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Androsace artvinensis sp. nov. (Primulaceae): A new species from northeastern Anatolia, Turkey
No full textSefali, Abdurrahman, Yapar, Yakup (2022): Androsace artvinensis sp. nov. (Primulaceae): A new species from northeastern Anatolia, Turkey. Phytotaxa 552 (3): 171-181, DOI: 10.11646/phytotaxa.552.3.
Pastinaca vanensis (Apiaceae), a new species from Turkey
No full textDemir, Ibrahim, Sefali, Abdurrahman, Yapar, Yakup (2022): Pastinaca vanensis (Apiaceae), a new species from Turkey. Phytotaxa 554 (1): 93-100, DOI: 10.11646/phytotaxa.554.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.554.1.
FIGURE 6 in Ranunculus solhanensis (Ranunculaceae), a new species from eastern Turkey
No full textFIGURE 6. Meature achenes (SEM) A‒B) R. solhanensis C‒D) R. bulbilliferus E‒F) R. munzurensisPublished as part of Sinan, Ali, Behçet, Lütfi & Yapar, Yakup, 2021, Ranunculus solhanensis (Ranunculaceae), a new species from eastern Turkey, pp. 157-164 in Phytotaxa 497 (2) on page 160, DOI: 10.11646/phytotaxa.497.2.8, http://zenodo.org/record/542392
FIGURE 3 in Pastinaca vanensis (Apiaceae), a new species from Turkey
No full textFIGURE 3. Pastinaca zozimoides; A. general habit, B. flowers, C. mericarps. (photos by Ahmet Savran)Published as part of Demir, Ibrahim, Sefali, Abdurrahman & Yapar, Yakup, 2022, Pastinaca vanensis (Apiaceae), a new species from Turkey, pp. 93-100 in Phytotaxa 554 (1) on page 96, DOI: 10.11646/phytotaxa.554.1.8, http://zenodo.org/record/680985
FIGURE 5. P. vanensis A in Pastinaca vanensis (Apiaceae), a new species from Turkey
No full textFIGURE 5. P. vanensis A- dorsal vittae, B- commisural vittae C- cross section of mericarp (a-hairs, b-dorsal vascular bundle, c-dorsal vittae, d-commisural vittae, e-mericarp wing margin) (scale 1 mm)Published as part of Demir, Ibrahim, Sefali, Abdurrahman & Yapar, Yakup, 2022, Pastinaca vanensis (Apiaceae), a new species from Turkey, pp. 93-100 in Phytotaxa 554 (1) on page 98, DOI: 10.11646/phytotaxa.554.1.8, http://zenodo.org/record/680985
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
Ranunculus solhanensis Behcet & A. Sinan 2021, sp. nov.
No full textRanunculus solhanensis Behçet & A.Sinan, sp. nov. (Fig. 1 ‒3). Type:― TURKEY. B8 Bingöl: Solhan, Yaylım Mountain, rocky slopes, 38°80’267”N 40°98’814”E, 1713 m a.s.l., 08 April 2018, A. SİNAN 1781 (holotype: Bingöl Univ. Biology Dept. Herbarium (BIN), isotypes Bingöl Univ. Biology Dept. Herbarium and ANK). Paratype:― TURKEY. B8 Bingöl: Solhan, Yaylım Mountain, rocky slopes, 38°80’267”N 40°98’814”E, 1713 m a.s.l., 19 May 2018, A. SİNAN 2067. Bingöl Univ. Biology Dept. Herbarium (BIN). FIGURE 3. A, C) R. solhanensis B) R. bulbilliferus D) R. munzurensis Diagnose:― Ranunculus solhanensis is closely related to R. bulbilliferus and R. munzurensis. It mainly differs from R. bulbilliferus by sepals 7‒8.5 mm long (versus 4‒6 mm), petal size 10‒14 × 6‒9 mm (versus 6‒8.5 × 3‒4.5. mm) and indumentum of achenes (Fig.6) hairy (versus glabrous). R. solhanensis differs from R. munzurensis with rhizome length 1‒45 mm (versus 10‒14 mm), glabrous stem (versus pilose above, glabrous below) (Fig. 5), dilated at the base of cauline leaves with bulbils (versus bulbil absent), sepal 7‒8.5 mm long (versus 2‒4 mm), petal 10‒14 × 6‒9 mm (versus 7‒9 × 4‒5 mm), achenes 3 × 3‒3.5 mm and hairy (versus 2.5‒3.5× 2.5‒3 mm and glabrous) Description:― Perennial, 6‒22 cm tall, glabrous (excluding achenes); Roots dimorphic, root system of stout, clavate or fusiform tubers, 10‒45 m long and fibrous roots, short stock with silky scales, neck glabrous. Stem unbranched or branched above; branches 1‒3 flowered. Radical leaves with 3.5‒14 cm petioles, shortly vaginate at base; lamina pedately tripartit or trisect, middle segment cuneate, trilobed to 1/5‒1/3, lateral segments bipartite to 3/4‒4/5 lobes oblong or oblong‒ovate, obtuse. Cauline leaves 3‒5; lower ones distinctly petiolate, trisect, middle ones bi‒ or trisect, upper ones linear‒lanceolate sometimes absent. Sepals broadly oblong to ovate, obtuse, 7‒8.5 × 2.5‒3 mm, spreading, greenish‒yellow. Petals yellow, obovate, retuse at apex or not, sometimes shortly claved or not, 10‒14 × 6‒9 mm. Anther 1.3‒1.8 mm and flament 1.3‒2 mm long. Fruiting head orbicular‒ovate, 3‒6 mm diameter. Mature achenes 30‒35, compressed laterally, semiorbicular without tubercles, pilose hairy, 3‒4 × 3‒3.5 mm, with 0.5 mm straigth beak. Phenology: —Flowering in April and fruiting in May Etymology:― Epithet of Ranunculus solhanensis is derived from the name of the Solhan district (Bingöl), where the type specimen was found. Phytogeographic region:—Irano‒Turanian Specimens examined: ― Ranunculus solhanensis :— Turkey. B9 Bingöl: Solhan, Yaylım Mount., rocky slopes, 38°80’267”N 40°98’814”E, 1713 m elevation, 23 April 2018, A. SİNAN 1952. ― Ranunculus bulbilliferus:— Turkey. B9 Van: Erek mountain southeast of Çoravanis village, around Çilehane region, 2000–2200 m elavation, 15 May 2000, L . Behçet 6242; same place, 27 May 2000, L . Behc ̧et 6254 (VANF), B9 Van: Çatak, Bilgi Villlage, South slopes, Rocky areas, 1900 m elavation, 17 May 2003, M . Pınar 1435 (VANF). ― Ranunculus munzurensis:— Turkey B7 Tunceli: Ovacık, Munzur mountain, Karagöl valley, 1300–1500 m elevation, 6 May 1979, Yıldırımlı 1379 (holotype HUB), Turkey B7 Tunceli: Ovacık, between Yoncalı and Ağaçpınar villages, rock crevices, 2015 m elavation, 01 June 2015, M . Armağan 6540 (BIN). Concervation status:― Ranunculus solhanensis is known only from the type locality (Solhan, Bingöl). Its area of occupancy is estimated to be less than 10 km 2, and the number of mature individuals is less than 200. The species must be regarded as Critically Endangered [CR B1 a] (IUCN 2019). Distribution and Ecology:― Ranunculus solhanensis (Fig. 8) grows on nortwest face of rocky slopes at 1700‒ 1800 m in Solhan province (Bingöl), Average rainfall in the area is 698.8 mm. The erosion effect is high due to the rugged and sloping land. R. solhanensis grows together with Ranunculus kochii Ledeb., Fritillaria minuta Boiss. & Noë, F. pinardii Boiss., Colchicum szovitsii Fisch. & C.A.Mey. subsp. szowitsii, Scilla siberica Haw. subsp. armena (Groshh.) Mordak, Rosularia radiciflora (Steud.) Borris. subsp. radiciflora, Rumex acetocella L., Quercus petraea (Matt.) Liebl. subsp. pinnatiloba (K.Koch) Menitsky, Saxifraga sibirica L. in the rocky area.Published as part of Sinan, Ali, Behçet, Lütfi & Yapar, Yakup, 2021, Ranunculus solhanensis (Ranunculaceae), a new species from eastern Turkey, pp. 157-164 in Phytotaxa 497 (2) on pages 158-162, DOI: 10.11646/phytotaxa.497.2.8, http://zenodo.org/record/542392
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
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
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