Feed aggregator

New algorithm can help spot faked photos before they go viral

HIV and AIDS - пт, 2018-05-18 14:00
Faked pictures can make very powerful propaganda if they get widely shared. A new algorithm aims to weed out doctored images before they spread
Категории: Healthcare, Science and society

Feedback: Did dinosaurs fart? Science says yes

Genetics - пт, 2018-05-18 12:00
The ancestors of birds had some primitive habits. Plus: why you should take the advice of one Australian health food shop with a pinch of (organic) salt, and more
Категории: Biology

Feedback: Did dinosaurs fart? Science says yes

Genetically modified organisms (GMO) - пт, 2018-05-18 12:00
The ancestors of birds had some primitive habits. Plus: why you should take the advice of one Australian health food shop with a pinch of (organic) salt, and more
Категории: Science and society

Ape ‘midwives’ spotted helping female bonobos give birth

Genetics - пт, 2018-05-18 11:50
When female bonobos went into labour, other females gathered around to keep them safe, swatting away flies and even seemingly trying to catch the baby as it emerged
Категории: Biology

Ape ‘midwives’ spotted helping female bonobos give birth

Genetically modified organisms (GMO) - пт, 2018-05-18 11:50
When female bonobos went into labour, other females gathered around to keep them safe, swatting away flies and even seemingly trying to catch the baby as it emerged
Категории: Science and society

Ape ‘midwives’ spotted helping female bonobos give birth

HIV and AIDS - пт, 2018-05-18 11:50
When female bonobos went into labour, other females gathered around to keep them safe, swatting away flies and even seemingly trying to catch the baby as it emerged
Категории: Healthcare, Science and society

The way toddlers waddle can teach robot footballers how to play

Genetics - пт, 2018-05-18 09:45
A robot football team trained to mimic how infants walk comprehensively beat others trained on geometric walking patterns
Категории: Biology

The way toddlers waddle can teach robot footballers how to play

Genetically modified organisms (GMO) - пт, 2018-05-18 09:45
A robot football team trained to mimic how infants walk comprehensively beat others trained on geometric walking patterns
Категории: Science and society

The way toddlers waddle can teach robot footballers how to play

HIV and AIDS - пт, 2018-05-18 09:45
A robot football team trained to mimic how infants walk comprehensively beat others trained on geometric walking patterns
Категории: Healthcare, Science and society

Receptors of intermediates of carbohydrate metabolism, GPR91 and GPR99, mediate axon growth

PLOS Biology (new articles) - чт, 2018-05-17 23:00

by Hosni Cherif, François Duhamel, Bruno Cécyre, Alex Bouchard, Ariane Quintal, Sylvain Chemtob, Jean-François Bouchard

During the development of the visual system, high levels of energy are expended propelling axons from the retina to the brain. However, the role of intermediates of carbohydrate metabolism in the development of the visual system has been overlooked. Here, we report that the carbohydrate metabolites succinate and α-ketoglutarate (α-KG) and their respective receptor—GPR91 and GPR99—are involved in modulating retinal ganglion cell (RGC) projections toward the thalamus during visual system development. Using ex vivo and in vivo approaches, combined with pharmacological and genetic analyses, we revealed that GPR91 and GPR99 are expressed on axons of developing RGCs and have complementary roles during RGC axon growth in an extracellular signal–regulated kinases 1 and 2 (ERK1/2)-dependent manner. However, they have no effects on axon guidance. These findings suggest an important role for these receptors during the establishment of the visual system and provide a foundational link between carbohydrate metabolism and axon growth.
Категории: Biology, Journals

A third of ‘protected’ nature zones are quietly being ruined

Genetics - чт, 2018-05-17 21:00
The world’s nations have set up 200,000 protected areas in which nature is supposed to flourish, but in many cases the protection is pretty much theoretical
Категории: Biology

A third of ‘protected’ nature zones are quietly being ruined

Genetically modified organisms (GMO) - чт, 2018-05-17 21:00
The world’s nations have set up 200,000 protected areas in which nature is supposed to flourish, but in many cases the protection is pretty much theoretical
Категории: Science and society

A third of ‘protected’ nature zones are quietly being ruined

HIV and AIDS - чт, 2018-05-17 21:00
The world’s nations have set up 200,000 protected areas in which nature is supposed to flourish, but in many cases the protection is pretty much theoretical
Категории: Healthcare, Science and society

Someone is wrecking the ozone layer again. They must be stopped

Genetically modified organisms (GMO) - чт, 2018-05-17 19:47
For the health of our planet, and ourselves, we must find and foil those who breach crucial environmental treaties, says Lesley Evans Ogden
Категории: Science and society

Someone is wrecking the ozone layer again. They must be stopped

Genetics - чт, 2018-05-17 19:47
For the health of our planet, and ourselves, we must find and foil those who breach crucial environmental treaties, says Lesley Evans Ogden
Категории: Biology

Someone is wrecking the ozone layer again. They must be stopped

HIV and AIDS - чт, 2018-05-17 19:47
For the health of our planet, and ourselves, we must find and foil those who breach crucial environmental treaties, says Lesley Evans Ogden
Категории: Healthcare, Science and society

Frankenstein planets may form from the wreckage of dead worlds

Genetically modified organisms (GMO) - чт, 2018-05-17 17:12
When stars die, they can explode and destroy any planets nearby. But new worlds could arise out of the debris and some could reach the mass of 10 Earths
Категории: Science and society

Frankenstein planets may form from the wreckage of dead worlds

Genetics - чт, 2018-05-17 17:12
When stars die, they can explode and destroy any planets nearby. But new worlds could arise out of the debris and some could reach the mass of 10 Earths
Категории: Biology

Frankenstein planets may form from the wreckage of dead worlds

HIV and AIDS - чт, 2018-05-17 17:12
When stars die, they can explode and destroy any planets nearby. But new worlds could arise out of the debris and some could reach the mass of 10 Earths
Категории: Healthcare, Science and society

Mystery of the cosmic dawn: What’s eating the first starlight?

Genetics - чт, 2018-05-17 17:00
A shoestring experiment in the Australian outback has seen the signal of the very first stars – and a weird effect astronomers are struggling to explain
Категории: Biology