cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Keep your hands to yourself and use your words : a condescendingly titled exploration of what helps and hinders people with visual impairments while receiving unsolicited help from sighted people
Creators: name: Heaslip, Sean Richard
Publisher: name: University of British Columbia
Year: 2024

description: Persons with visual impairments are frequently the recipients of unsolicited help. Research on the subject of intergroup helping and the power dynamics involved has proliferated over the past three decades, capturing a more nuanced picture of helping as an interaction between unequal parties, rather than a discrete benevolent act towards someone in need. One group that has gone under-considered with respect to the impact of intergroup relations is persons with disabilities, and specifically persons with visual impairments. The present study is an exploratory qualitative investigation of unsolicited helping interactions that centres the lived experience of the recipients. Twelve persons with visual impairments participated in semi-structured interviews using the enhanced critical incident technique (ECIT). Much of the research on unsolicited helping targets specifically unwelcome help (e.g., overhelping, inappropriate, unwanted help, patronizing, and assumptive help), however, the present study allowed for the presence of welcomed unsolicited helping. The ECIT is a method well-suited for the exploration of under-researched topics, and has been used with marginalized groups in the past. In this study, it was used in the exploration of what helped, hindered, or what would have been helpful to persons with visual impairments when navigating unsolicited helping interactions. Results highlight aspects of unsolicited helping interactions as experienced by the recipient, and incidents and Wishlist items specific to the helper’s approach, and the recipient’s response that centre on themes of the role of assumptions, the importance of consent, and being treated with courtesy, consideration, and respect. Findings are discussed with an eye towards generating recommendations for helpers, strategies employed by recipients with visual impairments, and implications for policy, practice, and future research.
The environmental dependence of the red galaxy sequence
Creators: name: Martinez, Hector J.
name: Coenda, Valeria
name: Muriel, Hernan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The dependence of the sequence of red galaxies (RS) with the environment is investigated using field, group, and cluster galaxies drawn from the SDSS. Our work focuses in studying the mean colour ($μ_R$) and the scatter ($σ_R$) of the RS as a function absolute magnitude in different environments characterised either by the mass of the system in which the galaxies are located or by the distance to the system's centre. The same analysis is carried out using red early type galaxies. For a given luminosity, $μ_R$ of field galaxies is bluer and $σ_R$ is larger than their group and cluster counterparts irrespective of mass and position within the systems. Among systems of galaxies, high mass groups and clusters have the reddest $μ_R$ and the smallest $σ_R$. These differences almost disappear when red early type galaxies alone are considered. Galaxies in the core and in the outskirts of groups have similar $μ_R$, whereas galaxies in clusters show a strong dependence on cluster centric distance. Red early type galaxies in the outskirts of clusters have $σ_R$ values as large as field galaxies', while galaxies in the inner regions of clusters have lower values. We find that bright red early type galaxies have reached nearly the same evolutionary stage in all environments. Our results suggest that the cluster environment is not necessary to populate the RS. We propose a scenario in which the RS in massive systems is populated by two different star formation history galaxies: red early type galaxies that formed the bulk of their stars during the early stages of massive halo assembly, and red galaxies that passed most of their lives inhabiting poor groups or the field and fell into massive systems at lower redshifts.
description: 8 pages, 7 figures, accepted in MNRAS
Evolution of the dynamical pairing across the phase diagram of a strongly correlated high-temperature superconductor
Creators: name: Civelli, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the dynamics of the Cooper pairing across the T=0 phase diagram of the two-dimensional Hubbard Model, relevant for high-temperature superconductors, using a cluster extension of dynamical mean field theory. We find that the superconducting pairing function evolves from an unconventional form in the over-doped region into a more conventional boson-mediated retarded form in the under-doped region of the phase diagram. The boson, however, promotes the rise of a pseudo-gap in the electron density of states rather than a superconducting gap as in the standard theory of superconductivity. We discuss our results in terms of Mott-related phenomena, and we show that they can be observed in tunneling experiments.
description: 4.1 pages, 3 figures, revised version for publication
Thermal expansion of LaFeAsO: Evidence for high-temperature fluctuations
Creators: name: Wang, L.
name: Kohler, U.
name: Leps, N.
name: Kondrat, A.
name: Nale, M.
name: Gasparini, A.
name: de Visser, A.
name: Behr, G.
name: Hess, C.
name: Klingeler, R.
name: Buchner, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present measurements of the thermal expansion coefficient alpha of polycrystalline LaFeAsO1-xFx (x <= 0.1). The magnetic and structural transitions of the samples with x <= 0.04 give rise to large anomalies in alpha(T), while the onset of superconductivity in the crystals with x >= 0.05 is not resolved. Above the structural transition, the thermal expansion coefficient of LaFeAsO is significantly enhanced. This is attributed to fluctuations, which also affect the electrical transport properties of the compound. The complete absence of these fluctuations in the superconducting samples even for x = 0.05 is taken as evidence for an abrupt first-order type of suppression of the structural and magnetic transitions upon F doping.
description: 6 pages, submitted to Phys. Rev. B
Additional file 3 of Effect of intubation in the lateral position under general anesthesia induction on the position of double-lumen tube placement in patients undergoing unilateral video-assisted thoracic surgery: study protocol for a prospective, single-center, parallel group, randomized, controlled trial
Creators: name: Zhang, Xi
name: Wang, Dong-Xu
name: Zhang, Qin
name: Shen, Qi-Bin
name: Tong, Fei
name: Hu, Yong-He
name: Zhang, Zhen-Duo
name: Liu, Fei-Fan
name: Tang, Ya-Wen
name: Chen, Juan-Li
name: Liu, He
name: Zhou, Feng
name: Hu, Si-Ping
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3. Informed consent form.
A model of force balance in Saturn's magnetodisc
Creators: name: Achilleos, N.
name: Guio, P.
name: Arridge, C. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We present calculations of magnetic potential associated with the perturbation of Saturn's magnetic field by a rotating, equatorially-situated disc of plasma. Such structures are central to the dynamics of the rapidly rotating magnetospheres of Saturn and Jupiter. They are `fed' internally by sources of plasma from moons such as Enceladus (Saturn) and Io (Jupiter). We use a scaled form of Euler potentials for the Jovian magnetodisc field (Caudal, 1986). In this formalism, the magnetic field is assumed to be azimuthally symmetric about the planet's axis of rotation, and plasma temperature is constant along a field line. We perturb the dipole potential by using simplified distributions of plasma pressure and angular velocity for both planets, based on observations by Cassini (Saturn) and Voyager (Jupiter). Our results quantify the degree of radial `stretching' exerted on the dipolar field lines through the plasma's rotational motion and pressure. A simplified version of the field model, the `homogeneous disc', can be used to easily estimate the distance of transition in the outer magnetosphere between pressure-dominated and centrifugally-dominated disc structure. We comment on the degree of equatorial confinement as represented by the scale height associated with disc ions of varying mass and temperature. For Saturn, we identify the principal forces which contribute to the magnetodisc current and make comparisons between the field structure predicted by the model and magnetic field measurements from Cassini. For Jupiter, we reproduce Caudal's original calculation in order to validate our model implementation. We also show that compared to Saturn, where plasma pressure gradient is, on average, weaker than centrifugal force, the outer plasmadisc of Jupiter is clearly a pressure-dominated structure.
description: 24 pages, 15 figures, 2 tables; accepted for publication in MNRAS
Relaxation dynamics of integrable field theories after a global quantum quench
Creators: name: Di Salvo, Emanuele
name: Schuricht, Dirk
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the linked cluster expansion as well as the quench action approach to study the time evolution of one-point functions after a quantum quench in integrable field theories. We argue that the relaxation towards the stationary value fundamentally differs depending on the locality properties of the considered observable: while for local operators both exponential and power-law decaying terms are present in the dynamics, for semi-local operators the latter are absent. We explicitly confirm this for the Ising field theory, the sinh-Gordon model, and the repulsive sine-Gordon model.
description: 43 pages
Additional file 3 of Upregulated complement receptors correlate with Fc gamma receptor 3A-positive natural killer and natural killer-T cells in neuromyelitis optica spectrum disorder
Creators: name: Nishiyama, Shuhei
name: Wright, Amy E.
name: Lotan, Itay
name: Mikami, Takahisa
name: Paul, Friedemann
name: Aoki, Masashi
name: Levy, Michael
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3: Table S1: Spearman correlation analysis for the NMOSD group between the parameters. n.s.: not significant; *: p < 0.05; **: p < 0.01; ***: p < 0.001; ****: p < 0.0001.
Triggering up states in all-to-all coupled neurons
Creators: name: Ngo, Hong-Viet V.
name: Köhler, Jan
name: Mayer, Jörg
name: Claussen, Jens Christian
name: Schuster, Heinz Georg
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Slow-wave sleep in mammalians is characterized by a change of large-scale cortical activity currently paraphrased as cortical Up/Down states. A recent experiment demonstrated a bistable collective behaviour in ferret slices, with the remarkable property that the Up states can be switched on and off with pulses, or excitations, of same polarity; whereby the effect of the second pulse significantly depends on the time interval between the pulses. Here we present a simple time discrete model of a neural network that exhibits this type of behaviour, as well as quantitatively reproduces the time-dependence found in the experiments.
description: epl Europhysics Letters, accepted (2010)
Superallowed 0+ to 0+ nuclear beta decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model
Creators: name: Hardy, J. C.
name: Towner, I. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A new critical survey is presented of all half-life, decay-energy and branching-ratio measurements related to 20 0+ to 0+ beta decays. Compared with our last review, there are numerous improvements: First, we have added 27 recently published measurements and eliminated 9 references; of particular importance, the new data include a number of high-precision Penning-trap measurements of decay energies. Second, we have used the recently improved isospin symmetry-breaking corrections. Third, our calculation of the statistical rate function now accounts for possible excitation in the daughter atom. Finally, we have re-examined the systematic uncertainty associated with the isospin symmetry-breaking corrections by evaluating the radial-overlap correction using Hartree-Fock radial wave functions and comparing the results with our earlier calculations, which used Saxon-Woods wave functions; the provision for systematic uncertainty has been changed as a consequence. The new corrected Ft values are impressively constant and their average, when combined with the muon liftime, yields the up-down quark-mixing element of the Cabibbo-Kobayashi-Maskawa (CKM) matrix, V_{ud} = 0.97425(22). The unitarity test on the top row of the matrix becomes |V_{ud}|^2 + |V_{us}|^2 + |V_{ub}|^2 = 0.99995(61). Both V_{ud} and the unitarity sum have significantly reduced uncertainties compared with our previous survey, although the new value of V_{ud} is statistically consistent with the old one. From these data we also set limits on the possible existence of scalar interactions, right-hand currents and extra Z bosons. Finally, we discuss the priorities for future theoretical and experimental work with the goal of making the CKM unitarity test even more definitive.
description: 36 pages, 11 tables, 9 figures
Finite thin disc models of four galaxies in the Ursa Major cluster: NGC3877, NGC3917, NGC3949 and NGC4010
Creators: name: González, Guillermo A.
name: Plata-Plata, Sandra M.
name: Ramos-Caro, Javier
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Finite thin disc models of four galaxies in the Ursa Major cluster are presented. The models are obtained by means of the Hunter method and the particular solutions are choosen in such a way that the circular velocities are adjusted very accurately to the observed rotation curves of some specific spiral galaxies. We present particular models for the four galaxies NGC3877, NGC3917, NGC3949 and NGC4010 with data taken from the recent paper by Verheijen & Sancici (2001). By integrating the corresponding surface mass densities, we obtain the total mass M of these four galaxies, all of them being of the order of 10^10 solar masses. These obtained values for M may be taken as a quite accurately estimative of the mass upper bound of these galaxies, since in the model was considered that all their mass was concentrated at the galactic disc. The models can be consider as a first approximation to the obtaining of quite realistic models of spiral galaxies
description: Submitted to MNRAS
Leptonic signatures for SUSY at the LHC
Creators: name: Baer, Howard
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Most models of weak scale supersymmetry (SUSY) predict observable rates for production of SUSY matter at the CERN LHC. The SUSY collider events are expected to be rich in jets, isolated (and non-isolated) leptons and missing E_T. After first discussing the merits of mixed axion/axino vs. neutralino cold dark matter in SUSY models, I then survey prospects for detecting SUSY matter at the LHC via leptonic signatures. In the paradigm mSUGRA model, cascade decays of gluinos and squarks should yield high rates for multi-jet plus multi-lepton events, allowing values of m_{\tg}\sim 3 (1.8) TeV to be probed for m_{\tq}\simeq m_{\tg} (m_{\tq}\gg m_{\tg}) with 100 fb^{-1} of integrated luminosity. Direct production of gauginos and sleptons should also be possible in limited regions of parameter space. Even in the first year of LHC running, observable signals in multi-muon plus jets channel (without cutting on missing E_T) can occur for interesting ranges of parameters. The highly motivated Yukawa unified SUSY models-- where the dark matter is expected to be of mixed axion/axino type-- should likely be testable in the first year of LHC running due to large rates for gluino pair production followed by cascade decays.
description: 10 pages; Plenary talk presented at the 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY09) at Northeastern University, Boston, MA, 5-10 June, 2009
Implementation of the quantum walk step operator in lateral quantum dots
Creators: name: van Hoogdalem, K. A.
name: Blaauboer, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a physical implementation of the step operator of the discrete quantum walk for an electron in a one-dimensional chain of quantum dots. The operating principle of the step operator is based on locally enhanced Zeeman splitting and the role of the quantum coin is played by the spin of the electron. We calculate the probability of successful transfer of the electron in the presence of decoherence due to quantum charge fluctuations, modeled as a bosonic bath. We then analyze two mechanisms for creating locally enhanced Zeeman splitting based on, respectively, locally applied electric and magnetic fields and slanting magnetic fields. Our results imply that a success probability of > 90% is feasible under realistic experimental conditions.
Microwave driven arbitrary coupling between trapped charge resonances in a silicon single electron transistor
Creators: name: Erfani, Morteza
name: Hasko, David G.
name: Rossi, Alessandro
name: Cho, Wan Sik
name: Choi, Jung-Bum
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In quantum computation, information is processed by gates that must coherently couple separate qubits. In many systems the qubits are naturally coupled, but such an always-on interaction limits the algorithms that may be implemented. Coupling interactions may also be directed in devices and circuits that are provided with additional control wiring. This can be achieved by adjusting the gate voltage in a semiconductor device or an additional flux in a superconducting device. Such control signals must be applied adiabatically (limiting the speed) and the additional wiring provides pathways for noise, which leads to decoherence. Here we demonstrate an alternative approach to coupling by exploiting the nonlinear behaviour of a degenerately doped silicon transistor. A single transistor can exhibit a large number of individual resonances, which are seen as changes in the source-drain current of a dc-biased device. These resonances may be addressed in frequency space due to their high quality factors. Two widely separated resonances are addressed and coupled in three-frequency spectroscopy by ensuring that the third frequency corresponds to the difference between the two individual resonances. The nonlinearity causes the generation of additional driving signals with appropriate frequency and phase relationships to ensure coupling, resulting in additional spectroscopic features that could be exploited for rapid state manipulation and gate operations.
description: 6 pages, 3 figures
The TAOS Project Stellar Variability I. Detection of Low-Amplitude delta Scuti Stars
Creators: name: Kim, D. -W.
name: Protopapas, P.
name: Alcock, C.
name: Byun, Y. -I.
name: Kyeong, J.
name: Lee, B. -C.
name: Wright, N. J.
name: Axelrod, T.
name: Bianco, F. B.
name: Chen, W. -P.
name: Coehlo, N. K.
name: Cook, K. H.
name: Dave, R.
name: King, S. -K.
name: Lee, T.
name: Lehner, M. J.
name: Lin, H. -C.
name: Marshall, S. L.
name: Porrata, R.
name: Rice, J. A.
name: Schwamb, M. E.
name: Wang, J. -H.
name: Wang, S. -Y.
name: Wen, C. -Y.
name: Zhang, Z. -W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyzed data accumulated during 2005 and 2006 by the Taiwan-American Occultation Survey (TAOS) in order to detect short-period variable stars (periods of
description: Accepted for publication in AJ
OLDER FEMALES' ROMANTIC RELATIONSHIPS LATER IN LIFE: THE IMPLICATIONS OF RELATIONAL REWARDS, COSTS, SATISFACTION, AND COMMITMENT
Creators: name: Heaton, Elizabeth
Publisher: name: Zenodo
Year: 2023
Subjects: rewards
costs
satisfaction
commitment
companionship
intimacy

description: This research utilizes a qualitative approach to examine re-partnered relationships of females aged 60 to 85 to understand older females' experiences of intimate romantic connections formed in the latter part of the life course. Social exchange theory (SET) was used as the theoretical framework to inform this research. The study utilizes one-on-one semi-structured interviews with seventeen older females to elicit stories and viewpoints of newly formed late-life romantic relationships following the death or divorce of a spouse. The study’s purpose is twofold: 1) to extend existing interpersonal communication research by investigating romantic relationships through the lived experiences of older females, and 2) to understand the ways older females conceptualize romantic relationships later in life. An iterative, thematic analysis of the interviews identified how relational rewards, specifically experiential, emotional, benevolent, and physical intimacy, are not mutually exclusive but are interconnected and positively contribute to older females’ relational satisfaction in romantic relationships formed later in life. Additionally, the findings illustrate how the paradoxical structure of time creates a dichotomy that is central to understanding relational commitment. These findings extend the literature on SET, relational rewards, satisfaction, and commitment.
An Efficient Adaptive Distributed Space-Time Coding Scheme for Cooperative Relaying
Creators: name: Abouei, Jamshid
name: Bagheri, Hossein
name: Khandani, Amir K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A non-regenerative dual-hop wireless system based on a distributed space-time coding strategy is considered. It is assumed that each relay retransmits an appropriately scaled space-time coded version of its received signal. The main goal of this paper is to investigate a power allocation strategy in relay stations, which is based on minimizing the outage probability. In the high signal-to-noise ratio regime for the relay-destination link, it is shown that a threshold-based power allocation scheme (i.e., the relay remains silent if its channel gain with the source is less than a prespecified threshold) is optimum. Monte-Carlo simulations show that the derived on-off power allocation scheme performs close to optimum for finite signal-to-noise ratio values. Numerical results demonstrate a dramatic improvement in system performance as compared to the case that the relay stations forward their received signals with full power. In addition, a hybrid amplify-and-forward/detect-and-forward scheme is proposed for the case that the quality of the source-relay link is good. Finally, the robustness of the proposed scheme in the presence of channel estimation errors is numerically evaluated.
description: submitted to IEEE Transactions on Wireless Communications (24 pages)
A quantitative criteria for the coincidence problem
Creators: name: Zhang, Hongsheng
name: Yu, Heng
name: Zhu, Zong-Hong
name: Gong, Yungui
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cosmic coincidence problem is a serious challenge to dark energy model. We suggest a quantitative criteria for judging the severity of the coincidence problem. Applying this criteria to three different interacting models, including the interacting quintessence, interacting phantom, and interacting Chaplygin gas models, we find that the interacting Chaplygin gas model has a better chance to solve the coincidence problem. Quantitatively, we find that the coincidence index C for the interacting Chaplygin gas model is smaller than that for the interacting quintessence and phantom models by six orders of magnitude.
description: 6 pages, 3 figures, accepted for publication in Phys.Lett.B
Phase-diffusion dynamics in weakly coupled Bose-Einstein condensates
Creators: name: Boukobza, Erez
name: Chuchem, Maya
name: Cohen, Doron
name: Vardi, Amichay
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the phase-sensitivity of collisional phase-diffusion between weakly coupled Bose-Einstein condensates, using a semiclassical picture of the two-mode Bose-Hubbard model. When weak-coupling is allowed, zero relative phase locking is attained in the Josephson-Fock transition regime, whereas a $π$ relative phase is only locked in Rabi-Josephson point. Our analytic semiclassical estimates agree well with the numerical results.
description: 5 pages, 4 figures
Autonomic management of multiple non-functional concerns in behavioural skeletons
Creators: name: Aldinucci, Marco
name: Danelutto, Marco
name: Kilpatrick, Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: D.1.3; F.1.1; D.2.2; D.2.3

description: We introduce and address the problem of concurrent autonomic management of different non-functional concerns in parallel applications build as a hierarchical composition of behavioural skeletons. We first define the problems arising when multiple concerns are dealt with by independent managers, then we propose a methodology supporting coordinated management, and finally we discuss how autonomic management of multiple concerns may be implemented in a typical use case. The paper concludes with an outline of the challenges involved in realizing the proposed methodology on distributed target architectures such as clusters and grids. Being based on the behavioural skeleton concept proposed in the CoreGRID GCM, it is anticipated that the methodology will be readily integrated into the current reference implementation of GCM based on Java ProActive and running on top of major grid middleware systems.
description: 20 pages + cover page
Mobile application coverage : the 30% curse and ways forward
Creators: name: Akinotcho, Faridah
Publisher: name: University of British Columbia
Year: 2025

description: Testing, security analysis, and other dynamic quality assurance approaches rely on mechanisms that invoke software under test, aiming to achieve high code coverage. A large number of invocation mechanisms proposed in the literature, in particular for Android mobile applications, employ Graphical User Interface (GUI)-driven application exploration. However, studies show that even the most advanced GUI exploration techniques can cover only around 30% of a real-world application. With extensive effort being invested into GUI exploration strategies, in this thesis, we factored out GUI-related issues by having skilled human analysts perform a thorough manual exploration on a number of large and popular Google Play applications. To our surprise, coverage achieved by humans exceeded that of the automated tools by only a small fraction. The main reasons preventing human analysts from covering the entire application include application dependencies on device characteristics, remote servers, and external resources. We further explore characteristics of these dependencies and discuss the applicability of dynamic techniques that extend beyond GUI exploration, i.e., that involve various forms of alterations to the application’s ecosystem, to bypass these dependencies. Based on our analysis, we outline possible future research directions for improving application coverage, such as developing adaptive exploration strategies that determine when and how to bypass dependencies.
Quantum key distribution and 1 Gbit/s data encryption over a single fibre
Creators: name: Eraerds, Patrick
name: Walenta, Nino
name: Legre, Matthieu
name: Gisin, Nicolas
name: Zbinden, Hugo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We perform quantum key distribution (QKD) in the presence of 4 classical channels in a C-band dense wavelength division multiplexing (DWDM) configuration using a commercial QKD system. The classical channels are used for key distillation and 1 Gbps encrypted communication, rendering the entire system independent from any other communication channel than a single dedicated fibre. We successfully distil secret keys over fibre spans of up to 50 km. The separation between quantum channel and nearest classical channel is only 200 GHz, while the classical channels are all separated by 100 GHz. In addition to that we discuss possible improvements and alternative configurations, for instance whether it is advantageous to choose the quantum channel at 1310 nm or to opt for a pure C-band configuration.
description: 9 pages, 7 figures
A graph neural network approach to interval and box graph completion problems
Creators: name: Qian, Xinjie
Publisher: name: University of British Columbia
Year: 2024

description: Interval and box graph editing/completion problems are interesting in the field of graph theory, whose aim is to transform an arbitrary graph into an interval or box graph by adding or removing edges, with a minimum number of such modifications. There are many existing algorithms that make use of the combinatorial properties of graphs to solve these problems. In this thesis, we propose an alternative approach that uses Graph Neural Networks(GNN). We introduce a GNN model that takes graphs as input and generates interval/box graphs by adding or removing edges. We also design and employ an aggregation process with an attention mechanism that leverages the neighborhood of each vertex, which aligns with the properties of the problem. To evaluate the capability of our GNN model, we develop a random model for generating interval and box graphs with adjustable parameters, inspired by Scheinerman’s random interval model [Sch90]. We observe that it is challenging for our GNN model to handle sparse graphs in terms of minimizing edge modification. To enhance GNN’s performance in such scenarios, we implement a data filtering mechanism and incorparate a learnable distance parameter into the attention aggregation process. Overall, our GNN model demonstrates promising results in addressing interval and box graph completion problems.
Dark torsion as the cosmic speed-up
Creators: name: Bengochea, Gabriel
name: Ferraro, Rafael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the recently detected acceleration of the universe can be understood by considering a modification of the teleparallel equivalent of General Relativity (TEGR), with no need of dark energy. The solution also exhibits phases dominated by matter and radiation as expected in the standard cosmological evolution. We perform a joint analysis with measurements of the most recent type Ia supernovae (SNe Ia), Baryon Acoustic Oscillation (BAO) peak and estimates of the CMB shift parameter data to constraint the only new parameter this theory has.
description: 5 pages, 5 figures, replaced to match version to be published in Physical Review D
Zero momentum modes in discrete light-cone quantization
Creators: name: Chabysheva, S. S.
name: Hiller, J. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the constrained zero modes found in the application of discrete light-cone quantization (DLCQ) to the nonperturbative solution of quantum field theories. These modes are usually neglected for simplicity, but we show that their inclusion can be relatively straightforward, and, what is more, that they are useful for nonperturbative calculations of field-theoretic spectra. In particular, inclusion of zero modes improves the convergence of the numerical calculation and makes possible the direct calculation of vacuum expectation values, even when the zero modes are determined dynamically. We also comment on zero-mode contributions not included by DLCQ, namely zero-mode loops.
description: 10 pages, LaTeX/REVTeX, no figures; typos corrected, references added, discussion of zero-mode loops added
Additional file 1 of Effect of intubation in the lateral position under general anesthesia induction on the position of double-lumen tube placement in patients undergoing unilateral video-assisted thoracic surgery: study protocol for a prospective, single-center, parallel group, randomized, controlled trial
Creators: name: Zhang, Xi
name: Wang, Dong-Xu
name: Zhang, Qin
name: Shen, Qi-Bin
name: Tong, Fei
name: Hu, Yong-He
name: Zhang, Zhen-Duo
name: Liu, Fei-Fan
name: Tang, Ya-Wen
name: Chen, Juan-Li
name: Liu, He
name: Zhou, Feng
name: Hu, Si-Ping
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Preoperative, intraoperative and postoperative CRFs.
Einfluss des Dralls auf den Überschallnachlauf eines längsangeströmten zylindrischen Körpers
Creators: name: Weidner, Stephan
Publisher: name: KIT Scientific Publishing
Year: 2020
Subjects: Überschallnachlauf
Drall
Wirbelaufplatzen
Windkanalmessungen
Numerische Simulationen
supersonic wake flow
swirl
vortex breakdown
wind-tunnel measurements
numerical simulations

description: Die Arbeit untersucht den Einfluss des Dralls auf den Überschallnachlauf längsangeströmter zylindrischer Körper. Der Drall wurde mittels Leitflächen vor der Modellhinterkante erzeugt. Die experimentellen und numerischen Ergebnisse zeigen zwei in Abhängigkeit von der Drallrate aufeinanderfolgende Änderungen der Nachlaufstruktur. Die strömungsmechanischen Prozesse innerhalb der rotierenden Nachläufe sowie die Ursachen der resultierenden strukturellen Veränderungen werden detailliert analysiert.
X-ray emitting MHD accretion shocks in classical T Tauri stars. Case for moderate to high plasma-beta values
Creators: name: Orlando, S.
name: Sacco, G. G.
name: Argiroffi, C.
name: Reale, F.
name: Peres, G.
name: Maggio, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: AIMS. We investigate the stability and dynamics of accretion shocks in CTTSs, considering the case of beta >= 1 in the post-shock region. In these cases the 1D approximation is not valid and a multi-dimensional MHD approach is necessary. METHODS. We model an accretion stream propagating through the atmosphere of a CTTS and impacting onto its chromosphere, by performing 2D axisymmetric MHD simulations. The model takes into account the stellar magnetic field, the gravity, the radiative cooling, and the thermal conduction (including the effects of heat flux saturation). RESULTS. The dynamics and stability of the accretion shock strongly depends on the plasma beta. In the case of shocks with beta > 10, violent outflows of shock-heated material (and possibly MHD waves) are generated at the base of the accretion column and strongly perturb the surrounding stellar atmosphere and the accretion column itself (modifying, therefore, the dynamics of the shock). In shocks with beta ~ 1, the post-shock region is efficiently confined by the magnetic field. The shock oscillations induced by cooling instability are strongly influenced by beta: for beta > 10, the oscillations may be rapidly dumped by the magnetic field, approaching a quasi-stationary state, or may be chaotic with no obvious periodicity due to perturbation of the stream induced by the post-shock plasma itself; for beta ~ 1 the oscillations are quasi-periodic, although their amplitude is smaller and the frequency higher than those predicted by 1D models.
description: 12 pages, 10 Figures; accepted for publication on A&A. Version with full resolution images can be found at http://www.astropa.unipa.it/~orlando/PREPRINTS/sorlando_13565.pdf
Fixed-Parameter Algorithms in Analysis of Heuristics for Extracting Networks in Linear Programs
Creators: name: Gutin, G.
name: Karapetyan, D.
name: Razgon, I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We consider the problem of extracting a maximum-size reflected network in a linear program. This problem has been studied before and a state-of-the-art SGA heuristic with two variations have been proposed. In this paper we apply a new approach to evaluate the quality of SGA\@. In particular, we solve majority of the instances in the testbed to optimality using a new fixed-parameter algorithm, i.e., an algorithm whose runtime is polynomial in the input size but exponential in terms of an additional parameter associated with the given problem. This analysis allows us to conclude that the the existing SGA heuristic, in fact, produces solutions of a very high quality and often reaches the optimal objective values. However, SGA contain two components which leave some space for improvement: building of a spanning tree and searching for an independent set in a graph. In the hope of obtaining even better heuristic, we tried to replace both of these components with some equivalent algorithms. We tried to use a fixed-parameter algorithm instead of a greedy one for searching of an independent set. But even the exact solution of this subproblem improved the whole heuristic insignificantly. Hence, the crucial part of SGA is building of a spanning tree. We tried three different algorithms, and it appears that the Depth-First search is clearly superior to the other ones in building of the spanning tree for SGA. Thereby, by application of fixed-parameter algorithms, we managed to check that the existing SGA heuristic is of a high quality and selected the component which required an improvement. This allowed us to intensify the research in a proper direction which yielded a superior variation of SGA.
On the inelastic 2-soliton collision for gKdV equations with general nonlinearity
Creators: name: Muñoz, Claudio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q51, 35Q53, 37K10, 37K40

description: We study the problem of 2-soliton collision for the generalized Korteweg-de Vries equations, completing some recent works of Y. Martel and F. Merle. We classify the nonlinearities for which collisions are elastic or inelastic. Our main result states that in the case of small solitons, with one soliton smaller than the other one, the unique nonlinearities allowing a perfectly elastic collision are precisely the integrable cases, namely the quadratic (KdV), cubic (mKdV) and Gardner nonlinearities.
description: 54 pages, submitted; corrected a gap in a previous computation
Conductance asymmetry of a slot gate Si-MOSFET in a strong parallel magnetic field
Creators: name: Shlimak, I.
name: Golosov, D. I.
name: Butenko, A.
name: Friedland, K. -J.
name: Kravchenko, S. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report measurements on a Si-MOSFET sample with a slot in the upper gate, allowing for different electron densities n_{1,2} across the slot. The dynamic longitudinal resistance was measured by the standard lock-in technique, while maintaining a large DC current through the source-drain channel. We find that the conductance of the sample in a strong parallel magnetic field is asymmetric with respect to the DC current direction. This asymmetry increases with magnetic field. The results are interpreted in terms of electron spin accumulation or depletion near the slot.
description: 4 LaTeX pages, 2 figures. Annalen der Physik, in press
Rotational farming by the Karen People and its role in livelihood adaptive capacity and biocultural conservation : a case study of upland community forestry in Thailand
Creators: name: Nosten, Marie
Publisher: name: University of British Columbia
Year: 2024

description: The community forest (CF) discourse in Thailand addresses areas such as forest conservation, agriculture production, and cultural identity. Rotational farming, sometimes called swidden farming, is a traditional form of agroforestry practised by upland Indigenous and Ethnic Minority communities like the Karen People and enhances the adaptive capacity of farming communities. However, it is not legally recognized as a form of CF management within protected areas. This case study on the Karen village of Ban Klang in the province of Lampang showcases how rotational farming may simultaneously account for the three sectors. This research was designed using elements of participatory research, participants were purposefully sampled and interviewed using semi-structured interviews. Data was also gathered from participant observation and document analysis. The first topic addresses how rotational farming contributes to the forest-dependent livelihood of Ban Klang and how the villagers have adapted to external and internal pressures for change to maintain this way of life instead of transforming to conventional and often intensive mono-crop farming. The data is presented using a hybrid model that has elements of both the Sustainable Livelihoods Framework and the Social Ecological System model. The second topic addresses how rotational farming may be permitted within protected areas through the advocacy for a Special Cultural Zone (SCZ). The SCZ land designation has been proposed based on the goals of the August 10th 2010 Cabinet Resolution which calls for the revitalization of Karen customary way of life as it is widely recognized as a contributor for biocultural conservation. The SCZ concept addresses short historical socio-cultural and ecological issues for upland Karen farming communities, but does not have sufficient consideration for long-term factors such as climate change and inclusion of the various other Indigenous and Ethnic Minority communities in the country.
Additional file 2 of Effect of intubation in the lateral position under general anesthesia induction on the position of double-lumen tube placement in patients undergoing unilateral video-assisted thoracic surgery: study protocol for a prospective, single-center, parallel group, randomized, controlled trial
Creators: name: Zhang, Xi
name: Wang, Dong-Xu
name: Zhang, Qin
name: Shen, Qi-Bin
name: Tong, Fei
name: Hu, Yong-He
name: Zhang, Zhen-Duo
name: Liu, Fei-Fan
name: Tang, Ya-Wen
name: Chen, Juan-Li
name: Liu, He
name: Zhou, Feng
name: Hu, Si-Ping
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. QoR-15 score.
Optical identification of radio-loud active galactic nuclei in the ROSAT-Green-Bank sample with SDSS spectroscopy
Creators: name: Wang, Deliang
name: Wang, Jianguo
name: Dong, Xiaobo
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Results are presented of extended and refined optical identification of 181 radio/X-ray sources in the RASS-Green Bank (RGB) catalog which have been spectroscopically observed in the Sloan digital sky survey (SDSS) DR5. For 72 sources, the identifications for are presented for the first time. It is confirmed that the majority of strong radio/X-ray emitters are radio-loud active galactic nuclei (AGNs), particularly blazars. Taking advantage of the high spectral quality and resolution and our refined spectral modeling, we are able to disentangle narrow line radio galaxies (NLRGs), as vaguely termed in most previous identification work, into Seyfert II galaxies and LINERs, based on the standard emission line diagnostics. The NLRGs in the RGB sample, mostly belonging to `weak line radio galaxies', are found have optical spectra consistent predominantly with LINERs, and only a small fraction with Seyfert II galaxies. A small number of LINERs have radio power as high as $10^{23}-10^{26}$ \whz at 5 GHz, being among the strongest radio emitting LINERs known so far. Two sources are identified with radio-loud narrow line Seyfert 1 galaxies (NLS1s), a class of rare objects. The presence is also confirmed of flat-spectrum radio quasars with the radio--optical--X-ray effective spectral indices similar to those of High-energy peaked BL Lac (HBL), albeit it is yet a debate as to whether this is the case for their actual spectral energy distributions.
description: 32 pages, 13 figures, Accepted by RAA, reference update
Additional file 8 of Cell–cell communications shape tumor microenvironment and predict clinical outcomes in clear cell renal carcinoma
Creators: name: Chen, Liu-xun
name: Zeng, Shen-jie
name: Liu, Xv-dong
name: Tang, Hai-bin
name: Wang, Jia-wu
name: Jiang, Qing
Publisher: name: figshare
Year: 2023
Subjects: subject: Physical Sciences not elsewhere classified
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Additional file 8: Document S1. Figures S1–S3.