of 174 respondents and acceptance of males in the nursing profession by multiple regression analysis has indicated that only two of the variables, namely, respondents' educational level and sex, significantly predict the attitudes toward male nurses (Laroche and Livneh, 1983).
I have always used by end of business which normally means by 5pm. I think that it depends on who you are sending the email to. If it is a superior you might want to reconsider and define an exact time deadline. If it is to a subordinate giving a general time frame like end of today or end of the day would be fine. share|improve this answer.
Cutoff dates are deadlines schools use to determine who can enter the next kindergarten class. Your child must reach the age of 5 by the cutoff date, which is usually around September 1 in most school districts, though some states have later or earlier cutoffs or no deadline at all.