feed info

5 articles from ScienceNOW

Dredged lake sediment could nourish new crops

Every year, farmers fertilize their crops with nitrogen and phosphorus to ensure a good harvest. And every year some of that fertilizer inevitably makes its way into ponds and lakes, where it can trigger ecosystem-wrecking algal blooms. According to a new study published last month in Science of the Total Environment , though, there may be a relatively simple way to close...

In frenzied vote, Mexico's lawmakers pass controversial science reform bill

A controversial effort by Mexico’s president to reshape the nation’s research funding and governance system has reached a chaotic conclusion that clears the way for the bill to become law. Many scientists strongly oppose the measure, saying it will tighten government control over science. But it was approved in a rapid-fire series of votes last week, including one on 29 April when...

Cesarean deliveries are rising in Rwanda. AI could reduce the risks

Over the past 2 decades, Rwanda, like many other countries, has witnessed a significant increase in cesarean deliveries. Nearly 16% of the nation’s newborns were delivered by the surgical procedure in 2020, up from about 2% in 2000, according to recent research . The rise has been fueled by improved maternal health services and increased access to affordable...

Conservation app’s censoring of observation data could hurt threatened species, scientists argue

Rusby Contreras-Díaz was scrolling through a biodiversity database, looking at places where people had spotted margays and jaguars, when she noticed something odd: Every location had an uncertainty of 30 kilometers. Contreras-Díaz—a mammologist at the National Autonomous University of Mexico—had hoped to use the observations to map where the two carnivores were found in Mexico....

Burst of brain activity during dying could explain life passing before your eyes

Many people who have come close to death or have been resuscitated report a similar experience: Their lives flash before their eyes, memorable moments replay, and they may undergo an out-of-body experience, sensing they’re looking at themselves from elsewhere in the room. Now, a small study mapping the brain activity of four people while they were dying shows a burst of activity in...