24 research outputs found
First observation of the decay and a measurement of the ratio of branching fractions
The first observation of the decay using
data collected by the LHCb detector at a centre-of-mass energy of 7 TeV,
corresponding to an integrated luminosity of 36 pb, is reported. A
signal of events is obtained and the absence of signal is
rejected with a statistical significance of more than nine standard deviations.
The branching fraction is measured relative to
that of : , where the first uncertainty is statistical, the second systematic and
the third is due to the uncertainty on the ratio of the and
hadronisation fractions.Comment: 10 pages, 3 figures, submitted to Phys. Lett. B; ISSN 0370-269
Prompt K_short production in pp collisions at sqrt(s)=0.9 TeV
The production of K_short mesons in pp collisions at a centre-of-mass energy
of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The
luminosity of the analysed sample is determined using a novel technique,
involving measurements of the beam currents, sizes and positions, and is found
to be 6.8 +/- 1.0 microbarn^-1. The differential prompt K_short production
cross-section is measured as a function of the K_short transverse momentum and
rapidity in the region 0 < pT < 1.6 GeV/c and 2.5 < y < 4.0. The data are found
to be in reasonable agreement with previous measurements and generator
expectations.Comment: 6+18 pages, 6 figures, updated author lis
Factors Associated with Revision Surgery after Internal Fixation of Hip Fractures
Background: Femoral neck fractures are associated with high rates of revision surgery after management with internal fixation. Using data from the Fixation using Alternative Implants for the Treatment of Hip fractures (FAITH) trial evaluating methods of internal fixation in patients with femoral neck fractures, we investigated associations between baseline and surgical factors and the need for revision surgery to promote healing, relieve pain, treat infection or improve function over 24 months postsurgery. Additionally, we investigated factors associated with (1) hardware removal and (2) implant exchange from cancellous screws (CS) or sliding hip screw (SHS) to total hip arthroplasty, hemiarthroplasty, or another internal fixation device. Methods: We identified 15 potential factors a priori that may be associated with revision surgery, 7 with hardware removal, and 14 with implant exchange. We used multivariable Cox proportional hazards analyses in our investigation. Results: Factors associated with increased risk of revision surgery included: female sex, [hazard ratio (HR) 1.79, 95% confidence interval (CI) 1.25-2.50; P = 0.001], higher body mass index (fo
SUBCLINICAL INFLAMMATION ON MRI OF HAND AND FOOT OF ACPA-NEGATIVE ARTHRALGIA PATIENTS AT RISK FOR RHEUMATOID ARTHRITIS
Pathophysiology and treatment of rheumatic disease
CHARACTERISING ARTHRALGIA IN THE PRECLINICAL PHASE OF RHEUMATOID ARTHRITIS USING MAGNETIC RESONANCE IMAGING
Pathophysiology and treatment of rheumatic disease
WHEN DOES THE THERAPEUTIC WINDOW OF OPPORTUNITY IN RHEUMATOID ARTHRITIS CLOSE? A STUDY IN TWO EARLY RA COHORTS
Pathophysiology and treatment of rheumatic disease
EXPLORING SYMPTOM DURATION, AUTO ANTIBODIES AND INFLAMMATION IN ORDER TO EXPLAIN THE PREDICTIVE VALUE OF BASELINE EROSIONS FOR FUTURE STRUCTURAL DAMAGE IN RHEUMATOID ARTHRITIS
Imaging- and therapeutic targets in neoplastic and musculoskeletal inflammatory diseas
Dietary quality and lifestyle factors in relation to 10-year mortality in older Europeans - The SENECA study
The single and combined effects of three healthy lifestyle behaviorsânonsmoking, being physically active, and having a high-quality dietâon survival were investigated among older people in the SENECA Study. This European longitudinal study started with baseline measurements in 1988â1989 and lasted until April 30, 1999. The study population consisted of 631 men and 650 women aged 70â75 years from Belgium, Denmark, Italy, The Netherlands, Portugal, Spain, and Switzerland. A lifestyle score was calculated by adding the scores of the lifestyle factors physical activity, dietary quality, and smoking habits. The single lifestyle factors and the lifestyle score were related to mortality. Even at ages 70â75 years, the unhealthy lifestyle behaviors smoking, having a low-quality diet, and being physically inactive were singly related to an increased mortality risk (hazard ratios ranged from 1.2 to 2.1). The risk of death was further increased for all combinations of two unhealthy lifestyle behaviors. Finally, men and women with all three unhealthy lifestyle behaviors had a three- to fourfold increase in mortality risk. These results underscore the importance of a healthy lifestyle, including multiple lifestyle factors, and the maintenance of it with advancing age
REAPPRAISAL OF THE DIAGNOSTIC AND PROGNOSTIC VALUE OF MORNING STIFFNESS IN ARTHRALGIA, EARLY ARTHRITIS AND EARLY RHEUMATOID ARTHRITIS
Pathophysiology and treatment of rheumatic disease