71,771 research outputs found
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst 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)
Prospective multicentre clinical trial of stapled transanal rectal resection for obstructive defaecation syndrome.
No full textProspective multicentre clinical trial of stapled transanal rectal resection for obstructive defaecation syndrome (p.1521-1527) A. Arroyo, F. X. Gonzalez-Argente;, M. Garcia-Domingo, E. Espin-Basany, F. De-la-Portilla, F. Perez-Vicente, R. Calpena Published Online: Oct 21 2008 10:57AM DOI: 10.1002/bjs.6328 Sir, we would like to raise some points on the article by Arroyo et al. on stapled transanal rectal resection (STARR) for obstructive defaecation syndrome (ODS) (1). No psychiatric evaluation was performed, in spite of data showing that 66% of patients with ODS suffer from anxiety or depression (2). The authors operated on 59.1% of patients. This matches with operation rates on constipated patients by others, who also perform STARR, such as 58.1% (3), but contrasts with all the others, who consistently report lower operation rates for constipation, such as 7.3% (4) or 14% (2). Are surgeons who perform STARR, by any chance, over-treating their patients? While the authors state that they referred 75 patients for biofeedback, they did not take into any account, prior to operate on the remaining 104, conservative measures such as colonic irrigation, which has proven successful in a substantial number of constipated patients (5). Indeed, STARR can be effective, but, it is a worryingly invasive and irreversible procedure, bearing a number of complications (6). Sadly, STARR was recently passed off to the general Italian public as a panacea to magically solve a complex condition, such as constipation, ‘with no stitches’ (although, in reality, 56 titanium staples are fired), and ‘without opening’ (7). The authors are to be commended for reporting that in 30-72% of patients with ODS anatomical correction is fruitless (1). For those who consider patients with ODS to suffer more from bowel function than from its anatomy, STARR equals to ‘removing part of a lung to treat asthma or chopping off an arm to treat high blood pressure’ (8). Luigi Basso, Giuseppe Gagliardi*, Mario Pescatori*. University of Rome ‘Sapienza’ 1st Medical School, and * Coloproctology Unit, ‘Ars Medica’ Hospital, Rome, Italy. References 1. Arroyo A, González-Argenté FX, García-Domingo M, Espin-Basany E, De-la-Portilla F, Pérez- Vicente F, Calpena R. Prospective multicentre clinical trial of stapled transanal rectal resection for obstructive defaecation syndrome. Br J Surg 2008; 95: 1521-7. 2. Pescatori M, Spyrou M, Pulvirenti d'Urso A. A prospective evaluation of occult disorders in obstructed defecation using the ¿iceberg diagram¿. Colorectal Dis 2006; 8: 785-9. 3. Boccasanta P, Venturi M, Roviaro G. Stapled transanal rectal resection versus stapled anopexy in the cure of hemorrhoids associated with rectal prolapse. A randomized controlled trial. Int J Colorectal Dis 2007; 22: 245-51. 4. Nyam DC, Pemberton JH, Ilstrup DM, Rath DM. Long-term results of surgery for chronic constipation. Dis Colon Rectum 1997; 40: 273-9. 5. Prospective study of colonic irrigation for the treatment of defaecation disorders. Koch SM, Melenhorst J, van Gemert WG, Baeten CG. Br J Surg 2008; 95: 1273-9. 6. Pescatori M, Gagliardi G. Postoperative complications after procedure for prolapsed hemorrhoids (PPH) and stapled transanal rectal resection (STARR) procedures. Tech Coloproctol 2008; 12: 7-19. 7. Pappagallo M. La giungla dei rimborsi. ‘E io opero in Austria’ [The jungle of reimbursements. ‘Hence, I operate in Austria’]. Corriere della Sera (Milan, Italy). 2008 Sep 8: 11. Italian. 8. Phillips RKS. Invited Commentary. Dis Colon Rectum 2004; 47: 1296
Letter from Carl Hayden to M. J. Riordan
No full textLetter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government
Synchronized permutation tests in I*J designs.
No full textIn this paper we present an extension of the synchronized permutation tests for main factors and interaction introduced by Pesarin [2001. Multivariate Permutation Tests with Applications to Biostatistics. Wiley, Chichester] and Salmaso [2003. Synchronized permutation tests in factorial designs. Comm. Statist. Theory Methods 32, 1419-1437] in the case of a 2k complete factorial design with n replicates. This extension considers the more general case when the main factors can assume, respectively, I and J lelvels. An algorithm to obtain Monte Carlo synchronized permutations is introduced and a comparative simulation study with the parametric ANOVA is reported. We also implemented the nonparametric simultaneous confidence intervals based on syncrhonized permutations for main factor effects. A graphical representation for the simultaneous confidence intervals is suggested and illustrated with some examples from the literature
Rosamunde, Fürstin von Zypern
No full textin Musik gesetzt von Franz SchubertTenore 1mo 1 Seite, Tenore 2do 1 Seite, Basso 1mo 1 Seite, Basso 2do 1 Seite, Corno 1o. in D/Corno 2o. in D/Corno 3o. in D 1 Seite, Trombone 1o./Trombone 2o./Trombone 3o. 1 SeiteVorlageform der Veröffentlichungsangabe: Eigenthum des Verlegers Wien bey M. J. Leidesdorf. ; Preis 36 x./10 gl.Bibliographischer Nachweis: SchubertWV, Seite 499PlattendruckText deutsc
Letter from M. J. Riordan, Arizona Lumber and Timber Company, to Carl Hayden
No full textLetter from M. J. Riordan to Carl Hayden expressing his opposition to the federal government's takeover of Bright Angel Trail
Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
No full textThis 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 Correction: Establishment and equilibrium levels of deleterious mutations in large populations (Scientific Reports, (2019), 9, 1, (10384), 10.1038/s41598-019-46803-7)
No full textThe original version of this Article contained errors. Affiliations 1 and 2 were reversed. Secondly, Affiliation 7 was incorrectly given as ‘Institute for Cellular and Molecular Medicine, Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, 0084, South Africa’. Thirdly, an affiliation was omitted for the author Michael S. Pepper, which is now listed as Affiliation 8. Fourthly, Affiliation 1 was omitted for the author Johan W. Viljoen. Finally, Augustinus J. van Zyl was incorrectly affiliated with ‘Institute for Maternal and Child Health, IRCCS ‘Burlo Garofolo’, Trieste, Italy.’ The correct author affiliations are listed below: Affiliation 1: Department of Electrical, Electronic and Computer Engineering, EBIT, University of Pretoria, Pretoria 0028, South Africa Johan W. Viljoen and J. Pieter de Villiers Affiliation 2: Development, Research and Technology Department, Hensoldt Optronics, Centu..
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe 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
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