- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
Looked it up after I posted the article
Can't say I've heard of Barnard's Star before
Science! (3 Viewers)
- Thread starterbonnjer
- Start date
- Latest activity Latest activity:
Can't say I've heard of Barnard's Star before
- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
Researchers have produced the first wiring diagram for the whole brain of a fruit fly, a feat that promises to revolutionise the field of neuroscience and pave the way for unprecedented insights into how the brain produces behaviour.
Rarely in science has so much effort been directed toward so little material, with scientists taking years to map the meanderings of all 139,255 neurons and the 50m connections bundled up inside the fly’s poppy seed-sized brain.
In the process, the researchers classified more than 8,400 different cell types, amounting to the first complete parts list for building a fly brain.
“You might be asking why we should care about the brain of a fruit fly,” said Sebastian Seung, a professor of computer science and neuroscience at Princeton University and a co-leader on the FlyWire project. “My simple answer is that if we can truly understand how any brain functions, it’s bound to tell us something about all brains.”
The intricate tangle of neurons, which if unravelled would reach for 150 metres, was mapped out through a painstaking process that started with slicing a female fruit fly brain into 7,000 thin slivers. Each section was imaged in an electron microscope to reveal structures as small as four-millionths of a millimetre wide.…….
www.theguardian.com
Rarely in science has so much effort been directed toward so little material, with scientists taking years to map the meanderings of all 139,255 neurons and the 50m connections bundled up inside the fly’s poppy seed-sized brain.
In the process, the researchers classified more than 8,400 different cell types, amounting to the first complete parts list for building a fly brain.
“You might be asking why we should care about the brain of a fruit fly,” said Sebastian Seung, a professor of computer science and neuroscience at Princeton University and a co-leader on the FlyWire project. “My simple answer is that if we can truly understand how any brain functions, it’s bound to tell us something about all brains.”
The intricate tangle of neurons, which if unravelled would reach for 150 metres, was mapped out through a painstaking process that started with slicing a female fruit fly brain into 7,000 thin slivers. Each section was imaged in an electron microscope to reveal structures as small as four-millionths of a millimetre wide.…….
Tiny brain, big deal: fruit fly diagram could transform neuroscience
Scientists took years to map 50m connections, which may lead to understanding of how wiring gives rise to behaviour
OP
OP
- Joined
- Oct 24, 2000
- Messages
- 15,054
- Reaction score
- 13,502
- Age
- 47
Offline
The asteroid that killed the dinosaurs was not alone
A second asteroid hit Earth around the same time causing a "catastrophic" event.
fred8615
Veteran Starter
Offline
Coyotes have the face muscles for that ‘sad-puppy’ look
The ability to make heart-melting stares may not be the fruit of dog domestication if their still-wild cousins have the power to do it too.
www.sciencenews.org
fred8615
Veteran Starter
Offline
COVID-19 Pandemic Affected the Moon, Scientists Claim
Something strange happened when the Earth was gripped by the COVID-19 pandemic in early 2020: the Moon got substantially colder.
futurism.com
- Joined
- Aug 1, 1997
- Messages
- 24,623
- Reaction score
- 22,342
- Age
- 54
- Location
- The People's Republic of Indianastan
Offline
If they can image a brain that small, it won't be long until they can get an image of the "brain" of an orange cat.Researchers have produced the first wiring diagram for the whole brain of a fruit fly, a feat that promises to revolutionise the field of neuroscience and pave the way for unprecedented insights into how the brain produces behaviour.
Rarely in science has so much effort been directed toward so little material, with scientists taking years to map the meanderings of all 139,255 neurons and the 50m connections bundled up inside the fly’s poppy seed-sized brain.
In the process, the researchers classified more than 8,400 different cell types, amounting to the first complete parts list for building a fly brain.
“You might be asking why we should care about the brain of a fruit fly,” said Sebastian Seung, a professor of computer science and neuroscience at Princeton University and a co-leader on the FlyWire project. “My simple answer is that if we can truly understand how any brain functions, it’s bound to tell us something about all brains.”
The intricate tangle of neurons, which if unravelled would reach for 150 metres, was mapped out through a painstaking process that started with slicing a female fruit fly brain into 7,000 thin slivers. Each section was imaged in an electron microscope to reveal structures as small as four-millionths of a millimetre wide.…….
Tiny brain, big deal: fruit fly diagram could transform neuroscience
Scientists took years to map 50m connections, which may lead to understanding of how wiring gives rise to behaviour
- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
The dental health benefits of adding fluoride to drinking water may be smaller now than before fluoride toothpaste was widely available, a review suggests.
Researchers from the universities of Manchester, Dundee and Aberdeen assessed evidence from 157 studies comparing communities that had fluoride added to their water supplies with communities that had no additional fluoride in their water.
The review found that the benefit of fluoridation had declined since the 1970s, when fluoride toothpaste became more widely available.
Fluoride is known to reduce tooth decay. The addition of low levels of fluoride to drinking water has long been considered one of the greatest public health achievements of the last century.
“When interpreting the evidence, it is important to think about the wider context and how society and health have changed over time,” said Anne-Marie Glenny, a professor of health sciences research at the University of Manchester and a co-author of the review.
“Most of the studies on water fluoridation are over 50 years old, before the availability of fluoride toothpaste. Contemporary studies give us a more relevant picture of what the benefits are now.”……..
www.theguardian.com
Researchers from the universities of Manchester, Dundee and Aberdeen assessed evidence from 157 studies comparing communities that had fluoride added to their water supplies with communities that had no additional fluoride in their water.
The review found that the benefit of fluoridation had declined since the 1970s, when fluoride toothpaste became more widely available.
Fluoride is known to reduce tooth decay. The addition of low levels of fluoride to drinking water has long been considered one of the greatest public health achievements of the last century.
“When interpreting the evidence, it is important to think about the wider context and how society and health have changed over time,” said Anne-Marie Glenny, a professor of health sciences research at the University of Manchester and a co-author of the review.
“Most of the studies on water fluoridation are over 50 years old, before the availability of fluoride toothpaste. Contemporary studies give us a more relevant picture of what the benefits are now.”……..
Dental health benefits of fluoride in water may have declined, study finds
Researchers say wider use of fluoride toothpaste means practice now has less of a role in reducing tooth decay
Offline
- Joined
- Aug 1, 1997
- Messages
- 24,623
- Reaction score
- 22,342
- Age
- 54
- Location
- The People's Republic of Indianastan
Offline
Negative time happens every day at work
www.livescience.com
Quantum physicists discover 'negative time' in strange experiment
Physicists showed that photons can seem to exit a material before entering it, revealing observational evidence of negative time
- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
An opossum will play dead to escape a predator. Ants remove the corpses of fallen soldiers from their nest. A group of chimpanzees will gather to bid farewell to one of their own.
Like humans, animals have complicated, surprising relationships with death. Susana Monsó, associate professor of philosophy at the National University of Distance Education in Madrid, examines animal perceptions of dying in her new book, Playing Possum: How Animals Understand Death.
Most pet owners wouldn’t think their dog or cat pays much mind to the great beyond. How have animals been observed to respond to death?
We don’t see a standard response in every species, but rather many different responses to death. We’ve seen many cases of mammalian mothers carrying the remains of their deceased babies – a very common phenomenon, especially among primate mothers, that might be an expression of grief.
There was a very famous case of a chimpanzee seen cleaning the teeth of the corpse of an adolescent male of the group.
We’ve seen another chimpanzee play-parenting the corpse of another species. And there are many cases of companion animals feeding on the remains of their caregivers.
Elephants have been witnessed showing immense interest in the corpses of fellow elephants.
There was a very intriguing report that had found the corpses of five different elephant calves buried within tea estates in India, and some suggestions they were buried by elephants themselves.
So we have a wide variety of reactions to death, and that raises the question: what is going on in their minds?…….
www.theguardian.com
Like humans, animals have complicated, surprising relationships with death. Susana Monsó, associate professor of philosophy at the National University of Distance Education in Madrid, examines animal perceptions of dying in her new book, Playing Possum: How Animals Understand Death.
Most pet owners wouldn’t think their dog or cat pays much mind to the great beyond. How have animals been observed to respond to death?
We don’t see a standard response in every species, but rather many different responses to death. We’ve seen many cases of mammalian mothers carrying the remains of their deceased babies – a very common phenomenon, especially among primate mothers, that might be an expression of grief.
There was a very famous case of a chimpanzee seen cleaning the teeth of the corpse of an adolescent male of the group.
We’ve seen another chimpanzee play-parenting the corpse of another species. And there are many cases of companion animals feeding on the remains of their caregivers.
Elephants have been witnessed showing immense interest in the corpses of fellow elephants.
There was a very intriguing report that had found the corpses of five different elephant calves buried within tea estates in India, and some suggestions they were buried by elephants themselves.
So we have a wide variety of reactions to death, and that raises the question: what is going on in their minds?…….
‘Elephants show immense interest in corpses’: Susana Monsó, the philosopher examining what animals know about death
Do other species understand that life ends? Do they mourn and even bury their dead? The Spanish academic and writer is looking for answers
World First: Stem Cells Reverse Type 1 Diabetes in Clinical Trial
Most people with type 1 diabetes cannot reverse their autoimmune disease or put it into spontaneous remission – all they can do is manage their blood sugar levels with insulin, a healthy diet, and regular exercise.
www.sciencealert.com
Offline
"Personalized cell therapy". Yes, please.World First: Stem Cells Reverse Type 1 Diabetes in Clinical Trial
Most people with type 1 diabetes cannot reverse their autoimmune disease or put it into spontaneous remission – all they can do is manage their blood sugar levels with insulin, a healthy diet, and regular exercise.
- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
Any day now, our night sky will host a guest star.
Stargazers and astronomers around the world continue to gaze toward the Corona Borealis constellation 3,000 light-years from Earth, where a long-dead star is expected to reignite in an explosion so powerful it will briefly rival the brilliance of Polaris, the North Star. The stellar corpse last turned on almost 80 years ago and will not reignite for another 80 years, making this a nearly once-in-a-lifetime experience.
Already, the stellar remnant, a white dwarf called T Coronae Borealis that's feasting on material from a nearby red giant star, has revealed a tell-tale dip in brightness that "is right on top" of the one that preceded its previous outburst in 1946. Astronomers don't yet know for sure what's causing the dip, but they say it's just a matter of time before the nova satiates its hunger and explodes into a spectacular nova. "We know it's going to go off — it's very obvious," Edward Sion, a professor of astronomy and astrophysics at Villanova University in Pennsylvania, told Space.com.............
Stargazers and astronomers around the world continue to gaze toward the Corona Borealis constellation 3,000 light-years from Earth, where a long-dead star is expected to reignite in an explosion so powerful it will briefly rival the brilliance of Polaris, the North Star. The stellar corpse last turned on almost 80 years ago and will not reignite for another 80 years, making this a nearly once-in-a-lifetime experience.
Already, the stellar remnant, a white dwarf called T Coronae Borealis that's feasting on material from a nearby red giant star, has revealed a tell-tale dip in brightness that "is right on top" of the one that preceded its previous outburst in 1946. Astronomers don't yet know for sure what's causing the dip, but they say it's just a matter of time before the nova satiates its hunger and explodes into a spectacular nova. "We know it's going to go off — it's very obvious," Edward Sion, a professor of astronomy and astrophysics at Villanova University in Pennsylvania, told Space.com.............
- Joined
- Jul 18, 1998
- Messages
- 25,129
- Reaction score
- 54,369
Offline
Fish burgers. Pineapple iced doughnuts. Spicy beef wonton soup. Vanilla marshmallows. Anchovies. KFC potato and gravy. Cookie dough ice-cream. Lemons. Talcum powder. Ice. Dirt.
These seemingly random – yet strangely specific – sweet, salty, spicy, cold and just out-there freaky tastes are some of the things craved during pregnancies.
While a majority – as many as 90% – of pregnant people experience at least one food craving during pregnancy, most commonly in the first trimester, relatively little is known about why.
There are likely cultural differences, with studies suggesting pregnant women in Nigeria are more likely to crave fruits and vegetables, while women in the US hanker for chocolate.
Among the baffling variety of cravings, which include the oft-quoted pickles and ice-cream, there are some trends.
Melanie McGrice, a prenatal dietitian based in Melbourne, says a common pregnancy craving is for salty foods, which, perhaps counterintuitively, can be a sign that women aren’t drinking enough water.
“During pregnancy, our fluid requirements increase by about 150%,” she says, noting the overall volume of blood in the body increases by 45% during pregnancy. “Yet most women’s fluid intake does not increase.”
When we eat more salty foods the body retains more water, but McGrice says that’s not a good thing. “The ideal solution is to do the opposite and actually just drink more water,” she says.
Another common craving is cold, sweet foods such as ice-cream and milkshakes, and foods that are high in carbohydrates. That can be a response to fluctuating blood sugar levels, which happen even in women without diabetes.……
www.theguardian.com
These seemingly random – yet strangely specific – sweet, salty, spicy, cold and just out-there freaky tastes are some of the things craved during pregnancies.
While a majority – as many as 90% – of pregnant people experience at least one food craving during pregnancy, most commonly in the first trimester, relatively little is known about why.
There are likely cultural differences, with studies suggesting pregnant women in Nigeria are more likely to crave fruits and vegetables, while women in the US hanker for chocolate.
Among the baffling variety of cravings, which include the oft-quoted pickles and ice-cream, there are some trends.
Melanie McGrice, a prenatal dietitian based in Melbourne, says a common pregnancy craving is for salty foods, which, perhaps counterintuitively, can be a sign that women aren’t drinking enough water.
“During pregnancy, our fluid requirements increase by about 150%,” she says, noting the overall volume of blood in the body increases by 45% during pregnancy. “Yet most women’s fluid intake does not increase.”
When we eat more salty foods the body retains more water, but McGrice says that’s not a good thing. “The ideal solution is to do the opposite and actually just drink more water,” she says.
Another common craving is cold, sweet foods such as ice-cream and milkshakes, and foods that are high in carbohydrates. That can be a response to fluctuating blood sugar levels, which happen even in women without diabetes.……
Why pickles and ice-cream? The science of strangely specific pregnancy cravings
Salty or sweet, nutritional or not – there may be hankerings for unexpected foods when pregnant, but beware the old adage of eating for two
Create an account or login to comment
You must be a member in order to leave a comment
Create account
Create an account on our community. It's easy!
Log in
Already have an account? Log in here.