cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hydrodynamic interaction between cylinders at moderate Reynolds numbers
Creators: name: Biswas, Anupam
Publisher: name: University of British Columbia
Year: 2013

description: The hydrodynamic interaction between two cylinders perpendicular to the freestream, in a tandem arrangement was studied for moderate Reynolds numbers (1≤Re≤40). The influence of multiple geometric variables was considered: separation distances between the cylinders, ellipticity of the cylinders, the cylinder aspect ratio, and the angular inclination between the cylinders. In the first part of this study, a numerical investigation of the two-dimensional steady flow past cylinders was carried out. The characteristic length, D, in all simulations was taken to be twice the major axis of the cylinder cross-section, (i.e. equal to the diameter for cylinders of circular cross-section). The two-dimensional flow was studied for separations up to 50D. Four different ellipticities were studied. The drags experienced by front and rear cylinders were compared with that experienced by a single cylinder of the same cross-section. The second part of the study consisted of the steady three-dimensional flow analysis for parallel cylinders in tandem for separations ranging from 2D to 20D and cylinder lengths up to 20D. In the third part of this thesis, a steady flow analysis was done for two circular cylinders in tandem with lengths equal to 5D but with the cylinder axes in different orientations relative to the plane normal to the flow. This angular separation between the cylinders produces a hydrodynamic moment, which is dependent on the geometry and the flow Reynolds number. The fourth and final part of this work is the study of the unsteady three-dimensional flow that would result from the hydrodynamic moment discussed in relation to the third part of the thesis. The thesis closes with some remarks on the implications of these findings to papermaking and recommendations for future work.
Parametric estimation. Finite sample theory
Creators: name: Spokoiny, Vladimir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The paper aims at reconsidering the famous Le Cam LAN theory. The main features of the approach which make it different from the classical one are as follows: (1) the study is nonasymptotic, that is, the sample size is fixed and does not tend to infinity; (2) the parametric assumption is possibly misspecified and the underlying data distribution can lie beyond the given parametric family. These two features enable to bridge the gap between parametric and nonparametric theory and to build a unified framework for statistical estimation. The main results include large deviation bounds for the (quasi) maximum likelihood and the local quadratic bracketing of the log-likelihood process. The latter yields a number of important corollaries for statistical inference: concentration, confidence and risk bounds, expansion of the maximum likelihood estimate, etc. All these corollaries are stated in a nonclassical way admitting a model misspecification and finite samples. However, the classical asymptotic results including the efficiency bounds can be easily derived as corollaries of the obtained nonasymptotic statements. At the same time, the new bracketing device works well in the situations with large or growing parameter dimension in which the classical parametric theory fails. The general results are illustrated for the i.i.d. setup as well as for generalized linear and median estimation. The results apply for any dimension of the parameter space and provide a quantitative lower bound on the sample size yielding the root-n accuracy.
description: Published in at http://dx.doi.org/10.1214/12-AOS1054 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Confidence bands for multivariate and time dependent inverse regression models
Creators: name: Proksch, Katharina
name: Bissantz, Nicolai
name: Dette, Holger
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Uniform asymptotic confidence bands for a multivariate regression function in an inverse regression model with a convolution-type operator are constructed. The results are derived using strong approximation methods and a limit theorem for the supremum of a stationary Gaussian field over an increasing system of sets. As a particular application, asymptotic confidence bands for a time dependent regression function $f_t(x)$ ($x\in \mathbb {R}^d,t\in \mathbb {R}$) in a convolution-type inverse regression model are obtained. Finally, we demonstrate the practical feasibility of our proposed methods in a simulation study and an application to the estimation of the luminosity profile of the elliptical galaxy NGC5017. To the best knowledge of the authors, the results presented in this paper are the first which provide uniform confidence bands for multivariate nonparametric function estimation in inverse problems.
description: Published at http://dx.doi.org/10.3150/13-BEJ563 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Orbital Degeneracy and Peierls Instability in Triangular Lattice Superconductor Ir$_{1-x}$Pt$_x$Te$_2$
Creators: name: Ootsuki, D.
name: Wakisaka, Y.
name: Pyon, S.
name: Kudo, K.
name: Nohara, M.
name: Arita, M.
name: Anzai, H.
name: Namatame, H.
name: Taniguchi, M.
name: Saini, N. L.
name: Mizokawa, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have studied electronic structure of triangular lattice Ir$_{1-x}$Pt$_x$Te$_2$ superconductor using photoemission spectroscopy and model calculations. Ir $4f$ core-level photoemission spectra show that Ir $5d$ $t_{2g}$ charge modulation established in the low temperature phase of IrTe$_2$ is suppressed by Pt doping. This observation indicates that the suppression of charge modulation is related to the emergence of superconductivity. Valence-band photoemission spectra of IrTe$_2$ suggest that the Ir $5d$ charge modulation is accompanied by Ir $5d$ orbital reconstruction. Based on the photoemission results and model calculations, we argue that the orbitally-induced Peierls effect governs the charge and orbital instability in the Ir$_{1-x}$Pt$_x$Te$_2$.
description: 5 pages,4 figures
title: DEPRECATED: THE DECISION TO UNDERTAKE VOCATIONAL HIGHER EDUCATION IN SHIPPING AND LOGISTICS IN THE UK
Creators: name: DINWOODIE, JOHN
Publisher: name: University of Plymouth
Year: 2001

description: This work investigates the decision to study shipping and logistics at advanced levels in the UK. Documented evidence reports and analyses the perceptions of students on vocational courses in shipping, transport and logistics and investigates why they chose their particular fields of study. A range of instruments are presented to analyse how students perceived that they had arrived at their study decisions, including national surveys of undergraduates in maritime business, postgraduates in shipping and logistics and professionals contemplating updating short courses. Qualitative, quantitative and mapping methods are presented along with perceptions of relevant professional outcome roles and other factors. Exploratory approaches to proposing and evaluating alternative approaches to teaching aimed at raising the student's perception of the nature of professional skills requirements were predicated by identifying and defining local student schemae and tailoring aids to their specific learning and teaching requirements. A cognitive mapping approach enabled comparisons of perceptions between postgraduates, whose individual beliefs, after being mapped and modelled as a directed network, were analysed, and differences between maps were quantified. Quantitative pairwise map comparisons included 54 individuals generating 1430 synchronal comparisons in one cohort and four diachronal cohort comparisons. These revealed that distance measures constrained by the numbers of transmitters or receivers, and the strength of relationships where appropriate, formed the best discriminators. Empirical and theoretical explanations of maps and attempts to compare particular subgroups and explain differences were often inconclusive. A unified social cognitive theory of career and academic interest, choice and performance generated useful propositions relating to how individuals manage issues of self-efFicacy, expected outcomes from decisions and their personal goals. Substantive work revealed problems of conflicting domains between students' verbatim statements, only weakly coincident with theoretical concepts. Conclusions that mapping is most powerful/when based on qualitative analysis of the richness and diversity of individual perceptions; infer that no simple standard decision process is operating and hence no single recruitment marketing device is apparent. In applying and disseminating findings, where possible, proposals were made to assist organisations promoting careers awareness and recruitment into relevant professions and university based vocational courses, published by relevant professional bodies.
In-Network Redundancy Generation for Opportunistic Speedup of Backup
Creators: name: Pamies-Juarez, Lluis
name: Datta, Anwitaman
name: Oggier, Frédérique
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Erasure coding is a storage-efficient alternative to replication for achieving reliable data backup in distributed storage systems. During the storage process, traditional erasure codes require a unique source node to create and upload all the redundant data to the different storage nodes. However, such a source node may have limited communication and computation capabilities, which constrain the storage process throughput. Moreover, the source node and the different storage nodes might not be able to send and receive data simultaneously -- e.g., nodes might be busy in a datacenter setting, or simply be offline in a peer-to-peer setting -- which can further threaten the efficacy of the overall storage process. In this paper we propose an "in-network" redundancy generation process which distributes the data insertion load among the source and storage nodes by allowing the storage nodes to generate new redundant data by exchanging partial information among themselves, improving the throughput of the storage process. The process is carried out asynchronously, utilizing spare bandwidth and computing resources from the storage nodes. The proposed approach leverages on the local repairability property of newly proposed erasure codes tailor made for the needs of distributed storage systems. We analytically show that the performance of this technique relies on an efficient usage of the spare node resources, and we derive a set of scheduling algorithms to maximize the same. We experimentally show, using availability traces from real peer-to-peer applications as well as Google data center availability and workload traces, that our algorithms can, depending on the environment characteristics, increase the throughput of the storage process significantly (up to 90% in data centers, and 60% in peer-to-peer settings) with respect to the classical naive data insertion approach.
Andreev reflection in two-dimensional topological insulators with either conserved or broken time-reversal symmetry
Creators: name: Narayan, Awadhesh
name: Sanvito, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate Andreev reflection in two-dimensional heterojunctions formed by a superconductor in contact with a topological insulator ribbon either possessing or breaking time-reversal symmetry. Both classes of topological insulators exhibit perfect Andreev reflection, which is robust against disorder. This is assigned to topologically protected edge states. In the time-reversal symmetric case we show that doping one of the ribbon edges with magnetic impurities suppresses one Andreev channel, while no such suppression is seen in the broken symmetry situation. Based on this observation we suggest a tabletop transport experiment able to distinguish between the two types of topological insulators, which does not involve the direct measurement of the material band structure.
description: Updated text, references added, published version
Disruptive breast cancer narratives: shaping cultural politics, informing feminist bioethics and performing repair
Creators: name: Nielsen, Emilia Victoria Llewellyn
Publisher: name: University of British Columbia
Year: 2013

description: This project explores the narration of experiential knowledge about breast cancer arguing that personal narratives, in the form of “disruptive breast cancer narratives,” have the potential to shift public perceptions, breast cancer culture and biomedical understandings of the disease. In Chapter 2, I explore the potential of narrative enquiry in qualitative health research and establish my interdisciplinary framework which turns to patient-centred knowledge creation, affective illness histories and archiving feelings as well as cultural studies of the body, critical gender and sexuality studies. Chapter 3 outlines my theoretical approach to disruptive breast cancer narratives and involves an exploration of the scholarly potential and limitations of illness narrative study and turns to narrative approaches to feminist bioethics. Chapters 4, 5, and 6 explore disruptive breast cancer narratives through close readings of narrative texts. In Chapter 4, I examine feminist anger through Barbara Ehrenreich’s (2001) “Welcome to Cancerland,” Audre Lorde’s (1981) The Cancer Journals and Kathlyn Conway’s (1997) Ordinary Life. In Chapter 5, I read Wendy Mesley’s (2006) Chasing the Cancer Answer and Kris Karr’s (2007) Crazy Sexy Cancer as documentary films that purport to disrupt the dominant discourses of breast cancer by exploring them in relation to discourses of personal responsibility and a figure I call the “cancer killjoy.” In Chapter 6, I begin with an examination of Eve Sedgwick’s (1993) “White Glasses” which provides a powerful critique of how gender and sexuality are constituted through a breast cancer diagnosis and treatments and advance this critique through readings of Catherine Lord’s (2004) The Summer of Her Baldness and the television drama The L Word (2006); this chapter is guided by S. Lochlann Jain’s (2007a, 2007b) conception of “elegiac politics.” My project concludes in Chapter 7, by exploring the potential of counternarratives of illness and of performing resistance, patienthood and narrative repair; here, I necessarily reflect on my own experience of chronic illness.
Originally Asymmetric Dark Matter
Creators: name: Okada, Nobuchika
name: Seto, Osamu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We propose a scenario with a fermion dark matter, where the dark matter particle used to be the Dirac fermion, but it takes the form of the Majorana fermion at a late time. The relic number density of the dark matter is determined by the dark matter asymmetry generated through the same mechanism as leptogenesis when the dark matter was the Dirac fermion. After efficient dark matter annihilation processes have frozen out, a phase transition of a scalar field takes place and generates Majorana mass terms to turn the dark matter particle into the Majorana fermion. In order to address this scenario in detail, we propose two simple models. The first one is based on the Standard Model (SM) gauge group and the dark matter originates the $SU(2)_L$ doublet Dirac fermion, analogous to the Higgsino-like neutralino in supersymmetric models. We estimate the spin-independent/dependent elastic scattering cross sections of this late-time Majorana dark matter with a proton and find the possibility to discover it by the direct and/or indirect dark matter search experiments in the near future. The second model is based on the $B-L$ gauged extension of the SM, where the dark matter is a SM singlet. Although this model is similar to the so-called Higgs portal dark matter scenario, the spin-independent elastic scattering cross section can be large enough to detect this dark matter in future experiments.
description: 24 pages. Final journal version
(Post)Colonial State and Constitutionalism in India. Differences and Crossings
Stato e costituzionalismo (post)coloniali in India. Differenze e attraversamenti
Creators: name: Grappi, Giorgio; Università Di Bologna
Publisher: name: Dipartimento di scienze politiche e sociali - Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: India; Colonialism; postcolonial State; Constitutionalism; Nationalism
India; colonialismo; Stato postcoloniale; costituzionalismo; nazionalismo

description: The article argues that the end of the formal division of the world between a colonizing metropolis and a colonized periphery requires a different reading of the State’s history. The essay deals with the relation between the formation of British India and the development of Indian nationalist movement through the events related to the ‘tiger of Mysore’, Tipu Sultan, and the swadeshi movement as portrayed in Tagore’s The Home and the World. The essay shows how colonial constitutionalism developed through the contemporary affirmation of the rule of law and the colonial difference. The postcolonial State emerged via concrete crossing of this difference, which today allows a different reading of the political discourses beyond the affirmation of the State as the barycenter of political organization at a global scale.
description: Con la fine della divisione formale del mondo tra una metropoli colonizzatrice e una periferia colonizzata si afferma la necessità di guardare alla storia dello Stato in modo differente. Rileggendo alcune vicende legate alla “tigre del Mysore”, Tipu Sultan, e il ritratto del movimento swadeshi nel romanzo di Tagore La casa e il mondo, il saggio affronta il rapporto tra la formazione dell’India Britannica e l’evoluzione del movimento nazionalista indiano. L’articolo mostra come il costituzionalismo coloniale si sia sviluppato attraverso l’affermazione del primato della legge e della differenza coloniale, e come lo Stato postcoloniale sia emerso in seguito a una serie di attraversamenti concreti di questa differenza, la cui analisi permette una diversa lettura dei discorsi politici che hanno sostenuto l’affermazione della forma Stato come baricentro dell’organizzazione politica su scala globale.
description: Scienza & Politica. Per una storia delle dottrine; Vol 24, N° 48 (2013)
Higgs Boson Mass from t-b-tau Yukawa Unification
Creators: name: Gogoladze, Ilia
name: Shafi, Qaisar
name: Un, Cem Salih
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We employ the Yukawa coupling unification condition, y_t= y_b= y_tau at M_GUT, inspired by supersymmetric SO(10) models, to estimate the lightest Higgs boson mass as well as masses of the associated squarks and gluino. We employ non-universal soft masses, dictated by SO(10) symmetry, for the gauginos. Furthermore, the soft masses for the two scalar Higgs doublets are set equal at M_GUT, and in some examples these are equal to the soft masses for scalars in the matter multiplets. For mu > 0, M_2 > 0, where M_2 denotes the SU(2) gaugino mass, essentially perfect t-b-tau Yukawa unification is possible, and it predicts a Higgs mass of 122 - 124 GeV with a theoretical uncertainty of about 3 GeV. The corresponding gluino and the first two family squarks have masses 3 TeV. We present some LHC testable benchmark points which also show the presence of neutralino-stau coannihilation in this scenario. The well-known MSSM parameter tan beta~47.
description: 17 pages, 4 figures, 1 tables. arXiv admin note: substantial text overlap with arXiv:1107.1228, arXiv:1102.0013, arXiv:1203.6082
title: DEPRECATED: A New Framework for Strategic Information Systems in Airline Industry
Creators: name: Aljefri, Abdulrahman
Publisher: name: University of Plymouth
Year: 2014
Subjects: Airline IT Enterprise Systems

description: Stiff competition in the Airline sector mandates airlines to innovate ways to gain a competitive advantage over their rivals; however, without a strong IT the mission to attain this would be arduous. Large airlines do their best to maximise the use of enterprise systems to stream their business processes. Nonetheless, some airlines are not up to date with technology and are left with few choices when attempting to secure their existence in today’s harsh market. One option is to implement bleeding edge systems concurrently (which is our focus in this paper) due to the fact that very scant research exists regarding this phenomenon, let alone the airline sector itself. The aim of this study is explore and investigate the phenomenon of deploying multi enterprise systems concurrently due to its uniqueness and owing to the fact that this approach is not the common practice most airline undertake. We argue here that having multi Airline Solution Providers (ASP) working together concurrently to constitute a homogeneous solution generates many aspects that necessitate a deep understanding in such matters as competitor ASPs and technology leakage. In addition, the study explored various themes that unleash the phenomenon of the concurrent Multi- collaborative Enterprise Systems (MES). The role of cohesion factors that groups the rivals to work under the umbrella of an organisation was also embarked upon in this study. Various aspects contributing to the success of the MES phenomenon have been exposed with regarding ASP’s interplay, organisation, and other contextual surrounding MES. Finally, this study drew a strategic frame work for airlines that unleash the MES phenomenon. A large airline and its collaborative airline solutions provider were taken as the scope of study; the airline had over twenty six thousand employees. Five reputable world class ASPs in the airline industry in various fields were also included. The twenty five participants in this study were professionals in IT and the airline business besides being involved heavily in the phenomenon of deploying concurrent multi enterprise systems. Grounded Theory techniques were used to analyse the large volume of data gathered underpinning this by using state of art software package such as nVivo. This research has explored the phenomenon under study using grounded theory methodology to build a theoretical model that best presents the MES initiative. In addition, it has offered a well-founded framework that explains the MES phenomenon in details, which is relevant to both practitioners and researchers.This research has clearly explored and demonstrated the inhibitors and enablers in the undertaking of MES. In particular, it has focused on enablers of the organisation that received the MES. Furthermore, it has explored the interrelationship between ASPs and exposed some of the aspects that need more focus between rivals working on the same project.
Conservation laws and symmetries of quasilinear radial wave equations in multi-dimensions
Creators: name: Anco, Stephen C.
name: MacNaughton, Steven A.
name: Wolf, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Symmetries and conservation laws are studied for two classes of physically and analytically interesting radial wave equations with power nonlinearities in multi-dimensions. The results consist of two main classifications: all symmetries of point type and all conservation laws of a general energy-momentum type are explicitly determined, including those such as dilations, inversions, similarity energies and conformal energies that exist only for special powers or dimensions. In particular, all variational cases (when a Lagrangian formulation exists) and non-variational cases (when no Lagrangian exists) for these wave equations are considered. As main results, the classification yields generalized energies and radial momenta in certain non-variational cases, which are shown to arise from a new type of Morawetz dilation identity that produces conservation laws for each of the two wave equations in a different way than Noether's theorem.
description: Typos corrected in published version, 38 pages. Lagrangian functionals now include missing integration over the time variable
Detector Geometries for Coherent X-Ray Diffractive Imaging at the SPB Instrument
Creators: name: Giewekemeyer, Klaus
name: Turcato, Monica
name: Mancuso, Adrian
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2013
Subjects: Physics

description: The purpose of this document is to investigate the feasibility of different detector layouts and geometries with respect to applications in coherent imaging at the SPB instrument of the European XFEL. Two detector designs, currently developed and implemented by the AGIPD and the DSSC consortia, are considered, with an emphasis on an accurate mathematical representation of the geometrical parameters, as far as they influence the experimental feasibility. Even though the two detectors are relatively different in design and only partially overlap in their applicable photon energy ranges, the general conclusions drawn here are very similar.
title: DEPRECATED: Performance of a Boussinesq model for shoaling and breaking waves : a comparison with large scale laboratory data
Creators: name: Ozanne, Francoise
Publisher: name: University of Plymouth
Year: 1998
Subjects: Civil engineering Testing Laboratories

description: In this thesis, a nonlinear model predicting hydrodynamics data for waves shoaling and breaking on a beach is reproduced and extensively tested with laboratory data. The model is based on the 1D Boussinesq equations as derived by Madsen et al. (1991) and Madsen and Sorensen (1992), with the free surface elevation and the depth-integrated velocity as variables. It allows slowly varying bathymetries and contains additional high order terms to improve the frequency dispersion for shorter wave periods, and thus also to improve the shoaling properties of the model. Wave breaking is modelled using the concept of a surface roller as formulated by Schäffer et al. (1993). It is assumed that bottom friction is negligible. A large scale laboratory experiment (Supertank), designed in particular to obtain data to test the validity of wave propagation models, provides the wave and current data. Wave evolution over a complex bathymetry is examined for 4 cases. The data include conditions for long and short waves, and regular and irregular waves. During the model evaluation, emphasis is put on the study of parameters of importance to sediment transport, including (orbital) velocity, undertow and wave shape prediction. The latter encompasses velocity and elevation skewness, kurtosis and asymmetry. It is found that, despite an overestimation of the depth-averaged horizontal velocity in some cases, the predicted velocity moments and undertow are in good agreement with the data. Using a bispectral analysis, it is shown that the nonlinear transfers of energy amongst the low order harmonics are well reproduced, but that errors are introduced in the treatment of the high order super-harmonics. As a result, the short waves tests are found to yield better results than those for long waves. A sensitivity analysis on the free parameters introduced in the simulation of wave breaking is carried out. It appears that the results are mostly sensitive to the critical xv avve fi-ont slope OB , and in particular that the elevation and velocity skewness and kurtosis predictions are very sensitive to this parameter.
Two kinds of Phase transitions in a Voting model
Creators: name: Hisakado, Masato
name: Mori, Shintaro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we discuss a voting model with two candidates, C_0 and C_1. We consider two types of voters--herders and independents. The voting of independents is based on their fundamental values; on the other hand, the voting of herders is based on the number of previous votes. We can identify two kinds of phase transitions. One is an information cascade transition similar to a phase transition seen in Ising model. The other is a transition of super and normal diffusions. These phase transitions coexist. We compared our results to the conclusions of experiments and identified the phase transitions in the upper limit of the time t by using analysis of human behavior obtained from experiments.
description: 24 pages, 6 figures
Video gaming in the classroom : insights and ideas from teenage students
Creators: name: Halim, Peter You Li
Publisher: name: University of British Columbia
Year: 2013

description: For this research, four high school aged teenagers participated in an intensive one week video gaming camp, at which time they articulated their attitudes and ideas about mainstream video games and their place in education. The purpose was to explore strategies for utilizing mainstream commercial video games for educative purposes in the classroom. The participants’ insights along with observations made on their interaction with video games were analyzed through Rogers’ Diffusion of Innovation and the General Aggression Model. In summary, the participants, more or less experts in gaming, enjoyed video games and described them as one of their favourite activities. Furthermore, it was found that video games played both a positive and negative role in the participants’ lives. For example, all participants seemed to have developed healthy values and relationships directly through playing video games during their preadolescent years. Conversely, their responses also indicated that they experienced limits to video games and did not see innovation from market and home to school as a smooth, trivial process. Rather, they provided key insights into aligning specific games with specific content, curriculum, and courses. The participants’ insights suggest that the use of mainstream video games for learning will most likely continue to be a fringe strategy implemented by individual teachers who actively discern the educational uses of video games. Game and gaming literacies are among the most recent entries into new literacies research. This thesis contributes to this research by exploring teenagers’ ideas about gaming in the classroom. In conclusion, this study finds that mainstream video games have potential to be effectively used as learning strategies in the classroom in the future pending on continued progress and interest in this endeavor.
Correlations and Pair Formation in a Repulsively Interacting Fermi Gas
Creators: name: Sanner, Christian
name: Su, Edward J.
name: Huang, Wujie
name: Keshet, Aviv
name: Gillen, Jonathon
name: Ketterle, Wolfgang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A degenerate Fermi gas is rapidly quenched into the regime of strong effective repulsion near a Feshbach resonance. The spin fluctuations are monitored using speckle imaging and, contrary to several theoretical predictions, the samples remain in the paramagnetic phase for arbitrarily large scattering length. Over a wide range of interaction strengths a rapid decay into bound pairs is observed over times on the order of 10\hbar/E_F, preventing the study of equilibrium phases of strongly repulsive fermions. Our work suggests that a Fermi gas with strong short-range repulsive interactions does not undergo a ferromagnetic phase transition.
PRAGMATIC ISSUES IN INTERPRETATION
Creators: name: Tuychiyeva Parvina Bakhodirovna  Teacher of the department of   Translation Theory and Practice  Samarkand State Institute of Foreign Languages
Publisher: name: Zenodo
Year: 2025

description: Pragmatics is the branch of linguistics that studies how meaning is derived from context, speaker intention, and social norms rather than just literal word meanings. In interpretation (both spoken and written translation), pragmatic issues arise when language is not used in a straightforward way, leading to potential misunderstandings or misinterpretations.
Random Matrix Models for Dirac Operators at finite Lattice Spacing
Creators: name: Kieburg, Mario
name: Verbaarschot, Jacobus J. M.
name: Zafeiropoulos, Savvas
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15B52, 60B20

description: We study discretization effects of the Wilson and staggered Dirac operator with $N_{\rm c}>2$ using chiral random matrix theory (chRMT). We obtain analytical results for the joint probability density of Wilson-chRMT in terms of a determinantal expression over complex pairs of eigenvalues, and real eigenvalues corresponding to eigenvectors of positive or negative chirality as well as for the eigenvalue densities. The explicit dependence on the lattice spacing can be readily read off from our results which are compared to numerical simulations of Wilson-chRMT. For the staggered Dirac operator we have studied random matrices modeling the transition from non-degenerate eigenvalues at non-zero lattice spacing to degenerate ones in the continuum limit.
description: 7 pages, 6 figures, Proceedings for the XXIX International Symposium on Lattice Field Theory, July 10 -- 16 2011, Squaw Valley, Lake Tahoe, California, PACS: 12.38.Gc, 05.50.+q, 02.10.Yn, 11.15.Ha
Fibromyalgiesyndrom – Was ist das?
Creators: name: Ärztliches Zentrum Für Qualität In Der Medizin (ÄZQ)
Publisher: name: Bundesärztekammer (BÄK); Kassenärztliche Bundesvereinigung (KBV); Ärztliches Zentrum für Qualität in der Medizin (ÄZQ)
Year: 2013
Subjects: subject: 610 Medical sciences; Medicine

description: Kurzinformationen für Patienten
Relationship between bond-breakage correlations and four-point correlations in heterogeneous glassy dynamics: Configuration changes and vibration modes
Creators: name: Shiba, Hayato
name: Kawasaki, Takeshi
name: Onuki, Akira
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the dynamic heterogeneities of glassy particle systems in the theoretical schemes of bond breakage and four-point correlation functions. In the bond-breakage scheme, we introduce the structure factor S_b(q,t) and the susceptibility chi_b(t) to detect the spatial correlations of configuration changes. Here chi_b(t) attains a maximum at t =t_b^max as a function of time t, where the fraction of the particles with broken bonds phi_b(t)$ is about 1/2. In the four-point scheme, treating the structure factor S_4(q,t) and the susceptibility chi_4(t), we detect superpositions of the heterogeneity of bond breakage and that of thermal low-frequency vibration modes. While the former grows slowly, the latter emerges quickly to exhibit complex space-time behavior. In two dimensions, the vibration modes extending over the system yield significant contributions to the four-point correlations, which depend on the system size logarithmically. A maximum of chi_4(t) is attained at t= t_4^max, where these two contributions become of the same order. As a result, t_4^max is considerably shorter than t_b^max.
description: 15 pages, 16 figures
README documentation for "PPPP beam profiles and measured Shack Hartmann slopes from the PPPPP experiment"
Creators: name: Bharmal, Nazim
Publisher: name: Durham University
Year: 2023
Subjects: subject: Optics, Adaptive
subject: Astronomical instruments
subject: Atmospheric turbulence--Measurement
subject: Adaptive Optics
subject: Wavefront sensing

description: A collection of 2D images, measured by two cameras, and wavefront sensor slopes, according to the PPPP methodology for wavefront sensing, from a laboratory experiment, PPPPP. Associated with the data are aberrations produced by a deformable mirror in the experiment, calculated wavefront error, and data quality quicklook plots. The dataset includes a range of aberration amplitudes.
description: An automated script (written in Python 2.7, available from NAB) ran the experiment, PPPPP, which had three cameras, identically controlled via three instances of the DARC RTC, and one DM, controlled via a separate computer that interpreted commands sent remotely from the script. Configuration files for DARC are also available (from NAB).
On the effective potential for Horava-Lifshitz-like theories
Creators: name: Farias, C. F.
name: Gomes, M.
name: Nascimento, J. R.
name: Petrov, A. Yu.
name: da Silva, A. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the one-loop effective potential for some Horava-Lifshitz-like theories.
description: 11 pages, version published in the journal
Asthma drug regimen optimality and health services utilization : a population-based analysis in British Columbia
Creators: name: Zhang, Tingting
Publisher: name: University of British Columbia
Year: 2013

description: Background: Drug therapy is the mainstay medical treatment for asthma patients. Many asthma patients (up to 70%) receive suboptimal drug therapy. Inadequate use of inhaled corticosteroids (ICS) has been associated with increased emergency department (ED) visits and hospital admissions for asthma. To understand patients’ asthma drug use in British Columbia (B.C.) and improve health outcomes, this study describes the burden of asthma, identifies patients who received suboptimal asthma drug regimens according to asthma clinical practice guidelines, and examines the link between regimen optimality and health services utilization for asthma in an entire population with treated asthma in BC from 1996 to 2009. Methods: A cohort of 336,901 asthma patients between 5–55 years of age was identified using provincial health services utilization data from 1996 to 2009. Annual patient medication dispensings of short-acting bronchodilators (SABA) with or without ICS were categorized into optimal or suboptimal regimens based on the asthma clinical practice guidelines. The association between regimen optimality and health services utilization was examined in one-year, as well as during a 14-year study period, using logistic regression models and Cox Proportional regression models, respectively. Results: The prevalence (~2%) and incidence (0.7%) of asthma was stable in patients 5-55 years of age in B.C. from 1996 to 2009. Asthma-related specialist visits, ED visits and hospital admissions declined by over 50% during the study period. In 2009, patients with suboptimal regimens had significantly greater risk of using health services than patients with optimal regimens of SABA and/or ICS. Over time, switching from a suboptimal to an optimal drug regimen was associated with a 30% reduction in the use of hospital services for asthma iii (hazard ratio (HR) 0.71; 95% CI 0.54 – 0.93), and a 50% reduction in the use of ED services for asthma (HR 0.49; 95% CI 0.33 – 0.73). Conclusions: Much of the healthcare burden associated with asthma is preventable by optimizing drug therapy, in particular, with improved ICS adherence. Identifying patients with suboptimal asthma management practices is a critical step in reducing the burden of asthma on the healthcare system and ultimately improving the quality of life of asthma patients.
Contraction of monotone phase-coupled oscillators
Creators: name: Mauroy, Alexandre
name: Sepulchre, Rodolphe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This paper establishes a global contraction property for networks of phase-coupled oscillators characterized by a monotone coupling function. The contraction measure is a total variation distance. The contraction property determines the asymptotic behavior of the network, which is either finite-time synchronization or asymptotic convergence to a splay state.
description: 10 pages
Spinning Q-balls in Abelian Gauge Theories with positive potentials: existence and non existence
Creators: name: Mugnai, Dimitri
name: Rinaldi, Matteo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the existence of cylindrically symmetric electro-magneto-static solitary waves for a system of a nonlinear Klein-Gordon equation coupled with Maxwell's equations in presence of a positive mass and of a nonnegative nonlinear potential. Nonexistence results are provided as well.
description: arXiv admin note: text overlap with arXiv:0903.3322 by other authors
Influence of Liquid/Gas ratio and alkalinity on photosynthetic biogas upgrading efficiency in an outdoors tubular photobioreactor
Creators: name: Marín, David
name: Ortíz, Antonio
name: Uggetti, Enrica
name: García, Joan
name: Lebrero, Raquel
name: Muñoz, Raúl
Publisher: name: Zenodo
Year: 2018
Subjects: biogas
Alkalinity
liquid/gas ratio

description: Poster
description: {"references": ["Bahr et al (2014)", "Mar\u00edn et al (2018)", "Mu\u00f1oz et al (2015)"]}
Normal crossing properties of complex hypersurfaces via logarithmic residues
Creators: name: Granger, Michel
name: Schulze, Mathias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32S25, 32A27, 32C37

description: We introduce a dual logarithmic residue map for hypersurface singularities and use it to answer a question of Kyoji Saito. Our result extends a theorem of Lê and Saito by an algebraic characterization of hypersurfaces that are normal crossing in codimension one. For free divisors, we relate the latter condition to other natural conditions involving the Jacobian ideal and the normalization. This leads to an algebraic characterization of normal crossing divisors. As a side result, describe all free divisors with Gorenstein singular locus.
description: 17 pages
Synaesthesia and learning : a bidirectional relationship
Creators: name: Watson, Marcus Robert
Publisher: name: University of British Columbia
Year: 2013

description: I present new evidence about the relationships between learning and synaesthesia, particularly grapheme-colour synaesthesia, in which individuals experience letters and numbers as coloured. As part of the largest survey of synaesthetic tendencies ever performed, I show that second language acquisition can act as a trigger for the development of synaesthesia, such that children who learn a second language in grade school are three times more likely to develop synaesthesia as native bilinguals. I also demonstrate that previous reports of a sex bias in synaesthesia are almost certainly due to response and compliance biases, rather than any real differences in the prevalence of synaesthesia between men and women. In a detailed examination of the influences of learning on synaesthetic experiences, I show that synaesthetic colours are influenced by knowledge about letters’ shapes, frequencies, alphabetical order, phonology, and categorical qualities. Finally, I demonstrate that synaesthesia can itself be exploited in learning. All these results are presented as supporting a developmental learning hypothesis of synaesthesia, in which synaesthesia develops, at least in part, because it is useful.
Entangling many-body bound states with propagative modes in Bose-Hubbard systems
Creators: name: Collura, Mario
name: Aufderheide, Helge
name: Roux, Guillaume
name: Karevski, Dragi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum evolution of a cloud of bosons initially localized on part of a one dimensional optical lattice and suddenly subjected to a linear ramp is studied, realizing a quantum analog of the "Galileo ramp" experiment. The main remarkable effects of this realistic setup are revealed using analytical and numerical methods. Only part of the particles are ejected for a high enough ramp, while the others remain self-trapped. Then, the trapped density profile displays rich dynamics with Josephson-like oscillations around a plateau. This setup, by coupling bound states to propagative modes, creates two diverging condensates for which the entanglement is computed and related to the equilibrium one. Further, we address the role of integrability on the entanglement and on the damping and thermalization of simple observables.
description: 12 pages, 12 figures
THE STUDY ON EMPLOYEE PERCEPTION IN PERFORMANCE APPRAISAL IN TEXTILE INDUSTRY AT COIMBATORE
Creators: name: J. Dhivya* & Dr. K. Sivakumar**
Publisher: name: Zenodo
Year: 2025

description: Performance appraisal system is a major tool for most of the organizations to evaluate various aspects of the employees. Performance appraisal program has a significant impact on the employee’s perception which may influence the behavior in terms of performance of the employee. The objective of the study was to determine the perception of employees towards performance appraisal system. This study is conducted with the help of primary data collected from fifty employees of in various textiles industry in Coimbatore district and using convenience sampling method It was observed from the study that performance appraisal increases in 720 performance appraisal system developed and Moderate and performance appraisal system to be transparent.
Stochastic differential equations driven by fractional Brownian motion and Poisson point process
Creators: name: Bai, Lihua
name: Ma, Jin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we study a class of stochastic differential equations with additive noise that contains a fractional Brownian motion (fBM) and a Poisson point process of class (QL). The differential equation of this kind is motivated by the reserve processes in a general insurance model, in which the long term dependence between the claim payment and the past history of liability becomes the main focus. We establish some new fractional calculus on the fractional Wiener-Poisson space, from which we define the weak solution of the SDE and prove its existence and uniqueness. Using an extended form of Krylov-type estimate for the combined noise of fBM and compound Poisson, we prove the existence of the strong solution, along the lines of Gyöngy and Pardoux (Probab. Theory Related Fields 94 (1993) 413-425). Our result in particular extends the one by Mishura and Nualart (Statist. Probab. Lett. 70 (2004) 253-261).
description: Published at http://dx.doi.org/10.3150/13-BEJ568 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)