oximetry performed noninvasively, usually on the finger or ear lobe, in which the small increase in absorption of light during the systolic pulse is used to calculate oxygen saturation.Oxygen saturation measurement, SaO Critical care.ximetry performed noninvasively, usually on the finger or ear lobe, in which the small increase in absorption of light during the systolic pulse is used to calculate oxygen saturation.
The baseline for the populationâs percentage of left-handed people is around 10 percent, but in some societies that number is far greater. Among Venezuelaâs Yanomami tribe, about 5 in every 1,000 people are murdered yearlyâand about 23 percent of the population is left-handed. For the Eipo in Indonesia, the murder rate is 3 in 1,000, and theyâre about 27 percent left-handed. And then there are the people of Jimi Valley in Papua New Guinea, who have a murder rate of 5.4 in 1,000 and an above-average instance of left-handed people at 13 percent.
Most people think of left-handedness as a genetic thing, and while there is a link, new evidence indicates left-handedness may often be the result of developmental glitches. This, in turn, may make lefties more susceptible to some mental disorders, as well as being accident-prone.hile around one in ten people are left-handed, the study, published in this month's edition of the journal SAGE Open, found that four in ten of those with schizophrenic illnesses are lefties. That level of over-representation means that they appear to be four times more likely than right-handers to develop the illness.