Latest Science News -- ScienceDaily
Sweet, bitter, fat: Genetics play a role in kids' snacking patterns
Thu, 22 Feb 2018 16:21:32 EST
The types of snacks a child chooses could be linked to genetics, a new study found. The study investigated whether genetic variants in taste receptors related to sweet, fat and bitter tastes influence the snacks preschoolers choose and found nearly 80 per cent carried at least one of these genotypes that could predispose them to poor snacking habits. These findings could help parents tailor their kids' diets based on their genetics of taste.
The global footprint of fisheries
Thu, 22 Feb 2018 16:21:24 EST
The global fishing fleet is so big it can be seen from space. Really.
Turning light upside down
Thu, 22 Feb 2018 16:21:16 EST
Researchers have developed a 'hyperbolic metasurface' on which light propagates with completely reshaped wavefronts. The achievement towards a more precise control and monitoring of light is particularly relevant to the technological challenges of miniaturizing optical devices for sensing and signal processing.
Monkey Vocabulary Decoded
Thu, 22 Feb 2018 15:02:42 EST
From short 'tsiks' and 'ekks' to drawn-out 'phees' -- all the sounds produced by marmoset monkeys are made up of individual syllables of fixed length, according to a new study. The smallest units of vocalization and their rhythmic production in the brain of our relatives could also have been a prerequisite of human speech.
Surprising new study redraws family tree of domesticated and 'wild' horses
Thu, 22 Feb 2018 14:51:32 EST
New research overturns a long-held assumption that Przewalski's horses, native to the Eurasian steppes, are the last wild horse species on Earth.
DNA gets away: Scientists catch the rogue molecule that can trigger autoimmunity
Thu, 22 Feb 2018 14:51:28 EST
A research team has discovered the process -- and filmed the actual moment -- that can change the body's response to a dying cell. Importantly, what they call the 'Great Escape' moment may one day prove to be the crucial trigger for autoimmune diseases like arthritis.
Newly designed molecule binds nitrogen
Thu, 22 Feb 2018 14:51:25 EST
Chemists have developed a boron-based molecule capable of binding nitrogen without assistance from a transition metal. This might be the first step towards the energy-saving production of fertilizers.
Evolutionary change in protein function respects biophysical principles
Thu, 22 Feb 2018 14:51:04 EST
Some molecular biologists who study the proteins that regulate cell operations do not confine their research to understanding the molecules' current roles. They also look deep into the proteins' evolutionary past to explore what structures have allowed proteins with new functions to develop in response to new needs.
Understanding the wetting of micro-textured surfaces can help give them new functionalities
Thu, 22 Feb 2018 14:50:59 EST
The wetting and adhesion characteristics of solid surfaces critically depend on their fine structures. However, until now, our understanding of exactly how the sliding behavior of liquid droplets depends on surface microstructures has been limited. Now, physicists have conducted experimental and theoretical studies on the friction of liquid droplets on micro-structured surfaces.
Developing reliable quantum computers
Thu, 22 Feb 2018 14:50:56 EST
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can't manage. But how do you test a quantum computer to ensure it is working reliably£ Depending on the algorithmic task, this could be an easy or a very difficult certification problem. An international team of researchers has taken an important step towards solving a difficult variation of this problem, using a statistical approach.
Quantum recurrence: Everything goes back to the way it was
Thu, 22 Feb 2018 14:50:53 EST
When a complex system is left alone, it will return to its initial state with almost perfect precision. Gas particles in a container, for example, will return almost exactly to their starting positions after some time. For decades, scientists have investigated how this 'Poincaré Recurrence Theorem' can be applied to the world of quantum physics. Now, researchers have successfully demonstrated a kind of 'Poincaré recurrence' in a multi-particle quantum system.
The Australian government's plan for the biocontrol of the common carp presents several risks
Thu, 22 Feb 2018 14:50:48 EST
Scientists are calling on the Australian authorities to review their decision to introduce the carp herpes virus as a way to combat the common carp having colonized the country's rivers. They not only believe that this measure will be ineffective but that it also represents a risk to ecosystems.
Looking for the origins of schizophrenia
Thu, 22 Feb 2018 14:50:45 EST
Schizophrenia may be related to neurodevelopment changes, including brain's inability to create the appropriate vascular system, according to new study. The results broaden the understanding about the causes of this severe and disabling disorder, which affects about 1 percent of the world's population.
In living color: Seeing cells from outside the body with synthetic bioluminescence
Thu, 22 Feb 2018 14:50:18 EST
Glowing creatures like fireflies and jellyfish are captivating to look at but also a boon for science, as their bioluminescent molecules contribute to visualizing a host of biological processes. Now, scientists have supercharged these molecules, making them hundreds of times brighter in deep tissues and allowing for imaging of cells from outside the body. The bioengineered light source was used to track cancer cells in mice and brain-cell activity in monkeys, but its applications extend beyond the lab.
Neanderthals were artistic like modern humans
Thu, 22 Feb 2018 14:49:43 EST
Scientists have found the first major evidence that Neanderthals, rather than modern humans, created the world's oldest known cave paintings -- suggesting they may have had an artistic sense similar to our own.
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