Browse "Science & Technology"

Displaying 201-220 of 821 results
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Criminology

Most of the criminological research in Canada has been done at those universities where centres focusing on research have evolved. The Université de Montréal established Canada's first School of Criminology with Denis Szabo in 1960.

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Crop Research

Crop research may be defined as activity directed to making the production, marketing and use of commercial crops more efficient and profitable.

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Crops

Crops are plant species grown for human or animal consumption or for special purposes (e.g., flax, tobacco). In Canada, most major crops grown are used for food and feed.

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Cryptozoology

Cryptozoology is the scientific study of unknown animals about which only circumstantial, or at best insufficient, material evidence is available.

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CTrain

CTrain is a light rail transit system in Calgary, Alberta. It is operated by Calgary Transit, a public transit service owned by the City of Calgary and operated through its Transportation Department. Service began on the initial downtown transit corridor and south line in 1981. It expanded to northeast Calgary in 1985, to the University of Calgary in the city’s northwest in 1987 and to the city’s west side in 2012. Most of its route and stations are at surface level. Calgary Transit operates the CTrain in conjunction with an extensive network of bus routes. Through equivalency purchases of wind-generated electricity, it has been entirely wind-powered since 2001. Its two separate lines comprise 45 stations, 118.1 km of track, and an average daily ridership of 312,300 (2018).

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Cystic Fibrosis Canada

Cystic Fibrosis Canada is a national, nonprofit, voluntary health agency established 15 July 1960. Cystic fibrosis is a disorder that occurs when a child inherits 2 genes for the condition, one from each parent.

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Dating in Archaeology

 For those researchers working in the field of human history, the chronology of events remains a major element of reflection. Archaeologists have access to various techniques for dating archaeological sites or the objects found on those sites.

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De Havilland Beaver

De Havilland Beaver, DHC-2, successor to the Noorduyn Norseman, was the all-purpose bush plane of the Canadian North. The Beaver was sturdy, reliable and able to take off and land on short lengths of land, water and snow. It has been called the best bush plane ever built. While de Havilland produced it for only 20 years — from 1947 to 1967 — many Beaver planes still fly today. The Beaver helped connect communities in remote areas of Canada, in addition to serving across the globe.

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de Havilland Caribou

De Havilland Caribou, DHC-4, twin-engined STOL aircraft capable of taking off in only 220 m. It was characterized by the sharp upward angle of the rear fuselage, providing access for large loads. It first flew July 1958, and was used mostly in a military role.

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de Havilland Dash 7

De Havilland Dash 7, DHC-7, STOL aircraft designed for efficient transport from city centres. It first flew March 1975 after a long development costing $120 million, four-fifths of which was paid by the federal government. Its

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Death

For centuries the law has accepted the cessation of heartbeat and respiration as the determination of death, but now the heart can be removed, the breathing stopped and blood pumped by machines without preventing the individual's resumption of lucid consciousness.

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Death and Dying

Death, the irreversible cessation of life, has always intrigued and frightened mankind. Every known culture has attempted to provide an explanation of its meaning; like birth or marriage it is universally considered an event of social significance, amplified by ritual and supported by institutions.

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Deep Rover

A one-man submersible capable of working 4-6 hours under water to a depth of 914 m at speeds up to 1.5 knots, Deep Rover was designed by Graham Hawkes at San Leandro, Calif, and built by Can-Dive Services Ltd of Vancouver and in Dartmouth, NS, in 1984 to work in the offshore oil industry.

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Dentistry

Dentistry is the art of the treatment of teeth and their supporting tissues. The Egyptians, in their papyri dating back to 3500 BC, described dental and gingival ("of the gums") maladies and their management, and evidence of teeth restoration has been found in Egyptian mummies.