cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MANAGEMENT AND RETURNS TO FARM SIZE: RESULTS OF A CASE STUDY USING PARAMETRIC AND NON-PARAMETRIC METHODOLOGY TO MEASURE SCALE EFFICIENCIES
Bestuur en skaalopbrengs: Resultate van 'n gevallestudie in die gebruik van parametriese en nie-parametriese metodes vir die meting van skaaldoeltreffendhede
Creators: name: Van Schalkwyk, H. D.
name: Van Zyl, J.
name: Sartorius Von Bach, H. J.
name: Van Schalkwyk, H. D.
name: Van Zyl, J.
name: Sartorius Von Bach, H. J.
Publisher: name: Unknown
Year: 1993
Subjects: Farm Management
Production Economics

description: Two hypotheses are tested empirically using cross sectional data from Vaalharts: Firstly, it is hypothesized that economies of scale exist and, secondly, that optimal farm size will not be the same for any two managers; the better the manager, the larger the optimum farm size. These hypotheses are tested by means of both parametric and non-parametric methods, respectively. Managerial skill was measured explicitly. The results support both the hypotheses which were tested empirically. There also appears to be no inconsistency between the results obtained with parametric or non-parametric methods. These findings have important implications for structural adjustment of South African agriculture.
TFApprox: Towards a Fast Emulation of DNN Approximate Hardware Accelerators on GPU
Creators: name: Vaverka, Filip
name: Mrazek, Vojtech
name: Vasicek, Zdenek
name: Sekanina, Lukas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Energy efficiency of hardware accelerators of deep neural networks (DNN) can be improved by introducing approximate arithmetic circuits. In order to quantify the error introduced by using these circuits and avoid the expensive hardware prototyping, a software emulator of the DNN accelerator is usually executed on CPU or GPU. However, this emulation is typically two or three orders of magnitude slower than a software DNN implementation running on CPU or GPU and operating with standard floating point arithmetic instructions and common DNN libraries. The reason is that there is no hardware support for approximate arithmetic operations on common CPUs and GPUs and these operations have to be expensively emulated. In order to address this issue, we propose an efficient emulation method for approximate circuits utilized in a given DNN accelerator which is emulated on GPU. All relevant approximate circuits are implemented as look-up tables and accessed through a texture memory mechanism of CUDA capable GPUs. We exploit the fact that the texture memory is optimized for irregular read-only access and in some GPU architectures is even implemented as a dedicated cache. This technique allowed us to reduce the inference time of the emulated DNN accelerator approximately 200 times with respect to an optimized CPU version on complex DNNs such as ResNet. The proposed approach extends the TensorFlow library and is available online at https://github.com/ehw-fit/tf-approximate.
description: To appear at the 23rd Design, Automation and Test in Europe (DATE 2020). Grenoble, France
Austrothaumalea macalpinei Theischinger 1986
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Thaumaleidae
Austrothaumalea
Austrothaumalea macalpinei

description: Austrothaumalea macalpinei Theischinger
 Austrothaumalea macalpinei Theischinger, 1986: 301.
 Material examined. New South Wales: 1 ?, Barrington Tops NP, Williams R, 480 m, subtrop. rainfor., 19.xii.1993 (CNC); 1 ?, Chichester SF, trib of Williams R, 600 m, 19.xii.1993 (AMS).
 Distribution. This species is confined to New South Wales.
 Remarks. The gonocoxal plate bears two groups of minute denticles on either side of the mid-line along the ventral margin, directed anteriorly. These denticles are not shown in Theischinger (1986, fig. 39).
description: Published as part of Sinclair, Bradley J., 2008, New Species of Austrothaumalea Tonnoir from Australia (Diptera: Thaumaleidae), pp. 1-12 in Records of the Australian Museum 60 (1) on page 8, DOI: 10.3853/j.0067-1975.60.2008.1490, http://zenodo.org/record/4676495
HOW NON-DAILY SMOKERS RESPOND TO MEASURES OF TOBACCO DEPENDENCE
Creators: name: Carlson, Emily J.
Publisher: name: American University
Year: 2023

description: Recent estimates show that there are approximately 9.3 million non-daily smokers in the United States, and that this population of smokers is growing, even as the number of daily smoker’s decreases (Jamal et al., 2015). In spite of low scores on measures of tobacco dependence (Shiffman et al., 2012ab; Shiffman et al., 2012c), non-daily smokers struggle to quit smoking and frequently relapse (Shiffman et al., 2012c). Tobacco dependence measures predict relapse with varying degrees of success (Courvoisier & Etter, 2010). There is evidence that certain response patterns on dependence measures can predict relapse (Piasecki et al., 2010). It is not known how well tobacco dependence measures predict long-term abstinence among non-daily smokers, who constitute a large (9.3 million) and growing segment of cigarette smokers in the United States (Jamal et al., 2015). The current study used agglomerative hierarchical cluster analysis to analyze the responses of non-daily cigarette smokers on a set of tobacco dependence questions from The Population Assessment of Tobacco and Health (PATH) research study. The aims of this study were to: (1) identify the existence of subgroups based upon response patterns, and (2) examine whether certain response patterns among non-daily smokers predict smoking status at a one year follow up point. Cluster analysis results placed the vast majority (95%) of the sample into one group, indicating that non-daily smokers are a homogenous group in terms of dependence items.
A momentum conserving model with anomalous thermal conductivity in low dimension
Creators: name: Basile, Giada
name: Bernardin, Cedric
name: Olla, Stefano
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Anomalous large thermal conductivity has been observed numerically and experimentally in one and two dimensional systems. All explicitly solvable microscopic models proposed to date did not explain this phenomenon and there is an open debate about the role of conservation of momentum. We introduce a model whose thermal conductivity diverges in dimension 1 and 2 if momentum is conserved, while it remains finite in dimension $d\ge 3$. We consider a system of harmonic oscillators perturbed by a non-linear stochastic dynamics conserving momentum and energy. We compute explicitly the time correlation function of the energy current $C\_J(t)$, and we find that it behaves, for large time, like $t^{-d/2}$ in the unpinned cases, and like $t^{-d/2-1}$ when an on site harmonic potential is present. Consequently thermal conductivity is finite if $d\ge 3$ or if an on-site potential is present, while it is infinite in the other cases. This result clarifies the role of conservation of momentum in the anomalous thermal conductivity in low dimensions.
Additional file 5 of Exercising with Baxter: preliminary support for assistive social-physical human-robot interaction
Creators: name: Fitter, Naomi T.
name: Mohan, Mayumi
name: Kuchenbecker, Katherine J.
name: Johnson, Michelle J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5 Gameplay flow of the Teach Game.
PhaseTracer: tracing cosmological phases and calculating transition properties
Creators: name: Athron, Peter
name: Balazs, Csaba
name: Fowlie, Andrew
name: Zhang, Yang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a C++ software package called PhaseTracer for mapping out cosmological phases, and potential transitions between them, for Standard Model extensions with any number of scalar fields. PhaseTracer traces the minima of effective potential as the temperature changes, and then calculates the critical temperatures, at which the minima are degenerate. PhaseTracer is constructed with modularity, flexibility and practicality in mind. It is fast and stable, and can receive potentials provided by other packages such as FlexibleSUSY. PhaseTracer can be useful analysing cosmological phase transitions which played an important role in the very early evolution of the Universe. If they were first order they could generate detectable gravitational waves and/or trigger electroweak baryogenesis to generate the observed matter anti-matter asymmetry of the Universe. The code can be obtained from https://github.com/PhaseTracer/PhaseTracer.
description: 32 pages, 5 figures, matches published version
HOW NON-DAILY SMOKERS RESPOND TO MEASURES OF TOBACCO DEPENDENCE
Creators: name: Carlson, Emily J.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Recent estimates show that there are approximately 9.3 million non-daily smokers in the United States, and that this population of smokers is growing, even as the number of daily smoker’s decreases (Jamal et al., 2015). In spite of low scores on measures of tobacco dependence (Shiffman et al., 2012ab; Shiffman et al., 2012c), non-daily smokers struggle to quit smoking and frequently relapse (Shiffman et al., 2012c). Tobacco dependence measures predict relapse with varying degrees of success (Courvoisier & Etter, 2010). There is evidence that certain response patterns on dependence measures can predict relapse (Piasecki et al., 2010). It is not known how well tobacco dependence measures predict long-term abstinence among non-daily smokers, who constitute a large (9.3 million) and growing segment of cigarette smokers in the United States (Jamal et al., 2015). The current study used agglomerative hierarchical cluster analysis to analyze the responses of non-daily cigarette smokers on a set of tobacco dependence questions from The Population Assessment of Tobacco and Health (PATH) research study. The aims of this study were to: (1) identify the existence of subgroups based upon response patterns, and (2) examine whether certain response patterns among non-daily smokers predict smoking status at a one year follow up point. Cluster analysis results placed the vast majority (95%) of the sample into one group, indicating that non-daily smokers are a homogenous group in terms of dependence items.
Osirinus santiagoi Melo & Zanella 2003, new combination
Creators: name: Melo, Gabriel A. R.
name: Zanella, Fernando C. V.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Osirinus
Osirinus santiagoi

description: Osirinus santiagoi (Almeida), new combination
(figures 11–15)
 Osiris santiagoi Almeida, 1996: 126. Holotype female, Brazil: Paraná, Jaguariaíva (DZUP; not examined).
 Osiris rutilans, Shanks (1986): 3, 5, 6, 8, 15, 44–45 (in part).
 Osirinus rutilans, Roig-Alsina (1989): 17, 18, 20 (in part).
 Comments
 This species was originally described as an Osiris. Although we examined a male and a female paratype, Almeida’s original description easily allows recognizing her species as an Osirinus: (1) head wider than long; (2) mandible with only one subapical tooth; (3) small and widely separate dorsal pronotal lobes; (4) male with pygidial plate; (5) eyes slightly converging below; (6) small body size; (7) parocular area, gena and mesepisternum with abundant plumose setae. The first four characters suggest a species of Protosiris or Osirinus, while the last three indicate an Osirinus.
 The type specimens of santiagoi are from an area of ‘cerrado’ (Brazilian savannas) in the state of Paraná. The specimens we are attributing to this species also all came from areas occupied by cerrado. Most of Almeida’s specimens had a dark mesosoma (except the legs), but two of her females had a bright reddish brown mesosoma. Among the material we examined, only the male from Botucatu, São Paulo, had a dark mesosoma.
The genitalia, S7 and S8 of a male paratype are depicted in figures 11–15, respectively.
 Material examined
 Brazil, Mato Grosso: 1 female and 1 male (MZSP), ‘ Utiariti, Rio Papagaio, Mt,. X.1966, Lenko & Pereira’; 1 male (MZSP), same data except ‘30/X/66, K. Lenko col.’. Paraná: one male paratype (DZUP), ‘JAGUARIAIVA (PARANA), BRASIL 5.XII.1986, LAROCA & HARADA LEG’; one female paratype (DZUP), same data except ‘ 6.XII.1986 ’. São Paulo: one male (DZUP), ‘ Rio-Claro, SP, X/1939, Pe. F. Pereira’; one male (DZUP), ‘CORUMBATAI SP, Brasil XI 1963, Fac. Fil. Rio Claro’; one female (SEMK), ‘ BRASIL, São Paulo, São Bernardo do Campo, February 1960 (W. Bokermann)’; one female (RPSP), ‘ 119’, ‘ Faz. Sta. Carlota, Cajuru-SP-Brasil, hs 08-10/ 18-XI-1988, S. R. M.Pedro leg, Fls 1568’ and ‘ Cerrado — Pl. 119, Rudgea vibernioides Benth. RUBIACEAE’ (plus a few additional identification labels); one male (RPSP), ‘ Brasil, Est. S. Paulo, 9.XI.1970, Botucatu, Veget.: Cerrado’, ‘leg. I. & G. Gottsberger, Declienxia fructicosa ’ and ‘800 ’.
description: Published as part of Melo, Gabriel A. R. & Zanella, Fernando C. V., 2003, The species of the parasitic bee genus Osirinus (Hymenoptera, Apidae), pp. 2919-2929 in Journal of Natural History 37 (24) on pages 2926-2927, DOI: 10.1080/0022293021000007516, http://zenodo.org/record/4675337
FAKTORE WAT DIE BEVORDERING VAN ONDERNEMERSKAP IN DIE SWART LANDBOU STREM
Factors which restrict the promotion of entrepreneurship in black agriculture
Creators: name: Venter, G. C. R.
name: Vink, N.
name: Viljoen, M. F.
name: Venter, G. C. R.
name: Vink, N.
name: Viljoen, M. F.
Publisher: name: Unknown
Year: 1993
Subjects: Agricultural and Food Policy
Public Economics

description: Agricultural stagnation in the homelands can be ascribed to political, social, economic and technical factors. Apart from the problem of limited access to opportunities, black commercial farmers also experience managerial problems in certain functional areas which can effect their decision-making. The aim of the paper is to identify the individual environmental constraints that could effect the farming enterprise and agricultural development. A stratified randomized sample of 30 black commercial farmers in Lebowa was included in a questionaire survey. The following important constraints were identified: farmers age and low educational level; lack of managerial abilities in certain functional areas; the traditional land occupation system; small size of land holdings; shortage of irrigation water and labour; and insufficient credit and marketing facilities.
Effectiveness of contractor development programme in KwaZulu-Natal
Creators: name: Haupt, Theo
name: Hadebe, Weziwe
name: Akinlolu, Mariam
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 91103 Ocean Engineering
subject: FOS: Environmental engineering
subject: 91503 Engineering Practice
subject: FOS: Other engineering and technologies
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 90504 Earthquake Engineering
subject: FOS: Civil engineering
subject: 90701 Environmental Engineering Design
subject: 90702 Environmental Engineering Modelling
subject: 90502 Construction Engineering
subject: 99999 Engineering not elsewhere classified

description: The article investigates the level of satisfaction with the South African Department of Public Work’s Contractor Development Programme (CDP) in terms of its effectiveness. A mixed method research approach (combination of quantitative and qualitative approach) is employed for the collection of both statistical and in-depth information on the perceptions of participants on the CDP. Survey data collected from 364 participants and interview data from six focus-group participants in the KwaZulu?Natal (KZN) province of South Africa forms the data sets for the article. Data was analysed using the Statistical Package for the Social Sciences (SPSS) version 23. Descriptive statistics is used to report the reliability of the various constructs, mean scores, standard deviations, and correlations. The findings show that participants not only deemed the programme unsatisfactory, but also reported an overall negative experience with the programme. Specific findings show that the CDP offers no training opportunities to registered members, lacks effective communication mediums, and benefited only those with political connections. The correlation results show that there is a strongrelation between population and registering on the CDP, thus confirming that the open and easy access when registering on the CDP allows any interested person to automatically become a contractor creating the possibility of abuse of the programme. The study was limited to KZN contractors only and may, therefore, not be generalised to the entire national population of contractors. This article is relevant, as it gives insight into how satisfied contractors are with the CDP. It may help potential contractors to consider whether the CDP will be beneficial to them, before they decide to join the programme.
Measurements of ZnWO$_4$ anisotropic response to nuclear recoils for the ADAMO project
Creators: name: Belli, P.
name: Bernabei, R.
name: Cappella, F.
name: Caracciolo, V.
name: Cerulli, R.
name: Cherubini, N.
name: Danevich, F. A.
name: Incicchitti, A.
name: Kasperovych, D. V.
name: Merlo, V.
name: Piccinelli, E.
name: Polischuk, O. G.
name: Tretyak, V. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Anisotropic scintillators can offer a unique possibility to exploit the so-called directionality approach in order to investigate the presence of those Dark Matter (DM) candidates inducing nuclear recoils. In fact, their use can overcome the difficulty of detecting extremely short nuclear recoil traces. In this paper we present recent measurements performed on the anisotropic response of a ZnWO$_4$ crystal scintillator to nuclear recoils, in the framework of the ADAMO project. The anisotropic features of the ZnWO$_4$ crystal scintillators were initially measured with $α$ particles; those results have been also confirmed by the additional measurements presented here. The experimental nuclear recoil data were obtained by using a neutron generator at ENEA-CASACCIA and neutron detectors to tag the scattered neutrons; in particular, the quenching factor values for nuclear recoils along different crystallographic axes have been determined for three different neutron scattering angles (i.e. nuclear recoils energies). From these measurements, the anisotropy of the light response for nuclear recoils in the ZnWO$_4$ crystal scintillator has been determined at 5.4 standard deviations.
description: 22 pages; 12 figures. In press on Eur. Phys. J. A
Correlated adiabatic and isocurvature CMB fluctuations in the wake of the WMAP
Creators: name: Valiviita, Jussi
name: Muhonen, Vesa
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In general correlated models, in addition to the usual adiabatic component with a spectral index n_ad1 there is another adiabatic component with a spectral index n_ad2 generated by entropy perturbation during inflation. We extend the analysis of a correlated mixture of adiabatic and isocurvature CMB fluctuations of the WMAP group, who set the two adiabatic spectral indices equal. Allowing n_ad1 and n_ad2 to vary independently we find that the WMAP data favor models where the two adiabatic components have opposite spectral tilts. Using the WMAP data only, the 2-sigma upper bound for the isocurvature fraction f_iso of the initial power spectrum at k_0=0.05 Mpc^{-1} increases somewhat, e.g., from 0.76 of n_ad2 = n_ad1 models to 0.84 with a prior n_iso < 1.84 for the isocurvature spectral index. We also comment on a possible degeneration between the correlation component and the optical depth tau. Moreover, the measured low quadrupole in the TT angular power could be achieved by a strong negative correlation, but then one needs a large tau to fit the TE spectrum.
description: 5 pages, 7 figures. V2: Added 2 figures and revised a bit the results section. This is a slightly longer version than the published one in PRL
THE (SMALL) FARMER SUPPORT PROGRAMME AFTER SEVEN YEARS OF IMPLEMENTATION
Creators: name: Van Rooyen, Johan
name: Van Rooyen, Johan
Publisher: name: Unknown
Year: 1993
Subjects: Agricultural and Food Policy
Public Economics

description: DBSA's effort to introduce a small holder farmer support system through its funding programme was partly motivated as a response to the ineffective but costly large scale project approach in black agriculture. The aim was to construct a paradigm shift in policy thinking as well as to institute a shift in investment to provide access to support services to large numbers of small holders in homelands. It was further argued that such an approach conceptually constitutes the normalization of an agricultural support system which could provide a basis for integrating black and white agricultural services and for policy reform in South Africa. The programme approach also provided the basis to support farming within an integrated rural context. The FSP approach to agricultural development achieved the status of an important strategy for rural development in South Africa's homeland areas and it is estimated that 55 000 people are presently directly supported by 35 FSPs. Its application is characterised by a flexible "learning by doing" and "user friendly" approach. This philosophy largely explains the expansion and related changes in the implementation of FSPs. It is expected that FSPs will expand into a major development strategy in South African agriculture, especially in the rural sector in the homeland areas.
SOLVENCY, ENTREPRENEURIAL ACTION AND THE ECONOMIC ENVIRONMENT: LESSONS FROM THE RECENT PAST
Creators: name: Van Schalkwyk, H. D.
name: Groenewald, J. A.
name: Van Schalkwyk, H. D.
name: Groenewald, J. A.
Publisher: name: Unknown
Year: 1993
Subjects: Agricultural and Food Policy
Public Economics

description: Average solvency in South African agriculture deteriorated considerably between 1976 and 1985, improved somewhat from 1985 to 1988 and thereafter deteriorated once again. Considerable interregional differences exist in relative levels of solvency. Entrepreneurial and managerial influences on this are manifested through financial management involving particularly mechanization, choice of financiers and risk acceptance or avoidance. A cross sectional and discriminant analysis was done to explain solvency differences between regions. Solvency was shown to be a function of land ownership, education, percentage established pastures, enterprise mix, financier, type of management and long term average rainfall. The output/input price ratio, enterprise mix and percentage of debt load financed by co-operatives explained the difference between regions with below and above average solvency ratios.
A determinantal expression and a recursive relation of the Delannoy numbers
Creators: name: Qi, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 11B83, Secondary 05A15, 05A10, 11B75, 11C20, 60G50

description: In the paper, by a general and fundamental, but non-extensively circulated, formula for derivatives of a ratio of two differentiable functions and by a recursive relation of the Hessenberg determinant, the author finds a new determinantal expression and a new recursive relation of the Delannoy numbers. Consequently, the author derives a recursive relation for computing central Delannoy numbers in terms of related Delannoy numbers.
description: 11 pages
Supernova constraints on alternative models to dark energy
Creators: name: Gong, Yungui
name: Duan, Chang-Kui
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent observations of type Ia supernovae suggest that the universe is accelerating now and decelerated in the recent past. This may be the evidence of the breakdown of the standard Friedmann equation. The Friedmann equation $H^2\sim ρ$ is modified to be a general form $H^2=g(ρ)$. Three models with particular form of $g(ρ)$ are considered in detail. The supernova data published by \citet{tonry}, \citet{ddsg} and \citet{raknop03} are used to analyze the models. After the best fit parameters are obtained, we then find out the transition redshift $z_{\rm T}$ when the universe switched from the deceleration phase to the acceleration phase.
description: 5 pages, 4 figures, use mn2e class, accepted for publication by MNRAS
EVALUERING VAN 'N VOERGRAANBEDRYF IN DIE WES-KAAP
Creators: name: Uys, A. J.
name: Uys, A. J.
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
Production Economics

description: The surplus production of wheat and barley forces the produser in die Western Cape to seek alternatives because a future marketing system, which due to influences of GATT and deregulation, may not accomodate the cost of these surplusses caused by the geografical disadvantages of this region. The quest for an alternative energy-source to replace maize, which is to expensive due to the cost of transport, is an alternative for the Western Cape. The initial stages of the implimentation of this industry is well on the way, but attention should still be given to those critical factors that insure the success and continuity of such an industry.
Transport in Ultraclean YBa$_2$Cu$_3$O$_7$: neither Unitary nor Born Impurity Scattering
Creators: name: Hill, R. W.
name: Lupien, Christian
name: Sutherland, M.
name: Boaknin, Etienne
name: Hawthorn, D. G.
name: Proust, Cyril
name: Ronning, F.
name: Taillefer, Louis
name: Liang, Ruixing
name: Bonn, D. A.
name: Hardy, W. N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The thermal conductivity of ultraclean YBa$_2$Cu$_3$O$_7$ was measured at very low temperature in magnetic fields up to 13 T. The temperature and field dependence of the electronic heat conductivity show that two widespread assumptions of transport theory applied to unconventional superconductors fail for clean cuprates: impurity scattering cannot be treated in the usual unitary limit (nor indeed in the Born limit), and scattering of quasiparticles off vortices cannot be neglected. Our study also sheds light on the long-standing puzzle of a sudden onset of a "plateau" in the thermal conductivity of Bi-2212 versus field.
description: 5 pages, 3 figures, submitted to Physical Review Letters
title: Zielony placemaking – estetyzacja terenów zieleni publicznej jako element planowania uspołecznionego
Creators: name: Pazder, Dominika
Publisher: name: Publishing House of Poznan University of Technology
Year: 2020

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 1, 151-170
A reliable description of the radial oscillations of compact stars
Creators: name: Di Clemente, Francesco
name: Mannarelli, Massimo
name: Tonelli, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We develop a numerical algorithm for the solution of the Sturm-Liouville differential equation governing the stationary radial oscillations of nonrotating compact stars. Our method is based on the Numerov's method that turns the Sturm-Liouville differential equation in an eigenvalue problem. In our development we provide a strategy to correctly deal with the star boundaries and the interfaces between layers with different mechanical properties. Assuming that the fluctuations obey the same equation of state of the background, we analyze various different stellar models and we precisely determine hundreds of eigenfrequencies and of eigenmodes. If the equation of state does not present an interface discontinuity, the fundamental radial eigenmode becomes unstable exactly at the critical central energy density corresponding to the largest gravitational mass. However, in the presence of an interface discontinuity, there exist stable configurations with a central density exceeding the critical one and with a smaller gravitational mass.
description: 13 pages, 8 figures
Additional file 2 of Weight development between age 5 and 10 years and its associations with dietary patterns at age 5 in the ABCD cohort
Creators: name: Viyan Rashid
name: Martinette T. Streppel
name: Engberink, Marielle F.
name: Weijs, Peter J. M.
name: Nicolaou, Mary
name: Verhoeff, Arnoud P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Antropometric characteristics at age 5 and 10 years by ethnicity, SES and sex in the ABCD study population (n = 1765).
Additional file 3 of Exercising with Baxter: preliminary support for assistive social-physical human-robot interaction
Creators: name: Fitter, Naomi T.
name: Mohan, Mayumi
name: Kuchenbecker, Katherine J.
name: Johnson, Michelle J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3 Gameplay flow of the Stretch Game.
ELICITATION OF RISK PREFERENCES FOR IRRIGATION FARMERS IN THE WINTERTON AREA: WEALTH RISK VERSUS ANNUAL INCOME RISK
Meting van die risiko-voorkeure van besproeiingsboere in die Wintertongebied: Inkomste- versus welvaartrisiko
Creators: name: Botes, J. H. F.
name: Bosch, D. J.
name: Oosthuizen, L. K.
name: Botes, J. H. F.
name: Bosch, D. J.
name: Oosthuizen, L. K.
Publisher: name: Unknown
Year: 1994
Subjects: Resource /Energy Economics and Policy
Risk and Uncertainty

description: The purpose of this article is to measure the absolute risk aversion coefficients (RACs) of irrigation farmers in the Winterton area if annual income and wealth are at stake. Decision makers became more risk averse when wealth instead of annual income is at stake. RACs measured at low, medium and high annual income and wealth levels, showed no change when annual income or wealth levels increased. The majority of irrigation farmers have risk neutral annual income and wealth risk preferences.
'N ONDERSOEK NA ENTREPRENEURSKAP TEEN DIE AGTERGROND VAN GROOTSKAALSE GROEIENDE WERKLOOSHEID
An investigation into entrepreneurship given large scale and growing unemployment
Creators: name: Swart, Hansie
name: Kleynhans, Theo
name: Swart, Hansie
name: Kleynhans, Theo
Publisher: name: Unknown
Year: 1994
Subjects: Agricultural and Food Policy
Labor and Human Capital

description: The purpose of this article is to make a contribution towards greater success with the promotion of entrepreneurship in South Africa. Unemployment in South Africa is a large and growing problem which cannot be solved by merely intensifying existing measures of employment creation. The promotion of entrepreneurship is therefore suggested as a supplementary approach to solving the unemployment problem. The lack of success with the promotion of entrepreneurship in the past indicates the need for an alternative paradigm. The concept of development, as understood by the social systems approach, is suggested as such an alternative paradigm of entrepreneurship. A framework of aspirations, abilities and context is derived from this paradigm to put existing measures for promoting entrepreneurship into perspective. Together with the findings of an empirical investigation into entrepreneurship in the Coloured community in the Southern and Western Cape, this classification is used as a basis for recommendations and suggestions for more effective promotion of entrepreneurship.
ELASTICITIES OF SUBSTITUTION BETWEEN CARBOHYDRATES IN SOUTH AFRICA
Elastisiteite van substitusie tussen koolhidrate in Suid-Afrika
Creators: name: Sartorius Von Bach, Helmke
name: Van Zyl, Johan
name: Sartorius Von Bach, Helmke
name: Van Zyl, Johan
Publisher: name: Unknown
Year: 1994
Subjects: Consumer/Household Economics
Research Methods/ Statistical Methods

description: Elasticities of substitution were estimated to determine how easily consumers switch from one carbohydrate product to another by using a translog function and the dual approach. Results indicate that carbohydrate pairs are substitutional in behaviour, which supports the observed interdependence between carbohydrates.
DIE RELEVANTHEID VAN VERSKILLENDE TIPE REKORDS VIR BOERDERYSUKSES
Creators: name: Duvel, G. H.
name: Brockman, H. G.
name: Groenewald, J. A.
name: Duvel, G. H.
name: Brockman, H. G.
name: Groenewald, J. A.
Publisher: name: Unknown
Year: 1994
Subjects: Agricultural and Food Policy
Farm Management

description: Against the background problem of general non- or poor recordkeeping, the value and relevance of record keeping is investigated in the context of farming profitability and success. Different types of records were investigated and related to economic measures of success. Although the NFI per ha correlates closely with record-keeping, the results indicate that record-keeping, although important, is not all that predominant and that the degree of sophistication of record-keeping systems is frequently perceived as inappropriate as far as the practical farming management situation is concerned.
Austrothaumalea cervulus Theischinger 1986
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Thaumaleidae
Austrothaumalea
Austrothaumalea cervulus

description: Austrothaumalea cervulus Theischinger
 Austrothaumalea cervulus Theischinger, 1986: 298.
 Material examined. New South Wales:1 ?,2 !!, Sydney, Edgecliff, Trumper Pk, cliff seepage, 9.x.1994 (AMS).
 Distribution. This species is known only from east of the Blue Mountains, in the Sydney, Royal National Park region.
 Remarks. The paramere of A. cervulus bears a pair of subapical fang-like lateral processes, directed anteriorly, which are not shown in Theischinger (1986, fig. 18).
description: Published as part of Sinclair, Bradley J., 2008, New Species of Austrothaumalea Tonnoir from Australia (Diptera: Thaumaleidae), pp. 1-12 in Records of the Australian Museum 60 (1) on page 6, DOI: 10.3853/j.0067-1975.60.2008.1490, http://zenodo.org/record/4676495
Additional file 21 of Exercising with Baxter: preliminary support for assistive social-physical human-robot interaction
Creators: name: Fitter, Naomi T.
name: Mohan, Mayumi
name: Kuchenbecker, Katherine J.
name: Johnson, Michelle J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 21 Demographic survey (survey 4) completed by study participants.
Cosmic Star Formation History and the Future Observation of Supernova Relic Neutrinos
Creators: name: Ando, Shin'ichiro
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the flux and event rate of supernova relic neutrinos (SRNs) and discuss their implications for the cosmic star formation rate. As reference models, we adopt the supernova rate model based on recent observations and the supernova neutrino spectrum numerically calculated by several groups. In the detection energy range E_e>10 MeV, which will possibly be a background-free region in the near future, the SRN event rate is found to be 1-2 yr^{-1} at a water Cerenkov detector with a fiducial volume of 22.5 kton, depending on the adopted neutrino spectrum. We also simulate the expected signal with one set of the reference models by using the Monte Carlo method and then analyze these pseudodata with several free parameters, obtaining the distribution of the best-fit values for them. In particular, we use a parameterization such that R_{SN}(z)=R_{SN}^0 (1+z)^α, where R_{SN}(z) is the comoving supernova rate density at redshift z and R_{SN}^0 and αare free parameters, assuming that the supernova neutrino spectrum and luminosity are well understood by way of a future Galactic supernova neutrino burst or the future development of numerical supernova simulations. The obtained 1σerrors for these two parameters are found to be δα/α= 30% (7.8%) and δR_{SN}^0/ R_{SN}^0 = 28% (7.7%) for a detector with an effective volume of 22.5 kton 5 yr (440 kton 5 yr), where one of the parameters is fixed. On the other hand, if we fix neither of the values for these two parameters, the expected errors become rather large, δα/α= 37% and δR_{SN}^0/ R_{SN}^0 = 55%, even with an effective volume of 440 kton 5 yr.
description: 12 pages, 11 figures, corrected minor typos, accepted by ApJ
Cracking the copyright dilemma in software preservation : protecting digital culture through fair use consensus
Creators: name: Butler, Brandon
name: Aufderheide, Patricia
name: Jaszi, Peter
name: Cox, Krista
Publisher: name: Journal of Copyright in Education and Librarianship
Year: 2023
Subjects: classificationCode: 46
subject: Information and computing sciences

description: Published as: Butler, B., Aufderheide, P., Jaszi, P., & Cox, K. (2019). Cracking the Copyright Dilemma in Software Preservation: Protecting Digital Culture through Fair Use Consensus? Journal of Copyright in Education and Librarianship, 3(3), 1-23. https://doi.org/10.17161/jcel.v3i3.10267© 2019 Brandon Butler, Patricia Aufderheide, Peter Jaszi, and Krista Cox. This article has been dedicated to the public domain by the authors under a Creative Commons Pubic Domain Mark.
Cracking the copyright dilemma in software preservation : protecting digital culture through fair use consensus
Creators: name: Butler, Brandon
name: Aufderheide, Patricia
name: Jaszi, Peter
name: Cox, Krista
Publisher: name: American University
Year: 2023

description: Published as: Butler, B., Aufderheide, P., Jaszi, P., & Cox, K. (2019). Cracking the Copyright Dilemma in Software Preservation: Protecting Digital Culture through Fair Use Consensus? Journal of Copyright in Education and Librarianship, 3(3), 1-23. https://doi.org/10.17161/jcel.v3i3.10267© 2019 Brandon Butler, Patricia Aufderheide, Peter Jaszi, and Krista Cox. This article has been dedicated to the public domain by the authors under a Creative Commons Pubic Domain Mark.
Field-induced phase transitions of the Kitaev material $α$-RuCl$_3$ probed by thermal expansion and magnetostriction
Creators: name: Gass, S.
name: Cônsoli, P. M.
name: Kocsis, V.
name: Corredor, L. T.
name: Lampen-Kelley, P.
name: Mandrus, D. G.
name: Nagler, S. E.
name: Janssen, L.
name: Vojta, M.
name: Büchner, B.
name: Wolter, A. U. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: High-resolution thermal expansion and magnetostriction measurements were performed on single crystals of $α$-RuCl$_3$ in magnetic fields applied parallel to the Ru-Ru bonds. The length changes were measured in the direction perpendicular to the honeycomb planes. Our data show clear thermodynamic characteristics for the field-induced phase transition at the critical field $μ_0H_{c1} = 7.8(2)$ T where the antiferromagnetic zigzag order is suppressed. At higher fields, a kink in the magnetostriction coefficient signals an additional phase transition around $μ_0H_{c2} \approx 11$ T. The extracted Grüneisen parameter shows typical hallmarks for quantum criticality near $H_{c1}$, but also displays anomalous behavior above $H_{c1}$. We compare our experimental data with linear spin-wave calculations employing a minimal Kitaev-Heisenberg model in the semiclassical limit. Most of the salient features are in agreement with each other, however, the peculiar features in the high-field region above $H_{c1}$ cannot be accounted for in our modelling and hence suggest a genuine quantum nature. We construct a phase diagram for $α$-RuCl$_3$ showing two low-temperature transitions induced by an in-plane field along the Ru-Ru bonds.
description: 14 pages, 10 figures
Additional file 1 of Weight development between age 5 and 10 years and its associations with dietary patterns at age 5 in the ABCD cohort
Creators: name: Viyan Rashid
name: Martinette T. Streppel
name: Engberink, Marielle F.
name: Weijs, Peter J. M.
name: Nicolaou, Mary
name: Verhoeff, Arnoud P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Mean (SD) BMI z-scores per BMI category at age 5 and 10 years by ethnicity and SES in the ABCD study population (n = 1765).
Spiral shocks, triggering of star formation and the velocity dispersion in Giant Molecular Clouds
Creators: name: Bonnell, I. A.
name: Dobbs, C. L.
name: Robitaille, T. R.
name: Pringle, J. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present numerical simulations of the passage of clumpy gas through a galactic spiral shock and the subsequent formation of giant molecular clouds (GMCs). The spiral shock forms dense clouds while dissipating kinetic energy, producing regions that are locally gravitationally bound and collapse to form stars. The effect of the clumpiness of gas as it passes through the shock is to generate chaotic internal motions in the gas. The kinematics of these motions are found to agree with the observed velocity-dispersion/size relation found in star-forming regions. In contrast to the standard picture where continuously driven turbulence generates the density inhomogeneities in star-forming clouds, we find here that it is the clumpiness of the interstellar gas that produces the chaotic motions as it passes through the spiral shock and initiates the star formation process. The velocity dispersion can be understood as being due to the random mass loading of clumps as they converge in the spiral shock. In this model there is no need for any internal or external continuous driving mechanism for the 'turbulence'. The coupling of the clouds' internal kinematics to their externally triggered formation removes the need for the clouds to be self-gravitating. Indeed, while clearly some parts of the clouds are self-gravitating and able to form stars, most of the molecular material remains gravitationally unbound. This can provide a simple explanation for the low efficiency of star formation.
description: 9 pages, 6 figures, accepted for publication in MNRAS
Possible unconventional superconductivity in Na$_x$CoO$_2$yH$_2$O probed by $μ$SR
Creators: name: Higemoto, Wataru
name: Ohishi, Kazuki
name: Koda, Akihiro
name: Kadono, Ryosuke
name: Ishida, Kenji
name: Takada, Kazunori
name: Sakurai, Hiroya
name: Takayama-Muromachi, Eiji
name: Sasaki, Takayoshi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The superconducting property of recently discovered sodium cobalt oxyhydrate, Na$_{0.35}$CoO$_2$1.3H$_2$O ($T_c=4.5$ K), has been studied by means of muon spin rotation/relaxation ($μ$SR) down to 2 K. It was found that the zero-field muon spin relaxation rate is independent of the temperature, indicating that no static magnetism appears in this compound, at least above 2 K. The result also provides evidence against the breakdown of time-reversal symmetry for the superconducting order parameter. Meanwhile, the muon Knight shift at 60 kOe shows no obvious reduction below $T_c$, suggesting that the local spin susceptibility is preserved upon a superconducting transition. Considering these observations, possible unconventional superconductivity of Na$_{0.35}$CoO$_2$1.3H$_2$O is discussed.
description: 9 pages, 5 figures
Austrothaumalea minnamurrae Theischinger 1986
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Thaumaleidae
Austrothaumalea
Austrothaumalea minnamurrae

description: Austrothaumalea minnamurrae Theischinger
 Austrothaumalea minnamurrae Theischinger, 1986: 304.
 Material examined. New South Wales: 1 ?, Blue Mtns NP, Blackheath, Grose Gorge, Govetts Ck, 1.xii.1993 (CNC); 2 ??, Blue Mtns NP, Valley of the Waters, cascading ck, 320 m, 3.i.1994, 9.iv.1995 (AMS); 1 ?, 7 km E Robertson, Macquarie Pass NP, 23.xi.1993 (CNC). Queensland: 1 ?, Bunya Mts NP, face of Little Falls, 8.ix.2002 (ZFMK). Victoria: 1 ?, Mt. Buffalo NP, Eurobin Ck, 30.xi.1994 (AMS).
 Distribution. This species ranges from southern Queensland to northern Victoria.
 Remarks. The specimen from Woombye that was only tentatively included by Theischinger (1986) in A. minnamurrae is undoubtedly an undescribed species. Unfortunately, this specimen has been lost (see Acknowledgments).
 The Bunya Mts specimen listed above possesses gonostyli with broad bases, similar to the Woombye species illustrated by Theischinger (1986, fig. 48). However all other key characters (e.g., shape of gonocoxal plate, lateral epandrial lobe) are very similar to that typical of A. minnamurrae.
description: Published as part of Sinclair, Bradley J., 2008, New Species of Austrothaumalea Tonnoir from Australia (Diptera: Thaumaleidae), pp. 1-12 in Records of the Australian Museum 60 (1) on page 8, DOI: 10.3853/j.0067-1975.60.2008.1490, http://zenodo.org/record/4676495