121,745 research outputs found
Screening sull’origine botanica e sulla composizione chimica di cinque frazioni diversamente colorate di polline raccolto dalle api
No full textVolatile compounds in different cultivars of Apium graveolens L.
No full textThe volatile compounds (VC) of 4 cultivars of Apium graveolens L. (cvs Sedano Nero di Trevi, D'Elne, Dorato d'Asti and Verde Pascal) were determined with HS-SPME and GC/MS. Eleven compounds were identified in cv Sedano Nero di Trevi, 17 compounds in cv D'Elne and 21 compounds in cv Verde Pascal. The main constituent of these cultivars was limonene. Twenty-one compounds were identified in cv Dorato d'Asti. The main constituent was gamma-terpinene. Sedano Nero di Trevi is different, compared with other cultivars, particularly for gamma-terpinene conten
Morphological, Histochemical and Phytochemical Investigation of the genus Hypericum of the Central Italy
No full textEffects of ozone on morpho-anatomy and physiology of Hedera helix
No full textChronic (60 ppb, 30 days, 5 h/d) and acute (200 ppb, 5 h) treatments with ozone were performed on ivy plants. Photosynthetic pigments decreased following the treatments, especially the chronic one. The fatty acids composition of cuticle was alterated. The activity of glyoxalase I and II increased significantly following the acute treatment. Both old and recently expanded leaves showed an increase in diffusion resistance and a reduction of the CO2 assimilatory activity, which was ascribed to stomatal constrains. The ecological implications of these alterations are discussed
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
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
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
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)
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