cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Value relevance of voluntary disclosure in capital market of Iran
Creators: name: Rahmani, Ali
Publisher: name: figshare
Year: 2020
Subjects: subject: 150103 Financial Accounting
subject: FOS: Economics and business

description: Companies’ voluntary disclosure is one of the most important management tools to convey information about the financial performance to investors, creditors and other stakeholders. One of the important reasons of the request for disclosure of information is agency problem and asymmetry of information. This study aims to examine value relevance of voluntary disclosure using models of Olson (1995), Easton and Harris (1991) and the value of firms with regard to the effect of endogeneity of voluntary disclosure variable. For this purpose, the voluntary disclosure index was calculated and tested for 146 companies listed in Tehran Stock Exchange during the period 1388-1392 using content analysis method and the same weighting approach. The results of this research reveal that companies’ voluntary disclosure is used in their decision-making and valuation of companies. The results from the study of non-linearity in the relation between voluntary disclosure and firm value confirm the positive significant effect of enhanced voluntary disclosure levels on the value of firms.
Gauging Support for Innovative Farmland Preservation Techniques
Creators: name: Duke, Joshua M.
name: Lynch, Lori
name: Duke, Joshua M.
name: Lynch, Lori
Publisher: name: Unknown
Year: 2006
Subjects: Land Economics/Use

description: This paper describes four innovative farmland preservation techniques and gauges support through interviews of key stakeholders: program administrators, lawmakers, and landowners. Four techniques were selected for assessment from approximately 30 novel techniques: rights of first refusal; term conservation easements; land preservation tontines; and agricultural conservation pension. Rights of first refusal was the most favored, although respondents thought effective implementation would need targeting of land and a dedicated funding source. Agricultural conservation pension was also viewed favorably, although considered administratively difficult to implement. Tontines were perceived to be an interesting concept, but confusing, difficult to implement, and ill-defined. Term easements were viewed unfavorably because they did not preserve land permanently.
Squark and Gluino Production with Jets
Creators: name: Plehn, T.
name: Rainwater, D.
name: Skands, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present cross section predictions for squark and gluino production at the LHC, in association with up to two additional hard jets. These cross sections can be very large in comparison to the inclusive Born rates. Because hadron collider experiments utilize hard jets in the reconstruction of cascade decays or as a way to separate squark and gluino production, the understanding of these processes is crucial. We show to what degree hard jet radiation can be described by shower algorithms and point out how tuning these showers, for example to top quark pair production, could help reduce theoretical uncertainties for new physics searches at the LHC.
description: 5 p, 2 fig, 1 tab; version to appear in PLB; added comments on uncertainty estimates
Palindromic Prefixes and Episturmian Words
Creators: name: Fischler, Stéphane
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $w$ be an infinite word on an alphabet $A$. We denote by $(n_i)_{i \geq 1}$ the increasing sequence (assumed to be infinite) of all lengths of palindrome prefixes of $w$. In this text, we give an explicit construction of all words $w$ such that $n_{i+1} \leq 2 n_i + 1$ for any $i$, and study these words. Special examples include characteristic Sturmian words, and more generally standard episturmian words. As an application, we study the values taken by the quantity $\limsup n_{i+1}/n_i$, and prove that it is minimal (among all non-periodic words) for the Fibonacci word.
description: 27 pages; many minor changes; to appear in J. Comb. Th. Series A
Absolute physical parameters of three poorly studied detached eclipsing binaries
Creators: name: Yang, D. -Y.
name: Li, L. -F.
name: Han, Q. -W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The photometric and spectroscopic data for three double-lined detached eclipsing binaries were collected from the photometric and spectral surveys. The light and radial velocity curves of each binary system were simultaneously analyzed by using Wilson-Devinney (WD) code, and the absolute physical and orbital parameters of these binaries were derived. The masses of both components of ASASSN-V J063123.82+192341.9 were found to be $M_1 = 1.088 \pm 0.016$ and $M_2 = 0.883 \pm 0.016\ M_{\odot}$; and those of ASAS J011416+0426.4 were determined to be $M_1 = 0.934 \pm 0.046$ and $M_2 = 0.754 \pm 0.043 M_{\odot}$; those of MW Aur were derived to be $M_1 = 2.052 \pm 0.196$ and $M_2 = 1.939 \pm 0.193\ M_{\odot}$. At last, the evolutionary status of these detached binaries was discussed based on their absolute parameters and the theoretical stellar models. Keywords: Stars: binaries: eclipsing $-$ stars: fundamental parameters$-$ stars: evolution $-$ stars: individual: ASASSN-V J063123.82+192341.9, ASAS J011416+0426.4 and MW Aur
The Shape of Gravity in a Warped Deformed Conifold
Creators: name: Firouzjahi, Hassan
name: Tye, S. -H. Henry
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the spectrum of the gravitational modes in Minkowski spacetime due to a 6-dimensional warped deformed conifold, i.e., a warped throat, in superstring theory. After identifying the zero mode as the usual 4D graviton, we present the KK spectrum as well as other excitation modes. Gluing the throat to the bulk (a realistic scenario), we see that the graviton has a rather uniform probability distribution everywhere while a KK mode is peaked in the throat, as expected. Due to the suppressed measure of the throat in the wave function normalization, we find that a KK mode's probability in the bulk can be comparable to that of the graviton mode. We also present the tunneling probabilities of a KK mode from the inflationary throat to the bulk and to another throat. Due to resonance effect, the latter may not be suppressed as natively expected. Implication of this property to reheating after brane inflation is discussed.
BID-ASK SPREADS IN COMMODITY FUTURES MARKETS
Creators: name: Bryant, Henry L.
name: Haigh, Michael S.
name: Bryant, Henry L.
name: Haigh, Michael S.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Issues of recent interest and controversy regarding bid-ask spreads in commodity futures markets are investigated. First we apply competing spread estimators to open outcry transactions data and compare resulting estimates to observed spreads. This enables market microstructure researchers, regulators, exchange officials, and traders the opportunity to evaluate the usefulness and accuracy of bid-ask estimators in markets that do not report bid and ask data, providing an idea of the "worst-case" transaction costs that are likely to be incurred. We also compare spreads observed before and after trading was automated (and made anonymous) on commodity futures markets, and discover that spreads have generally widened since trading was automated, and that they have an increased tendency to widen in periods of high volatility. Our findings suggest that commodity futures markets have an inherently different character than financial futures markets, and therefore merit separate investigation.
Object recognition through pose and shape estimation
Creators: name: D, Anitta
name: A, Annis Fathima
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Computer vision helps machines or computer to see like humans. Computer Takes information from the images and then understands of useful information from images. Gesture recognition and movement recognition are the current area of research in computer vision. For both gesture and movement recognition finding pose of an object is of great importance. The purpose of this paper is to review many state of art which is already available for finding the pose of object based on shape, based on appearance, based on feature and comparison for its accuracy, complexity and performance
The 4DN-OME ontology: an OME-OWL extension with emphasis on usability, minimum information guidelines and quality control for super-resolution fluorescence microscopy
Creators: name: Hammer, Mathias
name: Rigano, Alessandro
name: Farzam, Farzin
name: Huisman, Maximiliaan
name: Grünwald, David
name: Castillia, Caterina Strambio De
Publisher: name: figshare
Year: 2020
Subjects: subject: Data Format
subject: FOS: Computer and information sciences
subject: 80604 Database Management
subject: Computational Biology
subject: 80603 Conceptual Modelling

description: Peer-reviewed abstract accepted for presentation.12th Annual SWAT4(HC)LS (Semantic Web Applications and Tools for Healthcare and Life Sciences) Conference.
Edinburgh, Scotland, UK
December 9-12, 2019
Strong decays of P wave baryons in the $1/N_c$ expansion
Creators: name: Scoccola, N. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The hadronic decays of non-strange negative parity baryons are analyzed in the framework of the 1/Nc expansion. A complete basis of spin-flavor operators for the pseudoscalar meson S and D partial wave amplitudes is established to order 1/Nc and the unknown effective coefficients are determined by fitting to the empirically known widths. A set of relations between widths that result at the leading order, i.e. order Nc^0, is given and tested with the available data.
description: 8 pages. Contribution to Large Nc QCD 2004 workshop, July 2004, ECT*, Trento, Italy
Tan's two-body contact across the superfluid transition of a planar Bose gas
Creators: name: Zou, Y. -Q.
name: Bakkali-Hassani, B.
name: Maury, C.
name: Cerf, É. Le
name: Nascimbene, S.
name: Dalibard, J.
name: Beugnon, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Tan's contact is a quantity that unifies many different properties of a low-temperature gas with short-range interactions, from its momentum distribution to its spatial two-body correlation function. Here, we use a Ramsey interferometric method to realize experimentally the thermodynamic definition of the two-body contact, i.e. the change of the internal energy in a small modification of the scattering length. Our measurements are performed on a uniform two-dimensional Bose gas of $^{87}$Rb atoms across the Berezinskii-Kosterlitz-Thouless superfluid transition. They connect well to the theoretical predictions in the limiting cases of a strongly degenerate fluid and of a normal gas. They also provide the variation of this key quantity in the critical region, where further theoretical efforts are needed to account for our findings.
CAUSALITY AND PRICE DISCOVERY: AN APPLICATION OF DIRECTED ACYCLIC GRAPHS
Creators: name: Haigh, Michael S.
name: Bessler, David A.
name: Haigh, Michael S.
name: Bessler, David A.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business

description: Directed Acyclic Graphs (DAG's) and Error Correction Models (ECM's) are employed to analyze questions of price discovery between spatially separated commodity markets and the transportation market linking them together. Results from our analysis suggest these markets are highly interconnected but it is the inland commodity market that is strongly influenced by both the transportation and commodity export markets. However, the commodity markets affect the volatility of the transportation market over longer horizons. Our results suggest that transportation rates are critical in the price discovery process lending support for the recent development of exchange traded barge rate futures contracts.
Cutoff-independent regularization of four-fermion interactions for color superconductivity
Creators: name: Farias, R. L. S.
name: Dallabona, G.
name: Krein, G.
name: Battistel, O. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We implement a cutoff-independent regularization of four-fermion interactions to calculate the color-superconducting gap parameter in quark matter. The traditional cutoff regularization has difficulties for chemical potentials μof the order of the cutoff Λ, predicting in particular a vanishing gap at μ\sim Λ. The proposed cutoff-independent regularization predicts a finite gap at high densities and indicates a smooth matching with the weak coupling QCD prediction for the gap at asymptotically high densities.
description: 5 pages, 1 eps figure - Revised manuscript to match the published paper
Optical spectroscopy of BL Lac objects: TeV candidates
Creators: name: Paiano, Simona
name: Falomo, Renato
name: Treves, Aldo
name: Scarpa, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the spectroscopic optical properties of gamma-ray sources detected with high significance above 50 GeV in the Third Catalog of Hard Fermi-LAT Sources (3FHL) and that are good candidates as TeV emitters. We focus on the 91 sources that are labelled by the Fermi team as BL Lac objects (BLL) or Blazar candidates of uncertain type (BCU) , that are in the Northern hemisphere, and are with unknown or uncertain redshift. We report here on GTC spectra (in the spectral range 4100 - 7750 AA) of 13 BCU and 42 BLL. We are able to classify the observed targets as BLL and each source is briefly discussed. The spectra allowed us to determine the redshift of 25 objects on the basis of emission and/or absorption lines, finding 0.05 < z < 0.91. Most of the emission lines detected are due to forbidden transition of [O III] and [N II]. The observed line luminosity is found lower than that of QSOs at similar continuum and could be reconciled with the line-continuum luminosity relationship of QSOs if a significant beaming factor is assumed. Moreover for 5 sources we found intervening absorption lines that allows to set a spectroscopic lower limit of the redshift. For the remaining 25 sources, for which the spectra are lineless, a lower limit to z is given, assuming that the host galaxies are giant ellipticals.
description: 22 pages, 6 figures, accepted for publication in MNRAS
Kettenhofen, Erich: Tirdād und die Inschrift von Paikuli
Creators: name: Van Esbroeck, Michel
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 80 (1996): Oriens christianus, Band 80
THE ECONOMICS OF CONTROLLING A BIOLOGICAL INVASION
Creators: name: Olson, Lars J.
name: Roy, Santanu
name: Olson, Lars J.
name: Roy, Santanu
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: The paper develops a simple economic model of a biological invasion. The natural growth of the invasion is non-convex and the immediate cost of controlling the invasion depends on the level of current control as well as the current size of the invasion. Greater control raises control costs today while reducing damages - now and in the future. In addition, by decreasing the size of the invasion, increased control today raises the marginal cost of control in the future. As a consequence, the optimal path of an invasion is not necessarily monotonic. When the marginal control cost declines sharply with the size of invasion, it may be optimal to allow an invasion to grow naturally before it is controlled. We characterize conditions under which it is optimal to eradicate an invasive species (immediately and eventually) and conditions under which it is optimal to manage an invasion without complete eradication.
Ecology and physiology of phytoplankton in Ambon Bay, Indonesia
Creators: name: Wagey, Gabriel Antonius
Publisher: name: University of British Columbia
Year: 2009

description: This study investigated the natural phytoplankton assemblage of Ambon Bay, eastern Indonesia, over a two-year period, including the composition of the dominant microplankton and the influence of environmental factors with emphasis on the role of mangrove in Ambon Bay. A hoped-for bloom of the toxic Pyrodinium bahamense var. compressum did not materialize but other potentially harmful species from Ambon Bay were isolated and investigated in culture to determine their growth rates under various environmental conditions and their toxin potential. This constitutes the first study of its type, not only for the Moluccan region, but Indonesia in general. In this study, 105 phytoplankton species from Ambon Bay were identified, including several dinoflagellates new to Indonesia, such as Gymnodinium catenatum, Alexandrium cohorticula and Fragilidium cf. mexicanum. The former two are known from S.E. Asia but the latter has not been seen since its description from Mexico. Due to its close resemblance to the toxic genus Alexandrium it was also tested in culture for toxicity. The common, occasionally abundant, presence of G. catenatum was unexpected and raises the possibility of human health hazard due to this species in Ambon Bay. During the 1997-1998 sampling period, a strong indication of local upwelling occurred in Ambon Bay. The environmental factors that significantly influenced phytoplankton abundance were ammonium, salinity, and water temperature. Four dinoflagellate species isolated from Ambon Bay were able to grow in culture in both natural and artificial media and, because of its importance as a shellfish poison producer in S.E. Asia, a culture of Pyrodinium was also studied. Addition of Mangrove Soil Extract (MSE) to the culture media has significantly enhanced the growth of Pyrodinium (a Manila Bay isolate) compared to media without MSE. Moreover, it preferred MSE with molecular weight higher than 3000 for increasing growth in culture. This study has provided the first comprehensive, detailed information of phytoplankton in eastern Indonesia and Ambon Bay in particular. It has characterized general features of the phytoplankton community, identified dominants and investigated possible environmental influences, particularly mangrove emphasizing the potentially harmful species. It has significant implications for human health related to shellfish consumption in Ambon.
Large sample theory of intrinsic and extrinsic sample means on manifolds--II
Creators: name: Bhattacharya, Rabi
name: Patrangenaru, Vic
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62H11 (Primary) 62H10. (Secondary)

description: This article develops nonparametric inference procedures for estimation and testing problems for means on manifolds. A central limit theorem for Frechet sample means is derived leading to an asymptotic distribution theory of intrinsic sample means on Riemannian manifolds. Central limit theorems are also obtained for extrinsic sample means w.r.t. an arbitrary embedding of a differentiable manifold in a Euclidean space. Bootstrap methods particularly suitable for these problems are presented. Applications are given to distributions on the sphere S^d (directional spaces), real projective space RP^{N-1} (axial spaces), complex projective space CP^{k-2} (planar shape spaces) w.r.t. Veronese-Whitney embeddings and a three-dimensional shape space Σ_3^4.
description: Published at http://dx.doi.org/10.1214/009053605000000093 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Time lags of the type-B QPO in MAXI J1348-630
Creators: name: Belloni, Tomaso M.
name: Zhang, Liang
name: Kylafis, Nikolaos D.
name: Reig, Pablo
name: Altamirano, Diego
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The fast variability observed in the X-ray emission from black-hole binaries has a very complex phenomenology, but offers the possibility to investigate directly the properties of the inner accretion flow. In particular, type-B oscillations in the 2-8 Hz range, observed in the Soft-Intermediate state, have been associated to the emission from a relativistic jet. We present the results of the timing and spectral analysis of a set of observations of the bright transient MAXI J1348-630 made with the NICER telescope. The observations are in the brightest part of the outburst and all feature a strong type-B QPO at ~4.5 Hz. We compute the energy dependence of the fractional rms and the phase lags at the QPO frequency, obtaining high signal-to-noise data and sampling for the first time at energies below 2 keV. The fractional rms decreases from more than 10% at 9 keV to 0.6% at 1.5 keV, and is constant below that energy. Taking the 2-3 keV band as reference, photons at all energies show a hard lag, increasing with the distance from the reference band. The behaviour below 2 keV has never been observed before, due to the higher energy bandpass of previous timing instruments. The energy spectrum can be fitted with a standard model for this state, consisting of a thin disc component and a harder power law, plus an emission line between 6 and 7 keV. We discuss the results, concentrating on the phase lags, and show that they can be interpreted within a Comptonization model.
description: 6, pages, 5 figures, accepted for publication in MNRAS
On Star Formation and the Non-Existence of Dark Galaxies
Creators: name: Taylor, Edward N
name: Webster, Rachel L
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate whether a baryonic dark galaxy or `galaxy without stars' could persist indefinitely in the local universe, while remaining stable against star formation. To this end, a simple model has been constructed to determine the equilibrium distribution and composition of a gaseous protogalactic disk. Specifically, we determine the amount of gas that will transit to a Toomre unstable cold phase via the H2 cooling channel in the presence of a UV--X-ray cosmic background radiation field. All but one of the models are predicted to become unstable to star formation. Moreover, we find that all our model objects would be detectable via HI line emission, even in the case that star formation is potentially avoided. These results are consistent with the non-detection of isolated extragalactic HI clouds with no optical counterpart (galaxies without stars) by HIPASS. Additionally, where star formation is predicted to occur, we determine the minimum interstellar radiation field required to restore gravothermal stability, which we then relate to a minimum global star formation rate. This leads to the prediction of a previously undocumented relation between HI mass and star formation rate that is observed for a wide variety of dwarf galaxies in the HI mass range 10^8--10^10 M_sun. The existence of such a relation strongly supports the notion that the well observed population of dwarf galaxies represent the minimum rates of self-regulating star formation in the universe. (Barely abridged)
description: 19 pages, 8 figures, TeX using emulateapj.cls, v2 accepted for publication in ApJ (16/8/5) with one figure deleted and a number of minor clarifying revisions
The validity of neuropsychological assessment tools for the assessment of general and domain-specific cognitive functioning after an acquired brain injury
Creators: name: Moore, Corran
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: Accurate assessment and categorisation of cognitive impairment after an acquired brain injury is vital for the creation of targeted rehabilitation plans and the planning and provision of care. To be useful neuropsychological assessment tools must be able to predict patient outcomes and accurately classify the presence/absence of impairment.Literature ReviewThe ability of domain-specific assessment tools used post-stroke, to predict later functional outcomes was reviewed. Tools assessing the domains of executive function, visuospatial perception/construction and visual memory were selected for review, due to previous evidence of their relationship with functional outcomes. It was concluded that all domains were predictive of a range of functional outcomes at many time-points post-stroke. Individual assessment tools showing evidence of predictive validity were identified for clinical use.Empirical ReportThis study assessed the diagnostic ability of the Short Parallel Assessments of Neuropsychological Status (SPANS) in acquired brain injury (ABI) samples. The ability of the SPANS to accurately distinguish between a sample of patients who had suffered an ABI and a sample of age and education matched healthy norms was investigated using five different clinical samples: ≤ 6-months post-ABI, ≥ 1-year post-ABI, high school educated, college/vocationally educated and university educated. The SPANS total score and individual indices had high diagnostic validity in the acute ABI sample, indicating it is a valid general and domain-specific screen in this setting. The /SPANS total score also had high diagnostic validity in the long-term ABI sample indicating it is a valid general cognitive screen in this setting. Scores for individual indices in this sample were mixed, this could be because of recovery of functioning in particular domains or a lack of sensitivity in subtests. Education level and time-since injury had a large impact on optimal cut-off scores, the implications for the use of ‘one- size-fits-all’ cut-offs is discussed.
Non-parametric spatially constrained local prior for scene parsing on real-world data
Creators: name: Zhang, Ligang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 68U10

description: Scene parsing aims to recognize the object category of every pixel in scene images, and it plays a central role in image content understanding and computer vision applications. However, accurate scene parsing from unconstrained real-world data is still a challenging task. In this paper, we present the non-parametric Spatially Constrained Local Prior (SCLP) for scene parsing on realistic data. For a given query image, the non-parametric SCLP is learnt by first retrieving a subset of most similar training images to the query image and then collecting prior information about object co-occurrence statistics between spatial image blocks and between adjacent superpixels from the retrieved subset. The SCLP is powerful in capturing both long- and short-range context about inter-object correlations in the query image and can be effectively integrated with traditional visual features to refine the classification results. Our experiments on the SIFT Flow and PASCAL-Context benchmark datasets show that the non-parametric SCLP used in conjunction with superpixel-level visual features achieves one of the top performance compared with state-of-the-art approaches.
description: 10 pages, journal
[Letter from Anna Antoinette Weber van Bosse]
Creators: name: Weber Van Bosse, Anna Antoinette
Publisher: name: Unknown
Year: 1903

description: Is grateful for the negatives and positives, which look very nice. Will send a copy of the plates as soon as the proofs are ready. Will ask Professor Martin to send the slides. She is returning Lithophyllum bamleri, Lithothamnion moluccense and Goniolithon frutescens. Comments on how fortunate it was that the mistake about Hildenbrandia was realised. Comments on how well Foslie has done the figure of Professor Martin's type specimen.
Haile, Getatchew: The Mariology of Emperor Zära Ya'ǝboq of Ethiopia
Creators: name: Van Esbroeck, Michel
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 80 (1996): Oriens christianus, Band 80
Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe$_3$GeTe$_2$ Nanoflakes
Creators: name: Zheng, Guolin
name: Xie, Wen-Qiang
name: Albarakati, Sultan
name: Algarni, Meri
name: Tan, Cheng
name: Wang, Yihao
name: Peng, Jingyang
name: Partridge, James
name: Farrar, Lawrence
name: Yi, Jiabao
name: Xiong, Yimin
name: Tian, Mingliang
name: Zhao, Yu-Jun
name: Wang, Lan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The weak interlayer coupling in van der Waals (vdW) magnets has confined their application to two dimensional (2D) spintronic devices. Here, we demonstrate that the interlayer coupling in a vdW magnet Fe$_3$GeTe$_2$ (FGT) can be largely modulated by a protonic gate.With the increase of the protons intercalated among vdW layers,interlayer magnetic coupling increases.Because of the existence of antiferromagnetic layers in FGT nanoflakes, the increasing interlayer magnetic coupling induces exchange bias in protonated FGT nanoflakes. Most strikingly, a rarely seen zero-field cooled (ZFC) exchange bias with very large values (maximally up to 1.2 kOe) has been observed when higher positive voltages (Vg>4.36 V) are applied to the protonic gate, which clearly demonstrates that a strong interlayer coupling is realized by proton intercalation. Such strong interlayer coupling will enable a wider range of applications for vdW magnets.
description: Published on 22 July 2020 in Physical Review Letters
Decay width of the pentaquark state $Θ^+(1540)$ with QCD sum rules
Creators: name: Wang, Zhi-Gang
name: Yang, Wei-Min
name: Wan, Shao-Long
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we take the point of view that the pentaquark state $Θ^+(1540)$ has negative parity, and choose the diquark-triquark type interpolating current to calculate the strong coupling constant $g_{ΘNK}$ in the QCD sum rule approach. Our numerical results indicate the values of the strong coupling constant $g_{ΘNK}$ are very small, $|g_{ΘNK}|=0.175\pm0.084$, and the width $Γ_Θ<4MeV$, which can explain the narrow width $Γ\leq 10 MeV$ naturally.
description: 10 pages, 2 figures, Third version, to appear in Phys.Rev.D
ESTIMATING RETURNS TO AGRICULTURAL RESEARCH, EXTENSION, AND TEACHING AT THE STATE LEVEL
Creators: name: Norton, George W.
name: Coffey, Joseph D.
name: Frye, E. Berrier
name: Norton, George W.
name: Coffey, Joseph D.
name: Frye, E. Berrier
Publisher: name: Unknown
Year: 1984
Subjects: Teaching/Communication/Extension/Profession

description: The majority of decisions concerning investment and allocation of public funds for agricultural research, extension, and teaching (RET) are made at the state-level, while most of the quantitative RET evaluations are made on a national basis. This paper illustrates an approach for conducting a disaggregated state-level evaluation of agricultural research, extension, and teaching. Ridge regression is employed to handle multicollinearity problems.
Gluon propagation inside a high-energy nucleus
Creators: name: Gelis, Francois
name: Mehtar-Tani, Yacine
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that, in the light-cone gauge, it is possible to derive in a very simple way the solution of the classical Yang-Mills equations for the collision between a nucleus and a proton. One important step of the calculation is the derivation of a formula that describes the propagation of a gluon in the background color field of the nucleus. This allows us to calculate observables in pA collisions in a more straightforward fashion than already proposed. We discuss also the comparison between light-cone gauge and covariant gauge in view of further investigations involving higher order corrections.
description: 12 pages, 2 figures
lensingGW: a Python package for lensing of gravitational waves
Creators: name: Pagano, Giulia
name: Hannuksela, Otto A.
name: Li, Tjonnie G. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Advanced LIGO and Advanced Virgo could observe the first lensed gravitational waves in the coming years, while the future Einstein Telescope could observe hundreds of lensed events. Ground-based gravitational-wave detectors can resolve arrival time differences of the order of the inverse of the observed frequencies. As LIGO/Virgo frequency band spans from a few $\rm Hz$ to a few $ \rm kHz$, the typical time resolution of current interferometers is of the order of milliseconds. When microlenses are embedded in galaxies or galaxy clusters, lensing can become more prominent and result in observable time delays at LIGO/Virgo frequencies. Therefore, gravitational waves could offer an exciting alternative probe of microlensing. However, currently, only a few lensing configurations have been worked out in the context of gravitational-wave lensing. In this paper, we present lensingGW, a Python package designed to handle both strong and microlensing of compact binaries and the related gravitational-wave signals. This synergy paves the way for systematic parameter space investigations and the detection of arbitrary lens configurations and compact sources. We demonstrate the working mechanism of lensingGW and its use to study microlenses embedded in galaxies.
description: 11 pages, 10 figures
[Letter from Anna Antoinette Weber van Bosse]
Creators: name: Weber Van Bosse, Anna Antoinette
Publisher: name: Unknown
Year: 1906

description: Has received Heydrich's latest papers: 1. Über Rhododermis Crouan 1903, 2. Stereophyllum, neues Genus der Corallinaceen 1904, 3. Polystrata, eine Squamariacee aus den Tropen 1905, 4. Note sur [L'Efpsilethon] van Heurckii Heydr, and will gladly forward them.
USE OF FORECASTS IN DECISION-MAKING: THE CASE OF STOCKER CATTLE IN FLORIDA
Creators: name: Spreen, Thomas H.
name: Arnade, Carlos Anthony
name: Spreen, Thomas H.
name: Arnade, Carlos Anthony
Publisher: name: Unknown
Year: 1984
Subjects: Livestock Production/Industries

description: The decision to overwinter feeder cattle hinges directly on the forecast of spring cattle prices. An analysis of price forecasts from several alternative models is presented. The models are evaluated using both the traditional mean square criterion and alternative criteria. The alternative criteria evaluate the profitability of the decision implemented based upon the forecast.
Spin gap formation in the quantum spin systems TiOX, X=Cl and Br
Creators: name: Lemmens, P.
name: Choi, K. Y.
name: Valenti, R.
name: Saha-Dasgupta, T.
name: Abel, E.
name: Lee, Y. S.
name: Chou, F. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the layered quantum spin systems TiOCl and TiOBr the magnetic susceptibility shows a very weak temperature dependence at high temperatures and transition-induced phenomena at low temperatures. There is a clear connection of the observed transition temperatures to the distortion of the octahedra and the layer separation. Band structure calculations point to a relation of the local coordinations and the dimensionality of the magnetic properties. While from magnetic Raman scattering only a small decrease of the magnetic exchange by -5-10% is derived comparing TiOCl with TiOBr, the temperature dependence of the magnetic susceptibility favors a much bigger change.
description: 5 figures, 15 pages, further information see http://www.peter-lemmens.de
THE EFFECTS OF THE 1980, 1981, AND 1982 TAX LAWS ON TEXAS RICE FARMERS
Creators: name: Richardson, James W.
name: Nixon, Clair J.
name: Richardson, James W.
name: Nixon, Clair J.
Publisher: name: Unknown
Year: 1984
Subjects: Political Economy

description: A whole farm Monte Carlo simulation model was used to simulate a typical rice farm on the Texas Gulf Coast for 10 years under the 1980, 1981, and 1982 income tax provisions. Results for this analysis indicate that the 1981 tax provisions clearly were more beneficial to farm operators than the 1980 or 1982 income tax provisions. While the 1981 and 1982 tax law changes clearly improved the cash flow of farm operators, they did not greatly improve the wealth positions of farm operators in the Texas Gulf Coast.
A MICROCOMPUTER LINEAR PROGRAMMING PACKAGE: AN ALTERNATIVE TO MAINFRAMES
Creators: name: Laughlin, David H.
name: Laughlin, David H.
Publisher: name: Unknown
Year: 1984
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This paper presents the capabilities and limitations of a microcomputer linear programming package. The solution algorithm is a version of the revised simplex. Rapid problem entry, user ease of operation, sensitivity analyses on objective function and right hand sides are advantages. A problem size of 150 activities and 64 constraints can be solved in present form. Due to problem size, limitations and lack of parametric and integer programming routines, this package is thought to have the most value in teaching applications and research problems in the smaller size categories.
بررسی تاثیر تمایزات فردی و روانی زنان بر مدیریت بدن
Creators: name: Tavassoli, Afsaneh
name: Alamati, GholamReza
name: Habibi, Elham
name: Ahmadi, Amir Masoud
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: نیاز به آگاهی داشتن از اندام خود و نظارت و کنترل بر بدن، یکی از ضروریات عصر حاضر بهشمار می رود که درمباحث جامعه شناسیِ بدن به عنوان مدیریت بدن مطرح می گردد. کنترل، نظارت و مدیریت بر بدن، گاهی در قالب فعالیتهاي ورزشی و گاهی در قالب جراحی هاي زیبایی، انجام می شود. توجه بیشتر زنان به وضعیت ظاهر و زیبایی خود نسبت به مردان، سبب می شود تا گاهی به صورت افراطی، رفتارهایی به منظور مطابقت دادن ویژگی هاي بدن خود با الگوهاي فرهنگی زیبایی و چهره و اندام که در رسانه هاي جمعی و صنعت زیبایی تبلیغ می شود، اتخاذ کنند. این امرتبعات سوئی به دنبال دارد. پرسش اصلی تحقیق حاضر این است که آیا تمایزات فردي و روانی بر مدیریت بدن، مؤثراست؟ اگر پاسخ مثبت است میزان تأثیر آن چقدر است؟ در مقاله پیشرو جهت تدوین الگوي نظري، ازنظریه گئورگ زیمل استفاده شده است. جامعه آماري تحقیق شامل کلیه زنان مراجعه کننده به مجموعه هاي ورزشی وکلینیکهاي جراحی زیبایی منطقه 1 شهر تهران و در سال 1392 میباشند. همچنین روش تحقیق، پیمایش بوده و ازابزار پرسشنامه جهت جمع آوري داده ها استفاده شده است. همچنین براي نمایش یافته ها نیز از دو نوع آمار توصیفی واستنباطی شامل جداول توافقی، آزمونهاي پارامتري (اسپیرمن و پیرسون، رگرسیون و تحلیل مسیر) و براي مقایسه بین استفاده شده است. نتایج تحقیق حاکی است که تمایزات فردي و روانی بر مدیریت بدن، مؤثر F گروه ها از آزمون است. همچنین مدیریت بدن در گروههاي سنّی، تحصیلی و وضعیت هاي تأهل، تفاوت معناداري دارد. درحالیکه مدیریت بدن در گروه هاي شغلی مختلف تفاوت معناداري ندارد و بین مدیریت بدن با میزان درآمد رابطه معناداري وجود ندارد.
[Letter from Anna Antoinette Weber van Bosse]
Creators: name: Weber Van Bosse, Anna Antoinette
Publisher: name: Unknown
Year: 1903

description: Has received the plates in good condition with the list of species which the Siboga material contains. Will soon be sending a proof of the first plate. Adds that the plates are very beautiful and instructive. Thinks that both names should only be put behind Archaeolithothamnion sibogae, Lithothamnion pulchrum and Goniolithon reinboldii, the rest must have just Foslie's name. Information about how she intends to write the Introduction.
ABID: Angle Based Intrinsic Dimensionality
Creators: name: Thordsen, Erik
name: Schubert, Erich
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The intrinsic dimensionality refers to the ``true'' dimensionality of the data, as opposed to the dimensionality of the data representation. For example, when attributes are highly correlated, the intrinsic dimensionality can be much lower than the number of variables. Local intrinsic dimensionality refers to the observation that this property can vary for different parts of the data set; and intrinsic dimensionality can serve as a proxy for the local difficulty of the data set. Most popular methods for estimating the local intrinsic dimensionality are based on distances, and the rate at which the distances to the nearest neighbors increase, a concept known as ``expansion dimension''. In this paper we introduce an orthogonal concept, which does not use any distances: we use the distribution of angles between neighbor points. We derive the theoretical distribution of angles and use this to construct an estimator for intrinsic dimensionality. Experimentally, we verify that this measure behaves similarly, but complementarily, to existing measures of intrinsic dimensionality. By introducing a new idea of intrinsic dimensionality to the research community, we hope to contribute to a better understanding of intrinsic dimensionality and to spur new research in this direction.
On compact hyperbolic Coxeter d-polytopes with d+4 facets
Creators: name: Felikson, Anna
name: Tumarkin, Pavel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Metric Geometry (math.MG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55, 51F15

description: We show that there is no compact hyperbolic Coxeter d-polytope with d+4 facets for d>7. This bound is sharp: examples of such polytopes up to dimension 7 were found by Bugaenko (1984). We also show that in dimension d=7 the polytope with 11 facets is unique.
description: v2: the paper is rewritten. A new section added in which 7-dimensional polytopes are classified. 43 pages, a lot of figures
Quantification and computational modelling of radiation doses while handling Neutron Activation Analysis samples
Creators: name: Parga, Jose Rafael
name: 0000-0001-6210-9384
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: MCNP
NAA

description: The vast majority of radiation protection guidelines in nuclear facilities usually relate to a few radiation sources in very controlled environments. There are 111 research reactors where neutron activation analysis (NAA) is a significant research and teaching component. Although many reports and research articles detail the safety procedures at power reactors and government-run research facilities, few reports have been published specifically for NAA laboratories. This leads to little or no formal protocols to minimize exposure. In particular, NAA can yield various exposures due to different types of samples and neutron fluxes. Unlike any other type of radiation laboratory, an NAA lab can contain a large variety of radioactive isotopes resulting from activation products with varying degrees of half-lives and different strengths of gamma-rays and beta particles. Typically, it is challenging to predict exposure rates for each irradiation run. Dose rates were computed using MCNP 6.2, a Monte Carlo code developed by Los Alamos National Laboratory (LANL) for radiation transport. The MCNP 6.2 model is used to computationally irradiate sample materials in several positions in the TRIGA reactor core using various NIST standard reference materials and typical NAA samples. In a second MCNP 6.2 model, two different computational phantoms are modeled: 1) whole-body phantom and 2) hand phantom. These phantoms helped develop approximate absorbed doses that a researcher could encounter while handling NAA samples.
[Letter from Anna Antoinette Weber van Bosse]
Creators: name: Weber Van Bosse, Anna Antoinette
Publisher: name: Unknown
Year: 1904
Subjects: De Toni, Giovanni Batista
Kjellman, Frans Reinhold
Agassiz

description: Is grateful for all the pains and trouble with the Siboga collection of Lithothamnia. The paper will now be published. How much did the slides made in Uppsala cost? Asks whether he is interested in having the photographs and proofs of the plates which were not chosen for the paper. Is he interested in algae received from Professor Agassiz? She also wants to send the paper to De Toni and Kjellman.
BETULA: Numerically Stable CF-Trees for BIRCH Clustering
Creators: name: Lang, Andreas
name: Schubert, Erich
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: BIRCH clustering is a widely known approach for clustering, that has influenced much subsequent research and commercial products. The key contribution of BIRCH is the Clustering Feature tree (CF-Tree), which is a compressed representation of the input data. As new data arrives, the tree is eventually rebuilt to increase the compression. Afterward, the leaves of the tree are used for clustering. Because of the data compression, this method is very scalable. The idea has been adopted for example for k-means, data stream, and density-based clustering. Clustering features used by BIRCH are simple summary statistics that can easily be updated with new data: the number of points, the linear sums, and the sum of squared values. Unfortunately, how the sum of squares is then used in BIRCH is prone to catastrophic cancellation. We introduce a replacement cluster feature that does not have this numeric problem, that is not much more expensive to maintain, and which makes many computations simpler and hence more efficient. These cluster features can also easily be used in other work derived from BIRCH, such as algorithms for streaming data. In the experiments, we demonstrate the numerical problem and compare the performance of the original algorithm compared to the improved cluster features.
Economic Causes of Tropical Deforestation - A Global Empirical Application
Creators: name: Scrieciu, Silviu Serban
name: Scrieciu, Silviu Serban
Publisher: name: Unknown
Year: 2003
Subjects: subject: Environmental Economics and Policy
subject: global tropical deforestation
subject: farm household models

description: The paper investigates the complex system of causes affecting tropical deforestation at a worldwide level. There is no generally accepted theory in the deforestation literature to indicate which variables should be included in a model of deforestation at an aggregate global level. The paper begins, therefore, by presenting an analytical structure based on formal farm household economic modelling literature. The empirical findings derived from a global regression model tend to confirm the profit maximising market approach to deforestation, i.e. policy and structural variables at the macro-level that stimulate agricultural production provide farmers with incentives to deforest and expand their arable land areas. However, subsequent statistical tests suggest that the causes of tropical deforestation are difficult to identify and quantify at a global level, and that these should be analysed at a more disaggregated level.