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38 articles from ScienceDaily

First global map of cargo ship pollution reveals effects of fuel regulations

A new study used satellite data from 2003 -- 2020 to determine the effect of fuel regulations on pollution from cargo ships. The research team's data revealed significant changes in sulfur pollution after regulations went into effect in 2015 and 2020. Their extensive data set can also help scientists determine the extent of the cooling effect of particulate matter when it interacts with clouds....

Why are some birds more intelligent than others?

If you've ever seen a grackle steal your dog pellets or a starling peck open a garbage bag, you get a sense of that some birds have learned to take advantage of new feeding opportunities -- a clear sign of their intelligence. Scientists have long wondered why certain species of birds are more innovative than others, and whether these capacities stem from larger brains (which intuitively seems...

Computer modelling aims to inform restoration, conservation of coral reefs

A research team has created a computer modelling program to help scientists predict the effect of climate damage and eventual restoration plans on coral reefs around the globe. This is a critical objective because climate change is killing many coral species and can lead to the collapse of entire coral reef ecosystems, according to researchers.

Researchers create biosensor by turning spider silk into optical fiber

Researchers have harnessed the light-guiding properties of spider silk to develop a sensor that can be used to determine concentrations of fructose, sucrose and glucose sugars based on changes in a solution's refractive index. The new light-based sensor might one day be useful for measuring blood sugar and other biochemical analytes.

Flare-ups of gout are linked to heart attack and stroke

Experts have found that the risk of heart attacks and strokes temporarily increases in the four months after a gout flare. The research showed that gout patients who suffered from a heart attack or stroke were twice as likely to have had a gout flare in the 60 days prior to the event, and one and a half times more likely to have a gout flare in the 61-120 days prior.

We need to change how we think about soil

With record temperatures this summer along with dry conditions, ongoing concerns about food security, wildlife habitats and biodiversity, having a healthy soil system is more vital and challenging than ever before. But what does the term 'soil health' mean and how should we measure it? New research says that how we think about, measure and study soil must be changed to give a better understanding...

Smaller airways increase COPD risk for women

Structural differences in lung airways between men and woman may be the cause of differences in chronic obstructive pulmonary disease (COPD) prevalence and outcomes between the sexes. According to a large, multicenter study, researchers found that even among adults who have never smoked, or who have smoked less than 100 cigarettes in their lifetime, lung airways were smaller in women, which can...

Newts unleashed: Limb muscle regeneration needs metamorphosis and body growth

Researchers have found that muscle fibers in Japanese Fire-bellied Newts have an intrinsic ability to dedifferentiate, or reprogram, and contribute to limb regeneration. The results indicate that changes in the niche (the environment outside the cell) during metamorphosis and body growth are needed to unleash this ability. This study provides a key basis for future research on dedifferentiation,...

How ADAR1 mutation leads to self-destructive inflammation

A new study shows how mutation of the ADAR1 gene sets off biochemical pathways that produce an autoimmune response that harms the developing brain and other areas of the body. The normal form of the gene produces an RNA-editing enzyme to stop abnormal immune activation when the body misidentifies its own RNA. Mutations in ADAR1 are common in people of northern European descent. When they co-occur...