Not great, guys. By Andrew Moseman
America has no shortage of idiots who pass the time by shining lasers at planes and helicopters. Thankfully, today’s awesome camera technology means that our nation’s worst and dimmest are caught pretty easily.
Take this recent clip at LiveLeak. As it opens you can see a blue light at the bottom, clearly people shining a laser at the news chopper. The thing about shining a bright laser at somebody, though, is that it gives away your position. The news chopper guys call it in, and pretty soon the cops come for these geniuses.
Don’t be these guys. If you’re not swayed by the very real danger of blinding pilots, then take a moment to consider the people who decided to point a laser at a police helicopter. Yeah. They didn’t get away.
One small step for man, one giant leap for mousekind.
Scientists have painstakingly mapped the connections in a tiny segment of the mouse’s brain. The stunningly intricate picture provides an unprecedented level of detail of an organ smaller than a pebble and lighter than the average cotton ball.
“At the end of the day, we want to understand the human brain. Understanding the mouse brain is an important step toward that goal,” Lydia Ng, senior director of technology at the nonprofit Allen Institute for Brain Science in Seattle, told Live Science in an email.
The resulting 3D structure, called the Mouse Common Coordinate Framework, is the equivalent of leveling up from simple paper maps to a Google Maps or GPS for the mouse brain, Ng said.
“Maps of the brain have always been created in two dimensions, but even a stack of flat maps sitting on top of each other does not necessarily align with the complex three-dimensional nature of the brain,” neuroscientist Christof Koch, the president and chief scientific officer of the Allen Institute for Brain Science, said in a statement. [See Images of the Mouse Brain Up Close]
The new map, however, doesn’t just track the firing between different brain cells; it also allows researchers to visualize how different genes are expressed in teensy portions of the brain as well as the physical connections between anatomical structures in the brain.
To create this detailed map, researchers carefully measured and examined 1,675 mouse brains and then created a 3D image of an “average mouse brain.” From there, the scientists used fluorescently labeled brain cells from the mouse brain as clues to help draw the boundaries between different brain regions. Ultra-high-resolution images of individual brain cells were then translated into digital images.
The ultimate goal for this project, as well as for the the National Institutes of Health’s larger BRAIN Initiative, which helped fund the current project, is to create a detailed map of all the connections in the human brain. Though the mouse brain is an important first step, there are many more to go. The human brain weighs about 3.3 pounds (1.5 kilograms), whereas the mouse brain weighs just 0.02 ounces (0.5 grams) — or about the weight of a paper clip. What’s more, the mouse brain contains just 70 million neurons, whereas the human brain contains a whopping 86 billion neurons, according to a study published in 2012 in the journal Nature.
Any researcher interested in using the framework or looking at the data can do so at brain-map.org, Ng said.
Original article on Live Science.
A large global study of more than 12,000 first-time heart-attack patients found a strong link between the attack and what the patients were doing and feeling in the hour preceding the event.
The study, published in the journal Circulation, found that being angry or emotionally upset more than doubled the risk of suffering a heart attack. Performing heavy physical activity in a highly emotional state more than tripled the risk. The researchers compared people’s behavior in the 60 minutes before the onset of heart-attack symptoms with the same one-hour period 24 hours earlier.
The results, based on an analysis of heart-attack patients in 52 countries, were consistent regardless of other, traditional cardiovascular risk factors, such as obesity, high blood pressure and diet.
Intense physical activity and negative emotions can increase heart rate and blood pressure, which reduces the supply of blood and oxygen to the heart, the researchers said. This can cause arterial plaque to rupture and trigger an acute myocardial infarction, or heart attack, they said.
Previous studies have found links between heart-attack risk and anger, stress, physical activity—even extreme happiness. But these mostly involved a small number of subjects from Western countries, the researchers said.
Researchers at the Population Health Research Institute at McMaster University in Hamilton, Ontario, analyzed data from patients who were examined and interviewed at 262 health centers around the world as part of a larger study. The patients, about three-quarters of whom were men, were 58 years old, on average.
In the hour before the first symptoms, 13.6 percent were engaged in heavy physical exertion, compared with 9.1 percent on the previous day. Feelings of anger or being emotionally upset were reported by 14.4 percent and 9.9 percent during the same periods, respectively. The majority of heart attacks occurred between 6 a.m. and 6 p.m.
Legal cannabis sales are growing rapidly, but these states are unlikely to be seeing green anytime soon, if ever.