Before they reach young adulthood, many children in the United States will experience their parents separating, divorcing, finding another partner or getting remarried. 

When families change structure, it is more common for children to exhibit behavior problems, such as aggression and defiance, and a new psychology paper say that behavior problems in children increased in high-income families most, and that children's age also played a part in their likelihood of having behavior problems.

Moving from a single-parent family into a step-parent family then improved children's behavior in higher-income families but not in lower-income families.

By Rosalind Crone, The Open University

A panic erupted in Britain 126 years ago.

At daybreak on Saturday September 8, the mutilated body of Annie Chapman, a prostitute, had been found in the back yard of 29 Hanbury Street, Spitalfields.

Her injuries and the removal of some of her abdominal organs led investigators and journalists to link Chapman’s murder with that of another woman, only a week earlier.

By Chris Gorski, Inside Science

(Inside Science) -- Xenon is one of the so-called noble gases. It's odorless, colorless and a loner. It very rarely combines with other atoms, or even itself, to form molecules. Like helium, neon, argon, krypton and radon, it's kind of a wallflower that rests on the far right of the periodic table.

Unlike most of those others, though, recent reports show that xenon might improve athletic performance in endurance sports. The gas may also help erase traumatic memories.

For decades, doctors have developed methods to diagnose how different types of cells and systems in the body are functioning. Now scientists have adapted biomedical techniques to study the vast body of the ocean.

In a Science paper, scientists demonstrate that they can identify and measure proteins in the ocean, revealing how single-celled marine organisms and ocean ecosystems operate.

By Tim Crook, Goldsmiths, University of London

The Old Bailey’s Central Criminal Court is an Edwardian building that bears the inscription “Defend the children of the poor and Punish the wrongdoer.”

An Italian visitor more than 100 years ago suggested it should be replaced with an aphorism from Dante’s Inferno: “Abandon All Hope Ye Who Enter here.”

Biologists have found that increasing the amount of the gene
AMPK
that can slow the aging process throughout the entire body when activated remotely in key organ systems.

When researchers created a whipped jet in polydimethylsiloxane oil, a viscous dielectric material, they were surprised to see the chaotic motion switch over to a steady-state helical structure.

So they got a high-speed, microscope-based video camera operating at 50,000 frames per second to study the waveforms emerging from the experimental jets, which were less than five microns in diameter. The resulting video allowed precise examination of the waveforms produced when the liquid flowed out of the glass needle and into the second liquid flowing around it.

Coral trout are fast when chasing prey above the reefs of their habitat, but can't pursue their quarry if it buries itself into a hard-to-reach reef crevice - so they instead team up with a snake-like moray eel to flush out the unfortunate fish, which is a remarkable piece of interspecies collaboration: either the eel takes the prey in the reef, or scares it back into the open so the trout can pounce.

If depictions of animals in ancient Egyptian artifacts are an accurate climate record, they have helped scholars assemble a detailed record of the large mammals that lived in the Nile Valley over the past 6,000 years.

They then determined that species extinctions, probably caused by a drying climate and growing human population, made the ecosystem progressively less stable. 

An ortho-oncology team at Dartmouth-Hitchcock Norris Cotton Cancer Center successfully adapted a shoulder surgical aid, the Spider Limb Positioner, to conduct a left hip disarticulation on a melanoma patient.