cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Simple Observation on Heisenberg-Like Uncertainty Principles
Creators: name: Tang, Yiyu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: A solution is given to a conjecture proposed by Y. Wigderson and A. Wigderson concerning a "Heisenberg-like" uncertainty principle. This is an old article already published in 2022.
Nernst Effect of stripe ordering La$_{1.8-x}$Eu$_{0.2}$Sr$_x$CuO$_4$
Creators: name: Hess, Christian
name: Ahmed, Emad M.
name: Ammerahl, Udo
name: Revcolevschi, Alexandre
name: Büchner, Bernd
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the transport properties of La$_{1.8-x}$Eu$_{0.2}$Sr$_x$CuO$_4$ ($x=0.04$, 0.08, 0.125, 0.15, 0.2) with a special focus on the Nernst effect in the normal state. Various anomalous features are present in the data. For $x=0.125$ and 0.15 a kink-like anomaly is present in the vicinity of the onset of charge stripe order in the LTT phase, suggestive of enhanced positive quasiparticle Nernst response in the stripe ordered phase. At higher temperature, all doping levels except $x=0.2$ exhibit a further kink anomaly in the LTO phase which cannot unambiguously be related to stripe order. Moreover, a direct comparison between the Nernst coefficients of stripe ordering La$_{1.8-x}$Eu$_{0.2}$Sr$_x$CuO$_4$ and superconducting La$_{2-x}$Sr$_x$CuO$_4$ at the doping levels $x=0.125$ and $x=0.15$ reveals only weak differences. Our findings make high demands on any scenario interpreting the Nernst response in hole-doped cuprates.
Reynolds number dependence of turbulence induced by the Richtmyer-Meshkov instability using direct numerical simulations
Creators: name: Groom, Michael
name: Thornber, Ben
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper investigates the Reynolds number dependence of a turbulent mixing layer evolving from the Richtmyer-Meshkov instability using a series of direct numerical simulations of a well-defined narrowband initial condition for a range of different Reynolds numbers. The growth rate exponent of the integral width and mixed mass is shown to marginally depend on the initial Reynolds number Re0, as does the minimum value of the molecular mixing fraction. The decay rates of turbulent kinetic energy and its dissipation rate are shown to decrease with increasing Re0, while the spatial distribution of these quantities is biased towards the spike side of the layer. The normalised dissipation rate and scalar dissipation rate are calculated and are observed to be approaching a high Reynolds number limit. By fitting an appropriate functional form, the asymptotic value of these two quantities is estimated as 1.54 and 0.66. Finally, an evaluation of the mixing transition criterion for unsteady flows is performed, showing that even for the highest Re0 case the turbulence in the flow is not yet fully developed. This is despite the observation of a narrow inertial range in the turbulent kinetic energy spectra, with a scaling close to -3/2.
Partition function zeros of zeta-urns
Creators: name: Bialas, P.
name: Burda, Z.
name: Johnston, D. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discuss the distribution of partition function zeros for the grand-canonical ensemble of the zeta-urn model, where tuning a single parameter can give a first or any higher order condensation transition. We compute the locus of zeros for finite-size systems and test scaling relations describing the accumulation of zeros near the critical point against theoretical predictions for both the first and higher order transition regimes.
description: 11 pages, 6 figures
Quantum Monte Carlo calculations of spectroscopic overlaps in $A \leq 7$ nuclei
Creators: name: Brida, I.
name: Pieper, Steven C.
name: Wiringa, R. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present Green's function Monte Carlo calculations of spectroscopic overlaps for $A \leq 7$ nuclei. The realistic Argonne v18 two-nucleon and Illinois-7 three-nucleon interactions are used to generate the nuclear states. The overlap matrix elements are extrapolated from mixed estimates between variational Monte Carlo and Green's function Monte Carlo wave functions. The overlap functions are used to obtain spectroscopic factors and asymptotic normalization coefficients, and they can serve as an input for low-energy reaction calculations.
MASTERING THE FORMS OF MEANINGFUL REFLEXION AT PRIMARY SCHOOL AGE
Creators: name: Zak, A.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: cognitive meaningful reflection
cognitive formal reflection
forms of meaningful reflection
search tasks
non-educational content
age dynamics
junior schoolchildren.

description: The article describes the main characteristics of formal and meaningful cognitive reflection, reveals the features of a special experimental situation for the study and diagnosis of types of reflection, presents four kinds of search tasks of non-educational content, describes three forms of meaningful reflection. For the first time, the author describes the development of three forms of meaningful reflection during the period of education of children in primary school.
Exploring microbial community structure and resilience through visualization and analysis of microbial co-occurrence networks
Creators: name: Perez, Sarah Isa Esther
Publisher: name: University of British Columbia
Year: 2015

description: Cultivation independent microbial ecology research relies on high throughput sequencing technologies and analytical methods to resolve the infinite diversity of microbial life on Earth. Microorganisms live in communities driven by genetic and metabolic processes as well as symbiotic relationships. Interconnected communities of microorganisms provide essential functions in natural and human engineered ecosystems. Modelling the community as an inter-connected system can give insight into the community's functional characteristics related to the biogeochemical processes it performs. Network science resolves associations between elements of structure to notions of function in a system and has been successfully applied to the study of microbial communities and other complex biological systems. Microbial co-occurrence networks are inferred from community composition data to resolve structural patterns related to ecological properties such as community resilience to disturbance and keystone species. However, the interpretation of global and local network properties from an ecological standpoint remains difficult due to the complexity of these systems creating a need for quantitative analytical methods and visualization techniques for co-occurrence networks. This thesis tackles the visualization and analytical challenges of modelling microbial community structure from a network science approach. First, Hive Panel Explorer, an interactive visualization tool, is developed to permit data driven exploration of topological and data association patterns in complex systems. The effectiveness of Hive Panel Explorer is validated by resolving known and novel patterns in a model biological network, the C. elegans connectome. Second, network structural robustness analysis methods are applied to study microbial communities from timber harvested forest soils from a North American longterm soil productivity study. Analyzing these geographically dispersed soils reveals biogeographic patterns of diversity and enables the discovery of conserved organizing principles shaping microbial community structure. The capacity of robustness analysis to identify key microbial community members as well as model shifts in community structure due to environmental change is demonstrated. Finally, this work provides insight into the relationship between microbes and their ecosystem, and characterizing this relationship can help us understand the organization of microbial communities, survey microbial diversity and harness its potential.
Inclusive AR/VR: Accessibility Barriers for Immersive Technologies
Creators: name: Creed, Chris
name: Al-Kalbani, Maadh
name: Theil, Arthur
name: Sarcar, Sayan
name: Williams, Ian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Augmented and virtual reality (AR/VR) hold significant potential to transform how we communicate, collaborate, and interact with others. However, there has been a lack of work to date investigating accessibility barriers in relation to immersive technologies for people with disabilities. To address current gaps in knowledge, we led two multidisciplinary Sandpits with key stakeholders (including academic researchers, AR/VR industry specialists, people with lived experience of disability, assistive technologists, and representatives from national charities and special needs colleges) to collaboratively explore and identify existing challenges with AR and VR experiences. We present key themes that emerged from Sandpit activities and map out the interaction barriers identified across a spectrum of impairments (including physical, cognitive, visual, and auditory disabilities). We conclude with recommendations for future work addressing the challenges highlighted to support the development of more inclusive AR and VR experiences.
description: Universal Access in the Information Society (2023)
Evidence of precursor superconductivity as high as 180 K from infrared spectroscopy
Creators: name: Dubroka, A.
name: Roessle, M.
name: Kim, K. W.
name: Malik, V. K.
name: Munzar, D.
name: Basov, D. N.
name: Schafgans, A.
name: Moon, S. J.
name: Lin, C. T.
name: Haug, D.
name: Hinkov, V.
name: Keimer, B.
name: Wolf, Th.
name: Storey, J. G.
name: Tallon, J. L.
name: Bernhard, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that a multilayer analysis of the infrared c-axis response of RBa2Cu3O7-d (R=Y, Gd, Eu) provides important new information about the anomalous normal state properties of underdoped cuprate high temperature superconductors. Besides competing correlations which give rise to a pseudogap that depletes the low-energy electronic states below T*>>Tc, it enables us to identify the onset of a precursor superconducting state below Tons>Tc. We map out the doping phase diagram of Tons which reaches a maximum of ~180 K at strong underdoping and present magnetic field dependent data which confirm our conclusions.
description: 5 pages, 3 figures
MHD Dynamos and Turbulence
Creators: name: Tobias, Steven M.
name: Cattaneo, Fausto
name: Boldyrev, Stanislav
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A review of MHD dynamos and turbulence.
description: A book chapter to be published in 'The Nature of Turbulence,' P. Davidson, Y. Kaneda, and K.R. Sreenivasan, eds
THE MODUS OF EFFICIENCY ASSESSMENT OF THE ENTERPRISE BUSINESS PROCESSES
Creators: name: Bashuk, I.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: business process
SMART approach
business process efficiency indicators
process modeling
business process evaluation
process-oriented management.

description: The author's view on the groups of indicators that characterize the efficiency of business processes is considered in the article. It is noted that the performance indicators of business processes are subject to certain requirements that provide a holistic, from a certain point of view, the reflection of the business process. The SMARTapproach is used to reflect the requirements for business process performance indicators, taking into account their quantitative or qualitative vector of direction. A six-criteria approach to evaluating the effectiveness of business processes has been formed. The main tools and methods of business process evaluation are highlighted. Taking into account the developed requirements for business process indicators and in combination with the methods of their evaluation, we developed our own model for evaluating the effectiveness of the business process.
A Physically-Motivated Photometric Calibration of M Dwarf Metallicity
Creators: name: Schlaufman, Kevin C.
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The location of M dwarfs in the V-K_s--M_Ks color-magnitude diagram (CMD) has been shown to correlate with metallicity. We demonstrate that previous empirical photometric calibrations of M dwarf metallicity exploiting this correlation systematically underestimate or overestimate metallicity at the extremes of their range. We improve upon previous calibrations in three ways. We use both a volume-limited and kinematically-matched sample of F and G dwarfs from the Geneva-Copehnagen Survey (GCS) to infer the mean metallicity of M dwarfs in the Solar Neighborhood, we use theoretical models of M dwarf interiors and atmospheres to determine the effect of metallicity on M dwarfs in the V-K_s--M_Ks CMD, and we base our final calibration purely on high-resolution spectroscopy of FGK primaries with M dwarf companions. As a result, we explain an order of magnitude more of the variance in the calibration sample than previous photometric calibrations. We non-parametrically quantify the significance of the observation that M dwarfs that host exoplanets are preferentially in a region of the V-K_s--M_Ks plane populated by metal-rich M dwarfs. We find that the probability p that planet-hosting M dwarfs are distributed across the V-K_s--M_Ks CMD in the same way as field M dwarfs is p = 0.06 +/- 0.008. Interestingly, the subsample of M dwarfs that host Neptune and sub-Neptune mass planets may also be preferentially located in the region of the V-K_s--M_Ks plane populated by high-metallicity M dwarfs. The probability of this occurrence by chance is p = 0.40 +/- 0.02, and this observation hints that low-mass planets may be more likely to be found around metal-rich M dwarfs. An increased rate of low-mass planet occurrence around metal-rich M dwarfs would be a natural consequence of the core-accretion model of planet formation. (abridged)
description: 10 pages, 4 figures, and 1 table in A&A format; accepted for publication in A&A
Aboriginal and Torres Strait Islander Health Workers and Practitioners and their role in cervical screening and self-collection in Australia: An Indigenist research approach.
Creators: name: Zammit, Claire Maria
name: Morseu-Diop, Aminata
name: Leha, Desiree
name: Briscoe, Karl
name: Dennis, Jodie
name: Butler, Tamara
name: Nightingale, Claire
name: BROTHERTON, JULIA
name: Whop, Lisa
Publisher: name: The University of Melbourne
Year: 2024
Subjects: classificationCode: 420311
subject: Health systems
classificationCode: 420312
subject: Implementation science and evaluation
classificationCode: 420319
subject: Primary health care
classificationCode: 420605
subject: Preventative health care
classificationCode: 420602
subject: Health equity
classificationCode: 450409
subject: Aboriginal and Torres Strait Islander health services

description: Objectives/Purpose: The clinical practice guidelines for cervical screening suggest that Aboriginal and Torres Strait Islander health workers and practitioners can support self-collection cervical screening delivery. To our knowledge, there has been no research or systematic consultation with the Aboriginal and Torres Strait Islander health workforce regarding their involvement in implementing self-collection. We aimed to explore and describe how Aboriginal and Torres Strait Islander health professionals want to be involved in the implementation of cervical screening and/or self-collection in Australian National Cervical Screening Program.Methods/Project Description: Grounded in an Indigenist research approach and in partnership with the National Association of Aboriginal and Torres Strait Islander Health Workers and Practitioners the peak community-controlled health workforce organisation, this research utilises mixed-methods and implementation science theory. This study comprises: 1) a cross-sectional survey outlining current and desired roles of the workforce, 2) focus group discussions with members of the workforce to define and explore how the model of care (Aboriginal and Torres Strait Islander health worker/practitioner-led self-collection) would work in practice, 3) interviews with key policy stakeholders to understand policy levers to facilitate the implementation of this model of care.Results/Outcomes: To date, 104 Aboriginal and Torres Strait Islander health workers (37%) or practitioners (54.3%) have completed the cross-sectional survey with most respondents being from NSW (32%) and QLD (38%). Recruitment of health professionals for focus-group discussions has commenced and is expected to be completed by the end of 2023. We will present preliminary data from these phases. This research aligns with key strategic directions of the National Workforce Plan for the Aboriginal and Torres Strait Islander Health Workforce and will create an evidence base for health worker/practitioner-led models of care in cancer screening.
Apparate: Rethinking Early Exits to Tame Latency-Throughput Tensions in ML Serving
Creators: name: Dai, Yinwei
name: Pan, Rui
name: Iyer, Anand
name: Li, Kai
name: Netravali, Ravi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Machine learning (ML) inference platforms are tasked with balancing two competing goals: ensuring high throughput given many requests, and delivering low-latency responses to support interactive applications. Unfortunately, existing platform knobs (e.g., batch sizes) fail to ease this fundamental tension, and instead only enable users to harshly trade off one property for the other. This paper explores an alternate strategy to taming throughput-latency tradeoffs by changing the granularity at which inference is performed. We present Apparate, a system that automatically applies and manages early exits (EEs) in ML models, whereby certain inputs can exit with results at intermediate layers. To cope with the time-varying overhead and accuracy challenges that EEs bring, Apparate repurposes exits to provide continual feedback that powers several novel runtime monitoring and adaptation strategies. Apparate lowers median response latencies by 40.5--91.5% and 10.0--24.2% for diverse CV and NLP classification workloads, and median time-per-token latencies by 22.6--77.9% for generative scenarios, without affecting throughputs or violating tight accuracy constraints.
description: The first two authors contributed equally and are listed in alphabetical order. The paper has been accepted by SOSP '24
Additional file 1 of Fabrication of multifunctional metal–organic frameworks nanoparticles via layer-by-layer self-assembly to efficiently discover PSD95-nNOS uncouplers for stroke treatment
Creators: name: Ding, Yingying
name: Jin, Yang
name: Peng, Tao
name: Gao, Yankun
name: Zang, Yang
name: He, Hongliang
name: Li, Fei
name: Zhang, Yu
name: Zhang, Hongjuan
name: Chen, Lina
Publisher: name: figshare
Year: 2022
Subjects: Biochemistry
Space Science
Molecular Biology
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified

description: Additional file 1: Preparation of the contrasting materials; optimization of His-nNOS immobilization conditions; characterization; western blot analysis; the pre-screening experiments on the compounds. Fig. S1. Western blotting analysis (M: marker, lane 1: PSD95-nNOS, lane 2: GFP-PSD95, lane 3: His-nNOS, lane 4: PSD95-nNOS/Fe-MOF, the lanes on the left of the marker were detected with nNOS-specific antibodies and the lanes on the right of the marker were detected with PSD95-specific antibodies). Fig. S2. The quenching effect of nineteen compounds on the fluorescence intensity of GFP-PSD95. Table S1. Comparison of the particle size for the materials to immobilize nNOS.
Effect of annealing temperature on morphology, structure and photocatalytic behavior of nanotubed H2Ti2O4(OH)2
Creators: name: Zhang, Min
name: Jin, Zhensheng
name: Zhang, Jingwei
name: Guo, Xinyong
name: Yang, Jianjun
name: Li, Wei
name: Wang, Xiaodong
name: Zhang, Zhijun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanotubed titanic acid (H2Ti2O4(OH)2) was prepared from nanotubed sodium titanate (Na2Ti2O4(OH)2) by an ion exchange reaction in a pH=1 HCl solution. The effect of annealing temperature on the morphology, structure and photocatalytic behavior of nanotubed H2Ti2O4(OH)2 was studied by means of TEM, XRD, DTG, DSC, BET and ESR. The results showed that nanotubed H2Ti2O4(OH)2 is thermally unstable. Its dehydration consists of two steps. In the first-step dehydration, single-electron-trapped oxygen vacancies (SETOVs) were generated. Accompanying the second-step dehydration, the transition of crystal form from orthorhombic system to anatase took place, at the same time the nanotubes broke. At T>300 °C, when the SETOV concentration greatly increased, the interaction between SETOV happened. (VOo)x formed could play the role of recombination center of photogenerated e--h+ and make the photocatalytic behavior of TiO2 (anatase, obtained from 500 °C-treated nanotubed H2Ti2O4(OH)2) to become bad.
description: 8 pages, 11 figures
Trigonometric Parallaxes of Massive Star Forming Regions: VIII. G12.89+0.49, G15.03-0.68 (M17) and G27.36-0.16
Creators: name: Xu, Y.
name: Moscadelli, L.
name: Reid, M. J.
name: Menten, K. M.
name: Zhang, B.
name: Zheng, X. W.
name: Brunthaler, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report trigonometric parallaxes for three massive star forming regions, corresponding to distances of $2.34^{+0.13}_{-0.11}$ kpc for G12.89+0.49 (also known as IRAS 18089-1732),$1.98^{+0.14}_{-0.12}$ kpc for G15.03-0.68 (in the M17 region), and $8.0^{+4.0}_{-2.0}$ kpc for G27.36-0.16. Both G12.89+0.49 and G15.03-0.68 are located in the Carina-Sagittarius spiral arm.
Zigzag dice lattice ribbons: Distinct edge morphologies and structure-spectrum correspondences
Creators: name: Hao, Lei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ribbons of two-dimensional lattices have properties depending sensitively on the morphology of the two edges. For regular ribbons with two parallel straight edges, the atomic chains terminating the two edges may have more than one choices for a general edge orientation. We enumerate the possible choices for zigzag dice lattice ribbons, which are regular ribbons of the dice lattice with edges parallel to a zigzag direction, and explore the relation between the edge morphologies and their electronic spectra. A formula is introduced to count the number of distinct edge termination morphologies for the regular ribbons, which gives 18 distinct edge termination morphologies for the zigzag dice lattice ribbons. For the pure dice model, because the equivalence of the two rim sublattices, the numerical spectra of the zigzag ribbons show qualitative degeneracies among the different edge termination morphologies. For the symmetrically biased dice model, we see a one-to-one correspondence between the 18 edge termination morphologies and their electronic spectra, when both the zero-energy flat bands and the dispersive or nonzero-energy in-gap states are considered. We analytically study several interesting features in the electronic spectra, including the number and wave functions of the zero-energy flat bands, and the analytical spectrum of novel in-gap states. The in-gap states of the zigzag dice lattice ribbons both exhibit interesting similarities and show salient differences when compared to the spectra of the zigzag ribbons of the honeycomb lattice.
description: 20 pages, 10 figures
EVLA Observations of Galactic Supernova Remnants: Wide-field Continuum and Spectral-index Imaging
Creators: name: Bhatnagar, S.
name: Rau, U.
name: Green, D. A.
name: Rupen, M. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The radio continuum emission from the Galaxy has a rich mix of thermal and non-thermal emission. This very richness makes their interpretation challenging since the low radio opacity means that a radio image represents the sum of all emission regions along the line-of-sight. These challenges make the existing narrow-band radio surveys of the Galactic plane difficult to interpret: e.g. a small region of emission might be a supernova remnant (SNR) or an HII region, or a complex combination of both. Instantaneous wide bandwidth radio observations in combination with the capability for high resolution spectral index mapping, can be directly used to disentangle these effects. Here we demonstrate simultaneous continuum and spectral index imaging capability at the full continuum sensitivity and resolution using newly developed wide-band wide-field imaging algorithms. Observations were done in the L- and C-Band with a total bandwidth of 1 and 2 GHz respectively. We present preliminary results in the form of a full-field continuum image covering the wide-band sensitivity pattern of the EVLA centered on a large but poorly studied SNR (G55.7+3.4) and relatively narrower field continuum and spectral index maps of three fields containing SNR and diffused thermal emission. We demonstrate that spatially resolved spectral index maps differentiates regions with emission of different physical origin (spectral index variation across composite SNRs and separation of thermal and non-thermal emission), superimposed along the line of sight. The wide-field image centered on the SNR G55.7+3.4 also demonstrates the excellent wide-field wide-band imaging capability of the EVLA.
description: 6 pages; 4 figures; accepted for publication in ApJL, to appear in the ApJL EVLA special issue
Evidence of Possible Spin-Orbit Misalignment Along the Line of Sight in Transiting Exoplanet Systems
Creators: name: Schlaufman, Kevin C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Of the 26 transiting exoplanet systems with measurements of the Rossiter-McLaughlin (RM) effect, eight have now been found to be significantly spin-orbit misaligned in the plane of the sky. Unfortunately, the RM effect only measures the angle between the orbit of a transiting exoplanet and the spin of its host star projected in the plane of sky, leaving unconstrained the compliment misalignment angle between the orbit of the planet and the spin of its host star along the line of sight. I use a simple model of stellar rotation benchmarked with observational data to statistically identify ten exoplanet systems from a sample of 75 for which there is likely a significant degree of misalignment along the line of sight between the orbit of the planet and the spin of its host star. I find that HAT-P-7, HAT-P-14, HAT-P-16, HD 17156, Kepler-5, Kepler-7, TrES-4, WASP-1, WASP-12, and WASP-14 are likely spin-orbit misaligned along the line of sight. All ten systems have host stellar masses M_star in the range 1.2 M_sun <= M_star <= 1.5 M_sun, and the probability of this occurrence by chance is less than one in ten thousand. In addition, the planets in the candidate misaligned systems are preferentially massive and eccentric. The coupled distribution of misalignment from the RM effect and from this anaylsis suggests that transiting exoplanets are more likely to be spin-orbit aligned than expected given predictions for a transiting planet population produced entirely by planet-planet scattering or Kozai cycles and tidal friction. For that reason, there are likely two populations of close-in exoplanet systems: a population of aligned systems and a population of apparently misaligned systems in which the processes that lead to misalignment or to the survival of misaligned systems operate more efficiently in systems with massive stars and planets. (abridged)
description: 16 pages, 5 figures, and 2 tables in emulateapj format; submitted to ApJ in original form 24 December 2009, resubmitted in response to referee report 1 June 2010
The effect of radiative gravitational modes on the dynamics of a cylindrical shell of counter rotating particles
Creators: name: Gleiser, Reinaldo J.
name: Ramirez, Marcos A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider some aspects of the relativistic dynamics of a cylindrical shell of counter rotating particles. In some sense these are the simplest systems with a physically acceptable matter content that display in a well defined sense an interaction with the radiative modes of the gravitational field. These systems have been analyzed previously, but in most cases resorting to approximations, or considering a particular form for the initial value data. Here we show that there exists a family of solutions where the space time inside the shell is flat and the equation of motion of the shell decouples completely from the gravitational modes. The motion of the shell is governed by an equation of the same form as that of a particle in a time independent one dimensional potential. We find that under appropriate initial conditions one can have collapsing, bounded periodic, and unbounded motions. We analyze and solve also the linearized equations that describe the dynamics of the system near a stable static solutions, keeping a regular interior. The surprising result here is that the motion of the shell is completely determined by the configuration of the radiative modes of the gravitational field. In particular, there are oscillating solutions for any chosen period, in contrast with the "approximately Newtonian plus small radiative corrections" motion expectation. We comment on the physical meaning of these results and provide some explicit examples. We also discuss the relation of our results to the initial value problem for the linearized dynamics of the shell.
Examining the Impact of Uncontrolled Variables on Physiological Signals in User Studies for Information Processing Activities
Creators: name: Ji, Kaixin
name: Spina, Damiano
name: Hettiachchi, Danula
name: Salim, Flora Dilys
name: Scholer, Falk
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Physiological signals can potentially be applied as objective measures to understand the behavior and engagement of users interacting with information access systems. However, the signals are highly sensitive, and many controls are required in laboratory user studies. To investigate the extent to which controlled or uncontrolled (i.e., confounding) variables such as task sequence or duration influence the observed signals, we conducted a pilot study where each participant completed four types of information-processing activities (READ, LISTEN, SPEAK, and WRITE). Meanwhile, we collected data on blood volume pulse, electrodermal activity, and pupil responses. We then used machine learning approaches as a mechanism to examine the influence of controlled and uncontrolled variables that commonly arise in user studies. Task duration was found to have a substantial effect on the model performance, suggesting it represents individual differences rather than giving insight into the target variables. This work contributes to our understanding of such variables in using physiological signals in information retrieval user studies.
description: Accepted to the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR '23)
MONDAY OR FRIDAY? UNDERSTANDING TIME THROUGH SPATIAL EXPERIENCE
Creators: name: Rommel, A.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: metaphors
metaphoric structuring
linguistics
time
space
dementia
Alzheimer’s.

description: The question of how people are able to think and talk about abstract concepts, such as time and love, has been a subject of interest among linguists for decades. Some views maintain the stance that the abstract domain can be understood through the concrete, or physical, domain (Lakoff & Johnson, 1980). For instance, studies conducted by Boroditsky and Ramscar (2002) demonstrated that English participants understood the abstract concept of time through the experience-based domain of space. Moreover, they understood that these two domains are so tightly correlated, that whilst experiencing basic spatial activities, people subconsciously changed the way they thought about time. This experiment was later replicated with Russian speakers (Chugunova, 2009), which was possible as there is ambiguity surrounding the word “forward” in both the English and Russian languages. However, the study replicated with Russian speakers produced differing results (Chugunova, 2009). Thus, the present research replicated Boroditsky's and Ramscar’s experiment with the Russian speakers once again. This replication shed light on whether the hypothesis that time is understood through spatial experience can be generalized to languages other than English. Most importantly, the research elaborates on the practical implications of the hypothesis, particularly for individuals living with different types of dementia such as Alzheimer's disease who often struggle with orientation in the time continuum.
A study of the propagation of magnetoacoustic waves in small-scale magnetic fields using solar photospheric and chromospheric Dopplergrams: HMI/SDO and MAST observations
Creators: name: Kumar, Hirdesh
name: Kumar, Brajesh
name: Rajaguru, S. P.
name: Mathew, Shibu K.
name: Bayanna, Ankala Raja
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, we present a study of the propagation of low-frequency magneto-acoustic waves into the solar chromosphere within small-scale inclined magnetic fields over a quiet-magnetic network region utilizing near-simultaneous photospheric and chromospheric Dopplergrams obtained from the HMI instrument onboard SDO spacecraft and the Multi-Application Solar Telescope (MAST) operational at the Udaipur Solar Observatory, respectively. Acoustic waves are stochastically excited inside the convection zone of the Sun and intermittently interact with the background magnetic fields resulting into episodic signals. In order to detect these episodic signals, we apply the wavelet transform technique to the photospheric and chromospheric velocity oscillations in magnetic network regions. The wavelet power spectrum over photospheric and chromospheric velocity signals show a one-to-one correspondence between the presence of power in the 2.5-4 mHz band. Further, we notice that power in the 2.5-4 mHz band is not consistently present in the chromospheric wavelet power spectrum despite its presence in the photospheric wavelet power spectrum. This indicates that leakage of photospheric oscillations (2.5-4 mHz band) into the higher atmosphere is not a continuous process. The average phase and coherence spectra estimated from these photospheric and chromospheric velocity oscillations illustrate the propagation of photospheric oscillations (2.5-4 mHz) into the solar chromosphere along the inclined magnetic fields. Additionally, chromospheric power maps estimated from the MAST Dopplergrams also show the presence of high-frequency acoustic halos around relatively high magnetic concentrations, depicting the refraction of high-frequency fast mode waves around vA ~ vs layer in the solar atmosphere.
description: 16 pages, 7 figures, Accepted for Publication in Journal of Atmospheric and Solar-Terrestrial Physics (Special Issue of STP-15)
Probing the interaction between U24 from HHV-6A and Smurf2 WW domains
Creators: name: Zhang, Rui
Publisher: name: University of British Columbia
Year: 2015

description: This thesis describes the study of the interaction of the U24 membrane protein, encoded by Human Herpesvirus type-6A (HHV-6A), with WW domains from Smad ubiquitylation regulatory factor 2 (Smurf2) via its PPxY motif. U24 from HHV-6A is of interest because it acts to block endosomal recycling, as mediated by its PPxY motif interacting with WW domain-containing proteins. We have used a multidisciplinary approach to study the interactions between the Smurf2 WW domains and the PPxY motif-containing region of U24. The GST pull-down experiment demonstrated a difference in affinity between WW domains for the full-length U24 protein, prompting binding studies on interactions between the PPxY motif-containing region of U24 and isolated WW3 domain or WW2 and WW3 domains in tandem (WW23). In Chapter 2, studies were focused on interactions between the third WW domain (WW3) of Smurf2, and the 15-mer U24 peptide containing the PPxY motif. NMR studies demonstrated that the PPxY motif of U24 peptide bound to Smurf2 WW3 domain in a similar way as the interaction between Smurf2 WW3 domain and its cognate ligand Smad7. The dissociation constant was determined to be 123 ± 4 μM at 5°C, reflecting weak binding affinity between WW3 domain and U24 peptide, possibly due to the lack of additional interactions between WW3 domain and the region of U24 peptide beyond the PPxY motif. Circular Dichroism (CD) experiments suggested that isolated WW3 domain was not as stable as other WW domains and binding to U24 peptide enhanced its stability slightly. In Chapter 3, interactions between tandem Smurf2 WW23 and U24 peptide were studied. NMR studies demonstrated that the interaction between Smurf2 WW23 and U24 peptide mainly relied on the U24 peptide binding to its WW3 domain and that the WW2 domain played only a minor role in the interaction. CD experiments were also carried out to detect the stability of Smurf2 WW23 with and without U24 peptide.
Underlay Cognitive Radio with Full or Partial Channel Quality Information
Creators: name: Yi, Na
name: Ma, Yi
name: Tafazolli, Rahim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Underlay cognitive radios (UCRs) allow a secondary user to enter a primary user's spectrum through intelligent utilization of multiuser channel quality information (CQI) and sharing of codebook. The aim of this work is to study two-user Gaussian UCR systems by assuming the full or partial knowledge of multiuser CQI. Key contribution of this work is motivated by the fact that the full knowledge of multiuser CQI is not always available. We first establish a location-aided UCR model where the secondary user is assumed to have partial CQI about the secondary-transmitter to primary-receiver link as well as full CQI about the other links. Then, new UCR approaches are proposed and carefully analyzed in terms of the secondary user's achievable rate, denoted by $C_2$, the capacity penalty to primary user, denoted by $ΔC_1$, and capacity outage probability. Numerical examples are provided to visually compare the performance of UCRs with full knowledge of multiuser CQI and the proposed approaches with partial knowledge of multiuser CQI.
description: 29 Pages, 8 figures
Hamiltonian Determination with Restricted Access in Transverse Field Ising Chain
Creators: name: Fasihi, Mohammad Ali
name: Tanaka, Shu
name: Nakahara, Mikio
name: Kondo, Yasushi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a method to evaluate parameters in the Hamiltonian of the Ising chain under site-dependent transverse fields, with a proviso that we can control and measure one of the edge spins only. We evaluate the eigenvalues of the Hamiltonian and the time-evoultion operator exactly for a 3-spin chain, from which we obtain the expectation values of $σ_x$ of the first spin. The parameters are found from the peak positions of the Fourier transform of the expectation value. There are four assumptions in our method, which are mild enough to be satisfied in many physical systems.
description: 15pages, 4 figures
Glueball masses with exponentially improved statistical precision
Creators: name: Della Morte, Michele
name: Giusti, Leonardo
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We briefly review the computational strategy we have recently introduced for computing glueball masses and matrix elements, which achieves an exponential reduction of statistical errors compared to standard techniques. The global symmetries of the theory play a crucial role in the approach. We show how our previous work on parity can be generalized to other symmetries. In particular we discuss how to extract the mass of the 0++, 2++ and 0-+ lightest glueballs avoiding the exponential degradation of the signal to noise ratio. We present new numerical results and update the published ones.
description: 7 pages, 2 figures. Contribution at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy
Evidence of defect-induced ferromagnetism in ZnFe$_{2}$O$_{4}$ thin films
Creators: name: Torres, C. E. Rodríguez
name: Golmar, F.
name: Ziese, M.
name: Esquinazi, P.
name: Heluani, S. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray absorption near-edge and grazing incidence X-ray fluorescence spectroscopy are employed to investigate the electronic structure of ZnFe$_{2}$O$_{4}$ thin films. The spectroscopy techniques are used to determine the non-equilibrium cation site occupancy as a function of depth and oxygen pressure during deposition and its effects on the magnetic properties. It is found that low deposition pressures below 10$^{-3}$ mbar cause iron superoccupation of tetrahedral sites without Zn$^{2+}$ inversion, resulting in an ordered magnetic phase with high room temperature magnetic moment.
description: Accepted for publication in Phys. Rev. B
Oracle R12 EBusiness Suite Role Based Access Control and Roles Lifecycle Management
Creators: name: Rahim, Sajid
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: K.6.5

description: Oracle E-Business Suite R12 is a widely used ERP solution that provides integrated view of information across multiple functions and sources. It allows for simplified business process tools for Shared service model e.g. Centralized Operation where multiple operating units can be supported. Security considerations are vital for such operations in large enterprises. R12 introduced Role Based Access Control security based on ANSI RBAC standard. R12 RBAC implementation is challenged with lack of Roles Lifecycle Management (RLM) process which also contributes to challenges such as Segregation of duty (SOD), and controlling access to PII for multi-country operation for common functional areas. The paper will propose a possible Roles Lifecycle Management process.
description: 8 pages, 14 figures
PECULIARITIES OF LANGUAGE LEARNING STRATEGIES
Creators: name: Panchenko, O.
name: Perlova, V.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: strategy
learning strategy
modern education
personality-orientedlearning strategy.

description: The paper deals with the analysis of the present educational strategies in modern education. The aim of the research is the analysis of modern language learning strategies to find out the most relevant of them. The objectives of the paper are to study the classifications of modern language learning strategies and to characterize the strategy of student-centered learning as one of the most important one. The classifications of learning strategies, as well as the description of the features of learning strategies are represented in the article, in particular, the strategy of personality-oriented learning. The perspectives of future researchers lie in the possibility to investigate new strategies of language learning, which will appear in response to the demands of the modern educational system.
Magnetoelastics of a spin liquid: X-ray diffraction studies of Tb2Ti2O7 in pulsed magnetic fields
Creators: name: Ruff, J. P. C.
name: Islam, Z.
name: Clancy, J. P.
name: Ross, K. A.
name: Nojiri, H.
name: Matsuda, Y. H.
name: Dabkowska, H. A.
name: Dabkowski, A. D.
name: Gaulin, B. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report high resolution single crystal x-ray diffraction measurements of the frustrated pyrochlore magnet Tb2Ti2O7, collected using a novel low temperature pulsed magnet system. This instrument allows characterization of structural degrees of freedom to temperatures as low as 4.4 K, and in applied magnetic fields as large as 30 Tesla. We show that Tb2Ti2O7 manifests intriguing structural effects under the application of magnetic fields, including strongly anisotropic giant magnetostriction, a restoration of perfect pyrochlore symmetry in low magnetic fields, and ultimately a structural phase transition in high magnetic fields. It is suggested that the magnetoelastic coupling thus revealed plays a significant role in the spin liquid physics of Tb2Ti2O7 at low temperatures.
description: 4 pages, 4 figures, submitted for publication