Sometimes surnames were created from the father's forename (known as patronymic). 1  Peter has a son called John. John's surname becomes Peterson (Peter's son). 2  Ruairidh has a son called DÃ²mhnall. DÃ²mhnall's surname becomes MacRuairidh, or MacRury (mac Ruairidh).
Mandel Ngan/AFP/Getty Images. There are a few appropriate responses to the news, broken by US Weekly on Wednesday, that Donald and Melania Trump allegedly sleep in separate bedrooms.
Biphasic sleep (or diphasic, bimodal or bifurcated sleep) is the practice of sleeping during two periods over 24 hours, while polyphasic sleep refers to sleeping multiple times â usually more than two.[1] Each of these is in contrast to monophasic sleep, which is one period of sleep over 24 hours. Segmented sleep and divided sleep may refer to polyphasic or biphasic sleep, but may also refer to interrupted sleep, where the sleep has one or several shorter periods of wakefulness.