1,720,967 research outputs found
Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon
No full textParra, L.A., Vizzini, A., Ercole, E., Geml, J. (2023): Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon. Phytotaxa 578 (3): 241-260, DOI: 10.11646/phytotaxa.578.3.3, URL: http://dx.doi.org/10.11646/phytotaxa.578.3.
FIGURE 7 in Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon
No full textFIGURE 7. Microscopical elements at the lamellae edge. A: LAPAG 680; B: KW-M 71176; C: LAPAG 333 (marked with an asterisk, rostrate cheilocystidia with a long filiform appendix at the apex); D: LAPAG 1084; E: TO-AV180518; F: LAPAG 471; G: LAPAG 201; H: LAPAG 1023. Scale bars = 10 μm. Photos by L. A. Parra.Published as part of Parra, L.A., Vizzini, A., Ercole, E. & Geml, J., 2023, Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon, pp. 241-260 in Phytotaxa 578 (3) on page 256, DOI: 10.11646/phytotaxa.578.3.3, http://zenodo.org/record/752311
FIGURE 3 in Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon
No full textFIGURE 3. Locations of the collecting sites of specimens of "Psalliota infida" and Agaricus bresadolanus in Turin. A. Gruppo Fiat, authentic specimen of "Psalliota infida" (duplicate in LAPAG 516). B. Viale Filippo Turati, authentic specimen of "Psalliota infida" (duplicate in LAPAG 1084). C. Parco del Valentino, Agaricus bresadolanus, TO-AV180518. D. Parco del Valentino, authentic specimen of "Psalliota infida". E. Fontana dei Francesi, authentic specimen of "Psalliota infida". Plate by L. A. Parra.Published as part of Parra, L.A., Vizzini, A., Ercole, E. & Geml, J., 2023, Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon, pp. 241-260 in Phytotaxa 578 (3) on page 249, DOI: 10.11646/phytotaxa.578.3.3, http://zenodo.org/record/752311
FIGURE 6. Spores. A in Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon
No full textFIGURE 6. Spores. A: LAPAG 680 (authentic material of A. bresadolanus). B: KW-M 71174 (holotype of A. romagnesii). C: LAPAG 1084. D: LAPAG 516. E: TO-AV180518. F: Spores depicted by Alessio in original publication of "Psalliota infida". G: LAPAG 389. H: LAPAG 609 (duplicate of "A. alessii" 881204.A.377). Scale bars = 10 μm. Photos by L. A. Parra.Published as part of Parra, L.A., Vizzini, A., Ercole, E. & Geml, J., 2023, Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon, pp. 241-260 in Phytotaxa 578 (3) on page 255, DOI: 10.11646/phytotaxa.578.3.3, http://zenodo.org/record/752311
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
FIGURE 5 in Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon
No full textFIGURE 5. Macroscopical variation of the specimens. A. LAPAG 1023 (duplicate from the specimen deposited in the private herbarium of A. R. Leach): white smooth pileus, robust habit, universal veil remnants at stipe base absent and pleasant odour. B. LAPAG 500: as LAPAG 1023 but slender habit. C. LAPAG 471: as LAPAG 1023 but coloured squamose pileus. D. LAPAG 389: as LAPAG 471 but with thick rhizomorphs. E. LAPAG 336: as LAPAG 471 but with universal veil remnants at stipe base. F. LAPAG 201: as LAPAG 336 but with a striking yellow discoloration at stipe base. G. LAPAG 333: as LAPAG 471 but pileus entirely coloured and squamose. H. LAPAG 1144: teratological specimen. Photos by: A. R. Leach: A; L. A. Parra: B–F; F. Sainz: G; R. Mei: H.Published as part of Parra, L.A., Vizzini, A., Ercole, E. & Geml, J., 2023, Morphological and phylogenetic studies of Agaricus bresadolanus, Agaricus infidus (nom. inval.) and Agaricus romagnesii (Agaricaceae) reveal their conspecificity and variation in toxicity of this taxon, pp. 241-260 in Phytotaxa 578 (3) on page 254, DOI: 10.11646/phytotaxa.578.3.3, http://zenodo.org/record/752311
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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