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Wednesday 9 April 2014 - 8am PST
Not only do teenage mothers face hardships, but their babies are also at risk for certain adverse outcomes, such as increased medical risks and emotional, social and financial costs.
The latest Centers for Disease Control and Prevention (CDC) Vital Signs report on teen pregnancy has now been posted online, and the organization notes that it was created to "continue the dialogue about teen pregnancy and its burden on our nation's youth."
To arrive at their findings, the researchers examined birth data from the National Vital Statistics System, as well as adolescent health behavior data from the National Survey of Family Growth.
"Although we have made significant progress reducing teen pregnancy, far too many teens are still having babies," says Dr. Tom Frieden, CDC director.
"Births to younger teens pose the greatest risk of poor medical, social and economic outcomes. Efforts to prevent teen childbearing need to focus on evidence-based approaches to delaying sexual activity and increasing use of the most effective methods of contraception for those teens who are sexually active."
From the report, the researchers found promising data, revealing that teen births in the US have declined over the last 20 years to the lowest level recorded in 2012. However, during that year, over 86,000 teens between the ages of 15 and 17 gave birth.
'Need for early interventions'
In detail, the team observed that, per 1,000 teens between 15-17 years old, births declined 63%, from 38.6 in 1991 to 14.1 in 2012.
Though 73% of teens in this age group had not yet had sex, of the more sexually active teens, over 80% had not had any formal sex education before they had sex for the first time.
Additionally, nearly 1 in 4 teens between these ages had never spoken with their parents or guardians about sex.
Broken down by ethnicity, the data show that the birth rate in teens of this age is highest for Hispanic, non-Hispanic black and American Indian/Alaska Native teens.
"We need to provide young people with the support and opportunities they need to empower themselves," says Shanna Cox from CDC's Division of Reproductive Health. "Trying to balance the task of childbearing while trying to complete their high school education is a difficult set of circumstances, even with the help of family and others," she says, and adds:
"Teens who give birth are at increased risk of having a repeat birth while still a teenager. And these younger teens are less likely to earn a high school diploma or GED than older teens who give birth."
Although the report revealed a promising statistic - that over 90% of teens used some form ofcontraception the last time they had sex - most of the methods they relied on were "among the least effective."
Because many differences in teen pregnancy rates persist between ethnic groups, the CDC suggest there is a need for interventions and services aimed at specific cultural groups.
The organization says parents and guardians play a particularly important role in helping teens avoid risky sexual behaviors, and that delivering prevention efforts earlier could encourage abstinence and birth control use.
Written by Marie Ellis
http://www.medicalnewstoday.com/articles/275283.php, Accessed on April 10,2014.
Does he see himself as a champion of frustration? “I'm not on the side of frustration exactly, so much as the idea that one has to be able to bear frustration in order for satisfaction to be realistic. I'm interested in how the culture of consumer capitalism depends on the idea that we can't bear frustration, so that every time we feel a bit restless or bored or irritable, we eat, or we shop.”
guardian.co.uk, 1 June 2012. Adaptado.
Does he see himself as a champion of frustration? “I'm not on the side of frustration exactly, so much as the idea that one has to be able to bear frustration in order for satisfaction to be realistic. I'm interested in how the culture of consumer capitalism depends on the idea that we can't bear frustration, so that every time we feel a bit restless or bored or irritable, we eat, or we shop.”
guardian.co.uk, 1 June 2012. Adaptado.
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:
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:
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 neatness of the feline solution has been captured".
"...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?