Expert opinion

Gift cards often end up in the bin, but extending their life might not help

The New South Wales Parliament is introducing legislation, creating a three year minimum expiry date on gift cards. This reform will go some ways towards solving the problem of unredeemed gift cards.

Dissociative identity disorder exists and is the result of childhood trauma

Once known as multiple personality disorder, dissociative identity disorder remains one of the most intriguing but poorly understood mental illnesses.

I’ve always wondered: Why don’t hippos get cholera?

Why don’t hippopotamuses get cholera? Why are some animals resistant to waterborne disease? – Phil Morey The short answer is that cholera has evolved to infect humans, not hippos.

In historic cases, punishment alone is not always the best response to violent crime

Sentencing offenders for crimes committed many years earlier raises important questions about what purpose sentences in such cases are expected to achieve.

Rendering of a Supermassive Black Hole - Credit: ESO/L. Calçada

Expect the unexpected from the big-data boom in radio astronomy

New technology is now gathering data on objects in our universe faster than astronomers can analyse.

When girls are in the audience, choir boys sing for attention

Singing in the choir is a selfless pursuit requiring artistry and discipline.Or is it? New research suggests all it takes to elicit surreptitious attention-seeking vocal behaviour among the boys is to place a few teenage girls in the audience.

We Live Here: how do residents feel about public housing redevelopment?

The #WeLiveHere2017 project attempts to capture residents’ concerns about changing neighbourhoods and homes.

Technology in the classroom can improve primary mathematics

Can technology in the classroom help or hinder learning? And should it be used to teach maths?

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Expert opinion

Gift cards often end up in the bin, but extending their life might not help

Dissociative identity disorder exists and is the result of childhood trauma

I’ve always wondered: Why don’t hippos get cholera?

In historic cases, punishment alone is not always the best response to violent crime

Expect the unexpected from the big-data boom in radio astronomy

When girls are in the audience, choir boys sing for attention

We Live Here: how do residents feel about public housing redevelopment?

Technology in the classroom can improve primary mathematics

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