Alert is the northernmost permanent settlement in the world. It is located at 82°28′N, 62°30′W, on the northeastern tip of Ellesmere Island on the shore of the Lincoln Sea, in the territory of Nunavut in Canada.
The rugged terrain of the settlement is surrounded by hills and valleys. The shore is composed primarily of slate and shale, and the sea is covered with pack ice year-round.
Sir George Nares was the first to reach the northern end of Ellesmere Island; he arrived in the H.M.S. Alert in 1875–1876. The weather station was established in 1950, and the military base in 1958.
The Arctic Adventures of Flat Stanley (http://flatstanley.enoreo.on.ca/alert-nunavut.htm): Flat Stanley traveled all the way to Alert from Toronto as part of a fourth_grade class project.
Climate information (http://www.grc.k12.nf.ca/climatecanada/alert.htm)
The Canadian Encyclopedia: Alert, Nunavut (http://www.thecanadianencyclopedia.com/index.cfm?PgNm=TCE&Params=A1ARTA0000130)
Map of Nunavut showing location of Alert (http://www.athropolis.com/graphics/nunavut_game_2.gif)
The results showed that clonidine reduced alertness, impaired many aspects of performance and slowed saccadic eye movements; caffeine removed many of these impairments.
Both clonidine and caffeine influenced blood pressure (clonidine reduced it, caffeine raised it) but the effects appeared to be independent, suggesting that separate mechanisms were involved.
Subjects given caffeine also reported greater alertness and feelings of well-being, whereas the effects of breakfast on mood changed from the late morning to early afternoon.
Feeds |
Contact