Новости за 01.03.2023

Method swaps out oxidants and reductants for a visible-light catalyst

A bill that would empower the US president to ban TikTok from all devices nationwide has advanced beyond committee for discussion by Congress

Ever since Arizona was first colonised, politicians and entrepeneurs have sold residents the idea that human ingenuity can craft a solution to water shortfalls. It can't, argues Natalie Koch

A flu virus found in a sturgeon resembles the predicted ancestor of all known forms of influenza, hinting that the virus first evolved in fish

Three sightings of the dusky tetraka suggest that its preferred habitat is by mountain streams with rocky banks – which is not where people had been previously searching for it.

A clock that ticks using vibrations of strontium molecules could be used to test Albert Einstein’s theory of relativity or to search for forces that have yet to be described

Thousands of pink-footed geese have begun migrating to a remote Arctic island to breed, showing some migratory birds can adapt rapidly to a warming world

When two forms of hydrogen smash together an unusual process called quantum tunnelling can occur. Researchers have now worked out how rarely it happens

Satellite data shows rainfall in tropical regions across the globe has declined in deforested areas in line with what climate models have been predicting

The Double Asteroid Redirection Test smashed into the asteroid Dimorphos in 2022, and the huge plume of rubble from the collision more than tripled the momentum transferred from the spacecraft to the asteroid

Readers discuss prospecting, chirping and cracking

Download the puzzles from the March print issue of Chemistry World

The chemist introduced the guidelines more than 25 years ago. Drug designers still disagree about their value

An unusually cold and wet Californian winter has caused mudslides, damaged infrastructure – and topped up the state’s depleted reservoirs

An unusually cold and wet Californian winter has caused mudslides, damaged infrastructure – and topped up the state’s depleted reservoirs

Advanced designs could transform x-ray science economics, reducing the cost per experiment

Widespread cases of long covid have shone a spotlight on the role viral infections play in previously neglected conditions like chronic fatigue syndrome and fibromyalgia

The solar system’s largest planet, Jupiter, and its brightest planet, Venus, will appear to touch in the sky tonight – here’s why

As regular readers will know, I’ve been running the Sciencebase site since July 1999. Its precursor, Elemental Discoveries, had various homes on the web from December 1995 until that fateful summer. There are almost 4000 articles in the archives, so it’s quite a hefty site for a one-man show. Anyway, having played around with various … Continue reading "Updates and an artificial album cover"

Genes reveal striking diversity within similar ice age cultures

Via the New York magazine publication "The Cut", this feature story on the diabetes drug Ozempic, and the folks who are getting non-Novo Nordisk API for weight loss usage(emphasis mine): 

...To get hers, Allison calls up a Los Angeles–based provider she has never seen or met, sends over $625, and is shipped a monthly supply. What she calls Ozempic is not the brand-name product pre-packaged in a sky-blue injector pen by Novo Nordisk, the Danish pharmaceutical company that makes and markets the drug. Читать дальше...

The practical importance of N-heterocyclic carbenes continues to grow

TL:DR – A number of people were reaching Sciencebase searching for the phrase ChatGPT beam search so I asked ChatGPT itself to give me a definition. I then asked it to create a glossary of common GPT terms. ChatGPT, the AI language model is essentially an incredibly sophisticated autocomplete program that responds to text prompts … Continue reading "ChatGPT beam search and a GPT glossary"

The Falkor (too), a 100-metre, state-of-the-art research vessel, is scheduled to set sail on 3 March to look for hydrothermal vents and undiscovered organisms, potentially shedding light on how life may have arisen on other planets

Integral metal–organic framework could let wood in construction sequester greenhouse gas