In a scheme that we have titled 'Barbican Without Walls' the LSO, Royal Shakespeare Company and the Barbican staff would on four occasions each year take up residence in a London borough otherwise poorly served by the arts.
Faecal droppings of impalas were collected over a three week-period on three occasions each year: in the wet season (late March - early April), and at the beginning (July) and end (October) of the dry season.
We studied the mutational burden in the skeletal muscle of one subject on two occasions 10 years apart.
Physiotherapists supervised most of the in-person meetings, and a dietician provided further diet counselling on three occasions, once each year during the follow-up period.
Further, the authors collected peripheral blood on two occasions 1 year apart and found associations only with the second but not the first blood sample.
The levels of aromatic DNA adducts have been determined by the 32P-postlabeling assay in samples collected on two occasions, 1 year apart.
Three-hundred and twenty-seven high school students completed a questionnaire that measured social identification with the school, Big Five personality traits and group functioning factors on two occasions approximately one year apart.
Participants wore an Actiwatch-16 wrist activity monitor (Mini-Mitter Inc, Bend, OR) for 3 days on two occasions approximately 1 year apart between 2003 and 2005.
Those people filled out questionnaires on their eating patterns on two occasions, six years apart.
We studied auditory development using auditory event-related potentials (ERPs) elicited by tones in 105 children on two occasions two years apart.
Among never-smoking, non-overweight women without postmenopausal hormonal use, those who had a Cd intake above the median on two occasions 10 years apart had an RR of 2.9 (95% CI: 1.05, 7.79) for endometrial cancer (Åkesson et al. 2008).
