field_of_this_profession assistant professor
Assistant professor ( frequently capitalized as Assistant Professor ) is a tenure - track introductory level professor academic rank used in the United States , Canada , and some other countries . It is generally taken after earning a PhD and completing one or more post - doctoral positions . It is often below the position of associate professor and usually equivalent to lecturer in English - speaking countries or to `` Profesor Asociado '' to `` Profesor Titular '' in Spanish - speaking countries . In the United Kingdom and Ireland , a lecturer holds an open - ended , tenure - track or tenured position at a ___MASK72___ or similar institution , and is often an academic at an early career stage who teaches , conducts ___MASK57___ , and leads ___MASK57___ groups . Most lecturers typically hold permanent contracts at their academic institution . In terms of responsibilities and recognition , the position of an open - ended lecturer on a permanent contract is equivalent to assistant professor or associate professor in the North American academic system . This is a tenure - track or tenured position , although UK tenure has eroded since 1988 . Calgary is a city in the Canadian province of Alberta . It is situated at the confluence of the ___MASK67___ River and the Elbow River in the south of the province , in an area of foothills and prairie , about east of the front ranges of the Canadian Rockies . In the 2011 census , the City of Calgary had a population of 1 , 096 , 833 and a metropolitan population of 1 , 214 , 839 , making it the largest city in Alberta , and the third - largest municipality and fifth - largest census metropolitan area ( CMA ) in Canada . A ___MASK72___ (" a whole ", " a corporation ") is an institution of higher ( or tertiary ) ___MASK70___ and research which grants academic degrees in various subjects . Universities typically provide undergraduate ___MASK70___ and postgraduate ___MASK70___ . In physical ___MASK34___ , tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons . The term " tundra " comes through Russian  (" tûndra ") from the Kildin Sami word " tndâr " " uplands ", " treeless mountain tract ". There are three types of tundra : Arctic tundra , alpine tundra , and Antarctic tundra . In tundra , the vegetation is composed of dwarf shrubs , sedges and grasses , mosses , and lichens . Scattered trees grow in some tundra regions . The ecotone ( or ecological boundary region ) between the tundra and the forest is known as the tree line or timberline . Professor ( commonly abbreviated as " prof .") is an academic rank at universities and other post - secondary ___MASK70___ and research institutions in most countries . Literally , " professor " derives from Latin as a " person who professes " being usually an expert in arts or sciences , a teacher of the highest rank . Canada ( French : ) is a country in the northern half of North America . Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean , covering , making it the world ' s second - largest country by total area and the fourth - largest country by land area . Canada ' s border with the United States is the world ' s longest land border . The majority of the country has a cold or severely cold winter climate , but southerly areas are warm in summer . Canada is sparsely populated , the majority of its land territory being dominated by forest and tundra and the Rocky Mountains . About four - fifths of the country ' s population of 36 million people is urbanized and live near the southern border . Its capital is Ottawa , its largest city is Toronto ; other major urban areas include Montreal , Vancouver , Calgary , Edmonton , Quebec City , Winnipeg and Hamilton .