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Pacifigorgia sculpta Breedy & Guzman, 2004, new species
No full textPacifigorgia sculpta, new species (Figs. 1 G–H, 5 A–C) Material examined. Holotype: UCR 1497, Islote Frailes, Península de Azuero, 10–30 m, H.M. Guzman, 9 December 2001. Paratypes: MCZ 57053, Islote Frailes, 10–30 m, H.M. Guzman, 9 December 2001; STRI 389–390, Isla Jicarita, Gulf of Chiriquí, 20 m, H.M. Guzman, 8 August 2002; STRI 410–412, Isla Seca Grande, Gulf of Chiriquí, 20 m, H.M. Guzman and O. Breedy, 26 August 2002; STRI 454, Isla Roncadores, Gulf of Chiriquí, 10–20 m, H.M. Guzman and O. Breedy, 30 August 2002; STRI 476, 482, 497, Bajo Foul, Península de Azuero, 15 m, H.M. Guzman, 11 April 2003; STRI 602, Islote Frailes, 20 m, H.M. Guzman, 1 May 2003; STRI 628, Roca Catedral, 5–15 m, H.M. Guzman, 3 May 2003; STRI 650, Bajo Brincanco, Gulf of Chiriquí, 10–30 m, H.M. Guzman, 5 May 2003; STRI 718, 721–722, 729 – 731, 734, Bajo Trollope, Gulf of Panama, 10–20 m, H.M. Guzman, 6 August 2003; UCR 1037, 1042, Islote Frailes, 10–20 m, H.M. Guzman, 6 August 2003; UCR 1171, 1173, 1175, 1177, 1179, 1181, 1183, 1505, Roca Niagara, Gulf of Panama, 10–20 m, H.M. Guzman, 13 December 2001; UCR 1361 –1365, 1506, Piedra Hacha, 20–30 m, H.M. Guzman, 22 April 2002; UCR 1498, Isla Jicarita, Gulf of Chiriquí, 20–30 m, H.M. Guzman, 19 April 2002; UCR 1499, 1501, 1508, Islote Frailes, 10–30 m, H.M. Guzman, 12 December 2001. Description. Colonies wider than high, up to 120 mm in height and 200 mm in width. Most of the colonies are composed of a single fan, but some have two or three secondary fans that radiate from different parts of the main fan and grow parallel. Colour when preserved or alive is dark orange or reddish brown with lighter hues at the tips, and light ochre when dry. Colonies have a large holdfasts, and fans grow directly from this or sprout from short stems (up to 7 mm in diameter). Network is irregular. Meshes are very open (about 2–3 meshes/cm ²), mostly elongate, up to 45 mm in length, and 25 mm in width. Mesh branches are squarish in section, from 3 mm thick at their base to 1 mm at their tips. No midribs cross the fans, just some thick branches (up to 6 mm in diameter) at the base that diminish and merge with the fan. Endbranchlets are long; up to 25 mm in length. Freetwigs are abundant, up to 15 mm in length; they stick out from the fans, twist and grow parallel as free branches. The polyps are retracted within domeshaped coenenchymal mounds, which are prominent and arranged mostly in pairs along the sides of the branches. In dry specimens, the lateral distribution of the calices is more evident, and bands of coenenchyme are clear between them. The polyps are yellowish with rods arranged in strong, thick points, with some untidily arranged intermediate rods. The anthocodial rods are long, colourless or pale yellow (up to 0.18 mm in length and 0.02 mm in width). The coenenchymal sclerites are very ornamented, and are mostly large spindles (up to 0.22 mm in length, and 0.06 mm in width) with up to 8 complete whorls of tubercles, and warty ends. They are redorange to pale yellow and bicoloured, and together with P. s e n t a, include the longest spindles found in the genus. Capstans are less abundant in the slide samples; they are scarcely ornate, with only short tubercles. Holotype. The holotype (Fig. 1 G) is a single fan, 100 mm in height and 135 mm in width. Part of the holdfast was left behind when the specimen was collected. The preserved colony is reddish brown colony. Mesh branches are thick, about 2 mm in diameter. Numerous free twigs radiate from the fan as free branchlets. Endbranchlets reach 12 mm. Coenenchymal sclerites are redorange, pale yellow and bicoloured. They are mostly large spindles (up to 0.18 mm in length, and 0.06 mm in width) with 4–8 complete whorls of delicately sculpted tubercles, and with elongated warty ends, blunt, or acute (Fig. 5 A). There are also small, pale yellow capstans (up to 0.05 mm in length and 0.03 mm in width), and larger ones (up to 0.08 mm in length by 0.04 mm in width) with short, moderately warty tubercles (Fig. 5 B). Anthocodial sclerites are pale yellow. They are thin, long rods (up to 0.17 mm in length and 0.02 mm in width) with dentate margins and have acute, small warts, concentrated at the ends (Fig. 5 C). Remarks. This species is very similar to P. s e n t a, however, P. senta attains a larger size, the mesh branches are thinner, the meshwork finer (up to 23 mm long), and the colony has a more delicate appearance in comparison to the more robust P. sculpta. Dry specimens of P. s e n t a are brittle and the sclerites fall off easily, which is not the case in dry specimens of P. sculpta. Sclerites in both species are the largest recorded for the genus. Spindles in P. s e n t a and in P. sculpta reach the same size (up to 0.22 mm in length, and 0.06 mm in width), however, in P. s e n t a, the spindles have more whorls of tubercles (up to 10) than in P. sculpta (up to 8); thus sclerites of the latter have larger spaces between the whorls (and very warty tubercles). Capstans of both species are of similar shapes, but smaller sizes are reported for P. s e n t a (up to 0.06 mm in length) (Breedy & Guzman 2003 b). The colour of coenenchymal sclerites is definitely different. In all of the specimens of P. sculpta examined, two layers of differently coloured sclerites are clearly defined: reddishorange sclerites in the inner coenenchyme and pale yellow on the surface. In P. s e n t a, on the other hand, all sclerites are of the same colour; brownish pink to colourless. Anthocodial rods are also different, being shorter (up to 0.14 mm in length) and less spiny in P. s e n t a. We have found P. s c u l p t a at several localities in the Gulf of Chiriquí, and also from two sites in the Gulf of Panama, down to 30 m in depth. Breedy & Guzman (2003 b) pointed out that Stiasny (1943) dealt with a species from Isla del Rey, Gulf of Panama, sent to him by Hickson, which agrees with P. senta. Therefore, it was expected that P. s e n t a would be found to occur in Panama. Pacifigorgia senta has been collected from deeper waters, down to 40 m in Costa Rica. In recent collections made by dredging 35–60 m in depth, in Panamá, specimens of P. senta were indeed found, thus the occurrence of P. s e n t a is herein reported and confirmed. Curiously, both P. senta and P. sculpta, were collected together in the same dredge, what indicates that they may occur together. Habitat. Found from 10–40 m in depth, on vertical basaltic walls, living together with large P. e x i m i a colonies and many other octocorals. Though abundant in some places, this species is never the dominant species. Etymology. An adjective (L), sculptus = carved, in allusion to the ornamentation of the spindles. Distribution. Found widely distributed along Gulf of Panama, Gulf of Chiriquí, and Península de Azuero.Published as part of Breedy, Odalisca & Guzman, Hector M., 2004, New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama, pp. 1-15 in Zootaxa 541 on pages 12-14, DOI: 10.5281/zenodo.15770
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Cooperation, comity, and competition policy /
No full text'Cooperation, Comity, and Competition Policy' edited by Andrew T. Guzman, illustrates how domestic competition law policies intersect with the realities of international business
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Leptogorgia cofrini Breedy & Guzman 2005
No full text<i>Leptogorgia cofrini</i> Breedy & Guzman, 2005 <p>(Fig. 36A, 65)</p> <p> <i>Leptogorgia cofrini</i>. Breedy & Guzman, 2005: 3–9.</p> <p> <b>Material examined.</b> Holotype: UCR 398A, preserved, Islas Tortugas, Golfo de Nicoya, Costa Rica, 1.5 m, J. Cortés, 18 July 1985.</p> <p>Other material examined: PANAMA: ZMUC-ANT 129 q, s, u, v, Taboguilla Island, 5 m, T. Mortensen, 2 November 1915.</p> <p> <b>Diagnosis</b> (according to Breedy & Guzman 2005). Small, white colonies, up to 7 cm in length, and 5 cm in width. Axis cylindrical. Growth form upright, branching abundant, and in multiple planes with a single stem, reaching up to 3 mm in height before branching, or multiple stems (up to 4). Polyps sparsely placed all around branches, fully retractile. Sclerites colourless, and mostly capstans, up to 0.09 mm in length, and spindles, up to 0.12 mm in length, and long anthocodial rods up to 0.14 mm in length. The illustrated specimen is a colony 7.0 cm in length, and 6.0 cm in width.</p> <p> <b>Description.</b> Full description in Breedy & Guzman 2005.</p> <p> <b>Distribution.</b> Islas Tortugas, Golfo de Nicoya: type locality. Commonly found along the Pacific coasts of Costa Rica, and Panama (Table 2, Fig. 65).</p>Published as part of <i>Published, First, 2007, A revision of the genus Leptogorgia Milne Edwards & Haime, 1857 (Coelenterata: Octocorallia: Gorgoniidae) in the eastern Pacific, pp. 1-90 in Zootaxa 1419</i> on page 2
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Overheated ::the human cost of climate change /
No full text"In Overheated, Guzman takes climate change out of the realm of scientific abstraction to explore its real-world consequences. He writes not as a scientist, but as an authority on international law and economics"--Book jacket
Thrichilia sp.2 from Colombia collected by P. Trujillo, R. Guzman, E. Kuyuedo #4065
No full textFile Name: TOLI-26538-ZAR-02-0346-280.jpg
CÓDIGO FOTO: TOLI-26538-ZAR-02-0346-280-
Fotografía: SI
Nº TOLI: TOLI-26538
PARCELA: ZAR-02
CÓDIGO: 0346-280
Nº COLECTA: 4065
NUEVOS COLECTORES: Esteban Álvarez Dávila
COLECTORES: P. Trujillo, R. Guzman, E. Kuyuedo
Nº MUESTRAS MONTADAS: 1
Homologación: No homologado
Nueva fecha del evento : 30/11/2018.
Fecha del evento: 25/12/2005.
Proyecto : Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana
Hábitat: Bosque húmedo tropical (bh-T)
Continente: SA
Pais: Colombia
Estado/Provincia: Amazonas
Municipio: Leticia
Localidad: Resguardo Indígena Ticuna-Huitoto Km 6-11.
Elevación minima en metros: 200
Elevación maxima en metros: 300
Latitud: -4.004
Longitud original: -69.896
datum geodésico: WGS 84
Latitud decimal: -4.004
Longitud decimal: -69.896
Identificado por: Pio Trujillo, Álvaro Cogollo & D. Sanchez
Fecha de identificación: 15/06/2019.
Nombre cientifico: Thrichilia sp.2
Reino: Plantae
Filo: Magnoliophyta
Clase: Equisetopsida
Orden: Sapindales
Familia nueva: Meliaceae
Género nuevo: Thrichilia
especie nueva: sp.
: Meliaceae
genero herbario: Thrichilia
especie herbario: sp.
Especie de herbario para TNRS: Thrichilia sp.
Especie corregida herbario y desde TNRS: Trichilia indet
Familia corregida desde TNRS: Meliaceae
: 551
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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