An electrocardiogram (ECG, EKG) that records the electrical activity in the heart may be used to check for heart rhythm abnormalities, such as long QT syndrome, in children who have had a pallid breath holding spell.
However, because long QT syndrome is so serious, some physicians recommend that all children with breath holding spells have a baseline EKG.
Long QT syndrome has a medical test that can be done with ECG, but it's unclear how science plans to use this information to prevent SIDS.
The current version (1.0.21) was developed in C++ and QT frameworks, which made it compatible with Windows, Mac OS X, and Linux users.
Long QT can't explain all incidences of SIDS, but one study found that around one in ten babies who die of SIDS had this heart defect.
The relation then between the work expended and the actual cooling work performed denotes the efficiency of the process, and this is expressed by Qt/(Q2-Q1); but as in a perfect refrigerating machine it is understood that the whole of the heat Q i is taken in at the absolute temperature T 11 and the whole of the heat Q2, is rejected at the absolute temperature T2, the heat quantities are proportional to the temperatures, and the expression T,/(T 2 -T,) gives the ideal coefficient of performance for any stated temperature range, whatever working substance is used.
This 'meet me on the QT out in the woods' bothers me.
The same method applies for tangential areas, by taking A -2 PTp -}- QT 4 + RT r + ..
Sochnee, Catalogue des actes d'Henri I QT (1907); de Caiz de Saint Aymour, Anne de Russie, reine de France (1896); E.
Then since XS and QT are parallel and FIG.