Australasian Science: Australia's authority on science since 1938

Cover Story

Cover Story

Post Mortem: What Happens to Drugs after Death?

morgue

Many factors result in drug concentrations rising, falling or even disappearing after death.

By Michael Kennedy

Drug levels can rise, fall or even disappear entirely after death, potentially leading to incorrect conclusions about murder, suicide and drug overdoses.

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Saving Lives on the Battlefield

Credit: 1JPAU © Commonwealth of Australia

Credit: 1JPAU © Commonwealth of Australia

By Geoffrey Dobson

Treatments that stem blood loss after a catastrophic injury in the battlefield can damage the brain. However, a new drug strategy aims to stabilise both in the first crucial 10 minutes.

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Brain Stimulation & Memory: How Strong Is the Evidence?

neuron

The data show convincingly that tDCS does not enhance brain function.

By Jared Cooney Horvath

For nearly 15 years, scientists have reported that running a weak electric current through the brain can improve learning and memory. What if we got it wrong?

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Does Eating Less Extend Life?

Baweg/iStockphoto

Lifespan extension due to dietary restriction has been demonstrated in species ranging from yeast to flies to mice – and even primates too. Credit: Baweg/iStockphoto

By Margo Adler

Dietary restriction extends the lives of species as diverse as yeast, flies and mice, but is this effect simply due to artificial conditions in the laboratory?

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Window of Opportunity

Interleukin-2 therapy will achieve a complete response when it is administered d

Interleukin-2 therapy will achieve a complete response when it is administered during a 12-hour window in the 7-day immune cycle.

By Martin Ashdown & Brendon Coventry

By targeting cancer treatments to specific phases of the immune cycle, researchers believe they can dramatically improve the chances of complete remission.

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Lions of the Caribbean

 The red lionfish hides in plain sight using stripes and fins that disrupt the b

The red lionfish hides in plain sight using stripes and fins that disrupt the body shape.

By Oona Lönnstedt & Mark McCormick

Despite the extravagent appearance of red lionfish, these voracious carnivores are virtually undetectable by small prey and are causing massive problems in the Caribbean. So why aren’t they taking over the Great Barrier Reef?

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Brilliant Memories for Dark Places

haunted house

By Oliver Baumann

We are usually not aware of it, but emotions exert a powerful influence over our memories by playing a key role in determining what we remember and what we forget.

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Were dinosaurs warm-blooded?

T. rex

There are several lines of evidence that the basal archosaurs were endotherms

By Roger Seymour

An analysis of muscular power reveals that cold-blooded crocodiles are poor models for our beliefs about dinosaur physiology.

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The Sacrificial Urge

Praying

Atheists aren’t immune to an irrational tendency to make sacrifices to a higher power.

By Stephen Luntz

A study finds that atheists will offer sacrifices to appease a higher being even if they experience no benefit – or even a punishment.

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The Obesity Paradox

Credit: iStockphoto

Credit: iStockphoto

By Tim Olds

In the past 10 years there has been no increase in the fatness of kids, either in Australia or in many developed countries. At the other end of life, fatter adults are living longer than lean adults. What can be going on?

Professor Tim Olds is group leader of the University of South Australia’s Health and Use of Time program.

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