Browse "Science & Technology"

Macleans

Alzheimer's Battle

At first, the effects are almost imperceptible: a man or woman cannot find keys or forgets the name of a loved one. As Alzheimer's disease continues to destroy nerve cells in the brain, the incidents become more frequent - and more troubling.

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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Theory and analysis

Theory and analysis. Music theory is concerned principally with the structure of music. Music theorists are engaged in such diverse tasks as the study of analytical and pedagogical technique, 'pure' theory, psychoacoustics, music perception, and the history of theory.

Macleans

Male and Female Brains

It began almost by accident. In an effort to uncover the causes of dyslexia, psychologist Sandra Witelson decided in 1970 to conduct an experiment involving dyslexic and other children at a Hamilton grade school. Because dyslexia affects mostly males, Witelson planned to use boys only.

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Floras and Botanical Journals

Before 1900 a published "flora" was, loosely defined, a comprehensive, itemized description of the plants of a specific geographical region. Usually more than a mere list, it should have been an analytical description, discussing habitats and distribution and citing previous authorities.

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Computers and Canadian Society

Canadians use computers in many aspects of their daily lives. Eighty-four per cent of Canadian families have a computer in the home, and many people rely on these devices for work and education. Nearly everyone under the age of 45 uses a computer every day, including mobile phones that are as capable as a laptop or tablet computer. With the widespread use of networked computers facilitated by the Internet, Canadians can purchase products, do their banking, make reservations, share and consume media, communicate and perform many other tasks online. Advancements in computer technologies such as cloud computing, social media, artificial intelligence and the Internet of Things are having a significant impact on Canadian society. While these and other uses of computers offer many benefits, they also present societal challenges related to Internet connectivity, the digital divide, privacy and crime.

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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.