Monday, 3 June 2019

Feathers came first, then birds

New research, led by the University of Bristol, suggests that feathers arose 100 million years before birds—changing how we look at dinosaurs, birds, and pterosaurs, the flying reptiles.

* This article was originally published here

From viruses to social bots, researchers unearth the structure of attacked networks

The human body's mechanisms are marvelous, yet they haven't given up all their secrets. In order to truly conquer human disease, it is crucial to understand what happens at the most elementary level.

* This article was originally published here

New mineral classification system captures Earth's complex past

The first minerals to form in the universe were nanocrystalline diamonds, which condensed from gases ejected when the first generation of stars exploded. Diamonds that crystallize under the extreme pressure and temperature conditions deep inside of Earth are more typically encountered by humanity. What opportunities for knowledge are lost when mineralogists categorize both the cosmic travelers and the denizens of deep Earth as being simply "diamond"?

* This article was originally published here

Oldest flaked stone tools point to the repeated invention of stone tools

A new archaeological site discovered by an international and local team of scientists working in Ethiopia shows that the origins of stone tool production are older than 2.58 million years ago. Previously, the oldest evidence for systematic stone tool production and use was 2.58 to 2.55 million years ago.

* This article was originally published here

Nailing digital fakes with AI-learned artifacts

We see the imaginative feats of photo fakery; now we have to figure out what to do about them. Being able to tell fake from real is the goal, but how to get there? Forensics is the key tool to hunt down fake photos and it does not appear to be an easy task in getting that tool to perform well.

* This article was originally published here

Researchers find seaweed helps trap carbon dioxide in sediment

Every beachgoer can spot seaweed in the ocean or piling up on the beach, but Florida State University researchers working with colleagues in the United Kingdom have found that these slimy macroalgae play an important role in permanently removing carbon dioxide from the atmosphere.

* This article was originally published here

Pop-up parks deliver big benefits in small spaces

Pop-up stores, restaurants, and theaters are an increasingly common sight in cities around the world, where they add to the diversity of commercial options available to city dwellers. But while the pop-up phenomenon is normally associated with urban activities like shopping and dining, it has also caught the attention of city planners, ecologists, and conservation scientists striving to find new ways to integrate natural features into rapidly urbanizing areas.

* This article was originally published here

The dangers of being a people-pleaser

(HealthDay)—Being thoughtful and caring are great qualities to have, but if you go out of your way to get people to like you, you could be a people-pleaser, with unfortunate consequences for your own well-being.

* This article was originally published here

Lithium boosts muscle strength in mice with rare muscular dystrophy

Standing up from a chair, climbing stairs, brushing one's hair—all can be a struggle for people with a rare form of muscular dystrophy that causes progressive weakness in the shoulders and hips. Over time, many such people lose the ability to walk or to lift their arms above their heads.

* This article was originally published here