141,642 research outputs found
Gale, D R, 402114
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/386657Surname: GALE. Given Name(s) or Initials: D R. Military Service Number or Last Known Location: 402114. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 3562.208427
Item: [2016.0049.18950] "Gale, D R, 402114
Synthesis of unsymmetrical tweezer receptor libraries and identification of receptors for Lys-D-Ala-D-Ala in aqueous solution
No full textLibraries of "unsymmetrical" tweezer receptors, featuring a guanidinium head group as a carboxylate binding site and two independently synthesized peptidic arms, have been prepared and screened to identify receptors for the N-Ac-Lys-D-Ala-D-Ala tri-peptide sequence. The binding properties of one such receptor structure, with dye-labeled N-Ac-LyS-D-Ala-D-Ala, were investigated. These studies demonstrated that when attached to the solid-phase, the receptor binds dye-labeled N-Ac-Lys-D-Ala-D-Ala, in buffered aqueous media, with mm binding affinity
Sequence of infilling events in Gale crater, Mars: Results from morphology, stratigraphy, and mineralogy
No full textGale Crater is filled by sedimentary deposits including a mound of layered deposits,
Aeolis Mons. Using orbital data, we mapped the crater infillings and measured their
geometry to determine their origin. The sediment of Aeolis Mons is interpreted to be
primarily air fall material such as dust, volcanic ash, fine-grained impact products, and
possibly snow deposited by settling from the atmosphere, as well as wind-blown sands
cemented in the crater center. Unconformity surfaces between the geological units are
evidence for depositional hiatuses. Crater floor material deposited around Aeolis Mons
and on the crater wall is interpreted to be alluvial and colluvial deposits. Morphologic
evidence suggests that a shallow lake existed after the formation of the lowermost part of
Aeolis Mons (the Small yardangs unit and the mass-wasting deposits). A suite of several
features including patterned ground and possible rock glaciers are suggestive of periglacial
processes with a permafrost environment after the first hundreds of thousands of years
following its formation, dated to ~3.61 Ga, in the Late Noachian/Early Hesperian.
Episodic melting of snow in the crater could have caused the formation of sulfates and
clays in Aeolis Mons, the formation of rock glaciers and the incision of deep canyons and
valleys along its flanks as well as on the crater wall and rim, and the formation of a lake in
the deepest portions of Gale
Eoastropecten Gale 2020, gen. nov.
No full textGenus Eoastropecten Gale, gen. nov. Diagnosis. Astropectinid in which the superomarginals carry a sculpture of evenly-spaced, non-aligned fine rugosities on the raised central portion of the external surface. Inferomarginals embayed for articulation with actinal ossicles, externally with fine spine bases set in irregular rows, oblique to breadth of ossicles. Type species. E. sechuanensis sp. nov. Etymology. Formed from Ancient Greek ἠώς ľ(çṓs), “dawn”ľ and the genus name Astropecten, in reference to the new genus being the earlies known representative of the group. Gender. Masculine. Remarks. Most Jurassic to present day astropectinids have a consistent sculpture and spination of the supero- and inferomarginals; superomarginals bear rounded shallow pits which carry short, granular spines (Figs 1A, 2J), and inferomarginals have an oblique to transverse row of large, horseshoe-shaped or round (Fig. 1B) spine bases to which dagger-like spines are attached (e.g., Hess 1955; Jagt 2000; Gale 2011). In contrast, E. sechuanensis gen. et sp. nov. has evenly-sized, fine rugosities on the supero- and inferomarginals, which are aligned into oblique rows on the inferomarginals (Fig. 2C) and which are likely to have carried spines. A similar, but coarser sculpture of rugosities is seen on superomarginals of the Late Cretaceous “ Lophidiaster ” pygmaeus Spencer, 1913 (e.g., Jagt 2000, pl. 4: figs 1–7), but these are restricted to the abactinal part of the plate. “ Lophidiaster ” Spencer, 1913 is a nomen dubium to which diverse species have been referred, some of which are certainly not astropectinids. Astropectinid superomarginals with a sculpture like that of Eoastropecten gen. nov. are present in the Late Jurassic (Oxfordian; Fig. 2I), but the associated inferomarginals lack the distinctive notch on the actinal margin present in the Triassic genus (Fig. 2C, D). A review and re-description of Mesozoic astropectinid material will be published at a later date.Published as part of Gale, Andrew S., 2020, A new comb-star (Asteroidea, Astropectinidae) from the Upper Triassic (Carnian) of China, pp. 139-144 in Zootaxa 4861 (1) on pages 140-141, DOI: 10.11646/zootaxa.4861.1.10, http://zenodo.org/record/441447
Diotascalpellum Gale 2016, GEN. NOV.
No full textGENUS DIOTASCALPELLUM GEN. NOV. FIGURES 2A, 6U–Y, 11Q–T, 13K–M, 18A–G Type species Scalpellum diota Hoek, 1907. Diagnosis Scalpellines in which there is no specialized contact between the carina and carinolatus, merely a cresentic concavity on the interior of the plate that forms a rim slightly overlapping the upper latus; umbo of carinolatus upright, only slightly incurved, dorsal margin gently convex; inframedian surface of carinolatus well demarcated and slightly inset. Derivation of name In eponymous reference to the type species. Included species Scalpellum rubrum Hoek, 1883, Scalpellum indicum Hoek, 1883, Pollicipes angustatus Geinitz, 1843, Scalpellum gracile Bosquet, 1854, and Scalpellum fossula Darwin, 1851. Remarks Cretaceous and extant species of Diotascalpellum gen. nov. have a very similar carinolatus morphology (e.g. Fig. 18A–G). The prevalence and diversity of species of Diotascalpellum in the Cretaceous supports its basal phylogenetic position. The earliest records are from the upper Albian (D. angustatum; Withers, 1935).Published as part of Gale, Andrew Scott, 2016, Phylogeny of the deep-sea cirripede family Scalpellidae (Crustacea, Thoracica) based on shell capitular plate morphology, pp. 266-304 in Zoological Journal of the Linnean Society 176 (2) on pages 297-298, DOI: 10.1111/zoj.12321, http://zenodo.org/record/535781
Towards the enantioselective total synthesis of luminacin D
No full textA proposed strategy for the enantioselective total synthesis of luminacin D, one of a family of 14 structurally similar compounds extracted from Streptomyces species which have been shown to possess anti-angiogenic properties, has been devised and tested. The luminacins are structurally similar, and for synthetic purposes are composed of an aromatic fragment linked to an aliphatic fragment. The aromatic fragment has been synthesised in 5 steps from resorcinol in 19% overall yield. Acylation of resorcinol and subsequent reduction proceeds smoothly. The bismethoxymethyl protection was carried out in a two-step procedure. Optimal conditions for the hydroxymethylation reaction use 3 equivalents of s-butyl lithium and gave a 6:1 ratio of regioisomers. Protection of the resulting primary alcohol as a silyl ether proceeded smoothly. A trial coupling reaction of the aromatic fragment with 2.0 equivalents of acetaldehyde, 1.1 equivalents of s-butyllithium and tetramethylethylene diamine, provided the expected and desired racemic product in 77% yield. Synthesis of the aldehyde fragment for the Nagao acetate-aldol reaction was carried out smoothly in 6 steps from propionaldehyde and methyl acrylate. Triethylsilyl protection gave 36% overall yield; p-methoxybenzyl protection gave 42% overall yield; an triisopropylsilyl protection gave 60% overall yield. The Nagao acetate aldol produced a single diastereoisomers in 67% yield when using triisopropylsilyl protection. With triethylsilyl protection, the Nagao product was isolated as a single diastereomer in 44% yield. With p-methoxybenzyl protection, the Nagao product was isolated as a mixture of diastereomers in 51% yield. Silyl protection of the Nagao product proceeded smoothly in 95% yield. Transformation to aldehyde for the Evans aldol reaction proceeded smoothly in 82% yield on a large scale.</p
I was scarce the age of sixteen when I first went on the drive
No full textSong of a river driver.Mercer: Peacock, p. 759
The future of (Scottish) education: an international perspective
No full textGale, T. & Parker, S. (2018) The future of (Scottish) education: an international perspective. In T. Bryce, W. Humes, D. Gillies & A. Kennedy (Eds.) Scottish Education [5th edition]. Edinburgh: Edinburgh University Press, pp. 937-949
Eoastropecten sechuanensis Gale 2020, sp. nov.
No full textEoastropecten sechuanensis sp. nov. Figure 2 A–H Diagnosis. As for genus. Type material. The superomarginal figured (Fig. 2A, E) is the holotype (Muschelkalkmuseum, Ingelfingen, Germany, MHI 2183/1), the other figured ossicles are paratypes (MHI 2183/2-6). Additional material. 25 marginal ossicles (MHI). Type locality. Jiancougou, Sechuan Province, China. Type stratum. Maantang Formation (sample C30 of Forel et al. 2019), Carnian (Upper Triassic). Etymology. Named after the Sechuan Province. Description. External surfaces of marginals with well-defined, depressed rim of even width. Sculpture of raised central region consisting of fine, evenly sized rugosities, partly conjoined by narrow, radiating strips of stereom (Fig. 2G). Rugosities non-aligned and evenly spaced on superomarginals, but arranged into irregular, oblique rows on the inferomarginals (Fig. 2C). Interradial superomarginals short, median ossicles wedging slightly towards lateral border (Fig. 2G); distal superomarginals broad, rectangular (Fig. 2A, F, H). In proximal/distal view, external face evenly curved. Inferomarginals (Fig. 2C, D) broad, short, with low profile, strongly convex at abactinolateral margin. Proximal actinal surface embayed for articulation of actinal ossicles. The rectangular abactinal outline of the marginals can be taken as evidence that the interradial arcs were evenly concave.Published as part of Gale, Andrew S., 2020, A new comb-star (Asteroidea, Astropectinidae) from the Upper Triassic (Carnian) of China, pp. 139-144 in Zootaxa 4861 (1) on pages 142-143, DOI: 10.11646/zootaxa.4861.1.10, http://zenodo.org/record/441447
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