cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tunnel magnetoresistance and spin-transfer-torque switching in polycrystalline Co2FeAl full-Heusler alloy magnetic tunnel junctions on Si/SiO2 amorphous substrates
Creators: name: Wen, Zhenchao
name: Sukegawa, Hiroaki
name: Kasai, Shinya
name: Inomata, Koichiro
name: Mitani, Seiji
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied polycrystalline B2-type Co2FeAl (CFA) full-Heusler alloy based magnetic tunnel junctions (MTJs) fabricated on a Si/SiO2 amorphous substrate. Polycrystalline CFA films with a (001) orientation, a high B2 ordering, and a flat surface were achieved using a MgO buffer layer. A tunnel magnetoresistance (TMR) ratio up to 175% was obtained for an MTJ with a CFA/MgO/CoFe structure on a 7.5-nm-thick MgO buffer. Spin-transfer torque induced magnetization switching was achieved in the MTJs with a 2-nm-thick polycrystalline CFA film as a switching layer. Using a thermal activation model, the intrinsic critical current density (Jc0) was determined to be 8.2 x 10^6 A/cm^2, which is lower than 2.9 x 10^7 A/cm^2, the value for epitaxial CFA-MTJs [Appl. Phys. Lett. 100, 182403 (2012)]. We found that the Gilbert damping constant evaluated using ferromagnetic resonance measurements for the polycrystalline CFA film was ~0.015 and was almost independent of the CFA thickness (2~18 nm). The low Jc0 for the polycrystalline MTJ was mainly attributed to the low damping of the CFA layer compared with the value in the epitaxial one (~0.04).
description: 7 figures, Physical Review Applied 2014
Für die Priester und Ordensleute, die sich der religiösen Unterweisung und der geistlichen Formung der Jugend widmen
Creators: name: Congar, Yves
Publisher: name: Herder Korrespondenz
Year: 1970

description: Herder Korrespondenz, Bd. 9 Nr. 6 (1954): Herder Korrespondenz, Band 9, Heft 6
Physical Origin of Current Partition at a Topological Trifurcation
Creators: name: You, Sanyi
name: Hou, Tao
name: Qiao, Zhenhua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In gated bilayer graphene, topological zero-line modes (ZLMs) appear along lines separating regions with opposite valley Hall topologies. Although it is experimentally difficult to design the electric gates to realize ZLMs due to the extremely challenging techniques, twisted bilayer graphene provides a natural platform to produce ZLMs in the presence of uniform electric field. In this Letter, we develop a set of wavepacket dynamics, which can be utilized to characterize various gapless edge modes and can quantitatively reproduce the electronic transport properties at topological intersections. To our surprise, in the minimally twisted bilayer graphene where a topological trifurcation intersection naturally arises, we show that the counterintuitive current partition (i.e., the direct transport propagation) originates from the microscopic mechanism "bypass jump". Our method can be applied to understand the microscopic pictures of the electronic transport features of all kinds of topological states.
К вопросу о таджикско-китайском сотрудничестве в сфере образования
Creators: name: Алимов Рашид Кутбиддинович
Publisher: name: Китай в мировой и региональной политике. История и современность
Year: 2013
Subjects: ТАДЖИКИСТАН
КИТАЙ
КИТАЙСКИЙ ЯЗЫК
ИНСТИТУТ КОНФУЦИЯ
ДОБРОСОСЕДСТВО

description: Статья посвящена состоянию и перспективам таджикско-китайского сотрудничества в сфере образования. Отмечается большое значение изучения китайского языка языка великого соседа Республики Таджикистан (РТ), который выступает не только средством общения, инструментом экономических и культурно-гуманитарных связей, но и носителем духовных ценностей, накопленных за всю историю китайской цивилизации. На базе конкретных примеров и статистических данных сделан вывод о том, что создание в Таджикистане дополнительных условий и возможностей для изучения китайского языка будет способствовать укреплению добрососедства, дружбы и сотрудничества между РТ и КНР.
Magnetic structure of the Eu2+ moments in superconducting EuFe2(As1-xPx)2 with x = 0.19
Creators: name: Nandi, S.
name: Jin, W. T.
name: Xiao, Y.
name: Su, Y.
name: Price, S.
name: Schmidt, W.
name: Schmalzl, K.
name: Chatterji, T.
name: Jeevan, H. S.
name: Gegenwart, P.
name: Brückel, Th.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic structure of the Eu2+ moments in the superconducting EuFe2(As1-xPx)2 sample with x = 0.19 has been determined using neutron scattering. We conclude that the Eu2+ moments are aligned along the c direction below T_C = 19.0(1) K with an ordered moment of 6.6(2) mu_B in the superconducting state. An impurity phase similar to the underdoped phase exists within the bulk sample which orders antiferromagnetically below T_N = 17.0(2) K. We found no indication of iron magnetic order, nor any incommensurate magnetic order of the Eu2+ moments in the sample.
description: Accepted for publication in Phys. Rev. B (regular article)
Functional Neuroimaging of Social and Nonsocial Cognitive Control in Autism
Creators: name: Turner-Brown, Lauren
name: Sabatino, Antoinette
name: Rittenberg, Alison
name: Dichter, Gabriel S.
name: Bodfish, James W.
name: Sasson, Noah J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: This study investigated cognitive control of social and nonsocial information in autism using functional magnetic resonance imaging. Individuals with autism spectrum disorders (ASDs) and a neurotypical control group completed an oddball target detection task where target stimuli were either faces or nonsocial objects previously shown to be related to circumscribed interests in autism. The ASD group demonstrated relatively increased activation to social targets in right insular cortex and in left superior frontal gyrus and relatively decreased activation to nonsocial targets related to circumscribed interests in multiple frontostriatal brain regions. Findings suggest that frontostriatal recruitment during cognitive control in ASD is contingent on stimulus type, with increased activation for social stimuli and decreased activation for nonsocial stimuli related to circumscribed interests.
A Twin Study of Heritable and Shared Environmental Contributions to Autism
Creators: name: Frazier, Thomas W.
name: Eng, Charis
name: Morris, Nathan
name: Youngstrom, Eric A.
name: Hardan, Antonio Y.
name: Thompson, Lee
name: Law, Paul
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The present study examined genetic and shared environment contributions to quantitatively-measured autism symptoms and categorically-defined ASD. Participants included 568 twins from the Interactive Autism Network. Autism symptoms were obtained using the Social Communication Questionnaire and Social Responsiveness Scale. Categorically-defined ASD was based on clinical diagnoses. DeFries-Fulker and liability threshold models examined etiologic influences. Very high heritability was observed for extreme autism symptom levels (h2g=.92-1.20). Extreme levels of social and repetitive behavior symptoms were strongly influenced by common genetic factors. Heritability of categorically-defined ASD diagnosis was comparatively low (.21, 95% CI=0.15-0.28). High heritability of extreme autism symptom levels confirms previous observations of strong genetic influences on autism. Future studies will require large, carefully ascertained family pedigrees and quantitative symptom measurements.
Growth Competitions on Spherically Symmetric Riemannian Manifolds
Creators: name: Assouline, Rotem
Publisher: name: arXiv
Year: 2021
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We propose a model for a growth competition between two subsets of a Riemannian manifold. The sets grow at two different rates, avoiding each other. It is shown that if the competition takes place on a surface which is rotationally symmetric about the starting point of the slower set, then if the surface is conformally equivalent to the Euclidean plane, the slower set remains in a bounded region, while if the surface is nonpositively curved and conformally equivalent to the hyperbolic plane, both sets may keep growing indefinitely.
description: 10 pages, 3 figures; v2: Added references. v3: Minor changes in introduction and section 2
Multicolored Isomorphic Spanning Trees in Complete Graphs
Creators: name: Fu, Hung-Lin
name: Lo, Yuan-Hsun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we first prove that if the edges of $K_{2m}$ are properly colored by $2m-1$ colors in such a way that any two colors induce a 2-factor of which each component is a 4-cycle, then $K_{2m}$ can be decomposed into $m$ isomorphic multicolored spanning trees. Consequently, we show that there exist three disjoint isomorphic multicolored spanning trees in any properly (2$m-$1)-edge-colored $K_{2m}$ for $m\geq 14$.
description: 10 pages, 6 figures. This paper has been accepted for publication in Ars Combinatoria
Brief Report: Diminishing Geographic Variability in Autism Spectrum Disorders Over Time?
Creators: name: Vieira, Veronica M.
name: Daniels, Julie L.
name: Hoffman, Kate
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We investigated differences in the geographic distribution of autism spectrum disorders (ASD) over time in central North Carolina with data from the Autism and Developmental Disabilities Monitoring (ADDM) Network. Using generalized additive models and geographic information systems we produced maps of ASD risk in 2002–2004 and 2006–2008. Overall the risk of ASD increased 52.9% from 2002–2004 to 2006–2008. However, the magnitude of change in risk was not uniform across the study area; while some areas experienced dramatic increases in ASD risk (>400%), others experienced slight decreases. Generally, areas with the lowest risk in 2002–2004 experienced the greatest increases over time. Education and outreach efforts in North Carolina expanded during this period, possibly contributing to the observed leveling of risk over time.
Learning to Simulate Daily Activities via Modeling Dynamic Human Needs
Creators: name: Yuan, Yuan
name: Wang, Huandong
name: Ding, Jingtao
name: Jin, Depeng
name: Li, Yong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Daily activity data that records individuals' various types of activities in daily life are widely used in many applications such as activity scheduling, activity recommendation, and policymaking. Though with high value, its accessibility is limited due to high collection costs and potential privacy issues. Therefore, simulating human activities to produce massive high-quality data is of great importance to benefit practical applications. However, existing solutions, including rule-based methods with simplified assumptions of human behavior and data-driven methods directly fitting real-world data, both cannot fully qualify for matching reality. In this paper, motivated by the classic psychological theory, Maslow's need theory describing human motivation, we propose a knowledge-driven simulation framework based on generative adversarial imitation learning. To enhance the fidelity and utility of the generated activity data, our core idea is to model the evolution of human needs as the underlying mechanism that drives activity generation in the simulation model. Specifically, this is achieved by a hierarchical model structure that disentangles different need levels, and the use of neural stochastic differential equations that successfully captures piecewise-continuous characteristics of need dynamics. Extensive experiments demonstrate that our framework outperforms the state-of-the-art baselines in terms of data fidelity and utility. Besides, we present the insightful interpretability of the need modeling. The code is available at https://github.com/tsinghua-fib-lab/SAND.
description: Accepted by WWW 2023
Dynamical facilitation governs glassy dynamics in suspensions of colloidal ellipsoids
Creators: name: Mishra, Chandan K.
name: Nagamanasa, K. Hima
name: Ganapathy, Rajesh
name: Sood, A. K.
name: Gokhale, Shreyas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: One of the greatest challenges in contemporary condensed matter physics is to ascertain whether the formation of glasses from liquids is fundamentally thermodynamic or dynamic in origin. While the thermodynamic paradigm has dominated theoretical research for decades, the purely kinetic perspective of the dynamical facilitation (DF) theory has attained prominence in recent times. In particular, recent experiments and simulations have highlighted the importance of facilitation using simple model systems composed of spherical particles. However, an overwhelming majority of liquids possess anisotropy in particle shape and interactions and it is therefore imperative to examine facilitation in complex glass-formers. Here, we apply the DF theory to systems with orientational degrees of freedom as well as anisotropic attractive interactions. By analyzing data from experiments on colloidal ellipsoids, we show that facilitation plays a pivotal role in translational as well as orientational relaxation. Further, we demonstrate that the introduction of attractive interactions leads to spatial decoupling of translational and rotational facilitation, which subsequently results in the decoupling of dynamical heterogeneities. Most strikingly, the DF theory can predict the existence of reentrant glass transitions based on the statistics of localized dynamical events, called excitations, whose duration is substantially smaller than the structural relaxation time. Our findings pave the way for systematically testing the DF approach in complex glass-formers and also establish the significance of facilitation in governing structural relaxation in supercooled liquids.
description: 22 pages, 3 main figues, 3 supplementary figures. Submitted to Proceedings of the National Academy of Sciences, USA, on the 15th of July, 2014
BOSHLANG'ICH SINFLARDA MATEMATIKA O'QITISHNING INTERFAOL METODLARI.
Creators: name: Abdusattorova, Dilnuraxon
Publisher: name: Zenodo
Year: 2023

description: Mаmlаkаtimizdа bоshlаng'ich sinflаrdа mаtеmаtikа o'qitish umumаn mаktаb mаtеmаtikа kursini o'zlаshtirishning dаstlаbki bоsqichi sifаtidа qаrаlаdi. Shu sаbаbli bоshlаng'ich sinflаrdа ishlаshdа o'rtа mаktаbdа mаtеmаtikа o'qitishdа ko'zdа tutilаdigаn umumiy mаsаlаlаrni hisоbgа оlish vа bu mаsаlаlаrni hаl etishdа bоshlаng'ich tа'limning аhаmiyatini to'g'ri bаhоlаsh kеrаk. Maqolada matematika o'qitishning  interfaol  metodlari haqida  so'z  yuritiladi.
National Survey of Sensory Features in Children with ASD: Factor Structure of the Sensory Experience Questionnaire (3.0)
Creators: name: Little, Lauren M.
name: Bulluck, John
name: Sideris, John
name: Furlong, Melissa
name: Baranek, Grace T.
name: Ausderau, Karla
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Abstract This national online survey study characterized sensory features in 1,307 children with autism spectrum disorder (ASD) ages 2–12 years using the Sensory Experiences Questionnaire Version 3.0 (SEQ-3.0). Using the SEQ-3.0, a confirmatory factor analytic model with four substantive factors of hypothesized sensory response patterns (i.e., hyporesponsiveness; hyperresponsiveness; sensory interests, repetitions and seeking behaviors; enhanced perception), five method factors of sensory modalities (i.e., auditory, visual, tactile, gustatory/olfactory, vestibular/proprioceptive), and one of social context were tested with good model fit. Child and family characteristics associated with the sensory response patterns were explored. The effect of sensory response patterns on autism severity was tested, controlling for key child and family characteristics. The SEQ-3.0 demonstrates an empirically valid factor structure specific to ASD that considers sensory response patterns, modalities, and social context.
Properties of Long Gamma Ray Burst Progenitors in Cosmological Simulations
Creators: name: Bignone, L. A.
name: Pellizza, L. J.
name: Tissera, P. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the nature of long gamma ray burst (LGRB) progenitors using cosmological simulations of structure formation and galactic evolution. LGRBs are potentially excellent tracers of stellar evolution in the early universe. We developed a Monte Carlo numerical code which generates LGRBs coupled to cosmological simulations. The simulations allows us to follow the ormation of galaxies self-consistently. We model the detectability of LGRBs and their host galaxies in order to compare results with observational data obtained by high-energy satellites. Our code also includes stochastic effects in the observed rate of LGRBs.
description: To appear in the 56th Bulletin of the Argentine Astronomical Society (BAAA 56, 2013). 4 pages
Quantifying Narrative Ability in Autism Spectrum Disorder: A Computational Linguistic Analysis of Narrative Coherence
Creators: name: Losh, Molly
name: Gordon, Peter C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Autism Spectrum Disorder (ASD) is characterized by difficulties with social communication and functioning, and ritualistic/repetitive behaviors (American Psychiatric Association, 2013). While substantial heterogeneity exists in symptom expression, impairments in language discourse skills, including narrative, are universally observed (Tager-Flusberg, Paul, & Lord, 2005). This study applied a computational linguistic tool, Latent Semantic Analysis (LSA), to objectively characterize narrative performance in ASD across two narrative contexts differing in interpersonal and cognitive demands. Results indicated that individuals with ASD produced narratives comparable in semantic content to those from controls when narrating from a picture book, but produced narratives diminished in semantic quality in a more demanding narrative recall task. Results are discussed in terms of the utility of LSA as a quantitative, objective, and efficient measure of narrative ability.
Multiverse Predictions for Habitability: Element Abundances
Creators: name: Sandora, McCullen
name: Airapetian, Vladimir
name: Barnes, Luke
name: Lewis, Geraint F.
name: Pérez-Rodríguez, Ileana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the dependence of elemental abundances on physical constants, and the implications this has for the distribution of complex life for various proposed habitability criteria. We consider three main sources of abundance variation: differing supernova rates, alpha burning in massive stars, and isotopic stability, and how each affects the metal-to-rock ratio and the abundances of carbon, oxygen, nitrogen, phosphorus, sulfur, silicon, magnesium, and iron. Our analysis leads to several predictions for which habitability criteria are correct by determining which ones make our observations of the physical constants, as well as a few other observed features of our universe, most likely. Our results indicate that carbon-rich or carbon-poor planets are uninhabitable, slightly magnesium-rich planets are habitable, and life does not depend on nitrogen abundance too sensitively. We also find suggestive but inconclusive evidence that metal-rich planets and phosphorus-poor planets are habitable. These predictions can then be checked by probing regions of our universe that closely resemble normal environments in other universes. If any of these predictions are found to be wrong, the multiverse scenario would predict that the majority of observers are born in universes differing substantially from ours, and so can be ruled out, to varying degrees of statistical significance.
description: 27 pages, 5 figures
Lagrangian based heat conduction
Creators: name: Márkus, Ferenc
name: Szegleti, András
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Based on the Lagrangian description of the dissipative oscillator, the Hamiltonian description of Fourier heat conduction is treated here. The method enables us to calculate the solution of thermal propagation involving the Maxwell-Cattaneo-Vernotte (MCV) telegrapher type also, in which both the initial and the boundary conditions are taken into account. The presented study offers a new kind of solution to certain partial differential equations.
'The Taurus': Cattle Breeds & Diseases Identification Mobile Application using Machine Learning
Creators: name: Chandrarathna, R. M. D. S. M.
name: Weerasinghe, T. W. M. S. A.
name: Madhuranga, N. S.
name: Thennakoon, T. M. L. S.
name: Gamage, Anjalie
name: Lakmali, Erandika
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Dairy farming plays an important role in agriculture for thousands of years not only in Sri Lanka but also in so many other countries. When it comes to dairy farming cattle is an indispensable animal. According to the literature surveys almost 3.9 million cattle and calves die in a year due to different types of diseases. The causes of diseases are mainly bacteria, parasites, fungi, chemical poisons and etc. Infectious diseases can be a greatest threat to livestock health. The mortality rate of cattle causes a huge impact on social, economic and environmental damage. In order to decrease this negative impact, the proposal implements a cross-platform mobile application to easily analyze and identify the diseases which cattle suffer from and give them a solution and also to identify the cattle breeds. The mobile application is designed to identify the breeds by analyzing the images of the cattle and identify diseases after analyzing the videos and the images of affected areas. Then make a model to identify the weight and the age of a particular cow and suggest the best dose of the medicine to the identified disease. This will be a huge advantage to farmers as well as to dairy industry. The name of the proposed mobile application is 'The Taurus' and this paper address the selected machine learning and image processing models and the approaches taken to identify the diseases, breeds and suggest the prevention methods and medicine to the identified disease.
Identification of Dynamic functional brain network states Through Tensor Decomposition
Creators: name: Mahyari, Arash Golibagh
name: Aviyente, Selin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: With the advances in high resolution neuroimaging, there has been a growing interest in the detection of functional brain connectivity. Complex network theory has been proposed as an attractive mathematical representation of functional brain networks. However, most of the current studies of functional brain networks have focused on the computation of graph theoretic indices for static networks, i.e. long-time averages of connectivity networks. It is well-known that functional connectivity is a dynamic process and the construction and reorganization of the networks is key to understanding human cognition. Therefore, there is a growing need to track dynamic functional brain networks and identify time intervals over which the network is quasi-stationary. In this paper, we present a tensor decomposition based method to identify temporally invariant 'network states' and find a common topographic representation for each state. The proposed methods are applied to electroencephalogram (EEG) data during the study of error-related negativity (ERN).
description: 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
The Impact of Parent-Delivered Intervention on Parents of Very Young Children with Autism
Creators: name: Estes, Annette
name: Fitzpatrick, Annette
name: Munson, Jeffrey
name: Mercado, Carla
name: Vismara, Laurie
name: Winter, Jamie
name: Greenson, Jessica
name: Young, Gregory
name: Lord, Catherine
name: Rogers, Sally
name: Dawson, Geraldine
name: Elder, Lauren
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: This study investigated the impact of a parent-coaching intervention based on the Early Start Denver Model (P-ESDM) on parenting-related stress and sense of competence. This was part of a multisite, randomized trial comparing P-ESDM (n=49) with community intervention (n=49) for children aged 12 and 24 months. The P-ESDM group reported no increase in parenting stress, whereas the Community group experienced an increase over the same 3-month period. Parental sense of competence did not differ. Number of negative life events was a significant predictor of parenting stress and sense of competence across both groups. This suggests that a parent-coaching intervention may help maintain parental adjustment directly after a child is diagnosed with ASD.
Free-by-cyclic groups, automorphisms and actions on nearly canonical trees
Creators: name: Andrew, Naomi
name: Martino, Armando
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E36 (Primary), 20E08, 20E05 (Secondary)

description: We study the automorphism groups of free-by-cyclic groups and show these are finitely generated in the following cases: (i) when defining automorphism has linear growth and (ii) when the rank of the underlying free group has rank at most 3. The techniques we use are actions on trees, including the trees of cylinders due to Guirardel and Levitt, the relative hyperbolicity of free-by-cyclic groups (due to Gautero and Lustig, Ghosh, and Dahmani and Li) and the filtration of the automorphisms of a group preserving a tree, following Bass and Jiang, and Levitt. Our general strategy is to produce an invariant tree for the group and study that, usually reducing the initial problem to some sort of McCool problem (the study of an automorphism group fixing some collection of conjugacy classes of subgroups) for a group of lower complexity. The obstruction to pushing these techniques further, inductively, is in finding a suitable invariant tree and in showing that the relevant McCool groups are finitely generated.
description: 40 pages, 1 figure; this is the version accepted for publication: changes include a new Example 3.2.2, strengthening Proposition 5.4.2, and filling a gap in the proof of Proposition 6.3.1
The Role of Supported Joint Engagement and Parent Utterances in Language and Social Communication Development in Children with Autism Spectrum Disorder
Creators: name: Yoder, Paul J.
name: Bottema-Beutel, Kristen
name: Hochman, Julia M.
name: Watson, Linda R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: This study examined associations between three parent–child engagement states and social communication, expressive language, and receptive language at 8 month follow-up, in 63 preschool-age children with autism spectrum disorder. We extend the literature on supported joint engagement by dividing this state into higher order (HSJE) and lower order types, with HSJE involving greater reciprocity in toy play. We also examined parents’ follow-in utterances that co-occurred with each state. We found that only HSJE predicts later social communication and expressive language, while object engagement predicts receptive language. HSJE combined with follow-in utterances (HSJE+FI) predicts all three outcomes when controlling for HSJE+FI in other engagement states. When controlling for total HSJE, HSJE+FI is predictive of receptive language.
Synthesis and post-annealing effects of alkaline-metal-ethylenediamine-intercalated superconductors Ax(C2H8N2)yFe2-zSe2 (A = Li, Na) with Tc = 45 K
Creators: name: Noji, Takashi
name: Hatakeda, Takehiro
name: Hosono, Shohei
name: Kawamata, Takayuki
name: Kato, Masatsune
name: Koike, Yoji
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: New iron-based intercalation superconductors Ax(C2H8N2)yFe2-zSe2 (A = Li, Na) with Tc = 45 K have successfully been synthesized via intercalation of dissolved alkaline metal in ethylenediamine. The c-axis lengths of Ax(C2H8N2)yFe2-zSe2 (A = Li, Na) are 20.74(7) Å and 21.9(1) Å, respectively, and are about 50 % larger than that of KxFe2Se2, indicating that not only alkaline metal but also ethylenediamine is intercalated between the Se-Se layers of FeSe. It seems that the high-Tc of Ax(C2H8N2)yFe2-zSe2 (A = Li, Na) is caused by the possible two-dimensional electronic structure due to the large c-axis length. Through the post-annealing in an evacuated glass tube, it has been found that Tc decreases with increasing post-annealing temperature and that deintercalation of EDA from the as-intercalated sample takes place at low temperatures below 250 °C.
description: 7 pages, 6 figures
Real-time thermoacoustic data assimilation
Creators: name: Nóvoa, Andrea
name: Magri, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Low-order thermoacoustic models are qualitatively correct, but they are typically quantitatively inaccurate. We propose a time-domain bias-aware method to make qualitatively low--order models quantitatively (more) accurate. First, we develop a Bayesian ensemble data assimilation method for a low-order model to self-adapt and self-correct any time that reference data becomes available. Second, we apply the methodology to infer the thermoacoustic states and heat release parameters on the fly without storing data (real-time). We perform twin experiments using synthetic acoustic pressure measurements to analyse the performance of data assimilation in all nonlinear thermoacoustic regimes, from limit cycles to chaos, and interpret the results physically. Third, we propose practical rules for thermoacoustic data assimilation. An increase, reject, inflate strategy is proposed to deal with the rich nonlinear behaviour; and physical time scales for assimilation are proposed in non-chaotic regimes (with the Nyquist-Shannon criterion) and in chaotic regimes (with the Lyapunov time). Fourth, we perform data assimilation using data from a higher-fidelity model. We introduce an echo state network to estimate in real-time the forecast bias, which is the model error of the low-fidelity model. We show that (i) the correct acoustic pressure, parameters, and model bias can be accurately inferred; (ii) the learning is robust as it can tackle large uncertainties in the observations (up to 50% the mean values); (iii) the uncertainty of the prediction and parameters is naturally part of the output; and (iv) both the time-accurate solution and statistics can be successfully inferred. Data assimilation opens up new possibility for real-time prediction of thermoacoustics by synergistically combining physical knowledge and experimental data.
description: 49 pages, 26 figures
Vocal Patterns in Infants with Autism Spectrum Disorder: Canonical Babbling Status and Vocalization Frequency
Creators: name: Labban, Jeffrey D.
name: Watson, Linda R.
name: Oller, D. Kimbrough
name: Baranek, Grace T.
name: Patten, Elena
name: Belardi, Katie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Canonical babbling is a critical milestone for speech development and is usually well in place by 10 months. The possibility that infants with ASD show late onset of canonical babbling has so far eluded evaluation. Rate of vocalization or “volubility” has also been suggested as possibly aberrant in infants with ASD. We conducted a retrospective video study examining vocalizations of 37 infants at 9–12 and 15–18 months. Twenty-three of the 37 infants were later diagnosed with ASD and indeed produced low rates of canonical babbling and low volubility by comparison with the 14 typically developing infants. The study thus supports suggestions that very early vocal patterns may prove to be a useful component of early screening and diagnosis of ASD.
Explicitly Solvable Systems of First-order Ordinary Differential Equations with Polynomial Right-hand Sides, and Their Periodic Variants
Creators: name: Calogero, Francesco
name: Payandeh, Farrin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this Letter we identify special systems of (an arbitrary number) N of first-order Ordinary Differential Equations with homogeneous polynomials of arbitrary degree M on their right-hand sides, which feature very simple explicit solutions; as well as variants of these systems--with right-hand sides no more homogeneous--which feature periodic solutions. A novelty of these findings is to consider special systems characterized by constraints involving both their parameters and their initial data.
description: 4 pages
Attenuated Auditory Event-Related Potentials and Associations with Atypical Sensory Response Patterns in Children with Autism
Creators: name: Evans, Anna M.
name: Cleary, Katherine M.
name: Bulluck, John C.
name: Baranek, Grace T.
name: Donkers, Franc C. L.
name: Belger, Aysenil
name: Willoughby, Michael T.
name: Schipul, Sarah E.
name: Lovmo, Jeanne E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Neurobiological underpinnings of unusual sensory features in individuals with autism are unknown. Event-related potentials (ERPs) elicited by task-irrelevant sounds were used to elucidate neural correlates of auditory processing and associations with three common sensory response patterns (hyperresponsiveness; hyporesponsiveness; sensory seeking). Twenty-eight children with autism and 39 typically developing children (4–12 year-olds) completed an auditory oddball paradigm. Results revealed marginally attenuated P1 and N2 to standard tones and attenuated P3a to novel sounds in autism versus controls. Exploratory analyses suggested that within the autism group, attenuated N2 and P3a amplitudes were associated with greater sensory seeking behaviors for specific ranges of P1 responses. Findings suggest that attenuated early sensory as well as later attention-orienting neural responses to stimuli may underlie selective sensory features via complex mechanisms.
Confirmation of a cluster of galaxies hidden behind the Galactic bulge using the VVV Survey
Creators: name: Coldwell, Georgina
name: Alonso, Sol
name: Duplancic, Fernanda
name: Hempel, Maren
name: Ivanov, Valentin D.
name: Minniti, Dante
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Suzaku and Chandra X-ray observations detected a new cluster of galaxies, Suzaku J1759-3450, at a redshift z=0.13. It is located behind the Milky Way, and the high Galactic dust extinction renders it nearly invisible at optical wavelengths. We attempt here to confirm the galaxy cluster with near-infrared imaging observations, and to characterize its central member galaxies. Images from the VVV survey were used to detect candidate member galaxies of Suzaku J1759-3450 within the central region of the cluster, up to 350 kpc from the X-ray peak emission. Color-magnitude and color-color diagrams and morphology criteria allowed us to select the galaxies among the numerous foreground sources. Fifteen candidate cluster members were found very close to a modeled red-sequence at the redshift of the cluster. Five members are extremely bright, and one is possibly a cD galaxy. The asymmetry in the spatial distribution of the galaxies respect to the X-ray peak emission is an indicator of that this cluster is still suffering a virialization process. Our investigation of Suzaku J1759-3450 demonstrates the potential of the VVV Survey to study the hidden population of galaxies in the Zone of Avoidance.
description: 7 pages, 5 figures. Accepted for Publication in Astronomy & Astrophysics
Арктическая активизация Китая: взгляд из Скандинавии
Creators: name: Криворотов Андрей Константинович
Publisher: name: Китай в мировой и региональной политике. История и современность
Year: 2013
Subjects: КИТАЙ
СЕВЕРНАЯ ЕВРОПА
АРКТИКА
ИНВЕСТИЦИИ
АРКТИЧЕСКИЙ СОВЕТ
СЕВМОРПУТЬ
УГРОЗЫ

description: В статье анализируются процессы многопланового проникновения финансово крепких научных и коммерческих структур КНР в скандинавское Заполярье. Автор отмечает резкое оживление межгосударственного диалога Китая со странами Скандинавии (особенно с Исландией и Данией/Гренландией), главной целью которого является получение КНР статуса постоянного наблюдателя в Арктическом совете. В работе приводится мнение скандинавских политиков и экспертов, полагающих, что Китаем движут в основном экономические мотивы, но в то же время затрудняющихся давать более рельефные прогнозы. Автор приходит к выводу, что диалог с Китаем, с одной стороны, повышает значимость стран региона для их традиционных союзников по НАТО, но с другой несет в себе риски вовлечения Скандинавии (а заодно и России как страны-транзитера по Севморпути) в новую сферу глобального противоборства КНР с США.
V4142 Sgr: a Double Periodic Variable with an accretor surrounded by the accretion-disk's atmosphere
Creators: name: Rosales, J. A.
name: Mennickent, R. E.
name: Djurašević, G.
name: Araya, I.
name: Curé, M.
name: Schleicher, D. R. G.
name: Petrović, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: A detailed study of the close interacting binary V4142\,Sgr based on photometric and spectroscopic analysis is presented.This system belongs to the enigmatic class of Algol-like variables showing a long photometric cycle of unknown nature. Aims: Performing photometric data-mining and spectroscopic observations covering the orbital cycle, we obtain the orbital parameters and the stellar properties of the binary system, along with the physical properties of the accretion disk located around the hot star. Insights on the evolutive path of the system are obtained. Methods: The light curve was modeled through an inverse modeling method using a theoretical light curve of the binary system, considering the light curve contribution of both stars and the accretion disk of the hot star to obtain the fundamental parameters. To constrain the main stellar parameters the mass ratio was fixed, as well as the donor temperature using the obtained values from our spectroscopic analysis including deblending methods to isolate the spectral lines of the stellar components. The system parameters were compared with a grid of binary star evolutive models in order to get insights on the evolutionary history of the system. Results: The orbital period and the long cycle were re-calculated and found to be of $30.633 \pm 0.002 ~\mathrm{days}$ and $1201 \pm 14 ~\mathrm{days}$. The spectral analysis reveals H$α$ double emission with a persistent $V \leq R$ asymmetry which is considered evidence of a possible wind emergin from the hotspot region...
Autism Spectrum Disorder Symptoms Among Children Enrolled in the Study to Explore Early Development (SEED)
Creators: name: Giarelli, Ellen
name: Rice, Catherine
name: Young, Lisa
name: DiGuiseppi, Carolyn
name: Schieve, Laura
name: Wiggins, Lisa D.
name: Schendel, Diana
name: Daniels, Julie
name: Pinto-Martin, Jennifer
name: Thompson, Patrick
name: Blaskey, Lisa
name: Reynolds, Ann
name: Yeargin-Allsopp, Marshalyn
name: Rosenberg, Cordelia Robinson
name: Levy, Susan E.
name: Croen, Lisa A.
name: Lee, Li-Ching
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This study examined the phenotypic profiles of children aged 30–68 months in the Study to Explore Early Development (SEED). Children classified as autism spectrum disorder (ASD), developmental delay (DD) with ASD symptoms, DD without ASD symptoms, and population comparison (POP) differed significantly from each other on cognitive, adaptive, behavioral, and social functioning and the presence of parent-reported conditions. Children with ASD and DD with ASD symptoms had mild to severe ASD risk on several measures compared to children with other DD and POP who had little ASD risk across measures. We conclude that children in SEED have varying degrees of ASD impairment and associated deficits. SEED thus provides a valuable sample to explore ASD phenotypes and inform risk factor analyses.
Violations of entropic Bell inequalities with coarse-grained quadrature measurements for continuous-variable states
Creators: name: Chen, Zeng-Bing
name: Fu, Yao
name: Zhao, Yu-Kang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is a long-standing belief, as pointed out by Bell in 1986, that it is impossible to use a two-mode Gaussian state possessing a positive-definite Wigner function to demonstrate nonlocality as the Wigner function itself provides a local hidden-variable model. In particular, when one performs continuous-variable (CV) quadrature measurements upon a routinely generated CV entanglement, namely, the two-mode squeezed vacuum (TMSV) state, the resulting Wigner function is positive-definite and as such, the TMSV state cannot violate any Bell inequality using CV quadrature measurements. We show here, however, that a Bell inequality for CV states in terms of entropies can be quantum mechanically violated by the TMSV state with two coarse-grained quadrature measurements per site within experimentally accessible parameter regime. The proposed CV entropic Bell inequality is advantageous for an experimental test, especially for a possible loophole-free test of nonlocality, as the quadrature measurements can be implemented with homodyne detections of nearly 100\% detection efficiency under current technology.
The More the Poorer? Resource Sharing and Scale Economies in Large Families
Creators: name: Calvi, Rossella
name: Penglase, Jacob
name: Tommasi, Denni
name: Wolf, Alexander
Publisher: name: Monash University
Year: 2022
Subjects: Econometric and statistical methods
Econometrics not elsewhere classified

description: The structure of a family may have important consequences for the material well-being of its members. For example, in large families, an individual must share resources with many others, but she may benefit from economies of scale in consumption. In this paper, we study individual consumption in different types of households, with a focus on family structures that are common in developing countries. Based on a collective household model, we develop a new methodology to identify the intra-household allocation of resources and the extent of consumption sharing. We apply our methodology using data from Bangladesh and Mexico, and use the model estimates to compute poverty rates for men, women, and children. Contrary to existing poverty calculations that ignore either intra-household inequality or economies of scale in consumption, ours take into account both dimensions.
Existence of pearled patterns in the planar Functionalized Cahn-Hilliard equation
Creators: name: Promislow, Keith
name: Wu, Qiliang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The functionalized Cahn-Hilliard (FCH) equation supports planar and circular bilayer interfaces as equilibria which may lose their stability through the pearling bifurcation: a periodic, high-frequency, in-plane modulation of the bilayer thickness. In two spatial dimensions we employ spatial dynamics and a center manifold reduction to reduce the FCH equation to an 8th order ODE system. A normal form analysis and a fixed-point-theorem argument show that the reduced system admits a degenerate 1:1 resonant normal form, from which we deduce that the onset of the pearling bifurcation coincides with the creation of a two-parameter family of pearled equilibria which are periodic in the in-plane direction and exponentially localized in the transverse direction.
description: 40 pages, 4 figures; key words: functionalized Cahn-Hilliard, pearled bilayer, spatial dynamics, normal form, singular perturbation
Does Gender Moderate Core Deficits in ASD? An Investigation into Restricted and Repetitive Behaviors in Girls and Boys with ASD
Creators: name: Gulsrud, Amanda
name: Harrop, Clare
name: Kasari, Connie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Due to the uneven gender ratio of autism spectrum disorders (ASD), girls are rarely studied independently from boys. Research focusing on Restricted and Repetitive Behaviors (RRBs) indicates that above the age of six girls have fewer and/or different RRBs than boys with ASD. In this study we investigated whether girls and boys with ASD demonstrated similar rates and types of RRBs in early childhood, using discrete observational coding from a video-taped play interaction. Twenty-nine girls with ASD were matched to 29 boys based on ASD severity. While boys in our sample demonstrated a greater frequency of RRBs, this was not significant and our findings indicate that girls and boys under five are more similar than dissimilar on this core deficit. However our data also revealed a trend toward gender-differential growth trajectories – a finding worthy of further investigation in larger samples.
Sedition Hunters: A Quantitative Study of the Crowdsourced Investigation into the 2021 U.S. Capitol Attack
Creators: name: Yu, Tianjiao
name: Venkatagiri, Sukrit
name: Lourentzou, Ismini
name: Luther, Kurt
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Social media platforms have enabled extremists to organize violent events, such as the 2021 U.S. Capitol Attack. Simultaneously, these platforms enable professional investigators and amateur sleuths to collaboratively collect and identify imagery of suspects with the goal of holding them accountable for their actions. Through a case study of Sedition Hunters, a Twitter community whose goal is to identify individuals who participated in the 2021 U.S. Capitol Attack, we explore what are the main topics or targets of the community, who participates in the community, and how. Using topic modeling, we find that information sharing is the main focus of the community. We also note an increase in awareness of privacy concerns. Furthermore, using social network analysis, we show how some participants played important roles in the community. Finally, we discuss implications for the content and structure of online crowdsourced investigations.
description: This work is accepted by The ACM WebConf (WWW 2023)