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Wednesday, November 21, 2018

Shrubs more expansive than trees

Shrubs are more widespread than trees in nature and on Earth. A new study explains their global success. It turns out that the multiple stems of shrubs are of key importance. This feature contributes to both better growth and better survival than in trees of similar size, according to the research team behind the study.

Rapid adaptation of Aspergillus fungus presents doctors with a dilemma

The fungus Aspergillus fumigatus is capable of rapid genetic adaptation in both natural environments and in humans according to a study. This presents doctors with a dilemma: prescribe medication that may increase drug resistance or not providing treatment and increase the likelihood of the fungus settling in the lungs?

Gaps in data place thousands of illegally traded wild animals at risk, say researchers

The fate of over 64,000 live wild animals officially reported to have been confiscated by enforcement agencies remains untraceable, according to a new report. Between 2010 and 2014, more than 64,000 live wild animals were officially reported as seized by wildlife enforcement agencies according to the Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES) trade database.

How plants grow new lateral roots: New method uses 3D live imaging

Researchers have used 3D live imaging to observe the formation process of lateral roots in plants, and clarified part of the mechanism that creates new meristematic tissue. If the root formation mechanism in plants is revealed further, this could potentially be used to control plant growth by artificially altering root system architecture.

Soil modeling to help curb climate change

Soil is a major carbon pool, whose impact on climate change is still not fully understood. According to a recent study, however, soil carbon stocks and could be modeled more accurately by factoring in the impacts of both soil nutrient status and soil composition. Determining the volume of carbon dioxide efflux from soil is important to enabling better choices in forest management with respect to curbing climate change.

An algorithm for taxi sharing

Researchers in Uruguay have developed an evolutionary algorithm to allow a smart city to facilitate efficient taxi sharing to cut an individual's transport costs as well as reduce congestion and traffic pollution.

Ancestor of arthropods had the mouth of a penis worm

Imagine a meter long worm with 12 stubby legs and matching sets of flaps running down the body. On the head is a large pair of spiny appendages used for grasping prey that transport victims into a circular mouth with several rows of teeth. For years, scientists have disagreed over whether this mouth belonged to the Anomalocaris, the largest sea predator from the Cambrian Period, or was comparable to the penis worm, a subset of priapulids, a category of marine worms that were diverse in the Cambrian.

Shape-shifters found in the Belt Supergroup: Revelations about Tappania plana

The rise of eukaryotic organisms (organisms with complex cells, or a single cell with a complex structure) is still a mystery, but researchers have compelling evidence that Tappania plana may represent one of the earliest eukaryotic fossils. Well-preserved Tappania plana fossils from a Montana field site could be a crown-group eukaryote, providing one of the first links from this period in the fossil record to extant eukaryotes.

Acidity in atmosphere minimized to preindustrial levels

New research shows that human pollution of the atmosphere with acid is now almost back to the level that it was before the pollution started with industrialization in the 1930s. The results come from studies of the Greenland ice sheet.

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Lawmakers denounce Trump’s backing of Saudis, despite Khashoggi killing

Republicans and Democrats condemned Trump's decision to stand by Saudi Arabia, despite CIA's assessment of the Saudi journalist's murder

Trump backs Saudi Arabia despite killing of journalist

President Trump issued a statement standing by the U.S. alliance with Saudi Arabia despite the CIA's assessment that Saudi Crown Prince Mohammed bin Salman ordered the killing of journalist Jamal Khashoggi. CBS News political correspondent Ed O'Keefe joins CBSN with more.

Trump defends Saudi Arabia ties despite Khashoggi murder

The president points to Saudi investments in the US amid anger over writer Jamal Khashoggi's murder. Source: BBC