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Easter Island Mystery: What Really Happened To Rapa Nui Society?

Science2.0 - 1 hour 5 min ago
In 1722, when Europeans arrived on Easter Island, nearly 2,300 miles off the west coast of Chile, the native Polynesian culture known as Rapa Nui were already in a demographic tailspin from which they would not recover.

Pick a fad belief of the moment, and someone has correlated it to Easter Island. Environmental damage? Easter Island. Climate change? Easter Island. Add in political partisanship and lifestyle diseases and you can also find a correlation-causation arrow being abused. 

Will there ever be an answer? Hard to say, but a new paper attempts at least some clarification.

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Categories: Science2.0

Easter Island Mystery: What Really Happened To Rapa Nui Society?

General - 1 hour 5 min ago
In 1722, when Europeans arrived on Easter Island, nearly 2,300 miles off the west coast of Chile, the native Polynesian culture known as Rapa Nui were already in a demographic tailspin from which they would not recover.

Pick a fad belief of the moment, and someone has correlated it to Easter Island. Environmental damage? Easter Island. Climate change? Easter Island. Add in political partisanship and lifestyle diseases and you can also find a correlation-causation arrow being abused. 

Will there ever be an answer? Hard to say, but a new paper attempts at least some clarification.

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Categories: News

Outsourcing: 3 Ways To Stop Medical Research Brain Drain

Science2.0 - 1 hour 20 min ago
Throughout the 20th century, medical research and public health science was primarily done by corporations - the United States, with 5 percent of the population, generated more than 50 percent of the money and a whole lot more of the science.

No more. Medical research has declined in the United States. It's a win for multiculturalism and a win for globalization but a loss for the U.S.  Yet we have no one else to blame. We are not being out-competed by China when it comes to science, we are losing medical research because we have been taught to hate drug companies and that new drugs should be cheap. That has had substantial impact on our policy.
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Categories: Science2.0

Outsourcing: 3 Ways To Stop Medical Research Brain Drain

General - 1 hour 20 min ago
Throughout the 20th century, medical research and public health science was primarily done by corporations - the United States, with 5 percent of the population, generated more than 50 percent of the money and a whole lot more of the science.

No more. Medical research has declined in the United States. It's a win for multiculturalism and a win for globalization but a loss for the U.S.  Yet we have no one else to blame. We are not being out-competed by China when it comes to science, we are losing medical research because we have been taught to hate drug companies and that new drugs should be cheap. That has had substantial impact on our policy.
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Categories: News

Soup From A Can Does Not Create Risk From BPA

Science2.0 - 1 hour 43 min ago
Coating the mouth with foods stored in containers that used bisphenol A (BPA), like soup, does not lead to high levels of BPA in blood.

BPA is used to make some plastics and to seal canned food containers against bacterial contamination. Food which picks up trace amounts of BPA from packaging is the major source of human exposure, according to environmental critics, and the health concerns about BPA center on potential to mimic certain hormones at really high exposures.
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Categories: Science2.0

Soup From A Can Does Not Create Risk From BPA

General - 1 hour 43 min ago
Coating the mouth with foods stored in containers that used bisphenol A (BPA), like soup, does not lead to high levels of BPA in blood.

BPA is used to make some plastics and to seal canned food containers against bacterial contamination. Food which picks up trace amounts of BPA from packaging is the major source of human exposure, according to environmental critics, and the health concerns about BPA center on potential to mimic certain hormones at really high exposures.
-->

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Categories: News

Why Climate Scientists Shouldn't Testify Before Congress

Science2.0 - 3 hours 42 min ago

Climate scientists will be either ineffectual or counter-productive if they testify before Congress. EPA

By Mathis Hampel, University of East Anglia

Western liberal democracies believe that in difficult political decisions science serves as a referee and arbiter of truth.

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Categories: Science2.0

Why Climate Scientists Shouldn't Testify Before Congress

General - 3 hours 42 min ago

Climate scientists will be either ineffectual or counter-productive if they testify before Congress. EPA

By Mathis Hampel, University of East Anglia

Western liberal democracies believe that in difficult political decisions science serves as a referee and arbiter of truth.

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Categories: News

Adult Stem Cells Used To Grow New Hair

Science2.0 - 3 hours 51 min ago
Researchers have used human induced pluripotent stem cells (iPSCs) to generate new hair, the first step toward the development of a cell-based treatment for people with hair loss. 

In the United States alone, more than 40 million men and 21 million women are affected by hair loss. The research team developed a protocol that induced human pluripotent stem cells to become dermal papilla cells. They are a unique population of cells that regulate hair-follicle formation and growth cycle. 

Human dermal papilla cells on their own are not suitable for hair transplants because they cannot be obtained in necessary amounts and rapidly lose their ability to induce hair-follicle formation in culture. 
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Categories: Science2.0

Adult Stem Cells Used To Grow New Hair

General - 3 hours 51 min ago
Researchers have used human induced pluripotent stem cells (iPSCs) to generate new hair, the first step toward the development of a cell-based treatment for people with hair loss. 

In the United States alone, more than 40 million men and 21 million women are affected by hair loss. The research team developed a protocol that induced human pluripotent stem cells to become dermal papilla cells. They are a unique population of cells that regulate hair-follicle formation and growth cycle. 

Human dermal papilla cells on their own are not suitable for hair transplants because they cannot be obtained in necessary amounts and rapidly lose their ability to induce hair-follicle formation in culture. 
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Categories: News

Ghrelin Hormone Supplement Increases Sex Drive

Science2.0 - 6 hours 26 min ago
New studies have found that a supplement of ghrelin - the "appetite hormone" - increased the sexual activity of mice.

Ghrelin is a gastrointestinal hormone that is released from the stomach, and is involved in the stimulation of our appetite by activating the brain's reward system. Since the brain's reward system also motivates us to seek a partner and to have sex, a group of researchers at the Sahlgrenska Academy decided to investigate whether ghrelin may also affect sexual behaviors. 

The answer is: yes, at least in mice.
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Categories: Science2.0

Ghrelin Hormone Supplement Increases Sex Drive

General - 6 hours 26 min ago
New studies have found that a supplement of ghrelin - the "appetite hormone" - increased the sexual activity of mice.

Ghrelin is a gastrointestinal hormone that is released from the stomach, and is involved in the stimulation of our appetite by activating the brain's reward system. Since the brain's reward system also motivates us to seek a partner and to have sex, a group of researchers at the Sahlgrenska Academy decided to investigate whether ghrelin may also affect sexual behaviors. 

The answer is: yes, at least in mice.
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Categories: News

Heroin Users 6X As Likely To Die Prematurely

Science2.0 - 6 hours 44 min ago
In the largest study of opioids users done to-date, scholars analyzed records of 198,247 people in England who had been involved in drug treatment or the criminal justice system between 2005 and 2009. 

They found that opioid users were six times more likely to die prematurely than people in the general population. Almost one in ten of these deaths were due to suicide, more than four times the rate in the general population. The data recorded 3,974 deaths and their causes during this period. The study is the first to record age trends in opioid users' mortality and with age, the gap gets even wider. In the oldest 45-64 age-group, homicide was 27 times more common than in the general population. 
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Categories: Science2.0

Heroin Users 6X As Likely To Die Prematurely

General - 6 hours 44 min ago
In the largest study of opioids users done to-date, scholars analyzed records of 198,247 people in England who had been involved in drug treatment or the criminal justice system between 2005 and 2009. 

They found that opioid users were six times more likely to die prematurely than people in the general population. Almost one in ten of these deaths were due to suicide, more than four times the rate in the general population. The data recorded 3,974 deaths and their causes during this period. The study is the first to record age trends in opioid users' mortality and with age, the gap gets even wider. In the oldest 45-64 age-group, homicide was 27 times more common than in the general population. 
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Categories: News

Multiculturalism Is Not Dead

Science2.0 - 7 hours 4 min ago
Multiculturalism was once a good thing - people learned about the world outside their own neighborhoods - but it has become bad. Instead of being a positive, multiculturalism is often invoked by people with an agenda; people who want to promote division among their constituents note that the majority will homogenize their beliefs while people against immigration complain about pockets of foreign nationals with unknown motivations inside their cities.
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Categories: Science2.0

Multiculturalism Is Not Dead

General - 7 hours 4 min ago
Multiculturalism was once a good thing - people learned about the world outside their own neighborhoods - but it has become bad. Instead of being a positive, multiculturalism is often invoked by people with an agenda; people who want to promote division among their constituents note that the majority will homogenize their beliefs while people against immigration complain about pockets of foreign nationals with unknown motivations inside their cities.
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Categories: News

Carhacking: Computerized Vehicles Are More Vulnerable Than Ever

Science2.0 - 8 hours 37 min ago

Who's really driving your car? Saad Faruque, CC BY-SA

By Andrew Smith, The Open University and Blaine Price, The Open University

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Categories: Science2.0

Carhacking: Computerized Vehicles Are More Vulnerable Than Ever

General - 8 hours 37 min ago

Who's really driving your car? Saad Faruque, CC BY-SA

By Andrew Smith, The Open University and Blaine Price, The Open University

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Categories: News

Outreach Needed? Boys Lag Behind Girls In Academic Achievement

Science2.0 - 9 hours 7 min ago
A lot of cultural angst and even more money is tied up in the notion that girls are somehow being left behind and more awareness of the issue, along with programs against sexism, have become common, even at the graduate levels of universities. But the origin of that belief in the last two decades has been a mystery. There are some differences, areas where girls achieved less than boys, and vice-versa. No Child Left Behind was a successful reform of education that led to girls achieving parity with boys in the only area they lagged, mathematics, and a new analysis finds that the concern may have been misplaced all along, individual variance aside.
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Categories: Science2.0

Outreach Needed? Boys Lag Behind Girls In Academic Achievement

General - 9 hours 7 min ago
A lot of cultural angst and even more money is tied up in the notion that girls are somehow being left behind and more awareness of the issue, along with programs against sexism, have become common, even at the graduate levels of universities. But the origin of that belief in the last two decades has been a mystery. There are some differences, areas where girls achieved less than boys, and vice-versa. No Child Left Behind was a successful reform of education that led to girls achieving parity with boys in the only area they lagged, mathematics, and a new analysis finds that the concern may have been misplaced all along, individual variance aside.
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Categories: News