231,338 research outputs found

    Using SU(3) Relations to bound the CP Asymmetries in B→KKKB \to KKK decays

    Full text link
    We consider three body Δs=1\Delta s = 1 B→fB \to f decays with f=KKKf=KKK. The deviations of −ηfSf-\eta_f S_f from SψKSS_{\psi K_S} and of CfC_f from zero can be bounded using the approximate SU(3) flavor symmetry of the strong interactions and branching ratios of various Δs=0\Delta s = 0 modes. We present the most promising SU(3) amplitude relations that can be used to obtain these bounds.Comment: 14 pages, revtex

    The once-daily fixed-dose combination of olodaterol and tiotropium in the management of COPD : current evidence and future prospects

    Get PDF
    Long-acting bronchodilators are the cornerstone of pharmacologic treatment of chronic obstructive pulmonary disease (COPD). Spiolto (R) or Stiolto (R) is a fixed-dose combination (FDC) containing two long-acting bronchodilators, the long-acting muscarinic receptor antagonist tiotropium (TIO) and the long-acting beta 2-adrenoceptor agonist olodaterol (OLO), formulated in the Respimat (R) Soft Mist (TM) inhaler. A total of 13 large, multicentre studies of up to 52 weeks' duration have documented its efficacy in more than 15,000 patients with COPD. TIO/OLO 5/5 mu g FDC significantly increases pulmonary function compared with placebo and its respective constituent mono-components TIO 5 mu g and OLO 5 mu g. TIO/OLO 5/5 mu g also results in statistically and clinically significant improvements in patient-reported outcomes, such as dyspnoea, use of rescue medication, and health status. Addition of OLO 5 mu g to TIO 5 mu g reduces the rate of moderate-to-severe exacerbations by approximately 10%. Compared with placebo and TIO 5 mu g, TIO/OLO 5/5 mu g significantly improves exercise capacity (e.g. endurance time) and physical activity, the latter increase being reached by a unique combination behavioural modification intervention, dual bronchodilatation and exercise training. Overall, the likelihood for patients to experience a clinically significant benefit is higher with TIO/OLO 5/5 mu g than with its constituent mono-components, which usually yield smaller improvements which do not always reach statistical significance, compared with baseline or placebo. This supports the early introduction of TIO/OLO 5/5 mu g in the management of patients with symptomatic COPD

    Efficacy of tiotropium-olodaterol fixed-dose combination in COPD

    Get PDF
    Tiotropium-olodaterol, formulated in the Respimat soft-mist inhaler, is an inhaled fixed-dose combination (FDC) of a long-acting muscarinic antagonist (LAMA) and a long-acting beta(2)-agonist (LABA), commercialized under the name of Spiolto or Stiolto. The efficacy of tiotropium-olodaterol 5-5 mu g once daily in adult patients with COPD was documented in eleven large, multicenter trials of up to 52 weeks duration. Tiotropium-olodaterol 5-5 mu g not only improved spirometric values to a significantly greater extent than placebo but also resulted in statistically significant beneficial effects on dyspnea, markers of hyperinflation, use of rescue medication, health-related quality of life, and exercise endurance. Improvements exceeded the minimal clinically important difference (MCID) for forced expiratory volume in 1 second (FEV1), dyspnea, and quality of life. Differences between tiotropium-olodaterol 5-5 mu g and the respective monocomponents were statistically significant for FEV1, dyspnea, markers of hyperinflation, use of rescue medication, and health-related quality of life, but did not reach the MCID. However, dual bronchodilatation significantly increased the number of patients who exceeded the MCID for dyspnea and quality of life. Moreover, tiotropium-olodaterol 5-5 mu g was significantly more effective than salmeterol-fluticasone (FDC) twice daily at improving pulmonary function. Differences between tiotropium-olodaterol and other LAMA/LABA FDCs were not observed for FEV1 or other efficacy markers. Therefore, tiotropium-olodaterol is a valuable option in the treatment of COPD patients who remain symptomatic under monotherapy

    Synchronization in model networks of class I neurons

    Get PDF
    We study a modification of the Hoppensteadt-Izhikevich canonical model for networks of class I neurons, in which the 'pulse' emitted by a neuron is smooth rather than a delta-function. We prove two types of results about synchronization and desynchronization of such networks, the first type pertaining to 'pulse' functions which are symmetric, and the other type in the regime in which each neuron is connected to many other neurons

    SAFE MANAGEMENT OR DISRUPTIVE CHANGE?

    Get PDF
    Change is imperative for organizations which will remain thriving but its necessity is not always neatly perceived by those who are immersed into the daily activity; indeed, the cycle duration of change often lasts much longer than the time you practise in the same organization. To be more clear-sighted, you have to look the situation with enough loftiness and even some "obliquity". This states the problem of managing those organizations: on one hand, you have to ensure safe management as in performance-driven ones, on the other hand, you have to facilitate innovation as in adaptation-driven ones.The difficulty of this exercise lies in the difference between the two kinds of governance required
    • …
    corecore