975 resultados para Hamilton, Henry---1796


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Pós-graduação em Estudos Literários - FCLAR

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The Henry Radcliffe Sims Papers consist primarily of personal and business correspondence and offers a good source of information on the Sims family's varied interests in South Carolina, especially their businesses in Orangeburg, South Carolina. The correspondence generally deals with Henry Sims' brief military career; his presidency at Winthrop; his efforts along with his brothers' help to establish a radio station at Orangeburg; his constant concern in the Sims Publishing Company; his interest in the political and educational welfare of his nephews; his devotion to his family; and his association with various South Carolina legislators. Areas of research would perhaps include, among others, biographical information on Sims and his family; their contributions to South Carolina, especially in the area of publications (ex. Times and Democrat’s historical development). There is also material relating to Sims’ nephew, Hugo Sims Jr., and the latter’s 1946 campaign for a seat in the South Carolina House of Representatives. Correspondents include Olin Johnston, Burnet Rhett Maybank, John T. Riley and Strom Thurmond.

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The taxonomic status of the species Clibanarius sclopetarius (Herbst, 1796) and Clibanarius vittatus (Bosc, 1802), which have sympatric biogeographical distributions restricted to the western Atlantic Ocean, is based only on differences in the colour pattern of the walking legs of adults. Their morphological similarity led to the suggestion that they be synonymised. In order to investigate this hypothesis, we included species of Clibanarius Dana, 1892 in a molecular phylogenetic analysis of partial sequences of the mitochondrial 16S rDNA gene and the COI barcode region. In addition, we combined the molecular results with morphological observations obtained from several samples of these two species. The genetic divergences of the 16S rDNA and COI sequences between C. sclopetarius and C. vittatus ranged from 4.5 to 5.9% and 9.4 to 11.9%, which did not justify their synonymisation. Differences in the telson morphology, chela ornamentation, and coloration of the eyestalks and antennal peduncle provided support for the separation of the two species. Another interesting result was a considerable genetic difference found between populations of C. vittatus from Brazil and the Gulf of Mexico, which may indicate the existence of two homonymous species.

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Fundamental principles of mechanics were primarily conceived for constant mass systems. Since the pioneering works of Meshcherskii (see historical review in Mikhailov (Mech. Solids 10(5):32-40, 1975), efforts have been made in order to elaborate an adequate mathematical formalism for variable mass systems. This is a current research field in theoretical mechanics. In this paper, attention is focused on the derivation of the so-called 'generalized canonical equations of Hamilton' for a variable mass particle. The applied technique consists in the consideration of the mass variation process as a dissipative phenomenon. Kozlov's (Stek. Inst. Math 223:178-184, 1998) method, originally devoted to the derivation of the generalized canonical equations of Hamilton for dissipative systems, is accordingly extended to the scenario of variable mass systems. This is done by conveniently writing the flux of kinetic energy from or into the variable mass particle as a 'Rayleigh-like dissipation function'. Cayley (Proc. R Soc. Lond. 8:506-511, 1857) was the first scholar to propose such an analogy. A deeper discussion on this particular subject will be left for a future paper.

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Por meio do exame do conto "Os amigos dos amigos" ("The friends of the friends"), de Henry James, bem como de seu processo de criação, este trabalho investiga a categoria do duplo confrontando as suas fontes primitivas com sua adoção na narrativa moderna - um confronto que nos permite sugerir uma chave de interpretação para a ficção jamesiana, e ainda discutir a presença do sobrenatural numa sociedade que privilegia o espetáculo, a publicidade, a novidade, o consumo e o progresso.

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[EN] Stommel has been the most important physicist oceanographer of the second half of the XX century. Builder, to a great extent, of the present Dynamical Oceanography. He contributed to the transformation of the Oceanography from a sort of appendix of the studies of the Atmosphere to a new specialty of Geophysics. After graduating in Astronomy in Yale in 1942 he started his research participating in the WWII effort, collaborating together with many other future oceanographers, in support of the USA Navy. Research that was carried out in the Woods Hole Oceanographic Institution (WHOI). Between 1959 and 1978 he was professor of oceanography in Harvard U. first, and later in the Massachusetts Institute of Technology, returning to WHOI where he stayed until his death. Stommel established important and fundamental theories on the ocean global circulation and studied many other oceanographic phenomena. This theoretical activity he combined with not a less important observational one. He received many awards and hhonors, including the Craadford prize, equivalent to the Nobel in Geosciences.