1,193 research outputs found

    Safety and physiological effects of two different doses of elosulfase alfa in patients with morquio a syndrome: A randomized, double-blind, pilot study.

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    The primary treatment outcomes of a phase 2, randomized, double-blind, pilot study evaluating safety, physiological, and pharmacological effects of elosulfase alfa in patients with Morquio A syndrome are herewith presented. Patients aged ≄7 years and able to walk ≄200 m in the 6-min walk test (6MWT) were randomized to elosulfase alfa 2.0 or 4.0 mg/kg/week for 27 weeks. The primary objective was to evaluate the safety of both doses. Secondary objectives were to evaluate effects on endurance (6MWT and 3-min stair climb test [3MSCT]), exercise capacity (cardio-pulmonary exercise test [CPET]), respiratory function, muscle strength, cardiac function, pain, and urine keratan sulfate (uKS) levels, and to determine pharmacokinetic parameters. Twenty-five patients were enrolled (15 randomized to 2.0 mg/kg/week and 10 to 4.0 mg/kg/week). No new or unexpected safety signals were observed. After 24 weeks, there were no improvements versus baseline in the 6MWT, yet numerical improvements were seen in the 3MSCT with 4.0 mg/kg/week. uKS and pharmacokinetic data suggested no linear relationship over the 2.0-4.0 mg/kg dose range. Overall, an abnormal exercise capacity (evaluated in 10 and 5 patients in the 2.0 and 4.0 mg/kg/week groups, respectively), impaired muscle strength, and considerable pain were observed at baseline, and there were trends towards improvements in all domains after treatment. In conclusion, preliminary data of this small study in a Morquio A population with relatively good endurance confirmed the acceptable safety profile of elosulfase alfa and showed a trend of increased exercise capacity and muscle strength and decreased pain

    Constructing masculinities in the National Rugby League's footy show

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    The research uses content analysis and inclusive masculinity theory in order to explore and explain the construction of esteemed and subjugated masculinities within the context of Australia’s National Rugby League’s (NRL) Footy Show. Results suggest that despite previous research on NRL players, which finds inclusive masculinities dominate, this television show instead attempts to construct orthodox versions of masculinity. We suggest that the Footy Show thus occupies a liminal state in regards to masculinities; attempting to portray, construct and endorse orthodox masculinities, whilst showcasing athletes that more closely align with the social trends of inclusive masculinities

    Experimental investigation of the transition between Autler-Townes splitting and electromagnetically-induced-transparency models

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    Two phenomena can affect the transmission of a probe field through an absorbing medium in the presence of an additional field: electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS). Being able to discriminate between the two i

    Positive youth development in swimming: clarification and consensus of key psychosocial assets

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    The purpose of this study was to gain a more cohesive understanding of the assets considered necessary to develop in young swimmers to ensure both individual and sport specific development. This two stage study involved (a) a content analysis of key papers to develop a list of both psychosocial skills for performance enhancement and assets associated with positive youth development, and (b) in-depth interviews involving ten expert swim coaches, practitioners and youth sport scholars. Five higher order categories containing seventeen individual assets emerged. These results are discussed in relation to both existing models of positive youth development and implications for coaches, practitioners and parents when considering the psychosocial development of young British swimmers

    Autonomic dysreflexia and boosting in disability sport: exploring the subjective meanings, management strategies, moral justifications, and perceptions of risk among male, spinal cord injured, wheelchair athletes.

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    ABSTRACT Autonomic dysreflexia (AD) is a potentially life-threatening condition unique to individuals with spinal cord injury above the sixth thoracic spinal level. When this condition is induced by spinal cord injured athletes to enhance performance it is known as boosting. Given that little is known about this practice from the perspectives of the athletes themselves, we draw upon interview data with a sample of male, spinal cord injured, wheelchair athletes to explore their experiences of AD and boosting in relation to how they perceive and negotiate the fine line between the latter two conditions; how they experience positive benefits and manage unpredictability; how they conceptualize risk; and their moral justifications for boosting. Our thematic analysis suggests that our participants understand boosting via a process of experiential learn- ing that involves them operating as ethnophysiologists within a boostogenic environment that can foster moral disengagement and encourage athletes to take dangerous health risks. The implications for policy and practice are considered

    Measurement of the CKM angle Îł from a combination of B±→Dh± analyses

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    A combination of three LHCb measurements of the CKM angle Îł is presented. The decays B±→D K± and B±→Dπ± are used, where D denotes an admixture of D0 and D0 mesons, decaying into K+K−, π+π−, K±π∓, K±π∓π±π∓, K0Sπ+π−, or K0S K+K− ïŹnal states. All measurements use a dataset corresponding to 1.0 fb−1 of integrated luminosity. Combining results from B±→D K± decays alone a best-ïŹt value of Îł =72.0◩ is found, and conïŹdence intervals are set Îł ∈ [56.4,86.7]◩ at 68% CL, Îł ∈ [42.6,99.6]◩ at 95% CL. The best-ïŹt value of Îł found from a combination of results from B±→Dπ± decays alone, is Îł =18.9◩, and the conïŹdence intervals Îł ∈ [7.4,99.2]◩ âˆȘ [167.9,176.4]◩ at 68% CL are set, without constraint at 95% CL. The combination of results from B± → D K± and B± → Dπ± decays gives a best-ïŹt value of Îł =72.6◩ and the conïŹdence intervals Îł ∈ [55.4,82.3]◩ at 68% CL, Îł ∈ [40.2,92.7]◩ at 95% CL are set. All values are expressed modulo 180◩, and are obtained taking into account the effect of D0–D0 mixing

    Measurement of the ratio of branching fractions BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma)

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    The ratio of branching fractions of the radiative B decays B0 -> K*0 gamma and Bs0 -> phi gamma has been measured using 0.37 fb-1 of pp collisions at a centre of mass energy of sqrt(s) = 7 TeV, collected by the LHCb experiment. The value obtained is BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma) = 1.12 +/- 0.08 ^{+0.06}_{-0.04} ^{+0.09}_{-0.08}, where the first uncertainty is statistical, the second systematic and the third is associated to the ratio of fragmentation fractions fs/fd. Using the world average for BR(B0 -> K*0 gamma) = (4.33 +/- 0.15) x 10^{-5}, the branching fraction BR(Bs0 -> phi gamma) is measured to be (3.9 +/- 0.5) x 10^{-5}, which is the most precise measurement to date.Comment: 15 pages, 1 figure, 2 table

    Differential branching fraction and angular analysis of the decay B0→K∗0ÎŒ+Ό−

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    The angular distribution and differential branching fraction of the decay B 0→ K ∗0 ÎŒ + ÎŒ − are studied using a data sample, collected by the LHCb experiment in pp collisions at s√=7 TeV, corresponding to an integrated luminosity of 1.0 fb−1. Several angular observables are measured in bins of the dimuon invariant mass squared, q 2. A first measurement of the zero-crossing point of the forward-backward asymmetry of the dimuon system is also presented. The zero-crossing point is measured to be q20=4.9±0.9GeV2/c4 , where the uncertainty is the sum of statistical and systematic uncertainties. The results are consistent with the Standard Model predictions
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