7,033 research outputs found
Dacus (Leptoxyda) fuscovittatus Graham
No full textDacus (Leptoxyda) fuscovittatus Graham Dacus fuscovittatus Graham, 1910: 169 Other synonyms: White (2006: 108) Material. IVORY COAST: 1 male, Azaguie, 50km N. Abidjan, 2.xi. 2005, cue lure (trap No. D 2), Hala N'Klo (MRAC) Remarks. This specimen differs from those seen previously in having a slight but distinct separation of the xanthines on the anatergite and katatergite. This record also confirms that the males are attracted to cue lure.Published as part of White, Ian M. & Goodger, Kim F. M., 2009, African Dacus (Diptera: Tephritidae); New Species and Data, with Particular Reference to the Tel Aviv University Collection, pp. 1-49 in Zootaxa 2127 on pages 20-22, DOI: 10.5281/zenodo.27492
Still room for improvement? The educational experiences of looked after children in Scotland
No full textIn this chapter Kirstie Maclean and Graham Connelly present an analysis of joined-up thinking in Scotland from both social services and education perspectives
Tectonics and metallogeny of mainland Southeast Asia - a review and contribution
No full textAbstract not availableKhin Zaw, Sebastien Meffre, Chun-Kit Lai, Clive Burrett, M. Santosh, Ian Graham, Takayuki Manaka, Abhisit Salam, Teera Kamvong, Paul Cromi
Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre
No full textWilliams, David M., Spaulding, Sarah A., Bishop, Ian (2021): Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre. Phytotaxa 498 (1): 44-50, DOI: 10.11646/phytotaxa.498.1.5, URL: http://dx.doi.org/10.11646/phytotaxa.498.1.
Dual VP Classes
No full textWe consider the complexity class ACC1 and related families of arithmetic circuits. We prove a variety of collapse results, showing several settings in which no loss of computational power results if fan-in of gates is severely restricted, as well as presenting a natural class of arithmetic circuits in which no expressive power is lost by severely restricting the algebraic degree of the circuits. We draw attention to the strong connections that exist between ACC1 and VP, via connections to the classes CC1[m] for various m. These results tend to support a conjecture regarding the computational power of the complexity class VP over finite algebras, and they also highlight the significance of a class of arithmetic circuits that is in some sense dual to VP. In particular, these dual-VP classes provide new characterizations of ACC1 and TC1 in terms of circuits of semiunbounded fan-in. As a corollary, we show that ACCi = CCi for all i 1.The earlier conference paper version of this article is available from the publisher at http://link.springer.com/book/10.1007%2F978-3-662-48054-0 and also from the Rutgers institutional repository: http://dx.doi.org/doi:10.7282/T3KK9DN4.Peer reviewe
Barbatia diphaeonotus Oliver and Holmes 2004
No full textBarbatia diphaeonotus Oliver and Holmes, 2004 Habitat. In crevices in coral rubble, sublittoral. Distribution. Various localities on the north coast. Remarks. See Oliver and Holmes (2004). Range. Mascarenes only [R/M?]. Figured specimen. 6.55 mm, NMW.Z.2001.061.00006.Published as part of Oliver, P. Graham, Holmes, Anna, Killeen, Ian, Light, Janice & Wood, Harriet, 2004, Annotated checklist of the marine Bivalvia of Rodrigues, pp. 3229-3272 in Journal of Natural History 38 (23) on page 3233, DOI: 10.1080/00222930410001695097, http://zenodo.org/record/525192
The journals of Maria Graham (1785-1842)
No full textMaria Graham is known as a travel writer, but she also translated works from French and German into English, wrote on history, painting, stories for children, and kept personal journals. My thesis centres on her travel journals and memoirs, published and unpublished. Graham is one of the first female travel writers to acquire fame as a writer shortly after publication, or to provoke controversy; in the cases of Brazil and Chile she actually is the first woman to write about those emerging states. She is outstanding as well for the authority of her narrative voice, her disregard of restrictions imposed on women’s text during her time, her complex approach to gender issues and for the changes experienced by her narrating persona. She begins by constructing a well informed but detached observer who reports her visit to India and the first visit to Brazil in a cold and distant voice, but who later allows another voice to filter through her text, an event that turns the narrator into a mere shadow in parts of the journal on Chile. It is in this journal that Graham begins to build up a contradictory persona who can be superior, ironic, and scathing when describing other women, but who can portray herself as a helpless heroine in a traditional romance when her script so demands it. In the second visit to Brazil this complex narrator becomes warmly eulogising of the country and its ruler, but this attitude does not last. The position is reversed in the third journal, which has elements of a spy thriller at times. The last chapter concerns the journals written in and about Europe regardless of chronology; they illustrate one of the main postulates of the thesis: that Graham evolved as narrator from detached observer to heroine up to the journals written at the end of her life, which become explorations into the narrator’s inner self
Structure and petrology of newly discovered volcanic centers in the northern Kermadec–southern Tofua arc, South Pacific Ocean
No full textThe NZAPLUME III expedition of September–October 2004 to the northern Kermadec–southern Tofua (NKST) arc, between 28°52?S and 25°07?S, resulted in the discovery of at least seven new submarine volcanic centers and a substantial caldera complex adjacent to the previously known Monowai Seamount. The volcanic centers form a sublinear chain that coincides with the Kermadec Ridge crest in the south (Hinetapeka) and diverges ?45 km westward of the ridge crest in the north (“V”) just to the south of where the Louisville Ridge intersects with the arc. All of the centers contain calderas or caldera-like structures, as well as multiple cones, domes, fissure ridges, and vent fields. All show signs of recent eruptive and current hydrothermal activity. There are strong structural controls on edifice location, with cones and fissure ridges typically associated with faulting parallel to the regional ?12° strike of the arc front. Several of the calderas are ellipsoidal, orientated northwest–southeast in the general direction of least compressive stress. Sampled volcanic rocks, representing the most recently erupted lavas, are all low-K tholeiites. Two of the centers, Gamble and Rakahore, yielded only high-silica dacite to rhyolite (69–74 wt% silica), whereas two others, Monowai and “V,” yielded only basalt to andesite (48–63 wt% silica). Mineral assemblages are plagioclase-pyroxene dominated, with accessory Fe-Ti oxides, apatite, olivine, and quartz/tridymite/cristobalite, typical of dry volcanic arc systems. Hornblende occurs only in a felsitic rhyolite from Hinepuia volcanic center, and zircon is absent. Glass contents range to 57% in basalts–andesites (mean 20%), and 97% in andesites–rhyolites (mean 59%) and other quench textures, including swallow-tailed, plumose, or dendritic crystal forms and crystallites, are common. Most lavas are highly vesicular (?63%; mean 28%) and have low volatile contents (mostly <2 wt%) which, together with the occurrence of tridymite or cristobalite, indicates explosive eruption and rapid cooling. Exceptions are rocks from “U” volcanic center, which have low vesicularity and low glass contents across a wide compositional range, indicating effusive eruption. Disequilibrium mineral textures, the frequent occurrence of xenoliths and xenocrysts, and macroscopic evidence for magma mingling indicate that many of the lavas are hybrids, having resided only a short time in upper crustal reservoirs prior to eruption. Silicic magmas are major components of NKST arc volcanism and caldera formation is the dominant eruptive style. The scale of silicic magmatism is in marked contrast to the dominant basaltic–andesitic magmatism in the southern Kermadec arc. With evidence from other arcs, silicic magmatism is now recognized as a major feature of intraoceanic arcs globally. <br/
FIGURE 21 in Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre
No full textFIGURE 21. Packet in BM labelled "[34] Gomphogramma rupestre mihi et […] Höllenthal, Sept. 1847 A. Braun [Kützing] 876".Published as part of Williams, David M., Spaulding, Sarah A. & Bishop, Ian, 2021, Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre, pp. 44-50 in Phytotaxa 498 (1) on page 48, DOI: 10.11646/phytotaxa.498.1.5, http://zenodo.org/record/542418
FIGURE 20 in Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre
No full textFIGURE 20. Packet in BM labelled "[34] Gomphogramma rupestre A. Braun nov. gen. Diatomacearum". Packet annotated in an additional hand at top with Denticula thermalis β [var.] ('rupestris') rupestre.Published as part of Williams, David M., Spaulding, Sarah A. & Bishop, Ian, 2021, Studies on type material from Kützing's diatom collection IV: The basionym, author and type of Tetracyclus rupestre, pp. 44-50 in Phytotaxa 498 (1) on page 48, DOI: 10.11646/phytotaxa.498.1.5, http://zenodo.org/record/542418
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