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FIGURE 2. Cosmos ramirezianus Art. Castro, M. Harker et Aaron Rodr. A. Head, front view. C. Leaves. D. Phyllaries. F. Achenes and persistent paleae. A and D in Two new species of Cosmos section Discopoda (Coreopsideae: Asteraceae) from Jalisco, Mexico
No full textFIGURE 2. Cosmos ramirezianus Art. Castro, M. Harker et Aaron Rodr. A. Head, front view. C. Leaves. D. Phyllaries. F. Achenes and persistent paleae. A and D based on A. Frías & L. M. González-Villarreal 1864 (IBUG); C and F based on A. Castro-Castro & L. M. González-Villarreal 2295 (IBUG). Cosmos pseudoperfoliatus Art. Castro, M. Harker et Aaron Rodr. B. Head, front view. E. Head, lateral view. G. Leaves. H. Head, dorsal view [based on M. Harker et al. 4189 (IBUG holotype)].Published as part of Castro-Castro, Arturo, Harker, Mollie, Vargas-Amado, Georgina & Rodríguez, Aarón, 2013, Two new species of Cosmos section Discopoda (Coreopsideae: Asteraceae) from Jalisco, Mexico, pp. 35-49 in Phytotaxa 146 (2) on page 41, DOI: 10.11646/phytotaxa.146.2.1, http://zenodo.org/record/510015
Alainthesius Ng & Castro, 2016, n. gen.
No full textKey to species of Alainthesius n. gen. 1. Dorsal surface of carapace almost smooth (Figs. 20 C, D; 27D). G1 conspicuously short, stout (Fig. 83 A, B) [Madagascar]......................................................................................... A. signatus n. sp. - Dorsal surface of carapace covered with small flattened granules (Figs. 20 E–H; 27E, F). G1 relatively slender, with distal half elongated (Fig. 83 D–G) [Papua New Guinea; New Caledonia; Fiji]................................ A. bertrandi n. sp.Published as part of Ng, Peter K. L. & Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), pp. 1-182 in Zootaxa 4209 (1) on page 106, DOI: 10.11646/zootaxa.4209.1.1, http://zenodo.org/record/27264
Xenocrate peculiaris Ng & Castro 2007
No full textXenocrate peculiaris Ng & Castro, 2007 (Figs. 49A–H; 50A–D) Xenocrate peculiaris Ng & Castro, 2007: 45, figs. 1–5. – Ng et al. 2008: 79 [in list]. Type material. Male holotype, 34.0 mm × 39.1 mm (NMCR); 1 male paratype, 39.6 mm × 45.8 mm (ZRC 2008.0428), 1 female paratype, 36.9 mm × 42.2 mm (ZRC 2008.0427). Type locality. Philippines, Bohol, Panglao I., Maribojoc Bay, 100–300 m. Material examined. Philippines. Bohol. Panglao I., Maribojoc Bay, tangle nets, 100–300 m, T. J. Arbasto coll., 11.2003 –04.2004: male holotype 34.0 mm × 39.1 mm (NMCR); 06.2004 –05.2005: 1 male paratype, 39.6 mm × 45.8 mm (ZRC 2008.0428). PANGLAO 2005: stn. L45, tangle nets, T. J. Arbasto coll., 80–90 m, 03.07.2004: 1 female paratype, 36.9 mm × 42.2 mm (ZRC 2008.0427). Solomon Is. SALOMON 1: stn. DW 1823, 09°50.4’S, 160°53.2’E, 82–83 m, 04.10.2001: 1 male, 10.5 mm × 12.7 mm (MNHN-B830609). Vanuatu. SANTO 2006: stn.EP40, west Tutuba I., 15°33.1/33.6’S, 167°16.4/16.5’E, tangle net, 125–156 m, 18.10.2006: 1 male, 30.8 mm × 36.8 mm (MNHN-B). Diagnosis. Dorsal, ventral surface of carapace granular, carapace subhexagonal, with two short teeth on each anterolateral border (Fig. 49A–C). Orbits short, shorter than front, wide, spherical (Fig. 49C). Distribution. Western Pacific: Philippines, Solomon Is., and Vanuatu. Depth: 80– 300 m.Published as part of CASTRO, PETER & NG, PETER K. L., 2010, Revision of the family Euryplacidae Stimpson, 1871 (Crustacea: Decapoda: Brachyura: Goneplacoidea), pp. 1-130 in Zootaxa 2375 (1) on pages 115-116, DOI: 10.11646/zootaxa.2375.1.1, http://zenodo.org/record/628270
Large-eddy simulation of dispersion from surface sources in arrays of obstacles
No full textTowards meeting the objective of simulating heat transfer processes in urban areas, the study of dispersion from a scalar (ground) surface area source has been addressed as a first step, as dispersion from such a source is in some ways analogous to heat transfer from the surface. Two different urban-like geometries are considered in this study: an array with uniform height cubes and an array with random height cuboids. Some point measurement dispersion experiments in a wind tunnel have previously been carried out in identical arrays using a naphthalene sublimation technique. Large-eddy simulations (LES) of these experiments have been performed as a validation study and the details, presented here, demonstrate the influence of the roughness morphology on the dispersion processes and the power of LES for obtaining physically important scalar turbulent flux information
La influencia que tienen las expectativas de las madres de familia en la motivación competitiva de un grupo de niñas de 7 a 10 años practicantes de gimnasia artística de la provincia de San José
No full textTesis texto completoPresenta una investigación de tipo descriptiva, fue realizada con el propósito de poner de manifiesto aspectos que pueden influir en la motivación competitiva de un grupo de 13 niñas practicantes de gimnasia con edades entre los 9 y 12 años ubicado en la provincia de San José; para ello se aplicó dos cuestionarios elaborados bajo la revisión y supervisión del equipo asesor de la tesis, tendientes a determinar comportamientos y actitudes de las madres de familia de las niñas gimnastas, que puedan influir en su motivación para llevar a cabo sus sesiones gimnásticas. Uno de estos cuestionarios, fue dirigido propiamente a las madres de familia (n=10) de las gimnastas que participaron en la investigación, con el propósito de identificar aspectos tales como la relación entre ellas y el entrenador de sus hijas, qué esperaban ellas que sus hijas lograsen alcanzar practicando gimnasia, etc. y otro cuestionario dirigido a las gimnastas. Una vez obtenidas las respuestas de cada cuestionario, se procedió al respectivo análisis utilizando estadística no paramétrica (prueba de chi cuadrado) para cada una de las variables.Los resultados de los cuestionarios revelaron que en este caso, las expectativas que tienen las madres hacia sus hijas no influyen en absoluto con su motivación para entrenar o competir en el deporte que practican, en este caso la gimnasia, además de que el principal motivo por el cual este grupo de niñas decidió practicar gimnasia se debe a que les gusta mucho practicar deporte, y la gimnasia es su deporte favorito. Igualmente, se encontró que las madres de estas niñas no tienen un motivo claro del por qué matricularon a sus hijas en este club gimnástico, según los resultados obtenidos en los cuestionarios
Statommatia Ng & Castro, 2016, n. gen.
No full textKey to species of Statommatia n. gen. 1. Carapace conspicuously broad, width to length ratio 1.3–1.4 (Fig. 16 D). Ambulatory meri relatively stout, broad (Fig. 16 D). P2 merus with few pointed tubercles [New Caledonia]............................................... S. knudseni - Carapace not conspicuously broad, width to length ratio 1.1–1.3 (e.g., Fig. 16 A). Ambulatory meri relatively long, slender (e.g., Fig. 16 A). P2 merus unarmed...................................................................... 2 2. Carapace, outer surface of chelae covered with numerous small granules (e.g. Fig. 26 E). Ambulatory legs relatively short (e.g. Fig. 16 H)........................................................................................... 3 - Carapace, outer surface of chelae smooth or only with scattered small granules (e.g., Fig. 26 A). Ambulatory legs relatively long (e.g. Fig. 16 A)................................................................................... 4 3. Anteroexternal angle of merus of third maxilliped auriculiform (Fig. 33 F). G1 distal half short, stout, gently curbing upwards (Fig. 78 C–F) [New Caledonia]............................................................. S. granulosa n. sp. - Anteroexternal angle of merus of third maxilliped rounded, not auriculiform (Fig. 33 D). G1 distal half conspicuously slender, distinctly curving laterally (Fig. 78 A, B) [South China Sea]........................................... S. pubescens 4. G1 with distal half relatively stout, straight, gradually tapering to subtruncate tip (Fig. 77 A–C) [Philippines; Papua New Guinea]........................................................................................ S. apta - G1 distal half slender, strongly tapering, gently curving upwards (Fig. 77 I–K) [Madagascar]............ S. malagasy n. sp.Published as part of Ng, Peter K. L. & Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), pp. 1-182 in Zootaxa 4209 (1) on page 73, DOI: 10.11646/zootaxa.4209.1.1, http://zenodo.org/record/27264
Chinommatia Ng & Castro, 2016, n. gen.
No full textKey to species of Chinommatia n. gen. 1. Carapace, chelipeds, ambulatory legs covered with dense, stiff setae that obscure margins [Vanuatu]........ C. turpis n. sp. - Carapace, chelipeds, ambulatory legs can be covered with low pubescence or scattered setae that never obscure margins or surface................................................................................................2 2. Anteroexternal angle of merus of third maxilliped with broad, auriculiform structure (e.g., Fig. 32 A).................. 3 - Anteroexternal angle of merus of third maxilliped not auriculiform (e.g., Fig. 32 E)................................. 4 3. Inner surface of minor male chela, at base of pollex, with large, swollen tooth (Fig. 44 A, B). Ventral margin of ambulatory merus with small spines even in large individuals (Fig. 44 F). Distal half of G1 distinctly curved (Fig. 75 A) [South China Sea; Philippines]............................................................................... C. cavimanus - Inner surface of minor male chela, at base of pollex, with distinct bilobed tooth (Fig. 44 C, D). Ventral margin of ambulatory merus with prominent spines in large individuals (Fig. 44 H). Distal half of G1 relatively straight (Fig. 75 J) [Papua New Guinea; Fiji].......................................................................... C. bicuspida n. sp. 4. Carapace relatively quadrate (Fig. 14 G–J). G1 relatively stout, tip can be flared (Fig. 75 E, G). Long, slender ambulatory legs (Fig. 14 G–J) [? Philippines; Malaysia (Sarawak); Indonesia]............................................ C. bruuni - Carapace ovate with anterolateral margins arcuate (Fig. 15 A). G1 not known. Relatively short, stout ambulatory legs (Fig. 15 A; Tesch 1918: pl. 9, fig. 3) [Indonesia]........................................................ C. littoralisPublished as part of Ng, Peter K. L. & Castro, Peter, 2016, Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea), pp. 1-182 in Zootaxa 4209 (1) on page 64, DOI: 10.11646/zootaxa.4209.1.1, http://zenodo.org/record/27264
Trapezia lutea Castro 1997
No full textTrapezia lutea Castro, 1997 * (Fig. 4B) Material examined. 1 male (12.6 x 10.8 mm) (DABFUK), Bitra, 13 May 2015. Remarks. Trapezia lutea is superficially similar to Trapezia cymodoce (Herbst, 1801) and many old records of the latter species will need to be checked (see Castro 1997). Both species have a wide Indo-West Pacific distribution and can occur together in the same reef. Trapezia lutea is recorded for the first time from India.Published as part of Devi, S. Suvarna, Mendoza, Jose C. E., Ravinesh, R., Idress Babu, K. K., Kumar, A. Biju & Ng, Peter K. L., 2019, On a collection of brachyuran crabs from Lakshadweep, Indian Ocean (Crustacea: Decapoda: Brachyura), pp. 477-501 in Zootaxa 4613 (3) on page 485, DOI: 10.11646/zootaxa.4613.3.4, http://zenodo.org/record/323986
Lupaeus Castro & Heyer, 2009, gen. nov.
No full textGenus LUPAEUS gen. nov. Cunaxoides — Baker & Hoffmann, 1948: 247 & figs. 94–97 Pulaeus — Den Heyer, 1981 b: 88 –96; Bu & Li 1991: 70 –73 Lupaeus — Kuznetsov & Livshits, 1979: 51 –105; Corpuz-Raros, 1996: 119 –138 Type species: Pulaeus martini Den Heyer, 1981 b Historical-taxonomic review. Berlese (1916) described Eupalus subterraneus without drawings. The three slide specimens on which he based his description are 174 / 27, 174 / 28 and 174 / 29; the first two are both marked ‘tipico’ and belong to the same species while the last one is broken apart. The two intact specimens in the Berlese Collection studied are related to the four species referred to in this paper. Baker & Hoffmann (1948) provided descriptions and drawings of a new species, viz., C. minutus. This species is regarded by the co-author as congeneric with the new genus Lupaeus. We are of opinion that, together with the indicated species in the key to this genus, the following are also new combinations: L. dentatus (Corpuz-Raros, 1996), L. filipinus (Corpuz-Raros, 1996), L. lenis (Corpuz-Raros, 1996), L. longisetus (Corpuz-Raros, 1996), L. polilloensis (Corpuz-Raros, 2007), L. platygnathus (Bu & Li, 1991), Lupaeus trepidus (Kuznetsov & Livshits, 1979) and L. villacarlosae (Corpuz-Raros, 1996). Etymology: The genus name is an anagram of the original name Eupalus, provided by Koch (1838), for a three-jointed cunaxid. Diagnosis of the genus Lupaeus. This genus can be distinguished from other genera of the tribe Pulaeini by the presence of tarsus I with depression distally positioned; basifemur IV with 1 sts; genital seta g 3 near outer margin of the genital valve; palp tibiotarsus with two- or three- pointed process.Published as part of Castro, Tatiane Marie Martins Gomes De & Heyer, Jacob Den, 2009, A revision of the genus Pulaeus Den Heyer, with descriptions of a new genus and four new Brazilian species (Acari: Prostigmata: Cunaxidae), pp. 20-36 in Zootaxa 2141 on page 28, DOI: 10.5281/zenodo.18856
The stability of laminar symmetric separated wakes
No full textTime-dependent computations of the two-dimensional incompressible uniform-velocity laminar flow past a normal flat plate (of unit half-width) in a channel are presented. Attention is restricted to cases in which the well-known anti-symmetric (von Kármán-type) vortex shedding is suppressed by the imposition of a symmetry plane on the downstream plate centreline. With a further symmetry plane at the channel's upper boundary, the only two governing parameters in the problem are the channel half-width, H, and the Reynolds number, Re (based on the body half-width and the upstream velocity, U). The former is restricted to the range 3?H?30 and the interest lies in determining the nature of the initial instability which occurs in the separated wake as Re is gradually increased. It is found that for sufficiently large H and at a critical Re, a long-time-scale global (supercritical) instability is initiated, which in its saturated (limit) state takes the form of ‘lumps’ of vorticity being periodically shed from the tail end of the separated bubble. Stability calculations of corresponding mean flow profiles (typical of those found in the separated wake) are undertaken by examining the impulse response of particular profiles via appropriate solution of the Orr–Sommerfeld equation. The results of this analysis extend those available from related published work and are consistent with the behaviour found from the numerical computations. Taken together, all the results suggest that this type of global instability may be generic to many kinds of separated wakes and, indeed, may provide the fundamental explanation for the very low-frequency oscillations often noticed in fully turbulent wake bubbles
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