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[Stammbuch F. S. D.]
Full text link[STAMMBUCH F. S. D.]
[Stammbuch F. S. D.] (1)
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Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
Full text linkFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
APC/C and SCFcyclin F Constitute a Reciprocal Feedback Circuit Controlling S-Phase Entry
Full text linkSummaryThe anaphase promoting complex/cyclosome (APC/C) is an ubiquitin ligase and core component of the cell-cycle oscillator. During G1 phase, APC/C binds to its substrate receptor Cdh1 and APC/CCdh1 plays an important role in restricting S-phase entry and maintaining genome integrity. We describe a reciprocal feedback circuit between APC/C and a second ubiquitin ligase, the SCF (Skp1-Cul1-F box). We show that cyclin F, a cell-cycle-regulated substrate receptor (F-box protein) for the SCF, is targeted for degradation by APC/C. Furthermore, we establish that Cdh1 is itself a substrate of SCFcyclin F. Cyclin F loss impairs Cdh1 degradation and delays S-phase entry, and this delay is reversed by simultaneous removal of Cdh1. These data indicate that the coordinated, temporal ordering of cyclin F and Cdh1 degradation, organized in a double-negative feedback loop, represents a fundamental aspect of cell-cycle control. This mutual antagonism could be a feature of other oscillating systems
Marriner S. Eccles, correspondence with Senator Walter F. George
No full textLetter dated 22 March 1954 from Marriner S. Eccles to Walter F. George, U.S. Senator from Georgia, supporting the Senator\u27s effort to reduce taxes as a check to deflation, and a reply from the Senator\u27s office dated 3 April 1954
Marriner S. Eccles, correspondence with Senator Wallace F. Bennett
No full textCorrespondence of Marriner S. Eccles with Wallace F. Bennett, U.S. Senator from Utah. Includes a speech by Senator Bennett entitled, "Labor Unions and Inflation," printed in the Congressional Record, July 21, 1958; a speech by Senator Bennett entitled, "Inflation and the Recession," printed in the Congressional Record, August 5, 1958; and a 16-page typescript of a 1967 speech by Senator Bennett entitled, "World War III, communist style," in which the Senator defends continuing U.S. involvement in the Vietnam War
Holm Oak (Quercus ilex L.) decline in Apulia, Southern Italy, a phytopathological overview.
No full textLucchese P.G., Chiaromonte E., Salamone D., Tarasco E., Pollastro S., Faretra F., Nigro F., 2025 – Holm Oak (Quercus ilex L.) decline in Apulia, Southern Italy, a phytopathological overview. 17th International Congress of Mediterranean Phytopathological Union (MPU). CIHEAM Bari, Italy, July 6-10 202
[Report to W. F. Dyson by W. S. Biggio, April 25, 1967 #1]
No full textReport to Captain W. F. Dyson by W. S. Biggio, Detective. The report states that information was received from a subject who was a close acquaintance of Lee Harvey Oswald and his wife
Precise measurement of the f(s)/f(d) ratio of fragmentation fractions and of B-s(0) decay branching fractions
Full text linkThe ratio of the B-s(0) and B-0 fragmentation fractions, f(s)/f(d), in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision center-of-mass energy from the combined analysis of different B-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum or with a function inspired by Tsallis statistics. Precise measurements of the branching fractions of the B-s(0) -> J/psi phi and B-s(0)-> D-s(-)pi(+) decays are performed, reducing their uncertainty by about a factor of 2 with respect to previous world averages. Numerous B-s(0) decay branching fractions, measured at the LHCb experiment, are also updated using the new values of f(s)/f(d) and branching fractions of normalization channels. These results reduce a major source of systematic uncertainty in several searches for new physics performed through measurements of B-s(0) branching fractions
Letter to Senator Harry F. Byrd from M. S. Eccles, December 22, 1938
No full textScan of a letter dated 22 December 1938 from Marriner S. Eccles, Chairman of the Board of Governors of the Federal Reserve System, to Virginia Senator Harry F. Bird, responding to the senator\u27s speech on 10 December 1938 that "grossly misrepresented" Eccles\u27s views. The letter was issued as a press release on 23 December 1938
Marriner S. Eccles, correspondence with Senator Robert F. Kennedy
No full textCorrespondence of Marriner S. Eccles with Robert F. Kennedy, U.S. Senator from New York. Includes letters between Mr. Eccles and the leaders of a campaign begun in 1967 in support of a Kennedy-Fulbright presidential ticket; a speech given in the Senate on 12 July 1967 by Kennedy introducing a bill for industrial development in urban poverty areas, printed in the Congressional Record; a speech on 25 October 1967 addressing proposed amendments on Social Security and welfare, printed in the Congressional Record on 12 October 1967; a press release dated 14 September 1967 about Kennedy\u27s testimony before the Senate Finance Committee in support of his urban housing development bill; and Mr. Eccles\u27s introduction of Kennedy at a public meeting in Salt Lake City on 27 March 1968
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