cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A social identity analysis of disordered eating behaviour
Creators: name: Cruwys, Tegan Llawella
Publisher: name: The Australian National University
Year: 2013
Subjects: subject: RC552.E18 C78 2013
subject: Eating disorders Psychological aspects
subject: Food habits Psychological aspects
subject: Obesity Psychological aspects

description: Across the developed world, rates of disordered eating are increasing. Formal eating disorders, unhealthy dieting and obesity have all been escalating over the last forty years. Various theoretical models have been proposed to explain this increase. Sociocultural models have drawn attention to features of the social environment, such as the cultural value placed on thinness for women (causing body dissatisfaction, and subsequently, weight-loss attempts), or the hyperavailability of energy dense foods and energy-saving technologies (causing obesity). Individualistic models have identified a variety of genetic and personality factors, such as perfectionism, low self-esteem and thin-ideal intemalisation, that increase vulnerability to disordered eating. However, these two approaches to disordered eating are currently a) incompatible, and b) unable to account for the evidence of social influence in eating behaviour. In this thesis, I propose a social identity analysis of disordered eating behaviour. This conceptualisation is able to parsimoniously incorporate previous findings by attending to the mechanism through which sociocultural phenomena are represented psychologically (via self-categorisation). Across 10 studies and 5 empirical chapters, evidence is presented for this social identity analysis. Firstly, a Dieting Intentions Scale is developed and validated in four studies, such that future dieting behaviour may be adequately measured as a dependent variable in the research. Secondly, two experiments demonstrate that the perception of shared psychological group membership is a necessary condition for social influence in eating behaviour. Thirdly, three studies show that the predictors of dieting intentions are context-dependent, and are determined by an individual's salient self-categorisations. Fourthly and finally, one experiment tests the applicability of the social identity analysis of social influence in a clinical population. The thesis has implications for social-psychological theory, in extending and testing the social identity approach, particularly in the health domain. However, it has greater implications for clinical-psychological theory, in questioning the biomedical model of eating pathology and suggesting new strategies for modifying and preventing disordered eating behaviour. Overall, this thesis provides a strong case for the relevance of the social identity approach to health generally, and eating behaviour in particular.
The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes
Creators: name: Kervella, Pierre
name: Mérand, Antoine
name: Szabados, Laszlo
name: Fouqué, Pascal
name: Bersier, David
name: Pompei, Emanuela
name: Perrin, Guy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: The bright southern Cepheid RS Pup is surrounded by a circumstellar nebula reflecting the light from the central star. The propagation of the light variations from the Cepheid inside the dusty nebula creates spectacular light echoes that can be observed up to large distances from the star itself. This phenomenon is currently unique in this class of stars. Aims: For this relatively distant star, the trigonometric parallax available from Hipparcos has a low accuracy. A careful observation of the light echoes has the potential to provide a very accurate, geometric distance to RS Pup. Methods: We obtained a series of CCD images of RS Pup with the NTT/EMMI instrument, covering the variation period of the star (P=41.4d). This allowed us to track the progression of the light wavefronts over the nebular features surrounding the star. We measured precisely the phase lag of the photometric variation in several regions of the circumstellar nebula. Results: From our phase lag measurements, we derived a geometric distance of 1992 +/- 28 pc to RS Pup. This distance is affected by a total uncertainty of 1.4%, and corresponds to a parallax of pi = 0.502 +/- 0.007 mas and a distance modulus of mu = 11.50 +/- 0.03. Conclusions: The geometric distance we derived is by far the most accurate to a Cepheid, and among the most accurate to any star. RS Pup appears both as somewhat neglected and particularly promising to investigate the mass-loss history of Cepheids. Thanks to its highly accurate distance, it is also bound to become an important luminosity fiducial for the long period part of the period-luminosity diagram.
description: 14 pages in electronic form. Astronomy and Astrophysics (2007) in press
Time-Optimal Control for High-Order Chain-of-Integrators Systems with Full State Constraints and Arbitrary Terminal States (Extended Version)
Creators: name: Wang, Yunan
name: Hu, Chuxiong
name: Li, Zeyang
name: Lin, Shize
name: He, Suqin
name: Zhu, Yu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Time-optimal control for high-order chain-of-integrators systems with full state constraints and arbitrarily given terminal states remains a challenging problem in the optimal control theory domain, yet to be resolved. To enhance further comprehension of the problem, this paper establishes a novel notation system and theoretical framework, providing the switching manifold for high-order problems in the form of switching laws. Through deriving properties of switching laws regarding signs and dimension, this paper proposes a definite condition for time-optimal control. Guided by the developed theory, a trajectory planning method named the manifold-intercept method (MIM) is developed. The proposed MIM can plan time-optimal jerk-limited trajectories with full state constraints, and can also plan near-optimal non-chattering higher-order trajectories with negligible extra motion time compared to optimal profiles. Numerical results indicate that the proposed MIM outperforms all baselines in computational time, computational accuracy, and trajectory quality by a large gap.
From Pseudostreamer Jets to CMEs: Observations of the Breakout Continuum
Creators: name: Kumar, Pankaj
name: Karpen, Judith T.
name: Antiochos, Spiro K.
name: Wyper, Peter F.
name: DeVore, C. Richard
name: Lynch, Benjamin J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-scale jets to global-scale coronal mass ejections (CMEs). The underlying multipolar topology, pre-eruption activities, and sequence of magnetic reconnection onsets (first breakout, then flare) of many observed fast CMEs/eruptive flares are fully consistent with the model. Recently, we have demonstrated that most observed coronal-hole jets in fan/spine topologies also are induced by breakout reconnection at the null point above a filament channel (with or without a filament). For these two types of eruptions occurring in similar topologies, the key question is, why do some events generate jets while others form CMEs? We focused on the initiation of eruptions in large bright points/small active regions that were located in coronal holes and clearly exhibited null-point (fan/spine) topologies: such configurations are referred to as pseudostreamers. We analyzed and compared SDO/AIA, SOHO/LASCO, and RHESSI observations of three events. Our analysis of the events revealed two new observable signatures of breakout reconnection prior to the explosive jet/CME outflows and flare onset: coronal dimming and the opening-up of field lines above the breakout current sheet. Most key properties were similar among the selected erupting structures, thereby eliminating region size, photospheric field strength, magnetic configuration, and pre-eruptive evolution as discriminating factors between jets and CMEs. We consider the factors that contribute to the different types of dynamic behavior, and conclude that the main determining factor is the ratio of the magnetic free energy associated with the filament channel compared to the energy associated with the overlying flux inside and outside the pseudostreamer dome.
description: ApJ (in press), 24 pages, 15 figures
Metal-insulator transition in Nd$_{1-x}$Eu$_{x}$NiO$_{3}$ compounds
Creators: name: Escote, M. T.
name: Barbeta, V. B.
name: Jardim, R. F.
name: Campo, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polycrystalline Nd$_{1-x}$Eu$_{x}$NiO$_3$ ($0 \leq x \leq 0.5$) compounds were synthesized in order to investigate the character of the metal-insulator (MI) phase transition in this series. Samples were prepared through the sol-gel route and subjected to heat treatments at $\sim$1000 $^\circ$C under oxygen pressures as high as 80 bar. X-ray Diffraction (XRD) and Neutron Powder Diffraction (NPD), electrical resistivity $ρ(T)$, and Magnetization $M(T)$ measurements were performed on these compounds. The results of NPD and XRD indicated that the samples crystallize in an orthorhombic distorted perovskite structure, space group $Pbnm$. The analysis of the structural parameters revealed a sudden and small expansion of $\sim$0.2% of the unit cell volume when electronic localization occurs. This expansion was attributed to a small increase of $\sim$0.003 Å of the average Ni-O distance and a simultaneous decrease of $\sim$$- 0.5^\circ$ of the Ni-O-Ni superexchange angle. The $ρ(T)$ measurements revealed a MI transition occurring at temperatures ranging from $T_{\rm MI}\sim 193$ to 336 K for samples with $x = 0$ and 0.50, respectively. These measurements also show a large thermal hysteresis in NdNiO$_{3}$ during heating and cooling processes suggesting a first-order character of the phase transition at $T_{\rm MI}$. The width of this thermal hysteresis was found to decrease appreciably for the sample Nd$_{0.7}$Eu$_{0.3}$NiO$_{3}$. The results indicate that cation disorder associated with increasing substitution of Nd by Eu is responsible for changing the first order character of the transition in NdNiO$_{3}$.
description: 19 pages, 9 figures
HBT shape analysis with q-cumulants
Creators: name: Eggers, H. C.
name: Lipa, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Taking up and extending earlier suggestions, we show how two- and threedimensional shapes of second-order HBT correlations can be described in a multivariate Edgeworth expansion around gaussian ellipsoids, with expansion coefficients, identified as the cumulants of pair momentum difference q, acting as shape parameters. Off-diagonal terms dominate both the character and magnitude of shapes. Cumulants can be measured directly and so the shape analysis has no need for fitting.
description: 8 pages, 6 figures for a total of 29 subfigs, revtex4. Typos corrected, three missing terms added, minor text changes
Hansenocaris undetermined
Creators: name: Olesen, Jørgen
name: Grygier, Mark J.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Maxillopoda
Hansenocarididae
Hansenocaris
Hansenocaris undetermined

description: Y-nauplius Type AI
Figs 2, 14G–L
Material examined
JAPAN – Okinawa, Sesoko I., laboratory pier, 26°38ʹ09.4ʺ N, 127°51ʹ55.2ʺ E • 2 LSN; 1991–2005 • 8 LSN, 6 of which molted to cyprids; 2018–2019 (Tables 1 and S1).
Description
LAST-STAGE NAUPLIUS (LSN). Lecithotrophic. Body narrowly ovate in dorso-ventral view; about 1.6 times as long as wide; lateral margins with only modest discontinuity in body outline between cephalic shield and trunk. In lateral view, trunk axis bent downwards ca 10–20° with respect to cephalic axis. Length 210–240 µm (without dorso-caudal spine), greatest width ca 120 µm, greatest dorso-ventral thickness ca 80 µm. Labrum weakly elevated, hoe-shaped in ventral view, approximately 1.2 times as long as wide; surface divided into plates by cuticular ridges; pore pattern not examined in detail but at least three pores present in midline: one anteriorly, two posteriorly. Caudal end acuminate, terminating in ca 30 µm long dorso-caudal spine usually with two or three annuli, this being upturned ca 10–20° with respect to trunk axis and accompanied ventrally by pair of furcal double-spines ca 5 µm long (i.e., each furcal spine bifid from base).
CYPRID VIEWED THROUGH CUTICLE OF LSN. Body overall weakly brownish, but telson and anterior part of cephalon distinctly darker brown. Gut-like central tube and central part of cephalon packed with yolk granules/lipid vesicles and often with orange-colored vesicle in telson. Telson sub-triangular, about as long as wide, about half as long as thorax.
Identification and variation
Easily recognizable by its overall shape and size, furcal double-spines, relatively small dorso-caudal spine and the developing cyprid’s brown telson. Variation is evident in the size of the dorso-caudal spine.
Distribution
Japan (Sesoko Island, Okinawa).
description: Published as part of Olesen, Jørgen & Grygier, Mark J., 2024, Taxonomic diversity of marine planktonic ' y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii, pp. 1-90 in European Journal of Taxonomy 929 (1) on pages 37-39, DOI: 10.5852/ejt.2024.929.2479, http://zenodo.org/record/10876286
Development, dialectic and dominion : NGO development approaches and the semi-Asiatic mode of production in Isaan and Bangkok
Creators: name: Haughton, James Kenneth
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: HB241.H38 2011
subject: Production (Economic theory)
subject: Non-governmental organizations Thailand
subject: Dialectical materialism
subject: Economic development

description: This thesis is in three parts. The first part draws upon the work of Sraffa (1960) and Gregory (1982) from the neo-Ricardian economic tradition, and Keen (l993a; 1993b) who uncovers a dialectical theory of value in Marx consistent with Sraffa's thought. This dialectical theory of value is used to reformulate the concept of modes of production within neo-Ricardian framework. In the second part, it is argued that the version of an Asiatic mode of production which many Thai scholars have argued characterised Thailand's history (Chatthip Nartsupha and Suthy Prasartset 1981;Chatthip Nartsupha 1999), is internally inconsistent. Instead, a "semi-Asiatic" or labour-short mode characterised both state and village in pre-modern central Thailand (Siam) and still provides ideological legitimacy to the Thai ruling class. As an ideology of governance, it acts to limit the discourse of development by restricting the political power and geographic and economic mobility of Thailand's lower classes. This semi-Asiatic mode explains many historical features of rural communities valorised by a significant section of Thailand's NGOand civil society movement. This part takes a multidisciplinary approach, drawing upon anthropology, archaeology, Marxist and post-Marxist economics, history and political theory to analyse the articulated, core/periphery political economy of Bangkok and North-East Thailand (Isaan). In the third part, based upon fieldwork conducted in 2002-3, case studies of three rural economic development projects supported by Thai NGOs are presented, with a focus upon their attitude towards migration and whether they meet the aspirations of their target groups and participants. It is argued that the class attitudes of the semi-Asiatic mode have remained as an elite ideology which shapes the perspective NGO projects adopt towards the residents of Isaan, particularly on the issue of migration. In resistance to this ideology, it is suggested that Thai villagers are embracing capitalist development to a much greater extent than their NGO patrons through the act of labour migration. The thesis concludes that migration between centre and periphery is a key area of class contestation in Thailand, and examines the political economy of internal migration. A postscript applies this analysis to the recent red shirt/yellow shirt clashes.
Frictionless bead packs have macroscopic friction, but no dilatancy
Creators: name: Peyneau, Pierre-Emmanuel
name: Roux, Jean-Noël
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The statement of the title is shown by numerical simulation of homogeneously sheared packings of frictionless, nearly rigid beads in the quasistatic limit. Results coincide for steady ﬂows at constant shear rate γ in the limit of small γ and static approaches, in which packings are equilibrated under growing deviator stresses. The internal friction angle ϕ, equal to 5.76 $\pm$ 0.22 degrees in simple shear, is independent on the average pressure P in the rigid limit. It is shown to stem from the ability of stable frictionless contact networks to form stress-induced anisotropic fabrics. No enduring strain localization is observed. Dissipation at the macroscopic level results from repeated network rearrangements, like the eﬀective friction of a frictionless slider on a bumpy surface. Solid fraction Φ remains equal to the random close packing value ≃ 0.64 in slowly or statically sheared systems. Fluctuations of stresses and volume are observed to regress in the large system limit, and we conclude that the same friction law for simple shear applies in the large psystem limit if normal stress or density is externally controlled. Deﬁning the inertia number as I = γ m/(aP), with m the grain mass and a its diameter, both internal friction coeﬃcient $μ$∗ = tan ϕ and volume 1/Φ increase as powers of I in the quasistatic limit of vanishing I, in which all mechanical properties are determined by contact network geometry. The microstructure of the sheared material is characterized with a suitable parametrization of the fabric tensor and measurements of connectivity and coordination numbers associated with contacts and near neighbors.
description: 19 pages. Additional technical details may be found in v1
Nobody remembers the losers : the story of Korean agricultural emigration to South America
Creators: name: Park, Hea-Jin
Publisher: name: Title page shows date as December 2013
Year: 2018

description: This year marks the fiftieth anniversary of the official Korean immigration in South America. The beginning of this vibrant overseas Korean community was humble. The first group of 17 families travelled to Brazil to work in agriculture, and more Koreans with similar intentions followed suit to Brazil and other South American countries. Contrary to popular belief, early Korean agricultural emigration to South America was mainly organised and executed by interested individuals, emigration agents, private emigration agencies and even the Catholic Church. The intervention of the Korean government at this stage was minimal; only in mid-1970s, the Korean government too threw its hat in the ring of overseas agricultural migration. The government's participation lasted only a decade, during which five rural smallholdings were established in Brazil, Argentina, Paraguay and Chile. Whether privately organised or run by the Korean government, agricultural emigration to South America is widely known as a fiasco - money and time were wasted without any substantial outcome. However, it has rarely been asked why Korea needed an overseas agricultural migration in the first instance, who were behind the project, what the project was about and what happened to the migrants. This research is about the Korean agricultural emigration to South America. In this study I present the origins, development and demise of the Korean agricultural emigration to South America between 1960s and 1980s. This work draws information not only from existing literature and government materials but also from the experience of real and ordinary people who migrated to South America through the project over the years, in a hope to give voice to those who have been forgotten for decades.
Metal-free Stoner and Mott-Hubbard magnetism in 2D polymers with honeycomb lattice
Creators: name: Yu, Hongde
name: Heine, Thomas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We computationally demonstrate Stoner-ferromagnetic half-metals and antiferromagnetic Mott-Hubbard insulators in metal-free 2D polymers. Coupling radicaloid (hetero)triangulene monomers via strong covalent bonds preserving the in-plane conjugation of the electronic π system yields 2D crystals with long-range magnetic order and magnetic couplings above the Landauer limit. Dual-site honeycomb lattices produce both flat bands and Dirac cones. Depending on the monomers, electron correlations lead to either a bandgap at the Dirac points for antiferromagnetic Mott insulators, or Stoner ferromagnetism with both spin-polarized Dirac cones and flat bands at the Fermi level. These results pioneer a new type of Stoner and Mott-Hubbard magnetism emerging in the electronic pi system of crystalline conjugated 2D polymers.
Understanding bias in facial recognition technologies
Creators: name: Leslie, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Over the past couple of years, the growing debate around automated facial recognition has reached a boiling point. As developers have continued to swiftly expand the scope of these kinds of technologies into an almost unbounded range of applications, an increasingly strident chorus of critical voices has sounded concerns about the injurious effects of the proliferation of such systems. Opponents argue that the irresponsible design and use of facial detection and recognition technologies (FDRTs) threatens to violate civil liberties, infringe on basic human rights and further entrench structural racism and systemic marginalisation. They also caution that the gradual creep of face surveillance infrastructures into every domain of lived experience may eventually eradicate the modern democratic forms of life that have long provided cherished means to individual flourishing, social solidarity and human self-creation. Defenders, by contrast, emphasise the gains in public safety, security and efficiency that digitally streamlined capacities for facial identification, identity verification and trait characterisation may bring. In this explainer, I focus on one central aspect of this debate: the role that dynamics of bias and discrimination play in the development and deployment of FDRTs. I examine how historical patterns of discrimination have made inroads into the design and implementation of FDRTs from their very earliest moments. And, I explain the ways in which the use of biased FDRTs can lead distributional and recognitional injustices. The explainer concludes with an exploration of broader ethical questions around the potential proliferation of pervasive face-based surveillance infrastructures and makes some recommendations for cultivating more responsible approaches to the development and governance of these technologies.
description: 49 pages
Scalable and Adaptively Secure Any-Trust Distributed Key Generation and All-hands Checkpointing
Creators: name: Feng, Hanwen
name: Mai, Tiancheng
name: Tang, Qiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The classical distributed key generation protocols (DKG) are resurging due to their widespread applications in blockchain. While efforts have been made to improve DKG communication, practical large-scale deployments are still yet to come due to various challenges, including the heavy computation and communication (particularly broadcast) overhead in their adversarial cases. In this paper, we propose a practical DKG for DLog-based cryptosystems, which achieves (quasi-)linear computation and communication per-node cost with the help of a common coin, even in the face of the maximal amount of Byzantine nodes. Moreover, our protocol is secure against adaptive adversaries, which can corrupt less than half of all nodes. The key to our improvements lies in delegating the most costly operations to an Any-Trust group together with a set of techniques for adaptive security. This group is randomly sampled and consists of a small number of individuals. The population only trusts that at least one member in the group is honest, without knowing which one. Moreover, we present a generic transformer that enables us to efficiently deploy a conventional distributed protocol like our DKG, even when the participants have different weights. Additionally, we introduce an extended broadcast channel based on a blockchain and data dispersal network (such as IPFS), enabling reliable broadcasting of arbitrary-size messages at the cost of constant-size blockchain storage.
description: 22 pages, 5 figures
Histoire, litterature et mythe dans Salammbo de Flaubert et La Mediterranee de Braudel
Creators: name: Bahar, Suzette
Publisher: name: University of British Columbia
Year: 2009

description: Le present travail traite de deux champs d'etude: l'histoire et le mythe litteraire. II tache de demontrer que, malgre la grande separation proclamee au XIXe siecle entre l'histoire et la litterature (car, avant le XIXe, l'histoire faisait part du domaine de la litterature) et l'annonce de l'histoire comme science epistemologique autonome au XXe, ce divorce n'a jamais vraiment eu lieu. L'itineraire du travail s'organise en fonction de cette demonstration: Le premier chapitre analyse certains textes historiques du XIXe siecle sous I'optique de quelques critiques contemporains et montre que l'ecriture de l'histoire reste toujours, en depit de la division voulue et annoncee au XIXe, sous 1'emprise de la litterature. Les deux chapitres suivants etudient le corpus du present travail: Salammbo de Flaubert, recit historique romanesque (1863) et La Mediterranee et le monde mediterranean a l'epoque de Philippe II de Braudel, ouvrage historique (1949). Je montre que dans un premier temps, ces deux livres, que tout semble opposer de prime abord, suscitent a un siecle d'intervalle une critique quasi analogue. Ensuite, par une analyse spatio-temporelle de ces deux textes, je tache de prouver qu'a cote de leur caractere historique, ils sont porteurs d'une seconde dimension qui releve du mythique. Cette dimension exprime dans les deux livres une certaine nostalgie des origines, d'ou une vision difference de I'histoire. x Si l'ecriture de I'histoire au XiXe vehicule encore, malgre la division proclamee, des relents litteraires et si deux textes historiques peuvent a la limite etre envisages dans une perspective mythique, que deviennent les oppositions binaires histoire/litterature, histoire/mythe? Cet heritage que nous legue le XIXe siecle et dont on a du mal a se defaire, est-il un leurre? Ou bien, la separation entre I'histoire et la litterature n'est-elle que le.resultat de 1'esprit taxinomique^du XIXe? Dans ce cas, que pensent et proposent les historiens contemporains et les critiques de la nouvelle poetique de I'histoire qui, tout en admettant 1'intrusion de la fiction dans l'ecriture de I'histoire, veulent quand meme preserver les categories? Voila les questions que ce travail souleve.
A deterministic-statistical approach to reconstruct moving sources using sparse partial data
Creators: name: Liu, Yanfang
name: Guo, Yukun
name: Sun, Jiguang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We consider the reconstruction of moving sources using partial measured data. A two-step deterministic-statistical approach is proposed. In the first step, an approximate direct sampling method is developed to obtain the locations of the sources at different times. Such information is coded in the priors, which is critical for the success of the Bayesian method in the second step. The well-posedness of the posterior measure is analyzed in the sense of the Hellinger distance. Both steps are based on the same physical model and use the same set of measured data. The combined approach inherits the merits of the deterministic method and Bayesian inversion as demonstrated by the numerical examples.
Perilampus falcatus Yoo and Darling 2025
Creators: name: Yoo, Jeong Jae
name: Darling, D. Christopher
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Perilampidae
Perilampus
Perilampus falcatus

description: Perilampus falcatus clade
Fig. 1, IIb; Figs 11–16
Diagnosis. This clade is recognized by a parascrobal area abruptly narrowed near the lower eye margin, 0.2–0.3× EH above lower eye margin (Figs 11I, 13I, 15I). The clypeus has a wide and broad area dorsad lacking setae which often extends ventrad along the lateral margin (Figs 11H, 13H, 15H). Male scapes have a short, pitted area covering about 0.2× the length of the scape, with pits that are sparse mesad and ventrad but dense dorsad and laterad (Figs 12G, 14G, 16F, G).
Included species. P. falcatus, P. tupa, and P. arasy.
description: Published as part of Yoo, Jeong Jae & Darling, D. Christopher, 2025, Taxonomic revision of the Perilampus carolinensis species complex (Hymenoptera: Chalcidoidea: Perilampidae), and the description of five new species, pp. 151-195 in Zootaxa 5621 (2) on page 182, DOI: 10.11646/zootaxa.5621.2.1, http://zenodo.org/record/15262606
Influence of finite quark chemical potentials on the three flavor LOFF phase of QCD
Creators: name: Casalbuoni, R.
name: Ciminale, M.
name: Gatto, R.
name: Nardulli, G.
name: Ruggieri, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study in the Ginzburg-Landau approximation, the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of QCD with three flavors and one plane wave, including terms of order O(1/mu). We show that the LOFF window is slightly enlarged, and actually splits into two different regions, one characterized by u-s and d-u pairings and the other with d-u pairs only.
description: 8 pages, 3 figures
Manuel de Falla's Homenajes Suite for Orchestra (1938-39) : a musical tribute to Claude Debussy, Paul Dukas, E.F. Arbós and Felipe Pedrell
Creators: name: Patton, David William
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Manuel de Falla
Claude Debussy
Paul Dukas
E.F. Arbós
Felipe Pedrell
Orchestra
Homenajes
Suite
Spanish Civil War

description: The objective of this paper is to examine Manuel de Falla's Homenajes Suite for Orchestra (1938-39), with the specific aim of understanding Falla's relationships to the individuals to whom the movements are dedicated. The four movements, Fanfare sobre el nombre de E.F. Arbós, A Claude Debussy: elegía de la guitarra, A Paul Dukas: Spes Vitae, and Pedrelliana, were written, as the titles suggest, to honor four different men who played significant roles in Manuel de Falla's life: E. F. Arbós (1863-1939), Claude Debussy (1862-1918), Paul Dukas (1865-1935), and Felipe Pedrell (1841-1922). It also explores the historical context during which the suite was written, and in particular, the possible influence of the Spanish Civil War upon the composition of the Homenajes Suite as a whole.
The counting version of a problem of Erdős
Creators: name: Pach, Péter Pál
name: Palincza, Richárd
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: A set $A$ of natural numbers possesses property $\mathcal{P}_h$, if there are no distinct elements $a_0,a_1,\dots ,a_h\in A$ with $a_0$ dividing the product $a_1a_2\dots a_h$. Erdős determined the maximum size of a subset of $\{1,\ldots, n\}$ possessing property $\mathcal{P}_2$. More recently, Chan, Győri and Sárközy solved the case $h=3$, finally the general case also got resolved by Chan, the maximum size is $π(n)+Θ_h(\frac{n^{2/(h+1)}}{(\log n)^{2}})$. In this note we consider the counting version of this problem and show that the number of subsets of $\{1,\ldots, n\}$ possessing property $\mathcal{P}_h$ is $T(n)\cdot e^{Θ(n^{2/3}/\log n)}$ for a certain function $T(n)\approx (3.517\dots)^{π(n)}$. For $h>2$ we prove that the number of subsets possessing property $\mathcal{P}_h$ is $T(n)\cdot e^{\sqrt{n}(1+o(1))}$. This is a rare example in which the order of magnitude of the lower order term in the exponent is also determined.
description: accepted, final version
On the robustness of high-order upwind summation-by-parts methods for nonlinear conservation laws
Creators: name: Ranocha, Hendrik
name: Winters, Andrew R.
name: Schlottke-Lakemper, Michael
name: Öffner, Philipp
name: Glaubitz, Jan
name: Gassner, Gregor J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M06, 65M20, 65M70

description: We use the framework of upwind summation-by-parts (SBP) operators developed by Mattsson (2017, doi:10.1016/j.jcp.2017.01.042) and study different flux vector splittings in this context. To do so, we introduce discontinuous-Galerkin-like interface terms for multi-block upwind SBP methods applied to nonlinear conservation laws. We investigate the behavior of the upwind SBP methods for flux vector splittings of varying complexity on Cartesian as well as unstructured curvilinear multi-block meshes. Moreover, we analyze the local linear/energy stability of these methods following Gassner, Svärd, and Hindenlang (2022, doi:10.1007/s10915-021-01720-8). Finally, we investigate the robustness of upwind SBP methods for challenging examples of shock-free flows of the compressible Euler equations such as a Kelvin-Helmholtz instability and the inviscid Taylor-Green vortex.
Local aspects of disentanglement induced by spontaneous emission
Creators: name: Jamroz, Anna
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider spontaneous emission of two two-level atoms interacting with vacuum fluctuations. We study the process of disentanglement in this system and show the possibility of changing disentanglement time by local operations.
description: 7 pages, 2 figures
Swirling the weakly bound helium dimer from inside
Creators: name: Kunitski, Maksim
name: Guan, Qingze
name: Maschkiwitz, Holger
name: Hahnenbruch, Jörg
name: Eckart, Sebastian
name: Zeller, Stefan
name: Kalinin, Anton
name: Schöffler, Markus
name: Schmidt, Lothar Ph. H.
name: Jahnke, Till
name: Blume, Dörte
name: Dörner, Reinhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Controlling the interactions between atoms with external fields opened up new branches in physics ranging from strongly correlated atomic systems to ideal Bose and Fermi gases and Efimov physics. Such control usually prepares samples that are stationary or evolve adiabatically in time. On the other hand, in molecular physics external ultrashort laser fields are employed to create anisotropic potentials that launch ultrafast rotational wave packets and align molecules in free space. Here we combine these two regimes of ultrafast times and low energies. We apply a short laser pulse to the helium dimer, a weakly bound and highly delocalized single bound state quantum system. The laser field locally tunes the interaction between two helium atoms, imparting an angular momentum of $2\hbar$ and evoking an initially confined dissociative wave packet. We record a movie of the density and phase of this wave packet as it evolves from the inside out. At large internuclear distances, where the interaction between the two helium atoms is negligible, the wave packet is essentially free. This work paves the way for future tomography of wave packet dynamics and provides the technique for studying exotic and otherwise hardly accessible quantum systems such as halo and Efimov states.
description: 4 figures, to be published in Nature Physics
Rotational dynamics of a soft filament: wrapping transition and propulsive forces
Creators: name: Coq, Naïs
name: Roure, Olivia Du
name: Marthelot, Joel
name: Bartolo, Denis
name: Fermigier, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We analyze experimentally the shape of a long elastic filament rotating in a viscous liquid. We identify a continuous but sharp transition from a straight to an helical shape, resulting from the competition between viscous stresses and elastic forces. This induced helicity generates a propulsive force along the axis of rotation. In addition, we show that the shape transition is associated with an unstable branch in the force-torque relation. A linearized model of the fluid-structure interaction is proposed to account for all the features of the non-linear filament dynamics.
From teaching mathematics to teaching teachers : a case study of one novice teacher educator's learning to support equitable practices
Creators: name: Goldberg, Ellyn Rose
name: 0009-0003-9303-548X
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Teacher education
STEM
Mathematics education
Teacher educator learning

description: This dissertation study examined how one novice mathematics teacher educator (NMTE) learned to support pre-service teachers’ (PTs’) implementation of ambitious and equitable mathematics teaching practices in the context of a seven-week summer program for undergraduates. Viewing learning through the lens of legitimate peripheral participation in a community of practice, research questions examined how and why an NMTEs practices—as evidenced through her articulation of and attention to equity, goal-setting, and teaching practices—emerged and shifted over the course of the summer. This study used case study methodology to analyze a range of data sources, primarily: 1) over 4.5 hours of audio recordings taken from three semi-structured interviews with the NMTE (pre-, mid-, and post-program); 2) over 8.5 hours of audio recordings taken from seven virtual and in-person co-planning sessions with the NMTE; 3) detailed field notes taken throughout the summer including a four-day site visit to the program; 4) over 5.5 hours of audio recordings taken from classroom observations of the NMTE’s teaching; and 5) all NMTE artifacts including planning documents and written reflections. Analysis found three overarching findings: 1) while equity was articulated prior to the program and reflected upon after, explicit attention was peripheralized during the program; 2) while the types of goals set by the NMTE remained consisted, specific goals evolved largely in response to the crisis-of-the-moment and need to prepare PTs to enter the classroom, and was supported by the curriculum and mentoring; and 3) the NMTEs practices evolved in response to emergent goals and supported by models of MTE practice, mentoring, and guided reflection. Implications for MTE training, development, research, and practice are discussed.
STP-UDGAT: Spatial-Temporal-Preference User Dimensional Graph Attention Network for Next POI Recommendation
Creators: name: Lim, Nicholas
name: Hooi, Bryan
name: Ng, See-Kiong
name: Wang, Xueou
name: Goh, Yong Liang
name: Weng, Renrong
name: Varadarajan, Jagannadan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Next Point-of-Interest (POI) recommendation is a longstanding problem across the domains of Location-Based Social Networks (LBSN) and transportation. Recent Recurrent Neural Network (RNN) based approaches learn POI-POI relationships in a local view based on independent user visit sequences. This limits the model's ability to directly connect and learn across users in a global view to recommend semantically trained POIs. In this work, we propose a Spatial-Temporal-Preference User Dimensional Graph Attention Network (STP-UDGAT), a novel explore-exploit model that concurrently exploits personalized user preferences and explores new POIs in global spatial-temporal-preference (STP) neighbourhoods, while allowing users to selectively learn from other users. In addition, we propose random walks as a masked self-attention option to leverage the STP graphs' structures and find new higher-order POI neighbours during exploration. Experimental results on six real-world datasets show that our model significantly outperforms baseline and state-of-the-art methods.
description: To appear in Proceedings of the 29th ACM International Conference on Information and Knowledge Management (CIKM), 2020
The He II Fowler lines and the O III and N III Bowen fluorescence lines in the symbiotic nova RR Tel
Creators: name: Selvelli, P.
name: Danziger, J.
name: Bonifacio, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new measure of reddening (E$_{(B-V)}$$\sim$0.00) has been obtained from the comparison between the observed and the theoretical intensity decrement for 20 emission lines of the $\ion{He}{ii}$ Fowler (n$\to$3) series. This value has been confirmed by the STIS and IUE continuum distribution, and by the value of n$_H$ from the damped profile of the IS H Ly-$α$ line. We have obtained very accurate measurements for about thirty Bowen lines of $\ion{O}{iii}$ and a precise determination of the efficiency in the O1 and O3 excitation channels (18 % and 0.7 %, respectively). The relative $\ion{O}{iii}$ intensities are in good agreement with the predictions by Froese Fischer (1994). A detailed study of the decays from all levels involved in the Bowen mechanism has lead to the detection of two new $\ion{O}{iii}$ Bowen lines near $λ$ 2190. High resolution IUE data have shown a nearly linear decline with time, from 1978 to 1995, in the efficiency of the O1 and O3 processes, with a steeper slope for the O3 channel. A detailed study of the $\ion{N}{iii}$ $λ$ 4640 lines and of their excitation mechanism has shown that, recombination and continuum fluorescence being ruled out, line fluorescence remains the only viable mechanism to pump the 3d $^2D_{5/2}$ and 3d $^2D_{3/2}$ levels of $\ion{N}{iii}$. We point out the important role of multiple scattering in the resonance lines of $\ion{O}{iii}$ and $\ion{N}{iii}$ near $λ$ 374 and show that the observed $\ion{N}{iii}$ line ratios and intensities can be explained in terms of line fluorescence by the three resonance lines of $\ion{O}{iii}$ at $λ$$λ$ 374.432, 374.162 and 374.073 under optically thick conditions.
description: Accepted version for Astronomy and Astrophysics
Using H3+ and H2D+ as probes of star-forming regions
Creators: name: van der Tak, F. F. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The H3+ and H2D+ ions are important probes of the physical and chemical conditions in regions of the interstellar medium where new stars are forming. This paper reviews how observations of these species and of heavier ions such as HCO+ and H3O+ can be used to derive chemical and kinematic properties of nearby pre-stellar cores, and the cosmic-ray ionisation rate toward more distant regions of high-mass star formation. Future prospects in the field are outlined at the end.
description: Refereed review, 6 pages, to appear in Phil. Trans. R. Soc. A
Triadic percolation induces dynamical topological patterns in higher-order networks
Creators: name: Millán, Ana P.
name: Sun, Hanlin
name: Torres, Joaquìn J.
name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2023
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Triadic interactions are higher-order interactions that occur when a set of nodes affects the interaction between two other nodes. Examples of triadic interactions are present in the brain when glia modulate the synaptic signals among neuron pairs or when interneuron axon-axonic synapses enable presynaptic inhibition and facilitation, and in ecosystems when one or more species can affect the interaction among two other species. On random graphs, triadic percolation has been recently shown to turn percolation into a fully-fledged dynamical process in which the size of the giant component undergoes a route to chaos. However, in many real cases, triadic interactions are local and occur on spatially embedded networks. Here we show that triadic interactions in spatial networks induce a very complex spatio-temporal modulation of the giant component which gives rise to triadic percolation patterns with significantly different topology. We classify the observed patterns (stripes, octopus, and small clusters) with topological data analysis and we assess their information content (entropy and complexity). Moreover, we illustrate the multistability of the dynamics of the triadic percolation patterns and we provide a comprehensive phase diagram of the model. These results open new perspectives in percolation as they demonstrate that in presence of spatial triadic interactions, the giant component can acquire a time-varying topology. Hence, this work provides a theoretical framework that can be applied to model realistic scenarios in which the giant component is time-dependent as in neuroscience.
description: 59 pages, 11 figures
Thermodynamics and linear response of a Bose-Einstein condensate of microcavity polaritons
Creators: name: Sarchi, Davide
name: Savona, Vincenzo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we derive a theory of polariton condensation based on the theory of interacting Bose particles. In particular, we describe self-consistently the linear exciton-photon coupling and the exciton-nonlinearities, by generalizing the Hartree-Fock-Popov description of BEC to the case of two coupled Bose fields at thermal equilibrium. In this way, we compute the density-dependent one-particle spectrum, the energy occupations and the phase diagram. The results quantitatively agree with the existing experimental findings. We then present the equations for the linear response of a polariton condensate and we predict the spectral response of the system to external optical or mechanical perturbations.
description: 9 pages, 4 figures