46,433 research outputs found

    Dissecting action sports studies: Past, present, and beyond

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    The term “action sports” broadly refers to a wide range of mostly individualized activities such as BMX, kite-surfing, skateboarding, surfing, and snowboarding that differed – at least in their early phases of development – from traditional rule-bound, competitive, regulated Western “achievement” sport cultures ( Booth and Thorpe, 2007 ; Kusz, 2007a ; Wheaton 2004, 2010 ). Various categorizations have been used to describe these activities, including extreme, lifestyle, and alternative sports. In this chapter, however, the term action sports is used as it is currently the preferred term among committed participants and industry members in North America and Australasia (many of whom reject the overly commercialized “extreme” moniker imposed upon them by transnational media and mainstream sponsors during the mid- and late 1990s). Many action sports gained popularity during the new leisure trends of the 1960s and 1970s and increasingly attracted alternative youth, who appropriated these activities and infused them with a set of hedonistic and carefree philosophies and subcultural styles ( Booth and Thorpe, 2007 ; Thorpe and Wheaton, 2011a ; Wheaton, 2010 )

    Edith Brooks, Mrs. H. Church, and Mrs. J. E. S. Thorpe at Solitude

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    This 1941 image of Edith Lorraine Wilmoth Brooks, Mrs. H. Church, and Mrs. J. E. S. Thorpe at the Stearns’ home, Solitude, is part of the Stearns-Grueninger collection. Irving Kip Stearns (1895-1942) was president of Carolina Wood Turning Company from 1928 until his death in 1942. Stearns’ grandfather, Jeremiah Shank, started the company in 1903 as Bryson City Pump Works and it grew to be a thriving industry for the community. In 1911, Stearns was in the first graduating class of Bryson City High School. He had one son, Joseph Pease Stearns (1917-1948). In 1935, I. K. married Betty Grueninger (1896-1971)

    Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′

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    First 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)

    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

    Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays

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    This Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±0.04(syst) and CJ/ψK0S=0.03±0.09(stat)±0.01(syst). Both values are consistent with the current world averages and within expectations from the Standard Model

    Author response to second letter to the editor, <i>J. Air Waste Manage. Assoc</i>. 65: 245–246

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    Author response to second letter to the editor, <i>J. Air Waste Manage. Assoc</i>. 65: 245–24

    Covalence dans les structures élémentaires et les composés AB. I. Théorème de Leman, Thorpe et Weaire

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    In the framework of the simple Hückel model for σ bonds, Leman, Thorpe and Weaire's theorem on the existence of a forbidden energy gap is obtained directly and extended to structures with dangling bonds. The results are valid in other cases of covalent bonding, with one atomic orbital per bond.Dans le cadre du modèle de Hückel pour les liaisons σ, on obtient de façon directe le théorème de Leman, Thorpe et Weaire sur l'existence d'une bande interdite, et on l'étend aux structures possédant des liaisons non saturées. Ces résultats sont valables dans d'autres cas de liaisons covalentes mettant en jeu une orbitale atomique par liaison

    To Act and Learn: A Bakhtinian Exploration of Action Learning

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    This paper considers the work of the Russian social philosopher and cultural theorist, Mikhail Mikhailovich Bakhtin as a source of understanding for those involved in action learning. Drawing upon data gathered over two years during the evaluation of 20 action learning sets in the north of England, we will seek to work with the ideas of Bakhtin to consider their value for those involved in action learning. We consider key Bakhtin features such as Making Meaning, Participative Thinking, Theoreticism and Presence, Others and Outsideness, Voices and Carnival to highlight how Bakhtin's can enhance our understanding of the nature of action and learning
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