D-parity have been studied in both non-supersymmetric and supersymmetric version of the left-right symmetric models(LRSM). We explore the possibility of a TeV scale $SU(2)_R$ breaking scale $M_R$ and hence TeV scale right handed neutrinos from both minimization of the scalar potential as well as the coupling constant unification point of view. We show that although minimization of the scalar potential allows the possibility of a TeV scale $M_R$ and tiny neutrino masses in LRSM with spontaneous D-parity breaking, the gauge coupling unification at a high scale $\sim 10^{16}$ GeV does not favour a TeV scale symmetry breaking except in the supersymmetric left-right (SUSYLR) model with Higgs doublet and bidoublet. The phenomenology of neutrino mass is also discussed.
description: 26 pages, 3 figures, Journal Version
Eternal inflation and a thermodynamic treatment of Einstein's equations
Creators: name: Ghersi, Jose Tomas Galvez
name: Geshnizjani, Ghazal
name: Piazza, Federico
name: Shandera, Sarah
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In pursuing the intriguing resemblance of the Einstein equations to thermodynamic equations, most sharply seen in systems possessing horizons, we suggest that eternal inflation of the stochastic type may be a fruitful phenomenon to explore. We develop a thermodynamic first law for quasi-de Sitter space, valid on the horizon of a single observer's Hubble patch and explore consistancy with previous proposals for horizons of various types in dynamic and static situations. We use this framework to demonstrate that for the local observer fluctuations of the type necessary for stochastic eternal inflation fall within the regime where the thermodynamic approach is believed to apply. This scenario is interesting because of suggestive parallels to black hole evaporation.
description: 1 figure, matches the published version in JCAP
The Institution as Context
Creators: name: Tarpey, Tara E.
Publisher: name: Columbia University
Year: 2010
Subjects: Applied linguistics
Context (Linguistics)
Discourse analysis
Peer teaching

description: Over the past two decades, institutional discourse has become an area of great import in the field of discourse analysis. Institutionality is rife in everyday interactions, occurring in workplaces, homes, and schools, as well as both face-to-face and telephone or virtual interactions (Drew & . Heritage, 1992). Essentially, whenever an individual represents an institution, institutionality may color the discourse. In their seminal book, Talk at Work, Drew and Heritage (1992) define institutional talk as orienting to goals, constraining contributions, and shaping inferences. Following Drew and Heritage‟s framework, Waring (2005) identifies peer tutoring as a “privileged site for observing” institutional interactions, as “doing tutoring” is subject to goal orientation, constraints on allowable contributions, and unique inferential patterns (pp. 141-142). This piece focuses on one peer tutoring sequence to exemplify both how and why institutionality is oriented to in talk.
Der Erwerb fremdsprachiger akademischer Lesekompetenz. Eine Educational Design Research- Studie zur Lesekompetenz in der L2 Deutsch internationaler Studierender der Geistes- und Sozialwissenschaften
Creators: name: Introna, Silvia
Publisher: name: Universität Bielefeld
Year: 2021
Subjects: subject: 430

description: Trotz der grundlegenden Bedeutung akademischer Lesekompetenz an deutschen Universitäten wird sie im Studium nur vorausgesetzt und nicht explizit thematisiert oder vermittelt. Auch internationale Studierende sind von dieser defizitären Situation betroffen, was besonders überraschend ist, sowohl aufgrund der spezifischen Schwierigkeiten, die ihnen das Lesen deutscher wissenschaftlicher Texte bereiten kann, als auch aufgrund der Tatsache, dass sie darauf nicht vorbereitet werden. Desiderata lassen sich nicht nur hinsichtlich der Förderung der Schlüsselkompetenz des Lesens im universitären Kontext feststellen. Grundlegende Fragen, wie z.B. was fremdsprachige akademische Lesekompetenz (FALK) bedeutet, sind bisher kaum diskutiert worden. Vor diesem Hintergrund leistet die vorliegende Arbeit einen ersten Beitrag zur Erforschung der akademischen Lesekompetenz in der L2 Deutsch internationaler Studierender der Geistes- und Sozialwissenschaften. Es handelt sich um eine Educational Design Research-Studie, in der Empirie, Praxis und Theorie ständig verknüpft sind. Durch die Entwicklung und die mehrmalige Erprobung, Evaluation und Revision einer didaktischen Maßnahme zur Förderung der akademischen Lesekompetenz internationaler Studierender werden empirische Daten in authentischen Unterrichtssituationen gewonnen, welche wiederum zu einem theoretischen Verständnis des FALK-Erwerbs führen.
On the High Energy Emission of the Short GRB 090510
Creators: name: He, Hao-Ning
name: Wu, Xue-Feng
name: Toma, Kenji
name: Wang, Xiang-Yu
name: Meszaros, Peter
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Long-lived high-energy (>100MeV) emission, a common feature of most Fermi-LAT detected gamma-ray burst, is detected up to \sim 10^2 s in the short GRB 090510. We study the origin of this long-lived high-energy emission, using broad-band observations including X-ray and optical data. We confirm that the late > 100 MeV, X-ray and optical emission can be naturally explained via synchrotron emission from an adiabatic forward shock propagating into a homogeneous ambient medium with low number density. The Klein-Nishina effects are found to be significant, and effects due to jet spreading and magnetic field amplification in the shock appear to be required. Under the constraints from the low-energy observations, the adiabatic forward shock synchrotron emission is consistent with the later-time (t>2s) high-energy emission, but falls below the early-time (t < 2s) high energy emission. Thus we argue that an extra high energy component is needed at early times. A standard reverse shock origin is found to be inconsistent with this extra component. Therefore, we attribute the early part of the high-energy emission (t< 2s) to the prompt component, and the long-lived high energy emission (t>2s) to the adiabatic forward shock synchrotron afterglow radiation. This avoids the requirement for an extremely high initial Lorentz factor.
description: 29 pages, 2 figures; Accepted for publication in ApJ
A Cinematic Imagination: Josef Wirsching and the Bombay Talkies
Creators: name: Mukherjee, Debashree
Publisher: name: Columbia University
Year: 2018
Subjects: Motion pictures
Motion pictures, Indic
Motion picture industry
Cinematography

description: This essay discusses the career and craft of Josef Wirsching, a German cinematographer who migrated to India in the 1930s and made a deep impact on the aesthetic form and production techniques of Bombay cinema. It was written as a companion piece to the first public exhibition of production stills and publicity photographs from the Wirsching family archive. These photographs give us unprecedented access to the aesthetic decisions, creative communities, and international exchanges that were vital to filmmaking in late colonial India.
Family as Context
Creators: name: Johnson, Rebekah
name: Delprete, Donna
Publisher: name: Columbia University
Year: 2010
Subjects: Applied linguistics
Context (Linguistics)
Families
Discourse analysis

description: Within the last decade, discourse analysts have delved into the private sphere to examine the institution of the family. Analysts have noted how the family is a fertile research site and how investigation of family interaction gives, among other things, crucial insight into the intricate relational struggles between parents and their children (e.g., Dedaic, 2001; Sarangi, 2006; Tannen, Kendall, & Gordon, 2007). Considered a micro institution, the family provides the dayto-day context in which relations of power and connection are enacted, and human bonds are either severed or forged. In this respect, it is a key social institution, one “that mediates the individual and the social, with identifiable structures, functions, and hierarchies” (Sarangi, 2006, p. 403). Within this context, individuals also share a history, having been engaged with one another for a relatively long period of time. As a result of this long and extended contact, interaction among family members runs a gamut of emotions and behaviors. There are moments of tension and tenderness, assertions of autonomy and acts of resistance, and attempts by children to individuate from parents while still retaining some interpersonal attachment to the family as a whole. A discursive analysis of family interaction can provide insight into how family members negotiate these behaviors and attempt to maintain some familial harmony. Despite a concerted effort to “keep the peace,” any seemingly innocuous remark, request, or rumination by one family member (typically a parent) may evoke a past event or action that another family member (often a child) wishes to keep in the hinterland of his/her mind. The (re)linking of this prior interaction to the present context—known as intertextuality (c.f. Gordon, 2009)—also offers an opportunity to relive any feelings or tensions that may have accompanied it the first time. Hence, a family’s prior interaction clearly (re)shapes and (re)contextualizes their present interaction.
Explicit Singular Viscosity Solutions of the Aronsson Equation
Creators: name: Katzourakis, Nikolaos I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We establish that when n >= 2 and H is a C^1 Hamiltonian such that some level set contains a line segment, the Aronsson equation admits explicit entire viscosity solutions. They are superpositions of a linear part plus a Lipschitz continuous everywhere differentiable singular part which in general is non-C^1 and nowhere twice differentiable. In particular, we supplement the C^1 regularity result of Wang and Yu by deducing that strict level convexity is necessary for C^1 regularity of solutions.
description: 4 pages, 1 figure, new simplified proof
Synchrotron radiation by fast fermions in heavy-ion collisions
Creators: name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study the synchrotron radiation of gluons by fast quarks in strong magnetic field produced by colliding relativistic heavy-ions. We argue that due to high electric conductivity of plasma, time variation of the magnetic field is slow and estimate its relaxation time. We calculate the energy loss due to synchrotron radiation of gluons by fast quarks. We find that the typical energy loss per unit length for a light quark at LHC is a few GeV per fm. This effect alone predicts quenching of jets with $p_\bot$ up to about 20 GeV. We also show that the spin-flip transition effect accompanying the synchrotron radiation leads to a strong polarization of quarks and leptons with respect to the direction of the magnetic field. Observation of the lepton polarization may provide a direct evidence of existence of strong magnetic field in heavy-ion collisions.
description: 10 pages, 6 figures; v3: estimate of the relaxation time of magnetic field is revised, acknowledgment added
NFDI4Immuno - Letter of Intent
Creators: name: Busse, Christian E.
name: Babel, Nina
name: Chang, Hyun-Dong
name: Dorhoi, Anca
name: Eugster, Anne
name: Hummel, Michael
name: Kammerer, Robert
name: Küppers, Ralf
name: Meyer-Hermann, Michael
name: Nahnsen, Sven
name: Schetelig, Johannes
name: Schwab, Nicholas
name: Bröker, Barbara
name: Eckert, Cornelia
name: Imkeller, Katharina
name: Meissner, Felix
name: Siewert, Katherina
name: Zehn, Dietmar
Publisher: name: Zenodo
Year: 2021
Subjects: subject: AIRR
subject: NFDI
subject: Immunology
subject: FOS: Clinical medicine

description: Binding Letter of Intent of the NFDI4Immuno consortium initiative for the German National Research Data Infrastructure (NFDI) Program.
Layered Contexts
Creators: name: Creider, Sarah
Publisher: name: Columbia University
Year: 2010
Subjects: Applied linguistics
Context (Linguistics)
Teachers
Conversation analysis

description: This brief essay focuses on a single turn in an interchange between an adult educator (Anna), and a five-year old girl (Claire), who are playing math games together. Using multiple layers of contextual information, the paper shows how much interactional work can be involved in teacher talk, even in an informal setting. First, conversation analysis (CA) is used to analyze the turn in question, as well as its sequential context. Next, data from a participant interview is described within the context of Goffman‟s (1974) theories of frames and footing. Thus, four layers of context—turn, sequence, participant interview, and frames—work together to help describe this pedagogical interaction.
Classroom as Context: Procedural Consequentiality in a Secondary English Classroom
Creators: name: Box, Catherine DiFelice
Publisher: name: Columbia University
Year: 2010
Subjects: Classroom environment
Context (Linguistics)
Applied linguistics
Conversation analysis
English literature

description: Discussions abound concerning the role of context when examining data from a conversation analytic (CA) framework. Lively debates concerning the place of gender, class, and other cultural constructs in CA (e.g. Schegloff, 1997; Wetherall, 1998) have led some to conclude that nothing other than the talk itself can be used when practicing CA. However, Schegloff (1991, 1992) has noted at least two instances when the relevance of contextual features can be shown. One of those notions, termed procedural consequentiality (Schegloff, 1992), denotes that a certain aspect of context affects how the interaction unfolds. This brief discussion will analyze such a spate of talk, where the very direction of the conversation is contingent on the fact that a teacher is interacting with students.
Vector-Valued Jack Polynomials from Scratch
Creators: name: Dunkl, Charles F.
name: Luque, Jean-Gabriel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 05E05, 16T25, 05C25, 33C80

description: Vector-valued Jack polynomials associated to the symmetric group ${\mathfrak S}_N$ are polynomials with multiplicities in an irreducible module of ${\mathfrak S}_N$ and which are simultaneous eigenfunctions of the Cherednik-Dunkl operators with some additional properties concerning the leading monomial. These polynomials were introduced by Griffeth in the general setting of the complex reflections groups $G(r,p,N)$ and studied by one of the authors (C. Dunkl) in the specialization $r=p=1$ (i.e. for the symmetric group). By adapting a construction due to Lascoux, we describe an algorithm allowing us to compute explicitly the Jack polynomials following a Yang-Baxter graph. We recover some properties already studied by C. Dunkl and restate them in terms of graphs together with additional new results. In particular, we investigate normalization, symmetrization and antisymmetrization, polynomials with minimal degree, restriction etc. We give also a shifted version of the construction and we discuss vanishing properties of the associated polynomials.
Teacher Knowledge as Context
Creators: name: Fagan, Drew S.
Publisher: name: Columbia University
Year: 2010
Subjects: Applied linguistics
Context (Linguistics)
Teachers
Classroom environment
Language and languages--Study and teaching

description: Research has shown that teachers bring into the classroom multiple domains of knowledge, including disciplinary knowledge, pedagogical content knowledge (i.e., the process of relaying disciplinary knowledge to students), knowledge of how learning occurs, knowledge of students’ learning styles, knowledge of curricular and contextual demands, their own personal practical knowledge (e.g., experiences in the classroom as a student; cultural norms surrounding the role of a teacher), and knowledge of how to reflect on all of these domains in order to adapt one’s teaching accordingly. This piece will briefly explain and demonstrate the importance in examining teacher knowledge as context within classroom discourse analysis in order to enrich the understanding of what is happening in classroom interaction and explain why it is so.
Muffins Cakes – The Perfect Choice to Make Any Occasion Memorable
Creators: name: Admin
Publisher: name: Zenodo
Year: 2019
Subjects: cake shop in vadodara, delicious cake, Egg less Cake, Online Cake Delivery

description: Sweet delicacies are souring up, up and away!

Did you like what we mention here about the subject matter?

Well, to be very frank and truthful, delicacies such as cakes, pastries and chocolate cookies can never be imperfect for sure.
Un nuovo ibrido di Ophrys in onore di un amico scomparso: Ophrys ×stivii Romolini & Soca
Creators: name: Romieg Soca
Publisher: name: Zenodo
Year: 2015
Subjects: Ophrys
Ophrys ×stivii

description: Romolini R. & Soca R., 2015. Un nuovo ibrido di Ophrys in onore di un amico scomparso: Ophrys ×stivii Romolini & Soca. GIROS Orchidee Spontanee d'Europa 58(1): 155-159.
Text and Context: The Role of Context in Discourse Analysis
Creators: name: Tarpey, Tara
name: Delprete, Donna
Publisher: name: Columbia University
Year: 2010
Subjects: Applied linguistics
Discourse analysis
Context (Linguistics)
Language and languages

description: For discourse analysts, the notion of context is a key factor that differentiates approaches to data analysis. While most approaches involve a micro-level analysis of stretches of text or talk, it is the “breadth of contexts in which utterances are considered” (Gordon, 2009, p. 192) that varies among approaches. What precisely constitutes context (i.e., whether it is limited to the locally produced utterances or is extended to include the world outside of the text or talk), and how much (or how little) context should be considered in the analysis has generated some hearty debates (see Billig, 1999a, 1999b; Schegloff, 1997; Tracy, 2010). The aim of this forum is neither to rehash these debates nor to argue in favor of one perspective over another. Instead, this forum will further broaden the already broadly defined notion of context by viewing it from multiple dimensions. This edition of the forum comprises six commentaries on the role of context in discourse analysis by members of Dr. Hansun Zhang Waring’s Spring 2010 Doctoral Seminar in Applied Linguistics at Teachers College, Columbia University. These contributions span a breadth of contexts, from a family dinnertime conversation to a classroom setting, and each contributor presents a distinct perspective onhow and how much context figures into analysis. In the first commentary, Junko Takahashi examines the role of cultural context in understanding compliments and compliment responses in Japanese conversation. Next, Drew Fagan discusses the importance of considering multiple domains of teacher knowledge as context so as to enrich analysis of language classrooms. Catherine DiFelice Box employs the notion of procedural consequentiality to demonstrate how context unfolds within the discourse of a classroom interaction. Sarah Creider utilizes both conversation analysis and Goffman’s (1974) theories of frames and footing to reveal the multiple layers of context in a single turn of teacher talk. Rebekah Johnson and Donna DelPrete analyze a family dinnertime conversation to show how context features in family discourse. Finally, Tara Tarpey merges conversation analysis and ethnography in the analysis of an interaction between a tutor and a tutee in a writing center.
Bridging light-cone and NRQCD approaches: asymptotic behavior of $B_c$ electromagnetic form factor
Creators: name: Jia, Yu
name: Wang, Jian-Xiong
name: Yang, Deshan
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This work aims at illustrating that, for a class of leading-twist hard exclusive reactions involving two heavy quarkonia, the light-cone approach, when equipped with the strategy of refactorization of the light-cone distribution amplitude of quarkonium, can be employed to elegantly reproduce the corresponding predictions made in the nonrelativistic QCD (NRQCD) factorization approach, order by order in perturbative expansion. Taking the electromagnetic form factor of the $B_c$ meson at large momentum transfer, $Q^2$, as a concrete example, we compare the results obtained from both NRQCD-based and light-cone-based calculations through the next-to-leading order (NLO) in $α_s$, while at the leading order (LO) in both velocity and $1/Q^2$ expansion, and explicitly confirm their mutual agreement. As a byproduct, we apply our NLO result to explore certain features about the asymptotic behavior of the heavy-light meson form factor. We also address the major theoretical obstacles that prevent us from establishing an analogous equivalence between these two approaches for the double charmonium production process of phenomenological interest, $e^+e^-\to J/ψ+η_c$.
description: v3, 39 pages, 5 figures. A minor error in equation (37) corrected, Fig. 4 redrawn. A new paragraph added to discuss the numerical significance of double logarithm term in O(alpha_s) short-distane coefficient for gamma*->J/psi+eta_c process, and one reference added
Culture as Context
Creators: name: Takahashi, Junko
Publisher: name: Columbia University
Year: 2010
Subjects: Context (Linguistics)
Applied linguistics
Culture
Japanese language
Chinese language

description: The relationship between context and culture seems to result in certain patterns, forms, and linguistic or non-linguistic features. They are all packaged in a product called “text.” If we closely observe our own linguistic behavior, we can see how much all of these elements affect each other. From a discourse analytic perspective, culture is a necessary aspect to examine in order to infer what is truly occurring in a conversation. Gumperz (1982) suggests that no matter what the context is, “all verbal behavior is governed by social norms specifying participant roles,  rights and duties vis-à-vis each other” (p.165). He warns us of the danger of misunderstanding the speaker’s intentions and meanings if we solely rely on our own cultural background to interpret the talk. For instance, Hill, Ide, Ikuta, Kawasaki and Ogino (1986) and Ide (2006) assert that a strict Japanese social code for politeness called “wakimae” (discernment) requires all Japanese speakers to comply with it without choice in their verbal activities. Japanese society emphasizes humility and one way this is realized is the use of the “non-acceptance” strategy in compliment responses.
Signatures of a quantum Griffiths phase in a d-metal alloy close to its ferromagnetic quantum critical point
Creators: name: Schroeder, Almut
name: Ubaid-Kassis, Sara
name: Vojta, Thomas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We report magnetization ($M$) measurements close to the ferromagnetic quantum phase transition of the d-metal alloy Ni$_{1-x}$V$_x$ at a vanadium concentration of $x_c \approx 11.4 %$. In the diluted regime ($x>x_c$), the temperature ($T$) and magnetic field ($H$) dependencies of the magnetization are characterized by nonuniversal power laws and display $H/T$ scaling in a wide temperature and field range. The exponents vary strongly with $x$ and follow the predictions of a quantum Griffiths phase. We also discuss the deviations and limits of the quantum Griffiths phase as well as the phase boundaries due to bulk and cluster physics.
description: 4 pages, 5 figures, final version as published in the Strongly Correlated Electron Systems special issue of J. Phys. Condens. Matter
NFDI4Immuno - Letter of Intent
Creators: name: Busse, Christian E.
name: Babel, Nina
name: Chang, Hyun-Dong
name: Dorhoi, Anca
name: Eugster, Anne
name: Hummel, Michael
name: Kammerer, Robert
name: Küppers, Ralf
name: Meyer-Hermann, Michael
name: Nahnsen, Sven
name: Schmidt, Alexander
name: Schwab, Nicholas
name: Bröker, Barbara
name: Meissner, Felix
name: Siewert, Katherina
name: Zehn, Dietmar
Publisher: name: Zenodo
Year: 2020
Subjects: subject: AIRR
subject: NFDI
subject: Immunology
subject: FOS: Clinical medicine

description: Binding Letter of Intent of the NFDI4Immuno consortium initiative for the German National Research Data Infrastructure (NFDI) Program.
Orbital effects of non-isotropic mass depletion of the atmospheres of evaporating hot Jupiters in extrasolar systems
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We analytically and numerically investigate the long-term, i.e. averaged over one full revolution, orbital effects of the non-isotropic percent mass loss \dot m/m experienced by several transiting hot Jupiters whose atmospheres are hit by severe radiations flows coming from their close parent stars. The semi-major axis a, the argument of pericenter ωand the mean anomaly M experience net variations, while the eccentricity e, the inclination I and the longitude of the ascending node remain unchanged, on average. In particular, a increases independently of e and of the speed Vesc of the ejected mass. By assuming |\dot m| <= 10^17 kg yr-1, corresponding to |\dot m/m| <= 10^-10 yr-1 for a Jupiter-like planet, it turns out \dot a = 2.5 m yr^-1 for orbits with a = 0.05 au. Such an effect may play a role in the dynamical history of the hot Jupiters, especially in connection with the still unresolved issue of the arrest of the planetary inward migrations after a distance a >= 0.01 au is reached. The retrograde pericenter variation depends, instead, on e and V_esc. It may, in principle, act as a source of systematic uncertainty in some proposed measurements of the general relativistic pericenter precession; however, it turns out to be smaller than it by several orders of magnitude.
description: LaTex2e, 16 pages, no tables, 6 figures. To appear in New Astronomy (NA)
A Comprehensive Study on RXTE & INTEGRAL Observations of the X-ray Pulsar 4U 1907+09
Creators: name: Sahiner, S.
name: Inam, S. C.
name: Baykal, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyse \emph{INTEGRAL} (between 2005 October and 2007 November) and \emph{RXTE} (between 2007 June and 2011 March) observations of the accretion powered pulsar 4U 1907+09. From \emph{INTEGRAL} IBIS-ISGRI and \emph{RXTE}-PCA observations, we update pulse period history of the source. We construct power spectrum density of pulse frequencies and find that fluctuations in the pulse frequency derivatives are consistent with the random walk model with a noise strength of $1.27\times10^{-21}$ Hz s$^{-2}$. From the X-ray spectral analysis of \emph{RXTE}-PCA observations, we find that Hydrogen column density is variable over the binary orbit, tending to increase just after the periastron passage. We also show that the X-ray spectrum gets hardened with decreasing X-ray flux. We discuss pulse-to-pulse variability of the source near dipping ingress and egress. We find that the source more likely undergoes in dipping states after apastron until periastron when the accretion from clumpy wind might dominate so that occasional transitions to temporary propeller state might occur.
description: 19 pages, 8 figures, accepted for publication in MNRAS