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27 posts tagged news

29th July, 2014

mindblowingscience:

This is the worst Ebola outbreak in history. Here’s why you should be worried.

By Ishaan Tharoor July 28 at 2:12 PM
The worst Ebola outbreak in history has put a number of countries in West Africa in lockdown, led to the deaths of nearly 700 people since February and brought new reports of doctors, including Americans, contracting the virus they are attempting to contain. The situation is undeniably scary. Here’s what you need to know.
What is Ebola?
Ebola viral disease is a highly infectious illness with fatality rates up to 90 percent, according to the U.N. World Health Organization. Symptoms initially include a sudden fever as well as joint and muscle aches and then typically progress to vomiting, diarrhea and, in some cases, internal and external bleeding — you can see a full, grim description of symptoms compiled by the Centers for Disease Control and Prevention (CDC) here.
The virus spreads through contact with bodily fluids of someone who is infected. Reports of human infections usually first emerge in remote areas that are in proximity to tropical rain forests, where humans can come into contact with animals such as chimpanzees, gorillas and forest antelope. The consumption of bush meat is often a precursor to such outbreaks. The WHO says fruit bats are probably the natural host for the virus.

Continue Reading.

mindblowingscience:

This is the worst Ebola outbreak in history. Here’s why you should be worried.

 July 28 at 2:12 PM

The worst Ebola outbreak in history has put a number of countries in West Africa in lockdown, led to the deaths of nearly 700 people since February and brought new reports of doctors, including Americans, contracting the virus they are attempting to contain. The situation is undeniably scary. Here’s what you need to know.

What is Ebola?

Ebola viral disease is a highly infectious illness with fatality rates up to 90 percent, according to the U.N. World Health Organization. Symptoms initially include a sudden fever as well as joint and muscle aches and then typically progress to vomiting, diarrhea and, in some cases, internal and external bleeding — you can see a full, grim description of symptoms compiled by the Centers for Disease Control and Prevention (CDC) here.

The virus spreads through contact with bodily fluids of someone who is infected. Reports of human infections usually first emerge in remote areas that are in proximity to tropical rain forests, where humans can come into contact with animals such as chimpanzees, gorillas and forest antelope. The consumption of bush meat is often a precursor to such outbreaks. The WHO says fruit bats are probably the natural host for the virus.

Continue Reading.

(via Mind Blowing Science!)

1st February, 2013

Medical illustrators and neurological imaging experts at Johns Hopkins have figured out how night-hunting owls can almost fully rotate their heads — by as much as 270 degrees in either direction — without damaging the delicate blood vessels in their necks and heads, and without cutting off blood supply to their brains.
Read the full story

Medical illustrators and neurological imaging experts at Johns Hopkins have figured out how night-hunting owls can almost fully rotate their heads — by as much as 270 degrees in either direction — without damaging the delicate blood vessels in their necks and heads, and without cutting off blood supply to their brains.

Read the full story

8th June, 2012

laboratoryequipment:

Chemists Discover a New Property of FlamesChemists at Univ. College London have discovered a new property of flames, which allows them to control reactions at a solid surface in a flame and opens up a whole new field of chemical innovation.Published in the journal Angewandte Chemie, authors of the new study have discovered their previous understanding of how flames interact with a solid surface was mistaken. For the first time, they have demonstrated that a particular type of chemistry, called redox chemistry, can be accurately controlled at the surface.Read more: http://www.laboratoryequipment.com/news-Flame-Discovery-Allows-for-Chemical-Control-060812.aspx

laboratoryequipment:

Chemists Discover a New Property of Flames

Chemists at Univ. College London have discovered a new property of flames, which allows them to control reactions at a solid surface in a flame and opens up a whole new field of chemical innovation.

Published in the journal Angewandte Chemie, authors of the new study have discovered their previous understanding of how flames interact with a solid surface was mistaken. For the first time, they have demonstrated that a particular type of chemistry, called redox chemistry, can be accurately controlled at the surface.

Read more: http://www.laboratoryequipment.com/news-Flame-Discovery-Allows-for-Chemical-Control-060812.aspx

(via Laboratory Equipment)

3rd June, 2012

scinerds:

Two More Elements Added to The Periodic Table
You can now greet by name two new residents of the period table of elements: Flerovium and Livermorium.
The International Union of Pure and Applied Chemistry officially approved names for the elements — which sit at slot 114 and 116, respectively — on 31 May. They have until now gone by the temporary monikers ununquadium and ununhexium.

scinerds:

Two More Elements Added to The Periodic Table

You can now greet by name two new residents of the period table of elements: Flerovium and Livermorium.

The International Union of Pure and Applied Chemistry officially approved names for the elements — which sit at slot 114 and 116, respectively — on 31 May. They have until now gone by the temporary monikers ununquadium and ununhexium.

(via Scinerds)

1st June, 2012

discoverynews:

Paralyzed Rats Regain Mobility in Lab
After severe spinal cord damage, paralyzed rats are able to walk again with the help of a robot to hold them up and stimulate their nerves, a new study shows.
After the rats are trained on the machine for about two months, they gained the ability to control their hind legs — which had previously been cut off from communicating with the brain — with enough dexterity to climb stairs and navigate around objects. This control means that the brain has forged new connections to get around the spinal cord injury.
keep reading

discoverynews:

Paralyzed Rats Regain Mobility in Lab

After severe spinal cord damage, paralyzed rats are able to walk again with the help of a robot to hold them up and stimulate their nerves, a new study shows.

After the rats are trained on the machine for about two months, they gained the ability to control their hind legs — which had previously been cut off from communicating with the brain — with enough dexterity to climb stairs and navigate around objects. This control means that the brain has forged new connections to get around the spinal cord injury.

keep reading

(via DiscoveryNews)

31st May, 2012

(via Laboratory Equipment)

25th May, 2012

ikenbot:

Science Query for the Presidential Candidates
I wonder when will the public start demanding scientific literacy among their governing officials, including presidential candidates. We were not a country founded on religious beliefs yet it floods our country’s interest for some odd reason. Would it be too much to ask these people have at least a basic, well-rounded sense of the scientific method, much like we require the same level of expertise from our doctors, scientists, teachers, etc.?.
Here’s a nice article via SciAm that reiterates a similar concern:
3 Science Questions to Ask U.S. Presidential Candidates
“As you may already be aware from my previous posts, The Guardian U.S. and NYU’s Studio 20 journalism lab have teamed up to push a project called The Citizens’ Agenda into the media discourse surrounding the U.S. presidential 2012 election. The idea: find out what you–the citizens–want the candidates to be discussing over the next four months – usually meaning questions of substance about policy rather than horserace and gotcha questions so pervasive in mainstream media.”
Continue to Full Article

ikenbot:

Science Query for the Presidential Candidates

I wonder when will the public start demanding scientific literacy among their governing officials, including presidential candidates. We were not a country founded on religious beliefs yet it floods our country’s interest for some odd reason. Would it be too much to ask these people have at least a basic, well-rounded sense of the scientific method, much like we require the same level of expertise from our doctors, scientists, teachers, etc.?.

Here’s a nice article via SciAm that reiterates a similar concern:

3 Science Questions to Ask U.S. Presidential Candidates

“As you may already be aware from my previous posts, The Guardian U.S. and NYU’s Studio 20 journalism lab have teamed up to push a project called The Citizens’ Agenda into the media discourse surrounding the U.S. presidential 2012 election. The idea: find out what you–the citizens–want the candidates to be discussing over the next four months – usually meaning questions of substance about policy rather than horserace and gotcha questions so pervasive in mainstream media.”

Continue to Full Article

(Source: afro-dominicano)

(via Scinerds)

20th May, 2012

ikenbot:

Solar Eclipse Sunday Promises Spectacular Views from China to Texas
Image: As the solar eclipse on May 20, 2012, progresses, its partial and annular phases will look very similar to this eclipse on May 10, 1994 / Credit: Fred Espenak/SkyandTelescope.com
Almost all of North America will undergo a weird and dramatic event late Sunday afternoon (May 20). A partial eclipse of the sun will be visible, and for most, it will coincide with sunset.
Only for places northwest of a line running roughly from San Diego to Winnipeg will the eclipse be visible from start to finish before the sun sets. Elsewhere, depending on where you are, if your sky is clear toward the west-northwest, the setting sun will appear slightly dented, deeply crescent-shaped, or even ring-shaped.
The eclipse will begin in China, but in parts of eight western states — Oregon, California, Nevada, Colorado, Utah, Arizona, New Mexico and Texas — viewers living within a path averaging about 190 miles (306 kilometers) wide, will have a front-row seat to witness the rare and exciting spectacle of an annular solar eclipse, or ring eclipse. The path of annularity extends from the coastline at the California-Oregon border to northwestern Texas, where it will end at local sunset.
Places within the path include Medford, Ore.; Eureka, Calif.; Reno, Nev.; Albuquerque, N.M.; and Lubbock, Texas. Also within the path are two beloved national parks, Utah’s Bryce Canyon and Arizona’s Grand Canyon. The U.S. National Park Service has invited the public to view the eclipse from a national partk this weekend. [May 20 Solar Eclipse: Complete Coverage]
Continue..

ikenbot:

Solar Eclipse Sunday Promises Spectacular Views from China to Texas

Image: As the solar eclipse on May 20, 2012, progresses, its partial and annular phases will look very similar to this eclipse on May 10, 1994 / Credit: Fred Espenak/SkyandTelescope.com

Almost all of North America will undergo a weird and dramatic event late Sunday afternoon (May 20). A partial eclipse of the sun will be visible, and for most, it will coincide with sunset.

Only for places northwest of a line running roughly from San Diego to Winnipeg will the eclipse be visible from start to finish before the sun sets. Elsewhere, depending on where you are, if your sky is clear toward the west-northwest, the setting sun will appear slightly dented, deeply crescent-shaped, or even ring-shaped.

The eclipse will begin in China, but in parts of eight western states — Oregon, California, Nevada, Colorado, Utah, Arizona, New Mexico and Texas — viewers living within a path averaging about 190 miles (306 kilometers) wide, will have a front-row seat to witness the rare and exciting spectacle of an annular solar eclipse, or ring eclipse. The path of annularity extends from the coastline at the California-Oregon border to northwestern Texas, where it will end at local sunset.

Places within the path include Medford, Ore.; Eureka, Calif.; Reno, Nev.; Albuquerque, N.M.; and Lubbock, Texas. Also within the path are two beloved national parks, Utah’s Bryce Canyon and Arizona’s Grand Canyon. The U.S. National Park Service has invited the public to view the eclipse from a national partk this weekend. [May 20 Solar Eclipse: Complete Coverage]

Continue..

(via ken)

13th May, 2012

ikenbot:

Near-Death Experiences are Lucid Dreams, Experiment Finds
In a new exercise by a California organization that studies lucid dreaming, volunteers have been conditioned to dream near-death experiences, including the classic scenario of flying toward a light at the end of a tunnel. The researchers say their experiment demonstrates that these heavenly visions must be products of the human mind rather than supernatural phenomena.
In the sleep experiment at the Out-Of-Body Experience Research Center in Los Angeles, four groups of 10 to 20 volunteers were trained to perform a series of mental steps upon awakening during the night that might lead them to have out-of-body experiences. If able to “separate” from their bodies, they were then conditioned to try dreaming about floating through a tunnel toward a bright light. Eighteen of the volunteers said they were able to dream such an experience.
“Some of the test subjects not only succeeded in reproducing the out-of-body flight through a tunnel, but also enjoyed the ecstasy typical of the experience, and even flew all the way to the light and met their deceased relatives there,” center leader Michael Raduga stated in a press release about the work, which has not been published in a peer-reviewed journal.
More than 8 million Americans have had a near-death experience, and they most often occur during states of anesthesia-induced sleep, according to the center. Prior work by neurologists, including Kevin Nelson of the University of Kentucky, suggests that NDEs are indeed generated by the same brain mechanisms that cause lucid dreams. Nelson’s research shows that both types of experiences arise when part of the brain called the dorsolateral prefrontal region — our “logical center,” which is usually active only when we’re awake — becomes active during REM sleep, allowing extremely vivid dreams that seem to be happening in real life. He calls the transitional state between dreaming and wakefulness a “borderland of consciousness” and believes it is in this mixed state that lucid dreams and NDEs occur.
With Nelson’s research in mind, Raduga designed his experiment to determine if volunteers could be coached to dream up NDEs when in the transitional phase between sleep and waking. This would demonstrate that reports of NDEs, which are commonly cited as proof of the supernatural, really are just lucid dreams.
Volunteers who successfully generated NDEs described their experiences for the researchers. One participant, identified by the center asNadezhda S., stated: “I was able to leave my body after a couple of tries. Now that I was out of my body, I wanted to see the tunnel and it immediately appeared in front of me … Once I flew to the end of that tunnel … I saw my deceased husband there in the spirit. We spoke for several minutes. His words, touch, bearing, and feelings were real, just like during his life. Later on, when I felt it was time to leave, I went up to the tunnel, jumped and gently landed in my body.”
Continue..
For more on Dreams, visit ikenbot.tumblr.com/dreams

ikenbot:

Near-Death Experiences are Lucid Dreams, Experiment Finds

In a new exercise by a California organization that studies lucid dreaming, volunteers have been conditioned to dream near-death experiences, including the classic scenario of flying toward a light at the end of a tunnel. The researchers say their experiment demonstrates that these heavenly visions must be products of the human mind rather than supernatural phenomena.

In the sleep experiment at the Out-Of-Body Experience Research Center in Los Angeles, four groups of 10 to 20 volunteers were trained to perform a series of mental steps upon awakening during the night that might lead them to have out-of-body experiences. If able to “separate” from their bodies, they were then conditioned to try dreaming about floating through a tunnel toward a bright light. Eighteen of the volunteers said they were able to dream such an experience.

“Some of the test subjects not only succeeded in reproducing the out-of-body flight through a tunnel, but also enjoyed the ecstasy typical of the experience, and even flew all the way to the light and met their deceased relatives there,” center leader Michael Raduga stated in a press release about the work, which has not been published in a peer-reviewed journal.

More than 8 million Americans have had a near-death experience, and they most often occur during states of anesthesia-induced sleep, according to the center. Prior work by neurologists, including Kevin Nelson of the University of Kentucky, suggests that NDEs are indeed generated by the same brain mechanisms that cause lucid dreams. Nelson’s research shows that both types of experiences arise when part of the brain called the dorsolateral prefrontal region — our “logical center,” which is usually active only when we’re awake — becomes active during REM sleep, allowing extremely vivid dreams that seem to be happening in real life. He calls the transitional state between dreaming and wakefulness a “borderland of consciousness” and believes it is in this mixed state that lucid dreams and NDEs occur.

With Nelson’s research in mind, Raduga designed his experiment to determine if volunteers could be coached to dream up NDEs when in the transitional phase between sleep and waking. This would demonstrate that reports of NDEs, which are commonly cited as proof of the supernatural, really are just lucid dreams.

Volunteers who successfully generated NDEs described their experiences for the researchers. One participant, identified by the center asNadezhda S., stated: “I was able to leave my body after a couple of tries. Now that I was out of my body, I wanted to see the tunnel and it immediately appeared in front of me … Once I flew to the end of that tunnel … I saw my deceased husband there in the spirit. We spoke for several minutes. His words, touch, bearing, and feelings were real, just like during his life. Later on, when I felt it was time to leave, I went up to the tunnel, jumped and gently landed in my body.”

Continue..

For more on Dreams, visit ikenbot.tumblr.com/dreams

(via ken)