1,721,965 research outputs found
WHAT DOES A DRY SEASON MEAN TO THE WESTERN AUSTRALIAN ECONOMY? A CGE INVESTIGATION
No full textIn this paper, by applying a Computable General Equilibrium model for Western Australia (called WAG), the impact of the 2002 dry season on the State’s wider economy is quantitatively analysed. An estimate of 40 percent loss in the production of five major groups of agricultural commodities is simulated into the model. The model results show that the State’s economy-wide total production declines by 2.3 percent. In 2001-02 dollar terms this production decline is worth more than $2.5 billion. The gross state product (GSP) for WA declines by more than one percent. The total value of the State’s exports and employment decline by 5.2 and 1.7 percent respectively.Agriculture, drought, CGE model, Production Economics,
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
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Synthesis of nitrogenous sugars.
No full textThe nitromethane cyclization of L'-methoxy diglycolic aldehyde was shown to furnish methyl 3-nitro-3-deoxy-alpha-L-arabino-pyranoside and methyl 3-nitro-3-deoxy-beta-D-arabinopyranoside as coproducts of the previously obtained beta-D-ribo isomer. The enantiometric dialdehyde, D'-methoxy-diglycolic aldehyde, afforded the corresponding alpha-D- and beta-L- arabino derivatives in addition to the main beta-L- ribo isomer. Catalytic hydrogenation of the four new nitroglycosides gave the corresponding aminoglycoside hydrochlorides. Acid hydrolysis of methyl 3-amino-3-deoxy-beta-D-arabinopyranoside hydrochloride and methyl 3-amino-3-deoxy-alpha-L-arabinopyranoside hydrochloride yielded the known 3-amino-3-deoxy-L-arabinose hydrochloride, respectively, as mutarotating beta-forms. The spontaneous epimerization, in aqueous solution, of aci -nitropentoside sodium salts was investigated and shown to lead to equilibria in which the erythro configuration predominates. The results of this first part of the thesis have been published.* The nitromethane cyclization was extended to a disaccharidic dialdehyde leading to an aci-nitro condensation product (yield 58%). Deionization and catalytic hydrogenation of the aci-nitro salt mixture afforded a crystalline alpha-D-glucopyranosyl 4-amino-4-deoxy-beta-D-heptulo-pyranoside hydrochloride that was subsequently converted to its crystalline N-acetate. The configuration of the nitrogenous heptulose moiety of the above disaccharides was partially elucidated by degradative studies, in the course of which a number of new nitrogenous heptulose derivatives was obtained. *H.H. Baer and A. Ahammad, Can. J. Chem., 41, 2931 (1963)
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
Synthesis of nitrogenous sugars.
No full textThe nitromethane cyclization of L'-methoxy diglycolic aldehyde was shown to furnish methyl 3-nitro-3-deoxy-alpha-L-arabino-pyranoside and methyl 3-nitro-3-deoxy-beta-D-arabinopyranoside as coproducts of the previously obtained beta-D-ribo isomer. The enantiometric dialdehyde, D'-methoxy-diglycolic aldehyde, afforded the corresponding alpha-D- and beta-L- arabino derivatives in addition to the main beta-L- ribo isomer. Catalytic hydrogenation of the four new nitroglycosides gave the corresponding aminoglycoside hydrochlorides. Acid hydrolysis of methyl 3-amino-3-deoxy-beta-D-arabinopyranoside hydrochloride and methyl 3-amino-3-deoxy-alpha-L-arabinopyranoside hydrochloride yielded the known 3-amino-3-deoxy-L-arabinose hydrochloride, respectively, as mutarotating beta-forms. The spontaneous epimerization, in aqueous solution, of aci -nitropentoside sodium salts was investigated and shown to lead to equilibria in which the erythro configuration predominates. The results of this first part of the thesis have been published.* The nitromethane cyclization was extended to a disaccharidic dialdehyde leading to an aci-nitro condensation product (yield 58%). Deionization and catalytic hydrogenation of the aci-nitro salt mixture afforded a crystalline alpha-D-glucopyranosyl 4-amino-4-deoxy-beta-D-heptulo-pyranoside hydrochloride that was subsequently converted to its crystalline N-acetate. The configuration of the nitrogenous heptulose moiety of the above disaccharides was partially elucidated by degradative studies, in the course of which a number of new nitrogenous heptulose derivatives was obtained. *H.H. Baer and A. Ahammad, Can. J. Chem., 41, 2931 (1963)
Participatory mapping of degradation and restoration processes in the Sundarbans mangrove ecosystem
No full texthttp://dx.doi.org/10.13039/501100004049 Catholic Academic Exchange Servic
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