Hong Kong Baptist University-led research unlocks the genomic secrets of organisms that thrive in extreme deep-sea environments livenews.co.nz - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from livenews.co.nz Daily Mail and Mail on Sunday newspapers.
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IMAGE: Changes in average start dates and lengths of the four seasons in the Northern
Hemisphere mid-latitudes for 1952, 2011 and 2100. view more
Credit: Wang et al 2020/Geophysical Research Letters/AGU.
WASHINGTON Without efforts to mitigate climate change, summers spanning nearly six months may become the new normal by 2100 in the Northern Hemisphere, according to a new study. The change would likely have far-reaching impacts on agriculture, human health and the environment, according to the study authors.
In the 1950s in the Northern Hemisphere, the four seasons arrived in a predictable and fairly even pattern. But climate change is now driving dramatic and irregular changes to the length and start dates of the seasons, which may become more extreme in the future under a business-as-usual climate scenario.
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Toxin-antitoxin (TA) systems are now known to negatively control plasmid replication, according to Thomas Wood, Biotechnology Endowed Chair and professor of chemical engineering in the Penn State College of Engineering.
Plasmids, or extra-chromosomal bits of DNA, allow bacteria to evade antibiotics, making the antibiotics ineffective in halting a bacterial infection.
The presence or absence of plasmids impacts a bacterium s resistance to antibiotics and its ability to cause infection important points related to fighting bacterial infections, according to Wood. Each year, there are at least 700,000 deaths worldwide because of bacterial infections, a growing number that is projected to increase to 10 million by 2050, Wood said. And of course, the effectiveness of antibiotics is critical to healing from any type of bacterial infection.
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China has started building an unmanned intelligent research mothership expected to conduct marine surveys by coordinating with drones, unmanned ships or submersibles, its developer said Sunday.
The ship is expected to be delivered in 2022, according to Zhou Ning, chief scientist of the unmanned equipment team in Southern Marine Science and Engineering Guangdong Laboratory. It will be China s first research ship that can be remotely controlled and navigate autonomously, as well as the first mothership that can achieve coordination among different unmanned systems in the air, on the ocean surface and under it, said Fan Lei, chief constructor of CSSC Huangpu Wenchong Shipbuilding Co. Ltd.
China science, technology news summary -- Dec 21 beijingbulletin.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from beijingbulletin.com Daily Mail and Mail on Sunday newspapers.