67,063 research outputs found
Whartonia Ewing 1944
No full textGenus Whartonia Ewing, 1944 Type species Hannemania nudosetosa Wharton, 1938Published as part of Bassini-Silva, R., Zampaulo, R. A., Welbourn, C., Ochoa, R., Brescovit, A. D., Barros-Battesti, D. M. & Jacinavicius, F. C., 2022, A new genus and two new species of chigger mites (Trombidiformes: Leeuwenhoekiidae) from Brazilian caves with notes about the genus Whartonia Ewing, 1944, pp. 1297-1313 in Journal of Natural History 56 (29 - 32) on page 1305, DOI: 10.1080/00222933.2022.2118087, http://zenodo.org/record/715638
Eutrombicula Ewing 1938
No full textEutrombicula Ewing, 1938 Eutrombicula Ewing, 1938: 293; Loomis & Wrenn, 1984: 152; Domrow & Lester, 1985: 8; Hoffmann, 1990: 42; Stekolnikov & González-Acuña, 2015: 3. Type species: Microthrombidium alfreddugesi Oudemans, 1910Published as part of Bassini-Silva, Ricardo, Jacinavicius, Fernado de Castro, Muñoz-Leal, Sebastián, Maturano, Ralph, Welbourn, W. Calvin, Ochoa, Ronald, Bauchan, Gary R. & Barros-Battesti, Darci M., 2018, A new species of the genus Eutrombicula Ewing, 1938 (Trombidiformes: Trombiculidae) and new records for the species Eutrombicula batatas (Linnaeus, 1758) in Brazil, pp. 976-986 in Acarologia 1938 (4) on page 978, DOI: 10.24349/acarologia/20184304, http://zenodo.org/record/539098
Individual and group decision-making on an optimal stopping problem
Full text linkMichael J Paradowski, Gary J Ewing and Michael R Web
Geologic Survey of the Ewing Bank, Northern Gulf of Mexico
Full text linkLocated along the edge of the continental shelf in the northwestern Gulf of Mexico, the Ewing Bank is a significant geologic feature: yet, little information about the bank is generally available. This thesis represents a preliminary survey of the distribution and structure of the seafloor sediments that comprise the bank and the surrounding area. Two research vessels were utilized to accomplish the survey: the RV Gyre collected geologic cores and sub-bottom profiler lines courtesy of TDI-Brooks International and the RV Falkor collected multibeam echo sounder bathymetry courtesy of the Schmidt Ocean Institute. The bathymetry collected by the sub-bottom profiler and multibeam echo sounder data for this study is consistent with the coarser resolution data previously available. The pattern of seismic reflectors in the sub-bottom profiles indicated the orientation and type of faults as well as other structures. The geologic cores and sub-bottom profiler data helped to identify the different types and distributions of the sediments that made up this two terrace bank system. A core from the surface of the top terrace contained coarse carbonate sands while the seafloor surrounding this bank was comprised of firm clay sediment. The characteristics of surficial sediments on the second, deeper terrace were closer to those on the seafloor surrounding the bank than the top terrace of the Ewing Bank itself. This difference may reflect winnowing by the shelf edge currents interacting with the structure of the Ewing Bank together with the fact that the top terrace was subject to shallow water wave action and subaerial exposure during the lowstand of sea level associated with the last glactiation; while the surficial sediments of the second terrace were deposited since sea level rose after the end of the last glaciation. The features of the Ewing Bank compared well with those of the surrounding banks of the area. The results of this preliminary survey of the Ewing Bank contribute to the general understanding of the geologic features and biological habitat at the many banks in the north western Gulf of Mexico and the geologic processes that affect them
The promoter-associated noncoding RNA PNCCCND1_B assembles a protein–RNA complex to regulate cyclin D1 transcription in Ewing sarcoma
No full textMost Ewing sarcomas are characterized by the in-frame chromosomal translocation t(11;22) generating the EWS–FLI1 oncogene. EWS–FLI1 protein interacts with the RNA helicase DHX9 and affects transcription and processing of genes involved in neoplastic transformation, including CCND1 (the cyclin D1 gene), which contributes to cell-cycle dysregulation in cancer. In this study, we found that CCND1 expression is significantly higher in patients with Ewing sarcoma compared with other sarcomas and that the pncCCND1_B RNA, a previously uncharacterized CCND1 promoter-associated noncoding (pnc) transcript, is expressed in Ewing sarcoma cells. PncCCND1_B interacted with the RNA-binding protein Sam68 and repressed CCND1 expression. Notably, knockdown of Sam68 affected pncCCND1_B subcellular localization and cyclin D1 expression. Pharmacologic impairment of DHX9/EWS–FLI1 interaction promoted RNA-dependent association of Sam68 with DHX9 and recruitment of Sam68 to the CCND1 promoter, thus repressing it. Conversely, mitogenic stimulation of Ewing sarcoma cells with IGF1 impaired Sam68/DHX9 interaction and positively regulated CCND1 expression. These studies uncover a fine-tuned modulation of the proto-oncogene CCND1 in Ewing sarcoma cells via alternative complexes formed by DHX9 with either EWS–FLI1 or pncCCND1_B-Sam68
Dermanyssus prognephilus Ewing
No full text<p> <b> <i>Dermanyssus prognephilus</i> Ewing</b> </p> <p> Ex <i>Sialia sialis</i> (eastern bluebird) nestbox: ~50 F and N, NC, Haywood Co., Purchase Knob, 29 May 2003, W. K. Reeves, L­3076.</p> <p> <i>Dermanyssus prognephilus</i> is a nest dwelling ectoparasite of birds.</p>Published as part of <i>Reeves, Will K., Durden, Lance A., Ritzi, Christopher M., Beckham, Katy R., Super, Paul E & Oconnor, Barry M., 2007, Ectoparasites and other ectosymbiotic arthropods of vertebrates in the Great Smoky Mountains National Park, USA, pp. 31-68 in Zootaxa 1392</i> on page 47, DOI: <a href="http://zenodo.org/record/273680">10.5281/zenodo.273680</a>
Targeting the EWS-FLI1 transcription factor in Ewing sarcoma
No full textPreclinical data indicate there is strong synergism of action against Ewing sarcoma in sequential treatment with trabectedin followed by irinotecan and it appears to be related to a selective blockade of the transcription factor EWS-FLI1. This combination was evaluated in Ewing sarcoma patient who was progressing with standard therapies
Syringophilopsis elongatus Ewing 1911
No full textSyringophilopsis elongatus (Ewing, 1911) This species was reported from four icterid avian hosts (Icteridae): Agelaius phoeniceus (Linnaeus) (type host), Euphagus carolinus (Müller), Quiscalus quiscula (Linnaeus), and Quiscalus mexicanus (Gmelin), and from one cardinalid species Pheucticus melanocephalus (Swainson) (Ewing 1911, Clark 1964, Casto 1976, Kethley 1970, Hood and Welch 1980, Bochkov and Galloway 2001). Below, we give the record of a new host – Euphagus cyanocephalus (Wagler). M a t e r i a l e x a m i n e d: One female and 2 nymphs from secondary quills (Rs3, 4) of Euphagus cyanocephalus (Wagler) (Passeriformes: Icteridae); USA, California, Shasta Co., Glenburn, 2005, G. Spicer coll. (GSS#1574). All material deposited at NMNH.Published as part of Maciej Skoracki, Maureen E. Flannery & Greg S. Spicer, 2008, Quill mites of the genus Syringophilopsis Kethley, 1970 (Acari: Syringophilidae) from North American birds, pp. 291-300 in Folia Parasitologica 55 on page 299, DOI: 10.5281/zenodo.32191
Meriola tablas Platnick & Ewing
No full textMeriola tablas Platnick & Ewing Figs 80–82, 96 Meriola tablas Platnick & Ewing, 1995: 22, figs 49–53 (male holotype from Las Tablas, E Curico, Curico, Región del Maule (VII), Chile, in AMNH, not examined). Diagnosis. Males are very similar to M. manuel by the similar body shape and the relatively flat oval carapace, and by the long, straight, basally widened RTA, but differ by the uniform pattern of the abdomen, and the shorter RTA. Females (Fig. 80) are also similar to M. manuel, but differ by the uniform abdominal pattern and the larger spermathecae. Description. Male and female described by Platnick & Ewing (1995). Natural history and habitat. Unknown. Distribution. Known from Neuquén province in Argentina and Quillota, Santiago, Curicó and Talca provinces in Chile (Fig. 96). Material examined. Chile: Región V (de Valparaíso), Prov. Quillota: Las Palmas de Ocoa, R. Calderón, 31.VIII.1984, not burned, trap#14, 1 male, sample MGM-00490 (AMNH). Región VII del Maule: Prov. Talca: Alto de Vilches 70 km E Talca, S & J. Peck, 5.XII.1985, 1300 m, Nothofagus, for FIT, 1 female, sample MGM- 00489 (AMNH).Published as part of González, María E., Grismado, Cristian J. & Ramírez, Martín J., 2021, A Taxonomic Revision Of The Spider Genus Meriola Banks (Araneae: Trachelidae), pp. 1-113 in Zootaxa 4936 (1) on pages 103-105, DOI: 10.11646/zootaxa.4936.1.1, http://zenodo.org/record/455916
(Table 2, page 225) The composition of manganese nodules from the Scotia basin and the M. Ewing bank in the Southern Atlantic
No full text(Table 2, page 225) The composition of manganese nodules from the Scotia basin and the M. Ewing bank in the Southern Atlanti
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