cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A LOW SYMMETRY FORM OF STRUCTURE H CLATHRATE HYDRATE
Creators: name: Ripmeester, John A.
name: Ratcliffe, Christopher I.
name: Udachin, Konstantin A.
Publisher: name: The University of British Columbia
Year: 2008

description: In this paper we report a low symmetry version of structure H hydrate that results from the hexagonal form on cooling below 167 K. Phase changes with temperature in the common clathrate hydrates structural families I, II and H have not been observed before, except in doped systems where ordering transitions take place or in the structure I hydrate of trimethylene oxide where the guest molecule dipoles are known to order. Since there is an inverse relationship between the effect of temperature and pressure on ices, it may well be that the low symmetry form reported at low temperature can also be reached by applying high pressure, and that in fact some of the observed high pressure phases are lower symmetry versions of hexagonal sH.
On products of harmonic forms
Creators: name: Kotschick, D.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53C25; 57R57, 58A14, 57R17

description: We prove that manifolds admitting a Riemannian metric for which products of harmonic forms are harmonic satisfy strong topological restrictions, some of which are akin to properties of flat manifolds. Others are more subtle, and are related to symplectic geometry and Seiberg-Witten theory. We also prove that a manifold admits a metric with harmonic forms whose product is not harmonic if and only if it is not a rational homology sphere.
description: Revised to include flatness of formal metrics on tori of arbitrary dimension
On Generalized $h$--Vectors of Rational Polytopes with a Symmetry of Prime Order
Creators: name: A'Campo-Neuen, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B20, 14M25, 14F32

description: We prove tight lower bounds for the coefficients of the generalized $h$-vector of a rational polytope with a symmetry of prime order that is fixed--point--free on the boundary. These bounds generalize results of R.~Stanley and R.~Adin for the $h$--vector of a simplicial rational polytope with a central symmetry or a symmetry of prime order respectively.
description: 10 pages, TeX, to appear in Discrete Comput. Geom
Formation of Kuiper Belt Binaries
Creators: name: Goldreich, Peter
name: Lithwick, Yoram
name: Sari, Re'em
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It appears that at least several percent of large Kuiper belt objects are members of wide binaries. Physical collisions are too infrequent to account for their formation. Collisionless gravitational interactions are more promising. These provide two channels for binary formation. In each, the initial step is the formation of a transient binary when two large bodies penetrate each other's Hill spheres. Stabilization of a transient binary requires that it lose energy. Either dynamical friction due to small bodies or the scattering of a third large body can be responsible. Our estimates favor the former, albeit by a small margin. We predict that most objects of size comparable to those currently observed in the Kuiper belt are members of multiple systems. More specifically, we derive the probability that a large body is a member of a binary with semi-major axis of order a. The probability depends upon sigma, the total surface density, Sigma, the surface density of large bodies having radius R, and theta=10^-4, the angle subtended by the solar radius as seen from the Kuiper belt. For (sigma/Sigma)R
Minimal Length Uncertainty Relation and Ultraviolet Regularisation
Creators: name: Kempf, A.
name: Mangano, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Studies in string theory and quantum gravity suggest the existence of a finite lower limit $Δx_0$ to the possible resolution of distances, at the latest on the scale of the Planck length of $10^{-35}m$. Within the framework of the euclidean path integral we explicitly show ultraviolet regularisation in field theory through this short distance structure. Both rotation and translation invariance can be preserved. An example geometry is studied in detail.
description: 24 pages, LaTeX, 3 postscript figure files included via epsf option
title: Note on aerodynamic stability problems encountered on the CF-105
Creators: name: Chamberlin, J. A.
Publisher: name: A.V. Roe Canada Limited. Aircraft Division. Technical Department
Year: 1955
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Publisher is assumed to be "A.V. Roe Canada Limited. Aircraft Division. Technical Department" by the National Research Council of Canada.
description: L'éditeur est présumé d'être « A.V. Roe Canada Limited. Aircraft Division. Technical Department » par le Conseil national de recherches du Canada.
description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Intermediate Phase in Interacting Dirac Fermions with Staggered Potential
Creators: name: Wang, Jingyao
name: Zhang, Lufeng
name: Ma, Runyu
name: Chen, Qiaoni
name: Liang, Ying
name: Ma, Tianxing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By performing exact quantum Monte Carlo simulations of a model of interacting Dirac Fermions with staggered potential, we reveal a novel intermediate phase where the electronic correlations drive a band insulator metallic, and at a larger interaction, drive the metal to Mott insulator. We also show that the Mott insulating phase is antiferromagnetic. A complete phase diagram is achieved by studying the phase transitions at large staggered potential and interaction strengths, which shows that the intermediate state is robust and occupies a large part of the phase diagram and that it should be more feasible to be detected experimentally.
description: 8 pages and 9 figures, accepted for publication in Physical Review B
title: Arrow 2. A zero length launch
Creators: name: Martin, D. L.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1958
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
title: Abstract from P/Power/66 C105 buzz threshold Pratt & Whitney J-75 Orenda Iroquois
Creators: name: McCarter, W. B.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1956
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Superconducting Qubits: Current State of Play
Creators: name: Kjaergaard, Morten
name: Schwartz, Mollie E.
name: Braumüller, Jochen
name: Krantz, Philip
name: Wang, Joel I-Jan
name: Gustavsson, Simon
name: Oliver, William D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Superconducting qubits are leading candidates in the race to build a quantum computer capable of realizing computations beyond the reach of modern supercomputers. The superconducting qubit modality has been used to demonstrate prototype algorithms in the 'noisy intermediate scale quantum' (NISQ) technology era, in which non-error-corrected qubits are used to implement quantum simulations and quantum algorithms. With the recent demonstrations of multiple high fidelity two-qubit gates as well as operations on logical qubits in extensible superconducting qubit systems, this modality also holds promise for the longer-term goal of building larger-scale error-corrected quantum computers. In this brief review, we discuss several of the recent experimental advances in qubit hardware, gate implementations, readout capabilities, early NISQ algorithm implementations, and quantum error correction using superconducting qubits. While continued work on many aspects of this technology is certainly necessary, the pace of both conceptual and technical progress in the last years has been impressive, and here we hope to convey the excitement stemming from this progress.
description: 28 pages, 4 figures
HST Proper Motion confirms the optical identification of the nearby pulsar PSR 1929+10
Creators: name: Mignani, Roberto P.
name: De Luca, Andrea
name: Caraveo, Patrizia A.
name: Becker, Werner
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the proper motion measurement of the proposed optical counterpart of the X-ray/radio pulsar PSR 1929+10. Using images obtained with the HST/STIS (average epoch 2001.73) we computed a yearly displacement of +97 +/- 1 mas yr^{-1} in RA and +46 +/- 1 mas yr^{-1} in Dec since the epoch (1994.52) of the original HST/FOC detection. Both the magnitude and direction of the optical proper motion components are found to be fully consistent with the most recent VLBA radio measurements. This result provides an unambiguous confirmation of the pulsar optical identification. In addition, we have used the combined STIS/FOC datasets to derive information on the pulsar spectrum, which seems characterized by a power law component, apparently unrelated to the X-ray emission.
description: 12 pages, 3 figures, submitted to ApJ Letters
title: Educational Inequality and Intergenerational Mobility in Latin America
title: a New Database
titleType: Subtitle
Creators: name: Neidhöfer, Guido
name: Serrano, Joaquín
name: Gasparini, Leonardo
Publisher: name: Freie Universität Berlin
Year: 2017
Subjects: subject: Inequality
subject: Intergenerational Mobility
subject: Equality of Opportunity
subject: Transition Probabilities
subject: Assortative Mating
subject: Education
subject: Human Capital
subject: Latin America
subject: 900 Geschichte und Geografie::980 Geschichte Südamerikas
subject: 300 Sozialwissenschaften::330 Wirtschaft

description: The causes and consequences of the intergenerational persistence of inequality are a topic of great interest among various fields in economics. However, until now, issues of data availability have restricted a broader and cross- national perspective on the topic. Based on rich sets of harmonized household survey data, we contribute to filling this gap computing time series for several indexes of relative and absolute intergenerational education mobility for 18 Latin American countries over 50 years, and making them publicly available. We find that intergenerational mobility has been rising in Latin America, on average. This pattern seems to be driven by the high upward mobility of children from low-educated families; at the same time, there is substantial immobility at the top of the distribution. Significant cross- country differences are observed and are associated with income inequality, poverty, economic growth, public educational expenditures and assortative mating.
title: Preliminary note on the CF-105 intake tests at Lewis LAB
Creators: name: Morris, J.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1956
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Ramsey-Milman phenomenon, Urysohn metric spaces, and extremely amenable groups
Creators: name: Pestov, Vladimir
Publisher: name: arXiv
Year: 2000
Subjects: subject: Functional Analysis (math.FA)
subject: Dynamical Systems (math.DS)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 22F05; 05C55; 28C10; 43A05; 43A07

description: In this paper we further study links between concentration of measure in topological transformation groups, existence of fixed points, and Ramsey-type theorems for metric spaces. We prove that whenever the group $\Iso(\U)$ of isometries of Urysohn's universal complete separable metric space $\mathbb U$, equipped with the compact-open topology, acts upon an arbitrary compact space, it has a fixed point. The same is true if $\U$ is replaced with any generalized Urysohn metric space $U$ that is sufficiently homogeneous. Modulo a recent theorem by Uspenskij that every topological group embeds into a topological group of the form $\Iso(U)$, our result implies that every topological group embeds into an extremely amenable group (one admitting an invariant multiplicative mean on bounded right uniformly continuous functions). By way of the proof, we show that every topological group is approximated by finite groups in a certain weak sense. Our technique also results in a new proof of the extreme amenability (fixed point on compacta property) for infinite orthogonal groups. Going in the opposite direction, we deduce some Ramsey-type theorems for metric subspaces of Hilbert spaces and for spherical metric spaces from existing results on extreme amenability of infinite unitary groups and groups of isometries of Hilbert spaces.
description: The present version includes a Corrigendum (to the proof of Th. 3.2)
title: Flora und Vegetation der Dörfer im nordöstlichen Burgenland
Creators: name: Raabe, Uwe
name: Brandes, Dietmar
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1988
Subjects: subject: 580

description: The object of this paper was to investigate and to describe the flora and the Vegetation of villages in north-eastern Burgenland (Austria). On the basis of floristical mapping of 14 villages it is possible to give Statements about the frequency of plants typical for villages. The high constancy of many species is remarkable; 88 species were to be found in at least half of the villages. The village flora of NE Burgenland is characterized by numerous continental and/or thermophilous species, whereby the part of neophytic plants is relatively high. Comparisons of village floras of other regions show — in relation to Central Europe — that there exist only a few "typical village plants". The village flora is rather different from landscape to landscape, caused especially by climatic but also edaphic and cultural-historical reasons. At the borders of the villages ruderal vegetation is developed on an extraordinary scale. 25 ruderal plant communities are documented by plant sociological relevees. Characteristic communities for the investigation area are: Atriplicetum tataricae, basal Community Carduus acanthoides- [Onopordetalia], Conietum maculati, Malvetum pusillae, Onopordetum acanthii, Panicum capülare Community, Salvio-Marrubietum peregrini and Sclerochloo-Polygonetum avicularis. The ruderal shrubberies are built up by Lycium barbarum, Sambucus nigra, Ailanthus altissima and Robinia pseudacacia.
Two's a crowd? Characterising the effect of photometric contamination on the extraction of the global asteroseismic parameter $ν_{\text{max}}$ in red-giant binaries
Creators: name: Sekaran, Sanjay
name: Johnston, Cole
name: Tkachenko, Andrew
name: Beck, Paul G.
name: Prsa, Andrej
name: Hambleton, Kelly M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Theoretical scaling relations for solar-like oscillators and red giants are widely used to estimate fundamental stellar parameters. The accuracy and precision of these relations have often been questioned in the literature, with studies often utilising binarity for model-independent validation. However, it has not been tested if the photometric effects of binarity introduce a systematic effect on the extraction of the seismic properties of the pulsating component(s). In this paper, we present an estimation of the impact of a contaminating photometric signal with a distinct background profile on the global asteroseismic parameter $ν_{\text{max}}$ through the analysis of synthetic red-giant binary light curves. We generate the pulsational and granulation parameters for single red giants with different masses, radii and effective temperatures from theoretical scaling relations and use them to simulate single red-giant light curves with the characteristics of Kepler long-cadence photometric data. These are subsequently blended together according to their light ratio to generate binary red-giant light curves of various configurations. We then perform a differential analysis to characterise the systematic effects of binarity on the extraction of $ν_{\text{max}}$. We find that the $ν_{\text{max}}$ extraction for red-giant power spectra featuring overlapping power excesses is unreliable if unconstrained priors are used. Outside of this scenario, we obtain results that are nearly identical to single-star case. We conclude that i) the photometric effects of binarity on the extraction of $ν_{\text{max}}$ are largely negligible as long as the power excesses of the individual components do not overlap, and that ii) there is minimal advantage to using more than two super-Lorentzian components to model the granulation signal of a binary red-giant.
description: 17 pages, 17 figures, accepted for publication in A&A
Effect of Communication Mode on Story Recall
Creators: Hartman, Maria C.
Publisher: name: Columbia University
Year: 2015
Subjects: Education

description: Most learning occurs in social contexts through interaction with other people. Such learning is possible only when individuals are able to communicate with understanding.  Currently, the most commonly used mode of communication for instruction in schools for the deaf in the United States is a bimodal form of signs and speech referred to as “simultaneous communication” (SIMCOM). Numerous studies have addressed the practicability of teachers’ attempts to produce this mode for instruction, but fewer have attempted to understand its impact on deaf children’s comprehension. This study examined the effect of communication mode on story recall performance in thirty-six 11- to 14-year-old deaf students. Participants were presented with a series of short stories “bimodally” (using simultaneous sign and speech/SIMCOM) and “unimodally” (using sign only) and then asked to recall whatever they could remember.
      A within-subjects analysis was used to examine the differences in recall scores as a function of communication mode. Analysis of secondary variables was included to note effects on the dependent variable. Mode of participants’ response was also coded and analyzed. Results of the study showed statistically significant differences in the mean story-retell scores between the two conditions, with participants scoring higher during the sign-only condition than in the SIMCOM condition. Age, gender, pure-tone average, type of hearing-assistive technology (hearing aids or cochlear implants), and home language did not affect overall retell scores, except that older students performed slightly better than did younger students. Standardized reading scores were strongly correlated with retell scores in both conditions, suggesting that these students had higher overall language skills. Most participants responded using a sign-only mode, and this was taken to mean that sign only was the dominant mode for these participants.
      These results provide support for the idea that for these deaf participants, simultaneously received speech and sign messages may have compromised comprehension by competing for limited attentional resources. In this study, attempts at comprehension of SIMCOM may be evidence of the redundancy principle, which states that attention is split when the same information is presented in multiple modalities. Continued research on deaf students’ ability to integrate simultaneously presented auditory and visual language is suggested.
title: Preliminary note on a method of estimating trim drag at supersonic speed
Creators: name: Morris, J.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1956
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
The Non-Relativistic Effective Field Theory Of Dark Matter-Electron Interactions
Creators: name: Krnjaic, Gordan
name: Rocha, Duncan
name: Trickle, Tanner
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Electronic excitations in atomic, molecular, and crystal targets are at the forefront of the ongoing search for light, sub-GeV dark matter (DM). In many light DM-electron interactions the energy and momentum deposited is much smaller than the electron mass, motivating a non-relativistic (NR) description of the electron. Thus, for any target, light DM-electron phenomenology relies on understanding the interactions between the DM and electron in the NR limit. In this work we derive the NR effective field theory (EFT) of general DM-electron interactions from a top-down perspective, starting from general high-energy DM-electron interaction Lagrangians. This provides an explicit connection between high-energy theories and their low-energy phenomenology in electron excitation based experiments. Furthermore, we derive Feynman rules for the DM-electron NR EFT, allowing observables to be computed diagrammatically, which can systematically explain the presence of in-medium screening effects in general DM models. We use these Feynman rules to compute absorption, scattering, and dark Thomson scattering rates for a wide variety of high-energy DM models.
description: 62 pages, 2 figures; v2 updated to match published version
Lanurgus oleae Schedl 1955
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Lanurgus
Lanurgus oleae

description: Lanurgus oleae Schedl, 1955
(Figs 2, 5, 8)
 Type material. Lectotype, female: Kenya, Londiani, 1953, JCM Gardner. Allotype, male: same data as holotype.
 Diagnosis, female. Length 2.8 mm, 2.0 × as long as wide; scapus with a long dorsal spike; pronotum 0.9 × as long as wide; elytral interstria 1–6 and 9 with at least three confused rows of erect bristle-like setae; protibiae with four apical denticles. Male similar to female, except scapus small and rounded with small tuft of setae short setae.
 Similar to L. podocarpi and L. xylographus, but stouter, especially the pronotum, and the dorsal spike on the female scapus is longer.
 Distribution. Kenya.
 Biology. Breeds under bark of Olea trunks.
description: Published as part of Jordal, Bjarte H., 2021, The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae), pp. 87-106 in Zootaxa 5027 (1) on page 91, DOI: 10.11646/zootaxa.5027.1.4, http://zenodo.org/record/5448108
The Weierstrass representation of closed surfaces in $R^3$
Creators: name: Taimanov, Iskander A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In the present paper which a sequel to dg-ga/9511005 and dg-ga//9610013 a global Weierstrass representation of an arbitrary closed oriented surface of genus $\geq 1$ in the the three-space is constructed. The Weierstrass spectrum of a torus immersed into $R^3$ is introduced and finite-zone planes as well as finite-zone solutions to the modified Novikov-Veselov equations are constructed.
description: 15 pages, LaTeX; Preprint no. 291, SFB 288, TU-Berlin
Non-linear aggregation of filters to improve image denoising
Creators: name: Guedj, Benjamin
name: Rengot, Juliette
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We introduce a novel aggregation method to efficiently perform image denoising. Preliminary filters are aggregated in a non-linear fashion, using a new metric of pixel proximity based on how the pool of filters reaches a consensus. We provide a theoretical bound to support our aggregation scheme, its numerical performance is illustrated and we show that the aggregate significantly outperforms each of the preliminary filters.
description: To appear at Computing Conference 2020
PALEO HYDRATE AND ITS ROLE IN DEEP WATER PLIO-PLEISTOCENE GAS RESERVOIRS IN KRISHNA-GODAVARI BASIN, INDIA
Creators: name: Kundu, Nishikanta
name: Pal, Nabarun
name: Sinha, Neeraj
name: Budhiraja, IL
Publisher: name: The University of British Columbia
Year: 2016

description: Discovery of natural methane hydrate in deepwater sediments in the east-coast of India have generated significant interest in recent times. This work puts forward a possible relationship of multi-TCF gas accumulation through destabilization of paleo-hydrate in Plio-Pleistocene deepwater channel sands of Krishna-Godavari basin, India. Analysis of gas in the study area establishes its biogenic nature, accumulation of which is difficult to explain using the elements of conventional petroleum system. Gas generated in sediments by methanogenesis is mostly lost to the environment, can however be retained as hydrate under suitable conditions. Longer the time a layer stayed within the gas hydrate stability zone (GHSZ) greater is the chance of retaining the gas which can be later released by change in P-T conditions due to sediment burial. P-T history for selected stratigraphic units from each well is extracted using 1-D burial history model and analyzed. Hydrate stability curves for individual units through time are generated and overlain in P-T space. It transpired that hydrate formation and destabilization in reservoir units of same stratigraphic level in different wells varies both in space and time. Presence of paleo hydrates is confirmed by the occurrence of authigenic carbonate cement and low-saline formation water. We demonstrate how gas released by hydrate destabilization in areas located at greater water depths migrates laterally and updip along the same stratigraphic level to be entrapped in reservoirs which is outside the GHSZ. In areas with isolated reservoirs with poor lateral connectivity, the released gas may remain trapped if impermeable shale is overlain before the destabilization of hydrate. The sequence of geological events which might have worked together to form this gas reservoir is: deposition of organic rich sediments → methanogenesis → gas hydrate formation → destabilization of hydrate and release of gas → migration and entrapment in reservoirs.
Eta Carinae: The physical structure of the outer ejecta and the strings
Creators: name: Weis, Kerstin
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The outer ejecta is part of the nebula around Eta Carinae. They are filamentary, shaped irregularly and larger than the Homunculus, the central bipolar nebula. While the Homuculus is mainly a reflection nebula, the outer ejecta is an emission structure. However, we showed with kinematic analysis that the outer ejecta (as the Homunculus) expands bi-directional despite of its complex morphology. Radial velocities in the outer ejecta reach up to 2000km/s and give rise to X-ray emission. An analysis showing the distribution of the soft X-ray emission and its comparison to the optical emitting gas is presented here. X-ray maxima are found in areas in which the expansion velocities are highest. The temperature of 0.65 keV determined with the CHANDRA/ACIS data and thermal equilibrium models indicates post-shock velocities of 750km/s, about what was found in the spectra. In addition analysis of the new HST-STIS data from the Strings--long, highly collimated structures in the outer ejecta--are presented. The data show that the electron density of the Strings is of the order of 10^4 cm^-3. The same value was detected for other structures in the outer ejecta. With this density String 1 has a mass of about 3 10^-4 M_sun and the total ejecta could be as massive as 0.5 M_sun.
description: 6 pages, 6 figures, presented at the ETA CARINA WORKSHOP, 10-13 July 2002, Mt. Rainier WA, see http://www.astro.washington.edu/balick/eta_conf/eta_talks_posters.html paper with images in FULL resolution at http://www.mpifr-bonn.mpg.de/staff/kweis/publications.html
title: C-105 standard aircraft characteristics with 2 JT 4A-25 engines
Creators: name: Pon, D.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1955
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Lanurgus barbatus Eggers 1920
Creators: name: Jordal, Bjarte H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Lanurgus
Lanurgus barbatus

description: Lanurgus barbatus Eggers, 1920
(Figs 13, 16, 19)
 Type material. Lectotype, female: [Botswana] Sud Afrika, D. Betschuanaland, Serule [GIS: -21.90, 27.33], 1200m, 27.XI.1906, Seiner S.G. [NHMW].
 Diagnosis, female. Length 1.9–2.4 mm, 2.3–2.4 × as long as wide. Antennal scapus with dorsal spike, on its anterior inner face with a long tuft of curved golden setae slightly longer than tarsus; frons deeply concave, setose; scutellum with bristle-like setae; elytral interstriae with narrowly spatulate setae, most setae on disc in rows, on declivity 3–5 × longer and strongly confused; protibiae with 5 or 6 lateral and apical denticles. Male similar to female except less ornamented; scapus rounded, with few setae.
 Distribution. South Africa. Botswana.
 New records. South Africa, North-West Province, Pilanesberg, ex Olea branch, 20.May.2015, J. Hulcr, leg. [ZMUB].
 Biology. Host plants include Olea and non-native Ligustrum (Oleaceae).
description: Published as part of Jordal, Bjarte H., 2021, The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae), pp. 87-106 in Zootaxa 5027 (1) on pages 92-94, DOI: 10.11646/zootaxa.5027.1.4, http://zenodo.org/record/5448108
title: Money Up Front and No Kissing
Creators: name: Cook, Ray
Publisher: name: Griffith University
Year: 2014
Subjects: subject: Gay legitimacy
subject: Camp art
subject: Cross gender in performance
subject: Cross gender in photography
subject: Gay rights in performance
subject: Gay rights movement
subject: Neoliberalism

description: In the last three decades gays have become increasingly mainstream. Gay representations are now commonplace in the popular media. Money Up Front and No Kissing asks how an interpretation of this legitimacy might be enhanced by creative practice. This study blends critical theory dialectics, practice led research methods and the elastic gay idiom of camp to situate the tacitly felt sensations that attend the phenomenon into a cognitively understood, coherent contextual framework. The study begins with Australian queer culture theorist, Dennis Altman’s 1982 observation of a ‘new homosexual’ emerging in the decade after the birth of the gay rights movement. It traces a relationship between gays and the market developing at the same time as the rise of neoliberalism’s cultural logic in which the marketplace was increasingly seen as the most effective arena to enact social decision making. Gay legitimacy is popularly framed in terms of teleological social progress but this study implicates the market in the redistribution of prejudice away from gays to provide access to resources for market expansion. A new millennial formation of gay consciousness has meant the subsidence of the generation that preceded it. This study aims to use performance and photography to shed light on the lived dimensions of that displacement as the values of the socially liberal generation that experienced the trauma of the AIDS years are supplanted by those of a new generation in tune with, and unconflicted by the ideologies and imperatives of neoliberal culture.
Improving Representation of High-frequency Components for Medical Visual Foundation Models
Creators: name: Chu, Yuetan
name: Zhang, Yilan
name: Han, Zhongyi
name: Yang, Changchun
name: Zhou, Longxi
name: Luo, Gongning
name: Huang, Chao
name: Gao, Xin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Foundation models have recently attracted significant attention for their impressive generalizability across diverse downstream tasks. However, these models are demonstrated to exhibit great limitations in representing high-frequency components and fine-grained details. In many medical imaging tasks, the precise representation of such information is crucial due to the inherently intricate anatomical structures, sub-visual features, and complex boundaries involved. Consequently, the limited representation of prevalent foundation models can result in significant performance degradation or even failure in these tasks. To address these challenges, we propose a novel pretraining strategy, named Frequency-advanced Representation Autoencoder (Frepa). Through high-frequency masking and low-frequency perturbation combined with adversarial learning, Frepa encourages the encoder to effectively represent and preserve high-frequency components in the image embeddings. Additionally, we introduce an innovative histogram-equalized image masking strategy, extending the Masked Autoencoder approach beyond ViT to other architectures such as Swin Transformer and convolutional networks. We develop Frepa across nine medical modalities and validate it on 32 downstream tasks for both 2D images and 3D volume data. Without fine-tuning, Frepa can outperform other self-supervised pretraining methods and, in some cases, even surpasses task-specific trained models. This improvement is particularly significant for tasks involving fine-grained details, such as achieving up to a +15% increase in DSC for retina vessel segmentation and a +7% increase in IoU for lung nodule detection. Further experiments quantitatively reveal that Frepa enables superior high-frequency representations and preservation in the embeddings, underscoring its potential for developing more generalized and universal medical image foundation models.
Imaging Black Holes and Jets with a VLBI Array Including Multiple Space-Based Telescopes
Creators: name: Fish, Vincent L.
name: Shea, Maura
name: Akiyama, Kazunori
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Very long baseline interferometry (VLBI) from the ground at millimeter wavelengths can resolve the black hole shadow around two supermassive black holes, Sagittarius A* and M87. The addition of modest telescopes in space would allow the combined array to produce higher-resolution, higher-fidelity images of these and other sources. This paper explores the potential benefits of adding orbital elements to the Event Horizon Telescope. We reconstruct model images using simulated data from arrays including telescopes in different orbits. We find that an array including one telescope near geostationary orbit and one in a high-inclination medium Earth or geosynchronous orbit can succesfully produce high-fidelity images capable of resolving shadows as small as 3 microarcseconds in diameter. One such key source, the Sombrero Galaxy, may be important to address questions regarding why some black holes launch powerful jets while others do not. Meanwhile, higher-resolution imaging of the substructure of M87 may clarify how jets are launched in the first place. The extra resolution provided by space VLBI will also improve studies of the collimation of jets from active galactic nuclei.
description: Accepted to the Space VLBI special issue of Advances in Space Research
title: C-105 standard aircraft characteristics with 2 P.S. 13 engines
Creators: name: Grayson, T.
name: Pon, D.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1955
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Structure of the Three-dimensional Quantum Euclidean Space
Creators: name: Cerchiai, B. L.
name: Madore, J.
name: Schraml, S.
name: Wess, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81R50; 17B37

description: As an example of a noncommutative space we discuss the quantum 3-dimensional Euclidean space $R^3_q$ together with its symmetry structure in great detail. The algebraic structure and the representation theory are clarified and discrete spectra for the coordinates are found. The q-deformed Legendre functions play a special role. A completeness relation is derived for these functions.
description: 22 pages, latex
title: Structural investigation of a 1:5.25 scale plastic model of the forward fuselage structure on the C-105 aircraft
Creators: name: Stentance, A. P.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1955
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Pair-density-wave superconductivity of faces, edges and vertices in systems with imbalanced fermions
Creators: name: Samoilenka, Albert
name: Barkman, Mats
name: Benfenati, Andrea
name: Babaev, Egor
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We describe boundary effects in superconducting systems with Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting instability, using Bogoliubov-de-Gennes and Ginzburg-Landau (GL) formalisms. First, we show that in dimensions larger than one the standard GL functional formalism for FFLO superconductors is unbounded from below. This is demonstrated by finding solutions with zero Laplacian terms near boundaries. We generalize the GL formalism for these systems by retaining higher order terms. Next, we demonstrate that a cuboid sample of a superconductor with imbalanced fermions at a mean-field level has a sequence of the phase transitions. At low temperatures it forms Larkin-Ovchinnikov state in the bulk but has a different modulation pattern close to the boundaries. When temperature is increased the first phase transition occurs when the bulk of the material becomes normal while the faces remain superconducting. The second transition occurs at higher temperature where the system retains superconductivity on the edges. The third transition is associated with the loss of edge superconductivity while retaining superconducting gap in the vertices. We obtain the same sequence of phase transition by numerically solving the Bogoliubov-de Gennes model.
description: published version
title: Structural investigation of a 3% t/c ratio multi-SPAR plastic model fin
Creators: name: Stentance, A. P.
Publisher: name: Avro Aircraft Limited (Canada). Technical Department
Year: 1955
Subjects: subject: Avro Arrow
subject: Avro Arrow
subject: Avro Canada
subject: A.V. Roe Canada
subject: Avro Canada CF-105 Arrow
subject: CF-105
subject: Canada supersonic jet
subject: avion à réaction supersonique du Canada
subject: delta-winged supersonic interceptor
subject: intercepteur supersonique à ailes delta

description: Distributed online by the National Research Council of Canada
description: Distribué en ligne par le Conseil national de recherches du Canada
Abundant molecular gas in the intergalactic medium of Stephan's Quintet
Creators: name: Lisenfeld, Ute
name: Braine, Jonathan
name: Duc, Pierre-Alain
name: Leon, Stephane
name: Charmandaris, Vassilis
name: Brinks, Elias
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stephan's Quintet (SQ) is a system consisting of at least four interacting galaxies which is well known for its complex dynamical and star formation history. It possesses a rich intergalactic medium (IGM), where hydrogen clouds, both atomic and molecular, associated with two starbursts (refered to as SQ A and B) have been found. In order to study the extent, origin and fate of the intergalactic molecular gas and its relation to the formation of stars outside galaxies and Tidal Dwarf Galaxies (TDGs), we mapped with the IRAM 30m antenna the carbon monoxide (CO) towards several regions of the IGM in SQ. In both SQ A and B, we detected unusually large amounts of molecular gas (3.1 times 10^9 msun and 7 times 10^8 msun, respectively). In contrast, no significant CO detection was achieved towards HII regions south of the pair NGC 7318a/b despite their high H alpha luminosities. The molecular gas is very extended in both SQ A and SQ B, over areas of between 15 and 25 kpc. The CO clouds seem to have otherwise different properties and may be of a different nature. The integrated CO line of SQ A is in particular much wider than in SQ B. Its CO spectrum shows emission at two velocities (6000 and 6700 km s^{-1}) that are coincident with two HI lines. The strongest emission at 6000 km s^{-1} is however spatially offset from the HI emission and situated on a ridge south-east of the starburst region. In SQ B the CO emission coincides with that of tracers of star formation (halpha, 15 mu m and radio continuum). The CO peak lies slightly offset from the HI peak towards a steep HI gradient. This is indicating that the molecular gas is forming in-situ, possibly in a region of compressed HI, with subsequent star formation. The star forming region at SQ B is the object in SQ that most resembles a TDG.
description: 12 pages, accepted by A&A, version with full resolution images available at http://www.iaa.es/~ute/sq_final.ps
title: The Relationship Between Religiosity and Sexual Misconduct
Creators: name: Eshuys, Donna Maria
Publisher: name: Griffith University
Year: 2008
Subjects: subject: religiosity
subject: sexual misconduct
subject: sexual offenders
subject: religious affiliations
subject: self-reported religious affiliations
subject: relationship between religiosity and sexual misconduct
subject: predicators of sexual misconduct
subject: religious orientation

description: This thesis presents the findings of three empirical studies which together examine relationships between religiosity and sexual misconduct. In the first study archival data from 111 incarcerated adult male sexual offenders were analysed for associations between self-reported religious affiliations and official offence histories. Four categories of religiosity were devised according to self-reported continuities and discontinuities in life-course religious affiliations: non-religious, dropouts, converts, and stayers. ANCOVAs indicated that "stayers" (those who maintained religious involvement from childhood to adulthood) had more sexual offence convictions, more victims, and younger victims, than the other groups. In contrast to the population of study one, all of whom had been convicted of sexual offences, the second study aimed to clarify whether there is also a link between religiosity and sexual misconduct within a population that has not been convicted of sexual offences. It also aimed to identify which aspects of religiosity relate to sexual misconduct. Extending the findings of the first study, study two examined associations between one aspect of religiosity, religious orientation, in conjunction with self-control, moral beliefs and self reported misconduct (including sexual misconduct) in 163 adult male university students. Participants were assigned to one of four religious orientation groups: extrinsic (n = 39); intrinsic (n = 25); indiscriminate (n = 36); and non-religious (n = 63). Participants with an intrinsic religious orientation reported higher self-control and stronger moral beliefs, and were less likely to engage in nonsexual, non-violent misconduct (illicit drug use, wilful damage and theft). Participants with an extrinsic religious orientation were found to have lower self-control and weaker moral beliefs, and were more likely to engage in sexual misconduct. Significant predictors of nonsexual misconduct were low self-control and weak moral beliefs. Significant predictors of sexual misconduct were low self-control and extrinsic religious orientation...