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    Book Review:Impact structures in Canada, by Richard A. F. Grieve.

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    Book Review:Impact structures in Canada, by Richard A. F. Grieve
    Journals at the University of Arizona
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    Book Review: Impact Structures in Canada, Richard A. F. Grieve

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    Book 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
    The University of Arizona

    A Roundtable for Victoria M. Grieve, Little Cold Warriors: American Childhood in the 1950s

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    Dr. 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
    Embry-Riddle Aeronautical University

    Astronaut's guide to terrestrial impact craters

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      Impact cratering of the Earth's surface is discussed and compared with lunar craters. Known craters on earth are ordered by location and a few principal facts are given for each crater and the general terrain in which it is located. A satellite picture of each crater and maps identifying crater locations are provided.R.A.F. Grieve ... [and others].World Map of Impact Craters -- Impact Craters in North America -- Impact Craters in South America -- Impact Craters in Europe -- Impact Craters in Asia -- Impact Craters in Africa -- Impact Craters in Australia -- Possible Impact Crater
      USRA Houston Repository

      sj-docx-1-mdm-10.1177_0272989X221100717 – Supplemental material for A Machine-Learning Approach for Estimating Subgroup- and Individual-Level Treatment Effects: An Illustration Using the 65 Trial

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      Supplemental material, sj-docx-1-mdm-10.1177_0272989X221100717 for A Machine-Learning Approach for Estimating Subgroup- and Individual-Level Treatment Effects: An Illustration Using the 65 Trial by Zia Sadique, Richard Grieve, Karla Diaz-Ordaz, Paul Mouncey, Francois Lamontagne and Stephen O’Neill in Medical Decision Making</p
      The Francis Crick Institute

      Christopher Murray Grieve alias Hugh MacDiarmid (1892-1978)

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      This 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
      ARCA (Univ. Ca'Foscari)
      Archivio istituzionale della ricerca - Università degli Studi di Venezia Ca' Foscari

      Exochaenium natalense Kissling & K. W. Grieve

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      &lt;i&gt;Exochaenium natalense&lt;/i&gt; (Schinz) Kissling &amp; K.W.Grieve, &lt;i&gt; &lt;i&gt;combinatio nova&lt;/i&gt;.&lt;/i&gt; &lt;p&gt; &lt;i&gt;Basionym&lt;/i&gt;:&mdash; &lt;i&gt;Belmontia natalensis&lt;/i&gt; Schinz (1894: 220).&lt;/p&gt; &lt;p&gt; &lt;i&gt;Homotypic synonyms&lt;/i&gt;:&mdash; &lt;i&gt;Exochaenium grande&lt;/i&gt; var. &lt;i&gt;homostylum&lt;/i&gt; Hill (1908: 338).&lt;/p&gt; &lt;p&gt; &lt;i&gt;Sebaea natalensis&lt;/i&gt; (Schinz) Schinz (1906:782), &lt;i&gt;nom. illeg.&lt;/i&gt; [non &lt;i&gt;Sebaea natalensis&lt;/i&gt; Schinz (1896:442)].&lt;/p&gt; &lt;p&gt; Type:&mdash; SOUTHAFRICA. KwaZulu-Natal, Clairmont, 5 Aug. 1893, &lt;i&gt;Schlechter 3060&lt;/i&gt; (Lectotype Z [Z000070706]!, &lt;i&gt;hic designatus&lt;/i&gt;; isolectotype Z [Z000070705]!).&lt;/p&gt; &lt;p&gt; &lt;b&gt;Nomenclatural notes:&lt;/b&gt; &mdash;There are two sheets of &lt;i&gt;Schlechter 3060&lt;/i&gt; 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 &lt;i&gt;International Code of Nomenclature for algae, fungi and plants&lt;/i&gt; Arts 8.2 and 8.3 (Turland &lt;i&gt;et al.&lt;/i&gt; 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.&lt;/p&gt; &lt;p&gt; When Schinz transferred &lt;i&gt;Belmontia natalensis&lt;/i&gt; to the genus &lt;i&gt;Sebaea&lt;/i&gt; in 1906, he clearly forgot that he had already described a different and currently still accepted species, as &lt;i&gt;Sebaea natalensis&lt;/i&gt; in 1896. Thus, should &lt;i&gt;Exochaenium natalense&lt;/i&gt; ever be transferred to the genus &lt;i&gt;Sebaea&lt;/i&gt;, it will need a new name.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Diagnosis:&lt;/b&gt; &mdash;This species is morphologically closely allied to &lt;i&gt;Exochaenium grande&lt;/i&gt; (E.Mey.) Griseb., but is markedly different in terms of its much smaller flower size of &lt;i&gt;c.&lt;/i&gt; 0.8&ndash;1.5 cm diameter (&lt;i&gt;vs c.&lt;/i&gt; 3.0&ndash; 4.5 cm for &lt;i&gt;E. grande&lt;/i&gt;) and the arrangement of the reproductive organs, with anthers positioned at the same level as the stigma (&lt;i&gt;vs&lt;/i&gt; distyly in &lt;i&gt;E. grande&lt;/i&gt;), possibly indicating differences in pollination strategies. The species can also be differentiated on the basis of their ecological preferences.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Description:&lt;/b&gt; &mdash;Annual, erect herbs, 15&ndash;20 cm tall. &lt;i&gt;Stems&lt;/i&gt; simple, rarely branched from base, sometimes branched above, 4-ridged. &lt;i&gt;Leaves&lt;/i&gt; sessile, opposite, 7&ndash;20 mm long, 3&ndash;6 mm broad, lanceolate, acute at apex, base narrowed, margin entire, basal leaves sometimes reduced. &lt;i&gt;Inflorescence&lt;/i&gt; corymbose, lax, single to several flowered. &lt;i&gt;Calyx&lt;/i&gt; of 4 or 5 free sepals, each 7&ndash;16 mm long, 3&ndash;5 mm broad, ovate-lanceolate, acuminate, with conspicuous keel-wing, 2&ndash;3 mm broad at semi-cordate base, hyaline, presence of colleters on inside base. &lt;i&gt;Corolla&lt;/i&gt; pure white; tube 9.0&ndash; 14.5 mm long, infundibuliform; corolla lobes suborbicular, 5.0&ndash; 8.5 mm long, 4&ndash;5 mm broad, margins entire, apex acuminate. &lt;i&gt;Stamens&lt;/i&gt; inserted &plusmn; half way up tube, at same level as stigma. &lt;i&gt;Filaments&lt;/i&gt; 6.0&ndash; 9.5 mm long; &lt;i&gt;anthers&lt;/i&gt;, &lt;i&gt;c.&lt;/i&gt; 1&ndash;2 mm long, each with apical and 2 tiny stipitate basal glands. &lt;i&gt;Ovary&lt;/i&gt; ovoid, &lt;i&gt;c.&lt;/i&gt; 2&ndash;6 &times; 2&ndash;4 mm, bilocular, placentation axile, ovules numerous. &lt;i&gt;Style&lt;/i&gt; and &lt;i&gt;stigma&lt;/i&gt; 4&ndash;18 mm long, filiform. &lt;i&gt;Stigma&lt;/i&gt; slightly clavate, papillose. &lt;i&gt;Fruit&lt;/i&gt; and &lt;i&gt;seed&lt;/i&gt; not seen.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Iconography:&lt;/b&gt; &mdash; Hill (1908: 317, plate G). See also drawing accompanying plate K000195293 (&lt;i&gt;J.M.Wood 541&lt;/i&gt;) from Royal Botanic Gardens Kew.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Distribution:&lt;/b&gt; &mdash;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.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Ecology and habitat:&lt;/b&gt; &mdash; 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 &amp; 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.&lt;/p&gt; &lt;p&gt; &lt;i&gt;Exochaenium natalense&lt;/i&gt; and &lt;i&gt;E. grande&lt;/i&gt; occur sympatrically although the latter has a much wider distribution. The two species also have different ecological preferences&mdash;whereas &lt;i&gt;E. grande&lt;/i&gt; is usually found in well drained grassland, &lt;i&gt;E. natalense&lt;/i&gt; is always found in seasonally wet to moist grassland (sometimes even in water).&lt;/p&gt; &lt;p&gt; &lt;b&gt;Etymology:&lt;/b&gt; &mdash;This taxon was named by Schinz (1894), after its geographical origin, previously named Natal and now KwaZulu-Natal, in South Africa.&lt;/p&gt; &lt;p&gt; &lt;b&gt;Conservation status:&lt;/b&gt; &mdash;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 &amp; Rutherford 2006). &lt;i&gt;Exochaenium natalense&lt;/i&gt; is a habitat specialist and is fairly uncommon within this region of &lt;i&gt;c.&lt;/i&gt; 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&rsquo; 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&ndash;iv).&lt;/p&gt; &lt;p&gt; &lt;b&gt;Representative specimens examined:&lt;/b&gt; &mdash; SOUTH AFRICA. KwaZulu-Natal: Eisdumbeni, 1800 ft., &lt;i&gt;J.M.Wood 133&lt;/i&gt; (K [K000195293], NH [NH0004093 -0]); [Durban] &ldquo; Bei Port Natal &rdquo;, 28 Mar. 1832, &lt;i&gt;J.F.Dr&egrave;ge s.n.&lt;/i&gt; (P [P00560847]); [Durban] Fields Hill, 358m,n.d., &lt;i&gt;H.Evans 190&lt;/i&gt; (NH); Inanda,[Durban district],[252m], &lt;i&gt;J.M.Wood 541&lt;/i&gt; (K [K000195293], NH [NH0002056-0]); Izinqoleni district: Kwazamane, 394 m, 21 Mar. 2019, &lt;i&gt;K.W.Grieve 2841&lt;/i&gt; (PRE); Margate, [114 m], 4 Feb. 1987, &lt;i&gt;H.B.Nicholson 2561&lt;/i&gt; (PCE [PCE0005454]); Mvoti kloof, Canema estate, 7 Oaks, [2930BA], 20 Jan. 1990, &lt;i&gt;A.Abbott 4999&lt;/i&gt; (PCE [PCE0005472], NH); Oribi, [432 m], Apr.1937, &lt;i&gt;A.McClean 442&lt;/i&gt; (NH); Paddock district, Oribi Flats, Whistling Pine Farm, 482 m, 25 Jan. 2017, &lt;i&gt;K.W.Grieve 2295&lt;/i&gt; (PCE [PCE0014180]); Port Edward, Red Desert Nature Reserve coastal section, 10 m, 8 Dec. 2015, &lt;i&gt;K.W.Grieve 1886&lt;/i&gt; (NU [NU0088250]); Port Edward, Red Desert Nature Reserve coastal section, 17 m, 23 Feb. 2017, &lt;i&gt;K.W.Grieve 2322&lt;/i&gt; (PCE [PCE0014181]); Port Edward, Red Desert Nature Reserve coastal section, 24 m, 6 Jan. 2022, &lt;i&gt;K.W.Grieve 3078&lt;/i&gt; (NH); Port Edward, Izingolweni roadside, [3130AA], 2 Jan. 1965, &lt;i&gt;O.M.Hilliard 3038&lt;/i&gt; (NU [NU0092021]); Port Edward, Umtamvuna Nature Reserve, [350 m], 14 Apr. 1982, &lt;i&gt;H.B.Nicholson 2248&lt;/i&gt; (PCE [PCE0005455]); Port Edward, Umtamvuna Nature Reserve, Clearwater, [350 m], 3 Mar. 1983, &lt;i&gt;A.Abbott 880&lt;/i&gt; (PCE [PCE0005451]); Port Edward, Umtamvuna Nature Reserve, [350 m], 13 Mar. 1984, &lt;i&gt;A.Abbott 1827&lt;/i&gt; (NH, PCE [PCE0005450]); Port Edward, Umtamvuna Nature Reserve, Office [Beacon Hill], [350 m], 12 Feb. 1986, &lt;i&gt;A.Abbott 2982a&lt;/i&gt; (NH, PCE [PCE0005449]); Port Edward, Umtamvuna Nature Reserve, [350 m], 31 Mar. 1995, &lt;i&gt;A.Abbott 6740&lt;/i&gt; (NH); Port Edward, Umtamvuna Nature Reserve, Beacon Hill, [350 m], 2 Mar. 1997, &lt;i&gt;C.J.Potgieter s.n.&lt;/i&gt; (NU [NU0092023]); Port Edward, Umtamvuna Nature Reserve, western heights, 365 m, 9 Feb. 2017, &lt;i&gt;K.W.Grieve 2306&lt;/i&gt; (PCE [PCE0014179]); uMzinto district, Vernon Crookes Nature Reserve, 449 m, 7 Feb. 2019, &lt;i&gt;K.W.Grieve 2801&lt;/i&gt; (PCE [PCE0013839]); Uvongo sandflats, [19 m], 19 Dec. 1965, &lt;i&gt;R.Strey 6181&lt;/i&gt; (NH); Zululand, Hlabisa district, Lake St Lucia, east shore [2832AB], 5&ndash;10 m, 30 Apr. 1974, &lt;i&gt;R.H.Taylor 175&lt;/i&gt; (NU [NU0092020]); Zululand, Lake Nhlabane, 5 Jan. 1992, &lt;i&gt;C.J.Ward &amp; A.Rajh 11674&lt;/i&gt; (UDW [UDW13406]); Zululand, &ldquo; N&rsquo;goya &rdquo; [oNgoye, 2831DD], 1000&ndash;2000 ft., 18 Mar. 1904, &lt;i&gt;J.M.Wood 9322&lt;/i&gt; (K [K000195292]).&lt;/p&gt;Published as part of &lt;i&gt;Kissling, Jonathan, Grieve, Kate W., Grieve, Graham &amp; Bytebier, Benny, 2023, Exochaenium natalense (Gentianaceae), a reinstated taxon endemic to KwaZulu-Natal, South Africa, pp. 117-122 in Phytotaxa 619 (1)&lt;/i&gt; on pages 120-121, DOI: 10.11646/phytotaxa.619.1.8, &lt;a href="http://zenodo.org/record/8425836"&gt;http://zenodo.org/record/8425836&lt;/a&gt
      ZENODO

      Impact craters of the Earth

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      Map showing the location of 87 impact craters on Earth and a table showing the name, diameter, age, and coordinates.Data from R. A. F. Grieve and P. B. Robertso
      USRA Houston Repository

      sj-docx-3-mdm-10.1177_0272989X221145048 – Supplemental material for A Comparison of Ordered Categorical versus Discrete Choices within a Stated Preference Survey of Whole-Blood Donors

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      Supplemental material, sj-docx-3-mdm-10.1177_0272989X221145048 for A Comparison of Ordered Categorical versus Discrete Choices within a Stated Preference Survey of Whole-Blood Donors by Zia Sadique, John Cairns, Kaat De Corte, Sarah Willis, Alec Miners, Nick Bansback and Richard Grieve in Medical Decision Making</p
      The Francis Crick Institute

      sj-docx-2-mdm-10.1177_0272989X221145048 – Supplemental material for A Comparison of Ordered Categorical versus Discrete Choices within a Stated Preference Survey of Whole-Blood Donors

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      Supplemental material, sj-docx-2-mdm-10.1177_0272989X221145048 for A Comparison of Ordered Categorical versus Discrete Choices within a Stated Preference Survey of Whole-Blood Donors by Zia Sadique, John Cairns, Kaat De Corte, Sarah Willis, Alec Miners, Nick Bansback and Richard Grieve in Medical Decision Making</p
      The Francis Crick Institute
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