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E1442649-BB Brazil plowed billions of dollars into building a railroad across arid backlands, only for the longdelayed project to fall prey to metal scavengers. Curvaceous new public buildings designed by the famed architect Oscar Niemeyer were abandoned right after being constructed. There was even an illfated U.F.O. museum built with federal funds. Its skeletal remains now sit like a lost ship among the weeds.As Brazil sprints to get ready for the World Cup in June, it has run up against a catalog of delays, some caused by deadly construction accidents at stadiums, and cost overruns. It is building bus and rail systems for spectators that will not be finished until long after the games are done. But the World Cup projects are just a part of a bigger national problem casting a pall over Brazil’s grand ambitions: an array of lavish projects conceived when economic growth was surging that now stand abandoned, stalled or wildly over budget.Some economists say the troubled projects reveal a crippling bureaucracy, irresponsible allocation of resources and bastions of corruption.Huge street protests have been aimed at costly new stadiums being built in cities like Manaus and Brasília, whose paltry fan bases are almost sure to leave a sea of empty seats after the World Cup events are finished, adding to concerns that even more white elephants will emerge from the tournament.“The fiascos are multiplying, revealing disarray that is regrettably systemic,” said Gil Castello Branco, director of Contas Abertas, a Brazilian watchdog group that scrutinizes public budgets. “We’re waking up to the reality that immense resources have been wasted on extravagant projects when our public schools are still a mess and raw sewage is still in our streets.”The growing list of troubled development projects includes a $3.4 billion network of concrete canals in the drought-plagued hinterland of northeast Brazil — which was supposed to be finished in 2010 — as well as dozens of new wind farms idled by a lack of transmission lines and unfinished luxury hotels blighting Rio de Janeiro’s skyline.Economists surveyed by the nation’s central bank see Brazil’s economy growing just 1.63 percent this year, down from 7.5 percent in 2010, making 2014 the fourth straight year of slow growth.President Dilma Rousseff’s supporters contend that the public spending has worked, helping to keep unemployment at historical lows and preventing what would have been a much worse economic slowdown had the government not pumped its considerable resources into infrastructure development.Still, a growing chorus of critics argues that the inability to finish big infrastructure projects reveals weaknesses in Brazil’s model of state capitalism. First, they say, Brazil gives extraordinary influence to a web of state-controlled companies, banks and pension funds to invest in ill-advised projects. Then other bastions of the vast public bureaucracy cripple projects with audits and lawsuits.“Some ventures never deserved public money in the first place,” said Sérgio Lazzarini, an economist at Insper, a São Paulo business school, pointing to the millions in state financing for the overhaul of the Glória hotel in Rio, owned until recently by a mining tycoon, Eike Batista. The project was left unfinished, unable to open for the World Cup, when Mr. Batista’s business empire crumbled last year. “For infrastructure projects which deserve state support and get it,” Mr. Lazzarini continued, “there’s the daunting task of dealing with the risks that the state itself creates.”The Transnordestina, a railroad begun in 2006 here in northeast Brazil, illustrates some of the pitfalls plaguing projects big and small. Scheduled to be finished in 2010 at a cost of about $1.8 billion, the railroad, designed to stretch more than 1,000 miles, is now expected to cost at least $3.2 billion, with most financing from state banks. Officials say it should be completed around 2016. But with work sites abandoned because of audits and other setbacks months ago in and around Paulistana, a town in Piauí, one of Brazil’s poorest states, even that timeline seems optimistic. Long stretches where freight trains were already supposed to be running stand deserted. Wiry vaqueiros, or cowboys, herd cattle in the shadow of ghostly railroad bridges that tower 150 feet above parched valleys. “Thieves are pillaging metal from the work sites,” said Adailton Vieira da Silva, 42, an electrician who labored with thousands of others before work halted last year. “Now there are just these bridges left in the middle of nowhere.”Brazil’s transportation minister, César Borges, expressed exasperation with the delays in finishing the railroad, which is needed to transport soybean harvests to port. He listed the bureaucracies that delay projects like the Transnordestina: the Federal Court of Accounts; the Office of the Comptroller General; an environmental protection agency; an institute protecting archaeological patrimony; agencies protecting the rights of indigenous peoples and descendants of escaped slaves; and the Public Ministry, a body of independent prosecutors. Still, Mr. Borges insisted, “Projects get delayed in countries around the world, not just Brazil.”Some economists contend that the way Brazil is investing may be hampering growth instead of supporting it. The authorities encouraged energy companies to build wind farms, but dozens cannot operate because they lack transmission lines to connect to the electricity grid. Meanwhile, manufacturers worry over potential electricity rationing as reservoirs at hydroelectric dams run dry amid a drought.Then there is the extraterrestrial museum in Varginha, a city in southeast Brazil where residents claimed to have seen an alien in 1996. Officials secured federal money to build the museum, but now all that remains of the unfinished project is the rusting carcass of what looks like a flying saucer. “That museum,” said Roberto Macedo, an economist at the University of São Paulo, “is an insult to both extraterrestrials and the terrestrial beings like ourselves who foot the bill for yet another project failing to deliver.”Adapted from www.nytimes.com/April 12, 2014.
According to the article, 2014 has been the fourth year ofDBFFA1C7-BB Inglês
Aspectos linguísticos | Linguistic aspectsUniversidade do Estado da Bahia · 2014DifícilEntre para guardar nos favoritos
SCHULZ, Peanuts. Disponível em: . Acesso em: 15 nov. 2014.
The only word or expression from the cartoon that has not been correctly defined isDBF54635-BB Inglês
Interpretação de texto | Reading comprehensionUniversidade do Estado da Bahia · 2014DifícilEntre para guardar nos favoritos
SCHULZ, Peanuts. Disponível em: . Acesso em: 15 nov. 2014.
Snoopy started feeling badDBC13564-BB Português
Denotação e ConotaçãoUniversidade do Estado da Bahia · 2014DifícilEntre para guardar nos favoritos
BLACH, Mateus. Patrimônio Cultural, parte II: a contemporaneidade. Disponível em:. Acesso em: 9 nov. 2014.
É exemplo de linguagem conotativa o fragmento apresentado na alternativa4A487A4D-BA Português
Interpretação de TextosUERJ · 2014DifícilEntre para guardar nos favoritos
O título Canção do ver reúne duas esferas diferentes dos sentidos humanos: audição e visão.No entanto, no decorrer do poema, a visão predomina sobre a audição.Os dois elementos que confirmam isso são:EC8F625D-B9 Português
Interpretação de TextosUniversidade Virtual de São Paulo · 2014DifícilEntre para guardar nos favoritosOs textos Retrato e A Lista, abaixo, dialogam porque tratam do mesmo tema. Leia-os atentamente para responder à questão.
Retrato
Eu não tinha este rosto de hoje,
assim calmo, assim triste, assim magro,
nem estes olhos tão vazios,
nem o lábio amargo.
Eu não tinha estas mãos sem força,
tão paradas e frias e mortas;
eu não tinha este coração
que nem se mostra.
Eu não dei por esta mudança,
tão simples, tão certa, tão fácil:
─ Em que espelho ficou perdida
a minha face?
(Cecília Meireles, Poesia, p.19-20)
A Lista
Faça uma lista de grandes amigos
Quem você mais via há dez anos atrás
Quantos você ainda vê todo dia
Quantos você já não encontra mais...
Faça uma lista dos sonhos que tinha
Quantos você desistiu de sonhar!
Quantos amores jurados pra sempre
Quantos você conseguiu preservar...
Onde você ainda se reconhece
Na foto passada ou no espelho de agora?
Hoje é do jeito que achou que seria
Quantos amigos você jogou fora?
Quantos mistérios que você sondava
Quantos você conseguiu entender?
Quantos segredos que você guardava
Hoje são bobos ninguém quer saber?
Quantas mentiras você condenava?
Quantas você teve que cometer?
Quantos defeitos sanados com o tempo
Eram o melhor que havia em você?
Quantas canções que você não cantava
Hoje assovia pra sobreviver?
Quantas pessoas que você amava
Hoje acredita que amam você?
(Oswaldo Montenegro www.letras.mus.br)
Analise os pares dos versos: os dois primeiros, transcritos do poema Retrato; os outros dois, transcritos da letra da música A Lista.I. “Eu não tinha este rosto de hoje,assim calmo, assim triste, assim magro,”“Onde você ainda se reconheceNa foto passada ou no espelho de agora?”II. “nem estes olhos tão vazios,nem o lábio amargo”“Faça uma lista dos sonhos que tinhaQuantos você desistiu de sonhar!”III. “eu não tinha este coraçãoque nem se mostra.”“Quantas pessoas que você amavaHoje acredita que amam você?”IV. “Eu não dei por esta mudança,tão simples, tão certa, tão fácil:”“Quantas canções que você não cantavaHoje assovia pra sobreviver?”Os pares que, interpretados, têm o mesmo significado são os contidos emEC74D91A-B9 Português
RegênciaUniversidade Virtual de São Paulo · 2014DifícilEntre para guardar nos favoritosDe acordo com a norma-padrão da Língua Portuguesa e com relação à regência verbal, assinale a alternativa incorreta.EC67AC06-B9 Português
Interpretação de TextosUniversidade Virtual de São Paulo · 2014DifícilEntre para guardar nos favoritosTem gerado grande polêmica a simplificação da linguagem de obras de Machado de Assis e de José de Alencar feita pela autora de textos infanto-juvenis Patrícia E. Secco. O pretexto, segundo a escritora, é “levar boa leitura a quem não lê, a jovens e adultos já alfabetizados que não têm acesso ao livro”. Como exemplo dessa simplificação, tem-se a palavra “sagacidade”, empregada por Machado de Assis no conto “O Alienista”, que foi substituída por “esperteza”. Alguns estudiosos argumentam que ambas as palavras não possuem a mesma conotação, pois “sagacidade” remete à perspicácia, à sensatez, enquanto “esperteza” tem, em muitos casos, conotação pejorativa, referindo-se à habilidade maliciosa (“o jeitinho brasileiro”). Baseando-se no exposto acima, assinale a alternativa cuja palavra destacada representa a melhor correspondência sinonímica com a palavra que está entre parênteses.6B62E169-B9 Português
ParêntesesUECE · 2014DifícilEntre para guardar nos favoritos
Atente ao trecho abaixo e ao que é dito sobre ele.
“Já estou chegando, ou já cheguei, à altura da vida em que tudo de bom era no meu tempo; meu e dos outros coroas. Acho inadmissível e mesmo chocante (no sentido antigo) um coroa não ser reacionário. Somos uma força histórica de grande valor. Se não agíssemos com o vigor necessário — evidentemente o condizente com a nossa condição provecta —, tudo sairia fora de controle, mais do que já está.” (linhas 50-58)
I. O trecho todo é um grande parêntese sem a marcação gráfica chamada parêntese.
II. Os longos parênteses dificultam a compreensão dos textos. A leitura de textos com essa estrutura exige muita atenção.
III. Uma possível omissão dos parênteses enfraqueceria o texto em termos argumentativos.
Está correto o que se diz em
E22136EA-B8 Português
Figuras de LinguagemUECE · 2014DifícilEntre para guardar nos favoritosJorge de Lima (*1893, em União-AL †1953, no Rio de Janeiro), poeta, mas também médico e pintor, compôs seus primeiros poemas sob a égide passadista. Em 1925, no entanto, adere ao Modernismo, publicando um folheto intitulado O mundo do menino impossível, onde reúne alguns de seus poemas livres. O ano de 1928 foi o de Essa negra Fulô, talvez sua obra mais lida. O ano de 1935 é marcado por sua conversão ao Catolicismo. Passa, a partir de então, a construir uma obra marcada por uma temática cristã de sentido bíblico e apocalíptico. Em 1952, lança Invenção de Orfeu, um longo poema hermético dividido em 10 partes ou cantos, como Os Lusíadas, de Camões, por meio do qual o poeta, segundo suas palavras, queria modernizar a epopeia clássica. São ainda palavras de Jorge de Lima: “A ideia central desse poema [Invenção de Orfeu] é a epopeia do poeta olhado como herói diante das vicissitudes do mundo através do tempo e do espaço. O que atravessa o poema de ponta a ponta é o drama da Queda. Sem a Queda não haveria história, não haveria Epopeia. O poeta é o seu herói”. O texto 3 que vem a seguir foi extraído desse grande poema intitulado Invenção de Orfeu.(Observação: Orfeu, personagem da mitologia grega, é considerado o músico por excelência, o músico e o poeta. Tocava lira e cítara, da qual teria sido o inventor.)
(LIMA, Jorge de. In: Invenção de Orfeu. Rio deJaneiro: Edições de Ouro, 1967. p. 57-58.)
Assinale a opção que traz um comentário INCORRETO sobre o texto 3.E21E5770-B8 Português
Interpretação de TextosUECE · 2014DifícilEntre para guardar nos favoritosJorge de Lima (*1893, em União-AL †1953, no Rio de Janeiro), poeta, mas também médico e pintor, compôs seus primeiros poemas sob a égide passadista. Em 1925, no entanto, adere ao Modernismo, publicando um folheto intitulado O mundo do menino impossível, onde reúne alguns de seus poemas livres. O ano de 1928 foi o de Essa negra Fulô, talvez sua obra mais lida. O ano de 1935 é marcado por sua conversão ao Catolicismo. Passa, a partir de então, a construir uma obra marcada por uma temática cristã de sentido bíblico e apocalíptico. Em 1952, lança Invenção de Orfeu, um longo poema hermético dividido em 10 partes ou cantos, como Os Lusíadas, de Camões, por meio do qual o poeta, segundo suas palavras, queria modernizar a epopeia clássica. São ainda palavras de Jorge de Lima: “A ideia central desse poema [Invenção de Orfeu] é a epopeia do poeta olhado como herói diante das vicissitudes do mundo através do tempo e do espaço. O que atravessa o poema de ponta a ponta é o drama da Queda. Sem a Queda não haveria história, não haveria Epopeia. O poeta é o seu herói”. O texto 3 que vem a seguir foi extraído desse grande poema intitulado Invenção de Orfeu.(Observação: Orfeu, personagem da mitologia grega, é considerado o músico por excelência, o músico e o poeta. Tocava lira e cítara, da qual teria sido o inventor.)
(LIMA, Jorge de. In: Invenção de Orfeu. Rio deJaneiro: Edições de Ouro, 1967. p. 57-58.)
Entre os versos 1 e 2, infere-se uma relação semântica deE21860DB-B8 Português
Interpretação de TextosUECE · 2014DifícilEntre para guardar nos favoritosJorge de Lima (*1893, em União-AL †1953, no Rio de Janeiro), poeta, mas também médico e pintor, compôs seus primeiros poemas sob a égide passadista. Em 1925, no entanto, adere ao Modernismo, publicando um folheto intitulado O mundo do menino impossível, onde reúne alguns de seus poemas livres. O ano de 1928 foi o de Essa negra Fulô, talvez sua obra mais lida. O ano de 1935 é marcado por sua conversão ao Catolicismo. Passa, a partir de então, a construir uma obra marcada por uma temática cristã de sentido bíblico e apocalíptico. Em 1952, lança Invenção de Orfeu, um longo poema hermético dividido em 10 partes ou cantos, como Os Lusíadas, de Camões, por meio do qual o poeta, segundo suas palavras, queria modernizar a epopeia clássica. São ainda palavras de Jorge de Lima: “A ideia central desse poema [Invenção de Orfeu] é a epopeia do poeta olhado como herói diante das vicissitudes do mundo através do tempo e do espaço. O que atravessa o poema de ponta a ponta é o drama da Queda. Sem a Queda não haveria história, não haveria Epopeia. O poeta é o seu herói”. O texto 3 que vem a seguir foi extraído desse grande poema intitulado Invenção de Orfeu.(Observação: Orfeu, personagem da mitologia grega, é considerado o músico por excelência, o músico e o poeta. Tocava lira e cítara, da qual teria sido o inventor.)
(LIMA, Jorge de. In: Invenção de Orfeu. Rio deJaneiro: Edições de Ouro, 1967. p. 57-58.)
Compare os dois poemas e atente ao que se diz.I. O poema de Jorge de Lima é direcionado para o plano do espírito, enquanto o de Guilherme de Almeida é direcionado para o plano dos sentimentos.II. O poema de Jorge de Lima tem uma dicção universal, enquanto o de Guilherme de Almeida desenvolve-se em uma linha particular, intimista.III. O poema de Jorge de Lima traz uma mensagem de aceitação e fé; o de Guilherme de Almeida, uma mensagem de ceticismo e desânimo.Está correto o que se diz emE20DD3CB-B8 Português
Flexão verbal de modo (indicativo, subjuntivo, imperativo)UECE · 2014DifícilEntre para guardar nos favoritos
(Guilherme de Almeida. In Acaso.)
Geralmente o binarismo do plano do conteúdo é revelado no plano da expressão. Assinale a opção em que o binarismo do conteúdo do poema NÃO se reflete no nível da forma.C06475DC-B8 Inglês
Interpretação de texto | Reading comprehensionUECE · 2014DifícilEntre para guardar nos favoritosTEXT
For a $14.95 monthly membership, the website Lumosity promises to “train” your brain with games designed to stave off mental decline. Users view a quick succession of bird images and numbers to test attention span, for instance, or match increasingly complex tile patterns to challenge memory.
While Lumosity is perhaps the best known of the brain-game websites, with 50 million subscribers in 180 countries, the cognitive training business is booming. Happy Neuron of Mountain View, Calif., promises “brain fitness for life.” Cogmed, owned by the British education company Pearson, says its training program will give students “improved attention and capacity for learning.” The Israeli firm NeurMuch of the focus of theonix is developing a brain stimulation and cognitive training program that the company calls a “new hope for Alzheimer’s disease.”
Much of the focus of the brain fitness business has been on helping children with attention-deficit problems, and on improving cognitive function and academic performance in healthy children and adults. An effective way to stave off memory loss or prevent Alzheimer’s — particularly
The problem, Dr. Doraiswa if it were a simple website or video game — is the “holy grail” of neuroscience, said Dr. Murali Doraiswamy, director of the neurocognitive disorders program at Duke Institute for Brain Sciences. The problem, Dr. Doraiswamy added, is that the science of cognitive training has not kept up with the hype. “Almost all the marketing claims made by all the companies go beyond the data,” he said. “We need large national studies before you can conclude that it’s ready for prime time.”
For centuries, scientists believed that most brain development occurred in the first few years of life — that by adulthood the brain was largely immutable. But over the past two decades, studies on animals and humans have found that the brain continues to form new neural connections throughout life. But questions remain whether an intervention that challenges the brain — a puzzle, studying a new language or improving skill on a video game — can really raise intelligence or stave off normal memory loss.
A series of studies in recent years has suggested that certain types of game training can improve a person’s cognitive performance. In February 2013, however, an analysis of 23 of the best studies on brain training, led by the University of Oslo researcher Monica Melby-Lervag, concluded that while players do get better, the increase in skill hasn’t been shown to transfer to other tasks. In other words, playing Sudoku or an online matching game makes you better at the game, but it doesn’t make you better at math or help you remember names or where you left your car keys.
But other studies have been more encouraging. Last September, the journal Nature published a study by researchers at the University of California, San Francisco, that showed a driving game did improve short-term memory and longterm focus in older adults. The findings are significant because the research found that improvements in performance weren’t limited to the game, but also appeared to be linked to a strengthening of older brains over all, helping them to perform better at other memory and attention tasks.
In addition, brain monitoring during the study showed that in older participants, game training led to bursts in brain waves associated with attention; the patterns were similar to those seen in much younger brains.
Earlier this year, the National Institutes of Health invited applications to more rigorously test brain fitness training to stave off cognitive decline. Researchers say they hope the effort will help establish a consistent standard for determining whether a brain-training intervention works.
But while the science remains unclear, entrepreneurs have seized on what is likely to be a sizable marketing opportunity. In May, hundreds of researchers and businesses will gather in San Francisco for the NeuroGaming Conference and Expo to explore the latest research and the newest technology.
While there is no real risk to participating in the many unproven brain-training games available online and through smartphones, experts say, consumers should know that the scientific jury is still out on whether they are really boosting brain health or just paying hundreds of dollars to get better at a game.
“I’m not convinced there is a huge difference between buying a $300 subscription to a gaming company versus you yourself doing challenging things on your own, like attending a lecture or learning an instrument,” Dr. Doraiswamy said. “Each person has to personalize for themselves what they find fun and challenging and what they can stick with.”
From: www.nytimes.com, March 10, 2014
While scientific research and brain gaming companies are not working with the same assumptions, Dr. Doraiswamy recommends that peopleC060EFE2-B8 Inglês
Interpretação de texto | Reading comprehensionUECE · 2014DifícilEntre para guardar nos favoritosTEXT
For a $14.95 monthly membership, the website Lumosity promises to “train” your brain with games designed to stave off mental decline. Users view a quick succession of bird images and numbers to test attention span, for instance, or match increasingly complex tile patterns to challenge memory.
While Lumosity is perhaps the best known of the brain-game websites, with 50 million subscribers in 180 countries, the cognitive training business is booming. Happy Neuron of Mountain View, Calif., promises “brain fitness for life.” Cogmed, owned by the British education company Pearson, says its training program will give students “improved attention and capacity for learning.” The Israeli firm NeurMuch of the focus of theonix is developing a brain stimulation and cognitive training program that the company calls a “new hope for Alzheimer’s disease.”
Much of the focus of the brain fitness business has been on helping children with attention-deficit problems, and on improving cognitive function and academic performance in healthy children and adults. An effective way to stave off memory loss or prevent Alzheimer’s — particularly
The problem, Dr. Doraiswa if it were a simple website or video game — is the “holy grail” of neuroscience, said Dr. Murali Doraiswamy, director of the neurocognitive disorders program at Duke Institute for Brain Sciences. The problem, Dr. Doraiswamy added, is that the science of cognitive training has not kept up with the hype. “Almost all the marketing claims made by all the companies go beyond the data,” he said. “We need large national studies before you can conclude that it’s ready for prime time.”
For centuries, scientists believed that most brain development occurred in the first few years of life — that by adulthood the brain was largely immutable. But over the past two decades, studies on animals and humans have found that the brain continues to form new neural connections throughout life. But questions remain whether an intervention that challenges the brain — a puzzle, studying a new language or improving skill on a video game — can really raise intelligence or stave off normal memory loss.
A series of studies in recent years has suggested that certain types of game training can improve a person’s cognitive performance. In February 2013, however, an analysis of 23 of the best studies on brain training, led by the University of Oslo researcher Monica Melby-Lervag, concluded that while players do get better, the increase in skill hasn’t been shown to transfer to other tasks. In other words, playing Sudoku or an online matching game makes you better at the game, but it doesn’t make you better at math or help you remember names or where you left your car keys.
But other studies have been more encouraging. Last September, the journal Nature published a study by researchers at the University of California, San Francisco, that showed a driving game did improve short-term memory and longterm focus in older adults. The findings are significant because the research found that improvements in performance weren’t limited to the game, but also appeared to be linked to a strengthening of older brains over all, helping them to perform better at other memory and attention tasks.
In addition, brain monitoring during the study showed that in older participants, game training led to bursts in brain waves associated with attention; the patterns were similar to those seen in much younger brains.
Earlier this year, the National Institutes of Health invited applications to more rigorously test brain fitness training to stave off cognitive decline. Researchers say they hope the effort will help establish a consistent standard for determining whether a brain-training intervention works.
But while the science remains unclear, entrepreneurs have seized on what is likely to be a sizable marketing opportunity. In May, hundreds of researchers and businesses will gather in San Francisco for the NeuroGaming Conference and Expo to explore the latest research and the newest technology.
While there is no real risk to participating in the many unproven brain-training games available online and through smartphones, experts say, consumers should know that the scientific jury is still out on whether they are really boosting brain health or just paying hundreds of dollars to get better at a game.
“I’m not convinced there is a huge difference between buying a $300 subscription to a gaming company versus you yourself doing challenging things on your own, like attending a lecture or learning an instrument,” Dr. Doraiswamy said. “Each person has to personalize for themselves what they find fun and challenging and what they can stick with.”
From: www.nytimes.com, March 10, 2014
Recent research undertaken with older adults at the University of California presented significant results in relation to cognitive training using a certain driving game. They are significant due to the evidence thatC05AE75A-B8 Inglês
Interpretação de texto | Reading comprehensionUECE · 2014DifícilEntre para guardar nos favoritosTEXT
For a $14.95 monthly membership, the website Lumosity promises to “train” your brain with games designed to stave off mental decline. Users view a quick succession of bird images and numbers to test attention span, for instance, or match increasingly complex tile patterns to challenge memory.
While Lumosity is perhaps the best known of the brain-game websites, with 50 million subscribers in 180 countries, the cognitive training business is booming. Happy Neuron of Mountain View, Calif., promises “brain fitness for life.” Cogmed, owned by the British education company Pearson, says its training program will give students “improved attention and capacity for learning.” The Israeli firm NeurMuch of the focus of theonix is developing a brain stimulation and cognitive training program that the company calls a “new hope for Alzheimer’s disease.”
Much of the focus of the brain fitness business has been on helping children with attention-deficit problems, and on improving cognitive function and academic performance in healthy children and adults. An effective way to stave off memory loss or prevent Alzheimer’s — particularly
The problem, Dr. Doraiswa if it were a simple website or video game — is the “holy grail” of neuroscience, said Dr. Murali Doraiswamy, director of the neurocognitive disorders program at Duke Institute for Brain Sciences. The problem, Dr. Doraiswamy added, is that the science of cognitive training has not kept up with the hype. “Almost all the marketing claims made by all the companies go beyond the data,” he said. “We need large national studies before you can conclude that it’s ready for prime time.”
For centuries, scientists believed that most brain development occurred in the first few years of life — that by adulthood the brain was largely immutable. But over the past two decades, studies on animals and humans have found that the brain continues to form new neural connections throughout life. But questions remain whether an intervention that challenges the brain — a puzzle, studying a new language or improving skill on a video game — can really raise intelligence or stave off normal memory loss.
A series of studies in recent years has suggested that certain types of game training can improve a person’s cognitive performance. In February 2013, however, an analysis of 23 of the best studies on brain training, led by the University of Oslo researcher Monica Melby-Lervag, concluded that while players do get better, the increase in skill hasn’t been shown to transfer to other tasks. In other words, playing Sudoku or an online matching game makes you better at the game, but it doesn’t make you better at math or help you remember names or where you left your car keys.
But other studies have been more encouraging. Last September, the journal Nature published a study by researchers at the University of California, San Francisco, that showed a driving game did improve short-term memory and longterm focus in older adults. The findings are significant because the research found that improvements in performance weren’t limited to the game, but also appeared to be linked to a strengthening of older brains over all, helping them to perform better at other memory and attention tasks.
In addition, brain monitoring during the study showed that in older participants, game training led to bursts in brain waves associated with attention; the patterns were similar to those seen in much younger brains.
Earlier this year, the National Institutes of Health invited applications to more rigorously test brain fitness training to stave off cognitive decline. Researchers say they hope the effort will help establish a consistent standard for determining whether a brain-training intervention works.
But while the science remains unclear, entrepreneurs have seized on what is likely to be a sizable marketing opportunity. In May, hundreds of researchers and businesses will gather in San Francisco for the NeuroGaming Conference and Expo to explore the latest research and the newest technology.
While there is no real risk to participating in the many unproven brain-training games available online and through smartphones, experts say, consumers should know that the scientific jury is still out on whether they are really boosting brain health or just paying hundreds of dollars to get better at a game.
“I’m not convinced there is a huge difference between buying a $300 subscription to a gaming company versus you yourself doing challenging things on your own, like attending a lecture or learning an instrument,” Dr. Doraiswamy said. “Each person has to personalize for themselves what they find fun and challenging and what they can stick with.”
From: www.nytimes.com, March 10, 2014
According to Dr. Doraiswamy, from the Duke Institute for Brain Sciences, the problem about many of the cognitive training programs being offered nowadays is thatBFD3A4D6-B8 Português
Gêneros TextuaisUECE · 2014DifícilEntre para guardar nos favoritosO texto 2 (subdividido em seções) faz uma reflexão sobre a maneira como se comporta, em determinado momento, a sociedade brasileira, que, mais cedo ou mais tarde, teria que integrar negros e mulatos.
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Releia o parágrafo 2 do texto 1. Você deve ter percebido que o Paulo César de que fala o texto 2 é o mesmo Paulo César de que fala Nélson Rodrigues no texto 1. Cotejando esses dois textos, marque a opção INCORRETA.BFC2769D-B8 Português
Figuras de LinguagemUECE · 2014DifícilEntre para guardar nos favoritos
Sobre o trecho seguinte: “Há um tipo de vaia que explode como uma força da natureza. Sim. Uma vaia que venta, chove, troveja e relampeja” (linhas 14-16), é INCORRETO afirmar queBFBD0B94-B8 Português
Interpretação de TextosUECE · 2014DifícilEntre para guardar nos favoritos
Assinale a opção que apresenta uma voz que NÃO é a voz do enunciador.
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Verbos | VerbosUECE · 2014DifícilEntre para guardar nos favoritosLa forma verbal de la frase “María ha llegado hoy” está en el