cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Columnar structures of soft spheres: Metastability and hysteresis
Creators: name: Mughal, Adil
name: Winkelmann, Jens
name: Weaire, Denis
name: Hutzler, Stefan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Previously we reported on the stable (i.e. minimal enthalpy) structures of soft monodisperse spheres in a long cylindrical channel. Here, we present further simulations, which significantly extend the original phase diagram up to D/d = 2.714 (ratio of cylinder and sphere diameters), where the nature of densest sphere packing changes. However, macroscopic systems of this kind are not confined to the ideal equilibrium states of this diagram. Consequently, we explore some of the structural transitions to be expected as experimental conditions are varied; these are in general hysteretic. We represent these transitions in a stability diagram for a representative case. Illustrative videos are included in the supplemental material.
description: Published in Phys Rev E 98, 043303 (2018) https://doi.org/10.1103/PhysRevE.98.043303
T Tauri variability in the context of the beat-frequency model
Creators: name: Smith, K. W.
name: Lewis, G. F.
name: Bonnell, I. A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the implications of a beat frequency modulated model of T Tauri accretion. In particular we show that measurements of the variability of accretion generated lines can be used in conjunction with existing photometry to obtain a measurement of the underlying photospheric and disc flux. This provides an independent way of checking spectral energy distribution modelling. In addition, we show how spectroscopy of T Tauri stars can reveal the inclination angle between the magnetic axis and the plane of the disc.
description: uuencoded compressed postscript. The preprint is also available at http://www.ast.cam.ac.uk/preprint/PrePrint.html
Eqvus caballus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Eqvus
Eqvus caballus

description: Eqvus caballus [spec. nov.]
E. cauda undique setosa. Faun. suec. 34. Syst. nat. 11.
Eqvus. Gesn. quadr. 132. Aldr. ungv. 12. Jonst. quadr. 1. t. 1. 2. 3. 4. Raj. quadr. 62.
Habitat in Europa.
Animal generosum, superbum, fortissimum in currendo, portando, trahendo, aptissimum equitando, cursu furens; sylvis delectatur; posteriora curat; cauda muscas abigit; alterum scalpit; pullum injuriae obnoxium reponit; hinnitu socium vocat; dormit post noctem; calcitrando pugnat; sudans se volutat; vegetabilia edit bove propius, semina disseminat; stercus incalescit; cystide fellea caret; non vomit; Eqvuleus Hippomane natus, pedibus elongatis; laeditur globulo auris, acicula pedis, nasi capistro, dentibus sebo illitis, Padi herba, Phellandrii Curculione. Laborat hernia mediastini, polypo cordis, orthopnoea, oestro faucium anique, scabie, tartaroque pedum, Bubone colli; Hippocomia instruitur.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 73, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Cluster Winds Blow along Supercluster Axes
Creators: name: Novikov, Dmitri
name: Melott, Adrian
name: Wilhite, Brian
name: Kaufman, Michael
name: Burns, Jack
name: Miller, Christopher
name: Batuski, David
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Within Abell galaxy clusters containing wide-angle tailed radio sources, there is evidence of a ``prevailing wind'' which directs the WAT jets. We study the alignment of WAT jets and nearby clusters to test the idea that this wind may be a fossil of drainage along large-scale supercluster axes. We also test this idea with a study of the alignment of WAT jets and supercluster axes. Statistical test neighbours indicate no alignment of WAT jets towards nearest clusters, but do indicate approximately 98% confidence in alignment with the long axis of the supercluster in which the cluster lies. We find a preferred scale for such superclusters of order 25 Mpc $h^{-1}$.
description: Latex, 5 pages, with 5 postscript figures. To be published in MNRAS. Slight revisions to coincide with journal text. Linked to color image at http://kusmos.phsx.ukans.edu/~melott/images/A2634SUW.jpg
Local B-model Yukawa couplings from A-twisted correlators
Creators: name: Honma, Yoshinori
name: Manabe, Masahide
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using the exact formula for the A-twisted correlation functions of the two dimensional $\mathcal{N}=(2,2)$ gauged linear sigma model, we reconsider the computation of the B-model Yukawa couplings of the local toric Calabi-Yau varieties. Our analysis is based on an exact result that has been evaluated from the supersymmetric localization technique and careful treatment of its application. We provide a detailed description of a procedure to investigate the local B-model Yukawa couplings and also test our prescription by comparing the results with known expressions evaluated from the local mirror symmetry approach. In particular, we find that the ambiguities of classical intersection numbers of a certain class of local toric Calabi-Yau varieties discovered previously can be interpreted as degrees of freedom of the twisted mass deformations.
description: 29 pages, 7 figures. v2: minor changes. v3: minor changes, published version
Handlungsbroschüre. Ko-Kreative Entwicklung von Lernmaterialien im Arbeitsprozess in der Fertigungsindustrie – Eine anwenderzentrierte Betrachtung
Handlungsempfehlungen zur Gestaltung von Ko-Kreationsumgebungen in Produktionsumgebungen für die Entwicklung von arbeitsprozessintegrierten Lernmaterialien
Creators: name: Weinert, Tim
name: Thiel De Gafenco, Marian
name: Billert, Matthias Simon
name: Janson, Andreas
name: Klusmeyer, Jens
name: Leimeister, Jan Marco
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: Weiterbildung
subject: Handlungsempfehlung
subject: digitale Lernsysteme
subject: arbeitsprozessbegleitende Lernmaterialien
subject: 004
subject: 370
subject: Weiterbildung
subject: E-Learning
subject: Neue Medien
subject: Lehrmittel
subject: Arbeitsprozess
subject: Entwicklung

description: Diese Broschüre ist im Rahmen des BMBF‐Projekts „Kontextsensitive Lerndienstleistungen im Arbeitsprozess der smarten industriellen Fertigung – Systematische Entwicklung und Pilotierung am Beispiel China (KoLeArn)“ entstanden. Das Projekt wird unter Projektträgerschaft des DLR (Förderkennzeichnen: 01BE17008A) durch das Bundesministerium für Bildung und Forschung (BMBF) gefördert. Die Laufzeit des Projekts ist vom 01.10.2017 – 30.06.2021.
Designing a Co-creation System for the Development of Work-process-related Learning Material in Manufacturing
Creators: name: Weinert, Tim
name: Billert, Matthias Simon
name: Thiel De Gafenco, Marian
name: Janson, Andreas
name: Leimeister, Jan Marco
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: action-design research
subject: co-creation
subject: cognitive load
subject: manufacturing
subject: situated learning material
subject: vocational education and training
subject: 004
subject: 370
subject: 670
subject: Verarbeitende Industrie
subject: Lernen
subject: Digitalisierung
subject: Kognitiver Prozess
subject: Lehrmittel
subject: Berufsbildung

description: Gefördert im Rahmen des Projekts DEAL
Influence of study population definition on the effect of age on outcomes after blunt head trauma
Creators: name: Peters, Matthew E.
name: Hsu, Michael
name: Vani Rao
name: Durga Roy
name: Narapareddy, Bharat R.
name: Bechtold, Kathleen T.
name: Sair, Haris I.
name: Meter, Timothy E. Van
name: Falk, Hayley
name: Hall, Anna J.
name: Lyketsos, Constantine G.
name: Korley, Frederick K.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Objectives: The purpose of this study was to assess whether study population definition influences the effect of age on outcomes after blunt head trauma. We hypothesized that examining ‘all comers’ receiving head computerized tomography after blunt head trauma, fewer older individuals would meet Veterans Administration and Department of Defense (VA/DoD) criteria for traumatic brain injury (TBI), and would, therefore, display better outcomes than younger cohorts. However, restricting to participants meeting VA/DoD criteria for TBI, we hypothesized that older individuals would have worse outcomes. Methods: Data from a recently completed prospective cohort study were analysed with age dichotomized at 65 years. Logistic regression modelling, controlled for potential confounders including head trauma severity, was estimated to measure the effect of age on functional recovery, post-concussion symptoms (PCS), and depressive symptoms at 1-month post-TBI. Results: Fewer older than younger individuals met VA/DoD criteria for TBI. Older individuals had better functional, PCS, and depressive outcomes at 1 month. Restricting to those meeting VA/DoD criteria for TBI, older individuals continued to have better functional and PCS outcomes but had outcomes comparable to younger on depressive symptoms. Conclusions: Contrary to our hypothesis, there was a tendency for older adults to have better outcomes than younger, independent of the diagnostic criteria applied.
Magnetic field estimation in Cyg X-3's jet
Creators: name: Ogley, R. N.
name: Burnell, S. J. Bell
name: Fender, R. P.
name: Pooley, G. G.
name: Waltman, E. B.
name: van der Klis, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Multi-wavelength photometric observations of Cygnus X-3 were carried out at 18 cm through to 450 um, complemented by X-ray (2-10 keV) observations. The system was mildly active with cm fluxes at 150 -- 250 mJy. We find the spectrum to be flat with a spectral index of zero. Using a modified Wolf-Rayet wind model, and assuming emission is generated in synchrotron emitting jets from the source, we find an upper-limit to the magentic field of 20 G at a distance of $5 \times 10^{12}$ cm is required.
description: 4 pages, 4 figures. newarcrc.sty included. To appear in 2nd Workshop of Relativistic Jets from Galactic Sources, R.N.Ogley and S.J.Bell Burnell eds, NewAR 42, in press
Culture conditions matter: how A549 morphology differs in submerged or air-liquid interface culture systems.
Creators: name: Michelini, Sara
name: Kurešepi, Ema
name: Repar, Neza
name: Šimunovič, Katarina
name: Mandić Mulec, Ines
name: Erman, Andreja
name: Drobne, Damjana
Publisher: name: Zenodo
Year: 2024

description: One of the main routes of exposure to Micro- and Nanoplastics (MNPs) is through inhalation, and studies have already reported that they can cause occupational diseases. Therefore, it is of utmost importance to test the effects of MNPs on lung models. However, since the lung is a complex environment, short-term cytotoxicity tests performed on cells grown under standard submerged settings might not be indicative of real-life hazards. For this reason, we tested the impact of different culture systems (submerged (Sub) and air-liquid interface (ALI)) on the polarisation of A549 cells towards an alveolar type II (ATII)-like phenotype to determine the best, and more realistic setup to perform our future experiments with MNPs.
Hydrodynamic Time Scales and Temporal Structure of GRBs
Creators: name: Sari, Re'em
name: Piran, Tsvi
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the hydrodynamic time scales for a spherical ultra-relativistic shell that is decelerated by the ISM and discuss the possible relations between these time scales and the observed temporal structure in $γ$-ray bursts. We suggest that the bursts' duration is related to the deceleration time, the variability is related to the ISM inhomogeneities and precursors are related to internal shocks within the shell. Good agreement can be achieved for these quantities with reasonable, not fined tuned, astrophysical parameters. The difference between Newtonian and relativistic reverse shocks may lead to the observed bimodal distribution of bursts' durations.
description: 13 pages, uuencoed including two figures. UU encoded file or postcript files can also be obtained by anonymous ftp from ftp://shemesh.fiz.huji.ac.il or from http://shemesh.fiz.huji.ac.il/ . Revised version, Accepted for Publication in the Astrophysical Journal Letters
Development of a Portable Aerosol Collector and Spectrometer (PACS)
Creators: name: Changjie Cai
name: Geb W. Thomas
name: Tianbao Yang
name: Park, Jae Hong
name: Sivaram P. Gogineni
name: Peters, Thomas M.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: 60506 Virology

description: This article presents the development of a Portable Aerosol Collector and Spectrometer (PACS), an instrument designed to measure particle number, surface area, and mass concentrations continuously and time-weighted mass concentration by composition from 10 nm to 10 µm. The PACS consists of a six-stage particle size selector, a valve system, a water condensation particle counter to detect number concentrations, and a photometer to detect mass concentrations. The stages of the selector include three impactor and two diffusion stages, which resolve particles by size and collect particles for later chemical analysis. Particle penetration by size was measured through each stage to determine actual collection performance and account for particle losses. The data inversion algorithm uses an adaptive grid-search process with a constrained linear least-square solver to fit a tri-modal (ultrafine, fine, and coarse), log-normal distribution to the input data (number and mass concentration exiting each stage). The measured 50% cutoff diameter of each stage was similar to the design. The pressure drop of each stage was sufficiently low to permit its operation with portable air pumps. Sensitivity studies were conducted to explore the influence of unknown particle density (range from 500 to 3,000 kg/m3) and shape factor (range from 1.0 to 3.0) on algorithm output. Assuming standard density spheres, the aerosol size distributions fit well with a normalized mean bias of −4.9% to 3.5%, normalized mean error of 3.3% to 27.6%, and R2 values of 0.90 to 1.00. The fitted number and mass concentration biases were within ±10% regardless of uncertainties in density and shape. However, fitted surface area concentrations were more likely to be underestimated/overestimated due to the variation in particle density and shape. The PACS represents a novel way to simultaneously assess airborne aerosol composition and concentration by number, surface area, and mass over a wide size range. Copyright © 2018 American Association for Aerosol Research
Higgs Mechanism in Nonlocal Field Theories
Creators: name: Hashi, Manami Noumi
name: Isono, Hiroshi
name: Noumi, Toshifumi
name: Shiu, Gary
name: Soler, Pablo
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study spontaneous gauge symmetry breaking and the Higgs mechanism in nonlocal field theories. Motivated by the level truncated action of string field theory, we consider a class of nonlocal field theories with an exponential factor of the d'Alembertian attached to the kinetic and mass terms. Modifications of this kind are known to make mild the UV behavior of loop diagrams and thus have been studied not only in the context of string theory but also as an alternative approach to quantum gravity. In this paper we argue that such a nonlocal theory potentially includes a ghost mode near the nonlocal scale in the particle spectrum of the symmetry broken phase. This is in sharp contrast to local field theories and would be an obstruction to making a simple nonlocal model a UV complete theory. We then discuss a possible way out by studying nonlocal theories with extra symmetries such as gauge symmetries in higher spacetime dimensions.
description: 19 pages, 4 figures; v2: references added, version published in JHEP
Balloon Bombs, the Alaska Highway, and Influenza: Tsek'ehne Perspectives on the 1943 Flu Epidemic
Creators: name: Sims, Daniel Chester Forest
Publisher: name: BC Studies: The British Columbian Quarterly
Year: 2019

description: In 1943 a flu epidemic swept through the Tsek’ehne of northern British Columbia. Historically this outbreak has been connected to the construction of the Alaska Highway and influx of settler construction crews. Yet many Tsek’ehne Elders directly connect it to the Japanese balloon bombs that fell in their traditional territory during World War II. Settler historians generally considered this bombing campaign to have started in 1944 and the disconnect between settler and Tsek’ehne histories of these bombs not only reveals how colonialism has shaped both Indigenous and non-Indigenous histories, but also how easy it is for the latter to disregard the former. Using a mixture of Tsek’ehne and settler sources, this paper examines the perspectives found in both with a particular focus on the inherent power relations and assumption found in the discipline of history. It will suggest that reconciliation requires the coming together of both histories so that settler historians can no longer dismiss Indigenous perspectives simply because they deem them unlikely.
description: BC Studies: The British Columbian Quarterly, No 203: Autumn 2019
Strong gravitational field light deflection in binary systems containing a collapsed star
Creators: name: Campana, S.
name: Parodi, A.
name: Stella, L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Large light deflection angles are produced in the strong gravitational field regions around neutron stars and black holes. In the case of binary systems, part of the photons emitted from the companion star towards the collapsed object are expected to be deflected in the direction of the earth. Based on a semi-classical approach we calculate the characteristic time delays and frequency shifts of these photons as a function of the binary orbital phase. The intensity of the strongly deflected light rays is reduced by many orders of magnitude, therefore making the observations of this phenomenon extremely difficult. Relativistic binary systems containing a radio pulsar and a collapsed object are the best available candidates for the detection of the strongly deflected photons. Based on the accurate knowledge of their orbital parameters, these systems allow to predict accurately the delays of the pulses along the highly deflected path, such that the sensitivity to very weak signals can be substantially improved through coherent summation over long time intervals. We discuss in detail the cases of PSR 1913+16 and PSR 1534+12 and find that the system geometry is far more promising for the latter. The observation of the highly deflected photons can provide a test of general relativity in an unprecedented strong field regime as well as a tight constraint on the radius of the collapsed object.
description: 7 pages, uuencoded, gzip'ed, postscript file with figures included. Accepted for pubblication in MNRAS
Eqvus asinus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Perissodactyla
Equidae
Eqvus
Eqvus asinus

description: Eqvus asinus [spec. nov.]
E. cauda extremitate setosa, cruce nigra supra humeros. Faun. suec. 35. Syst. nat. 11.
Asinus. Gesn. quadr. 40. Aldr. ung. 295. Jonst. quadr. 12. t. 6. Raj. quadr. 63.
Onager. Raj. quadr. 63. sylvestris est.
Mulus. Raj. quadr 64. ab Equa & Asino.
Hinnus. Raj. quadr. 64. ab Asina & Equo.
Solidungula mascula mammas non habent. Aristot.
Habitat. in oriente, frigoris impatiens.
Victitat spinis; tardus, stupidus, rudens, libidinosus; auriculae magnae
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on pages 73-74, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Instability of Supersonic Cold Streams Feeding Galaxies III: Kelvin-Helmholtz Instability in Three Dimensions
Creators: name: Mandelker, Nir
name: Nagai, Daisuke
name: Aung, Han
name: Dekel, Avishai
name: Padnos, Dan
name: Birnboim, Yuval
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the effects of Kelvin-Helmholtz instability (KHI) on the cold streams that feed high-redshift galaxies through their hot haloes, generalizing our earlier analyses of a 2D slab to a 3D cylinder, but still limiting our analysis to the adiabatic case with no gravity. We combine analytic modeling and numerical simulations in the linear and non-linear regimes. For subsonic or transonic streams with respect to the halo sound speed, the instability in 3D is qualitatively similar to 2D, but progresses at a faster pace. For supersonic streams, the instability grows much faster in 3D and can be qualitatively different due to azimuthal modes, which introduce a strong dependence on the initial width of the stream-background interface. Using analytic toy models and approximations supported by high-resolution simulations, we apply our idealized hydrodynamical analysis to the astrophysical scenario. The upper limit for the radius of a stream that disintegrates prior to reaching the central galaxy is ~70% larger than the 2D estimate; it is in the range (0.5-5)% of the halo virial radius, decreasing with increasing stream density and velocity. Stream disruption generates a turbulent mixing zone around the stream with velocities at the level of ~20% of the initial stream velocity. KHI can cause significant stream deceleration and energy dissipation in 3d, contrary to 2D estimates. For typical streams, up to (10-50)% of the gravitational energy gained by inflow down the dark-matter halo potential can be dissipated, capable of powering Lyman-alpha blobs if most of it is dissipated into radiation.
description: Accepted to MNRAS, updated to accepted version. Very minor changes to astrophysical conclusions, but significant additions to hydrodynamical analysis, in particular shear layer growth and bulk kinetic energy dissipation. Main astrophysical applications in sections 1 and 5-7, totaling 11 pages and 3 figures
Quasar Candidates in the Hubble Deep Field
Creators: name: Conti, Alberto
name: Kennefick, Julia D.
name: Martini, Paul
name: Osmer, Patrick S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We focus on the search for unresolved faint quasars and AGN in the crude combine images using a multicolor imaging analysis that has proven very successful in recent years. Quasar selection was carried out both in multicolor space and in "profile space," defined as the multi-parameter space formed by the radial profiles of the objects in the different images. By combining the dither frames available for each filter, we were able to obtain well-sampled radial profiles of the objects and measure their deviation from that of a stellar source. We also generated synthetic quasar spectra in the range 1.0 < z < 5.5 and computed expected quasar colors. We determined that the data are 90% complete for point sources at 26.2, 28.0, 27.8, 26.8 in the F300W, F450W, F606W and F814W filters, respectively. We find 41 compact objects in the HDF: 8 pointlike objects with colors consistent with quasars or stars, 18 stars, and 15 slightly resolved objects, 12 of which have colors consistent with quasars or stars. We estimate the upper limit of unresolved and slightly resolved quasars/AGNs with V < 27.0 and z < 3.5 to be 20 objects (16,200 per deg^2). We find good agreement among authors on the number of stars and the lack of quasar candidates with z > 3.5. We find more quasar candidates than previous work because of our more extensive modeling and use of all of the available color information. (abridged)
description: We have clarified our discussion and conclusions, added some references and removed the appendix, which is now available from the first author. 37 pages including 10 embedded postscript figures and 6 tables. To appear in the Feb. 99 issue of AJ
Momentum space approach to crossing symmetric CFT correlators
Creators: name: Isono, Hiroshi
name: Noumi, Toshifumi
name: Shiu, Gary
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a crossing symmetric basis for conformal four-point functions in momentum space by requiring consistent factorization. Just as scattering amplitudes factorize when the intermediate particle is on-shell, non-analytic parts of conformal correlators enjoy a similar factorization in momentum space. Based on this property, Polyakov, in his pioneering 1974 work, introduced a basis for conformal correlators which manifestly satisfies the crossing symmetry. He then initiated the bootstrap program by requiring its consistency with the operator product expansion. This approach is complementary to the ordinary bootstrap program, which is based on the conformal block and requires the crossing symmetry as a consistency condition of the theory. Even though Polyakov's original bootstrap approach has been revisited recently, the crossing symmetric basis has not been constructed explicitly in momentum space. In this paper we complete the construction of the crossing symmetric basis for scalar four-point functions with an intermediate operator with a general spin, by using new analytic expressions for three-point functions involving one tensor. Our new basis manifests the analytic properties of conformal correlators. Also the connected and disconnected correlators are manifestly separated, so that it will be useful for the study of large $N$ CFTs in particular.
description: 41 pages, 5 figures; v2: references added, minor changes, version published in JHEP
Influence of study population definition on the effect of age on outcomes after blunt head trauma
Creators: name: Peters, Matthew E.
name: Hsu, Michael
name: Vani Rao
name: Durga Roy
name: Narapareddy, Bharat R.
name: Bechtold, Kathleen T.
name: Sair, Haris I.
name: Meter, Timothy E. Van
name: Falk, Hayley
name: Hall, Anna J.
name: Lyketsos, Constantine G.
name: Korley, Frederick K.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Objectives: The purpose of this study was to assess whether study population definition influences the effect of age on outcomes after blunt head trauma. We hypothesized that examining ‘all comers’ receiving head computerized tomography after blunt head trauma, fewer older individuals would meet Veterans Administration and Department of Defense (VA/DoD) criteria for traumatic brain injury (TBI), and would, therefore, display better outcomes than younger cohorts. However, restricting to participants meeting VA/DoD criteria for TBI, we hypothesized that older individuals would have worse outcomes. Methods: Data from a recently completed prospective cohort study were analysed with age dichotomized at 65 years. Logistic regression modelling, controlled for potential confounders including head trauma severity, was estimated to measure the effect of age on functional recovery, post-concussion symptoms (PCS), and depressive symptoms at 1-month post-TBI. Results: Fewer older than younger individuals met VA/DoD criteria for TBI. Older individuals had better functional, PCS, and depressive outcomes at 1 month. Restricting to those meeting VA/DoD criteria for TBI, older individuals continued to have better functional and PCS outcomes but had outcomes comparable to younger on depressive symptoms. Conclusions: Contrary to our hypothesis, there was a tendency for older adults to have better outcomes than younger, independent of the diagnostic criteria applied.
A Search for Ultra-High Energy Counterparts to Gamma-Ray Bursts
Creators: name: Plunkett, S. P.
name: Delaney, M.
name: McBreen, B.
name: Hurley, K. J.
name: O'Sullivan, C. T.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A small air shower array operating over many years has been used to search for ultra-high energy (UHE) gamma radiation ($\geq 50$ TeV) associated with gamma-ray bursts (GRBs) detected by the BATSE instrument on the Compton Gamma-Ray Observatory (CGRO). Upper limits for a one minute interval after each burst are presented for seven GRBs located with zenith angles $θ< 20^{\circ}$. A $4.3σ$ excess over background was observed between 10 and 20 minutes following the onset of a GRB on 11 May 1991. The confidence level that this is due to a real effect and not a background fluctuation is 99.8\%. If this effect is real then cosmological models are excluded for this burst because of absorption of UHE gamma rays by the intergalactic radiation fields.
description: 4 pages LaTeX with one postscript figure. This version does not use kluwer.sty and will allow automatic postscript generation
Charged lepton flavor violation in extended BLMSSM
Creators: name: Dong, Xing-Xing
name: Zhao, Shu-Min
name: Zhang, Hai-Bin
name: Feng, Tai-Fu
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the extended BLMSSM, the exotic Higgs superfields $(Φ_{NL},φ_{NL})$ are added to make the exotic leptons heavy, and the superfields ($Y$,$Y^\prime$) are also introduced to make exotic leptons unstable. This new model is named as the EBLMSSM. We study some charged lepton flavor violating (CLFV) processes in detail in the EBLMSSM, including $l_j\rightarrow l_i γ$, muon conversion to electron in nuclei, the $τ$ decays and $h^0\rightarrow l_i l_j$. Being different from BLMSSM, some particles are redefined in this new model, such as slepton, sneutrino, exotic lepton (neutrino), exotic slepton (sneutrino) and lepton neutralino. We also introduce the mass matrices of superfields $Y$ and spinor $\tilde{Y}$ in the EBLMSSM. All of these lead to new contributions to the CLFV processes. In the suitable parameter space, we obtain the reasonable numerical results. The results of this work will encourage physicists to explore new physics beyond the SM.
Remarks on the "New Redshift Interpretation"
Creators: name: Carlip, S.
name: Scranton, R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a recent article in {\em Modern Physics Letters} {\bf A}, Gentry proposed a new static cosmological model that seeks to explain the Hubble relation as a combination of gravitational and Doppler red shifts. We show that Gentry's model, although supposedly based on general relativity, is inconsistent with the Einstein field equations; that it requires delicate fine tuning of initial conditions; that it is highly unstable, both gravitationally and thermodynamically; and that its predictions disagree clearly with observation.
description: 11 pages, LaTeX, no figures; new title and minor changes
Room on Wheels: Speculating on a relationship between private space and people
Creators: name: Shon, Jisoo
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 120304 Digital and Interaction Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Room is a unit of society, and each household provides parameters to understand urban living. It highlights the current issues by claiming people’s needs and deals with social expectations to protect an individual’s originality. Due to technological development, individuals perceive theirrooms as a medium to fulfill their desires. However, the way we choose, enter, live, and move from this space has not changed for decades, treated as a universal norm of living space. On the other hand, we detect some sociocultural and technological shifts in the core of the space and surroundings. Given these turbulent role expectations, it is time for us to speculate on this physical space, where we spend most of our time and tend to project our existence.My thesis starts from an open-ended question of a new relationship between people and private space, believing that home is more than a just means of living. First, it employs exploratory and generative research methods to scoping the project, then it examines the intersection between the most mundane place and emerging urban technology through genuine speculation to stimulate discussion about the current world. The result is rehearsing the future of the room by hypothesizing a mobile home andfictional organization. Besides, designed artifacts reveal the possible future scenarios and depict an individual’s daily life interacting with their companion-like moving residence.
Presentation of the French National Chapter at the CoARA National Chapters Exchange Forum 2024
Creators: name: BORGET, Fabien
Publisher: name: Zenodo
Year: 2024

description: Slides presented at the CoARA National Chapters Exchange Forum 2024.  A description of the event is available here: https://coara.eu/news/building-a-stronger-network-coara-national-chapters-convene-for-a-first-exchange-forum/.
The Dynamical Properties of Stellar Systems in the Galactic Disc
Creators: name: Kroupa, Pavel
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We postulate that most stars are born in aggregates of binary systems which are dynamically equivalent to the `dominant mode cluster'. The initial binary orbits are consitent with pre-main sequence data. Stellar masses are paired at random from the KTG(1.3) mass function. We develop a simple model which establishes the observed correlations between eccentricity, mass ratio and period. Stimulated evolution of orbital parameters within the cluster places a few per cent of all orbits into the eigenevolution region of the eccentricity- period diagram. Observations should reveal the odd binary with eccentric orbits at periods smaller than the circularisation cutoff period. We show that the birth eccentricity distribution must be approximately dynamically relaxed because stimulated evolution in the dominant mode cluster cannot sufficiently thermalise a significantly different distribution. After disintegration of the dominant mode cluster we have a proportion of binaries which compares favourably with the observed proportion. The shape of the period distribution agrees well with the observed distribution. The mass-ratio distribution of G dwarf binaries is depleted at small mass ratios and has the shape of the main sequence distribution. We predict and tabulate the mass ratio distribution for main sequence binaries with a primary star less massive than $1.1\,M_\odot$. Our model Galactic field stellar population has a binary proportion among G-, K- and M-dwarfs in good agreement with the observational data. Too few triple and quadruple systems form by capture to account for the number of observed systems. We compare the specific angular momentum distribution of our initial binary star population with the observed distribution of specific angular momenta of molecular cloud cores.
description: MNRAS (in press), 18 pages, plain TeX, figures available via FAX or air-mail
CROP—LIVESTOCK FARMING SYSTEMS IN THE SEMIARID ZONE OF SUB-SAHARAN AFRICA Ordering diversity and understanding change
Creators: name: Mortimore, Michael
name: Turner, Beryl
name: Mortimore, Michael
name: Turner, Beryl
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
Environmental Economics and Policy
Livestock Production/Industries

description: A typology of mixed fanning systems in the semi-arid zone of sub-Saharan Africa is needed to (1) order diversity, (2) assist development interventions and technical recommendations, and (3) provide a framework for monitoring change, both economic and environmental. A review of the available typological principles suggests that a scheme based on intensification and crop-livestock integration has both theoretical and practical value. The scheme is applied to a sample (43) of fanning systems, for which published characterizations are available. Measures of association between population densities, livestock densities, intensity ratings and crop-livestock integration ratings support the hypothesis that these variables are functionally and consistently related, though not all associations are statistically significant. The scheme proposed cannot be used to predict environmental degradation, which is determined in part by interactions with exogenous variables. But it does provide a robust framework for understanding the time-trajectories of farming systems along degradational or conservationary pathways.
Physics of Eclipsing Binaries. III. Spin-Orbit Misalignment
Creators: name: Horvat, Martin
name: Conroy, Kyle E.
name: Pablo, Herbert
name: Hambleton, Kelly M.
name: Kochoska, Angela
name: Giammarco, Joseph
name: Prša, Andrej
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Binary systems where the axis of rotation (spin) of one or both components is tilted w.r.t. the axis of revolution are called misaligned binary systems. The angle of misalignment, obliquity, has been measured for a handful of stars and extrasolar planets to date. Here we present a mathematical framework for a complete and rigorous treatment of misalignment and introduce an extension to the public PHOEBE code that implements this framework. We discuss misalignment for the Roche geometry and introduce methods for computing stellar shapes, equilibrium (generalized Lagrange) points of the potential and minimal requirements for lobe existence. Efficient parametrization of misalignment is proposed in the plane-of-sky coordinates and implementation details in PHOEBE are given alongside the proof-of-concept toy model, comparison with a known misaligned binary DI Her, and comparison with a misaligned planetary system Kepler-13. We provide important mathematical details of the model in the Appendix. This paper accompanies the release of PHOEBE 2.1, which will be available soon from its website http://phoebe-project.org.
description: 20 pages, 10 figures, published in ApJS; release of PHOEBE 2.1 is available at http://phoebe-project.org
Time and temperature sensitivity of the Hybrid III neck
Creators: name: Schmidt, Allison L.
name: Ortiz-Paparoni, Maria A.
name: Shridharani, Jay K.
name: Nightingale, Roger W.
name: Bass, Cameron R.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: The Hybrid III (HIII) dummy is one of the most widely used anthropomorphic test devices (ATDs) in the world, and researchers have found a variety of uses for it outside of its original purpose as an automotive crash test dummy. These expanded roles have introduced situations outside the dummy’s original design parameters, where a number of tests must be run in relatively rapid succession or where it may not be possible to control the temperature of the test environment. Objective: This study has 2 aims. The first is to determine how the duration of the time interval between tests affects the axial compression performance of the HIII neck. The second is to quantify the effect of temperature on the neck’s compressive stiffness through a range of temperatures relevant to indoor or outdoor testing. Methods: To characterize the effects of different test conditions, a series of high-rate axial compressive tests was run on a 50th percentile male HIII neck component in a materials testing machine. Between-test recovery intervals were varied from 2 h to 1 min, and temperature conditions of 0, 12.5, 25, and 37.5 °C were tested. Results: Though the duration of the recovery interval had little impact on the recorded force (less than 1%), the component did exhibit considerable strain creep over the course of the test. Temperature had a strong influence on the compressive stiffness of the component. Compared to the stiffness at 25 °C (near room temperature), the stiffness of the neck at 37.5 °C fell by 15%; at 0 °C, the stiffness more than doubled. Conclusions: This study demonstrates that though the duration of the recovery interval between tests has a small influence on neck stiffness, temperature effects should not be overlooked because they influence neck compressive stiffness considerably. The relationship between recorded force and temperature is well represented by exponential decay models. These findings highlight the importance of monitoring and controlling for temperature effects during all HIII testing.
Space-group theory of photonic bands
Creators: name: Watanabe, Haruki
name: Lu, Ling
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The wide-range application of photonic crystals and metamaterials benefits from the enormous design space of three-dimensional sub-wavelength structures. In this work, we study the space group constraints on photonic dispersions for all 230 space groups with time-reversal symmetry. Our theory carefully treats the unique singular point of photonic bands at zero frequency and momentum, which distinguishes photonic bands from their electronic counterpart. The results are given in terms of minimal band connectivities at zero~($M$) and non-zero frequencies~($M'$). Topological band degeneracies are guaranteed to be found in space groups that do not allow band gaps between the second and third photonic bands~($M>2$). Our work provides theoretical guidelines for the choice of spatial symmetries in photonics design.
description: 5+12 pages; v2: minor edits throughout the paper
Assessment of soil contamination caused by underground fuel leakage from selected gas stations in Riyadh, Saudi Arabia
Creators: name: Alharbi, Badr Hadhidh
name: Pasha, Mohammad Jahangir
name: Abdulrahman Hussein Alhudhodi
name: Alduwais, Abdulilah Khalid
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy

description: Spills and leakage from underground fuel storage tanks (UFSTs) can potentially contaminate soil and groundwater and pose harmful effects to public health and the environment. This study evaluated the feasibility of using volatile organic compounds (VOCs), total petroleum hydrocarbons (TPHs), electrical conductivity (EC), and pH to examine the contamination caused by leaking UFSTs. Screening water assessments for VOCs and general water quality parameters were conducted on the premises of 53 gas stations in Riyadh, Saudi Arabia, to identify potentially contaminated sites, and 25 ground bores were drilled for the quantification of TPH concentrations, EC, and pH values in 407 soil samples. The experimental approach followed in this study included geochemical analyses based on borehole drilling at five targeted gas stations, analyses of water samples from underground storage reservoirs, and analyses of soil core samples obtained from different depths to determine the degree of TPH contamination. Thirty-five VOCs were identified in the water samples collected from gas stations. Methylene chloride, tribromomethane, toluene, chlorobenzene, dibromochloromethane, and benzene were frequently encountered in most of the water samples. Some of these samples exceeded the World Health Organization and Saudi Arabian guidelines for acceptable levels of pH, total dissolved solids, chloride, nitrate, sulfate, calcium, and total hardness. The measured TPH levels were clearly indicative of subsoil contamination and subsequent accumulation in soil over time, particularly at depths of 1–6 m; there was not a noticeable dependence or impact on pH.
The Luminosity Distance, the Equation of State, and the Geometry of the Universe
Creators: name: Chiba, Takeshi
name: Nakamura, Takashi
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The second derivative of the luminosity distance with respect to the redshift is written in terms of the deceleration parameter $q_0$. We point out that the third derivative contains the information regarding the sound speed of cosmic matter as well as the curvature of the universe. We restrict physically possible parameter ranges of the coefficients. It is found that there is a relation between the coefficients in a flat universe model with matter such that $c_{s0}(1+w_{\rm x0})=0$ ($c_{s0}$ is the total sound speed of the matter component and $w_{\rm x0}$=$p_{\rm x0}/ρ_{\rm x0}$).
description: 5 pages + 1 figure, one reference added, Prog.Theor.Phys. in press