1,720,968 research outputs found
A new Atractides Koch (Acari: Hydrachnidia, Hygrobatidae) species from southwestern Turkey
No full textGülle, Pinar, Gülle, İskender, Boyaci, Yunus Ömer (2015): A new Atractides Koch (Acari: Hydrachnidia, Hygrobatidae) species from southwestern Turkey. Zootaxa 3957 (2): 246-248, DOI: 10.11646/zootaxa.3957.2.1
A new water mite species from a karstic cavern in southwestern Anatolia: Acherontacarus burduricus n. sp. (Acari, Hydrachnidia)
No full textGülle, Pinar, Boyaci, Yunus Ömer, Gülle, İskender (2018): A new water mite species from a karstic cavern in southwestern Anatolia: Acherontacarus burduricus n. sp. (Acari, Hydrachnidia). Zootaxa 4394 (4): 590-593, DOI: 10.11646/zootaxa.4394.4.1
FIGURE 2 in Description of a new species of Hemigrammocapoeta (Teleostei: Cyprinidae) from Lake Işıklı, Turkey
No full textFIGURE 2. Ventral view of head of: a, Hemigrammocapoeta menderesensis, IFC-ESUF 03-1300b, 54 mm SL; b, H. kemali, IFC-ESUF 03-1306, 53 mm SL, Suğla Canal, Seydişehir; c, Hemigrammocapoeta culiciphaga, FFR 02483, 60 mm SL, Ceyhan River; d, Hemigrammocapoeta culiciphaga, FFR 02484, 60 mm SL, Asi River.Published as part of Küçük, Fahrettin, Bayçelebi, Esra, Güçlü, Salim Serkan & Gülle, İskender, 2015, Description of a new species of Hemigrammocapoeta (Teleostei: Cyprinidae) from Lake Işıklı, Turkey, pp. 359-365 in Zootaxa 4052 (3) on page 363, DOI: 10.11646/zootaxa.4052.3.5, http://zenodo.org/record/24452
Atractides reinhardi Gülle, Gülle & Boyaci, 2015, n. sp.
No full textAtractides reinhardi n. sp. Type series. Holotype, female, a pristine spring with dense emergent vegetation (Nasturtium officinale) with sandy and muddy bottom, of 5–10 cm depth; 37 ° 9.44 ' N, 29 ° 45.92 ' E, 1411 m a.s.l., 18.08. 2014, Çavdır, Burdur. Turkey. Leg. İ. Gülle. Paratypes: one female, same data as holotype. Paratypes: two females, spring with rich vegetation dominated by Nasturtium officinale and sandy and muddy bottom, of depth lower than 10 cm, 37 ° 23.07 ' N, 29 ° 39.52 ' E, 1695 m a.s.l., 14.09. 2013, a small spring above Elmalı highland, Eşeler Mountain, Tefenni, Burdur, Turkey. Leg. İ. Gülle. Paratypes: two female, historical İncirhan fountain (from Seljuk period) fed by karstic sources with aquatic bryophytes and water cress, rocky bottom and depth of below 5 cm, 37 ° 28.62 ' N, 30 ° 32.08 ' E, 992 m a.s.l., 20.09. 2014, Bucak, Burdur, Turkey. Leg.İ. Gülle Type material dissected and slide mounted in Hoyer’s fluid, deposited at the Faculty of Science and Arts, Mehmet Akif Ersoy University, Burdur, Turkey. Diagnosis. Integument striated; P– 2 with strongly convex ventral surface, covered by fine denticulation; Vgl– 1 not fused to Vgl– 2; P- 4 sword seta near distoventral hair; S– 1 much longer than S– 2, I–L– 6 slender and curved. Description. Female (holotype, in parentheses variability of the paratypes given as mean, n = 5): Idiosoma L/W 734 (730)/ 602 (600); integument striated. Muscle attachments unsclerotized (Fig. 1 a). Coxal field: L 307 (304), Cx-I+II W 301 (297), Cx-I+II L 192 (190), Cx-I+II mL 102 (100), Cx-III W 433 (430); capitular bay 108 (105). Genital plates (Fig. 1 a) L/W 96 (94)/ 30 (30); gonopore L 120 (118), Ac 1–3 L 36, 35, 34; the distance between gonopore and excretory pore 144. Excretory pore smooth; Vgl– 1 not fused to Vgl– 2. I-L- 5: dL 210 (206), vL 125 (123), dL/vL ratio 1.68 (1.67), HA– HC 64,67, 95, dL/HB ratio, 3.13; S– 1 L 130, L/W ratio 13, S- 1 long and slender, much longer than S– 2, S- 2 L 88, L/W ratio 8, S- 1-2 interspace 47 (46); L ratio S– 1 / 2 1.47. I–L– 6 slender and curved (Fig. 1 b), L 177 (173) HA–HC 22, 22, 23; L I–L– 5 / 6 ratio 1.18 Palp: total L 335 (331), dL: 32 (31)– 80 (78)– 88 (86)– 102 (103)– 33 (33), H: 36 (33)– 63 (61)– 48 (47)– 32 (32)– 13 (12). P– 1–5 L/H ratio: 0.88, 1.26, 1.83, 3.1, 2.5; L ratio P– 2 / 4 0.78 (0.75); P– 2 with strongly convex ventral surface, covered by fine denticulation (Fig. 1 c). Capitulum L/W 132 (130)/ 128 (125) (Fig. 1 d), chelicera 179 (177) (Fig. 1 d). Etymology. The new species is named after Reinhard Gerecke (Tübingen), a respected acarologist who revised the Western Palearctic Atractides species. Remarks. Due to shape of the P– 2 with strongly convex ventral surface, covered by fine denticulation, Atractides reinhardi n. sp. resembles A. denticulatus (Walter, 1947). The latter species belongs to the ‘cisternarum’ group of species and differs in having the muscle attachments, I–L– 5 with S– 1 and S– 2 similar in shape, narrow interspace, sclerotized excretory pore, short male gonopore restricted to the anterior part of the genital field, and P– 4 with sword seta near proximoventral seta (Gerecke 2003).Published as part of Gülle, Pinar, Gülle, İskender & Boyaci, Yunus Ömer, 2015, A new Atractides Koch (Acari: Hydrachnidia, Hygrobatidae) species from southwestern Turkey, pp. 246-248 in Zootaxa 3957 (2) on pages 246-248, DOI: 10.11646/zootaxa.3957.2.11, http://zenodo.org/record/24322
Acherontacarus burduricus Gülle & Boyaci & Gülle 2018, n. sp.
No full textAcherontacarus burduricus n. sp. Studied material. Holotype: Adult male, a small karstic cavern in Aksu River valley in Burdur province near Antalya, Turkey, 0 8.07.2014, 37° 23.173 ′ N, 30° 50.152 ′ E, 380 m a.s.l., leg. İ. Gülle. Paratypes: one male, three females, same data as holotype. The type material is deposited in Eğirdir Fisheries Faculty, Süleyman Demirel University, Isparta, Turkey. Diagnosis. Palp stout, P-2 longer than P- 4 (Fig. 2e). IV-L-5 and IV-L-6 are approximately equal in size. Male IV-L- 5 slightly enlarged to form a groove in basal half and bearing a stout seta in distal part (Fig. 2b). IV-L-4 enlarged, with three pairs of long hairs on the ventral prominence (Fig. 2b). Description. Both sexes. Ten pairs of small platelets, surrounding the central plate, four pairs with setae. Dorsal shield with tubercles at lateral and posterior. Anterior plate with straight posterior margin. Cx-I and Cx-II are fused and morphologically similar. Male. Idiosoma L/W 900/578. Dorsum with a large posterior plate, L/W 635/440, surrounded by 10 pairs of small platelets, four pairs with setae, anterior plate L/W 175/350; with straight posterior margin; three pairs of setae located on the anterior plate and four pairs of setae on the posterior plate (Fig. 1c). Venter: Gonopore between one pair of genital plates flanked by posterolateral platelets and located posterior to the anteromedial and anterolateral platelets and III-Leg coxal plates, genital field L/W 85/105; excretory pore plate L/W 185/340; posterolateral platelets anteriorly concave embracing genital plates, reaching posterior margin of excretory pore plate (Fig. 1d). Palp: Palp stout, P-2 is longer than the other parts of palp, capitulum L 237. Palp (Fig. 2d, e), L and setation (in parentheses): P-1, 31; P-2, 170 (four setae); P-3, 95 (two setae); P-4, 110 (three normal setae and one stout ventral seta), P-5, 33. Leg: Dorsal length and setation (in parentheses) of leg segments: I-L-2, 162; I-L-3, 92; I-L-4, 135; I-L-5, 133,;I-L-6, 132; II-L-2, 190; II-L-3, 98; II-L-4, 154; II-L-5, 148; II-L-6, 144; III-L-2, 320; III-L-3, 125; III-L-4, 165; III-L-5, 150; III-L-6, 245; IV-L-1, 70; IV-L-2, 340; IV-L-3, 140; IV-L-4, 240 (three long setae in ventral side); IV-L-5, 180 (1 stout, 8 setae); IV- L-6, 245 (13 dorsal setae, 8 stout lateral setae, plus 11 distal setae (Fig. 2a,b). Female. Idiosoma L/W 945/600. Dorsum: anterior plate L/W 160/340; posterior plate L/W 680/425 (Fig. 1a). Venter: gonopore between paired genital plates flanked by posterolateral platelets and located posterior to the anteromedial and anterolateral platelets and III-Leg coxal plates, genital field L/W 185/85; posterior part of excretory pore plate narrower than in male, L/W 200/300; posterolateral platelets curved anteriorly around genital plates, not reaching posterior margin of excretory pore plate (Fig. 1b). Capitulum L 300. Palp, L and setation (in parentheses): P-1, 36; P-2, 192 (three setae); P-3, 98; P-4, 109; P-5, 36. Legs without swimming setae; dL: I-L-2, 170; I-L-3, 88; I-L-4, 166; I-L-5, 130; I-L-6, 131; IV-L-2, 345; IV-L-3, 145; IV- L-4, 250; IV-L-5, 177; IV-L-6, 224. Etymology. The species is named after the area of the collecting site, Burdur province, Turkey. Remarks. Acherontacarus burduricus n. sp. is the third Acherontacarus species recorded from Turkey, following A. anatolicus and A. rutilans (Boyacı et al. 2010; Aykut et al. 2016). Together with the species A. dividuus, A. vietsi, A. bicornis, A. tuberculatus, A. nicoleiana, and A. anatolicus, A. burduricus belongs to a species group characterized by the presence of stout setae on the male IV-L-6. Acherontacarus burduricus n. sp. differs from all known Acherontacarus species in the shape of IV-L-5, in its basal half slightly enlarged to form a groove, in the distal half with a stout seta. Acherontacarus anatolicus differs from A. burduricus also in the presence of a ventral extension on P-3 (Boyacı et al. 2010). Acherontacarus cedro and A. rutilans have a relatively shorter P-2, but a longer P-5 (Gerecke & Benfatti 2004). Acherontacarus vietsi can be easily distinguished by the presence of only two thick setae on IV-L-6 and A. bicornis is characterized by a thick seta on the expanded distal half of IV-L-6 (Valdecasas et al. 2005). IV-L-6 is not expanded in A. anatolicus, A. nicoleiana, and A. burduricus. Acherontacarus anatolicus and A. burduricus (8-9 stout setae in IV-L-6) differ from A. nicoleiana with 6-7 stout setae in the same region. In A. dividuus and A. burduricus, IV-L-5 and IV-L-6 are approximately equal in size while in A. nicoleiana, IV-L-5 is longer than IV-L-6 (Gerecke & Benfatti 2004; Valdecasas et al. 2005; Boyacı et al. 2010).Published as part of Gülle, Pinar, Boyaci, Yunus Ömer & Gülle, İskender, 2018, A new water mite species from a karstic cavern in southwestern Anatolia: Acherontacarus burduricus n. sp. (Acari, Hydrachnidia), pp. 590-593 in Zootaxa 4394 (4) on pages 590-593, DOI: 10.11646/zootaxa.4394.4.10, http://zenodo.org/record/119989
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
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
- …
