89,005 research outputs found
Evaluation of the sums
No full textsummary:The convolution sum is evaluated for and all . This completes the partial evaluation given in the paper of J. G. Huard, Z. M. Ou, B. K. Spearman, K. S. Williams
Measurement of the isospin asymmetry in B -> K(*) mu+mu- decays
No full textThe isospin asymmetries of B → K (∗) μ + μ − decays and the partial branching fractions of B 0 → K 0 μ + μ − and B + → K ∗+ μ + μ − are measured as a function of the di-muon mass squared q 2 using an integrated luminosity of 1.0 fb−1 collected with the LHCb detector. The B → Kμ + μ − isospin asymmetry integrated over q 2 is negative, deviating from zero with over 4 σ significance. The B → K ∗ μ + μ − decay measurements are consistent with the Standard Model prediction of negligible isospin asymmetry. The observation of the decay B 0 → K S μ + μ − is reported with 5.7 σ significance. Assuming that the branching fraction of B 0 → K 0 μ + μ − is twice that of B 0 → K S μ + μ −, the branching fractions of B 0 → K 0 μ + μ − and B → K ∗+ μ + μ − are found to be (0.31−0.06) × 10−6 and (1.16 ± 0.19) × 10−6, respectively
Decisions made on scant information: overview
No full textThis chapter brings an overview to an edited book that looks at how decisions can be made at the front-end of major projects, in circumstances where information is usually scant. The book examines how projects can be successfully aligned with the desired direction; how sufficient, appropriate and valid information can be gathered at the front-end; how information can be analysed; and finally how decisions can be made. Each chapter of the book is written by an expert in the field, and each chapter speaks for itself. However, some key themes run throughout the book. These include the need for alignment between organisational strategy and the project concept; dealing with complexity, in particular the systemicity and interrelatedness within project decisions; consideration of the ambiguity implicit in all major projects; taking into account psychological and political biases within estimation of benefits and costs; consideration of the social geography and politics within decision-making groups; and preparation for the turbulence within the project environment, including the maintenance of strategic alignment
The development of metaphorical language comprehension in typical development and in Williams syndrome
No full textThe domain of figurative language comprehension was used to probe the developmental relation between language and cognition in typically developing individuals and individuals with Williams syndrome. Extending the work of Vosniadou and Ortony, the emergence of nonliteral similarity and category knowledge was investigated in 117 typically developing children between 4 and 12 years of age, 19 typically developing adults, 15 children with Williams syndrome between 5 and 12 years of age, and 8 adults with Williams syndrome. Participants were required to complete similarity and categorization statements by selecting one of two words (e.g., either “The sun is like ___” or “The sun is the same kind of thing as ___”) with word pairs formed from items that were literally, perceptually, or functionally similar to the target word or else anomalous (e.g., moon, orange, oven, or chair, respectively). Results indicated that individuals with Williams syndrome may access different, less abstract knowledge in figurative language comparisons despite the relatively strong verbal abilities found in this disorder
In Memoriam: Joseph M. Williams
No full textProfessor Chris Rideout pays tribute to Joseph M. Williams, 1933-2008, Professor Emeritus, University of Chicago and author of Style: Ten Lessons in Clarity and Grace, among other highly influential works. Professor Rideout shows his appreciation for Williams\u27 generous support and many contributions to the world of writing instruction, especially legal writing
A comparison of the chemical analyses of cell lipids with their complete proton NMR spectrum
No full textWhole cells are made up of molecules in different environments to which NMR spectroscopy is sensitive. In particular, malignant and transformed cells contain lipids not only in bilayers but in isotropically tumbling domains which give rise to high-resolution spectra. We have recently developed a technique for simultaneously analyzing broadline and high-resolution signals (M. Bloom, K. T. Holmes, C. E. Mountford, and P. G. Williams, <i>J. Magn. Reson</i>., in press) and we report here its application to a range of rat, mouse, and human cell lines. Some selected features of the NMR spectra were compared with the chemical analysis of the whole-cell lipid. We found that in general the proportion of protons in the narrow methylene resonance at 1.3 ppm increased with the neutral lipid content of the cells. This peak was chosen because its <i>T<sub>2</sub></i> relaxation behavior correlates with metastatic potential in a rat model system. This new technique could be applied to other high-resolution components both in healthy and in diseased states
R. Williams letter to Mrs. Susan M.Weirman, July 21, 1896
No full textResponse letter from R. Williams to Susan M. Wierman [sometimes spelled Weirman] following up on a visit from photographer M. Wooley, presumably to snap photographs of Susan and the Lundy home to accompany Williams' biographical essay on Lundy. Williams sends along Wooley's letters and requests additional information from Ms. Wierman about the life and times of some meeting houses significant in the life and times of her father, anti-slavery activist and abolitionist periodical publisher Benjamin Lundy. Benjamin Lundy (1789-1839) was a prominent Quaker abolitionist best known for his development of abolitionist periodicals. His Genius of Universal Emancipation was first published in 1821 from his home in Mt. Pleasant, Ohio, and enjoyed a wide circulation across the antebellum United States. In the 1820s, the young William Lloyd Garrison came to work for The Genius. Benjamin Lundy traveled widely seeking subscriptions to The Genius, giving talks about the anti-slavery movement, and observing and documenting the conditions of enslaved people across the Americas. He was also involved in the establishment of freed slave colonies in Mexico
R. Williams letter to Mrs. Susan M.Weirman, September 9, 1895
No full textShort note from Lundy biographer R. Williams to Mrs. Susan M. Wierman (here, "Wiederman") concerning Williams' proposed return visits to Wierman's home in Clear Creek, Illinois. Williams explains that he had intended to visit with a "Col. Plumb"; but Plumb is elderly and had fallen ill. Williams proposes hoping to visit solo in months to come, and asks after the dates of the local Friends Quarterly Meeting. Benjamin Lundy (1789-1839) was a prominent Quaker abolitionist best known for his development of abolitionist periodicals. His Genius of Universal Emancipation was first published in 1821 from his home in Mt. Pleasant, Ohio, and enjoyed a wide circulation across the antebellum United States. In the 1820s, the young William Lloyd Garrison came to work for The Genius. Benjamin Lundy traveled widely seeking subscriptions to The Genius, giving talks about the anti-slavery movement, and observing and documenting the conditions of enslaved people across the Americas. He was also involved in the establishment of freed slave colonies in Mexico
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
- …
