cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coming Home: Thai-Dutch Couples’ Spatial Trajectories at the Intersection of Mobility Capital, Gender, and Ageing
Creators: name: Brown, Panitee
Publisher: name: Advances in Southeast Asian Studies
Year: 2022

description: This paper applies the notions of mobility, mobility capital, gender, and ageing to analyze marriage migration and the trajectories of geographical and social mobility of Thai-Dutch couples moving from the Netherlands to Thailand. It is based on in-depth interviews with 12 Thai-Dutch couples who moved from the Netherlands to Thailand and resided in Thailand for between three and twelve years. The study explores the key role of mobility capital in stimulating Thai-Dutch couples’ imaginations, their perceptions, and their potential for movement. In terms of their ‘mobility turn’, I argue that their trajectories of mobility and relocation to Thailand should not be understood as a linear and permanent movement from the Netherlands to Thailand. Rather, this mobility is fluid, complicated, and sometimes fragmented. It is marked by the practices of waiting, hesitation to move, imagining their return, preparing to move, having actually returned, and travelling back and forth between Thailand and the Netherlands. It also encompasses local spatial move-ment in daily life.
description: Advances in Southeast Asian Studies, Vol. 15 No. 2 (2022): Challenging Stereotypes in Europe-Thailand Transnational Migration
A $K_s$-band selected catalogue of objects in the ALHAMBRA survey
Creators: name: Nieves-Seoane, L.
name: Fernandez-Soto, A.
name: Arnalte-Mur, P.
name: Molino, A.
name: Stefanon, M.
name: Ferreras, I.
name: Ascaso, B.
name: Ballesteros, F. J.
name: Cristóbal-Hornillos, D.
name: López-Sanjuán, C.
name: Hurtado-Gil, Ll.
name: Márquez, I.
name: Masegosa, J.
name: Aguerri, J. A. L.
name: Alfaro, E.
name: Aparicio-Villegas, T.
name: Benítez, N.
name: Broadhurst, T.
name: Cabrera-Caño, J.
name: Castander, F. J.
name: Cepa, J.
name: Cerviño, M.
name: Delgado, R. M. González
name: Husillos, C.
name: Infante, L.
name: Martínez, V. J.
name: Moles, M.
name: del Olmo, A.
name: Perea, J.
name: Pović, M.
name: Prada, F.
name: Quintana, J. M.
name: Troncoso-Iribarren, P.
name: Viironen, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The original ALHAMBRA catalogue contained over 400,000 galaxies selected using a synthetic F814W image, to the magnitude limit AB(F814W)$\approx$24.5. Given the photometric redshift depth of the ALHAMBRA multiband data (=0.86) and the approximately $I$-band selection, there is a noticeable bias against red objects at moderate redshift. We avoid this bias by creating a new catalogue selected in the $K_s$ band. This newly obtained catalogue is certainly shallower in terms of apparent magnitude, but deeper in terms of redshift, with a significant population of red objects at $z>1$. We select objects using the $K_s$ band images, which reach an approximate AB magnitude limit $K_s \approx 22$. We generate masks and derive completeness functions to characterize the sample. We have tested the quality of the photometry and photometric redshifts using both internal and external checks. Our final catalogue includes $\approx 95,000$ sources down to $K_s \approx 22$, with a significant tail towards high redshift. We have checked that there is a large sample of objects with spectral energy distributions that correspond to that of massive, passively evolving galaxies at $z > 1$, reaching as far as $z \approx 2.5$. We have tested the possibility of combining our data with deep infrared observations at longer wavelengths, particularly Spitzer IRAC data.
description: Accepted for publication in MNRAS, 19 pages, 21 figures
Site-resolved imaging of single atoms with a Faraday quantum gas microscope
Creators: name: Yamamoto, Ryuta
name: Kobayashi, Jun
name: Kato, Kohei
name: Kuno, Takuma
name: Sakura, Yuto
name: Takahashi, Yoshiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We successfully demonstrate a quantum gas microscopy using the Faraday effect which has an inherently non-destructive nature. The observed Faraday rotation angle reaches 3.0(2) degrees for a single atom. We reveal the non-destructive feature of this Faraday imaging method by comparing the detuning dependence of the Faraday signal strength with that of the photon scattering rate. We determine the atom distribution with deconvolution analysis. We also demonstrate the absorption and the dark field Faraday imaging, and reveal the different shapes of the point spread functions for these methods, which are fully explained by theoretical analysis. Our result is an important first step towards an ultimate quantum non-demolition site-resolved imaging and furthermore opens up the possibilities for quantum feedback control of a quantum many-body system with a single-site resolution.
description: 8 pages, 8 figures
Forecasting vector autoregressions with mixed roots in the vicinity of unity
Creators: name: Tu, Yundong
name: Xie, Xinling
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 80699
subject: Information Systems not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: This article evaluates the forecast performance of model averaging forecasts in a nonstationary vector autoregression with mixed roots in the vicinity of unity. The deviation from unit root allows for local to unity, moderate deviation from unity and strong unit root, and the direction of such deviation could be from either the stationary or the explosive side. We provide a theoretical foundation for comparison among various forecasts, including the least squares estimator, the constrained estimator imposing the unit root constraint, and the selection or average over these two basic estimators. Furthermore, three new types of estimators are constructed, i.e., the bagging versions of the pretest estimator, the Mallows-pretest estimator that marries the Mallows averaging criterion and the Wald test, and the Mallows-bagging estimator that combines the Mallows averaging criterion and bagging technique. The asymptotic risks are shown to depend on the local parameters, which are not consistently estimable. Via Monte Carlo simulations, graphic comparisons indicate that the Mallows averaging estimator has both robust and outstanding forecasting performance. Model averaging over the vector autoregressive lag order is further considered to address the issue of model uncertainty in the lag specification. Finite sample simulations show that the Mallows averaging estimator performs superior to other frequently used selection and averaging methods. The application to forecasting the financial indices popularly used in the predictive regression further illustrates the practical merit of the proposed estimator.
Physical parameters of late M-type members of Chamaleon I and TW Hydrae Association: Dust settling, age dispersion and activity
Creators: name: Bayo, A.
name: Barrado, D.
name: Allard, F.
name: Henning, T.
name: Comeron, F.
name: Morales-Calderon, M.
name: Rajpurohit, A. S.
name: Ramırez, K. Pena
name: Beamın, J. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Although mid-to-late type M dwarfs are the most common stars in our stellar neighborhood, our knowledge of these objects is still limited. Open questions include the evolution of their angular momentum, internal structures, dust settling in their atmospheres, age dispersion within populations. In addition, at young ages, late-type Ms have masses below the hydrogen burning limit and therefore are key objects in the debate on the brown dwarf mechanism of formation. In this work we determine and study in detail the physical parameters of two samples of young, late M-type sources belonging to either the Chamaeleon I Dark Cloud or the TW Hydrae Association and compare them with the results obtained in the literature for other young clusters and also for older, field, dwarfs. We used multi-wavelength photometry to construct and analyze SEDs to determine general properties of the photosphere and disk presence. We also used low resolution optical and near-infrared spectroscopy to study activity, accretion, gravity and effective temperature sensitive indicators. We propose a VO-based spectral index that is both temperature and age sensitive. We derived physical parameters using independent techniques confirming the already common feature/problem of the age/luminosity spread. In particular, we highlight two brown dwarfs showing very similar temperatures but clearly different surface gravity (explained invoking extreme early accretion). We also show how, despite large improvement in the dust treatment in theoretical models, there is still room for further progress in the simultaneous reproduction of the optical and near-infrared features of these cold young objects.
description: 26 pages, 22 figures, 10 tables. Accepted in MNRAS
Festivals and the Theory of Inclusive Development in Malaysia: Perspectives from a Festival Organizer
Creators: name: Goh, Yi Sheng
name: Teh, Pek Yen
Publisher: name: Advances in Southeast Asian Studies
Year: 2022

description: Festivals play a vital role in catalyzing inclusive development through their ability to in-crease social capital. They can enhance social ties through creating shared knowledge, building trust, and forming networks. In the Malaysian context, few studies have been done on how festivals promote inclusive development. Hence, this paper seeks to present a case study on Pangkor Island Festival (PIF), which is a Malaysian arts and culture festival, concerning the process, opportunities, and challenges of inclusive development from the perspectives of the festival organizer. In-depth interviews with the festival organizer and curator and field observations were conducted. Findings show that festivals promote inclusive development through a five-phase process, from establishing relationships with residents and exploring local assets to the sustainability of PIF and inclusive development. This study also suggests three-fold opportunities that include community cohesiveness, revitalization, and cultural value restoration as well as challenges of securing suitable stakeholders
description: Advances in Southeast Asian Studies, Vol. 15 No. 2 (2022): Challenging Stereotypes in Europe-Thailand Transnational Migration
Robust nonparametric frontier estimation in two steps
Creators: name: Chen, Yining
name: Torrent, Hudson S.
name: Ziegelmann, Flavio A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: We propose a robust methodology for estimating production frontiers with multi-dimensional input via a two-step nonparametric regression, in which we estimate the level and shape of the frontier before shifting it to an appropriate position. Our main contribution is to derive a novel frontier estimation method under a variety of flexible models which is robust to the presence of outliers and possesses some inherent advantages over traditional frontier estimators. Our approach may be viewed as a simplification, yet a generalization, of those proposed by Martins-Filho and coauthors, who estimate frontier surfaces in three steps. In particular, outliers, as well as commonly seen shape constraints of the frontier surfaces, such as concavity and monotonicity, can be straightforwardly handled by our estimation procedure. We show consistency and asymptotic distributional theory of our resulting estimators under standard assumptions in the multi-dimensional input setting. The competitive finite-sample performances of our estimators are highlighted in both simulation studies and empirical data analysis.
Social Networks and Organization of Thai Migrants in Europe: An Interview with Chongcharoen Sornkaew Grimsmann, President (2019-2022) of Thai Women Network in Europe
Creators: name: Sunanta, Sirijit
name: Fresnoza-Flot, Asuncion
Publisher: name: Advances in Southeast Asian Studies
Year: 2022

description: The interview with Mrs. Chongcharoen Sornkaew Grimsmann, a long-term member and former president of Thai Women Network in Europe (TWNE), was originally conducted in English over email by Sirijit Sunanta and Asuncion Fresnoza-Flot in July 2022. It was supplemented by an online interview (via WebEx) in Thai by Sirijit Sunanta in November 2022. Mrs. Grimsmann served as the President of TWNE from 2019 to 2022. TWNE is well-established and one of the most active organizations of Thai migrant women with individual and organizational members in 16 European countries, the US, and Thailand. TWNE seeks to collaborate with governmental and non-governmental organizations, both in Thailand and the destination countries, to improve the welfare of Thai migrant women. They organize annual general meetings to discuss topics relevant to Thai migrant women’s lives in destination countries and publish an annual newsletter Sarn Satree (สารสตรี) to circulate information. Mrs. Grimsmann has extensive experience of providing community service as a social volunteer and working with international organizations, particularly in the area of women and children’s welfare. She is now based in France and Thailand.
description: Advances in Southeast Asian Studies, Vol. 15 No. 2 (2022): Challenging Stereotypes in Europe-Thailand Transnational Migration
Book Review: Fresnoza-Flot, A., & Liu-Farrer, G. (Eds.). (2022). Tangled Mobilities: Places, Affects, and Personhood Across Social Spheres in Asian Migration
Creators: name: Chen, Cai
Publisher: name: Advances in Southeast Asian Studies
Year: 2022

description: -
description: Advances in Southeast Asian Studies, Vol. 15 No. 2 (2022): Challenging Stereotypes in Europe-Thailand Transnational Migration
Dark matter concentrations in galactic nuclei according to polytropic models
Creators: name: Saxton, Curtis J.
name: Younsi, Ziri
name: Wu, Kinwah
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the radial profiles of galaxies where the nuclear region is self-gravitating, consisting of self-interacting dark matter (SIDM) with $F$ degrees of freedom. For sufficiently high density this dark matter becomes collisional, regardless of its behaviour on galaxy scales. Our calculations show a spike in the central density profile, with properties determined by the dark matter microphysics, and the densities can reach the `mean density' of a black hole (from dividing the black-hole mass by the volume enclosed by the Schwarzschild radius). For a galaxy halo of given compactness ($χ=2GM/Rc^2$), certain values for the dark matter entropy yield a dense central object lacking an event horizon. For some soft equations of state of the SIDM (e.g. $F\ge6$), there are multiple horizonless solutions at given compactness. Although light propagates around and through a sphere composed of dark matter, it is gravitationally lensed and redshifted. While some calculations give non-singular solutions, others yield solutions with a central singularity. In all cases the density transitions smoothly from the central body to the dark-matter envelope around it, and to the galaxy's dark matter halo. We propose that pulsar timing observations will be able to distinguish between systems with a centrally dense dark matter sphere (for different equations of state) and conventional galactic nuclei that harbour a supermassive black hole.
description: MNRAS accepted, 24 pages, 12 figures
Effect of spectral index distribution on estimating the AGN radio luminosity function
Creators: name: Yuan, Zunli
name: wang, Jiancheng
name: Zhou, Ming
name: Mao, Jirong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper, we scrutinize the effect of spectral index distribution on estimating the AGN (active galactic nucleus) radio luminosity function (RLF) by a Monte Carlo method. We find that the traditional bivariate RLF estimators can cause bias in varying degree. The bias is especially pronounced for the flat-spectrum radio sources whose spectral index distribution is more scattered. We believe that the bias is caused because the $K$-corrections complicate the truncation boundary on the $L-z$ plane of the sample, but the traditional bivariate RLF estimators have difficulty in dealing with this boundary condition properly. We suggest that the spectral index distribution should be incorporated into the RLF analysis process to obtain a robust estimation. This drives the need for a trivariate function of the form $Φ(α,z,L)$ which we show provides an accurate basis for measuring the RLF.
description: 8 pages, 4 figures, Accepted for publication in ApJ
Role of quantum fluctuations in structural dynamics of liquids of light molecules
Creators: name: Agapov, A.
name: Novikov, V. N.
name: Kisliuk, A.
name: Richert, R.
name: Sokolov, A. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A possible role of quantum effects, such as tunneling and zero-point energy, in the structural dynamics of supercooled liquids is studied by dielectric spectroscopy. Presented results demonstrate that the liquids, bulk 3-methylpentane 3MP and confined normal and deuterated water have low glass transition temperature and unusually low for their class of materials steepness of the temperature dependence of structural relaxation, or fragility. Although we do not find any signs of tunneling in structural relaxation of these liquids, their unusually low fragility can be well described by the influence of the quantum fluctuations. Confined water presents especially interesting case in comparison to the earlier data on bulk low-density amorphous and vapor deposited water. Confined water exhibits much weaker isotope effect than bulk water, although the effect is still significant. We show that it can be ascribed to the change of the energy barrier for relaxation due to a decrease in the zero-point energy upon D-H substitution. The observed difference in the behavior of confined and bulk water demonstrates high sensitivity of quantum effects to the barrier heights and structure of water. Moreover, these results demonstrate that extrapolation of confined water properties to the bulk water behavior is questionable.
description: 24 pages, 6 figures
Stability of $SU(N_c)$ QCD3 from the $ε$-Expansion
Creators: name: Goldman, Hart
name: Mulligan, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: QCD with gauge group $SU(N_c)$ flows to an interacting conformal fixed point in three spacetime dimensions when the number of four-component Dirac fermions $N_f \gg N_c$. We study the stability of this fixed point via the $ε$-expansion about four dimensions. We find that when the number of fermions is lowered to $N_f^{\rm crit} \approx {11 \over 2} N_c + (6 + {4 \over N_c}) ε$, a certain four-fermion operator becomes relevant and the theory flows to a new infrared fixed point (massless or massive). F-theorem or entanglement monotonicity considerations complement our $ε$-expansion calculation.
description: 21 pages, including two appendices and three figures
Two new high energy gamma-ray blazar candidates
Creators: name: Campana, R.
name: Maselli, A.
name: Bernieri, E.
name: Massaro, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the detection of two new gamma-ray sources in the Fermi-LAT sky (Pass 8) at energies higher than 20 GeV, and confirmed at lower energies, using a source detection tool based on the Minimum Spanning Tree algorithm. One of these sources, at a Galactic latitude of about -4°, is a new discovery, while the other was previously reported above 50 GeV in the 2FHL catalogue. We searched for archival multi-wavelength data of possible counterparts and found interesting candidates. Both objects are radio sources and their WISE infrared colours are typical of blazars. While for the former source no optical spectra are available, for the latter a puzzling optical spectrum corresponding to a white dwarf star is found in the 6dF database. We discuss the spectral energy distributions of both sources and possible interpretations.
description: 7 pages, 6 figures. Accepted for publication in MNRAS
Compact and "compact" operators on the standard Hilbert module over a $W^*$ algebra
Creators: name: Kečkić, Dragoljub J
name: Lazović, Zlatko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary: 46L08, Secondary: 47B07, 54E15

description: We construct a topology on the standard Hilbert module $l^2(\mathcal A)$ over a unital $W^*$-algebra $\mathcal A$ such that any "compact" operator, (i.e.\ any operator in the norm closure of the linear span of the operators of the form $x\mapsto\leftz$) maps bounded sets into totally bounded sets.
description: 11 pages
Debris Disks in the Scorpius-Centaurus OB Association Resolved by ALMA
Creators: name: Lieman-Sifry, Jesse
name: Hughes, A. Meredith
name: Carpenter, John M.
name: Gorti, Uma
name: Hales, Antonio
name: Flaherty, Kevin M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a CO(2-1) and 1240 um continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0.5-1 arcsec with the Atacama Large Millimeter/Submillimeter Array (ALMA). The sample was selected for large infrared excess and age ~10 Myr, to characterize the prevalence of molecular gas emission in young debris disks. We identify three CO-rich debris disks, plus two additional tentative (3-sigma) CO detections. Twenty disks were detected in the continuum at the >3-sigma level. For the 12 disks in the sample that are spatially resolved by our observations, we perform an independent analysis of the interferometric continuum visibilities to constrain the basic dust disk geometry, as well as a simultaneous analysis of the visibilities and broad-band spectral energy distribution to constrain the characteristic grain size and disk mass. The gas-rich debris disks exhibit preferentially larger outer radii in their dust disks, and a higher prevalence of characteristic grain sizes smaller than the blowout size. The gas-rich disks do not exhibit preferentially larger dust masses, contrary to expectations for a scenario in which a higher cometary destruction rate would be expected to result in a larger mass of both CO and dust. The three debris disks in our sample with strong CO detections are all around A stars: the conditions in disks around intermediate-mass stars appear to be the most conducive to the survival or formation of CO.
description: 16 pages, 6 figures, accepted for publication in ApJ
Electromagnetic Boundaries with PEC/PMC Equivalence
Creators: name: Lindell, Ismo V.
name: Sihvola, Ari
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The most general electromagnetic boundary, defined by linear and local boundary conditions, is defined in terms of conditions which can be called generalized impedance boundary conditions. Requiring that the boundary be equivalent to PEC and PMC boundaries for its two eigen-plane waves, which property is known to exist for many of its special cases, it is shown that the recently introduced Generalized Soft-and-Hard/DB (GSHDB) boundary is the most general boundary satisfying this property.
Verification of high-speed solar wind stream forecasts using operational solar wind models
Creators: name: Reiss, Martin A.
name: Temmer, Manuela
name: Veronig, Astrid M.
name: Nikolic, Ljubomir
name: Vennerstrom, Susanne
name: Schoengassner, Florian
name: Hofmeister, Stefan J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: High-speed solar wind streams emanating from coronal holes are frequently impinging on the Earth's magnetosphere causing recurrent, medium-level geomagnetic storm activity. Modeling high-speed solar wind streams is thus an essential element of successful space weather forecasting. Here we evaluate high-speed stream forecasts made by the empirical solar wind forecast (ESWF) and the semiempirical Wang-Sheeley-Arge (WSA) model based on the in situ plasma measurements from the ACE spacecraft for the years 2011 to 2014. While the ESWF makes use of an empirical relation between the coronal hole area observed in Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) images and solar wind properties at the near-Earth environment, the WSA model establishes a link between properties of the open magnetic field lines extending from the photosphere to the corona and the background solar wind conditions. We found that both solar wind models are capable of predicting the large-scale features of the observed solar wind speed (root-mean-square error, RMSE $\approx$ 100 km/s) but tend to either overestimate (ESWF) or underestimate (WSA) the number of high-speed solar wind streams (threat score, TS $\approx$ 0.37). The predicted high-speed streams show typical uncertainties in the arrival time of about 1 day and uncertainties in the speed of about 100 km/s. General advantages and disadvantages of the investigated solar wind models are diagnosed and outlined.
Scale-Dependent Pedotransfer Functions Reliability for Estimating Saturated Hydraulic Conductivity
Creators: name: Ghanbarian, Behzad
name: Taslimitehrani, Vahid
name: Pachepsky, Yakov A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Saturated hydraulic conductivity Ksat is a fundamental characteristic in modeling flow and contaminant transport in soils and sediments. Therefore, many models have been developed to estimate Ksat from easily measureable parameters, such as textural properties, bulk density, etc. However, Ksat is not only affected by textural and structural characteristics, but also by scale e.g., internal diameter and height. Using the UNSODA database and the contrast pattern aided regression (CPXR) method, we recently developed scale-dependent pedotransfer functions to estimate Ksat from textural data, bulk density, and sample dimensions. The main objectives of this study were evaluating the proposed pedotransfer functions using a larger database, and comparing them with seven other models. For this purpose, we selected more than nineteen thousands soil samples from all around the United States. Results showed that the scale-dependent pedotransfer functions estimated Ksat more accurately than seven other models frequently used in the literature.
Adaptive multimodal biosignal control for exoskeleton supported stroke rehabilitation
Creators: name: Seeland, Anett
name: Tabie, Marc
name: Kim, Su Kyoung
name: Kirchner, Frank
name: Kirchner, Elsa Andrea
Publisher: name: IEEE
Year: 2017
Subjects: subject: Adaptive control
subject: Electroencephalography - EEG
subject: Medical robotics
subject: Neurocontrollers
subject: Patient rehabilitation
subject: 0

description: A relevant issue of neuro-interfacing wearable robots in rehabilitation is the necessity to have training data, since the collection of sufficient data from patients within a reasonable recording time is not always possible. However, the use of historic data (e.g., session-to-session transfer, subject-to-subject transfer) can often lead to a reduction in classification performance which is affected by the selection of the historic data (i.e., which historic data was chosen for transfer). In this paper, we analyze two approaches to handle this reduction. First, we used incremental algorithms that can be adapted to the current session when trainable components (the spatial filter and the classifier) are transferred between different sessions. Second, we increased the number of sessions to learn more generalized models. To evaluate the approaches, we used electroencephalographic data that was recorded as training data for demonstrating our neuro-interfacing wearable robot in the application of upper-body sensorimotor rehabilitation. The data was collected from the same healthy subject on 14 different days (14 sessions). Our results showed that the use of a mixture of training sessions improved the classification performance. Further, we could show that the adaptive approaches contributed to less variability in performance that allows the system to be more robust. Hence, one can efficiently use both approaches (i.e., adapting and generalizing the models) depending on how much training data is available. Finally, the analyzed approaches are very promising to increase system applicability in upper-body sensorimotor robotic rehabilitation.
Kinematic Analysis of a Novel Parallel 2SPRR+1U Ankle Mechanism in Humanoid Robot
Creators: name: Kumar, Shivesh
name: Nayak, Abhilash
name: Peters, Heiner
name: Schulz, Christopher
name: Müller, Andreas
name: Kirchner, Frank
Publisher: name: Springer
Year: 2018
Subjects: subject: Kinematic analysis
subject: Parallel mechanisms
subject: Ankle joint
subject: Humanoids
subject: 0

description: Parallel mechanisms are increasingly being used as modular subsystems in various robots and man-machine interfaces for their good stiffness, payload to weight ratio and dynamic properties. This paper presents the kinematic analysis of a novel parallel mechanism of type 2SPRR+1U for application as a humanoid ankle joint with two degrees of freedom. Tools from computational algebraic geometry are used to provide solutions to the forward and inverse kinematics problems. These are further used to characterize the workspace of this mechanism and provide description of its singularity curves. The kinematic analysis demonstrates that the chosen design can provide human ankle like workspace and good torque transmission capability without suffering from any singularities which makes it an ideal candidate for ankle joint module in humanoid robots.
Conclusions
Creators: name: Leidner, Daniel Sebastian
Publisher: name: Fachbereich 03: Mathematik/Informatik (FB 03)
Year: 2018
Subjects: subject: Service Robots
subject: Advanced cognitive reasoning
subject: Compliant interaction capabilities
subject: Compliant Manipulation
subject: Physical compliant interaction
subject: 0

description: The fundamental hypothesis that “there is a need for intelligent physical compliance was formulated in the introduction of this work, in order to account for the shortcomings of today’s service robots. The hypothesis builds on the notion that particularly non-traditional robot tasks outside factory buildings demand compliant interaction capabilities in combination with advanced cognitive reasoning skills. However, this constitutes a need which is not even covered for application in laboratory environments. To overcome this issue, intelligent decision making strategies for compliant manipulation tasks have to be developed. That is, a robot has to process diverse task knowledge to plan effect-oriented actions, parameterize and execute these actions accordingly, and eventually interpret the outcome of the actions on a high-level of abstraction to estimate the task performance qualitatively. In order to facilitate this reasoning, suitable representations that incorporate the properties of physical compliant interaction have to be provided.
Twisted sectors from plane partitions
Creators: name: Datta, Shouvik
name: Gaberdiel, Matthias R.
name: Li, Wei
name: Peng, Cheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Twisted sectors arise naturally in the bosonic higher spin CFTs at their free points, as well as in the associated symmetric orbifolds. We identify the coset representations of the twisted sector states using the description of W_\infty representations in terms of plane partitions. We confirm these proposals by a microscopic null-vector analysis, and by matching the excitation spectrum of these representations with the orbifold prediction.
description: 31 pages, 5 figures
Local Stellar Kinematics from RAVE data - VII. Metallicity Gradients from Red Clump Stars
Creators: name: Tas, O. Onal
name: Bilir, S.
name: Seabroke, G. M.
name: Karaali, S.
name: Ak, S.
name: Ak, T.
name: Bostanci, Z. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the Milky Way Galaxy's radial and vertical metallicity gradients using a sample of 47,406 red clump stars from the RAVE DR4. This sample is more than twice the size of the largest sample in the literature investigating radial and vertical metallicity gradients. The absolute magnitude of Groenewegen (2008) is used to determine distances to our sample stars. The resulting distances agree with the RAVE DR4 distances Binney et al. (2014) of the same stars. Our photometric method also provides distances to 6185 stars that are not assigned a distance in RAVE DR4. The metallicity gradients are calculated with their current orbital positions ($R_{gc}$ and $Z$) and with their orbital properties (mean Galactocentric distance, $R_{m}$ and $z_{max}$), as a function of the distance to the Galactic plane: d[Fe/H]/d$R_{gc}=$-$0.047\pm0.003$ dex/kpc for $0\leq |Z|\leq0.5$ kpc and d[Fe/H]/d$R_m=$-$0.025\pm0.002$ dex/kpc for $0\leq z_{max}\leq0.5$ kpc. This reaffirms the radial metallicity gradient in the thin disc but highlights that gradients are sensitive to the selection effects caused by the difference between $R_{gc}$ and $R_{m}$. The radial gradient is flat in the distance interval 0.5-1 kpc from the plane and then becomes positive greater than 1 kpc from the plane. The radial metallicity gradients are also eccentricity dependent. We showed that d[Fe/H]/d$R_m=$-$0.089\pm0.010$, -$0.073\pm0.007$, -$0.053\pm0.004$ and -$0.044\pm0.002$ dex/kpc for $e_p\leq0.05$, $e_p\leq0.07$, $e_p\leq0.10$ and $e_p\leq0.20$ sub-samples, respectively, in the distance interval $0\leq z_{max}\leq0.5$ kpc. Similar trend is found for vertical metallicity gradients. Both the radial and vertical metallicity gradients are found to become shallower as the eccentricity of the sample increases. These findings can be used to constrain different formation scenarios of the thick and thin discs.
description: 18 pages, including 16 figures and 6 tables, accepted for publication in PASA
Size-dependent contact angle, and wetting and drying transition of a droplet adsorbed on to a spherical substrate: Line tension effect
Creators: name: Iwamatsu, Masao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The size-dependent contact angle and the drying and wetting morphological transition are studied with respect to the volume change for a spherical cap-shaped droplet placed on a spherical substrate. The line-tension effect is included using the rigorous formula for the Helmholtz free energy in the droplet capillary model. A morphological drying transition from a cap-shaped to a spherical droplet occurs when the substrate is hydrophobic and the droplet volume is small, similar to the transition predicted on a flat substrate. In addition, a morphological wetting transition from a cap-shaped to a wrapped spherical droplet occurs for a hydrophilic substrate and a large droplet volume. The contact angle depends on the droplet size: it decreases as the droplet volume increases when the line tension is positive, whereas it increases when the line tension is negative. The spherical droplets and wrapped droplets are stable when the line tension is positive and large.
description: 10 pages 11 figures, to be published in Physical Review E
From Human to Robot Everyday Activity
Creators: name: Mason, Celeste
name: Gadzicki, Konrad
name: Meier, Moritz
name: Ahrens, Florian
name: Kluss, Thorsten
name: Maldonado Cañón, Jaime Leonardo
name: Putze, Felix
name: Fehr, Thorsten
name: Zetzsche, Christoph
name: Herrmann, Manfred
name: Schill, Kerstin
name: Schultz, Tanja
Publisher: name: Fachbereich 03: Mathematik/Informatik (FB 03)
Year: 2020
Subjects: subject: Cloud Computing
subject: Data analysis
subject: Annotations
subject: Pipelines
subject: Robot sensing systems
subject: Planning
subject: Labeling
subject: 0

description: The Everyday Activities Science and Engineering (EASE) Collaborative Research Consortium’s mission to enhance the performance of cognition-enabled robots establishes its foundation in the EASE Human Activities Data Analysis Pipeline. Through collection of diverse human activity information resources, enrichment with contextually relevant annotations, and subsequent multimodal analysis of the combined data sources, the pipeline described will provide a rich resource for robot planning researchers, through incorporation in the OpenEASE cloud platform.
Spin-torque switching in large size nano-magnet with perpendicular magnetic fields
Creators: name: Luo, Linqiang
name: Kabir, Mehdi
name: Dao, Nam
name: Kittiwatanakul, Salinporn
name: Cyberey, Michael
name: Wolf, Stuart A.
name: Stan, Mircea
name: Lu, Jiwei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: DC current induced magnetization reversal and magnetization oscillation was observed in 500 nm large size Co90Fe10/Cu/Ni80Fe20 pillars. A perpendicular external field enhanced the coercive field separation between the reference layer (Co90Fe10) and free layer (Ni80Fe20) in the pseudo spin valve, allowing a large window of external magnetic field for exploring the free-layer reversal. The magnetization precession was manifested in terms of the multiple peaks on the differential resistance curves. Depending on the bias current and applied field, the regions of magnetic switching and magnetization precession on a dynamical stability diagram has been discussed in details. Micromagnetic simulations are shown to be in good agreement with experimental results and provide insight for synchronization of inhomogenieties in large sized device. The ability to manipulate spin-dynamics on large size devices could prove useful for increasing the output power of the spin-transfer nano-oscillators (STNOs).
description: 12 pages, 4 figures. This work has been presented in APS March meeting, Baltimore, Mar 14-18, 2016
Art Nouveau in Barcelona
Creators: name: Bishop, Danielle
name: Pareja-Eastaway, Montserrat
name: Simó Solsona, Montserrat
Publisher: name: Zenodo
Year: 2022
Subjects: Barcelona, Art Nouveau, Modernisme, Cultural Tourism, Sustainability

description: Poster summarizing the results of the University of Barcelona's field work during the SPOT project. Displayed at the SPOT project's final conference in Vienna, Austria, 1 December 2022.
Global Seismology of the Sun
Creators: name: Basu, Sarbani
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The seismic study of the Sun and other stars offers a unique window into the interior of these stars. Thanks to helioseismology, we know the structure of the Sun to admirable precision. In fact, our knowledge is good enough to use the Sun as a laboratory. We have also been able to study the dynamics of the Sun in great detail. Helioseismic data also allow us to probe the changes that take place in the Sun as solar activity waxes and wanes. The seismic study of stars other than the Sun is a fairly new endeavour, but we are making great strides in this field. In this review I discuss some of the techniques used in helioseismic analyses and the results obtained using those techniques. In this review I focus on results obtained with global helioseismology, i.e., the study of the Sun using its normal modes of oscillation. I also briefly touch upon asteroseismology, the seismic study of stars other than the Sun, and discuss how seismic data of others stars are interpreted.
description: To appear in Living Reviews of Solar Physics
New Characterization of Appell polynomials
Creators: name: Bayad, Abdelmejid
name: Komatsu, Takao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove characterizations of Appell polynomials by means of symmetric property. For these polynomials, we establish a simple linear expression in terms of Bernoulli and Euler polynomials. As applications, we give interesting examples. In addition, from our study, we obtain Fourier expansions of Appell polynomials. This result recovers Fourier expansions known for Bernoulli and Euler polynomials and obtains the Fourier expansions for higher order Bernoulli-Euler's one.
Platform for Studying Self-Repairing Auto-Corrections in Mobile Text Entry based on Brain Activity, Gaze, and Context
Creators: name: Putze, Felix
name: Ihrig, Tilman
name: Schultz, Tanja
name: Stuerzlinger, Wolfgang
Publisher: name: ACM
Year: 2020
Subjects: subject: Text entry
subject: Auto-correction
subject: Self-repair
subject: Eye gaze
subject: EEG
subject: 0

description: Auto-correction is a standard feature of mobile text entry. While the performance of state-of-the-art auto-correct methods is usually relatively high, any errors that occur are cumbersome to repair, interrupt the flow of text entry, and challenge the user's agency over the process. In this paper, we describe a system that aims to automatically identify and repair auto-correction errors. This system comprises a multi-modal classifier for detecting auto-correction errors from brain activity, eye gaze, and context information, as well as a strategy to repair such errors by replacing the erroneous correction or suggesting alternatives. We integrated both parts in a generic Android component and thus present a research platform for studying self-repairing end-to-end systems. To demonstrate its feasibility, we performed a user study to evaluate the classification performance and usability of our approach.
Minka House lean manufacturing work cell : a flexible work cell proposal
Creators: name: Loveridge, Jacob
name: Greulich, Nik
name: Wolking, Dan
Publisher: name: Unknown
Year: 2018

description: Design a lean work cell to manufacture parts for the MAGIC Model House
(Minka). MAGIC stands for Multi-Ability, Multi-Generational, Inclusive Communities.
One core tenant of the Minka house philosophy is to provide for local
manufacturing and assembly. This project will investigate work cell options in The
University of Southern Indiana Applied Engineering Center and the Theatre Support
Center.
It is recommended to locate the work cell in the Theatre Support Center. The
cost of shipping multiple housing units already exceeds that of the cost of producing a
manufacturing cell on USI's campus, so the reasoning behind it is justified if more Minka
houses were constructed in the Evansville area.
Straintronic magneto-tunneling-junction based ternary content addressable memory
Creators: name: Manasi, S. Dey
name: Rashid, M. M. Al
name: Atulasimha, J.
name: Bandyopadhyay, S.
name: Trivedi, A. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Straintronic magneto-tunneling junction (s-MTJ) switches, whose resistances are controlled with voltage-generated strain in the magnetostrictive free layer of the MTJ, are extremely energy-efficient switches that would dissipate a few aJ of energy during switching. Unfortunately, they are also relatively error-prone and have low resistance on/off ratio. This suggests that as computing elements, they are best suited for non-Boolean architectures. Here, we propose and analyze a ternary content addressable memory implemented with s-MTJs and some transistors. It overcomes challenges encountered by traditional all-transistor implementations, resulting in exceptionally high cell density.
description: 8 pages, 11 figures
Eye movements reveal memory processes during similarity- and rule-based decision making
Creators: name: Scholz, Agnes
name: Von Helversen, Bettina
name: Rieskamp, Jörg
Publisher: name: Elsevier
Year: 2015
Subjects: subject: Episodic memory
subject: Eye movements
subject: Looking-at-nothing
subject: Multi-cue decision making
subject: Process tracing
subject: Similarity
subject: 0

description: Recent research suggests that when people retrieve information from memory they tend to fixate on the location where the information had appeared during encoding. We used this phenomenon to investigate if different information is activated in memory when people use a rule- versus a similarity-based decision strategy. In two studies, participants first memorized multiple pieces of information about various job candidates (exemplars). In subsequent test trials they judged the suitability of new candidates that varied in their similarity to the previously learned exemplars. Results show that when using similarity, but not when using a rule, participants fixated longer on the previous location of exemplars that resembled the new candidates than on the location of dissimilar exemplars. This suggests that people using similarity retrieve previously learned exemplars, whereas people using a rule do not. The study illustrates that eye movements can provide new insights into the memory processes underlying decision making.