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On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from 35 to 250 Hz with a peak gravitational-wave strain of 1.0×10(-21). It matches the waveform predicted by general relativity for the(More)
BACKGROUND Studies of urban-rural differences in prevalence of non-psychotic mental disorder have not given consistent findings. Such differences have received relatively little study in Great Britain. METHODS Data from 9777 subjects in the Household Survey of the National Morbidity Survey of Great Britain were analysed for differences between urban,(More)
BACKGROUND Long-term studies of severe depression have described high rates of non-recovery, recurrence, chronic incapacity and mortality. A more recent cohort was followed-up to ascertain whether the course had improved given developments in pharmacological and psychological treatments in the last 15 years. METHOD Subjects from a cohort of 70 mainly(More)
BACKGROUND About 30% of psychiatric out-patients with major depression demonstrate partial remission. AIMS To explore whether the addition of cognitive therapy (CT) had any differential effect on residual symptoms or social adjustment. METHOD Patients with residual symptoms of major depression (n=158) were randomised to receive clinical management (CM)(More)
Sixteen children underwent 18 operations for radical resection of chiasmatic-hypothalamic tumors. The clinical presentation correlated with age: infants under 1 year of age presented with macrocephaly, failure to thrive, and severe visual failure; children aged 1 to 5 years predominantly had precocious puberty with mild visual deficits; and older children(More)
The Laser Interferometer Gravitational-Wave Observatory has performed a third science run with much improved sensitivities of all three interferometers. We present an analysis of approximately 200 hours of data acquired during this run, used to search for a stochastic background of gravitational radiation. We place upper bounds on the energy density stored(More)
We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initially identified within 70 s by an online matched-filter(More)