Twitter announced Thursday it would add warning labels to tweets from officials and politicians that violate its rules—a move potentially affecting the prodigious output of US President Donald Trump.
* This article was originally published here
Thursday 27 June 2019
Hate speech on Twitter predicts frequency of real-life hate crimes
According to a first-of-its-kind study, cities with a higher incidence of a certain kind of racist tweets reported more actual hate crimes related to race, ethnicity, and national origin.
* This article was originally published here
* This article was originally published here
Nuclear stress test helps identify heart attack risk in people with diabetes
Abnormal results on a nuclear stress test are associated with a significantly increased risk of cardiac-related deaths, especially among people with diabetes, according to a multi-center study published in the journal Radiology: Cardiothoracic Imaging.
* This article was originally published here
* This article was originally published here
Extreme exercise can strain the heart without causing permanent damage
Researchers have found no evidence of elevated cardiac risk in runners who completed a 24-hour ultramarathon (24UM), despite the transient elevation of blood biomarkers that measure cardiac health. According to the study in the journal Heliyon, published by Elsevier, trained runners were more likely than their novice counterparts to experience raised levels, reflecting the greater cardiac load and pituitary-adrenocortical response to extremely strenuous exercise.
* This article was originally published here
* This article was originally published here
Robot arm tastes with engineered bacteria
A robotic gripping arm that uses engineered bacteria to "taste" for a specific chemical has been developed by engineers at the University of California, Davis, and Carnegie Mellon University. The gripper is a proof-of-concept for biologically-based soft robotics.
* This article was originally published here
* This article was originally published here
Camera joins Apple band in patent for smartwatch
Camera at the end of a smartwatch strap, anyone? It is being suggested as a way to overcome some hurdles in smartwatch picture-taking.
* This article was originally published here
* This article was originally published here
3-D printed prosthetic hand can guess how people play 'rock, paper, scissors'
A new 3-D-printed prosthetic hand can learn the wearers' movement patterns to help amputee patients perform daily tasks, reports a study published this week in Science Robotics.
* This article was originally published here
* This article was originally published here
Little Raspberry Pi 4 debut marks big upgrade
That credit card-sized computer that has been a standout learning experience for students and hobbyists at affordable cost just stole the show, again. The new Raspberry Pi, announced Monday, "packs significant upgrades that could let it finally pass as an incredibly cheap desktop computer," said Gizmodo's Andrew Liszewski.
* This article was originally published here
* This article was originally published here
Researchers unlock mysteries of complex microRNA oncogenes
MicroRNAs are tiny molecules of nucleic acid that control gene expression, acting like a dimmer switch to tone down gene output at key positions in the network of information that governs a cell's function. MicroRNAs are important for the day-to-day inner working of cells and especially important during development. They also become profoundly defective in diseases such as cancer. Unlike most other human or animal genes, microRNAs are often encoded in genomes and expressed as beads-on-a-string groupings, known as polycistrons. The purpose for this organisation has, until now, been a mystery.
* This article was originally published here
* This article was originally published here
Drag-and-drop data analytics
In the Iron Man movies, Tony Stark uses a holographic computer to project 3-D data into thin air, manipulate them with his hands, and find fixes to his superhero troubles. In the same vein, researchers from MIT and Brown University have now developed a system for interactive data analytics that runs on touchscreens and lets everyone—not just genius, billionaire, playboy philanthropists—tackle real-world issues.
* This article was originally published here
* This article was originally published here
Reducing overtesting in the emergency department could save millions
An emergency department is sometimes the first place a person thinks to go for health care.
* This article was originally published here
* This article was originally published here
The first soft ring oscillator lets soft robots roll, undulate, sort, meter liquids, and swallow
Soft robots can't always compete with the hard. Their rigid brethren dominate assembly lines, perform backflips, dance to Bruno Mars' "Uptown Funk," fly, dive, and walk through volcanoes.
* This article was originally published here
* This article was originally published here
Artificial intelligence controls robotic arm to pack boxes and cut costs
Rutgers computer scientists used artificial intelligence to control a robotic arm that provides a more efficient way to pack boxes, saving businesses time and money.
* This article was originally published here
* This article was originally published here
What are the most dangerous food groups?
Fruits, vegetables, whole grains, nuts and seeds—we hear a lot about the "best" food groups for health. But what about the worst ones? What foods should you be eliminating or at least cutting back on?
* This article was originally published here
* This article was originally published here
Migraine increases the risk of complications during pregnancy and childbirth
Despite the fact that many women who suffer migraines find that the number and severity of these severe headaches decrease during pregnancy, migraines are now being linked to elevated blood pressure, abortions, caesareans, preterm births and babies with low birth weight.
* This article was originally published here
* This article was originally published here
Turtle study shows hearts can be programmed to survive without oxygen
University of Manchester and University of North Texas scientists are the first to show that an embryonic living heart can be programmed to survive the effects of a low oxygen environment in later life.
* This article was originally published here
* This article was originally published here
The RoboBee flies solo—Cutting the power cord for the first untethered flight
The RoboBee—the insect-inspired microrobot developed by researchers at Harvard University—has become the lightest vehicle ever to achieve sustained flight without the assistance of a power cord. After decades of work, the researchers achieved untethered flight by making several important changes to the RoboBee, including the addition of a second pair of wings. That change, along with less visible changes to the actuators and transmission ratio, gave the RoboBee enough lift for the researchers to attach solar cells and an electronics panel.
* This article was originally published here
* This article was originally published here
Fake news 'vaccine' works: 'Pre-bunking' game reduces susceptibility to disinformation
An online game in which people play the role of propaganda producers to help them identify real world disinformation has been shown to increase "psychological resistance" to fake news, according to a study of 15,000 participants.
* This article was originally published here
* This article was originally published here
Understanding how tics are suppressed may help some at risk for tic disorders
At least 20 percent of elementary school-age children develop tics such as excessive blinking, throat clearing or sniffing, but for most of those kids, the tics don't become a long-term problem. Conventional wisdom has held that most tics go away on their own and that only in rare cases do they become chronic or develop into a disorder such as Tourette syndrome.
* This article was originally published here
* This article was originally published here
Is San Francisco's vaping ban backed by science?
San Francisco has decided to ban the sale of e-cigarettes in 2020, hoping to curb a surge in vaping among adolescents. But is the policy backed up by the available evidence?
* This article was originally published here
* This article was originally published here
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