132,006 research outputs found
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
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>
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
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
FIGURE 1. Male Mecynocera clausi I.C. Thompson, 1888 in Mecynocera clausi I. C. Thompson, 1888 (Copepoda: Calanoida) is a paracalanid
No full textFIGURE 1. Male Mecynocera clausi I.C. Thompson, 1888: A (NIWA 45661), lateral view. (NIWA 45661/2): B, leg 1, anterior view. C, leg 2, anterior view. D, leg 5, anterior view. Scale marks 0.1 mm.Published as part of Bradford-Grieve, Janet M., 2008, Mecynocera clausi I. C. Thompson, 1888 (Copepoda: Calanoida) is a paracalanid, pp. 59-64 in Zootaxa 1852 on page 61, DOI: 10.5281/zenodo.18342
Cholecystitis in situs inversus totalis
No full textA 20-year-old male presented to Nambour General Hospital Emergency Department with a 24-h history of left upper quadrant and epigastric pain, nausea, vomiting and fever. The patient had no significant medical or surgical history other than being known to have situs inversus totalis since childhood. His BMI was 38 kg/m2.No Full Tex
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