1,841 research outputs found
A Roundtable for Victoria M. Grieve, Little Cold Warriors: American Childhood in the 1950s
No full textDr. Thomas Field introduces a roundtable discussion of Victoria M. Grieve\u27s Little Cold Warriors: American Childhood in the 1950s, providing a synopsis of reviewer critiques before the reviewers expand on their views and the author responds
Madeleine Colani's Megaliths of Upper Laos
No full textA translation of the original French version of Madeleine Colani's Megaliths of Upper Laos, translated by James Grieve (ANU) including updated information on the Plain of Jars
Book Review:Impact structures in Canada, by Richard A. F. Grieve.
No full textBook Review:Impact structures in Canada, by Richard A. F. Grieve
Disc machine testing to assess the life of surface-damaged railway track
No full textWheel-rail contacts operate in an arduous and contaminated environment. Railway track running surfaces can become damaged either prior to or during operation. This work is aimed at understanding how that surface damage can affect the life of railway track. Pre-damaged surfaces and track damaged by the entrainment of solid contaminants are considered under both oil and water lubrication. A series of small-scale laboratory experiments has been carried out on a twin-disc rolling-sliding test machine. The test discs are artificially indented and run under typical wheel-rail contact conditions. The experimental results revealed that artificial dents only reduce the fatigue life of the contact under oil, but not water lubrication. With oil lubrication the fatigue failure initiates close to the location of the surface defect. However, with water as the lubricant the whole of the surface undergoes cracking with the defect having no preferential effect. Studies have also been carried out to investigate the damage caused by the entrainment of solid particles into the wheel-rail contact. This kind of damage can accelerate surface fatigue and also lead to excessive wear. An attempt has been made to quantify the wear process and develop a simple empirical model
Christopher Murray Grieve alias Hugh MacDiarmid (1892-1978)
No full textThis article presents an overview on the fabulous career of the protagonist of the Scottish literary Renaissance through some of his masterpieces. Here the author analyzes the way in which Murray Grieve made up for himself the famous pseudonym of Hugh MacDiarmid and how he used it all through the various decades until his death in 1978. Various works are here discussed, such as: some of his first Scots poems, the long poem On a Raised Beach, etc
FIGURE 1 in Exochaenium natalense (Gentianaceae), a reinstated taxon endemic to KwaZulu-Natal, South Africa
No full textFIGURE 1. Comparison of Exochaenium grande and E. natalense. (A–E) E. natalense from K.W.Grieve 3078 (NH): A. Aerial parts; B. Flower showing calyx with conspicuously undulated wings; C. Open flower, showing the relative position of the anthers and pistil; D. Anther with apical and basal glands; E. Leaf; F. E. grande open flower showing the relative position of the anthers and pistil in distylous flowers (short and long style). Scale bar = 10 mm. Artist: Kate Grieve.Published as part of <i>Kissling, Jonathan, Grieve, Kate W., Grieve, Graham & Bytebier, Benny, 2023, Exochaenium natalense (Gentianaceae), a reinstated taxon endemic to KwaZulu-Natal, South Africa, pp. 117-122 in Phytotaxa 619 (1)</i> on page 119, DOI: 10.11646/phytotaxa.619.1.8, <a href="http://zenodo.org/record/8425836">http://zenodo.org/record/8425836</a>
Exochaenium natalense Kissling & K. W. Grieve
No full text<i>Exochaenium natalense</i> (Schinz) Kissling & K.W.Grieve, <i> <i>combinatio nova</i>.</i> <p> <i>Basionym</i>:— <i>Belmontia natalensis</i> Schinz (1894: 220).</p> <p> <i>Homotypic synonyms</i>:— <i>Exochaenium grande</i> var. <i>homostylum</i> Hill (1908: 338).</p> <p> <i>Sebaea natalensis</i> (Schinz) Schinz (1906:782), <i>nom. illeg.</i> [non <i>Sebaea natalensis</i> Schinz (1896:442)].</p> <p> Type:— SOUTHAFRICA. KwaZulu-Natal, Clairmont, 5 Aug. 1893, <i>Schlechter 3060</i> (Lectotype Z [Z000070706]!, <i>hic designatus</i>; isolectotype Z [Z000070705]!).</p> <p> <b>Nomenclatural notes:</b> —There are two sheets of <i>Schlechter 3060</i> at Herb. Z. One [Z000070706] contains five stems each with a single flower, whereas the other [Z000070705] contains a single stem from which the flower is removed and stored in a pocket. These two specimens should be considered as duplicates and thus a lectotype needed to be chosen, in accordance with the <i>International Code of Nomenclature for algae, fungi and plants</i> Arts 8.2 and 8.3 (Turland <i>et al.</i> 2018). The first author (JK) has studied the type material in detail and confirmed that both sheets represent the same taxon. The sheet with five stems contains more and better material and is consequently chosen here as lectotype.</p> <p> When Schinz transferred <i>Belmontia natalensis</i> to the genus <i>Sebaea</i> in 1906, he clearly forgot that he had already described a different and currently still accepted species, as <i>Sebaea natalensis</i> in 1896. Thus, should <i>Exochaenium natalense</i> ever be transferred to the genus <i>Sebaea</i>, it will need a new name.</p> <p> <b>Diagnosis:</b> —This species is morphologically closely allied to <i>Exochaenium grande</i> (E.Mey.) Griseb., but is markedly different in terms of its much smaller flower size of <i>c.</i> 0.8–1.5 cm diameter (<i>vs c.</i> 3.0– 4.5 cm for <i>E. grande</i>) and the arrangement of the reproductive organs, with anthers positioned at the same level as the stigma (<i>vs</i> distyly in <i>E. grande</i>), possibly indicating differences in pollination strategies. The species can also be differentiated on the basis of their ecological preferences.</p> <p> <b>Description:</b> —Annual, erect herbs, 15–20 cm tall. <i>Stems</i> simple, rarely branched from base, sometimes branched above, 4-ridged. <i>Leaves</i> sessile, opposite, 7–20 mm long, 3–6 mm broad, lanceolate, acute at apex, base narrowed, margin entire, basal leaves sometimes reduced. <i>Inflorescence</i> corymbose, lax, single to several flowered. <i>Calyx</i> of 4 or 5 free sepals, each 7–16 mm long, 3–5 mm broad, ovate-lanceolate, acuminate, with conspicuous keel-wing, 2–3 mm broad at semi-cordate base, hyaline, presence of colleters on inside base. <i>Corolla</i> pure white; tube 9.0– 14.5 mm long, infundibuliform; corolla lobes suborbicular, 5.0– 8.5 mm long, 4–5 mm broad, margins entire, apex acuminate. <i>Stamens</i> inserted ± half way up tube, at same level as stigma. <i>Filaments</i> 6.0– 9.5 mm long; <i>anthers</i>, <i>c.</i> 1–2 mm long, each with apical and 2 tiny stipitate basal glands. <i>Ovary</i> ovoid, <i>c.</i> 2–6 × 2–4 mm, bilocular, placentation axile, ovules numerous. <i>Style</i> and <i>stigma</i> 4–18 mm long, filiform. <i>Stigma</i> slightly clavate, papillose. <i>Fruit</i> and <i>seed</i> not seen.</p> <p> <b>Iconography:</b> — Hill (1908: 317, plate G). See also drawing accompanying plate K000195293 (<i>J.M.Wood 541</i>) from Royal Botanic Gardens Kew.</p> <p> <b>Distribution:</b> —This species occurs along a section of the eastern coastal region of South Africa. It is found mainly in the Port Edward district, on the border between the Eastern Cape and southern KwaZulu-Natal, South Africa. The range extends northwards to Port Shepstone (Oribi Flats) and uMzinto districts in KwaZulu-Natal. There are historical records from the greater eThekwini [Durban] area and Zululand, localities that have been transformed by urban development and agriculture. The species has been observed by the second and third authors along the eastern seaboard of the Eastern Cape, known as the Pondoland coast, between Port St Johns and the Umtamvuna River, although no specimens have been collected from this region as yet.</p> <p> <b>Ecology and habitat:</b> — The species inhabits the Indian Ocean Coastal Belt biome, in particular Pondoland-Ugu Coastal Sourveld (CB4) and KwaZulu-Natal Coastal Belt Sandstone Sourveld (CB3) (Mucina & Rutherford 2006). These vegetation types are characterised by undulating coastal plains, species-rich grasslands, rocky outcrops and forested gullies, at elevations up to 600 m. The area receives mostly summer rainfall with some rain in winter.</p> <p> <i>Exochaenium natalense</i> and <i>E. grande</i> occur sympatrically although the latter has a much wider distribution. The two species also have different ecological preferences—whereas <i>E. grande</i> is usually found in well drained grassland, <i>E. natalense</i> is always found in seasonally wet to moist grassland (sometimes even in water).</p> <p> <b>Etymology:</b> —This taxon was named by Schinz (1894), after its geographical origin, previously named Natal and now KwaZulu-Natal, in South Africa.</p> <p> <b>Conservation status:</b> —This species has a restricted distribution and is endemic to the southwestern region of KwaZulu-Natal. A small part of the region is statutorily conserved and the rest is transformed by agriculture and subsistence farming, infrastructure development and urban sprawl and for these reasons, the area is regarded as being of conservation concern (Mucina & Rutherford 2006). <i>Exochaenium natalense</i> is a habitat specialist and is fairly uncommon within this region of <i>c.</i> 1230 km 2. Because the extent of occurrence of the species is estimated to be less than 5000 km 2, based on historical collections and the authors’ observations, and because populations seem to be fragmented, and population decline is projected due to habitat loss and degradation, it is suggested that this species should be regarded as Endangered: B1ab(i–iv).</p> <p> <b>Representative specimens examined:</b> — SOUTH AFRICA. KwaZulu-Natal: Eisdumbeni, 1800 ft., <i>J.M.Wood 133</i> (K [K000195293], NH [NH0004093 -0]); [Durban] “ Bei Port Natal ”, 28 Mar. 1832, <i>J.F.Drège s.n.</i> (P [P00560847]); [Durban] Fields Hill, 358m,n.d., <i>H.Evans 190</i> (NH); Inanda,[Durban district],[252m], <i>J.M.Wood 541</i> (K [K000195293], NH [NH0002056-0]); Izinqoleni district: Kwazamane, 394 m, 21 Mar. 2019, <i>K.W.Grieve 2841</i> (PRE); Margate, [114 m], 4 Feb. 1987, <i>H.B.Nicholson 2561</i> (PCE [PCE0005454]); Mvoti kloof, Canema estate, 7 Oaks, [2930BA], 20 Jan. 1990, <i>A.Abbott 4999</i> (PCE [PCE0005472], NH); Oribi, [432 m], Apr.1937, <i>A.McClean 442</i> (NH); Paddock district, Oribi Flats, Whistling Pine Farm, 482 m, 25 Jan. 2017, <i>K.W.Grieve 2295</i> (PCE [PCE0014180]); Port Edward, Red Desert Nature Reserve coastal section, 10 m, 8 Dec. 2015, <i>K.W.Grieve 1886</i> (NU [NU0088250]); Port Edward, Red Desert Nature Reserve coastal section, 17 m, 23 Feb. 2017, <i>K.W.Grieve 2322</i> (PCE [PCE0014181]); Port Edward, Red Desert Nature Reserve coastal section, 24 m, 6 Jan. 2022, <i>K.W.Grieve 3078</i> (NH); Port Edward, Izingolweni roadside, [3130AA], 2 Jan. 1965, <i>O.M.Hilliard 3038</i> (NU [NU0092021]); Port Edward, Umtamvuna Nature Reserve, [350 m], 14 Apr. 1982, <i>H.B.Nicholson 2248</i> (PCE [PCE0005455]); Port Edward, Umtamvuna Nature Reserve, Clearwater, [350 m], 3 Mar. 1983, <i>A.Abbott 880</i> (PCE [PCE0005451]); Port Edward, Umtamvuna Nature Reserve, [350 m], 13 Mar. 1984, <i>A.Abbott 1827</i> (NH, PCE [PCE0005450]); Port Edward, Umtamvuna Nature Reserve, Office [Beacon Hill], [350 m], 12 Feb. 1986, <i>A.Abbott 2982a</i> (NH, PCE [PCE0005449]); Port Edward, Umtamvuna Nature Reserve, [350 m], 31 Mar. 1995, <i>A.Abbott 6740</i> (NH); Port Edward, Umtamvuna Nature Reserve, Beacon Hill, [350 m], 2 Mar. 1997, <i>C.J.Potgieter s.n.</i> (NU [NU0092023]); Port Edward, Umtamvuna Nature Reserve, western heights, 365 m, 9 Feb. 2017, <i>K.W.Grieve 2306</i> (PCE [PCE0014179]); uMzinto district, Vernon Crookes Nature Reserve, 449 m, 7 Feb. 2019, <i>K.W.Grieve 2801</i> (PCE [PCE0013839]); Uvongo sandflats, [19 m], 19 Dec. 1965, <i>R.Strey 6181</i> (NH); Zululand, Hlabisa district, Lake St Lucia, east shore [2832AB], 5–10 m, 30 Apr. 1974, <i>R.H.Taylor 175</i> (NU [NU0092020]); Zululand, Lake Nhlabane, 5 Jan. 1992, <i>C.J.Ward & A.Rajh 11674</i> (UDW [UDW13406]); Zululand, “ N’goya ” [oNgoye, 2831DD], 1000–2000 ft., 18 Mar. 1904, <i>J.M.Wood 9322</i> (K [K000195292]).</p>Published as part of <i>Kissling, Jonathan, Grieve, Kate W., Grieve, Graham & Bytebier, Benny, 2023, Exochaenium natalense (Gentianaceae), a reinstated taxon endemic to KwaZulu-Natal, South Africa, pp. 117-122 in Phytotaxa 619 (1)</i> on pages 120-121, DOI: 10.11646/phytotaxa.619.1.8, <a href="http://zenodo.org/record/8425836">http://zenodo.org/record/8425836</a>
The human-dog relationship in early medieval England and Ireland (c. AD 400-1250)
No full textThis thesis aims to explore the human-dog relationship in early medieval England and Ireland (c. AD 400-1250) and so develop an improved understanding of how people perceived and utilised their dogs. In 1974, Ralph Harcourt published a seminal paper reviewing the metrical data for archaeological dog remains excavated from British antiquity. Nearly forty years on, many more dog bones have been excavated and recorded. His results from the Anglo-Saxon period illustrated that the degree of skeletal variability had reduced after the end of the Roman occupation, with an increase in the average size. He also observed two distinct groups in the estimated shoulder height measurements.The key areas that have been considered include: dog functionality, morphology, and treatment. Influences that may have led to changes in people’s perception of dogs during this time period have been examined. Differences between England and Ireland are assessed, but variation in recording methods has meant the data obtained on the Irish dogs were limited. An interdisciplinary approach has been taken, combining archaeological, historical and anthrozoological information. New evidence has shown that humans’ relationships with dogs were more complex and varied than previous research would suggest, especially in the treatment of dogs at their death. This was particularly evident in England, where a change in the burial location of dogs was observed from the end of the seventh century, and could be linked to the development of Christianity and its negative teachings towards the dog. More metrical data from English sites have shown that the two distinct groups observed in Harcourt’s Anglo- Saxon results were no longer apparent
Figure 1 in Phylogenetic relationships among genera in the Calanidae (Crustacea: Copepoda) based on morphology
No full textFigure 1. Selected characters and their scores as detailed in Tables 1 and 2. Leg 1 of: (A) Megacalanus longicornis; (B) Neocalanus gracilis; (C) Calanus australis; (D) Calanus finmarchicus (from Giesbrecht 1893; Sars 1903; Bradford-Grieve 1994). Leg 2 exopod segment 2 of: (E) Megacalanus longicornis; (F) Undinula vulgaris; (G) Calanus australis; (H) Neocalanus gracilis (original figures; Giesbrecht 1893).Published as part of Bradford-Grieve, Janet M. & Ahyong, Shane T., 2010, Phylogenetic relationships among genera in the Calanidae (Crustacea: Copepoda) based on morphology, pp. 279-299 in Journal of Natural History 44 (5-6) on page 284, DOI: 10.1080/00222930903359644, http://zenodo.org/record/520718
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Book Review: Impact Structures in Canada, Richard A. F. Grieve
No full textBook Review: Impact Structures in Canada, Richard A. F. Grieve. Geological Association of Canada (2006).The Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform February 202
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