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Researchers in the US have developed a technological aid: a chest-mounted video camera — linked to a processing unit involving a computer-vision algorithm — and a pair of vibrating wristbands. When the system detects a hazard that the wearer is set to collide with, the wristband on the same side as the hazard vibrates. If the obstacle is straight ahead, both wristbands vibrate. The researchers said the device was not designed to replace canes or guide dogs but rather to provide additional benefits, including helping wearers to avoid hazards above ground level.

Writing in the journal Jama Ophthalmology, the researchers reported that a study of 368 hours of walking video data from 31 blind or partially sighted participants indicates that the approach could be helpful.

After a period of training, each participant used the system for about four weeks, in addition to their cane or guide dog. During this time the system switched unannounced between “active” mode — during which the wristbands vibrated when a hazard was detected — and “silent” mode, where they did not. The researchers then analysed the data to see whether the rate of contacts between the user’s body or cane and the objects identified by the system differed between the two scenarios.

When they looked at a random sample of collision warnings for each participant, they found that such contacts were reduced by 37% when the system was in active mode, taking into account factors including participants’ level of visual acuity.

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The lion and the four bulls

Clarke, M.

A lion used to walk about a field in which four bulls lived. Many times he tried to attack them, but whenever he came near, they turned their tails toward one another so that whichever way the lion tried to attack, he would have to face the horns of one of them.

At last, however, the bulls started arguing with each other, and each went off to a different part of the field by himself. Then the lion attacked them one by one and soon had killed all four.

Question refer to the comic strip below:

Children who are slow to walk because of diseases like muscular dystrophy, cerebral palsy or Down syndrome have been shown to benefit cognitively and socially by moving around with the help of a motor. The problem: most motorized wheelchairs are too big for the tiniest kids. As a result, some parents of such children have been stuck modifying toy cars to help them out. Enter Permobil’s Explorer Mini ($2,695): a U.S. Food and Drug Administration–cleared motorized device built expressly for kids ages 1 to 3. Kids can control the chair, available only with a prescription, via a joystick. The idea, says Amy Morgan, a pediatric physical therapist and Permobil project manager, is “to jump-start kids’ physical development.” It is an ergonomic device with multiple weight bearing surfaces to help promote safe, stable upright postures while providing opportunities to improve strength, endurance and postural control.

Online, Generation Z (ages 9-24) has been criticising numerous aspects of mainstream Millennial (ages 25-40) style, namely their affections for side-parted hair and skinny jeans. In the process they have unleashed a tidal wave of bold, self-conscious and downright spiteful reactions from Millennials. The trending dispute is so impassioned, not due to a lifelong allegiance to the particular jeans or hairstyle in question, but because the accusation of being outdated has forced Millennials to face an uncomfortable truth: there's been a transfer of generational power.

The question refers to the text below.

Examine a tira Peanuts, de Charles Schulz.

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Your brain’s roughly 86 billion interconnected neurons endow it with the ability to understand the world, plan actions, and solve problems. Doing so requires the brain to incorporate all available information. By combining information from all of your body’s senses, the brain paints a picture of the world around you. Then, using inference and instinct, the brain makes sense of the picture it assembles.

The brain both makes and uses emotions, which are value judgments that help the brain respond effectively to events. It associates the pictures it assembles with feelings to form memories. Our brains store those memories, learn from them, and use that knowledge in the future. By combining all of these tools with imagination, your brain can predict future events, calculate your next move, and devise plans for future opportunities. Consciousness requires that all of these activities function normally. In other words, your brain’s trillions of connections work together to understand the world, to think about the future, and to create … you.

Look at the picture of the advertising campaign created by Berlin agency

DISCONTINUED AROUND THE WORLD, STILL AVAILABLE IN THE OCEAN.

Plastic can take 500 years to bio-degrade in the ocean. Help us to protect marine biodiversity from plastic pollution and learn more about environmental education on www.fundacionmeri.cl.