cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Canadian universities : a functional analysis
Creators: name: Humphries, Donna Irene Nisbet
Publisher: name: University of British Columbia
Year: 2010

description: This thesis identifies a university's typical administrative structure for the purpose of establishing a framework which working university archivists can use to acquire control of university records. The organizational structure of Canadian universities is examined with respect to their functions, juridical persons, and their relative competences. This study may be defined as a "functional analysis." The intertwined concepts of function, competence, and juridical persons serve as foundations for this thesis. A function is defined as the whole of the activities, considered abstractly, necessary to accomplish one purpose. A competence is the authority to carry out a determined sphere of activities within one function. Such authority, however, has to be delegated or assigned to a given office or individual, and that office or individual is termed a juridical person. Therefore, a link is forged between a function and a competence through a juridical person, because it is a juridical person who carries out certain duties and responsibilities within a specified function. Since juridical persons create records in the course of executing their competence, a functional analysis establishes the provenance of the records and places the records of an administrative body in the context of their creation. A functional analysis also reveals and explains the relationships and bonds between the records, record series, and record groups that comprise an administration's archival residue. These objectives -- understanding the organizational structure of the administrative body, identifying its functions, determining the provenance of its records, and placing records in the context of the activities that generate them — help archivists and records managers acquire a fundamental level of intellectual control over the administrative body's records. Without this knowledge, archivists and records managers cannot proceed with any of their own practices. By studying the history and development of universities from the Middles Ages to the twentieth century, this thesis identifies four functions which are common to all universities: Sustaining Itself, Teaching, Research, and Service to the Community. A number of juridical persons, either in the form of administrative bodies or individuals who comprise the administrative structure of the university, are then examined, and the functions with which with they are entrusted are ascertained by studying their competences. As a result of this analysis, the typical organizational structure of a university is revealed, the functional provenance of records created by universities (as a whole) are identified, and its records are placed in the context of the activities that generate them.
Quantization in black hole backgrounds
Creators: name: Giddings, Steven B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quantum field theory in a semiclassical background can be derived as an approximation to quantum gravity from a weak-coupling expansion in the inverse Planck mass. Such an expansion is studied for evolution on "nice-slices" in the spacetime describing a black hole of mass M. Arguments for a breakdown of this expansion are presented, due to significant gravitational coupling between fluctuations, which is consistent with the statement that existing calculations of information loss in black holes are not reliable. For a given fluctuation, the coupling to subsequent fluctuations becomes of order unity by a time of order M^3. Lack of a systematic derivation of the weakly-coupled/semiclassical approximation would indicate a role for the non-perturbative dynamics of gravity, and possibly for the proposal that such dynamics has an essentially non-local quality.
description: 28 pages, 4 figures, harvmac. v2: added refs, minor clarifications
title: Психология управления в деятельности правоохранительных органов
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2024

description: В учебном пособии рассматриваются принципы и методы психологической науки в сфере управления сотрудниками и подразделениями правоохранительных органов. Материалы пособия способствуют формированию психологической управленческой культуры, позволяющей руководителю эффективно осуществлять организационно-управленческую деятельность в профессиональной сфере. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Предназначено для студентов, обучающихся по укрупненной группе специальностей и направлений подготовки высшего образования «Юриспруденция», изучающих дисциплину «Психология управления в деятельности правоохранительных органов», а также для специалистов профильных подразделений органов внутренних дел и иных правоохранительных органов.
การศึกษาพฤติกรรมการอบแห้งและการประเมินค่าสีของพริกที่อบแห้งภายในตู้อบแห้งแบบหลายชั้นด้วยเทคนิคการประมวลผลภาพ
Creators: name: ศุษมา โชคเพิ่มพูน
name: สุริยา โชคเพิ่มพูน
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: การเปลี่ยนแปลงสี
การประมวลผลภาพ
การอบแห้งพริก
พฤติกรรมการอบแห้ง

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 27, 4, 764-775
Ion kinetic effects and instabilities in the plasma flow in the magnetic mirror
Creators: name: Jimenez, Marilyn
name: Smolyakov, Andrei
name: Chapurin, Oleksandr
name: Yushmanov, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Kinetic effects in plasma flow due to a finite ion temperature and ion reflections in a converging-diverging magnetic nozzle are investigated with collisionless quasineutral hybrid simulations with kinetic ions and isothermal Boltzmann electrons. It is shown that in the cold ions limit the velocity profile of the particles agrees well with the analytical theory predicting the formation of the global accelerating potential due to the magnetic mirror with the maximum of the magnetic field and resulting in the transonic ion velocity profile. The global transonic ion velocity profile is also obtained for warm ions with isotropic and anisotropic distributions. Partial ion reflections are observed due to a combined effect of the magnetic mirror and time-dependent fluctuations of the potential as a result of the wave breaking and instabilities in the regions when the fluid solutions become multi-valued. Despite partial reflections, the flow of the passing ions still follows the global accelerating profile defined by the magnetic field profile. In simulations with reflecting boundary conditions imitating the plasma source and allowing the transitions between trapped and passing ions, the global nature of the transonic accelerating solution is revealed as a constraint on the plasma exhaust velocity that ultimately defines plasma density in the source region.
Decay of heavy Majorana neutrinos using the full Boltzmann equation including its implications for leptogenesis
Creators: name: Basboll, Anders
name: Hannestad, Steen
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have studied the two-body production and decay of a heavy, right-handed neutrino to two light states using the full Boltzmann equation instead of the usual integrated Boltzmann equation which assumes kinetic equilibrium of all species. Decays and inverse decays are inefficient for thermalising the distribution function of the heavy neutrino and in some parameter ranges there can be very large deviations from kinetic equilibrium. This leads to substantial numerical differences between the two approaches. Furthermore we study the impact of this difference on the lepton asymmetry production during leptogenesis and find that in the strong washout regime the final asymmetry is changed by 15-30% when the full Boltzmann equation is used.
description: 11 pages, 6 figures, minor changes
Ultrasound promoted green synthesis, anticancer evaluation, and molecular docking studies of hydrazines: a pilot trial
Creators: name: Ali, Amena
name: Ali, Abuzer
name: Tahir, Abu
name: Bakht, Mohammed Afroz
name: Ahsan, Mohamed Jawed
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: We reported herein an efficient, environmentally friendly synthesis of hydrazine carboxamides (6a–l) in a water-glycerol (6:4) solvent system using ultrasonic irradiation. Ultrasonicated reactions were found to be much faster and more productive than conventional synthesis. The prepared compounds (6a–l) were tested against nine panels of 60 cancer cell lines according to the National Cancer Institute (NCI US) protocol. N-(4-Chlorophenyl)-2-(2-oxoindolin-3-ylidene)hydrazine-1-carboxamide (6b) was discovered to be promising anticancer agents with higher sensitivity against CCRF-CEM, HOP-92, UO-31, RMPI-8226, HL-60(TB), and MDA-MB-468 with percent growth inhibitions (%GIs) of 143.44, 33.46, 33.21, 33.09, 29.81, and 29.55 respectively. Compounds (6a–l) tested showed greater anticancer activity than Imatinib, except for compound 6k. Compounds 6b and 6c were found to be lethal on the CCRF-CEM leukaemia cell line, with %GIs of 143.44 and 108.91, respectively. Furthermore, molecular docking analysis was performed to investigate ligand binding affinity at the active site of epidermal growth factor (EGFR).
Highly Polarized Optically-Selected BL Lacertae Objects
Creators: name: Smith, Paul S.
name: Williams, G. Grant
name: Schmidt, Gary D.
name: Diamond-Stanic, Aleksandar M.
name: Means, Dennis L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of candidate BL Lacertae objects spectroscopically selected from the Sloan Digital Sky Survey (SDSS) reveal a large fraction with high polarization (P > 3%). This result confirms that synchrotron radiation makes an important contribution to the observed optical continuum for most objects in the sample. The SDSS sample can be divided into separate categories, with objects of undetermined redshift generally having the highest optical polarization. Polarization as high as 23% and the lack of spectral features suggests that the synchrotron continuum completely dominates the spectra of these sources. The mean polarization levels observed for objects having measured redshifts is much lower, with the maximum observed polarization for this group being ~10%. The lower polarizations of these objects are reminiscent of the less spectacular polarization levels shown by BL Lac objects discovered in X-ray surveys. We find no SDSS BL Lac candidates at z > 1 with P > 3%, calling their classification as BL Lac objects into question. In addition, the existence of radio-quiet BL Lac objects is not verified since none of 10 potentially radio-weak BL Lac candidates observed are highly polarized. Regardless of whether the high-redshift and radio-weak objects are included in this optical sample, the overall levels of polarization observed are intermediate between those seen for X-ray and radio-selected BL Lac objects.
description: 9 pages, 3 figures, 2 tables
Supplementary document for Detection of Urea in Milk by Urease Assisted pH Sensitive Carbon Dots - 5514601.pdf
Creators: name: yin, wenzhi
name: ZHANG, YE
name: Gu, Jiao
name: Wang, Tingyu
name: Ma, Chaoqun
name: Zhu, Chun
name: Li, Lei
name: Yang, Zichen
name: zhu, tuo
name: Chen, Guoqing
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Supplemental Document
Meta-Stable Brane Configurations, Multiple NS5-Branes, and Rotated D6-Branes
Creators: name: Ahn, Changhyun
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the type IIA nonsupersymmetric meta-stable brane configurations corresponding to the various N=1 supersymmetric gauge theories. The D6-branes are both displaced and rotated where these deformations are described as the mass term and quartic term for the fundamental flavors respectively. The multiplicity of the NS5-branes occurs in the superpotential order for adjoint, symmetric, or bifundamental matters. A rich pattern of nonsupersymmetric meta-stable states as well as the supersymmetric stable states is found.
description: 58 pp, 22 figures; Eq. (4.2) corrected and footnote added; redundant parts removed and to appear in IJMPA
The muon abundance in the primordial Universe
Creators: name: Rafelski, Jan
name: Yang, Cheng Tao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Muon abundance is required for the understanding of several fundamental questions regarding properties of the primordial Universe. In this paper we evaluate the production and decay rates of muons in the cosmic plasma as a function of temperature. This allows us to determine when exactly the muon abundance disappears. When the Universe cools below the temperature $kT_\mathrm{disappear}\approx 4.135$ MeV the muon decay rate overwhelms production rates and muons vanish quasi-instantaneously from the Universe. Interestingly, we show that at $T_\mathrm{disappear}$ the muon number is nearly equal to baryon abundance.
description: 10 pages APPB, 3 figures, Prepared for the 60th anniversary of the Cracow School of Theoretical Physics; v2 in press: typos corrected and computational details improved
uvbyCa H beta CCD Photometry of Clusters. VII. The Intermediate-Age Anticenter Cluster Melotte 71
Creators: name: Twarog, B. A.
name: Corder, S.
name: Anthony-Twarog, B. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: CCD photometry on the intermediate-band uvbyCa H beta system is presented for the anticenter, intermediate-age open cluster, Melotte 71. Restricting the data to probable single members of the cluster using the color-magnitude diagram and the photometric indices alone generates a sample of 48 F dwarfs on the unevolved main sequence. The average E(b-y) = 0.148 +/- 0.003 (s.e.m.) or E(B-V) = 0.202 +/- 0.004 (s.e.m.), where the errors refer to internal errors alone. With this reddening, [Fe/H] is derived from both m1 and hk, using H beta and b-y as the temperature index, with excellent agreement among the four approaches and a final weighted average of [Fe/H] = -0.17 +/- 0.02 (s.e.m.) for the cluster, on a scale where the Hyades has [Fe/H] = +0.12. When adjusted for the higher reddening estimate, the previous metallicity estimates from Washington photometry and from spectroscopy are now in agreement with the intermediate-band result. From comparisons to isochrones of appropriate metallicity, the cluster age and distance are determined as 0.9 +/- 0.1 Gyr and (m-M) = 12.2 +/- 0.1 or (m-M)_0 = 11.6 +/- 0.1. At this distance from the sun, Mel 71 has a galactocentric distance of 10.0 kpc on a scale where the sun is 8.5 kpc from the galactic center. Based upon its age, distance, and elemental abundances, Mel 71 appears to be a less populous analog to NGC 3960.
description: Accepted for Astronomical Journal. 38 page latex file includes 11 figures and short version of data table. Full table will appear in online AJ or may be requested from authors
Ultracompact Generation of Continuous-Variable Cluster States
Creators: name: Menicucci, Nicolas C.
name: Flammia, Steven T.
name: Zaidi, Hussain
name: Pfister, Olivier
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an experimental scheme that has the potential for large-scale realization of continuous-variable (CV) cluster states for universal quantum computation. We do this by mapping CV cluster-state graphs onto two-mode squeezing graphs, which can be engineered into a single optical parametric oscillator (OPO). The desired CV cluster state is produced directly from a joint squeezing operation on the vacuum using a multi-frequency pump beam. This method has potential for ultracompact experimental implementation. As an illustration, we detail an experimental proposal for creating a four-mode square CV cluster state with a single OPO.
description: 4 pages, 1 figure; v2 improved discussion of the implications of our result; added discussion of finite squeezing effects
No realistic wormholes from ghost-free scalar-tensor phantom dark energy
Creators: name: Bronnikov, Kirill A.
name: Starobinsky, Alexei A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is proved that no wormholes can be formed in viable scalar-tensor models of dark energy admitting its phantom-like ($w < -1$) behaviour in cosmology, even in the presence of electric or magnetic fields, if the non-minimal coupling function $f(Φ)$ is everywhere positive and the scalar field $Φ$ itself is not a ghost. Some special static, spherically symmetric wormhole solutions may exist if $f(Φ)$ is allowed to reach zero or to become negative, so that the effective gravitational constant becomes negative in some region making the graviton a ghost. If $f$ remains non-negative, such solutions require severe fine tuning and a very peculiar kind of model. If $f < 0$ is allowed, it is argued (and confirmed by previous investigations) that such solutions are generically unstable under non-static perturbations, the instability appearing right near transition surfaces to negative $f$.
description: 8 pages, latex
Additional file 1 of The expression of substance P and calcitonin gene-related peptide is associated with the severity of tendon degeneration in lateral epicondylitis
Creators: name: Soo-Hong Han
name: Kim, Hyung Kyung
name: Jang, Yoon
name: Lee, Hyeon Hae
name: Jeongbae Rhie
name: Donghun Han
name: Jongbeom Oh
name: Lee, Soonchul
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 1: Supplemental Figure 1. Results of correlation tests between two variables: Correlations matrix. A: Age (years), B: Preoperative symptom duration, C: Preoperative VAS score, D: Preoperative DASH score, E: Postoperative DASH score, F: Postoperative VAS score, G: Body mass index, H: Movin score, I: SP expression, J: CGRP expression, Red box: Significantly correlated values. Values in each square box imply a correlation coefficient (r). VAS, visual analog scale; DASH, disability of arm, shoulder, and hand; SP, substance P; CGRP, calcitonin gene-related peptide.
Entrepreneurial discrete choice: Modelling decisions between self-employment, employer and worker status
Creators: name: Bennett, Robert
name: Montebruno, Piero
name: Smith, Harry
name: Van Lieshout, Carry
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Entrepreneurship
Employers
Self-employment
Small businesses
Census

description: A model between different forms of business organisation is estimated, focusing on the choice to operate as a sole proprietor operating on own account, or as an employer, rather than as a waged employee. The paper shows that spatial locations, marital status, gender, and family structure are key factors behind differences between entrepreneurs and waged workers.
Quantum thermodynamics aspects with a thermal reservoir based on $\mathcal{PT}$-symmetric Hamiltonians
Creators: name: Santos, Jonas F. G.
name: Luiz, Fabricio S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present results concerning aspects of quantum thermodynamics under the background of non-Hermitian quantum mechanics for the dynamics of a quantum harmonic oscillator. Since a better control over the parameters in quantum thermodynamics processes is desired, we use concepts from collisional model to introduce a simple prototype of thermal reservoir based on $\mathcal{PT}$-symmetric Hamiltonians and study its effects under the thermalization process of a single harmonic oscillator prepared in a displaced thermal state. We verify that controlling the $\mathcal{PT}$-symmetric features of the reservoir allows to reverse the heat flow between system and reservoir, as well as to preserve the coherence over a longer period of time and reduce the entropy production. Furthermore, we considered a modified quantum Otto cycle in which the standard hot thermal reservoir is replaced by the thermal reservoir based on $\mathcal{PT}$-symmetric Hamiltonians. By defining an effective temperature depending on the $\mathcal{PT}$-symmetric parameter, it is possible to interchange the quantum Otto cycle configuration from engine to refrigerator by varying the $\mathcal{PT}$-symmetric parameter. Our results indicate that $\mathcal{PT}$-symmetric effects could be useful to achieve an improvement in quantum thermodynamics protocols such as coherence protection and entropy production reduction.
Additional file 2 of The expression of substance P and calcitonin gene-related peptide is associated with the severity of tendon degeneration in lateral epicondylitis
Creators: name: Soo-Hong Han
name: Kim, Hyung Kyung
name: Jang, Yoon
name: Lee, Hyeon Hae
name: Jeongbae Rhie
name: Donghun Han
name: Jongbeom Oh
name: Lee, Soonchul
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 2: Supplemental Figure 2. Normalized SP and CGRP expression per cell. To calculate the SP and CGRP expression per cell, the cell numbers in five representative images were counted and the total SP and CGRP expression was normalized by cell number. The tendon sample with the higher Movin score (22 ≤ score ≤ 24) was determined to have significantly higher SP and CGRP expression per cell. Data are expressed as mean ± standard deviation. * indicates a p value less than 0.05. SP, substance P; CGRP, calcitonin gene-related peptide.
The ACS Virgo Cluster Survey. XIV. Analysis of Color-Magnitude Relations in Globular Cluster Systems
Creators: name: Mieske, Steffen
name: Jordan, Andres
name: Cote, Patrick
name: Kissler-Patig, Markus
name: Peng, Eric W.
name: Ferrarese, Laura
name: Blakeslee, John P.
name: Mei, Simona
name: Merritt, David
name: Tonry, John L.
name: West, Michael J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the correlation between globular cluster (GC) color and magnitude using HST/ACS imaging for a sample of 79 early-type galaxies (-21.7
description: 15 pages, 12 figures, accepted for publication in the Astrophysical Journal. Uses emulateapj.cls
Local density of states at zigzag edge of carbon nanotubes and graphene
Creators: name: Sasaki, K.
name: Sato, K.
name: Jiang, J.
name: Saito, R.
name: Onari, S.
name: Tanaka, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electron-phonon matrix element for edge states of carbon nanotubes and graphene at zigzag edges is calculated for obtaining renormalized energy dispersion of the edge states. Self-energy correction by electron-phonon interaction contributes to the energy dispersion of edge states whose energy bandwidth is similar to phonon energy. Since the energy-uncertainty of the edge state is larger than temperature, we conclude that the single-particle picture of the edge state in not appropriate when the electron-phonon interaction is taken into account. The longitudinal acoustic phonon mode contributes to the matrix element through the on-site deformation potential because the wavefunction of the edge state has an amplitude only on one of the two sublattices. The on-site deformation potentials for the longitudinal and in-plane tangential optical phonon modes are enhanced at the boundary. The results of local density of states are compared with the recent experimental data of scanning tunneling spectroscopy.
description: 8 pages, 5 figures
The first magnetic maps of a pre-main sequence binary star system - HD 155555
Creators: name: Dunstone, N. J.
name: Hussain, G. A. J.
name: Cameron, A. Collier
name: Marsden, S. C.
name: Jardine, M.
name: Stempels, H. C.
name: Vlex, J. C. Ramirez
name: Donati, J. -F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first maps of the surface magnetic fields of a pre-main sequence binary system. Spectropolarimetric observations of the young, 18 Myr, HD 155555 (V824 Ara, G5IV + K0IV) system were obtained at the Anglo-Australian Telescope in 2004 and 2007. Both datasets are analysed using a new binary Zeeman Doppler imaging (ZDI) code. This allows us to simultaneously model the contribution of each component to the observed circularly polarised spectra. Stellar brightness maps are also produced for HD 155555 and compared to previous Doppler images. Our radial magnetic maps reveal a complex surface magnetic topology with mixed polarities at all latitudes. We find rings of azimuthal field on both stars, most of which are found to be non-axisymmetric with the stellar rotational axis. We also examine the field strength and the relative fraction of magnetic energy stored in the radial and azimuthal field components at both epochs. A marked weakening of the field strength of the secondary star is observed between the 2004 and 2007 epochs. This is accompanied by an apparent shift in the location of magnetic energy from the azimuthal to radial field. We suggest that this could be indicative of a magnetic activity cycle. We use the radial magnetic maps to extrapolate the coronal field (by assuming a potential field) for each star individually - at present ignoring any possible interaction. The secondary star is found to exhibit an extreme tilt (~75 deg) of its large scale magnetic field to that of its rotation axis for both epochs. The field complexity that is apparent in the surface maps persists out to a significant fraction of the binary separation. Any interaction between the fields of the two stars is therefore likely to be complex also. Modelling this would require a full binary field extrapolation.
description: 17 pages, 12 figures, accepted for publication in MNRAS
K-band GRAVITY/VLTI interferometry of "extreme" Herbig Be stars. The size-luminosity relation revisited
Creators: name: Marcos-Arenal, P.
name: Mendigutía, I.
name: Koumpia, E.
name: Oudmaijer, R. D.
name: Vioque, M.
name: Guzmán-Díaz, J.
name: Wichittanakom, C.
name: de Wit, W. J.
name: Montesinos, B.
name: Ilee, J. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: (Abridged:) It has been hypothesized that the location of Herbig Ae/Be stars (HAeBes) within the empirical relation between the inner disk radius (r$_{in}$), inferred from K-band interferometry, and the stellar luminosity (L$_*$), is related to the presence of the innermost gas, the disk-to-star accretion mechanism, the dust disk properties inferred from the spectral energy distributions (SEDs), or a combination of these effects. This work aims to test whether the previously proposed hypotheses do, in fact, serve as a general explanation for the distribution of HAeBes in the size-luminosity diagram. GRAVITY/VLTI spectro-interferometric observations at $\sim $2.2 $ μ$m have been obtained for five HBes representing two extreme cases concerning the presence of innermost gas and accretion modes. V590 Mon, PDS 281, and HD 94509 show no excess in the near-ultraviolet, Balmer region of the spectra ($Δ$D$_B$), indicative of a negligible amount of inner gas and disk-to-star accretion, whereas DG Cir and HD 141926 show such strong $Δ$D$_B$ values that cannot be reproduced from magnetospheric accretion, but probably come from the alternative boundary layer mechanism. Additional data for these and all HAeBes resolved through K-band interferometry have been compiled from the literature and updated using Gaia EDR3 distances, almost doubling previous samples used to analyze the size-luminosity relation. We find no general trend linking the presence of gas inside the dust destruction radius or the accretion mechanism with the location of HAeBes in the size-luminosity diagram. Underlying trends are present and must be taken into account when interpreting the size-luminosity correlation. Still, it is argued that the size-luminosity correlation is most likely to be physically relevant in spite of the previous statistical warning concerning dependencies on distance.
description: 20 pages, 17 figures. The main data reduction and analysis process ia available at https://github.com/marcosarenal/gravity-data-reduction
Taming Fluctuations for Gaussian States in Loop Quantum Cosmology
Creators: name: Fraser, Patrick
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We do not observe quantum effects on cosmological scales. Thus, if loop quantum cosmology (LQC) is to provide an accurate depiction of the real world, it must allow for quantum states of spacetime geometry which are semi-classical in two respects: they must be sharply peaked around a single, classical geometry, and they must have small quantum fluctuations. It is generally assumed that Gaussian states exhibit both of these properties. After all, they do in ordinary quantum mechanics. In this paper, we derive exact closed-form expressions for the fluctuations of Gaussian states in LQC and their lower bound given by the Robertson-Schrödinger inequality. We demonstrate that, contrary to ordinary quantum mechanics, fluctuations for Gaussian states in spatially flat, homogeneous and isotropic LQC diverge as the state variance increases (as well as in related cosmological models with the same kinematic Hilbert space and canonical observables). However, when the holonomy length is made to scale with a volume regularization parameter, these fluctuations may be arbitrarily suppressed by taking the fiducial volume to be large, providing analytic control over their divergence. Finally, we show that, despite this, Gaussian states in LQC generally do not minimize uncertainty. Moreover, it is conjectured that no such minimal-uncertainty states exist. Throughout this work, it becomes clear how important the often-assumed condition of holonomy length volume-scaling is; we show that when this condition is violated, the resulting theory exhibits operator closure pathologies and other exotic algebraic features.
description: 11 pages, 5 figures; To be published in Physical Review D
Dynamical correlation functions of the XXZ model at finite temperature
Creators: name: Sakai, Kazumitsu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Combining a lattice path integral formulation for thermodynamics with the solution of the quantum inverse scattering problem for local spin operators, we derive a multiple integral representation for the time-dependent longitudinal correlation function of the spin-1/2 Heisenberg XXZ chain at finite temperature and in an external magnetic field. Our formula reproduces the previous results in the following three limits: the static, the zero-temperature and the XY limits.
description: 22 pages, v4: typos corrected, published version
Additional file 3 of The expression of substance P and calcitonin gene-related peptide is associated with the severity of tendon degeneration in lateral epicondylitis
Creators: name: Soo-Hong Han
name: Kim, Hyung Kyung
name: Jang, Yoon
name: Lee, Hyeon Hae
name: Jeongbae Rhie
name: Donghun Han
name: Jongbeom Oh
name: Lee, Soonchul
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 3: Supplemental Figure 3. Regression model accuracy. Regression model accuracy was tested using the adjusted R square (A), Akaike information criterion (B), and Mallow’s Cp (C). Models excluding the preoperative VAS score showed better fit in all tests. VAS: visual analog scale.
Additional file 4 of The expression of substance P and calcitonin gene-related peptide is associated with the severity of tendon degeneration in lateral epicondylitis
Creators: name: Soo-Hong Han
name: Kim, Hyung Kyung
name: Jang, Yoon
name: Lee, Hyeon Hae
name: Jeongbae Rhie
name: Donghun Han
name: Jongbeom Oh
name: Lee, Soonchul
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 4: Supplemental Table 1. Movin score.
Protecting Life in the Milky Way: Metals Keep the GRBs Away
Creators: name: Stanek, K. Z.
name: Gnedin, O. Y.
name: Beacom, J. F.
name: Gould, A. P.
name: Johnson, J. A.
name: Kollmeier, J. A.
name: Modjaz, M.
name: Pinsonneault, M. H.
name: Pogge, R.
name: Weinberg, D. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The host galaxies of the five local, z<0.25, long-duration gamma-ray bursts, each of which had a well-documented associated supernova, are all faint and metal-poor compared to the population of local star-forming galaxies. We quantify this statement by using a previous analysis of star-forming galaxies (z<0.2) from the Sloan Digital Sky Survey to estimate the fraction of local star formation as a function of host galaxy oxygen abundance. We find that only a small fraction (<25%) of current star formation occurs in galaxies with oxygen abundance 12+log(O/H)<8.6, i.e., about half that of the Milky Way. However, all five low-z GRB hosts have oxygen abundance below this limit, in three cases very significantly so. If GRBs traced local star formation independent of metallicity, the probability of obtaining such low abundances for all five hosts would be P~0.1%. We conclude that GRBs trace only low-metallicity star formation, and that the Milky Way has been too metal rich to host long GRBs for at least the last several billion years. This result has implications for the potential role of GRBs in mass extinctions, for searches for recent burst remnants in the Milky Way and other large galaxies, for non-detections of late radio emission from local core-collapse supernovae, and for the production of cosmic rays in the local Universe. We also find that the isotropic energy release of these five GRBs, E_iso, steeply decreases with increasing host oxygen abundance, suggesting an upper metallicity limit for ``cosmological'' GRBs at ~0.15 Z_solar. (Abridged)
description: To be published in Acta Astronomica. 16 pages, 3 figures; several small changes
Square summability of variations and convergence of the transfer operator
Creators: name: Johansson, Anders
name: Öberg, Anders
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 37A05, 28D05, 37A30, 37A60

description: In this paper we study the one-sided shift operator on a state space defined by a finite alphabet. Using a scheme developed by Walters [13], we prove that the sequence of iterates of the transfer operator converges under square summability of variations of the g-function, a condition which gave uniqueness of a g-measure in [7]. We also prove uniqueness of so-called G-measures, introduced by Brown and Dooley [2], under square summability of variations.
description: 8 pages
Sign-free stochastic mean-field approach to strongly correlated phases of ultracold fermions
Creators: name: Juillet, Olivier
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a new projector quantum Monte-Carlo method to investigate the ground state of ultracold fermionic atoms modeled by a lattice Hamiltonian with on-site interaction. The many-body state is reconstructed from Slater determinants that randomly evolve in imaginary-time according to a stochastic mean-field motion. The dynamics prohibits the crossing of the exact nodal surface and no sign problem occurs in the Monte-Carlo estimate of observables. The method is applied to calculate ground-state energies and correlation functions of the repulsive two-dimensional Hubbard model. Numerical results for the unitary Fermi gas validate simulations with nodal constraints.
description: Accepted for publication in New Journal of Physics
Quasinormal ringing of acoustic black holes in Laval nozzles: Numerical simulations
Creators: name: Okuzumi, Satoshi
name: Sakagami, Masa-aki
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Quasinormal ringing of acoustic black holes in Laval nozzles is discussed. The equation for sounds in a transonic flow is written into a Schrödinger-type equation with a potential barrier, and the quasinormal frequencies are calculated semianalytically. From the results of numerical simulations, it is shown that the quasinormal modes are actually excited when the transonic flow is formed or slightly perturbed, as well as in the real black hole case. In an actual experiment, however, the purely-outgoing boundary condition will not be satisfied at late times due to the wave reflection at the end of the apparatus, and a late-time ringing will be expressed as a superposition of "boxed" quasinormal modes. It is shown that the late-time ringing damps more slowly than the ordinary quasinormal ringing, while its central frequency is not greatly different from that of the ordinary one. Using this fact, an efficient way for experimentally detecting the quasinormal ringing of an acoustic black hole is discussed.
description: 9 pages, 8 figures, accepted for publication in Physical Review D
Additional file 3 of A gene co-association network regulating gut microbial communities in a Duroc pig population
Creators: name: Reverter, Antonio
name: Ballester, Maria
name: Alexandre, Pamela A.
name: Mármol-Sánchez, Emilio
name: Dalmau, Antoni
name: Quintanilla, Raquel
name: Ramayo-Caldas, Yuliaxis
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 2: Supplementary Fig. 1. Overview of the PCIT-inferred gene co-association network for 3561 SNP-Genes included in the AWM procedure.
Spectroscopic Evidence for the Direct Involvement of Local Moments in the Pairing Process of the Heavy-Fermion Superconductor CeCoIn$_5$
Creators: name: Shrestha, K.
name: Zhang, S.
name: Greene, L. H.
name: Lai, Y.
name: Baumbach, R. E.
name: Sasmal, K.
name: Maple, M. B.
name: Park, W. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The microscopic mechanism for electron pairing in heavy-fermion superconductors remains a major challenge in quantum materials. Some form of magnetic mediation is widely accepted with spin fluctuations as a prime candidate. A novel mechanism, 'composite pairing' based on the cooperative two-channel Kondo effect directly involving the f-electron moments has also been proposed for some heavy fermion compounds including CeCoIn$_5$. The origin of the spin resonance peak observed in neutron scattering measurements on CeCoIn$_5$ is still controversial and the corresponding hump-dip structure in the tunneling conductance is missing. This is in contrast to the cuprate and Fe-based high-temperature superconductors, where both characteristic signatures are observed, indicating spin fluctuations are likely involved in the pairing process. Here, we report results from planar tunneling spectroscopy along three major crystallographic orientations of CeCoIn5 over wide ranges of temperature and magnetic field. The pairing gap opens at T$_p$ ~ 5 K, well above the bulk T$_c$ = 2.3 K, and its directional dependence is consistent with d$_{x^2-y^2}$ symmetry. With increasing magnetic field, this pairing gap is suppressed as expected but, intriguingly, a gaplike structure emerges smoothly, increasing linearly up to the highest field applied. This field-induced gaplike feature is only observed below T$_p$. The concomitant appearance of the pairing gap and the field-induced gaplike feature, along with its linear increase with field, indicates that the f-electron local moments are directly involved in the pairing process in CeCoIn$_5$.
description: 25 pages, 6 figures; Supplemental Material included
Properties of superconductivity on the density wave background with small ungapped Fermi surface pockets
Creators: name: Grigoriev, P. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the properties and the microscopic structure of superconductivity (SC), coexisting and sharing the common conducting band with density wave (DW). Such coexistence may take place when the nesting of the Fermi surface (FS) is not perfect, and in the DW state some quasi-particle states remain on the Fermi level and lead to the Cooper instability. The dispersion of such quasi-particle states is, in general, very different from that without DW. Therefore, the properties of SC on the DW background may strongly differ from those without DW. The upper critical field $H_{c2}$ in such a SC state increases as the system approaches the critical pressure, where the ungapped quasi-particles and superconductivity just appear, and it may considerably exceed the usual $H_{c2}$ value without DW. The SDW background strongly suppresses the singlet SC pairing, while it does not affect so much the triplet SC transition temperature. The results obtained explain the experimental observations in layered organic metals (TMTSF)$_{2}$PF$_{6}$ and $α$-(BEDT-TTF)$_{2}$KHg(SCN)$_{4}$, where SC appears in the DW states under pressure and shows many unusual properties.
description: 12 pages with 4 figures
Assumption financing and housing prices
Creators: name: Hobden, David W.
Publisher: name: University of British Columbia
Year: 2010

description: A below market assumable mortgage may imply a discount in the financing costs of prospective property buyers. Sellers may capitalize any discount value into their asking price for the property. Residential properties sold with below market assumption financing may therefore include a capitalized discount in their selling price. This study empirically tests the hypothesis that below market assumption financed residential properties include a capitalized discount in their observed selling price and obtains both a parametric and nonparametric estimate of the average discount capitalization rate. The hypothesis is tested on a large-scale sample of residential condominium sales that occurred in Vancouver over the 13 year period from 1974 to 1986. Both the hedonic pricing and matched pairs methodologies are employed to control for non-financial differences among the sampled transactions. The theoretical value of assumption financing discounts is measured using a modified Cash Equivalent Adjustment model. This study concludes that Vancouver condominiums sold with discount assumption financing do, on average, include a capitalized discount in their selling price. The hedonic price estimate of the average discount capitalization rate is approximately 75 percent of the modified Cash Equivalent discount value; the matched pairs estimate is approximately 50 percent of the modified Cash Equivalent discount value. The average discount capitalization rate appears to be stable across periods of high and moderate inflation.
Whose Heritage Counts? Narratives of Coptic People’s Heritage
Creators: name: Monier, Elizabeth
Publisher: name: Institute of Development Studies (IDS)
Year: 2021
Subjects: coptic heritage
Copts
Egypt
Heritage

description: This paper examines whose voices narrate official Coptic heritage, what the in-built biases in representations of Coptic heritage are and why, and some of the implications of omissions in narratives of Coptic heritage. It argues that the primary narrator of official Coptic heritage during the twentieth century was the leadership of the Coptic Orthodox Church. The Coptic Orthodox Church is the body that holds authority over the sources of heritage, such as church buildings and manuscripts, and also has the resources with which to preserve and disseminate heritage. The Church hierarchy’s leadership was not entirely uncontested, however, a middle ground was continually negotiated to enable lay Copts to play various roles and contribute to the articulation of Coptic heritage. Ultimately, though, alternative voices must operate within the limits set by the Church leadership and also negotiate the layers of exclusion set by society and state.
Visualizing the Obvious: A Concreteness-based Ensemble Model for Noun Property Prediction
Creators: name: Yang, Yue
name: Panagopoulou, Artemis
name: Apidianaki, Marianna
name: Yatskar, Mark
name: Callison-Burch, Chris
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Neural language models encode rich knowledge about entities and their relationships which can be extracted from their representations using probing. Common properties of nouns (e.g., red strawberries, small ant) are, however, more challenging to extract compared to other types of knowledge because they are rarely explicitly stated in texts. We hypothesize this to mainly be the case for perceptual properties which are obvious to the participants in the communication. We propose to extract these properties from images and use them in an ensemble model, in order to complement the information that is extracted from language models. We consider perceptual properties to be more concrete than abstract properties (e.g., interesting, flawless). We propose to use the adjectives' concreteness score as a lever to calibrate the contribution of each source (text vs. images). We evaluate our ensemble model in a ranking task where the actual properties of a noun need to be ranked higher than other non-relevant properties. Our results show that the proposed combination of text and images greatly improves noun property prediction compared to powerful text-based language models.
description: Findings of EMNLP 2022; The first two authors contributed equally