131,654 research outputs found
Vital Discussions: On Demand – Decolonise Your Bookshelf
No full textJoan Anim-Addo, Deirdre Osborne and Kadija Sesay have curated a decolonised reading list of 50 books that celebrate the wide and diverse experiences of people from around the world.
From literary giants like Toni Morrison and Chinua Achebe to less well-known but equally vital writers such as Trinidadian novelist Earl Lovelace or Indigenous Australian author Tony Birch, the novels recommended here are in turn haunting and lyrical, innovative and inspiring.
Join our speakers for a discussion of these books and their own ‘desert island’ books, as they explore how important it is to decolonise your bookshelves.
This event is presented in partnership with Quercus Books
Geologie van die Addo-Olifant Nasionale Park
No full textGeologiese aspekte van die Addo-olifant Nasionale Park word beskryf. Die topografie, fisiografie en geologic word behandel, asook 'n aanduiding van fossiele (hoofsaaklik Mollusca) wat aangetref word.
Geological aspects of the Addo Elephant National Park are described. The topography, physiography and geology is discussed, including a brief survey of fossils (mainly Mollusca) encountered
Turning point chronology for the Euro-Zone: A Distance Plot Approach
No full textWe propose a transparent way of establishing a turning point chronology for the euro area business cycle. Our analysis is achieved by exploiting the concept of recurrence plots, in particular distance plots, to characterise and detect turning points of the business cycle. Firstly, we apply the concept of recurrence plots on the US Industrial Production Index (IPI) series; this serves as a benchmark for our analysis since it already contains a reference chronology for the US business cycle, as provided by the Dating Committee of the National Bureau of Economic Research (NBER). We then use this concept to construct a turning point chronology for the euro area business cycle. In particular, we show that this approach detects turning points and helps with the study of the business cycle without a priori assumptions on the statistical properties of the underlying economic indicator
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
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
Fig. 1 in Distribution of the eggs of the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae) on the mopane tree
No full textFig. 1. Egg clusters of Retroacizzia mopani (arrowed) on mopane leaves.Published as part of Oppong, C. K., Addo-Bediako, A., Potgieter, M. J. & Wessels, D. C. J., 2009, Distribution of the eggs of the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae) on the mopane tree, pp. 185 in African Invertebrates 50 (1) on page 186, DOI: 10.5733/afin.050.0107, http://zenodo.org/record/766160
Nymphal behaviour and lerp construction in the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae)
No full textOppong, C. K., Addo-Bediako, A., Potgieter, M. J., Wessels, D. C. J. (2010): Nymphal behaviour and lerp construction in the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae). African Invertebrates 51 (1): 201, DOI: 10.5733/afin.051.0105, URL: http://www.bioone.org/doi/abs/10.5733/afin.051.010
Distribution of the eggs of the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae) on the mopane tree
No full textOppong, C. K., Addo-Bediako, A., Potgieter, M. J., Wessels, D. C. J. (2009): Distribution of the eggs of the mopane psyllid Retroacizzia mopani (Hemiptera: Psyllidae) on the mopane tree. African Invertebrates 50 (1): 185, DOI: 10.5733/afin.050.0107, URL: http://www.bioone.org/doi/abs/10.5733/afin.050.010
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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