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5 Common Misconceptions About Seasonal Flu

Science2.0 - 54 min 32 sec ago

If you're sick, stay home. Shutterstock

By Derek Gatherer, Lancaster University

It’s that time of the year again. You probably think I mean Christmas, but as a virologist the sight of glitter, fairy lights and moulting pine trees immediately makes me think of the flu season. And if there’s one thing that can ruin your family’s Christmas, it’s the arrival of that particular unwanted guest.

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Categories: Science2.0

5 Common Misconceptions About Seasonal Flu

General - 54 min 32 sec ago

If you're sick, stay home. Shutterstock

By Derek Gatherer, Lancaster University

It’s that time of the year again. You probably think I mean Christmas, but as a virologist the sight of glitter, fairy lights and moulting pine trees immediately makes me think of the flu season. And if there’s one thing that can ruin your family’s Christmas, it’s the arrival of that particular unwanted guest.

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Categories: News

Foldscope: A Microscope You Can Carry In Your Pocket

Science2.0 - 57 min 51 sec ago
I finally received a Foldscope beta test kit. “Foldscope is an origami-based print-and-fold optical microscope that can be assembled from a flat sheet of paper,” according to the website. The Foldscope “can provide over 2,000X magnification with sub-micron resolution (800nm), weighs less than two nickels (8.8 g), is small enough to fit in a pocket (70 × 20 × 2 mm3), requires no external power, and can survive being dropped from a 3-story building or stepped on by a person.”

The kit came with instructions, perforated cardboard for the microscope assembly parts, lenses, magnetic strips to attach the microscope to a cell phone, and a light module.

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Categories: Science2.0

Foldscope: A Microscope You Can Carry In Your Pocket

General - 57 min 51 sec ago
I finally received a Foldscope beta test kit. “Foldscope is an origami-based print-and-fold optical microscope that can be assembled from a flat sheet of paper,” according to the website. The Foldscope “can provide over 2,000X magnification with sub-micron resolution (800nm), weighs less than two nickels (8.8 g), is small enough to fit in a pocket (70 × 20 × 2 mm3), requires no external power, and can survive being dropped from a 3-story building or stepped on by a person.”

The kit came with instructions, perforated cardboard for the microscope assembly parts, lenses, magnetic strips to attach the microscope to a cell phone, and a light module.

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Categories: News

When Embryonic Stem Cells Don't Know What To Make Of Themselves

Science2.0 - 1 hour 7 min ago

A new paper has found that inhibiting or blocking stem cells ability to make a specific decision, leads to better cell growth and could lead to defined ways to differentiate stem cells.

Th authors say their research is the first comprehensive analysis of a pathway important for stem and cancer cell decisions known as Erk. As a result, they hope the work could contain clues to cancer treatment as well as helping to establish a platform to make stem cell treatments for gut related disorders like the pancreas or the liver. 



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Categories: Science2.0

When Embryonic Stem Cells Don't Know What To Make Of Themselves

General - 1 hour 7 min ago

A new paper has found that inhibiting or blocking stem cells ability to make a specific decision, leads to better cell growth and could lead to defined ways to differentiate stem cells.

Th authors say their research is the first comprehensive analysis of a pathway important for stem and cancer cell decisions known as Erk. As a result, they hope the work could contain clues to cancer treatment as well as helping to establish a platform to make stem cell treatments for gut related disorders like the pancreas or the liver. 



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Categories: News

HIP 116454b Shows That Despite Malfunction, Kepler Can Still Find Planets

Science2.0 - 2 hours 47 min ago

Despite a malfunction that ended its primary mission in May 2013, the Kepler spacecraft is still alive and working and its data has found a new "super-Earth".

NASA's Kepler spacecraft detected planets by looking for transits, when a star dims slightly as a planet crosses in front of it. The smaller the planet, the weaker the dimming, so brightness measurements must be precise and that requires maintaining a steady pointing. Kepler can't really do that any more, its primary functionality came to an end when the second of four reaction wheels used to stabilize the spacecraft failed. Without at least three functioning reaction wheels, Kepler couldn't be pointed accurately.


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Categories: Science2.0

HIP 116454b Shows That Despite Malfunction, Kepler Can Still Find Planets

General - 2 hours 47 min ago

Despite a malfunction that ended its primary mission in May 2013, the Kepler spacecraft is still alive and working and its data has found a new "super-Earth".

NASA's Kepler spacecraft detected planets by looking for transits, when a star dims slightly as a planet crosses in front of it. The smaller the planet, the weaker the dimming, so brightness measurements must be precise and that requires maintaining a steady pointing. Kepler can't really do that any more, its primary functionality came to an end when the second of four reaction wheels used to stabilize the spacecraft failed. Without at least three functioning reaction wheels, Kepler couldn't be pointed accurately.


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Categories: News

Pilot Project For Removal Of CO2 From Deep Waters

General - 3 hours 46 min ago

In the former mining area Herrerias in Andalusia, the deep waters of Pit Lake Guadiana show extremely high concentration of dissolved carbon dioxide (CO2). 

Levels are so high that if it were to bubble up, human beings close-by would be jeopardized. To demonstrate a possible fix, scientists of the Spanish Institute of Geology and Mining, the University of the Basque Country (UPV/EHU, Bilbao) and the Helmholtz Centre for Environmental Research (UFZ) constructed a pilot plant for degassing.

A fountain pulls deep water through a pipe to the surface, where the gas can escape from the water. The buoyancy produced by the bubbles provides the energy required for driving the flow.


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Categories: News

Pilot Project For Removal Of CO2 From Deep Waters

Science2.0 - 3 hours 46 min ago

In the former mining area Herrerias in Andalusia, the deep waters of Pit Lake Guadiana show extremely high concentration of dissolved carbon dioxide (CO2). 

Levels are so high that if it were to bubble up, human beings close-by would be jeopardized. To demonstrate a possible fix, scientists of the Spanish Institute of Geology and Mining, the University of the Basque Country (UPV/EHU, Bilbao) and the Helmholtz Centre for Environmental Research (UFZ) constructed a pilot plant for degassing.

A fountain pulls deep water through a pipe to the surface, where the gas can escape from the water. The buoyancy produced by the bubbles provides the energy required for driving the flow.


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Categories: Science2.0

Cellular Hydrogen Peroxide - A New Twist On The Free Radical Antioxidant Relationship

General - 3 hours 49 min ago

Hydrogen peroxide (H2O2) is a strong oxidizer. You may know it as a wound disinfectant or as a bleaching agent for hair and teeth but it is also created naturally in our bodies, as part of our cellular oxidation.

H2O2 belongs to a group of natural chemicals called reactive oxygen species (ROS) and when the process gets out of hand, too much oxidation can have a damaging effect on cells and their components. Unchecked free radicals, the most well-known ROS, are believed to play a role in carcinogenesis, degenerative diseases, and even aging. To prevent that, our cells also contain antioxidant enzymes known as peroxiredoxins that degrade H2O2 molecules. We don't want to have no H202, despite the chemophobia of environmental and food activists, we want just enough.


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Categories: News

Cellular Hydrogen Peroxide - A New Twist On The Free Radical Antioxidant Relationship

Science2.0 - 3 hours 49 min ago

Hydrogen peroxide (H2O2) is a strong oxidizer. You may know it as a wound disinfectant or as a bleaching agent for hair and teeth but it is also created naturally in our bodies, as part of our cellular oxidation.

H2O2 belongs to a group of natural chemicals called reactive oxygen species (ROS) and when the process gets out of hand, too much oxidation can have a damaging effect on cells and their components. Unchecked free radicals, the most well-known ROS, are believed to play a role in carcinogenesis, degenerative diseases, and even aging. To prevent that, our cells also contain antioxidant enzymes known as peroxiredoxins that degrade H2O2 molecules. We don't want to have no H202, despite the chemophobia of environmental and food activists, we want just enough.


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Categories: Science2.0

Why I’ll Talk Policy With Climate Change Deniers But Not Science

Science2.0 - 4 hours 29 min ago

What rising sea level? Peter, CC BY-SA

By Mark Maslin,University College London

There are many complex reasons why people decide not to accept the science of climate change.

The doubters range from the conspiracy theorist to the skeptical scientist, or from the paid lobbyist to the raving lunatic.

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Categories: Science2.0

Why I’ll Talk Policy With Climate Change Deniers But Not Science

General - 4 hours 29 min ago

What rising sea level? Peter, CC BY-SA

By Mark Maslin,University College London

There are many complex reasons why people decide not to accept the science of climate change.

The doubters range from the conspiracy theorist to the skeptical scientist, or from the paid lobbyist to the raving lunatic.

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Categories: News

Sedation Nation: Benzodiazepine Use Highest In Older People

Science2.0 - 6 hours 2 min ago

Though it has higher risks in older people, and those are well-known and cautioned against, prescription use of benzodiazepines increases steadily with age, despite the known risks for older people, according to a comprehensive analysis of benzodiazepine prescribing in the United States.

Benzodiazepines are a widely used class of sedative and anti-anxiety medications.  They are effective in relieving anxiety and take effect more quickly than antidepressant medications often prescribed for anxiety. However, the prevalence of anxiety disorders declines with age. Guidelines recommend non-pharmacologic approaches and antidepressants over benzodiazepines as first-line treatment in older people. 


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Categories: Science2.0

Sedation Nation: Benzodiazepine Use Highest In Older People

General - 6 hours 2 min ago

Though it has higher risks in older people, and those are well-known and cautioned against, prescription use of benzodiazepines increases steadily with age, despite the known risks for older people, according to a comprehensive analysis of benzodiazepine prescribing in the United States.

Benzodiazepines are a widely used class of sedative and anti-anxiety medications.  They are effective in relieving anxiety and take effect more quickly than antidepressant medications often prescribed for anxiety. However, the prevalence of anxiety disorders declines with age. Guidelines recommend non-pharmacologic approaches and antidepressants over benzodiazepines as first-line treatment in older people. 


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Categories: News

Quantum Immortality

RealClearScience - 11 hours 2 min ago
Categories: RealClearScience

The Great Ebola Lie

RealClearScience - 11 hours 2 min ago
Categories: RealClearScience