155,947 research outputs found
Williams, M D, 215050
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/425872Surname: WILLIAMS. Given Name(s) or Initials: M D. Military Service Number or Last Known Location: 215050. Missing, Wounded and Prisoner of War Enquiry Card Index Number: SEA-2234.252613
Item: [2016.0049.58133] "Williams, M D, 215050
Williams, M D H, 410761
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/425906Surname: WILLIAMS. Given Name(s) or Initials: M D H. Military Service Number or Last Known Location: 410761. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 53650.252680
Item: [2016.0049.58167] "Williams, M D H, 410761
Aulacodiscus madagascarensis Tempere ex D. M. Williams 2021, nov. sp.
No full textAulacodiscus madagascarensis Tempère ex D.M. Williams, nov. sp. TYPE:— Madagascar (BM Adams 121 = specimen on Figure 26, holotype designated here) (isotypes: BM Adams 137, BM Adams 502, BM 56700, BM 62933). Description:—Cells solitary, radially symmetrical, with conspicuous marginal rimoportulae extending on to valve exterior in hyaline tubes, not reaching centre (annulus), terminating at valve edge in semi-circular slit. Numbers vary, 5–8. Annulus small, central, with rows of loculate puncta situated between marginal rimoportulae. Valves appear dissimilar (compare Figures 22–24, with 25 and 26).Published as part of Williams, David M., 2021, Notes on the diatom collection of the Natural History Museum, London (BM) II- IV. Some type specimens in the genus Aulacodiscus Ehrenberg and nomenclatural notes on Thumia Cleve ex F. B. Taylor, pp. 152-162 in Phytotaxa 480 (2) on page 157, DOI: 10.11646/phytotaxa.480.2.4, http://zenodo.org/record/541601
Monoportula P. A. Sims & D. M. Williams, nov. gen.
No full text<i>Monoportula</i> P.A.Sims & D.M.Williams nov. gen. <p> <b>Registration</b>: http://phycobank.org/103661</p> <p> Type species:— <i>Monoportula uralensis</i> (Strelnikova) P.A.Sims & D.M.Williams nov. comb.</p> <p>Frustules cylindrical, valve face circular, flat. Valve face bordered by expanded marginal ridge separating it from vertical mantle. Areolae poroid, on valve face arranged in interrupted radial and sub-radial rows extending from off-centre hyaline area from which a stout spine extends. Scattered spinules cover valve face disturbing areolar arrangement. Mantle areolae in vertical rows situated between hyaline marginal ridge and hyaline valve margin. Mantle areolae covered by network of anastomosing costae. Internally areolae sunk in rows between hyaline ribs, areolae becoming more numerous towards valve margin. One (1) rimoportula present, its external opening through stout tube expanded at its summit, internally as slit between raised lips.</p>Published as part of <i>Williams, David M., Sims, Pat A. & Witkowski, Jakub, 2023, Notes on the rare Cretaceous species Syndetocystis uralensis Strelnikova leading to the description of a new monotypic genus Monoportula P. A. Sims et D. M. Williams nov. gen., pp. 219-224 in Phytotaxa 595 (2)</i> on page 220, DOI: 10.11646/phytotaxa.595.2.8, <a href="http://zenodo.org/record/7905940">http://zenodo.org/record/7905940</a>
Tetracyclus krasskei D. M. Williams 2014, stat. nov. et nom. nov.
No full textTetracyclus krasskei D. M. Williams, stat. nov. et nom. nov. Basionym: Tetracyclus ellipticus var. lancea f. chilensis Krasske (1939: 357, pl. 10, figs 14–19) non Biblarium chilense Ehrenb. 1854, p. 301, 303, nom. nud. Valves lanceolate, strongly tapering towards poles, 40–120 µm long, 25–35 µm wide (Figures 3, 4; Lange-Bertalot et al. 1996, Taf. 1, figs 3–5). Transapical ribs robust; predominantly primary, rarely secondary, usually more or less parallel, 2–3 in 10µm (Figures 3, 4; Lange-Bertalot et al. 1996, Taf. 1, figs 3–5). Striae more or less parallel, 4–8 rows between ribs. Sternum central, linear, marginally broader at the centre, obscure at the poles (Figures 3, 4). Rimoportulae not observed (absent?) (Figures 3, 4; Lange-Bertalot et al. 1996, Taf. 1, figs 3–5). Girdle bands numerous, open, septate (Figure 5; Lange-Bertalot et al. 1996, Taf. 1, figs 7, 8); septum extending up to ¼ length of valve from one pole (Figure 5; Lange-Bertalot et al. 1996, Taf. 1, figs 1, 2). Possibly 15–20 in total, differentiation not detected. Type: CHILE: “Thermae of Puyehene, Peulo River, Fiord of Reloncavi, Lake Risopatrón, Pascua River, Yacuf snowdrift, near Puyuhuapi” (Krasske 1939: 357) (KASSEL Krasske Collection D III 204 = Figs 3–5, lectotype! designated here; three Krasske slides selected as syntypes in Lange-Bertalot et al. 1996: D. III 190, 191 and 204).Published as part of Williams, David M., 2014, The diatom genus Tetracyclus (Fragilariaceae, Bacillariophyta) from Chile, pp. 151-155 in Phytotaxa 178 (2) on page 153, DOI: 10.11646/phytotaxa.178.2.7, http://zenodo.org/record/514535
Odontidium minutum Levkov & D. M. Williams 2011, sp. nov.
No full textOdontidium minutum Levkov & D.M.Williams, sp. nov. (Figs 1–9; 25–30) Frustula aspectu cinguli rectangulata. Valvae ellipticae (nec lanceolatae) apicubus rotundatae (nec cuneatae), 12–16 µm longae, 9–11 µm latae. Costae transapicales 2–5 in 10 µm, 4–6 striae inter costas. Striae simplices, paralellae in media parte, transientes radiantes vel paulo curvatae sub apicibus 24–30 in 10 µm facile discernandae microscopio photonico. Cingulum simplex et a 4–8 zonis apertis compositum. Type:— MACEDONIA: Lake Ohrid, St. Naum springs, Brown filaments, collection date: 31 January 2003 (Accession No. MKNDC 000407). Slide BM 101466 (holotype). Slide MKNDC 000548 (isotype). Frustules rectangular in girdle view. Valves elliptical, with rounded poles, length 12–16 µm, width 9–11 µm. Transapical ribs nearly all appear primary, 2–5 in 10 µm, c. 4–8 rows of striae between pairs of ribs. Striae simple, parallel towards middle, becoming radiate and slightly curved at valve apices, 24–30 in 10 µm, indistinct. Cingulum simple, composed of 4–8 bands (LM). External valve surface rippled, with numerous small spines (spinules) along valve face margin, each occurring on a virga, irregularly positioned, pointing out from valve in variable directions (Figs 25, 27, 28). Outer valve surface covered with small protrusions (nodules); internally, with uniseriate striae; transapical ribs primary, with few secondary ribs (Figs 29, 30). Sternum broad, ill-defined, extending from each pole into apical pore field (Fig. 27). One rimoportula per valve, polar, oriented within or adjacent to a stria, replacing 3– 5 vimines, a simple slit externally (Figs 27, 28), internally with protruding lips (Figs 29, 30). Apical pore field simple, occurring at each pole, composed of round pores. APF pores are more closely packed than areolae density (Figs 27, 28). Girdle composed of c. 6–10 open bands, all similar, with single series of poroids on pars interior (Figs 25, 26), multiple sets of poroids on pars exterior (Figs 25, 26). Bands become progressively narrower towards epivalve (Figs 25, 26) and covered with small nodules (SEM). Observations:— Odontidium minutum can be characterized by its small valve size and shape, retained during its life cycle. It resembles some smaller specimens of Odontidium mesodon but can be differentiated from it by the valve shape (lanceolate to elliptic–lanceolate) and its smaller size. Additionally, the striae in O. mesodon are coarser and clearly visible with LM (Williams 1985). Odontidium hiemalis has longer valves with a clearer linear outline, coarse striae and a distinct sternum (Williams 1985), features not present in O. minutum. Diatoma vulgaris var. brevis Grunow was considered a synonym of D. vulgaris by Williams (1985) while Krammer & Lange-Bertalot (1991) considered it as an unnamed variant. Patrick & Reimer (1966) recognized Diatoma vulgaris var. brevis as a separate entity characterized by lanceolate shaped valves, larger size (L= 24–50 µm; B= 11–13 µm), coarser and distantly spaced striae (about 16 in 10 µm) and a distinct, linear sternum. Odontidium minutum can be easily differentiated from D. vulgaris var. brevis by its valve shape, size, number and density of ribs (6–8 in 10 µm in the latter), and presence of a distinct sternum. Odontidium can be separated from Diatoma by the structure of the sternum—wide and diffuse in Odontidium —its complex girdle structure and the coarser structure of the striae and ribs of the valves (Van Heurck 1896). The general features of Odontidium are present in these specimens, hence the generic placement of this taxon. Genus Staurosirella Williams & Round (1987)Published as part of Levkov, Zlatko & Williams, David M., 2011, Fifteen new diatom (Bacillariophyta) species from Lake Ohrid, Macedonia, pp. 1-41 in Phytotaxa 30 on pages 2-4, DOI: 10.11646/phytotaxa.30.1.1, http://zenodo.org/record/489439
Interview with Henry C. Williams
No full textHenry C. Williams, a Tennessee native, served during World War II with the 90th infantry division, 3rd Army. He was inducted in April of 1942, starting as a private and leaving as a staff sergeant in November of 1945. He was present on D-Day at Utah Beach as part of the three-man team working a 30-caliber water-cooled machine gun. He is the author of Combat Boots, a memoir of his time in the service
Mrs. M. D. Williams, the former Miss Nami Watson
No full textMrs. M. D. Williams, the former Miss Nami Watson.https://mavmatrix.uta.edu/specialcollections_startelegram1940s/12199/thumbnail.jp
Fragilaria micra Levkov & D. M. Williams 2011, sp. nov.
No full textFragilaria micra Levkov & D.M.Williams, sp. nov. (Figs 46–63) Cellulae solitariae. Valvae lanceolatae quoad specimina maiora sed rhombico–lanceolatae quoad specimina minora, apicibus protractis, rostratis vel capitatis (quoad specimina maiora) ad cuneatis (quoad specimina minora). Longitudo valvae 7–18 µm, latitudo valvae 3.5–4.8 µm. Area axialis angusta, linearis, area centralis lata unlateralis. Striae coarse, uniseriatae, omnino radiantes 18–20 in 10 µm. Puncta striarum non aspectabilia microscopio photonico. Type: — MACEDONIA: Lake Ohrid, Kaneo springs, macrophytes, collection date: 6 August 2004 (accession No. MKNDC 000589). Slide BM 101469 (holotype); Slide MKNDC 000589 (isotype). Cells solitary, valves lanceolate in larger specimens to rhombic-lanceolate in smaller specimens with protracted, rostrated or capitate (in larger specimens) to cuneate ends (in smaller specimens). Valve length 7– 18 µm, valve width 3.5–4.8 µ m. Axial area narrow, linear, central area large, unilateral. Striae coarse, uniseriate, radiate throughout, 18–20 in 10 µm; areolae not recognizable in LM (LM). External valve face (Figs 59, 60, 62) flat without protrusions (marginal spines, spinules); transition from valve face to valve mantle gradual, with valve mantle being fairly low. Sternum narrow, gradually widening towards central area. Central area unilateral, wide, usually possessing depressions representing rudimentary striae. Striae uniseriate, composed of areolae with round to apically elongate foramina. Striae continuing onto valve mantle, not interrupted at the mantle/face junction. Single rimoportula present at one pole. External opening simple, oriented obliquely, slightly larger than areolae. Apical pore fields present on both poles; pore field composed of simple fine porelli arranged in regular rows parallel to the apical axis (Fig. 62). Internally (Figs 61, 63), costa well-developed, wider than striae. Areolae openings apically elongated; no closing plate observed (SEM). Distribution and ecology:—Specimens of F. micra were frequently observed in the epiphytic communities near the sublacustrine springs in Kaneo, Lake Ohrid. These sublacustrine springs are calcareous–rich. Here the diatom community is dominated by Rhoicosphenia macedonica Levkov & Krstic (in Levkov et al. 2007: figs 30: 1–17), Diatoma ochridana Lange-Bertalot & Rumrich (in Lange-Bertalot et al. 1991: figs 19–25, 45–48), several species of Gomphonema Ehrenberg, Cymbella Agardh and Encyonema Kützing. Observations:—Two main features easily differentiate F. micra: its small valve size and valve shape (rhombic–lanceolate). Larger specimens of F. micra may be confused with F. capitellata (Grunow) J.B.Petersen. The valves of F. capitellata have narrowly lanceolate to linear–lanceolate outline (not inflated at the mid-valve) and strongly apiculate ends (Tuji & Williams 2008a: figs 30–43). The valves of F. pectinalis (O.F.Müller) Lyngbye are linear with subcapitate to capitate ends and longer (L=28–37) with lower striae density, 14–15 in 10 µm (Tuji & Williams 2008a: figs 14–27). Fragilaria perminuta (Grunow) Lange-Bertalot (in Krammer & Lange-Bertalot 1991) has a comparable valve size (L= 9–24 µm, B= 3–3.5 µm) to F. micra, but differs significantly by its valve shape (strictly lanceolate without inflation in the mid-valve). Fragilaria capucina is characterized by linear valves, bilateral central area and two small rimoportulae, one on each pole (Tuji & Williams 2006a: figs 6: H–R). The valves of F. vaucheriae (Kützing) J.B.Petersen are linear–lanceolate with coarse and distantly spaced striae (9–14 striae 10 µm) and possess a single rimoportula per valve (Tuji & Williams 2006b: figs 21, 22). Linear–lanceolate valves are present in F. parva (Grunow) Tuji & Williams (2008b: figs 13–28). Additionally, F. parva has a wide, bilateral central area, whereas F. micra has a unilateral central area. Order Naviculales Bessey (1907) sensu emend. Family Naviculaceae Hendey (1937) Genus Navicula Bory (1822)Published as part of Levkov, Zlatko & Williams, David M., 2011, Fifteen new diatom (Bacillariophyta) species from Lake Ohrid, Macedonia, pp. 1-41 in Phytotaxa 30 on pages 8-9, DOI: 10.11646/phytotaxa.30.1.1, http://zenodo.org/record/489439
Measurement of the mass difference m(D-s(+))-m(D+) at CDF II
No full textWe present a measurement of the mass difference m(D-s(+))-m(D+), where both the D-s(+) and D+ are reconstructed in the phipi(+) decay channel. This measurement uses 11.6 pb(-1) of data collected by CDF II using the new displaced-track trigger. The mass difference is found to be m(D-s(+))-m(D+)=99.41+/-0.38(stat)+/-0.21(syst) MeV/c(2)
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