cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tensor force role in $β$ decays analyzed within the Gogny-interaction shell model
Creators: name: Dai, B.
name: Hu, B. S.
name: Ma, Y. Z.
name: Li, J. G.
name: Wang, S. M.
name: Johnson, C. W.
name: Xu, F. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: The half-life of the famous $^{14}$C $β$ decay is anomalously long, with different mechanisms: the tensor force, cross-shell mixing, and three-body forces, proposed to explain the cancellations that lead to a small transition matrix element. Purpose: We revisit and analyze the role of the tensor force for the $β$ decay of $^{14}$C as well as of neighboring isotopes. Methods: We add a tensor force to the Gogny interaction, and derive an effective Hamiltonian for shell-model calculations. The calculations were carried out in a $p$-$sd$ model space to investigate cross-shell effects. Furthermore, we decompose the wave functions according to the total orbital angular momentum $L$ in order to analyze the effects of the tensor force and cross-shell mixing. Results: The inclusion of the tensor force significantly improves the shell-model calculations of the $β$-decay properties of carbon isotopes. In particular, the anomalously slow $β$ decay of $^{14}$C can be explained by the isospin $T=0$ part of the tensor force, which changes the components of $^{14}$N with the orbital angular momentum $L=0,1$, and results in a dramatic suppression of the Gamow-Teller transition strength. At the same time, the description of other nearby $β$ decays are improved. Conclusions: Decomposition of wave function into $L$ components illuminates how the tensor force modifies nuclear wave functions, in particular suppression of $β$-decay matrix elements. Cross-shell mixing also has a visible impact on the $β$-decay strength. Inclusion of the tensor force does not seem to significantly change, however, binding energies of the nuclei within the phenomenological interaction.
description: 8 Pages,7 Figures
Source data_Collective Buoyancy-driven Dynamics of Enzymatic Nanomotors
Creators: name: Chen, Shuqin
name: Peetroons, Xander
name: Bakenecker, Anna C.
name: Lezcano, Florencia
name: Aranson, Igor S.
name: Sanchez, Samuel
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 340603
subject: Colloid and surface chemistry
classificationCode: 340609
subject: Transport properties and non-equilibrium processes

description: The is a source date file related to the collective buoyancy-driven dynamics of enzymatic nanomotors.
OGLE-2019-BLG-0304: Competing Interpretations between a Planet-binary Model and a Binary-source + Binary-lens model
Creators: name: Han, Cheongho
name: Udalski, Andrzej
name: Lee, Chung-Uk
name: Kim, Doeon
name: Ryu, Yoon-Hyun
name: Albrow, Michael D.
name: Chung, Sun-Ju
name: Gould, Andrew
name: Hwang, Kyu-Ha
name: Jung, Youn Kil
name: Kim, Hyoun-Woo
name: Shin, In-Gu
name: Shvartzvald, Yossi
name: Yee, Jennifer C.
name: Zang, Weicheng
name: Cha, Sang-Mok
name: Kim, Dong-Jin
name: Kim, Seung-Lee
name: Lee, Dong-Joo
name: Lee, Yongseok
name: Park, Byeong-Gon
name: Pogge, Richard W.
name: Mróz, Przemek
name: Szymański, Michał K.
name: Skowron, Jan
name: Poleski, Radosław
name: Soszyński, Igor
name: Pietrukowicz, Paweł
name: Kozłowski, Szymon
name: Ulaczyk, Krzysztof
name: Rybicki, Krzysztof A.
name: Iwanek, Patryk
name: Wrona, Marcin
name: Gromadzki, Mariusz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyze the microlensing event OGLE-2019-BLG-0304, whose light curve exhibits two distinctive features: a deviation in the peak region and a second bump appearing $\sim 61$~days after the main peak. Although a binary-lens model can explain the overall features, it leaves subtle but noticeable residuals in the peak region. We find that the residuals can be explained by the presence of either a planetary companion located close to the primary of the binary lens (3L1S model) or an additional close companion to the source (2L2S model). Although the 3L1S model is favored over the 2L2S model, with $Δχ^2\sim 8$, securely resolving the degeneracy between the two models is difficult with the currently available photometric data. According to the 3L1S interpretation, the lens is a planetary system, in which a planet with a mass $0.51^{+0.51}_{-0.23}~M_{\rm J}$ is in an S-type orbit around a binary composed of stars with masses $0.27^{+0.27}_{-0.12}~M_\odot$ and $0.10^{+0.10}_{-0.04}~M_\odot$. According to the 2L2S interpretation, on the other hand, the source is composed of G- and K-type giant stars, and the lens is composed of a low-mass M dwarf and a brown dwarf with masses $0.12^{+0.12}_{-0.05}~M_\odot$ and $0.045^{+0.045}_{-.019}~M_\odot$, respectively. The event illustrates the need for through model testing in the interpretation of lensing events with complex features in light curves.
description: 11 pages, 3 tables, 11 figures
A Description of All Self-Adjoint Extensions of the Laplacian and Krein-Type Resolvent Formulas on Nonsmooth Domains
Creators: name: Gesztesy, Fritz
name: Mitrea, Marius
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35J10, 35J25, 35Q40 (Primary), 35P05, 47A10, 47F05 (Secondary)

description: This paper has two main goals. First, we are concerned with the classification of self-adjoint extensions of the Laplacian $-Δ\big|_{C^\infty_0(Ω)}$ in $L^2(Ω; d^n x)$. Here, the domain $Ω$ belongs to a subclass of bounded Lipschitz domains (which we term quasi-convex domains), which contain all convex domains, as well as all domains of class $C^{1,r}$, for $r\in(1/2,1)$. Second, we establish Krein-type formulas for the resolvents of the various self-adjoint extensions of the Laplacian in quasi-convex domains and study the properties of the corresponding Weyl--Titchmarsh operators (or energy-dependent Dirichlet-to-Neumann maps). One significant technical innovation in this paper is an extension of the classical boundary trace theory for functions in spaces which lack Sobolev regularity in a traditional sense, but are suitably adapted to the Laplacian.
description: 70 pages, some typos were removed
Hyposoter neglectus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter neglectus

description: Hyposoter neglectus (HOLMGREN, 1860)
M a t e r i a l e x a m i n e d: 1♀ 24.viii.-7.ix.
D i s t r i b u t i o n: Western Palaearctic and Oriental, known from Georgia (RIEDEL et al. 2018).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 75, DOI: 10.5281/zenodo.10415120
Habitat use patterns and associated movements of white-tailed deer in Southeastern British Columbia
Creators: name: Smith, Christian Arthur
Publisher: name: University of British Columbia
Year: 2010

description: This study of deer ecology was conducted from January, 1975, to May, 1976, in the East Kootenay region of British Columbia. Plant communities within the annual range of a population of white-tailed deer were classified into habitat types and analysed for species composition, productivity and forage utilization. Relative levels of use of winter habitat types were determined from track and pellet group counts. Use of summer habitats was determined subjectively from ground and aerial surveys. Movements associated with changes in habitat use and season were documented by observation and radio tracking of marked individuals. Forest succession over much of the winter range was found to have resulted in substantial decreases in availability of herbaceous and deciduous browse, causing quantitative and qualitative changes in the diet of this deer population. To compensate for this situation deer feeding activity was concentrated in the open habitat types which provide maximum quantities and qualities of forage. However, snowdepth in one winter was found to reach levels which prevented deer from exploiting these areas and concentrated them in areas where a maturing overstory reduced snowpack. The impact of concentration in shelter types with consequent reduction of available food, compared to a very mild winter, was an apparent 30% reduction in the juvenile:100 adults ratio the following spring. Summer distribution also appeared to be affected by large-scale forest succession which has produced a pattern of widely scattered, small openings. These were found mainly along water courses or rocky slopes at mid- elevations on the west side of the Rock Mountain Trench. Deer density was low throughout the summer range, but preference was observed for the open areas just described. Spring dispersal from the winter range was related to snow melt and green-up of vegetation, particularly cultivated alfalfa fields. Summer home ranges were relatively small and summer movements limited. The average distance travelled to summer range by nine deer was greater than that reported elsewhere in the literature and may be related to summer range habitat condition. Fall movements were apparently stimulated by lasting snowfall. Although density of deer on the winter range varied greatly between years, home range loyalty was found to be relatively high.
KMT-2021-BLG-0322: Severe degeneracy between triple-lens and higher-order binary-lens interpretations
Creators: name: Han, Cheongho
name: Gould, Andrew
name: Hirao, Yuki
name: Lee, Chung-Uk
name: Albrow, Michael D.
name: Chung, Sun-Ju
name: Hwang, Kyu-Ha
name: Jung, Youn Kil
name: Kim, Doeon
name: Mao, Shude
name: Ryu, Yoon-Hyun
name: Shin, In-Gu
name: Shvartzvald, Yossi
name: Yee, Jennifer C.
name: Zang, Weicheng
name: Cha, Sang-Mok
name: Kim, Dong-Jin
name: Kim, Hyoun-Woo
name: Kim, Seung-Lee
name: Lee, Dong-Joo
name: Lee, Yongseok
name: Park, Byeong-Gon
name: Pogge, Richard W.
name: Abe, Fumio
name: Barry, Richard
name: Bennett, David P.
name: Bhattacharya, Aparna
name: Bond, Ian
name: Donachie, Martin
name: Fujii, Hirosane
name: Fukui, Akihiko
name: Itow, Yoshitaka
name: Kirikawa, Rintaro
name: Kondo, Iona
name: Koshimoto, Naoki
name: Li, Man Cheung Alex
name: Matsubara, Yutaka
name: Muraki, Yasushi
name: Miyazaki, Shota
name: Ranc, Clément
name: Rattenbury, Nicholas J.
name: Satoh, Yuki
name: Shoji, Hikaru
name: Sumi, Takahiro
name: Suzuki, Daisuke
name: Tanaka, Yuzuru
name: Tristram, Paul J.
name: Yamawaki, Tsubasa
name: Yonehara, Atsunori
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the microlensing event KMT-2021-BLG-0322, for which the light curve exhibits three distinctive sets of caustic-crossing features. It is found that the overall features of the light curve are approximately described by a binary-lens (2L1S) model, but the model leaves substantial residuals. We test various interpretations with the aim of explaining the residuals. We find that the residuals can be explained either by considering a nonrectilinear lens-source motion caused by the microlens-parallax and lens-orbital effects or by adding a low-mass companion to the binary lens (3L1S model). The degeneracy between the higher-order 2L1S model and the 3L1S model is very severe, making it difficult to single out a correct solution based on the photometric data. This degeneracy was known before for two previous events (MACHO-97-BLG-41 and OGLE-2013-BLG-0723), which led to the false detections of planets in binary systems, and thus the identification of the degeneracy for KMT-2021-BLG-0322 illustrates that the degeneracy can be not only common but also very severe, emphasizing the need to check both interpretations of deviations from 2L1S models. From the Bayesian analysis conducted with the measured lensing observables of the event timescale, angular Einstein radius, and microlens parallax, it was estimated that the binary lens components have masses $(M_1, M_2) =(0.62^{+0.25}_{-0.26}~M_\odot,0.07^{+0.03}_{-0.03}~M_\odot)$, for both 2L1S and 3L1S solutions, and the mass of the tertiary lens component according to the 3L1S solution is $M_3=6.40^{+2.64}_{-2.78}~M_{\rm J}$.
description: 9 pages, 10 figures, 3 tables
Towards more reasonable identifications of the symmetries in noisy digital images from periodic and aperiodic crystals
Creators: name: Moeck, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: A geometric form of information theory allows for reasonable, i.e. probabilistic, evidence-ranking based, and generalized noise-level dependent, classifications of the crystallographic and quasicrystallographic symmetries in noisy digital images. Such classifications are based solely on the image pixel intensity values, justifiable assumptions about the aggregate distribution of generalized noise in the images, asymptotic extrapolations to zero-noise images, and rational symmetry model selections with maximized predictive accuracy in the presence of both symmetry-inclusion relations and pseudo-symmetries. Preferring a well developed geometric form of information theory over a theoretically possible geometric-Bayesian approach for these classifications is the only subjective choice made. Using digital data planes and assuming approximately Gaussian distributed generalized noise, reasonable crystallographic and quasicrystallographic symmetry classifications can be made for noisy images from both scanning probe and transmission electron microscopes. A binary type classification of structurally very similar mate-rials into either a quasicrystal or one of its rational/crystalline approximants based on the approximate point symmetries in their noisy digital images is proposed here for the first time.
description: 4 pages. Accepted conference paper IEEE Nano 2021
Reasoning Graph Networks for Kinship Verification: from Star-shaped to Hierarchical
Creators: name: Li, Wanhua
name: Lu, Jiwen
name: Wuerkaixi, Abudukelimu
name: Feng, Jianjiang
name: Zhou, Jie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we investigate the problem of facial kinship verification by learning hierarchical reasoning graph networks. Conventional methods usually focus on learning discriminative features for each facial image of a paired sample and neglect how to fuse the obtained two facial image features and reason about the relations between them. To address this, we propose a Star-shaped Reasoning Graph Network (S-RGN). Our S-RGN first constructs a star-shaped graph where each surrounding node encodes the information of comparisons in a feature dimension and the central node is employed as the bridge for the interaction of surrounding nodes. Then we perform relational reasoning on this star graph with iterative message passing. The proposed S-RGN uses only one central node to analyze and process information from all surrounding nodes, which limits its reasoning capacity. We further develop a Hierarchical Reasoning Graph Network (H-RGN) to exploit more powerful and flexible capacity. More specifically, our H-RGN introduces a set of latent reasoning nodes and constructs a hierarchical graph with them. Then bottom-up comparative information abstraction and top-down comprehensive signal propagation are iteratively performed on the hierarchical graph to update the node features. Extensive experimental results on four widely used kinship databases show that the proposed methods achieve very competitive results.
description: Accepted by IEEE Transactions on Image Processing (TIP)
Pouvoir municipal et marché de rue dans l'agglomération urbaine de Port-au-Prince : une analyse des rapports sociaux entre les autorités locales et les marchandes de rue
Creators: name: Paul, Stéphanie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: Marchés informels
Espace public urbain
Rapports État-citoyens
Résistance quotidienne
Pétion-Ville, Haïti
Débrouillardise

description: Cette thèse examine les rapports complexes entre les marchandes de rue et les autorités municipales à Pétion-Ville, Haïti. À travers une approche ethnographique combinant observation participante prolongée et entretiens approfondis, l'étude analyse la configuration spatiale d'un marché informel emblématique qui prend place à la rue Panaméricaine. Elle révèle les tensions entre les interventions parfois musclées des agents municipaux pour déloger les marchandes, et la résilience de ces dernières qui déploient des tactiques de contournement pour préserver leurs activités vitales. Les résultats mettent en lumière le sentiment d'oppression ressenti par les marchandes face à des expulsions arbitraires, qui contrastent avec leurs attentes de protection de la part des autorités. Cette perception négative a généré une profonde méfiance, en dépit d'un désir persistant d'être reconnues et d'obtenir des emplacements formels. L'étude montre également comment, par-delà la victimisation, les marchandes font preuve d'une remarquable agentivité collective à travers des stratégies de résistance discret comme le camouflage de leurs activités. En réponse à la problématique de départ, l'analyse révèle que la configuration spatiale du marché informel émerge de ces interactions complexes entre logiques officielles de contrôle top-down et tactiques officieuses de débrouillardise bottom-up de la part des marchandes. Cette thèse ouvre des perspectives inédites sur le rôle et l'expérience de ces actrices économiques dans la production concrète de l'espace public urbain.
Nearest Neighbour Few-Shot Learning for Cross-lingual Classification
Creators: name: Bari, M Saiful
name: Haider, Batool
name: Mansour, Saab
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Even though large pre-trained multilingual models (e.g. mBERT, XLM-R) have led to significant performance gains on a wide range of cross-lingual NLP tasks, success on many downstream tasks still relies on the availability of sufficient annotated data. Traditional fine-tuning of pre-trained models using only a few target samples can cause over-fitting. This can be quite limiting as most languages in the world are under-resourced. In this work, we investigate cross-lingual adaptation using a simple nearest neighbor few-shot (<15 samples) inference technique for classification tasks. We experiment using a total of 16 distinct languages across two NLP tasks- XNLI and PAWS-X. Our approach consistently improves traditional fine-tuning using only a handful of labeled samples in target locales. We also demonstrate its generalization capability across tasks.
Quasi-Eclectic Modular Flavor Symmetries
Creators: name: Chen, Mu-Chun
name: Knapp-Perez, Victor
name: Ramos-Hamud, Mario
name: Ramos-Sanchez, Saul
name: Ratz, Michael
name: Shukla, Shreya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Modular flavor symmetries provide us with a new, promising approach to the flavor problem. However, in their original formulation the kinetic terms of the standard model fields do not have a preferred form, thus introducing additional parameters, which limit the predictive power of this scheme. In this work, we introduce the scheme of quasi-eclectic flavor symmetries as a simple fix. These symmetries are the direct product of a modular and a traditional flavor symmetry, which are spontaneously broken to a diagonal modular flavor subgroup. This allows us to construct a version of Feruglio's model with the Kaehler terms under control. At the same time, the starting point is reminiscent of what one obtains from explicit string models.
description: 15 pages, 1 figure
Successive Coronal Mass Ejections Associated with Weak Solar Energetic Particle Events
Creators: name: Zhuang, Bin
name: Lugaz, Noé
name: Gou, Tingyu
name: Ding, Liuguan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The scenario of twin coronal mass ejections (CMEs), i.e., a fast and wide primary CME (priCME) preceded by previous CMEs (preCMEs), has been found to be favorable to a more efficient particle acceleration in large solar energetic particle (SEP) events. Here, we study 19 events during 2007--2014 associated with twin-CME eruptions but without large SEP observations at L1 point. We combine remote-sensing and in situ observations from multiple spacecraft to investigate the role of magnetic connectivity in SEP detection and the CME information in 3-dimensional (3D) space. We study one-on-one correlations of the priCME 3D speed, flare intensity, suprathermal backgrounds, and height of CME-CME interaction with the SEP intensity. Among these, the priCME speed is found to correlate with the SEP peak intensity at the highest level. We use the projection correlation method to analyze the correlations between combinations of these multiple independent factors and the SEP peak intensity. We find that the only combination of two or more parameters that has higher correlation with the SEP peak intensity than the CME speed is the CME speed combined with the propagation direction. This further supports the dominant role of the priCME in controlling the SEP enhancements, and emphasizes the consideration of the latitudinal effect. Overall, the magnetic connectivity in longitude as well as latitude and the relatively lower priCME speed may explain the existence of the twin-CME SEP-poor events. The role of the barrier effect of preCME(s) is discussed for an event on 2013 October 28.
description: Accepted to ApJ on 27-Jul-2021
Electronic structure of Rf^+ (Z = 104) from ab initio calculations
Creators: name: Ramanantoanina, Harry
name: Borschevsky, Anastasia
name: Block, Michael
name: Laatiaoui, Mustapha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report calculation of the energy spectrum and the spectroscopic properties of the superheavy element ion: Rf^+. We use the 4-component relativistic Dirac-Coulomb Hamiltonian and the multireference configuration interaction (MRCI) model to tackle the complex electronic structure problem that combines strong relativistic effects and electron correlation. We determine the energies of the ground and the low-lying excited states of Rf+, which originate from the 7s^26d^1, 7s^16d^2, 7s^27p^1, and 7s^16d^17p^1 configurations. The results are discussed vis-à-vis the lighter homologue, Hf^+ ion. We also assess the uncertainties of the predicted energy levels. The main purpose of the presented calculations is to provide a reliable prediction of the energy levels and to identify suitable metastable excited states that are good candidates for the planned ion-mobility-assisted laser spectroscopy studies.
description: 18 pages, 1 figure
Spherically symmetric charged black holes with wavy scalar hair
Creators: name: Brihaye, Y.
name: Hartmann, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study standard Einstein-Maxwell theory minimally coupled to a complex valued and self-interacting scalar field. We demonstrate that new, previously unnoticed spherically symmetric, charged black hole solutions with scalar hair exist in this model for sufficiently large gravitational coupling and sufficiently small electromagnetic coupling. The novel scalar hair has the form of a spatially oscillating ''wave packet'' and back-reacts on the space-time such that both the Ricci and the Kretschmann scalar, respectively, possess qualitatively similar oscillations.
Hyposoter notatus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter notatus

description: Hyposoter notatus (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap4: 1♀ 1♁13-27.vii.
D i s t r i b u t i o n: Holarctic, known from Azerbaijan (ALIEV 1980a, 1988), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Magnetic Structure and Propagation of Two Interacting CMEs from the Sun to Saturn
Creators: name: Palmerio, Erika
name: Nieves-Chinchilla, Teresa
name: Kilpua, Emilia K. J.
name: Barnes, David
name: Zhukov, Andrei N.
name: Jian, Lan K.
name: Witasse, Olivier
name: Provan, Gabrielle
name: Tao, Chihiro
name: Lamy, Laurent
name: Bradley, Thomas J.
name: Mays, M. Leila
name: Möstl, Christian
name: Roussos, Elias
name: Futaana, Yoshifumi
name: Masters, Adam
name: Sánchez-Cano, Beatriz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: One of the grand challenges in heliophysics is the characterisation of coronal mass ejection (CME) magnetic structure and evolution from eruption at the Sun through heliospheric propagation. At present, the main difficulties are related to the lack of direct measurements of the coronal magnetic fields and the lack of 3D in-situ measurements of the CME body in interplanetary space. Nevertheless, the evolution of a CME magnetic structure can be followed using a combination of multi-point remote-sensing observations and multi-spacecraft in-situ measurements as well as modelling. Accordingly, we present in this work the analysis of two CMEs that erupted from the Sun on 28 April 2012. We follow their eruption and early evolution using remote-sensing data, finding indications of CME--CME interaction, and then analyse their interplanetary counterpart(s) using in-situ measurements at Venus, Earth, and Saturn. We observe a seemingly single flux rope at all locations, but find possible signatures of interaction at Earth, where high-cadence plasma data are available. Reconstructions of the in-situ flux ropes provide almost identical results at Venus and Earth but show greater discrepancies at Saturn, suggesting that the CME was highly distorted and/or that further interaction with nearby solar wind structures took place before 10 AU. This work highlights the difficulties in connecting structures from the Sun to the outer heliosphere and demonstrates the importance of multi-spacecraft studies to achieve a deeper understanding of the magnetic configuration of CMEs.
description: 40 pages, 11 figures, accepted for publication in Journal of Geophysical Research: Space Physics
Hyposoter orbator
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter orbator

description: Hyposoter orbator (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap7: 1♀ 27.vii.-10.viii.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Computerized farm management information system for commercial beef ranch operators
Creators: name: Sakalauskas, A.J.
Publisher: name: University of British Columbia
Year: 2010

description: The objective of the thesis was to develop a computerized farm management information system that would assist ranchers, extension personnel and farm management specialists in their decision making process. Intensive formal farm planning was made feasible by the use of a multiperiod linear programming model supplemented by an input form, matrix generator and report writer software. The model developed represented the structure and production conditions of a beef cow/calf, cow/yearling ranch. It incorporated decision variables representing feeding and livestock activities and the cash flows associated with those activities. The management information system was tested on ten cow/calf, cow/ yearling ranches in the central interior of British Columbia. From the examination of actual test ranches, their management practices, and their problems, a hypothetical ranch was formulated. This ranch was used to illustrate the capabilities and output of the management information system. The capabilities documented were of a descriptive/budgeting, optimization, and research nature. The output consisted of an inventory report, income statement, cash flow summary, balance sheet, financial measures and ratios, and a livestock summary. The conclusion was reached that the management information system developed is a valid descriptive/predictive tool applicable to commercial beef operations.
Automatically Labeling Low Quality Content on Wikipedia by Leveraging Patterns in Editing Behaviors
Creators: name: Asthana, Sumit
name: Thommel, Sabrina Tobar
name: Halfaker, Aaron Lee
name: Banovic, Nikola
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Wikipedia articles aim to be definitive sources of encyclopedic content. Yet, only 0.6% of Wikipedia articles have high quality according to its quality scale due to insufficient number of Wikipedia editors and enormous number of articles. Supervised Machine Learning (ML) quality improvement approaches that can automatically identify and fix content issues rely on manual labels of individual Wikipedia sentence quality. However, current labeling approaches are tedious and produce noisy labels. Here, we propose an automated labeling approach that identifies the semantic category (e.g., adding citations, clarifications) of historic Wikipedia edits and uses the modified sentences prior to the edit as examples that require that semantic improvement. Highest-rated article sentences are examples that no longer need semantic improvements. We show that training existing sentence quality classification algorithms on our labels improves their performance compared to training them on existing labels. Our work shows that editing behaviors of Wikipedia editors provide better labels than labels generated by crowdworkers who lack the context to make judgments that the editors would agree with.
Coherent one-way quantum conference key agreement based on twin field
Creators: name: Cao, Xiao-Yu
name: Gu, Jie
name: Lu, Yu-Shuo
name: Yin, Hua-Lei
name: Chen, Zeng-Bing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum conference key agreement (CKA) enables key sharing among multiple trusted users with information-theoretic security. Currently, the key rates of most quantum CKA protocols suffer from the limit of the total efficiency among quantum channels. Inspired by the coherent one-way and twin-field quantum key distribution (QKD) protocols, we propose a quantum CKA protocol of three users. Exploiting coherent states with intensity 0 and $μ$ to encode logic bits, our protocol can break the limit. Additionally, the requirements of phase randomization and multiple intensity modulation are removed in our protocol, making its experimental demonstration simple.
description: 6 pages, 4 figures
Generation of relativistic positrons carrying intrinsic orbital angular momentum
Creators: name: Lei, Shaohu
name: Bu, Zhigang
name: Wang, Weiqing
name: Shen, Baifei
name: Ji, Liangliang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: High energy positrons can be efficiently created through high-energy photons splitting into electron-positron pairs under the influence of the Coulomb field. Here we show that a new degree of freedom-the intrinsic orbital angular momentum (OAM) can be introduced into relativistic positrons when the incident photons are twisted. We developed the full-twisted scattering theory to describe the transfer of angular momentum before and after the interaction. It is found that the total angular momentum (TAM) of the photon is equally distributed among the positron and electron. For each photon TAM value, the generated leptons gain higher average OAM number when the photon spin is anti-parallel to its TAM. The impact of photon polarization on the OAM spectrum profile and the scattering probability is more significant at small photon TAM numbers, owing to the various interaction channels influenced by flipping the photon spin. Our work provides the theoretical basis to study OAM physics in particle scattering and to obtain copious relativistic vortex positrons through the Beth-Heitler process.
description: 15 pages, 4 figures
Two-Chains: High Performance Framework for Function Injection and Execution
Creators: name: Grodowitz, Megan
name: Peña, Luis E.
name: Dunham, Curtis
name: Zhong, Dong
name: Shamis, Pavel
name: Poole, Steve
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Some important problems, such as semantic graph analysis, require large-scale irregular applications composed of many coordinating tasks that operate on a shared data set so big it has to be stored on many physical devices. In these cases, it may be more efficient to dynamically choose where code runs as the applications progresses. Many programming environments provide task migration or remote function calls, but they have sharp trade-offs between flexible composition, portability, performance, and code complexity. We developed Two-Chains, a high performance framework inspired by active message communication semantics. We use the GNU Binutils, the ELF binary format, and the RDMA network protocol to provide ultra-low granularity distributed function composition at runtime in user space at HPC performance levels using C libraries. Our framework allows the direct injection of function binaries and data to a remote machine cache using the RDMA network. It interoperates seamlessly with existing C libraries using standard dynamic linking and load symbol resolution. We analyze function delivery and execution on cache stashing-enabled hardware and show that stashing decreases latency, increases message rates, and improves noise tolerance. This demonstrates one way this method is suited to increasingly network-oriented hardware architectures.
description: 11 pages, 14 figures, to be published in IEEE CLUSTER 2021
Hyposoter placidus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter placidus

description: Hyposoter placidus (DESVIGNES, 1856)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 21.ix.-5.x.
D i s t r i b u t i o n: Western Palaearctic, known from Georgia (RIEDEL et al. 2018).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Critical Accretion Rate for Triggered Star Formation
Creators: name: Hanawa, Tomoyuki
name: Soeda, Akihito
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have reexamined the similarity solution for a self-gravitating isothermal gas sphere and examined implication to star formation in a turbulent cloud. When parameters are adequately chosen, the similarity solution expresses an accreting isothermal gas sphere bounded by a spherical shock wave. The mass and radius of the sphere increases in proportion to the time, while the central density decreases in proportion to the inverse square of time. The similarity solution is specified by the accretion rate and the infall velocity. The accretion rate has an upper limit for a given infall velocity. When the accretion rate is below the upper limit, there exist a pair of similarity solutions for a given set of the accretion rate and infall velocity. One of them is confirmed to be unstable against a spherical perturbation. This means that the gas sphere collapses to initiate star formation only when the accretion rate is larger than the upper limit. We have also examined stability of the similarity solution against non-spherical perturbation. Non-spherical perturbations are found to be damped.
description: 20 pages, 7 figures, accepted for publication in the Astrophysical Journal, part 1
Hyposoter seniculus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter seniculus

description: Hyposoter seniculus (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap 4: 2♀♀ 20.iv.-5.v.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Analysis of cooperative actions in baseball pitching
Creators: name: Ohno, Shusei
name: Matsumoto, Kenta
name: Kobayashi, Hiroshi
name: Hashimoto, Takuya
Publisher: name: Loughborough University
Year: 2024

description: Engineering of Sport 15 - Proceedings from the 15th International Conference on the Engineering of Sport (ISEA 2024)
Compared to 40 years ago, motor skills of Japanese children decrease. It is thought that improving the ability to control body can lead to solve the problem of decreasing motor skills. In this study, we focused on body cooperation which is the ability to control the body and analyzed cooperative actions by using singular value decomposition (SVD). Then, we analyzed differences between experts and beginners in order to find the common movements among the experts as indicators for teaching. This paper reports the result of this study.
To probe quantum criticality with scanning tunneling spectroscopy
Creators: name: Tran, Minh-Tien
name: Kim, Ki-Seok
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the role of quantum coherence in tunneling conductance, where quantum criticality turns out to suppress Fano resonance. Based on the nonequilibrium noncrossing approximation, we show that the linear tunneling conductance exhibits weak Fano line-shape with sharp cusp at zero energy in the multichannel Kondo effect, resulting from incoherence associated with quantum criticality of impurity dynamics. In particular, shift of the peak position in the Fano resonance is predicted not to occur for the multichannel Kondo effect, distinguished from the Fermi liquid theory in the single channel Kondo effect.
Hyposoter tricoloripes
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter tricoloripes

description: Hyposoter tricoloripes (VIERECK, 1911)
M a t e r i a l e x a m i n e d: Trap 7: 1♀ 21.iv.-5.v.
D i s t r i b u t i o n: West Palaearctic, introduced into the U.S. A, known from Georgia (RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Monte Carlo simulations of biaxial molecules near a hard wall
Creators: name: Kapanowski, A.
name: Dawidowicz, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A system of optimal biaxial molecules placed at the sites of a cubic lattice is studied in an extended Lebwohl-Lasher model. Molecules interact only with their nearest neighbors through the pair potential that depends on the molecule orientations. It is known that in the homogeneous system there is a direct second-order transition from the isotropic to the biaxial nematic phase, but properties of confined systems are less known. In the present paper the lattice has periodic boundary conditions in the X and Y directions and it has two walls with planar anchoring, perpendicular to the Z direction. We have investigated the model using Monte Carlo simulations on $N_x \times N_y \times N_z$ lattices, $N_x = N_y = 10, 16$, $N_z$ from 3 to 19, with and without assuming mirror symmetry. This study is complementary to the statistical description of hard spheroplatelets near a hard wall by Kapanowski and Abram [Phys. Rev. E 89, 062503 (2014)]. The temperature dependence of the order-parameter profiles between walls is calculated for many wall separations. For large wall separations there are the surface layers with biaxial ordering at both walls (4-5 lattice constants wide) and beyond the surface layers the order parameters have values as in the homogeneous system. For small wall separations the isotropic-biaxial transition is shifted and the surface layers are thinner. Above the isotropic-biaxial transition the preferable orientations in both surface layers can be different. It is interesting that planar anchoring for biaxial molecules leads to the uniaxial interactions at the wall. As a result we get the planar Lebwohl-Lasher model with additional (biaxial) interactions with the neighbors from the second layer, where the Kosterlitz-Thouless transition is present.
description: 17 pages, 11 figures
Quantum phase diagram of a spin-1/2 antiferromagnetic chain with magnetic impurity
Creators: name: Sarkar, Sujit
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present the renormalization group (RG) flow diagram of a spin-half antiferromagnetic chain with magnetic impurity and one altered link. In this two parameters (competing interactions) model, one can find the complex phase diagram with many interesting fixed points. There is no evidence of intermediate stable fixed point in weak coupling phase. It may arise at the strong coupling phase. Depending on the strength of couplings the phases correspond either to a decoupled spin with Curie law behavior or a logarithmically diverging impurity susceptibility as in the two channel Kondo problem.
description: 4 figures
Hyposoter virginalis
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Hyposoter
Hyposoter virginalis

description: Hyposoter virginalis (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 20.iv.-5.v., 2♀♀ 5-20.v., 1♀ 15-29.vi.
D i s t r i b u t i o n: Western Palaearctic, known from Georgia (RIEDEL et al. 2018).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 76, DOI: 10.5281/zenodo.10415120
Strong-coupling expansion for the two-species Bose-Hubbard model
Creators: name: Iskin, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: To analyze the ground-state phase diagram of Bose-Bose mixtures loaded into $d$-dimensional hypercubic optical lattices, we perform a strong-coupling power-series expansion in the kinetic energy term (plus a scaling analysis) for the two-species Bose-Hubbard model with onsite boson-boson interactions. We consider both repulsive and attractive interspecies interaction, and obtain an analytical expression for the phase boundary between the incompressible Mott insulator and the compressible superfluid phase up to third order in the hoppings. In particular, we find a re-entrant quantum phase transition from paired superfluid (superfluidity of composite bosons, i.e. Bose-Bose pairs) to Mott insulator and again to a paired superfluid in all one, two and three dimensions, when the interspecies interaction is sufficiently large and attractive. We hope that some of our results could be tested with ultracold atomic systems.
description: 8 pages, 4 figures, and 2 tables (published version)