cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The nearest discovered black hole is likely not in a triple configuration
Creators: name: Safarzadeh, Mohammadtaher
name: Toonen, Silvia
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HR 6819 was recently claimed to be a hierarchical triple system of a Be star in a wide orbit around an inner binary system of a black hole (BH) and a B III type star. We argue that this system is unlikely to be a hierarchical triple due to three reasons: (i) Given that this system is discovered in a magnitude limited Bright Star Catalog, the expected number of such systems in the Milky Way amounts to about $10^4$ while the estimate for the MW budget for such systems is between $10^2-10^3$ systems under generous assumptions. Such a large gap cannot be reconciled as it would otherwise likely overflow the MW budget for BHs; (ii) The dynamical stability of this system sets lower bounds on the orbital separation of the outer Be star, while it not being resolved by Gaia places an upper limit on its projected sky separation. We show that these two constraints would imply a narrow range for the outer orbit without resorting to geometrical fine-tuning; (iii) The triple system should have survived the stellar evolution prior to the formation of the BH in the inner binary. We perform numerical simulations starting with conservative initial conditions of this system and show that a small parameter space for BH progenitor star's mass loss, BH natal kicks, and initial orbital separation can reproduce HR 6819. Therefore, we propose this system is a chance superposition of a Be star with a binary.
description: Matches the published version at ApJ Letters
Minimal Supergravity with m_0^2 < 0
Creators: name: Feng, Jonathan L.
name: Rajaraman, Arvind
name: Smith, Bryan T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We extend the parameter space of minimal supergravity to negative values of m_0^2, the universal scalar mass parameter defined at the grand unified scale. After evolving to the weak scale, all scalars can be non-tachyonic with masses consistent with collider constraints. This region of parameter space is typically considered excluded by searches for charged dark matter, since the lightest standard model superpartner is a charged slepton. However, if the gravitino is the lightest supersymmetric particle, the charged slepton decays, and this region is allowed. This region provides qualitatively new possibilities for minimal supergravity, including spectra with light sleptons and very heavy squarks, and models in which the lightest slepton is the selectron. We show that the m_0^2 < 0 region is consistent with low energy precision data and discuss its implications for particle colliders. These models may provide signals of supersymmetry in even the first year of operation at the Large Hadron Collider.
description: 16 pages
EVALUATING THE EFFECTIVENESS OF CONSERVATION WATER-PRICING PROGRAMS
Creators: name: Huffaker, Ray G.
name: Whittlesey, Norman K.
name: Michelsen, Ari M.
name: Taylor, R. Garth
name: McGuckin, J. Thomas
name: Huffaker, Ray G.
name: Whittlesey, Norman K.
name: Michelsen, Ari M.
name: Taylor, R. Garth
name: McGuckin, J. Thomas
Publisher: name: Unknown
Year: 1998
Subjects: Resource /Energy Economics and Policy

description: Charging farmers increasing block prices for irrigation deliveries is advocated as a means of encouraging agricultural water conservation in the West. We formulated a model of a hypothetical irrigated river basin to investigate the hyrdro-economic circumstances in which such pricing leads to water conservation. Our results indicate that increasing delivery prices may encourage irrigators to make adjustments with countervailing impacts on consumptive water use and conservation. Whether these countervailing impacts combine to conserve water or increase its consumptive use must be resolved empirically. An alternative resolution of this ambiguity is to assess water prices in terms of consumptive use.
திருக்குறளில் குடும்பம்
Creators: name: முனைவர் தி. அறக்கலைச்செல்வி பிஎச்.டி.,
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: சமுதாயத்தின் அடிப்படையாக குடும்பம் விளங்குகிறது. ஆணும் பெண்ணும் திருமணத்தால் இணைந்து கணவன் மனைவியாக வாழ்வது குடும்ப வாழ்வின் தனிச் சிறப்பாகும். குடும்பம் அமைவதற்கு கணவன் மனைவிக்கு பல பொறுப்புகள் உள்ளன. கணவன் மனைவியை மையமிட்டே ஒரு குடும்பத்தின் சிறப்பு அமைகிறது.
Haberland, Eike: Untersuchungen zum äthiopischen Königtum
Creators: name: Hammerschmidt, Ernst
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
CROSSING THE NEXT MERIDIAN: THE ECONOMICS OF RURAL-URBAN INTERDEPENDENCE, INSTITUTIONS, AND INCOME DISTRIBUTION IN THE AMERICAN WEST
Creators: name: Weber, Bruce A.
name: Weber, Bruce A.
Publisher: name: Unknown
Year: 1998
Subjects: Community/Rural/Urban Development

description: This article explores and develops three ideas: (a) that the aridity of western North America and its attendant characteristics have fundamentally shaped the work of western agricultural economists and encouraged some distinctive western contributions to the study of economics; (b) that in order to understand economic relationships that are critical to rural western economic development, economists need to move beyond the standard equilibrium economic models and explore some emerging models of spatial development and institutional change in which the concept of "increasing returns" plays a key role; and (c) that the West provides a fine laboratory for testing these frameworks.
Preserving the "glory of the past" : the Native Daughters of British Columbia and the construction of pioneer history in the Hastings Mill Museum
Creators: name: Ellis, Cassidy Rose
Publisher: name: University of British Columbia
Year: 2009

description: In 1929 the old Hastings Mill Store building was towed by scow from Vancouver's inner harbour to its present location near Spanish Banks in Point Grey. In the following two years, the Native Daughters of British Columbia transformed the old building in to a museum to preserve historical relics of the early days of Vancouver. Their museum recounted pioneer histories of journey to, and settlement in, British Columbia in order to celebrate European development of the region, promote Vancouver's connection with the British Empire, and encourage future economic growth in the city. Today, the Native Daughters continue to operate this quirky and curious museum. Their exclusive tale of European pioneer history has been preserved in its original form, untouched by decades of museological change and post-colonial critique of cultural representation. The thesis uses the Hastings Mill Museum as a case study in heritage preservation in British Columbia. It claims that the museum itself is an artifact. It is a material remnant of an important movement in local history when such groups as the Native Daughters used the preservation of the past to address contemporary political and social concerns. Representing an idealized pioneer past provided an important source of political and social power for the Native Daughters. Through the Hastings Mill Museum, the Native Daughters helped its members - and the province's community of native-born, Anglo-European - affirm their status as a genealogical and historical elite. The Native Daughters used a variant of the North American "pioneer myth," a nostalgic interpretation of local history that distilled the city's history into a simple narrative of anglo-European settlement, sacrifice and development, to document their claim to the region's political, institutional, and economic power. Their use of heritage preservation as a source of power was shaped by gender. The Daughters used their position as "guardians" and "nurturers" of the region's heritage in order to promote and strengthen the position of their community of white, native-born British Columbians.
Long-term stabilization of the length of an optical reference cavity
Creators: name: Hagel, Gaëtan
name: Houssin, Marie
name: Knoop, Martina
name: Champenois, Caroline
name: Vedel, Michel
name: Vedel, Fernande
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: To obtain a high degree of long-term length stabilisation of an optical reference cavity, its free-spectral range is locked by means of an accurate and stable frequency synthesizer. The locking scheme is twofold: a laser is locked on the N$^{th}$ mode of a reference Fabry-Perot cavity and part of the laser light is shifted in frequency to be in resonance with the (N+1)$^{th}$ mode of the cavity. This shift is generated by an acousto-optical modulator (AOM) mounted in a double-pass scheme, matching half of the free spectral range of the reference cavity. The resulting absolute stabilization of the length of the cavity reaches the 10$^{-11}$ level per second, limited by the lock transfer properties and the frequency stability of the AOM control synthesizer.
Galactic extinction laws: II. Hidden in plain sight, a new interstellar absorption band at 7700 Å broader than any known DIB
Creators: name: Apellániz, J. Maíz
name: Barbá, R. H.
name: Caballero, J. A.
name: Bohlin, R. C.
name: Fariña, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have detected a broad interstellar absorption band centred close to 7700 Å and with a FWHM of 176.6$\pm$3.9 Å. This is the first such absorption band detected in the optical range and is significantly wider than the numerous diffuse interstellar bands (DIBs). It remained undiscovered until now because it is partially hidden behind the A telluric band produced by O$_2$. The band was discovered using STIS@HST spectra and later detected in a large sample of stars of diverse type (OB stars, BA supergiants, red giants) using further STIS and ground-based spectroscopy. The EW of the band is measured and compared with our extinction and K I $λλ$7667.021,7701.093 measurements for the same sample. The carrier is ubiquitous in the diffuse and translucent Galactic ISM but is depleted in the environment around OB stars. In particular, it appears to be absent or nearly so in sightlines rich in molecular carbon. This behaviour is similar to that of the $σ$-type DIBs, which originate in the low/intermediate-density UV-exposed ISM but are depleted in the high-density UV-shielded molecular clouds. We also present an update on our previous work on the relationship between $E(4405-5495)$ and $R_{5495}$ and incorporate our results into a general model of the ISM.
description: 17 pages, accepted for publication in MNRAS
From Large Scale Rearrangements to Mode Coupling Phenomenology
Creators: name: Montanari, Andrea
name: Semerjian, Guilhem
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider the equilibrium dynamics of Ising spin models with multi-spin interactions on sparse random graphs (Bethe lattices). Such models undergo a mean field glass transition upon increasing the graph connectivity or lowering the temperature. Focusing on the low temperature limit, we identify the large scale rearrangements responsible for the dynamical slowing-down near the transition. We are able to characterize exactly the dynamics near criticality by analyzing the statistical properties of such rearrangements. Our approach can be generalized to a large variety of glassy models on sparse random graphs, ranging from satisfiability to kinetically constrained models.
description: 4 pages, 4 figures, minor corrections, accepted version
Radiative Magnification of Neutrino Mixings in Split Supersymmetry
Creators: name: Mohapatra, R. N.
name: Parida, M. K.
name: Rajasekaran, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Radiative corrections to neutrino mixings in seesaw models depend on the nature of new physics between the weak and the GUT-seesaw scales and can be taken into account using the renormalization group equations. This new physics effect becomes particularly important for models with quasi-degenerate neutrino masses where small neutrino mixings at the seesaw scale can get magnified by radiative renormalization effects alone to match observations. This mechanism of radiative magnification which provides a simple understanding of why lepton mixings are so different from quark mixings was demonstrated by us for the standard supersymmetry scenario where the particle spectrum becomes supersymmetric above the weak scale. In this paper, we examine this phenomenon in split supersymmetry scenarios and find that the mechanism works also for this scenario provided the SUSY scale is at least 2-3 orders below the GUT-seesaw scale and one has larger values of ${\tanβ}$.
description: 11 pages and 5 figures, references updated and better figures included
Handling Empty Apple Boxes in Pacific Northwest Packing and Storage Houses
Creators: name: Hunter, D. Loyd
name: Duerden, Raoul S.
name: Kafer, Francis
name: Herrick, Joseph F.
name: Hunter, D. Loyd
name: Duerden, Raoul S.
name: Kafer, Francis
name: Herrick, Joseph F.
Publisher: name: Unknown
Year: 1954
Subjects: Labor and Human Capital
Research Methods/ Statistical Methods

description: Excerpts from the report Summary: Methods and equipment for moving and handling empty apple boxes at storage houses in Washington State were studied to provide a guide to the industry in utilizing the practices that are most efficient and least expensive. Handling of empty boxes accounts for a substantial part of the costs of the apple storage operation. Moving empty apple boxes from storage and loading them on road trucks or orchard trailers is accomplished in three ways: Manually, or by using clamp-type 2-wheel hand trucks, or by using industrial fork-lift trucks and pallets. In the manual operation, boxes are moved out of box houses and loaded on trucks. By the other two methods, boxes are moved from storage points inside the warehouse.
Novel mechanism for CMB modulation in the Standard Model
Creators: name: Karam, Alexandros
name: Markkanen, Tommi
name: Marzola, Luca
name: Nurmi, Sami
name: Raidal, Martti
name: Rajantie, Arttu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that light spectator fields can source sizeable CMB anisotropies through modulated reheating even in the absence of direct couplings to the inflaton. The effect arises when the phase space of the inflaton decay is modulated by the spectator which generates masses for the decay products. We call the mechanism \textit{indirect modulation} and show that it can source perturbations even four orders of magnitude larger than the observed. Importantly, the indirect mechanism is present in the Standard Model extended with right-handed neutrinos. For a minimally coupled Higgs boson this leads to a novel lower bound on the quartic coupling and constrains the neutrino Yukawas below unity.
description: discussion updated, references added
Growth of perturbations in dark matter coupled with quintessence
Creators: name: Koivisto, Tomi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the evolution of linear perturbations in models with a nonminimal coupling between dark matter and scalar field dark energy. Growth of matter inhomogeneities in two examples of such models proposed in the literature are investigated in detail. Both of these models are based on a low-energy limit of effective string theory action, and have been previously shown to naturally lead to late acceleration of the universe. However, we find that these models can be ruled out by taking properly into account the impact of the scalar field coupling on the formation of structure in the dark matter density. In particular, when the transition to acceleration in these models begins, the interaction with dark energy enchances the small scale clustering in dark matter much too strongly. We discuss the the role of an effective small scale sound speed in such models with a coupled dark sector.
description: 14 pages, 10 figures; v2: references added
Proposed ordering of textured spin singlets in a bulk infinite layer nickelate
Creators: name: Jin, Hyo-Sun
name: Pickett, W. E.
name: Lee, K. -W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The infinite-layer structure nickelate Ba$_2$NiO$_2$(AgSe)$_2$ (BNOAS) with $d^8$ Ni ions and a peculiar susceptibility $χ(T)$ is studied with correlated density functional methods. The overriding feature of the calculations is violation of Hund's rule coupled with complete but unconventional spin-orbital polarization, leading to an unexpected low spin $^1B_1$, "off-diagonal singlet" (ODS) textured by an internal orbital structure of compensating $d_{x^2-y^2}^{\uparrow}$ and $d_{z^2}^{\downarrow}$ spins. This unconventional configuration has lower energy than conventional high-spin or low-spin alternatives. An electronic transition is obtained at a critical Ni-O separation $d_c^{Ni-O}=$2.03 Å, above which Ni becomes magnetic in square planar NiO$_2$ compounds. We propose scenarios for the signature of magnetic reconstruction in $χ(T)$ at $T_{m}$=130 K without any Curie-Weiss background (no moment) that invoke ordering of Ni $d^8$ moieties that are largely this generalized Kondo singlet. The underlying physics of this system is modeled by a Kondo sieve model (2D Kondo necklace) of a "Kondo" $d_{z^2}$ spin on each site, coupled to a $d_{x^2-y^2}$ spin that is itself strongly coupled to neighboring like-spins within the layer. The observed magnetic order places BNOAS below the quantum critical point of the Kondo sieve model, providing a realization of the previously unreported long-range ordered near-singlet weak antiferromagnetic phase. We propose electron doping experiments that would drive the system toward a $d^{9-δ}$ configuration and possible superconductivity with similarity to the recently reported Ba$_2$CuO$_{3.2}$ that superconducts at 73 K.
description: 12 pages (minor corrections)
Detection of Geometric Phases in Flux Qubits with Coherent Pulses
Creators: name: Peng, Z. H.
name: Zhang, M. J.
name: Zheng, D. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a experimentally feasible scheme to demonstrate the geometric phase in flux qubits by means of detuning coherent microwave pulse techniques. Through measuring the probability of the persistent current state in flux qubits, one can detect the Berry phase that is acquired with system's Hamiltonian adiabatical circular evolution in the parameter space. Furthermore, we show that one should choose an appropriate amplitude of pulses in an experiment to obtain high readout resolution when detuning frequency of pulses is fixed and controlled phase shift gates can be implemented based on the geometric phases by inductance coupling two flux qubits.
description: 4pages,3figures
Statistical Analysis Plan: Clinical trial of Zoledronic acid (Aclasta) in children and adolescents with Duchenne muscular dystrophy
Creators: name: Lee, Katherine
name: Xiaofang Wang
Publisher: name: Murdoch Childrens Research Institute
Year: 2020
Subjects: Health Sciences

description: This document presents the approved version of the statistical analysis plan for the Clinical trial of Zoledronic acid (Aclasta) in children and adolescents with Duchenne muscular dystrophy
The Higgs and Coulomb/Confining Phases in "Twisted-Mass" Deformed CP(N-1) Model
Creators: name: Gorsky, A.
name: Shifman, M.
name: Yung, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider non-supersymmetric two-dimensional CP(N-1) model deformed by a term presenting the bosonic part of the twisted mass deformation of N=2 supersymmetric version of the model. Our deformation has a special form preserving a Z_N symmetry at the Lagrangian level. In the large mass limit the model is weakly coupled. Its dynamics is described by the Higgs phase, with Z_N spontaneously broken. At small masses it is in the strong coupling Coulomb/confining phase. The Z_N symmetry is restored. Two phases are separated by a phase transition. We find the phase transition point in the large-N limit. It lies at strong coupling. As was expected, the phase transition is related to broken versus unbroken Z_N symmetry in these two respective phases. The vacuum energies for these phases are determined too.
description: 20 pages, 3 figures, reference added
The Basic Elliptic Equations in an Equilateral Triangle
Creators: name: Dassios, G.
name: Fokas, A. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In his deep and prolific investigations of heat diffusion, Lamé was led to the investigation of the eigenvalues and eigenfunctions of the Laplace operator in an equilateral triangle. In particular he derived explicit results for the Dirichlet and Neumann cases using an ingenious change of variables. The relevant eigenfunctions are complicated infinite series in terms of his variables. Here we first show that boundary value problems with simple boundary conditions, such as the Dirichlet and the Neumann problems, can be solved in an elementary manner. In particular for these problems, the unknown Neumann and Dirichlet boundary values respectively, can be expressed in terms of a Fourier series. Our analysis is based on the so called global relation, which is an algebraic equation coupling the Dirichlet and the Neumann spectral values on the perimeter of the triangle. As Lamé correctly pointed out, infinite series are inadequate for expressing the solution of more complicated problems, such as mixed boundary value problems. Here we show, utilizing further the global relation, that such problems can be solved in terms of {\it generalized Fourier integrals}.
Multiparameter quantum estimation under dephasing noise
Creators: name: Ho, Le Bin
name: Hakoshima, Hideaki
name: Matsuzaki, Yuichiro
name: Matsuzaki, Masayuki
name: Kondo, Yasushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Simultaneous quantum estimation of multiple parameters has recently become essential in quantum metrology. Although the ultimate sensitivity of a multiparameter quantum estimation in noiseless environments can beat the standard quantum limit that every classical sensor is bounded by, it is unclear whether the quantum sensor has an advantage over the classical one under realistic noise. In this work, we present a framework of the simultaneous estimation of multiple parameters with quantum sensors in a certain noisy environment. Our multiple parameters to be estimated are three components of an external magnetic field, and we consider the noise that causes only dephasing. We show that there is an optimal sensing time in the noisy environment and the sensitivity can beat the standard quantum limit when the noisy environment is non-Markovian.
description: 12 pages, 6 figures
Stochastic domination: the contact process, Ising models and FKG measures
Creators: name: Liggett, Thomas
name: Steif, Jeffrey E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We prove for the contact process on $Z^d$, and many other graphs, that the upper invariant measure dominates a homogeneous product measure with large density if the infection rate $λ$ is sufficiently large. As a consequence, this measure percolates if the corresponding product measure percolates. We raise the question of whether domination holds in the symmetric case for all infinite graphs of bounded degree. We study some asymmetric examples which we feel shed some light on this question. We next obtain necessary and sufficient conditions for domination of a product measure for ``downward'' FKG measures. As a consequence of this general result, we show that the plus and minus states for the Ising model on $Z^d$ dominate the same set of product measures. We show that this latter fact fails completely on the homogenous 3-ary tree. We also provide a different distinction between $Z^d$ and the homogenous 3-ary tree concerning stochastic domination and Ising models; while it is known that the plus states for different temperatures on $Z^d$ are never stochastically ordered, on the homogenous 3-ary tree, almost the complete opposite is the case. Next, we show that on $Z^d$, the set of product measures which the plus state for the Ising model dominates is strictly increasing in the temperature. Finally, we obtain a necessary and sufficient condition for a finite number of variables, which are both FKG and exchangeable, to dominate a given product measure.
description: 27 pages
சங்க இலக்கியத்தில் பதுக்கை
Creators: name: முனைவர் தி. அறக்கலைச்செல்வி பிஎச்.டி.,
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: பதுக்கை என்ற சொல்லிற்கு நிகண்டுகளும் அகராதிகளும் சிறுத்தை மேடு என்று விளக்கம் அளிக்கின்றன. இறந்தவர்களைப் புதைத்து அவர்களின் மேல் அடுக்கி வைக்கப்படும் கற்குவியல்கள் குறிக்கின்றது இச் சொல் சங்க இலக்கியத்தில் ஈமச்சின்னங்களில் ஒன்றாகும். இவை போன்றே தாழி, நடுகல் போன்றவற்றையும் சங்க இலக்கியத்தில் பதிவாகியுள்ளன. இக்கட்டுரை பதுக்கை பற்றி ஆராய்கிறது.
Tschenkéli, K. †: Georgisch-deutsches Wörterbuch
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
The effect of hearing aids on listening working memory span
Creators: name: Douglas, Alvilda Myrel
Publisher: name: University of British Columbia
Year: 2009

description: The primary purpose of this study was to examine the effect of hearing aids on listening working memory for listeners who are hard-of-hearing. This was done by measuring participants' listening working memory spans, using the materials of the SPIN-R sentences, both with and without the use of hearing aids. Four men and four women with sensori-neural hearing loss participated in this experiment. All had unaided thresholds of 45 dBHL or better up to and including 1000 Hz, and wore bilateral hearing aids. Participants listened to sets of SPIN-R sentences. After each sentence, participants repeated the sentence-final word, and performed a judgment task relating to the sentence context. After each set of sentences, participants recalled the sentence-final words from that set. The largest set size for which participants could successfully recall all the sentence-final words at least three out of five times was taken as the measure of their listening working memory span, with an additional half-point if the participant successfully recalled all the sentence-final words at least two out of five times at the next larger set size. Participants performed this task both with and without their hearing aids and both in quiet and in the presence of background noise. It was found that neither the use of hearing aids nor the signal-to-noise ratio of the speech stimuli and background babble had a significant effect on participants' spans. There was nevertheless a trend for hearing aids to have a detrimental effect on span in quiet. Specifically, four of the eight participants had lower spans on the aided, quiet condition than on the unaided, quiet condition, while four had the same spans on these two conditions. The use of hearing aids was not found to have an effect on listening working memory span in noise. The detrimental effect of hearing aids in quiet is tentatively attributed to distortion introduced into the signal by the compression algorithms used in the hearing aids. Such distortion is proposed to increase processing demands on working memory. As the working memory system is theorized to allocate activation between processing demands and storage demands, an increase in processing demands due to amplification would reduce activation for storage and thus decrease listening working memory span. Working memory span is correlated with comprehension. Results from this study therefore indicate a potential cause for comprehension problems in listeners who are hard-ofhearing who use hearing aids.
LSOTB-TIR:A Large-Scale High-Diversity Thermal Infrared Object Tracking Benchmark
Creators: name: Liu, Qiao
name: Li, Xin
name: He, Zhenyu
name: Li, Chenglong
name: Li, Jun
name: Zhou, Zikun
name: Yuan, Di
name: Li, Jing
name: Yang, Kai
name: Fan, Nana
name: Zheng, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: In this paper, we present a Large-Scale and high-diversity general Thermal InfraRed (TIR) Object Tracking Benchmark, called LSOTBTIR, which consists of an evaluation dataset and a training dataset with a total of 1,400 TIR sequences and more than 600K frames. We annotate the bounding box of objects in every frame of all sequences and generate over 730K bounding boxes in total. To the best of our knowledge, LSOTB-TIR is the largest and most diverse TIR object tracking benchmark to date. To evaluate a tracker on different attributes, we define 4 scenario attributes and 12 challenge attributes in the evaluation dataset. By releasing LSOTB-TIR, we encourage the community to develop deep learning based TIR trackers and evaluate them fairly and comprehensively. We evaluate and analyze more than 30 trackers on LSOTB-TIR to provide a series of baselines, and the results show that deep trackers achieve promising performance. Furthermore, we re-train several representative deep trackers on LSOTB-TIR, and their results demonstrate that the proposed training dataset significantly improves the performance of deep TIR trackers. Codes and dataset are available at https://github.com/QiaoLiuHit/LSOTB-TIR.
description: accepted by ACM Mutlimedia Conference, 2020
Scherbaschidze, L. A.:Über das Problem der profanen Miniaturen des mittelalterlichen Georgiens
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
The efficacy of natural plant extracts (rosemary, sage, and thyme) in stabilizing hemp and soybean oils during storage
Creators: name: Doi, Brenda Kathleen
Publisher: name: University of British Columbia
Year: 2009

description: Lipid oxidation of edible oils is a concern due to undesirable effects on the organoleptic, nutritional, and toxicological aspects of fats and oils. Vegetable oils are particularly prone to lipid oxidation due to the susceptibility of the unsaturated double bonds of the fatty acids to oxidation. Hemp oil is high in unsaturated fatty acids, including gammalinolenic acid, which is an essential fatty acid. Theoretically, hemp oil would be prone to lipid oxidation; however, scientific data on the subject could not be found. Of the common vegetable oils of North America, the fatty acid composition of soybean oil most closely resembles that of hemp oil; however, gamma-linolenic acid is absent in soybean oil. The following studies monitored the oxidative stability of hemp and soybean oils based on the peroxide values, p-anisidine values, totox numbers, UV absorption measured at wavelengths of 232 and 268 nm, and fatty acid (%) compositions. A 48-week shelf-life study was performed to compare the oxidative stability of hemp and soybean oils with and without 0.125% (w/w) of rosemary, sage, or thyme extracts and stored in the dark at 38°C. Also, a 14-day accelerated storage study determined the quality of hemp and soybean oils exposed to 180°C for 0,4, 8, 12, and 24 hours and the effects of subsequent storage at 38°C in darkness. A 24-day accelerated storage study was used to monitor oxidation of hemp and soybean oils that were heated at 180°C for 4 hours prior to storage at 38°C in darkness, in order to determine the antioxidant efficacy of 0.10% and 0.05% (w/w) of rosemary, sage, or thyme extracts, and 0.10% and 0.05% (w/w) extract binary mixtures of rosemary + sage, rosemary + thyme, or sage + thyme. During long-term storage (48 weeks), the levels of lipid oxidation products (i.e. hydroperoxides, aldehydes, conjugated dienes and trienes) in hemp and soybean oils exhibited some changes during storage, but generally remained low throughout the study. This showed that hemp and soybean oils were not inherently prone to lipid oxidation. Based on the thermally-induced accelerated oxidation conditions, lipid oxidation was apparent in heated hemp and soybean oil samples as detected by the p-anisidine, totox number, UV absorption methods, and fatty acid contents. The peroxide values remained low after hightemperature heating, but progressively increased during storage. The addition of various concentrations and mixtures of rosemary, sage and thyme extracts before the thermal treatment, did not prevent oil deterioration due to heating, but effectively inhibited the generation of hydroperoxides during subsequent storage.
Measuring Instrument
Creators: name: Pintarić, Neven
name: Tomasovic, Zeljka
Publisher: name: Zenodo
Year: 2024
Subjects: Measuring instrument

description: The measuring instrument was defined for the purposes of assessing the applicability of the quality dimensions of digital objects in the context of Open Science.

This instrument consists of six categories and twenty dimensions of quality. Quality dimensions and additional constructs are based on a review of relevant and available literature.

The elements of the measuring instrument are: categories, category descriptions, quality dimensions, quality dimension descriptions, additional quality constructs, order of applicability, and limitation descriptions.

The order of applicability is expressed using an ordinal scale with the following values: 1 - not applicable, 2 - partially applicable, 3 - mostly applicable, 4 - fully applicable.
The Formation of a Stellar Association in the NGC 7000/IC 5070 Complex: Results from Kinematic Analysis of Stars and Gas
Creators: name: Kuhn, Michael A.
name: Hillenbrand, Lynne A.
name: Carpenter, John M.
name: Menendez, Angel Rodrigo Avelar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We examine the clustering and kinematics of young stellar objects (YSOs) in the North America/Pelican Nebulae, as revealed by Gaia astrometry, in relation to the structure and motions of the molecular gas, as indicated in molecular line maps. The Gaia parallaxes and proper motions allow us to significantly refine previously published lists of YSOs, demonstrating that many of the objects previously thought to form a distributed population turn out to be non-members. The members are subdivided into at least 6 spatio-kinematic groups, each of which is associated with its own molecular cloud component or components. Three of the groups are expanding, with velocity gradients of 0.3-0.5 km/s/pc, up to maximum velocities of ~8 km/s away from the groups' centers. The two known O-type stars associated with the region, 2MASS J20555125+4352246 and HD 199579, are rapidly escaping one of these groups, following the same position-velocity relation as the low-mass stars. We calculate that a combination of gas expulsion and tidal forces from the clumpy distribution of molecular gas could impart the observed velocity gradients within the groups. However, on a global scale, the relative motions of the groups do not appear either divergent or convergent. The velocity dispersion of the whole system is consistent with the kinetic energy gained due to gravitational collapse of the complex. Most of the stellar population has ages similar to the free-fall timescales for the natal clouds. Thus, we suggest the nearly free-fall collapse of a turbulent molecular cloud as the most likely scenario for star formation in this complex.
description: ApJ (in press). 22 figures and 7 tables. Full versions of Tables 2 and 7 and the extra panels for Figures 12, 16, and 17 are available at https://drive.google.com/drive/folders/1BflnyZKyCDN5r7Xw0J2INIubjDqWQYaB?usp=sharing
title: Konzeption, Entwicklung und Evaluation einer Web-Oberfläche für die wissenschaftliche Bildersuchmaschine NOA
Creators: name: Rohden, Birte
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: In dieser Bachelorarbeit wird die Konzeption, Entwicklung und Evaluierung einer Web-Oberfläche der wissenschaftlichen Bildersuchmaschine NOA durchgeführt. Ziel ist es, eine hohe Benutzerfreundlichkeit zu erreichen. NOA ist ein von der DFG gefördertes Projekt mit dem Ziel, Bilder aus Open-Access-Veröffentlichungen nutzbar zu machen. Der theoretische Teil behandelt die Grundlagen der Web-Usability, weiterhin werden Methoden der Evaluation dargestellt. Der praktische Teil der vorliegenden Arbeit beinhaltet die Konzeption und deren Umsetzung mittels aktueller Auszeichnungs- und Skriptsprachen. Auf die Präsentation der entwickelten Web-Oberfläche folgt die Evaluation der Usability mittels der heuristischen Evaluation und dem Usability-Testing, welches von der Thinking-Aloud-Methode begleitet wird. Daraufhin werden Empfehlungen zur Verbesserung der Benutzerfreundlichkeit benannt. Die Arbeit bildet einen vollständigen Prozess zur Erstellung einer Website ab. So gibt sie Interessierten des Berufsfeldes Konzeption bzw. der Front-End-Entwicklung einen Einblick in übliche Tätigkeiten.
Reversible Destruction of Dynamical Localization
Creators: name: Lignier, Hans
name: Chabé, Julien
name: Delande, Dominique
name: Garreau, Jean-Claude
name: Szriftgiser, Pascal
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamical localization is a localization phenomenon taking place, for example, in the quantum periodically-driven kicked rotor. It is due to subtle quantum destructive interferences and is thus of intrinsic quantum origin. It has been shown that deviation from strict periodicity in the driving rapidly destroys dynamical localization. We report experimental results showing that this destruction is partially reversible when the deterministic perturbation that destroyed it is slowly reversed. We also provide an explanation for the partial character of the reversibility.
description: 4 pages, 2 eps figures (color)
Control Strategies for COVID-19 Epidemic with Vaccination, Shield Immunity and Quarantine: A Metric Temporal Logic Approach
Creators: name: Xu, Zhe
name: Wu, Bo
name: Topcu, Ufuk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: Ever since the outbreak of the COVID-19 epidemic, various public health control strategies have been proposed and tested against the coronavirus SARS-CoV-2. We study three specific COVID-19 epidemic control models: the susceptible, exposed, infectious, recovered (SEIR) model with vaccination control; the SEIR model with shield immunity control; and the susceptible, un-quarantined infected, quarantined infected, confirmed infected (SUQC) model with quarantine control. We express the control requirement in metric temporal logic (MTL) formulas (a type of formal specification languages) which can specify the expected control outcomes such as "the deaths from the infection should never exceed one thousand per day within the next three months" or "the population immune from the disease should eventually exceed 200 thousand within the next 100 to 120 days". We then develop methods for synthesizing control strategies with MTL specifications. To the best of our knowledge, this is the first paper to systematically synthesize control strategies based on the COVID-19 epidemic models with formal specifications. We provide simulation results in three different case studies: vaccination control for the COVID-19 epidemic with model parameters estimated from data in Lombardy, Italy; shield immunity control for the COVID-19 epidemic with model parameters estimated from data in Lombardy, Italy; and quarantine control for the COVID-19 epidemic with model parameters estimated from data in Wuhan, China. The results show that the proposed synthesis approach can generate control inputs such that the time-varying numbers of individuals in each category (e.g., infectious, immune) satisfy the MTL specifications. The results also show that early intervention is essential in mitigating the spread of COVID-19, and more control effort is needed for more stringent MTL specifications.
Barnaveli, S. / Beridze, W. / Cincadze, W. / Tschubinašvili, N: Ars Georgica
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
title: Textbasierte Annotation von Abbildungen mit Kategorien von Wikimedia
Creators: name: Josi, Frieda
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: In der vorliegenden Masterarbeit geht es um die automatische Annotation von Bildern mithilfe der Kategoriesystematik der Wikipedia. Die Annotation soll anhand der Bildbeschriftungen und ihren Textreferenzen erfolgen. Hierbei wird für vorhandene Bilder eine passende Kategorie vorgeschlagen. Es handelt sich bei den Bildern um Abbildungen aus naturwissenschaftlichen Artikeln, die in Open Access Journals veröffentlicht wurden. Ziel der Arbeit ist es, ein konzeptionelles Verfahren zu erarbeiten, dieses anhand einer ausgewählten Anzahl von Bildern durchzuführen und zu evaluieren. Die Abbildungen sollen für weitere Forschungsarbeiten und für die Projekte der Wikimedia Foundation zur Verfügung stehen. Das Annotationsverfahren findet im Projekt NOA - Nachnutzung von Open Access Abbildungen Verwendung.
description: This master thesis deals with the automatic annotation of images using the Wikipedia category system. The annotation is carried out using the image’s captions and their respective text references. A suitable category is suggested for existing images. The images are illustrations from scientific articles published in open access journals. The aim of the work is to develop a conceptual procedure and to carry out and evaluate it on the basis of a selected number of images. The images shall be available for further research and for projects of theWikimedia Foundation. The annotation method is used in the NOA project - reuse of open access media.
Rotating regular solutions in Einstein-Yang-Mills-Higgs theory
Creators: name: Paturyan, Vanush
name: Radu, Eugen
name: Tchrakian, D. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct new axially symmetric rotating solutions of Einstein-Yang-Mills-Higgs theory. These globally regular configurations possess a nonvanishing electric charge which equals the total angular momentum, and zero topological charge, representing a monopole-antimonopole system rotating around the symmetry axis through their common center of mass.
description: 7 pages, 4 figures: misprints corrected
title: Entwicklung einer natürlichsprachlichen, logischen Programmierumgebung für den Einsatz im Schulunterricht
Creators: name: Kaufmann, Marcel
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 370 Erziehung, Schul- und Bildungswesen
subject: 004 Informatik

description: Diese Arbeit beschäftigt sich mit der Konzeption und Umsetzung einer Entwicklungsumgebung als Android-App für den Einsatz im Schulunterricht. Die Anwendung ist mit der natürlichen Sprache zu bedienen und stellt eine Entwicklungsumgebung für das logische Programmierparadigma zur Verfügung. Die entstandene Software wird in einem Feldversuch mit Kindern der 4. Klassenstufe an einer Grundschule erprobt. Da Änderungen und neue Erkenntnisse möglichst effizient in die Software einfließen sollen, wurde die App nach der Clean Architecture umgesetzt. Die Ergebnisse aus der Feldforschung zeigen, dass die Schülerinnen und Schüler mit hoher Motivation an einem fachlichen Thema gearbeitet haben. Sie erlernten die Konzepte der Fakten, Regeln und der Wissensbasis und vertieften damit ihr Wissen zu geometrischen Formen in der Mathematik. Der Architekturansatz der App stellt dessen Vorteile deutlich an Fallbeispielen dar. Die Arbeit zeigt das spannende Feld der angewandten Wissenschaft, das die beiden Disziplinen Informatik und Didaktik verknüpft.
Franz [Ziegler] an Theodor Heusser
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1872

description: Textincipit: "Mein lieber Theodor! / Da ich vor dem [Sempacherconcert], den wir / diese Woche zu feiern hatten, nicht Zeit zum / Schreiben fand, [...]" / Absender nicht eindeutig identifiziert.
Franz [Ziegler] an Theodor Heusser
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1873

description: Textincipit: "Mein lieber Theodor! / Wenn ich in letzter Zeit so oft an Dich geschrieben / hätte, wie ich an Dich dachte u. [...]" / Absender nicht eindeutig identifiziert.