SPEAKING two languages rather than just one has obvious practical benefits in an increasingly globalized world. But in recent years, scientists have begun to show that the advantages of bilingualism are even more fundamental than being able to converse with a wider range of people. Being bilingual, it turns out, makes you smarter. It can have a profound effect on your brain, improving cognitive skills not related to language and even shielding against dementia in old age. 

     This view of bilingualism is remarkably different from the understanding of bilingualism through much of the 20th century. Researchers, educators and policy makers long considered a second language to be an interference, cognitively speaking, that hindered a child’s academic and intellectual development. 

    They were not wrong about the interference: there is ample evidence that in a bilingual’s brain both language systems are active even when he is using only one language, thus creating situations in which one system obstructs the other. But this interference, researchers are finding out, isn’t so much a handicap as a blessing in disguise. It forces the brain to resolve internal conflict, giving the mind a workout that strengthens its cognitive muscles. 

    Bilinguals, for instance, seem to be more adept than monolinguals at solving certain kinds of mental puzzles. In a 2004 study by the psychologists Ellen Bialystok and Michelle MartinRhee, bilingual and monolingual preschoolers were asked to sort blue circles and red squares presented on a computer screen into two digital bins — one marked with a blue square and the other marked with a red circle. 

    In the first task, the children had to sort the shapes by color, placing blue circles in the bin marked with the blue square and red squares in the bin marked with the red circle. Both groups did this with comparable ease. Next, the children were asked to sort by shape, which was more challenging because it required placing the images in a bin marked with a conflicting color. The bilinguals were quicker at performing this task. 

    The collective evidence from a number of such studies suggests that the bilingual experience improves the brain’s so-called executive function — a command system that directs the attention processes that we use for planning, solving problems and performing various other mentally demanding tasks. These processes include ignoring distractions to stay focused, switching attention willfully from one thing to another and holding information in mind — like remembering a sequence of directions while driving.

    Why does the tussle between two simultaneously active language systems improve these aspects of cognition? Until recently, researchers thought the bilingual advantage stemmed primarily from an ability for inhibition that was honed by the exercise of suppressing one language system: this suppression, it was thought, would help train the bilingual mind to ignore distractions in other contexts. But that explanation increasingly appears to be inadequate, since studies have shown that bilinguals perform better than monolinguals even at tasks that do not require inhibition, like threading a line through an ascending series of numbers scattered randomly on a page.

    The key difference between bilinguals and monolinguals may be more basic: a heightened ability to monitor the environment. “Bilinguals have to switch languages quite often — you may talk to your father in one language and to your mother in another language,” says Albert Costa, a researcher at the University of PompeuFabra in Spain. “It requires keeping track of changes around you in the same way that we monitor our surroundings when driving.” In a study comparing German-Italian bilinguals with Italian monolinguals on monitoring tasks, Mr. Costa and his colleagues found that the bilingual subjects not only performed better, but they also did so with less activity in parts of the brain involved in monitoring, indicating that they were more efficient at it. 

    The bilingual experience appears to influence the brain from infancy to old age (and there is reason to believe that it may also apply to those who learn a second language later in life). 

    In a 2009 study led by Agnes Kovacs of the International School for Advanced Studies in Trieste, Italy, 7-month-old babies exposed to two languages from birth were compared with peers raised with one language. In an initial set of trials, the infants were presented with an audio cue and then shown a puppet on one side of a screen. Both infant groups learned to look at that side of the screen in anticipation of the puppet. But in a later set of trials, when the puppet began appearing on the opposite side of the screen, the babies exposed to a bilingual environment quickly learned to switch their anticipatory gaze in the new direction while the other babies did not. 

    Bilingualism’s effects also extend into the twilight years. In a recent study of 44 elderly Spanish-English bilinguals, scientists led by the neuropsychologist Tamar Gollan of the University of California, San Diego, found that individuals with a higher degree of bilingualism — measured through a comparative evaluation of proficiency in each language — were more resistant than others to the onset of dementia and other symptoms of Alzheimer’s disease: the higher the degree of bilingualism, the later the age of onset.

    Nobody ever doubted the power of language. But who would have imagined that the words we hear and the sentences we speak might be leaving such a deep imprint? 

Source: www.nytimes.com

Read the following passage from “The Chicken”, by Clarice Lispector, and answer question.

“But when everyone was quiet in the house and seemed to have forgotten her, she puffed up with modest courage, the last traces of her great escape. She circled the tiled floor, her body advancing behind her head, as unhurried as if in an open field, although her small head betrayed her, darting back and forth in rapid vibrant movements, with the age-old fear of her species now ingrained. Once in a while, but ever more infrequently, she remembered how she had stood out against the sky on the roof edge ready to cry out. At such moments, she filled her lungs with the stuffy atmosphere of the kitchen and, had females been given the power to crow, she would not have crowed but would have felt much happier. Not even at those moments, however, did the expression on her empty head alter. In flight or in repose, when she gave birth or while pecking grain, hers was a chicken head, identical to that drawn at the beginning of time.”

    As we all know, electricity is a fundamental need. On a daily basis, we consume electricity even without us knowing it. Just a simple task such as listening to your music player consumes electricity. Today, most of our electric generators and power plants are fed with fossil fuels such as petroleum and coal. However, due to the exponential increase of power demand, fossil fuel supplies are slowly being depleted. Not only that, but also burning fossil fuels has given off greenhouse gases and other unwanted byproducts. Because of this, the search for alternative energy sources is now a necessity. One of the most promising alternative energy sources today is Wind Powered Generators. So, what is a wind-powered generator? Basically it is the use of wind as a mechanical force needed to power an electric generator. Utilizing wind as an energy source is not exactly a new idea. The ancient Persians were the first to use wind to pump water, cut wood, and grind food and others by building windmills. Even today you can find windmills still being used on some farms. It was the use of wind as an electric source that came into existence much later. The first practical wind powered generators were built in 1970, but yet we rarely see them in widespread use today, why? Let’s look at the advantages and disadvantages of the wind powered generator.

    The main advantage of wind powered generators is that they have, ideally, zero gas emissions – unlike fossil-fueled power generators. Because of the alarming effects of greenhouse gases and global warming, we want our power generators to be as clean and as environmentally friendly as possible. Since there is no burning process in a wind powered generator that produces toxic gases, it is very safe to build one in residential areas. Also, with proper engineering and enough wind, these generators can provide a high rate of wattage that can go as high as the Megawatt range. Another advantage is that it can be implemented using several small turbines connected together. This is a good thing when there is not enough space for huge structures.

     The major disadvantage of wind powered generators is that wind power varies greatly from one place to another and from day to day and season to season. Sometimes wind may be strong enough to supply energy, but that strength cannot be maintained due to changes in weather patterns. Needing strong, constant wind to most effectively power wind generators is one reason they are often built in coastal areas. Another disadvantage is that the structure of most practical wind powered generators is huge and bulky. Commonly, its size is proportional to the wind power it can collect.

    Research in wind power has now intensified because of its innate advantages over other power generators. With this increase in interest in wind energy and alternative energy sources as a whole, our future will become brighter and more and more remote areas will eventually enjoy the benefits of clean electric energy. In an electricity-dependent world, power supplies must provide the required electricity for communities and businesses. Wind powered generators might just be the solution for power shortages.

Disponível em: http://mysolarcellhome.org/articles/pros-and-cons-of-wind-powered-generators. 

Eating Disorders a New Front in Insurance Fight

By ANDREW POLLACK

Published: October 13, 2011

     People with eating disorders like anorexia have opened up a new battleground in the insurance wars, testing the boundaries of laws mandating equivalent coverage for mental illnesses. 

     Through claims and court cases, those with severe cases of anorexia or bulimia are fighting insurers to pay for stays in residential treatment centers, arguing that the centers offer around-the-clock monitoring so that patients do not forgo eating or purge their meals.

     But in the last few years, some insurance companies have re-emphasized that they do not cover residential treatment for eating disorders or other mental or emotional conditions. The insurers consider residential treatments not only costly — sometimes reaching more than $1,000 a day — but unproven and more akin to education than to medicine. Even some doctors who treat eating disorders concede there are few studies proving that residential care is effective, although they believe it has value. 

(Disponível em: <http://www.nytimes.com/2011/10/14/business/ruling-offers-hope-to-eating-disorder-sufferers.html?hp>. Acesso em: 5 out. 2011).

     So a scientist walks into a shopping mall to watch people laugh. There’s no punchline. Laughter is a serious scientific subject, one that researchers are still trying to figure out. Laughing is primal, our first way of communicating. Apes laugh. So do dogs and rats. Babies laugh long before they speak. No one teaches you how to laugh. You just do. And often you laugh involuntarily, in a specific rhythm and in certain spots in conversation.
    You may laugh at a prank on April Fools’ Day. But surprisingly,  only 10 to 15 percent of laughter is the result of someone making a joke, said Baltimore neuroscientist Robert Provine, who has studied laughter for decades. Laughter is mostly about social responses rather than reaction to a joke. “Laughter above all else is a social thing,’’ Provine said. “The requirement for laughter is another person.’’  
    Over the years, Provine, a professor with the University of Maryland Baltimore County, has boiled laughter down to its basics. “All language groups laugh ‘ha-ha-ha’ basically the same way,’’ he said. “Whether you speak Mandarin, French or English, everyone will understand laughter. ... There’s a pattern generator in our brain that produces this sound.’’
    Each “ha’’ is about one-15th of a second, repeated every fifth of a second, he said. Laugh faster or slower than that and it sounds more like panting or something else. Deaf people laugh without hearing, and people on cell phones laugh without seeing, illustrating that laughter isn’t dependent on a single sense but on social interactions, said Provine, author of the book “Laughter: A Scientific Investigation.’’   
    “It’s joy, it’s positive engagement with life,’’ said Jaak Panksepp, a Bowling Green University psychology professor. “It’s deeply social.’’ And it’s not just a people thing either. Chimps tickle each other and even laugh when another chimp pretends to tickle them. By studying rats, Panksepp and other scientists can figure out what’s going on in the brain during laughter. And it holds promise for human ills.
    Northwestern biomedical engineering professor Jeffrey Burgdorf has found that laughter in rats produces an insulin-like growth factor chemical that acts as an antidepressant and anxietyreducer. He thinks the same thing probably happens in humans, too. This would give doctors a new chemical target in the brain in their effort to develop drugs that fight depression and anxiety in people. Even so, laughter itself hasn’t been proven to be the best medicine, experts said.

By Peter Kornbluh

“For the better part of two years, a group of editors, journalism students, and human rights lawyers in Santiago, Chile, have been gathering evidence against their country’s leading media mogul, Agustín Edwards, to, at minimum, have him expelled from the press guild, the Academy of Chilean Journalists. The editor of the leftist magazine Puncto Final, Manuel Cabieses, has filed a formal petition accusing Edwards of violating the academy’s code of ethics by conspiring with the Nixon White House and the CIA between 1970 and 1973 to foment the military coup that overthrew the elected government of Salvador Allende and brought General Augusto Pinochet to power, thirty years ago this month. ‘Doonie’, as Edwards is known to his closest friends, is the patriarch of the press – a Chilean Rupert Murdoch. His media empire encompasses Chile’s renowned national newspaper, El Mercurio, a second national paper, Ultimas Noticias, and Santiago’s leading afternoon paper, La Segunda, along with a dozen smaller regional journals. In September 1970, when Chileans narrowly elected Allende, a Socialist, to the presidency, Edwards was widely considered to be the richest man in Chile – and the individual with the most to lose financially from Allende’s election.

The ethics charges against Edwards are likely to receive a boost from a careful analysis of formerly secret U.S. documents that shed considerable new light on CIA covert media operations in Chile. Since 1975, when a special congressional committee chaired by Idaho Senator Frank Church issued its report, Covert Action in Chile: 1963-1973, it has been no secret that the CIA provided significant funding to El Mercurio, put reporters and editors on its payroll, and used the paper, in the committee’s words, as ‘the most important channel for anti-Allende propaganda.’ But with the declassification of thousands of CIA and White House records at the end of Clinton administration, the history of the ‘El Mercurio Project’ emerges in far greater detail. Among the key revelations in the documents:

• Even before Allende was inaugurated as president of Chile, Edwards came to Washington and discussed with the CIA the ‘timing for possible military action’ to prevent Allende from taking office. • President Nixon directly authorized massive funding in the newspaper. The White House approve close to $2 million dollars – a significant sum when turned into Chilean currency on the black market.

• Secret CIA cables from mid-1973 identified El Mercurio as among the ‘most militant parts of the opposition’ pushing for military intervention to overthrow Allende.

• In the aftermath of the coup, the CIA continued to covertly finance media operations in order to influence Chilean public opinion in favor of the new military regime, despite General Pinochet’s brutal repression.”

From: KORNBLUH, Peter. “The El Mercurio File”. Columbia Journalism Review. New York, p.14-15, September/October 2007.