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Study of mononchids from Iran, with description of Mylonchulus kermaniensis sp. n. (Nematoda: Mononchida)
No full textShokoohi, Ebrahim, Mehrabi-Nasab, Abdolrahman, Mirzaei, Mahdieh, Peneva, Vlada (2013): Study of mononchids from Iran, with description of Mylonchulus kermaniensis sp. n. (Nematoda: Mononchida). Zootaxa 3599 (6): 519-534, DOI: 10.11646/zootaxa.3599.6.
FIGURE 3 in Study of mononchids from Iran, with description of Mylonchulus kermaniensis sp. n. (Nematoda: Mononchida)
No full textFIGURE 3. Mylonchulus kermaniensis sp. n. A, B, C: Buccal cavity. D: Entire female. E: Cardia diagram. F: Female reproductive system. G: Vagina with vulval papillae. H–J: Female tail.Published as part of Shokoohi, Ebrahim, Mehrabi-Nasab, Abdolrahman, Mirzaei, Mahdieh & Peneva, Vlada, 2013, Study of mononchids from Iran, with description of Mylonchulus kermaniensis sp. n. (Nematoda: Mononchida), pp. 519-534 in Zootaxa 3599 (6) on page 525, DOI: 10.11646/zootaxa.3599.6.2, http://zenodo.org/record/22017
Ditylenchus sarvarae sp. n. (Tylenchina: Anguinidae) from Iran
No full textShokoohi, Ebrahim, Iranpour, Fahime, Peneva, Vlada, Elshishka, Milka, Fourie, Hendrika, Swart, Antoinette (2018): Ditylenchus sarvarae sp. n. (Tylenchina: Anguinidae) from Iran. Zootaxa 4399 (2): 197-206, DOI: 10.11646/zootaxa.4399.2.
FIGURE 1 in Ditylenchus sarvarae sp. n. (Tylenchina: Anguinidae) from Iran
No full textFIGURE 1. Ditylenchus sarvarae sp. n. A, G: Anterior end; B: Entire male; C: Entire Female; D, E: Lip region and stylet; F: Female reprodUctive system; H: Lateral Field incisUres; I: Cross section oF midbody showing lateral Field; J: Post Uterine sac; K, L: Female posterior end; M: Male posterior end.Published as part of Shokoohi, Ebrahim, Iranpour, Fahime, Peneva, Vlada, Elshishka, Milka, Fourie, Hendrika & Swart, Antoinette, 2018, Ditylenchus sarvarae sp. n. (Tylenchina: Anguinidae) from Iran, pp. 197-206 in Zootaxa 4399 (2) on page 200, DOI: 10.11646/zootaxa.4399.2.4, http://zenodo.org/record/120658
Xiphinema simile Lamberti, Choleva et Agostinelli 1983
No full textXiphinema simile Lamberti, Choleva et Agostinelli, 1983 (Figs 2B, C, E, G, H, L, M, O, Q-S; 3 D-H; 4 F-K; 5 D-H; 9-11) Measurements. See Tables 2 -4 Description. Females. Body slender, slightly tapering towards both ends; C- to spiral-shaped. Th ickness of the cuticle at postlabial region 1 µm; at dorsal side of the tail cuticle thickness increases gradually from 2 to 3.6 (3-4) µm towards tail end. Lip region expanded, flatly rounded, 4 (4-5) µm high. Amphidial opening 4-5 µm wide, occupying 44-50% of the corresponding body width (n=4), located just below the demarcation line. Odontostyle with moderately developed basal collar, guiding ring not appearing single. Pharyngeal characters presented at Table 2. Genital system with two almost equally developed branches, uteri short (Table 3); vagina 13–16 µm long or 46–56 % of the corresponding body diameter. Sperm cells observed in females from Kalimok and Orlyane populations. Ovaries contain symbiotic bacteria. Rectum 20.1 (18-22) µm long. Tail conoid, dorsally convex, terminus rounded, in some specimens pointed; presence of slight dorsal constriction at the level of hyaline part. Males. Similar to female apart from body more curved at the posterior end and higher lip region (5-5.5 µm). Spicules slightly curved, one adanal pair and 3 ventromedian supplements present, lateral guiding piece 6 µm long Th e spicules of the specimen from Srebarna Reserve were not well developed and the testes were not observed while the specimen from Kalimok-Brashlen locality was apperantly functional with well developed testes filled with sperm. Tail longer than in female, especially in the specimen from Srebarna, conoid, dorsally convex with rounded terminus. Juveniles. Th e scatter diagram based on functional and replacement odontostyle, and body length reveal presence of three juvenile stages (Figs 11A & B). Remarks. According to Barsi and Lamberti (2002) the populations of X. simile found in different localities have shown a broad range of variability in body length with populations with more southern distribution being shorter. This study revealed one population of X. simile from Kamen brayg area with lower mean values for body and tail length, a - and c’ -ratios and higher c -ratio, as compared to other three populations. The comparisons with populations from different localities, showed that this population has similar body length with other Bulgarian (Lamberti et al. 1983, Peneva and Choleva 1992) and the Kenyan populations (Coomans and Heyns 1997), but still nematodes of this population had shorter tail length, higher c -ratios, and smaller c’ -ratios. The other populations studied were within the range of those reported from northern localities of the range (Barsi 1994, Lišková and Brown 1996, Lamberti et al. 1999, Barsi and Lamberti 2002, Barsi and Lamberti 2004, Kumari 2006, Repasi et al. 2008). Measurements of juvenile stages and male specimens are presented for the first time for Bulgarian populations. Th e obtained values were equal or close to those reported by Barsi and Lamberti (2002) and Barsi and De Luca (2008). The frequency distribution graphs of functional and replacement odontostyle lengths represent four groups, corresponding to three juvenile stages and an adult stage and confirm the findings of other authors (Coomans and Heyns 1997, Barsi and Lamberti 2002, Barsi and Lamberti 2004, Kumari 2006) for the developmental pattern of X. simile. Xiphinema simile was found to occur together with X. parasimile (Orlyane locality) and X. pachtaicum (Tulaganov, 1938) Kirjanova, 1951 (Kalimok-Brashlen protected area).Published as part of Lazarova, Stela, De Luca, Francesca & Peneva, Vlada, 2008, On two closely related species of Xiphinema americanum-group: X. simile Lamberti, Choleva & Agostinelli, 1983 and X. parasimile Barsi & Lamberti, 2004 (Longidoridae), with a description of the male of X. parasimile, pp. 29-50 in ZooKeys 3 (3) on pages 41-48, DOI: 10.3897/zookeys.3.26, http://zenodo.org/record/57641
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Mylonchulus hawaiiensis (Cassidy, 1931) Goodey 1951
No full text<i>Mylonchulus</i> cf. <i>hawaiiensis</i> (Cassidy, 1931) Goodey, 1951 <p>(Figs. 1 (A–E) & 2)</p> <p> <b>Material examined</b>. 10 females, in good state of preservation.</p> <p> <b>Measurements</b>. See Table 2.</p> <p> <b>Description.</b> <i>Female:</i> Body almost cylindrical, ventrally curved after fixation. Cuticle smooth under LM. Head region continuous with neck, having six lips bearing 6 + 4 papillae. Amphid openings oval, aperture 3–5 µm wide, located 9–12 µm from anterior end. Six transverse rows of rasp-like denticles on subventral walls located posterior to the dorsal tooth. Buccal cavity large, elongate goblet -shaped, about 1.9–2.1 times as long as wide, with thick, heavily cuticularised vertical walls, 1.4–2 µm diameter. Dorsal wall bearing a sharp, slightly pointed, 6–8 µm long and 2.5–3 µm wide dorsal tooth, directed forward, located in the anterior half of buccal cavity at 56–62% from its base; each two foramina present at the base of buccal cavity lying close to each other, 5–6 µm long. Nerve ring located at 32–35% of neck length, excretory pore at 34–37%, respectively. Cardia conoid, surrounded by intestinal tissue. Reproductive system amphidelphic. Ovaries more or less straight, reflexed and with a single row of oocytes. Oviduct 60–69 µm long, 1.6–1.9 times the corresponding body diameter. Uterus short, 12–17 µm long, 0.3–0.5 the corresponding body diameter. Vagina with parallel wall, less than half of the corresponding body diameter, <i>pars refringens vaginae</i> with two boot-shaped sclerotisations. Vulva not protruding and located near mid body. Advulval papillae not observed. Egg length 1.9–2.3 times the corresponding body diameter. Rectum 0.7–0.8 times the anal body diameter. Tail arcuate, bent ventrad. Caudal glands in tandem, spinneret opening terminal.</p> <p> <i>Male.</i> Not found.</p> <p> <b>Locality</b>. The material has been found with <i>Phoenix dactylifera</i> L. in Jiroft (province of Kerman, Iran), southeastern Iran (N: 28º 36’ 20.17”; E: 057º 43’ 08.87”).</p> <p> <b>Remarks</b>. Mulvey (1961) considered <i>M</i>. <i>hawaiiensis</i> to be a synonym of <i>M</i>. <i>incurvus</i> Cobb, 1917. Andrássy (1958) showed that this species is completely different from <i>M</i>. <i>incurvus</i>. Comparison of the two mentioned species showed that <i>M</i>. <i>hawaiiensis</i> and <i>M. incurvus</i> differ in buccal cavity size, body length and tail length and shape. According to the key by Ahmad and Jairajpuri (2010), <i>M. hawaiiensis</i> resembles <i>M. brassicus</i> Soni & Nama, 1980, however it has more posterior vulva (55–70 <i>vs</i> 54–57) and shorter tail in males (c=35–44 <i>vs</i> c=23). In addition, male of <i>M. hawaiiensis</i> posses 10–12 supplements (<i>vs</i> 6 supplements). Further, these specimens are close to <i>M. lacustris</i> (Cobb <i>in</i> Cobb, 1915) Cobb, 1917 in the key by Andrássy (1992). Data on morphology of populations identified as <i>M. lacustris</i> vary greatly (Jensen & Mulvey, 1968; Jairajpuri, 1970; Andrássy, 1992; De Bruin & Heyns, 1992, Loof, 1999, etc) and it seems that not all of them are conspecific. Compared with the original description and material reported by Jensen & Mulvey, (1968), De Bruin & Heyns (1992) and Loof (1999), Iranian females differ in body length (0.9–1.6 <i>vs</i> 1.5–2.5 mm), buccal capsule size (24– 30 x 11–17 <i>vs</i> 30– 39 x 17–21 µm), tail shape (ventrally bent <i>vs</i> cylindrical) and length (38–49 <i>vs</i> 66–115 µm, c’=1.4–2.0 vs c’=2.0–3.0), number of rows of rasp-like denticles (6 <i>vs</i> 7). Material studied differ also from populations originating from India (Jairajpuri, 1970; Andrássy, 1992) in body length (0.92–1.13 <i>vs</i> 1.1–1.6 and 1.16–1.24 mm, respectively), number of rows of rasp-like denticles (6 <i>vs</i> 7 and 5–6, respectively), buccal capsule size (24–30 <i>vs</i> 23–24 µm in Bombay population), nerve ring position (79–97 <i>vs</i> 110–125 µm from anterior end), and tail shape (more <i>vs</i>; ventrally slightly arcuate).</p> <p> The populations reported as <i>M. hawaiiensis</i> from several localities across its wide range (Asia, Africa, Central and South America) showed high intrapopulation variability. Iranian specimens compared to those studied from India, Costa Rica and Nigeria (Jairajpuri, 1970; Mulvey & Jensen, 1967; Zullini <i>et al</i>., 2002) have a longer tail (38–49 µm <i>vs</i> 23–42 µm). Further, the buccal capsule of the studied population is longer compared to that of material from Nigeria and India (24–31 <i>vs</i> 20–23 and 22–25 μm, respectively) (Mulvey & Jensen, 1967; Jairajpuri, 1970). Finally, the Iranian specimens have shorter necks compared with materials from Argentina and Costa Rica (224–303 <i>vs</i> 279–345 and 352 μm) (Chaves, 1990; Zullini <i>et al</i>., 2002). Morphological comparison with <i>M. hawaiiensis</i> populations reported from Japan (Olia <i>et al</i>., 2009) is not possible because the author did not present any data on the morphology of the five populations studied.</p> <p>This species is reported for the first time from Iran.</p>Published as part of <i>Shokoohi, Ebrahim, Mehrabi-Nasab, Abdolrahman, Mirzaei, Mahdieh & Peneva, Vlada, 2013, Study of mononchids from Iran, with description of Mylonchulus kermaniensis sp. n. (Nematoda: Mononchida), pp. 519-534 in Zootaxa 3599 (6)</i> on pages 520-524, DOI: 10.11646/zootaxa.3599.6.2, <a href="http://zenodo.org/record/220173">http://zenodo.org/record/220173</a>
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