cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Counterhegemonic pedagogies : educators’ reflections on social vision, subjectivity, resistance and practice
Creators: name: Montague, Elizabeth
Publisher: name: University of British Columbia
Year: 2009

description: This study identified and pursued some recurring issues and questions in recent journal articles on socially transformative or counterhegemonic forms of pedagogy. The articles were written by critical educators whose pedagogies include feminist, postmodern, anti-racist and other socially transformative approaches to teaching practice. I pursued questions in dialogue with four prominent critical educators and authors through a review of their self-reflective writings on critical practice, followed by discussions with each about their theoretical frameworks and practices. The authors who participated in these discussions were Dr. Elizabeth Ellsworth, Dr. Magda Lewis, Dr. Roger Simon and Dr. Beverly Daniel Tatum. My questions related to the social visions and theories of subjectivity that inform their pedagogies; and to student resistance and educators' transformative practices in the context of their classrooms. Our discussions emphasized many of the limits and possibilities of critical pedagogical practice and highlighted the importance of collective social visions that remain open, indeterminate and unfinished; as well as models for performing social positions differently for those in both dominant and subordinated positions. The absence of non-oppressive models was identified as a clear problem for addressing social reproduction in relation to race and gender. Discussions on subjectivity in the context of socially transformative projects underlined the importance of taking account of the difficulties involved in abandoning known and familiar positions and social relations, of appreciating the force of hegemonic meanings and of individual investment in existing relations of power. Important also is an appreciation of the blind-spots inherent in positions, and the need to deconstruct dominant positions in dialogue with subordinated ones. Educators described the ways they encounter, interpret and acknowledge student resistance and emotional reactions in classrooms. To address resistance, some educators again emphasized the importance of new and non-oppressive models for performing social identities as well as opportunities for students to practice such positions. All educators discussed the importance of community, shared vision and collaboration both within and beyond the classroom as a crucial support in undertaking counterhegemonic pedagogies.
title: Performance-enhancing or purely therapeutic? The Impact of acute, short-term, and chronic administration of asthma-related glucocorticoid therapy on athlete health, performance and recovery
Creators: name: Gowers, William Edward
Publisher: name: University of Kent
Year: 2024

description: Exercise-induced bronchoconstriction (EIB) is highly prevalent in elite athlete populations and requires pharmacological treatment such as inhaled corticosteroids (ICS) to manage the condition, or oral glucocorticoids (GC) in the event of serious emergency exacerbation. However, debate continues if access to these substances are not only therapeutic but also performance-enhancing. This thesis aimed to investigate the impact of acute, short-term, and chronic administration of asthma-related GC therapy on athlete health, performance, and recovery. The first experimental study (Chapter 4) examined in a population of elite swimmers the impact of diagnosing and initiating asthma therapy on airway health outcomes and real-world performance at major competitions. This study reinforced that elite athletes mandate the use of asthma therapy. However, initiating and maintaining treatment did not enhance major competition performance beyond the natural progression expected between events. Chapter 5 gave methodological development to prospective ICS experimental work (Chapter 6 and 7) by modelling beclomethasone dipropionate (BDP) deposition under different conditions, including slow and fast inhalation flow rates, and with or without a valved-holding chamber (VHC). The findings showed that the inhalation flow rate can significantly impact the delivery of BDP. Additionally, the use of a VHC would reduce the reliance on BDP device actuation coordination and improve the fine particle dose, thereby theoretically improving the mechanisms of action of ICS. Following this, experimental study 3 (Chapter 6) investigated the ergogenic potential of acute oral GC and ICS by comparing these two administration routes on initial 40-km cycling time-trial (TT) and subsequent recovery for a further 10-km TT performed on the same day. The results suggested that supratherapeutic dose of ICS did not improve performance. However oral GC may be "possibly beneficial" to initial TT performance. Neither administration route impacted recovery. Finally, experimental study 4 (Chapter 7) investigated the effect of short-term (14-day) administration of ICS on repeated bout 10-km cycling TT performance. The findings demonstrated that there was no improvement in performance or recovery from using high-dose ICS compared to a placebo condition. Collectively, the findings of this thesis support that elite athletes require asthma therapy, and the current WADA guidelines to allow ICS in-competition is appropriate due to the lack of an ergogenic effect when assessed using ecologically valid TT assessments or when used for therapeutic purposes within an elite athlete population. Oral GC should remain controlled with a therapeutic use exemption due to uncertainties of ergogenic impact, immunosuppressive effects, and well-established long-term health implications.
IMPROVING ITERATIVE SIMILARITY SEARCHES WITH BETTER ALIGNMENTS AND BETTER STATISTICS
Creators: name: Gonzalez, Mileidy
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: subject: Alignment
subject: Homologous overextension
subject: PSI-BLAST
subject: Sequence comparison
subject: Similarity searching
subject: Statistics
subject: FOS: Mathematics

description: In this work, we evaluate the current limitations of iterative similarity searches and investigate several strategies to improve their performance. To evaluate the reliability of iterative approaches as homology inference tools we create RefProtDom--a benchmarking dataset of diverse query domains and full-length proteins containing their homologs in a variety of architectures to simulate searches of real proteins with complex homology relationships. RefProtDom's homology annotations and boundaries were manually supplemented using local and semi-global searches, reciprocal searches, and structural classifications to ensure accurate alignment evaluation. Using RefProtDom, we identified a previously unrecognized source of error in PSI-BLAST (Position Specific Iterated BLAST) that is responsible for its profile corruption: Homologous Over-extension (HOE). HOE accounts for the largest fraction of the initial false positive errors (hard queries: 86%; sampled queries: 68%), and the largest fraction of false positives at iteration 5 (hard: 51-91%, sampled: 49-69%). We implement a (noExt) strategy to reduce the HOE error that increases PSI-BLAST's specificity 4-8 fold. We also show that HOE is not a similarity-measurement or statistical error, but rather an alignment strategy error to which all iterative similarity-searching methods are susceptible. The superior scores and gap penalties afforded by the rigorous strategies of PSI-SEARCH noExt and JACKHMMER, respectively, did not provide any improvement over PSI-BLAST noExt. Rigorous strategies indeed provide better sensitivity in pair-wise (e.g. SSEARCH: 6.2% hard family coverage; BLAST: 4.3%) and better specificity in profile (e.g. PSI-SEARCH: 0.05% hard non-homologous errors; PSI-BLAST: 2%), searches for the unmodified methods. In the absence of a noExt modification, JACKHMMER outperforms PSI-SEARCH, and both outperform PSI-BLAST. But, HOE is such a pervasive phenomenon for all iterative methods, that addressing it is enough to level the methods' performance. Our noExt strategy effectively prevents the propagation of the HOE alignment pathology, but it does not prevent it from happening when a homology is first identified. We conclude by outlining future directions to improve alignment accuracy, which, if addressed, should allow the sensitivity of iterative searches to more closely approach that of structural comparisons.
Q-values of the Superallowed beta-Emitters 26m-Al, 42-Sc and 46-V and their impact on V_ud and the Unitarity of the CKM Matrix
Creators: name: Eronen, T.
name: Hardy, J. C.
name: Elomaa, V.
name: Hager, U.
name: Hakala, J.
name: Jokinen, A.
name: Kankainen, A.
name: Kolhinen, V. S.
name: Moore, I.
name: Penttila, H.
name: Rahaman, S.
name: Rissanen, J.
name: Saastamoinen, A.
name: Sonoda, T.
name: Aysto, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The beta-decay Q_EC-values of the superallowed beta emitters 26m-Al, 42-Sc and 46-V have been measured with a Penning trap to a relative precision of better than 8x10^-9. Our result for 46-V, 7052.72(31) keV, confirms a recent measurement that differed significantly from the previously accepted reaction-based Q_EC-value. However, our results for 26m-Al and 42-Sc, 4232.83(13) keV and 6426.13(21) keV, are consistent with previous reaction-based values. By eliminating the possibility of a systematic difference between the two techniques, this result demonstrates that no significant shift in the deduced value of V_ud should be anticipated.
description: 4 pages, 2 figures, 1 table. Submitted to Phys. Rev. Lett
1D and 2D Flow Routing on a Terrain
Creators: name: Lowe, Aaron
name: Svendsen, Svend C.
name: Agarwal, Pankaj K.
name: Arge, Lars
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: An important problem in terrain analysis is modeling how water flows across a terrain creating floods by forming channels and filling depressions. In this paper we study a number of \emph{flow-query} related problems: Given a terrain $Σ$, represented as a triangulated $xy$-monotone surface with $n$ vertices, a rain distribution $R$ which may vary over time, determine how much water is flowing over a given edge as a function of time. We develop internal-memory as well as I/O-efficient algorithms for flow queries. This paper contains four main results: (i) We present an internal-memory algorithm that preprocesses $Σ$ into a linear-size data structure that for a (possibly time varying) rain distribution $R$ can return the flow-rate functions of all edges of $Σ$ in $O(ρk+|ϕ| \log n)$ time, where $ρ$ is the number of sinks in $Σ$, $k$ is the number of times the rain distribution changes, and $|ϕ|$ is the total complexity of the flow-rate functions that have non-zero values; (ii) We also present an I/O-efficient algorithm for preprocessing $Σ$ into a linear-size data structure so that for a rain distribution $R$, it can compute the flow-rate function of all edges using $O(\text{Sort}(|ϕ|))$ I/Os and $O(|ϕ| \log |ϕ|)$ internal computation time. (iii) $Σ$ can be preprocessed into a linear-size data structure so that for a given rain distribution $R$, the flow-rate function of an edge $(q,r) \in Σ$ under the single-flow direction (SFD) model can be computed more efficiently. (iv) We present an algorithm for computing the two-dimensional channel along which water flows using Manning's equation; a widely used empirical equation that relates the flow-rate of water in an open channel to the geometry of the channel along with the height of water in the channel.
description: 12 pages, to be published in SIGSPATIAL'20
Program Equivalence for Assisted Grading of Functional Programs (Extended Version)
Creators: name: Clune, Joshua
name: Ramamurthy, Vijay
name: Martins, Ruben
name: Acar, Umut A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: In courses that involve programming assignments, giving meaningful feedback to students is an important challenge. Human beings can give useful feedback by manually grading the programs but this is a time-consuming, labor intensive, and usually boring process. Automatic graders can be fast and scale well but they usually provide poor feedback. Although there has been research on improving automatic graders, research on scaling and improving human grading is limited. We propose to scale human grading by augmenting the manual grading process with an equivalence algorithm that can identify the equivalences between student submissions. This enables human graders to give targeted feedback for multiple student submissions at once. Our technique is conservative in two aspects. First, it identifies equivalence between submissions that are algorithmically similar, e.g., it cannot identify the equivalence between quicksort and mergesort. Second, it uses formal methods instead of clustering algorithms from the machine learning literature. This allows us to prove a soundness result that guarantees that submissions will never be clustered together in error. Despite only reporting equivalence when there is algorithmic similarity and the ability to formally prove equivalence, we show that our technique can significantly reduce grading time for thousands of programming submissions from an introductory functional programming course.
Temporally Guided Music-to-Body-Movement Generation
Creators: name: Kao, Hsuan-Kai
name: Su, Li
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multimedia (cs.MM)
subject: Artificial Intelligence (cs.AI)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a neural network model to generate virtual violinist's 3-D skeleton movements from music audio. Improved from the conventional recurrent neural network models for generating 2-D skeleton data in previous works, the proposed model incorporates an encoder-decoder architecture, as well as the self-attention mechanism to model the complicated dynamics in body movement sequences. To facilitate the optimization of self-attention model, beat tracking is applied to determine effective sizes and boundaries of the training examples. The decoder is accompanied with a refining network and a bowing attack inference mechanism to emphasize the right-hand behavior and bowing attack timing. Both objective and subjective evaluations reveal that the proposed model outperforms the state-of-the-art methods. To the best of our knowledge, this work represents the first attempt to generate 3-D violinists' body movements considering key features in musical body movement.
D6.1 6G-SENSES Standardisation, Dissemination, Communication, and Liaison Activities Plan
Creators: name: Jesús, Gutiérrez Terán
Publisher: name: Zenodo
Year: 2024
Subjects: 5G

description: This document has described 6G-SENSES’s plan on standardization, dissemination and communication ac-tions, together with the envisaged liaisons. Although these plans are subject to modifications, they consti-tute the framework of reference that will drive the coordination, implementation, and supervision of 6G-SENSES dissemination and communication activities. Also, they ensure that 6G-SENSES achievements are widely spread over the 6G-SENSES target audience to enhance the project 's impact and visibility to the European Union (EU) and the entire world.
A Study in Singapore: Perceptions about the Importance of Written English Language and Undergraduates’ Competency Level
Creators: name: Ng, Lee Keng
name: Lim, Boon Tien
name: Ramakanthan, Radhika
Publisher: name: Singapore Institute of Technology
Year: 2022
Subjects: English and literacy curriculum and pedagogy (excl. LOTE, ESL and TESOL)

description: This exploratory study aimed to examine the perceived importance of written English language and level of competency among undergraduates in a public university in Singapore. The study arose from faculty’s observations and concerns about students’ written English proficiency. The study involved three targeted sample units: undergraduates, faculty and industry partners. These groups were invited to participate in Qualtrics online questionnaires customised for each of them. SPSS Statistics version 25 was used to generate descriptive statistics and perform cross-tabulations. The results from 215 undergraduates, 92 faculty and 110 industry partners suggested that all three sample units agreed on the importance of written English for academic studies and professional work. They differed in observations about undergraduates’ written English competency levels, students’ keenness to improve, and perceived optimism that improvement can be achieved during university studies. Three recommendations are proposed. Firstly, faculty’s written English standard could be enhanced so that they become positive role models for students. Secondly, feedback for student is imperative if English assessment forms part of the marking rubrics. Thirdly, the fundamentals of English language could still be taught at the university level.   The conclusion is that the university can be the last opportunity for undergraduates to improve their English competency before joining the workforce.
On the role of anaxonic local neurons in the crossover to continuously varying exponents for avalanche activity
Creators: name: Rahimi-Majd, M.
name: Seifi, M. A.
name: de Arcangelis, L.
name: Najafi, M. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Local anaxonic neurons with graded potential release are important ingredients of nervous systems, present in the olfactory bulb system of mammalians, in the human visual system, as well as in arthropods and nematodes. We develop a neuronal network model including both axonic and anaxonic neurons and monitor the activity tuned by the following parameters: The decay length of the graded potential in local neurons, the fraction of local neurons, the largest eigenvalue of the adjacency matrix and the range of connections of the local neurons. Tuning the fraction of local neurons, we derive the phase diagram including two transition lines: A critical line separating subcritical and supercritical regions, characterized by power law distributions of avalanche sizes and durations, and a bifurcation line. We find that the overall behavior of the system is controlled by a parameter tuning the relevance of local neuron transmission with respect to the axonal one. The statistical properties of spontaneous activity are affected by local neurons at large fractions and in the condition that the graded potential transmission dominates the axonal one. In this case the scaling properties of spontaneous activity exhibit continuously varying exponents, rather than the mean field branching model universality class.
Direct evidence of ferromagnetism in MnSb2Te4
Creators: name: Ge, Wenbo
name: Sass, Paul M.
name: Yan, Jiaqiang
name: Lee, Seng Huat
name: Mao, Zhiqiang
name: Wu, Weida
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the magnetic imaging of ferromagnetic domains in the van der Waals single crystal MnSb2Te4 from two different sources using cryogenic magnetic force microscopy. The magnetic field dependence of the domains reveals very weak pinning of domain walls in MnSb2Te4, resulting in a negligibly small magnetic hysteresis loop. The temperature dependence of the domain contrast reveals a mean field like behavior, in good agreement with that of bulk magnetization measurements.
The representation of science and scientists on postage stamps
Creators: name: Yardley, Christopher B.
Publisher: name: The Australian National University
Year: 2014
Subjects: subject: Science on postage stamps
subject: Scientists On postage stamps.
subject: Postage stamps as propaganda
subject: Postage stamps Social aspects.
subject: Postage stamps Political aspects.
subject: Postage stamp design History

description: Research into science communication has included books, newspapers, television and radio analysis but no-one has studied science on postage stamps as a communication medium. Yet stamps incorporate a literate and a visual communication message that governments have used to elucidate ideological ideals and policies, for civic education, for nation building and to advise on matters of public health. Within every stamp image is a permanent record that preserves that message information from the date of issue through many generations. This thesis examines the multiple science message roles the stamp has carried from ten representative countries since the first use of the medium. It explores paths and into how and why a country visualises and publicises its place locally and to the outside world. The taxonomy developed is applicable to other disciplines in describing classification of communication themes. 'Science' as represented on postage stamps defines the state of science and technology at a set point in time, the date of issue, and provides a commentary on society and a set of activities, functions or needs. A case study methodology has been used provide examples of the many roles of the stamp message. Half of all science stamps show the science as its main image generally accompanied by a textual description explaining the reason for issue at that particular time. The other half of all science stamps depend upon a named scientist as the focal point of the message. Events and anniversaries are the prompts for many issues. Government's hand is shown when the message is political, is nation-building and often in advising of public health issues. The nature of the image has evolved with time, which time can be related to the development of science communication when science has fragmented and is an increasingly specialist endeavour undertaken by institutions. This study analyses how, through stamp issue, the current perspective of science is shown by the context in step with the movement understood as the public understanding of science evolving into the public awareness of science.
Genetic mutations promoting autonomous B cell proliferation
Creators: name: Mapp, Sally Jane
Publisher: name: The Australian National University
Year: 2013
Subjects: subject: B cells Tumors
subject: Genetics
subject: FOS: Biological sciences
subject: Mutation (Biology)

description: The multi-step nature of neoplastic transformation is relatively well accepted, although the minimum number of genetic perturbations required for the acquisition of a malignant phenotype has not previously been clearly defined. Using retroviral gene transfer, cells harbouring mutated Trp53 in conjunction with overexpressed MYC have been demonstrated to predispose to B cell lymphoma development in mice. We localised retroviral insertion sites in 24 such lymphomas. Many of these integration sites were similar to those identified in other murine models of malignancy. Oncogenes, proto-oncogenes and B cell regulators were over-represented within these common integration sites. cDNAs encoding a selection of genes adjacent to the retroviral insertion sites were engineered into separate retroviral expression vectors under the control of the retroviral enhancer and promoter region to determine if they facilitated B cell transformation. Double transduction of Myb and MYC suggested that the overexpression of Myb and MYC in Trp53 mutated cells is sufficient for autonomous B cell growth in vitro. This novel finding improves understanding of the genetic basis of B cell transformation, and further research based on these findings may provide insights into the pathogenesis and cellular pathways implicated in the development of B cell lymphoma. The recognition that Myb and MYC were the most notable oncogenes implicated in the induction of B-cell lymphoma increases the need and perhaps opportunity to consider experimental strategies that inhibit Myb and/or MYC function and thus may offer new therapeutic approaches to treating such malignancies.
On moment maps associated to a twisted Heisenberg double
Creators: name: Klimcik, Ctirad
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T40

description: We review the concept of the (anomalous) Poisson-Lie symmetry in a way that emphasises the notion of Poisson-Lie Hamiltonian. The language that we develop turns out to be very useful for several applications: we prove that the left and the right actions of a group $G$ on its twisted Heisenberg double $(D,κ)$ realize the (anomalous) Poisson-Lie symmetries and we explain in a very transparent way the concept of the Poisson-Lie subsymmetry and that of Poisson-Lie symplectic reduction. Under some additional conditions, we construct also a non-anomalous moment map corresponding to a sort of quasi-adjoint action of $G$ on $(D,κ)$. The absence of the anomaly of this "quasi-adjoint" moment map permits to perform the gauging of deformed WZW models.
description: 52 pages, LaTeX, introduction substantially enlarged, several explanatory remarks added, final published version
Koch, Kurt Kardinal: Gottes Freude und Freude an Gott
Creators: name: Richter, Manfred
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 69 Nr. 3 (2020): Ökumenische Rundschau, Band 69, Heft 3
Toward an embodied conception of transformative learning
Creators: name: Schlattner, Christine
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study is to discover ways in which transformative learning is embodied. Transformative learning, as described by Mezirow (1991) in "Transformative dimensions of adult learning", is conceived as primarily a cognitive activity centred on critical thinking and rational discourse. I did the research for this study through an exploration of my own shifting sense of self in learning how to fight as a result of participating in a Model Mugging self defence course. I engaged in a reflexive process of remembering my experience and the meaning I gave to the events which took place, paying particular attention to the inter-relation between emotion, thought, kinetic and somatic elements. These reflections were supported by literature in psychology, education, the healing arts, and physiology. The research suggests that meaning perspectives are embodied and that transformation of these sets of beliefs, particularly those regarding sense of self, involves conscious thought, emotional engagement, and physiological and somatic changes. This study has significance for an emerging theoretical construction of transformative learning and for adult educators who facilitate potentially transformative activities.
Letter from Colin C. MacRae to the Manager of the Rainbow Ranche Limited, September 29, 1909
Creators: name: MacRae, Colin C.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to the manager of Rainbow Ranche Ltd. from Colin C. MacRae, manager of the Royal Bank Vernon branch, dated September 29, 1909, regarding recommendation for him to apply for a line of credit.
Calculation of, and bounds for, the multipole moments of stationary spacetimes
Creators: name: Bäckdahl, Thomas
name: Herberthson, Magnus
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper the multipole moments of stationary asymptotically flat spacetimes are considered. We show how the tensorial recursion of Geroch and Hansen can be replaced by a scalar recursion on R^2. We also give a bound on the multipole moments. This gives a proof of the "necessary part" of a long standing conjecture due to Geroch.
description: 11 pages
Error-robust quantum logic optimization using a cloud quantum computer interface
Creators: name: Carvalho, Andre R. R.
name: Ball, Harrison
name: Biercuk, Michael J.
name: Hush, Michael R.
name: Thomsen, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe an experimental effort designing and deploying error-robust single-qubit operations using a cloud-based quantum computer and analog-layer programming access. We design numerically-optimized pulses that implement target operations and exhibit robustness to various error processes including dephasing noise, instabilities in control amplitudes, and crosstalk. Pulse optimization is performed using a flexible optimization package incorporating a device model and physically-relevant constraints (e.g. bandwidth limits on the transmission lines of the dilution refrigerator housing IBM Quantum hardware). We present techniques for conversion and calibration of physical Hamiltonian definitions to pulse waveforms programmed via Qiskit Pulse and compare performance against hardware default DRAG pulses on a five-qubit device. Experimental measurements reveal default DRAG pulses exhibit coherent errors an order of magnitude larger than tabulated randomized-benchmarking measurements; solutions designed to be robust against these errors outperform hardware-default pulses for all qubits across multiple metrics. Experimental measurements demonstrate performance enhancements up to: $\sim10\times$ single-qubit gate coherent-error reduction; $\sim5\times$ average coherent-error reduction across a five qubit system; $\sim10\times$ increase in calibration window to one week of valid pulse calibration; $\sim12\times$ reduction gate-error variability across qubits and over time; and up to $\sim9\times$ reduction in single-qubit gate error (including crosstalk) in the presence of fully parallelized operations. Randomized benchmarking reveals error rates for Clifford gates constructed from optimized pulses consistent with tabulated $T_{1}$ limits, and demonstrates a narrowing of the distribution of outcomes over randomizations associated with suppression of coherent-errors.
description: Main text pp. 1-13, Appendix pp. 14-22, 9 figures
Multivariate Time Series Analysis of Physiological and Clinical Data
Creators: name: Ordonez, Patricia
Publisher: name: Maryland Shared Open Access Repository
Year: 2012
Subjects: biomedical informatics
classification
clinical informatics
data visualization
multivariate time series

description: The complexity and volume of collected medical data is greater now than at any point in the history of medicine. Medical providers are expected to examine large volumes of data and identify correlations among parameters based on their own clinical experience to detect significant medical events or conditions.  The information overload that providers may face may hinder the diagnostic process cite{heldt2006}. Most existing visualizations of the data to assist the provider in analyzing the information consist of a table or plot of values for a particular parameter as a function of time.  Automated techniques for discovering these correlations not only may assist the provider in making a diagnosis but may help to identify hidden patterns within the data associated with specific medical conditions or events.  Current visualization and machine learning techniques show promise for extracting this information. This dissertation presents three novel representations and two visualizations to assist in the analysis of multivariate time series data.  It focuses on physiological and clinical data, in particular, because this type of data captures the complexity of a human being and thus the multivariate time series are more interdependent and better synchronized than most that measure the state of an entity. The three representations are the Multivariate Time Series Amalgam (MTSA), the Stacked Bags-of-Patterns (Stacked BoP), and the Multivariate Bag-of-Patterns (Multivariate BoP). Each provides an integrated, multivariate approach for representing multivariate time series data. An evaluation of the latter two techniques against two techniques that use univariate techniques of multiple variables, Ensemble Voting with Bag-of-Patterns and Multivariate Piecewise Dynamic Time Warping in six diverse datasets yields interesting insights into the classification of multivariate time series. The MTSA representation is the foundation for two visualizations - the MTSA Visualization and the Fixed Dual MTSA Visualization.  These animated visualizations capture the rate of change of provider-selected parameters and the relationships among them. While both visualizations were created for the medical domain, they generalize to domains where multiple variables measure the state of an entity as a function of time. An evaluation of the Fixed Dual MTSA Visualization was carried out with 23 pediatric residents at Johns Hopkins University School of Medicine. The results indicate that the visualization merits further investigation for use as a diagnostic tool.
Three-Spin Giant Magnons in AdS_5xS^5
Creators: name: Ryang, Shijong
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: From the Polyakov string action using a conformal gauge we construct a three-spin giant magnon solution describing a long open string in AdS_5 \times S^5 which rotates both in two angular directions of S^5 and in one angular direction of AdS_5. Through the Virasoro constraints the string motion in AdS_5 takes an effect from the string configuration in S^5. The dispersion relation of the soliton solution is obtained as a superposition of two bound states of magnons. We show that there is a correspondence between a special giant magnon in AdS_2 and the sinh-Gordon soliton.
description: 12 pages, LaTeX, no figures
Multicast Data Security in PIM-SM
Creators: name: Shaikh, Aafreen
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: multicast
PIM-SM

description: Multicast has been a topic of research for over two decades , emerging from drawbacks in unicast and broadcast networks. In multicast, users can be part of specific groups and communicate group information amongst themselves besides being part of a larger network. There has been successful research in its addressing system, architecture, routing protocols, but security continues to remain an area which needs more attention. Security in multicast is more complicated as compared to unicast, as latter deals with only a pair of senders and receivers against multicast, dealing with 1:1 or 1:N or N:N senders and receivers. Maintaining security in such dynamic networks, is one of the most important challenges amongst research groups. Today, many key management schemes or security architectures have been proposed and standardized, but have not been applied to all existing multicast protocols. With ever increasing demand of multicast in commercial and military applications, it is important to have a more reliable, trustworthy and secure group to communicate. This thesis, investigates a solution for data message security in one of the widely used multicast protocols, PIM-SM (Protocol Independent Multicast - Sparse Mode). PIM-SM is more vulnerable in terms of security as it supports members scattered throughout a network or spanning over a wide area. Currently, PIM-SM specification suggests security for its control messages but does not support any security for data messages exchanged within a group. We propose using a standard key management protocol GSAKMP (Group Secure Association Key Management Protocol) for a more efficient and secured multicast protocol. The thesis initially discusses data security concerns in PIM-SM. It provides a concept of operation explaining integration of PIM-SM and GSAKMP to develop data security between senders and multicast group members in PIM-SM. The solution maintains individual architectures and explains how the two can be used as a combined architecture.
Modeling Trust and Influence on Blogosphere using Link Polarity
Creators: name: Kale, Anubhav Vishwas
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Computer Science (0984)

description: There is a growing interest in exploring the role of social networks for understanding how communities and individuals spread influence. The key contribution of our work is generation of a fully-connected polar social network graph from the sparsely connected social network graph in the context of blogs, where the vertex represents a blogger and the weight of an edge in the polar network represents the bias/trust/distrust between its connecting vertices (the source and destination bloggers). Our approach uses the link structure of blog graph to associate sentiments with the links connecting two blogs. We use trust propagation models to spread this sentiment from a subset of connected blogs to other blogs to generate the fully connected polar blog graph. Our experimental validation on determining ""like minded"" blogs on the political blogosphere demonstrates the potential of using polar links for more generic problems such as detecting trustworthy nodes in web graphs.
Aspects of Holography of Taub-NUT-AdS4
Creators: name: Kalamakis, Georgios
name: Leigh, Robert G.
name: Petkou, Anastasios C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we consider aspects of the holographic interpretation of Taub-NUT-AdS$_4$. We review our earlier results which show that TNAdS$_4$ gives rise to a holographic three-dimensional conformal fluid having constant vorticity. We then study the holographic relevance of the Misner string by considering bulk scalar fluctuations. The scalar fluctuations organize naturally into representations of the $SU(2)\times \mathbb{R}$ isometry algebra. If we require the string's invisibility we obtain a Dirac-like quantization relating the frequency of the scalar field modes to the NUT charge. As the latter quantity determines the total vorticity flux of the boundary fluid, we argue that such an assumption allows for a holographic interpretation of TNAdS$_4$ as a {\it non-dissipative} superfluid whose excitations are quantized vortices. Alternatively, if we regard the Misner string as a physical object, as has recently been advocated for thermodynamically, the aforementioned quantization conditions are removed, and we find that TNAdS$_4$ corresponds to a holographic fluid whose dissipative properties are probed as usual by the complex quasinormal modes of the bulk fluctuations. We show that such quasinormal modes are, perhaps surprisingly, organized into infinite-dimensional non-unitary representations of the isometry algebra.
Galilean Exotic Planar Supersymmetries and Nonrelativistic Supersymmetric Wave Equations
Creators: name: Lukierski, J.
name: Prochnicka, I.
name: Stichel, P. C.
name: Zakrzewski, W. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe the general class of $N$-extended $D=(2+1)$ Galilean supersymmetries obtained, respectively, from the $N$-extended D=3 Poincaré superalgebras with maximal sets of central charges. We confirm the consistency of supersymmetry with the presence of the `exotic' second central charge $θ$. We show further how to introduce a N=2 Galilean superfield equation describing nonrelativistic spin 0 and spin 1/2 free particles.
description: LaTeX, 15 pages, version which appears in PLB
Hallesleben, Barbara (Hrsg.): Orthodoxe Kirche in der Ukraine - Wohin?
Creators: name: Hammes, Verena
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 69 Nr. 3 (2020): Ökumenische Rundschau, Band 69, Heft 3
Signal-to-noise ratio of phase sensing telescope interferometers
Creators: name: Henault, Francois
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This paper is the third part of a trilogy dealing with the principles, performance and limitations of what I named "Telescope-Interferometers" (TIs). The basic idea consists in transforming one telescope into a Wavefront Error (WFE) sensing device. This can be achieved in two different ways, namely the off axis and phase-shifting TIs. In both cases the Point-Spread Function (PSF) measured in the focal plane of the telescope carries information about the transmitted WFE, which is retrieved by fast and simple algorithms suitable to an Adaptive Optics (AO) regime. Herein are evaluated the uncertainties of both types of TIs, in terms of noise and systematic errors. Numerical models are developed in order to establish the dependence of driving parameters such as useful spectral range, angular size of the observed star, or detector noise on the total WFE measurement error. The latter is found particularly sensitive to photon noise, which rapidly governs the achieved accuracy for telescope diameters higher than 10 m. We study a few practical examples, showing that TI method is applicable to AO systems on telescope diameters ranging from 10 to 50 m, depending on seeing conditions and magnitude of the observed stars. We also discuss the case of a space-borne coronagraph where TI technique provides high sampling of the input WFE map.
description: 25 pages, 15 figures
Learning strategies of early British Columbia divers
Creators: name: Cuthill, John Bryan
Publisher: name: University of British Columbia
Year: 2009

description: This study examined the informal learning strategies of individuals who were among the first to belong to the original small group of British Columbian recreational divers. These individuals included breath-hold divers, users of Oxygen Re-breathers, and users of Self Contained Underwater Breathing Apparatus (scuba). Through the narratives provided by the divers themselves and other corroborative evidence, this qualitative investigation looked at who the divers were and how they approached learning to dive in this context of informal learning: that is, how they learned about and acquired the skills and knowledge needed for diving, and the changes in attitude and aspirations they acquired which stemmed from those learning activities.
Perturbative deflection angle, gravitational lensing in the strong field limit and the black hole shadow
Creators: name: Jia, Junji
name: Huang, Ke
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A perturbative method to compute the deflection angle of both timelike and null rays in arbitrary static and spherically symmetric spacetimes in the strong field limit is proposed. The result takes a quasi-series form of $(1-b_c/b)$ where $b$ is the impact parameter and $b_c$ is its critical value, with coefficients of the series explicitly given. This result also naturally takes into account the finite distance effect of both the source and detector, and allows to solve the apparent angles of the relativistic images in a more precise way. From this, the BH angular shadow size is expressed as a simple formula containing metric functions and particle/photon sphere radius. The magnification of the relativistic images were shown to diverge at different values of the source-detector angular coordinate difference, depending on the relation between the source and detector distance from the lens. To verify all these results, we then applied them to the Hayward BH spacetime, concentrating on the effects of its charge parameter $l$ and the asymptotic velocity $v$ of the signal. The BH shadow size were found to decrease slightly as $l$ increase to its critical value, and increase as $v$ decreases from light speed. For the deflection angle and the magnification of the images however, both the increase of $l$ and decrease of $v$ will increase their values.
description: 13 pages, 5 figures;
Discovery of Water Maser Emission in Five AGN and a Possible Correlation Between Water Maser and Nuclear 2-10 keV Luminosities
Creators: name: Kondratko, Paul T.
name: Greenhill, Lincoln J.
name: Moran, James M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of water maser emission in five active galactic nuclei (AGN) with the 100-m Green Bank Telescope (GBT). The positions of the newly discovered masers, measured with the VLA, are consistent with the optical positions of the host nuclei to within 1 sigma (0.3 arcsec radio and 1.3 arcsec optical) and most likely mark the locations of the embedded central engines. The spectra of three sources, 2MASX J08362280+3327383, NGC 6264, and UGC 09618 NED02, display the characteristic spectral signature of emission from an edge-on accretion disk with maximum orbital velocity of ~700, ~800, and ~1300 km s^-1, respectively. We also present a GBT spectrum of a previously known source MRK 0034 and interpret the narrow Doppler components reported here as indirect evidence that the emission originates in an edge-on accretion disk with orbital velocity of ~500 km s^-1. We obtained a detection rate of 12 percent (5 out of 41) among Seyfert 2 and LINER systems with 10000 km s^-1 < v_sys < 15000 km s^-1. For the 30 nuclear water masers with available hard X-ray data, we report a possible relationship between unabsorbed X-ray luminosity (2-10 keV) and total isotropic water maser luminosity, L_{2-10} proportional to L_{H2O}^{0.5+-0.1}, consistent with the model proposed by Neufeld and Maloney in which X-ray irradiation and heating of molecular accretion disk gas by the central engine excites the maser emission.
description: 16 pages, 5 tables, 3 figures, to appear in the November 10, 2006, v651n2 issue of the Astrophysical Journal
Supersymmetric Mechanics in Superspace
Creators: name: Bellucci, S.
name: Krivonos, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: These Lectures have been given at Laboratori Nazionali di Frascati in the month of March, 2005. The main idea was to provide our young collegues, who joined us in our attempts to understand the structure of $N$-extended supersymmetric one-dimensional systems, with short descriptions of the methods and techniques we use. This was reflected in the choice of material and in the style of presentation. We base our treatment mainly on the superfield point of view. Moreover, we prefer to deal with N=4 and N=8 superfields. At present, the exists an extensive literature on the components approach to extended supersymmetric theories in $d=1$ while the manifestly supersymmetric formulation in terms of properly constrained superfields is much less known. Nevertheless, we believe that just such formulations are preferable. In order to make these Lectures more or less self-consistent, we started from the simplest examples of one-dimensional supersymmetric theories and paid a lot of attention to the peculiarities of $d=1$ supersymmetry. From time to time we presented the calculations in a very detailed way. In other cases we omitted the details and gave only the final answers. In any case these Lectures cannot be considered as a textbook in any respect. They can be considered as our personal point of view on the one-dimensional superfield theories and on the methods and techniques we believe to be important. Especially, all this concerns Section 3, were we discuss the nonlinear realizations method. We did not present any proofs in this Section. Instead we focused on the details of calculations. Finally, we apologize for the absolutely incomplete list of References.