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[Kay Littler and Rebecka Osborne at table]
No full textPhotograph of Rebecka Osborne and Kay Littler, two members of the Teach North Texas team, sitting at a table in the AT&T Executive Education Center at UT Austin. They are attending the annual UTeach Conference
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[Kay Littler with students in College of Education]
No full textPhotograph of Kay Littler, a professor, standing at the head of a classroom full of Teach North Texas Students. Lauren Thomas is at the front and is wearing a blue t-shirt. They are part of UNT's College of Education. Behind them is cabinet space and storage boxes
Udotea dotyi D. S. Littler & M. M. Littler 1990
No full textUdotea dotyi D. S. Littler & M. M. Littler (1990: 223) (Fig. 7–14) Type locality: Tobago Cays, Grenadines, Lesser Antilles Description: Thallus erect, light green to dark green, strongly calcified, leathery, growing isolated, up to 10 cm high, attached to the substratum by a bulbous basal portion composed of a rhizoidal mass (Figs 7–9). Stipe short, flattened or cylindrical, strongly calcified, rigid, up to 1 cm long and up to 5 mm wide. Transition between stipe and blade not evident. Blade flabellate or occasionally lobed, sometimes spatulate or flabellate-truncate in lower margin (Figs 7–9), surface flat, multistratose, corticated, with visible concentric zonation, up to 9 cm long. Blade siphons with lateral appendages, siphons cylindrical densely compacted, constrictions above the dichotomies absent, 20–50 µm wide. Lateral appendages densely distributed, often unilaterally (Figs 10, 11) or disposed in a pattern opposite or irregular on the siphons; appendages with short stalks; appendages stalk 40–100 μm long, 20–30 μm in diameter very branched forming a closely packed flattened tips (Figs 11, 12). Stipe siphons with lateral appendages without constrictions at the base, siphons interwoven, longitudinally arranged, 40–70 µm in diameter sparsely distributed irregularly on the siphons (Figs 13, 14); appendages with long stalks, appendages stalk 130–350 μm long, 20–50 μm in diameter, dichotomously branched, with rounded swollen tips (Fig. 14). Fertile specimens were not found. Material examined: BRAZIL. Pernambuco: Goiana, Ponta de Pedras, 07°36’41”S, 34°48’30”W, 27 May 2017, M. F. Oliveira-Carvalho (UFP83634); Itamaracá, Pilar, 07°45’20.04”S, 34°49’17.25”W, 26 April 2017, M. F. OliveiraCarvalho, M. C. B. S. Rocha, C. F. Ximenes (UFP83564), GenBank accession: tuf A OK623532, rbc L OK623528, 20 August 2016, M. F. Oliveira-Carvalho (UFP83565); Itamaracá, Jaguaribe, 07°44’12’’S, 34°49’24”W, 29 August 2016, M. F. Oliveira-Carvalho, M. C. B. S. Rocha, C. F. Ximenes (UFP83448), GenBank accession: tuf A OK623533, rbc L OK623529; Candeias, 08°12’22”S, 34°55’01”W, 28 April 2017, M. F. Oliveira-Carvalho (UFP83584); Itapuama, 08°17’38”S, 34°57’05”W, 21 May 2017, M. F. Oliveira-Carvalho (UFP83585); Cabo de Santo Agostinho, Suape, 8°21’36.15”S, 34°57’15.17”W, 21 July 2017, M. F. Oliveira-Carvalho (UFP83586), 21 May 2016, M. F. OliveiraCarvalho, M. C. B. S. Rocha, C. F. Ximenes (UFP83587), GenBank accession: tuf A OK623531, rbc L OK623527; Serrambi, 08°33’37.35”S, 35°0’58.91”W, 02 July 2016, M. F. Oliveira-Carvalho (UFP83580), 27 April 2017, M. F. OliveiraCarvalho (UFP83579); Tamandaré, Carneiros, 08°42’9.56”S, 35°4’49.74”W, 22 July 2016, M. F. Oliveira-Carvalho, M. C. B. S. Rocha, C. F. Ximenes (UFP83467), GenBank accesion: tuf A OK623534, OK623535, rbc L OK623526. Alagoas: Maragogi, Praia de Maragogi, 09°00’43.2’’S, 35°13’19.2’’W, 13 March 2012, F. Scherner, 4 m depth (PEUFR52367), GenBank accession: rbc L OK623530. Ceará: Paracuru, Pedra Rachada, 3º23’55”S, 39º00’44”, 27 July 2013, M. F. Oliveira-Carvalho (PEUFR52376), GenBank accession: rbc L OK623525. Habitat: Specimens were found growing on sandy substratum in the intertidal zone or, more rarely, on rocky in calm areas. Also found in subtidal zone at 4 m depth. Remarks: The analyzed Brazilian specimens of Udotea dotyi showed great external morphological plasticity regarding the blade shape but sharing the multistratose blades with zonation, and continuous stipe-blade junction. Our specimens agree with the dimensions of the thallus and blade by Acosta-Calderón et al. (2018), differing only by the longer stipe (up to 1 cm long vs. 8–13 mm, Acosta-Calderón et al. 2018). The diameter of blade siphons and stipe siphons are almost perfectly within the range found by Acosta-Calderón et al. (2018, 20–40 μm in diam. and 40–70 μm in diam., respectively). However, Brazilian specimens did not present blade siphons covered by appendages predominantly opposite as described by Littler & Litter (1990) and Acosta-Calderón et al. (2018), being often unilateral in our specimens (Table 3). Despite gross morphology and anatomical variations, Brazilian specimens correspond to U. doty i based on our molecular results. Most of our specimens were found only in the intertidal zone, growing on sandy substratum, nevertheless U. dotyi from Alagoas state occurred from the intertidal to subtidal zones up to 4 m depth. As our specimens, U. dotyi from the Gulf of Mexico grows from intertidal (on sandy bottom) to subtidal to 3 m depth (Acosta-Calderón et al. 2018), whereas the most specimens from the Caribbean Sea are often collected from moderately deep at 12–25 m (Littler & Littler 1990).Published as part of Rocha, Mayara C. B. S., Pereira, Sonia M. B., Oliveira-Carvalho, Maria F., Benko- Iseppon, Ana M., Ximenes, Caroline F., Fujii, Mutue T. & Cassano, Valéria, 2023, Morphological and molecular characterization of Udotea species (Bryopsidales, Chlorophyta) from northeastern Brazil with a new record of U. dotyi from the western south Atlantic, pp. 57-74 in Phytotaxa 578 (1) on page 65, DOI: 10.11646/phytotaxa.578.1.3, http://zenodo.org/record/751765
<i>Taonia abbottiana</i> sp. nov. (Dictyotales, Phaeophyceae) from the Tropical Western Atlantic1
No full textTaonia abbottiana (Dictyotales, Phaeophyceae) de l’Atlantique tropical occidental. Une nouvelle espèce d’algue brune, Taonia abbottiana D.S. Littler et M.M. Littler, est décrite de l’Atlantique tropical occidental. A ce jour, c’est le seul taxon du genre présent dans cette region. Taonia abbottiana diffère des autres espèces du genre par (1) des sporanges élevés au dessus de la surface par un pédicelle composé de deux cellules et (2) par une couche corticale de surface composée de cellules différentiées, plus petites que celles des couches médullaires. Taonia abbottiana a souvent été confondu avec Stypopodium zonale, mais ces deux taxons different anatomiquement par le développement des cellules directement derrière la zone de croissance marginale ; de plus, lorsque les deux espèces vivent à des profondeurs semblables, T. abbottiana a logiquement des lignes concentriques brillamment colorées, tandis que S. zonale a des lignes concentriques sombres.A new species of brown algae, Taonia abbottiana D.S. Littler et M.M. Littler, is described from the tropical western Atlantic. To date, this is the only member of the genus reported from the region. Taonia abbottiana differs from other species of the genus in having (1) sporangia raised above the surface layer on a stalk composed of two cells, and (2) in addition having a surface cortical layer of differentiated cells that are smaller than those of the medullary layers. Taonia abbottiana has often been confused with Stypopodium zonale, but the two differ anatomically in the development of cells directly behind the growing margin and, when living at similar depths, T. abbottiana consistently has light colored concentric lines, while S. zonale has dark concentric lines.</p
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Modelling and control of a variable-speed switched reluctance generator based wind turbine
No full textThis paper studies the system modelling and control aspects of switched reluctance generator (SRG) based variable speed wind turbines. A control system is implemented to provide proper operation of the SRG as well as power tracking capabilities for varying wind speeds. The control system for the grid side inverter that will allow the SRG to properly generate power to the system is also presented. Studies are presented of both the SRG and inverter control systems capabilities during a balanced three-phase fault. The paper will demonstrate that the SRG based wind turbine presents a feasible variable wind speed solution with good fault response capabilities
Churchmanship and personality among clergymen in the church in Wales : are Anglo-Catholic priests more feminine?
Get PDFThe aim of the present study is to develop and test a new measure of Anglo-Catholic orientation capable of assessing the extent of the continuing influence of the Anglican-Catholic movement among Anglican clergy and useful for testing theories regarding the association between Anglo-Catholic orientation and personality. Data provided by a sample of 232 clergymen serving in the Church in Wales support the internal consistency reliability of the 21-item Francis-Littler Anglo-Catholic Orientation Scale, and, in terms of the Eysenckian dimensional model of personality, demonstrate that Anglo-Catholic orientation is associated with higher levels of psychological femininity as assessed by the neuroticism scale, but not as assessed by the psychoticism scale
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.
Get PDFIFN-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
A Critical Portfolio: Being Chiefly Reports on New Music and Opera (1987-88) by a Critic Living in Hamilton, Ontario
Get PDFThe critical portfolio here collected was written under the guidance of Mr. William Littler, music critic of the Toronto Star. ][t is primarily an idiosyncratic account of the new music concerts and opera productions in the Toronto and Hamilton area between June, 1987 and June, 1988. Canadian composers, performers and performings organizations are mentioned prominently, though significant concerts and operas from elsewhere lend breadth and depth to the coverage. In an introductory essay, the thorny matter of using words to write about music is dealt with obliquely, through a discussion of the organization of the separate reports into a portfolio. The overall form of the portfolio is a literary one which alludes to traditional symphonic forms. A short statement of the author's critical predilections serves as the critical creed in which these separate reports have a common origin. The introduction also lists the publications in which the some of the critiques first appeared. A summary of the editorial practices of the different publications explains the outside influences on the writing included in this portfolio.Master of Arts (MA
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