Psychology & Psychiatry

Postpartum mental health visits 30% higher during COVID-19 pandemic

Mental health visits for new mothers were 30% higher during the COVID-19 pandemic than before the pandemic, particularly in the first 3 months after giving birth, found new research in CMAJ (Canadian Medical Association Journal).

Gastroenterology

Can virtual reality help seniors? Study hopes to find out

Terry Colli and three other residents of the John Knox Village senior community got a trip via computer to the International Space Station in the kickoff to a Stanford University study on whether virtual reality can improve ...

Psychology & Psychiatry

Nature draws out a happy place for children

Young children in deprived areas see nature and outdoor spaces as being associated with 'happy places,' according to a new study published in the journal Child Indicators Research.

Neuroscience

Does your neighborhood affect your stroke recovery?

Stroke survivors who live in neighborhoods with lower socioeconomic status—areas with lower household income, education levels and occupational status—may have worse recovery three months after a stroke than people who ...

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Space

Space is the boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of the boundless four-dimensional continuum known as spacetime. In mathematics spaces with different numbers of dimensions and with different underlying structures can be examined. The concept of space is considered to be of fundamental importance to an understanding of the universe although disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework.

Many of the philosophical questions arose in the 17th century, during the early development of classical mechanics. In Isaac Newton's view, space was absolute - in the sense that it existed permanently and independently of whether there were any matter in the space. Other natural philosophers, notably Gottfried Leibniz, thought instead that space was a collection of relations between objects, given by their distance and direction from one another. In the 18th century, Immanuel Kant described space and time as elements of a systematic framework which humans use to structure their experience.

In the 19th and 20th centuries mathematicians began to examine non-Euclidean geometries, in which space can be said to be curved, rather than flat. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean space provides a better model for explaining the existing laws of mechanics and optics.

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