79,624 research outputs found

    Letter from P. C. Brooks to Alden Partridge, 5 October 1822

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    P. C. Brooks writes from Boston, Massachusetts, to Alden Partridge at the American Literary, Scientific, and Military Academy in Norwich, Vermont; he is thinking about placing his son at the Academy but has many questions.Transcription by Raymond Bouchard. Transcriptio

    Brooks Hays with President Eisenhower and other members of the Kestnbaum Commission

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    Brooks Hays' handwritten identification of group photograph of Brooks Hays and other members of the Kestnbaum Commission (Commission on Intergovernmental Relations) including President EisenhowerMeeting fo the Kestnbaum Com [Commission] with Pres [President] June 28 1955 L to R Gov [Governor] Thornton [Daniel “Dan” I.J. Thornton of Colorado] Geo [George ]Benson BH [Brooks Hays] Hugh Ells [name undetermined] Lyle Belsley Dr. Bigge Bill [name undetermined] Mrs. Leopold [Alice K. Leopold] Gov [Govenor] Jones [Sam H. Jones of Louisiana] Mayor Henderson [Charles P. Henderson of Youngstown, Ohio] Dolliver [Representative James I. Dolliver of Iowa] Ostertag [Representative Harold C. Ostertag of New York] Humphrey [Senator Hubert H. Humphrey of Minnesota] Gov [Governor] Battle [John S. Battle of Virginia] Butler [Senator John Marshall Butler of Maryland] Kestnbaum [Meyer Kestnbaum] The Pres [Dwight Eisenhower

    Brooks Arcade p.2

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    Exterior of Brooks Arcade, c. 1950-51

    Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV

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    The prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region

    Karl Brooks, C&P, installing Centrex phone system in Smith Hall, July 1969

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    Karl Brooks, C&P Telephone, installing the Centrex phone system in Smith Hall, July 1969, b&w. Article attached state the phone system was installed July thru October 1969.https://mds.marshall.edu/parthenon_photo_morgue/1705/thumbnail.jp

    Probing the microstructure of protein and polyamide fibres

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    The chemical, structural and physical properties of a range of proteinaceous and polyamide fibres, including silk, wool, nylon and various modern and historic regenerated proteins, have been assessed. The chemistry and microstructure of both pristine and artificially aged specimens of the fibres have been investigated using conventional and polarised infrared spectroscopy. Correlations have been drawn between these results and data derived from mechanical testing, demonstrating that the nature and state of such materials can be adequately characterised by analytical methods requiring minimal intervention. This will be of value in exploring the history and informing the identification, conservation, display and storage of artefacts containing these fibres

    Quantitative and functional differences in CD8+ lymphocyte responses in resolved acute and chronic hepatitis C virus infection

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    CD8+ T lymphocyte responses are important in the clearance of viral infections. In chronic infections they may contribute to pathogenesis. To investigate the role of CD8+ T lymphocyte responses in viral clearance and chronic hepatitis C we have compared hepatitis C virus (HCV) specific cytotoxicity and interferon-gamma (IFN-?) production in patients with resolved-acute, and chronic HCV infection. CD8+ T cell responses to a panel of 13 HCV T cell peptide epitopes were studied using Elispot assays of IFN-? production and chromium release cytotoxicity assays. Responses of seven patients with resolved acute HCV infection were compared with those of 14 chronically infected patients. HCV-specific cytotoxicity differentiated the two populations of patients. The majority (71%) of patients with resolved acute infection tested positive to 42% of relevant peptides compared with the minority (28%) of patients with chronic hepatitis C (P=0.03) who responded to only 8% of relevant peptides (P=0.0009). In contrast, HCV-specific IFN-? production was detected in 86% of patients with either resolved or chronic infection in response to 42% and 35%, respectively, of relevant peptides tested (not significant). In patients with chronic infection the magnitude of the HCV-specific IFN-? production was inversely correlated to viral load (R2=0.52; P=0.042). Failure to clear HCV infection may be attributable to the presence of noncytolytic IFN-? producing CD8+ T lymphocytes in chronically infected patients. However these CD8+ T cells may play a beneficial role in contributing to the control of viral load in chronic hepatitis C
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