Surgery

How a golf swing can lead to early lumbar degeneration

In the article "Golf: a contact sport. Repetitive traumatic discopathy may be the driver of early lumbar degeneration in modern-era golfers" published today in the Journal of Neurosurgery: Spine, Drs. Corey T. Walker, Juan ...

Health

ACA coverage substantial, but did not impact labor markets

(HealthDay)—Millions of workers gained insurance coverage under the Affordable Care Act (ACA) without adverse effects on labor markets, according to a report published by the Robert Wood Johnson Foundation and the Urban ...

Health

When it comes to respiratory effects of wood smoke, sex matters

Exposure to wood smoke can have different effects on the respiratory immune systems of men and women—effects that may be obscured when data from men and women are lumped together, according to a study published today in ...

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Wood

Wood is an organic material; in the strict sense it is produced as secondary xylem in the stems of trees (and other woody plants). In a living tree it conducts water and nutrients to the leaves and other growing tissues, and has a support function, enabling woody plants to reach large sizes or to stand up for themselves. However, wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or wood chips or fiber.

People have used wood for millennia for many purposes, primarily as a fuel or as a construction material for making houses, tools, weapons, furniture, packaging, artworks, and paper. Wood can be dated by carbon dating and in some species by dendrochronology to make inferences about when a wooden object was created. The year-to-year variation in tree-ring widths and isotopic abundances gives clues to the prevailing climate at that time.

This text uses material from Wikipedia, licensed under CC BY-SA