Search for "New France"

Displaying 21-40 of 52 results
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Biology

Biological studies of individuals and groups of organisms can occur at various levels (eg, molecular, cellular, anatomical, functional, behavioural, ecological and evolutionary).

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Bioethics

The word bioethics is formed from the Greek word for life (bios) and the traditional word for the systematic study of right conduct (ethics).

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Silviculture

Silviculture is the branch of FORESTRY that deals with establishing, caring for and reproducing stands of trees for a variety of forest uses including wildlife habitat, timber production and outdoor recreation.

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Genetics

Genetics may be conveniently divided into 3 areas of study: transmission genetics, molecular genetics and population genetics.

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Agroforestry

Agroforestry is an intensive land management system that integrates the benefits from biological interactions created when trees or shrubs are intentionally grown with crops or livestock.

Macleans

Alzheimer's Gene Found

Frances Hodge was only 47 when Alzheimer's disease began to destroy her brain. The first symptoms appeared in 1975, when her memory began to fail. By the early 1980s, she could no longer talk, and in 1986 she entered a nursing home, where she remained until her death four months ago.

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Entomology

Entomology is the branch of zoology dealing with the study of insects, although which organisms are included is open to interpretation.

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Canada and the Development of the Polio Vaccine

During the first half of the 20th century, poliomyelitis, a.k.a. polio or “The Crippler,” hit Canada harder than anywhere else. Successive polio epidemics peaked in a national crisis in 1953. By that time, however, scientists at Connaught Medical Research Laboratories of the University of Toronto had made key discoveries that enabled American medical researcher and virologist Jonas Salk to prepare the first polio vaccine. Connaught Labs also solved the problem of producing the vaccine on a large scale. Canada went on to play an important role in the development of the oral polio vaccine and international efforts to eradicate the disease.

Click here for definitions of key terms used in this article.

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Forest Survey

Foresters use forest surveys to obtain information on the condition of the FOREST and monitor any changes, since there are not only surveys of standing trees, but also surveys after logging as well as forestry surveys aimed at prescribing treatments.

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Central Experimental Farm

The initial purpose of CEF and its 4 sister locations across Canada was to help resolve farm production matters. This early grouping has grown into a strong national network of 19 sites that include multiple locations, sub stations and field sites in each of the Canadian provinces.

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Irrigation

Irrigation is warranted where the CLIMATE is essentially arid or semiarid and is characterized by low and unpredictable precipitation (see RAIN).

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Biodiversity

 Biodiversity is the variety of life (genetic, species and ecosystem levels) on Earth or some part of it. It includes all living forms, plants, animals and micro-organisms. It is the natural wealth of a region that provides resources and ecological services.

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Tommy Douglas and Eugenics

Tommy Douglas — the father of socialized medicine in Canada and one of the country’s most beloved figures — once supported eugenic policies. In 1933, he received a Master of Arts in sociology from McMaster University for his thesis, “The Problems of the Subnormal Family.” In the thesis, Douglas recommended several eugenic policies, including the sterilization of “mental defectives and those incurably diseased.” His ideas were not unique, as two Canadian provinces (and 32 American states) passed sexual-sterilization legislation in the 1920s and 1930s. However, by the time Douglas became premier of Saskatchewan in 1944, he had abandoned his support for eugenic policies. When Douglas received two reports that recommended legalizing sexual sterilization in the province, he rejected the idea.

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Biogeography

Ecology is subdivided into 3 fields of study: autecology (relations of individual species or populations to their milieu), synecology (composition of living communities) and dynecology (processes of change in related communities).