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Should we revisit ethically dubious experiments from the past?

Genetics - Mon, 2018-02-19 12:00
From deadly Nazi medical experiments to sociological studies on children, past science has taken paths we wouldn't tread today, but the results still have value
Categories: Biology

Mute crickets can’t chirp but rub their wings together anyway

HIV and AIDS - Mon, 2018-02-19 11:00
Male Hawaiian crickets that have lost the ability to chirp still go through the motion of “singing”, even though females can’t hear them

Mute crickets can’t chirp but rub their wings together anyway

Genetically modified organisms (GMO) - Mon, 2018-02-19 11:00
Male Hawaiian crickets that have lost the ability to chirp still go through the motion of “singing”, even though females can’t hear them
Categories: Science and society

Mute crickets can’t chirp but rub their wings together anyway

Genetics - Mon, 2018-02-19 11:00
Male Hawaiian crickets that have lost the ability to chirp still go through the motion of “singing”, even though females can’t hear them
Categories: Biology

Our cities are driving evolution and it’s not all bad news

Genetically modified organisms (GMO) - Sun, 2018-02-18 12:00
Urbanisation may be overrunning our planet, but in his book Darwin Comes to Town, evolutionary biologist Menno Schilthuizen seeks – and finds – the positives
Categories: Science and society

Our cities are driving evolution and it’s not all bad news

Genetics - Sun, 2018-02-18 12:00
Urbanisation may be overrunning our planet, but in his book Darwin Comes to Town, evolutionary biologist Menno Schilthuizen seeks – and finds – the positives
Categories: Biology

Long haul with a free conscience

Genetics - Sun, 2018-02-18 09:00
Gone West is offering travellers and businesses a simple way to reduce their carbon footprints
Categories: Biology

Electronic skin animates heartbeat on the back of your hand

HIV and AIDS - Sat, 2018-02-17 19:00
A flexible e-skin containing a few hundred micro LEDs can display your vital signs or messages from your doctor

Electronic skin animates heartbeat on the back of your hand

Genetics - Sat, 2018-02-17 19:00
A flexible e-skin containing a few hundred micro LEDs can display your vital signs or messages from your doctor
Categories: Biology

Electronic skin animates heartbeat on the back of your hand

Genetically modified organisms (GMO) - Sat, 2018-02-17 19:00
A flexible e-skin containing a few hundred micro LEDs can display your vital signs or messages from your doctor
Categories: Science and society

William Harvey: The delightful inside story of blood

Genetics - Sat, 2018-02-17 12:00
He spent 10 painstaking years working out how our blood really circulates: 17th-century physician William Harvey deserves his own London exhibition
Categories: Biology

William Harvey: The delightful inside story of blood

Genetically modified organisms (GMO) - Sat, 2018-02-17 12:00
He spent 10 painstaking years working out how our blood really circulates: 17th-century physician William Harvey deserves his own London exhibition
Categories: Science and society

A damped oscillator imposes temporal order on posterior gap gene expression in <i>Drosophila</i>

PLOS Biology (new articles) - Sat, 2018-02-17 00:00

by Berta Verd, Erik Clark, Karl R. Wotton, Hilde Janssens, Eva Jiménez-Guri, Anton Crombach, Johannes Jaeger

Insects determine their body segments in two different ways. Short-germband insects, such as the flour beetle Tribolium castaneum, use a molecular clock to establish segments sequentially. In contrast, long-germband insects, such as the vinegar fly Drosophila melanogaster, determine all segments simultaneously through a hierarchical cascade of gene regulation. Gap genes constitute the first layer of the Drosophila segmentation gene hierarchy, downstream of maternal gradients such as that of Caudal (Cad). We use data-driven mathematical modelling and phase space analysis to show that shifting gap domains in the posterior half of the Drosophila embryo are an emergent property of a robust damped oscillator mechanism, suggesting that the regulatory dynamics underlying long- and short-germband segmentation are much more similar than previously thought. In Tribolium, Cad has been proposed to modulate the frequency of the segmentation oscillator. Surprisingly, our simulations and experiments show that the shift rate of posterior gap domains is independent of maternal Cad levels in Drosophila. Our results suggest a novel evolutionary scenario for the short- to long-germband transition and help explain why this transition occurred convergently multiple times during the radiation of the holometabolan insects.
Categories: Biology, Journals

Quantum computer could have predicted Trump’s surprise election

HIV and AIDS - Fri, 2018-02-16 19:47
Quantum computers can improve election forecasts by taking into account how states affect one another, allowing one to predict Trump's slim 2016 election win

Quantum computer could have predicted Trump’s surprise election

Genetically modified organisms (GMO) - Fri, 2018-02-16 19:47
Quantum computers can improve election forecasts by taking into account how states affect one another, allowing one to predict Trump's slim 2016 election win
Categories: Science and society

Quantum computer could have predicted Trump’s surprise election

Genetics - Fri, 2018-02-16 19:47
Quantum computers can improve election forecasts by taking into account how states affect one another, allowing one to predict Trump's slim 2016 election win
Categories: Biology

CRISPR has fixed the genetic cause of a learning disability

Genetically modified organisms (GMO) - Fri, 2018-02-16 15:00
CRISPR gene editing has been used to alleviate the genetic disorder fragile X syndrome, but the technique has only been tried in cells in a dish so far
Categories: Science and society

CRISPR has fixed the genetic cause of a learning disability

Genetics - Fri, 2018-02-16 15:00
CRISPR gene editing has been used to alleviate the genetic disorder fragile X syndrome, but the technique has only been tried in cells in a dish so far
Categories: Biology

CRISPR has fixed the genetic cause of a learning disability

HIV and AIDS - Fri, 2018-02-16 15:00
CRISPR gene editing has been used to alleviate the genetic disorder fragile X syndrome, but the technique has only been tried in cells in a dish so far

World without sand: The race to save a precious resource

Genetically modified organisms (GMO) - Fri, 2018-02-16 14:30
From electronics to concrete, modern life depends on sand. With supplies running low and mines harming the environment, it’s time to use it smarter
Categories: Science and society