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Sleep is one of the great mysteries of biology. It's obviously dangerous to do it – you're unaware of both predators and potential food going by – and yet it's been observed in everything down to roundworms, and without it, we die. Clearly it does something extremely important.
A discovery by three Caltech grad students adds another layer to this: Cassiopea jellyfish, also known as "upside-down jellyfish," sleep – even though they don't have brains at all, just a diffuse network of neurons. They show the same symptoms that more complex animals do: reversible quiescence (they can be woken up), increased arousal threshold, (they don't jump at things they would normally notice), and homeostatic regulation of sleep (they have trouble if they don't do it regularly).
Apparently, whatever sleep does, it's so basic to survival that even diffuse neural networks need to do it.
A discovery by three Caltech grad students adds another layer to this: Cassiopea jellyfish, also known as "upside-down jellyfish," sleep – even though they don't have brains at all, just a diffuse network of neurons. They show the same symptoms that more complex animals do: reversible quiescence (they can be woken up), increased arousal threshold, (they don't jump at things they would normally notice), and homeostatic regulation of sleep (they have trouble if they don't do it regularly).
Apparently, whatever sleep does, it's so basic to survival that even diffuse neural networks need to do it.
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The Android launcher is among the most customizable and powerful apps on your device. Check out these amazing Android launcher apps and customize now! #AppsGames #ActionLauncher #AndroidLaunchers
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Paris (ESA) Sep 21, 2017
In the first act of lunar exploration, Neil Armstrong and Buzz Aldrin were major characters. In setting its sights on the Moon, ESA hopes to bring many more actors to this off-world stage.
By testing the market for transport services to the Moon, ESA aims to push the limits of technology and create new models of space business.
Touching down on the Moon was a monumental moment in human history. Eight short years and enormous resources took humankind to the lunar surface, initially for less than one day. Those small steps for humanity, and the missions that followed, taught us much about the Moon, our cosmic time capsule. But humans have not returned since Apollo 17 departed in 1972.
Today's technology could easily get us back to the Moon, but it is still expensive to develop the ride and take everything needed to support life with us. ESA wants our return to the Moon to be sustainable and based on partnerships - not only with international space agencies but also with business. A commercial approach may just be the ticket - literally and figuratively - to making it happen.
In the first act of lunar exploration, Neil Armstrong and Buzz Aldrin were major characters. In setting its sights on the Moon, ESA hopes to bring many more actors to this off-world stage.
By testing the market for transport services to the Moon, ESA aims to push the limits of technology and create new models of space business.
Touching down on the Moon was a monumental moment in human history. Eight short years and enormous resources took humankind to the lunar surface, initially for less than one day. Those small steps for humanity, and the missions that followed, taught us much about the Moon, our cosmic time capsule. But humans have not returned since Apollo 17 departed in 1972.
Today's technology could easily get us back to the Moon, but it is still expensive to develop the ride and take everything needed to support life with us. ESA wants our return to the Moon to be sustainable and based on partnerships - not only with international space agencies but also with business. A commercial approach may just be the ticket - literally and figuratively - to making it happen.
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President Donald Trump announced Thursday that he had signed an executive order authorizing additional sanctions against North Korea by targeting individuals, companies and financial institutions that do business with what he called "this criminal rogue regime."
Speaking before a meeting with South Korean President Moon Jae-in and Japanese Prime Minister Shinzo Abe, Trump said his goal is the "complete denuclearization" of North Korea and added that the nation led by Kim Jong Un posed a “grave threat to peace and security in our world.”
Speaking before a meeting with South Korean President Moon Jae-in and Japanese Prime Minister Shinzo Abe, Trump said his goal is the "complete denuclearization" of North Korea and added that the nation led by Kim Jong Un posed a “grave threat to peace and security in our world.”
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Experimental brain technology can rewind Alzheimer's disease
Alzheimer's disease is considered a global challenge of the century. Alzheimer's disease is a thief. It comes and takes away the most precious memories with which people identify themselves. It is a very clever thief. People whom it affects don't even remember what they have lost—they just feel lost; lost in space and time. Alzheimer's can affect anybody: intellectuals, professors, artists, musicians and handymen. My mother's Alzheimer's motivated me to start the very first Repetitive Transcranial Magnetic Stimulation (rTMS) treatment for Alzheimer's in Canada. The treatment is a non-invasive procedure that doesn't involve any medication. This technology has been used to successfully treat depression, and it is also being studied for a number of other neurological conditions (for example, Parkinson's, concussion and stroke). In rTMS, an electromagnetic coil is placed on the scalp and uses magnetic pulses to cause neurons (nerve cells) in the brain to activate. The goal is to train the neurons to perform better in the future. The rTMS treatment has no, or only mild side effects: some people report a slight headache that is easily treated with a pain relief pill. And the risk of seizure is very low. (Individuals with a history of epilepsy and/or seizures are excluded from rTMS treatments for that reason.)
Alzheimer's disease is considered a global challenge of the century. Alzheimer's disease is a thief. It comes and takes away the most precious memories with which people identify themselves. It is a very clever thief. People whom it affects don't even remember what they have lost—they just feel lost; lost in space and time. Alzheimer's can affect anybody: intellectuals, professors, artists, musicians and handymen. My mother's Alzheimer's motivated me to start the very first Repetitive Transcranial Magnetic Stimulation (rTMS) treatment for Alzheimer's in Canada. The treatment is a non-invasive procedure that doesn't involve any medication. This technology has been used to successfully treat depression, and it is also being studied for a number of other neurological conditions (for example, Parkinson's, concussion and stroke). In rTMS, an electromagnetic coil is placed on the scalp and uses magnetic pulses to cause neurons (nerve cells) in the brain to activate. The goal is to train the neurons to perform better in the future. The rTMS treatment has no, or only mild side effects: some people report a slight headache that is easily treated with a pain relief pill. And the risk of seizure is very low. (Individuals with a history of epilepsy and/or seizures are excluded from rTMS treatments for that reason.)
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With the help of the NASA/ESA Hubble Space Telescope, a German-led group of astronomers have observed the intriguing characteristics of an unusual type of object in the asteroid belt between Mars and Jupiter:
Two asteroids orbiting each other and exhibiting comet-like features, including a bright coma and a long tail.
This is the first known binary asteroid also classified as a comet. The research is presented in a paper published in the journal Nature today.
Two asteroids orbiting each other and exhibiting comet-like features, including a bright coma and a long tail.
This is the first known binary asteroid also classified as a comet. The research is presented in a paper published in the journal Nature today.
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When it comes to galaxies, our Milky Way is rather neat and orderly. Other galaxies can be much more chaotic. For example, the Markarian 573 galaxy has a black hole at its center which is spewing beams of light in opposite directions, giving its inner regions more of an hourglass shape. Explore this galaxy to see just how different it is: https://nasa.tumblr.com/post/165580689674/black-hole-sculpts-an-hourglass-galaxy
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Instagram today expanded its selection of face filters to live video, allowing users to swap between filters when filming live content. To use face filters during a live video, Instagram users can tap on the bottom right corner to browse through the filters and then apply them. Starting today, you can play with face filters while sharing live video. Whether you're channeling a kitten or want to add some stars or rainbow light to your face, you can easily try on face filters while connecting with friends and followers in the moment.All existing face filters are now available in live video, along with a brand-new sunglasses filter that will be available exclusively in live video for the next week. The sunglasses filter allows users to tap to change the scenery reflected in the lenses of the filter. Instagram says face filters for live video are rolling out globally over the course of the next few weeks. Tag: Instagram Discuss this article in our forums
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Best Players in the NBA - #T-1
Kevin Durant
Regular Season Stats:
PPG: 25.1
RPG: 8.3
APG: 4.8
SPG: 1.1
BPG: 1.6
FG: 54%
TS: 65%
Playoff Stats:
PPG: 28.5
RPG: 7.9
APG: 4.3
SPG: 0.8
BPG: 1.3
FG: 56%
TS: 68%
2017 Accolades:
All-NBA 2nd Team
NBA All-Star
Kevin Durant
Regular Season Stats:
PPG: 25.1
RPG: 8.3
APG: 4.8
SPG: 1.1
BPG: 1.6
FG: 54%
TS: 65%
Playoff Stats:
PPG: 28.5
RPG: 7.9
APG: 4.3
SPG: 0.8
BPG: 1.3
FG: 56%
TS: 68%
2017 Accolades:
All-NBA 2nd Team
NBA All-Star
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A September Morning Sky
Image Credit & Copyright: Tamas Ladanyi (TWAN)
https://apod.nasa.gov/apod/ap170921.html
The Moon, three planets, and a bright star gathered near the ecliptic plane in the September 18 morning sky over Veszprem Castle, Hungary. In this twilight skyscape, Mercury and Mars still shine close to the eastern horizon, soon to disappear in the glare of the Sun. Regulus, alpha star of the constellation Leo, is the bright point next to a waning crescent Moon, with brilliant Venus near the top of the frame. The beautiful morning conjunction of Moon, planets, and bright star could generally be followed by early morning risers all around planet Earth. But remarkably, the Moon also occulted, or passed directly in front of, Regulus and each of the three planets within 24 hours, all on September 18 UT. Visible from different locations, timing and watching the lunar occultations was much more difficult though, and mostly required viewing in daytime skies.
Image Credit & Copyright: Tamas Ladanyi (TWAN)
https://apod.nasa.gov/apod/ap170921.html
The Moon, three planets, and a bright star gathered near the ecliptic plane in the September 18 morning sky over Veszprem Castle, Hungary. In this twilight skyscape, Mercury and Mars still shine close to the eastern horizon, soon to disappear in the glare of the Sun. Regulus, alpha star of the constellation Leo, is the bright point next to a waning crescent Moon, with brilliant Venus near the top of the frame. The beautiful morning conjunction of Moon, planets, and bright star could generally be followed by early morning risers all around planet Earth. But remarkably, the Moon also occulted, or passed directly in front of, Regulus and each of the three planets within 24 hours, all on September 18 UT. Visible from different locations, timing and watching the lunar occultations was much more difficult though, and mostly required viewing in daytime skies.
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The big LEGO UCS Snowspeeder, an interesting subject to shoot. The size of this monster is very different to what I'm used to with LEGO and snow, I wasn't sure if the powder I use to mimick snow would even work. I mean, I was a little worried that if the grain was too small in scale, the snow would look like dust.
In the end, it worked quite well. I used the big scale of the speeder to find angles I couldn't easily find with the smaller speeders. Going very low with a big camera isn't always that easy, the ground gets in the way.
Shot for a review I wrote for Blocks magazine.
#lego #starwars #snowspeeder #theempirestrikesback #snow #blizzard #toy #toyphotography #avanaut #originality
In the end, it worked quite well. I used the big scale of the speeder to find angles I couldn't easily find with the smaller speeders. Going very low with a big camera isn't always that easy, the ground gets in the way.
Shot for a review I wrote for Blocks magazine.
#lego #starwars #snowspeeder #theempirestrikesback #snow #blizzard #toy #toyphotography #avanaut #originality
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Stranded
Silhouette Island, Seychelles
At dusk and dawn, the landscape have many shapes, silhouettes and shadows that can make your imagination run wild. Here the daybreak seems to reveal a stranded whale half buried in the sand.
It is the same with some animals too – I remember one of my dogs barking incessantly to a mailbox on a pole as he could not make heads or tale of that strange shape in the low light. He might have thought it a very strange human being without arms.
In this case you can just walk up and touch to realise it is just a beautifully carved granite rock. Its smoothness is the result of aeons of sandblasting of the waves swirling the sand around on its surface.
Image Copyright © 2016 +Morten Ross
Image Capture Date: 23 November 2016 05:57
Altitude: 0 meters
#seychelles #mahe #silhouetteisland #sea
#LandscapePhotography +Landscape Photography curated by +Margaret Tompkins +Eric Drumm +Chandler L. Walker +Krzysztof Felczak +AJ Lim +Jeff Beddow +H Peter Ji +Jani Westman +Dorma Wiggin +Ranco Sevla Sevla
#hqsplandscape +HQSP Landscape
#BTPLandscapePro +BTP Landscape Pro , owned and curated by +Nancy Dempsey
Silhouette Island, Seychelles
At dusk and dawn, the landscape have many shapes, silhouettes and shadows that can make your imagination run wild. Here the daybreak seems to reveal a stranded whale half buried in the sand.
It is the same with some animals too – I remember one of my dogs barking incessantly to a mailbox on a pole as he could not make heads or tale of that strange shape in the low light. He might have thought it a very strange human being without arms.
In this case you can just walk up and touch to realise it is just a beautifully carved granite rock. Its smoothness is the result of aeons of sandblasting of the waves swirling the sand around on its surface.
Image Copyright © 2016 +Morten Ross
Image Capture Date: 23 November 2016 05:57
Altitude: 0 meters
#seychelles #mahe #silhouetteisland #sea
#LandscapePhotography +Landscape Photography curated by +Margaret Tompkins +Eric Drumm +Chandler L. Walker +Krzysztof Felczak +AJ Lim +Jeff Beddow +H Peter Ji +Jani Westman +Dorma Wiggin +Ranco Sevla Sevla
#hqsplandscape +HQSP Landscape
#BTPLandscapePro +BTP Landscape Pro , owned and curated by +Nancy Dempsey
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The Verge has a very positive take on the HTC deal - and more importantly Google's hardware outlook. Personally I'm not so sure (which might partly be because I'm living outside of the US). Right now Google is really, really bad at marketing to consumers and if they ever want to be a serious contender to Apple (or Samsung for that matter) they will have to figure that out soon. Same goes for distribution and deals with global partners. If the Pixel 2 won't be available on a broader base than the first generation, I'm going to start to wonder if Google is actually serious about that hardware thing.
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Intelligence and Identity
Access to collective information can be a source of individualistic egotism, inflating our 'cognitive self-esteem'.
"Our failure to appreciate the degree to which we rely on others to know things is magnified by the universe of information available in the palm of our hands."
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We turn to the community of knowledge so often and so unthinkingly that we don’t even realize we’re doing it. As a result, our culture is premised on the worship of individual performance, and fails to recognize the degree to which we are all standing not only on the shoulders of giants but on the backs of our friends, family and neighbors, as well as our forebears.
Bill Gates couldn’t have achieved what he did without the ideas and hard work of countless other people. So the fact that he was able to reap such huge rewards is an injustice, a failure of the system to assign credit fairly. Wealth disparities follow in part from our failure to recognize the community of knowledge.
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We all tend to mistake our shallow puddles of understanding for vast oceans, cognitive scientists Steven Sloman and Philip Fernbach write in their essential new book “The Knowledge Illusion,” and this gap between what we think we know and what we truly know leads us to bungle decisions at work, at home, at the ballot box and in our social organisation and economic accounting.
America in 2017 is a stronghold of strongly held beliefs. Yet “public opinion is more extreme than people’s understanding justifies,” Sloman and Fernbach write, citing depressing studies that found many Americans with the firmest views on, say, the Affordable Care Act barely scratch the surface of understanding the law.
In fact, those of us with the most inflated sense of our own knowledge and skills may perform the worst, a phenomenon that psychologists call the Dunning-Kruger effect — and that I call my early 20s.
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The world’s greatest community of knowledge, the internet, is probably only making the problem worse. Our failure to appreciate the degree to which we rely on others to know things is magnified by the universe of information instantly available in the palm of our hands, research by Adrian Ward, a psychologist at the University of Texas, found. In the country of the mind, the one iPhone is king. WebMD makes us think we’re Dr. House. IMDB makes us think we’re Ken Jennings. These searches artificially inflate our “cognitive self-esteem”.
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But the internet was made in our own image. Knowledge has always been stored in a human network, with each individual mind merely a node.
In this way, the internet may also help us better appreciate how the community of knowledge makes our society possible.
Access to collective information can be a source of individualistic egotism, inflating our 'cognitive self-esteem'.
"Our failure to appreciate the degree to which we rely on others to know things is magnified by the universe of information available in the palm of our hands."
We turn to the community of knowledge so often and so unthinkingly that we don’t even realize we’re doing it. As a result, our culture is premised on the worship of individual performance, and fails to recognize the degree to which we are all standing not only on the shoulders of giants but on the backs of our friends, family and neighbors, as well as our forebears.
Bill Gates couldn’t have achieved what he did without the ideas and hard work of countless other people. So the fact that he was able to reap such huge rewards is an injustice, a failure of the system to assign credit fairly. Wealth disparities follow in part from our failure to recognize the community of knowledge.
We all tend to mistake our shallow puddles of understanding for vast oceans, cognitive scientists Steven Sloman and Philip Fernbach write in their essential new book “The Knowledge Illusion,” and this gap between what we think we know and what we truly know leads us to bungle decisions at work, at home, at the ballot box and in our social organisation and economic accounting.
America in 2017 is a stronghold of strongly held beliefs. Yet “public opinion is more extreme than people’s understanding justifies,” Sloman and Fernbach write, citing depressing studies that found many Americans with the firmest views on, say, the Affordable Care Act barely scratch the surface of understanding the law.
In fact, those of us with the most inflated sense of our own knowledge and skills may perform the worst, a phenomenon that psychologists call the Dunning-Kruger effect — and that I call my early 20s.
The world’s greatest community of knowledge, the internet, is probably only making the problem worse. Our failure to appreciate the degree to which we rely on others to know things is magnified by the universe of information instantly available in the palm of our hands, research by Adrian Ward, a psychologist at the University of Texas, found. In the country of the mind, the one iPhone is king. WebMD makes us think we’re Dr. House. IMDB makes us think we’re Ken Jennings. These searches artificially inflate our “cognitive self-esteem”.
But the internet was made in our own image. Knowledge has always been stored in a human network, with each individual mind merely a node.
In this way, the internet may also help us better appreciate how the community of knowledge makes our society possible.
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Neuron Types in Brain Are Defined by Gene Activity Shaping Their Communication Patterns
In a major step forward in research, scientists at Cold Spring Harbor Laboratory (CSHL) today publish in Cell a discovery about the molecular-genetic basis of neuronal cell types. Neurons are the basic building blocks that wire up brain circuits supporting mental activities and behavior. The study, which involves sophisticated computational analysis of the messages transcribed from genes that are active in a neuron, points to patterns of cell-to-cell communication as the core feature that makes possible rigorous distinctions among neuron types across the mouse brain.
In a major step forward in research, scientists at Cold Spring Harbor Laboratory (CSHL) today publish in Cell a discovery about the molecular-genetic basis of neuronal cell types. Neurons are the basic building blocks that wire up brain circuits supporting mental activities and behavior. The study, which involves sophisticated computational analysis of the messages transcribed from genes that are active in a neuron, points to patterns of cell-to-cell communication as the core feature that makes possible rigorous distinctions among neuron types across the mouse brain.
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A reported FCC filing has hinted that a Nokia 8 variant will launch in the US with 6 GB of RAM and 128 GB of internal storage space. #News #HMDGlobal #Nokia
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