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spec: The subtle nature of many of the phenomena that Kervin is trying to isolate means that conventional surveying techniques require special measures . The group tested 15 healthy young adults performing six types of sit-ups : partial sit-ups ( also called crunches , lifting the shoulders about six inches from a supine position ) on the floor ; full sit-ups ( rising to a full lateral position ) with knees bent at a 90-degree angle on the floor ; crunches using an exercise ball with no assistance ; full sit-ups using an exercise ball with no assistance ; crunches using a ball held steady by an assistant ; and full sit-ups using a ball held steady by an assistant . In this solution two principles could not be sacrificed : the principles of science and of meaning . It may be appropriate for a fund , subject to the approval of its board of directors , to use other independent pricing services for these purposes . Over seven hundred young Israeli women are currently pursuing advanced religious studies in this program . We must do more to help : the $ 1billion people who live on less than $ 1 a day ; the 40 million people living with HIV ; the 115 million young children who do n't attend school ; the half a million women who die each year during pregnancy of childbirth ; and the 42 % of Africans who do n't have access to safe water . The laborers were obviously of the household : two were young men in cotton-print shirts and caps , the two others were hired laborers in homespun shirts , one an old man , the other a young fellow . In early 1856 , Young launched the Reformation , a campaign to arouse religious consciousness . Rossini and colleagues used a technique called paired-pulse transcranial magnetic stimulation to investigate cortical excitability in 15 healthy young male volunteers . I never would have dared such an approach , but their creative teaching showed me how much I could still learn beyond the textbook .