87,665 research outputs found
Mussidae , Ortmann 1890
No full textFAMILY MUSSIDAE ORTMANN, 1890: 315 <p> <i>Type genus:</i> <i>Mussa</i> Oken, 1815</p>Published as part of <i>Budd, Ann F., Fukami, Hironobu, Smith, Nathan D. & Knowlton, Nancy, 2012, Taxonomic classification of the reef coral family Mussidae (Cnidaria: Anthozoa: Scleractinia), pp. 465-529 in Zoological Journal of the Linnean Society 166 (3)</i> on page 494, DOI: 10.1111/j.1096-3642.2012.00855.x, <a href="http://zenodo.org/record/5409083">http://zenodo.org/record/5409083</a>
Structural versus Behavioral Measures in the Deregulation of Electricity Markets: An Experimental Investigation Guided by Theory and Policy Concerns
No full textWe try to better understand the comparative advantages of structural and behavioral measures of deregulation in electricity markets, an eminent policy issue for which the experimental evidence is scant and problematic. In the present paper we investigate theoretically and experimentally the effects of the introduction of a forward market on competition in electricity markets. We compare this scenario with the best alternative, reducing concentration by adding one more competitor by divestiture. Our work contributes to the literature by introducing more realistic cost configurations, teasing apart number and asset effect, and studying numbers of competitors that reflect better the market concentration in the European electricity industries. Our experimental data suggest that introducing a forward market has a positive effect on the aggregate supply in markets with two or three major competitors, configurations typical for both the newly accessed and the old European Union member states. Introducing a forward market also increases efficiency. Our data furthermore suggest, in contrast to previous findings, that the effects of introducing a forward market is stronger than adding one more competitor both in markets with two, and particularly three, producers. Our data thus suggest that the behavioral measure of introducing a forward market is more effective than the structural measure of adding one more competitor by divestiture. Thus competition authorities should, in line with EU law, focus on the behavioral measure of introducing, or at least facilitating the emergence of, forward markets rather than on the structural measure of lowering market concentration by divestiture.economics experiments; market power; competition; forward markets; EU electricity market
Impact of market deregulation on the competitiveness of commercial milk producers in East Griqualand: a unit cost ratio (UCR) analysis: 1983-2006
No full textThis study investigates the impact of dairy market deregulation on the competitiveness of milk producers who comprise the East Griqualand (EG) study group in KwaZulu-Natal and the Eastern Cape Province of South Africa. The study uses a microeconomic approach, the unit cost ratio (UCR) method of competitiveness analysis, to assess changes in the relative competitiveness of EG milk producers from 1983 – 2006. Findings of previous research indicate that dairy market deregulation in the 1980s and 1990s caused lower real milk producer prices, increased uncertainty and higher exit rates in the South African dairy industry. Results of the UCR analysis suggest that EG milk producers were not competitive based on the net local price received for milk but were competitive when dairy cattle trading income was included. This suggests that dairy cattle trading income played an important role in enhancing the profitability of EG dairy enterprises in the study period. Further UCR analysis revealed that the top one-third of EG milk producers were relatively competitive from 1983 – 2006 due to higher real milk prices and lower unit costs. A panel data study of individual EG milk producers could be used to identify other important factors affecting milk producer competitiveness over time.dairy market deregulation, East Griqualand milk producers, competitiveness, unit cost ratio analysis, Livestock Production/Industries,
Leander paulensis Ortmann 1897
No full textLeander paulensis Ortmann, 1897 Leander paulensis Ortmann, 1897: 192, pl. 1, fig. 14. Material examined. 1 m, 1 f, 13.XI. 2006, Maraú, Ponta do Mutá, MZUESC 771; 1 f, 23.XI. 2007, Prado, Cumuruxatiba Beach, MZUESC 1059; 1 f, 29.VIII. 2007, Caravelas, Caravelas River, Barra de Caravelas, St. 4, MZUESC 1005. See report by Almeida et al. (2006). Distribution. Western Atlantic—Florida, West Indies, and Brazil (Maranhão to São Paulo) (Ramos-Porto 1986). Ecological notes. On drifted algae on sandy bottom (shallow subtidal); associated with an unidentified hydrozoan; also, on rocky bottom. Salinity range: 35–38 psu. Previous records. locality not informed (Ramos-Porto 1986; Ramos-Porto & Coelho 1990); Ilhéus (Almeida et al. 2006, 2007a); Camamu Bay (Almeida et al. 2007 b); Caravelas (Ferreira et al. 2010).Published as part of Almeida, Alexandre O., Boehs, Guisla, Araújo-Silva, Catarina L. & Bezerra, Luis Ernesto A., 2012, Shallow-water caridean shrimps from southern Bahia, Brazil, including the first record of Synalpheus ul (Ríos & Duffy, 2007) (Alpheidae) in the southwestern Atlantic Ocean, pp. 1-35 in Zootaxa 3347 on page 6, DOI: 10.5281/zenodo.21460
Polished by Use. Four Windows on Organizations
No full textContains fulltext :
145658.pdf (Publisher’s version ) (Open Access)Organisaties worden beschouwd als sociale systemen die zichzelf en hun omgeving op een specifieke wijze beschrijven. Deze beschrijvingen hebben ze nodig voor hun bestaan en ontwikkeling. De aard van beschrijvingen, de processen die daaraan ten grondslag liggen en de problemen die daaruit voortvloeien worden door de auteur beschreven, waarbij wordt uitgegaan van begrippen uit de cybernetica en de sociale systeemtheorie. Op basis van de combinatie van deze begrippen ontstaat de mogelijkheid organisaties als een specifiek soort sociaal systeem te karakteriseren. Tevens is er dan de mogelijkheid condities voor het ontstaan en de ontwikkeling van organisaties te benoemen en problemen te behandelen die samenhangen met de eigen aard van het organiseren in organisaties.Katholieke Universiteit Nijmegen, 13 december 1999Promotores : Ortmann, G., Huijgen, F. Co-promotor : Martens, W.P.M.432 p
Athanas dimorphus Ortmann 1894
No full textAthanas dimorphus Ortmann, 1894 (Figure 2 A) Athanas dimorphus Ortmann, 1894: 12, pl. 1, fig. 1. Material examined. Brazil, São Paulo: 4 ♀, 1 juv, CCDB 6029, Ubatuba, Enseada de Ubatuba, coll. F. Mantelatto et al., 09.iv.2013; 1 ♂, 2 ♀ (1 ♀ ov), CCDB 1945, Ubatuba, Enseada do Flamengo, Praia Lamberto/Saco do Codó, on rocks, coll. F. Mantelatto et al., 3.v.2007; 1 ♀, CCDB 5368, Ubatuba, Enseada do Flamengo, Praia Lamberto/ Saco do Codó, coll. F. Mantelatto, 31.iii.2014; 1 ♀ ov, CCDB 5513, Ubatuba, Enseada do Flamengo, Praia Lamberto/Saco do Codó, coll. F. Mantelatto, 31.iii.2014. Distribution. Indo-West Pacific—East Africa, Red Sea, Thailand, Hong Kong, Philippines, Japan, Australia (Western Australia, Northern Territory, Eastern Australia), New Caledonia (Banner & Banner 1973; Chace 1988). Western Atlantic—Venezuela and Brazil (Ceará, Pernambuco and São Paulo) (Pachelle et al. 2011; Almeida et al. 2012b; 2015; Lira & Vera-Caripe 2016). Previous records. Ubatuba (Almeida et al. 2012b). Remarks. Athanas dimorphus is a shrimp of Indo-West Pacific origin, reported for the first time from the coast of São Paulo by Almeida et al. (2012b). Here we report the collection of seven additional individuals, all of them from Ubatuba region.Published as part of Almeida, Alexandre O., Terossi, Mariana, Buranelli, Raquel C., Castilho, Antonio L., Costa, Rogério C., Zara, Fernando J. & Mantelatto, Fernando L., 2018, Checklist of decapods (Crustacea) from the coast of São Paulo State (Brazil) supported by integrative molecular and morphological data: II. Infraorder Caridea: family Alpheidae, pp. 331-358 in Zootaxa 4450 (3) on page 343, DOI: 10.11646/zootaxa.4450.3.2, http://zenodo.org/record/145255
Logik- und Fluidiksteuerungen e. Nachschlagewerk f. Begriffe, Bildzeichen, Geräte u. Schaltungen d. Steuerungstechnik allgemein sowie d. Fluidiktechnik u. ihrer Randgebiete; mit über 1000 Begriffserl.
No full textChirostylidae Ortmann 1892
No full textChirostylidae Ortmann, 1892 <p>(Fig. 2C–F, I–L)</p> <p>Diptycinés A. Milne-Edwards & Bouvier, 1894: 296, 312; 1897: 116 [vernacular name, unavailable].</p> <p>Diptyciens A. Milne-Edwards & Bouvier, 1894: 299. — Bouvier, 1896: 312 [vernacular name, unavailable].</p> <p>Diptycinae Bouvier, 1896: 312. — A. Milne-Edwards & Bouvier, 1899: 71, 87; 1900: 350.</p> <p>Chirostylidae Ortmann, 1892: 244.</p> <p>Uroptychidae Alcock, 1901: 236, 278.</p> <p> <b>Diagnosis.</b> Carapace surface smooth, tuberculate or spinose but without transverse striae, posterolateral margin not distinctly defined or greatly inflated; rostrum variously shaped; supraocular spines absent. Anterolateral margin of abdominal somite 2 without prominent, anterolaterally directed spine. Sternite 3 not strongly produced anteriorly. Eyes well developed. Basal antennular article with distolateral spines. Antennal peduncle consisting of 5 articles; acicle present or absent. Mandibular cutting edge calcified, strongly serrated along its length. Maxilliped 1 without epipod; exopod flagellum present or absent, not annulated. Maxilliped 3 to pereopod 4 each with 2 arthrobranchs (well-developed or vestigial on maxilliped 3). Pereopod 5 with 1 arthrobranch only. Pereopods 2–4 with pleurobranch. Male pleopods 1 and 2 present. Male pleopods 3–5 vestigial or absent.</p> <p> <b>Type genus.</b> <i>Chirostylus</i> Ortmann, 1892, by original designation.</p> <p> <b>Composition.</b> <i>Chirostylus</i> Ortmann, 1892, <i>Gastroptychus</i> Caullery, 1896, <i>Hapaloptyx</i> Stebbing, 1920, <i>Uroptychodes</i> Baba, 2004, <i>Uroptychus</i> Henderson, 1888.</p> <p> <b>Remarks.</b> Pleopods 3–5 are absent in most male chirostylids, but are vestigial in some species of <i>Gastroptychus</i> (e.g., <i>G. rogeri</i> Baba, 2000, and <i>G. investigatoris</i> (Alcock & Anderson, 1899), K. Baba, pers. com.; AM P53251, <i>G. rogeri</i>).</p>Published as part of <i>Schnabel, Kareen E. & Ahyong, Shane T., 2010, A new classification of the Chirostyloidea (Crustacea: Decapoda: Anomura), pp. 56-64 in Zootaxa 2687 (1)</i> on page 58, DOI: 10.11646/zootaxa.2687.1.4, <a href="http://zenodo.org/record/5301281">http://zenodo.org/record/5301281</a>
FIG. 1 in Identities of Pagurus japonicus (Stimpson, 1858), P. similis (Ortmann, 1892) and P. barbatus (Ortmann, 1892), with description of a new species (Crustacea, Decapoda, Anomura, Paguridae)
No full textFIG. 1. — Pagurus japonicus (Stimpson, 1858), sl 15.3 mm, from Kominato, Boso Peninsula (CBM-ZC 2703); A, shield and cephalic appendages, dorsal (setae omitted from left); B, left ocular acicle, dorsal; C, capsulate tubercle on dorsal surface of palm of right cheliped, lateral (setae broken); D, same, dorsal (setae omitted); E, left fourth pereopod, lateral; F, same, distal part of dactylus, lateral; G, anterior lobe of sixth thoracic sternite, ventral; H, coxae of fifth pereopod and eighth thoracic sternite, ventral; I, telson, dorsal. Scale bars: A, 5 mm; B, 1 mm; C, D, F, 0.5 mm; E, G-I, 2 mm.Published as part of <i>Komai, Tomoyuki, 2003, Identities of Pagurus japonicus (Stimpson, 1858), P. similis (Ortmann, 1892) and P. barbatus (Ortmann, 1892), with description of a new species (Crustacea, Decapoda, Anomura, Paguridae), pp. 377-411 in Zoosystema 25 (3)</i> on page 381, DOI: <a href="http://zenodo.org/record/10113769">10.5281/zenodo.10113769</a>
Schizoporella japonica Ortmann 1890
No full textSchizoporella japonica Ortmann, 1890 Fig. 14 A–F Schizoporella unicornsis var. japonica Ortmann, 1890: 49, pl. 3, fig. 35. Schizoporella japonica – Ryland et al. 2014: 485, figs 2–5. Material MALAYSIA: MSL BRY019b, BRY024, Kuah jetty, Langkawi, encrusting bivalves fouling a rope hanging from the jetty. Description Colony encrusting, multiserial, unilamellar, growing edge locally developing giant buds (Fig. 14B); vivid yellow-orange when alive (Fig. 14A). Autozooids small, 0.48–0.60 mm long by 0.18–0.38 mm wide, elongate, on average 1.9 × longer than wide; frontal shield convex, with marginal areolar pores and abundant deep pseudopores, suboral umbo; orifice about as long as wide, 0.11–0.14 mm in both dimensions, sinus wide, shallow, broad condyles occupying outer two-thirds of hingeline on either side of sinus (Fig. 14D); ovicell prominent, porous (Fig. 14 E–F). Adventitious avicularia (Fig. 14D) present in about one-third of autozooids, typically lacking in narrower examples, never more than one per zooid, proximal end level with proximal edge of orifice, directed distolaterally, about 0.11 mm long by 0.06 mm wide; rostrum a high triangle with slightly concave edges and rounded distal end somewhat raised; cross-bar straight; opesia semicircular. Remarks Ryland et al. (2014) comprehensively redescribed Schizoporella japonica and provided information on its geographical distribution, focusing especially on its recent introduction into western Europe. Living colonies of S. japonica from Langkawi have a vibrant yellow-orange colour, similar to the specimen from Friday Harbor, Washington depicted by Ryland et al. (2014: fig. 2d), although some of the colonies described by these authors are redder in colour. The Langkawi material has rather smaller autozooids than is usual for this species, which may reflect the warm ambient seawater temperature, and the avicularia tend to be slightly more laterally orientated.Published as part of Taylor, Paul D. & Tan, Shau-Hwai Aileen, 2015, Cheilostome Bryozoa from Penang and Langkawi, Malaysia, pp. 1-34 in European Journal of Taxonomy 149 on pages 25-26, DOI: 10.5852/ejt.2015.149, http://zenodo.org/record/378755
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