322,986 research outputs found
South Africa's agrarian question
No full textBased on an in-depth analysis of several contrasting agricultural regions, this book aims to assess South Africa's on-going agrarian reform and the country's agrarian dynamics. The conclusion is without doubt: Twenty years after the first democratic elections, the country's land pattern remains almost unchanged, and primary agriculture and its broader value-chains are more concentrated than ever. Without fundamentally questioning the highly specialised, fossil energy and synthetic input dependent, oligopolistic entrepreneurial agricultural production model, which is presently structuring the sector and is guiding the reforms, a more equitable redistribution of resources and value-addition will by no means be possible. This book examines and contributes to the structural questions that underpin the current stagnation of South Africa's agrarian reform. Presenting fresh approaches in analysing agrarian issues and tools to assess farming systems and agricultural development, this incisive study will be an important resource to policy makers, academics and those with an interest in agrarian reform
South Africa's agrarian question
No full textBased on an in-depth analysis of several contrasting agricultural regions, this book aims to assess South Africa's on-going agrarian reform and the country's agrarian dynamics. This book examines and contributes to the structural questions that underpin the current stagnation of South Africa's agrarian reform
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Toward rotational state-selective photoionization of THF+ ions
No full textThF has been chosen to replace HfF for a second-generation measurement of the electric dipole moment of the electron (eEDM). Compared to the currently running HfF eEDM experiment, ThF has several advantages: (i) the eEDM-sensitive state () is the ground state, which facilitates a long coherence time [1](ii) its effective electric field (35 GV/cm) is 50\% larger than that of HfF, which promises a direct increase of the eEDM sensitivity [2]and (iii) the ionization energy of neutral ThF is lower than its dissociation energy, which introduces greater flexibility in rotational state-selective photoionization via core-nonpenetrating Rydberg states [3]. In this talk, we first present our strategy of preparing and utilizing core-nonpenetrating Rydberg states for rotational state-selective ionization. Then, we report spectroscopic data of laser-induced fluorescence of neutral ThF, which provides critical information for multi-photon ionization spectroscopy.
[1] D. N. Gresh, K. C. Cossel, Y. Zhou, J. Ye, E. A. Cornell, Journal of Molecular Spectroscopy, 319 (2016), 1-9
[2] M. Denis, M. S. Nørby, H. J. A. Jensen, A. S. P. Gomes, M. K. Nayak, S. Knecht, T. Fleig, New Journal of Physics, 17 (2015) 043005.
[3] Z. J. Jakubek, R. W. Field, Journal of Molecular Spectroscopy 205 (2001) 197–220.Made available in DSpace on 2017-01-26T21:37:55Z (GMT). No. of bitstreams: 3
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Previous issue date: 2016-06-2
Demythifying contract farming: Evidence from rural South Africa
No full textThis paper intends to contribute to the ongoing debate about whether and how restructured agri-food markets can provide viable market opportunities for small-scale farmers in South Africa. It analyses contract farming from the small-scale farmer perspective to better understand the implications for small-scale farmers of contractual arrangements with processing and/or marketing firms. The paper, based on empirical research conducted in the Limpopo Province of South Africa using a combination of qualitative and econometric analyses, argues that contract farming is not a panacea for small-scale farmers. On the one hand, contract farming improves agricultural production for contract farmers who benefit from increased incomes, enables better access to services and resources, and creates new opportunities to participate in markets. However, on the other hand, the results show that contract farming remains limited and mostly involves the already better-off, who have benefitted from specific development paths and public support. This case study shows that contract farming in itself does not appear to provide an efficient means of reducing poverty, nor does it provide an institutional tool through which to improve rural livelihoods. It does, therefore, not represent a tool appropriate for the majority of small farmers or for redressing the historical imbalances in the South African agricultural sector
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Demythifying contract farming: Evidence from rural South Africa
No full textThis paper intends to contribute to the ongoing debate about whether and how restructured agri-food markets can provide viable market opportunities for small-scale farmers in South Africa. It analyses contract farming from the small-scale farmer perspective to better understand the implications for small-scale farmers of contractual arrangements with processing and/or marketing firms. The paper, based on empirical research conducted in the Limpopo Province of South Africa using a combination of qualitative and econometric analyses, argues that contract farming is not a panacea for small-scale farmers. On the one hand, contract farming improves agricultural production for contract farmers who benefit from increased incomes, enables better access to services and resources, and creates new opportunities to participate in markets. However, on the other hand, the results show that contract farming remains limited and mostly involves the already better-off, who have benefitted from specific development paths and public support. This case study shows that contract farming in itself does not appear to provide an efficient means of reducing poverty, nor does it provide an institutional tool through which to improve rural livelihoods. It does, therefore, not represent a tool appropriate for the majority of small farmers or for redressing the historical imbalances in the South African agricultural sector
Author's address:
No full textCan archives of audiovisual TV interviews be used to make authors more visible to students, and thereby reduce the learning gap between native and non-native language speakers in college classes? We examined students in a college course who learned about one scholar's ideas through watching an audiovisual TV interview (i.e., visible author format) and about another scholar's ideas through reading a formal text description (i.e., invisible author format). For the invisible author, native language speakers scored significantly higher than the non-native language speakers on a corresponding exam question (i.e., a cognitive measure), generated more words on the exam question (i.e., a motivational measure), and mentioned the author's name more often in answering the exam question (i.e., an affective measure). For the visible author, the groups did not differ on any of these measures. These findings provide evidence for the idea that making the author visible through audiovisual TV interviews can eliminate the learning gap between native and non-native language speakers. 3 Universities around the world serve students who are non-native speakers of th
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