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GREEN BUSINESS HEADLINES
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› DNA links male, female butterfly thought to be distinct species
Researchers recently discovered what was thought to be a distinct species of butterfly is actually the female of a species known to science for more than a century. |
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› Co-infection with two common gut pathogens worsens malnutrition in mice
Two gut pathogens commonly found in malnourished children combine to worsen malnutrition and impair growth in laboratory mice, according to new research. |
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› Seeing in the dark: Minus sunlight, a general theory reveals universal patterns in ecology
By omitting mechanistic drivers such as sunlight, a statistical theory accurately describes broad ecological patterns in a Panama forest, as well as other natural systems and communities. |
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› Errors made by 'DNA spellchecker' revealed as important cause of cancer
Important processes that create mutations that cause cancer have been identified by researchers studying the genomes of more than 1,000 tumors. Many mutations in human cancers are caused by mistakes made by a repair mechanism or 'DNA spellchecker' rather than the actual damage to DNA caused by the environment. Sunlight and alcohol consumption increase the rate at which this happens, resulting in more mutations in the most important parts of our genomes, add the investigators. |
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› Which type of cell to become: Decision through indecision
From the moment of fertilization, building a human body involves a series of choices where cells generated by cell division must elect which of the myriad types of cell they will become. How does this decision occur? New research suggests that fate decision is not a unique programmed event, as was believed, but the outcome of a very dynamic process. |
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› Lab-created mini-brains reveal how growing organ maintains neuronal balance
Scientists can now explore in a laboratory dish how the human brain develops by creating organoids -- distinct, three-dimensional regions of the brain. Scientists coaxed early stage stem cells to create and fuse two types of organoids from different brain regions to show how the developing brain maintains proper balance of excitatory and inhibitory neurons. |
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› New method promises easier nanoscale manufacturing
A new way to precisely pattern nanomaterials has been revealed by researchers, who say that it could open a new path to the next generation of everyday electronic devices. |
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› Secrets of the amazing tardigrades revealed by their DNA
New genome sequences shed light on both the origins of the tardigrades (also known as water bears or moss piglets), and the genes that underlie their extraordinary ability to survive in extreme conditions. |
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› Hunting-related pathogen exposure not just for adult males
Hunting and slaughtering wild animals in Western and Central Africa can put humans at risk of contracting zoonotic infections, including Ebola virus and Lassa virus. While previous studies have suggested that this risky hunting behavior is mostly limited to adult males, a new study finds that women and children also participate. |
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› Bronze Age Iberia received fewer Steppe invaders than the rest of Europe
The genomes of individuals who lived on the Iberian Peninsula in the Bronze Age had minor genetic input from Steppe invaders, suggesting that these migrations played a smaller role in the genetic makeup and culture of Iberian people, compared to other parts of Europe. |
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› Scientists block evolution's molecular nerve pruning in rodents
Researchers investigating why some people suffer from motor disabilities report they may have dialed back evolution's clock a few ticks by blocking molecular pruning of sophisticated brain-to-limb nerve connections in maturing mice. |
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› Longstanding biological mystery of DNA organization now solved
Stretched out, the DNA from all the cells in our body would reach Pluto. So how does each tiny cell pack a two-meter length of DNA into its nucleus, which is just one-thousandth of a millimeter across? The answer to this daunting biological riddle is central to understanding how the three-dimensional organization of DNA in the nucleus influences our biology, from how our genome orchestrates our cellular activity to how genes are passed from parents to children. |
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