Tag Archives: Ancient DNA

Research Preview: Nature Magazine – Nov 2, 2023

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nature Magazine – November 2, 2023: The latest issue cover features an artist’s impression of the collision between the protoplanet Theia and proto-Earth about 4.5 billion years ago. It has been suggested that it was this ‘Giant Impact’ that formed the Moon, but direct evidence for the existence of Theia remains elusive.

Ancient DNA reveals traces of elusive first humans in Europe

Europe’s earliest Homo sapiens seemed to have vanished without a genetic legacy — but genomic studies now show otherwise.

‘Mind-blowing’ IBM chip speeds up AI

IBM’s NorthPole processor sidesteps need to access external memory, boosting computing power and saving energy.

Research Preview: Science Magazine – Oct 13, 2023

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Science Magazine – October 13, 2023: The new issue features the genetic organization of the human brain; Diversity of primate brain cells unraveled; A single-cell genomic atlas for maturation of the human cerebellum during early childhood, and more…

A family portrait of human brain cells

A cell census provides information on the source of human brain specialization

The brain is composed of multiple regions associated with distinct functions, which have become further specialized in the human lineage. To define how this specialization is implemented, how it arises during development, and how it has emerged over the course of human evolution, a detailed understanding of the cells that make up the human brain is required. 

The ecology of whales in a changing climate

Some whale populations are exhibiting unexpected cycles of boom and bust

Research Preview: Science Magazine – October 6, 2023

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Science Magazine – October 6, 2023: The new issue features Ancient DNA; The risks of radioactive waste water release; Dating the arrival of humans in the Americas; and more…

The risks of radioactive waste water release

The wastewater releas e from the Fukushima Daiichi nuclear plant is expected to have negligible effects on people and the ocean

In 2011, the east coast of Japan suffered an earthquake and tsunami that resulted in the meltdown of three of the reactors at the Fukushima Daiichi nuclear plant. This led to an uncontrolled release of large amounts of radioactive material to the surrounding land and to the Pacific Ocean. 

Dating the arrival of humans in the Americas

A debate about the age of ancient footprints continues

Dating the oldest evidence for the presence of Homo sapiens in the Americas is a matter of ongoing debate. One view is that the earliest such evidence is from 16,000 to 14,000 years ago, after the Last Glacial Maximum (LGM), when people would have crossed the Beringian strait from Siberia over a dry land bridge.

Research Preview: Science Magazine – March 10, 2023

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Science Magazine – March 10, 2023 issue: A honey bee (Apis mellifera) performs a complex dance to communicate resource location and value. Research now shows that novice bees dance better and communicate location more accurately if they were previously able to follow and socially learn from more experienced dancers. 

MRI for all: Cheap portable scanners aim to revolutionize medical imaging

A technician pushes a portable MRI scanner through a hospital hallway.

But will doctors embrace the grainier, lower-resolution images of the body’s insides?

Hidden hydrogen: Earth may hold vast stores of a renewable, carbon-free fuel

Overlooked by the oil industry, natural hydrogen could power society for thousands of years

Oceans away: Is raising salmon on land the next big thing in farming fish?

Giant tanks full of Atlantic salmon could help meet rising demand while lowering environmental impact

Research Preview: Science Magazine – March 3, 2023

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Science Magazine – March 3, 2023 issue: The substantial grapevine diversity in the world, showcased here by the vigorous ‘Saperavi’ variety in the Kakheti region of Georgia, reveals secrets about human agricultural history. A genomic survey uncovers two concurrent domestication origins of this essential vine. It also shows how Western Asian table grapes diversified along human migration trails into muscat and unique western wine grapes. 

Ancient DNA upends European prehistory

Genes reveal striking diversity within similar ice age cultures

Hundred million years of landscape dynamics from catchment to global scale

Our capability to reconstruct past landscapes and the processes that shape them underpins our understanding of paleo-Earth. We take advantage of a global-scale landscape evolution model assimilating paleoelevation and paleoclimate reconstructions over the past 100 million years.

Research Preview: Science Magazine – August 26, 2022

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Ancient DNA from the Near East probes a cradle of civilization

Studies seek clues to origins of farming, early languages

Global drought experiment reveals the toll on plant growth

Artificial droughts sharply cut carbon storage

Researchers watch how Arctic storms chew up sea ice

Airborne campaign to study summer cyclones could reveal air-ice interactions

Deadly bird flu establishes a foothold in North America

H5N1 has continued to kill wild birds and poultry this summer. The fall migration could bring it back in force

Many-eyed scope will make movies of the stars

Argus Array will combine hundreds of off-the-shelf telescopes to capture fleeting events

FEATURE

Sparkling waters

Tiny Caribbean crustaceans and their bioluminescent mating displays are shining new light on evolution