Questões de Vestibular

                        When does the brain work best?

                     The peak times and ages for learning

      What’s your ideal time of the day for brain performance? Surprisingly, the answer to this isn’t as simple as being a morning or a night person. New research has shown that certain times of the day are best for completing specific tasks, and listening to your body’s natural clock may help you to accomplish more in 24 hours.

      Science suggests that the best time for our natural peak productivity is late morning. Our body temperatures start to rise just before we wake up in the morning and continue to increase through midday, Steve Kay, a professor of molecular and computational biology at the University of Southern California told The Wall Street Journal. This gradual increase in body temperature means that our working memory, alertness, and concentration also gradually improve, peaking at about mid morning. Our alertness tends to dip after this point, but one study suggested that midday fatigue may actually boost our creative abilities. For a 2011 study, 428 students were asked to solve a series of two types of problems, requiring either analytical or novel thinking. Results showed that their performance on the second type was best at non-peak times of day when they were tired.

      As for the age where our brains are at peak condition, science has long held that fluid intelligence, or the ability to think quickly and recall information, peaks at around age 20. However, a 2015 study revealed that peak brain age is far more complicated than previously believed and concluded that there are about 30 subsets of intelligence, all of which peak at different ages for different people. For example, the study found that raw speed in processing information appears to peak around age 18 or 19, then immediately starts to decline, but short-term memory continues to improve until around age 25, and then begins to drop around age 35, Medical Xpress reported. The ability to evaluate other people’s emotional states peaked much later, in the 40s or 50s. In addition, the study suggested that out our vocabulary may peak as late as our 60s’s or 70’s.

      Still, while working according to your body’s natural clock may sound helpful, it’s important to remember that these times may differ from person to person. On average, people can be divided into two distinct groups: morning people tend to wake up and go to sleep earlier and to be most productive early in the day. Evening people tend to wake up later, start more slowly and peak in the evening. If being a morning or evening person has been working for you the majority of your life, it may be best to not fix what’s not broken.

           (Dana Dovey. www.medicaldaily.com, 08.08.2016. Adaptado.)

                            “One never builds something finished”:

                   the brilliance of architect Paulo Mendes da Rocha

Oliver Wainwright

February 4, 2017

   “All space is public,” says Paulo Mendes da Rocha. “The only private space that you can imagine is in the human mind.” It is an optimistic statement from the 88-year-old Brazilian architect, given he is a resident of São Paulo, a city where the triumph of the private realm over the public could not be more stark. The sprawling megalopolis is a place of such marked inequality that its superrich hop between their rooftop helipads because they are too scared of street crime to come down from the clouds.

   But for Mendes da Rocha, who received the 2017 gold medal from the Royal Institute of British Architects this week – an accolade previously bestowed on such luminaries as Le Corbusier and Frank Lloyd Wright – the ground is everything. He has spent his 60-year career lifting his massive concrete buildings up, in gravity-defying balancing acts, or else burying them below ground in an attempt to liberate the Earth’s surface as a continuous democratic public realm. “The city has to be for everybody,” he says, “not just for the very few.”

                                                                                    (www.theguardian.com. Adaptado.)

A new planet in our neighborhood - how likely is life there?

By Don Lincoln, August 24, 2016

Scientists working at the European Southern Observatory (ESO), using the La Silla telescope, claim to have discovered the closest exoplanet to Earth. Exoplanet means planets orbiting stars other than the Sun. Most of them are huge planets orbiting very near their star. The newly discovered planet, which orbits Proxima Centauri, a star within the so-called “habitable zone”, has been named Proxima b.

Proxima Centauri is a red dwarf, which is the most common type of star in the galaxy. Red dwarfs are much smaller than our Sun, and are very dim. For instance, in the visible spectrum that we use to see, Proxima Centauri gives off 0.0056% as much light as the Sun.

So what about life? Are there any chances that an alien lizard might bask in Proxima Centauri’s light or try to find shade under an alien tree? Dr. Guillem Anglada-Escudé, co-author of the research from London University, believes that “there is a reasonable expectation that this planet might be able to host life”

But this belief is not consensual as other scientists think the prospect of life is improbable. Although the temperature of the planet is thought to be such that liquid water could exist, it is unlikely that Proxima b is habitable, as the planet is subject to stellar wind pressures of more than 2000 times those experienced by Earth from the solar wind. These winds would likely blow any atmosphere away, leaving the undersurface as the only vaguely habitable location on that planet. You shouldn’t imagine, thus, a lush and verdant world, with lovely blue waters, sandy beaches and green plants.

So, what’s the bottom line? First, the discovery is extremely exciting. The existence of a nearby planet in the habitable zone will perhaps increase the interest in efforts like Project Starshot, which aims to send microprobes (instruments that apply a stable and wellfocused beam of charged particles -electrons or ions- to a sample) to Proxima Centauri. On the other hand, Proxima b is unlikely to be a haven for people trying to escape the ecological issues of Earth, so we should not view this discovery as a way to ignore our own ecosystem.

Adapted from: < http://edition.cnn.com/2016/08/24/opinions/nearbyplanet-opinion-lincoln/> Access Oct. 2016.

Glossário:

claim: afirmar; dwarf: anão; dim: opaco; give off: emitir; lizard: lagarto; bask: aquecer-se; belief: crença; wind: vento; undersurface: camada inferior; lush: viçoso; bottom line: aspecto fundamental; aim: visar/ter por objetivo; sample: amostra; haven: refúgio.