62,445 research outputs found
1993-1994 T. R. Pearson
No full textT. R. Pearson, a.k.a. Rick Gavin, was born in Winston-Salem, North Carolina. He was a student at North Carolina State University, where he gained a B.A. and M.A. in English. He was the first recipient of the John and Renée Grisham Writer in Residence Fellowship. He is the acclaimed author of fourteen novels, including A Short History of a Small Place and Warwolf, and a dozen screenplays. Top of the Rock is his fifth nonfiction book. He lives in Virginia and Brooklyn, New York. (Photo credit: Marian Young)https://egrove.olemiss.edu/grisham_res/1026/thumbnail.jp
Rowella Lopes & Klautau 2023, GEN. NOV.
No full textGENUS ROWELLA GEN.NOV. Z o o b a n k r e g i s t r a t i o n: h t t p s: / / z o o b a n k.o r g / urn:lsid:zoobank.org:act: 5163DADD-AD0B-47B9- A595-369DACFA329C. Type species: Leucettusa simplicissima Burton, 1932. Synonym: Leucetta – Poléjaeff, 1883: 28; non Haeckel, 1872: 117. Leucettusa – Dendy & Row, 1913: 738; Burton, 1963: 50; Borojević et al., 1990: 258; 2002: 1148; Hooper & Wiedenmayer, 1994: 481; Voigt et al., 2012: 11; Klautau et al., 2013: 454; Riesgo et al., 2018: 835. Etymology: Named after Dr Harold Row for his efforts on the systematics of calcareous sponges and for being the co-author of Leucaltidae. Diagnosis: Leucettidae with an amorphous or tubular massive body.The well-developed cortical skeleton can be comprised of single or multiple layers of triactines and/ or tetractines. The choanosomal and the atrial skeletons are comprised of pygmy triactines and tetractines. Aquiferous system leuconoid, syconoid or both. Remarks: Most of the species here assigned to RoƜella have a tubular body but several others can grow ramifications (e.g. R. simplicissima), while some have a pyriform or amorphous shape (e.g. R. pyriformis and R. dyctiogaster). More than the external morphology, every member of this genus has a peculiar spicule category, named primarily as pygmy triactines and/ or tetractines by Poléjaeff (1883: 67). These spicules are present in the choanosomal and atrial regions, in different proportions among species. We opt to follow Poléjaeff’s termination and refer to these spicules as pygmy in our descriptions. It is important to highlight that Leucaltis and RoƜella were not recovered as sister-taxa. Hence, pygmy spicules are different from the small choanosomal and atrial spicules of Leucaltis, differing from what was previously thought (e.g. Borojević et al., 1990). Pygmy spicules may have even a reduced actine (assuming a V-shape). As Poléjaeff (1883) just called them pygmy, not defining them, we are defining them by their size range (from 10.0–83.0 μm length to 2.5–13.0 μm width) and location scattered in the choanosomal and atrial skeletons. The presence of these morphological traits should be considered in the diagnosis of the genus. We could not resolve doubts on Leucettusa soyo (Hôzawa, 1933). This species had its position questioned in previous works (e.g. Dendy & Row, 1913; Rapp, 2004; Cavalcanti et al., 2013) and was allocated in different calcinean genera. Hôzawa’s (1933) description is doubtful, because important morphological characters, such as the presence of anastomosed tubes, were not clearly mentioned. He described a massive sponge, with radial choanocyte chambers around the atrium. Yet, he also mentioned the presence of ‘ascon-tubes’ and described the aquiferous system as ‘Dendy’s type D’ (Dendy, 1891), i.e. solenoid (Cavalcanti & Klautau, 2011). This is the only description available for this species and it is not satisfactory for its identification. We consider this a case of species inquirenda and highlight Cavalcanti et al. ’s (2013) statement that its position is uncertain and new material is necessary to make a proper genus assignment. Scope: Ten previously described ‘ Leucettusa ’ species are being transferred to the new genus RoƜella: R. connectens (Brøndsted, 1926); R. dictyogaster (Row & Hôzawa, 1931); R. haeckeliana (Poléjaeff, 1883); R. imperfecta (Poléjaeff, 1883); R. lancifera (Dendy, 1924); R. mariae (Brøndsted, 1926); R. pyriformis (Brønsted, 1926); R. simplicissima (Burton, 1932); R. tubulosa (Dendy, 1924) and R. Ʋera (Poléjaeff, 1883). Leucettusa nuda (Azevedo et al., 2009) is considered a junior synonym of R. simplicissima. Leucettusa soyo (Hôzawa, 1933) is considered species inquirenda.Published as part of Lopes, Matheus Vieira & Klautau, Michelle, 2023, Phylogeny and revision of Leucaltis and Leucettusa (Porifera: Calcarea), with new classification proposals and description of a new type of aquiferous system, pp. 691-746 in Zoological Journal of the Linnean Society 198 on pages 715-716, DOI: 10.1093/zoolinnean/zlad008, http://zenodo.org/record/789415
Leituras críticas da obra de João Simões Lopes Neto: Província de São Pedro e Caderno de Sábado
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-graduação em LiteraturaEste trabalho tem como objetivo reunir e recuperar leituras críticas esparsas da obra de João Simões Lopes Neto publicadas na revista Província de São Pedro e no suplemento literário Caderno de Sábado, facilitando a pesquisa de outros estudiosos interessados em sua obra. O trabalho de transcrição foi realizado seguindo as normas padronizadas pela Filologia contemporânea, a fim de determinar os critérios adotados para a transcrição dos textos. Num primeiro momento, apresenta-se a apreciação da obra simoniana por parte dos críticos e, num segundo momento, são apresentados os vinte e oito textos selecionados para a transcrição
Dynamical hypothesis tests and Decision Theory for Gibbs distributions
No full textWe consider the problem of testing for two Gibbs probabilities and
defined for a dynamical system . Due to the fact that in
general full orbits are not observable or computable, one needs to restrict to
subclasses of tests defined by a finite time series , , , where
denotes a suitable measurable function. We determine in
each class the Neyman-Pearson tests, the minimax tests, and the Bayes
solutions, and show the asymptotic decay of their risk functions, as
. In the case of being a symbolic space, for each , these optimal tests rely on the information of the measures for
cylinder sets of size
Leucascus tenuispinae Klautau & Lopes & Tavares & Pérez 2022, SP. NOV.
No full textLEUCASCUS TENUISPINAE SP. NOV. <p>(FIG. 15; TABLE 7)</p> <p> <i>Z o o b a n k r e g i s t r a t i o n:</i> u r n: l s i d: z o o b a n k. org:act: 4EB114CF-5870-4338-95FE-09BE9C398196.</p> <p> <i>Diagnosis:</i> Subglobular <i>Leucascus.</i> S skeleton composed of fusiform diactines, triactines and rare tetractines with short spines.</p> <p> <i>Etymology:</i> For the microspines on the apical actine of the tetractines (<i>tenues</i> = thin; <i>spinae</i> = spines).</p> <p> <i>Type locality:</i> Portail Caves, La Réunion, Indian Ocean.</p> <p> <i>Ty p e m a t e r i a l:</i> H o l o t y p e – U F R J P O R 8 9 2 7 (= 171110- ESB2 - TP2). Photos: TP6114–6116. Portail Caves, La Réunion, Indian Ocean, coll. T. Pérez, 10 November 2017, 25 m depth.</p>Published as part of <i>Klautau, Michelle, Lopes, Matheus Vieira, Tavares, Gabriela & Pérez, Thierry, 2022, Integrative taxonomy of calcareous sponges (Porifera: Calcarea) from Réunion Island, Indian Ocean, pp. 671-725 in Zoological Journal of the Linnean Society 194</i> on pages 697-699, DOI: 10.1093/zoolinnean/zlab014, <a href="http://zenodo.org/record/6354284">http://zenodo.org/record/6354284</a>
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Soleneiscus intermedius Klautau & Lopes & Tavares & Pérez 2022, SP. NOV.
No full textSOLENEISCUS INTERMEDIUS SP. NOV. (FIGS 7, 8; TABLE 3) Z o o b a n k r e g i s t r a t i o n: u r n: l s i d: z o o b a n k. org:act: C9AE024F-7E3F-4B46-AD5F-A9E6704B59B8. Diagnosis: Soleneiscus that grows in the form of ramified tubes at the base and whose skeleton is composed of diactines, rare triactines located only at the oscular region and two types of tetractines. The diactines are thin, maximum thickness of 7.5 µm. Etymology: From Latin intermedium, meaning intermediate, in between, for the close morphological similarity with other species. Type locality: Portail Caves, La Réunion, Indian Ocean. Ty p e m a t e r i a l: H o l o t y p e – U F R J P O R 8 9 3 3 (= 171110 ESB2 TP6). Portail Caves, La Réunion, Indian Ocean, coll. T. Pérez, 10 November 2017, 18– 20 m depth. Colour: Sponge light yellow in life and white in ethanol (Fig. 7A, B). Morphology and anatomy: Cormus formed by ramified and erect tubes, ending in a single osculum without a crown (Fig. 7A, B). Surface hispid due to the presence of diactines lying perpendicular to the surface (Fig. 7B). The lumen of the tubes is also hispid due to the long apical actines of the tetractines (Fig. 7C, D). Aquiferous system asconoid. Skeleton composed of diactines, two size categories of tetractines, and rare triactines (Fig. 8).Published as part of Klautau, Michelle, Lopes, Matheus Vieira, Tavares, Gabriela & Pérez, Thierry, 2022, Integrative taxonomy of calcareous sponges (Porifera: Calcarea) from Réunion Island, Indian Ocean, pp. 671-725 in Zoological Journal of the Linnean Society 194 on page 685, DOI: 10.1093/zoolinnean/zlab014, http://zenodo.org/record/635428
Letter from J. R. Eakin to Carl Hayden
No full textLetter from J. R. Eakin to Carl T. Hayden concerning access to Rowe Well and the canyon
Letter from J. R. Eakin to Stephen Mather
No full textLetter from J. R. Eakin to Stephen T. Mather about expenses and reconstruction of the Kaibab Trail
Lelapiella tertia Klautau & Lopes & Tavares & Pérez 2022, SP. NOV.
No full textLELAPIELLA TERTIA SP. NOV. (FIGS 17, 18; TABLE 9) Zoobank registration: urn:lsid:zoobank.org:act: AF5A1C7E-AA51-4D4B-A330- CAD 0D653719E. Diagnosis: Lelapiella with cortical tripods and choanosomal triactines and tetractines. Diactines and spicules tracts absent. Etymology: From the Latin word tertius, which means third, because this is the third recognized species of the genus. 704 M. KLAUTAU ET AL . Type locality: Passe de l’Hermitage, La Réunion, Indian Ocean. Ty p e m a t e r i a l: H o l o t y p e – U F R J P O R 8 9 3 7 (= 171109- PAE2 - TP13). Passe de l’Hermitage Reef, La Réunion, Indian Ocean, coll. T. Pérez, 9 November 2017, 18– 20 m depth. Colour: Sponge white to beige in life and white in ethanol (although we have not observed this species during the collection, it corresponds probably to the sponge in Fig. 17A). Morphology and anatomy: Sponge encrusting, with radial growing and oscula on the top of short cones (Fig. 17A–C). Aquiferous system leuconoid. Surface smooth. The skeleton is composed of large cortical tripods (Fig. 17D) and choanosomal triactines (Fig. 17E) and few tetractines (Fig. 17F). Sagittal triactines and tetractines similar to those of the choanosome support the oscula. Trichoxeas are also present.Published as part of Klautau, Michelle, Lopes, Matheus Vieira, Tavares, Gabriela & Pérez, Thierry, 2022, Integrative taxonomy of calcareous sponges (Porifera: Calcarea) from Réunion Island, Indian Ocean, pp. 671-725 in Zoological Journal of the Linnean Society 194 on pages 702-704, DOI: 10.1093/zoolinnean/zlab014, http://zenodo.org/record/635428
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