A personagem Bigger Thomas na obra de Richard Wright e a construção de identidade afro-americana

This paper analyzes the character Bigger Thomas Native Son’s American novel published in 1940 by African-American author Richard Wright. Through this character we try to study more the post-slavery racial issue in a country where racial segregation was legally sustained and how this issue was reflected in society and identity formation of their native sons African-American

Narrow-band search of continuous gravitational-wave signals from Crab and Vela pulsars in Virgo VSR4 data

In this paper we present the results of a coherent narrow-band search for continuous gravitational-wave signals from the Crab and Vela pulsars conducted on Virgo VSR4 data. In order to take into account a possible small mismatch between the gravitational-wave frequency and two times the star rotation frequency, inferred from measurement of the electromagnetic pulse rate, a range of 0.02 Hz around two times the star rotational frequency has been searched for both the pulsars. No evidence for a signal has been found and 95% confidence level upper limits have been computed assuming both that polarization parameters are completely unknown and that they are known with some uncertainty, as derived from x-ray observations of the pulsar wind torii. For Vela the upper limits are comparable to the spin-down limit, computed assuming that all the observed spin-down is due to the emission of gravitational waves. For Crab the upper limits are about a factor of 2 below the spin-down limit, and represent a significant improvement with respect to past analysis. This is the first time the spin-down limit is significantly overcome in a narrow-band search.

Directed search for gravitational waves from Scorpius X-1 with initial LIGO data

We present results of a search for continuously emitted gravitational radiation, directed at the brightest low-mass x-ray binary, Scorpius X-1. Our semicoherent analysis covers 10 days of LIGO S5 data ranging from 50-550 Hz, and performs an incoherent sum of coherent F-statistic power distributed amongst frequency-modulated orbital sidebands. All candidates not removed at the veto stage were found to be consistent with noise at a 1% false alarm rate. We present Bayesian 95% confidence upper limits on gravitational-wave strain amplitude using two different prior distributions: a standard one, with no a priori assumptions about the orientation of Scorpius X-1; and an angle-restricted one, using a prior derived from electromagnetic observations. Median strain upper limits of 1.3 x 10(-24) and 8 x 10(-25) are reported at 150 Hz for the standard and angle-restricted searches respectively. This proof-of-principle analysis was limited to a short observation time by unknown effects of accretion on the intrinsic spin frequency of the neutron star, but improves upon previous upper limits by factors of similar to 1.4 for the standard, and 2.3 for the angle-restricted search at the sensitive region of the detector.

Advanced LIGO

The Advanced LIGO gravitational wave detectors are second-generation instruments designed and built for the two LIGO observatories in Hanford, WA and Livingston, LA, USA. The two instruments are identical in design, and are specialized versions of a Michelson interferometer with 4 km long arms. As in Initial LIGO, Fabry-Perot cavities are used in the arms to increase the interaction time with a gravitational wave, and power recycling is used to increase the effective laser power. Signal recycling has been added in Advanced LIGO to improve the frequency response. In the most sensitive frequency region around 100 Hz, the design strain sensitivity is a factor of 10 better than Initial LIGO. In addition, the low frequency end of the sensitivity band is moved from 40 Hz down to 10 Hz. All interferometer components have been replaced with improved technologies to achieve this sensitivity gain. Much better seismic isolation and test mass suspensions are responsible for the gains at lower frequencies. Higher laser power, larger test masses and improved mirror coatings lead to the improved sensitivity at mid and high frequencies. Data collecting runs with these new instruments are planned to begin in mid-2015.

Autobiografia e Ficção: análise do narrador em Extinção - Uma Derrocada, de Thomas Bernhard

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Martha Thomas Fitzgerald Papers - Accession 273

The Martha Thomas Fitzgerald Papers consist of biographical data, correspondence, minutes, newspaper clippings, memoranda, reports, and photographs (of particular interest are the many photographs of rural S.C. school houses in the 1920s). The collection pertains to Mrs. Fitzgerald’s work with the South Carolina Department of Education, the South Carolina House of Representatives, and her work with various civic organizations such as the Altrusa Club, the League of Women Voters, the Daughters of American Colonists, United Daughters of the Confederacy (UDC), Business and Professional Women’s Club (BPW), Delta Kappa Gamma, South Carolina Vocational Rehabilitation, and the Salvation Army. There is also information on the Status of Women Commission Council on Aging, agriculture, Queens College, University of South Carolina, Winthrop University, Columbia University, public health, South Carolina history, City of Columbia, South Carolina, and Richland County, South Carolina. Correspondents include Strom Thurmond and three letters from John F. Kennedy when he was senator. Mrs. Fitzgerald was the first woman elected to the South Carolina House of Representatives in a general election.

Thomas Belue Collection - Accession 35 - M11 (21)

The Thomas Belue Collection consists of the diary of Thomas Belue of Union County, South Carolina. He enrolled as a private in the Confederate Army in Co. F, Captain C.W. Boyd’s , 15th SCV. The diary covers August, 1861 to September, 1863, and May 1864. Belue describes battles fought in South Carolina, Georgia,Tennessee, and Virginia, mileage covered, camp life and events that occurred during his time in the army. The collection also includes biographical information, genealogical information, a partial transcript of the diary, and copies of Belue’s military records. In addition there is a tintype in a case of Belue in his uniform, two copies of the tintype, and photographs of his gravestone at Gilead Baptist Church Cemetery in Union County, South Carolina.

Thomas Spratt Memoir - Accession 50 M23 (34)

The Thomas Spratt Memoir consists of a typescript account titled Recollections of the Spratt Family, detailing the history of the Spratt family of York County, South Carolina from the arrival in America of Thomas Spratt from County Down, Ireland, in 1740 to 1876.

Thomas Smithwick Gettys Papers - Accession 54

Thomas Smithwick Gettys (1912-2003) was a lawyer and U.S. Representative for the Fifth Congressional District of South Carolina. The Thomas Smithwick Gettys Papers consist of reports, resolutions, correspondence, news releases, government publications, and newspaper clippings, relating to Getty’s efforts to enlarge and develop the Cowpens Battlefield Site of Cherokee County, South Carolina. Correspondents include Ernest Hollings, Donald Russell, John P. Saylor, W.S. Stuckey, Jr., Roy A. Taylor, Mark W. Clark, Wayne Aspinall, and Stewart Udall.

Thomas Jefferson Johnston Collection - Accession 1217, M582 (635)

The Thomas Jefferson Johnston Papers consists of the Civil War diary of Thomas Jefferson Johnston (1837-1894) from 1861 to August 7, 1864. Also included is a transcription of the journal as well as contextual notes of what was occurring during the war at large by Robert James Johnston (1945-) (great grandson of Thomas Jefferson Johnston) in 1992.

Book Review of Venereal Disease and the Lewis and Clark Expedition by Thomas P. Lowry

Although Lewis and Clark literature has proliferated in the last decade, few works have added scholarly discourse to this field of study. The highly focused Venereal Disease and the Lewis and Clark Expedition, however, will likely stand out on the Lewis and Clark bookshelf as an important contribution.

“PROVINCIALISM, PICKING SIDES AND BIAS: EFFECTS OF GEOGRAPHY ON MEDIA COVERAGE OF CRYSTAL BRIDGES MUSEUM OF AMERICAN ART, 2005-10.”

The development of Crystal Bridges Museum of American Art in Bentonville, Arkansas, by Wal-Mart heiress Alice Walton has prompted diverse coverage from print and online media. This investigation looked at trends in news stories and commentary from 2005-10 to show how the location of a medium affected coverage. Through the author’s own observations and interviews with journalists and other interested parties, several trends emerged. Media outlets outside Arkansas portrayed the museum as trying to plunder the cultural heritage of local communities and relied partly on the museum’s association with Wal-Mart and stereotypes of Arkansas to frame coverage. Arkansas media, faced with limited cooperation from the museum’s public relations apparatus, typically played a cheerleader role, at times overemphasizing the importance of the collection in the art world and showcasing few critical voices in stories about acquisitions and other areas of the museum’s development.

A new karyotype for the spiny rat Clyomys laticeps (Thomas, 1909) (Rodentia, Echimyidae) from Central Brazil

Clyomys Thomas, 1916 is a semifossorial rodent genus of spiny rats represented by only one species, C. laticeps, which inhabits the tropical savannas and grasslands of central Brazil and eastern Paraguay. Here we describe a new karyotype of C. laticeps found in populations of Emas National Park, Goias state, Brazil. The four analyzed specimens had a diploid number (2n) of 32 and a fundamental autosome number (FN) of 54. Cytogenetic data include conventional staining, CBG and GTG-banding. The karyotype presents 12 meta/submetacentric pairs (1 to 12) and 3 pairs of acrocentrics (13 to 15) with gradual decrease in size. The X chromosome is a medium submetacentric and the Y is a medium acrocentric. The semifossorial habits together with habitat specificity could have contributed to the karyological variations found on this genus.

A new species of Callicebus Thomas, 1903 (Primates, Pitheciidae) from the states of Mato Grosso and Pará, Brazil

A new species of titi monkey, genus Callicebus Thomas, 1903, is described based on four individuals, one from a small tributary of the left bank of Rio Teles Pires, northern state of Mato Grosso, and three others from Largo do Souza, Rio Iriri, Pará, Brazil. The new species belongs to the Callicebus moloch species group, and the main diagnostic characteristics of the new species are the whitish forehead, sideburns and beard coloration, which are contiguous, forming a frame around the blackish face; overall body pelage coloration is pale grayish-brown agouti; hands, feet and tip of the tail whitish; belly and inner sides of fore and hind limbs uniformly orange. The pattern of pelage coloration and qualitative and quantitative skull morphology are described and compared to the other species of the Callicebus moloch group. Species of the Callicebus moloch group show great similarity in skull morphology and morphometrics, making the external morphological characters, specially the chromatic fields, the most reliable diagnostic trait to identify the species.

Electron Interactions with Disulfide Bridges

Because of its electronic properties, sulfur plays a major role in a variety of metabolic processes and, more in general, in the chemistry of life. In particular, S-S bridges between cysteines are present in the amino acid backbone of proteins. Protein disulfur radical anions may decay following different paths through competing intra and intermolecular routes, including bond cleavage, disproportionation, protein-protein cross linking, and electron transfer. Indeed, mass spectrometry ECD (electron capture dissociation massspectroscopy) studies have shown that capture of low-energy (<0.2 eV) electrons by multiply protonated proteins is followed by dissociation of S-S bonds holding two peptide chains together. In view of the importance of organic sulfur chemistry, we report on electron interactions with disulphide bridges. To study these interactions we used as prototypes the molecules dimethyl sulfide [(CH3)2S] and dimethyl disulfide [(H3C)S2(CH3)]. We seek to better understand the electron-induced cleavage of the disulfide bond. To explore dissociative processes we performed electron scattering calculations with the Schwinger Multichannel Method with pseudopotentials (SMCPP), recently parallelized with OpenMP directives and optimized with subroutines for linear algebra (BLAS) and LAPACK routines. Elastic cross sections obtained for different S-S bond lengths indicate stabilization of the anion formed by electron attachment to a σ*SS antibonding orbital, such that dissociation would be expected.