M. MacCallum

Learn More
During a given sleep state, respiration changes from periodic to regular and vice-versa. Because such spontaneous changes occur without changes in electro-encephalogram (EEG), electro-oculogram (EOG), electro-cardiogram (ECG) or body movements, we hypothesized that they are induced by chemical stimuli such as CO2. To test this hypothesis we examined 12(More)
To examine the ventilatory response to 100% and 15% O2 during wakefulness and sleep, we studied eleven preterm infants birthweight 1770 +/- 102 g; gestational age 32 +/- 1 weeks; postnatal age 31 +/- 5 days) on two occasions each. Wakefulness (W) was present around feeding time and was defined by open eyes for more than 2 min plus presence of purposeful(More)
Citation Ohlson, Tomas et al. " Improved alignment quality by combining evolutionary information, predicted secondary structure and self-organizing maps. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract Background: Protein sequence alignment is one of the basic tools in(More)
Polysomnographic (sleep) signals are recorded from patients exhibiting symptoms of a suspected sleep disorder such as Obstructive Sleep Apnoea (OSA). These non-stationary signals are characterised by having both quantitative information in the frequency domain and rich, dynamic data in the time domain. The collected data is subsequently analysed by skilled(More)
  • 1