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7 Classics Every Doctor Should Read

A reminder to think beyond textbooks and journals; to always be a student of the human condition<p>As the odds against future physicians learning everything about the human body have climbed toward absurdity, the need to concentrate on the essentials of medical education has intensified as never …

The 20 big questions in science

1 What is the universe made of?<p>Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of. Atoms, which form everything we see around us, only account for a measly 5%. Over the past 80 years it has become clear that the substantial remainder is comprised of two …

Do Adults Keep Making New Brain Cells? Cold War-Era Radiation Reveals Answer

A different kind of carbon-14 dating<p>When the U.S. and Soviet Union tested nuclear weapons aboveground in the 1950s and 1960s, they left their mark on everyone alive at that time. The tests released unusual amounts of carbon-14 into the atmosphere, which people's cells would sometimes incorporate …

How much do oceans add to world’s oxygen?

Most of Earth’s oxygen comes from tiny ocean plants – called phytoplankton – that live near the water’s surface and drift with the …

Marine Biology

Supercontinent: how the world is moving together

This year is the 50th anniversary of one of 20th-century science's most important discoveries – the revelation that the land below us is on the move; …

Canadian accelerator produces a city’s-worth of medical isotopes overnight

The looming problem of a global medical isotope shortage is one step closer to a solution. A Canadian team has developed an upgrade that allows …

Bacterial apocalypse – the bugs are getting cleverer, and we are doing little to stop them

We're all doomed.<p>Well, possibly not. But having recently returned from the American Society for Microbiology annual meeting in Denver, Colorado, …

Bob Hardage: Using seismic technologies in oil and gas exploration

Seismic waves, the same type of waves used to study earthquakes, are also used to explore deep underground for reservoirs of oil and natural</i> …

Oil & Gas Industry

In Ancient Ice, Clues That Scientists Are Underestimating Future Sea Levels

The cold, hard facts<p>The skies do strange things at the NEEM camp, a remote ice-drilling and research facility on the northern Greenland ice sheet. Midnight sunshine. Low clouds of sparkling ice crystals known as "diamond dust." But when rain fell instead of snow last summer, complete with a rainbow …

Do antidepressants impair the ability to let go of fears?

These researchers found that long-term, but not short-term, SSRI treatment impairs “extinction learning:” the ability to learn that a conditioned …

New, simple theory may explain mysterious dark matter

This proposal, which endows dark matter particles with a rare form of electromagnetism, has been strengthened by a detailed analysis performed by a …