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Fitful nightly sleep linked to chronic inflammation, hardened arteries
Scientists tie disrupted slumber to deadly plaque buildup known as atherosclerosis
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Science & Space
The most popular blog posts about science & space on Hacker News. 210 posts.
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All models are wrong, but some are completely wrong
At this critical time in the modern history of the human race, mathematical models have been pushed into the foreground. Epidemic forecasting informs policy and even individual decision-making. Sad…
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Actively speaking two languages protects against cognitive impairment
The prevalence of dementia in places where more than one language is spoken is 50% lower than in regions where the population uses only one languageA study has shown that Alzheimer's patients with a higher degree of bilingualism receive a later diagnosis of mild cognitive impairment
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UChicago doctors see ‘remarkable’ success using ventilator alternatives
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Ancient shell shows days were half-hour shorter 70M years ago
Fossil rudist bivalves ( Vaccinites ) from the Al-Hajar Mountains, United Arab Emirates. Credit: Wikipedia, Wilson44691 – Own work, Public Domain
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How strong is your knot?
MIT mathematicians and engineers have developed a mathematical model that predicts how stable a knot is, based on several key properties, including the number of crossings involved, and the direction in which the rope segments twist as the knot is pulled tight.
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Dopamine and Temporal Difference Learning
Learning and motivation are driven by internal and external rewards. Many of our day-to-day behaviours are guided by predicting, or anticipating, whether a given action will result in a positive (that is, rewarding) outcome. The study of how organisms learn from experience to correctly anticipate rewards has been a…
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Why is 70% isopropyl alcohol a better disinfectant than 99% isopropanol?
How does one solution kill viruses and bacteria on contact, and the other not at all?
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Glucosamine Supplementation Reduces All-Cause Mortality: Study
A recent analysis published in the journal BMJ showed that glucosamine supplementation conveys around a 15% reduction of all-cause mortality.
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Open access to ACM Digital Library during coronavirus pandemic
For the next 3 months, through 6/30/20, ACM is making all work published by ACM in the ACM Digital Library freely accessible.
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CERN Online introductory lectures on quantum computing from 6 November
This content is currently in the process of being archived and integrated into the CERN Library collections.
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Study helps explain why motivation to learn declines with age
MIT neuroscientists have identified a brain circuit critical for learning to make decisions that require evaluating the cost or reward of an action. They showed this circuit is negatively affected by aging and in Huntington’s disease.
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Coronavirus outbreak likely now ‘gathering steam’
Harvard’s Marc Lipsitch said evidence indicates that the international cordon keeping coronavirus cases bottled up in China is a leaky one, and it’s likely that the relative handful of global cases reported so far are undercounted. If true, that will lead to widespread illness internationally, including in the U.S.
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All systems go for UK’s £55M fusion energy experiment
Our mission is to lead the delivery of sustainable fusion energy to maximise scientific and UK economic benefit.
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Adult immune systems ‘remember’ germs to which they’ve never been exposed (2013)
A new study shows that, contrary to established dogma, key immune cells in healthy adults somehow acquire "memory" of microbes that have never entered their bodies.
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The Nobel Prize in Chemistry 2020
The Nobel Prize in Chemistry 2020 was awarded jointly to Emmanuelle Charpentier and Jennifer A. Doudna "for the development of a method for genome editing"
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Machine keeps human livers alive for one week outside of the body
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FDA grants emergency use authorization for 5-13 minute Covid-19 test
Available on the portable ID NOW platform, Abbott's molecular COVID-19 test delivers results in minutes in a variety of healthcare settings.
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Emotional headlines have an impact regardless of the credibility of the source
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Study identifies reasons for soaring nuclear plant cost overruns in the U.S.
MIT researchers have analyzed the causes of many cost overruns on new nuclear power plants in the U.S., which have soared in the past 50 years. The findings may help designers of new plants build in resilience to prevent such added costs.
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Portable MRI promises to provide immediate diagnosis in virtually any setting
New Yale research represents the first known attempt to deploy a mobile, bedside MRI, which promises to provide immediate diagnosis in virtually any setting.
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Treating children for worms yields long-term benefits, says new study
Children who receive a few extra years of deworming treatment eventually have better jobs, higher incomes, says study led by Berkeley economist Edward Miguel.
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Research team discovers breakthrough with potential to reverse Alzheimer's
Wayne Chen's lab at UCalgary identifies a way to interrupt and prevent progression of devastating condition
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AI model detects asymptomatic Covid-19 infections through phone-recorded coughs
An artificial intelligence model can detect people who are asymptomatic with Covid-19, through cellphone-recorded coughs. The work was led by Brian Subirana and colleagues at the MIT Auto-ID Lab.