Questõesde FATEC

THE WORLD'S MOST VALUABLE SPORTS TEAM IS drowning in debt. English football powerhouse Manchester United (Forbes estimates its worth at $1.8 billion) had to raise some $800 million in a bond issue last month, which is still $340 million shy of its total debts. Man U needed the bond to pay off the millions that American businessman 

Malcolm Glazer borrowed to purchase the team in 2005. But in the first three weeks since the bond was issued it lost nearly 10 percent of its value, a sign that, even though Man U's revenues reached a record $444 million last year, the market is growing wary of debt, particularly the European variety

Man U isn't alone. Debt levels have also skyrocketed among rivals like liverpool, calling into question the business model of English Premier League football. Each year the three worst teams are banished to a lower league, where vital broadcasting revenues are dramatically reduced. This puts huge pressure on clubs to compete for the best players, who now regularly fetch more than $50 million a year. Unlike in the U.S., there's no system of collective bargaining to restrain wages. As a result, the total salary bill for the Premier League has risen more than 20 percent since 2008. This has created a vicious cycle of rising debt among clubs that must spend extravagantly on players to ensure increased revenue. Any team attempting to be frugal becomes more likely to end up with lower revenue. It's become a game of who can spend the most, and it probably won't end well. 

THE WORLD'S MOST VALUABLE SPORTS TEAM IS drowning in debt. English football powerhouse Manchester United (Forbes estimates its worth at $1.8 billion) had to raise some $800 million in a bond issue last month, which is still $340 million shy of its total debts. Man U needed the bond to pay off the millions that American businessman 

Malcolm Glazer borrowed to purchase the team in 2005. But in the first three weeks since the bond was issued it lost nearly 10 percent of its value, a sign that, even though Man U's revenues reached a record $444 million last year, the market is growing wary of debt, particularly the European variety

Man U isn't alone. Debt levels have also skyrocketed among rivals like liverpool, calling into question the business model of English Premier League football. Each year the three worst teams are banished to a lower league, where vital broadcasting revenues are dramatically reduced. This puts huge pressure on clubs to compete for the best players, who now regularly fetch more than $50 million a year. Unlike in the U.S., there's no system of collective bargaining to restrain wages. As a result, the total salary bill for the Premier League has risen more than 20 percent since 2008. This has created a vicious cycle of rising debt among clubs that must spend extravagantly on players to ensure increased revenue. Any team attempting to be frugal becomes more likely to end up with lower revenue. It's become a game of who can spend the most, and it probably won't end well. 

THE DAYS AFTER HAITI'S EARTHQUAKE brought joyous reunions for some families. Others faced the grim reality that they'd been suddenly robbed of parents or offspring. But for Haiti's 225,000 restaveks, or indentured children, the quake brought only an uncertain future.

Slavery-which ended with independence in 1804-is illegal in Haiti. And technically, restaveks are not slaves. The institution has its roots in the Caribbean tradition of child lending between families (usually relatives) to pitch in with extra work, care for the elderly or sick, or to provide opportunity to a child from a poor family. Generally, rural parents send their children to live with wealthier families in the cities. In exchange for domestic labor, the children are supposed to receive lodging, food, clothing, medicine, and-most importantly-education. In as many as half of the cases, they do (though classifying treatment in private homes is notoriously difficult). The unlucky ones, called restaveks-from the French rester avec, or "to stay with" -are loaned through normal channels but denied schooling and subject to abuse and degradation. This phenomenon has spiked in modern Haiti, as more and more children end up with equally impoverished families in the slums.

Before the quake, up to 22 percent of Haitian homes contained restaveks, according to a study funded by USAID. Keeping restaveks is illegal, but child loans are not and, given the extent of Haiti's governmental dysfunction, it's hard to tell which cases are which. Now that the quake has thrown family networks into disarray, the flimsy social ties supporting restaveks are likely to break down. "For families struggling in the wake of a catastrophe, restavek kids are the first to go; says Glenn Smucker, an anthropologist who specializes in development work in Haiti. "Their parents are not there to watch out for them, so they're far more vulnerable" to desertion and trafficking. 

But even as the numbers of abandoned restaveks swell, the demand for their services is likely to decrease. A mass exodus of residents from Port-au-Prince is reversing decades of migratory trends. If the shift sticks, it means there will be less need for restaveks in the city. But it's also possible that families suffering from the quake's economic aftershocks will feel extra pressure to lend out their children, even as it becomes more likely they'll end up as restaveks. Which, combined with a spike in new orphans, means Haiti will likely see a rise in the number of its street children in the years to come.

(By Katie Paul - Newsweek)

THE DAYS AFTER HAITI'S EARTHQUAKE brought joyous reunions for some families. Others faced the grim reality that they'd been suddenly robbed of parents or offspring. But for Haiti's 225,000 restaveks, or indentured children, the quake brought only an uncertain future.

Slavery-which ended with independence in 1804-is illegal in Haiti. And technically, restaveks are not slaves. The institution has its roots in the Caribbean tradition of child lending between families (usually relatives) to pitch in with extra work, care for the elderly or sick, or to provide opportunity to a child from a poor family. Generally, rural parents send their children to live with wealthier families in the cities. In exchange for domestic labor, the children are supposed to receive lodging, food, clothing, medicine, and-most importantly-education. In as many as half of the cases, they do (though classifying treatment in private homes is notoriously difficult). The unlucky ones, called restaveks-from the French rester avec, or "to stay with" -are loaned through normal channels but denied schooling and subject to abuse and degradation. This phenomenon has spiked in modern Haiti, as more and more children end up with equally impoverished families in the slums.

Before the quake, up to 22 percent of Haitian homes contained restaveks, according to a study funded by USAID. Keeping restaveks is illegal, but child loans are not and, given the extent of Haiti's governmental dysfunction, it's hard to tell which cases are which. Now that the quake has thrown family networks into disarray, the flimsy social ties supporting restaveks are likely to break down. "For families struggling in the wake of a catastrophe, restavek kids are the first to go; says Glenn Smucker, an anthropologist who specializes in development work in Haiti. "Their parents are not there to watch out for them, so they're far more vulnerable" to desertion and trafficking. 

But even as the numbers of abandoned restaveks swell, the demand for their services is likely to decrease. A mass exodus of residents from Port-au-Prince is reversing decades of migratory trends. If the shift sticks, it means there will be less need for restaveks in the city. But it's also possible that families suffering from the quake's economic aftershocks will feel extra pressure to lend out their children, even as it becomes more likely they'll end up as restaveks. Which, combined with a spike in new orphans, means Haiti will likely see a rise in the number of its street children in the years to come.

(By Katie Paul - Newsweek)

THE DAYS AFTER HAITI'S EARTHQUAKE brought joyous reunions for some families. Others faced the grim reality that they'd been suddenly robbed of parents or offspring. But for Haiti's 225,000 restaveks, or indentured children, the quake brought only an uncertain future.

Slavery-which ended with independence in 1804-is illegal in Haiti. And technically, restaveks are not slaves. The institution has its roots in the Caribbean tradition of child lending between families (usually relatives) to pitch in with extra work, care for the elderly or sick, or to provide opportunity to a child from a poor family. Generally, rural parents send their children to live with wealthier families in the cities. In exchange for domestic labor, the children are supposed to receive lodging, food, clothing, medicine, and-most importantly-education. In as many as half of the cases, they do (though classifying treatment in private homes is notoriously difficult). The unlucky ones, called restaveks-from the French rester avec, or "to stay with" -are loaned through normal channels but denied schooling and subject to abuse and degradation. This phenomenon has spiked in modern Haiti, as more and more children end up with equally impoverished families in the slums.

Before the quake, up to 22 percent of Haitian homes contained restaveks, according to a study funded by USAID. Keeping restaveks is illegal, but child loans are not and, given the extent of Haiti's governmental dysfunction, it's hard to tell which cases are which. Now that the quake has thrown family networks into disarray, the flimsy social ties supporting restaveks are likely to break down. "For families struggling in the wake of a catastrophe, restavek kids are the first to go; says Glenn Smucker, an anthropologist who specializes in development work in Haiti. "Their parents are not there to watch out for them, so they're far more vulnerable" to desertion and trafficking. 

But even as the numbers of abandoned restaveks swell, the demand for their services is likely to decrease. A mass exodus of residents from Port-au-Prince is reversing decades of migratory trends. If the shift sticks, it means there will be less need for restaveks in the city. But it's also possible that families suffering from the quake's economic aftershocks will feel extra pressure to lend out their children, even as it becomes more likely they'll end up as restaveks. Which, combined with a spike in new orphans, means Haiti will likely see a rise in the number of its street children in the years to come.

(By Katie Paul - Newsweek)

THE DAYS AFTER HAITI'S EARTHQUAKE brought joyous reunions for some families. Others faced the grim reality that they'd been suddenly robbed of parents or offspring. But for Haiti's 225,000 restaveks, or indentured children, the quake brought only an uncertain future.

Slavery-which ended with independence in 1804-is illegal in Haiti. And technically, restaveks are not slaves. The institution has its roots in the Caribbean tradition of child lending between families (usually relatives) to pitch in with extra work, care for the elderly or sick, or to provide opportunity to a child from a poor family. Generally, rural parents send their children to live with wealthier families in the cities. In exchange for domestic labor, the children are supposed to receive lodging, food, clothing, medicine, and-most importantly-education. In as many as half of the cases, they do (though classifying treatment in private homes is notoriously difficult). The unlucky ones, called restaveks-from the French rester avec, or "to stay with" -are loaned through normal channels but denied schooling and subject to abuse and degradation. This phenomenon has spiked in modern Haiti, as more and more children end up with equally impoverished families in the slums.

Before the quake, up to 22 percent of Haitian homes contained restaveks, according to a study funded by USAID. Keeping restaveks is illegal, but child loans are not and, given the extent of Haiti's governmental dysfunction, it's hard to tell which cases are which. Now that the quake has thrown family networks into disarray, the flimsy social ties supporting restaveks are likely to break down. "For families struggling in the wake of a catastrophe, restavek kids are the first to go; says Glenn Smucker, an anthropologist who specializes in development work in Haiti. "Their parents are not there to watch out for them, so they're far more vulnerable" to desertion and trafficking. 

But even as the numbers of abandoned restaveks swell, the demand for their services is likely to decrease. A mass exodus of residents from Port-au-Prince is reversing decades of migratory trends. If the shift sticks, it means there will be less need for restaveks in the city. But it's also possible that families suffering from the quake's economic aftershocks will feel extra pressure to lend out their children, even as it becomes more likely they'll end up as restaveks. Which, combined with a spike in new orphans, means Haiti will likely see a rise in the number of its street children in the years to come.

(By Katie Paul - Newsweek)

Considere o texto para responder a questão.

Durante muito tempo acreditou-se que os gases nobres eram muito estáveis, inertes e, portanto, não poderiam existir compostos desses elementos químicos. Entretanto, essa concepção mudou quando, em 1962, na Universidade de British Columbia, no Canadá, o primeiro composto de gás nobre foi obtido pela reação entre xenônio e hexafluoreto de platina, representada por:

Xe + PtF6 → Xe+ (PtF6)- 

Considere o texto para responder a questão.

Durante muito tempo acreditou-se que os gases nobres eram muito estáveis, inertes e, portanto, não poderiam existir compostos desses elementos químicos. Entretanto, essa concepção mudou quando, em 1962, na Universidade de British Columbia, no Canadá, o primeiro composto de gás nobre foi obtido pela reação entre xenônio e hexafluoreto de platina, representada por:

Xe + PtF6 → Xe+ (PtF6)-