Now showing items 1-10 of 17
Discovery of very high energy gamma rays from pks 1424+240 and multiwavelength constraints on its redshift
(IOP Publishing, 2009-12-18)
We report the first detection of very high energy(83) (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140 GeV measured by VERITAS is well described ...
Radio imaging of the very-high-energy -ray emission region in the central engine of a radio galaxy
(American Association for the Advancement of Science (AAAS), 2009-07-02)
The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10(12) electron ...
Simultaneous multiwavelength observations of markarian 421 during outburst
(IOP Publishing, 2009-08-26)
We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X-ray data using the XMM-Newton satellite, ...
Effect of tailored practice and patient care plans on secondary prevention of heart disease in general practice: cluster randomised controlled trial
Objective To test the effectiveness of a complex intervention designed, within a theoretical framework, to improve outcomes for patients with coronary heart disease. Design Cluster randomised controlled multicentre ...
A multiwavelength view of the tev blazar markarian 421: correlated variability, flaring, and spectral evolution
(IOP Publishing, 2005-09-01)
We report results from an intensive multiwavelength monitoring campaign on the TeV blazar Mrk 421 over the period of 2003 - 2004. The source was observed simultaneously at TeV energies with the Whipple 10 m telescope and ...
Multiwavelength observations of 1es 1959+650, 1 year after the strong outburst of 2002
(IOP Publishing, 2006-06-20)
In 2003 April-May, the blazar 1ES 1959+650 showed an increased level of X-ray activity. This prompted a multiwavelength observation campaign with the Whipple 10 m gamma-ray telescope, the Rossi X-Ray Timing Explorer, the ...
Lewis antigen expression and other pathogenic factors in the presence of atrophic chronic gastritis in a european population
(Oxford University Press (OUP), 2002-02-15)
To study the relationship between Helicobacter pylori cagA and vacA status and the expression of Lewis (Le) antigens and between these characteristics and atrophic chronic gastritis (ACG), H. pylori infection was assessed ...
Occupational predictors of pregnancy outcomes in irish working women in the lifeways cohort
The objective of this study was to explore the association between occupational factors and pregnancy outcomes in a prospective cohort of Irish pregnant women. This study has a prospective design. The Lifeways cohort ...
The health behaviour in school-aged children (hbsc) study: methodological developments and current tensions
(Springer Nature, 2009-07-30)
Objectives: To describe the methodological development of the HBSC survey since its inception and explore methodological tensions that need to be addressed in the ongoing work on this and other large-scale cross-national ...
Antidepressant medications and other treatments of depressive disorders: a cinp task force report – a reply to belmaker
(Oxford University Press (OUP), 2008-04-18)