Friday, January 6, 2023

Riddle solved: Why was Roman concrete so durable?

The ancient Romans were masters of engineering, constructing vast networks of roads, aqueducts, ports, and massive buildings, whose remains have survived for two millennia. Many of these structures were built with concrete: Rome's famed Pantheon, which has the world's largest unreinforced concrete dome and was dedicated in A.D. 128, is still intact, and some ancient Roman aqueducts still deliver water to Rome today. Meanwhile, many modern concrete structures have crumbled after a few decades.

source https://www.lifetechnology.com/blogs/life-technology-technology-news/riddle-solved-why-was-roman-concrete-so-durable

Development of standardized tests for assessing lidars in autonomous vehicles

Today, autonomous vehicles (AVs) and advanced driver assistance systems (ADASs) are rapidly growing research avenues aimed at increasing vehicle and road safety. Both technologies minimize human error by enabling cars to "perceive" their surroundings and act accordingly. This is achieved using light detection and ranging (lidar) technology, one of the most important and versatile components in AVs. Lidars provide a three-dimensional map of all objects around the vehicle regardless of external lighting conditions. This map, updated hundreds of times per second, can be used to estimate the position of the vehicle relative to its surroundings in real time.

source https://www.lifetechnology.com/blogs/life-technology-technology-news/development-of-standardized-tests-for-assessing-lidars-in-autonomous-vehicles

Scars mended using transplanted hair follicles in new study

In a new Imperial College London study involving three volunteers, skin scars began to behave more like uninjured skin after they were treated with hair follicle transplants. The scarred skin harbored new cells and blood vessels, remodeled collagen to restore healthy patterns, and even expressed genes found in healthy unscarred skin.

CES 2023: Ram electric pickup joins crowded field next year

When a futuristic-looking electric Ram pickup truck goes on sale next year, it will hardly be the first in line.

source https://www.lifetechnology.com/blogs/life-technology-technology-news/ces-2023-ram-electric-pickup-joins-crowded-field-next-year

Study details impact of prairie dog plague die-off on other species

When an outbreak of sylvatic plague decimated black-tailed prairie dog numbers in the Thunder Basin National Grassland in 2017, researchers saw an opportunity for a "natural experiment" to explore the impact of the rodents' die-off on the plants and other wildlife in that area of northeast Wyoming.

source https://www.lifetechnology.com/blogs/life-technology-science-news/study-details-impact-of-prairie-dog-plague-die-off-on-other-species

Soaring COVID cases shine light on China's healthcare gap

Understaffed and underfunded clinics stand half-empty in parts of the Chinese countryside even as hospitals in major cities heave under an unprecedented COVID wave—an illustration of the stark disparities in the country's healthcare system.

Study shows how liver cancer hijacks circadian clock machinery inside cells

The most common type of liver cancer, hepatocellular carcinoma (HCC), is already the third leading cause of cancer-related deaths globally—and cases are on the rise, both in the U.S. and worldwide. While chemotherapy, surgery and liver transplants can help some patients, targeted treatments for HCC could save millions more lives.