cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Of kings and clowns : representations of leadership in contemporary Egyptian theatre, 1967-2018
Creators: name: Manucharyan, Tiran
Publisher: name: University of St Andrews
Year: 2019

description:
This research explores the development of the discourse of power and the role in the development of this discourse of the arts and artists as dramatised in contemporary Egyptian theatre from 1967 to 2018. While Egyptian theatre of the pre-1967 and post-2011 periods has received comparably more scholarly attention in Western academia, the post-1967 period has generally been neglected. This period has been described as one of decline and as such of no scholarly interest. Through detailed analyses of Egyptian plays of the period in question, predominantly those by Abū al-ʿIlā al-Salāmūnī and Lenin al-Ramlī, this study fills an important gap in existing scholarship by linking the pre-1967 and post-2011 developments in Egyptian theatre. As such, it aims to achieve a better understanding of the revolutionary and post-revolutionary developments in Egyptian theatre in the context of the socio-political and cultural life of the country. The prologue introduces the topic and the concerns of the research. The six content chapters are grouped into two chronological periods. Chapters one to four focus on the plays of the last three decades of the twentieth century, and chapters five and six examine twenty-first-century plays. Chapter one examines the representations in the plays of characters who practise leadership. Chapter two discusses the self-reflexive technique of representing intellectual leadership in the form of theatre within theatre. Chapter three discusses the representations of common members of society and society as a whole. Chapter four is devoted to analyses of female characters in Egyptian plays. Chapter five looks at al-Salāmūnī’s and al-Ramlī’s work in the early twenty-first century, examining their returns to the issues discussed in the previous chapters. Chapter six identifies how the 2011 revolution and the events following it have been reflected in theatre. The epilogue summarises the conclusions of the research.
An evaluation of HealthFacts health information service at the Queen's Medical Centre, Nottingham
Creators: name: Patterson, Lorna C.
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: An evaluation of HealthFacts health information service at the Queen's Medical Centre, Nottingham
OPTIMAL COMMODITY PROMOTION IN IMPERFECTLY COMPETITIVE MARKETS
Creators: name: Zhang, Mingxia
name: Sexton, Richard J.
name: Zhang, Mingxia
name: Sexton, Richard J.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Marketing
subject: FOS: Economics and business

description: We investigate the optimal collection and expenditure of funds for agricultural commodity promotion in markets where the processing and distribution sectors may exhibit oligopoly and/or oligopsony power. The conditions that characterize optimal advertising intensity under perfect competition for funds generated from either per-unit or lump-sum taxes do not, in general, hold when marketing is imperfectly competitive. Simulation analyses show that imperfect competition always reduces farmers' optimal advertising expenditure and that an imperfectly competitive marketing sector may capture half or more of the benefits from the funds that are expended.
Fermion mass relations in a supersymmetric SO(10) theory
Creators: name: Bajc, Borut
name: Melfo, Alejandra
name: Senjanovic, Goran
name: Vissani, Francesco
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrino and charged fermion masses provide important constraints on grand unified theories. We illustrate this by focusing on a renormalizable, supersymmetric SO(10) theory proposed long ago, that recently attracted great interest in view of its minimality. We show how the nature of the light Higgs, which depends on the GUT scale fields, gets reflected on the precise predictions for fermion masses and mixings. We exemplify this on the case of dominant Type II see-saw, which gets severely constrained and is likely to fail.
description: Based on talks given by G. Senjanovic in the plenary session of PASCOS05 Conference and by A. Melfo at the 2005 Gran Sasso Summer Institute
EXCHANGE RATE MISALIGNMENT AND AGRICULTURAL TRADE
Creators: name: Cho, Guedae
name: Sheldon, Ian M.
name: McCorriston, Steve
name: Cho, Guedae
name: Sheldon, Ian M.
name: McCorriston, Steve
Publisher: name: Unknown
Year: 2000
Subjects: subject: International Relations/Trade
subject: Exchange rates
subject: misalignment
subject: agricultural trade

description: Using a sample consisting of bilateral trade flows across 10 developed countries between 1974 and 1995, this paper explores the effect of exchange rate misalignment on the growth of agricultural trade as compared to other sectors. Controlling for other factors likely to determine the growth in bilateral agricultural trade, the results show that long-run real exchange rate variability has had a significant negative effect on the growth of agricultural trade over this period. Keywords: Exchange rates, misalignment, agricultural trade
Towards Goal-Oriented Agents for Evolving Problems Observed via Conversation
Creators: name: Free, Michael
name: Langworthy, Andrew
name: Dimitropoulaki, Mary
name: Thompson, Simon
Publisher: name: arXiv
Year: 2024
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The objective of this work is to train a chatbot capable of solving evolving problems through conversing with a user about a problem the chatbot cannot directly observe. The system consists of a virtual problem (in this case a simple game), a simulated user capable of answering natural language questions that can observe and perform actions on the problem, and a Deep Q-Network (DQN)-based chatbot architecture. The chatbot is trained with the goal of solving the problem through dialogue with the simulated user using reinforcement learning. The contributions of this paper are as follows: a proposed architecture to apply a conversational DQN-based agent to evolving problems, an exploration of training methods such as curriculum learning on model performance and the effect of modified reward functions in the case of increasing environment complexity.
description: 15 pages, 7 figures
Measurement of the Forward-Backward Charge Asymmetry from W --> e nu Production in p anti-p Collisions at s**(1/2) = 1.96 TeV
Creators: name: Acosta, D.
name: Collaboration, The CDF
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a measurement of the forward-backward charge asymmetry of electrons from W boson decays in p anti-p collisions at s**(1/2) = 1.96 TeV using a data sample of 170 pb-1 collected by the Collider Detector at Fermilab. The asymmetry is measured as a function of electron rapidity and transverse energy and provides new input on the momentum fraction dependence of the u and d quark parton distribution within the proton.
description: The Acknowledgements changed. 18 pages, 5 figures, 1 table; Previous comments: This is the version of the paper, which is accepted by Phys. Rev. D Rapid Communications for publication. Only minor changes to the text. 18 pages, 5 figures, 1 table; Previous comments: 18 pages, 5 figures, 1 table, To be submitted to Phys. Rev. D Rapid Communications
RELATIVE AND ABSOLUTE RISK FORMAT IN ELICITING WILLINGNESS-TO-PAY FOR BEEF IRRADIATION
Creators: name: Rimal, Arbindra
name: Fletcher, Stanley M.
name: McWatters, Kay H.
name: Rimal, Arbindra
name: Fletcher, Stanley M.
name: McWatters, Kay H.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Consumer/Household Economics
subject: beef irradiation
subject: relative risk format
subject: absolute risk format
subject: willingness-to-pay
subject: double-bounded CV questions

description: The relationship between the valuation of reduced risk through irradiation and framing of risk information was determined using absolute and relative risk formats. A double-bounded CV survey was used to measure willingness-to-pay (WTP) for irradiated beef among 740 U.S. households. Results show that the WTP was sensitive to the risk formats.
5d Black Hole as Emergent Geometry of Weakly Interacting 4d Hot Yang-Mills Gas
Creators: name: Rey, Soo-Jong
name: Hikida, Yasuaki
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate five-dimensional anti-de Sitter black hole emerges as dual geometry holographic to weakly interacting N=4 superconformal Yang-Mills theory. We first note that an ideal probe of the dual geometry is the Yang-Mills instanton, probing point by point in spacetime. We then study instanton moduli space at finite temperature by adopting Hitchin's proposal that geometry of the moduli space is definable by Fisher-Rao "information geometry". In Yang-Mills theory, the information metric is measured by a novel class of gauge-invariant, nonlocal operators in the instanton sector. We show that the moduli space metric exhibits (1) asymptotically anti-de Sitter, (2) horizon at radial distance set by the Yang-Mills temperature, and (3) after Wick rotation of the moduli space to the Lorentzian signature, a singularity at the origin. We argue that the dual geometry emerges even for rank of gauge groups of order unity and for weak `t Hooft coupling.
description: Latex, 3 .eps figures; v2. typos corrected + minor changes
Teasing : a child's perspective
Creators: name: Lemon, Kelly-Anne
Publisher: name: University of British Columbia
Year: 2009

description: This study was designed to address the factors which influence children's perceptions of ambiguous teasing comments. Specifically, the influences of one's relationship with the teaser (friend versus nonfriend) and one's evaluations of teasing topic (positive versus negative self-evaluation) were hypothesized to affect perceptions. Sixty-nine children ages 8 through 13 were asked to respond to hypothetical teasing scenarios in which an ambiguous teasing comment was made by friends (or nonfriends) about some aspect of appearance on a topic of great (or little) importance to the teasee. Responses to scenarios included perceptions of intent and suggested behavioural responses to teasing. Emotional responses to teasing were also considered. Results demonstrated that teasing from friends was perceived as more benign than from nonfriends. Also, teasing from friends was responded to more negatively than teasing from nonfriends. Valence of self-evaluation did not significantly affect perceptions of intent; however, scenarios including positive self-evaluations tended to be responded to in a more positive way. In addition, participants had mainly negative emotional responses to being teased. Interpretations of these findings and directions for future research are also discussed.
DEMAND FOR HIGH FIBER AND LOW FIBER CEREALS
Creators: name: Binkley, James K.
name: Eales, James S.
name: Binkley, James K.
name: Eales, James S.
Publisher: name: Unknown
Year: 2000
Subjects: Demand and Price Analysis

description: Nutritional considerations are of increasing importance in some foods. To address demand for nutrition, we estimate a demand system for cereals of different nutrient types, concentrating on fiber and focussing on five Kellogg's cereals with marked differences in fiber content. Results shed light on the role of price in who demands "healthy" foods.
MOJAVE: Monitoring of Jets in AGN with VLBA Experiments - II. First-Epoch 15 GHz Circular Polarization Results
Creators: name: Homan, D. C.
name: Lister, M. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report first-epoch circular polarization results for 133 active galactic nuclei in the MOJAVE program to monitor the structure and polarization of a flux limited sample of extra-galactic radio jets with the VLBA at 15 GHz. We found strong circular polarization ($\geq 0.3$%) in approximately 15% of our sample. The circular polarization was usually associated with jet cores; however, we did find a few strong jet components to be circularly polarized. The levels of circular polarization were typically in the range of $0.3-0.5$% of the local Stokes-$I$. We found no strong correlations between fractional circular polarization of jet cores and source type, redshift, EGRET detections, linear polarization, or other observed parsec-scale jet properties. There were differences between the circular-to-linear polarization ratios of two nearby galaxies versus more distant quasars and BL Lac objects. We suggest this is because the more distant sources either have (1) less depolarization of their linear polarization, and/or (2) poorer effective linear resolution and therefore their VLBA cores apparently contain a larger amount of linearly polarized jet emission. The jet of 3C 84 shows a complex circular polarization structure, similar to observations by Homan & Wardle five years earlier; however, much of the circular polarization seems to have moved, consistent with a proper motion of 0.06$c$. The jet of 3C 273 also has several circularly polarized components, and we find their fractional circular polarization decreases with distance from the core.
description: 24 pages, accepted to appear in Astronomical Journal
D4.1 Data Cube Metadata Model
Creators: name: Corcho, Oscar
name: González, Esteban
name: Garijo, Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: RELIANCE
Research Objects
ROhub
RO-Crate
Data cubes
EOSC
OGC

description: RELIANCE, short for Research Lifecycle Management for Earth Science Communities and Copernicus users in EOSC, aims to realize the vision of FAIR research in EOSC by adopting a holistic research management approach based on three key and complementary technologies: i) Research objects (RO) as the overarching mechanism to manage scientific research activities; ii) data cubes as the mechanisms enabling an efficient and scalable Earth Observation data discovery and access; iii) text mining and semantic enrichment services allowing to extract machine-readable metadata from RO resources, enabling researchers to discover scientific information at scale and to structure their own research. This document describes the machine-readable metadata model that we propose for the description of FAIR Data Cubes, as an essential component in the data-cube-centric Research Objects that will be managed in the services offered by RELIANCE, so as to provide support to our communities of researchers. For the development of this metadata model we have first analysed the dataset search services that our communities of researchers use more often, so as to determine which are the main attributes by which datasets can be found and retrieved. We have also analysed existing metadata models that are being used to described those datasets, as well as those that are being prominently proposed in the context of the EOSC ecosystem, such as those identified for the representation of FAIR Digital Objects in the context of the EOSC Interoperability Framework. As a result, we have created a set of crosswalks among them, made available as an Excel file with a permanent DOI (Corcho, Gonz.lez-Guardia and Garijo, 2021), which may be refined in the future as a result of the Research Object management activities that will be developed in the project. We have also collected a set of competency questions (also known as user stories or usage scenarios) for which our Data Cube metadata model should provide support. Our metadata model will be implemented as an OWL ontology in the following months, as part of the API development, together with its corresponding documentation and examples, and will be published as a FAIR artefact, following Linked Data publishing principles for vocabularies.
description: This is the draft version of the deliverable not yet approved by the European Commission.
Dynamics of Asymptotic Diffeomorphisms in (2+1)-Dimensional Gravity
Creators: name: Carlip, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In asymptotically anti-de Sitter gravity, diffeomorphisms that change the conformal boundary data can be promoted to genuine physical degrees of freedom. I show that in 2+1 dimensions, the dynamics of these degrees of freedom is described by a Liouville action, with the correct central charge to reproduce the entropy of the BTZ black hole.
description: 8 pages, LaTeX; v2: slightly expanded discussion of implications, more references; v3: more explicit comparison to Chern-Simons approach and discussion of role of constraints; v4: added discussion of relationships to and differences with earlier work, new and corrected references
PROMOTION OF PRIMARY PRODUCTS - A VIEW FROM THE CLOISTER
Creators: name: Quilkey, John J.
name: Quilkey, John J.
Publisher: name: Unknown
Year: 1986
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This paper is a discourse on how promotion may contribute to the efficiency of consumption. The view is taken that, through its addition to the quantity of search with respect to product characteristics, promotion may enable consumers to allocate their expenditures more efficiently and yield additional revenue to producers of the promoted product. The central plea is for consistency in the identification of promotion objectives, the implementation of the promotion program and monitoring of the outcome. In an idiosyncratic way, the promotion objectives are framed as being related to price and income elasticities and it is argued that promotional outcomes should be monitored in terms of these elasticities. Supply shifts may complement promotion strategies to the advantage or disadvantage of producers and the outcomes in terms of producer surplus are examined for particular promotion strategies and shifts in linear supply functions.
Multivariate Extreme Value Theory Based Channel Modeling for Ultra-Reliable Communications
Creators: name: Mehrnia, Niloofar
name: Coleri, Sinem
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Attaining ultra-reliable communication (URC) in fifth-generation (5G) and beyond networks requires deriving statistics of channel in ultra-reliable region by modeling the extreme events. Extreme value theory (EVT) has been previously adopted in channel modeling to characterize the lower tail of received powers in URC systems. In this paper, we propose a multivariate EVT (MEVT)-based channel modeling methodology for tail of the joint distribution of multi-channel by characterizing the multivariate extremes of multiple-input multiple-output (MIMO) system. The proposed approach derives lower tail statistics of received power of each channel by using the generalized Pareto distribution (GPD). Then, tail of the joint distribution is modeled as a function of estimated GPD parameters based on two approaches: logistic distribution, which utilizes logistic distribution to determine dependency factors among the Frechet transformed tail sequence and obtain a bi-variate extreme value model, and Poisson point process, which estimates probability measure function of the Pickands angular component to model bi-variate extreme values. Finally, validity of the proposed models is assessed by incorporating the mean constraint on probability measure function of Pichanks coordinates. Based on the data collected within the engine compartment of Fiat Linea, we demonstrate the superiority of proposed methodology compared to the conventional extrapolation-based methods in providing the best fit to the multivariate extremes.
description: 13 pages, 6 figures
Half Life of the Doubly-magic r-Process Nucleus 78Ni
Creators: name: Hosmer, P. T.
name: Schatz, H.
name: Aprahamian, A.
name: Arndt, O.
name: Clement, R. R. C.
name: Estrade, A.
name: Kratz, K. -L.
name: Liddick, S. N.
name: Mantica, P. F.
name: Mueller, W. F.
name: Montes, F.
name: Morton, A. C.
name: Ouellette, M.
name: Pellegrini, E.
name: Pfeiffer, B.
name: Reeder, P.
name: Santi, P.
name: Steiner, M.
name: Stolz, A.
name: Tomlin, B. E.
name: Walters, W. B.
name: Woehr, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Nuclei with magic numbers serve as important benchmarks in nuclear theory. In addition, neutron-rich nuclei play an important role in the astrophysical rapid neutron-capture process (r-process). 78Ni is the only doubly-magic nucleus that is also an important waiting point in the r-process, and serves as a major bottleneck in the synthesis of heavier elements. The half-life of 78Ni has been experimentally deduced for the first time at the Coupled Cyclotron Facility of the National Superconducting Cyclotron Laboratory at Michigan State University, and was found to be 110 (+100 -60) ms. In the same experiment, a first half-life was deduced for 77Ni of 128 (+27 -33) ms, and more precise half-lives were deduced for 75Ni and 76Ni of 344 (+20 -24) ms and 238 (+15 -18) ms respectively.
description: 4 pages, 3 figures
Two cosmological models, the age of the Universe, and dark energy
Creators: name: Chaliasos, Evangelos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The prevailing cosmological model with the lambda-term, in which the space is flat, is studied (section 1). The corresponding age of the Universe (t0) is calculated (assuming a Hubble constant consistent with the measurements of the Hubble telescope), as well as the deceleration parameter (q0). The latter is found negative, showing an accelerating Universe, but the former is insufficient to account for the actually estimated value. Nevertheless, with more recent values of the parameters involved, this model actually gives a result consistent with the estimated value. But there is a severe defect in the prevailing model, concerning the so-called dark energy, necessary to be introduced. Then, another model without the lambda-term, and based on the time-symmetric theory of the author, is studied (section 3), after an introduction to this theory (section 2). In this model the space is open, but the overall space-time is flat. It is not accelerating (it retains a constant rate of expansion). In this model, with q0 = 0, an age of the Universe results, which is consistent again, within the limits of accuracy, with the estimated value. But the great advantage of this model is that it does not require at all the existence of the ambiguous dark energy.
description: Written in final form during Spring, 2005. Based on a talk given during the 6th Hellenic Asronomical Conference, held at Penteli Observatory, Athens, Greece, 15-17 September, 2003
First Results from the CHARA Array. II. A Description of the Instrument
Creators: name: Brummelaar, T. A. ten
name: McAlister, H. A.
name: Ridgway, S. T.
name: Bagnuolo, W. G.
name: Turner, N. H.
name: Sturmann, L.
name: Sturmann, J.
name: Berger, D. H.
name: Ogden, C. E.
name: Cadman, R.
name: Hopper, C. H.
name: Shure, M. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The CHARA Array is a six 1-m telescope optical/IR interferometric array located on Mount Wilson California, designed and built by the Center for High Angular Resolution Astronomy of Georgia State University. In this paper we describe the main elements of the Array hardware and software control systems as well as the data reduction methods currently being used. Our plans for upgrades in the near future are also described.
SOURCES AND USES OF FUNDS IN THE NEW ZEALAND FARM SECTOR
Creators: name: Stanbridge, R.J.
name: Stanbridge, R.J.
Publisher: name: Unknown
Year: 1973
Subjects: Agricultural Finance

description: The changing pattern of funds sources and uses in the New Zealand farm sector, is summarized, using a flow of funds model. Technical problems of data and definition are discussed. The close relationship between cash farm income and investment is observed, and some indication is given of the extent of aggregate cash withdrawals (drawings) from the sector. The increasing reliance of agriculture on external sources of finance is also apparent.
RESOURCE PRODUCTIVITY, RETURNS TO SCALE AND FARM SIZE IN INDIAN AGRICULTURE: SOME RECENT EVIDENCE
Creators: name: Srivastava, Uma K.
name: Nagadevara, Vishnuprasad
name: Heady, Earl O.
name: Srivastava, Uma K.
name: Nagadevara, Vishnuprasad
name: Heady, Earl O.
Publisher: name: Unknown
Year: 1973
Subjects: Productivity Analysis

description: A perceptible technological transformation has been under way in India during the last few years. The output of total foodgrains increased sharply between 1967-68 and 1970-71 over previous years. There is enough evidence to show that the technological change has resulted in an upward shift in production functions for major crops, especially for wheat.
Percolation with Multiple Giant Clusters
Creators: name: Ben-Naim, E.
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the evolution of percolation with freezing. Specifically, we consider cluster formation via two competing processes: irreversible aggregation and freezing. We find that when the freezing rate exceeds a certain threshold, the percolation transition is suppressed. Below this threshold, the system undergoes a series of percolation transitions with multiple giant clusters ("gels") formed. Giant clusters are not self-averaging as their total number and their sizes fluctuate from realization to realization. The size distribution F_k, of frozen clusters of size k, has a universal tail, F_k ~ k^{-3}. We propose freezing as a practical mechanism for controlling the gel size.
description: 4 pages, 3 figures
The Detectability of Pair-Production Supernovae at z < 6
Creators: name: Scannapieco, Evan
name: Madau, Piero
name: Woosley, Stan
name: Heger, Alexander
name: Ferrara, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Nonrotating, zero metallicity stars with initial masses 140 < M < 260 solar masses are expected to end their lives as pair-production supernovae (PPSNe), in which an electron-positron pair-production instability triggers explosive nuclear burning. Interest in such stars has been rekindled by recent theoretical studies that suggest primordial molecular clouds preferentially form stars with these masses. Since metal enrichment is a local process, the resulting PPSNe could occur over a broad range of redshifts, in pockets of metal-free gas. Using the implicit hydrodynamics code KEPLER, we have calculated a set of PPSN light curves that addresses the theoretical uncertainties and allows us to assess observational strategies for finding these objects at intermediate redshifts. The peak luminosities of typical PPSNe are only slightly greater than those of Type Ia, but they remain bright much longer (~ 1 year) and have hydrogen lines. Ongoing supernova searches may soon be able to limit the contribution of these very massive stars to < 1% of the total star formation rate density out to z=2 which already provides useful constraints for theoretical models. The planned Joint Dark Energy Mission satellite will be able to extend these limits out to z=6.
description: 12 pages, 6 figures, ApJ in press; slightly revised version, a few typos corrected
New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay
Creators: name: Aliev, M. A.
name: Asano, Y.
name: Depommier, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a new result on the K^+ --> pi^+ pi^0 gamma decay measurement using stopped kaons. The best fit to the decay spectrum comprised of 10k events gives a branching ratio for the direct photon emission of [3.8+-0.8(stat)+-0.7(syst)] times 10^{-6} in the pi^+ kinetic energy region of 55 to 90 MeV. This result has been obtained with the assumption that there is no component due to interference with the inner bremsstrahlung.
description: 14 pages, 7 figures, 3 tables (Fig.1 which had problems with uploading first time is replaced. Besides introduction is changed to bring into accordance with the version published in Eur.Phys.J.C.)
J-resolved He I emission predictions in the low-density limit
Creators: name: Bauman, R. P.
name: Porter, R. L.
name: Ferland, G. J.
name: MacAdam, K. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Determinations of the primordial helium abundance are used in precision cosmological tests. These require highly accurate He I recombination rate coefficients. Here we reconsider the formation of He I recombination lines in the low-density limit. This is the simplest case and it forms the basis for the more complex situation where collisions are important. The formation of a recombination line is a two-step process, beginning with the capture of a continuum electron into a bound state and followed by radiative cascade to ground. The rate coefficient for capture from the continuum is obtained from photoionization cross sections and detailed balancing, while radiative transition probabilities determine the cascades. We have made every effort to use today's best atomic data. Radiative decay rates are from Drake's variational calculations, which include QED, fine structure, and singlet-triplet mixing. Certain high-$L$ fine-structure levels do not have a singlet-triplet distinction and the singlets and triplets are free to mix in dipole-allowed radiative decays. We use quantum defect or hydrogenic approximations to include levels higher than those treated in the variational calculations. [Abstract clipped]
description: 31 pages, 2 figures, accepted by ApJ, tentatively scheduled for 20 July 2005, v628 1
Adult children of covertly narcissistic families : a look at their romantic relationships
Creators: name: Monk, Iona Rachelle
Publisher: name: University of British Columbia
Year: 2009

description: The narcissistic family is a term coined to describe a pattern of interaction existing within a family in which the needs of the parents take precedence over the needs of the children. The term narcissist is used not as a clinical diagnosis of the parents, but rather in a descriptive sense. Familiarity with the clinical use of the term was deemed necessary for understanding the descriptive meaning. Two types of narcissistic faniilies exist; overt and covert. Overtly narcissistic families include those in which the parents' needs take precedence due to overt reasons, such as drag and alcohol abuse or psychiatric illness. Much empirical literature exists on this subject. Covertly narcissistic families include those in which the parents' needs take precedence due to covert reasons, such as parental low self-esteem or lack of identity. The existing research on the covertly narcissistic family is purely anecdotal, none of it focusing on the romantic experiences of survivors. Therefore it was the aim of this study to explore the romantic experiences of adult children of covertly narcissistic families, with the hopes of finding common themes among participants and uncovering their feelings and experiences on a deeper and richer level. A research interview was conducted using open-ended questions to determine the experiences of romantic relationships for six participants. A qualitative content analysis was used to identify categories and themes within the interview transcripts. The study yielded five common themes; insecurity in relationships; difficulty with intimacy; unrealistic expectations; negative/precarious sense of self; and repeating unhealthy family of origin dynamics. Each theme was further broken down into three categories. Consistent with anecdotal and research findings on the narcissistic family, on romantic love, and on the effects of childhood covert abuse, results indicated that adults who emerged from these families indeed struggled with basic trust and intimacy issues which affected their ability to have and maintain fulfilling romantic relationships. The results also uncovered the depth and richness that exist within the experience of these individuals. Suggestions for counselling were based on a need for the field to familiarize itself with the particular struggles of this understudied group.
Machine learning techniques applied for detection of nanoparticles on surfaces using Coherent Fourier Scatterometry
Creators: name: Kolenov, D.
name: Pereira, S. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present an efficient machine learning framework for detection and classification of nanoparticles on surfaces that are detected in the far-field with Coherent Fourier Scatterometry (CFS). We study silicon wafers contaminated with spherical polystyrene (PSL) nanoparticles (with diameters down to $λ/8$). Starting from the raw data, the proposed framework does the pre-processing and particle search. Further, the unsupervised clustering algorithms, such as K-means and DBSCAN, are customized to be used to define the groups of signals that are attributed to a single scatterer. Finally, the particle count versus particle size histogram is generated. The challenging cases of the high density of scatterers, noise and drift in the dataset are treated. We take advantage of the prior information on the size of the scatterers to minimize the false-detections and as a consequence, provide higher discrimination ability and more accurate particle counting. Numerical and real experiments are conducted to demonstrate the performance of the proposed search and cluster-assessment techniques. Our results illustrate that the proposed algorithm can detect surface contaminants correctly and effectively.
description: Manuscript in preparation
Split Supersymmetry from Anomalous U(1)
Creators: name: Babu, K. S.
name: Enkhbat, Ts.
name: Mukhopadhyaya, Biswarup
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a scenario wherein the anomalous U(1) D-term of string origin triggers supersymmetry breaking and generates naturally a Split Supersymmetry spectrum. When the gaugino and the Higgsino masses (which are of the same order of magnitude) are set at the TeV scale, we find the scalar masses to be in the range (10^6 - 10^8) GeV. The U(1) D-term provides a small expansion parameter which we use to explain the mass and mixing hierarchies of quarks and leptons. Explicit models utilizing exact results of N = 1 suersymmetric gauge theories consistent with anomaly constraints, fermion mass hierarchy, and supersymmetry breaking are presented.
description: 20 pages in LaTeX, version published in NPHB
The Heyneman-Radford Theorem for Monoidal Categories
Creators: name: Ardizzoni, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 18D10; 18A30

description: We prove Heyneman-Radford Theorem in the framework of Monoidal Categories.
Spin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling
Creators: name: Reynoso, A.
name: Usaj, Gonzalo
name: Balseiro, C. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the sample. In wide samples, the spin polarization has it largest value at low energies (close to the bottom of the band) and goes to zero at higher energies. In this case, the spin polarization is dominated by the presence of evanescent modes which have an explicit spin component outside the plane. In quantum wires, on the other hand, the spin polarization is dominated by interference effects induced by multiple scattering at the edges. Here, the spin polarization is quite sensitive to the value of the Fermi energy, especially close to the point where a new channel opens up. We analyzed different geometries and found that the spin polarization can be strongly enhanced.
description: 10 pages, 13 figures, high quality figures available upon request
A stochastic kinetic scheme for multi-scale plasma transport with uncertainty quantification
Creators: name: Xiao, Tianbai
name: Frank, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper, a physics-oriented stochastic kinetic scheme will be developed that includes random inputs from both flow and electromagnetic fields via a hybridization of stochastic Galerkin and collocation methods. Based on the BGK-type relaxation model of the multi-component Boltzmann equation, a scale-dependent kinetic central-upwind flux function is designed in both physical and particle velocity space, and the governing equations in the discrete temporal-spatial-random domain are constructed. By solving Maxwell's equations with the wave-propagation method, the evolutions of ions, electrons and electromagnetic field are coupled throughout the simulation. We prove that the scheme is formally asymptotic-preserving in the Vlasov, magnetohydrodynamical, and neutral Euler regimes with the inclusion of random variables. Therefore, it can be used for the study of multi-scale and multi-physics plasma system under the effects of uncertainties, and provide scale-adaptive physical solutions under different ratios among numerical cell size, particle mean free path and gyroradius (or time step, local particle collision time and plasma period). Numerical experiments including one-dimensional Landau Damping, the two-stream instability and the Brio-Wu shock tube problem with one- to three-dimensional velocity settings, and each under stochastic initial conditions with one-dimensional uncertainty, will be presented to validate the scheme.
description: 37 pages, 15 figures. arXiv admin note: text overlap with arXiv:2002.00277
Hierarchy of magnon entanglement in antiferromagnets
Creators: name: Mousolou, Vahid Azimi
name: Bagrov, Andrey
name: Bergman, Anders
name: Delin, Anna
name: Eriksson, Olle
name: Liu, Yuefei
name: Pereiro, Manuel
name: Thonig, Danny
name: Sjöqvist, Erik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Continuous variable entanglement between magnon modes in Heisenberg antiferromagnet with Dzyaloshinskii-Moryia (DM) interaction is examined. Different bosonic modes are identified, which allows to establish a hierarchy of magnon entanglement in the ground state. We argue that entanglement between magnon modes is determined by a simple lattice specific factor, together with the ratio of the strengths of the DM and Heisenberg exchange interactions, and that magnon entanglement can be detected by means of quantum homodyne techniques. As an illustration of the relevance of our findings for possible entanglement experiments in the solid state, a typical antiferromagnet with the perovskite crystal structure is considered, and it is shown that long wave length magnon modes have the highest degree of entanglement.
ECONOMIC THEORY AND SHEEP-CATTLE COMBINATIONS
Creators: name: Wills, Ian R.
name: Lloyd, Alan G.
name: Wills, Ian R.
name: Lloyd, Alan G.
Publisher: name: Unknown
Year: 1973
Subjects: Livestock Production/Industries

description: This paper deals with the problem of determining the optimum combination of sheep and beef cattle on grazing properties. A major difficulty is that iso-cost functions (production possibility curves) for sheep and cattle are unstable and difficult to estimate because of sheep-cattle-pasture interaction. After discussion of theoretical difficulties consideration is given to practical approaches, based on the iso-cost function concept, which might provide graziers with useful guide-lines. Evidence is presented which suggests that the substitution rate between sheep and cattle with respect to pasture is not constant, and probably varies with stocking rate.
Synthesis of Polyglobalide by Enzymatic Ring Opening Polymerization Using Pressurized Fluids
Creators: name: Guindani, Camila
name: Jaramillo, Wilfred A. G.
name: Candiotto, Graziâni
name: Rebelatto, Evertan A.
name: Tavares, Frederico W.
name: Pinto, José Carlos
name: Ndiaye, Papa M.
name: Nele, Márcio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Here, the synthesis of polyglobalide (PGl) by enzymatic ring-opening polymerization (e-ROP) is investigated, using pressurized carbon dioxide (CO2), pressurized CO2 + dichloromethane (DCM), and pressurized propane as solvents. Particularly, the effects of phase equilibrium on the course of e-ROP and PGl final properties are discussed. The partition coefficients of CO2, DCM, propane, globalide and PGl were calculated with help of thermodynamic models, providing proper understanding of monomer partitioning in the reaction system. Reactions performed in pure CO2 resulted in monomer conversions of 100%. Besides, when only one liquid phase was present inside the reactor, PGl samples presented low polydispersities and high average molecular weights. When carried out in CO2 + DCM, e-ROP resulted in lower monomer conversions and PGl samples with higher polydispersities and lower average molecular weights. Finally, reactions carried out in pressurized propane (200 bar) produced PGl samples with the highest average molecular weights among the analyzed products.
description: 41 pages, 9 figures, 8 tables
FINANCIAL CONTROL WITHIN COMMERCIAL FAMILY FARMS
Creators: name: Mauldon, Roger G.
name: Mauldon, Roger G.
Publisher: name: Unknown
Year: 1973
Subjects: Agricultural Finance

description: Types of control are briefly reviewed. It is asserted that control problems are of growing importance in farm management. Opportunities for control in farming are identified. An outline is given of the necessary ingredients of a financial control system for farm management. By way of example, a test is made of a hypothesis about the nature of financial control among a sample of commercial farmers. Finally, problems of planning for control are briefly examined.
Inverse-Compton scattering in the resolved jet of the high-redshift quasar PKS J1421-0643
Creators: name: Worrall, D. M.
name: Birkinshaw, M.
name: Marshall, H. L.
name: Schwartz, D. A.
name: Siemiginowska, A.
name: Wardle, J. F. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Despite the fact that kpc-scale inverse-Compton (iC) scattering of cosmic microwave background (CMB) photons into the X-ray band is mandated, proof of detection in resolved quasar jets is often insecure. High redshift provides favourable conditions due to the increased energy density of the CMB, and it allows constraints to be placed on the radio synchrotron-emitting electron component at high energies that are otherwise inaccessible. We present new X-ray, optical and radio results from Chandra, HST and the VLA for the core and resolved jet in the $z=3.69$ quasar PKS J1421-0643. The X-ray jet extends for about $4.5''$ (32 kpc projected length). The jet's radio spectrum is abnormally steep and consistent with electrons being accelerated to a maximum Lorentz factor of about 5000. Results argue in favour of the detection of inverse-Compton X-rays for modest magnetic field strength of a few nT, Doppler factor of about 4, and viewing angle of about $15^\circ$, and predict the jet to be largely invisible in most other spectral bands including the far- and mid-infrared and high-energy gamma-ray. The jet power is estimated to be about $3 \times 10^{46}$ erg s$^{-1}$ which is of order a tenth of the quasar bolometric power, for an electron--positron jet. The jet radiative power is only about 0.07 per cent of the jet power, with a smaller radiated power ratio if the jet contains heavy particles, so most of the jet power is available for heating the intergalactic medium.
description: 16 pages, 14 figures. Accepted for publication in MNRAS
ECONOMICS OF SIZE IN AUSTRALIAN FARMING
Creators: name: Anderson, Jock R.
name: Powell, Roy A.
name: Anderson, Jock R.
name: Powell, Roy A.
Publisher: name: Unknown
Year: 1973
Subjects: Industrial Organization

description: Economics of size is an important but relatively neglected aspect of Australian agriculture. The theory and methodology for analysis of economics of size are summarized and a survey made of evidence for Australian agricultural industries. The conclusion is reached that economies of size exist, particularly for small to medium farms and diseconomies appear to be absent. Further research is needed and some important areas are indicated.
State Trading Enterprises: A Canadian Perspective
Creators: name: Annand, Mel
name: Annand, Mel
Publisher: name: Unknown
Year: 2000
Subjects: subject: International Relations/Trade
subject: ideology
subject: state trading
subject: subsidies
subject: unfair trade
subject: WTO

description: This paper provides a Canadian perspective on the debate about state trading enterprises in the World Trade Organization. STEs carry out important economic functions as part of national policies. STEs can do this without distorting competitive equilibrium in trade. From an economic and legal standpoint, STEs can properly function within the WTO system. The paper comments on why WTO rules on STEs may be practically meaningless, given the lack of application of the STE rules in WTO dispute resolution. The suggestion is made that the direction of legal inquiry into STEs should focus on the question of trade influence, rather than on the political question of government control of STEs. The real economic trade effects of STEs are the important aspects of STE study, not the ideological aspects of STE governance.
Shadowing and Antishadowing in Neutrino Deep Inelastic Scattering
Creators: name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The coherence of multiscattering quark nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements. This picture leads to substantially different antishadowing for charged and neutral current processes, particularly in anti-neutrino reactions, thus affecting the extraction of the weak-mixing angle $\sin^2θ_W$.
description: 4 pages, 1 figure, Prepared for the International Conference on QCD and Hadronic Physics, Beijing, China, June 16-20 2005