178 articles from WEDNESDAY 3.11.2021

Covid has caused 28m years of life to be lost, study finds

Oxford researchers arrive at virus’s toll in 31 countries by looking at deaths and age they occurredCoronavirus – latest updatesSee all our coronavirus coverageCovid has caused the loss of 28m years of life, according to the largest-ever survey to assess the scale of the impact of the pandemic.The enormous toll was revealed in research, led by the University of Oxford, which calculated the...

It takes cellular teamwork to heal the intestine

A meticulous single-cell analytical approach to study the repair process of rotavirus-caused injury in an animal model revealed that the damaged epithelium contains a variety of cell types involved in repairing it through broad coordinated responses that ultimately heal the damaged tissue.

Comparing photosynthetic differences between wild and domesticated rice

Millions of people in Asia are dependent on rice as a food source. Believed to have been domesticated as early as 6000 BCE, rice is an important source of calories globally. In a new study from the RIPE project, researchers compared domesticated rice to its wild counterparts to understand the differences in their photosynthetic capabilities. The results can help improve future rice productivity.

History of insect invasions offers insight into the future

Over the past two centuries, thousands of non-native insects have hitchhiked to the United States in packing material, on live plants, and in passenger baggage. Scientists with two U.S. Department of Agriculture (USDA) agencies and their partners used the history of live plant imports and invasion by a common group of insects to estimate the rate at which new insects are arriving and how many new...

History of insect invasions offer insight into the future

Results from a recently published study suggest that efforts to reduce biological hitchhiking on live plant imports, often referred to as 'biosecurity,' are working. However, more than a century of invasion by Hemiptera insects also suggests that increased trade might offset the effects of improved biosecurity. As many as 25 percent of invading Hemiptera insects may have yet to be detected in the...

A Comet May Have Exploded Over Chile 12,000 Years Ago—and it Could Happen Again

You wouldn’t want much to do with Chile’s Atacama Desert today. Officially designated the driest place in the world, it has an average annual rainfall of just 15 mm (0.6 in.). Some parts of the 103,000 sq. km (40,500 sq. mi) expanse get no rain at all. But 12,000 years ago, at the end of the Pleistocene era, things were different. Megafauna like sloths and early horses roamed what...

India’s 2070 net-zero pledge is achievable, appropriate, and right on time

India has officially joined the net-zero pledge club, and its 2070 target presents a reasonable, if challenging, timeline for the country. The commitment was announced by Prime Minister Narendra Modi on November 1 at the COP26 UN climate conference. While the target date is still decades away, and later than the 2050 goal set by many other countries, experts say it’s an ambitious and...

Hester McFarland Solomon obituary

My friend, Hester McFarland Solomon, who has died aged 78, dedicated her professional life to the treatment of psychological illness, as a noted Jungian psychoanalyst of the developmental school. She rose to the heights of her profession as an analyst, author, teacher and administrator, and in 2007 became only the second female president of the International Association for Analytical Psychology...

Laboratory will illuminate formation, composition, activity of comets

Researchers have developed a laboratory to simulate comets in space-like conditions. The goal of the Comet Physics Laboratory is to understand the internal structure of comets, as well as how their constituent materials form and react. Many of the lab's future experiments will involve creating sample comet materials with differing compositions. By testing those materials in the space-like chamber,...

Autonomous robotic rover helps scientists with long-term monitoring of deep-sea carbon cycle and climate change

For the past seven years, an autonomous robotic rover, Benthic Rover II, has been continuously operational 225 kilometers off the coast of central California and 4,000 meters below the ocean's surface. This innovative mobile laboratory has further revealed the role of the deep sea in cycling carbon. The data collected by this rover are fundamental to understanding the impacts of climate change on...

A new dimension in magnetism and superconductivity is launched

An international team of scientists from Austria and Germany has launched a new paradigm in magnetism and superconductivity, putting effects of curvature, topology, and 3D geometry into the spotlight of next-decade research. The results are published in Advanced Materials.

Combining two ‘old therapies’ packs a powerful punch against pediatric brain tumors

Copper has been clinically improving the lives of people since about 1500 BCE, when an Egyptian physician first recorded its use as a treatment for inflammation. Some 35 centuries later, researchers have provided solid evidence that the first metal used medicinally may now have a new role -- helping save children from a devastating central nervous system cancer known as medulloblastoma.