cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cleft Extensions and Quotients of Twisted Quantum Doubles
Creators: name: Mason, Geoffrey
name: Ng, Siu-Hung
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Given a pair of finite groups $F, G$ and a normalized 3-cocycle $ω$ of $G$, where $F$ acts on $G$ as automorphisms, we consider quasi-Hopf algebras defined as a cleft extension $\Bbbk^G_ω\#_c\,\Bbbk F$ where $c$ denotes some suitable cohomological data. When $F\rightarrow \overline{F}:=F/A$ is a quotient of $F$ by a central subgroup $A$ acting trivially on $G$, we give necessary and sufficient conditions for the existence of a surjection of quasi-Hopf algebras and cleft extensions of the type $\Bbbk^G_ω\#_c\, \Bbbk F\rightarrow \Bbbk^G_ω\#_{\overline{c}} \, \Bbbk \overline{F}$. Our construction is particularly natural when $F=G$ acts on $G$ by conjugation, and $\Bbbk^G_ω\#_c \Bbbk G$ is a twisted quantum double $D^ω(G)$. In this case, we give necessary and sufficient conditions that Rep($\Bbbk^G_ω\#_{\overline{c}} \, \Bbbk \overline{G}$) is a modular tensor category.
description: LaTex; 14 pages
Age and metallicity gradients support hierarchical formation for M87
Creators: name: Montes, Mireia
name: Trujillo, Ignacio
name: Prieto, M. Almudena
name: Acosta-Pulido, José A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In order to probe the inside-out formation of the most massive galaxies in the Universe, we have explored the radial (0.1 < R < 8 kpc) variation of the spectral energy distribution (SED) of M87 from UV to IR. For this purpose, we have combined high resolution data in 16 different bands. Our analysis indicate that the age of the stellar population of M87 remains almost unchanged with radius. However, the metallicity ([Z/H]) profile presents three different zones: the innermost kpc shows a plateau with supersolar metallicity, followed by a decline in metallicity down to 5 kpc and another plateau afterwards. The size of the inner plateau is similar to the expected size (Re) of an object with the predicted mass of M87 at z=2. The global [Z/H] gradient is -0.26 +- 0.10, similar to those found in other nearby massive ellipticals. The observed change in the stellar population of M87 is consistent with a rapid formation of the central part (R<5 kpc) of this galaxy followed by the accretion of the outer regions through the infall of more metal-poor material.
description: Accepted in MNRAS
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (63)]
Creators: name: Guisscardinus De Giroldis
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1224
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Guisscardinus de Giroldis sichert Otolinus de Casamala seine Güter für einen geliehenen Geldbetrag als Pfand zu.
Near-field thermodynamics: Useful work, efficiency, and energy harvesting
Creators: name: Latella, Ivan
name: Pérez-Madrid, Agustín
name: Lapas, Luciano C.
name: Rubi, J. Miguel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the maximum work that can be obtained from the thermal radiation emitted between two planar sources in the near-field regime is much larger than that corresponding to the blackbody limit. This quantity as well as an upper bound for the efficiency of the process are computed from the formulation of thermodynamics in the near-field regime. The case when the difference of temperatures of the hot source and the environment is small, relevant for energy harvesting, is studied in detail. We also show that thermal radiation energy conversion can be more efficient in the near-field regime. These results open new possibilities for the design of energy converters that can be used to harvest energy from sources of moderate temperature at the nanoscale.
description: 5 pages, 3 figures
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (65)]
Creators: name: Lanfrancus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1226
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Lanfrancus, Sohn des verstorbenen Guilielmino de Conis, versichert dem Julianus de Apizis, Sohn des Rodulfus, ihm eine geliehene Summe Geldes zurückzuzahlen.
Emergent modified gravity: Covariance regained
Creators: name: Bojowald, Martin
name: Duque, Erick I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In its canonical formulation, general relativity is subject to gauge transformations that are equivalent to space-time coordinate changes of general covariance only when the gauge generators, given by the Hamiltonian and diffeomorphism constraints, vanish. Since the specific form taken by Poisson brackets of the constraints and of the gauge transformations and equations of motion they generate is important for general covariance to be realized, modifications of the canonical theory, suggested for instance by approaches to quantum gravity, are not guaranteed to be compatible with the existence of a covariant space-time line element. This caveat applies even if the modification preserves the number of independent gauge transformations and the modified constraints remain first class. Here, a complete derivation of covariance conditions, regained from the canonical constraints without assuming that space-time has its classical structure, is presented and applied in detail to spherically symmetric vacuum models. As a broad application, the presence of structure functions in the constraint brackets plays a crucial role, which in an independent analysis has recently been shown to lead to higher algebraic structures in hypersurface deformations given by an L-infinity bracket. The physical analysis of a related feature presented here demonstrates that, at least within the spherically symmetric setting, new theories of modified gravity are possible that are not of higher-curvature form.
description: 50 pages
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (68)]
Creators: name: De Comezano, Petrus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1225
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Petrus de Comezano, aus der Nachbarschaft von St. Victoris, verkauft dem Petrus, archipresbyter der Kathedrale von Cremona, der im Namen verschiedener genannter Altäre der Kathedrale handelt, ein Stück Land nahe St. Victoris.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (69)]
Creators: name: Homobonus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1225
Subjects: subject: Bischofsurkunde
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Homobonus Medalbertus, Bischof von Cremona und Graf, autorisiert den Albertus Cagalane, praepositus der Kirche St. Cataldi, damit er dem Jacomus de Blanca auf den 29 Jahre den Zehnt aus Land, gelegen in Bredalonga, verkauft.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (70)]
Creators: name: Albertonus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1225
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Albertonus, praepositus der Kirche St. Cataldi [in Cremona], tauscht mit Jacomus de Blaca den Zehnt von Gütern in Bredalonga gegen Güter ebendort.
Small-Angle Neutron Scattering and Magnetization Study of HoNi2B2C
Creators: name: Ramazanoglu, M.
name: Laver, M.
name: Yagmurcu, A.
name: Choi, E. -M.
name: Lee, S. -I.
name: Knigavko, A.
name: Gaulin, B. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The superconducting and magnetic properties of HoNi2B2C single crystals are investigated through transport, magnetometry and small-angle neutron scattering measurements. In the magnetic phases that enter below the superconducting critical temperature, the small-angle neutron scattering data uncover networks of magnetic surfaces. These likely originate from uncompensated moments e.g. at domain walls pinned to crystallographic grain boundaries. The field and temperature dependent behaviour appears consistent with the metamagnetic transitions reported in earlier works.
description: 11 pages , 4 figures, submitted to Low Temperature Physics
Locality Error Free Effective Core Potentials for 3d Transition Metal Elements Developed for the Diffusion Monte Carlo Method
Creators: name: Ichibha, Tom
name: Nikaido, Yutaka
name: Bennett, M. Chandler
name: Krogel, Jaron T.
name: Hongo, Kenta
name: Maezono, Ryo
name: Reboredo, Fernando A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Pseudopotential locality errors have hampered the applications of the diffusion Monte Carlo (DMC) method in materials containing transition metals, in particular oxides. We have developed locality error free effective core potentials, pseudo-Hamiltonians, for transition metals ranging from Cr to Zn. We have modified a procedure published by some of us in [M.C. Bennett et al, JCTC 18 (2022)]. We carefully optimized our pseudo-Hamiltonians and achieved transferability errors comparable to the best semilocal pseudopotentials used with DMC but without incurring in locality errors. Our pseudo-Hamiltonian set (named OPH23) bears the potential to significantly improve the accuracy of many-body-first-principles calculations in fundamental science research of complex materials involving transition metals.
A MULTI-FACTORIAL SUSTAINABILITY ASSESSMENT OF FIVE EUROPEAN AGROFORESTRY FARMS
Creators: name: Smith
name: L.G.
name: Smith
name: J.
name: Wolfe
name: M.
name: Ghaley
name: B.B.
name: Pisanelli
name: A.
name: Lauteri, M.
name: Sandor, M.
name: Gliga, A.
name: Wawer, R.
name: Borek, R.
Publisher: name: Zenodo
Year: 2018
Subjects: Public Goods; silvopastoral; silvoarable; olives; alley cropping

description: Proceedings of the 4th European Agroforestry Conference: Agroforestry as Sustainable Land Use. 28-30 May 2018, Nijmegen, The Netherlands  Pages 265-268
Poster presentation. Within the European project SustainFARM researchers from five countries (Denmark, UK, Italy, Poland, Romania) have adapted an established sustainability assessment to allow for its application within a range of agroforestry systems. The Public Goods Tool assesses the agriculture-related "public goods" that are provided by a farm, covering a number of 'spurs' or dimensions of sustainability. Results from an initial pilot assessment of seven agroforestry farms from the five countries with the updated tool have revealed that it can provide a useful learning framework; however further improvements are needed to capture the future aspirations of the farm-manger and introducing a weighting factor to account for region/system specificity. The results from the assessment itself have also revealed the benefits that diverse agroforestry systems can provide across a range of sustainability criteria. Future research in this area will investigate the potential for adapting the PGT to allow for self-assessments.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (71)]
Creators: name: Lanfranchinus De Eumergarda De Conis
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1227
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Lanfranchinus de Eumergarda de Conis versichert dem Julianus de Opicis aus Rivarolo del Re, ihm eine geliehene Summe zurückzuzahlen.
La Silla QUEST RR Lyrae Star Survey: Region I
Creators: name: Zinn, R.
name: Horowitz, B.
name: Vivas, A. K.
name: Baltay, C.
name: Ellman, N.
name: Hadjiyska, E.
name: Rabinowitz, D.
name: Miller, L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A search for RR Lyrae stars (RRLS) in 840 sq.deg. of the sky in right ascension 150 - 210 deg and declination -10 - +10 deg yielded 1013 type ab and 359 type c RRLS. This sample is used to study the density profile of the Galactic halo, halo substructures, and the Oosterhoff type of the halo over distances from 5 to 80 kpc. The halo is flattened towards the Galactic plane, and its density profile steepens in slope at galactocentric distances greater than 25 kpc. The RRLS in the stellar stream from the Sagittarius dwarf spheroidal (dSph) galaxy match well the model of Law and Majewski for the stars that were stripped 1.3 to 3.2 Gyr ago, but not for the ones stripped 3.2 to 5.0 Gyr ago. Over densities are found at the locations of the Virgo Overdensity and the Virgo Stellar Stream. Within 1 deg of 1220-1, which Jerjen et al. identify as a halo substructure at a distance of 24 kpc, there are 4 RRLS that are possibly members. Away from substructures, the RRLS are a mixture of Oosterhoff types I and II, but mostly OoI (73%). The accretion of galaxies resembling in RRLS content the most massive Milky Way satellites (LMC, SMC, For,Sgr) may explain this preponderance of OoI. Six new RRLS and 3 new anomalous Cepheids were found in the Sextans dSph galaxy.
description: 90 pages, 23 figures
A panoramic VISTA of the stellar halo of NGC 253
Creators: name: Greggio, Laura
name: Rejkuba, Marina
name: Gonzalez, Oscar A.
name: Arnaboldi, Magda
name: Iodice, Enrica
name: Irwin, Mike
name: Neeser, Mark J.
name: Emerson, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Outskirts of large galaxies contain important information about the galaxy formation and assembly process, and resolved star count studies can probe the extremely low surface brightness of the outer halos. We use images obtained with the VISTA telescope to construct spatially resolved J vs Z-J colour-magnitude diagrams (CMDs) of NGC 253, a nearly edge-on disk galaxy in the Sculptor group. The very deep photometry, down to J ~ 23.5, and the wide area covered allows us to trace the red giant branch (RGB) and asymptotic giant branch (AGB) stars that belong to the outer disk and the halo of NGC 253, out to 50 kpc along the galaxy minor axis. We confirm the existence of an extra planar stellar component of the disk, with a very prominent southern shelf and a symmetrical feature on the north side. The only additional visible sub-structure is an overdensity in the north-west part of the halo at about 28 kpc from the plane and extending over ~ 20 kpc parallel with the disk of the galaxy. From the stellar count profile along the major axis we measure the transition from the disk to the halo at a radial distance of about 25 kpc, where a clear break appears in the number density profile. The isodensity contours show that the inner halo is a flattened structure that blends with a more extended, diffuse, rounder outer halo. Such external structure can be traced to the very edge of our image out to 50 kpc from the disk plane. The number density profile of the stars in the stellar halo follows a power law with index -1.6, as function of radius. The CMD shows a very homogeneous stellar population across the whole field; by comparison with theoretical isochrones we conclude that the RGB stars are ~ 8 Gyr old or more, while the AGB stars trace a population of about 2 x 10^8 Mo, formed from ~ 0.5 to a few Gyr ago. Surprisingly, part of this latter population appears scattered over a wide area.
description: To appear on Astronomy and Astrophysics
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (72)]
Creators: name: Umbertus De Lucianis
name: Gastoldus, Jacobus
name: Bartlus, Johannes
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1226
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Umbertus de Lucianis, Jacobus Gastoldus und Johannes Bartlus verkaufen Petrus de Sagundio de Gualdemannis ein Stück Land in Pollicino Sancti Vithi, genannt Scardouaria.
Molecular observations of comets C/2012 S1 (ISON) and C/2013 R1 (Lovejoy): HNC/HCN ratios and upper limits to PH3
Creators: name: Agundez, M.
name: Biver, N.
name: Santos-Sanz, P.
name: Bockelee-Morvan, D.
name: Moreno, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present molecular observations carried out with the IRAM 30m telescope at wavelengths around 1.15 mm towards the Oort cloud comets C/2012 S1 (ISON) and C/2013 R1 (Lovejoy) when they were at 0.6 and 1 au, respectively, from the Sun. We detect HCN, HNC, and CH3OH in both comets, together with the ion HCO+ in comet ISON and a few weak unidentified lines in comet Lovejoy, one of which might be assigned to methylamine (CH3NH2). The monitoring of the HCN J = 3-2 line showed a tenfold enhancement in comet ISON on November 14.4 UT due to an outburst of activity whose exact origin is unknown, although it might be related to some break-up of the nucleus. The set of CH3OH lines observed was used to derive the kinetic temperature in the coma, 90 K in comet ISON and 60 K in comet Lovejoy. The HNC/HCN ratios derived, 0.18 in ISON and 0.05 in Lovejoy, are similar to those found in most previous comets and are consistent with an enhancement of HNC as the comet approaches the Sun. Phosphine (PH3) was also searched for unsuccessfully in both comets through its fundamental 1-0 transition, and 3 sigma upper limits corresponding to PH3/H2O ratios 4-10 times above the solar P/O elemental ratio were derived.
description: Accepted for publication in A&A Letters. Preprint available at http://dx.doi.org/10.1051/0004-6361/201423639
$E1$ PNC transition amplitudes of the hyperfine components for $^2S_{1/2}$ $-$ $^2D_{3/2}$ transitions of $^{137}$Ba$^{+}$ and $^{87}$Sr$^{+}$
Creators: name: Dutta, Narendra Nath
name: Majumder, Sonjoy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this paper, we have calculated parity nonconserving electric dipole transition amplitudes of the hyperfine components for the transitions between the ground and first excited states of $^{137}$Ba$^{+}$ and $^{87}$Sr$^{+}$ using sum-over-states technique. The results are presented to extract the constants associated with the nuclear spin dependent amplitudes from experimental measurements. The wavefunctions to calculate the most dominant part of the sums are constructed using highly correlated coupled-cluster theory based on the Dirac-Coulomb-Gaunt Hamiltonian.
Impurity-doped scalar fields in arbitrary dimensions
Creators: name: Bazeia, D.
name: Liao, M. A.
name: Marques, M. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate the presence of localized structures for relativistic scalar fields coupled to impurities in arbitrary spatial dimensions. Such systems present spatial inhomogeneity, realized through the inclusion of explicit coordinate dependence in the Lagrangian. It is shown that, in stark contrast to the impurity-free scenario, Derrick's argument does not present a strong hindrance to the existence of stable solutions in this case. Bogomol'nyi equations giving rise to global minima of the energy are found, and some of the ensuing BPS configurations are presented.
description: 6 pages, 1 figure. To appear in PLB
Discovering functional DNA elements using population genomic information: A proof of concept using human mtDNA
Creators: name: Schrider, Daniel R.
name: Kern, Andrew D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Identifying the complete set of functional elements within the human genome would be a windfall for multiple areas of biological research including medicine, molecular biology, and evolution. Complete knowledge of function would aid in the prioritization of loci when searching for the genetic bases of disease or adaptive phenotypes. Because mutations that disrupt function are disfavored by natural selection, purifying selection leaves a detectable signature within functional elements; accordingly this signal has been exploited through the use of genomic comparisons of distantly related species. However, the functional complement of the genome changes extensively across time and between lineages, therefore, evidence of the current action of purifying selection is essential. Because the removal of deleterious mutations by natural selection also reduces within-species genetic diversity within functional loci, dense population genetic data have the potential to reveal genomic elements that are currently functional. Here we assess the potential of this approach using 16,411 human mitochondrial genomes. We show that the high density of polymorphism in this dataset precisely delineates regions experiencing purifying selection. Further, we show that the number of segregating alleles at a site is strongly correlated with its divergence across species after accounting for known mutational biases in human mtDNA. These two measures track one another at a remarkably fine scale across many loci--a correlation that is purely the result of natural selection. Our results demonstrate that genetic variation has the potential to reveal exactly which nucleotides in the genome are currently performing important functions and likely to have deleterious fitness effects when mutated. As more complete genomes are sequenced, similar power to reveal purifying selection may be achievable in the human nuclear genome.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (73)]
Creators: name: De Lociputeis, Johannes Uetus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1227
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Johannes Uetus de Lociputeis aus Commessaggio Inferiore sichert dem Girardus aus Fidenza (Burgo San Donino), jetzt wohnhaft in Cremona, seine Güter für einen geliehenen Geldbetrag als Pfand zu.
US and European Technology Roadmap for a Mid-infrared Space Interferometer
Creators: name: Schuller, Peter A.
name: Lawson, Peter R.
name: Lay, Olivier P.
name: Léger, Alain
name: Martin, Stefan R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Studies of mid-infrared space interferometer concepts in the USA and in Europe have converged on a single architecture. We address the question of how the US and European communities could collaborate to advance technology efforts leading to a future space mission. We present the current state of the art in nulling interferometry, as demonstrated at ambient temperature and pressure in the lab, and outline required steps to demonstrate its performance under space conditions. Design studies of a cryogenic optical test bench under vacuum have already been carried out. We highlight pre-conditions and constraints of a collaborative effort, foreseeable practical and administrative challenges, and possible strategies to meet those challenges.
description: 2 pages; proceedings of workshop "Pathways Towards Habitable Planets" held 14 to 18 September 2009 in Barcelona, Spain
Slow-light Airy wave packets and their active control via electromagnetically induced transparency
Creators: name: Hang, Chao
name: Huang, Guoxiang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a scheme to generate (3+1)-dimensional slow-light Airy wave packets in a resonant $Λ$-type three-level atomic gas via electromagnetically induced transparency. We show that in the absence of dispersion the Airy wave packets formed by a probe field consist of two Airy wave packets accelerated in transverse directions and a longitudinal Gaussian pulse with a constant propagating velocity lowered to $10^{-5}\,c$ ($c$ is the light speed in vacuum). We also show that in the presence of dispersion it is possible to generate another type of slow-light Airy wave packets consisting of two Airy beams in transverse directions and an Airy wave packet in the longitudinal direction. In this case, the longitudinal velocity of the Airy wave packet can be further reduced during propagation. Additionally, we further show that the transverse accelerations (or bending) of the both types of slow-light Airy wave packets can be completely eliminated and the motional trajectories of them can be actively manipulated and controlled by using a Stern-Gerlach gradient magnetic field.
description: 19 pages, 5 figures
Impact of the Expanded Food and Nutrition Education Program on Low-Income Families: An Indepth Analysis
Creators: name: Feaster, J. Gerald
name: Feaster, J. Gerald
Publisher: name: Unknown
Year: 1972
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Low income
subject: consumption
subject: food
subject: nutrition
subject: poverty
subject: income
subject: expenditures

description: About 184,000 low-income families participated in the Extension Service's Expanded Food and Nutrition Education Program (EFNEP) prior to October 1969. A national sample of 10,500 showed that family incomes were very low--less than $2,700, of which more than a third was spent for food. Families with annual incomes of less than $1,200 per year spent nearly one-half for food. Most families were urban, members of minority groups, and had homemakers with relatively low educational levels. Food consumption practices of homemakers upon entering the program indicated that many families had poor diets. Foods in the milk and fruit/vegetable groups were most often lacking in diets. Homemakers with poorest diets tended to be urban, on welfare, poorly educated, and have low-family incomes and food expenditures. After 6 months of EFNEP participation substantial improvements in food knowledge and consumption practices were evident, particularly in the consumption of foods in the milk and fruit/vegetable groups. Homemakers with the poorest diets showed more improvement than those who had better initial food consumption practices. Homemakers receiving more visits from program personnel, a measure of intensity of program instruction, increased their consumption of foods in the milk and fruit/vegetable groups more than homemakers receiving fewer visits.
Dichroism for Orbital Angular Momentum using Stimulated Parametric Down Conversion
Creators: name: Lowney, Joseph
name: Roger, Thomas
name: Faccio, Daniele
name: Wright, Ewan M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically analyze stimulated parametric down conversion as a means to produce dichroism based on the orbital angular momentum (OAM) of an incident signal field. The nonlinear interaction is shown to provide differential gain between signal states of differing OAM, the peak gain occurring at half the OAM of the pump field.
description: 7 pages, 5 figures
A simple fully conformal solution of Einstein's gravitational equations and the agreement of its implications with astrophysical data
Creators: name: Dvorsky, Richard
Publisher: name: figshare
Year: 2023
Subjects: Cosmology and extragalactic astronomy

description: Another cosmological redshift mechanism could exist in general relativity, as is differences in the global metric field gμν between the radiation source in the past, and the observer in the present, known as gravitational redshift in massive stars. In this paper, we present a fully conformal global metric model with time scaling that would lead to the above alternative interpretation of the cosmological redshift. It is based on a relatively simple global solution of Einstein's gravitational equations without the cosmological term, and the analysis also shows other interesting astrophysical implications. The model naturally solves the problem of critical density and spatial flatness, as well as the problem of cosmological redshift in the spectra of distant astrophysical sources, and the problem of Olbers' and Seeliger's paradox. At the same time, it replaces the strict causal horizon principle with a much softer formulation-the region of the practically observable universe. Confrontation with astrophysical data provides interesting agreement with the spatial distribution of astrophysical radiation sources such as γ-ray bursts and quasars. However, probably the most important consequence is the new, generalized formulation of Hubble's law z(r) = (exp(Hr/c)-1), which shows good agreement R 2 ≈ 0.9824 with experimental data even for very distant sources. The paper also physically justifies in principle the modification of Newton's law of gravity for infinite space proposed by Seeliger. The modifying exponential term exp(-Hr/c) is uniquely quantified by the Hubble parameter and the speed of light.
Using Markov State Models to Study Self-Assembly
Creators: name: Perkett, Matthew R.
name: Hagan, Michael F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Markov state models (MSMs) have been demonstrated to be a powerful method for computationally studying intramolecular processes such as protein folding and macromolecular conformational changes. In this article, we present a new approach to construct MSMs that is applicable to modeling a broad class of multi-molecular assembly reactions. Distinct structures formed during assembly are distinguished by their undirected graphs, which are defined by strong subunit interactions. Spatial inhomogeneities of free subunits are accounted for using a recently developed Gaussian-based signature. Simplifications to this state identification are also investigated. The feasibility of this approach is demonstrated on two different coarse-grained models for virus self-assembly. We find good agreement between the dynamics predicted by the MSMs and long, unbiased simulations, and that the MSMs can reduce overall simulation time by orders of magnitude.
description: 12 pages, 11 figures
A Re-evaluation of the Debasement of the Roman Silver Coinage as Presented in David Richard Walker’s Metrology of the Roman Silver Coinage
Creators: name: Langmuir, Robin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: D.R. Walker
X-Ray Fluorescence
Wet Chemical Analysis
Rome
Coins

description: David Richard Walker’s Metrology of the Roman Silver Coinage analyzed the silver content of over 5000 Roman denarii, antoniniani, and drachmae using x-ray fluorescence (XRF) spectrometry. His results have been widely cited and used by scholars in the fields of Roman economic theory and numismatics. This thesis seeks to prove that Walker’s XRF results were not only inaccurate, but inconsistently so. Corrosion and surface enrichment on silver-copper coins have caused surface-level elemental examinations, like XRF, to produce incorrect results. The results from Walker’s XRF analysis have been compared against results from four individual wet chemical studies. The comparisons display striking, and significant, differences. I am forced to conclude that Walker’s data does not in any way align with the true silver content of the coins he analyzed. As a result, this thesis will re-examine several theories and hypotheses posed by scholars who used Walker’s data and propose new, more appropriate, uses for Walker and XRF analysis outside of the examination of corroded silver-copper coins.
Ab initio study of CrNF: the first half-metallic ferromagnet nitride fluoride mimicking CrO2
Creators: name: Matar, Samir F
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on the different covalent versus ionic chemical bonding and isoelectronic rutile CrO2, CrNF is proposed starting from ordered rutile derivative structures subjected to full geometry optimizations. The ground state structure defined from cohesive energies is of MgUO4-type, characterized by short covalent Cr-N and long ionic Cr-F distances. Like CrO2 it is a half-metallic ferromagnet with M = 2 Bohr Magnetons integer magnetization per formula unit with reduced band gap at minority spins. Major differences of magnetic response to pressure characterize CrNF as a soft ferromagnet versus hard magnetic CrO2. The chemical bonding properties point to prevailing covalent Cr-N versus ionic Cr-F bonding. Synthesis routes with two different protocols are proposed and analyzed.
Neutrino Production via $e^-e^+$ Collision at $Z$-boson Peak
Creators: name: Chang, Chao-Hsi
name: Feng, Tai-Fu
name: Hou, Feng-Yao
name: Liu, Chang
name: Pan, Zan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of the three normal neutrinos via $e^-e+$ collision at $Z$-boson peak (neutrino production in a Z-factory) is investigated thoroughly. The differences of $ν_e$-pair production from $ν_μ$-pair and $ν_τ$-pair production are presented in various aspects. Namely the total cross sections, relevant differential cross sections and the forward-backward asymmetry etc for these neutrinos are presented in terms of figures as well as numerical tables. The restriction on the room for the mixing of the three species of light neutrinos with possible externals (heavy neutral leptons and/or stereos) from refined measurements of the invisible width of $Z$-boson is discussed.
description: 5 pages, 6 figures
Ferromagnetism and impurity band in a new magnetic semiconductor: InMnP
Creators: name: Khalid, M.
name: Weschke, E.
name: Skorupa, W.
name: Helm, M.
name: Zhou, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have synthesized ferromagnetic InMnP, a member of III-Mn-V ferromagnetic semiconductor family, by Mn ion implantation and pulsed laser annealing. Clear ferromagnetic hysteresis loops and a perpendicular magnetic anisotropy are observed up to a Curie temperature of 42 K. Large values of negative magnetoresistance and magnetic circular dichroism as well as anomalous Hall effect are further evidences of a ferromagnetic order in InMnP. An effort is made to understand the transport mechanism in InMnP using the theoretical models. We find that the valence band of InP does not merge with the impurity band of the heavily doped ferromagnetic InMnP. Our results suggest that impurity band conduction is a characteristic of Mn-doped III-V semiconductors which have deep Mn-acceptor levels.
description: 12 pages, 5 figures
Dynamic exchange via spin currents in acoustic and optical modes of ferromagnetic resonance in spin-valve structures
Creators: name: Timopheev, A. A.
name: Pogorelov, Yu. G.
name: Cardoso, S.
name: Freitas, P. P.
name: Kakazei, G. N.
name: Sobolev, N. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two ferromagnetic layers magnetically decoupled by a thick normal metal spacer layer can be, nevertheless, dynamically coupled via spin currents emitted by the spin-pump and absorbed through the spin-torque effects at the neighboring interfaces. A decrease of damping in both layers due to a partial compensation of the angular momentum leakage in each layer was previously observed at the coincidence of the two ferromagnetic resonances. In case of non-zero magnetic coupling, such a dynamic exchange will depend on the mutual precession of the magnetic moments in the layers. A difference in the linewidth of the resonance peaks is expected for the acoustic and optical regimes of precession. However, the interlayer coupling hybridizes the resonance responses of the layers and therefore can also change their linewidths. The interplay between the two mechanisms has never been considered before. In the present work, the joint influence of the hybridization and non-local damping on the linewidth has been studied in weakly coupled NiFe/CoFe/Cu/CoFe/MnIr spin-valve multilayers. It has been found that the dynamic exchange by spin currents is different in the optical and acoustic modes, and this difference is dependent on the interlayer coupling strength. In contrast to the acoustic precession mode, the dynamic exchange in the optical mode works as an additional damping source. A simulation in the framework of the Landau-Lifshitz-Gilbert formalism for two ferromagnetic layers coupled magnetically and by spin currents has been done to separate the effects of the non-local damping from the resonance modes hybridization. In our samples both mechanisms bring about linewidth changes of the same order of magnitude, but lead to a distinctly different angular behavior. The obtained results are relevant for a broad class of coupled magnetic multilayers with ballistic regime of the spin transport.
On the saturation number for singular cubic surfaces
Creators: name: Wang, Yuchao
name: Yao, Weili
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D25 (Primary) 11P32, 11P55 (Secondary)

description: We investigate the distribution of rational points on singular cubic surfaces, whose coordinates have few prime factors. The key tools used are universal torsors, the circle method and results on linear equations in primes.
description: 19 pages. It has been accepted for publication in SCIENCE CHINA Mathematics
Test of High Time Resolution MRPC with Different Readout Modes
Creators: name: Yang, S.
name: Sun, Y. J.
name: Li, C.
name: Heng, Y. K.
name: Qian, S.
name: Chen, H. F.
name: Chen, T. X.
name: Dai, H. L.
name: Fan, H. H.
name: Liu, S. B.
name: Liu, S. D.
name: Jiang, X. S.
name: Shao, M.
name: Tang, Z. B.
name: Zhang, H.
name: Zhao, Z. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In order to further enhance the particle identification capability of the Beijing Spectrometer (BESIII), it is proposed to upgrade the current end-cap time-of-flight (eTOF) detector with multi-gap resistive plate chamber (MRPC). The prototypes, together with the front end electronics (FEE) and time digitizer (TDIG) module have been tested at the E3 line of Beijing Electron Positron Collider (BEPCII) to study the difference between the single and double-end readout MRPC designs. The time resolutions (sigma) of the single-end readout MRPC are 47/53 ps obtained by 600 MeV/c proton/pion beam, while that of the double-end readout MRPC is 40 ps (proton beam). The efficiencies of three MRPC modules tested by both proton and pion beam are better than 98%. For the double-end readout MRPC, no incident position dependence is observed.
description: 16 pages, 16 figures, Submitted to Nucl. Instr. and Meth. A
title: New Zealand National Seismic Hazard Model 2022: earthquake recurrence derivation from paleoseismic data and probability of detection
Creators: name: Coffey, Genevieve L.
name: Rollins, Chris
name: Van Dissen, Russ J.
name: Rhoades, David A.
name: Thingbaijam, Kiran K.S.
name: Clark, Kate J.
name: Gerstenberger, Matt C.
name: Litchfield, Nicola J.
name: Nicol, Andy
Publisher: name: GNS Science
Year: 2022

description: This report presents results of recurrence interval derivation and probability of surface rupture detection studies undertaken for the New Zealand National Seismic Hazard Model 2022 (NSHM) update. Recurrence intervals are one of numerous inversion constraints that are used to constrain the rate of fault ruptures. Here, we utilise earthquake timings, single-event displacement and slip-rate data from the Paleoseismic Site Database, along with geologic and geodetic slip rates from the New Zealand Community Fault Model v1.0 and NSHM Geodetic Deformation Model, to derive recurrence intervals for 81 sites along crustal faults in the NSHM. In these recurrence interval derivations, a weighted combination of recurrence time distributions is used, including lognormal, Brownian Passage Time and Poissonian distributions. Evaluations of recurrence intervals for the Hikurangi subduction zone are estimated from past studies on coastal tectonics, paleotsunami deposits and offshore turbidites. The results of these coastal studies are discussed in this report, and recurrence interval estimations are presented for the Marlborough, Wairarapa Coast and Hawkes Bay sections of the Hikurangi subduction zone. In addition to this, because paleoearthquake timings are used as inversion constraints, it is important to understand what proportion of ‘real world’ earthquakes are reflected in the paleoseismic record used to derive recurrence intervals. Therefore, the probabilities that surface ruptures will be detected at paleoseismic sites was determined both for the Taupō Volcanic Zone (TVZ) and for the rest of the New Zealand region outside of the TVZ as a function of earthquake magnitude, largely following the methodology presented in UCERF3 (Uniform California Earthquake Rupture Forecast, version 3) but utilising New-Zealand-specific estimations of likelihood of surface rupture as a function of magnitude, the results of which are also presented in this report. Compared to UCERF3 results, New Zealand earthquakes outside of the TVZ appear to be significantly less ‘detectable’ than comparable earthquakes in California, whereas earthquakes in the TVZ appear to be more ‘detectable’ than similarly sized earthquakes in California. (The authors)
The Link between Magnetic Fields and Cloud/Star Formation
Creators: name: Li, Hua-bai
name: Goodman, Alyssa
name: Sridharan, T. K.
name: Houde, Martin
name: Li, Zhi-Yun
name: Novak, Giles
name: Tang, Kwok Sun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The question whether magnetic fields play an important role in the processes of molecular cloud and star formation has been debated for decades. Recent observations have revealed a simple picture that may help illuminate these questions: magnetic fields have a tendency to preserve their orientation at all scales that have been probed - from 100-pc scale inter-cloud media down to sub-pc scale cloud cores. This ordered morphology has implications for the way in which self-gravity and turbulence interact with magnetic fields: both gravitational contraction and turbulent velocities should be anisotropic, due to the influence of dynamically important magnetic fields. Such anisotropy is now observed. Here we review these recent observations and discuss how they can improve our understanding of cloud/star formation.
description: Accepted for publication as a chapter in Protostars and Planets VI, University of Arizona Press (2014), eds. H. Beuther, R. Klessen, C. Dullemond, Th. Henning
title: Effects of Peer Support Group on Rates of Suicide Attempts, Suicidal Thoughts, and Incidences of Self-Harm for Sexual-Minority High School Students
Creators: name: Fleming, Samantha
name: O'Neill, Rebecca
name: Jett, Allyson
name: Mann, Haley
name: Peters, Ashlee
name: Dixon, Deja
Publisher: name: Old Dominion University Libraries
Year: 2017

description: The torment sexual minority youth experience can take a psychological toll without access to a support system. The purpose of this proposal is to determine whether an after-school peer support group for sexual minority youth could decrease incidences of suicidal thoughts, attempts, and/or self-inflicted injuries.
Key Frame Mechanism For Efficient Conformer Based End-to-end Speech Recognition
Creators: name: Fan, Peng
name: Shan, Changhao
name: Sun, Sining
name: Yang, Qing
name: Zhang, Jianwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recently, Conformer as a backbone network for end-to-end automatic speech recognition achieved state-of-the-art performance. The Conformer block leverages a self-attention mechanism to capture global information, along with a convolutional neural network to capture local information, resulting in improved performance. However, the Conformer-based model encounters an issue with the self-attention mechanism, as computational complexity grows quadratically with the length of the input sequence. Inspired by previous Connectionist Temporal Classification (CTC) guided blank skipping during decoding, we introduce intermediate CTC outputs as guidance into the downsampling procedure of the Conformer encoder. We define the frame with non-blank output as key frame. Specifically, we introduce the key frame-based self-attention (KFSA) mechanism, a novel method to reduce the computation of the self-attention mechanism using key frames. The structure of our proposed approach comprises two encoders. Following the initial encoder, we introduce an intermediate CTC loss function to compute the label frame, enabling us to extract the key frames and blank frames for KFSA. Furthermore, we introduce the key frame-based downsampling (KFDS) mechanism to operate on high-dimensional acoustic features directly and drop the frames corresponding to blank labels, which results in new acoustic feature sequences as input to the second encoder. By using the proposed method, which achieves comparable or higher performance than vanilla Conformer and other similar work such as Efficient Conformer. Meantime, our proposed method can discard more than 60\% useless frames during model training and inference, which will accelerate the inference speed significantly. This work code is available in {https://github.com/scufan1990/Key-Frame-Mechanism-For-Efficient-Conformer}
description: This manuscript has been accepted by IEEE Signal Processing Letters for publication
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (79)]
Creators: name: Baccus, Albertus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1228
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Albertus Baccus de vico sancte crucis [in Cremona] verkauft Capellus de Azanello ein Stück Land, gelegen in der Stadt Cremona.