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Q384163
Inglês
Texto associado
FOR CATS, A BIG GULP WITH A TOUCH OF THE TONGUE
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em: Acesso em: 20 nov. 2010.
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em:
O título “For cats, a big gulp with a touch of the tongue” resume como os gatos bebem água. Entretanto, o segredo dessa ação ocorre devido à
Q384162
Inglês
Texto associado
FOR CATS, A BIG GULP WITH A TOUCH OF THE TONGUE
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em: Acesso em: 20 nov. 2010.
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em:
The main goal of the scientific text above is to reveal how:
Q384161
Inglês
Texto associado
FOR CATS, A BIG GULP WITH A TOUCH OF THE TONGUE
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em: Acesso em: 20 nov. 2010.
It has taken four highly qualified engineers and a bunch of integral equations to figure it out, but we now know how cats drink. The answer is: very elegantly, and not at all the way you might suppose. Cats lap water so fast that the human eye cannot follow what is happening, which is why the trick had apparently escaped attention until now. With the use of high-speed photography, the neatness of the feline solution has been captured. The act of drinking may seem like no big deal for anyone who can fully close his mouth to create suction, as people can. But the various species that cannot do so - and that includes most adult carnivores - must resort to some other mechanism. Dog owners are familiar with the unseemly lapping noises that ensue when their thirsty pet meets a bowl of water. The dog is thrusting its tongue into the water, forming a crude cup with it and hauling the liquid back into the muzzle.
Cats, both big and little, are so much classier, according to new research by Pedro M. Reis and Roman Stocker of the Massachusetts Institute of Technology, joined by Sunghwan Jung of the Virginia Polytechnic Institute and Jeffrey M. Aristoff of Princeton. Writing in the Thursday issue of Science, the four engineers report that the cat’s lapping method depends on its instinctive ability to calculate the balance between opposing gravitational and inertial forces. What happens is that the cat darts its tongue, curving the upper side downward so that the tip lightly touches the surface of the water.
The tongue is then pulled upward at high speed, drawing a column of water behind it. Just at the moment that gravity finally overcomes the rush of the water and starts to pull the column down - snap! The cat’s jaws have closed over the jet of water and swallowed it. The cat laps four times a second - too fast for the human eye to see anything but a blur - and its tongue moves at a speed of one meter per second. Being engineers, the cat-lapping team next tested its findings with a machine that mimicked a cat’s tongue, using a glass disk at the end of a piston to serve as the tip. After calculating things like the Froude number and the aspect ratio, they were able to figure out how fast a cat should lap to get the greatest amount of water into its mouth. The cats, it turns out, were way ahead of them - they lap at just that speed. To the scientific mind, the next obvious question is whether bigger cats should lap at different speeds.
WADE, Nicholas. For cats, a big gulp with a touch of the tongue. Disponível em:
Qual é o significado do substantivo sublinhado na seguinte oração?
"The neatness of the feline solution has been captured".
"The neatness of the feline solution has been captured".
Q384160
Inglês
Leia o seguinte trecho.
"...The frenzy to collect more of those votes is causing Lula’s left-wing workers party to mull whether to back off its commitment to see abortion rights debated in congress,..."
Dentre as alternativas apresentadas, qual a que melhor traduz para o português as palavras grifadas?
"...The frenzy to collect more of those votes is causing Lula’s left-wing workers party to mull whether to back off its commitment to see abortion rights debated in congress,..."
Dentre as alternativas apresentadas, qual a que melhor traduz para o português as palavras grifadas?
Q384159
Inglês
Texto associado
ABORTION BECOMES ISSUE IN BRAZIL'S PRESIDENTIAL RUNOFF
As Brazil's charismatic President Luiz Inacio Lula da Silva makes a triumphant exit, having fostered a fast-growing economy that lifted millions out of poverty and pleased financial markets, his country seems more than ever to embody the word "progress" that is emblazoned across its national flag. But as the Oct. 31 run-off election to choose his successor approaches, the focus is shifting to one aspect of Brazilian society where many say there has been little progress: Abortion is still illegal, despite one in five Brazilian women undergoing the procedure in their lifetimes.
With religious-right votes up for grabs in the upcoming poll, the two remaining candidates and the leading party are backing down from earlier abortion-rights endorsements, leading abortion-rights advocates to say that votes are being traded for women's health. Two-thirds of Brazil's 191 million people are Roman Catholics, making it the world's largest Catholic nation. But the number of those professing evangelical beliefs, some 17 percent of the population, is growing fast.
The frenzy to collect more of those votes is causing Lula's left-wing Workers Party to mull whether to back off its commitment to see abortion rights debated in Congress, and the party's candidate, Dilma Rousseff, heavily favored to win, is distancing herself from abortion-rights comments she made before becoming a candidate.
"It will be really ugly if the Workers Party pulls abortion rights from its agenda," said Regina Soares, a spokeswoman for the abortion-rights group Catholics for the Right to Decide. "[Abortion] is a problem of a huge size, which has same importance as unemployment and homelessness," she said. Abortion is illegal in Brazil except in the case of rape or if the mother's life is in danger. Yet one in five Brazilian women under age 40 has had an abortion, the vast majority illegally. Half of those women end up in the hospital as the result of complications, said Marcelo Medeiros, an economist and sociologist who coordinated a 2009 government-funded abortion study. The abortion question shifted to the fore after Sunday's first-round presidential elections, in which Rousseff was expected to sail easily past the 50 percent mark that would have made a second round unnecessary. But she received 46.8 percent, forcing a runoff with centrist challenger Jose Serra at the end of the month. Support for the 62-year- old former guerrilla, Lula's chosen successor, eroded in part because the religious right aired ads portraying Rousseff as pro-abortion-rights, observers said. To shore up votes, the Workers Party is considering whether to yank its promise to see abortion rights debated in Congress. In his more recent position as Brazil's health minister, Serra, along with the Workers Party, has advocated for a debate on abortion in Congress in the name of public health. But during his campaign, Serra declared himself anti-abortion. Observers are split on whether the issue could prevent a Rousseff win. Alberto Almeida, director of market research group Instituto Analise, said voters don't see the difference between the abortion stances of Serra and Rousseff. "Abortion won't have a big role in the election because nobody has a clear position on abortion," Almeida said. But a Workers Party senator from Parana state said some of her party members could end up promoting legalized abortion, a position that could "cost the presidency," said Gleisi Hoffman, according to a Folha report. "While most Brazilians support abortion in special cases, the rest is "a gray area," Medeiros said.
Adapted from:
KELLER, Karen. Abortion Becomes Issue in Brazil's Presidential Runoff. Disponível em: http://www.aolnews.com/world/article/abortion-becomes-an- issue-in-brazils-presidential-runoff/19665625. Acesso em: 4 nov. 2010.
As Brazil's charismatic President Luiz Inacio Lula da Silva makes a triumphant exit, having fostered a fast-growing economy that lifted millions out of poverty and pleased financial markets, his country seems more than ever to embody the word "progress" that is emblazoned across its national flag. But as the Oct. 31 run-off election to choose his successor approaches, the focus is shifting to one aspect of Brazilian society where many say there has been little progress: Abortion is still illegal, despite one in five Brazilian women undergoing the procedure in their lifetimes.
With religious-right votes up for grabs in the upcoming poll, the two remaining candidates and the leading party are backing down from earlier abortion-rights endorsements, leading abortion-rights advocates to say that votes are being traded for women's health. Two-thirds of Brazil's 191 million people are Roman Catholics, making it the world's largest Catholic nation. But the number of those professing evangelical beliefs, some 17 percent of the population, is growing fast.
The frenzy to collect more of those votes is causing Lula's left-wing Workers Party to mull whether to back off its commitment to see abortion rights debated in Congress, and the party's candidate, Dilma Rousseff, heavily favored to win, is distancing herself from abortion-rights comments she made before becoming a candidate.
"It will be really ugly if the Workers Party pulls abortion rights from its agenda," said Regina Soares, a spokeswoman for the abortion-rights group Catholics for the Right to Decide. "[Abortion] is a problem of a huge size, which has same importance as unemployment and homelessness," she said. Abortion is illegal in Brazil except in the case of rape or if the mother's life is in danger. Yet one in five Brazilian women under age 40 has had an abortion, the vast majority illegally. Half of those women end up in the hospital as the result of complications, said Marcelo Medeiros, an economist and sociologist who coordinated a 2009 government-funded abortion study. The abortion question shifted to the fore after Sunday's first-round presidential elections, in which Rousseff was expected to sail easily past the 50 percent mark that would have made a second round unnecessary. But she received 46.8 percent, forcing a runoff with centrist challenger Jose Serra at the end of the month. Support for the 62-year- old former guerrilla, Lula's chosen successor, eroded in part because the religious right aired ads portraying Rousseff as pro-abortion-rights, observers said. To shore up votes, the Workers Party is considering whether to yank its promise to see abortion rights debated in Congress. In his more recent position as Brazil's health minister, Serra, along with the Workers Party, has advocated for a debate on abortion in Congress in the name of public health. But during his campaign, Serra declared himself anti-abortion. Observers are split on whether the issue could prevent a Rousseff win. Alberto Almeida, director of market research group Instituto Analise, said voters don't see the difference between the abortion stances of Serra and Rousseff. "Abortion won't have a big role in the election because nobody has a clear position on abortion," Almeida said. But a Workers Party senator from Parana state said some of her party members could end up promoting legalized abortion, a position that could "cost the presidency," said Gleisi Hoffman, according to a Folha report. "While most Brazilians support abortion in special cases, the rest is "a gray area," Medeiros said.
Adapted from:
KELLER, Karen. Abortion Becomes Issue in Brazil's Presidential Runoff. Disponível em: http://www.aolnews.com/world/article/abortion-becomes-an- issue-in-brazils-presidential-runoff/19665625. Acesso em: 4 nov. 2010.
According to Regina Soares women health is being traded by votes because: