cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Structural and Photometric Properties of the Andromeda Satellite Dwarf Galaxy Lacerta I from Deep Imaging with WIYN pODI
Creators: name: Rhode, Katherine L.
name: Crnojevic, Denija
name: Sand, David J.
name: Janowiecki, Steven
name: Young, Michael D.
name: Spekkens, Kristine
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from WIYN pODI imaging of Lacerta I (And XXXI), a satellite dwarf galaxy discovered in the outskirts of the Andromeda galaxy (M31) in Pan-STARRS1 survey data. Our deep, wide-field $g,i$ photometry reaches $\sim$3 magnitudes fainter than the photometry in the Pan-STARRS1 discovery paper and allows us to trace the stellar population of Lac I beyond two half-light radii from the galaxy center. We measure a Tip of the Red Giant Branch (TRGB) distance for Lac I of $(m-M)_0=24.44\pm0.11$ mag (773$\pm$40 kpc, or 264$\pm$6 kpc from M31), which is consistent with the Pan-STARRS1 distance. We use a maximum-likelihood technique to derive structural properties for the galaxy, and find a half-light radius ($r_h$) of 3.24$\pm$0.21 arcmin (728$\pm$47 pc), ellipticity ($ε$) of 0.44$\pm$0.03, total magnitude $M_V$ $=$ $-$11.4$\pm$0.3, and central surface brightness $μ_{V,0}$ $=$ 24.8$\pm$0.3 mag arcsec$^{-2}$. We find no HI emission in archival data and set a limit on Lac I's neutral gas mass-to-light ratio of $M_{HI}/L_V$ $
description: Accepted for publication in The Astrophysical Journal
Multiple Fault Attack on PRESENT with a Hardware Trojan Implementation in FPGA
Creators: name: Breier, Jakub
name: He, Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Internet of Things connects lots of small constrained devices to the Internet. As in any other environment, communication security is important and cryptographic algorithms are one of many elements that we use in order to keep messages secure. Because of the constrained nature of these environments, it is necessary to use algorithms that do not require high computational power. Lightweight ciphers are therefore ideal candidates for this purpose. In this paper, we explore a possibility of attacking an ultra-lightweight cipher PRESENT by using a multiple fault attack. Utilizing the Differential Fault Analysis technique, we were able to recover the secret key with two faulty encryptions and an exhaustive search of 2^16 remaining key bits. Our attack aims at four nibbles in the penultimate round of the cipher, causing faulty output in all nibbles of the output. We also provide a practical attack scenario by exploiting Hardware Trojan (HT) technique for the proposed fault injection in a Xilinx Spartan-6 FPGA.
description: 12 pages, 4 figures
Low ionospheric reactions on tropical depressions prior hurricanes
Creators: name: Nina, Aleksandra
name: Radovanović, Milan
name: Milovanović, Boško
name: Kovačević, Andjelka
name: Bajčetić, Jovan
name: Popović, Luka Č.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study the reactions of the low ionosphere during tropical depressions (TDs) which have been detected before the hurricane appearances in the Atlantic Ocean. We explore 41 TD events using very low frequency (VLF) radio signals emitted by NAA transmitter located in the USA and recorded by VLF receiver located in Belgrade (Serbia). We found VLF signal deviations (caused ionospheric turbulence) in the case of 36 out of 41 TD events (88%). Additionally, we explore 27 TDs which have not been developed in hurricanes and found similar low ionospheric reactions. However, in the sample of 41 TDs which are followed by hurricanes the typical low ionosphere perturbations seem to be more frequent than other TDs.
description: accepted in Advances in Space Research
Machine learning analysis of the T cell receptor repertoire identifies sequence features that predict self-reactivity: data analysis plan for validation analyses
Creators: name: Textor, Johannes
name: Buytenhuijs, Franka
name: Wortel, Inge M. N.
name: Mandl, Judith N.
Publisher: name: Zenodo
Year: 2022

description: We recently conducted an exploratory analysis of murine T cell receptor (TCR) repertoire data (biorxiv doi: 10.1101/2022.11.23.517563). Specifically, we analyzed the complement-determining region 3 (CDR3) of the TCRβ chain from naïve CD4+ T cell populations that express high or low levels of the surface marker CD5 (CD5lo and CD5hi cells). This document describes in advance a series of analyses we will conduct on a held-out validation dataset from 10 mice to confirm the hypotheses derived from our exploratory analysis. We are providing this document in the interest of transparency. We are also publishing the exploration and validation datasets and the code used to perform the planned analyses alongside this document.
Wales Institute of Social and Economic Research, Data and Methods: Localities Programme, 2009-2010
WISERD
Creators: name: Rees, G.
Publisher: name: UK Data Service
Year: 2015

description: This is a qualitative data collection. The locality programme undertook research in and across three localities. These were chosen to reflect the diversity of territories, places, scales, and networks in contemporary Wales. The three localities also give contrasting insights into the imagined geographies and area visions of the Wales Spatial Plan. For the practicalities of research, and also due to bounded territories often not corresponding with the ‘fuzzy boundaries’ of the Wales Spatial Plan, ‘core’ towns and cities drove the approach to the empirical research.

 A total of 120 interviews were undertaken with key actors across seven unitary authorities within three localities. Interviews were completed in two tiers:

 • Tier 1: Unitary Authority senior management
 • Tier 2: managers in other bodies with responsibility for service delivery

 The interviews were transcribed by a professional company and the entered and coded in the AtlasTi CAQDAS package. The interviews provide a snapshot of Wales at the time of a major recession, and they document the concerns and prospects of local government and shadow state representatives as they prepared to face an era of public sector austerity.
Confirmation of Large Super-Fast Rotator (144977) 2005 EC127
Creators: name: Chang, Chan-Kao
name: Lin, Hsing-Wen
name: Ip, Wing-Huen
name: Lin, Zhong-Yi
name: Kupfer, Thomas
name: Prince, Thomas A.
name: Ye, Quan-Zhi
name: Laher, Russ R.
name: Lee, Hee-Jae
name: Moon, Hong-Kyu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: (144977) 2005 EC127 is an V-/A-type inner-main-belt asteroid with a diameter of 0.6 +- 0.1 km. Asteroids of this size are believed to have rubble-pile structure, and, therefore, cannot have a rotation period shorter than 2.2 hours. However, our measurements show that asteroid 2005 EC127 completes one rotation in 1.65 +- 0.01 hours with a peak-to-peak light-curve variation of ~0.5 mag. Therefore, this asteroid is identified as a large super-fast rotator. Either a rubble-pile asteroid with a bulk density of ~6 g cm^-3 or an asteroid with an internal cohesion of 47 +- 30 Pa can explain 2005 EC127. However, the scenario of high bulk density is very unlikely for asteroids. To date, only six large super-fast rotators, including 2005 EC127, have been reported, and this number is very small when compared with the much more numerous fast rotators. We also note that none of the six reported large SFRs are classified as C-type asteroids.
description: 20 pages; 4 figures
Fully-resonant, tunable, monolithic frequency conversion as a coherent UVA source
Creators: name: Zielinska, Joanna A.
name: Zukauskas, Andrius
name: Canalias, Carlota
name: Noyan, Mehmet A.
name: Mitchell, Morgan W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a monolithic frequency converter incorporating up to four tuning degrees of freedom, three temperature and one strain, allowing resonance of pump and generated wavelengths simultaneous with optimal phase-matching. With a Rb-doped periodically-poled potassium titanyl phosphate (KTP) implementation, we demonstrate efficient continuous-wave second harmonic generation from 795 nm to 397 nm, with low-power efficiency of 72%/W and high-power slope efficiency of 4.5%. The measured performance shows good agreement with theoretical modeling of the device. We measure optical bistability effects, and show how they can be used to improve the stability of the output against pump frequency and amplitude variations.
description: 10 pages, 7 figures
The HI Chronicles of LITTLE THINGS BCDS III: Gas Clouds in and around Mrk 178, VII Zw 403, AND NGC 3738
Creators: name: Ashley, Trisha
name: Simpson, Caroline E.
name: Elmegreen, Bruce G.
name: Johnson, Megan
name: Pokhrel, Nau Raj
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In most blue compact dwarf (BCD) galaxies, it remains unclear what triggers their bursts of star formation. We study the HI of three relatively isolated BCDs, Mrk 178, VII Zw 403, and NGC 3738, in detail to look for signatures of star formation triggers, such as gas cloud consumption, dwarf-dwarf mergers, and interactions with companions. High angular and velocity resolution atomic hydrogen (H I) data from the Very Large Array (VLA) dwarf galaxy HI survey, Local Irregulars That Trace Luminosity Extremes, The HI Nearby Galaxy Survey (LITTLE THINGS), allows us to study the detailed kinematics and morphologies of the BCDs in HI. We also present high sensitivity HI maps from the NRAO Green Bank Telescope (GBT) of each BCD to search their surrounding regions for extended tenuous emission or companions. The GBT data do not show any distinct galaxies obviously interacting with the BCDs. The VLA data indicate several possible star formation triggers in these BCDs. Mrk 178 likely has a gas cloud impacting the southeast end of its disk or it is experiencing ram pressure stripping. VII Zw 403 has a large gas cloud in its foreground or background that shows evidence of accreting onto the disk. NGC 3738 has several possible explanations for its stellar morphology and H I morphology and kinematics: an advanced merger, strong stellar feedback, or ram pressure stripping. Although apparently isolated, the HI data of all three BCDs indicate that they may be interacting with their environments, which could be triggering their bursts of star formation.
description: 39 pages; accepted for publication in AJ
Policy Enactments in the Secondary School: Theory and Practice, 2009
Creators: name: Braun, A.
name: Ball, S.
Publisher: name: UK Data Service
Year: 2015

description: This is a qualitative data collection. This research project aimed to contribute to critical policy analysis through a qualitative study of multiple education policy enactments in four UK secondary schools. Previous studies have tended to focus on the impact and influence of single-strand policies, in contrast, this study explored the ways in which different policies are simultaneously 'implemented' in schools.

 The schools selected for the case studies were ‘ordinary’ secondary schools, moderately successful with a sound track record of achievement. They were located in four different local authorities and included one school based in inner-London, two schools in outer London and one in a county town. We conducted a series of semi-structured interviews with the head teachers; other senior managers, including the bursars or school managers; a range of classroom teachers (more and less experienced); union representatives and support staff in each of the schools. In total, we conducted interviews with 95 individuals; 86 with in-school personnel and 9 with ‘outsiders’ such as local authority support partners and consultants. As some of the interviews were conducted with pairs of interviewees, we have 86 fully transcribed and anonymised interviews.

 The interviews were tailored to each of the respondents and covered areas such as policy priorities within the school, specific questions on some of the substantive policy areas we were interested in (behaviour, standards and personalised learning) and policy management
The biparametric Fisher-Rényi complexity measure and its application to the multidimensional blackbody radiation
Creators: name: Puertas-Centeno, D.
name: Toranzo, I. V.
name: Dehesa, J. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a biparametric Fisher-Rényi complexity measure for general probability distributions and we discuss its properties. This notion, which is composed of two entropy-like components (the Rényi entropy and the biparametric Fisher information), generalizes the basic Fisher-Shannon measure and the previous complexity quantifiers of Fisher-Rényi type. Then, we illustrate the usefulness of this notion by carrying out a information-theoretical analysis of the spectral energy density of a $d$-dimensional blackbody at temperature $T$. It is shown that the biparametric Fisher-Rényi measure of this quantum system has a universal character in the sense that it does not depend on temperature nor on any physical constant (e.g., Planck constant, speed of light, Boltzmann constant), but only on the space dimensionality $d$. Moreover, it decreases when $d$ is increasing, but exhibits a non trivial behavior for a fixed $d$ and a varying parameter, which somehow brings up a non standard structure of the blackbody $d$-dimensional density distribution.
description: Accepted for publication in Journal of Statistical Mechanics: Theory and Experiment
Contextualization of topics: Browsing through the universe of bibliographic information
Creators: name: Koopman, Rob
name: Wang, Shenghui
name: Scharnhorst, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: This paper describes how semantic indexing can help to generate a contextual overview of topics and visually compare clusters of articles. The method was originally developed for an innovative information exploration tool, called Ariadne, which operates on bibliographic databases with tens of millions of records. In this paper, the method behind Ariadne is further developed and applied to the research question of the special issue "Same data, different results" - the better understanding of topic (re-)construction by different bibliometric approaches. For the case of the Astro dataset of 111,616 articles in astronomy and astrophysics, a new instantiation of the interactive exploring tool, LittleAriadne, has been created. This paper contributes to the overall challenge to delineate and define topics in two different ways. First, we produce two clustering solutions based on vector representations of articles in a lexical space. These vectors are built on semantic indexing of entities associated with those articles. Second, we discuss how LittleAriadne can be used to browse through the network of topical terms, authors, journals, citations and various cluster solutions of the Astro dataset. More specifically, we treat the assignment of an article to the different clustering solutions as an additional element of its bibliographic record. Keeping the principle of semantic indexing on the level of such an extended list of entities of the bibliographic record, LittleAriadne in turn provides a visualization of the context of a specific clustering solution. It also conveys the similarity of article clusters produced by different algorithms, hence representing a complementary approach to other possible means of comparison.
description: Special Issue of Scientometrics: Same data - different results? Towards a comparative approach to the identification of thematic structures in science
Situating Men within Global Care Chains: the Migrant Handyman Phenomenon, 2008-2009
Creators: name: Kilkey, M.
Publisher: name: UK Data Service
Year: 2015

description: This is a qualitative data collection. Research has documented the return of paid domestic labour in the Global North. Studies have shown how it is migrant workers who are supplying much of this domestic labour, and the concept of global care chains has been developed to capture this. The research has tended to focus on how women are situated within these global care chains. This project, however, aims to illuminate and make sense of some of the ways in which men are positioned within the relationship between globalisation, migration and social reproduction. The project will focus on situations in which families buy-in the labour of migrant handymen to undertake traditionally male tasks of social reproduction such as home maintenance and gardening. The project combined quantitative and qualitative research methods. A range of existing data sets was analysed in order to provide a descriptive statistical portrait of the prevalence and characteristics of the migrant handyman phenomenon in the UK. In-depth face-to-face interviews with migrant handymen and labour-using households were conducted in order to explore themes such as why, how and with what consequences households use migrant handymen, and the processes by which migrants come to be inserted in this type of work.
Indirect exchange interaction between magnetic impurities near the helical edge
Creators: name: Kurilovich, V. D.
name: Kurilovich, P. D.
name: Burmistrov, I. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The indirect exchange interaction between magnetic impurities located in the bulk of a two-dimensional topological insulator decays exponentially with the distance. The indirect exchange interaction for magnetic impurities mediated by the helical states at the edge of the topological insulator demonstrates behaviour which is typical for the Ruderman-Kittel-Kasuya-Yosida interaction in a one-dimensional metal. We have shown that interference between the bulk and edge states in the two-dimensional topological insulator results in existence of the unusual contribution to the indirect exchange interaction which, on the one hand, decays exponentially with a distance at the length scale controlled by the Fermi energy of the edge states and, on the other hand, oscillates with distance along the helical edge with the period determined by the Fermi wave length. We found that this interference contribution to the indirect exchange interaction becomes dominant for such configurations of two magnetic impurities when one of them is situated close to the helical edge whereas the other one is located far away in the bulk.
Social games that belugas (Delphinapterus leucas) play
Creators: name: Hill, Heather M. Manitzas
name: Ortiz, Nicole
name: Kolodziej, Katie
name: Ham, Jackson R.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Play is an important indicator of physical strength, cognitive functioning, and overall welfare for animals. Performed independently or cooperatively, play provides animals, including humans, opportunities to test and practice various physical abilities, social interactions, and object investigations. One area that is often overlooked in animal play is the presence and nature of games. Sometimes considered the social glue of human cultures, games enable participants to practice different moves, cooperatively follow a shared set of rules, and have ‘fun.’ Using archived footage collected from a stable beluga population in managed care for nearly 15 years, we examined spontaneous, untrained social interactions (i.e. games played) between two or more belugas. Social games encompassed repeated, role exchanges that involved a set of rules developed and shared between the interactants. The belugas engaged in seven different games: locomotor-based games with and without contact, triadic play involving inanimate objects and water, and socio-sexual play. Although most social games involved immature animals, some games did occur with adults. This catalog and description of the variety of games played by belugas will enable us to understand the role social behavior has in behavioral development and individual animal welfare.
Electromagnetically Induced Transparency with Superradiant and Subradiant states
Creators: name: Feng, Wei
name: Wang, Da-Wei
name: Cai, Han
name: Zhu, Shi-Yao
name: Scully, Marlan O.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We construct the electromagnetically induced transparency (EIT) by dynamically coupling a superradiant state with a subradiant state. The superradiant and subradiant states with enhanced and inhibited decay rates act as the excited and metastable states in EIT, respectively. Their energy difference determined by the distance between the atoms can be measured by the EIT spectra, which renders this method useful in subwavelength metrology. The scheme can also be applied to many atoms in nuclear quantum optics, where the transparency point due to counter-rotating wave terms can be observed.
description: 5 pages, 4 figures
Rate of asymptotic convergence near isolated singularity of G$_2$ manifold
Creators: name: Chen, Gao
Publisher: name: arXiv
Year: 2017
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper, a metric with G$_2$ holonomy and slow rate of convergence to the cone metric is constructed on a ball inside the cone over the flag manifold.
Half-magnetization plateau in a Heisenberg antiferromagnet on a triangular lattice
Creators: name: Ye, Mengxing
name: Chubukov, Andrey V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the phase diagram in a magnetic field of a 2D isotropic Heisenberg antiferromagnet on a triangular lattice. We consider spin-$S$ model with nearest-neighbor ($J_1$) and next-nearest-neighbor ($J_2$) interactions. We focus on the range of $1/8
description: 6+8 pages, 4+3 figures
A review of the impact of rain on camera-based perception in automated driving systems
Creators: name: Brophy, Tim
name: Mullins, Darragh
name: Parsi, Ashkan
name: Horgan, Jonathan
name: Ward, Enda
name: Denny, Patrick
name: EISING, CIARAN
name: Deegan, Brian
name: Glavin, Martin
name: Jones, Edward
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 40
subject: Engineering

description: Automated vehicles rely heavily on image data from visible spectrum cameras to perform a wide range of tasks from object detection, classification, and avoidance to path planning. The availability and reliability of these sensors in adverse weather is therefore of critical importance to the safe and continuous operation of an automated vehicle. This review paper presents a data communication-inspired Image Formation Framework that characterizes the data flow from object through channel to sensor, and subsequent processing of the data. This framework is used to explore the degree to which adverse weather conditions affect the cameras used in automated vehicles for sensing and perception. The effects of rain on each element of the model are reviewed. Furthermore, the prevalence of these rain-induced changes in publicly available open-source datasets is reviewed. The degree to which synthetic rain generation techniques can accurately capture these changes is also examined. Finally, this paper offers some suggestions on how future adverse weather automotive datasets should be collected.
Dark Energy Density in SUGRA models and degenerate vacua
Creators: name: Froggatt, C. D.
name: Nielsen, H. B.
name: Nevzorov, R.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In N=1 supergravity the tree-level scalar potential of the hidden sector may have a minimum with broken local supersymmetry (SUSY) as well as a supersymmetric Minkowski vacuum. These vacua can be degenerate, allowing for a consistent implementation of the multiple point principle. The first minimum where SUSY is broken can be identified with the physical phase in which we live. In the second supersymmetric phase, in flat Minkowski space, SUSY may be broken dynamically either in the observable or in the hidden sectors inducing a tiny vacuum energy density. We argue that the exact degeneracy of these phases may shed light on the smallness of the cosmological constant. Other possible phenomenological implications are also discussed. In particular, we point out that the presence of such degenerate vacua may lead to small values of the quartic Higgs coupling and its beta function at the Planck scale in the physical phase.
description: Presented at the International Conference on Cosmology, Gravitational Waves and Particles, Singapore, 6-10 February, 2017
The exaptive potential of (object) play behavior
Creators: name: Leca, Jean-Baptiste
name: Gunst, Noëlle
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: There are many adaptationist hypotheses and non-selectionist accounts for the evolution of play. Some scholars argued that, ‘primary-process play’ originally arose as a by-product of fortuitous conditions, adaptive or not (e.g. high metabolic energy, boredom). Once evolved, these basic playful behavioral elements, characterized by some quirkiness, arbitrariness, redundancy, flexibility, and latent potential, may serve as a built-in reservoir of creative and adaptive variability. As such, they could subsequently be co-opted for beneficial or fitness-enhancing behavioral effects (i.e. exaptations Type 2) during further evolutionary transformation into more elaborate secondary-process and tertiary-process play. We built a theoretical case for (object) play as a co-optable behavioral spandrel, with a potential for exaptations Type 2, and proposed a research design to empirical test whether stone play traditions can be exapted into stone tool use in non-human primates. Our approach is consistent with Gould’s pluralistic perspective on evolutionary theory.
An extension of Poincaré group based on generalized Fermi-Walker coordinates
Creators: name: Llosa, Josep
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The class of accelerated and rotating reference frames has been studied on the basis of generalized Fermi-Walker coordinates. We obtain the infinitesimal transformations connecting any two of these frames and also their commutation relations. We thus have an infinite dimensional extension of the Poincaré algebra and, although it turns out to be Abelian extension, and hence trivial, it is noteworthy that, contrarily to Lorentz boosts, acceleration and rotational boost generators commute with each other and with the generators of Poincaré group as well.
description: arXiv admin note: text overlap with arXiv:1512.07465
From bare interactions, low--energy constants and unitary gas to nuclear density functionals without free parameters: application to neutron matter
Creators: name: Lacroix, Denis
name: Boulet, Antoine
name: Grasso, Marcella
name: Yang, C. -J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We further progress along the line of Ref. [Phys. Rev. {\bf A 94}, 043614 (2016)] where a functional for Fermi systems with anomalously large $s$-wave scattering length $a_s$ was proposed that has no free parameters. The functional is designed to correctly reproduce the unitary limit in Fermi gases together with the leading-order contributions in the s- and p-wave channels at low density. The functional is shown to be predictive up to densities $\sim0.01$ fm$^{-3}$ that is much higher densities compared to the Lee-Yang functional, valid for $ρ< 10^{-6}$ fm$^{-3}$. The form of the functional retained in this work is further motivated. It is shown that the new functional corresponds to an expansion of the energy in $(a_s k_F)$ and $(r_e k_F)$ to all orders, where $r_e$ is the effective range and $k_F$ is the Fermi momentum. One conclusion from the present work is that, except in the extremely low--density regime, nuclear systems can be treated perturbatively in $-(a_s k_F)^{-1}$ with respect to the unitary limit. Starting from the functional, we introduce density--dependent scales and show that scales associated to the bare interaction are strongly renormalized by medium effects. As a consequence, some of the scales at play around saturation are dominated by the unitary gas properties and not directly to low-energy constants. For instance, we show that the scale in the s-wave channel around saturation is proportional to the so-called Bertsch parameter $ξ_0$ and becomes independent of $a_s$. We also point out that these scales are of the same order of magnitude than those empirically obtained in the Skyrme energy density functional. We finally propose a slight modification of the functional such that it becomes accurate up to the saturation density $ρ\simeq 0.16$ fm$^{-3}$.
Barjols, atelier Fabre, galoubet en ut, en ébène et en deux sections, appartenant à la collection de Marius Fabre
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
title: Terrestrial non-native species in Antarctica: introduction, impact and management response
Creators: name: Hughes, Kevin
name: Chwedorzewska, Katarzyna
name: Molina-Montenegro, Marco
name: R. Pertierra, Luis
Publisher: name: Antarctic Environments Portal
Year: 2023

description: Non-native species introductions and establishment are having substantial and likely irreversible environmental impacts on Antarctic ecosystems and biodiversity. Non-native species, or species that live outside of their natural range, can spread inter-regionally (from outside the Antarctic) or intra-regionally (within the Antarctic). Increased pressures on Antarctic systems from increased human activity and climate change can increase the risk of non-native species introduction and range expansion. Therefore, (i) continued research into the impacts of non-native species, (ii) widespread adoption of practices to reduce their introduction and spread, and (iii) development of further methods to respond to introductions are integral to the protection of the Antarctic and its associated ecosystems.
Tasks and Measures
Creators: name: Riesel, Anja
name: Larson, Michael J.
name: Holbrook, Amanda
name: Clayson, Peter E.
name: Bohyun Park
name: McDonald, Julia B.
name: Rocha, Harold
name: Baldwin, Scott
Publisher: name: OSF Registries
Year: 2021
Subjects: Achenbach Adult Self Report (ASR)
EGI
EPrime
General Temperament Survey (GTS)
Go/NoGo
Mood and Anxiety Symptom Questionnaire (MASQ)
Net Station
Penn State Worry Questionnaire (PSWQ)
flanker
gng
go/no-go
stroop

description: Stimulus presentation materials and information on self-report measures
A Multi-Site Study of Event-Related Brain Potentials (ERPs) and Their Task-Specific Relationships
Creators: name: Larson, Michael J.
name: Clayson, Peter E.
name: Keil, Andreas
name: Rocha, Harold
name: Baldwin, Scott
Publisher: name: OSF Registries
Year: 2021
Subjects: subject: Social Statistics
subject: Cognitive Neuroscience
subject: Life Sciences
subject: Quantitative Psychology
subject: Cognitive Psychology
subject: Neuroscience and Neurobiology
subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: EEG
subject: ERN
subject: ERP
subject: N2
subject: Pe
subject: alpha
subject: cognitive control
subject: construct validity
subject: criterion validity
subject: error positivity (Pe)
subject: error processing
subject: error-related negativity (ERN)
subject: event-related brain potentials (ERPs)
subject: flanker
subject: frequency
subject: go/no-go
subject: internal consistency
subject: internalizing/externalizing symptoms
subject: open EEG data
subject: oscillatory phenomena
subject: psychometric reliability
subject: psychometrics
subject: spectral analysis
subject: stroop
subject: theta

description: The most prevalent oscillatory phenomena in studies of cognitive control that use electroencephalography (EEG) are the alpha- (8-12 Hz) and theta- (4-8 Hz) bands of its power spectrum and are thought to index distinct cortical processes. Similarly, error-related negativity (ERN), Pe, N2, and P3 components of the event-related potential (ERP) are prominent in time-domain data during cognitive-control tasks and are typically assumed to be functionally distinct. The present study proposes to investigate the construct validity of these cognitive control indices using a multitrait-multimethod approach using EEG data recorded during a flanker, Stroop, and go/no-go task from 182 students across two university campuses. The aims of this study are as follows: 1) to examine the convergent and divergent validity of alpha- and theta-band activity during both stimulus presentation and participant responses across the three tasks, and 2) to examine these oscillatory bands alongside response-locked (ERN, Pe) and stimulus-locked (N2, P3) ERPs to determine convergent and discriminant validity across time and frequency domains.
Experimental investigations of energy carrier interactions with atomic disorders and artificial long-range orders
Creators: name: Smith, Brandon Paul
name: 0000-0002-5073-7591
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Phonons
Thermal transport
Thermal conductivity
Nanomaterials
Disorder
Moire
Raman
MoS2
SiGe
Graphene

description: The field of nanoscale energy transport, conversion, and storage is at an exciting time with next-generation devices manipulating discrete energy carriers, e.g. phonons, photons, and electrons, in confined dimensions arriving closer to commercialization, such as solid-state flexible electronics and optoelectronics utilizing one dimension (1D) and two dimensional (2D) nanomaterials. The transport dynamics of quasiparticles and their coupling are modified, notably in low dimensional nanomaterials, with the inclusion of disorder and artificial long-range order. Through this lens, it is possible to probe interesting physics and draw out intrinsic properties of the nanomaterials. This is especially important for electronic systems and energy conversion & storage devices where heat generation and dissipation within nano- and microscale locations of nonequilibrium impedes continued advancement. This thesis examines outstanding questions concerning nanoscale thermal and thermoelectric transport in low-dimensional materials to further understanding of crystal disorder and artificial long-range order. Specifically, the material systems investigated are alloy disorder and surface roughness in semiconducting silicon germanium (SiGe) nanowires, microscale rippling in layered molybdenum disulfide (MoS2) flakes, intra- and interlayer interactions in bulk and monolayer MoS2, and artificially created, long-range domain walls in twisted bilayer graphene (TBG). The fundamental questions are addressed through electrothermal, optothermal, and scanning probe metrology techniques. First, eight-probe thermal conductivity measurements of SiGe nanowires show that alloying suppresses thermal transport, and the mean-free-paths of low-frequency phonons are suppressed by diffuse surface roughness scattering in nanowires. The diffuse surface scattering results in length-independent thermal conductivity for lengths over two micrometers. Similarly, four-probe thermal conductivity measurements reveal that microscale ripples have negligible effects on phonon transport in 2D layers as the ripple wavelengths and curvatures are much larger than the phonon mean free paths and wavelengths. The peak thermal conductivity is found to increase with decreasing Raman scattering intensity in the frequency range with vanishing phonon density of states in MoS2 indicating an important role of point defect scattering. In addition, this dissertation presents an experimental effort to employ micro-Raman spectroscopy to investigate local nonequilibrium among different phonon polarizations in MoS2 inside the focused laser spot. It also describes an exploration of ultra-high vacuum scanning probe microscopy for probing the local thermoelectric property of twisted bilayer graphene moiré superstructures.
Nanoscale η-NiSi formation via ion irradiation of Si/Ni/Si
Creators: name: Banu, Nasrin
name: Satpati, Biswarup
name: Bhukta, Anjan
name: Dev, B. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nickel monosilicide (NiSi) has emerged as an excellent material of choice for source-drain contact applications below 45 nm node complementary metal-oxide-semiconductor (CMOS) technology. We have investigated the formation of nanoscale NiSi by ion irradiation of Si (~5 nm)/Ni(~15 nm)/Si, grown under ultrahigh vacuum environment. Irradiation was carried out at room temperature with 1 MeV Si+ ions. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were employed for analysis. With increasing ion fluence ion beam mixing occurs and more and more Si is incorporated into the Ni layer and this layer gets amorphized. At an even higher fluence a recrystallized uniform nickel monosilicide (η-NiSi) layer is formed. Several planar spacings of different Miller indices of η-NiSi have been observed in XRD and TEM. Additionally, an oscillatory amorphization and recrystallization has been observed in the substrate Si with increasing ion fluence. To our knowledge, this has never been observed in ion irradiation of bare Si in decades of work in this area. The oscillatory amorphization/recrystallization in Si is apparently Ni-induced. Irradiation displaces Ni and produces a distribution of Ni in amorphized Si. Irradiation at a higher fluence produces two recrystallized Si bands in amorphous Si with concomitant accumulation of Ni at the amorphous/crystalline interfaces. On further increase of irradiation fluence the recrystallized Si bands again pass through amorphization and recrystallization. The total thickness of recrystallized as well as amorphous Si shows an oscillatory behavior as a function of ion fluence.
description: 17 pages, 11 figures
Convective Quenching of Field Reversals in Accretion Disc Dynamos
Creators: name: Coleman, Matthew S. B.
name: Yerger, Evan
name: Blaes, Omer
name: Salvesen, Greg
name: Hirose, Shigenobu
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Vertically stratified shearing box simulations of magnetorotational turbulence commonly exhibit a so-called butterfly diagram of quasi-periodic azimuthal field reversals. However, in the presence of hydrodynamic convection, field reversals no longer occur. Instead, the azimuthal field strength fluctuates quasi-periodically while maintaining the same polarity, which can either be symmetric or antisymmetric about the disc midplane. Using data from the simulations of Hirose et al. (2014), we demonstrate that the lack of field reversals in the presence of convection is due to hydrodynamic mixing of magnetic field from the more strongly magnetized upper layers into the midplane, which then annihilate field reversals that are starting there. Our convective simulations differ in several respects from those reported in previous work by others, in which stronger magnetization likely plays a more important role than convection.
description: 12 pages, 10 figures, 1 table, accepted for publication in MNRAS
A search for extragalactic pulsars in the Local Group galaxies IC 10 and Barnard's Galaxy
Creators: name: Noori, Hind Al
name: Roberts, Mallory S. E.
name: Champion, David
name: McLaughlin, Maura
name: Ransom, Scott
name: Ray, Paul S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As of today, more than 2500 pulsars have been found, nearly all in the Milky Way, with the exception of ~28 pulsars in the Small and Large Magellanic Clouds. However, there have been few published attempts to search for pulsars deeper in our Galactic neighborhood. Two of the more promising Local Group galaxies are IC 10 and NGC 6822 (also known as Barnard's Galaxy) due to their relatively high star formation rate and their proximity to our galaxy. IC 10 in particular, holds promise as it is the closest starburst galaxy to us and harbors an unusually high number of Wolf-Rayet stars, implying the presence of many neutron stars. We observed IC 10 and NGC 6822 at 820 MHz with the Green Bank Telescope for ~15 and 5 hours respectively, and put a strong upper limit of 0.1 mJy on pulsars in either of the two galaxies. We also performed single pulse searches of both galaxies with no firm detections.
Vestiges of quantum oscillations in the open evolution of semiclassical states
Creators: name: de Almeida, Alfredo M. Ozorio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A single wave component of a quantum particle can in principle be detected by the way that it interferes with itself, that is, through the local wave function correlation. The interpretation as the expectation of a local translation operator allows this measure of quantum wavyness to be followed through the process of decoherence in open quantum systems. This is here assumed to be Markovian, determined by Lindblad operators that are linear in position and momentum. The limitation of small averaging windows and even smaller correlation lengths simplifies the semiclassical theory for the evolving local correlation. Its spectrum has a peak for each classical momentum, subjected to Gaussian broadening with decoherence. These spectral lines can be clearly resolved even after the Wigner function has become positive: The correlations located far from caustics seem to be the last vestige of quantum oscilations.
description: 23 pages, 1 figure
title: Differences in Married Versus Maritally Disrupted Children's Frequency of Contact With Their Mothers
Creators: name: Thompson, Sonya Dee
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1997

description: This study explores the effects of children's marital status on the frequency of contact they have with their mothers. As American society ages and marital disruption remains high, it is important to determine if there are differences in the relationships adult children have with their aging parents. A secondary analysis was conducted on data collected in 1986 for the General Social Survey. Two hypotheses were created from theory:

(1) From dependency and obligation theories, it was predicted that maritally disrupted adult children would report having greater contact with their mothers than married adult children.

(2) From status and resource adjustment theories, it was predicted that married adult children would report having greater contact with their mothers than maritally disrupted adult children.

Cross-tabular analysis revealed that marital disruption did not significantly affect the frequency of contact adult children report having with their mothers except when geographic proximity to parent's home was "near." Then, married respondents had significantly more frequent contact with mothers than did maritally disrupted respondents (p<0.05). With few exceptions, all respondents saw their mothers on a weekly or greater basis. It is concluded that the adult child-parent relationship perseveres regardless of marital status and even when potentially influencing factors such as respondent's age, gender, income, number of siblings and number of children are controlled. Familial exchange is not significantly affected by marital disruption.
Schmidt's subspace theorem for moving hypersurface targets
Creators: name: Son, Nguyen Thanh
name: Van Tan, Tran
name: Van Thin, Nguyen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J68, 11J25, 11J97

description: It was discovered that there is a formal analogy between Nevanlinna theory and Diophantine approximation. Via Vojta's dictionary, the Second Main Theorem in Nevanlinna theory corresponds to Schmidt's Subspace Theorem in Diophantine approximation. Recently, Cherry, Dethloff, and Tan (arXiv:1503.08801v2 [math.CV]) obtained a Second Main Theorem for moving hypersurfaces intersecting projective varieites. In this paper, we shall give the counterpart of their Second Main Theorem in Diophantine approximation.
description: 27 pages. arXiv admin note: text overlap with arXiv:1503.08801
Balancing and Walking Using Full Dynamics LQR Control With Contact Constraints
Creators: name: Mason, Sean
name: Rotella, Nicholas
name: Schaal, Stefan
name: Righetti, Ludovic
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Torque control algorithms which consider robot dynamics and contact constraints are important for creating dynamic behaviors for humanoids. As computational power increases, algorithms tend to also increase in complexity. However, it is not clear how much complexity is really required to create controllers which exhibit good performance. In this paper, we study the capabilities of a simple approach based on contact consistent LQR controllers designed around key poses to control various tasks on a humanoid robot. We present extensive experimental results on a hydraulic, torque controlled humanoid performing balancing and stepping tasks. This feedback control approach captures the necessary synergies between the DoFs of the robot to guarantee good control performance. We show that for the considered tasks, it is only necessary to re-linearize the dynamics of the robot at different contact configurations and that increasing the number of LQR controllers along desired trajectories does not improve performance. Our result suggest that very simple controllers can yield good performance competitive with current state of the art, but more complex, optimization-based whole-body controllers. A video of the experiments can be found at https://youtu.be/5T08CNKV1hw.