129,551 research outputs found
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
Tayloriellina malmeana Wilk 2023, sp. nov.
No full text<i>Tayloriellina malmeana</i> Wilk, <i>sp. nov.</i> MycoBank number: 849807 <p>Thallus areolate-subsquamulose to granulose, orange yellow to creamy/grey side by side, with indistinct globose isidia in places.Apothecia abundant, zeorine, apothecial discs intensively orange.Ascospores polarilocular, ellipsoid to narrowly ellipsoid, medium size, 11‒17 × 4.5‒8.0 µm, septum 3.0‒5.0 µm.</p> <p>Type:— BOLIVIA. Dept. Cochabamba, Prov. Quillacollo: East Cordillera, area of Inkarraya-Sipesipe, dry Inter-Andean Valleys, 3146 m elev., 17°29’25”S, 66°22’09”W, rocky and shrubby slope, sunny place, E exposed, 17 December 2004, K. Wilk 3206 (KRAM-L-71766‒ holotype, LPB, B‒isotypes).</p> <p>(Fig. 1)</p> <p> <i>Thallus</i> tiny, areolate to subsquamulose or granulose, 70‒120 µm thick, usually discontinuous, irregular in outline, orange yellow, creamy to light gray, often occurs with orange and grayish thalli side by side, epruinose, subsquamules crenate, areoles 0.1‒0.4 mm in diam.; vegetative propagules scarce, as small globose isidia, concolorous with thallus, scattered; prothallus absent. <i>Thalline cortex</i> clearly paraplectenchymatous, even, 5‒45 µm thick, anthraquinone pigments present, K+ red, or absent; necral layer present, ca. 8.5 µm thick, covered by thin layer of granules insoluble in K and N, pol+ creamy; <i>algal layer</i> continuous, <i>algae</i> chlorococcoid, 5‒14 µm in diam.</p> <p> <i>Apothecia</i> abundant, crowded, initially immersed, then erumpent to adnate, round or angular by compression, distinctly zeorine, up to 0.7 mm in diam.; disc first concave, then plane, intensive orange, epruinose, even; <i>apothecial margin</i> medium thick, more or less elevated above discs; <i>proper margin</i> conspicuous, slightly paler than disc, epruinose; <i>thalline margin</i> usually partly reduced, orange or creamy/gray, even. <i>Parathecium</i> thin, 50‒70 µm thick, prosoplectenchymateous, anthraquinone pigments present. <i>Amphithecium</i> thick, 60‒130 µm thick, partly reduced, <i>apothecial cortex</i> indistinct, thin, 5‒15 µm thick, anthraquinone pigments present or absent; <i>algae</i> abundant, forming continuous layer (but algae fewer below hypothecium); <i>epihymenium</i> brownish yellow, granular (anthraquinones), K+ red; <i>hymenium</i> 75‒85 µm thick; <i>hypothecium</i> 85‒110 µm thick, prosoplectenchymatous, pale yellowish, oil droplets absent; paraphyses simple to branched, 1 µm broad at base, with upper cell 3‒4 µm wide. <i>Asci</i> 8-spored; <i>ascospores</i> hyaline, ellipsoid to narrowly ellipsoid, thin-walled, (11‒)13.5±1.2(‒17) × (4.5‒)5.8±0.6(‒8.0) µm, septum (3.0‒)3.7±0.7(‒5.0) µm (n= 79).</p> <p> <i>Pycnidia</i> not abundant, ostiole orange, partly immersed, <i>conidia</i> bacilliform, 2‒3 × 1 µm (n= 15).</p> <p> <i>Spot tests:</i> Apothecial discs K+ red, thallus K+ red or K–.</p> <p> <i>Etymology:</i> The epithet is derived from the name of the Swedish lichenologist Gustav Oskar Andersson Malme (1864–1937) in appreciation of his major contribution to the knowledge of South American Teloschistaceae.</p> <p> <i>Habitat and distribution:</i> The species was found growing on tree bark (branches) in semiarid, shrubby and rocky slops in Inter-Andean Valleys in Bolivia, at the elevation of ca. 3000 m. It is known only from Bolivia.</p> <p> The collecting site was shared with other species of the Teloschistaceae recently reported, e.g. <i>Cinnabaria boliviana</i> Wilk & Lücking <i>in</i> Wilk <i>et al.</i> (2021: 113), <i>Scutaria andina</i> (Räsänen 1939: 140) Søchting, Frödén & Arup <i>in</i> Arup <i>et al.</i> (2013: 63), and <i>Wetmoreana</i> spp. (Wilk <i>et al.</i> 2021).</p> <p> <i>Note: Tayloriellina malmeana</i> is characterized by delicate, orange-yellow, creamy to gray, areolate-subsquamulose to granulose thalli, and numerous, zeorine apothecia with intensive orange discs. Vegetative propagules are scarce, in the form of globose isidia, concolorous with the thallus. The thallus cortex is thin but clearly paraplectenchymatous, covered by a necral layer, with or without anthraquinones, but always with other colorless granules insoluble in K and N, pol+ creamy (Figs 1D–E).</p> <p> The molecular analysis indicates that <i>T. malmeana</i> is closely related to <i>T. microphyllina</i> (Fig. 2). The two species are, however, clearly separated by their thallus morphology—in <i>T. microphyllina</i> the thallus is generally much better developed and mostly dark orange, not dominated by apothecia, but producing distinct and usually abundant orange soralia. Moreover, <i>T. microphyllina</i> has distinctly smaller ascospores (10‒14 µm vs. 11‒17 µm in <i>T. malmeana</i>), and larger apothecia (up to 1.0 mm vs. up to 0.7 mm in <i>T. malmeana</i>) (Wetmore 2004).Another similar species, <i>“ Caloplaca ” trabicola</i> differs from <i>T. malmeana</i> in having a whitish areolate thallus, numerous and distinct pycnidia, and larger spores with distinctly thicker spore septa [(12‒)14.9±1.1(‒16) × (5.0‒)6.5±0.6(‒7.0) µm, septum (5.0‒)5.9±1.0(‒9.0) µm (n= 17)] (Fig. 3). <i>Tayloriellina malmeana</i> is also similar to <i>“ Caloplaca ” durietzii</i> H. Magn. (1953: 188). According to Magnusson (1953) the latter taxon, in comparison to <i>T. malmeana</i>, has a thallus that is mostly indistinct, it has ±lecanorine apothecia with crenulate margins, and it does not produce vegetative propagules. <i>“ Caloplaca ” durietzii</i> was examined by Gaya <i>et al.</i> (2015) and Kondratyuk <i>et al.</i> (2014, 2015b), and the results suggest that <i>“C.” durietzii</i> is nested in the subfamily Xanthorioideae, in the genus <i>Scythioria</i> S.Y. Kondr. <i>et al.</i> <i>in</i> Kondratyuk <i>et al.</i> (2014: 156). Finally, <i>T. malmeana</i> has some similarities with an undescribed species, <i>“ Caloplaca ”</i> sp. 5, studied by Wetmore (2007). Both produce globose isidia but the latter forms an orange, areolate thallus with abrupt margins, and apart from the isidia, the thallus margin may also bear small lobules.</p> <p> During taxonomic studies on <i>“ Caloplaca ” byrsonimae</i> s. lat. from Swedish Museum of Natural History (S), two specimens collected by Malme in Paraguay (S-L50600, S-L50601; Malme 1926) were found to be superficially very similar to the Bolivian material of <i>T. malmeana</i>. These were recognized as a putative undescribed species (under elaboration), different from <i>“C.” byrsonimae</i> (Malme 1926: 14) Zahlbr. (1930 [1931]: 80) s.str. The latter resembles <i>“ Caloplaca ” granularis</i> (Müll. Arg. 1888: 63) Zahlbr. (1930 [1931]: 141) in that it produces distinct yellow-orange soralia and it lacks a distinct thallus (see also Wetmore 2004). The Malme specimens from Paraguay differs from <i>T. malmeana</i> by having a better developed, permanently gray thallus (K–), common blastidia and longer ascospores with distinctly thicker spore septa. Due to its high similarity to <i>T. malmeana</i>, the Paraguay material of <i>“C.” byrsonimae</i> s. lat. may be considered to belong to <i>Tayloriellina</i>. However, further studies must be carried out especially to compare specimens from Paraguay with additional <i>“ Caloplaca ” trabicola</i> collections, which produces similar ascospores and also shares a similar morphology.</p> <p> <b>Paratypes examined:</b> BOLIVIA. Dept. Cochabamba, Prov. Quillacollo: East Cordillera, area of Inkarraya-Sipesipe, dry Inter-Andean Valleys, 3146 m elev., 17°29’25”S, 66°22’09”W, rocky and shrubby slope, sunny place, E exposure, 17 December 2004, K. Wilk 3177, 3181, 3198, 3199, 3206, 3207, 3250, 3255, 3211, 3263 (KRAM, LPB and B); 2846 m elev., 17º28’39”S 66º21’43”W, 17 December 2004, A. Flakus 4933 (KRAM, LPB).</p> <p> <b>Comparative material seen:</b> <i>“ Caloplaca ” brysonimae</i>: BRAZIL. Matto Grosso, Serra da Chapada, pr. S„o Jeronymo, 3 June 1894, G. A:n, Malme s. n. (S-L2644, holotype). PARAGUAY. ad arborem solitariam, in coni apricot, 2 September 1892, G. A:n, Malme 1491 ×× and 1491 (S-L50600, S-L50601, syntypes). <i>“ Caloplaca ” trabicola</i>: URUGUAY. Florida, 22 January 1949, H. S. Osorio 1752 (F). <i>Tayloriellina erythrosticta</i>: AUSTRALIA. Western Australia, “ Dryandra Forest ”, a few km NW of Narrogin, 17 August 1994, K. & A. Kalb s. n. (Obermayer, Lichenoth. Graec. 26, B). <i>Tayloriellina microphyllina</i>: Wetmore, Telosch. Exsicc. 58–63 (KRAM). Wetmore, Lich. Exsicc. 180 (KRAM).</p>Published as part of <i>Wilk, Karina, 2023, New species of Tayloriellina (lichenized Ascomycota, Teloschistaceae) from Bolivia, pp. 183-188 in Phytotaxa 616 (2)</i> on pages 184-186, DOI: 10.11646/phytotaxa.616.2.8, <a href="http://zenodo.org/record/8389654">http://zenodo.org/record/8389654</a>
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
Hays, R. B.: The Conversion of the Imagination. Paul as Interpreter of Israel's Scripture
No full textHays, R. B.: The Conversion of the Imagination. Paul as Interpreter of Israel's Scripture
No full textWilk, Amy Jo, b. 1970 (FA 805)
No full textFinding aid only for Folklife Archive Project 805. This collection, “Voices from the Homestead,” contains digital interviews with various individuals, primarily in Metcalfe County in south central Kentucky, who participated in the homestead movement during the 1970s. Other counties included in the project are Green, Cumberland, Warren, and Fayette. The movement is characterized by the leaving of individuals from urban settings to settle into a more rural atmosphere. All interviews were conducted by Amy Wilk. All interviews are in digital format
Fuß, B.: "Dies ist die Zeit, von der geschrieben ist..." Die expliziten Zitate aus dem Buch Hosea in den Handschriften von Qumran und im Neuen Testament
No full textFuß, B.: "Dies ist die Zeit, von der geschrieben ist..." Die expliziten Zitate aus dem Buch Hosea in den Handschriften von Qumran und im Neuen Testament
No full text- …
