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Fri, 17 Nov 2017 14:17:56 EST
A photosynthetic organism's 'Water World'
Following the path of radicals and being able to identify many damaged residues because of incredibly accurate, expeditious and sensitive mass spectrometry, three scientists studied the great granddaddy of all photosynthetic organisms -- a strain of cyanobacteria -- to develop the first experimental map of that organism's water world.
Fri, 17 Nov 2017 14:17:51 EST
Interstellar space probes: Where's the brakes?
With a miniaturized space probe capable of being accelerated to a quarter of the speed of light, we could reach Alpha Centauri, our nearest star, in 20 to 50 years. However, without a mechanism to slow it down, the space probe could only collect data from the star and its planets as it zoomed past. A theoretical physicist has now examined whether interstellar spacecraft can be decelerated using 'magnetic sails'.
Fri, 17 Nov 2017 14:17:48 EST
A sub-desert savanna spread across Madrid 14 million years ago
The current landscape of Madrid city and its vicinity was really different 14 million years ago. A semi-desert savanna has been inferred for the center of the Iberian Peninsula in the middle Miocene. This ecosystem was characterized by a very arid tropical climatic regime with up to ten months of drought per year, according to a recent paper. Scientists reached such conclusions after comparing mammal fauna with Africa and Asia ones.
Fri, 17 Nov 2017 14:17:23 EST
Making it easier to recycle plastics
Researchers report new approaches could dramatically increase the amount of plastic waste that can be successfully recycled.
Fri, 17 Nov 2017 11:54:52 EST
Progesterone to fight preterm birth
A new study provides additional support for treatment with vaginal progesterone to reduce the risk of preterm birth, neonatal complications and infant death in pregnant women with a short cervix. A shortened cervix is the most powerful predictor of preterm birth.
Fri, 17 Nov 2017 10:38:23 EST
Seagrass is a key fishing ground globally
New research demonstrates that seagrass meadows are important fishing grounds all around the globe. The work highlights that there is an urgent need to start appreciating and understanding this role to be able to build more sustainable fisheries. A study examines the global extent to which these underwater meadows support fishing activity.
Fri, 17 Nov 2017 10:38:20 EST
What grosses out a chimpanzee? The origins of disgust
Chimps show increased latencies to feed, and tendencies to maintain greater distances from possible contaminants and/or outright refusals to consume food in test conditions, hinting at the origins of disgust in humans.
Fri, 17 Nov 2017 10:38:14 EST
Asthma attacks reduced in tree-lined urban neighborhoods
People living in polluted urban areas are far less likely to be admitted to hospital with asthma when there are lots of trees in their neighborhood, a new study has found.
Fri, 17 Nov 2017 10:38:08 EST
First-graders fitter than expected
Childhood obesity is often attributed to a lack of exercise. So what about sports among elementary school students? Scientists have pursued this question and collected the results of fitness tests for first-year students over a period of one decade. Their study shows that students did not lose their strength. Speed or balance even increased over the time of 10 years. One change was in the boys, whose endurance decreased compared to the girls of the same age.
Fri, 17 Nov 2017 10:38:05 EST
Protein key to cancer cells ability to spread identified
Scientists have made a discovery that could reduce the spread of cancer by hindering a protein that binds cancer cells together and allows them to invade tissues. The groundbreaking study identified a protein, known as cadherin-22, as a potential factor in cancer metastasis, or spread, and showed that hindering it decreased the adhesion and invasion rate of breast and brain cancer cells by up to 90 percent.
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