305,467 research outputs found
Trimuricea spinosa Samimi-Namin & Ofwegen, 2016, n. sp.
No full text<i>Trimuricea spinosa</i> n. sp. <p>(Figs. 21 b, 26–27)</p> <p> <i>Trimuricea</i> sp. Samimi-Namin & van Ofwegen, 2009b.</p> <p> <b>Material:</b> Holotype, RMNH Coel. 39317, one colony, Persian Gulf, Larak Island, 26° 53ʹ 15″ N, 56° 23′ 36″ E, 14–16 m depth, coll. K. Samimi-Namin, 5 December 2007.</p> <p> <b>Description.</b> The holotype is about 8 cm high and 8.5 cm wide, branched in one plane, and has anastomoses forming a network (Fig. 21 b). The stem is 1.5 cm long and 0.5 cm thick and all branches are 3–4 mm thick. Some branches have lost the tissue and are covered by algae. The calyces are dome shaped, closely set to each other and situated all around the branches. They are up to 0.5 mm high and 1 mm wide.</p> <p>The points have triradiates (Fig. 26 a) along with, hockeystick or boot-shaped sclerites, or spindles that can be curved or sinuous (Fig. 26 b), 0.10–0.40 mm long. The upper ray of the triradiates and upper part of the accessory sclerites is strongly echinulate or tuberculate for up to 0.18 mm. The collaret spindles are 0.20–0.44 mm long (Fig. 26 c); and the middle part of the convex side is slightly more tuberculate than the concave side and both the ends. The concave side is relatively smooth with very few tubercles. There are a few tentacle scales present, up to 0.05 mm long (Fig. 26 d).</p> <p>The calyces have thornscales, 0.15–0.47 mm long, with a warty base, and one or more, smooth or echinulate thorns up to 0.23 mm long (Fig. 27 a).</p> <p>The coenenchyme has spindles, 0.30–0.68 mm long, with simple and complex tubercles (Fig. 27 b) along with a few crosses and irregularly branched forms (Fig. 27 c).</p> <p> <b>Colour.</b> The live colony was white-yellowish, with magenta polyps. Preserved it is brown. All sclerites are colourless (For in situ photo refer to Samimi-Namin & van Ofwegen 2009b).</p> <p> <b>Etymology.</b> The specific epithet is derived from the Latin <i>spinosus</i> (thorny). It refers to the thornscales with several thorns.</p> <p> <b>Remarks.</b> This species mostly resembles <i>T. flava</i> <b>n. sp.</b>, but differs in having colourless sclerites and triradiates with a strongly echinulate upper part. Moreover, the collaret spindles of <i>T</i>. <i>spinosa</i> are far less tuberculate.</p>Published as part of <i>Samimi-Namin, Kaveh & Van Ofwegen, Leen P., 2016, A revision of Trimuricea Gordon, 1926 (Cnidaria: Octocorallia: Plexauridae) with the description of six new species, pp. 1-44 in Zootaxa 4105 (1)</i> on page 35, DOI: 10.11646/zootaxa.4105.1.1, <a href="http://zenodo.org/record/271230">http://zenodo.org/record/271230</a>
Trimuricea omanensis Samimi-Namin & Ofwegen, 2016, n. sp.
No full textTrimuricea omanensis n. sp. (Figs. 13 c, 19 –20, 32a) Material: Holotype, RMNH Coel. 41599, Oman, Strait of Hormuz, Musandam, no palm beach (OM 11 A 7 S 6), 26.37336 ° N 56.535694 ° E, 10–25 m depth, coll. K. Samimi-Namin, 9 May 2011. Description. The holotype is a piece of colony, about 35 cm high and 14 cm wide, that is branched in one plane and has many anastomoses forming a network (Fig. 13 c). The calyces are dome shaped, closely set to each other and situated all around the branches. They are low, only 1–2 mm in height and have a diameter of up to 1 mm. The points have triradiates (Fig. 19 a), along with curved, hockeystick or boot-shaped sclerites, or spindles (Fig. 19 b), 0.15–0.25 mm long. The upper ray of the triradiates and upper part of the spindles is echinulate or smooth for up to 0.12 mm, and slightly blunt. The collaret spindles are 0.20–0.35 mm long (Fig. 19 c); the middle part of the convex side is more tuberculated than the concave side and both the ends. The concave side is relatively smooth in the center with more tuberculation at both ends. These polyp sclerites have few tubercles. A few tentacle scales are present, up to 0.08 mm long (Fig. 19 d). The calyces have thornscales, 0.10–0.25 mm long, with a warty base, and one or more echinulate or smooth thorns up to 0.10 mm long (Figs. 19 e, 20 a). The coenenchyme has simple spindles, 0.10–0.30 mm long, with simple and complex tubercles (Fig. 20 b). Additionally, spindles with one smooth, thorn-like end are also present (Fig. 20 c). Also a few sclerites are present that superficially resemble unilateral spinose spindles. Colour. The live colony was yellow with magenta extended polyps (Fig. 32 a). Preserved colony is brown. All sclerites are colourless. Etymology. The species is named after the country Oman where the holotype was found. Remarks. The species mostly resembles Trimuricea inermis, both species having small coenenchymal spindles and calicular thornscales. But it differs in having some sclerites resembling unilateral spinous spindles, some spindles with one thorny end and branch anastomoses forming a net-like colony shape.Published as part of Samimi-Namin, Kaveh & Van Ofwegen, Leen P., 2016, A revision of Trimuricea Gordon, 1926 (Cnidaria: Octocorallia: Plexauridae) with the description of six new species, pp. 1-44 in Zootaxa 4105 (1) on pages 23-29, DOI: 10.11646/zootaxa.4105.1.1, http://zenodo.org/record/27123
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
Junceella juncea Pallas 1766
No full textJunceella juncea (Pallas, 1766) For references see Grasshoff, 2000: 106. Junceella fragilis; Stiasny, 1940: 136. Not Junceella fragilis Ridley, 1884: 347. FIGURE 33. RMNH Coel. 38785, Trimuricea aff. reticulata (Thomson & Simpson, 1909): a, thornscales; b, spindles. Material: RMNH Coel. 38787, one colony, E of Kish Island, coll. K. Samimi Namin; RMNH Coel. 38788, one colony, Kharku Island, 29 º 20 ' 51.1 " N, 50 º 21 ' 17.7 " E, coll. K. Samimi Namin, 31 march 2007; RMNH Coel. 38789, two colonies, Hengam Island, 26 º 36 ' 41.6 " N, 55 º 50 ' 31.5 " E, coll. K. Samimi Namin; RMNH Coel. 38790, two colonies, Farur Island, coll. S.A. Mohtarami; RMNH Coel. 38791, one colony, Strait of Hormuz, Qeshm Island, has been deposited in the Persian Gulf Biotechnology Research Center, 18 May 2006; RMNH Coel. 38792, several branches, off Dubai, Koninklijke Shell Exploratie en produktie laboratorium, station T 1260, coll. A.J. Keij, 1966; RMNH Coel. 6453, three microscope slides of the specimen identified as Junceella fragilis by Stiasny. Remarks. The microscope slides RMNH Coel. 6453 of Junceella fragilis showed us Stiasny’s identification was incorrect. Several of our specimens had side branches, the two colonies from Farur Island were even sparsely branched, a phenomenon not mentioned in the literature.Published as part of Namin, Samimi & Ofwegen, Van, 2009, Some shallow water octocorals (Coelenterata: Anthozoa) of the Persian Gulf, pp. 1-52 in Zootaxa 2058 on pages 45-47, DOI: 10.5281/zenodo.18674
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
Trimuricea bicolor Samimi-Namin & Ofwegen, 2016, n. sp.
No full textTrimuricea bicolor n. sp. (Figs. 4 b, 5 –6, 30b) Material: Holotype, RMNH Coel. 39860, Buginesia Prog. UNHAS-NNM 1994 / 1995, Indonesia, SW Sulawesi, Spermonde Archipelago, SW of Kudingareng Keke (= 14 km WNW of Ujungpandang), 5 ° 06ʹ S, 119 ° 17 ʹ E, coral reef; scuba diving, coll. B.W. Hoeksema, 5 September 1994. Description. The holotype is 10 cm high and 11 cm wide, branched in one plane, and a few anastomoses are present (Fig. 4 b). The stem is 1 cm long, 0.5 cm thick and partly devoid of coenenchyme. The branches are only 2–3 mm thick and the terminal twigs up to 4 cm long. The calyces are dome shaped, up to 1 mm high and wide, closely set together and situated all around the branches. The points have triradiates (Fig. 5 a), along with curved, hockeystick or boot-shaped sclerites, or spindles (Fig. 5 b), 0.10–0.20 mm long. The upper ray of the triradiates and upper part of the spindles is slightly echinulate for up to 0.15 mm. The collaret spindles are 0.25–0.30 mm long (Fig. 5 c); the middle part of the convex side is slightly more tuberculate than the concave side and both ends. The concave sides are more tuberculate at both ends than in the center. These polyp sclerites have very few tubercles. A few tentacle scales are present, up to 0.10 mm long. The calyces have thornscales, 0.20–0.40 mm long, with an echinulate thorn that is up to 0.15 mm long, narrow lateral arms and roots that do not branch (Fig. 6 a); with sparse and simple tubercles. The coenenchyme has narrow spindles, 0.25–0.50 mm long, with sparse, simple tubercles (Fig. 6 b). Colour. The live colony was reddish in the middle parts, orange in the periphery, and the polyps were white (Fig. 30 b); the preserved colony is white. All sclerites are colourless. Etymology. The specific epithet is derived from the Latin bicolor (of two colours) in reference to the live colour of the holotype. Remarks. This species mostly resembles Trimuricea inermis (Nutting, 1910), as both have sclerites with only simple tubercles. Trimuricea bicolor n. sp. differs in having longer, slender spindles (up to 0.50 mm long in T. bicolor, to 0.35 mm in T. inermis) and the thornscales have a less complex base. T. omanensis and T. reticulata also have spindles with simple tubercles. T. reticulata has thornscales with much longer, smooth thorn, and more complex base. T. omanensis has shorter spindles and thornscales.Published as part of Samimi-Namin, Kaveh & Van Ofwegen, Leen P., 2016, A revision of Trimuricea Gordon, 1926 (Cnidaria: Octocorallia: Plexauridae) with the description of six new species, pp. 1-44 in Zootaxa 4105 (1) on pages 5-11, DOI: 10.11646/zootaxa.4105.1.1, http://zenodo.org/record/27123
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
Sansibia claereboudti Samimi-Namin, Benayahu & McFadden 2022, sp. nov.
No full textSansibia claereboudti Samimi-Namin, Benayahu & McFadden sp. nov. Figures 1, 5C–D, 6, 7 http://zoobank/ urn:lsid:zoobank.org:act: E8115341-B5FE-40A7-A1D8-3B7D7B1DB628 Material. Oman, Holotype: RMNH Coel. 42915, Oman Sea, Bandar Al-Khiran (23.501662° N, 58.763671° E), 8– 10 m, 2013, coll. K. Samimi-Namin & M. Claereboudt; Paratypes: RMNH Coel. 42916, same details; SMNHTAU_ Co _38229, same details. Description. The holotype has a stoloniferous growth form and encrusts a limestone fragment (Fig. 5 C–D, 6A). Polyps are monomorphic, and their distribution varies from well-spaced to dense clumps. They arise from anastomosing stolons that criss-cross the substrate Fig. (6 A–B). The polyps are flabby and lie horizontally on the colony surface. The polyp body is up to 2 mm long and the tentacles are> 1 mm long. There is a single row of 5–7 plump pinnules along each side of a tentacle. The smaller polyps may have fewer pinnules or even none, probably representing young ones. The stolons are rather thin and delicate, up to 1 mm thick. The sclerites of the holotype are ellipsoid platelets, highly abundant throughout the colony, measuring 0.010 – 0.016 x 0.014 –0.020 mm (Fig. 7A). Some sclerites tend to fracture due to the SEM preparation. They are composed of calcite rods whose tips provide a granular appearance to the sclerite surface (Fig. 7B). Color. The ethanol-preserved samples are cream or light brown. Etymology The species is named after Michel Claereboudt, Sultan Qaboos University, Oman, for his contributions to knowledge of the marine biodiversity of the Middle East. Variation. The morphological features of the paratype colonies (Fig. 6C) resemble the holotype, except in size. Remarks. S. claereboudti sp. nov. is the second confirmed species of this genus. Although Alderslade (2000) included Anthelia boquetei Roxas, 1933, Anthelia formosana Utinomi, 1950, and ? Anthelia lineata Stimpson, 1855 in the genus Sansibia, all three of those species need re-examination prior to a concrete decision on their taxonomic status. The morphology of S. claereboudti sp. nov. differs markedly from that of S. flava whose polyps are not contractile, while those of S. claereboudti sp. nov. can completely contract. S. flava has a spreading membrane, while S. claereboudti sp. nov. has stolons growing over the reef substrate. S. claereboudti sp. nov. features tentacles with a single row of 5–7 pinnules compared to S. flava which has 3–4 rows and up to 25 pinnules in the outermost row. The sclerites of both species are ellipsoid platelets, highly abundant throughout the colony, and those of S. claereboudti sp. nov. are a bit smaller in diameter compared to S. flava (0.008 –0.013 x 0.013 –0.018 and 0.010 –0.016 x 0.014 – 0.020 mm, respectively). S. flava has sclerites with a rather smooth and roundish margin except for some cracks, while S. claereboudti sp. nov. has some sclerites with a waist. Despite these morphological differences between the two congeners, the molecular data suggest a close genetic relationship between S. flava and S. claereboudti sp. nov. Based on the description of the latter two species an updated diagnosis of Sansibia is presented. So far, these two species exhibit restricted, non-overlapping geographic ranges: Oman Sea vs. SW Indian Ocean. Living features. The live colonies are iridescent blue-purple or green due to the light-refraction properties of the sclerites (Fig. 5C, D). In situ photographs show the polyps in various states, from moderately expanded to completely contracted. Expanded polyps are 2–6 mm in width when alive and the tentacles are up to 4 mm long and 2 mm wide. Polyps contract when stimulated physically. Distribution. Oman Sea, Arabian Sea (Fig. 1).Published as part of Benayahu, Yehuda, Ekins, Merrick, Van Ofwegen, Leen P., Samimi-Namin, Kaveh & Mcfadden, Catherine S., 2022, On some encrusting Xeniidae (Octocorallia): Re-examination of the type material of Sansibia flava (May, 1898) and a description of new taxa, pp. 421-444 in Zootaxa 5093 (4) on pages 428-429, DOI: 10.11646/zootaxa.5093.4.3, http://zenodo.org/record/591273
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
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