Science AMA Series: I'm Steven Strogatz, a professor of mathematics at Cornell University in Ithaca, New York. I apply math to biology and physics and love communicating with the public about math through books, radio shows, and New York Times articles, and I’m here today to talk about it. AMA!
Researchers find that one person likely drove Bitcoin from $150 to $1,000, in a new study published in the Journal of Monetary Economics. Unregulated cryptocurrency markets remain vulnerable to manipulation today.
Fracking is one of the least sustainable ways to produce electricity, says new study. When comparing environmental, economic and social sustainability, scientists find shale gas extraction ranks 7th out of 9 different energy sources.
Conservatives are more vulnerable than liberals to "echo chambers" because they are more likely to prioritize conformity and tradition when making judgments and forming their social networks.
More than half of youth and young adults who had consumed energy drinks reported adverse outcomes, some serious enough to warrant seeking medical help. The adverse outcomes were significantly more prevalent than with other sources of caffeine such as coffee.
Wildlife species are being exposed to high levels of rat poison in northwest California, with illegal marijuana farms the most likely source point. Study found 7 of the 10 northern spotted owls and 40% of the 84 barred owls collected tested positive for rat poison.
The Varroa mite may be the biggest threat to honeybees. Now, scientists have found a new way to fight them. Tiny amounts of lithium chloride kill 90% to 100% of mites without killing bees.
The probiotic Lactobacillus reuteri may help treat colicky breastfed babies less than 3 months old. Study has found that the probiotic is twice as likely as a placebo to reduce crying by 50% after three weeks of treatment for colicky babies who are exclusively breastfed.
The "Two Brothers" mummies were found in 1907 with a label showing their mom's name. DNA evidence shows they were not brothers but half-brothers.
Group recreates DNA of man who died in 1827 not using his remains but just DNA samples from his descendants
When an infectious disease cannot be contained, ants engage in “destructive disinfection.” Researchers exposed ant pupae (developing “babies”) to a fungus. The pupae were groomed to remove any signs of the fungus. Then, they were sprayed with formic acid, leaving behind a heavily damaged corpse.
Dietary salt promotes neurovascular and cognitive dysfunction through a gut-initiated TH17 response
Genetically "normal" BRCA-1 genes with abnormal methylation are strongly associated with ovarian cancer. This may have clinical implications as current screening tests do not capture abnormal methylation.
Chemists have synthesised several variants of THC, the active ingredient in cannabis. Its structure can be altered with light, and the researchers have used this to create a new tool that can be used to more effectively study the body’s own cannabinoid system.
Surfers more likely to harbour antibiotic resistant superbugs, study finds - Beach Bums project looked at surfers’ faeces and found they are three times more likely to carry drug-resistant E coli bacteria. Researchers found that surfers swallow ten times more seawater than swimmers.
New Study Links Pregnant Women Taking Acetaminophen with Language Delays in Baby Girls
For the first time, astronomers spot a supermassive black hole that has spewed out material twice, revealing its feeding behavior over time.
A survey of 4000 millionaires found that only at higher levels of wealth are they happier than those at lower levels and that those that inherited their money were less happy than those who earned it
After crows fight they touch and preen each other to make up
In urban streams, persistent pharmaceutical pollution can cause aquatic microbial communities to become resistant to drugs.
Study of 385-million-year-old shark suggests humans and sharks shared common ancestor 440 million years ago
Robust prediction of individual creative ability from brain functional connectivity
Human Emissions Made Ocean Heat Wave 53 Times More Likely - Three 2016 marine heat waves that killed whales, birds, corals, and shellfish from Australia to Alaska were many times more likely thanks to climate change.
Cancer Risk: Why do women with melanoma do better than men
Children who experienced severe peer victimization/bullying were more than twice as likely to report depression or low moods at age 15, and 3 times more likely to report anxiety. The severe victimization group was almost 3.5 times more likely to report serious suicidal thoughts or suicide attempts.
Study finds that global warming exacerbates refugee crises | when temperatures in agricultural areas and seasons at the source countries varied away from an optimal value (of about 20°C), the number of people seeking asylum increased.
Feeding live invertebrate prey in zoos and aquaria: Are there welfare concerns?
Harvard Geoengineering researchers propose seeding of airplane engine exhaust with sulfuric acid (in the stratosphere) for better particle size distribution control that is suited to solar radiation management purposes
Learning Dependent Chromatin Remodeling Highlights Noncoding Regulatory Regions Linked to Autism
Meta-analysis of action video game impact on perceptual, attentional, and cognitive skills. - PubMed
Western University researchers are finding a link between athletes with severe concussions and patients living with ALS — a degenerative neurological disorder.
UK group identifies a novel botulinum toxin gene cluster from Enterococcus species. This is the first complete botulinum toxin gene cluster identified in a non-clostridial genome.
Black Death spread by human fleas and lice, research shows
A new study suggests that older people who have worsening anxiety symptoms may be more likely to develop Alzheimer's disease. Anxiety disorders are common across the United States, thought to affect around 40 million adults each year.
A Military Medicine pilot study finds that meditation brings PTSD symptoms below clinical levels in 80% of veterans within 30 days, an average 54.5% decline in PTL-5 scores among the 46 veterans in the study
Here's a physiological reason why some people are more creative than others
The share of culturally different immigrants is a significant and sizable determinant of anti-immigration votes (research paper)
A study has found that junior surgeons need years of training before becoming excellent surgeons. However, with the advent of robotic surgery, the junior surgeon's practice is significantly reduced, and evidence suggests that junior surgeons don’t acquire the skills they require.
Obesity shaved almost a year off life expectancy in the US, according to a new study PNAS.
Teens using Instagram and Snapchat more than 2 hours/day tend to develop body image concerns, which in turn lead to poorer mental health.
Long tube butterflies use to suck nectar from flowers actually developed before flowering plants did, so it must have originally evolved for a different purpose
Somehow I don't find this surprising. The USA is the *only* developed nation in the world where fundamentalist beliefs are common enough to have an effect on public policy.
Link to abstract:- [Scientific aptitude better explains poor responses to teaching of evolution than psychological conflicts](
Evolution acceptance in children linked to aptitude, not belief. In contrast to adults, acceptance of evolution in schoolchildren in the UK is linked to their scientific aptitude rather than conflicts with belief systems.