Feed aggregator

Valentine’s Day seems to cause a mini baby-boom 9 months later

HIV and AIDS - ср, 2018-02-14 12:41
National Health Service data reveals that around Valentine’s Day there is a 5 per cent rise in the number of babies conceived in England
Категории: Healthcare, Science and society

China’s reckless attitude to space debris needs to change

Genetically modified organisms (GMO) - ср, 2018-02-14 12:13
Recent near misses show China's pursuit of space prowess seems to trump debris risks. The re-entry of its space station is another looming drama, says Paul Marks
Категории: Science and society

China’s reckless attitude to space debris needs to change

Genetics - ср, 2018-02-14 12:13
Recent near misses show China's pursuit of space prowess seems to trump debris risks. The re-entry of its space station is another looming drama, says Paul Marks
Категории: Biology

China’s reckless attitude to space debris needs to change

HIV and AIDS - ср, 2018-02-14 12:13
Recent near misses show China's pursuit of space prowess seems to trump debris risks. The re-entry of its space station is another looming drama, says Paul Marks
Категории: Healthcare, Science and society

Ants care for wounded comrades by licking their wounds clean

Genetics - ср, 2018-02-14 02:01
If a Matabele ant loses a limb in a battle with termites, its nestmates will tend its injuries - a behaviour never before seen in any non-human animal
Категории: Biology

Ants care for wounded comrades by licking their wounds clean

HIV and AIDS - ср, 2018-02-14 02:01
If a Matabele ant loses a limb in a battle with termites, its nestmates will tend its injuries - a behaviour never before seen in any non-human animal
Категории: Healthcare, Science and society

Ants care for wounded comrades by licking their wounds clean

Genetically modified organisms (GMO) - ср, 2018-02-14 02:01
If a Matabele ant loses a limb in a battle with termites, its nestmates will tend its injuries - a behaviour never before seen in any non-human animal
Категории: Science and society

Multi-stability with ambiguous visual stimuli in <i>Drosophila</i> orientation behavior

PLOS Biology (new articles) - ср, 2018-02-14 00:00

by Franziska Toepfer, Reinhard Wolf, Martin Heisenberg

It is widely accepted for humans and higher animals that vision is an active process in which the organism interprets the stimulus. To find out whether this also holds for lower animals, we designed an ambiguous motion stimulus, which serves as something like a multi-stable perception paradigm in Drosophila behavior. Confronted with a uniform panoramic texture in a closed-loop situation in stationary flight, the flies adjust their yaw torque to stabilize their virtual self-rotation. To make the visual input ambiguous, we added a second texture. Both textures got a rotatory bias to move into opposite directions at a constant relative angular velocity. The results indicate that the fly now had three possible frames of reference for self-rotation: either of the two motion components as well as the integrated motion vector of the two. In this ambiguous stimulus situation, the flies generated a continuous sequence of behaviors, each one adjusted to one or another of the three references.
Категории: Biology, Journals

Opioid painkillers are prescribed more in northern England

Genetics - вт, 2018-02-13 20:00
The opioid crisis may have crossed the Atlantic, with signs that opioid painkillers are prescribed more in England in socially-deprived areas in the north
Категории: Biology

Opioid painkillers are prescribed more in northern England

HIV and AIDS - вт, 2018-02-13 20:00
The opioid crisis may have crossed the Atlantic, with signs that opioid painkillers are prescribed more in England in socially-deprived areas in the north
Категории: Healthcare, Science and society

Opioid painkillers are prescribed more in northern England

Genetically modified organisms (GMO) - вт, 2018-02-13 20:00
The opioid crisis may have crossed the Atlantic, with signs that opioid painkillers are prescribed more in England in socially-deprived areas in the north
Категории: Science and society

Face-recognition software is perfect – if you’re a white man

Genetics - вт, 2018-02-13 19:26
Three leading face-recognition systems correctly identified white men 99 per cent of the time but did badly at identifying women with darker skin
Категории: Biology

Face-recognition software is perfect – if you’re a white man

HIV and AIDS - вт, 2018-02-13 19:26
Three leading face-recognition systems correctly identified white men 99 per cent of the time but did badly at identifying women with darker skin
Категории: Healthcare, Science and society

Face-recognition software is perfect – if you’re a white man

Genetically modified organisms (GMO) - вт, 2018-02-13 19:26
Three leading face-recognition systems correctly identified white men 99 per cent of the time but did badly at identifying women with darker skin
Категории: Science and society

Skincare science is frivolous and warrants attack, right? Wrong

Genetics - вт, 2018-02-13 19:12
It won't save the world and is misused in adverts but skincare science isn’t nonsense. So why is resurgent interest in it under fire, wonders Lara Williams
Категории: Biology

Skincare science is frivolous and warrants attack, right? Wrong

HIV and AIDS - вт, 2018-02-13 19:12
It won't save the world and is misused in adverts but skincare science isn’t nonsense. So why is resurgent interest in it under fire, wonders Lara Williams
Категории: Healthcare, Science and society

Skincare science is frivolous and warrants attack, right? Wrong

Genetically modified organisms (GMO) - вт, 2018-02-13 19:12
It won't save the world and is misused in adverts but skincare science isn’t nonsense. So why is resurgent interest in it under fire, wonders Lara Williams
Категории: Science and society

Expedition to uncover hidden life in mystery Antarctic realm

Genetics - вт, 2018-02-13 17:30
In July 2017 a huge iceberg broke away from Antarctica’s Larsen C ice shelf, revealing a marine world that was concealed for thousands of years
Категории: Biology

Expedition to uncover hidden life in mystery Antarctic realm

HIV and AIDS - вт, 2018-02-13 17:30
In July 2017 a huge iceberg broke away from Antarctica’s Larsen C ice shelf, revealing a marine world that was concealed for thousands of years
Категории: Healthcare, Science and society

Expedition to uncover hidden life in mystery Antarctic realm

Genetically modified organisms (GMO) - вт, 2018-02-13 17:30
In July 2017 a huge iceberg broke away from Antarctica’s Larsen C ice shelf, revealing a marine world that was concealed for thousands of years
Категории: Science and society