cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A note on spaces of asymptotic dimension one
Creators: name: Fujiwara, Koji
name: Whyte, Kevin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Metric Geometry (math.MG)
subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 51F99

description: Let $X$ be a geodesic metric space with $H_1(X)$ uniformly generated. If $X$ has asymptotic dimension one then $X$ is quasi-isometric to an unbounded tree. As a corollary, we show that the asymptotic dimension of the curve graph of a compact, oriented surface with genus $g \ge 2$ and one boundary component is at least two.
description: add Example 0.3, 7 pages
Referenceless Rate-Distortion Modeling with Learning from Bitstream and Pixel Features
Creators: name: Sun, Yangfan
name: Li, Li
name: Li, Zhu
name: Liu, Shan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Generally, adaptive bitrates for variable Internet bandwidths can be obtained through multi-pass coding. Referenceless prediction-based methods show practical benefits compared with multi-pass coding to avoid excessive computational resource consumption, especially in low-latency circumstances. However, most of them fail to predict precisely due to the complex inner structure of modern codecs. Therefore, to improve the fidelity of prediction, we propose a referenceless prediction-based R-QP modeling (PmR-QP) method to estimate bitrate by leveraging a deep learning algorithm with only one-pass coding. It refines the global rate-control paradigm in modern codecs on flexibility and applicability with few adjustments as possible. By exploring the potentials of bitstream and pixel features from the prerequisite of one-pass coding, it can reach the expectation of bitrate estimation in terms of precision. To be more specific, we first describe the R-QP relationship curve as a robust quadratic R-QP modeling function derived from the Cauchy-based distribution. Second, we simplify the modeling function by fastening one operational point of the relationship curve received from the coding process. Third, we learn the model parameters from bitstream and pixel features, named them hybrid referenceless features, comprising texture information, hierarchical coding structure, and selected modes in intra-prediction. Extensive experiments demonstrate the proposed method significantly decreases the proportion of samples' bitrate estimation error within 10% by 24.60% on average over the state-of-the-art.
Trademark filings and patent application count time series are structurally near-identical and cointegrated: Implications for studies in innovation
Creators: name: Daizadeh, Iraj
Publisher: name: arXiv
Year: 2020
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: Through time series analysis, this paper empirically explores, confirms and extends the trademark/patent inter-relationship as proposed in the normative intellectual-property (IP)-oriented Innovation Agenda view of the science and technology (S&T) firm. Beyond simple correlation, it is shown that trademark-filing (Trademarks) and patent-application counts (Patents) have similar (if not, identical) structural attributes (including similar distribution characteristics and seasonal variation, cross-wavelet synchronicity/coherency (short-term cross-periodicity) and structural breaks) and are cointegrated (integration order of 1) over a period of approximately 40 years (given the monthly observations). The existence of cointegration strongly suggests a "long-run" equilibrium between the two indices; that is, there is (are) exogenous force(s) restraining the two indices from diverging from one another. Structural breakpoints in the chrono-dynamics of the indices supports the existence of potentially similar exogeneous forces(s), as the break dates are simultaneous/near-simultaneous (Trademarks: 1987, 1993, 1999, 2005, 2011; Patents: 1988, 1994, 2000, and 2011). A discussion of potential triggers (affecting both time series) causing these breaks, and the concept of equilibrium in the context of these proxy measures are presented. The cointegration order and structural co-movements resemble other macro-economic variables, stoking the opportunity of using econometrics approaches to further analyze these data. As a corollary, this work further supports the inclusion of trademark analysis in innovation studies. Lastly, the data and corresponding analysis tools (R program) are presented as Supplementary Materials for reproducibility and convenience to conduct future work for interested readers.
Exploring the Galactic Warp Through Asymmetries in the Kinematics of the Galactic Disk
Creators: name: Cheng, Xinlun
name: Anguiano, Borja
name: Majewski, Steven R.
name: Hayes, Christian
name: Arras, Phil
name: Chiappini, Cristina
name: Hasselquist, Sten
name: Queiroz, Anna Bárbara de Andrade
name: Nitschelm, Christian
name: Garcıa-Hernández, Domingo Anıbal
name: Lane, Richard R.
name: Roman-Lopes, Alexandre
name: Frinchaboy, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Previous analyses of large databases of Milky Way stars have revealed the stellar disk of our Galaxy to be warped and that this imparts a strong signature on the kinematics of stars beyond the solar neighborhood. However, due to the limitation of accurate distance estimates, many attempts to explore the extent of these Galactic features have generally been restricted to a volume near the Sun. By combining Gaia DR2 astrometric solution, StarHorse distance and stellar abundances from the APOGEE survey, we present the most detailed and radially expansive study yet of the vertical and radial motions of stars in the Galactic disk. We map stellar velocity with respect to their Galactocentric radius, angular momentum, and azimuthal angle and assess their relation to the warp. A decrease in vertical velocity is discovered at Galactocentric radius $R=13\ \text{kpc}$ and angular momentum $L_z=2800\ \text{kpc}\ \text{km}\ \text{s}^{-1}$. Smaller ripples in vertical and radial velocity are also discovered superposed on the main trend. We also discovered that trends in the vertical velocity with azimuthal angle are not symmetric about the peak, suggesting the warp to be lopsided. To explain the global trend in vertical velocity, we built a simple analytical model of the Galactic warp. Our best fit yields a starting radius of $8.87^{+0.08}_{-0.09}\ \text{kpc}$ and precession rate of $13.57^{+0.20}_{-0.18}\ \text{km}\ \text{s}^{-1}\ \text{kpc}^{-1}$. These parameters remain consistent across stellar age groups, a result that supports the notion that the warp is the result of an external, gravitationally induced phenomenon.
description: Accepted for publication in ApJ
EUTelescope: A modular reconstruction framework for beam telescope data
Creators: name: Bisanz, Tobias
name: Jansen, Hendrik
name: Arling, Jan-Hendrik
name: Bulgheroni, Antonio
name: Dreyling-Eschweiler, Jan
name: Eichhorn, Thomas
name: Gregor, Ingrid-Maria
name: Hamnett, Phlillip
name: Kleinwort, Claus
name: Morton, Alexander
name: Perrey, Hanno
name: Queitsch-Maitland, Michaela
name: Rossi, Edoardo
name: Spannagel, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: EUTelescope is a modular, comprehensive software framework for the reconstruction of particle trajectories recorded with beam telescopes. Its modularity allows for a flexible usage of processors each fulfilling separate tasks of the reconstruction chain such as clustering, alignment and track fitting. %The reconstruction chain is directed via XML steering files. The framework facilitates the usage of any position sensitive device for both the beam telescope sensors as well as the device under test and supports a wide range of geometric arrangements of the sensors. In this work, the functionality of the EUTelescope framework as released in v2.2 and its underlying dependencies are discussed. Various use cases with emphasis on the General Broken Lines advanced track fitting methods give examples of the work flow and capabilities of the framework.
Bryometopus triquetus Foissner 1993
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Bryometopida
Bryometopidae
Bryometopus
Bryometopus triquetus

description: Bryometopus triquetus Foissner, 1993
Distribution. BRAZIL: (Foissner et al. 2003).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 21, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Presque $\mathbf{C}_p$-représentations et $(ϕ,Γ)$-modules
Creators: name: Berger, Laurent
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11F80; 11F85; 11S15; 11S20; 11S25; 14F30

description: We associate two almost $C_p$-representations to a $(ϕ,Γ)$-module, and we compute their dimensions and heights. As a corollary, we get a full faithfulness result for $B_e$-representations.
Unveiling the Cygnus OB2 stellar population with Chandra
Creators: name: Colombo, J. F. Albacete
name: Flaccomio, E.
name: Micela, G.
name: Damiani, F.
name: Sciortino, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The aim of this work is to identify the so far unknown low mass stellar population of the ~2Myr old Cygnus OB2 region, and to investigate the X-ray and near-IR stellar properties of its members. We analyzed a 97.7 ksec Chandra ACIS-I observation pointed at the core of the Cygnus OB2 region. X-ray variability ans spectral analysis of sources was characterized through the KS-test and XSPEC thermal models, respectively. We detected 1003 X-ray sources. Of these, 775 have near-IR counterparts associated with Cygnus OB2 members. We estimate a typical absorption toward Cygnus OB2 of Av~7.0 mag. Although the region is young, very few stars (~4.4 %) show disk-induced excesses in the near-IR. X-ray variability is detected in ~13 % of the sources. Flares account for at least 60 % of the variability. O- that early B-type stars are not significantly variable. Typical X-ray spectral parameters are log(Nh)~22.25 and kT~1.35 keV. Variable and flaring sources have harder spectra with median kT=3.3 and 3.8 keV, respectively. OB stars are typically softer (kT~0.75 keV). X-ray luminosities range between 1E+30 and 1E+31 erg/s for intermediate- and low-mass stars, and 2.5x10^30 and between 6.3E+33 erg/s for OB stars. The Cygnus OB2 region has a very rich population of low-mass X-ray emitting stars. Circumstellar disks seem to be very scarce.
description: Accepted for publication in A&A. 20 pages, 17 figures
Luminous K-band Selected Quasars from UKIDSS
Creators: name: Maddox, Natasha
name: Hewett, Paul C.
name: Warren, S. J.
name: Croom, S. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The largest K-band flux-limited sample of luminous quasars to date has been constructed from the UKIDSS Large Area Survey Early Data Release, covering an effective area of 12.8 deg^2. Exploiting the K-band excess of all quasars with respect to foreground stars, including quasars experiencing dust reddening and objects with non-standard SEDs, a list of targets suitable for spectroscopic follow-up observations with the AAOmega multi-object spectrograph is constructed, resulting in more than 200 confirmed AGN. KX-selection successfully identifies as quasar candidates objects that are excluded from the SDSS quasar selection algorithm due to their colours being consistent with the stellar locus in optical colour space (with the space density of the excluded objects agreeing well with results from existing completeness analyses). Nearly half of the KX-selected quasars with K<17.0 at z<3 are too faint in the i-band to have been targeted by the SDSS quasar selection algorithm, revealing a large population of quasars with red i-K colours. The majority of these objects have significant amounts of host galaxy light contributing to their K-band magnitudes, consistent with previous predictions. The remaining objects are morphologically stellar and have colours consistent with quasars experiencing SMC-type reddening with 0.10
description: 22 pages, 18 figures, accepted for publication in MNRAS. Resolution of Figure 2 has been reduced for astro-ph submission. The complete Table 5 can be found at http://www.aip.de/People/nmaddox/KX/catalogue.txt
Validation of a model for an ionic electro-active polymer in the static case
Creators: name: Tixier, Mireille
name: Pouget, Joël
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: IPMCs consist of a Nafion(R) ionic polymer film coated on both sides with a thin layer of metallic electrodes. The polymer completely dissociates when it is saturated with water, releasing small cations while anions remain bound to the polymer chains. When this strip is subject to an orthogonal electric field, the cations migrate towards the negative electrode, carrying water away by osmosis. This leads to the bending of the strip. We have previously published a modelling of this system based on the thermodynamics of irreversible processes. In this paper, we use this model to simulate numerically the bending of a strip. Since the amplitude of the deflection is large, we use a beam model in large displacements. In addition, the material permittivity may increase with ion concentration. We therefore test three permittivity models. We plot the profiles of the cations concentration, pressure, electric potential and induction, and we study the influence of the strip geometry on the tip displacement and on the blocking force. The results we obtain are in good agreement with the experimental data published in the literature. The variation of these quantities with the imposed electric potential allow us to discriminate between the three models.
Fast and Low GPU Memory Abdominal Organ Segmentation in CT
Creators: name: Ma, Jun
name: Gu, Song
name: Zhang, Yao
name: Xingle An
name: Zhu, Cheng
name: Congcong Wang
name: Ge, Cheng
name: Liwen Zou
name: Qiongjie Zhu
name: Guoqiang Dong
name: He, Jian
name: Xiaoping Yang
Publisher: name: Zenodo
Year: 2021
Subjects: Abdominal organ segmentation
low gpu memory
fast
efficient

description: Abdominal organ segmentation plays an important role in clinical practice, and to some extent, it seems to be a solved problem because the state-of-the-art methods have achieved inter-observer performance in several benchmark datasets. However, most of the existing abdominal datasets only contain single-center, single-phase, single-vendor, or single-disease cases, and it is unclear whether the excellent performance can be generalized on more diverse datasets. Moreover, many SOTA methods use model ensembles to boost performance, but these solutions usually have a large model size and cost extensive computational resources, which are impractical to be deployed in clinical practice. To address these limitations, we will organize a Fast and Low GPU Memory Abdominal Organ Segmentation challenge. We present a large and diverse abdominal CT organ dataset with 500 CT scans from 11 countries, including multi-center, multi-phase, multi-vendor, and multi-disease cases. Participants are required to develop segmentation methods that can segment the liver, kidney, spleen, and pancreas simultaneously, where both accuracy and efficiency will be evaluated. The challenge has two main features: (1) the dataset is large and diverse, and the submitted methods will be evaluated on the cases from unseen centers; (2) we not only focus on segmentation accuracy but also segmentation efficiency, which are in concordance with real clinical practice and requirements.
The emergence of the Cabibbo angle in non-degenerate coupled systems of fermions
Creators: name: Duret, Quentin
name: Machet, Bruno
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Investigating, in direct continuation of our previous paper hep-ph/0606303 the implications of the non-unitarity of mixing matrices for non-degenerate coupled systems that we demonstrated there, we examine more accurately the vicinity of Cabibbo-like mixing in quantum field theory. We show that it is possible to preserve one of its main features, namely that, in the space of mass eigenstates, the two requirements -- of universality for weak diagonal currents and -- of the absence of their non-diagonal counterparts, although not fulfilled separately any more, can however reduce to a single condition for a unique mixing angle theta\_c. This leads to tan (2 theta\_c)=+/- 1/2, or cos theta\_c \approx 0.9732, only 7/10000 away from experimental results. No mass ratio appears in the argumentation.
description: This is a different version of hep-ph/0607193, with a simplified argumentation, a clearer connection with hep-ph/0606303. The solution for the Cabibbo angle is also expressed in terms of the golden number. To appear in Phys. Lett. B
Event Coreference Resolution via a Multi-loss Neural Network without Using Argument Information
Creators: name: Zuo, Xinyu
name: Chen, Yubo
name: Liu, Kang
name: Zhao, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Event coreference resolution(ECR) is an important task in Natural Language Processing (NLP) and nearly all the existing approaches to this task rely on event argument information. However, these methods tend to suffer from error propagation from the stage of event argument extraction. Besides, not every event mention contains all arguments of an event, and argument information may confuse the model that events have arguments to detect event coreference in real text. Furthermore, the context information of an event is useful to infer the coreference between events. Thus, in order to reduce the errors propagated from event argument extraction and use context information effectively, we propose a multi-loss neural network model that does not need any argument information to do the within-document event coreference resolution task and achieve a significant performance than the state-of-the-art methods.
description: Published on SCIENCE CHINA Information Sciences
Transmission zeros and ultrasensitive detection in complex systems
Creators: name: Kang, Yuhao
name: Genack, Azriel Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Understanding vanishing transmission in Fano resonances in quantum systems and metamaterials, and ultralow transmission in disordered media is key to elucidating optical interactions. Using analytic theory and numerical simulations, we discover the topological structure and motion under deformation of transmission zeros in the complex energy plane. We demonstrate the zeros can be controlled to create ultranarrow Lorentzian lines in spectra of transmission time and diverging rates of frequency change of transmission zeros as they converge. This suggests a new approach to ultrasensitive detection.
Poincare duality complexes in dimension four
Creators: name: Baues, Hans Joachim
name: Bleile, Beatrice
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57P10

description: We describe an algebraic structure on chain complexes yielding algebraic models which classify homotopy types of Poincare duality complexes of dimension 4. Generalizing Turaev's fundamental triples of Poincare duality complexes of dimension 3, we introduce fundamental triples for Poincare duality complexes of dimension n > 2 and show that two Poincare duality complexes are orientedly homotopy equivalent if and only if their fundamental triples are isomorphic. As applications we establish a conjecture of Turaev and obtain a criterion for the existence of degree 1 maps between n-dimensional manifolds.
description: 27 pages, made changes concerning examples in the literature after recieving helpful comments
Théorème de Donsker et formes de Dirichlet
Creators: name: Bouleau, Nicolas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 31C25 60H07 65G99 60J65

description: We use the language of errors to handle local Dirichlet forms with square field operator (cf [2]). Let us consider, under the hypotheses of Donsker theorem, a random walk converging weakly to a Brownian motion. If in addition the random walk is supposed to be erroneous, the convergence occurs in the sense of Dirichlet forms and induces the Ornstein-Uhlenbeck structure on the Wiener space. This quite natural result uses an extension of Donsker theorem to functions with quadratic growth. As an application we prove an invariance principle for the gradient of the maximum of the Brownian path computed by Nualart and Vives.
Transcription of a story about early encounters with non-Indians
Creators: name: Parker, Verdena
name: Begay, Kayla
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-211211-06: Transcription of a story about early encounters between Indian, white, and Chinese people in Hoopa Valley (file VP-091010-04), from 4:35 to 6:32.
Fully self-consistent GW calculations for atoms and molecules
Creators: name: Stan, Adrian
name: Dahlen, Nils Erik
name: van Leeuwen, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We solve the Dyson equation for atoms and diatomic molecules within the GW approximation, in order to elucidate the effects of self-consistency on the total energies and ionization potentials. We find GW to produce accurate energy differences although the self-consistent total energies differ significantly from the exact values. Total energies obtained from the Luttinger-Ward functional E_LW[G] with simple, approximate Green functions as input, are shown to be in excellent agreement with the self-consistent results. This demonstrates that the Luttinger-Ward functional is a reliable method for testing the merits of different self-energy approximations without the need to solve the Dyson equation self-consistently. Self-consistent GW ionization potentials are calculated from the Extended Koopmans Theorem, and shown to be in good agreement with the experimental results. We also find the self-consistent ionization potentials to be often better than the non-self-consistent G0W0 values. We conclude that GW calculations should be done self-consistently in order to obtain physically meaningful and unambiguous energy differences.
description: 7 pages, 2 figures
Random walk on a discrete torus and random interlacements
Creators: name: Windisch, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G50, 60K35, 82C41

description: We investigate the relation between the local picture left by the trajectory of a simple random walk on the torus (Z/NZ)^d, d >= 3, until u N^d time steps, u > 0, and the model of random interlacements recently introduced by Sznitman. In particular, we show that for large N, the joint distribution of the local pictures in the neighborhoods of finitely many distant points left by the walk up to time u N^d converges to independent copies of the random interlacement at level u.
description: 12 pages, accepted for publication in Electronic Communications in Probability
Transcription of the Questionnaire on Information Structure
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-211211-05: Transcription of responses to the Questionnaire on Information Structure (file VP-151011-05), up to 11:18.
Effects of viscoelasticity on shear-thickening in dilute suspensions in a viscoelastic fluid
Creators: name: Matsuoka, Yuki
name: Nakayama, Yasuya
name: Kajiwara, Toshihisa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate previously unclarified effects of fluid elasticity on shear-thickening in dilute suspensions in an Oldroyd-B viscoelastic fluid using a novel direct numerical simulation based on the smoothed profile method. Fluid elasticity is determined by the Weissenberg number Wi and by viscosity ratio $1-β=η_p/(η_s+η_p)$ which measures the coupling between the polymer stress and flow: $η_p$ and $η_s$ are the polymer and solvent viscosity, respectively.As $1-β$ increases, while the stresslet does not change significantly compared to that in the $β\to 1$ limit, the growth rate of the normalized polymer stress with Wi was suppressed.Analysis of flow and conformation dynamics around a particle for different $β$ reveals that at large $1-β$, polymer stress modulates flow, leading to suppression of polymer stretch.This effect of $β$ on polymer stress development indicates complex coupling between fluid elasticity and flow, and is essential to understand the rheology and hydrodynamic interactions in suspensions in viscoelastic media.
The Revival and Reconstruction of Women Warriors' Popular Representations in Thailand: Backgrounds, Motives, and Strategies of the Post-absolutist Regime
Creators: name: Natanaree Posrithong
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: woman warrior
post-absolutist regime
state's agents

description: วารสารประวัติศาสตร์ ธรรมศาสตร์, 7, 2, 119-141
The effects of stakeholders' expectations in their evaluation of corporate social responsibility news
Creators: name: Tan, Lina
Publisher: name: The Australian National University
Year: 2013
Subjects: subject: Social responsibility of business Evaluation
subject: Expectation (Psychology)
subject: Corporations Public relations.

description: This thesis investigates the effects of air passengers' and travel intermediaries' expectations on their beliefs, attitude and behavioural intentions. I develop a conceptual model articulating the nature and antecedents of three types of expectations: would, could and should. I propose that would and should expectations influence updated beliefs through attitude towards news for two different stakeholder groups and that would expectations mediate the relationship between could expectations and attitude towards news for two different stakeholder groups. Empirically, I measure prior dispositions and intentions, then how beliefs, attitude and behavioural intentions change towards a focal airline in response to a piece of corporate social responsibility (CSR) news about it. 781 airline passenger stakeholders (B2C) and 356 travel intermediaries (B2B) were surveyed after an initial pre-test of the survey instrument and a pilot study. Structural equation models (SEM) and multi-group structural equation models (multi-group SEM) largely provided support for the hypothesised model.
Bias in Conversational Search: The Double-Edged Sword of the Personalized Knowledge Graph
Creators: name: Gerritse, Emma J.
name: Hasibi, Faegheh
name: de Vries, Arjen P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3

description: Conversational AI systems are being used in personal devices, providing users with highly personalized content. Personalized knowledge graphs (PKGs) are one of the recently proposed methods to store users' information in a structured form and tailor answers to their liking. Personalization, however, is prone to amplifying bias and contributing to the echo-chamber phenomenon. In this paper, we discuss different types of biases in conversational search systems, with the emphasis on the biases that are related to PKGs. We review existing definitions of bias in the literature: people bias, algorithm bias, and a combination of the two, and further propose different strategies for tackling these biases for conversational search systems. Finally, we discuss methods for measuring bias and evaluating user satisfaction.
Evaluation of cell wall preparations for proteomics: a new procedure for purifying cell walls from Arabidopsis hypocotyls
Creators: name: Feiz, Leila
name: Irshad, Muhammad
name: Pont-Lezica, Rafael F
name: Canut, Hervé
name: Jamet, Elisabeth
Publisher: name: arXiv
Year: 2006
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: The ultimate goal of proteomic analysis of a cell compartment should be the exhaustive identification of resident proteins; excluding proteins from other cell compartments. Plant cell walls possess specific difficulties. Several reported procedures to isolate cell walls for proteomic analyses led to the isolation of a high proportion (more than 50%) of predicted intracellular proteins. The rationales of several published procedures to isolate cell walls for proteomics were analyzed, with regard to the bioinformatic-predicted subcellular localization of the identified proteins. A new procedure was developed to prepare cell walls from etiolated hypocotyls of Arabidopsis thaliana. After salt extraction, a high proportion of proteins predicted to be secreted was released (73%), belonging to the same functional classes as proteins identified using previously described protocols. The new cell wall preparation described in this paper gives the lowest proportion of proteins predicted to be intracellular when compared to available protocols. The application of its principles should lead to a more realistic view of the cell wall proteome, at least for the weakly bound CWP extractable by salts. In addition, it offers a clean cell wall preparation for subsequent extraction of strongly bound CWP.
Afghanistan National Saffron Development Programme (ANSDP) A critical analysis
Creators: name: Nasratullah Kakar
Publisher: name: Zenodo
Year: 2020
Subjects: Afghanistan, Saffron, National, Development Programme

description: Afghanistan is an agricultural country and over the past decades of war, the only industry which has to stay alive in Afghanistan has been the agriculture industry. The soil, climate and the beautiful mountains have made the land a treasure for most of the valuable crops, one of which is Saffron. Saffron is the world’s most expensive and exotic spice among aromatic and medicinal plants. It has been ranked to give the best harvest in Afghanistan. A lot of other countries produce saffron as well including Iran, Spain, India etc. However the quality of saffron differs from each one of them.
Microdiaphanosoma arcuatum Wenzel 1953
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Bryometopida
Kreyellidae
Microdiaphanosoma
Microdiaphanosoma arcuatum

description: Microdiaphanosoma arcuatum (Grandori & Grandori, 1934) Wenzel, 1953
Distribution. ECUADOR: (Foissner et al. 2003).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 21, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Factorization and NLO QCD correction in e^+ e^- \to J/ψ(ψ(2S))+ χ_{c0} at B Factories}
Creators: name: Zhang, Yu-Jie
name: Ma, Yan-Qing
name: Chao, Kuang-Ta
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In nonrelativistic QCD (NRQCD), we study $e^+ e^- \to J/ψ(ψ(2S)) +χ_{c0}$ at $B$ factories, where the P-wave state $χ_{c0}$ is associated with an S-wave state $J/ψ$ or $ψ(2S)$. In contrast to the failure of factorization in most cases involving P-wave states, e.g. in B decays, we find that factorization holds in this process at next to leading order (NLO) in $α_s$ and leading order (LO) in $v$, where the associated S-wave state plays a crucial rule in canceling the infrared (IR) divergences. We also give some general analyses for factorization in various double charmonium production. The NLO corrections in $e^+ e^- \to J/ψ(ψ(2S)) +χ_{c0}$ at $\sqrt{s}=10.6$ GeV are found to substantially enhance the cross sections by a factor of about 2.8; hence crucially reduce the large discrepancy between theory and experiment. With $m_c=1.5{\rm GeV}$ and $μ=2m_c$, the NLO cross sections are estimated to be $17.9(11.3)$ fb for $e^+ e^- \to J/ψ(ψ(2S))+ χ_{c0}$, which reach the lower bounds of experiment.
description: Version published in PRD, implications from eq.(5) on factorization are emphasized, references are added
ROOSTER: a machine-learning analysis tool for Kepler stellar rotation periods
Creators: name: Breton, Sylvain N.
name: Santos, Angela R. G.
name: Bugnet, Lisa
name: Mathur, Savita
name: García, Rafael A.
name: Pallé, Pere L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In order to understand stellar evolution, it is crucial to efficiently determine stellar surface rotation periods. An efficient tool to automatically determine reliable rotation periods is needed when dealing with large samples of stellar photometric datasets. The objective of this work is to develop such a tool. Random forest learning abilities are exploited to automate the extraction of rotation periods in Kepler light curves. Rotation periods and complementary parameters are obtained from three different methods: a wavelet analysis, the autocorrelation function of the light curve, and the composite spectrum. We train three different classifiers: one to detect if rotational modulations are present in the light curve, one to flag close binary or classical pulsators candidates that can bias our rotation period determination, and finally one classifier to provide the final rotation period. We test our machine learning pipeline on 23,431 stars of the Kepler K and M dwarf reference rotation catalog of Santos et al. (2019) for which 60% of the stars have been visually inspected. For the sample of 21,707 stars where all the input parameters are provided to the algorithm, 94.2% of them are correctly classified (as rotating or not). Among the stars that have a rotation period in the reference catalog, the machine learning provides a period that agrees within 10% of the reference value for 95.3% of the stars. Moreover, the yield of correct rotation periods is raised to 99.5% after visually inspecting 25.2% of the stars. Over the two main analysis steps, rotation classification and period selection, the pipeline yields a global agreement with the reference values of 92.1% and 96.9% before and after visual inspection. Random forest classifiers are efficient tools to determine reliable rotation periods in large samples of stars. [abridged]
description: 14 pages, 8 figures. Accepted in A&A
Renormalization of gauge fields: A Hopf algebra approach
Creators: name: van Suijlekom, Walter D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the Connes-Kreimer Hopf algebra of renormalization in the case of gauge theories. We show that the Ward identities and the Slavnov-Taylor identities (in the abelian and non-abelian case respectively) are compatible with the Hopf algebra structure, in that they generate a Hopf ideal. Consequently, the quotient Hopf algebra is well-defined and has those identities built in. This provides a purely combinatorial and rigorous proof of compatibility of the Slavnov-Taylor identities with renormalization.
description: 24 pages; uses feynmf
Sharing Heartbeats: Motivations of Citizen Scientists in Times of Crises
Creators: name: Diethei, Daniel
name: Niess, Jasmin
name: Stellmacher, Carolin
name: Stefanidi, Evropi
name: Schöning, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: With the rise of COVID-19 cases globally, many countries released digital tools to mitigate the effects of the pandemic. In Germany the Robert Koch Institute (RKI) published the Corona-Data-Donation-App, a virtual citizen science (VCS) project, to establish an early warning system for the prediction of potential COVID-19 hotspots using data from wearable devices. While work on motivation for VCS projects in HCI often presents egoistic motives as prevailing, there is little research on such motives in crises situations. In this paper, we explore the socio-psychological processes and motivations to share personal data during a pandemic. Our findings indicate that collective motives dominated among app reviews (n=464) and in in-depth interviews (n=10). We contribute implications for future VCS tools in times of crises that highlight the importance of communication, transparency and responsibility.
A Method to Construct Asymptotic Solutions Invariant under the Renormalization Group
Creators: name: Iwasa, Masatomo
name: Nozaki, Kazuhiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A renormalization group method with the Lie symmetry is presented for the singular perturbation problems. Asymptotic solutions are obtained as group-invariant solutions under approximate Lie group admitted by perturbed differential equations.
description: 9 pages, 1 figure
Post-Workshop Report for Plug-N-Harvest Modular Façade Retrofit Workshop on Sustainable Places 2019
Creators: name: Du, Hu
name: Streblow, Rita
name: Montalbá
name: Sendra
Publisher: name: RWTH Aachen University
Year: 2019
Subjects: subject: 600

description: Sustainable Places 2019, SP2019, Cagliari, Italy, 5 Jun 2019 - 7 Jun 2019; Basel$nMDPI AG (2019). doi:10.3390/proceedings2019020014
description: Published by Basel$nMDPI AG
Seismic inference of differential rotation in Procyon A
Creators: name: Bonanno, A.
name: Kueker, M.
name: Paterno', L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The differential rotation of the F5V-IV star Procyon A is computed for a class of models which are consistent with recent astrometric and asteroseismic data. The rotation pattern is determined by solving the Reynolds equation for motion, including the convective energy transport, where the latter is anisotropic owing to the Coriolis force action which produces a horizontal temperature gradient between the poles and the equator. All the models show a decrease of the rotation rate with increasing radius and solar-type isorotation surfaces with the equator rotating faster than the poles, the horizontal rotational shear being much smaller for models with a less extended convective envelope. The meridional flow circulation can be either clockwise or counter-clockwise, and in some cases a double latitudinal cell appears. The rotational splittings are calculated for low degree $p$-modes with $l=1, m=1$ and $l=2, m=1,2$, and it is shown that, for modes with $m=1$, the stronger is the horizontal differential rotation shear the weaker the effect on the average rotational splitting expected, whilst the opposite happens for the mode with $m=2$. On the basis of the present study, a resolution of $10 \rm nHz$ in individual oscillation frequencies seems to be necessary to test the different dynamical behaviour of the proposed models, that appears barely achievable even in the forthcoming space missions. However, the average over several observed splittings could produce the required accuracy.
description: 9 pages, 7 figures, A&A to appear
New $\mathcal{N}=(0,4)$ AdS$_3$ near-horizons in Type IIB
Creators: name: Faedo, Federico
name: Lozano, Yolanda
name: Petri, Nicolò
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct new families of $\mathcal{N}=(0,4)$ $\mathrm{AdS}_3\times S^2 \times \tilde S^2 \times S^1$ backgrounds fibred over a 2d Riemann surface in Type IIB string theory. These solutions are obtained by extracting the near-horizon limit of D3-brane box configurations, consisting on D3-D5-NS5 branes ending on D5'-NS5' background branes. We relate our families of solutions to previous $\mathrm{AdS}_3\times S^2 \times \text{CY}_2$ and $\mathrm{AdS}_3\times S^3 \times S^2$ solutions to Type IIA recently constructed in the literature. We construct explicit 2d quiver CFTs associated to the D3-brane box configurations, and check that the central charges match the holographic result. We extend our solutions to include D7-branes, and show that a subclass of these solutions can be interpreted in terms of D3-D5-NS5 defect branes embedded in a 5d fixed point theory. This is explicitly realised by linking our solutions to a 6d domain wall that asymptotes locally the $\mathrm{AdS}_6\times S^2 \times Σ_2$ solution T-dual to the Brandhuber-Oz vacuum.
description: 40 pages, 6 figures. v2: references added, connection with D3 brane boxes emphasised
The Giant Dipole Resonance as a quantitative constraint on the symmetry energy
Creators: name: Trippa, Luca
name: Colo', Gianluca
name: Vigezzi, Enrico
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The possible constraints on the poorly determined symmetry part of the effective nuclear Hamiltonians or effective energy functionals, i.e., the so-called symmetry energy S(rho), are very much under debate. In the present work, we show that the value of the symmetry energy associated with Skyrme functionals, at densities rho around 0.1 fm^{-3}, is strongly correlated with the value of the centroid of the Giant Dipole Resonance (GDR) in spherical nuclei. Consequently, the experimental value of the GDR in, e.g., 208Pb can be used as a constraint on the symmetry energy, leading to 23.3 MeV < S(rho=0.1 fm^{-3}) < 24.9 MeV.
description: 5 pages, 2 figures, submitted
Quantification of Uncertainties in Biomedical Image Quantification 2021
Creators: name: Bjoern Menze
name: Joskowicz, Leo
name: Bakas, Spyridon
name: Andras Jakab
name: Konukoglu, Ender
name: Becker, Anton
name: Simpson, Amber
name: Do, Richard
Publisher: name: Zenodo
Year: 2021
Subjects: Segmentation
uncertainty quantification
observer variability
probabilities

description: A preliminary study on inter-observer variability of manual contour delineation of structures was carried out by L. Joskowicz et al. in 2019 and published in the journal 'European Radiology'. Its objective was to quantify the interobserver variability of manual delineation of lesions and organ contours in CT images to establish a reference standard for volumetric measurements for clinical decision making and for the evaluation of automatic segmentation algorithms. It was observed that the variability in manual delineations for different structures and observers is large and spans a wide range across a variety of structures and pathologies. Two and even three
 observers may not be sufficient to establish the full range of potential variability of the outlines of the structures of interest. This variability, that is a property of the biological problem, the imaging modality, and the expert annotators, is – as of now - not sufficiently considered in the design of computerized algorithms for medical image quantification. So far, uncertainties in predicted image segmentation are derived from general considerations of the statistical model, from resampling training data sets in ensemble approaches, or from systematic modifications of the predictive algorithm as in ‘drop-out’ procedures of deep learning procedures. At the same time, the definition of when the outline of an image structure to be quantified is ‘uncertain’ is a task- and data-dependent property of the quantification that can – and maybe has to – be directly inferred from human expert annotations. So far, there are no data sets available for evaluating the accuracy of probabilistic model predictions against such expert generated truth and there is no consensus on what procedures for uncertainty quantification return realistic estimates, and what procedures do not. The purpose of the challenge is to benchmark algorithms returning uncertainty estimates (probability scores, variability regions, etc) of structures in medical imaging segmentation tasks. Specifically, the algorithmic output will be compared against uncertainties that human annotators attribute to the local delineation of various image structures of diagnostic relevance, such as lesions or anatomical structures. Structures in several CT and MR image data sets have repeatedly been annotated by a group of experts to quantify the variability of boundary delineations. Tasks include the segmentation of lesions, such as brain tumors, pancreas tumors, or prostate tumors, as well as anatomical structures, such as brains, kidneys, prostates, or pancreas. It will continue the successful QUIBIQ 2020 challenge
The stellar content of the XMM-Newton Bright Serendipitous Survey
Creators: name: Lopez-Santiago, J.
name: Micela, G.
name: Sciortino, S.
name: Favata, F.
name: Caccianiga, A.
name: Della Ceca, R.
name: Severgnini, P.
name: Braito, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: The comparison of observed counts in a given sky direction with predictions by Galactic models yields constraints to the spatial distribution and the stellar birthrate of young stellar populations. In this work we present the results of the analysis of the stellar content of the XMM-Newton Bright Serendipitous Survey (XBSS). This unbiased survey includes a total of 58 stellar sources selected in the 0.5 -- 4.5 keV energy band, having a limiting sensitivity of $10^{-2}$ cnt s$^{-1}$ and covering an area of 28.10 sq. deg. Aims: Our main goal is to understand the recent star formation history of the Galaxy in the vicinity of the Sun. Methods: We compare the observations with the predictions obtained with XCOUNT, a model of the stellar X-ray content of the Galaxy. The model predicts the number and properties of the stars to be observed in terms of magnitude, colour, population and $f_\mathrm{x}/f_\mathrm{v}$ ratio distributions of the coronal sources detected with a given instrument and sensitivity in a specific sky direction. Results: As in other shallow surveys, we observe an excess of stars not predicted by our Galaxy model. Comparing the colours of the identified infrared counterparts with the model predictions, we observe that this excess is produced by yellow (G+K) stars. The study of the X-ray spectrum of each source reveals a main population of stars with coronal temperature stratification typical of intermediate-age stars. As no assumptions have been made for the selection of the sample, our results must be representative of the entire Solar Neighbourhood. Some stars show excess circumstellar absorption indicative of youth.
description: Accepted for publication in Astronomy and Astrophysics: 02/10/2006